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authorJason Gunthorpe <jgg@mellanox.com>2019-06-10 16:49:11 -0300
committerDoug Ledford <dledford@redhat.com>2019-06-13 09:59:49 -0400
commit2d3c72ed504196edb2f22a08cb03a0f9fb7e564f (patch)
tree3b8de897122f7984eba970f39a13c1fc22a6c11b
parentRDMA/ipoib: Remove check for ETH_SS_TEST (diff)
downloadlinux-dev-2d3c72ed504196edb2f22a08cb03a0f9fb7e564f.tar.xz
linux-dev-2d3c72ed504196edb2f22a08cb03a0f9fb7e564f.zip
rdma: Remove nes
This driver was first merged over 10 years ago and has not seen major activity by the authors in the last 7 years. However, in that time it has been patched 150 times to adapt it to changing kernel APIs. Further, the hardware has several issues, like not supporting 64 bit DMA, that make it rather uninteresting for use with modern systems and RDMA. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--Documentation/ABI/stable/sysfs-class-infiniband17
-rw-r--r--MAINTAINERS8
-rw-r--r--drivers/infiniband/Kconfig1
-rw-r--r--drivers/infiniband/hw/Makefile1
-rw-r--r--drivers/infiniband/hw/nes/Kconfig15
-rw-r--r--drivers/infiniband/hw/nes/Makefile3
-rw-r--r--drivers/infiniband/hw/nes/nes.c1205
-rw-r--r--drivers/infiniband/hw/nes/nes.h574
-rw-r--r--drivers/infiniband/hw/nes/nes_cm.c3992
-rw-r--r--drivers/infiniband/hw/nes/nes_cm.h470
-rw-r--r--drivers/infiniband/hw/nes/nes_context.h193
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c3887
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.h1380
-rw-r--r--drivers/infiniband/hw/nes/nes_mgt.c1155
-rw-r--r--drivers/infiniband/hw/nes/nes_mgt.h97
-rw-r--r--drivers/infiniband/hw/nes/nes_nic.c1870
-rw-r--r--drivers/infiniband/hw/nes/nes_utils.c913
-rw-r--r--drivers/infiniband/hw/nes/nes_verbs.c3721
-rw-r--r--drivers/infiniband/hw/nes/nes_verbs.h198
19 files changed, 0 insertions, 19700 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-infiniband b/Documentation/ABI/stable/sysfs-class-infiniband
index 17211ceb9bf4..aed21b8916a2 100644
--- a/Documentation/ABI/stable/sysfs-class-infiniband
+++ b/Documentation/ABI/stable/sysfs-class-infiniband
@@ -423,23 +423,6 @@ Description:
(e.g. driver restart on the VM which owns the VF).
-sysfs interface for NetEffect RNIC Low-Level iWARP driver (nes)
----------------------------------------------------------------
-
-What: /sys/class/infiniband/nesX/hw_rev
-What: /sys/class/infiniband/nesX/hca_type
-What: /sys/class/infiniband/nesX/board_id
-Date: Feb, 2008
-KernelVersion: v2.6.25
-Contact: linux-rdma@vger.kernel.org
-Description:
- hw_rev: (RO) Hardware revision number
-
- hca_type: (RO) Host Channel Adapter type (NEX020)
-
- board_id: (RO) Manufacturing board id
-
-
sysfs interface for Chelsio T4/T5 RDMA driver (cxgb4)
-----------------------------------------------------
diff --git a/MAINTAINERS b/MAINTAINERS
index 5cfbea4ce575..9ac03f3e3bd5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10830,14 +10830,6 @@ F: driver/net/net_failover.c
F: include/net/net_failover.h
F: Documentation/networking/net_failover.rst
-NETEFFECT IWARP RNIC DRIVER (IW_NES)
-M: Faisal Latif <faisal.latif@intel.com>
-L: linux-rdma@vger.kernel.org
-W: http://www.intel.com/Products/Server/Adapters/Server-Cluster/Server-Cluster-overview.htm
-S: Supported
-F: drivers/infiniband/hw/nes/
-F: include/uapi/rdma/nes-abi.h
-
NETEM NETWORK EMULATOR
M: Stephen Hemminger <stephen@networkplumber.org>
L: netem@lists.linux-foundation.org (moderated for non-subscribers)
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index cbaafa4e0302..0fe6f76e8fdc 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -86,7 +86,6 @@ source "drivers/infiniband/hw/efa/Kconfig"
source "drivers/infiniband/hw/i40iw/Kconfig"
source "drivers/infiniband/hw/mlx4/Kconfig"
source "drivers/infiniband/hw/mlx5/Kconfig"
-source "drivers/infiniband/hw/nes/Kconfig"
source "drivers/infiniband/hw/ocrdma/Kconfig"
source "drivers/infiniband/hw/vmw_pvrdma/Kconfig"
source "drivers/infiniband/hw/usnic/Kconfig"
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index 77094be1b262..433fca59febd 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -7,7 +7,6 @@ obj-$(CONFIG_INFINIBAND_EFA) += efa/
obj-$(CONFIG_INFINIBAND_I40IW) += i40iw/
obj-$(CONFIG_MLX4_INFINIBAND) += mlx4/
obj-$(CONFIG_MLX5_INFINIBAND) += mlx5/
-obj-$(CONFIG_INFINIBAND_NES) += nes/
obj-$(CONFIG_INFINIBAND_OCRDMA) += ocrdma/
obj-$(CONFIG_INFINIBAND_VMWARE_PVRDMA) += vmw_pvrdma/
obj-$(CONFIG_INFINIBAND_USNIC) += usnic/
diff --git a/drivers/infiniband/hw/nes/Kconfig b/drivers/infiniband/hw/nes/Kconfig
deleted file mode 100644
index 52caae954e4a..000000000000
--- a/drivers/infiniband/hw/nes/Kconfig
+++ /dev/null
@@ -1,15 +0,0 @@
-config INFINIBAND_NES
- tristate "NetEffect RNIC Driver"
- depends on PCI && INET
- select LIBCRC32C
- ---help---
- This is the RDMA Network Interface Card (RNIC) driver for
- NetEffect Ethernet Cluster Server Adapters.
-
-config INFINIBAND_NES_DEBUG
- bool "Verbose debugging output"
- depends on INFINIBAND_NES
- default n
- ---help---
- This option enables debug messages from the NetEffect RNIC
- driver. Select this if you are diagnosing a problem.
diff --git a/drivers/infiniband/hw/nes/Makefile b/drivers/infiniband/hw/nes/Makefile
deleted file mode 100644
index 97820c23ecef..000000000000
--- a/drivers/infiniband/hw/nes/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_INFINIBAND_NES) += iw_nes.o
-
-iw_nes-objs := nes.o nes_hw.o nes_nic.o nes_utils.o nes_verbs.o nes_cm.o nes_mgt.o
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
deleted file mode 100644
index e00add6d78ec..000000000000
--- a/drivers/infiniband/hw/nes/nes.c
+++ /dev/null
@@ -1,1205 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/if_arp.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/byteorder.h>
-#include <rdma/ib_smi.h>
-#include <rdma/ib_verbs.h>
-#include <rdma/ib_pack.h>
-#include <rdma/iw_cm.h>
-
-#include "nes.h"
-
-#include <net/netevent.h>
-#include <net/neighbour.h>
-#include <linux/route.h>
-#include <net/ip_fib.h>
-
-MODULE_AUTHOR("NetEffect");
-MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
-MODULE_LICENSE("Dual BSD/GPL");
-
-int interrupt_mod_interval = 0;
-
-/* Interoperability */
-int mpa_version = 1;
-module_param(mpa_version, int, 0644);
-MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
-
-/* Interoperability */
-int disable_mpa_crc = 0;
-module_param(disable_mpa_crc, int, 0644);
-MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
-
-unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
-module_param(nes_drv_opt, int, 0644);
-MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
-
-unsigned int nes_debug_level = 0;
-module_param_named(debug_level, nes_debug_level, uint, 0644);
-MODULE_PARM_DESC(debug_level, "Enable debug output level");
-
-unsigned int wqm_quanta = 0x10000;
-module_param(wqm_quanta, int, 0644);
-MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
-
-static bool limit_maxrdreqsz;
-module_param(limit_maxrdreqsz, bool, 0644);
-MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
-
-LIST_HEAD(nes_adapter_list);
-static LIST_HEAD(nes_dev_list);
-
-atomic_t qps_destroyed;
-
-static unsigned int ee_flsh_adapter;
-static unsigned int sysfs_nonidx_addr;
-static unsigned int sysfs_idx_addr;
-
-static const struct pci_device_id nes_pci_table[] = {
- { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
- { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
- {0}
-};
-
-MODULE_DEVICE_TABLE(pci, nes_pci_table);
-
-static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
-static int nes_net_event(struct notifier_block *, unsigned long, void *);
-static int nes_notifiers_registered;
-
-
-static struct notifier_block nes_inetaddr_notifier = {
- .notifier_call = nes_inetaddr_event
-};
-
-static struct notifier_block nes_net_notifier = {
- .notifier_call = nes_net_event
-};
-
-/**
- * nes_inetaddr_event
- */
-static int nes_inetaddr_event(struct notifier_block *notifier,
- unsigned long event, void *ptr)
-{
- struct in_ifaddr *ifa = ptr;
- struct net_device *event_netdev = ifa->ifa_dev->dev;
- struct nes_device *nesdev;
- struct net_device *netdev;
- struct net_device *upper_dev;
- struct nes_vnic *nesvnic;
- unsigned int is_bonded;
-
- nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
- &ifa->ifa_address, &ifa->ifa_mask);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
- nesdev, nesdev->netdev[0]->name);
- netdev = nesdev->netdev[0];
- nesvnic = netdev_priv(netdev);
- upper_dev = netdev_master_upper_dev_get(netdev);
- is_bonded = netif_is_bond_slave(netdev) &&
- (upper_dev == event_netdev);
- if ((netdev == event_netdev) || is_bonded) {
- if (nesvnic->rdma_enabled == 0) {
- nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
- " RDMA is not enabled.\n",
- netdev->name);
- return NOTIFY_OK;
- }
- /* we have ifa->ifa_address/mask here if we need it */
- switch (event) {
- case NETDEV_DOWN:
- nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
- nes_write_indexed(nesdev,
- NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
-
- nes_manage_arp_cache(netdev, netdev->dev_addr,
- ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
- nesvnic->local_ipaddr = 0;
- if (is_bonded)
- continue;
- else
- return NOTIFY_OK;
- break;
- case NETDEV_UP:
- nes_debug(NES_DBG_NETDEV, "event:UP\n");
-
- if (nesvnic->local_ipaddr != 0) {
- nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
- return NOTIFY_OK;
- }
- /* fall through */
- case NETDEV_CHANGEADDR:
- /* Add the address to the IP table */
- if (upper_dev) {
- struct in_device *in;
-
- rcu_read_lock();
- in = __in_dev_get_rcu(upper_dev);
- nesvnic->local_ipaddr = in->ifa_list->ifa_address;
- rcu_read_unlock();
- } else {
- nesvnic->local_ipaddr = ifa->ifa_address;
- }
-
- nes_write_indexed(nesdev,
- NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
- ntohl(nesvnic->local_ipaddr));
- nes_manage_arp_cache(netdev, netdev->dev_addr,
- ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
- if (is_bonded)
- continue;
- else
- return NOTIFY_OK;
- break;
- default:
- break;
- }
- }
- }
-
- return NOTIFY_DONE;
-}
-
-
-/**
- * nes_net_event
- */
-static int nes_net_event(struct notifier_block *notifier,
- unsigned long event, void *ptr)
-{
- struct neighbour *neigh = ptr;
- struct nes_device *nesdev;
- struct net_device *netdev;
- struct nes_vnic *nesvnic;
-
- switch (event) {
- case NETEVENT_NEIGH_UPDATE:
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
- netdev = nesdev->netdev[0];
- nesvnic = netdev_priv(netdev);
- if (netdev == neigh->dev) {
- if (nesvnic->rdma_enabled == 0) {
- nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
- netdev->name);
- } else {
- if (neigh->nud_state & NUD_VALID) {
- nes_manage_arp_cache(neigh->dev, neigh->ha,
- ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
- } else {
- nes_manage_arp_cache(neigh->dev, neigh->ha,
- ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
- }
- }
- return NOTIFY_OK;
- }
- }
- break;
- default:
- nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
- break;
- }
-
- return NOTIFY_DONE;
-}
-
-
-/**
- * nes_add_ref
- */
-void nes_add_ref(struct ib_qp *ibqp)
-{
- struct nes_qp *nesqp;
-
- nesqp = to_nesqp(ibqp);
- nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
- ibqp->qp_num, atomic_read(&nesqp->refcount));
- atomic_inc(&nesqp->refcount);
-}
-
-static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
-{
- unsigned long flags;
- struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- atomic_inc(&qps_destroyed);
-
- /* Free the control structures */
-
- if (nesqp->pbl_vbase) {
- pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
- nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_256pbl++;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
- nesqp->pbl_vbase = NULL;
-
- } else {
- pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
- nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
- }
- nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
-
- nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
- kfree(nesqp->allocated_buffer);
-
-}
-
-/**
- * nes_rem_ref
- */
-void nes_rem_ref(struct ib_qp *ibqp)
-{
- u64 u64temp;
- struct nes_qp *nesqp;
- struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- u32 opcode;
-
- nesqp = to_nesqp(ibqp);
-
- if (atomic_read(&nesqp->refcount) == 0) {
- printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
- __func__, ibqp->qp_num, nesqp->last_aeq);
- BUG();
- }
-
- if (atomic_dec_and_test(&nesqp->refcount)) {
- if (nesqp->pau_mode)
- nes_destroy_pau_qp(nesdev, nesqp);
-
- /* Destroy the QP */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
- return;
- }
- cqp_request->waiting = 0;
- cqp_request->callback = 1;
- cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
- cqp_request->cqp_callback_pointer = nesqp;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
-
- if (nesqp->hte_added) {
- opcode |= NES_CQP_QP_DEL_HTE;
- nesqp->hte_added = 0;
- }
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
- u64temp = (u64)nesqp->nesqp_context_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
- nes_post_cqp_request(nesdev, cqp_request);
- }
-}
-
-
-/**
- * nes_get_qp
- */
-struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
-{
- struct nes_vnic *nesvnic = to_nesvnic(device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
- return NULL;
-
- return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
-}
-
-
-/**
- * nes_print_macaddr
- */
-static void nes_print_macaddr(struct net_device *netdev)
-{
- nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
- netdev->name, netdev->dev_addr, netdev->irq);
-}
-
-/**
- * nes_interrupt - handle interrupts
- */
-static irqreturn_t nes_interrupt(int irq, void *dev_id)
-{
- struct nes_device *nesdev = (struct nes_device *)dev_id;
- int handled = 0;
- u32 int_mask;
- u32 int_req;
- u32 int_stat;
- u32 intf_int_stat;
- u32 timer_stat;
-
- if (nesdev->msi_enabled) {
- /* No need to read the interrupt pending register if msi is enabled */
- handled = 1;
- } else {
- if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
- /* Master interrupt enable provides synchronization for kicking off bottom half
- when interrupt sharing is going on */
- int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
- if (int_mask & 0x80000000) {
- /* Check interrupt status to see if this might be ours */
- int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
- int_req = nesdev->int_req;
- if (int_stat&int_req) {
- /* if interesting CEQ or AEQ is pending, claim the interrupt */
- if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
- handled = 1;
- } else {
- if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
- /* Timer might be running but might be for another function */
- timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
- if ((timer_stat & nesdev->timer_int_req) != 0) {
- handled = 1;
- }
- }
- if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
- (handled == 0)) {
- intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
- if ((intf_int_stat & nesdev->intf_int_req) != 0) {
- handled = 1;
- }
- }
- }
- if (handled) {
- nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
- int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
- /* Save off the status to save an additional read */
- nesdev->int_stat = int_stat;
- nesdev->napi_isr_ran = 1;
- }
- }
- }
- } else {
- handled = nes_read32(nesdev->regs+NES_INT_PENDING);
- }
- }
-
- if (handled) {
-
- if (nes_napi_isr(nesdev) == 0) {
- tasklet_schedule(&nesdev->dpc_tasklet);
-
- }
- return IRQ_HANDLED;
- } else {
- return IRQ_NONE;
- }
-}
-
-
-/**
- * nes_probe - Device initialization
- */
-static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
-{
- struct net_device *netdev = NULL;
- struct nes_device *nesdev = NULL;
- int ret = 0;
- void __iomem *mmio_regs = NULL;
- u8 hw_rev;
-
- printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
- DRV_VERSION, pci_name(pcidev));
-
- ret = pci_enable_device(pcidev);
- if (ret) {
- printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
- goto bail0;
- }
-
- nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
- (long unsigned int)pci_resource_start(pcidev, BAR_0),
- (long unsigned int)pci_resource_len(pcidev, BAR_0));
- nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
- (long unsigned int)pci_resource_start(pcidev, BAR_1),
- (long unsigned int)pci_resource_len(pcidev, BAR_1));
-
- /* Make sure PCI base addr are MMIO */
- if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
- !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
- printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
- ret = -ENODEV;
- goto bail1;
- }
-
- /* Reserve PCI I/O and memory resources */
- ret = pci_request_regions(pcidev, DRV_NAME);
- if (ret) {
- printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
- goto bail1;
- }
-
- if ((sizeof(dma_addr_t) > 4)) {
- ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
- if (ret < 0) {
- printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
- goto bail2;
- }
- ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
- if (ret) {
- printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
- goto bail2;
- }
- } else {
- ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
- if (ret < 0) {
- printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
- goto bail2;
- }
- ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
- if (ret) {
- printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
- goto bail2;
- }
- }
-
- pci_set_master(pcidev);
-
- /* Allocate hardware structure */
- nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
- if (!nesdev) {
- ret = -ENOMEM;
- goto bail2;
- }
-
- nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
- nesdev->pcidev = pcidev;
- pci_set_drvdata(pcidev, nesdev);
-
- pci_read_config_byte(pcidev, 0x0008, &hw_rev);
- nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
-
- spin_lock_init(&nesdev->indexed_regs_lock);
-
- /* Remap the PCI registers in adapter BAR0 to kernel VA space */
- mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
- pci_resource_len(pcidev, BAR_0));
- if (mmio_regs == NULL) {
- printk(KERN_ERR PFX "Unable to remap BAR0\n");
- ret = -EIO;
- goto bail3;
- }
- nesdev->regs = mmio_regs;
- nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
-
- /* Ensure interrupts are disabled */
- nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
-
- if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
- if (!pci_enable_msi(nesdev->pcidev)) {
- nesdev->msi_enabled = 1;
- nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
- pci_name(pcidev));
- } else {
- nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
- pci_name(pcidev));
- }
- } else {
- nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
- pci_name(pcidev));
- }
-
- nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
- nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
-
- /* Init the adapter */
- nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
- if (!nesdev->nesadapter) {
- printk(KERN_ERR PFX "Unable to initialize adapter.\n");
- ret = -ENOMEM;
- goto bail5;
- }
- nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
- nesdev->nesadapter->wqm_quanta = wqm_quanta;
-
- /* nesdev->base_doorbell_index =
- nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
- nesdev->base_doorbell_index = 1;
- nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
- if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
- switch (PCI_FUNC(nesdev->pcidev->devfn) %
- nesdev->nesadapter->port_count) {
- case 1:
- nesdev->mac_index = 2;
- break;
- case 2:
- nesdev->mac_index = 1;
- break;
- case 3:
- nesdev->mac_index = 3;
- break;
- case 0:
- default:
- nesdev->mac_index = 0;
- }
- } else {
- nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
- nesdev->nesadapter->port_count;
- }
-
- if ((limit_maxrdreqsz ||
- ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
- (hw_rev == NE020_REV1))) &&
- (pcie_get_readrq(pcidev) > 256)) {
- if (pcie_set_readrq(pcidev, 256))
- printk(KERN_ERR PFX "Unable to set max read request"
- " to 256 bytes\n");
- else
- nes_debug(NES_DBG_INIT, "Max read request size set"
- " to 256 bytes\n");
- }
-
- tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
-
- /* bring up the Control QP */
- if (nes_init_cqp(nesdev)) {
- ret = -ENODEV;
- goto bail6;
- }
-
- /* Arm the CCQ */
- nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- PCI_FUNC(nesdev->pcidev->devfn));
- nes_read32(nesdev->regs+NES_CQE_ALLOC);
-
- /* Enable the interrupts */
- nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
- (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
- if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
- nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
- }
-
- /* TODO: This really should be the first driver to load, not function 0 */
- if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
- /* pick up PCI and critical errors if the first driver to load */
- nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
- nesdev->int_req |= NES_INT_INTF;
- } else {
- nesdev->intf_int_req = 0;
- }
- nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
-
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
-
- /* deal with both periodic and one_shot */
- nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
- nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
- nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
- PCI_FUNC(nesdev->pcidev->devfn),
- nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
-
- nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
-
- list_add_tail(&nesdev->list, &nes_dev_list);
-
- /* Request an interrupt line for the driver */
- ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
- if (ret) {
- printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
- pci_name(pcidev), pcidev->irq);
- goto bail65;
- }
-
- nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-
- if (nes_notifiers_registered == 0) {
- register_inetaddr_notifier(&nes_inetaddr_notifier);
- register_netevent_notifier(&nes_net_notifier);
- }
- nes_notifiers_registered++;
-
- INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
-
- /* Initialize network devices */
- netdev = nes_netdev_init(nesdev, mmio_regs);
- if (netdev == NULL) {
- ret = -ENOMEM;
- goto bail7;
- }
-
- /* Register network device */
- ret = register_netdev(netdev);
- if (ret) {
- printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
- nes_netdev_destroy(netdev);
- goto bail7;
- }
-
- nes_print_macaddr(netdev);
-
- nesdev->netdev_count++;
- nesdev->nesadapter->netdev_count++;
-
- printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
- pci_name(pcidev));
- return 0;
-
- bail7:
- printk(KERN_ERR PFX "bail7\n");
- while (nesdev->netdev_count > 0) {
- nesdev->netdev_count--;
- nesdev->nesadapter->netdev_count--;
-
- unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
- nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
- }
-
- nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
- nesdev->netdev_count, nesdev->nesadapter->netdev_count);
-
- nes_notifiers_registered--;
- if (nes_notifiers_registered == 0) {
- unregister_netevent_notifier(&nes_net_notifier);
- unregister_inetaddr_notifier(&nes_inetaddr_notifier);
- }
-
- list_del(&nesdev->list);
- nes_destroy_cqp(nesdev);
-
- bail65:
- printk(KERN_ERR PFX "bail65\n");
- free_irq(pcidev->irq, nesdev);
- if (nesdev->msi_enabled) {
- pci_disable_msi(pcidev);
- }
- bail6:
- printk(KERN_ERR PFX "bail6\n");
- tasklet_kill(&nesdev->dpc_tasklet);
- /* Deallocate the Adapter Structure */
- nes_destroy_adapter(nesdev->nesadapter);
-
- bail5:
- printk(KERN_ERR PFX "bail5\n");
- iounmap(nesdev->regs);
-
- bail3:
- printk(KERN_ERR PFX "bail3\n");
- kfree(nesdev);
-
- bail2:
- pci_release_regions(pcidev);
-
- bail1:
- pci_disable_device(pcidev);
-
- bail0:
- return ret;
-}
-
-
-/**
- * nes_remove - unload from kernel
- */
-static void nes_remove(struct pci_dev *pcidev)
-{
- struct nes_device *nesdev = pci_get_drvdata(pcidev);
- struct net_device *netdev;
- int netdev_index = 0;
- unsigned long flags;
-
- if (nesdev->netdev_count) {
- netdev = nesdev->netdev[netdev_index];
- if (netdev) {
- netif_stop_queue(netdev);
- unregister_netdev(netdev);
- nes_netdev_destroy(netdev);
-
- nesdev->netdev[netdev_index] = NULL;
- nesdev->netdev_count--;
- nesdev->nesadapter->netdev_count--;
- }
- }
-
- nes_notifiers_registered--;
- if (nes_notifiers_registered == 0) {
- unregister_netevent_notifier(&nes_net_notifier);
- unregister_inetaddr_notifier(&nes_inetaddr_notifier);
- }
-
- list_del(&nesdev->list);
- nes_destroy_cqp(nesdev);
-
- free_irq(pcidev->irq, nesdev);
- tasklet_kill(&nesdev->dpc_tasklet);
-
- spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
- if (nesdev->link_recheck) {
- spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
- cancel_delayed_work_sync(&nesdev->work);
- } else {
- spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
- }
-
- /* Deallocate the Adapter Structure */
- nes_destroy_adapter(nesdev->nesadapter);
-
- if (nesdev->msi_enabled) {
- pci_disable_msi(pcidev);
- }
-
- iounmap(nesdev->regs);
- kfree(nesdev);
-
- /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
- pci_release_regions(pcidev);
- pci_disable_device(pcidev);
- pci_set_drvdata(pcidev, NULL);
-}
-
-
-static ssize_t adapter_show(struct device_driver *ddp, char *buf)
-{
- unsigned int devfn = 0xffffffff;
- unsigned char bus_number = 0xff;
- unsigned int i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- devfn = nesdev->pcidev->devfn;
- bus_number = nesdev->pcidev->bus->number;
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
-}
-
-static ssize_t adapter_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- ee_flsh_adapter = simple_strtoul(p, &p, 10);
- return strnlen(buf, count);
-}
-
-static ssize_t eeprom_cmd_show(struct device_driver *ddp, char *buf)
-{
- u32 eeprom_cmd = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
- break;
- }
- i++;
- }
- return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
-}
-
-static ssize_t eeprom_cmd_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t eeprom_data_show(struct device_driver *ddp, char *buf)
-{
- u32 eeprom_data = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
-}
-
-static ssize_t eeprom_data_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t flash_cmd_show(struct device_driver *ddp, char *buf)
-{
- u32 flash_cmd = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
-}
-
-static ssize_t flash_cmd_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t flash_data_show(struct device_driver *ddp, char *buf)
-{
- u32 flash_data = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
-}
-
-static ssize_t flash_data_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write32(nesdev->regs + NES_FLASH_DATA, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t nonidx_addr_show(struct device_driver *ddp, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
-}
-
-static ssize_t nonidx_addr_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
- sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
-
- return strnlen(buf, count);
-}
-
-static ssize_t nonidx_data_show(struct device_driver *ddp, char *buf)
-{
- u32 nonidx_data = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
-}
-
-static ssize_t nonidx_data_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t idx_addr_show(struct device_driver *ddp, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
-}
-
-static ssize_t idx_addr_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
- sysfs_idx_addr = simple_strtoul(p, &p, 16);
-
- return strnlen(buf, count);
-}
-
-static ssize_t idx_data_show(struct device_driver *ddp, char *buf)
-{
- u32 idx_data = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
-}
-
-static ssize_t idx_data_store(struct device_driver *ddp,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- val = simple_strtoul(p, &p, 16);
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nes_write_indexed(nesdev, sysfs_idx_addr, val);
- break;
- }
- i++;
- }
- }
- return strnlen(buf, count);
-}
-
-static ssize_t wqm_quanta_show(struct device_driver *ddp, char *buf)
-{
- u32 wqm_quanta_value = 0xdead;
- u32 i = 0;
- struct nes_device *nesdev;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
- break;
- }
- i++;
- }
-
- return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
-}
-
-static ssize_t wqm_quanta_store(struct device_driver *ddp, const char *buf,
- size_t count)
-{
- unsigned long wqm_quanta_value;
- u32 wqm_config1;
- u32 i = 0;
- struct nes_device *nesdev;
-
- if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
- return -EINVAL;
-
- list_for_each_entry(nesdev, &nes_dev_list, list) {
- if (i == ee_flsh_adapter) {
- nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
- wqm_config1 = nes_read_indexed(nesdev,
- NES_IDX_WQM_CONFIG1);
- nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
- ((wqm_quanta_value << 1) |
- (wqm_config1 & 0x00000001)));
- break;
- }
- i++;
- }
- return strnlen(buf, count);
-}
-
-static DRIVER_ATTR_RW(adapter);
-static DRIVER_ATTR_RW(eeprom_cmd);
-static DRIVER_ATTR_RW(eeprom_data);
-static DRIVER_ATTR_RW(flash_cmd);
-static DRIVER_ATTR_RW(flash_data);
-static DRIVER_ATTR_RW(nonidx_addr);
-static DRIVER_ATTR_RW(nonidx_data);
-static DRIVER_ATTR_RW(idx_addr);
-static DRIVER_ATTR_RW(idx_data);
-static DRIVER_ATTR_RW(wqm_quanta);
-
-static struct attribute *nes_attrs[] = {
- &driver_attr_adapter.attr,
- &driver_attr_eeprom_cmd.attr,
- &driver_attr_eeprom_data.attr,
- &driver_attr_flash_cmd.attr,
- &driver_attr_flash_data.attr,
- &driver_attr_nonidx_addr.attr,
- &driver_attr_nonidx_data.attr,
- &driver_attr_idx_addr.attr,
- &driver_attr_idx_data.attr,
- &driver_attr_wqm_quanta.attr,
- NULL,
-};
-ATTRIBUTE_GROUPS(nes);
-
-static struct pci_driver nes_pci_driver = {
- .name = DRV_NAME,
- .id_table = nes_pci_table,
- .probe = nes_probe,
- .remove = nes_remove,
- .groups = nes_groups,
-};
-
-
-/**
- * nes_init_module - module initialization entry point
- */
-static int __init nes_init_module(void)
-{
- int retval;
-
- retval = nes_cm_start();
- if (retval) {
- printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
- return retval;
- }
- return pci_register_driver(&nes_pci_driver);
-}
-
-
-/**
- * nes_exit_module - module unload entry point
- */
-static void __exit nes_exit_module(void)
-{
- nes_cm_stop();
-
- pci_unregister_driver(&nes_pci_driver);
-}
-
-
-module_init(nes_init_module);
-module_exit(nes_exit_module);
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
deleted file mode 100644
index a895fe980d10..000000000000
--- a/drivers/infiniband/hw/nes/nes.h
+++ /dev/null
@@ -1,574 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef __NES_H
-#define __NES_H
-
-#include <linux/netdevice.h>
-#include <linux/inetdevice.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/workqueue.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#include <linux/crc32c.h>
-
-#include <rdma/ib_smi.h>
-#include <rdma/ib_verbs.h>
-#include <rdma/ib_pack.h>
-#include <rdma/rdma_cm.h>
-#include <rdma/iw_cm.h>
-#include <rdma/rdma_netlink.h>
-#include <rdma/iw_portmap.h>
-
-#define NES_SEND_FIRST_WRITE
-
-#define QUEUE_DISCONNECTS
-
-#define DRV_NAME "iw_nes"
-#define DRV_VERSION "1.5.0.1"
-#define PFX DRV_NAME ": "
-
-/*
- * NetEffect PCI vendor id and NE010 PCI device id.
- */
-#ifndef PCI_VENDOR_ID_NETEFFECT /* not in pci.ids yet */
-#define PCI_VENDOR_ID_NETEFFECT 0x1678
-#define PCI_DEVICE_ID_NETEFFECT_NE020 0x0100
-#define PCI_DEVICE_ID_NETEFFECT_NE020_KR 0x0110
-#endif
-
-#define NE020_REV 4
-#define NE020_REV1 5
-
-#define BAR_0 0
-#define BAR_1 2
-
-#define RX_BUF_SIZE (1536 + 8)
-#define NES_REG0_SIZE (4 * 1024)
-#define NES_TX_TIMEOUT (6*HZ)
-#define NES_FIRST_QPN 64
-#define NES_SW_CONTEXT_ALIGN 1024
-
-#define NES_MAX_MTU 9000
-
-#define NES_NIC_MAX_NICS 16
-#define NES_MAX_ARP_TABLE_SIZE 4096
-
-#define NES_NIC_CEQ_SIZE 8
-/* NICs will be on a separate CQ */
-#define NES_CCEQ_SIZE ((nesadapter->max_cq / nesadapter->port_count) - 32)
-
-#define NES_MAX_PORT_COUNT 4
-
-#define MAX_DPC_ITERATIONS 128
-
-#define NES_DRV_OPT_ENABLE_MPA_VER_0 0x00000001
-#define NES_DRV_OPT_DISABLE_MPA_CRC 0x00000002
-#define NES_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
-#define NES_DRV_OPT_DISABLE_INTF 0x00000008
-#define NES_DRV_OPT_ENABLE_MSI 0x00000010
-#define NES_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
-#define NES_DRV_OPT_SUPRESS_OPTION_BC 0x00000040
-#define NES_DRV_OPT_NO_INLINE_DATA 0x00000080
-#define NES_DRV_OPT_DISABLE_INT_MOD 0x00000100
-#define NES_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
-#define NES_DRV_OPT_ENABLE_PAU 0x00000400
-
-#define NES_AEQ_EVENT_TIMEOUT 2500
-#define NES_DISCONNECT_EVENT_TIMEOUT 2000
-
-/* debug levels */
-/* must match userspace */
-#define NES_DBG_HW 0x00000001
-#define NES_DBG_INIT 0x00000002
-#define NES_DBG_ISR 0x00000004
-#define NES_DBG_PHY 0x00000008
-#define NES_DBG_NETDEV 0x00000010
-#define NES_DBG_CM 0x00000020
-#define NES_DBG_CM1 0x00000040
-#define NES_DBG_NIC_RX 0x00000080
-#define NES_DBG_NIC_TX 0x00000100
-#define NES_DBG_CQP 0x00000200
-#define NES_DBG_MMAP 0x00000400
-#define NES_DBG_MR 0x00000800
-#define NES_DBG_PD 0x00001000
-#define NES_DBG_CQ 0x00002000
-#define NES_DBG_QP 0x00004000
-#define NES_DBG_MOD_QP 0x00008000
-#define NES_DBG_AEQ 0x00010000
-#define NES_DBG_IW_RX 0x00020000
-#define NES_DBG_IW_TX 0x00040000
-#define NES_DBG_SHUTDOWN 0x00080000
-#define NES_DBG_PAU 0x00100000
-#define NES_DBG_NLMSG 0x00200000
-#define NES_DBG_RSVD1 0x10000000
-#define NES_DBG_RSVD2 0x20000000
-#define NES_DBG_RSVD3 0x40000000
-#define NES_DBG_RSVD4 0x80000000
-#define NES_DBG_ALL 0xffffffff
-
-#ifdef CONFIG_INFINIBAND_NES_DEBUG
-#define nes_debug(level, fmt, args...) \
-do { \
- if (level & nes_debug_level) \
- printk(KERN_ERR PFX "%s[%u]: " fmt, __func__, __LINE__, ##args); \
-} while (0)
-
-#define NES_EVENT_TIMEOUT 1200000
-#else
-#define nes_debug(level, fmt, args...) no_printk(fmt, ##args)
-
-#define NES_EVENT_TIMEOUT 100000
-#endif
-
-#include "nes_hw.h"
-#include "nes_verbs.h"
-#include "nes_context.h"
-#include <rdma/nes-abi.h>
-#include "nes_cm.h"
-#include "nes_mgt.h"
-
-extern int interrupt_mod_interval;
-extern int nes_if_count;
-extern int mpa_version;
-extern int disable_mpa_crc;
-extern unsigned int nes_drv_opt;
-extern unsigned int nes_debug_level;
-extern unsigned int wqm_quanta;
-extern struct list_head nes_adapter_list;
-
-extern atomic_t cm_connects;
-extern atomic_t cm_accepts;
-extern atomic_t cm_disconnects;
-extern atomic_t cm_closes;
-extern atomic_t cm_connecteds;
-extern atomic_t cm_connect_reqs;
-extern atomic_t cm_rejects;
-extern atomic_t mod_qp_timouts;
-extern atomic_t qps_created;
-extern atomic_t qps_destroyed;
-extern atomic_t sw_qps_destroyed;
-extern u32 mh_detected;
-extern u32 mh_pauses_sent;
-extern u32 cm_packets_sent;
-extern u32 cm_packets_bounced;
-extern u32 cm_packets_created;
-extern u32 cm_packets_received;
-extern u32 cm_packets_dropped;
-extern u32 cm_packets_retrans;
-extern atomic_t cm_listens_created;
-extern atomic_t cm_listens_destroyed;
-extern u32 cm_backlog_drops;
-extern atomic_t cm_loopbacks;
-extern atomic_t cm_nodes_created;
-extern atomic_t cm_nodes_destroyed;
-extern atomic_t cm_accel_dropped_pkts;
-extern atomic_t cm_resets_recvd;
-extern atomic_t pau_qps_created;
-extern atomic_t pau_qps_destroyed;
-
-extern u32 int_mod_timer_init;
-extern u32 int_mod_cq_depth_256;
-extern u32 int_mod_cq_depth_128;
-extern u32 int_mod_cq_depth_32;
-extern u32 int_mod_cq_depth_24;
-extern u32 int_mod_cq_depth_16;
-extern u32 int_mod_cq_depth_4;
-extern u32 int_mod_cq_depth_1;
-
-struct nes_device {
- struct nes_adapter *nesadapter;
- void __iomem *regs;
- void __iomem *index_reg;
- struct pci_dev *pcidev;
- struct net_device *netdev[NES_NIC_MAX_NICS];
- u64 link_status_interrupts;
- struct tasklet_struct dpc_tasklet;
- spinlock_t indexed_regs_lock;
- unsigned long csr_start;
- unsigned long doorbell_region;
- unsigned long doorbell_start;
- unsigned long mac_tx_errors;
- unsigned long mac_pause_frames_sent;
- unsigned long mac_pause_frames_received;
- unsigned long mac_rx_errors;
- unsigned long mac_rx_crc_errors;
- unsigned long mac_rx_symbol_err_frames;
- unsigned long mac_rx_jabber_frames;
- unsigned long mac_rx_oversized_frames;
- unsigned long mac_rx_short_frames;
- unsigned long port_rx_discards;
- unsigned long port_tx_discards;
- unsigned int mac_index;
- unsigned int nes_stack_start;
-
- /* Control Structures */
- void *cqp_vbase;
- dma_addr_t cqp_pbase;
- u32 cqp_mem_size;
- u8 ceq_index;
- u8 nic_ceq_index;
- struct nes_hw_cqp cqp;
- struct nes_hw_cq ccq;
- struct list_head cqp_avail_reqs;
- struct list_head cqp_pending_reqs;
- struct nes_cqp_request *nes_cqp_requests;
-
- u32 int_req;
- u32 int_stat;
- u32 timer_int_req;
- u32 timer_only_int_count;
- u32 intf_int_req;
- u32 last_mac_tx_pauses;
- u32 last_used_chunks_tx;
- struct list_head list;
-
- u16 base_doorbell_index;
- u16 currcq_count;
- u16 deepcq_count;
- u8 iw_status;
- u8 msi_enabled;
- u8 netdev_count;
- u8 napi_isr_ran;
- u8 disable_rx_flow_control;
- u8 disable_tx_flow_control;
-
- struct delayed_work work;
- u8 link_recheck;
-};
-
-/* Receive skb private area - must fit in skb->cb area */
-struct nes_rskb_cb {
- u64 busaddr;
- u32 maplen;
- u32 seqnum;
- u8 *data_start;
- struct nes_qp *nesqp;
-};
-
-static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
-{
- u32 crc_value;
- crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad));
-
- /*
- * With commit ef19454b ("[LIB] crc32c: Keep intermediate crc
- * state in cpu order"), behavior of crc32c changes on
- * big-endian platforms. Our algorithm expects the previous
- * behavior; otherwise we have RDMA connection establishment
- * issue on big-endian.
- */
- return cpu_to_le32(crc_value);
-}
-
-static inline void
-set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value)
-{
- wqe_words[index] = cpu_to_le32((u32) value);
- wqe_words[index + 1] = cpu_to_le32(upper_32_bits(value));
-}
-
-static inline void
-set_wqe_32bit_value(__le32 *wqe_words, u32 index, u32 value)
-{
- wqe_words[index] = cpu_to_le32(value);
-}
-
-static inline void
-nes_fill_init_cqp_wqe(struct nes_hw_cqp_wqe *cqp_wqe, struct nes_device *nesdev)
-{
- cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_LOW_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_LEN_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_LOW_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_LOW_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_HIGH_IDX] = 0;
-}
-
-static inline void
-nes_fill_init_qp_wqe(struct nes_hw_qp_wqe *wqe, struct nes_qp *nesqp, u32 head)
-{
- u32 value;
- value = ((u32)((unsigned long) nesqp)) | head;
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX,
- (u32)(upper_32_bits((unsigned long)(nesqp))));
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, value);
-}
-
-/* Read from memory-mapped device */
-static inline u32 nes_read_indexed(struct nes_device *nesdev, u32 reg_index)
-{
- unsigned long flags;
- void __iomem *addr = nesdev->index_reg;
- u32 value;
-
- spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
-
- writel(reg_index, addr);
- value = readl((void __iomem *)addr + 4);
-
- spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
- return value;
-}
-
-static inline u32 nes_read32(const void __iomem *addr)
-{
- return readl(addr);
-}
-
-static inline u16 nes_read16(const void __iomem *addr)
-{
- return readw(addr);
-}
-
-static inline u8 nes_read8(const void __iomem *addr)
-{
- return readb(addr);
-}
-
-/* Write to memory-mapped device */
-static inline void nes_write_indexed(struct nes_device *nesdev, u32 reg_index, u32 val)
-{
- unsigned long flags;
- void __iomem *addr = nesdev->index_reg;
-
- spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
-
- writel(reg_index, addr);
- writel(val, (void __iomem *)addr + 4);
-
- spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
-}
-
-static inline void nes_write32(void __iomem *addr, u32 val)
-{
- writel(val, addr);
-}
-
-static inline void nes_write16(void __iomem *addr, u16 val)
-{
- writew(val, addr);
-}
-
-static inline void nes_write8(void __iomem *addr, u8 val)
-{
- writeb(val, addr);
-}
-
-enum nes_resource {
- NES_RESOURCE_MW = 1,
- NES_RESOURCE_FAST_MR,
- NES_RESOURCE_PHYS_MR,
- NES_RESOURCE_USER_MR,
- NES_RESOURCE_PD,
- NES_RESOURCE_QP,
- NES_RESOURCE_CQ,
- NES_RESOURCE_ARP
-};
-
-static inline int nes_alloc_resource(struct nes_adapter *nesadapter,
- unsigned long *resource_array, u32 max_resources,
- u32 *req_resource_num, u32 *next, enum nes_resource resource_type)
-{
- unsigned long flags;
- u32 resource_num;
-
- spin_lock_irqsave(&nesadapter->resource_lock, flags);
-
- resource_num = find_next_zero_bit(resource_array, max_resources, *next);
- if (resource_num >= max_resources) {
- resource_num = find_first_zero_bit(resource_array, max_resources);
- if (resource_num >= max_resources) {
- printk(KERN_ERR PFX "%s: No available resources [type=%u].\n", __func__, resource_type);
- spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
- return -EMFILE;
- }
- }
- set_bit(resource_num, resource_array);
- *next = resource_num+1;
- if (*next == max_resources) {
- *next = 0;
- }
- spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
- *req_resource_num = resource_num;
-
- return 0;
-}
-
-static inline int nes_is_resource_allocated(struct nes_adapter *nesadapter,
- unsigned long *resource_array, u32 resource_num)
-{
- unsigned long flags;
- int bit_is_set;
-
- spin_lock_irqsave(&nesadapter->resource_lock, flags);
-
- bit_is_set = test_bit(resource_num, resource_array);
- nes_debug(NES_DBG_HW, "resource_num %u is%s allocated.\n",
- resource_num, (bit_is_set ? "": " not"));
- spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
-
- return bit_is_set;
-}
-
-static inline void nes_free_resource(struct nes_adapter *nesadapter,
- unsigned long *resource_array, u32 resource_num)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nesadapter->resource_lock, flags);
- clear_bit(resource_num, resource_array);
- spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
-}
-
-static inline struct nes_vnic *to_nesvnic(struct ib_device *ibdev)
-{
- return container_of(ibdev, struct nes_ib_device, ibdev)->nesvnic;
-}
-
-static inline struct nes_pd *to_nespd(struct ib_pd *ibpd)
-{
- return container_of(ibpd, struct nes_pd, ibpd);
-}
-
-static inline struct nes_ucontext *to_nesucontext(struct ib_ucontext *ibucontext)
-{
- return container_of(ibucontext, struct nes_ucontext, ibucontext);
-}
-
-static inline struct nes_mr *to_nesmr(struct ib_mr *ibmr)
-{
- return container_of(ibmr, struct nes_mr, ibmr);
-}
-
-static inline struct nes_mr *to_nesmr_from_ibfmr(struct ib_fmr *ibfmr)
-{
- return container_of(ibfmr, struct nes_mr, ibfmr);
-}
-
-static inline struct nes_mr *to_nesmw(struct ib_mw *ibmw)
-{
- return container_of(ibmw, struct nes_mr, ibmw);
-}
-
-static inline struct nes_fmr *to_nesfmr(struct nes_mr *nesmr)
-{
- return container_of(nesmr, struct nes_fmr, nesmr);
-}
-
-static inline struct nes_cq *to_nescq(struct ib_cq *ibcq)
-{
- return container_of(ibcq, struct nes_cq, ibcq);
-}
-
-static inline struct nes_qp *to_nesqp(struct ib_qp *ibqp)
-{
- return container_of(ibqp, struct nes_qp, ibqp);
-}
-
-
-
-/* nes.c */
-void nes_add_ref(struct ib_qp *);
-void nes_rem_ref(struct ib_qp *);
-struct ib_qp *nes_get_qp(struct ib_device *, int);
-
-
-/* nes_hw.c */
-struct nes_adapter *nes_init_adapter(struct nes_device *, u8);
-void nes_nic_init_timer_defaults(struct nes_device *, u8);
-void nes_destroy_adapter(struct nes_adapter *);
-int nes_init_cqp(struct nes_device *);
-int nes_init_phy(struct nes_device *);
-int nes_init_nic_qp(struct nes_device *, struct net_device *);
-void nes_destroy_nic_qp(struct nes_vnic *);
-int nes_napi_isr(struct nes_device *);
-void nes_dpc(unsigned long);
-void nes_nic_ce_handler(struct nes_device *, struct nes_hw_nic_cq *);
-void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
-int nes_destroy_cqp(struct nes_device *);
-int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
-void nes_recheck_link_status(struct work_struct *work);
-void nes_terminate_timeout(struct timer_list *t);
-
-/* nes_nic.c */
-struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
-void nes_netdev_destroy(struct net_device *);
-int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
-
-/* nes_cm.c */
-void *nes_cm_create(struct net_device *);
-int nes_cm_recv(struct sk_buff *, struct net_device *);
-void nes_update_arp(unsigned char *, u32, u32, u16, u16);
-void nes_manage_arp_cache(struct net_device *, unsigned char *, u32, u32);
-void nes_sock_release(struct nes_qp *, unsigned long *);
-void flush_wqes(struct nes_device *nesdev, struct nes_qp *, u32, u32);
-int nes_manage_apbvt(struct nes_vnic *, u32, u32, u32);
-int nes_cm_disconn(struct nes_qp *);
-void nes_cm_disconn_worker(void *);
-
-/* nes_verbs.c */
-int nes_hw_modify_qp(struct nes_device *, struct nes_qp *, u32, u32, u32);
-int nes_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
-struct nes_ib_device *nes_init_ofa_device(struct net_device *);
-void nes_port_ibevent(struct nes_vnic *nesvnic);
-void nes_destroy_ofa_device(struct nes_ib_device *);
-int nes_register_ofa_device(struct nes_ib_device *);
-
-/* nes_util.c */
-int nes_read_eeprom_values(struct nes_device *, struct nes_adapter *);
-void nes_write_1G_phy_reg(struct nes_device *, u8, u8, u16);
-void nes_read_1G_phy_reg(struct nes_device *, u8, u8, u16 *);
-void nes_write_10G_phy_reg(struct nes_device *, u16, u8, u16, u16);
-void nes_read_10G_phy_reg(struct nes_device *, u8, u8, u16);
-struct nes_cqp_request *nes_get_cqp_request(struct nes_device *);
-void nes_free_cqp_request(struct nes_device *nesdev,
- struct nes_cqp_request *cqp_request);
-void nes_put_cqp_request(struct nes_device *nesdev,
- struct nes_cqp_request *cqp_request);
-void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *);
-int nes_arp_table(struct nes_device *, u32, u8 *, u32);
-void nes_mh_fix(struct timer_list *t);
-void nes_clc(struct timer_list *t);
-void nes_dump_mem(unsigned int, void *, int);
-u32 nes_crc32(u32, u32, u32, u32, u8 *, u32, u32, u32);
-
-#endif /* __NES_H */
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
deleted file mode 100644
index 62bf986eba67..000000000000
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ /dev/null
@@ -1,3992 +0,0 @@
-/*
- * Copyright (c) 2006 - 2014 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-
-#define TCPOPT_TIMESTAMP 8
-
-#include <linux/atomic.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/init.h>
-#include <linux/if_arp.h>
-#include <linux/if_vlan.h>
-#include <linux/notifier.h>
-#include <linux/net.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/etherdevice.h>
-#include <linux/netdevice.h>
-#include <linux/random.h>
-#include <linux/list.h>
-#include <linux/threads.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <net/arp.h>
-#include <net/neighbour.h>
-#include <net/route.h>
-#include <net/ip_fib.h>
-#include <net/secure_seq.h>
-#include <net/tcp.h>
-#include <linux/fcntl.h>
-
-#include "nes.h"
-
-u32 cm_packets_sent;
-u32 cm_packets_bounced;
-u32 cm_packets_dropped;
-u32 cm_packets_retrans;
-u32 cm_packets_created;
-u32 cm_packets_received;
-atomic_t cm_listens_created;
-atomic_t cm_listens_destroyed;
-u32 cm_backlog_drops;
-atomic_t cm_loopbacks;
-atomic_t cm_nodes_created;
-atomic_t cm_nodes_destroyed;
-atomic_t cm_accel_dropped_pkts;
-atomic_t cm_resets_recvd;
-
-static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
-static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
-static int mini_cm_del_listen(struct nes_cm_core *, struct nes_cm_listener *);
-static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *, struct nes_vnic *, u16, void *, struct nes_cm_info *);
-static int mini_cm_close(struct nes_cm_core *, struct nes_cm_node *);
-static int mini_cm_accept(struct nes_cm_core *, struct nes_cm_node *);
-static int mini_cm_reject(struct nes_cm_core *, struct nes_cm_node *);
-static int mini_cm_recv_pkt(struct nes_cm_core *, struct nes_vnic *, struct sk_buff *);
-static int mini_cm_dealloc_core(struct nes_cm_core *);
-static int mini_cm_get(struct nes_cm_core *);
-static int mini_cm_set(struct nes_cm_core *, u32, u32);
-
-static void form_cm_frame(struct sk_buff *, struct nes_cm_node *, void *, u32, void *, u32, u8);
-static int add_ref_cm_node(struct nes_cm_node *);
-static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *);
-
-static int nes_cm_disconn_true(struct nes_qp *);
-static int nes_cm_post_event(struct nes_cm_event *event);
-static int nes_disconnect(struct nes_qp *nesqp, int abrupt);
-static void nes_disconnect_worker(struct work_struct *work);
-
-static int send_mpa_request(struct nes_cm_node *, struct sk_buff *);
-static int send_mpa_reject(struct nes_cm_node *);
-static int send_syn(struct nes_cm_node *, u32, struct sk_buff *);
-static int send_reset(struct nes_cm_node *, struct sk_buff *);
-static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb);
-static int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb);
-static void process_packet(struct nes_cm_node *, struct sk_buff *, struct nes_cm_core *);
-
-static void active_open_err(struct nes_cm_node *, struct sk_buff *, int);
-static void passive_open_err(struct nes_cm_node *, struct sk_buff *, int);
-static void cleanup_retrans_entry(struct nes_cm_node *);
-static void handle_rcv_mpa(struct nes_cm_node *, struct sk_buff *);
-static void free_retrans_entry(struct nes_cm_node *cm_node);
-static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, struct sk_buff *skb, int optionsize, int passive);
-
-/* CM event handler functions */
-static void cm_event_connected(struct nes_cm_event *);
-static void cm_event_connect_error(struct nes_cm_event *);
-static void cm_event_reset(struct nes_cm_event *);
-static void cm_event_mpa_req(struct nes_cm_event *);
-static void cm_event_mpa_reject(struct nes_cm_event *);
-static void handle_recv_entry(struct nes_cm_node *cm_node, u32 rem_node);
-
-/* MPA build functions */
-static int cm_build_mpa_frame(struct nes_cm_node *, u8 **, u16 *, u8 *, u8);
-static void build_mpa_v2(struct nes_cm_node *, void *, u8);
-static void build_mpa_v1(struct nes_cm_node *, void *, u8);
-static void build_rdma0_msg(struct nes_cm_node *, struct nes_qp **);
-
-static void print_core(struct nes_cm_core *core);
-static void record_ird_ord(struct nes_cm_node *, u16, u16);
-
-/* External CM API Interface */
-/* instance of function pointers for client API */
-/* set address of this instance to cm_core->cm_ops at cm_core alloc */
-static const struct nes_cm_ops nes_cm_api = {
- .accelerated = mini_cm_accelerated,
- .listen = mini_cm_listen,
- .stop_listener = mini_cm_del_listen,
- .connect = mini_cm_connect,
- .close = mini_cm_close,
- .accept = mini_cm_accept,
- .reject = mini_cm_reject,
- .recv_pkt = mini_cm_recv_pkt,
- .destroy_cm_core = mini_cm_dealloc_core,
- .get = mini_cm_get,
- .set = mini_cm_set
-};
-
-static struct nes_cm_core *g_cm_core;
-
-atomic_t cm_connects;
-atomic_t cm_accepts;
-atomic_t cm_disconnects;
-atomic_t cm_closes;
-atomic_t cm_connecteds;
-atomic_t cm_connect_reqs;
-atomic_t cm_rejects;
-
-int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
-{
- return add_ref_cm_node(cm_node);
-}
-
-int nes_rem_ref_cm_node(struct nes_cm_node *cm_node)
-{
- return rem_ref_cm_node(cm_node->cm_core, cm_node);
-}
-/**
- * create_event
- */
-static struct nes_cm_event *create_event(struct nes_cm_node * cm_node,
- enum nes_cm_event_type type)
-{
- struct nes_cm_event *event;
-
- if (!cm_node->cm_id)
- return NULL;
-
- /* allocate an empty event */
- event = kzalloc(sizeof(*event), GFP_ATOMIC);
-
- if (!event)
- return NULL;
-
- event->type = type;
- event->cm_node = cm_node;
- event->cm_info.rem_addr = cm_node->rem_addr;
- event->cm_info.loc_addr = cm_node->loc_addr;
- event->cm_info.rem_port = cm_node->rem_port;
- event->cm_info.loc_port = cm_node->loc_port;
- event->cm_info.cm_id = cm_node->cm_id;
-
- nes_debug(NES_DBG_CM, "cm_node=%p Created event=%p, type=%u, "
- "dst_addr=%08x[%x], src_addr=%08x[%x]\n",
- cm_node, event, type, event->cm_info.loc_addr,
- event->cm_info.loc_port, event->cm_info.rem_addr,
- event->cm_info.rem_port);
-
- nes_cm_post_event(event);
- return event;
-}
-
-
-/**
- * send_mpa_request
- */
-static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- u8 start_addr = 0;
- u8 *start_ptr = &start_addr;
- u8 **start_buff = &start_ptr;
- u16 buff_len = 0;
-
- if (!skb) {
- nes_debug(NES_DBG_CM, "skb set to NULL\n");
- return -1;
- }
-
- /* send an MPA Request frame */
- cm_build_mpa_frame(cm_node, start_buff, &buff_len, NULL, MPA_KEY_REQUEST);
- form_cm_frame(skb, cm_node, NULL, 0, *start_buff, buff_len, SET_ACK);
-
- return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
-}
-
-
-
-static int send_mpa_reject(struct nes_cm_node *cm_node)
-{
- struct sk_buff *skb = NULL;
- u8 start_addr = 0;
- u8 *start_ptr = &start_addr;
- u8 **start_buff = &start_ptr;
- u16 buff_len = 0;
- struct ietf_mpa_v1 *mpa_frame;
-
- skb = dev_alloc_skb(MAX_CM_BUFFER);
- if (!skb) {
- nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
- return -ENOMEM;
- }
-
- /* send an MPA reject frame */
- cm_build_mpa_frame(cm_node, start_buff, &buff_len, NULL, MPA_KEY_REPLY);
- mpa_frame = (struct ietf_mpa_v1 *)*start_buff;
- mpa_frame->flags |= IETF_MPA_FLAGS_REJECT;
- form_cm_frame(skb, cm_node, NULL, 0, *start_buff, buff_len, SET_ACK | SET_FIN);
-
- cm_node->state = NES_CM_STATE_FIN_WAIT1;
- return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
-}
-
-
-/**
- * recv_mpa - process a received TCP pkt, we are expecting an
- * IETF MPA frame
- */
-static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type,
- u32 len)
-{
- struct ietf_mpa_v1 *mpa_frame;
- struct ietf_mpa_v2 *mpa_v2_frame;
- struct ietf_rtr_msg *rtr_msg;
- int mpa_hdr_len;
- int priv_data_len;
-
- *type = NES_MPA_REQUEST_ACCEPT;
-
- /* assume req frame is in tcp data payload */
- if (len < sizeof(struct ietf_mpa_v1)) {
- nes_debug(NES_DBG_CM, "The received ietf buffer was too small (%x)\n", len);
- return -EINVAL;
- }
-
- /* points to the beginning of the frame, which could be MPA V1 or V2 */
- mpa_frame = (struct ietf_mpa_v1 *)buffer;
- mpa_hdr_len = sizeof(struct ietf_mpa_v1);
- priv_data_len = ntohs(mpa_frame->priv_data_len);
-
- /* make sure mpa private data len is less than 512 bytes */
- if (priv_data_len > IETF_MAX_PRIV_DATA_LEN) {
- nes_debug(NES_DBG_CM, "The received Length of Private"
- " Data field exceeds 512 octets\n");
- return -EINVAL;
- }
- /*
- * make sure MPA receiver interoperate with the
- * received MPA version and MPA key information
- *
- */
- if (mpa_frame->rev != IETF_MPA_V1 && mpa_frame->rev != IETF_MPA_V2) {
- nes_debug(NES_DBG_CM, "The received mpa version"
- " is not supported\n");
- return -EINVAL;
- }
- /*
- * backwards compatibility only
- */
- if (mpa_frame->rev > cm_node->mpa_frame_rev) {
- nes_debug(NES_DBG_CM, "The received mpa version"
- " can not be interoperated\n");
- return -EINVAL;
- } else {
- cm_node->mpa_frame_rev = mpa_frame->rev;
- }
-
- if (cm_node->state != NES_CM_STATE_MPAREQ_SENT) {
- if (memcmp(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE)) {
- nes_debug(NES_DBG_CM, "Unexpected MPA Key received \n");
- return -EINVAL;
- }
- } else {
- if (memcmp(mpa_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE)) {
- nes_debug(NES_DBG_CM, "Unexpected MPA Key received \n");
- return -EINVAL;
- }
- }
-
- if (priv_data_len + mpa_hdr_len != len) {
- nes_debug(NES_DBG_CM, "The received ietf buffer was not right"
- " complete (%x + %x != %x)\n",
- priv_data_len, mpa_hdr_len, len);
- return -EINVAL;
- }
- /* make sure it does not exceed the max size */
- if (len > MAX_CM_BUFFER) {
- nes_debug(NES_DBG_CM, "The received ietf buffer was too large"
- " (%x + %x != %x)\n",
- priv_data_len, mpa_hdr_len, len);
- return -EINVAL;
- }
-
- cm_node->mpa_frame_size = priv_data_len;
-
- switch (mpa_frame->rev) {
- case IETF_MPA_V2: {
- u16 ird_size;
- u16 ord_size;
- u16 rtr_ctrl_ird;
- u16 rtr_ctrl_ord;
-
- mpa_v2_frame = (struct ietf_mpa_v2 *)buffer;
- mpa_hdr_len += IETF_RTR_MSG_SIZE;
- cm_node->mpa_frame_size -= IETF_RTR_MSG_SIZE;
- rtr_msg = &mpa_v2_frame->rtr_msg;
-
- /* parse rtr message */
- rtr_ctrl_ird = ntohs(rtr_msg->ctrl_ird);
- rtr_ctrl_ord = ntohs(rtr_msg->ctrl_ord);
- ird_size = rtr_ctrl_ird & IETF_NO_IRD_ORD;
- ord_size = rtr_ctrl_ord & IETF_NO_IRD_ORD;
-
- if (!(rtr_ctrl_ird & IETF_PEER_TO_PEER)) {
- /* send reset */
- return -EINVAL;
- }
- if (ird_size == IETF_NO_IRD_ORD || ord_size == IETF_NO_IRD_ORD)
- cm_node->mpav2_ird_ord = IETF_NO_IRD_ORD;
-
- if (cm_node->mpav2_ird_ord != IETF_NO_IRD_ORD) {
- /* responder */
- if (cm_node->state != NES_CM_STATE_MPAREQ_SENT) {
- /* we are still negotiating */
- if (ord_size > NES_MAX_IRD) {
- cm_node->ird_size = NES_MAX_IRD;
- } else {
- cm_node->ird_size = ord_size;
- if (ord_size == 0 &&
- (rtr_ctrl_ord & IETF_RDMA0_READ)) {
- cm_node->ird_size = 1;
- nes_debug(NES_DBG_CM,
- "%s: Remote peer doesn't support RDMA0_READ (ord=%u)\n",
- __func__, ord_size);
- }
- }
- if (ird_size > NES_MAX_ORD)
- cm_node->ord_size = NES_MAX_ORD;
- else
- cm_node->ord_size = ird_size;
- } else { /* initiator */
- if (ord_size > NES_MAX_IRD) {
- nes_debug(NES_DBG_CM,
- "%s: Unable to support the requested (ord =%u)\n",
- __func__, ord_size);
- return -EINVAL;
- }
- cm_node->ird_size = ord_size;
-
- if (ird_size > NES_MAX_ORD) {
- cm_node->ord_size = NES_MAX_ORD;
- } else {
- if (ird_size == 0 &&
- (rtr_ctrl_ord & IETF_RDMA0_READ)) {
- nes_debug(NES_DBG_CM,
- "%s: Remote peer doesn't support RDMA0_READ (ird=%u)\n",
- __func__, ird_size);
- return -EINVAL;
- } else {
- cm_node->ord_size = ird_size;
- }
- }
- }
- }
-
- if (rtr_ctrl_ord & IETF_RDMA0_READ) {
- cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
-
- } else if (rtr_ctrl_ord & IETF_RDMA0_WRITE) {
- cm_node->send_rdma0_op = SEND_RDMA_WRITE_ZERO;
- } else { /* Not supported RDMA0 operation */
- return -EINVAL;
- }
- break;
- }
- case IETF_MPA_V1:
- default:
- break;
- }
-
- /* copy entire MPA frame to our cm_node's frame */
- memcpy(cm_node->mpa_frame_buf, buffer + mpa_hdr_len, cm_node->mpa_frame_size);
-
- if (mpa_frame->flags & IETF_MPA_FLAGS_REJECT)
- *type = NES_MPA_REQUEST_REJECT;
- return 0;
-}
-
-
-/**
- * form_cm_frame - get a free packet and build empty frame Use
- * node info to build.
- */
-static void form_cm_frame(struct sk_buff *skb,
- struct nes_cm_node *cm_node, void *options, u32 optionsize,
- void *data, u32 datasize, u8 flags)
-{
- struct tcphdr *tcph;
- struct iphdr *iph;
- struct ethhdr *ethh;
- u8 *buf;
- u16 packetsize = sizeof(*iph);
-
- packetsize += sizeof(*tcph);
- packetsize += optionsize + datasize;
-
- skb_trim(skb, 0);
- memset(skb->data, 0x00, ETH_HLEN + sizeof(*iph) + sizeof(*tcph));
-
- buf = skb_put(skb, packetsize + ETH_HLEN);
-
- ethh = (struct ethhdr *)buf;
- buf += ETH_HLEN;
-
- iph = (struct iphdr *)buf;
- buf += sizeof(*iph);
- tcph = (struct tcphdr *)buf;
- skb_reset_mac_header(skb);
- skb_set_network_header(skb, ETH_HLEN);
- skb_set_transport_header(skb, ETH_HLEN + sizeof(*iph));
- buf += sizeof(*tcph);
-
- skb->ip_summed = CHECKSUM_PARTIAL;
- if (!(cm_node->netdev->features & NETIF_F_IP_CSUM))
- skb->ip_summed = CHECKSUM_NONE;
- skb->protocol = htons(0x800);
- skb->data_len = 0;
- skb->mac_len = ETH_HLEN;
-
- memcpy(ethh->h_dest, cm_node->rem_mac, ETH_ALEN);
- memcpy(ethh->h_source, cm_node->loc_mac, ETH_ALEN);
- ethh->h_proto = htons(0x0800);
-
- iph->version = IPVERSION;
- iph->ihl = 5; /* 5 * 4Byte words, IP headr len */
- iph->tos = 0;
- iph->tot_len = htons(packetsize);
- iph->id = htons(++cm_node->tcp_cntxt.loc_id);
-
- iph->frag_off = htons(0x4000);
- iph->ttl = 0x40;
- iph->protocol = 0x06; /* IPPROTO_TCP */
-
- iph->saddr = htonl(cm_node->loc_addr);
- iph->daddr = htonl(cm_node->rem_addr);
-
- tcph->source = htons(cm_node->loc_port);
- tcph->dest = htons(cm_node->rem_port);
- tcph->seq = htonl(cm_node->tcp_cntxt.loc_seq_num);
-
- if (flags & SET_ACK) {
- cm_node->tcp_cntxt.loc_ack_num = cm_node->tcp_cntxt.rcv_nxt;
- tcph->ack_seq = htonl(cm_node->tcp_cntxt.loc_ack_num);
- tcph->ack = 1;
- } else {
- tcph->ack_seq = 0;
- }
-
- if (flags & SET_SYN) {
- cm_node->tcp_cntxt.loc_seq_num++;
- tcph->syn = 1;
- } else {
- cm_node->tcp_cntxt.loc_seq_num += datasize;
- }
-
- if (flags & SET_FIN) {
- cm_node->tcp_cntxt.loc_seq_num++;
- tcph->fin = 1;
- }
-
- if (flags & SET_RST)
- tcph->rst = 1;
-
- tcph->doff = (u16)((sizeof(*tcph) + optionsize + 3) >> 2);
- tcph->window = htons(cm_node->tcp_cntxt.rcv_wnd);
- tcph->urg_ptr = 0;
- if (optionsize)
- memcpy(buf, options, optionsize);
- buf += optionsize;
- if (datasize)
- memcpy(buf, data, datasize);
-
- skb_shinfo(skb)->nr_frags = 0;
- cm_packets_created++;
-}
-
-/**
- * print_core - dump a cm core
- */
-static void print_core(struct nes_cm_core *core)
-{
- nes_debug(NES_DBG_CM, "---------------------------------------------\n");
- nes_debug(NES_DBG_CM, "CM Core -- (core = %p )\n", core);
- if (!core)
- return;
- nes_debug(NES_DBG_CM, "---------------------------------------------\n");
-
- nes_debug(NES_DBG_CM, "State : %u \n", core->state);
-
- nes_debug(NES_DBG_CM, "Listen Nodes : %u \n", atomic_read(&core->listen_node_cnt));
- nes_debug(NES_DBG_CM, "Active Nodes : %u \n", atomic_read(&core->node_cnt));
-
- nes_debug(NES_DBG_CM, "core : %p \n", core);
-
- nes_debug(NES_DBG_CM, "-------------- end core ---------------\n");
-}
-
-static void record_ird_ord(struct nes_cm_node *cm_node,
- u16 conn_ird, u16 conn_ord)
-{
- if (conn_ird > NES_MAX_IRD)
- conn_ird = NES_MAX_IRD;
-
- if (conn_ord > NES_MAX_ORD)
- conn_ord = NES_MAX_ORD;
-
- cm_node->ird_size = conn_ird;
- cm_node->ord_size = conn_ord;
-}
-
-/**
- * cm_build_mpa_frame - build a MPA V1 frame or MPA V2 frame
- */
-static int cm_build_mpa_frame(struct nes_cm_node *cm_node, u8 **start_buff,
- u16 *buff_len, u8 *pci_mem, u8 mpa_key)
-{
- int ret = 0;
-
- *start_buff = (pci_mem) ? pci_mem : &cm_node->mpa_frame_buf[0];
-
- switch (cm_node->mpa_frame_rev) {
- case IETF_MPA_V1:
- *start_buff = (u8 *)*start_buff + sizeof(struct ietf_rtr_msg);
- *buff_len = sizeof(struct ietf_mpa_v1) + cm_node->mpa_frame_size;
- build_mpa_v1(cm_node, *start_buff, mpa_key);
- break;
- case IETF_MPA_V2:
- *buff_len = sizeof(struct ietf_mpa_v2) + cm_node->mpa_frame_size;
- build_mpa_v2(cm_node, *start_buff, mpa_key);
- break;
- default:
- ret = -EINVAL;
- }
- return ret;
-}
-
-/**
- * build_mpa_v2 - build a MPA V2 frame
- */
-static void build_mpa_v2(struct nes_cm_node *cm_node,
- void *start_addr, u8 mpa_key)
-{
- struct ietf_mpa_v2 *mpa_frame = (struct ietf_mpa_v2 *)start_addr;
- struct ietf_rtr_msg *rtr_msg = &mpa_frame->rtr_msg;
- u16 ctrl_ird;
- u16 ctrl_ord;
-
- /* initialize the upper 5 bytes of the frame */
- build_mpa_v1(cm_node, start_addr, mpa_key);
- mpa_frame->flags |= IETF_MPA_V2_FLAG; /* set a bit to indicate MPA V2 */
- mpa_frame->priv_data_len += htons(IETF_RTR_MSG_SIZE);
-
- /* initialize RTR msg */
- if (cm_node->mpav2_ird_ord == IETF_NO_IRD_ORD) {
- ctrl_ird = IETF_NO_IRD_ORD;
- ctrl_ord = IETF_NO_IRD_ORD;
- } else {
- ctrl_ird = cm_node->ird_size & IETF_NO_IRD_ORD;
- ctrl_ord = cm_node->ord_size & IETF_NO_IRD_ORD;
- }
- ctrl_ird |= IETF_PEER_TO_PEER;
-
- switch (mpa_key) {
- case MPA_KEY_REQUEST:
- ctrl_ord |= IETF_RDMA0_WRITE;
- ctrl_ord |= IETF_RDMA0_READ;
- break;
- case MPA_KEY_REPLY:
- switch (cm_node->send_rdma0_op) {
- case SEND_RDMA_WRITE_ZERO:
- ctrl_ord |= IETF_RDMA0_WRITE;
- break;
- case SEND_RDMA_READ_ZERO:
- ctrl_ord |= IETF_RDMA0_READ;
- break;
- }
- }
- rtr_msg->ctrl_ird = htons(ctrl_ird);
- rtr_msg->ctrl_ord = htons(ctrl_ord);
-}
-
-/**
- * build_mpa_v1 - build a MPA V1 frame
- */
-static void build_mpa_v1(struct nes_cm_node *cm_node, void *start_addr, u8 mpa_key)
-{
- struct ietf_mpa_v1 *mpa_frame = (struct ietf_mpa_v1 *)start_addr;
-
- switch (mpa_key) {
- case MPA_KEY_REQUEST:
- memcpy(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE);
- break;
- case MPA_KEY_REPLY:
- memcpy(mpa_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE);
- break;
- }
- mpa_frame->flags = IETF_MPA_FLAGS_CRC;
- mpa_frame->rev = cm_node->mpa_frame_rev;
- mpa_frame->priv_data_len = htons(cm_node->mpa_frame_size);
-}
-
-static void build_rdma0_msg(struct nes_cm_node *cm_node, struct nes_qp **nesqp_addr)
-{
- u64 u64temp;
- struct nes_qp *nesqp = *nesqp_addr;
- struct nes_hw_qp_wqe *wqe = &nesqp->hwqp.sq_vbase[0];
-
- u64temp = (unsigned long)nesqp->nesuqp_addr;
- u64temp |= NES_SW_CONTEXT_ALIGN >> 1;
- set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, u64temp);
-
- wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0;
- wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0;
-
- switch (cm_node->send_rdma0_op) {
- case SEND_RDMA_WRITE_ZERO:
- nes_debug(NES_DBG_CM, "Sending first write.\n");
- wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
- cpu_to_le32(NES_IWARP_SQ_OP_RDMAW);
- wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0;
- wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0;
- wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
- break;
-
- case SEND_RDMA_READ_ZERO:
- default:
- if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO)
- WARN(1, "Unsupported RDMA0 len operation=%u\n",
- cm_node->send_rdma0_op);
- nes_debug(NES_DBG_CM, "Sending first rdma operation.\n");
- wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
- cpu_to_le32(NES_IWARP_SQ_OP_RDMAR);
- wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX] = 1;
- wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX] = 0;
- wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = 0;
- wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_STAG_IDX] = 1;
- wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 1;
- break;
- }
-
- if (nesqp->sq_kmapped) {
- nesqp->sq_kmapped = 0;
- kunmap(nesqp->page);
- }
-
- /*use the reserved spot on the WQ for the extra first WQE*/
- nesqp->nesqp_context->ird_ord_sizes &= cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
- NES_QPCONTEXT_ORDIRD_WRPDU |
- NES_QPCONTEXT_ORDIRD_ALSMM));
- nesqp->skip_lsmm = 1;
- nesqp->hwqp.sq_tail = 0;
-}
-
-/**
- * schedule_nes_timer
- * note - cm_node needs to be protected before calling this. Encase in:
- * rem_ref_cm_node(cm_core, cm_node);add_ref_cm_node(cm_node);
- */
-int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
- enum nes_timer_type type, int send_retrans,
- int close_when_complete)
-{
- unsigned long flags;
- struct nes_cm_core *cm_core = cm_node->cm_core;
- struct nes_timer_entry *new_send;
- int ret = 0;
-
- new_send = kzalloc(sizeof(*new_send), GFP_ATOMIC);
- if (!new_send)
- return -ENOMEM;
-
- /* new_send->timetosend = currenttime */
- new_send->retrycount = NES_DEFAULT_RETRYS;
- new_send->retranscount = NES_DEFAULT_RETRANS;
- new_send->skb = skb;
- new_send->timetosend = jiffies;
- new_send->type = type;
- new_send->netdev = cm_node->netdev;
- new_send->send_retrans = send_retrans;
- new_send->close_when_complete = close_when_complete;
-
- if (type == NES_TIMER_TYPE_CLOSE) {
- new_send->timetosend += (HZ / 10);
- if (cm_node->recv_entry) {
- kfree(new_send);
- WARN_ON(1);
- return -EINVAL;
- }
- cm_node->recv_entry = new_send;
- }
-
- if (type == NES_TIMER_TYPE_SEND) {
- new_send->seq_num = ntohl(tcp_hdr(skb)->seq);
- refcount_inc(&new_send->skb->users);
- spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
- cm_node->send_entry = new_send;
- add_ref_cm_node(cm_node);
- spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
- new_send->timetosend = jiffies + NES_RETRY_TIMEOUT;
-
- ret = nes_nic_cm_xmit(new_send->skb, cm_node->netdev);
- if (ret != NETDEV_TX_OK) {
- nes_debug(NES_DBG_CM, "Error sending packet %p "
- "(jiffies = %lu)\n", new_send, jiffies);
- new_send->timetosend = jiffies;
- ret = NETDEV_TX_OK;
- } else {
- cm_packets_sent++;
- if (!send_retrans) {
- cleanup_retrans_entry(cm_node);
- if (close_when_complete)
- rem_ref_cm_node(cm_core, cm_node);
- return ret;
- }
- }
- }
-
- if (!timer_pending(&cm_core->tcp_timer))
- mod_timer(&cm_core->tcp_timer, new_send->timetosend);
-
- return ret;
-}
-
-static void nes_retrans_expired(struct nes_cm_node *cm_node)
-{
- struct iw_cm_id *cm_id = cm_node->cm_id;
- enum nes_cm_node_state state = cm_node->state;
- cm_node->state = NES_CM_STATE_CLOSED;
-
- switch (state) {
- case NES_CM_STATE_SYN_RCVD:
- case NES_CM_STATE_CLOSING:
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- break;
- case NES_CM_STATE_LAST_ACK:
- case NES_CM_STATE_FIN_WAIT1:
- if (cm_node->cm_id)
- cm_id->rem_ref(cm_id);
- send_reset(cm_node, NULL);
- break;
- default:
- add_ref_cm_node(cm_node);
- send_reset(cm_node, NULL);
- create_event(cm_node, NES_CM_EVENT_ABORTED);
- }
-}
-
-static void handle_recv_entry(struct nes_cm_node *cm_node, u32 rem_node)
-{
- struct nes_timer_entry *recv_entry = cm_node->recv_entry;
- struct iw_cm_id *cm_id = cm_node->cm_id;
- struct nes_qp *nesqp;
- unsigned long qplockflags;
-
- if (!recv_entry)
- return;
- nesqp = (struct nes_qp *)recv_entry->skb;
- if (nesqp) {
- spin_lock_irqsave(&nesqp->lock, qplockflags);
- if (nesqp->cm_id) {
- nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, "
- "refcount = %d: HIT A "
- "NES_TIMER_TYPE_CLOSE with something "
- "to do!!!\n", nesqp->hwqp.qp_id, cm_id,
- atomic_read(&nesqp->refcount));
- nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED;
- nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT;
- nesqp->ibqp_state = IB_QPS_ERR;
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- nes_cm_disconn(nesqp);
- } else {
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, "
- "refcount = %d: HIT A "
- "NES_TIMER_TYPE_CLOSE with nothing "
- "to do!!!\n", nesqp->hwqp.qp_id, cm_id,
- atomic_read(&nesqp->refcount));
- }
- } else if (rem_node) {
- /* TIME_WAIT state */
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- }
- if (cm_node->cm_id)
- cm_id->rem_ref(cm_id);
- kfree(recv_entry);
- cm_node->recv_entry = NULL;
-}
-
-/**
- * nes_cm_timer_tick
- */
-static void nes_cm_timer_tick(struct timer_list *unused)
-{
- unsigned long flags;
- unsigned long nexttimeout = jiffies + NES_LONG_TIME;
- struct nes_cm_node *cm_node;
- struct nes_timer_entry *send_entry, *recv_entry;
- struct list_head *list_core_temp;
- struct list_head *list_node;
- struct nes_cm_core *cm_core = g_cm_core;
- u32 settimer = 0;
- unsigned long timetosend;
- int ret = NETDEV_TX_OK;
-
- struct list_head timer_list;
-
- INIT_LIST_HEAD(&timer_list);
- spin_lock_irqsave(&cm_core->ht_lock, flags);
-
- list_for_each_safe(list_node, list_core_temp,
- &cm_core->connected_nodes) {
- cm_node = container_of(list_node, struct nes_cm_node, list);
- if ((cm_node->recv_entry) || (cm_node->send_entry)) {
- add_ref_cm_node(cm_node);
- list_add(&cm_node->timer_entry, &timer_list);
- }
- }
- spin_unlock_irqrestore(&cm_core->ht_lock, flags);
-
- list_for_each_safe(list_node, list_core_temp, &timer_list) {
- cm_node = container_of(list_node, struct nes_cm_node,
- timer_entry);
- recv_entry = cm_node->recv_entry;
-
- if (recv_entry) {
- if (time_after(recv_entry->timetosend, jiffies)) {
- if (nexttimeout > recv_entry->timetosend ||
- !settimer) {
- nexttimeout = recv_entry->timetosend;
- settimer = 1;
- }
- } else {
- handle_recv_entry(cm_node, 1);
- }
- }
-
- spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
- do {
- send_entry = cm_node->send_entry;
- if (!send_entry)
- break;
- if (time_after(send_entry->timetosend, jiffies)) {
- if (cm_node->state != NES_CM_STATE_TSA) {
- if ((nexttimeout >
- send_entry->timetosend) ||
- !settimer) {
- nexttimeout =
- send_entry->timetosend;
- settimer = 1;
- }
- } else {
- free_retrans_entry(cm_node);
- }
- break;
- }
-
- if ((cm_node->state == NES_CM_STATE_TSA) ||
- (cm_node->state == NES_CM_STATE_CLOSED)) {
- free_retrans_entry(cm_node);
- break;
- }
-
- if (!send_entry->retranscount ||
- !send_entry->retrycount) {
- cm_packets_dropped++;
- free_retrans_entry(cm_node);
-
- spin_unlock_irqrestore(
- &cm_node->retrans_list_lock, flags);
- nes_retrans_expired(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- spin_lock_irqsave(&cm_node->retrans_list_lock,
- flags);
- break;
- }
- refcount_inc(&send_entry->skb->users);
- cm_packets_retrans++;
- nes_debug(NES_DBG_CM, "Retransmitting send_entry %p "
- "for node %p, jiffies = %lu, time to send = "
- "%lu, retranscount = %u, send_entry->seq_num = "
- "0x%08X, cm_node->tcp_cntxt.rem_ack_num = "
- "0x%08X\n", send_entry, cm_node, jiffies,
- send_entry->timetosend,
- send_entry->retranscount,
- send_entry->seq_num,
- cm_node->tcp_cntxt.rem_ack_num);
-
- spin_unlock_irqrestore(&cm_node->retrans_list_lock,
- flags);
- ret = nes_nic_cm_xmit(send_entry->skb, cm_node->netdev);
- spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
- if (ret != NETDEV_TX_OK) {
- nes_debug(NES_DBG_CM, "rexmit failed for "
- "node=%p\n", cm_node);
- cm_packets_bounced++;
- send_entry->retrycount--;
- nexttimeout = jiffies + NES_SHORT_TIME;
- settimer = 1;
- break;
- } else {
- cm_packets_sent++;
- }
- nes_debug(NES_DBG_CM, "Packet Sent: retrans count = "
- "%u, retry count = %u.\n",
- send_entry->retranscount,
- send_entry->retrycount);
- if (send_entry->send_retrans) {
- send_entry->retranscount--;
- timetosend = (NES_RETRY_TIMEOUT <<
- (NES_DEFAULT_RETRANS - send_entry->retranscount));
-
- send_entry->timetosend = jiffies +
- min(timetosend, NES_MAX_TIMEOUT);
- if (nexttimeout > send_entry->timetosend ||
- !settimer) {
- nexttimeout = send_entry->timetosend;
- settimer = 1;
- }
- } else {
- int close_when_complete;
- close_when_complete =
- send_entry->close_when_complete;
- nes_debug(NES_DBG_CM, "cm_node=%p state=%d\n",
- cm_node, cm_node->state);
- free_retrans_entry(cm_node);
- if (close_when_complete)
- rem_ref_cm_node(cm_node->cm_core,
- cm_node);
- }
- } while (0);
-
- spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- }
-
- if (settimer) {
- if (!timer_pending(&cm_core->tcp_timer))
- mod_timer(&cm_core->tcp_timer, nexttimeout);
- }
-}
-
-
-/**
- * send_syn
- */
-static int send_syn(struct nes_cm_node *cm_node, u32 sendack,
- struct sk_buff *skb)
-{
- int ret;
- int flags = SET_SYN;
- char optionsbuffer[sizeof(struct option_mss) +
- sizeof(struct option_windowscale) + sizeof(struct option_base) +
- TCP_OPTIONS_PADDING];
-
- int optionssize = 0;
- /* Sending MSS option */
- union all_known_options *options;
-
- if (!cm_node)
- return -EINVAL;
-
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_mss.optionnum = OPTION_NUMBER_MSS;
- options->as_mss.length = sizeof(struct option_mss);
- options->as_mss.mss = htons(cm_node->tcp_cntxt.mss);
- optionssize += sizeof(struct option_mss);
-
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_windowscale.optionnum = OPTION_NUMBER_WINDOW_SCALE;
- options->as_windowscale.length = sizeof(struct option_windowscale);
- options->as_windowscale.shiftcount = cm_node->tcp_cntxt.rcv_wscale;
- optionssize += sizeof(struct option_windowscale);
-
- if (sendack && !(NES_DRV_OPT_SUPRESS_OPTION_BC & nes_drv_opt)) {
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_base.optionnum = OPTION_NUMBER_WRITE0;
- options->as_base.length = sizeof(struct option_base);
- optionssize += sizeof(struct option_base);
- /* we need the size to be a multiple of 4 */
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_end = 1;
- optionssize += 1;
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_end = 1;
- optionssize += 1;
- }
-
- options = (union all_known_options *)&optionsbuffer[optionssize];
- options->as_end = OPTION_NUMBER_END;
- optionssize += 1;
-
- if (!skb)
- skb = dev_alloc_skb(MAX_CM_BUFFER);
- if (!skb) {
- nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
- return -1;
- }
-
- if (sendack)
- flags |= SET_ACK;
-
- form_cm_frame(skb, cm_node, optionsbuffer, optionssize, NULL, 0, flags);
- ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
-
- return ret;
-}
-
-
-/**
- * send_reset
- */
-static int send_reset(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- int ret;
- int flags = SET_RST | SET_ACK;
-
- if (!skb)
- skb = dev_alloc_skb(MAX_CM_BUFFER);
- if (!skb) {
- nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
- return -ENOMEM;
- }
-
- form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, flags);
- ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 0, 1);
-
- return ret;
-}
-
-
-/**
- * send_ack
- */
-static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- int ret;
-
- if (!skb)
- skb = dev_alloc_skb(MAX_CM_BUFFER);
-
- if (!skb) {
- nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
- return -1;
- }
-
- form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, SET_ACK);
- ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 0, 0);
-
- return ret;
-}
-
-
-/**
- * send_fin
- */
-static int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- int ret;
-
- /* if we didn't get a frame get one */
- if (!skb)
- skb = dev_alloc_skb(MAX_CM_BUFFER);
-
- if (!skb) {
- nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
- return -1;
- }
-
- form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, SET_ACK | SET_FIN);
- ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
-
- return ret;
-}
-
-
-/**
- * find_node - find a cm node that matches the reference cm node
- */
-static struct nes_cm_node *find_node(struct nes_cm_core *cm_core,
- u16 rem_port, nes_addr_t rem_addr, u16 loc_port, nes_addr_t loc_addr)
-{
- unsigned long flags;
- struct list_head *hte;
- struct nes_cm_node *cm_node;
-
- /* get a handle on the hte */
- hte = &cm_core->connected_nodes;
-
- /* walk list and find cm_node associated with this session ID */
- spin_lock_irqsave(&cm_core->ht_lock, flags);
- list_for_each_entry(cm_node, hte, list) {
- /* compare quad, return node handle if a match */
- nes_debug(NES_DBG_CM, "finding node %x:%x =? %x:%x ^ %x:%x =? %x:%x\n",
- cm_node->loc_addr, cm_node->loc_port,
- loc_addr, loc_port,
- cm_node->rem_addr, cm_node->rem_port,
- rem_addr, rem_port);
- if ((cm_node->loc_addr == loc_addr) &&
- (cm_node->loc_port == loc_port) &&
- (cm_node->rem_addr == rem_addr) &&
- (cm_node->rem_port == rem_port)) {
- add_ref_cm_node(cm_node);
- spin_unlock_irqrestore(&cm_core->ht_lock, flags);
- return cm_node;
- }
- }
- spin_unlock_irqrestore(&cm_core->ht_lock, flags);
-
- /* no owner node */
- return NULL;
-}
-
-
-/**
- * find_listener - find a cm node listening on this addr-port pair
- */
-static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core,
- nes_addr_t dst_addr, u16 dst_port,
- enum nes_cm_listener_state listener_state)
-{
- unsigned long flags;
- struct nes_cm_listener *listen_node;
- nes_addr_t listen_addr;
- u16 listen_port;
-
- /* walk list and find cm_node associated with this session ID */
- spin_lock_irqsave(&cm_core->listen_list_lock, flags);
- list_for_each_entry(listen_node, &cm_core->listen_list.list, list) {
- listen_addr = listen_node->loc_addr;
- listen_port = listen_node->loc_port;
-
- /* compare node pair, return node handle if a match */
- if (((listen_addr == dst_addr) ||
- listen_addr == 0x00000000) &&
- (listen_port == dst_port) &&
- (listener_state & listen_node->listener_state)) {
- atomic_inc(&listen_node->ref_count);
- spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
- return listen_node;
- }
- }
- spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
-
- /* no listener */
- return NULL;
-}
-
-/**
- * add_hte_node - add a cm node to the hash table
- */
-static int add_hte_node(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
-{
- unsigned long flags;
- struct list_head *hte;
-
- if (!cm_node || !cm_core)
- return -EINVAL;
-
- nes_debug(NES_DBG_CM, "Adding Node %p to Active Connection HT\n",
- cm_node);
-
- spin_lock_irqsave(&cm_core->ht_lock, flags);
-
- /* get a handle on the hash table element (list head for this slot) */
- hte = &cm_core->connected_nodes;
- list_add_tail(&cm_node->list, hte);
- atomic_inc(&cm_core->ht_node_cnt);
-
- spin_unlock_irqrestore(&cm_core->ht_lock, flags);
-
- return 0;
-}
-
-
-/**
- * mini_cm_dec_refcnt_listen
- */
-static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
- struct nes_cm_listener *listener, int free_hanging_nodes)
-{
- int ret = -EINVAL;
- int err = 0;
- unsigned long flags;
- struct list_head *list_pos = NULL;
- struct list_head *list_temp = NULL;
- struct nes_cm_node *cm_node = NULL;
- struct list_head reset_list;
-
- nes_debug(NES_DBG_CM, "attempting listener= %p free_nodes= %d, "
- "refcnt=%d\n", listener, free_hanging_nodes,
- atomic_read(&listener->ref_count));
- /* free non-accelerated child nodes for this listener */
- INIT_LIST_HEAD(&reset_list);
- if (free_hanging_nodes) {
- spin_lock_irqsave(&cm_core->ht_lock, flags);
- list_for_each_safe(list_pos, list_temp,
- &g_cm_core->connected_nodes) {
- cm_node = container_of(list_pos, struct nes_cm_node,
- list);
- if ((cm_node->listener == listener) &&
- (!cm_node->accelerated)) {
- add_ref_cm_node(cm_node);
- list_add(&cm_node->reset_entry, &reset_list);
- }
- }
- spin_unlock_irqrestore(&cm_core->ht_lock, flags);
- }
-
- list_for_each_safe(list_pos, list_temp, &reset_list) {
- cm_node = container_of(list_pos, struct nes_cm_node,
- reset_entry);
- {
- struct nes_cm_node *loopback = cm_node->loopbackpartner;
- enum nes_cm_node_state old_state;
- if (NES_CM_STATE_FIN_WAIT1 <= cm_node->state) {
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- } else {
- if (!loopback) {
- cleanup_retrans_entry(cm_node);
- err = send_reset(cm_node, NULL);
- if (err) {
- cm_node->state =
- NES_CM_STATE_CLOSED;
- WARN_ON(1);
- } else {
- old_state = cm_node->state;
- cm_node->state = NES_CM_STATE_LISTENER_DESTROYED;
- if (old_state != NES_CM_STATE_MPAREQ_RCVD)
- rem_ref_cm_node(
- cm_node->cm_core,
- cm_node);
- }
- } else {
- struct nes_cm_event event;
-
- event.cm_node = loopback;
- event.cm_info.rem_addr =
- loopback->rem_addr;
- event.cm_info.loc_addr =
- loopback->loc_addr;
- event.cm_info.rem_port =
- loopback->rem_port;
- event.cm_info.loc_port =
- loopback->loc_port;
- event.cm_info.cm_id = loopback->cm_id;
- add_ref_cm_node(loopback);
- loopback->state = NES_CM_STATE_CLOSED;
- cm_event_connect_error(&event);
- cm_node->state = NES_CM_STATE_LISTENER_DESTROYED;
-
- rem_ref_cm_node(cm_node->cm_core,
- cm_node);
-
- }
- }
- }
- }
-
- spin_lock_irqsave(&cm_core->listen_list_lock, flags);
- if (!atomic_dec_return(&listener->ref_count)) {
- list_del(&listener->list);
-
- /* decrement our listen node count */
- atomic_dec(&cm_core->listen_node_cnt);
-
- spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
-
- if (listener->nesvnic) {
- nes_manage_apbvt(listener->nesvnic,
- listener->loc_port,
- PCI_FUNC(listener->nesvnic->nesdev->pcidev->devfn),
- NES_MANAGE_APBVT_DEL);
-
- nes_debug(NES_DBG_NLMSG,
- "Delete APBVT loc_port = %04X\n",
- listener->loc_port);
- }
-
- nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
-
- kfree(listener);
- listener = NULL;
- ret = 0;
- atomic_inc(&cm_listens_destroyed);
- } else {
- spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
- }
- if (listener) {
- if (atomic_read(&listener->pend_accepts_cnt) > 0)
- nes_debug(NES_DBG_CM, "destroying listener (%p)"
- " with non-zero pending accepts=%u\n",
- listener, atomic_read(&listener->pend_accepts_cnt));
- }
-
- return ret;
-}
-
-
-/**
- * mini_cm_del_listen
- */
-static int mini_cm_del_listen(struct nes_cm_core *cm_core,
- struct nes_cm_listener *listener)
-{
- listener->listener_state = NES_CM_LISTENER_PASSIVE_STATE;
- listener->cm_id = NULL; /* going to be destroyed pretty soon */
- return mini_cm_dec_refcnt_listen(cm_core, listener, 1);
-}
-
-
-/**
- * mini_cm_accelerated
- */
-static inline int mini_cm_accelerated(struct nes_cm_core *cm_core,
- struct nes_cm_node *cm_node)
-{
- cm_node->accelerated = true;
-
- if (cm_node->accept_pend) {
- BUG_ON(!cm_node->listener);
- atomic_dec(&cm_node->listener->pend_accepts_cnt);
- cm_node->accept_pend = 0;
- BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
- }
-
- if (!timer_pending(&cm_core->tcp_timer))
- mod_timer(&cm_core->tcp_timer, (jiffies + NES_SHORT_TIME));
-
- return 0;
-}
-
-
-/**
- * nes_addr_resolve_neigh
- */
-static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpindex)
-{
- struct rtable *rt;
- struct neighbour *neigh;
- int rc = arpindex;
- struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
- __be32 dst_ipaddr = htonl(dst_ip);
-
- rt = ip_route_output(&init_net, dst_ipaddr, nesvnic->local_ipaddr, 0, 0);
- if (IS_ERR(rt)) {
- printk(KERN_ERR "%s: ip_route_output_key failed for 0x%08X\n",
- __func__, dst_ip);
- return rc;
- }
-
- neigh = dst_neigh_lookup(&rt->dst, &dst_ipaddr);
-
- rcu_read_lock();
- if (neigh) {
- if (neigh->nud_state & NUD_VALID) {
- nes_debug(NES_DBG_CM, "Neighbor MAC address for 0x%08X"
- " is %pM, Gateway is 0x%08X \n", dst_ip,
- neigh->ha, ntohl(rt->rt_gw4));
-
- if (arpindex >= 0) {
- if (ether_addr_equal(nesadapter->arp_table[arpindex].mac_addr, neigh->ha)) {
- /* Mac address same as in nes_arp_table */
- goto out;
- }
-
- nes_manage_arp_cache(nesvnic->netdev,
- nesadapter->arp_table[arpindex].mac_addr,
- dst_ip, NES_ARP_DELETE);
- }
-
- nes_manage_arp_cache(nesvnic->netdev, neigh->ha,
- dst_ip, NES_ARP_ADD);
- rc = nes_arp_table(nesvnic->nesdev, dst_ip, NULL,
- NES_ARP_RESOLVE);
- } else {
- neigh_event_send(neigh, NULL);
- }
- }
-out:
- rcu_read_unlock();
-
- if (neigh)
- neigh_release(neigh);
-
- ip_rt_put(rt);
- return rc;
-}
-
-/**
- * make_cm_node - create a new instance of a cm node
- */
-static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
- struct nes_vnic *nesvnic, struct nes_cm_info *cm_info,
- struct nes_cm_listener *listener)
-{
- struct nes_cm_node *cm_node;
- int oldarpindex = 0;
- int arpindex = 0;
- struct nes_device *nesdev;
- struct nes_adapter *nesadapter;
-
- /* create an hte and cm_node for this instance */
- cm_node = kzalloc(sizeof(*cm_node), GFP_ATOMIC);
- if (!cm_node)
- return NULL;
-
- /* set our node specific transport info */
- if (listener) {
- cm_node->loc_addr = listener->loc_addr;
- cm_node->loc_port = listener->loc_port;
- } else {
- cm_node->loc_addr = cm_info->loc_addr;
- cm_node->loc_port = cm_info->loc_port;
- }
- cm_node->rem_addr = cm_info->rem_addr;
- cm_node->rem_port = cm_info->rem_port;
-
- cm_node->mpa_frame_rev = mpa_version;
- cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
- cm_node->mpav2_ird_ord = 0;
- cm_node->ird_size = 0;
- cm_node->ord_size = 0;
-
- nes_debug(NES_DBG_CM, "Make node addresses : loc = %pI4:%x, rem = %pI4:%x\n",
- &cm_node->loc_addr, cm_node->loc_port,
- &cm_node->rem_addr, cm_node->rem_port);
- cm_node->listener = listener;
- if (listener)
- cm_node->tos = listener->tos;
- cm_node->netdev = nesvnic->netdev;
- cm_node->cm_id = cm_info->cm_id;
- memcpy(cm_node->loc_mac, nesvnic->netdev->dev_addr, ETH_ALEN);
-
- nes_debug(NES_DBG_CM, "listener=%p, cm_id=%p\n", cm_node->listener,
- cm_node->cm_id);
-
- spin_lock_init(&cm_node->retrans_list_lock);
-
- cm_node->loopbackpartner = NULL;
- atomic_set(&cm_node->ref_count, 1);
- /* associate our parent CM core */
- cm_node->cm_core = cm_core;
- cm_node->tcp_cntxt.loc_id = NES_CM_DEF_LOCAL_ID;
- cm_node->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE;
- cm_node->tcp_cntxt.rcv_wnd = NES_CM_DEFAULT_RCV_WND_SCALED >>
- NES_CM_DEFAULT_RCV_WND_SCALE;
- cm_node->tcp_cntxt.loc_seq_num = secure_tcp_seq(htonl(cm_node->loc_addr),
- htonl(cm_node->rem_addr),
- htons(cm_node->loc_port),
- htons(cm_node->rem_port));
- cm_node->tcp_cntxt.mss = nesvnic->max_frame_size - sizeof(struct iphdr) -
- sizeof(struct tcphdr) - ETH_HLEN - VLAN_HLEN;
- cm_node->tcp_cntxt.rcv_nxt = 0;
- /* get a unique session ID , add thread_id to an upcounter to handle race */
- atomic_inc(&cm_core->node_cnt);
- cm_node->conn_type = cm_info->conn_type;
- cm_node->apbvt_set = 0;
- cm_node->accept_pend = 0;
-
- cm_node->nesvnic = nesvnic;
- /* get some device handles, for arp lookup */
- nesdev = nesvnic->nesdev;
- nesadapter = nesdev->nesadapter;
-
- cm_node->loopbackpartner = NULL;
-
- /* get the mac addr for the remote node */
- oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr,
- NULL, NES_ARP_RESOLVE);
- arpindex = nes_addr_resolve_neigh(nesvnic, cm_node->rem_addr,
- oldarpindex);
- if (arpindex < 0) {
- kfree(cm_node);
- return NULL;
- }
-
- /* copy the mac addr to node context */
- memcpy(cm_node->rem_mac, nesadapter->arp_table[arpindex].mac_addr, ETH_ALEN);
- nes_debug(NES_DBG_CM, "Remote mac addr from arp table: %pM\n",
- cm_node->rem_mac);
-
- add_hte_node(cm_core, cm_node);
- atomic_inc(&cm_nodes_created);
-
- return cm_node;
-}
-
-
-/**
- * add_ref_cm_node - destroy an instance of a cm node
- */
-static int add_ref_cm_node(struct nes_cm_node *cm_node)
-{
- atomic_inc(&cm_node->ref_count);
- return 0;
-}
-
-
-/**
- * rem_ref_cm_node - destroy an instance of a cm node
- */
-static int rem_ref_cm_node(struct nes_cm_core *cm_core,
- struct nes_cm_node *cm_node)
-{
- unsigned long flags;
- struct nes_qp *nesqp;
-
- if (!cm_node)
- return -EINVAL;
-
- spin_lock_irqsave(&cm_node->cm_core->ht_lock, flags);
- if (atomic_dec_return(&cm_node->ref_count)) {
- spin_unlock_irqrestore(&cm_node->cm_core->ht_lock, flags);
- return 0;
- }
- list_del(&cm_node->list);
- atomic_dec(&cm_core->ht_node_cnt);
- spin_unlock_irqrestore(&cm_node->cm_core->ht_lock, flags);
-
- /* if the node is destroyed before connection was accelerated */
- if (!cm_node->accelerated && cm_node->accept_pend) {
- BUG_ON(!cm_node->listener);
- atomic_dec(&cm_node->listener->pend_accepts_cnt);
- BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
- }
- WARN_ON(cm_node->send_entry);
- if (cm_node->recv_entry)
- handle_recv_entry(cm_node, 0);
- if (cm_node->listener) {
- mini_cm_dec_refcnt_listen(cm_core, cm_node->listener, 0);
- } else {
- if (cm_node->apbvt_set && cm_node->nesvnic) {
- nes_manage_apbvt(cm_node->nesvnic, cm_node->loc_port,
- PCI_FUNC(cm_node->nesvnic->nesdev->pcidev->devfn),
- NES_MANAGE_APBVT_DEL);
- }
- nes_debug(NES_DBG_NLMSG, "Delete APBVT loc_port = %04X\n",
- cm_node->loc_port);
- }
-
- atomic_dec(&cm_core->node_cnt);
- atomic_inc(&cm_nodes_destroyed);
- nesqp = cm_node->nesqp;
- if (nesqp) {
- nesqp->cm_node = NULL;
- nes_rem_ref(&nesqp->ibqp);
- cm_node->nesqp = NULL;
- }
-
- kfree(cm_node);
- return 0;
-}
-
-/**
- * process_options
- */
-static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
- u32 optionsize, u32 syn_packet)
-{
- u32 tmp;
- u32 offset = 0;
- union all_known_options *all_options;
- char got_mss_option = 0;
-
- while (offset < optionsize) {
- all_options = (union all_known_options *)(optionsloc + offset);
- switch (all_options->as_base.optionnum) {
- case OPTION_NUMBER_END:
- offset = optionsize;
- break;
- case OPTION_NUMBER_NONE:
- offset += 1;
- continue;
- case OPTION_NUMBER_MSS:
- nes_debug(NES_DBG_CM, "%s: MSS Length: %d Offset: %d "
- "Size: %d\n", __func__,
- all_options->as_mss.length, offset, optionsize);
- got_mss_option = 1;
- if (all_options->as_mss.length != 4) {
- return 1;
- } else {
- tmp = ntohs(all_options->as_mss.mss);
- if (tmp > 0 && tmp <
- cm_node->tcp_cntxt.mss)
- cm_node->tcp_cntxt.mss = tmp;
- }
- break;
- case OPTION_NUMBER_WINDOW_SCALE:
- cm_node->tcp_cntxt.snd_wscale =
- all_options->as_windowscale.shiftcount;
- break;
- default:
- nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n",
- all_options->as_base.optionnum);
- break;
- }
- offset += all_options->as_base.length;
- }
- if ((!got_mss_option) && (syn_packet))
- cm_node->tcp_cntxt.mss = NES_CM_DEFAULT_MSS;
- return 0;
-}
-
-static void drop_packet(struct sk_buff *skb)
-{
- atomic_inc(&cm_accel_dropped_pkts);
- dev_kfree_skb_any(skb);
-}
-
-static void handle_fin_pkt(struct nes_cm_node *cm_node)
-{
- nes_debug(NES_DBG_CM, "Received FIN, cm_node = %p, state = %u. "
- "refcnt=%d\n", cm_node, cm_node->state,
- atomic_read(&cm_node->ref_count));
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_RCVD:
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_MPAREJ_RCVD:
- cm_node->tcp_cntxt.rcv_nxt++;
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_LAST_ACK;
- send_fin(cm_node, NULL);
- break;
- case NES_CM_STATE_MPAREQ_SENT:
- create_event(cm_node, NES_CM_EVENT_ABORTED);
- cm_node->tcp_cntxt.rcv_nxt++;
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- add_ref_cm_node(cm_node);
- send_reset(cm_node, NULL);
- break;
- case NES_CM_STATE_FIN_WAIT1:
- cm_node->tcp_cntxt.rcv_nxt++;
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSING;
- send_ack(cm_node, NULL);
- /* Wait for ACK as this is simultaneous close..
- * After we receive ACK, do not send anything..
- * Just rm the node.. Done.. */
- break;
- case NES_CM_STATE_FIN_WAIT2:
- cm_node->tcp_cntxt.rcv_nxt++;
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_TIME_WAIT;
- send_ack(cm_node, NULL);
- schedule_nes_timer(cm_node, NULL, NES_TIMER_TYPE_CLOSE, 1, 0);
- break;
- case NES_CM_STATE_TIME_WAIT:
- cm_node->tcp_cntxt.rcv_nxt++;
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- break;
- case NES_CM_STATE_TSA:
- default:
- nes_debug(NES_DBG_CM, "Error Rcvd FIN for node-%p state = %d\n",
- cm_node, cm_node->state);
- break;
- }
-}
-
-
-static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
- struct tcphdr *tcph)
-{
-
- int reset = 0; /* whether to send reset in case of err.. */
- atomic_inc(&cm_resets_recvd);
- nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
- " refcnt=%d\n", cm_node, cm_node->state,
- atomic_read(&cm_node->ref_count));
- cleanup_retrans_entry(cm_node);
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_MPAREQ_SENT:
- nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
- "listener=%p state=%d\n", __func__, __LINE__, cm_node,
- cm_node->listener, cm_node->state);
- switch (cm_node->mpa_frame_rev) {
- case IETF_MPA_V2:
- cm_node->mpa_frame_rev = IETF_MPA_V1;
- /* send a syn and goto syn sent state */
- cm_node->state = NES_CM_STATE_SYN_SENT;
- if (send_syn(cm_node, 0, NULL)) {
- active_open_err(cm_node, skb, reset);
- }
- break;
- case IETF_MPA_V1:
- default:
- active_open_err(cm_node, skb, reset);
- break;
- }
- break;
- case NES_CM_STATE_MPAREQ_RCVD:
- atomic_inc(&cm_node->passive_state);
- dev_kfree_skb_any(skb);
- break;
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_SYN_RCVD:
- case NES_CM_STATE_LISTENING:
- nes_debug(NES_DBG_CM, "Bad state %s[%u]\n", __func__, __LINE__);
- passive_open_err(cm_node, skb, reset);
- break;
- case NES_CM_STATE_TSA:
- active_open_err(cm_node, skb, reset);
- break;
- case NES_CM_STATE_CLOSED:
- drop_packet(skb);
- break;
- case NES_CM_STATE_FIN_WAIT2:
- case NES_CM_STATE_FIN_WAIT1:
- case NES_CM_STATE_LAST_ACK:
- cm_node->cm_id->rem_ref(cm_node->cm_id);
- /* fall through */
- case NES_CM_STATE_TIME_WAIT:
- cm_node->state = NES_CM_STATE_CLOSED;
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- drop_packet(skb);
- break;
- default:
- drop_packet(skb);
- break;
- }
-}
-
-
-static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- int ret = 0;
- int datasize = skb->len;
- u8 *dataloc = skb->data;
-
- enum nes_cm_event_type type = NES_CM_EVENT_UNKNOWN;
- u32 res_type;
-
- ret = parse_mpa(cm_node, dataloc, &res_type, datasize);
- if (ret) {
- nes_debug(NES_DBG_CM, "didn't like MPA Request\n");
- if (cm_node->state == NES_CM_STATE_MPAREQ_SENT) {
- nes_debug(NES_DBG_CM, "%s[%u] create abort for "
- "cm_node=%p listener=%p state=%d\n", __func__,
- __LINE__, cm_node, cm_node->listener,
- cm_node->state);
- active_open_err(cm_node, skb, 1);
- } else {
- passive_open_err(cm_node, skb, 1);
- }
- return;
- }
-
- switch (cm_node->state) {
- case NES_CM_STATE_ESTABLISHED:
- if (res_type == NES_MPA_REQUEST_REJECT)
- /*BIG problem as we are receiving the MPA.. So should
- * not be REJECT.. This is Passive Open.. We can
- * only receive it Reject for Active Open...*/
- WARN_ON(1);
- cm_node->state = NES_CM_STATE_MPAREQ_RCVD;
- type = NES_CM_EVENT_MPA_REQ;
- atomic_set(&cm_node->passive_state,
- NES_PASSIVE_STATE_INDICATED);
- break;
- case NES_CM_STATE_MPAREQ_SENT:
- cleanup_retrans_entry(cm_node);
- if (res_type == NES_MPA_REQUEST_REJECT) {
- type = NES_CM_EVENT_MPA_REJECT;
- cm_node->state = NES_CM_STATE_MPAREJ_RCVD;
- } else {
- type = NES_CM_EVENT_CONNECTED;
- cm_node->state = NES_CM_STATE_TSA;
- }
- send_ack(cm_node, NULL);
- break;
- default:
- WARN_ON(1);
- break;
- }
- dev_kfree_skb_any(skb);
- create_event(cm_node, type);
-}
-
-static void indicate_pkt_err(struct nes_cm_node *cm_node, struct sk_buff *skb)
-{
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_MPAREQ_SENT:
- nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
- "listener=%p state=%d\n", __func__, __LINE__, cm_node,
- cm_node->listener, cm_node->state);
- active_open_err(cm_node, skb, 1);
- break;
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_SYN_RCVD:
- passive_open_err(cm_node, skb, 1);
- break;
- case NES_CM_STATE_TSA:
- default:
- drop_packet(skb);
- }
-}
-
-static int check_syn(struct nes_cm_node *cm_node, struct tcphdr *tcph,
- struct sk_buff *skb)
-{
- int err;
-
- err = ((ntohl(tcph->ack_seq) == cm_node->tcp_cntxt.loc_seq_num)) ? 0 : 1;
- if (err)
- active_open_err(cm_node, skb, 1);
-
- return err;
-}
-
-static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph,
- struct sk_buff *skb)
-{
- int err = 0;
- u32 seq;
- u32 ack_seq;
- u32 loc_seq_num = cm_node->tcp_cntxt.loc_seq_num;
- u32 rcv_nxt = cm_node->tcp_cntxt.rcv_nxt;
- u32 rcv_wnd;
-
- seq = ntohl(tcph->seq);
- ack_seq = ntohl(tcph->ack_seq);
- rcv_wnd = cm_node->tcp_cntxt.rcv_wnd;
- if (ack_seq != loc_seq_num)
- err = 1;
- else if (!between(seq, rcv_nxt, (rcv_nxt + rcv_wnd)))
- err = 1;
- if (err) {
- nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
- "listener=%p state=%d\n", __func__, __LINE__, cm_node,
- cm_node->listener, cm_node->state);
- indicate_pkt_err(cm_node, skb);
- nes_debug(NES_DBG_CM, "seq ERROR cm_node =%p seq=0x%08X "
- "rcv_nxt=0x%08X rcv_wnd=0x%x\n", cm_node, seq, rcv_nxt,
- rcv_wnd);
- }
- return err;
-}
-
-/*
- * handle_syn_pkt() is for Passive node. The syn packet is received when a node
- * is created with a listener or it may comein as rexmitted packet which in
- * that case will be just dropped.
- */
-static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
- struct tcphdr *tcph)
-{
- int ret;
- u32 inc_sequence;
- int optionsize;
-
- optionsize = (tcph->doff << 2) - sizeof(struct tcphdr);
- skb_trim(skb, 0);
- inc_sequence = ntohl(tcph->seq);
-
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_MPAREQ_SENT:
- /* Rcvd syn on active open connection*/
- active_open_err(cm_node, skb, 1);
- break;
- case NES_CM_STATE_LISTENING:
- /* Passive OPEN */
- if (atomic_read(&cm_node->listener->pend_accepts_cnt) >
- cm_node->listener->backlog) {
- nes_debug(NES_DBG_CM, "drop syn due to backlog "
- "pressure \n");
- cm_backlog_drops++;
- passive_open_err(cm_node, skb, 0);
- break;
- }
- ret = handle_tcp_options(cm_node, tcph, skb, optionsize,
- 1);
- if (ret) {
- passive_open_err(cm_node, skb, 0);
- /* drop pkt */
- break;
- }
- cm_node->tcp_cntxt.rcv_nxt = inc_sequence + 1;
- BUG_ON(cm_node->send_entry);
- cm_node->accept_pend = 1;
- atomic_inc(&cm_node->listener->pend_accepts_cnt);
-
- cm_node->state = NES_CM_STATE_SYN_RCVD;
- send_syn(cm_node, 1, skb);
- break;
- case NES_CM_STATE_CLOSED:
- cleanup_retrans_entry(cm_node);
- add_ref_cm_node(cm_node);
- send_reset(cm_node, skb);
- break;
- case NES_CM_STATE_TSA:
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_FIN_WAIT1:
- case NES_CM_STATE_FIN_WAIT2:
- case NES_CM_STATE_MPAREQ_RCVD:
- case NES_CM_STATE_LAST_ACK:
- case NES_CM_STATE_CLOSING:
- case NES_CM_STATE_UNKNOWN:
- default:
- drop_packet(skb);
- break;
- }
-}
-
-static void handle_synack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
- struct tcphdr *tcph)
-{
- int ret;
- u32 inc_sequence;
- int optionsize;
-
- optionsize = (tcph->doff << 2) - sizeof(struct tcphdr);
- skb_trim(skb, 0);
- inc_sequence = ntohl(tcph->seq);
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_SENT:
- cleanup_retrans_entry(cm_node);
- /* active open */
- if (check_syn(cm_node, tcph, skb))
- return;
- cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq);
- /* setup options */
- ret = handle_tcp_options(cm_node, tcph, skb, optionsize, 0);
- if (ret) {
- nes_debug(NES_DBG_CM, "cm_node=%p tcp_options failed\n",
- cm_node);
- break;
- }
- cleanup_retrans_entry(cm_node);
- cm_node->tcp_cntxt.rcv_nxt = inc_sequence + 1;
- send_mpa_request(cm_node, skb);
- cm_node->state = NES_CM_STATE_MPAREQ_SENT;
- break;
- case NES_CM_STATE_MPAREQ_RCVD:
- /* passive open, so should not be here */
- passive_open_err(cm_node, skb, 1);
- break;
- case NES_CM_STATE_LISTENING:
- cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- send_reset(cm_node, skb);
- break;
- case NES_CM_STATE_CLOSED:
- cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
- cleanup_retrans_entry(cm_node);
- add_ref_cm_node(cm_node);
- send_reset(cm_node, skb);
- break;
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_FIN_WAIT1:
- case NES_CM_STATE_FIN_WAIT2:
- case NES_CM_STATE_LAST_ACK:
- case NES_CM_STATE_TSA:
- case NES_CM_STATE_CLOSING:
- case NES_CM_STATE_UNKNOWN:
- case NES_CM_STATE_MPAREQ_SENT:
- default:
- drop_packet(skb);
- break;
- }
-}
-
-static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
- struct tcphdr *tcph)
-{
- int datasize = 0;
- u32 inc_sequence;
- int ret = 0;
- int optionsize;
-
- optionsize = (tcph->doff << 2) - sizeof(struct tcphdr);
-
- if (check_seq(cm_node, tcph, skb))
- return -EINVAL;
-
- skb_pull(skb, tcph->doff << 2);
- inc_sequence = ntohl(tcph->seq);
- datasize = skb->len;
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_RCVD:
- /* Passive OPEN */
- cleanup_retrans_entry(cm_node);
- ret = handle_tcp_options(cm_node, tcph, skb, optionsize, 1);
- if (ret)
- break;
- cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq);
- cm_node->state = NES_CM_STATE_ESTABLISHED;
- if (datasize) {
- cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
- handle_rcv_mpa(cm_node, skb);
- } else { /* rcvd ACK only */
- dev_kfree_skb_any(skb);
- }
- break;
- case NES_CM_STATE_ESTABLISHED:
- /* Passive OPEN */
- cleanup_retrans_entry(cm_node);
- if (datasize) {
- cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
- handle_rcv_mpa(cm_node, skb);
- } else {
- drop_packet(skb);
- }
- break;
- case NES_CM_STATE_MPAREQ_SENT:
- cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq);
- if (datasize) {
- cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
- handle_rcv_mpa(cm_node, skb);
- } else { /* Could be just an ack pkt.. */
- dev_kfree_skb_any(skb);
- }
- break;
- case NES_CM_STATE_LISTENING:
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- send_reset(cm_node, skb);
- break;
- case NES_CM_STATE_CLOSED:
- cleanup_retrans_entry(cm_node);
- add_ref_cm_node(cm_node);
- send_reset(cm_node, skb);
- break;
- case NES_CM_STATE_LAST_ACK:
- case NES_CM_STATE_CLOSING:
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- cm_node->cm_id->rem_ref(cm_node->cm_id);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- drop_packet(skb);
- break;
- case NES_CM_STATE_FIN_WAIT1:
- cleanup_retrans_entry(cm_node);
- drop_packet(skb);
- cm_node->state = NES_CM_STATE_FIN_WAIT2;
- break;
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_FIN_WAIT2:
- case NES_CM_STATE_TSA:
- case NES_CM_STATE_MPAREQ_RCVD:
- case NES_CM_STATE_UNKNOWN:
- default:
- cleanup_retrans_entry(cm_node);
- drop_packet(skb);
- break;
- }
- return ret;
-}
-
-
-
-static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph,
- struct sk_buff *skb, int optionsize, int passive)
-{
- u8 *optionsloc = (u8 *)&tcph[1];
-
- if (optionsize) {
- if (process_options(cm_node, optionsloc, optionsize,
- (u32)tcph->syn)) {
- nes_debug(NES_DBG_CM, "%s: Node %p, Sending RESET\n",
- __func__, cm_node);
- if (passive)
- passive_open_err(cm_node, skb, 1);
- else
- active_open_err(cm_node, skb, 1);
- return 1;
- }
- }
-
- cm_node->tcp_cntxt.snd_wnd = ntohs(tcph->window) <<
- cm_node->tcp_cntxt.snd_wscale;
-
- if (cm_node->tcp_cntxt.snd_wnd > cm_node->tcp_cntxt.max_snd_wnd)
- cm_node->tcp_cntxt.max_snd_wnd = cm_node->tcp_cntxt.snd_wnd;
- return 0;
-}
-
-/*
- * active_open_err() will send reset() if flag set..
- * It will also send ABORT event.
- */
-static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
- int reset)
-{
- cleanup_retrans_entry(cm_node);
- if (reset) {
- nes_debug(NES_DBG_CM, "ERROR active err called for cm_node=%p, "
- "state=%d\n", cm_node, cm_node->state);
- add_ref_cm_node(cm_node);
- send_reset(cm_node, skb);
- } else {
- dev_kfree_skb_any(skb);
- }
-
- cm_node->state = NES_CM_STATE_CLOSED;
- create_event(cm_node, NES_CM_EVENT_ABORTED);
-}
-
-/*
- * passive_open_err() will either do a reset() or will free up the skb and
- * remove the cm_node.
- */
-static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
- int reset)
-{
- cleanup_retrans_entry(cm_node);
- cm_node->state = NES_CM_STATE_CLOSED;
- if (reset) {
- nes_debug(NES_DBG_CM, "passive_open_err sending RST for "
- "cm_node=%p state =%d\n", cm_node, cm_node->state);
- send_reset(cm_node, skb);
- } else {
- dev_kfree_skb_any(skb);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- }
-}
-
-/*
- * free_retrans_entry() routines assumes that the retrans_list_lock has
- * been acquired before calling.
- */
-static void free_retrans_entry(struct nes_cm_node *cm_node)
-{
- struct nes_timer_entry *send_entry;
-
- send_entry = cm_node->send_entry;
- if (send_entry) {
- cm_node->send_entry = NULL;
- dev_kfree_skb_any(send_entry->skb);
- kfree(send_entry);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- }
-}
-
-static void cleanup_retrans_entry(struct nes_cm_node *cm_node)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
- free_retrans_entry(cm_node);
- spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
-}
-
-/**
- * process_packet
- * Returns skb if to be freed, else it will return NULL if already used..
- */
-static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb,
- struct nes_cm_core *cm_core)
-{
- enum nes_tcpip_pkt_type pkt_type = NES_PKT_TYPE_UNKNOWN;
- struct tcphdr *tcph = tcp_hdr(skb);
- u32 fin_set = 0;
- int ret = 0;
-
- skb_pull(skb, ip_hdr(skb)->ihl << 2);
-
- nes_debug(NES_DBG_CM, "process_packet: cm_node=%p state =%d syn=%d "
- "ack=%d rst=%d fin=%d\n", cm_node, cm_node->state, tcph->syn,
- tcph->ack, tcph->rst, tcph->fin);
-
- if (tcph->rst) {
- pkt_type = NES_PKT_TYPE_RST;
- } else if (tcph->syn) {
- pkt_type = NES_PKT_TYPE_SYN;
- if (tcph->ack)
- pkt_type = NES_PKT_TYPE_SYNACK;
- } else if (tcph->ack) {
- pkt_type = NES_PKT_TYPE_ACK;
- }
- if (tcph->fin)
- fin_set = 1;
-
- switch (pkt_type) {
- case NES_PKT_TYPE_SYN:
- handle_syn_pkt(cm_node, skb, tcph);
- break;
- case NES_PKT_TYPE_SYNACK:
- handle_synack_pkt(cm_node, skb, tcph);
- break;
- case NES_PKT_TYPE_ACK:
- ret = handle_ack_pkt(cm_node, skb, tcph);
- if (fin_set && !ret)
- handle_fin_pkt(cm_node);
- break;
- case NES_PKT_TYPE_RST:
- handle_rst_pkt(cm_node, skb, tcph);
- break;
- default:
- if ((fin_set) && (!check_seq(cm_node, tcph, skb)))
- handle_fin_pkt(cm_node);
- drop_packet(skb);
- break;
- }
-}
-
-/**
- * mini_cm_listen - create a listen node with params
- */
-static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core,
- struct nes_vnic *nesvnic, struct nes_cm_info *cm_info)
-{
- struct nes_cm_listener *listener;
- unsigned long flags;
-
- nes_debug(NES_DBG_CM, "Search for 0x%08x : 0x%04x\n",
- cm_info->loc_addr, cm_info->loc_port);
-
- /* cannot have multiple matching listeners */
- listener = find_listener(cm_core, cm_info->loc_addr, cm_info->loc_port,
- NES_CM_LISTENER_EITHER_STATE);
-
- if (listener && listener->listener_state == NES_CM_LISTENER_ACTIVE_STATE) {
- /* find automatically incs ref count ??? */
- atomic_dec(&listener->ref_count);
- nes_debug(NES_DBG_CM, "Not creating listener since it already exists\n");
- return NULL;
- }
-
- if (!listener) {
- /* create a CM listen node (1/2 node to compare incoming traffic to) */
- listener = kzalloc(sizeof(*listener), GFP_ATOMIC);
- if (!listener)
- return NULL;
-
- listener->loc_addr = cm_info->loc_addr;
- listener->loc_port = cm_info->loc_port;
- listener->reused_node = 0;
-
- atomic_set(&listener->ref_count, 1);
- }
- /* pasive case */
- /* find already inc'ed the ref count */
- else {
- listener->reused_node = 1;
- }
-
- listener->cm_id = cm_info->cm_id;
- atomic_set(&listener->pend_accepts_cnt, 0);
- listener->cm_core = cm_core;
- listener->nesvnic = nesvnic;
- atomic_inc(&cm_core->node_cnt);
-
- listener->conn_type = cm_info->conn_type;
- listener->backlog = cm_info->backlog;
- listener->listener_state = NES_CM_LISTENER_ACTIVE_STATE;
-
- if (!listener->reused_node) {
- spin_lock_irqsave(&cm_core->listen_list_lock, flags);
- list_add(&listener->list, &cm_core->listen_list.list);
- spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
- atomic_inc(&cm_core->listen_node_cnt);
- }
-
- nes_debug(NES_DBG_CM, "Api - listen(): addr=0x%08X, port=0x%04x,"
- " listener = %p, backlog = %d, cm_id = %p.\n",
- cm_info->loc_addr, cm_info->loc_port,
- listener, listener->backlog, listener->cm_id);
-
- return listener;
-}
-
-
-/**
- * mini_cm_connect - make a connection node with params
- */
-static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
- struct nes_vnic *nesvnic, u16 private_data_len,
- void *private_data, struct nes_cm_info *cm_info)
-{
- int ret = 0;
- struct nes_cm_node *cm_node;
- struct nes_cm_listener *loopbackremotelistener;
- struct nes_cm_node *loopbackremotenode;
- struct nes_cm_info loopback_cm_info;
- u8 *start_buff;
-
- /* create a CM connection node */
- cm_node = make_cm_node(cm_core, nesvnic, cm_info, NULL);
- if (!cm_node)
- return NULL;
-
- /* set our node side to client (active) side */
- cm_node->tcp_cntxt.client = 1;
- cm_node->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE;
-
- if (cm_info->loc_addr == cm_info->rem_addr) {
- loopbackremotelistener = find_listener(cm_core,
- cm_node->loc_addr, cm_node->rem_port,
- NES_CM_LISTENER_ACTIVE_STATE);
- if (loopbackremotelistener == NULL) {
- create_event(cm_node, NES_CM_EVENT_ABORTED);
- } else {
- loopback_cm_info = *cm_info;
- loopback_cm_info.loc_port = cm_info->rem_port;
- loopback_cm_info.rem_port = cm_info->loc_port;
- loopback_cm_info.loc_port =
- cm_info->rem_port;
- loopback_cm_info.rem_port =
- cm_info->loc_port;
- loopback_cm_info.cm_id = loopbackremotelistener->cm_id;
- loopbackremotenode = make_cm_node(cm_core, nesvnic,
- &loopback_cm_info, loopbackremotelistener);
- if (!loopbackremotenode) {
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- return NULL;
- }
- atomic_inc(&cm_loopbacks);
- loopbackremotenode->loopbackpartner = cm_node;
- loopbackremotenode->tcp_cntxt.rcv_wscale =
- NES_CM_DEFAULT_RCV_WND_SCALE;
- cm_node->loopbackpartner = loopbackremotenode;
- memcpy(loopbackremotenode->mpa_frame_buf, private_data,
- private_data_len);
- loopbackremotenode->mpa_frame_size = private_data_len;
-
- /* we are done handling this state. */
- /* set node to a TSA state */
- cm_node->state = NES_CM_STATE_TSA;
- cm_node->tcp_cntxt.rcv_nxt =
- loopbackremotenode->tcp_cntxt.loc_seq_num;
- loopbackremotenode->tcp_cntxt.rcv_nxt =
- cm_node->tcp_cntxt.loc_seq_num;
- cm_node->tcp_cntxt.max_snd_wnd =
- loopbackremotenode->tcp_cntxt.rcv_wnd;
- loopbackremotenode->tcp_cntxt.max_snd_wnd =
- cm_node->tcp_cntxt.rcv_wnd;
- cm_node->tcp_cntxt.snd_wnd =
- loopbackremotenode->tcp_cntxt.rcv_wnd;
- loopbackremotenode->tcp_cntxt.snd_wnd =
- cm_node->tcp_cntxt.rcv_wnd;
- cm_node->tcp_cntxt.snd_wscale =
- loopbackremotenode->tcp_cntxt.rcv_wscale;
- loopbackremotenode->tcp_cntxt.snd_wscale =
- cm_node->tcp_cntxt.rcv_wscale;
- loopbackremotenode->state = NES_CM_STATE_MPAREQ_RCVD;
- create_event(loopbackremotenode, NES_CM_EVENT_MPA_REQ);
- }
- return cm_node;
- }
-
- start_buff = &cm_node->mpa_frame_buf[0] + sizeof(struct ietf_mpa_v2);
- cm_node->mpa_frame_size = private_data_len;
-
- memcpy(start_buff, private_data, private_data_len);
-
- /* send a syn and goto syn sent state */
- cm_node->state = NES_CM_STATE_SYN_SENT;
- ret = send_syn(cm_node, 0, NULL);
-
- if (ret) {
- /* error in sending the syn free up the cm_node struct */
- nes_debug(NES_DBG_CM, "Api - connect() FAILED: dest "
- "addr=0x%08X, port=0x%04x, cm_node=%p, cm_id = %p.\n",
- cm_node->rem_addr, cm_node->rem_port, cm_node,
- cm_node->cm_id);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- cm_node = NULL;
- }
-
- if (cm_node) {
- nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X,"
- "port=0x%04x, cm_node=%p, cm_id = %p.\n",
- cm_node->rem_addr, cm_node->rem_port, cm_node,
- cm_node->cm_id);
- }
-
- return cm_node;
-}
-
-
-/**
- * mini_cm_accept - accept a connection
- * This function is never called
- */
-static int mini_cm_accept(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
-{
- return 0;
-}
-
-
-/**
- * mini_cm_reject - reject and teardown a connection
- */
-static int mini_cm_reject(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
-{
- int ret = 0;
- int err = 0;
- int passive_state;
- struct nes_cm_event event;
- struct iw_cm_id *cm_id = cm_node->cm_id;
- struct nes_cm_node *loopback = cm_node->loopbackpartner;
-
- nes_debug(NES_DBG_CM, "%s cm_node=%p type=%d state=%d\n",
- __func__, cm_node, cm_node->tcp_cntxt.client, cm_node->state);
-
- if (cm_node->tcp_cntxt.client)
- return ret;
- cleanup_retrans_entry(cm_node);
-
- if (!loopback) {
- passive_state = atomic_add_return(1, &cm_node->passive_state);
- if (passive_state == NES_SEND_RESET_EVENT) {
- cm_node->state = NES_CM_STATE_CLOSED;
- rem_ref_cm_node(cm_core, cm_node);
- } else {
- if (cm_node->state == NES_CM_STATE_LISTENER_DESTROYED) {
- rem_ref_cm_node(cm_core, cm_node);
- } else {
- ret = send_mpa_reject(cm_node);
- if (ret) {
- cm_node->state = NES_CM_STATE_CLOSED;
- err = send_reset(cm_node, NULL);
- if (err)
- WARN_ON(1);
- } else {
- cm_id->add_ref(cm_id);
- }
- }
- }
- } else {
- cm_node->cm_id = NULL;
- if (cm_node->state == NES_CM_STATE_LISTENER_DESTROYED) {
- rem_ref_cm_node(cm_core, cm_node);
- rem_ref_cm_node(cm_core, loopback);
- } else {
- event.cm_node = loopback;
- event.cm_info.rem_addr = loopback->rem_addr;
- event.cm_info.loc_addr = loopback->loc_addr;
- event.cm_info.rem_port = loopback->rem_port;
- event.cm_info.loc_port = loopback->loc_port;
- event.cm_info.cm_id = loopback->cm_id;
- cm_event_mpa_reject(&event);
- rem_ref_cm_node(cm_core, cm_node);
- loopback->state = NES_CM_STATE_CLOSING;
-
- cm_id = loopback->cm_id;
- rem_ref_cm_node(cm_core, loopback);
- cm_id->rem_ref(cm_id);
- }
- }
-
- return ret;
-}
-
-
-/**
- * mini_cm_close
- */
-static int mini_cm_close(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
-{
- int ret = 0;
-
- if (!cm_core || !cm_node)
- return -EINVAL;
-
- switch (cm_node->state) {
- case NES_CM_STATE_SYN_RCVD:
- case NES_CM_STATE_SYN_SENT:
- case NES_CM_STATE_ONE_SIDE_ESTABLISHED:
- case NES_CM_STATE_ESTABLISHED:
- case NES_CM_STATE_ACCEPTING:
- case NES_CM_STATE_MPAREQ_SENT:
- case NES_CM_STATE_MPAREQ_RCVD:
- cleanup_retrans_entry(cm_node);
- send_reset(cm_node, NULL);
- break;
- case NES_CM_STATE_CLOSE_WAIT:
- cm_node->state = NES_CM_STATE_LAST_ACK;
- send_fin(cm_node, NULL);
- break;
- case NES_CM_STATE_FIN_WAIT1:
- case NES_CM_STATE_FIN_WAIT2:
- case NES_CM_STATE_LAST_ACK:
- case NES_CM_STATE_TIME_WAIT:
- case NES_CM_STATE_CLOSING:
- ret = -1;
- break;
- case NES_CM_STATE_LISTENING:
- cleanup_retrans_entry(cm_node);
- send_reset(cm_node, NULL);
- break;
- case NES_CM_STATE_MPAREJ_RCVD:
- case NES_CM_STATE_UNKNOWN:
- case NES_CM_STATE_INITED:
- case NES_CM_STATE_CLOSED:
- case NES_CM_STATE_LISTENER_DESTROYED:
- ret = rem_ref_cm_node(cm_core, cm_node);
- break;
- case NES_CM_STATE_TSA:
- if (cm_node->send_entry)
- printk(KERN_ERR "ERROR Close got called from STATE_TSA "
- "send_entry=%p\n", cm_node->send_entry);
- ret = rem_ref_cm_node(cm_core, cm_node);
- break;
- }
- return ret;
-}
-
-
-/**
- * recv_pkt - recv an ETHERNET packet, and process it through CM
- * node state machine
- */
-static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
- struct nes_vnic *nesvnic, struct sk_buff *skb)
-{
- struct nes_cm_node *cm_node = NULL;
- struct nes_cm_listener *listener = NULL;
- struct iphdr *iph;
- struct tcphdr *tcph;
- struct nes_cm_info nfo;
- int skb_handled = 1;
- __be32 tmp_daddr, tmp_saddr;
-
- if (!skb)
- return 0;
- if (skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr))
- return 0;
-
- iph = (struct iphdr *)skb->data;
- tcph = (struct tcphdr *)(skb->data + sizeof(struct iphdr));
-
- nfo.loc_addr = ntohl(iph->daddr);
- nfo.loc_port = ntohs(tcph->dest);
- nfo.rem_addr = ntohl(iph->saddr);
- nfo.rem_port = ntohs(tcph->source);
-
- tmp_daddr = cpu_to_be32(iph->daddr);
- tmp_saddr = cpu_to_be32(iph->saddr);
-
- nes_debug(NES_DBG_CM, "Received packet: dest=%pI4:0x%04X src=%pI4:0x%04X\n",
- &tmp_daddr, tcph->dest, &tmp_saddr, tcph->source);
-
- do {
- cm_node = find_node(cm_core,
- nfo.rem_port, nfo.rem_addr,
- nfo.loc_port, nfo.loc_addr);
-
- if (!cm_node) {
- /* Only type of packet accepted are for */
- /* the PASSIVE open (syn only) */
- if ((!tcph->syn) || (tcph->ack)) {
- skb_handled = 0;
- break;
- }
- listener = find_listener(cm_core, nfo.loc_addr,
- nfo.loc_port,
- NES_CM_LISTENER_ACTIVE_STATE);
- if (!listener) {
- nfo.cm_id = NULL;
- nfo.conn_type = 0;
- nes_debug(NES_DBG_CM, "Unable to find listener for the pkt\n");
- skb_handled = 0;
- break;
- }
- nfo.cm_id = listener->cm_id;
- nfo.conn_type = listener->conn_type;
- cm_node = make_cm_node(cm_core, nesvnic, &nfo,
- listener);
- if (!cm_node) {
- nes_debug(NES_DBG_CM, "Unable to allocate "
- "node\n");
- cm_packets_dropped++;
- atomic_dec(&listener->ref_count);
- dev_kfree_skb_any(skb);
- break;
- }
- if (!tcph->rst && !tcph->fin) {
- cm_node->state = NES_CM_STATE_LISTENING;
- } else {
- cm_packets_dropped++;
- rem_ref_cm_node(cm_core, cm_node);
- dev_kfree_skb_any(skb);
- break;
- }
- add_ref_cm_node(cm_node);
- } else if (cm_node->state == NES_CM_STATE_TSA) {
- if (cm_node->nesqp->pau_mode)
- nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
- else {
- rem_ref_cm_node(cm_core, cm_node);
- atomic_inc(&cm_accel_dropped_pkts);
- dev_kfree_skb_any(skb);
- }
- break;
- }
- skb_reset_network_header(skb);
- skb_set_transport_header(skb, sizeof(*tcph));
- skb->len = ntohs(iph->tot_len);
- process_packet(cm_node, skb, cm_core);
- rem_ref_cm_node(cm_core, cm_node);
- } while (0);
- return skb_handled;
-}
-
-
-/**
- * nes_cm_alloc_core - allocate a top level instance of a cm core
- */
-static struct nes_cm_core *nes_cm_alloc_core(void)
-{
- struct nes_cm_core *cm_core;
-
- /* setup the CM core */
- /* alloc top level core control structure */
- cm_core = kzalloc(sizeof(*cm_core), GFP_KERNEL);
- if (!cm_core)
- return NULL;
-
- INIT_LIST_HEAD(&cm_core->connected_nodes);
- timer_setup(&cm_core->tcp_timer, nes_cm_timer_tick, 0);
-
- cm_core->mtu = NES_CM_DEFAULT_MTU;
- cm_core->state = NES_CM_STATE_INITED;
- cm_core->free_tx_pkt_max = NES_CM_DEFAULT_FREE_PKTS;
-
- atomic_set(&cm_core->events_posted, 0);
-
- cm_core->api = &nes_cm_api;
-
- spin_lock_init(&cm_core->ht_lock);
- spin_lock_init(&cm_core->listen_list_lock);
-
- INIT_LIST_HEAD(&cm_core->listen_list.list);
-
- nes_debug(NES_DBG_CM, "Init CM Core completed -- cm_core=%p\n", cm_core);
-
- nes_debug(NES_DBG_CM, "Enable QUEUE EVENTS\n");
- cm_core->event_wq = alloc_ordered_workqueue("nesewq", 0);
- if (!cm_core->event_wq)
- goto out_free_cmcore;
- cm_core->post_event = nes_cm_post_event;
- nes_debug(NES_DBG_CM, "Enable QUEUE DISCONNECTS\n");
- cm_core->disconn_wq = alloc_ordered_workqueue("nesdwq", 0);
- if (!cm_core->disconn_wq)
- goto out_free_wq;
-
- print_core(cm_core);
- return cm_core;
-
-out_free_wq:
- destroy_workqueue(cm_core->event_wq);
-out_free_cmcore:
- kfree(cm_core);
- return NULL;
-}
-
-
-/**
- * mini_cm_dealloc_core - deallocate a top level instance of a cm core
- */
-static int mini_cm_dealloc_core(struct nes_cm_core *cm_core)
-{
- nes_debug(NES_DBG_CM, "De-Alloc CM Core (%p)\n", cm_core);
-
- if (!cm_core)
- return -EINVAL;
-
- barrier();
-
- if (timer_pending(&cm_core->tcp_timer))
- del_timer(&cm_core->tcp_timer);
-
- destroy_workqueue(cm_core->event_wq);
- destroy_workqueue(cm_core->disconn_wq);
- nes_debug(NES_DBG_CM, "\n");
- kfree(cm_core);
-
- return 0;
-}
-
-
-/**
- * mini_cm_get
- */
-static int mini_cm_get(struct nes_cm_core *cm_core)
-{
- return cm_core->state;
-}
-
-
-/**
- * mini_cm_set
- */
-static int mini_cm_set(struct nes_cm_core *cm_core, u32 type, u32 value)
-{
- int ret = 0;
-
- switch (type) {
- case NES_CM_SET_PKT_SIZE:
- cm_core->mtu = value;
- break;
- case NES_CM_SET_FREE_PKT_Q_SIZE:
- cm_core->free_tx_pkt_max = value;
- break;
- default:
- /* unknown set option */
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-
-/**
- * nes_cm_init_tsa_conn setup HW; MPA frames must be
- * successfully exchanged when this is called
- */
-static int nes_cm_init_tsa_conn(struct nes_qp *nesqp, struct nes_cm_node *cm_node)
-{
- int ret = 0;
-
- if (!nesqp)
- return -EINVAL;
-
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_IPV4 |
- NES_QPCONTEXT_MISC_NO_NAGLE | NES_QPCONTEXT_MISC_DO_NOT_FRAG |
- NES_QPCONTEXT_MISC_DROS);
-
- if (cm_node->tcp_cntxt.snd_wscale || cm_node->tcp_cntxt.rcv_wscale)
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_WSCALE);
-
- nesqp->nesqp_context->misc2 |= cpu_to_le32(64 << NES_QPCONTEXT_MISC2_TTL_SHIFT);
-
- nesqp->nesqp_context->misc2 |= cpu_to_le32(
- cm_node->tos << NES_QPCONTEXT_MISC2_TOS_SHIFT);
-
- nesqp->nesqp_context->mss |= cpu_to_le32(((u32)cm_node->tcp_cntxt.mss) << 16);
-
- nesqp->nesqp_context->tcp_state_flow_label |= cpu_to_le32(
- (u32)NES_QPCONTEXT_TCPSTATE_EST << NES_QPCONTEXT_TCPFLOW_TCP_STATE_SHIFT);
-
- nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32(
- (cm_node->tcp_cntxt.snd_wscale << NES_QPCONTEXT_PDWSCALE_SND_WSCALE_SHIFT) &
- NES_QPCONTEXT_PDWSCALE_SND_WSCALE_MASK);
-
- nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32(
- (cm_node->tcp_cntxt.rcv_wscale << NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_SHIFT) &
- NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_MASK);
-
- nesqp->nesqp_context->keepalive = cpu_to_le32(0x80);
- nesqp->nesqp_context->ts_recent = 0;
- nesqp->nesqp_context->ts_age = 0;
- nesqp->nesqp_context->snd_nxt = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
- nesqp->nesqp_context->snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.snd_wnd);
- nesqp->nesqp_context->rcv_nxt = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt);
- nesqp->nesqp_context->rcv_wnd = cpu_to_le32(cm_node->tcp_cntxt.rcv_wnd <<
- cm_node->tcp_cntxt.rcv_wscale);
- nesqp->nesqp_context->snd_max = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
- nesqp->nesqp_context->snd_una = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
- nesqp->nesqp_context->srtt = 0;
- nesqp->nesqp_context->rttvar = cpu_to_le32(0x6);
- nesqp->nesqp_context->ssthresh = cpu_to_le32(0x3FFFC000);
- nesqp->nesqp_context->cwnd = cpu_to_le32(2 * cm_node->tcp_cntxt.mss);
- nesqp->nesqp_context->snd_wl1 = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt);
- nesqp->nesqp_context->snd_wl2 = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
- nesqp->nesqp_context->max_snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.max_snd_wnd);
-
- nes_debug(NES_DBG_CM, "QP%u: rcv_nxt = 0x%08X, snd_nxt = 0x%08X,"
- " Setting MSS to %u, PDWscale = 0x%08X, rcv_wnd = %u, context misc = 0x%08X.\n",
- nesqp->hwqp.qp_id, le32_to_cpu(nesqp->nesqp_context->rcv_nxt),
- le32_to_cpu(nesqp->nesqp_context->snd_nxt),
- cm_node->tcp_cntxt.mss, le32_to_cpu(nesqp->nesqp_context->pd_index_wscale),
- le32_to_cpu(nesqp->nesqp_context->rcv_wnd),
- le32_to_cpu(nesqp->nesqp_context->misc));
- nes_debug(NES_DBG_CM, " snd_wnd = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->snd_wnd));
- nes_debug(NES_DBG_CM, " snd_cwnd = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->cwnd));
- nes_debug(NES_DBG_CM, " max_swnd = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->max_snd_wnd));
-
- nes_debug(NES_DBG_CM, "Change cm_node state to TSA\n");
- cm_node->state = NES_CM_STATE_TSA;
-
- return ret;
-}
-
-
-/**
- * nes_cm_disconn
- */
-int nes_cm_disconn(struct nes_qp *nesqp)
-{
- struct disconn_work *work;
-
- work = kzalloc(sizeof *work, GFP_ATOMIC);
- if (!work)
- return -ENOMEM; /* Timer will clean up */
-
- nes_add_ref(&nesqp->ibqp);
- work->nesqp = nesqp;
- INIT_WORK(&work->work, nes_disconnect_worker);
- queue_work(g_cm_core->disconn_wq, &work->work);
- return 0;
-}
-
-
-/**
- * nes_disconnect_worker
- */
-static void nes_disconnect_worker(struct work_struct *work)
-{
- struct disconn_work *dwork = container_of(work, struct disconn_work, work);
- struct nes_qp *nesqp = dwork->nesqp;
-
- kfree(dwork);
- nes_debug(NES_DBG_CM, "processing AEQE id 0x%04X for QP%u.\n",
- nesqp->last_aeq, nesqp->hwqp.qp_id);
- nes_cm_disconn_true(nesqp);
- nes_rem_ref(&nesqp->ibqp);
-}
-
-
-/**
- * nes_cm_disconn_true
- */
-static int nes_cm_disconn_true(struct nes_qp *nesqp)
-{
- unsigned long flags;
- int ret = 0;
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- struct nes_vnic *nesvnic;
- u16 last_ae;
- u8 original_hw_tcp_state;
- u8 original_ibqp_state;
- int disconn_status = 0;
- int issue_disconn = 0;
- int issue_close = 0;
- int issue_flush = 0;
- u32 flush_q = NES_CQP_FLUSH_RQ;
- struct ib_event ibevent;
-
- if (!nesqp) {
- nes_debug(NES_DBG_CM, "disconnect_worker nesqp is NULL\n");
- return -1;
- }
-
- spin_lock_irqsave(&nesqp->lock, flags);
- cm_id = nesqp->cm_id;
- /* make sure we havent already closed this connection */
- if (!cm_id) {
- nes_debug(NES_DBG_CM, "QP%u disconnect_worker cmid is NULL\n",
- nesqp->hwqp.qp_id);
- spin_unlock_irqrestore(&nesqp->lock, flags);
- return -1;
- }
-
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- nes_debug(NES_DBG_CM, "Disconnecting QP%u\n", nesqp->hwqp.qp_id);
-
- original_hw_tcp_state = nesqp->hw_tcp_state;
- original_ibqp_state = nesqp->ibqp_state;
- last_ae = nesqp->last_aeq;
-
- if (nesqp->term_flags) {
- issue_disconn = 1;
- issue_close = 1;
- nesqp->cm_id = NULL;
- del_timer(&nesqp->terminate_timer);
- if (nesqp->flush_issued == 0) {
- nesqp->flush_issued = 1;
- issue_flush = 1;
- }
- } else if ((original_hw_tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) ||
- ((original_ibqp_state == IB_QPS_RTS) &&
- (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET))) {
- issue_disconn = 1;
- if (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET)
- disconn_status = -ECONNRESET;
- }
-
- if (((original_hw_tcp_state == NES_AEQE_TCP_STATE_CLOSED) ||
- (original_hw_tcp_state == NES_AEQE_TCP_STATE_TIME_WAIT) ||
- (last_ae == NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) ||
- (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET))) {
- issue_close = 1;
- nesqp->cm_id = NULL;
- if (nesqp->flush_issued == 0) {
- nesqp->flush_issued = 1;
- issue_flush = 1;
- }
- }
-
- spin_unlock_irqrestore(&nesqp->lock, flags);
-
- if ((issue_flush) && (nesqp->destroyed == 0)) {
- /* Flush the queue(s) */
- if (nesqp->hw_iwarp_state >= NES_AEQE_IWARP_STATE_TERMINATE)
- flush_q |= NES_CQP_FLUSH_SQ;
- flush_wqes(nesvnic->nesdev, nesqp, flush_q, 1);
-
- if (nesqp->term_flags) {
- ibevent.device = nesqp->ibqp.device;
- ibevent.event = nesqp->terminate_eventtype;
- ibevent.element.qp = &nesqp->ibqp;
- if (nesqp->ibqp.event_handler)
- nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context);
- }
- }
-
- if ((cm_id) && (cm_id->event_handler)) {
- if (issue_disconn) {
- atomic_inc(&cm_disconnects);
- cm_event.event = IW_CM_EVENT_DISCONNECT;
- cm_event.status = disconn_status;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
-
- nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event"
- " for QP%u, SQ Head = %u, SQ Tail = %u. "
- "cm_id = %p, refcount = %u.\n",
- nesqp->hwqp.qp_id, nesqp->hwqp.sq_head,
- nesqp->hwqp.sq_tail, cm_id,
- atomic_read(&nesqp->refcount));
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- if (ret)
- nes_debug(NES_DBG_CM, "OFA CM event_handler "
- "returned, ret=%d\n", ret);
- }
-
- if (issue_close) {
- atomic_inc(&cm_closes);
- nes_disconnect(nesqp, 1);
-
- cm_id->provider_data = nesqp;
- /* Send up the close complete event */
- cm_event.event = IW_CM_EVENT_CLOSE;
- cm_event.status = 0;
- cm_event.provider_data = cm_id->provider_data;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- if (ret)
- nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
-
- cm_id->rem_ref(cm_id);
- }
- }
-
- return 0;
-}
-
-
-/**
- * nes_disconnect
- */
-static int nes_disconnect(struct nes_qp *nesqp, int abrupt)
-{
- int ret = 0;
- struct nes_vnic *nesvnic;
- struct nes_device *nesdev;
- struct nes_ib_device *nesibdev;
-
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- if (!nesvnic)
- return -EINVAL;
-
- nesdev = nesvnic->nesdev;
- nesibdev = nesvnic->nesibdev;
-
- nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
- netdev_refcnt_read(nesvnic->netdev));
-
- if (nesqp->active_conn) {
-
- /* indicate this connection is NOT active */
- nesqp->active_conn = 0;
- } else {
- /* Need to free the Last Streaming Mode Message */
- if (nesqp->ietf_frame) {
- if (nesqp->lsmm_mr)
- nesibdev->ibdev.ops.dereg_mr(nesqp->lsmm_mr,
- NULL);
- pci_free_consistent(nesdev->pcidev,
- nesqp->private_data_len + nesqp->ietf_frame_size,
- nesqp->ietf_frame, nesqp->ietf_frame_pbase);
- }
- }
-
- /* close the CM node down if it is still active */
- if (nesqp->cm_node) {
- nes_debug(NES_DBG_CM, "Call close API\n");
-
- g_cm_core->api->close(g_cm_core, nesqp->cm_node);
- }
-
- return ret;
-}
-
-
-/**
- * nes_accept
- */
-int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
-{
- u64 u64temp;
- struct ib_qp *ibqp;
- struct nes_qp *nesqp;
- struct nes_vnic *nesvnic;
- struct nes_device *nesdev;
- struct nes_cm_node *cm_node;
- struct nes_adapter *adapter;
- struct ib_qp_attr attr;
- struct iw_cm_event cm_event;
- struct nes_hw_qp_wqe *wqe;
- struct nes_v4_quad nes_quad;
- u32 crc_value;
- int ret;
- int passive_state;
- struct ib_mr *ibmr = NULL;
- struct nes_pd *nespd;
- u64 tagged_offset;
- u8 mpa_frame_offset = 0;
- struct ietf_mpa_v2 *mpa_v2_frame;
- u8 start_addr = 0;
- u8 *start_ptr = &start_addr;
- u8 **start_buff = &start_ptr;
- u16 buff_len = 0;
- struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
- struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;
-
- ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
- if (!ibqp)
- return -EINVAL;
-
- /* get all our handles */
- nesqp = to_nesqp(ibqp);
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- nesdev = nesvnic->nesdev;
- adapter = nesdev->nesadapter;
-
- cm_node = (struct nes_cm_node *)cm_id->provider_data;
- nes_debug(NES_DBG_CM, "nes_accept: cm_node= %p nesvnic=%p, netdev=%p,"
- "%s\n", cm_node, nesvnic, nesvnic->netdev,
- nesvnic->netdev->name);
-
- if (NES_CM_STATE_LISTENER_DESTROYED == cm_node->state) {
- if (cm_node->loopbackpartner)
- rem_ref_cm_node(cm_node->cm_core, cm_node->loopbackpartner);
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- return -EINVAL;
- }
-
- passive_state = atomic_add_return(1, &cm_node->passive_state);
- if (passive_state == NES_SEND_RESET_EVENT) {
- rem_ref_cm_node(cm_node->cm_core, cm_node);
- return -ECONNRESET;
- }
- /* associate the node with the QP */
- nesqp->cm_node = (void *)cm_node;
- cm_node->nesqp = nesqp;
-
-
- nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
- nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
- atomic_inc(&cm_accepts);
-
- nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
- netdev_refcnt_read(nesvnic->netdev));
-
- nesqp->ietf_frame_size = sizeof(struct ietf_mpa_v2);
- /* allocate the ietf frame and space for private data */
- nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev,
- nesqp->ietf_frame_size + conn_param->private_data_len,
- &nesqp->ietf_frame_pbase);
-
- if (!nesqp->ietf_frame) {
- nes_debug(NES_DBG_CM, "Unable to allocate memory for private data\n");
- return -ENOMEM;
- }
- mpa_v2_frame = (struct ietf_mpa_v2 *)nesqp->ietf_frame;
-
- if (cm_node->mpa_frame_rev == IETF_MPA_V1)
- mpa_frame_offset = 4;
-
- if (cm_node->mpa_frame_rev == IETF_MPA_V1 ||
- cm_node->mpav2_ird_ord == IETF_NO_IRD_ORD) {
- record_ird_ord(cm_node, (u16)conn_param->ird, (u16)conn_param->ord);
- }
-
- memcpy(mpa_v2_frame->priv_data, conn_param->private_data,
- conn_param->private_data_len);
-
- cm_build_mpa_frame(cm_node, start_buff, &buff_len, nesqp->ietf_frame, MPA_KEY_REPLY);
- nesqp->private_data_len = conn_param->private_data_len;
-
- /* setup our first outgoing iWarp send WQE (the IETF frame response) */
- wqe = &nesqp->hwqp.sq_vbase[0];
-
- if (raddr->sin_addr.s_addr != laddr->sin_addr.s_addr) {
- u64temp = (unsigned long)nesqp;
- nespd = nesqp->nespd;
- tagged_offset = (u64)(unsigned long)*start_buff;
- ibmr = nes_reg_phys_mr(&nespd->ibpd,
- nesqp->ietf_frame_pbase + mpa_frame_offset,
- buff_len, IB_ACCESS_LOCAL_WRITE,
- &tagged_offset);
- if (IS_ERR(ibmr)) {
- nes_debug(NES_DBG_CM, "Unable to register memory region"
- "for lSMM for cm_node = %p \n",
- cm_node);
- pci_free_consistent(nesdev->pcidev,
- nesqp->private_data_len + nesqp->ietf_frame_size,
- nesqp->ietf_frame, nesqp->ietf_frame_pbase);
- return PTR_ERR(ibmr);
- }
-
- ibmr->pd = &nespd->ibpd;
- ibmr->device = nespd->ibpd.device;
- nesqp->lsmm_mr = ibmr;
-
- u64temp |= NES_SW_CONTEXT_ALIGN >> 1;
- set_wqe_64bit_value(wqe->wqe_words,
- NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX,
- u64temp);
- wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
- cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING |
- NES_IWARP_SQ_WQE_WRPDU);
- wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] =
- cpu_to_le32(buff_len);
- set_wqe_64bit_value(wqe->wqe_words,
- NES_IWARP_SQ_WQE_FRAG0_LOW_IDX,
- (u64)(unsigned long)(*start_buff));
- wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] =
- cpu_to_le32(buff_len);
- wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = ibmr->lkey;
- if (nesqp->sq_kmapped) {
- nesqp->sq_kmapped = 0;
- kunmap(nesqp->page);
- }
-
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
- NES_QPCONTEXT_ORDIRD_WRPDU);
- } else {
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32(NES_QPCONTEXT_ORDIRD_WRPDU);
- }
- nesqp->skip_lsmm = 1;
-
- /* Cache the cm_id in the qp */
- nesqp->cm_id = cm_id;
- cm_node->cm_id = cm_id;
-
- /* nesqp->cm_node = (void *)cm_id->provider_data; */
- cm_id->provider_data = nesqp;
- nesqp->active_conn = 0;
-
- if (cm_node->state == NES_CM_STATE_TSA)
- nes_debug(NES_DBG_CM, "Already state = TSA for cm_node=%p\n",
- cm_node);
-
- nes_cm_init_tsa_conn(nesqp, cm_node);
-
- nesqp->nesqp_context->tcpPorts[0] =
- cpu_to_le16(cm_node->loc_port);
- nesqp->nesqp_context->tcpPorts[1] =
- cpu_to_le16(cm_node->rem_port);
-
- nesqp->nesqp_context->ip0 = cpu_to_le32(cm_node->rem_addr);
-
- nesqp->nesqp_context->misc2 |= cpu_to_le32(
- (u32)PCI_FUNC(nesdev->pcidev->devfn) <<
- NES_QPCONTEXT_MISC2_SRC_IP_SHIFT);
-
- nesqp->nesqp_context->arp_index_vlan |=
- cpu_to_le32(nes_arp_table(nesdev,
- le32_to_cpu(nesqp->nesqp_context->ip0), NULL,
- NES_ARP_RESOLVE) << 16);
-
- nesqp->nesqp_context->ts_val_delta = cpu_to_le32(
- jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW));
-
- nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id);
-
- nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(
- ((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT));
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32((u32)cm_node->ord_size);
-
- memset(&nes_quad, 0, sizeof(nes_quad));
- nes_quad.DstIpAdrIndex =
- cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
- nes_quad.SrcIpadr = htonl(cm_node->rem_addr);
- nes_quad.TcpPorts[0] = htons(cm_node->rem_port);
- nes_quad.TcpPorts[1] = htons(cm_node->loc_port);
-
- /* Produce hash key */
- crc_value = get_crc_value(&nes_quad);
- nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
- nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n",
- nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask);
-
- nesqp->hte_index &= adapter->hte_index_mask;
- nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
-
- cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node);
-
- nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = "
- "0x%08X:0x%04X, rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + "
- "private data length=%u.\n", nesqp->hwqp.qp_id,
- ntohl(raddr->sin_addr.s_addr), ntohs(raddr->sin_port),
- ntohl(laddr->sin_addr.s_addr), ntohs(laddr->sin_port),
- le32_to_cpu(nesqp->nesqp_context->rcv_nxt),
- le32_to_cpu(nesqp->nesqp_context->snd_nxt),
- buff_len);
-
- /* notify OF layer that accept event was successful */
- cm_id->add_ref(cm_id);
- nes_add_ref(&nesqp->ibqp);
-
- cm_event.event = IW_CM_EVENT_ESTABLISHED;
- cm_event.status = 0;
- cm_event.provider_data = (void *)nesqp;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
- cm_event.ird = cm_node->ird_size;
- cm_event.ord = cm_node->ord_size;
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- attr.qp_state = IB_QPS_RTS;
- nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL);
- if (cm_node->loopbackpartner) {
- cm_node->loopbackpartner->mpa_frame_size =
- nesqp->private_data_len;
- /* copy entire MPA frame to our cm_node's frame */
- memcpy(cm_node->loopbackpartner->mpa_frame_buf,
- conn_param->private_data, conn_param->private_data_len);
- create_event(cm_node->loopbackpartner, NES_CM_EVENT_CONNECTED);
- }
- if (ret)
- printk(KERN_ERR "%s[%u] OFA CM event_handler returned, "
- "ret=%d\n", __func__, __LINE__, ret);
-
- return 0;
-}
-
-
-/**
- * nes_reject
- */
-int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
-{
- struct nes_cm_node *cm_node;
- struct nes_cm_node *loopback;
- struct nes_cm_core *cm_core;
- u8 *start_buff;
-
- atomic_inc(&cm_rejects);
- cm_node = (struct nes_cm_node *)cm_id->provider_data;
- loopback = cm_node->loopbackpartner;
- cm_core = cm_node->cm_core;
- cm_node->cm_id = cm_id;
-
- if (pdata_len + sizeof(struct ietf_mpa_v2) > MAX_CM_BUFFER)
- return -EINVAL;
-
- if (loopback) {
- memcpy(&loopback->mpa_frame.priv_data, pdata, pdata_len);
- loopback->mpa_frame.priv_data_len = pdata_len;
- loopback->mpa_frame_size = pdata_len;
- } else {
- start_buff = &cm_node->mpa_frame_buf[0] + sizeof(struct ietf_mpa_v2);
- cm_node->mpa_frame_size = pdata_len;
- memcpy(start_buff, pdata, pdata_len);
- }
- return cm_core->api->reject(cm_core, cm_node);
-}
-
-
-/**
- * nes_connect
- * setup and launch cm connect node
- */
-int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
-{
- struct ib_qp *ibqp;
- struct nes_qp *nesqp;
- struct nes_vnic *nesvnic;
- struct nes_device *nesdev;
- struct nes_cm_node *cm_node;
- struct nes_cm_info cm_info;
- int apbvt_set = 0;
- struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
- struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;
-
- if (cm_id->remote_addr.ss_family != AF_INET)
- return -ENOSYS;
- ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
- if (!ibqp)
- return -EINVAL;
- nesqp = to_nesqp(ibqp);
- if (!nesqp)
- return -EINVAL;
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- if (!nesvnic)
- return -EINVAL;
- nesdev = nesvnic->nesdev;
- if (!nesdev)
- return -EINVAL;
-
- if (!laddr->sin_port || !raddr->sin_port)
- return -EINVAL;
-
- nes_debug(NES_DBG_CM, "QP%u, current IP = 0x%08X, Destination IP = "
- "0x%08X:0x%04X, local = 0x%08X:0x%04X.\n", nesqp->hwqp.qp_id,
- ntohl(nesvnic->local_ipaddr), ntohl(raddr->sin_addr.s_addr),
- ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
- ntohs(laddr->sin_port));
-
- atomic_inc(&cm_connects);
- nesqp->active_conn = 1;
-
- /* cache the cm_id in the qp */
- nesqp->cm_id = cm_id;
- cm_id->provider_data = nesqp;
- nesqp->private_data_len = conn_param->private_data_len;
-
- nes_debug(NES_DBG_CM, "requested ord = 0x%08X.\n", (u32)conn_param->ord);
- nes_debug(NES_DBG_CM, "mpa private data len =%u\n",
- conn_param->private_data_len);
-
- /* set up the connection params for the node */
- cm_info.loc_addr = ntohl(laddr->sin_addr.s_addr);
- cm_info.loc_port = ntohs(laddr->sin_port);
- cm_info.rem_addr = ntohl(raddr->sin_addr.s_addr);
- cm_info.rem_port = ntohs(raddr->sin_port);
- cm_info.cm_id = cm_id;
- cm_info.conn_type = NES_CM_IWARP_CONN_TYPE;
-
- if (laddr->sin_addr.s_addr != raddr->sin_addr.s_addr) {
- nes_manage_apbvt(nesvnic, cm_info.loc_port,
- PCI_FUNC(nesdev->pcidev->devfn),
- NES_MANAGE_APBVT_ADD);
- apbvt_set = 1;
- }
-
- cm_id->add_ref(cm_id);
-
- /* create a connect CM node connection */
- cm_node = g_cm_core->api->connect(g_cm_core, nesvnic,
- conn_param->private_data_len, (void *)conn_param->private_data,
- &cm_info);
- if (!cm_node) {
- if (apbvt_set)
- nes_manage_apbvt(nesvnic, cm_info.loc_port,
- PCI_FUNC(nesdev->pcidev->devfn),
- NES_MANAGE_APBVT_DEL);
-
- nes_debug(NES_DBG_NLMSG, "Delete loc_port = %04X\n",
- cm_info.loc_port);
- cm_id->rem_ref(cm_id);
- return -ENOMEM;
- }
-
- record_ird_ord(cm_node, (u16)conn_param->ird, (u16)conn_param->ord);
- if (cm_node->send_rdma0_op == SEND_RDMA_READ_ZERO &&
- cm_node->ord_size == 0)
- cm_node->ord_size = 1;
-
- cm_node->apbvt_set = apbvt_set;
- cm_node->tos = cm_id->tos;
- nesqp->cm_node = cm_node;
- cm_node->nesqp = nesqp;
- nes_add_ref(&nesqp->ibqp);
-
- return 0;
-}
-
-
-/**
- * nes_create_listen
- */
-int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
-{
- struct nes_vnic *nesvnic;
- struct nes_cm_listener *cm_node;
- struct nes_cm_info cm_info;
- int err;
- struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
-
- nes_debug(NES_DBG_CM, "cm_id = %p, local port = 0x%04X.\n",
- cm_id, ntohs(laddr->sin_port));
-
- if (cm_id->m_local_addr.ss_family != AF_INET)
- return -ENOSYS;
- nesvnic = to_nesvnic(cm_id->device);
- if (!nesvnic)
- return -EINVAL;
-
- nes_debug(NES_DBG_CM, "nesvnic=%p, netdev=%p, %s\n",
- nesvnic, nesvnic->netdev, nesvnic->netdev->name);
-
- nes_debug(NES_DBG_CM, "nesvnic->local_ipaddr=0x%08x, sin_addr.s_addr=0x%08x\n",
- nesvnic->local_ipaddr, laddr->sin_addr.s_addr);
-
- /* setup listen params in our api call struct */
- cm_info.loc_addr = ntohl(nesvnic->local_ipaddr);
- cm_info.loc_port = ntohs(laddr->sin_port);
- cm_info.backlog = backlog;
- cm_info.cm_id = cm_id;
-
- cm_info.conn_type = NES_CM_IWARP_CONN_TYPE;
-
- cm_node = g_cm_core->api->listen(g_cm_core, nesvnic, &cm_info);
- if (!cm_node) {
- printk(KERN_ERR "%s[%u] Error returned from listen API call\n",
- __func__, __LINE__);
- return -ENOMEM;
- }
-
- cm_id->provider_data = cm_node;
- cm_node->tos = cm_id->tos;
-
- if (!cm_node->reused_node) {
- err = nes_manage_apbvt(nesvnic, cm_node->loc_port,
- PCI_FUNC(nesvnic->nesdev->pcidev->devfn),
- NES_MANAGE_APBVT_ADD);
- if (err) {
- printk(KERN_ERR "nes_manage_apbvt call returned %d.\n",
- err);
- g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
- return err;
- }
- atomic_inc(&cm_listens_created);
- }
-
- cm_id->add_ref(cm_id);
- cm_id->provider_data = (void *)cm_node;
-
-
- return 0;
-}
-
-
-/**
- * nes_destroy_listen
- */
-int nes_destroy_listen(struct iw_cm_id *cm_id)
-{
- if (cm_id->provider_data)
- g_cm_core->api->stop_listener(g_cm_core, cm_id->provider_data);
- else
- nes_debug(NES_DBG_CM, "cm_id->provider_data was NULL\n");
-
- cm_id->rem_ref(cm_id);
-
- return 0;
-}
-
-
-/**
- * nes_cm_recv
- */
-int nes_cm_recv(struct sk_buff *skb, struct net_device *netdevice)
-{
- int rc = 0;
-
- cm_packets_received++;
- if ((g_cm_core) && (g_cm_core->api))
- rc = g_cm_core->api->recv_pkt(g_cm_core, netdev_priv(netdevice), skb);
- else
- nes_debug(NES_DBG_CM, "Unable to process packet for CM,"
- " cm is not setup properly.\n");
-
- return rc;
-}
-
-
-/**
- * nes_cm_start
- * Start and init a cm core module
- */
-int nes_cm_start(void)
-{
- nes_debug(NES_DBG_CM, "\n");
- /* create the primary CM core, pass this handle to subsequent core inits */
- g_cm_core = nes_cm_alloc_core();
- if (g_cm_core)
- return 0;
- else
- return -ENOMEM;
-}
-
-
-/**
- * nes_cm_stop
- * stop and dealloc all cm core instances
- */
-int nes_cm_stop(void)
-{
- g_cm_core->api->destroy_cm_core(g_cm_core);
- return 0;
-}
-
-
-/**
- * cm_event_connected
- * handle a connected event, setup QPs and HW
- */
-static void cm_event_connected(struct nes_cm_event *event)
-{
- struct nes_qp *nesqp;
- struct nes_vnic *nesvnic;
- struct nes_device *nesdev;
- struct nes_cm_node *cm_node;
- struct nes_adapter *nesadapter;
- struct ib_qp_attr attr;
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- struct nes_v4_quad nes_quad;
- u32 crc_value;
- int ret;
- struct sockaddr_in *laddr;
- struct sockaddr_in *raddr;
- struct sockaddr_in *cm_event_laddr;
-
- /* get all our handles */
- cm_node = event->cm_node;
- cm_id = cm_node->cm_id;
- nes_debug(NES_DBG_CM, "cm_event_connected - %p - cm_id = %p\n", cm_node, cm_id);
- nesqp = (struct nes_qp *)cm_id->provider_data;
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- nesdev = nesvnic->nesdev;
- nesadapter = nesdev->nesadapter;
- laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
- raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;
- cm_event_laddr = (struct sockaddr_in *)&cm_event.local_addr;
-
- if (nesqp->destroyed)
- return;
- atomic_inc(&cm_connecteds);
- nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
- " local port 0x%04X. jiffies = %lu.\n",
- nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
- ntohs(raddr->sin_port), ntohs(laddr->sin_port), jiffies);
-
- nes_cm_init_tsa_conn(nesqp, cm_node);
-
- /* set the QP tsa context */
- nesqp->nesqp_context->tcpPorts[0] =
- cpu_to_le16(cm_node->loc_port);
- nesqp->nesqp_context->tcpPorts[1] =
- cpu_to_le16(cm_node->rem_port);
- nesqp->nesqp_context->ip0 = cpu_to_le32(cm_node->rem_addr);
-
- nesqp->nesqp_context->misc2 |= cpu_to_le32(
- (u32)PCI_FUNC(nesdev->pcidev->devfn) <<
- NES_QPCONTEXT_MISC2_SRC_IP_SHIFT);
- nesqp->nesqp_context->arp_index_vlan |= cpu_to_le32(
- nes_arp_table(nesdev,
- le32_to_cpu(nesqp->nesqp_context->ip0),
- NULL, NES_ARP_RESOLVE) << 16);
- nesqp->nesqp_context->ts_val_delta = cpu_to_le32(
- jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW));
- nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id);
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32((u32)1 <<
- NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT);
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32((u32)cm_node->ord_size);
-
- /* Adjust tail for not having a LSMM */
- /*nesqp->hwqp.sq_tail = 1;*/
-
- build_rdma0_msg(cm_node, &nesqp);
-
- nes_write32(nesdev->regs + NES_WQE_ALLOC,
- (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id);
-
- memset(&nes_quad, 0, sizeof(nes_quad));
-
- nes_quad.DstIpAdrIndex =
- cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
- nes_quad.SrcIpadr = htonl(cm_node->rem_addr);
- nes_quad.TcpPorts[0] = htons(cm_node->rem_port);
- nes_quad.TcpPorts[1] = htons(cm_node->loc_port);
-
- /* Produce hash key */
- crc_value = get_crc_value(&nes_quad);
- nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
- nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n",
- nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask);
-
- nesqp->hte_index &= nesadapter->hte_index_mask;
- nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
-
- nesqp->ietf_frame = &cm_node->mpa_frame;
- nesqp->private_data_len = (u8)cm_node->mpa_frame_size;
- cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node);
-
- /* notify OF layer we successfully created the requested connection */
- cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
- cm_event.status = 0;
- cm_event.provider_data = cm_id->provider_data;
- cm_event_laddr->sin_family = AF_INET;
- cm_event_laddr->sin_port = laddr->sin_port;
- cm_event.remote_addr = cm_id->m_remote_addr;
-
- cm_event.private_data = (void *)event->cm_node->mpa_frame_buf;
- cm_event.private_data_len = (u8)event->cm_node->mpa_frame_size;
- cm_event.ird = cm_node->ird_size;
- cm_event.ord = cm_node->ord_size;
-
- cm_event_laddr->sin_addr.s_addr = htonl(event->cm_info.loc_addr);
- ret = cm_id->event_handler(cm_id, &cm_event);
- nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
-
- if (ret)
- printk(KERN_ERR "%s[%u] OFA CM event_handler returned, "
- "ret=%d\n", __func__, __LINE__, ret);
- attr.qp_state = IB_QPS_RTS;
- nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL);
-
- nes_debug(NES_DBG_CM, "Exiting connect thread for QP%u. jiffies = "
- "%lu\n", nesqp->hwqp.qp_id, jiffies);
-
- return;
-}
-
-
-/**
- * cm_event_connect_error
- */
-static void cm_event_connect_error(struct nes_cm_event *event)
-{
- struct nes_qp *nesqp;
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- /* struct nes_cm_info cm_info; */
- int ret;
-
- if (!event->cm_node)
- return;
-
- cm_id = event->cm_node->cm_id;
- if (!cm_id)
- return;
-
- nes_debug(NES_DBG_CM, "cm_node=%p, cm_id=%p\n", event->cm_node, cm_id);
- nesqp = cm_id->provider_data;
-
- if (!nesqp)
- return;
-
- /* notify OF layer about this connection error event */
- /* cm_id->rem_ref(cm_id); */
- nesqp->cm_id = NULL;
- cm_id->provider_data = NULL;
- cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
- cm_event.status = -ECONNRESET;
- cm_event.provider_data = cm_id->provider_data;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
-
-#ifdef CONFIG_INFINIBAND_NES_DEBUG
- {
- struct sockaddr_in *cm_event_laddr = (struct sockaddr_in *)
- &cm_event.local_addr;
- struct sockaddr_in *cm_event_raddr = (struct sockaddr_in *)
- &cm_event.remote_addr;
- nes_debug(NES_DBG_CM, "call CM_EVENT REJECTED, local_addr=%08x, remote_addr=%08x\n",
- cm_event_laddr->sin_addr.s_addr, cm_event_raddr->sin_addr.s_addr);
- }
-#endif
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
- if (ret)
- printk(KERN_ERR "%s[%u] OFA CM event_handler returned, "
- "ret=%d\n", __func__, __LINE__, ret);
- cm_id->rem_ref(cm_id);
-
- rem_ref_cm_node(event->cm_node->cm_core, event->cm_node);
- return;
-}
-
-
-/**
- * cm_event_reset
- */
-static void cm_event_reset(struct nes_cm_event *event)
-{
- struct nes_qp *nesqp;
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- /* struct nes_cm_info cm_info; */
- int ret;
-
- if (!event->cm_node)
- return;
-
- if (!event->cm_node->cm_id)
- return;
-
- cm_id = event->cm_node->cm_id;
-
- nes_debug(NES_DBG_CM, "%p - cm_id = %p\n", event->cm_node, cm_id);
- nesqp = cm_id->provider_data;
- if (!nesqp)
- return;
-
- nesqp->cm_id = NULL;
- /* cm_id->provider_data = NULL; */
- cm_event.event = IW_CM_EVENT_DISCONNECT;
- cm_event.status = -ECONNRESET;
- cm_event.provider_data = cm_id->provider_data;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
-
- cm_id->add_ref(cm_id);
- ret = cm_id->event_handler(cm_id, &cm_event);
- atomic_inc(&cm_closes);
- cm_event.event = IW_CM_EVENT_CLOSE;
- cm_event.status = 0;
- cm_event.provider_data = cm_id->provider_data;
- cm_event.local_addr = cm_id->m_local_addr;
- cm_event.remote_addr = cm_id->m_remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
- nes_debug(NES_DBG_CM, "NODE %p Generating CLOSE\n", event->cm_node);
- ret = cm_id->event_handler(cm_id, &cm_event);
-
- nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
-
-
- /* notify OF layer about this connection error event */
- cm_id->rem_ref(cm_id);
-
- return;
-}
-
-
-/**
- * cm_event_mpa_req
- */
-static void cm_event_mpa_req(struct nes_cm_event *event)
-{
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- int ret;
- struct nes_cm_node *cm_node;
- struct sockaddr_in *cm_event_laddr = (struct sockaddr_in *)
- &cm_event.local_addr;
- struct sockaddr_in *cm_event_raddr = (struct sockaddr_in *)
- &cm_event.remote_addr;
-
- cm_node = event->cm_node;
- if (!cm_node)
- return;
- cm_id = cm_node->cm_id;
-
- atomic_inc(&cm_connect_reqs);
- nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
- cm_node, cm_id, jiffies);
-
- cm_event.event = IW_CM_EVENT_CONNECT_REQUEST;
- cm_event.status = 0;
- cm_event.provider_data = (void *)cm_node;
-
- cm_event_laddr->sin_family = AF_INET;
- cm_event_laddr->sin_port = htons(event->cm_info.loc_port);
- cm_event_laddr->sin_addr.s_addr = htonl(event->cm_info.loc_addr);
-
- cm_event_raddr->sin_family = AF_INET;
- cm_event_raddr->sin_port = htons(event->cm_info.rem_port);
- cm_event_raddr->sin_addr.s_addr = htonl(event->cm_info.rem_addr);
- cm_event.private_data = cm_node->mpa_frame_buf;
- cm_event.private_data_len = (u8)cm_node->mpa_frame_size;
- if (cm_node->mpa_frame_rev == IETF_MPA_V1) {
- cm_event.ird = NES_MAX_IRD;
- cm_event.ord = NES_MAX_ORD;
- } else {
- cm_event.ird = cm_node->ird_size;
- cm_event.ord = cm_node->ord_size;
- }
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- if (ret)
- printk(KERN_ERR "%s[%u] OFA CM event_handler returned, ret=%d\n",
- __func__, __LINE__, ret);
- return;
-}
-
-
-static void cm_event_mpa_reject(struct nes_cm_event *event)
-{
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- struct nes_cm_node *cm_node;
- int ret;
- struct sockaddr_in *cm_event_laddr = (struct sockaddr_in *)
- &cm_event.local_addr;
- struct sockaddr_in *cm_event_raddr = (struct sockaddr_in *)
- &cm_event.remote_addr;
-
- cm_node = event->cm_node;
- if (!cm_node)
- return;
- cm_id = cm_node->cm_id;
-
- atomic_inc(&cm_connect_reqs);
- nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
- cm_node, cm_id, jiffies);
-
- cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
- cm_event.status = -ECONNREFUSED;
- cm_event.provider_data = cm_id->provider_data;
-
- cm_event_laddr->sin_family = AF_INET;
- cm_event_laddr->sin_port = htons(event->cm_info.loc_port);
- cm_event_laddr->sin_addr.s_addr = htonl(event->cm_info.loc_addr);
-
- cm_event_raddr->sin_family = AF_INET;
- cm_event_raddr->sin_port = htons(event->cm_info.rem_port);
- cm_event_raddr->sin_addr.s_addr = htonl(event->cm_info.rem_addr);
-
- cm_event.private_data = cm_node->mpa_frame_buf;
- cm_event.private_data_len = (u8)cm_node->mpa_frame_size;
-
- nes_debug(NES_DBG_CM, "call CM_EVENT_MPA_REJECTED, local_addr=%08x, "
- "remove_addr=%08x\n",
- cm_event_laddr->sin_addr.s_addr,
- cm_event_raddr->sin_addr.s_addr);
-
- ret = cm_id->event_handler(cm_id, &cm_event);
- if (ret)
- printk(KERN_ERR "%s[%u] OFA CM event_handler returned, ret=%d\n",
- __func__, __LINE__, ret);
-
- return;
-}
-
-
-static void nes_cm_event_handler(struct work_struct *);
-
-/**
- * nes_cm_post_event
- * post an event to the cm event handler
- */
-static int nes_cm_post_event(struct nes_cm_event *event)
-{
- atomic_inc(&event->cm_node->cm_core->events_posted);
- add_ref_cm_node(event->cm_node);
- event->cm_info.cm_id->add_ref(event->cm_info.cm_id);
- INIT_WORK(&event->event_work, nes_cm_event_handler);
- nes_debug(NES_DBG_CM, "cm_node=%p queue_work, event=%p\n",
- event->cm_node, event);
-
- queue_work(event->cm_node->cm_core->event_wq, &event->event_work);
-
- nes_debug(NES_DBG_CM, "Exit\n");
- return 0;
-}
-
-
-/**
- * nes_cm_event_handler
- * worker function to handle cm events
- * will free instance of nes_cm_event
- */
-static void nes_cm_event_handler(struct work_struct *work)
-{
- struct nes_cm_event *event = container_of(work, struct nes_cm_event,
- event_work);
- struct nes_cm_core *cm_core;
-
- if ((!event) || (!event->cm_node) || (!event->cm_node->cm_core))
- return;
-
- cm_core = event->cm_node->cm_core;
- nes_debug(NES_DBG_CM, "event=%p, event->type=%u, events posted=%u\n",
- event, event->type, atomic_read(&cm_core->events_posted));
-
- switch (event->type) {
- case NES_CM_EVENT_MPA_REQ:
- cm_event_mpa_req(event);
- nes_debug(NES_DBG_CM, "cm_node=%p CM Event: MPA REQUEST\n",
- event->cm_node);
- break;
- case NES_CM_EVENT_RESET:
- nes_debug(NES_DBG_CM, "cm_node = %p CM Event: RESET\n",
- event->cm_node);
- cm_event_reset(event);
- break;
- case NES_CM_EVENT_CONNECTED:
- if ((!event->cm_node->cm_id) ||
- (event->cm_node->state != NES_CM_STATE_TSA))
- break;
- cm_event_connected(event);
- nes_debug(NES_DBG_CM, "CM Event: CONNECTED\n");
- break;
- case NES_CM_EVENT_MPA_REJECT:
- if ((!event->cm_node->cm_id) ||
- (event->cm_node->state == NES_CM_STATE_TSA))
- break;
- cm_event_mpa_reject(event);
- nes_debug(NES_DBG_CM, "CM Event: REJECT\n");
- break;
-
- case NES_CM_EVENT_ABORTED:
- if ((!event->cm_node->cm_id) ||
- (event->cm_node->state == NES_CM_STATE_TSA))
- break;
- cm_event_connect_error(event);
- nes_debug(NES_DBG_CM, "CM Event: ABORTED\n");
- break;
- case NES_CM_EVENT_DROPPED_PKT:
- nes_debug(NES_DBG_CM, "CM Event: DROPPED PKT\n");
- break;
- default:
- nes_debug(NES_DBG_CM, "CM Event: UNKNOWN EVENT TYPE\n");
- break;
- }
-
- atomic_dec(&cm_core->events_posted);
- event->cm_info.cm_id->rem_ref(event->cm_info.cm_id);
- rem_ref_cm_node(cm_core, event->cm_node);
- kfree(event);
-
- return;
-}
diff --git a/drivers/infiniband/hw/nes/nes_cm.h b/drivers/infiniband/hw/nes/nes_cm.h
deleted file mode 100644
index b9cc02b4e8d5..000000000000
--- a/drivers/infiniband/hw/nes/nes_cm.h
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * Copyright (c) 2006 - 2014 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifndef NES_CM_H
-#define NES_CM_H
-
-#define QUEUE_EVENTS
-
-#define NES_MANAGE_APBVT_DEL 0
-#define NES_MANAGE_APBVT_ADD 1
-
-#define NES_MPA_REQUEST_ACCEPT 1
-#define NES_MPA_REQUEST_REJECT 2
-
-/* IETF MPA -- defines, enums, structs */
-#define IEFT_MPA_KEY_REQ "MPA ID Req Frame"
-#define IEFT_MPA_KEY_REP "MPA ID Rep Frame"
-#define IETF_MPA_KEY_SIZE 16
-#define IETF_MPA_VERSION 1
-#define IETF_MAX_PRIV_DATA_LEN 512
-#define IETF_MPA_FRAME_SIZE 20
-#define IETF_RTR_MSG_SIZE 4
-#define IETF_MPA_V2_FLAG 0x10
-
-/* IETF RTR MSG Fields */
-#define IETF_PEER_TO_PEER 0x8000
-#define IETF_FLPDU_ZERO_LEN 0x4000
-#define IETF_RDMA0_WRITE 0x8000
-#define IETF_RDMA0_READ 0x4000
-#define IETF_NO_IRD_ORD 0x3FFF
-#define NES_MAX_IRD 0x40
-#define NES_MAX_ORD 0x7F
-
-enum ietf_mpa_flags {
- IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */
- IETF_MPA_FLAGS_CRC = 0x40, /* receive Markers */
- IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */
-};
-
-struct ietf_mpa_v1 {
- u8 key[IETF_MPA_KEY_SIZE];
- u8 flags;
- u8 rev;
- __be16 priv_data_len;
- u8 priv_data[0];
-};
-
-#define ietf_mpa_req_resp_frame ietf_mpa_frame
-
-struct ietf_rtr_msg {
- __be16 ctrl_ird;
- __be16 ctrl_ord;
-};
-
-struct ietf_mpa_v2 {
- u8 key[IETF_MPA_KEY_SIZE];
- u8 flags;
- u8 rev;
- __be16 priv_data_len;
- struct ietf_rtr_msg rtr_msg;
- u8 priv_data[0];
-};
-
-struct nes_v4_quad {
- u32 rsvd0;
- __le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */
- __be32 SrcIpadr;
- __be16 TcpPorts[2]; /* src is low, dest is high */
-};
-
-struct nes_cm_node;
-enum nes_timer_type {
- NES_TIMER_TYPE_SEND,
- NES_TIMER_TYPE_RECV,
- NES_TIMER_NODE_CLEANUP,
- NES_TIMER_TYPE_CLOSE,
-};
-
-#define NES_PASSIVE_STATE_INDICATED 0
-#define NES_DO_NOT_SEND_RESET_EVENT 1
-#define NES_SEND_RESET_EVENT 2
-
-#define MAX_NES_IFS 4
-
-#define SET_ACK 1
-#define SET_SYN 2
-#define SET_FIN 4
-#define SET_RST 8
-
-#define TCP_OPTIONS_PADDING 3
-
-struct option_base {
- u8 optionnum;
- u8 length;
-};
-
-enum option_numbers {
- OPTION_NUMBER_END,
- OPTION_NUMBER_NONE,
- OPTION_NUMBER_MSS,
- OPTION_NUMBER_WINDOW_SCALE,
- OPTION_NUMBER_SACK_PERM,
- OPTION_NUMBER_SACK,
- OPTION_NUMBER_WRITE0 = 0xbc
-};
-
-struct option_mss {
- u8 optionnum;
- u8 length;
- __be16 mss;
-};
-
-struct option_windowscale {
- u8 optionnum;
- u8 length;
- u8 shiftcount;
-};
-
-union all_known_options {
- char as_end;
- struct option_base as_base;
- struct option_mss as_mss;
- struct option_windowscale as_windowscale;
-};
-
-struct nes_timer_entry {
- struct list_head list;
- unsigned long timetosend; /* jiffies */
- struct sk_buff *skb;
- u32 type;
- u32 retrycount;
- u32 retranscount;
- u32 context;
- u32 seq_num;
- u32 send_retrans;
- int close_when_complete;
- struct net_device *netdev;
-};
-
-#define NES_DEFAULT_RETRYS 64
-#define NES_DEFAULT_RETRANS 8
-#ifdef CONFIG_INFINIBAND_NES_DEBUG
-#define NES_RETRY_TIMEOUT (1000*HZ/1000)
-#else
-#define NES_RETRY_TIMEOUT (3000*HZ/1000)
-#endif
-#define NES_SHORT_TIME (10)
-#define NES_LONG_TIME (2000*HZ/1000)
-#define NES_MAX_TIMEOUT ((unsigned long) (12*HZ))
-
-#define NES_CM_HASHTABLE_SIZE 1024
-#define NES_CM_TCP_TIMER_INTERVAL 3000
-#define NES_CM_DEFAULT_MTU 1540
-#define NES_CM_DEFAULT_FRAME_CNT 10
-#define NES_CM_THREAD_STACK_SIZE 256
-#define NES_CM_DEFAULT_RCV_WND 64240 // before we know that window scaling is allowed
-#define NES_CM_DEFAULT_RCV_WND_SCALED 256960 // after we know that window scaling is allowed
-#define NES_CM_DEFAULT_RCV_WND_SCALE 2
-#define NES_CM_DEFAULT_FREE_PKTS 0x000A
-#define NES_CM_FREE_PKT_LO_WATERMARK 2
-
-#define NES_CM_DEFAULT_MSS 536
-
-#define NES_CM_DEF_SEQ 0x159bf75f
-#define NES_CM_DEF_LOCAL_ID 0x3b47
-
-#define NES_CM_DEF_SEQ2 0x18ed5740
-#define NES_CM_DEF_LOCAL_ID2 0xb807
-#define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_RTR_MSG_SIZE + IETF_MAX_PRIV_DATA_LEN)
-
-typedef u32 nes_addr_t;
-
-#define nes_cm_tsa_context nes_qp_context
-
-struct nes_qp;
-
-/* cm node transition states */
-enum nes_cm_node_state {
- NES_CM_STATE_UNKNOWN,
- NES_CM_STATE_INITED,
- NES_CM_STATE_LISTENING,
- NES_CM_STATE_SYN_RCVD,
- NES_CM_STATE_SYN_SENT,
- NES_CM_STATE_ONE_SIDE_ESTABLISHED,
- NES_CM_STATE_ESTABLISHED,
- NES_CM_STATE_ACCEPTING,
- NES_CM_STATE_MPAREQ_SENT,
- NES_CM_STATE_MPAREQ_RCVD,
- NES_CM_STATE_MPAREJ_RCVD,
- NES_CM_STATE_TSA,
- NES_CM_STATE_FIN_WAIT1,
- NES_CM_STATE_FIN_WAIT2,
- NES_CM_STATE_CLOSE_WAIT,
- NES_CM_STATE_TIME_WAIT,
- NES_CM_STATE_LAST_ACK,
- NES_CM_STATE_CLOSING,
- NES_CM_STATE_LISTENER_DESTROYED,
- NES_CM_STATE_CLOSED
-};
-
-enum mpa_frame_version {
- IETF_MPA_V1 = 1,
- IETF_MPA_V2 = 2
-};
-
-enum mpa_frame_key {
- MPA_KEY_REQUEST,
- MPA_KEY_REPLY
-};
-
-enum send_rdma0 {
- SEND_RDMA_READ_ZERO = 1,
- SEND_RDMA_WRITE_ZERO = 2
-};
-
-enum nes_tcpip_pkt_type {
- NES_PKT_TYPE_UNKNOWN,
- NES_PKT_TYPE_SYN,
- NES_PKT_TYPE_SYNACK,
- NES_PKT_TYPE_ACK,
- NES_PKT_TYPE_FIN,
- NES_PKT_TYPE_RST
-};
-
-
-/* type of nes connection */
-enum nes_cm_conn_type {
- NES_CM_IWARP_CONN_TYPE,
-};
-
-/* CM context params */
-struct nes_cm_tcp_context {
- u8 client;
-
- u32 loc_seq_num;
- u32 loc_ack_num;
- u32 rem_ack_num;
- u32 rcv_nxt;
-
- u32 loc_id;
- u32 rem_id;
-
- u32 snd_wnd;
- u32 max_snd_wnd;
-
- u32 rcv_wnd;
- u32 mss;
- u8 snd_wscale;
- u8 rcv_wscale;
-
- struct nes_cm_tsa_context tsa_cntxt;
-};
-
-
-enum nes_cm_listener_state {
- NES_CM_LISTENER_PASSIVE_STATE = 1,
- NES_CM_LISTENER_ACTIVE_STATE = 2,
- NES_CM_LISTENER_EITHER_STATE = 3
-};
-
-struct nes_cm_listener {
- struct list_head list;
- struct nes_cm_core *cm_core;
- u8 loc_mac[ETH_ALEN];
- nes_addr_t loc_addr;
- u16 loc_port;
- struct iw_cm_id *cm_id;
- enum nes_cm_conn_type conn_type;
- atomic_t ref_count;
- struct nes_vnic *nesvnic;
- atomic_t pend_accepts_cnt;
- int backlog;
- enum nes_cm_listener_state listener_state;
- u32 reused_node;
- u8 tos;
-};
-
-/* per connection node and node state information */
-struct nes_cm_node {
- nes_addr_t loc_addr, rem_addr;
- u16 loc_port, rem_port;
-
- u8 loc_mac[ETH_ALEN];
- u8 rem_mac[ETH_ALEN];
-
- enum nes_cm_node_state state;
- struct nes_cm_tcp_context tcp_cntxt;
- struct nes_cm_core *cm_core;
- struct sk_buff_head resend_list;
- atomic_t ref_count;
- struct net_device *netdev;
-
- struct nes_cm_node *loopbackpartner;
-
- struct nes_timer_entry *send_entry;
- struct nes_timer_entry *recv_entry;
- spinlock_t retrans_list_lock;
- enum send_rdma0 send_rdma0_op;
-
- union {
- struct ietf_mpa_v1 mpa_frame;
- struct ietf_mpa_v2 mpa_v2_frame;
- u8 mpa_frame_buf[MAX_CM_BUFFER];
- };
- enum mpa_frame_version mpa_frame_rev;
- u16 ird_size;
- u16 ord_size;
- u16 mpav2_ird_ord;
-
- u16 mpa_frame_size;
- struct iw_cm_id *cm_id;
- struct list_head list;
- bool accelerated;
- struct nes_cm_listener *listener;
- enum nes_cm_conn_type conn_type;
- struct nes_vnic *nesvnic;
- int apbvt_set;
- int accept_pend;
- struct list_head timer_entry;
- struct list_head reset_entry;
- struct nes_qp *nesqp;
- atomic_t passive_state;
- u8 tos;
-};
-
-/* structure for client or CM to fill when making CM api calls. */
-/* - only need to set relevant data, based on op. */
-struct nes_cm_info {
- union {
- struct iw_cm_id *cm_id;
- struct net_device *netdev;
- };
-
- u16 loc_port;
- u16 rem_port;
- nes_addr_t loc_addr;
- nes_addr_t rem_addr;
- enum nes_cm_conn_type conn_type;
- int backlog;
-};
-
-/* CM event codes */
-enum nes_cm_event_type {
- NES_CM_EVENT_UNKNOWN,
- NES_CM_EVENT_ESTABLISHED,
- NES_CM_EVENT_MPA_REQ,
- NES_CM_EVENT_MPA_CONNECT,
- NES_CM_EVENT_MPA_ACCEPT,
- NES_CM_EVENT_MPA_REJECT,
- NES_CM_EVENT_MPA_ESTABLISHED,
- NES_CM_EVENT_CONNECTED,
- NES_CM_EVENT_CLOSED,
- NES_CM_EVENT_RESET,
- NES_CM_EVENT_DROPPED_PKT,
- NES_CM_EVENT_CLOSE_IMMED,
- NES_CM_EVENT_CLOSE_HARD,
- NES_CM_EVENT_CLOSE_CLEAN,
- NES_CM_EVENT_ABORTED,
- NES_CM_EVENT_SEND_FIRST
-};
-
-/* event to post to CM event handler */
-struct nes_cm_event {
- enum nes_cm_event_type type;
-
- struct nes_cm_info cm_info;
- struct work_struct event_work;
- struct nes_cm_node *cm_node;
-};
-
-struct nes_cm_core {
- enum nes_cm_node_state state;
-
- atomic_t listen_node_cnt;
- struct nes_cm_node listen_list;
- spinlock_t listen_list_lock;
-
- u32 mtu;
- u32 free_tx_pkt_max;
- u32 rx_pkt_posted;
- atomic_t ht_node_cnt;
- struct list_head connected_nodes;
- /* struct list_head hashtable[NES_CM_HASHTABLE_SIZE]; */
- spinlock_t ht_lock;
-
- struct timer_list tcp_timer;
-
- const struct nes_cm_ops *api;
-
- int (*post_event)(struct nes_cm_event *event);
- atomic_t events_posted;
- struct workqueue_struct *event_wq;
- struct workqueue_struct *disconn_wq;
-
- atomic_t node_cnt;
- u64 aborted_connects;
- u32 options;
-
- struct nes_cm_node *current_listen_node;
-};
-
-
-#define NES_CM_SET_PKT_SIZE (1 << 1)
-#define NES_CM_SET_FREE_PKT_Q_SIZE (1 << 2)
-
-/* CM ops/API for client interface */
-struct nes_cm_ops {
- int (*accelerated)(struct nes_cm_core *, struct nes_cm_node *);
- struct nes_cm_listener * (*listen)(struct nes_cm_core *, struct nes_vnic *,
- struct nes_cm_info *);
- int (*stop_listener)(struct nes_cm_core *, struct nes_cm_listener *);
- struct nes_cm_node * (*connect)(struct nes_cm_core *,
- struct nes_vnic *, u16, void *,
- struct nes_cm_info *);
- int (*close)(struct nes_cm_core *, struct nes_cm_node *);
- int (*accept)(struct nes_cm_core *, struct nes_cm_node *);
- int (*reject)(struct nes_cm_core *, struct nes_cm_node *);
- int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *,
- struct sk_buff *);
- int (*destroy_cm_core)(struct nes_cm_core *);
- int (*get)(struct nes_cm_core *);
- int (*set)(struct nes_cm_core *, u32, u32);
-};
-
-int schedule_nes_timer(struct nes_cm_node *, struct sk_buff *,
- enum nes_timer_type, int, int);
-
-int nes_accept(struct iw_cm_id *, struct iw_cm_conn_param *);
-int nes_reject(struct iw_cm_id *, const void *, u8);
-int nes_connect(struct iw_cm_id *, struct iw_cm_conn_param *);
-int nes_create_listen(struct iw_cm_id *, int);
-int nes_destroy_listen(struct iw_cm_id *);
-
-int nes_cm_recv(struct sk_buff *, struct net_device *);
-int nes_cm_start(void);
-int nes_cm_stop(void);
-int nes_add_ref_cm_node(struct nes_cm_node *cm_node);
-int nes_rem_ref_cm_node(struct nes_cm_node *cm_node);
-
-#endif /* NES_CM_H */
diff --git a/drivers/infiniband/hw/nes/nes_context.h b/drivers/infiniband/hw/nes/nes_context.h
deleted file mode 100644
index a69eef16d72d..000000000000
--- a/drivers/infiniband/hw/nes/nes_context.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef NES_CONTEXT_H
-#define NES_CONTEXT_H
-
-struct nes_qp_context {
- __le32 misc;
- __le32 cqs;
- __le32 sq_addr_low;
- __le32 sq_addr_high;
- __le32 rq_addr_low;
- __le32 rq_addr_high;
- __le32 misc2;
- __le16 tcpPorts[2];
- __le32 ip0;
- __le32 ip1;
- __le32 ip2;
- __le32 ip3;
- __le32 mss;
- __le32 arp_index_vlan;
- __le32 tcp_state_flow_label;
- __le32 pd_index_wscale;
- __le32 keepalive;
- u32 ts_recent;
- u32 ts_age;
- __le32 snd_nxt;
- __le32 snd_wnd;
- __le32 rcv_nxt;
- __le32 rcv_wnd;
- __le32 snd_max;
- __le32 snd_una;
- u32 srtt;
- __le32 rttvar;
- __le32 ssthresh;
- __le32 cwnd;
- __le32 snd_wl1;
- __le32 snd_wl2;
- __le32 max_snd_wnd;
- __le32 ts_val_delta;
- u32 retransmit;
- u32 probe_cnt;
- u32 hte_index;
- __le32 q2_addr_low;
- __le32 q2_addr_high;
- __le32 ird_index;
- u32 Rsvd3;
- __le32 ird_ord_sizes;
- u32 mrkr_offset;
- __le32 aeq_token_low;
- __le32 aeq_token_high;
-};
-
-/* QP Context Misc Field */
-
-#define NES_QPCONTEXT_MISC_IWARP_VER_MASK 0x00000003
-#define NES_QPCONTEXT_MISC_IWARP_VER_SHIFT 0
-#define NES_QPCONTEXT_MISC_EFB_SIZE_MASK 0x000000C0
-#define NES_QPCONTEXT_MISC_EFB_SIZE_SHIFT 6
-#define NES_QPCONTEXT_MISC_RQ_SIZE_MASK 0x00000300
-#define NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT 8
-#define NES_QPCONTEXT_MISC_SQ_SIZE_MASK 0x00000c00
-#define NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT 10
-#define NES_QPCONTEXT_MISC_PCI_FCN_MASK 0x00007000
-#define NES_QPCONTEXT_MISC_PCI_FCN_SHIFT 12
-#define NES_QPCONTEXT_MISC_DUP_ACKS_MASK 0x00070000
-#define NES_QPCONTEXT_MISC_DUP_ACKS_SHIFT 16
-
-enum nes_qp_context_misc_bits {
- NES_QPCONTEXT_MISC_RX_WQE_SIZE = 0x00000004,
- NES_QPCONTEXT_MISC_IPV4 = 0x00000008,
- NES_QPCONTEXT_MISC_DO_NOT_FRAG = 0x00000010,
- NES_QPCONTEXT_MISC_INSERT_VLAN = 0x00000020,
- NES_QPCONTEXT_MISC_DROS = 0x00008000,
- NES_QPCONTEXT_MISC_WSCALE = 0x00080000,
- NES_QPCONTEXT_MISC_KEEPALIVE = 0x00100000,
- NES_QPCONTEXT_MISC_TIMESTAMP = 0x00200000,
- NES_QPCONTEXT_MISC_SACK = 0x00400000,
- NES_QPCONTEXT_MISC_RDMA_WRITE_EN = 0x00800000,
- NES_QPCONTEXT_MISC_RDMA_READ_EN = 0x01000000,
- NES_QPCONTEXT_MISC_WBIND_EN = 0x10000000,
- NES_QPCONTEXT_MISC_FAST_REGISTER_EN = 0x20000000,
- NES_QPCONTEXT_MISC_PRIV_EN = 0x40000000,
- NES_QPCONTEXT_MISC_NO_NAGLE = 0x80000000
-};
-
-enum nes_qp_acc_wq_sizes {
- HCONTEXT_TSA_WQ_SIZE_4 = 0,
- HCONTEXT_TSA_WQ_SIZE_32 = 1,
- HCONTEXT_TSA_WQ_SIZE_128 = 2,
- HCONTEXT_TSA_WQ_SIZE_512 = 3
-};
-
-/* QP Context Misc2 Fields */
-#define NES_QPCONTEXT_MISC2_TTL_MASK 0x000000ff
-#define NES_QPCONTEXT_MISC2_TTL_SHIFT 0
-#define NES_QPCONTEXT_MISC2_HOP_LIMIT_MASK 0x000000ff
-#define NES_QPCONTEXT_MISC2_HOP_LIMIT_SHIFT 0
-#define NES_QPCONTEXT_MISC2_LIMIT_MASK 0x00000300
-#define NES_QPCONTEXT_MISC2_LIMIT_SHIFT 8
-#define NES_QPCONTEXT_MISC2_NIC_INDEX_MASK 0x0000fc00
-#define NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT 10
-#define NES_QPCONTEXT_MISC2_SRC_IP_MASK 0x001f0000
-#define NES_QPCONTEXT_MISC2_SRC_IP_SHIFT 16
-#define NES_QPCONTEXT_MISC2_TOS_MASK 0xff000000
-#define NES_QPCONTEXT_MISC2_TOS_SHIFT 24
-#define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_MASK 0xff000000
-#define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_SHIFT 24
-
-/* QP Context Tcp State/Flow Label Fields */
-#define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_MASK 0x000fffff
-#define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_SHIFT 0
-#define NES_QPCONTEXT_TCPFLOW_TCP_STATE_MASK 0xf0000000
-#define NES_QPCONTEXT_TCPFLOW_TCP_STATE_SHIFT 28
-
-enum nes_qp_tcp_state {
- NES_QPCONTEXT_TCPSTATE_CLOSED = 1,
- NES_QPCONTEXT_TCPSTATE_EST = 5,
- NES_QPCONTEXT_TCPSTATE_TIME_WAIT = 11,
-};
-
-/* QP Context PD Index/wscale Fields */
-#define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_MASK 0x0000000f
-#define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_SHIFT 0
-#define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_MASK 0x00000f00
-#define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_SHIFT 8
-#define NES_QPCONTEXT_PDWSCALE_PDINDEX_MASK 0xffff0000
-#define NES_QPCONTEXT_PDWSCALE_PDINDEX_SHIFT 16
-
-/* QP Context Keepalive Fields */
-#define NES_QPCONTEXT_KEEPALIVE_DELTA_MASK 0x0000ffff
-#define NES_QPCONTEXT_KEEPALIVE_DELTA_SHIFT 0
-#define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_MASK 0x00ff0000
-#define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_SHIFT 16
-#define NES_QPCONTEXT_KEEPALIVE_INTV_MASK 0xff000000
-#define NES_QPCONTEXT_KEEPALIVE_INTV_SHIFT 24
-
-/* QP Context ORD/IRD Fields */
-#define NES_QPCONTEXT_ORDIRD_ORDSIZE_MASK 0x0000007f
-#define NES_QPCONTEXT_ORDIRD_ORDSIZE_SHIFT 0
-#define NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK 0x00030000
-#define NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT 16
-#define NES_QPCONTEXT_ORDIRD_IWARP_MODE_MASK 0x30000000
-#define NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT 28
-
-enum nes_ord_ird_bits {
- NES_QPCONTEXT_ORDIRD_WRPDU = 0x02000000,
- NES_QPCONTEXT_ORDIRD_LSMM_PRESENT = 0x04000000,
- NES_QPCONTEXT_ORDIRD_ALSMM = 0x08000000,
- NES_QPCONTEXT_ORDIRD_AAH = 0x40000000,
- NES_QPCONTEXT_ORDIRD_RNMC = 0x80000000
-};
-
-enum nes_iwarp_qp_state {
- NES_QPCONTEXT_IWARP_STATE_NONEXIST = 0,
- NES_QPCONTEXT_IWARP_STATE_IDLE = 1,
- NES_QPCONTEXT_IWARP_STATE_RTS = 2,
- NES_QPCONTEXT_IWARP_STATE_CLOSING = 3,
- NES_QPCONTEXT_IWARP_STATE_TERMINATE = 5,
- NES_QPCONTEXT_IWARP_STATE_ERROR = 6
-};
-
-
-#endif /* NES_CONTEXT_H */
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
deleted file mode 100644
index 5517e392bc01..000000000000
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ /dev/null
@@ -1,3887 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/if_vlan.h>
-#include <linux/slab.h>
-
-#include "nes.h"
-
-static int wide_ppm_offset;
-module_param(wide_ppm_offset, int, 0644);
-MODULE_PARM_DESC(wide_ppm_offset, "Increase CX4 interface clock ppm offset, 0=100ppm (default), 1=300ppm");
-
-static u32 crit_err_count;
-u32 int_mod_timer_init;
-u32 int_mod_cq_depth_256;
-u32 int_mod_cq_depth_128;
-u32 int_mod_cq_depth_32;
-u32 int_mod_cq_depth_24;
-u32 int_mod_cq_depth_16;
-u32 int_mod_cq_depth_4;
-u32 int_mod_cq_depth_1;
-static const u8 nes_max_critical_error_count = 100;
-#include "nes_cm.h"
-
-static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq);
-static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count);
-static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
- struct nes_adapter *nesadapter, u8 OneG_Mode);
-static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq);
-static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq);
-static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq);
-static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
- struct nes_hw_aeqe *aeqe);
-static void process_critical_error(struct nes_device *nesdev);
-static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number);
-static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode);
-static void nes_terminate_start_timer(struct nes_qp *nesqp);
-
-static const char *const nes_iwarp_state_str[] = {
- "Non-Existent",
- "Idle",
- "RTS",
- "Closing",
- "RSVD1",
- "Terminate",
- "Error",
- "RSVD2",
-};
-
-static const char *const nes_tcp_state_str[] = {
- "Non-Existent",
- "Closed",
- "Listen",
- "SYN Sent",
- "SYN Rcvd",
- "Established",
- "Close Wait",
- "FIN Wait 1",
- "Closing",
- "Last Ack",
- "FIN Wait 2",
- "Time Wait",
- "RSVD1",
- "RSVD2",
- "RSVD3",
- "RSVD4",
-};
-
-static inline void print_ip(struct nes_cm_node *cm_node)
-{
- unsigned char *rem_addr;
- if (cm_node) {
- rem_addr = (unsigned char *)&cm_node->rem_addr;
- printk(KERN_ERR PFX "Remote IP addr: %pI4\n", rem_addr);
- }
-}
-
-/**
- * nes_nic_init_timer_defaults
- */
-void nes_nic_init_timer_defaults(struct nes_device *nesdev, u8 jumbomode)
-{
- unsigned long flags;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
-
- spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
-
- shared_timer->timer_in_use_min = NES_NIC_FAST_TIMER_LOW;
- shared_timer->timer_in_use_max = NES_NIC_FAST_TIMER_HIGH;
- if (jumbomode) {
- shared_timer->threshold_low = DEFAULT_JUMBO_NES_QL_LOW;
- shared_timer->threshold_target = DEFAULT_JUMBO_NES_QL_TARGET;
- shared_timer->threshold_high = DEFAULT_JUMBO_NES_QL_HIGH;
- } else {
- shared_timer->threshold_low = DEFAULT_NES_QL_LOW;
- shared_timer->threshold_target = DEFAULT_NES_QL_TARGET;
- shared_timer->threshold_high = DEFAULT_NES_QL_HIGH;
- }
-
- /* todo use netdev->mtu to set thresholds */
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
-}
-
-
-/**
- * nes_nic_init_timer
- */
-static void nes_nic_init_timer(struct nes_device *nesdev)
-{
- unsigned long flags;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
-
- spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
-
- if (shared_timer->timer_in_use_old == 0) {
- nesdev->deepcq_count = 0;
- shared_timer->timer_direction_upward = 0;
- shared_timer->timer_direction_downward = 0;
- shared_timer->timer_in_use = NES_NIC_FAST_TIMER;
- shared_timer->timer_in_use_old = 0;
-
- }
- if (shared_timer->timer_in_use != shared_timer->timer_in_use_old) {
- shared_timer->timer_in_use_old = shared_timer->timer_in_use;
- nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
- 0x80000000 | ((u32)(shared_timer->timer_in_use*8)));
- }
- /* todo use netdev->mtu to set thresholds */
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
-}
-
-
-/**
- * nes_nic_tune_timer
- */
-static void nes_nic_tune_timer(struct nes_device *nesdev)
-{
- unsigned long flags;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
- u16 cq_count = nesdev->currcq_count;
-
- spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
-
- if (shared_timer->cq_count_old <= cq_count)
- shared_timer->cq_direction_downward = 0;
- else
- shared_timer->cq_direction_downward++;
- shared_timer->cq_count_old = cq_count;
- if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) {
- if (cq_count <= shared_timer->threshold_low &&
- shared_timer->threshold_low > 4) {
- shared_timer->threshold_low = shared_timer->threshold_low/2;
- shared_timer->cq_direction_downward=0;
- nesdev->currcq_count = 0;
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
- return;
- }
- }
-
- if (cq_count > 1) {
- nesdev->deepcq_count += cq_count;
- if (cq_count <= shared_timer->threshold_low) { /* increase timer gently */
- shared_timer->timer_direction_upward++;
- shared_timer->timer_direction_downward = 0;
- } else if (cq_count <= shared_timer->threshold_target) { /* balanced */
- shared_timer->timer_direction_upward = 0;
- shared_timer->timer_direction_downward = 0;
- } else if (cq_count <= shared_timer->threshold_high) { /* decrease timer gently */
- shared_timer->timer_direction_downward++;
- shared_timer->timer_direction_upward = 0;
- } else if (cq_count <= (shared_timer->threshold_high) * 2) {
- shared_timer->timer_in_use -= 2;
- shared_timer->timer_direction_upward = 0;
- shared_timer->timer_direction_downward++;
- } else {
- shared_timer->timer_in_use -= 4;
- shared_timer->timer_direction_upward = 0;
- shared_timer->timer_direction_downward++;
- }
-
- if (shared_timer->timer_direction_upward > 3 ) { /* using history */
- shared_timer->timer_in_use += 3;
- shared_timer->timer_direction_upward = 0;
- shared_timer->timer_direction_downward = 0;
- }
- if (shared_timer->timer_direction_downward > 5) { /* using history */
- shared_timer->timer_in_use -= 4 ;
- shared_timer->timer_direction_downward = 0;
- shared_timer->timer_direction_upward = 0;
- }
- }
-
- /* boundary checking */
- if (shared_timer->timer_in_use > shared_timer->threshold_high)
- shared_timer->timer_in_use = shared_timer->threshold_high;
- else if (shared_timer->timer_in_use < shared_timer->threshold_low)
- shared_timer->timer_in_use = shared_timer->threshold_low;
-
- nesdev->currcq_count = 0;
-
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
-}
-
-
-/**
- * nes_init_adapter - initialize adapter
- */
-struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
- struct nes_adapter *nesadapter = NULL;
- unsigned long num_pds;
- u32 u32temp;
- u32 port_count;
- u16 max_rq_wrs;
- u16 max_sq_wrs;
- u32 max_mr;
- u32 max_256pbl;
- u32 max_4kpbl;
- u32 max_qp;
- u32 max_irrq;
- u32 max_cq;
- u32 hte_index_mask;
- u32 adapter_size;
- u32 arp_table_size;
- u16 vendor_id;
- u16 device_id;
- u8 OneG_Mode;
- u8 func_index;
-
- /* search the list of existing adapters */
- list_for_each_entry(nesadapter, &nes_adapter_list, list) {
- nes_debug(NES_DBG_INIT, "Searching Adapter list for PCI devfn = 0x%X,"
- " adapter PCI slot/bus = %u/%u, pci devices PCI slot/bus = %u/%u, .\n",
- nesdev->pcidev->devfn,
- PCI_SLOT(nesadapter->devfn),
- nesadapter->bus_number,
- PCI_SLOT(nesdev->pcidev->devfn),
- nesdev->pcidev->bus->number );
- if ((PCI_SLOT(nesadapter->devfn) == PCI_SLOT(nesdev->pcidev->devfn)) &&
- (nesadapter->bus_number == nesdev->pcidev->bus->number)) {
- nesadapter->ref_count++;
- return nesadapter;
- }
- }
-
- /* no adapter found */
- num_pds = pci_resource_len(nesdev->pcidev, BAR_1) >> PAGE_SHIFT;
- if ((hw_rev != NE020_REV) && (hw_rev != NE020_REV1)) {
- nes_debug(NES_DBG_INIT, "NE020 driver detected unknown hardware revision 0x%x\n",
- hw_rev);
- return NULL;
- }
-
- nes_debug(NES_DBG_INIT, "Determine Soft Reset, QP_control=0x%x, CPU0=0x%x, CPU1=0x%x, CPU2=0x%x\n",
- nes_read_indexed(nesdev, NES_IDX_QP_CONTROL + PCI_FUNC(nesdev->pcidev->devfn) * 8),
- nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS),
- nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 4),
- nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 8));
-
- nes_debug(NES_DBG_INIT, "Reset and init NE020\n");
-
-
- if ((port_count = nes_reset_adapter_ne020(nesdev, &OneG_Mode)) == 0)
- return NULL;
-
- max_qp = nes_read_indexed(nesdev, NES_IDX_QP_CTX_SIZE);
- nes_debug(NES_DBG_INIT, "QP_CTX_SIZE=%u\n", max_qp);
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_QUAD_HASH_TABLE_SIZE);
- if (max_qp > ((u32)1 << (u32temp & 0x001f))) {
- nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to hash table size = 0x%08X\n",
- max_qp, u32temp);
- max_qp = (u32)1 << (u32temp & 0x001f);
- }
-
- hte_index_mask = ((u32)1 << ((u32temp & 0x001f)+1))-1;
- nes_debug(NES_DBG_INIT, "Max QP = %u, hte_index_mask = 0x%08X.\n",
- max_qp, hte_index_mask);
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_IRRQ_COUNT);
-
- max_irrq = 1 << (u32temp & 0x001f);
-
- if (max_qp > max_irrq) {
- max_qp = max_irrq;
- nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to Available Q1s.\n",
- max_qp);
- }
-
- /* there should be no reason to allocate more pds than qps */
- if (num_pds > max_qp)
- num_pds = max_qp;
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_MRT_SIZE);
- max_mr = (u32)8192 << (u32temp & 0x7);
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_PBL_REGION_SIZE);
- max_256pbl = (u32)1 << (u32temp & 0x0000001f);
- max_4kpbl = (u32)1 << ((u32temp >> 16) & 0x0000001f);
- max_cq = nes_read_indexed(nesdev, NES_IDX_CQ_CTX_SIZE);
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_ARP_CACHE_SIZE);
- arp_table_size = 1 << u32temp;
-
- adapter_size = (sizeof(struct nes_adapter) +
- (sizeof(unsigned long)-1)) & (~(sizeof(unsigned long)-1));
- adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
- adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
- adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
- adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
- adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
- adapter_size += sizeof(struct nes_qp **) * max_qp;
-
- /* allocate a new adapter struct */
- nesadapter = kzalloc(adapter_size, GFP_KERNEL);
- if (!nesadapter)
- return NULL;
-
- nes_debug(NES_DBG_INIT, "Allocating new nesadapter @ %p, size = %u (actual size = %u).\n",
- nesadapter, (u32)sizeof(struct nes_adapter), adapter_size);
-
- if (nes_read_eeprom_values(nesdev, nesadapter)) {
- printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
- kfree(nesadapter);
- return NULL;
- }
-
- nesadapter->vendor_id = (((u32) nesadapter->mac_addr_high) << 8) |
- (nesadapter->mac_addr_low >> 24);
-
- pci_bus_read_config_word(nesdev->pcidev->bus, nesdev->pcidev->devfn,
- PCI_DEVICE_ID, &device_id);
- nesadapter->vendor_part_id = device_id;
-
- if (nes_init_serdes(nesdev, hw_rev, port_count, nesadapter,
- OneG_Mode)) {
- kfree(nesadapter);
- return NULL;
- }
- nes_init_csr_ne020(nesdev, hw_rev, port_count);
-
- memset(nesadapter->pft_mcast_map, 255,
- sizeof nesadapter->pft_mcast_map);
-
- /* populate the new nesadapter */
- nesadapter->nesdev = nesdev;
- nesadapter->devfn = nesdev->pcidev->devfn;
- nesadapter->bus_number = nesdev->pcidev->bus->number;
- nesadapter->ref_count = 1;
- nesadapter->timer_int_req = 0xffff0000;
- nesadapter->OneG_Mode = OneG_Mode;
- nesadapter->doorbell_start = nesdev->doorbell_region;
-
- /* nesadapter->tick_delta = clk_divisor; */
- nesadapter->hw_rev = hw_rev;
- nesadapter->port_count = port_count;
-
- nesadapter->max_qp = max_qp;
- nesadapter->hte_index_mask = hte_index_mask;
- nesadapter->max_irrq = max_irrq;
- nesadapter->max_mr = max_mr;
- nesadapter->max_256pbl = max_256pbl - 1;
- nesadapter->max_4kpbl = max_4kpbl - 1;
- nesadapter->max_cq = max_cq;
- nesadapter->free_256pbl = max_256pbl - 1;
- nesadapter->free_4kpbl = max_4kpbl - 1;
- nesadapter->max_pd = num_pds;
- nesadapter->arp_table_size = arp_table_size;
-
- nesadapter->et_pkt_rate_low = NES_TIMER_ENABLE_LIMIT;
- if (nes_drv_opt & NES_DRV_OPT_DISABLE_INT_MOD) {
- nesadapter->et_use_adaptive_rx_coalesce = 0;
- nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
- nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
- } else {
- nesadapter->et_use_adaptive_rx_coalesce = 1;
- nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
- nesadapter->et_rx_coalesce_usecs_irq = 0;
- printk(PFX "%s: Using Adaptive Interrupt Moderation\n", __func__);
- }
- /* Setup and enable the periodic timer */
- if (nesadapter->et_rx_coalesce_usecs_irq)
- nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x80000000 |
- ((u32)(nesadapter->et_rx_coalesce_usecs_irq * 8)));
- else
- nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x00000000);
-
- nesadapter->base_pd = 1;
-
- nesadapter->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
- IB_DEVICE_MEM_WINDOW |
- IB_DEVICE_MEM_MGT_EXTENSIONS;
-
- nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
- [(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);
- nesadapter->allocated_cqs = &nesadapter->allocated_qps[BITS_TO_LONGS(max_qp)];
- nesadapter->allocated_mrs = &nesadapter->allocated_cqs[BITS_TO_LONGS(max_cq)];
- nesadapter->allocated_pds = &nesadapter->allocated_mrs[BITS_TO_LONGS(max_mr)];
- nesadapter->allocated_arps = &nesadapter->allocated_pds[BITS_TO_LONGS(num_pds)];
- nesadapter->qp_table = (struct nes_qp **)(&nesadapter->allocated_arps[BITS_TO_LONGS(arp_table_size)]);
-
-
- /* mark the usual suspect QPs, MR and CQs as in use */
- for (u32temp = 0; u32temp < NES_FIRST_QPN; u32temp++) {
- set_bit(u32temp, nesadapter->allocated_qps);
- set_bit(u32temp, nesadapter->allocated_cqs);
- }
- set_bit(0, nesadapter->allocated_mrs);
-
- for (u32temp = 0; u32temp < 20; u32temp++)
- set_bit(u32temp, nesadapter->allocated_pds);
- u32temp = nes_read_indexed(nesdev, NES_IDX_QP_MAX_CFG_SIZES);
-
- max_rq_wrs = ((u32temp >> 8) & 3);
- switch (max_rq_wrs) {
- case 0:
- max_rq_wrs = 4;
- break;
- case 1:
- max_rq_wrs = 16;
- break;
- case 2:
- max_rq_wrs = 32;
- break;
- case 3:
- max_rq_wrs = 512;
- break;
- }
-
- max_sq_wrs = (u32temp & 3);
- switch (max_sq_wrs) {
- case 0:
- max_sq_wrs = 4;
- break;
- case 1:
- max_sq_wrs = 16;
- break;
- case 2:
- max_sq_wrs = 32;
- break;
- case 3:
- max_sq_wrs = 512;
- break;
- }
- nesadapter->max_qp_wr = min(max_rq_wrs, max_sq_wrs);
- nesadapter->max_irrq_wr = (u32temp >> 16) & 3;
-
- nesadapter->max_sge = 4;
- nesadapter->max_cqe = 32766;
-
- if (nes_read_eeprom_values(nesdev, nesadapter)) {
- printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
- kfree(nesadapter);
- return NULL;
- }
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG);
- nes_write_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG,
- (u32temp & 0xff000000) | (nesadapter->tcp_timer_core_clk_divisor & 0x00ffffff));
-
- /* setup port configuration */
- if (nesadapter->port_count == 1) {
- nesadapter->log_port = 0x00000000;
- if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT)
- nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000002);
- else
- nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
- } else {
- if (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
- nesadapter->log_port = 0x000000D8;
- } else {
- if (nesadapter->port_count == 2)
- nesadapter->log_port = 0x00000044;
- else
- nesadapter->log_port = 0x000000e4;
- }
- nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
- }
-
- nes_write_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT,
- nesadapter->log_port);
- nes_debug(NES_DBG_INIT, "Probe time, LOG2PHY=%u\n",
- nes_read_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT));
-
- spin_lock_init(&nesadapter->resource_lock);
- spin_lock_init(&nesadapter->phy_lock);
- spin_lock_init(&nesadapter->pbl_lock);
- spin_lock_init(&nesadapter->periodic_timer_lock);
-
- INIT_LIST_HEAD(&nesadapter->nesvnic_list[0]);
- INIT_LIST_HEAD(&nesadapter->nesvnic_list[1]);
- INIT_LIST_HEAD(&nesadapter->nesvnic_list[2]);
- INIT_LIST_HEAD(&nesadapter->nesvnic_list[3]);
-
- if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
- u32 pcs_control_status0, pcs_control_status1;
- u32 reset_value;
- u32 i = 0;
- u32 int_cnt = 0;
- u32 ext_cnt = 0;
- unsigned long flags;
- u32 j = 0;
-
- pcs_control_status0 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0);
- pcs_control_status1 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
-
- for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
- pcs_control_status0 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0);
- pcs_control_status1 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
- if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
- || (0x0F000100 == (pcs_control_status1 & 0x0F000100)))
- int_cnt++;
- usleep_range(1000, 2000);
- }
- if (int_cnt > 1) {
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
- mh_detected++;
- reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
- reset_value |= 0x0000003d;
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
-
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
- & 0x00000040) != 0x00000040) && (j++ < 5000));
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
-
- pcs_control_status0 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0);
- pcs_control_status1 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
-
- for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
- pcs_control_status0 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0);
- pcs_control_status1 = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
- if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
- || (0x0F000100 == (pcs_control_status1 & 0x0F000100))) {
- if (++ext_cnt > int_cnt) {
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1,
- 0x0000F088);
- mh_detected++;
- reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
- reset_value |= 0x0000003d;
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
-
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
- & 0x00000040) != 0x00000040) && (j++ < 5000));
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- break;
- }
- }
- usleep_range(1000, 2000);
- }
- }
- }
-
- if (nesadapter->hw_rev == NE020_REV) {
- timer_setup(&nesadapter->mh_timer, nes_mh_fix, 0);
- nesadapter->mh_timer.expires = jiffies + (HZ/5); /* 1 second */
- add_timer(&nesadapter->mh_timer);
- } else {
- nes_write32(nesdev->regs+NES_INTF_INT_STAT, 0x0f000000);
- }
-
- timer_setup(&nesadapter->lc_timer, nes_clc, 0);
- nesadapter->lc_timer.expires = jiffies + 3600 * HZ; /* 1 hour */
- add_timer(&nesadapter->lc_timer);
-
- list_add_tail(&nesadapter->list, &nes_adapter_list);
-
- for (func_index = 0; func_index < 8; func_index++) {
- pci_bus_read_config_word(nesdev->pcidev->bus,
- PCI_DEVFN(PCI_SLOT(nesdev->pcidev->devfn),
- func_index), 0, &vendor_id);
- if (vendor_id == 0xffff)
- break;
- }
- nes_debug(NES_DBG_INIT, "%s %d functions found for %s.\n", __func__,
- func_index, pci_name(nesdev->pcidev));
- nesadapter->adapter_fcn_count = func_index;
-
- return nesadapter;
-}
-
-
-/**
- * nes_reset_adapter_ne020
- */
-static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode)
-{
- u32 port_count;
- u32 u32temp;
- u32 i;
-
- u32temp = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
- port_count = ((u32temp & 0x00000300) >> 8) + 1;
- /* TODO: assuming that both SERDES are set the same for now */
- *OneG_Mode = (u32temp & 0x00003c00) ? 0 : 1;
- nes_debug(NES_DBG_INIT, "Initial Software Reset = 0x%08X, port_count=%u\n",
- u32temp, port_count);
- if (*OneG_Mode)
- nes_debug(NES_DBG_INIT, "Running in 1G mode.\n");
- u32temp &= 0xff00ffc0;
- switch (port_count) {
- case 1:
- u32temp |= 0x00ee0000;
- break;
- case 2:
- u32temp |= 0x00cc0000;
- break;
- case 4:
- u32temp |= 0x00000000;
- break;
- default:
- return 0;
- break;
- }
-
- /* check and do full reset if needed */
- if (nes_read_indexed(nesdev, NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8))) {
- nes_debug(NES_DBG_INIT, "Issuing Full Soft reset = 0x%08X\n", u32temp | 0xd);
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
-
- i = 0;
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
- mdelay(1);
- if (i > 10000) {
- nes_debug(NES_DBG_INIT, "Did not see full soft reset done.\n");
- return 0;
- }
-
- i = 0;
- while ((nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS) != 0x80) && i++ < 10000)
- mdelay(1);
- if (i > 10000) {
- printk(KERN_ERR PFX "Internal CPU not ready, status = %02X\n",
- nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS));
- return 0;
- }
- }
-
- /* port reset */
- switch (port_count) {
- case 1:
- u32temp |= 0x00ee0010;
- break;
- case 2:
- u32temp |= 0x00cc0030;
- break;
- case 4:
- u32temp |= 0x00000030;
- break;
- }
-
- nes_debug(NES_DBG_INIT, "Issuing Port Soft reset = 0x%08X\n", u32temp | 0xd);
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
-
- i = 0;
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
- mdelay(1);
- if (i > 10000) {
- nes_debug(NES_DBG_INIT, "Did not see port soft reset done.\n");
- return 0;
- }
-
- /* serdes 0 */
- i = 0;
- while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
- & 0x0000000f)) != 0x0000000f) && i++ < 5000)
- mdelay(1);
- if (i > 5000) {
- nes_debug(NES_DBG_INIT, "Serdes 0 not ready, status=%x\n", u32temp);
- return 0;
- }
-
- /* serdes 1 */
- if (port_count > 1) {
- i = 0;
- while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
- & 0x0000000f)) != 0x0000000f) && i++ < 5000)
- mdelay(1);
- if (i > 5000) {
- nes_debug(NES_DBG_INIT, "Serdes 1 not ready, status=%x\n", u32temp);
- return 0;
- }
- }
-
- return port_count;
-}
-
-
-/**
- * nes_init_serdes
- */
-static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
- struct nes_adapter *nesadapter, u8 OneG_Mode)
-{
- int i;
- u32 u32temp;
- u32 sds;
-
- if (hw_rev != NE020_REV) {
- /* init serdes 0 */
- switch (nesadapter->phy_type[0]) {
- case NES_PHY_TYPE_CX4:
- if (wide_ppm_offset)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000FFFAA);
- else
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
- break;
- case NES_PHY_TYPE_KR:
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
- break;
- case NES_PHY_TYPE_PUMA_1G:
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
- sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0);
- sds |= 0x00000100;
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds);
- break;
- default:
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
- break;
- }
-
- if (!OneG_Mode)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE0, 0x11110000);
-
- if (port_count < 2)
- return 0;
-
- /* init serdes 1 */
- if (!(OneG_Mode && (nesadapter->phy_type[1] != NES_PHY_TYPE_PUMA_1G)))
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000FF);
-
- switch (nesadapter->phy_type[1]) {
- case NES_PHY_TYPE_ARGUS:
- case NES_PHY_TYPE_SFP_D:
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
- break;
- case NES_PHY_TYPE_CX4:
- if (wide_ppm_offset)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000FFFAA);
- break;
- case NES_PHY_TYPE_KR:
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
- break;
- case NES_PHY_TYPE_PUMA_1G:
- sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
- sds |= 0x000000100;
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
- }
- if (!OneG_Mode) {
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE1, 0x11110000);
- sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
- sds &= 0xFFFFFFBF;
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
- }
- } else {
- /* init serdes 0 */
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, 0x00000008);
- i = 0;
- while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
- & 0x0000000f)) != 0x0000000f) && i++ < 5000)
- mdelay(1);
- if (i > 5000) {
- nes_debug(NES_DBG_PHY, "Init: serdes 0 not ready, status=%x\n", u32temp);
- return 1;
- }
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x000bdef7);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE0, 0x9ce73000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE0, 0x0ff00000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET0, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS0, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL0, 0x00000000);
- if (OneG_Mode)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0182222);
- else
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0042222);
-
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000ff);
- if (port_count > 1) {
- /* init serdes 1 */
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x00000048);
- i = 0;
- while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
- & 0x0000000f)) != 0x0000000f) && (i++ < 5000))
- mdelay(1);
- if (i > 5000) {
- printk("%s: Init: serdes 1 not ready, status=%x\n", __func__, u32temp);
- /* return 1; */
- }
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x000bdef7);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE1, 0x9ce73000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE1, 0x0ff00000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET1, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS1, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL1, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL1, 0xf0002222);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000ff);
- }
- }
- return 0;
-}
-
-
-/**
- * nes_init_csr_ne020
- * Initialize registers for ne020 hardware
- */
-static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count)
-{
- u32 u32temp;
-
- nes_debug(NES_DBG_INIT, "port_count=%d\n", port_count);
-
- nes_write_indexed(nesdev, 0x000001E4, 0x00000007);
- /* nes_write_indexed(nesdev, 0x000001E8, 0x000208C4); */
- nes_write_indexed(nesdev, 0x000001E8, 0x00020874);
- nes_write_indexed(nesdev, 0x000001D8, 0x00048002);
- /* nes_write_indexed(nesdev, 0x000001D8, 0x0004B002); */
- nes_write_indexed(nesdev, 0x000001FC, 0x00050005);
- nes_write_indexed(nesdev, 0x00000600, 0x55555555);
- nes_write_indexed(nesdev, 0x00000604, 0x55555555);
-
- /* TODO: move these MAC register settings to NIC bringup */
- nes_write_indexed(nesdev, 0x00002000, 0x00000001);
- nes_write_indexed(nesdev, 0x00002004, 0x00000001);
- nes_write_indexed(nesdev, 0x00002008, 0x0000FFFF);
- nes_write_indexed(nesdev, 0x0000200C, 0x00000001);
- nes_write_indexed(nesdev, 0x00002010, 0x000003c1);
- nes_write_indexed(nesdev, 0x0000201C, 0x75345678);
- if (port_count > 1) {
- nes_write_indexed(nesdev, 0x00002200, 0x00000001);
- nes_write_indexed(nesdev, 0x00002204, 0x00000001);
- nes_write_indexed(nesdev, 0x00002208, 0x0000FFFF);
- nes_write_indexed(nesdev, 0x0000220C, 0x00000001);
- nes_write_indexed(nesdev, 0x00002210, 0x000003c1);
- nes_write_indexed(nesdev, 0x0000221C, 0x75345678);
- nes_write_indexed(nesdev, 0x00000908, 0x20000001);
- }
- if (port_count > 2) {
- nes_write_indexed(nesdev, 0x00002400, 0x00000001);
- nes_write_indexed(nesdev, 0x00002404, 0x00000001);
- nes_write_indexed(nesdev, 0x00002408, 0x0000FFFF);
- nes_write_indexed(nesdev, 0x0000240C, 0x00000001);
- nes_write_indexed(nesdev, 0x00002410, 0x000003c1);
- nes_write_indexed(nesdev, 0x0000241C, 0x75345678);
- nes_write_indexed(nesdev, 0x00000910, 0x20000001);
-
- nes_write_indexed(nesdev, 0x00002600, 0x00000001);
- nes_write_indexed(nesdev, 0x00002604, 0x00000001);
- nes_write_indexed(nesdev, 0x00002608, 0x0000FFFF);
- nes_write_indexed(nesdev, 0x0000260C, 0x00000001);
- nes_write_indexed(nesdev, 0x00002610, 0x000003c1);
- nes_write_indexed(nesdev, 0x0000261C, 0x75345678);
- nes_write_indexed(nesdev, 0x00000918, 0x20000001);
- }
-
- nes_write_indexed(nesdev, 0x00005000, 0x00018000);
- /* nes_write_indexed(nesdev, 0x00005000, 0x00010000); */
- nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1, (wqm_quanta << 1) |
- 0x00000001);
- nes_write_indexed(nesdev, 0x00005008, 0x1F1F1F1F);
- nes_write_indexed(nesdev, 0x00005010, 0x1F1F1F1F);
- nes_write_indexed(nesdev, 0x00005018, 0x1F1F1F1F);
- nes_write_indexed(nesdev, 0x00005020, 0x1F1F1F1F);
- nes_write_indexed(nesdev, 0x00006090, 0xFFFFFFFF);
-
- /* TODO: move this to code, get from EEPROM */
- nes_write_indexed(nesdev, 0x00000900, 0x20000001);
- nes_write_indexed(nesdev, 0x000060C0, 0x0000028e);
- nes_write_indexed(nesdev, 0x000060C8, 0x00000020);
-
- nes_write_indexed(nesdev, 0x000001EC, 0x7b2625a0);
- /* nes_write_indexed(nesdev, 0x000001EC, 0x5f2625a0); */
-
- if (hw_rev != NE020_REV) {
- u32temp = nes_read_indexed(nesdev, 0x000008e8);
- u32temp |= 0x80000000;
- nes_write_indexed(nesdev, 0x000008e8, u32temp);
- u32temp = nes_read_indexed(nesdev, 0x000021f8);
- u32temp &= 0x7fffffff;
- u32temp |= 0x7fff0010;
- nes_write_indexed(nesdev, 0x000021f8, u32temp);
- if (port_count > 1) {
- u32temp = nes_read_indexed(nesdev, 0x000023f8);
- u32temp &= 0x7fffffff;
- u32temp |= 0x7fff0010;
- nes_write_indexed(nesdev, 0x000023f8, u32temp);
- }
- }
-}
-
-
-/**
- * nes_destroy_adapter - destroy the adapter structure
- */
-void nes_destroy_adapter(struct nes_adapter *nesadapter)
-{
- struct nes_adapter *tmp_adapter;
-
- list_for_each_entry(tmp_adapter, &nes_adapter_list, list) {
- nes_debug(NES_DBG_SHUTDOWN, "Nes Adapter list entry = 0x%p.\n",
- tmp_adapter);
- }
-
- nesadapter->ref_count--;
- if (!nesadapter->ref_count) {
- if (nesadapter->hw_rev == NE020_REV) {
- del_timer(&nesadapter->mh_timer);
- }
- del_timer(&nesadapter->lc_timer);
-
- list_del(&nesadapter->list);
- kfree(nesadapter);
- }
-}
-
-
-/**
- * nes_init_cqp
- */
-int nes_init_cqp(struct nes_device *nesdev)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_cqp_qp_context *cqp_qp_context;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_hw_ceq *ceq;
- struct nes_hw_ceq *nic_ceq;
- struct nes_hw_aeq *aeq;
- void *vmem;
- dma_addr_t pmem;
- u32 count=0;
- u32 cqp_head;
- u64 u64temp;
- u32 u32temp;
-
- /* allocate CQP memory */
- /* Need to add max_cq to the aeq size once cq overflow checking is added back */
- /* SQ is 512 byte aligned, others are 256 byte aligned */
- nesdev->cqp_mem_size = 512 +
- (sizeof(struct nes_hw_cqp_wqe) * NES_CQP_SQ_SIZE) +
- (sizeof(struct nes_hw_cqe) * NES_CCQ_SIZE) +
- max(((u32)sizeof(struct nes_hw_ceqe) * NES_CCEQ_SIZE), (u32)256) +
- max(((u32)sizeof(struct nes_hw_ceqe) * NES_NIC_CEQ_SIZE), (u32)256) +
- (sizeof(struct nes_hw_aeqe) * nesadapter->max_qp) +
- sizeof(struct nes_hw_cqp_qp_context);
-
- nesdev->cqp_vbase = pci_zalloc_consistent(nesdev->pcidev,
- nesdev->cqp_mem_size,
- &nesdev->cqp_pbase);
- if (!nesdev->cqp_vbase) {
- nes_debug(NES_DBG_INIT, "Unable to allocate memory for host descriptor rings\n");
- return -ENOMEM;
- }
-
- /* Allocate a twice the number of CQP requests as the SQ size */
- nesdev->nes_cqp_requests = kzalloc(sizeof(struct nes_cqp_request) *
- 2 * NES_CQP_SQ_SIZE, GFP_KERNEL);
- if (!nesdev->nes_cqp_requests) {
- pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
- nesdev->cqp.sq_pbase);
- return -ENOMEM;
- }
-
- nes_debug(NES_DBG_INIT, "Allocated CQP structures at %p (phys = %016lX), size = %u.\n",
- nesdev->cqp_vbase, (unsigned long)nesdev->cqp_pbase, nesdev->cqp_mem_size);
-
- spin_lock_init(&nesdev->cqp.lock);
- init_waitqueue_head(&nesdev->cqp.waitq);
-
- /* Setup Various Structures */
- vmem = (void *)(((unsigned long)nesdev->cqp_vbase + (512 - 1)) &
- ~(unsigned long)(512 - 1));
- pmem = (dma_addr_t)(((unsigned long long)nesdev->cqp_pbase + (512 - 1)) &
- ~(unsigned long long)(512 - 1));
-
- nesdev->cqp.sq_vbase = vmem;
- nesdev->cqp.sq_pbase = pmem;
- nesdev->cqp.sq_size = NES_CQP_SQ_SIZE;
- nesdev->cqp.sq_head = 0;
- nesdev->cqp.sq_tail = 0;
- nesdev->cqp.qp_id = PCI_FUNC(nesdev->pcidev->devfn);
-
- vmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
- pmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
-
- nesdev->ccq.cq_vbase = vmem;
- nesdev->ccq.cq_pbase = pmem;
- nesdev->ccq.cq_size = NES_CCQ_SIZE;
- nesdev->ccq.cq_head = 0;
- nesdev->ccq.ce_handler = nes_cqp_ce_handler;
- nesdev->ccq.cq_number = PCI_FUNC(nesdev->pcidev->devfn);
-
- vmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
- pmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
-
- nesdev->ceq_index = PCI_FUNC(nesdev->pcidev->devfn);
- ceq = &nesadapter->ceq[nesdev->ceq_index];
- ceq->ceq_vbase = vmem;
- ceq->ceq_pbase = pmem;
- ceq->ceq_size = NES_CCEQ_SIZE;
- ceq->ceq_head = 0;
-
- vmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
- pmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
-
- nesdev->nic_ceq_index = PCI_FUNC(nesdev->pcidev->devfn) + 8;
- nic_ceq = &nesadapter->ceq[nesdev->nic_ceq_index];
- nic_ceq->ceq_vbase = vmem;
- nic_ceq->ceq_pbase = pmem;
- nic_ceq->ceq_size = NES_NIC_CEQ_SIZE;
- nic_ceq->ceq_head = 0;
-
- vmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
- pmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
-
- aeq = &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)];
- aeq->aeq_vbase = vmem;
- aeq->aeq_pbase = pmem;
- aeq->aeq_size = nesadapter->max_qp;
- aeq->aeq_head = 0;
-
- /* Setup QP Context */
- vmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
- pmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
-
- cqp_qp_context = vmem;
- cqp_qp_context->context_words[0] =
- cpu_to_le32((PCI_FUNC(nesdev->pcidev->devfn) << 12) + (2 << 10));
- cqp_qp_context->context_words[1] = 0;
- cqp_qp_context->context_words[2] = cpu_to_le32((u32)nesdev->cqp.sq_pbase);
- cqp_qp_context->context_words[3] = cpu_to_le32(((u64)nesdev->cqp.sq_pbase) >> 32);
-
-
- /* Write the address to Create CQP */
- if ((sizeof(dma_addr_t) > 4)) {
- nes_write_indexed(nesdev,
- NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
- ((u64)pmem) >> 32);
- } else {
- nes_write_indexed(nesdev,
- NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8), 0);
- }
- nes_write_indexed(nesdev,
- NES_IDX_CREATE_CQP_LOW + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
- (u32)pmem);
-
- INIT_LIST_HEAD(&nesdev->cqp_avail_reqs);
- INIT_LIST_HEAD(&nesdev->cqp_pending_reqs);
-
- for (count = 0; count < 2*NES_CQP_SQ_SIZE; count++) {
- init_waitqueue_head(&nesdev->nes_cqp_requests[count].waitq);
- list_add_tail(&nesdev->nes_cqp_requests[count].list, &nesdev->cqp_avail_reqs);
- }
-
- /* Write Create CCQ WQE */
- cqp_head = nesdev->cqp.sq_head++;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
- NES_CQP_CQ_CHK_OVERFLOW | ((u32)nesdev->ccq.cq_size << 16)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- (nesdev->ccq.cq_number |
- ((u32)nesdev->ceq_index << 16)));
- u64temp = (u64)nesdev->ccq.cq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
- u64temp = (unsigned long)&nesdev->ccq;
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] =
- cpu_to_le32((u32)(u64temp >> 1));
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
- cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
-
- /* Write Create CEQ WQE */
- cqp_head = nesdev->cqp.sq_head++;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_CREATE_CEQ + ((u32)nesdev->ceq_index << 8)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, ceq->ceq_size);
- u64temp = (u64)ceq->ceq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
-
- /* Write Create AEQ WQE */
- cqp_head = nesdev->cqp.sq_head++;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_CREATE_AEQ + ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_AEQ_WQE_ELEMENT_COUNT_IDX, aeq->aeq_size);
- u64temp = (u64)aeq->aeq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
-
- /* Write Create NIC CEQ WQE */
- cqp_head = nesdev->cqp.sq_head++;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_CREATE_CEQ + ((u32)nesdev->nic_ceq_index << 8)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, nic_ceq->ceq_size);
- u64temp = (u64)nic_ceq->ceq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
-
- /* Poll until CCQP done */
- count = 0;
- do {
- if (count++ > 1000) {
- printk(KERN_ERR PFX "Error creating CQP\n");
- pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
- nesdev->cqp_vbase, nesdev->cqp_pbase);
- return -1;
- }
- udelay(10);
- } while (!(nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn) * 8)) & (1 << 8)));
-
- nes_debug(NES_DBG_INIT, "CQP Status = 0x%08X\n", nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
-
- u32temp = 0x04800000;
- nes_write32(nesdev->regs+NES_WQE_ALLOC, u32temp | nesdev->cqp.qp_id);
-
- /* wait for the CCQ, CEQ, and AEQ to get created */
- count = 0;
- do {
- if (count++ > 1000) {
- printk(KERN_ERR PFX "Error creating CCQ, CEQ, and AEQ\n");
- pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
- nesdev->cqp_vbase, nesdev->cqp_pbase);
- return -1;
- }
- udelay(10);
- } while (((nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15<<8)) != (15<<8)));
-
- /* dump the QP status value */
- nes_debug(NES_DBG_INIT, "QP Status = 0x%08X\n", nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
-
- nesdev->cqp.sq_tail++;
-
- return 0;
-}
-
-
-/**
- * nes_destroy_cqp
- */
-int nes_destroy_cqp(struct nes_device *nesdev)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- u32 count = 0;
- u32 cqp_head;
- unsigned long flags;
-
- do {
- if (count++ > 1000)
- break;
- udelay(10);
- } while (!(nesdev->cqp.sq_head == nesdev->cqp.sq_tail));
-
- /* Reset CCQ */
- nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_RESET |
- nesdev->ccq.cq_number);
-
- /* Disable device interrupts */
- nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
-
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
-
- /* Destroy the AEQ */
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_AEQ |
- ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8));
- cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
-
- /* Destroy the NIC CEQ */
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
- ((u32)nesdev->nic_ceq_index << 8));
-
- /* Destroy the CEQ */
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
- (nesdev->ceq_index << 8));
-
- /* Destroy the CCQ */
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CQ);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->ccq.cq_number |
- ((u32)nesdev->ceq_index << 16));
-
- /* Destroy CQP */
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_QP |
- NES_CQP_QP_TYPE_CQP);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->cqp.qp_id);
-
- barrier();
- /* Ring doorbell (5 WQEs) */
- nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x05800000 | nesdev->cqp.qp_id);
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-
- /* wait for the CCQ, CEQ, and AEQ to get destroyed */
- count = 0;
- do {
- if (count++ > 1000) {
- printk(KERN_ERR PFX "Function%d: Error destroying CCQ, CEQ, and AEQ\n",
- PCI_FUNC(nesdev->pcidev->devfn));
- break;
- }
- udelay(10);
- } while (((nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15 << 8)) != 0));
-
- /* dump the QP status value */
- nes_debug(NES_DBG_SHUTDOWN, "Function%d: QP Status = 0x%08X\n",
- PCI_FUNC(nesdev->pcidev->devfn),
- nes_read_indexed(nesdev,
- NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
-
- kfree(nesdev->nes_cqp_requests);
-
- /* Free the control structures */
- pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
- nesdev->cqp.sq_pbase);
-
- return 0;
-}
-
-
-/**
- * nes_init_1g_phy
- */
-static int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
-{
- u32 counter = 0;
- u16 phy_data;
- int ret = 0;
-
- nes_read_1G_phy_reg(nesdev, 1, phy_index, &phy_data);
- nes_write_1G_phy_reg(nesdev, 23, phy_index, 0xb000);
-
- /* Reset the PHY */
- nes_write_1G_phy_reg(nesdev, 0, phy_index, 0x8000);
- udelay(100);
- counter = 0;
- do {
- nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
- if (counter++ > 100) {
- ret = -1;
- break;
- }
- } while (phy_data & 0x8000);
-
- /* Setting no phy loopback */
- phy_data &= 0xbfff;
- phy_data |= 0x1140;
- nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
- nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
- nes_read_1G_phy_reg(nesdev, 0x17, phy_index, &phy_data);
- nes_read_1G_phy_reg(nesdev, 0x1e, phy_index, &phy_data);
-
- /* Setting the interrupt mask */
- nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
- nes_write_1G_phy_reg(nesdev, 0x19, phy_index, 0xffee);
- nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
-
- /* turning on flow control */
- nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
- nes_write_1G_phy_reg(nesdev, 4, phy_index, (phy_data & ~(0x03E0)) | 0xc00);
- nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
-
- /* Clear Half duplex */
- nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
- nes_write_1G_phy_reg(nesdev, 9, phy_index, phy_data & ~(0x0100));
- nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
-
- nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
- nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data | 0x0300);
-
- return ret;
-}
-
-
-/**
- * nes_init_2025_phy
- */
-static int nes_init_2025_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
-{
- u32 temp_phy_data = 0;
- u32 temp_phy_data2 = 0;
- u32 counter = 0;
- u32 sds;
- u32 mac_index = nesdev->mac_index;
- int ret = 0;
- unsigned int first_attempt = 1;
-
- /* Check firmware heartbeat */
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- udelay(1500);
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
- temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
-
- if (temp_phy_data != temp_phy_data2) {
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- if ((temp_phy_data & 0xff) > 0x20)
- return 0;
- printk(PFX "Reinitialize external PHY\n");
- }
-
- /* no heartbeat, configure the PHY */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0x0000, 0x8000);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0000);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
-
- switch (phy_type) {
- case NES_PHY_TYPE_ARGUS:
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0008);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0001);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
-
- /* setup LEDs */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
- break;
-
- case NES_PHY_TYPE_SFP_D:
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x0004);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0038);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
-
- /* setup LEDs */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
- break;
-
- case NES_PHY_TYPE_KR:
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0010);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0080);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
-
- /* setup LEDs */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x000B);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x0003);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0004);
-
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0022, 0x406D);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0023, 0x0020);
- break;
- }
-
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0028, 0xA528);
-
- /* Bring PHY out of reset */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0002);
-
- /* Check for heartbeat */
- counter = 0;
- mdelay(690);
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- do {
- if (counter++ > 150) {
- printk(PFX "No PHY heartbeat\n");
- break;
- }
- mdelay(1);
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
- temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- } while (temp_phy_data2 == temp_phy_data);
-
- /* wait for tracking */
- counter = 0;
- do {
- nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- if (counter++ > 300) {
- if (((temp_phy_data & 0xff) == 0x0) && first_attempt) {
- first_attempt = 0;
- counter = 0;
- /* reset AMCC PHY and try again */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x00c0);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x0040);
- continue;
- } else {
- ret = 1;
- break;
- }
- }
- mdelay(10);
- } while ((temp_phy_data & 0xff) < 0x30);
-
- /* setup signal integrity */
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd003, 0x0000);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00D, 0x00FE);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00E, 0x0032);
- if (phy_type == NES_PHY_TYPE_KR) {
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x000C);
- } else {
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x0002);
- nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc314, 0x0063);
- }
-
- /* reset serdes */
- sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200);
- sds |= 0x1;
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
- sds &= 0xfffffffe;
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
-
- counter = 0;
- while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET) & 0x00000040) != 0x00000040)
- && (counter++ < 5000))
- ;
-
- return ret;
-}
-
-
-/**
- * nes_init_phy
- */
-int nes_init_phy(struct nes_device *nesdev)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 mac_index = nesdev->mac_index;
- u32 tx_config = 0;
- unsigned long flags;
- u8 phy_type = nesadapter->phy_type[mac_index];
- u8 phy_index = nesadapter->phy_index[mac_index];
- int ret = 0;
-
- tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG);
- if (phy_type == NES_PHY_TYPE_1G) {
- /* setup 1G MDIO operation */
- tx_config &= 0xFFFFFFE3;
- tx_config |= 0x04;
- } else {
- /* setup 10G MDIO operation */
- tx_config &= 0xFFFFFFE3;
- tx_config |= 0x1D;
- }
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config);
-
- spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
-
- switch (phy_type) {
- case NES_PHY_TYPE_1G:
- ret = nes_init_1g_phy(nesdev, phy_type, phy_index);
- break;
- case NES_PHY_TYPE_ARGUS:
- case NES_PHY_TYPE_SFP_D:
- case NES_PHY_TYPE_KR:
- ret = nes_init_2025_phy(nesdev, phy_type, phy_index);
- break;
- }
-
- spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
-
- return ret;
-}
-
-
-/**
- * nes_replenish_nic_rq
- */
-static void nes_replenish_nic_rq(struct nes_vnic *nesvnic)
-{
- unsigned long flags;
- dma_addr_t bus_address;
- struct sk_buff *skb;
- struct nes_hw_nic_rq_wqe *nic_rqe;
- struct nes_hw_nic *nesnic;
- struct nes_device *nesdev;
- struct nes_rskb_cb *cb;
- u32 rx_wqes_posted = 0;
-
- nesnic = &nesvnic->nic;
- nesdev = nesvnic->nesdev;
- spin_lock_irqsave(&nesnic->rq_lock, flags);
- if (nesnic->replenishing_rq !=0) {
- if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
- (atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
- atomic_set(&nesvnic->rx_skb_timer_running, 1);
- spin_unlock_irqrestore(&nesnic->rq_lock, flags);
- nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
- add_timer(&nesvnic->rq_wqes_timer);
- } else
- spin_unlock_irqrestore(&nesnic->rq_lock, flags);
- return;
- }
- nesnic->replenishing_rq = 1;
- spin_unlock_irqrestore(&nesnic->rq_lock, flags);
- do {
- skb = dev_alloc_skb(nesvnic->max_frame_size);
- if (skb) {
- skb->dev = nesvnic->netdev;
-
- bus_address = pci_map_single(nesdev->pcidev,
- skb->data, nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->busaddr = bus_address;
- cb->maplen = nesvnic->max_frame_size;
-
- nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_head];
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] =
- cpu_to_le32(nesvnic->max_frame_size);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] =
- cpu_to_le32((u32)bus_address);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] =
- cpu_to_le32((u32)((u64)bus_address >> 32));
- nesnic->rx_skb[nesnic->rq_head] = skb;
- nesnic->rq_head++;
- nesnic->rq_head &= nesnic->rq_size - 1;
- atomic_dec(&nesvnic->rx_skbs_needed);
- barrier();
- if (++rx_wqes_posted == 255) {
- nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
- rx_wqes_posted = 0;
- }
- } else {
- spin_lock_irqsave(&nesnic->rq_lock, flags);
- if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
- (atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
- atomic_set(&nesvnic->rx_skb_timer_running, 1);
- spin_unlock_irqrestore(&nesnic->rq_lock, flags);
- nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
- add_timer(&nesvnic->rq_wqes_timer);
- } else
- spin_unlock_irqrestore(&nesnic->rq_lock, flags);
- break;
- }
- } while (atomic_read(&nesvnic->rx_skbs_needed));
- barrier();
- if (rx_wqes_posted)
- nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
- nesnic->replenishing_rq = 0;
-}
-
-
-/**
- * nes_rq_wqes_timeout
- */
-static void nes_rq_wqes_timeout(struct timer_list *t)
-{
- struct nes_vnic *nesvnic = from_timer(nesvnic, t, rq_wqes_timer);
- printk("%s: Timer fired.\n", __func__);
- atomic_set(&nesvnic->rx_skb_timer_running, 0);
- if (atomic_read(&nesvnic->rx_skbs_needed))
- nes_replenish_nic_rq(nesvnic);
-}
-
-
-/**
- * nes_init_nic_qp
- */
-int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_hw_nic_sq_wqe *nic_sqe;
- struct nes_hw_nic_qp_context *nic_context;
- struct sk_buff *skb;
- struct nes_hw_nic_rq_wqe *nic_rqe;
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- unsigned long flags;
- void *vmem;
- dma_addr_t pmem;
- u64 u64temp;
- int ret;
- u32 cqp_head;
- u32 counter;
- u32 wqe_count;
- struct nes_rskb_cb *cb;
- u8 jumbomode=0;
-
- /* Allocate fragment, SQ, RQ, and CQ; Reuse CEQ based on the PCI function */
- nesvnic->nic_mem_size = 256 +
- (NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag)) +
- (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe)) +
- (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe)) +
- (NES_NIC_WQ_SIZE * 2 * sizeof(struct nes_hw_nic_cqe)) +
- sizeof(struct nes_hw_nic_qp_context);
-
- nesvnic->nic_vbase = pci_zalloc_consistent(nesdev->pcidev,
- nesvnic->nic_mem_size,
- &nesvnic->nic_pbase);
- if (!nesvnic->nic_vbase) {
- nes_debug(NES_DBG_INIT, "Unable to allocate memory for NIC host descriptor rings\n");
- return -ENOMEM;
- }
- nes_debug(NES_DBG_INIT, "Allocated NIC QP structures at %p (phys = %016lX), size = %u.\n",
- nesvnic->nic_vbase, (unsigned long)nesvnic->nic_pbase, nesvnic->nic_mem_size);
-
- vmem = (void *)(((unsigned long)nesvnic->nic_vbase + (256 - 1)) &
- ~(unsigned long)(256 - 1));
- pmem = (dma_addr_t)(((unsigned long long)nesvnic->nic_pbase + (256 - 1)) &
- ~(unsigned long long)(256 - 1));
-
- /* Setup the first Fragment buffers */
- nesvnic->nic.first_frag_vbase = vmem;
-
- for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
- nesvnic->nic.frag_paddr[counter] = pmem;
- pmem += sizeof(struct nes_first_frag);
- }
-
- /* setup the SQ */
- vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag));
-
- nesvnic->nic.sq_vbase = (void *)vmem;
- nesvnic->nic.sq_pbase = pmem;
- nesvnic->nic.sq_head = 0;
- nesvnic->nic.sq_tail = 0;
- nesvnic->nic.sq_size = NES_NIC_WQ_SIZE;
- for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
- nic_sqe = &nesvnic->nic.sq_vbase[counter];
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_MISC_IDX] =
- cpu_to_le32(NES_NIC_SQ_WQE_DISABLE_CHKSUM |
- NES_NIC_SQ_WQE_COMPLETION);
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX] =
- cpu_to_le32((u32)NES_FIRST_FRAG_SIZE << 16);
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX] =
- cpu_to_le32((u32)nesvnic->nic.frag_paddr[counter]);
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX] =
- cpu_to_le32((u32)((u64)nesvnic->nic.frag_paddr[counter] >> 32));
- }
-
- nesvnic->get_cqp_request = nes_get_cqp_request;
- nesvnic->post_cqp_request = nes_post_cqp_request;
- nesvnic->mcrq_mcast_filter = NULL;
-
- spin_lock_init(&nesvnic->nic.rq_lock);
-
- /* setup the RQ */
- vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
- pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
-
-
- nesvnic->nic.rq_vbase = vmem;
- nesvnic->nic.rq_pbase = pmem;
- nesvnic->nic.rq_head = 0;
- nesvnic->nic.rq_tail = 0;
- nesvnic->nic.rq_size = NES_NIC_WQ_SIZE;
-
- /* setup the CQ */
- vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
- pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
-
- if (nesdev->nesadapter->netdev_count > 2)
- nesvnic->mcrq_qp_id = nesvnic->nic_index + 32;
- else
- nesvnic->mcrq_qp_id = nesvnic->nic.qp_id + 4;
-
- nesvnic->nic_cq.cq_vbase = vmem;
- nesvnic->nic_cq.cq_pbase = pmem;
- nesvnic->nic_cq.cq_head = 0;
- nesvnic->nic_cq.cq_size = NES_NIC_WQ_SIZE * 2;
-
- nesvnic->nic_cq.ce_handler = nes_nic_napi_ce_handler;
-
- /* Send CreateCQ request to CQP */
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- cqp_head = nesdev->cqp.sq_head;
-
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
- NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
- ((u32)nesvnic->nic_cq.cq_size << 16));
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(
- nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16));
- u64temp = (u64)nesvnic->nic_cq.cq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
- u64temp = (unsigned long)&nesvnic->nic_cq;
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = cpu_to_le32((u32)(u64temp >> 1));
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
- cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- /* Send CreateQP request to CQP */
- nic_context = (void *)(&nesvnic->nic_cq.cq_vbase[nesvnic->nic_cq.cq_size]);
- nic_context->context_words[NES_NIC_CTX_MISC_IDX] =
- cpu_to_le32((u32)NES_NIC_CTX_SIZE |
- ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 12));
- nes_debug(NES_DBG_INIT, "RX_WINDOW_BUFFER_PAGE_TABLE_SIZE = 0x%08X, RX_WINDOW_BUFFER_SIZE = 0x%08X\n",
- nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_PAGE_TABLE_SIZE),
- nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE));
- if (nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE) != 0) {
- nic_context->context_words[NES_NIC_CTX_MISC_IDX] |= cpu_to_le32(NES_NIC_BACK_STORE);
- }
-
- u64temp = (u64)nesvnic->nic.sq_pbase;
- nic_context->context_words[NES_NIC_CTX_SQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
- nic_context->context_words[NES_NIC_CTX_SQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
- u64temp = (u64)nesvnic->nic.rq_pbase;
- nic_context->context_words[NES_NIC_CTX_RQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
- nic_context->context_words[NES_NIC_CTX_RQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_CREATE_QP |
- NES_CQP_QP_TYPE_NIC);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesvnic->nic.qp_id);
- u64temp = (u64)nesvnic->nic_cq.cq_pbase +
- (nesvnic->nic_cq.cq_size * sizeof(struct nes_hw_nic_cqe));
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
- nesdev->cqp.sq_head = cqp_head;
-
- barrier();
-
- /* Ring doorbell (2 WQEs) */
- nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- nes_debug(NES_DBG_INIT, "Waiting for create NIC QP%u to complete.\n",
- nesvnic->nic.qp_id);
-
- ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_INIT, "Create NIC QP%u completed, wait_event_timeout ret = %u.\n",
- nesvnic->nic.qp_id, ret);
- if (!ret) {
- nes_debug(NES_DBG_INIT, "NIC QP%u create timeout expired\n", nesvnic->nic.qp_id);
- pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
- nesvnic->nic_pbase);
- return -EIO;
- }
-
- /* Populate the RQ */
- for (counter = 0; counter < (NES_NIC_WQ_SIZE - 1); counter++) {
- skb = dev_alloc_skb(nesvnic->max_frame_size);
- if (!skb) {
- nes_debug(NES_DBG_INIT, "%s: out of memory for receive skb\n", netdev->name);
-
- nes_destroy_nic_qp(nesvnic);
- return -ENOMEM;
- }
-
- skb->dev = netdev;
-
- pmem = pci_map_single(nesdev->pcidev, skb->data,
- nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->busaddr = pmem;
- cb->maplen = nesvnic->max_frame_size;
-
- nic_rqe = &nesvnic->nic.rq_vbase[counter];
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] = cpu_to_le32(nesvnic->max_frame_size);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] = cpu_to_le32((u32)pmem);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] = cpu_to_le32((u32)((u64)pmem >> 32));
- nesvnic->nic.rx_skb[counter] = skb;
- }
-
- wqe_count = NES_NIC_WQ_SIZE - 1;
- nesvnic->nic.rq_head = wqe_count;
- barrier();
- do {
- counter = min(wqe_count, ((u32)255));
- wqe_count -= counter;
- nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter << 24) | nesvnic->nic.qp_id);
- } while (wqe_count);
- timer_setup(&nesvnic->rq_wqes_timer, nes_rq_wqes_timeout, 0);
- nes_debug(NES_DBG_INIT, "NAPI support Enabled\n");
- if (nesdev->nesadapter->et_use_adaptive_rx_coalesce)
- {
- nes_nic_init_timer(nesdev);
- if (netdev->mtu > 1500)
- jumbomode = 1;
- nes_nic_init_timer_defaults(nesdev, jumbomode);
- }
- if ((nesdev->nesadapter->allow_unaligned_fpdus) &&
- (nes_init_mgt_qp(nesdev, netdev, nesvnic))) {
- nes_debug(NES_DBG_INIT, "%s: Out of memory for pau nic\n",
- netdev->name);
- nes_destroy_nic_qp(nesvnic);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-
-/**
- * nes_destroy_nic_qp
- */
-void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
-{
- u64 u64temp;
- dma_addr_t bus_address;
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_hw_nic_sq_wqe *nic_sqe;
- __le16 *wqe_fragment_length;
- u16 wqe_fragment_index;
- u32 cqp_head;
- u32 wqm_cfg0;
- unsigned long flags;
- struct sk_buff *rx_skb;
- struct nes_rskb_cb *cb;
- int ret;
-
- if (nesdev->nesadapter->allow_unaligned_fpdus)
- nes_destroy_mgt(nesvnic);
-
- /* clear wqe stall before destroying NIC QP */
- wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
- nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
-
- /* Free remaining NIC receive buffers */
- while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
- rx_skb = nesvnic->nic.rx_skb[nesvnic->nic.rq_tail];
- cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
- pci_unmap_single(nesdev->pcidev, cb->busaddr, cb->maplen,
- PCI_DMA_FROMDEVICE);
-
- dev_kfree_skb(nesvnic->nic.rx_skb[nesvnic->nic.rq_tail++]);
- nesvnic->nic.rq_tail &= (nesvnic->nic.rq_size - 1);
- }
-
- /* Free remaining NIC transmit buffers */
- while (nesvnic->nic.sq_head != nesvnic->nic.sq_tail) {
- nic_sqe = &nesvnic->nic.sq_vbase[nesvnic->nic.sq_tail];
- wqe_fragment_index = 1;
- wqe_fragment_length = (__le16 *)
- &nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
- /* bump past the vlan tag */
- wqe_fragment_length++;
- if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
- u64temp = (u64)le32_to_cpu(
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
- wqe_fragment_index*2]);
- u64temp += ((u64)le32_to_cpu(
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
- + wqe_fragment_index*2]))<<32;
- bus_address = (dma_addr_t)u64temp;
- if (test_and_clear_bit(nesvnic->nic.sq_tail,
- nesvnic->nic.first_frag_overflow)) {
- pci_unmap_single(nesdev->pcidev,
- bus_address,
- le16_to_cpu(wqe_fragment_length[
- wqe_fragment_index++]),
- PCI_DMA_TODEVICE);
- }
- for (; wqe_fragment_index < 5; wqe_fragment_index++) {
- if (wqe_fragment_length[wqe_fragment_index]) {
- u64temp = le32_to_cpu(
- nic_sqe->wqe_words[
- NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
- wqe_fragment_index*2]);
- u64temp += ((u64)le32_to_cpu(
- nic_sqe->wqe_words[
- NES_NIC_SQ_WQE_FRAG0_HIGH_IDX+
- wqe_fragment_index*2]))<<32;
- bus_address = (dma_addr_t)u64temp;
- pci_unmap_page(nesdev->pcidev,
- bus_address,
- le16_to_cpu(
- wqe_fragment_length[
- wqe_fragment_index]),
- PCI_DMA_TODEVICE);
- } else
- break;
- }
- }
- if (nesvnic->nic.tx_skb[nesvnic->nic.sq_tail])
- dev_kfree_skb(
- nesvnic->nic.tx_skb[nesvnic->nic.sq_tail]);
-
- nesvnic->nic.sq_tail = (nesvnic->nic.sq_tail + 1)
- & (nesvnic->nic.sq_size - 1);
- }
-
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
-
- /* Destroy NIC QP */
- cqp_head = nesdev->cqp.sq_head;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_NIC));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- nesvnic->nic.qp_id);
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
-
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
-
- /* Destroy NIC CQ */
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_DESTROY_CQ | ((u32)nesvnic->nic_cq.cq_size << 16)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- (nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16)));
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
-
- nesdev->cqp.sq_head = cqp_head;
- barrier();
-
- /* Ring doorbell (2 WQEs) */
- nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- nes_debug(NES_DBG_SHUTDOWN, "Waiting for CQP, cqp_head=%u, cqp.sq_head=%u,"
- " cqp.sq_tail=%u, cqp.sq_size=%u\n",
- cqp_head, nesdev->cqp.sq_head,
- nesdev->cqp.sq_tail, nesdev->cqp.sq_size);
-
- ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
- NES_EVENT_TIMEOUT);
-
- nes_debug(NES_DBG_SHUTDOWN, "Destroy NIC QP returned, wait_event_timeout ret = %u, cqp_head=%u,"
- " cqp.sq_head=%u, cqp.sq_tail=%u\n",
- ret, cqp_head, nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
- if (!ret) {
- nes_debug(NES_DBG_SHUTDOWN, "NIC QP%u destroy timeout expired\n",
- nesvnic->nic.qp_id);
- }
-
- pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
- nesvnic->nic_pbase);
-
- /* restore old wqm_cfg0 value */
- nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0);
-}
-
-/**
- * nes_napi_isr
- */
-int nes_napi_isr(struct nes_device *nesdev)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 int_stat;
-
- if (nesdev->napi_isr_ran) {
- /* interrupt status has already been read in ISR */
- int_stat = nesdev->int_stat;
- } else {
- int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
- nesdev->int_stat = int_stat;
- nesdev->napi_isr_ran = 1;
- }
-
- int_stat &= nesdev->int_req;
- /* iff NIC, process here, else wait for DPC */
- if ((int_stat) && ((int_stat & 0x0000ff00) == int_stat)) {
- nesdev->napi_isr_ran = 0;
- nes_write32(nesdev->regs + NES_INT_STAT,
- (int_stat &
- ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 | NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
-
- /* Process the CEQs */
- nes_process_ceq(nesdev, &nesdev->nesadapter->ceq[nesdev->nic_ceq_index]);
-
- if (unlikely((((nesadapter->et_rx_coalesce_usecs_irq) &&
- (!nesadapter->et_use_adaptive_rx_coalesce)) ||
- ((nesadapter->et_use_adaptive_rx_coalesce) &&
- (nesdev->deepcq_count > nesadapter->et_pkt_rate_low))))) {
- if ((nesdev->int_req & NES_INT_TIMER) == 0) {
- /* Enable Periodic timer interrupts */
- nesdev->int_req |= NES_INT_TIMER;
- /* ack any pending periodic timer interrupts so we don't get an immediate interrupt */
- /* TODO: need to also ack other unused periodic timer values, get from nesadapter */
- nes_write32(nesdev->regs+NES_TIMER_STAT,
- nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
- nes_write32(nesdev->regs+NES_INTF_INT_MASK,
- ~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
- }
-
- if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
- {
- nes_nic_init_timer(nesdev);
- }
- /* Enable interrupts, except CEQs */
- nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
- } else {
- /* Enable interrupts, make sure timer is off */
- nesdev->int_req &= ~NES_INT_TIMER;
- nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
- nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
- }
- nesdev->deepcq_count = 0;
- return 1;
- } else {
- return 0;
- }
-}
-
-static void process_critical_error(struct nes_device *nesdev)
-{
- u32 debug_error;
- u32 nes_idx_debug_error_masks0 = 0;
- u16 error_module = 0;
-
- debug_error = nes_read_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS);
- printk(KERN_ERR PFX "Critical Error reported by device!!! 0x%02X\n",
- (u16)debug_error);
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS,
- 0x01010000 | (debug_error & 0x0000ffff));
- if (crit_err_count++ > 10)
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 1 << 0x17);
- error_module = (u16) (debug_error & 0x1F00) >> 8;
- if (++nesdev->nesadapter->crit_error_count[error_module-1] >=
- nes_max_critical_error_count) {
- printk(KERN_ERR PFX "Masking off critical error for module "
- "0x%02X\n", (u16)error_module);
- nes_idx_debug_error_masks0 = nes_read_indexed(nesdev,
- NES_IDX_DEBUG_ERROR_MASKS0);
- nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0,
- nes_idx_debug_error_masks0 | (1 << error_module));
- }
-}
-/**
- * nes_dpc
- */
-void nes_dpc(unsigned long param)
-{
- struct nes_device *nesdev = (struct nes_device *)param;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 counter;
- u32 loop_counter = 0;
- u32 int_status_bit;
- u32 int_stat;
- u32 timer_stat;
- u32 temp_int_stat;
- u32 intf_int_stat;
- u32 processed_intf_int = 0;
- u16 processed_timer_int = 0;
- u16 completion_ints = 0;
- u16 timer_ints = 0;
-
- /* nes_debug(NES_DBG_ISR, "\n"); */
-
- do {
- timer_stat = 0;
- if (nesdev->napi_isr_ran) {
- nesdev->napi_isr_ran = 0;
- int_stat = nesdev->int_stat;
- } else
- int_stat = nes_read32(nesdev->regs+NES_INT_STAT);
- if (processed_intf_int != 0)
- int_stat &= nesdev->int_req & ~NES_INT_INTF;
- else
- int_stat &= nesdev->int_req;
- if (processed_timer_int == 0) {
- processed_timer_int = 1;
- if (int_stat & NES_INT_TIMER) {
- timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
- if ((timer_stat & nesdev->timer_int_req) == 0) {
- int_stat &= ~NES_INT_TIMER;
- }
- }
- } else {
- int_stat &= ~NES_INT_TIMER;
- }
-
- if (int_stat) {
- if (int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
- NES_INT_MAC1|NES_INT_MAC2 | NES_INT_MAC3)) {
- /* Ack the interrupts */
- nes_write32(nesdev->regs+NES_INT_STAT,
- (int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
- NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
- }
-
- temp_int_stat = int_stat;
- for (counter = 0, int_status_bit = 1; counter < 16; counter++) {
- if (int_stat & int_status_bit) {
- nes_process_ceq(nesdev, &nesadapter->ceq[counter]);
- temp_int_stat &= ~int_status_bit;
- completion_ints = 1;
- }
- if (!(temp_int_stat & 0x0000ffff))
- break;
- int_status_bit <<= 1;
- }
-
- /* Process the AEQ for this pci function */
- int_status_bit = 1 << (16 + PCI_FUNC(nesdev->pcidev->devfn));
- if (int_stat & int_status_bit) {
- nes_process_aeq(nesdev, &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)]);
- }
-
- /* Process the MAC interrupt for this pci function */
- int_status_bit = 1 << (24 + nesdev->mac_index);
- if (int_stat & int_status_bit) {
- nes_process_mac_intr(nesdev, nesdev->mac_index);
- }
-
- if (int_stat & NES_INT_TIMER) {
- if (timer_stat & nesdev->timer_int_req) {
- nes_write32(nesdev->regs + NES_TIMER_STAT,
- (timer_stat & nesdev->timer_int_req) |
- ~(nesdev->nesadapter->timer_int_req));
- timer_ints = 1;
- }
- }
-
- if (int_stat & NES_INT_INTF) {
- processed_intf_int = 1;
- intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
- intf_int_stat &= nesdev->intf_int_req;
- if (NES_INTF_INT_CRITERR & intf_int_stat) {
- process_critical_error(nesdev);
- }
- if (NES_INTF_INT_PCIERR & intf_int_stat) {
- printk(KERN_ERR PFX "PCI Error reported by device!!!\n");
- BUG();
- }
- if (NES_INTF_INT_AEQ_OFLOW & intf_int_stat) {
- printk(KERN_ERR PFX "AEQ Overflow reported by device!!!\n");
- BUG();
- }
- nes_write32(nesdev->regs+NES_INTF_INT_STAT, intf_int_stat);
- }
-
- if (int_stat & NES_INT_TSW) {
- }
- }
- /* Don't use the interface interrupt bit stay in loop */
- int_stat &= ~NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 |
- NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3;
- } while ((int_stat != 0) && (loop_counter++ < MAX_DPC_ITERATIONS));
-
- if (timer_ints == 1) {
- if ((nesadapter->et_rx_coalesce_usecs_irq) || (nesadapter->et_use_adaptive_rx_coalesce)) {
- if (completion_ints == 0) {
- nesdev->timer_only_int_count++;
- if (nesdev->timer_only_int_count>=nesadapter->timer_int_limit) {
- nesdev->timer_only_int_count = 0;
- nesdev->int_req &= ~NES_INT_TIMER;
- nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
- nes_write32(nesdev->regs + NES_INT_MASK, ~nesdev->int_req);
- } else {
- nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
- }
- } else {
- if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
- {
- nes_nic_init_timer(nesdev);
- }
- nesdev->timer_only_int_count = 0;
- nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
- }
- } else {
- nesdev->timer_only_int_count = 0;
- nesdev->int_req &= ~NES_INT_TIMER;
- nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
- nes_write32(nesdev->regs+NES_TIMER_STAT,
- nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
- nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
- }
- } else {
- if ( (completion_ints == 1) &&
- (((nesadapter->et_rx_coalesce_usecs_irq) &&
- (!nesadapter->et_use_adaptive_rx_coalesce)) ||
- ((nesdev->deepcq_count > nesadapter->et_pkt_rate_low) &&
- (nesadapter->et_use_adaptive_rx_coalesce) )) ) {
- /* nes_debug(NES_DBG_ISR, "Enabling periodic timer interrupt.\n" ); */
- nesdev->timer_only_int_count = 0;
- nesdev->int_req |= NES_INT_TIMER;
- nes_write32(nesdev->regs+NES_TIMER_STAT,
- nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
- nes_write32(nesdev->regs+NES_INTF_INT_MASK,
- ~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
- nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
- } else {
- nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
- }
- }
- nesdev->deepcq_count = 0;
-}
-
-
-/**
- * nes_process_ceq
- */
-static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq)
-{
- u64 u64temp;
- struct nes_hw_cq *cq;
- u32 head;
- u32 ceq_size;
-
- /* nes_debug(NES_DBG_CQ, "\n"); */
- head = ceq->ceq_head;
- ceq_size = ceq->ceq_size;
-
- do {
- if (le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]) &
- NES_CEQE_VALID) {
- u64temp = (((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]))) << 32) |
- ((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_LOW_IDX])));
- u64temp <<= 1;
- cq = *((struct nes_hw_cq **)&u64temp);
- /* nes_debug(NES_DBG_CQ, "pCQ = %p\n", cq); */
- barrier();
- ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX] = 0;
-
- /* call the event handler */
- cq->ce_handler(nesdev, cq);
-
- if (++head >= ceq_size)
- head = 0;
- } else {
- break;
- }
-
- } while (1);
-
- ceq->ceq_head = head;
-}
-
-
-/**
- * nes_process_aeq
- */
-static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq)
-{
- /* u64 u64temp; */
- u32 head;
- u32 aeq_size;
- u32 aeqe_misc;
- u32 aeqe_cq_id;
- struct nes_hw_aeqe volatile *aeqe;
-
- head = aeq->aeq_head;
- aeq_size = aeq->aeq_size;
-
- do {
- aeqe = &aeq->aeq_vbase[head];
- if ((le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]) & NES_AEQE_VALID) == 0)
- break;
- aeqe_misc = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
- aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
- if (aeqe_misc & (NES_AEQE_QP|NES_AEQE_CQ)) {
- if (aeqe_cq_id >= NES_FIRST_QPN) {
- /* dealing with an accelerated QP related AE */
- /*
- * u64temp = (((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX]))) << 32) |
- * ((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX])));
- */
- nes_process_iwarp_aeqe(nesdev, (struct nes_hw_aeqe *)aeqe);
- } else {
- /* TODO: dealing with a CQP related AE */
- nes_debug(NES_DBG_AEQ, "Processing CQP related AE, misc = 0x%04X\n",
- (u16)(aeqe_misc >> 16));
- }
- }
-
- aeqe->aeqe_words[NES_AEQE_MISC_IDX] = 0;
-
- if (++head >= aeq_size)
- head = 0;
-
- nes_write32(nesdev->regs + NES_AEQ_ALLOC, 1 << 16);
- }
- while (1);
- aeq->aeq_head = head;
-}
-
-static void nes_reset_link(struct nes_device *nesdev, u32 mac_index)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 reset_value;
- u32 i=0;
- u32 u32temp;
-
- if (nesadapter->hw_rev == NE020_REV) {
- return;
- }
- mh_detected++;
-
- reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
-
- if ((mac_index == 0) || ((mac_index == 1) && (nesadapter->OneG_Mode)))
- reset_value |= 0x0000001d;
- else
- reset_value |= 0x0000002d;
-
- if (4 <= (nesadapter->link_interrupt_count[mac_index] / ((u16)NES_MAX_LINK_INTERRUPTS))) {
- if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
- nesadapter->link_interrupt_count[0] = 0;
- nesadapter->link_interrupt_count[1] = 0;
- u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
- if (0x00000040 & u32temp)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
- else
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
-
- reset_value |= 0x0000003d;
- }
- nesadapter->link_interrupt_count[mac_index] = 0;
- }
-
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
-
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
- & 0x00000040) != 0x00000040) && (i++ < 5000));
-
- if (0x0000003d == (reset_value & 0x0000003d)) {
- u32 pcs_control_status0, pcs_control_status1;
-
- for (i = 0; i < 10; i++) {
- pcs_control_status0 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0);
- pcs_control_status1 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
- if (((0x0F000000 == (pcs_control_status0 & 0x0F000000))
- && (pcs_control_status0 & 0x00100000))
- || ((0x0F000000 == (pcs_control_status1 & 0x0F000000))
- && (pcs_control_status1 & 0x00100000)))
- continue;
- else
- break;
- }
- if (10 == i) {
- u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
- if (0x00000040 & u32temp)
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
- else
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
-
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
-
- while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET)
- & 0x00000040) != 0x00000040) && (i++ < 5000));
- }
- }
-}
-
-/**
- * nes_process_mac_intr
- */
-static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
-{
- unsigned long flags;
- u32 pcs_control_status;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_vnic *nesvnic;
- u32 mac_status;
- u32 mac_index = nesdev->mac_index;
- u32 u32temp;
- u16 phy_data;
- u16 temp_phy_data;
- u32 pcs_val = 0x0f0f0000;
- u32 pcs_mask = 0x0f1f0000;
- u32 cdr_ctrl;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- if (nesadapter->mac_sw_state[mac_number] != NES_MAC_SW_IDLE) {
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- return;
- }
- nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT;
-
- /* ack the MAC interrupt */
- mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200));
- /* Clear the interrupt */
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200), mac_status);
-
- nes_debug(NES_DBG_PHY, "MAC%u interrupt status = 0x%X.\n", mac_number, mac_status);
-
- if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) {
- nesdev->link_status_interrupts++;
- if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS)))
- nes_reset_link(nesdev, mac_index);
-
- /* read the PHY interrupt status register */
- if ((nesadapter->OneG_Mode) &&
- (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
- do {
- nes_read_1G_phy_reg(nesdev, 0x1a,
- nesadapter->phy_index[mac_index], &phy_data);
- nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1a = 0x%X.\n",
- nesadapter->phy_index[mac_index], phy_data);
- } while (phy_data&0x8000);
-
- temp_phy_data = 0;
- do {
- nes_read_1G_phy_reg(nesdev, 0x11,
- nesadapter->phy_index[mac_index], &phy_data);
- nes_debug(NES_DBG_PHY, "Phy%d data from register 0x11 = 0x%X.\n",
- nesadapter->phy_index[mac_index], phy_data);
- if (temp_phy_data == phy_data)
- break;
- temp_phy_data = phy_data;
- } while (1);
-
- nes_read_1G_phy_reg(nesdev, 0x1e,
- nesadapter->phy_index[mac_index], &phy_data);
- nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1e = 0x%X.\n",
- nesadapter->phy_index[mac_index], phy_data);
-
- nes_read_1G_phy_reg(nesdev, 1,
- nesadapter->phy_index[mac_index], &phy_data);
- nes_debug(NES_DBG_PHY, "1G phy%u data from register 1 = 0x%X\n",
- nesadapter->phy_index[mac_index], phy_data);
-
- if (temp_phy_data & 0x1000) {
- nes_debug(NES_DBG_PHY, "The Link is up according to the PHY\n");
- phy_data = 4;
- } else {
- nes_debug(NES_DBG_PHY, "The Link is down according to the PHY\n");
- }
- }
- nes_debug(NES_DBG_PHY, "Eth SERDES Common Status: 0=0x%08X, 1=0x%08X\n",
- nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0),
- nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0+0x200));
-
- if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_PUMA_1G) {
- switch (mac_index) {
- case 1:
- case 3:
- pcs_control_status = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
- break;
- default:
- pcs_control_status = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0);
- break;
- }
- } else {
- pcs_control_status = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
- pcs_control_status = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
- }
-
- nes_debug(NES_DBG_PHY, "PCS PHY Control/Status%u: 0x%08X\n",
- mac_index, pcs_control_status);
- if ((nesadapter->OneG_Mode) &&
- (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
- u32temp = 0x01010000;
- if (nesadapter->port_count > 2) {
- u32temp |= 0x02020000;
- }
- if ((pcs_control_status & u32temp)!= u32temp) {
- phy_data = 0;
- nes_debug(NES_DBG_PHY, "PCS says the link is down\n");
- }
- } else {
- switch (nesadapter->phy_type[mac_index]) {
- case NES_PHY_TYPE_ARGUS:
- case NES_PHY_TYPE_SFP_D:
- case NES_PHY_TYPE_KR:
- /* clear the alarms */
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0x0008);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc001);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc002);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc005);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc006);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9004);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9005);
- /* check link status */
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
-
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
- nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
- phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
-
- phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
-
- nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
- __func__, phy_data, nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
- break;
-
- case NES_PHY_TYPE_PUMA_1G:
- if (mac_index < 2)
- pcs_val = pcs_mask = 0x01010000;
- else
- pcs_val = pcs_mask = 0x02020000;
- /* fall through */
- default:
- phy_data = (pcs_val == (pcs_control_status & pcs_mask)) ? 0x4 : 0x0;
- break;
- }
- }
-
- if (phy_data & 0x0004) {
- if (wide_ppm_offset &&
- (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
- (nesadapter->hw_rev != NE020_REV)) {
- cdr_ctrl = nes_read_indexed(nesdev,
- NES_IDX_ETH_SERDES_CDR_CONTROL0 +
- mac_index * 0x200);
- nes_write_indexed(nesdev,
- NES_IDX_ETH_SERDES_CDR_CONTROL0 +
- mac_index * 0x200,
- cdr_ctrl | 0x000F0000);
- }
- nesadapter->mac_link_down[mac_index] = 0;
- list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
- nes_debug(NES_DBG_PHY, "The Link is UP!!. linkup was %d\n",
- nesvnic->linkup);
- if (nesvnic->linkup == 0) {
- printk(PFX "The Link is now up for port %s, netdev %p.\n",
- nesvnic->netdev->name, nesvnic->netdev);
- if (netif_queue_stopped(nesvnic->netdev))
- netif_start_queue(nesvnic->netdev);
- nesvnic->linkup = 1;
- netif_carrier_on(nesvnic->netdev);
-
- spin_lock(&nesvnic->port_ibevent_lock);
- if (nesvnic->of_device_registered) {
- if (nesdev->iw_status == 0) {
- nesdev->iw_status = 1;
- nes_port_ibevent(nesvnic);
- }
- }
- spin_unlock(&nesvnic->port_ibevent_lock);
- }
- }
- } else {
- if (wide_ppm_offset &&
- (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
- (nesadapter->hw_rev != NE020_REV)) {
- cdr_ctrl = nes_read_indexed(nesdev,
- NES_IDX_ETH_SERDES_CDR_CONTROL0 +
- mac_index * 0x200);
- nes_write_indexed(nesdev,
- NES_IDX_ETH_SERDES_CDR_CONTROL0 +
- mac_index * 0x200,
- cdr_ctrl & 0xFFF0FFFF);
- }
- nesadapter->mac_link_down[mac_index] = 1;
- list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
- nes_debug(NES_DBG_PHY, "The Link is Down!!. linkup was %d\n",
- nesvnic->linkup);
- if (nesvnic->linkup == 1) {
- printk(PFX "The Link is now down for port %s, netdev %p.\n",
- nesvnic->netdev->name, nesvnic->netdev);
- if (!(netif_queue_stopped(nesvnic->netdev)))
- netif_stop_queue(nesvnic->netdev);
- nesvnic->linkup = 0;
- netif_carrier_off(nesvnic->netdev);
-
- spin_lock(&nesvnic->port_ibevent_lock);
- if (nesvnic->of_device_registered) {
- if (nesdev->iw_status == 1) {
- nesdev->iw_status = 0;
- nes_port_ibevent(nesvnic);
- }
- }
- spin_unlock(&nesvnic->port_ibevent_lock);
- }
- }
- }
- if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_SFP_D) {
- nesdev->link_recheck = 1;
- mod_delayed_work(system_wq, &nesdev->work,
- NES_LINK_RECHECK_DELAY);
- }
- }
-
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
-
- nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_IDLE;
-}
-
-void nes_recheck_link_status(struct work_struct *work)
-{
- unsigned long flags;
- struct nes_device *nesdev = container_of(work, struct nes_device, work.work);
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_vnic *nesvnic;
- u32 mac_index = nesdev->mac_index;
- u16 phy_data;
- u16 temp_phy_data;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
-
- /* check link status */
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
-
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
- nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
- phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
-
- phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
-
- nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
- __func__, phy_data,
- nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
-
- if (phy_data & 0x0004) {
- nesadapter->mac_link_down[mac_index] = 0;
- list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
- if (nesvnic->linkup == 0) {
- printk(PFX "The Link is now up for port %s, netdev %p.\n",
- nesvnic->netdev->name, nesvnic->netdev);
- if (netif_queue_stopped(nesvnic->netdev))
- netif_start_queue(nesvnic->netdev);
- nesvnic->linkup = 1;
- netif_carrier_on(nesvnic->netdev);
-
- spin_lock(&nesvnic->port_ibevent_lock);
- if (nesvnic->of_device_registered) {
- if (nesdev->iw_status == 0) {
- nesdev->iw_status = 1;
- nes_port_ibevent(nesvnic);
- }
- }
- spin_unlock(&nesvnic->port_ibevent_lock);
- }
- }
-
- } else {
- nesadapter->mac_link_down[mac_index] = 1;
- list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
- if (nesvnic->linkup == 1) {
- printk(PFX "The Link is now down for port %s, netdev %p.\n",
- nesvnic->netdev->name, nesvnic->netdev);
- if (!(netif_queue_stopped(nesvnic->netdev)))
- netif_stop_queue(nesvnic->netdev);
- nesvnic->linkup = 0;
- netif_carrier_off(nesvnic->netdev);
-
- spin_lock(&nesvnic->port_ibevent_lock);
- if (nesvnic->of_device_registered) {
- if (nesdev->iw_status == 1) {
- nesdev->iw_status = 0;
- nes_port_ibevent(nesvnic);
- }
- }
- spin_unlock(&nesvnic->port_ibevent_lock);
- }
- }
- }
- if (nesdev->link_recheck++ < NES_LINK_RECHECK_MAX)
- schedule_delayed_work(&nesdev->work, NES_LINK_RECHECK_DELAY);
- else
- nesdev->link_recheck = 0;
-
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
-}
-
-
-static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
-{
- struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
-
- napi_schedule(&nesvnic->napi);
-}
-
-
-/* The MAX_RQES_TO_PROCESS defines how many max read requests to complete before
-* getting out of nic_ce_handler
-*/
-#define MAX_RQES_TO_PROCESS 384
-
-/**
- * nes_nic_ce_handler
- */
-void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
-{
- u64 u64temp;
- dma_addr_t bus_address;
- struct nes_hw_nic *nesnic;
- struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_nic_rq_wqe *nic_rqe;
- struct nes_hw_nic_sq_wqe *nic_sqe;
- struct sk_buff *skb;
- struct sk_buff *rx_skb;
- struct nes_rskb_cb *cb;
- __le16 *wqe_fragment_length;
- u32 head;
- u32 cq_size;
- u32 rx_pkt_size;
- u32 cqe_count=0;
- u32 cqe_errv;
- u32 cqe_misc;
- u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
- u16 vlan_tag;
- u16 pkt_type;
- u16 rqes_processed = 0;
- u8 sq_cqes = 0;
-
- head = cq->cq_head;
- cq_size = cq->cq_size;
- cq->cqes_pending = 1;
- do {
- if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]) &
- NES_NIC_CQE_VALID) {
- nesnic = &nesvnic->nic;
- cqe_misc = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]);
- if (cqe_misc & NES_NIC_CQE_SQ) {
- sq_cqes++;
- wqe_fragment_index = 1;
- nic_sqe = &nesnic->sq_vbase[nesnic->sq_tail];
- skb = nesnic->tx_skb[nesnic->sq_tail];
- wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
- /* bump past the vlan tag */
- wqe_fragment_length++;
- if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
- u64temp = (u64) le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
- wqe_fragment_index * 2]);
- u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX +
- wqe_fragment_index * 2])) << 32;
- bus_address = (dma_addr_t)u64temp;
- if (test_and_clear_bit(nesnic->sq_tail, nesnic->first_frag_overflow)) {
- pci_unmap_single(nesdev->pcidev,
- bus_address,
- le16_to_cpu(wqe_fragment_length[wqe_fragment_index++]),
- PCI_DMA_TODEVICE);
- }
- for (; wqe_fragment_index < 5; wqe_fragment_index++) {
- if (wqe_fragment_length[wqe_fragment_index]) {
- u64temp = le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
- wqe_fragment_index * 2]);
- u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
- + wqe_fragment_index * 2])) <<32;
- bus_address = (dma_addr_t)u64temp;
- pci_unmap_page(nesdev->pcidev,
- bus_address,
- le16_to_cpu(wqe_fragment_length[wqe_fragment_index]),
- PCI_DMA_TODEVICE);
- } else
- break;
- }
- }
- if (skb)
- dev_kfree_skb_any(skb);
- nesnic->sq_tail++;
- nesnic->sq_tail &= nesnic->sq_size-1;
- if (sq_cqes > 128) {
- barrier();
- /* restart the queue if it had been stopped */
- if (netif_queue_stopped(nesvnic->netdev))
- netif_wake_queue(nesvnic->netdev);
- sq_cqes = 0;
- }
- } else {
- rqes_processed ++;
-
- cq->rx_cqes_completed++;
- cq->rx_pkts_indicated++;
- rx_pkt_size = cqe_misc & 0x0000ffff;
- nic_rqe = &nesnic->rq_vbase[nesnic->rq_tail];
- /* Get the skb */
- rx_skb = nesnic->rx_skb[nesnic->rq_tail];
- nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_tail];
- bus_address = (dma_addr_t)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX]);
- bus_address += ((u64)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX])) << 32;
- pci_unmap_single(nesdev->pcidev, bus_address,
- nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
- cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
- cb->busaddr = 0;
- /* rx_skb->tail = rx_skb->data + rx_pkt_size; */
- /* rx_skb->len = rx_pkt_size; */
- rx_skb->len = 0; /* TODO: see if this is necessary */
- skb_put(rx_skb, rx_pkt_size);
- rx_skb->protocol = eth_type_trans(rx_skb, nesvnic->netdev);
- nesnic->rq_tail++;
- nesnic->rq_tail &= nesnic->rq_size - 1;
-
- atomic_inc(&nesvnic->rx_skbs_needed);
- if (atomic_read(&nesvnic->rx_skbs_needed) > (nesvnic->nic.rq_size>>1)) {
- nes_write32(nesdev->regs+NES_CQE_ALLOC,
- cq->cq_number | (cqe_count << 16));
- /* nesadapter->tune_timer.cq_count += cqe_count; */
- nesdev->currcq_count += cqe_count;
- cqe_count = 0;
- nes_replenish_nic_rq(nesvnic);
- }
- pkt_type = (u16)(le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX]));
- cqe_errv = (cqe_misc & NES_NIC_CQE_ERRV_MASK) >> NES_NIC_CQE_ERRV_SHIFT;
- rx_skb->ip_summed = CHECKSUM_NONE;
-
- if ((NES_PKT_TYPE_TCPV4_BITS == (pkt_type & NES_PKT_TYPE_TCPV4_MASK)) ||
- (NES_PKT_TYPE_UDPV4_BITS == (pkt_type & NES_PKT_TYPE_UDPV4_MASK))) {
- if ((cqe_errv &
- (NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_TCPUDP_CSUM_ERR |
- NES_NIC_ERRV_BITS_IPH_ERR | NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
- if (nesvnic->netdev->features & NETIF_F_RXCSUM)
- rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else
- nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
- " errv = 0x%X, pkt_type = 0x%X.\n",
- nesvnic->netdev->name, cqe_errv, pkt_type);
-
- } else if ((pkt_type & NES_PKT_TYPE_IPV4_MASK) == NES_PKT_TYPE_IPV4_BITS) {
- if ((cqe_errv &
- (NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_IPH_ERR |
- NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
- if (nesvnic->netdev->features & NETIF_F_RXCSUM) {
- rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
- /* nes_debug(NES_DBG_CQ, "%s: Reporting successfully checksummed IPv4 packet.\n",
- nesvnic->netdev->name); */
- }
- } else
- nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
- " errv = 0x%X, pkt_type = 0x%X.\n",
- nesvnic->netdev->name, cqe_errv, pkt_type);
- }
- /* nes_debug(NES_DBG_CQ, "pkt_type=%x, APBVT_MASK=%x\n",
- pkt_type, (pkt_type & NES_PKT_TYPE_APBVT_MASK)); */
-
- if ((pkt_type & NES_PKT_TYPE_APBVT_MASK) == NES_PKT_TYPE_APBVT_BITS) {
- if (nes_cm_recv(rx_skb, nesvnic->netdev))
- rx_skb = NULL;
- }
- if (rx_skb == NULL)
- goto skip_rx_indicate0;
-
-
- if (cqe_misc & NES_NIC_CQE_TAG_VALID) {
- vlan_tag = (u16)(le32_to_cpu(
- cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX])
- >> 16);
- nes_debug(NES_DBG_CQ, "%s: Reporting stripped VLAN packet. Tag = 0x%04X\n",
- nesvnic->netdev->name, vlan_tag);
-
- __vlan_hwaccel_put_tag(rx_skb, htons(ETH_P_8021Q), vlan_tag);
- }
- napi_gro_receive(&nesvnic->napi, rx_skb);
-
-skip_rx_indicate0:
- ;
- /* nesvnic->netstats.rx_packets++; */
- /* nesvnic->netstats.rx_bytes += rx_pkt_size; */
- }
-
- cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX] = 0;
- /* Accounting... */
- cqe_count++;
- if (++head >= cq_size)
- head = 0;
- if (cqe_count == 255) {
- /* Replenish Nic CQ */
- nes_write32(nesdev->regs+NES_CQE_ALLOC,
- cq->cq_number | (cqe_count << 16));
- /* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
- nesdev->currcq_count += cqe_count;
- cqe_count = 0;
- }
-
- if (cq->rx_cqes_completed >= nesvnic->budget)
- break;
- } else {
- cq->cqes_pending = 0;
- break;
- }
-
- } while (1);
-
- if (sq_cqes) {
- barrier();
- /* restart the queue if it had been stopped */
- if (netif_queue_stopped(nesvnic->netdev))
- netif_wake_queue(nesvnic->netdev);
- }
- cq->cq_head = head;
- /* nes_debug(NES_DBG_CQ, "CQ%u Processed = %u cqes, new head = %u.\n",
- cq->cq_number, cqe_count, cq->cq_head); */
- cq->cqe_allocs_pending = cqe_count;
- if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
- {
- /* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
- nesdev->currcq_count += cqe_count;
- nes_nic_tune_timer(nesdev);
- }
- if (atomic_read(&nesvnic->rx_skbs_needed))
- nes_replenish_nic_rq(nesvnic);
-}
-
-
-
-/**
- * nes_cqp_ce_handler
- */
-static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
-{
- u64 u64temp;
- unsigned long flags;
- struct nes_hw_cqp *cqp = NULL;
- struct nes_cqp_request *cqp_request;
- struct nes_hw_cqp_wqe *cqp_wqe;
- u32 head;
- u32 cq_size;
- u32 cqe_count=0;
- u32 error_code;
- u32 opcode;
- u32 ctx_index;
- /* u32 counter; */
-
- head = cq->cq_head;
- cq_size = cq->cq_size;
-
- do {
- /* process the CQE */
- /* nes_debug(NES_DBG_CQP, "head=%u cqe_words=%08X\n", head,
- le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])); */
-
- opcode = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]);
- if (opcode & NES_CQE_VALID) {
- cqp = &nesdev->cqp;
-
- error_code = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX]);
- if (error_code) {
- nes_debug(NES_DBG_CQP, "Bad Completion code for opcode 0x%02X from CQP,"
- " Major/Minor codes = 0x%04X:%04X.\n",
- le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])&0x3f,
- (u16)(error_code >> 16),
- (u16)error_code);
- }
-
- u64temp = (((u64)(le32_to_cpu(cq->cq_vbase[head].
- cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]))) << 32) |
- ((u64)(le32_to_cpu(cq->cq_vbase[head].
- cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX])));
-
- cqp_request = (struct nes_cqp_request *)(unsigned long)u64temp;
- if (cqp_request) {
- if (cqp_request->waiting) {
- /* nes_debug(NES_DBG_CQP, "%s: Waking up requestor\n"); */
- cqp_request->major_code = (u16)(error_code >> 16);
- cqp_request->minor_code = (u16)error_code;
- barrier();
- cqp_request->request_done = 1;
- wake_up(&cqp_request->waitq);
- nes_put_cqp_request(nesdev, cqp_request);
- } else {
- if (cqp_request->callback)
- cqp_request->cqp_callback(nesdev, cqp_request);
- nes_free_cqp_request(nesdev, cqp_request);
- }
- } else {
- wake_up(&nesdev->cqp.waitq);
- }
-
- cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0;
- nes_write32(nesdev->regs + NES_CQE_ALLOC, cq->cq_number | (1 << 16));
- if (++cqp->sq_tail >= cqp->sq_size)
- cqp->sq_tail = 0;
-
- /* Accounting... */
- cqe_count++;
- if (++head >= cq_size)
- head = 0;
- } else {
- break;
- }
- } while (1);
- cq->cq_head = head;
-
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- while ((!list_empty(&nesdev->cqp_pending_reqs)) &&
- ((((nesdev->cqp.sq_tail+nesdev->cqp.sq_size)-nesdev->cqp.sq_head) &
- (nesdev->cqp.sq_size - 1)) != 1)) {
- cqp_request = list_entry(nesdev->cqp_pending_reqs.next,
- struct nes_cqp_request, list);
- list_del_init(&cqp_request->list);
- head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[head];
- memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
- barrier();
-
- opcode = le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX]);
- if ((opcode & NES_CQP_OPCODE_MASK) == NES_CQP_DOWNLOAD_SEGMENT)
- ctx_index = NES_CQP_WQE_DL_COMP_CTX_LOW_IDX;
- else
- ctx_index = NES_CQP_WQE_COMP_CTX_LOW_IDX;
- cqp_wqe->wqe_words[ctx_index] =
- cpu_to_le32((u32)((unsigned long)cqp_request));
- cqp_wqe->wqe_words[ctx_index + 1] =
- cpu_to_le32((u32)(upper_32_bits((unsigned long)cqp_request)));
- nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) put on CQPs SQ wqe%u.\n",
- cqp_request, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f, head);
- /* Ring doorbell (1 WQEs) */
- barrier();
- nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
- }
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-
- /* Arm the CCQ */
- nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- cq->cq_number);
- nes_read32(nesdev->regs+NES_CQE_ALLOC);
-}
-
-static u8 *locate_mpa(u8 *pkt, u32 aeq_info)
-{
- if (aeq_info & NES_AEQE_Q2_DATA_ETHERNET) {
- /* skip over ethernet header */
- pkt += ETH_HLEN;
-
- /* Skip over IP and TCP headers */
- pkt += 4 * (pkt[0] & 0x0f);
- pkt += 4 * ((pkt[12] >> 4) & 0x0f);
- }
- return pkt;
-}
-
-/* Determine if incoming error pkt is rdma layer */
-static u32 iwarp_opcode(struct nes_qp *nesqp, u32 aeq_info)
-{
- u8 *pkt;
- u16 *mpa;
- u32 opcode = 0xffffffff;
-
- if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
- pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
- mpa = (u16 *)locate_mpa(pkt, aeq_info);
- opcode = be16_to_cpu(mpa[1]) & 0xf;
- }
-
- return opcode;
-}
-
-/* Build iWARP terminate header */
-static int nes_bld_terminate_hdr(struct nes_qp *nesqp, u16 async_event_id, u32 aeq_info)
-{
- u8 *pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
- u16 ddp_seg_len;
- int copy_len = 0;
- u8 is_tagged = 0;
- u8 flush_code = 0;
- struct nes_terminate_hdr *termhdr;
-
- termhdr = (struct nes_terminate_hdr *)nesqp->hwqp.q2_vbase;
- memset(termhdr, 0, 64);
-
- if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
-
- /* Use data from offending packet to fill in ddp & rdma hdrs */
- pkt = locate_mpa(pkt, aeq_info);
- ddp_seg_len = be16_to_cpu(*(u16 *)pkt);
- if (ddp_seg_len) {
- copy_len = 2;
- termhdr->hdrct = DDP_LEN_FLAG;
- if (pkt[2] & 0x80) {
- is_tagged = 1;
- if (ddp_seg_len >= TERM_DDP_LEN_TAGGED) {
- copy_len += TERM_DDP_LEN_TAGGED;
- termhdr->hdrct |= DDP_HDR_FLAG;
- }
- } else {
- if (ddp_seg_len >= TERM_DDP_LEN_UNTAGGED) {
- copy_len += TERM_DDP_LEN_UNTAGGED;
- termhdr->hdrct |= DDP_HDR_FLAG;
- }
-
- if (ddp_seg_len >= (TERM_DDP_LEN_UNTAGGED + TERM_RDMA_LEN)) {
- if ((pkt[3] & RDMA_OPCODE_MASK) == RDMA_READ_REQ_OPCODE) {
- copy_len += TERM_RDMA_LEN;
- termhdr->hdrct |= RDMA_HDR_FLAG;
- }
- }
- }
- }
- }
-
- switch (async_event_id) {
- case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
- switch (iwarp_opcode(nesqp, aeq_info)) {
- case IWARP_OPCODE_WRITE:
- flush_code = IB_WC_LOC_PROT_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
- termhdr->error_code = DDP_TAGGED_INV_STAG;
- break;
- default:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_INV_STAG;
- }
- break;
- case NES_AEQE_AEID_AMP_INVALID_STAG:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_INV_STAG;
- break;
- case NES_AEQE_AEID_AMP_BAD_QP:
- flush_code = IB_WC_LOC_QP_OP_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_QN;
- break;
- case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
- case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
- switch (iwarp_opcode(nesqp, aeq_info)) {
- case IWARP_OPCODE_SEND_INV:
- case IWARP_OPCODE_SEND_SE_INV:
- flush_code = IB_WC_REM_OP_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
- termhdr->error_code = RDMAP_CANT_INV_STAG;
- break;
- default:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_INV_STAG;
- }
- break;
- case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
- if (aeq_info & (NES_AEQE_Q2_DATA_ETHERNET | NES_AEQE_Q2_DATA_MPA)) {
- flush_code = IB_WC_LOC_PROT_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
- termhdr->error_code = DDP_TAGGED_BOUNDS;
- } else {
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_INV_BOUNDS;
- }
- break;
- case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
- case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
- case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_ACCESS;
- break;
- case NES_AEQE_AEID_AMP_TO_WRAP:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_TO_WRAP;
- break;
- case NES_AEQE_AEID_AMP_BAD_PD:
- switch (iwarp_opcode(nesqp, aeq_info)) {
- case IWARP_OPCODE_WRITE:
- flush_code = IB_WC_LOC_PROT_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
- termhdr->error_code = DDP_TAGGED_UNASSOC_STAG;
- break;
- case IWARP_OPCODE_SEND_INV:
- case IWARP_OPCODE_SEND_SE_INV:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_CANT_INV_STAG;
- break;
- default:
- flush_code = IB_WC_REM_ACCESS_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
- termhdr->error_code = RDMAP_UNASSOC_STAG;
- }
- break;
- case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
- flush_code = IB_WC_LOC_LEN_ERR;
- termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
- termhdr->error_code = MPA_MARKER;
- break;
- case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
- flush_code = IB_WC_GENERAL_ERR;
- termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
- termhdr->error_code = MPA_CRC;
- break;
- case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
- case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
- flush_code = IB_WC_LOC_LEN_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
- termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
- break;
- case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
- case NES_AEQE_AEID_DDP_NO_L_BIT:
- flush_code = IB_WC_FATAL_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
- termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
- break;
- case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
- case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
- flush_code = IB_WC_GENERAL_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_MSN_RANGE;
- break;
- case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
- flush_code = IB_WC_LOC_LEN_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_TOO_LONG;
- break;
- case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
- flush_code = IB_WC_GENERAL_ERR;
- if (is_tagged) {
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
- termhdr->error_code = DDP_TAGGED_INV_DDP_VER;
- } else {
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_DDP_VER;
- }
- break;
- case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
- flush_code = IB_WC_GENERAL_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_MO;
- break;
- case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
- flush_code = IB_WC_REM_OP_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_MSN_NO_BUF;
- break;
- case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
- flush_code = IB_WC_GENERAL_ERR;
- termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
- termhdr->error_code = DDP_UNTAGGED_INV_QN;
- break;
- case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
- flush_code = IB_WC_GENERAL_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
- termhdr->error_code = RDMAP_INV_RDMAP_VER;
- break;
- case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
- flush_code = IB_WC_LOC_QP_OP_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
- termhdr->error_code = RDMAP_UNEXPECTED_OP;
- break;
- default:
- flush_code = IB_WC_FATAL_ERR;
- termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
- termhdr->error_code = RDMAP_UNSPECIFIED;
- break;
- }
-
- if (copy_len)
- memcpy(termhdr + 1, pkt, copy_len);
-
- if ((flush_code) && ((NES_AEQE_INBOUND_RDMA & aeq_info) == 0)) {
- if (aeq_info & NES_AEQE_SQ)
- nesqp->term_sq_flush_code = flush_code;
- else
- nesqp->term_rq_flush_code = flush_code;
- }
-
- return sizeof(struct nes_terminate_hdr) + copy_len;
-}
-
-static void nes_terminate_connection(struct nes_device *nesdev, struct nes_qp *nesqp,
- struct nes_hw_aeqe *aeqe, enum ib_event_type eventtype)
-{
- u64 context;
- unsigned long flags;
- u32 aeq_info;
- u16 async_event_id;
- u8 tcp_state;
- u8 iwarp_state;
- u32 termlen = 0;
- u32 mod_qp_flags = NES_CQP_QP_IWARP_STATE_TERMINATE |
- NES_CQP_QP_TERM_DONT_SEND_FIN;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- if (nesqp->term_flags & NES_TERM_SENT)
- return; /* Sanity check */
-
- aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
- tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
- iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
- async_event_id = (u16)aeq_info;
-
- context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
- aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
- if (!context) {
- WARN_ON(!context);
- return;
- }
-
- nesqp = (struct nes_qp *)(unsigned long)context;
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- nesqp->terminate_eventtype = eventtype;
- spin_unlock_irqrestore(&nesqp->lock, flags);
-
- if (nesadapter->send_term_ok)
- termlen = nes_bld_terminate_hdr(nesqp, async_event_id, aeq_info);
- else
- mod_qp_flags |= NES_CQP_QP_TERM_DONT_SEND_TERM_MSG;
-
- if (!nesdev->iw_status) {
- nesqp->term_flags = NES_TERM_DONE;
- nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_ERROR, 0, 0);
- nes_cm_disconn(nesqp);
- } else {
- nes_terminate_start_timer(nesqp);
- nesqp->term_flags |= NES_TERM_SENT;
- nes_hw_modify_qp(nesdev, nesqp, mod_qp_flags, termlen, 0);
- }
-}
-
-static void nes_terminate_send_fin(struct nes_device *nesdev,
- struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
-{
- u32 aeq_info;
- u16 async_event_id;
- u8 tcp_state;
- u8 iwarp_state;
- unsigned long flags;
-
- aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
- tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
- iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
- async_event_id = (u16)aeq_info;
-
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- spin_unlock_irqrestore(&nesqp->lock, flags);
-
- /* Send the fin only */
- nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_TERMINATE |
- NES_CQP_QP_TERM_DONT_SEND_TERM_MSG, 0, 0);
-}
-
-/* Cleanup after a terminate sent or received */
-static void nes_terminate_done(struct nes_qp *nesqp, int timeout_occurred)
-{
- u32 next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR;
- unsigned long flags;
- struct nes_vnic *nesvnic = to_nesvnic(nesqp->ibqp.device);
- struct nes_device *nesdev = nesvnic->nesdev;
- u8 first_time = 0;
-
- spin_lock_irqsave(&nesqp->lock, flags);
- if (nesqp->hte_added) {
- nesqp->hte_added = 0;
- next_iwarp_state |= NES_CQP_QP_DEL_HTE;
- }
-
- first_time = (nesqp->term_flags & NES_TERM_DONE) == 0;
- nesqp->term_flags |= NES_TERM_DONE;
- spin_unlock_irqrestore(&nesqp->lock, flags);
-
- /* Make sure we go through this only once */
- if (first_time) {
- if (timeout_occurred == 0)
- del_timer(&nesqp->terminate_timer);
- else
- next_iwarp_state |= NES_CQP_QP_RESET;
-
- nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
- nes_cm_disconn(nesqp);
- }
-}
-
-static void nes_terminate_received(struct nes_device *nesdev,
- struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
-{
- u32 aeq_info;
- u8 *pkt;
- u32 *mpa;
- u8 ddp_ctl;
- u8 rdma_ctl;
- u16 aeq_id = 0;
-
- aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
- if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
- /* Terminate is not a performance path so the silicon */
- /* did not validate the frame - do it now */
- pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
- mpa = (u32 *)locate_mpa(pkt, aeq_info);
- ddp_ctl = (be32_to_cpu(mpa[0]) >> 8) & 0xff;
- rdma_ctl = be32_to_cpu(mpa[0]) & 0xff;
- if ((ddp_ctl & 0xc0) != 0x40)
- aeq_id = NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC;
- else if ((ddp_ctl & 0x03) != 1)
- aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION;
- else if (be32_to_cpu(mpa[2]) != 2)
- aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_QN;
- else if (be32_to_cpu(mpa[3]) != 1)
- aeq_id = NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN;
- else if (be32_to_cpu(mpa[4]) != 0)
- aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_MO;
- else if ((rdma_ctl & 0xc0) != 0x40)
- aeq_id = NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION;
-
- if (aeq_id) {
- /* Bad terminate recvd - send back a terminate */
- aeq_info = (aeq_info & 0xffff0000) | aeq_id;
- aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
- nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
- return;
- }
- }
-
- nesqp->term_flags |= NES_TERM_RCVD;
- nesqp->terminate_eventtype = IB_EVENT_QP_FATAL;
- nes_terminate_start_timer(nesqp);
- nes_terminate_send_fin(nesdev, nesqp, aeqe);
-}
-
-/* Timeout routine in case terminate fails to complete */
-void nes_terminate_timeout(struct timer_list *t)
-{
- struct nes_qp *nesqp = from_timer(nesqp, t, terminate_timer);
-
- nes_terminate_done(nesqp, 1);
-}
-
-/* Set a timer in case hw cannot complete the terminate sequence */
-static void nes_terminate_start_timer(struct nes_qp *nesqp)
-{
- mod_timer(&nesqp->terminate_timer, (jiffies + HZ));
-}
-
-/**
- * nes_process_iwarp_aeqe
- */
-static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
- struct nes_hw_aeqe *aeqe)
-{
- u64 context;
- unsigned long flags;
- struct nes_qp *nesqp;
- struct nes_hw_cq *hw_cq;
- struct nes_cq *nescq;
- int resource_allocated;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 aeq_info;
- u32 next_iwarp_state = 0;
- u32 aeqe_cq_id;
- u16 async_event_id;
- u8 tcp_state;
- u8 iwarp_state;
- struct ib_event ibevent;
-
- nes_debug(NES_DBG_AEQ, "\n");
- aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
- if ((NES_AEQE_INBOUND_RDMA & aeq_info) || (!(NES_AEQE_QP & aeq_info))) {
- context = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX]);
- context += ((u64)le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX])) << 32;
- } else {
- context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
- aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
- BUG_ON(!context);
- }
-
- /* context is nesqp unless async_event_id == CQ ERROR */
- nesqp = (struct nes_qp *)(unsigned long)context;
- async_event_id = (u16)aeq_info;
- tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
- iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
- nes_debug(NES_DBG_AEQ, "aeid = 0x%04X, qp-cq id = %d, aeqe = %p,"
- " Tcp state = %s, iWARP state = %s\n",
- async_event_id,
- le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), aeqe,
- nes_tcp_state_str[tcp_state], nes_iwarp_state_str[iwarp_state]);
-
- aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
- if (aeq_info & NES_AEQE_QP) {
- if (!nes_is_resource_allocated(nesadapter,
- nesadapter->allocated_qps,
- aeqe_cq_id))
- return;
- }
-
- switch (async_event_id) {
- case NES_AEQE_AEID_LLP_FIN_RECEIVED:
- if (nesqp->term_flags)
- return; /* Ignore it, wait for close complete */
-
- if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
- if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
- (nesqp->ibqp_state == IB_QPS_RTS)) {
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING;
- nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
- spin_unlock_irqrestore(&nesqp->lock, flags);
- nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
- nes_cm_disconn(nesqp);
- }
- nesqp->cm_id->add_ref(nesqp->cm_id);
- schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp,
- NES_TIMER_TYPE_CLOSE, 1, 0);
- nes_debug(NES_DBG_AEQ, "QP%u Not decrementing QP refcount (%d),"
- " need ae to finish up, original_last_aeq = 0x%04X."
- " last_aeq = 0x%04X, scheduling timer. TCP state = %d\n",
- nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount),
- async_event_id, nesqp->last_aeq, tcp_state);
- }
- break;
- case NES_AEQE_AEID_LLP_CLOSE_COMPLETE:
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- spin_unlock_irqrestore(&nesqp->lock, flags);
- nes_cm_disconn(nesqp);
- break;
-
- case NES_AEQE_AEID_RESET_SENT:
- tcp_state = NES_AEQE_TCP_STATE_CLOSED;
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- nesqp->hte_added = 0;
- spin_unlock_irqrestore(&nesqp->lock, flags);
- next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR | NES_CQP_QP_DEL_HTE;
- nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
- nes_cm_disconn(nesqp);
- break;
-
- case NES_AEQE_AEID_LLP_CONNECTION_RESET:
- if (atomic_read(&nesqp->close_timer_started))
- return;
- spin_lock_irqsave(&nesqp->lock, flags);
- nesqp->hw_iwarp_state = iwarp_state;
- nesqp->hw_tcp_state = tcp_state;
- nesqp->last_aeq = async_event_id;
- spin_unlock_irqrestore(&nesqp->lock, flags);
- nes_cm_disconn(nesqp);
- break;
-
- case NES_AEQE_AEID_TERMINATE_SENT:
- nes_terminate_send_fin(nesdev, nesqp, aeqe);
- break;
-
- case NES_AEQE_AEID_LLP_TERMINATE_RECEIVED:
- nes_terminate_received(nesdev, nesqp, aeqe);
- break;
-
- case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
- case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
- case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
- case NES_AEQE_AEID_AMP_INVALID_STAG:
- case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
- case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
- case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
- case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
- case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
- case NES_AEQE_AEID_AMP_TO_WRAP:
- printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_ACCESS_ERR\n",
- nesqp->hwqp.qp_id, async_event_id);
- nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_ACCESS_ERR);
- break;
-
- case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
- case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
- case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
- case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
- if (iwarp_opcode(nesqp, aeq_info) > IWARP_OPCODE_TERM) {
- aeq_info &= 0xffff0000;
- aeq_info |= NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE;
- aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
- }
- /* fall through */
- case NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE:
- case NES_AEQE_AEID_LLP_TOO_MANY_RETRIES:
- case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
- case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
- case NES_AEQE_AEID_AMP_BAD_QP:
- case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
- case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
- case NES_AEQE_AEID_DDP_NO_L_BIT:
- case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
- case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
- case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
- case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
- case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
- case NES_AEQE_AEID_AMP_BAD_PD:
- case NES_AEQE_AEID_AMP_FASTREG_SHARED:
- case NES_AEQE_AEID_AMP_FASTREG_VALID_STAG:
- case NES_AEQE_AEID_AMP_FASTREG_MW_STAG:
- case NES_AEQE_AEID_AMP_FASTREG_INVALID_RIGHTS:
- case NES_AEQE_AEID_AMP_FASTREG_PBL_TABLE_OVERFLOW:
- case NES_AEQE_AEID_AMP_FASTREG_INVALID_LENGTH:
- case NES_AEQE_AEID_AMP_INVALIDATE_SHARED:
- case NES_AEQE_AEID_AMP_INVALIDATE_MR_WITH_BOUND_WINDOWS:
- case NES_AEQE_AEID_AMP_MWBIND_VALID_STAG:
- case NES_AEQE_AEID_AMP_MWBIND_OF_MR_STAG:
- case NES_AEQE_AEID_AMP_MWBIND_TO_ZERO_BASED_STAG:
- case NES_AEQE_AEID_AMP_MWBIND_TO_MW_STAG:
- case NES_AEQE_AEID_AMP_MWBIND_INVALID_RIGHTS:
- case NES_AEQE_AEID_AMP_MWBIND_INVALID_BOUNDS:
- case NES_AEQE_AEID_AMP_MWBIND_TO_INVALID_PARENT:
- case NES_AEQE_AEID_AMP_MWBIND_BIND_DISABLED:
- case NES_AEQE_AEID_BAD_CLOSE:
- case NES_AEQE_AEID_RDMA_READ_WHILE_ORD_ZERO:
- case NES_AEQE_AEID_STAG_ZERO_INVALID:
- case NES_AEQE_AEID_ROE_INVALID_RDMA_READ_REQUEST:
- case NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
- printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_FATAL\n",
- nesqp->hwqp.qp_id, async_event_id);
- print_ip(nesqp->cm_node);
- if (!atomic_read(&nesqp->close_timer_started))
- nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
- break;
-
- case NES_AEQE_AEID_CQ_OPERATION_ERROR:
- context <<= 1;
- nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u, %p\n",
- le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), (void *)(unsigned long)context);
- resource_allocated = nes_is_resource_allocated(nesadapter, nesadapter->allocated_cqs,
- le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
- if (resource_allocated) {
- printk(KERN_ERR PFX "%s: Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u\n",
- __func__, le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
- hw_cq = (struct nes_hw_cq *)(unsigned long)context;
- if (hw_cq) {
- nescq = container_of(hw_cq, struct nes_cq, hw_cq);
- if (nescq->ibcq.event_handler) {
- ibevent.device = nescq->ibcq.device;
- ibevent.event = IB_EVENT_CQ_ERR;
- ibevent.element.cq = &nescq->ibcq;
- nescq->ibcq.event_handler(&ibevent, nescq->ibcq.cq_context);
- }
- }
- }
- break;
-
- default:
- nes_debug(NES_DBG_AEQ, "Processing an iWARP related AE for QP, misc = 0x%04X\n",
- async_event_id);
- break;
- }
-
-}
-
-/**
- * nes_iwarp_ce_handler
- */
-void nes_iwarp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *hw_cq)
-{
- struct nes_cq *nescq = container_of(hw_cq, struct nes_cq, hw_cq);
-
- /* nes_debug(NES_DBG_CQ, "Processing completion event for iWARP CQ%u.\n",
- nescq->hw_cq.cq_number); */
- nes_write32(nesdev->regs+NES_CQ_ACK, nescq->hw_cq.cq_number);
-
- if (nescq->ibcq.comp_handler)
- nescq->ibcq.comp_handler(&nescq->ibcq, nescq->ibcq.cq_context);
-
- return;
-}
-
-
-/**
- * nes_manage_apbvt()
- */
-int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
- u32 nic_index, u32 add_port)
-{
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- int ret = 0;
- u16 major_code;
-
- /* Send manage APBVT request to CQP */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- nes_debug(NES_DBG_QP, "%s APBV for local port=%u(0x%04x), nic_index=%u\n",
- (add_port == NES_MANAGE_APBVT_ADD) ? "ADD" : "DEL",
- accel_local_port, accel_local_port, nic_index);
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, (NES_CQP_MANAGE_APBVT |
- ((add_port == NES_MANAGE_APBVT_ADD) ? NES_CQP_APBVT_ADD : 0)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- ((nic_index << NES_CQP_APBVT_NIC_SHIFT) | accel_local_port));
-
- nes_debug(NES_DBG_QP, "Waiting for CQP completion for APBVT.\n");
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- if (add_port == NES_MANAGE_APBVT_ADD)
- ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_QP, "Completed, ret=%u, CQP Major:Minor codes = 0x%04X:0x%04X\n",
- ret, cqp_request->major_code, cqp_request->minor_code);
- major_code = cqp_request->major_code;
-
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (!ret)
- return -ETIME;
- else if (major_code)
- return -EIO;
- else
- return 0;
-}
-
-
-/**
- * nes_manage_arp_cache
- */
-void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr,
- u32 ip_addr, u32 action)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev;
- struct nes_cqp_request *cqp_request;
- int arp_index;
-
- nesdev = nesvnic->nesdev;
- arp_index = nes_arp_table(nesdev, ip_addr, mac_addr, action);
- if (arp_index == -1) {
- return;
- }
-
- /* update the ARP entry */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_NETDEV, "Failed to get a cqp_request.\n");
- return;
- }
- cqp_request->waiting = 0;
- cqp_wqe = &cqp_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
- NES_CQP_MANAGE_ARP_CACHE | NES_CQP_ARP_PERM);
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(
- (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_CQP_ARP_AEQ_INDEX_SHIFT);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(arp_index);
-
- if (action == NES_ARP_ADD) {
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_ARP_VALID);
- cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = cpu_to_le32(
- (((u32)mac_addr[2]) << 24) | (((u32)mac_addr[3]) << 16) |
- (((u32)mac_addr[4]) << 8) | (u32)mac_addr[5]);
- cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = cpu_to_le32(
- (((u32)mac_addr[0]) << 8) | (u32)mac_addr[1]);
- } else {
- cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = 0;
- cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = 0;
- }
-
- nes_debug(NES_DBG_NETDEV, "Not waiting for CQP, cqp.sq_head=%u, cqp.sq_tail=%u\n",
- nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
-
- atomic_set(&cqp_request->refcount, 1);
- nes_post_cqp_request(nesdev, cqp_request);
-}
-
-
-/**
- * flush_wqes
- */
-void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
- u32 which_wq, u32 wait_completion)
-{
- struct nes_cqp_request *cqp_request;
- struct nes_hw_cqp_wqe *cqp_wqe;
- u32 sq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
- u32 rq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
- int ret;
-
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
- return;
- }
- if (wait_completion) {
- cqp_request->waiting = 1;
- atomic_set(&cqp_request->refcount, 2);
- } else {
- cqp_request->waiting = 0;
- }
- cqp_wqe = &cqp_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- /* If wqe in error was identified, set code to be put into cqe */
- if ((nesqp->term_sq_flush_code) && (which_wq & NES_CQP_FLUSH_SQ)) {
- which_wq |= NES_CQP_FLUSH_MAJ_MIN;
- sq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_sq_flush_code;
- nesqp->term_sq_flush_code = 0;
- }
-
- if ((nesqp->term_rq_flush_code) && (which_wq & NES_CQP_FLUSH_RQ)) {
- which_wq |= NES_CQP_FLUSH_MAJ_MIN;
- rq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_rq_flush_code;
- nesqp->term_rq_flush_code = 0;
- }
-
- if (which_wq & NES_CQP_FLUSH_MAJ_MIN) {
- cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_SQ_CODE] = cpu_to_le32(sq_code);
- cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_RQ_CODE] = cpu_to_le32(rq_code);
- }
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] =
- cpu_to_le32(NES_CQP_FLUSH_WQES | which_wq);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesqp->hwqp.qp_id);
-
- nes_post_cqp_request(nesdev, cqp_request);
-
- if (wait_completion) {
- /* Wait for CQP */
- ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_QP, "Flush SQ QP WQEs completed, ret=%u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X\n",
- ret, cqp_request->major_code, cqp_request->minor_code);
- nes_put_cqp_request(nesdev, cqp_request);
- }
-}
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
deleted file mode 100644
index 3c56470816a8..000000000000
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ /dev/null
@@ -1,1380 +0,0 @@
-/*
-* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
-*
-* This software is available to you under a choice of one of two
-* licenses. You may choose to be licensed under the terms of the GNU
-* General Public License (GPL) Version 2, available from the file
-* COPYING in the main directory of this source tree, or the
-* OpenIB.org BSD license below:
-*
-* Redistribution and use in source and binary forms, with or
-* without modification, are permitted provided that the following
-* conditions are met:
-*
-* - Redistributions of source code must retain the above
-* copyright notice, this list of conditions and the following
-* disclaimer.
-*
-* - Redistributions in binary form must reproduce the above
-* copyright notice, this list of conditions and the following
-* disclaimer in the documentation and/or other materials
-* provided with the distribution.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*/
-
-#ifndef __NES_HW_H
-#define __NES_HW_H
-
-#define NES_PHY_TYPE_CX4 1
-#define NES_PHY_TYPE_1G 2
-#define NES_PHY_TYPE_ARGUS 4
-#define NES_PHY_TYPE_PUMA_1G 5
-#define NES_PHY_TYPE_PUMA_10G 6
-#define NES_PHY_TYPE_GLADIUS 7
-#define NES_PHY_TYPE_SFP_D 8
-#define NES_PHY_TYPE_KR 9
-
-#define NES_MULTICAST_PF_MAX 8
-#define NES_A0 3
-
-#define NES_ENABLE_PAU 0x07000001
-#define NES_DISABLE_PAU 0x07000000
-#define NES_PAU_COUNTER 10
-#define NES_CQP_OPCODE_MASK 0x3f
-
-enum pci_regs {
- NES_INT_STAT = 0x0000,
- NES_INT_MASK = 0x0004,
- NES_INT_PENDING = 0x0008,
- NES_INTF_INT_STAT = 0x000C,
- NES_INTF_INT_MASK = 0x0010,
- NES_TIMER_STAT = 0x0014,
- NES_PERIODIC_CONTROL = 0x0018,
- NES_ONE_SHOT_CONTROL = 0x001C,
- NES_EEPROM_COMMAND = 0x0020,
- NES_EEPROM_DATA = 0x0024,
- NES_FLASH_COMMAND = 0x0028,
- NES_FLASH_DATA = 0x002C,
- NES_SOFTWARE_RESET = 0x0030,
- NES_CQ_ACK = 0x0034,
- NES_WQE_ALLOC = 0x0040,
- NES_CQE_ALLOC = 0x0044,
- NES_AEQ_ALLOC = 0x0048
-};
-
-enum indexed_regs {
- NES_IDX_CREATE_CQP_LOW = 0x0000,
- NES_IDX_CREATE_CQP_HIGH = 0x0004,
- NES_IDX_QP_CONTROL = 0x0040,
- NES_IDX_FLM_CONTROL = 0x0080,
- NES_IDX_INT_CPU_STATUS = 0x00a0,
- NES_IDX_GPR_TRIGGER = 0x00bc,
- NES_IDX_GPIO_CONTROL = 0x00f0,
- NES_IDX_GPIO_DATA = 0x00f4,
- NES_IDX_GPR2 = 0x010c,
- NES_IDX_TCP_CONFIG0 = 0x01e4,
- NES_IDX_TCP_TIMER_CONFIG = 0x01ec,
- NES_IDX_TCP_NOW = 0x01f0,
- NES_IDX_QP_MAX_CFG_SIZES = 0x0200,
- NES_IDX_QP_CTX_SIZE = 0x0218,
- NES_IDX_TCP_TIMER_SIZE0 = 0x0238,
- NES_IDX_TCP_TIMER_SIZE1 = 0x0240,
- NES_IDX_ARP_CACHE_SIZE = 0x0258,
- NES_IDX_CQ_CTX_SIZE = 0x0260,
- NES_IDX_MRT_SIZE = 0x0278,
- NES_IDX_PBL_REGION_SIZE = 0x0280,
- NES_IDX_IRRQ_COUNT = 0x02b0,
- NES_IDX_RX_WINDOW_BUFFER_PAGE_TABLE_SIZE = 0x02f0,
- NES_IDX_RX_WINDOW_BUFFER_SIZE = 0x0300,
- NES_IDX_DST_IP_ADDR = 0x0400,
- NES_IDX_PCIX_DIAG = 0x08e8,
- NES_IDX_MPP_DEBUG = 0x0a00,
- NES_IDX_PORT_RX_DISCARDS = 0x0a30,
- NES_IDX_PORT_TX_DISCARDS = 0x0a34,
- NES_IDX_MPP_LB_DEBUG = 0x0b00,
- NES_IDX_DENALI_CTL_22 = 0x1058,
- NES_IDX_MAC_TX_CONTROL = 0x2000,
- NES_IDX_MAC_TX_CONFIG = 0x2004,
- NES_IDX_MAC_TX_PAUSE_QUANTA = 0x2008,
- NES_IDX_MAC_RX_CONTROL = 0x200c,
- NES_IDX_MAC_RX_CONFIG = 0x2010,
- NES_IDX_MAC_EXACT_MATCH_BOTTOM = 0x201c,
- NES_IDX_MAC_MDIO_CONTROL = 0x2084,
- NES_IDX_MAC_TX_OCTETS_LOW = 0x2100,
- NES_IDX_MAC_TX_OCTETS_HIGH = 0x2104,
- NES_IDX_MAC_TX_FRAMES_LOW = 0x2108,
- NES_IDX_MAC_TX_FRAMES_HIGH = 0x210c,
- NES_IDX_MAC_TX_PAUSE_FRAMES = 0x2118,
- NES_IDX_MAC_TX_ERRORS = 0x2138,
- NES_IDX_MAC_RX_OCTETS_LOW = 0x213c,
- NES_IDX_MAC_RX_OCTETS_HIGH = 0x2140,
- NES_IDX_MAC_RX_FRAMES_LOW = 0x2144,
- NES_IDX_MAC_RX_FRAMES_HIGH = 0x2148,
- NES_IDX_MAC_RX_BC_FRAMES_LOW = 0x214c,
- NES_IDX_MAC_RX_MC_FRAMES_HIGH = 0x2150,
- NES_IDX_MAC_RX_PAUSE_FRAMES = 0x2154,
- NES_IDX_MAC_RX_SHORT_FRAMES = 0x2174,
- NES_IDX_MAC_RX_OVERSIZED_FRAMES = 0x2178,
- NES_IDX_MAC_RX_JABBER_FRAMES = 0x217c,
- NES_IDX_MAC_RX_CRC_ERR_FRAMES = 0x2180,
- NES_IDX_MAC_RX_LENGTH_ERR_FRAMES = 0x2184,
- NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES = 0x2188,
- NES_IDX_MAC_INT_STATUS = 0x21f0,
- NES_IDX_MAC_INT_MASK = 0x21f4,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 = 0x2800,
- NES_IDX_PHY_PCS_CONTROL_STATUS1 = 0x2a00,
- NES_IDX_ETH_SERDES_COMMON_CONTROL0 = 0x2808,
- NES_IDX_ETH_SERDES_COMMON_CONTROL1 = 0x2a08,
- NES_IDX_ETH_SERDES_COMMON_STATUS0 = 0x280c,
- NES_IDX_ETH_SERDES_COMMON_STATUS1 = 0x2a0c,
- NES_IDX_ETH_SERDES_TX_EMP0 = 0x2810,
- NES_IDX_ETH_SERDES_TX_EMP1 = 0x2a10,
- NES_IDX_ETH_SERDES_TX_DRIVE0 = 0x2814,
- NES_IDX_ETH_SERDES_TX_DRIVE1 = 0x2a14,
- NES_IDX_ETH_SERDES_RX_MODE0 = 0x2818,
- NES_IDX_ETH_SERDES_RX_MODE1 = 0x2a18,
- NES_IDX_ETH_SERDES_RX_SIGDET0 = 0x281c,
- NES_IDX_ETH_SERDES_RX_SIGDET1 = 0x2a1c,
- NES_IDX_ETH_SERDES_BYPASS0 = 0x2820,
- NES_IDX_ETH_SERDES_BYPASS1 = 0x2a20,
- NES_IDX_ETH_SERDES_LOOPBACK_CONTROL0 = 0x2824,
- NES_IDX_ETH_SERDES_LOOPBACK_CONTROL1 = 0x2a24,
- NES_IDX_ETH_SERDES_RX_EQ_CONTROL0 = 0x2828,
- NES_IDX_ETH_SERDES_RX_EQ_CONTROL1 = 0x2a28,
- NES_IDX_ETH_SERDES_RX_EQ_STATUS0 = 0x282c,
- NES_IDX_ETH_SERDES_RX_EQ_STATUS1 = 0x2a2c,
- NES_IDX_ETH_SERDES_CDR_RESET0 = 0x2830,
- NES_IDX_ETH_SERDES_CDR_RESET1 = 0x2a30,
- NES_IDX_ETH_SERDES_CDR_CONTROL0 = 0x2834,
- NES_IDX_ETH_SERDES_CDR_CONTROL1 = 0x2a34,
- NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE0 = 0x2838,
- NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE1 = 0x2a38,
- NES_IDX_ENDNODE0_NSTAT_RX_DISCARD = 0x3080,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO = 0x3000,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI = 0x3004,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO = 0x3008,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI = 0x300c,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO = 0x7000,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI = 0x7004,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO = 0x7008,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI = 0x700c,
- NES_IDX_WQM_CONFIG0 = 0x5000,
- NES_IDX_WQM_CONFIG1 = 0x5004,
- NES_IDX_CM_CONFIG = 0x5100,
- NES_IDX_NIC_LOGPORT_TO_PHYPORT = 0x6000,
- NES_IDX_NIC_PHYPORT_TO_USW = 0x6008,
- NES_IDX_NIC_ACTIVE = 0x6010,
- NES_IDX_NIC_UNICAST_ALL = 0x6018,
- NES_IDX_NIC_MULTICAST_ALL = 0x6020,
- NES_IDX_NIC_MULTICAST_ENABLE = 0x6028,
- NES_IDX_NIC_BROADCAST_ON = 0x6030,
- NES_IDX_USED_CHUNKS_TX = 0x60b0,
- NES_IDX_TX_POOL_SIZE = 0x60b8,
- NES_IDX_QUAD_HASH_TABLE_SIZE = 0x6148,
- NES_IDX_PERFECT_FILTER_LOW = 0x6200,
- NES_IDX_PERFECT_FILTER_HIGH = 0x6204,
- NES_IDX_IPV4_TCP_REXMITS = 0x7080,
- NES_IDX_DEBUG_ERROR_CONTROL_STATUS = 0x913c,
- NES_IDX_DEBUG_ERROR_MASKS0 = 0x9140,
- NES_IDX_DEBUG_ERROR_MASKS1 = 0x9144,
- NES_IDX_DEBUG_ERROR_MASKS2 = 0x9148,
- NES_IDX_DEBUG_ERROR_MASKS3 = 0x914c,
- NES_IDX_DEBUG_ERROR_MASKS4 = 0x9150,
- NES_IDX_DEBUG_ERROR_MASKS5 = 0x9154,
-};
-
-#define NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE 1
-#define NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE (1 << 17)
-
-enum nes_cqp_opcodes {
- NES_CQP_CREATE_QP = 0x00,
- NES_CQP_MODIFY_QP = 0x01,
- NES_CQP_DESTROY_QP = 0x02,
- NES_CQP_CREATE_CQ = 0x03,
- NES_CQP_MODIFY_CQ = 0x04,
- NES_CQP_DESTROY_CQ = 0x05,
- NES_CQP_ALLOCATE_STAG = 0x09,
- NES_CQP_REGISTER_STAG = 0x0a,
- NES_CQP_QUERY_STAG = 0x0b,
- NES_CQP_REGISTER_SHARED_STAG = 0x0c,
- NES_CQP_DEALLOCATE_STAG = 0x0d,
- NES_CQP_MANAGE_ARP_CACHE = 0x0f,
- NES_CQP_DOWNLOAD_SEGMENT = 0x10,
- NES_CQP_SUSPEND_QPS = 0x11,
- NES_CQP_UPLOAD_CONTEXT = 0x13,
- NES_CQP_CREATE_CEQ = 0x16,
- NES_CQP_DESTROY_CEQ = 0x18,
- NES_CQP_CREATE_AEQ = 0x19,
- NES_CQP_DESTROY_AEQ = 0x1b,
- NES_CQP_LMI_ACCESS = 0x20,
- NES_CQP_FLUSH_WQES = 0x22,
- NES_CQP_MANAGE_APBVT = 0x23,
- NES_CQP_MANAGE_QUAD_HASH = 0x25
-};
-
-enum nes_cqp_wqe_word_idx {
- NES_CQP_WQE_OPCODE_IDX = 0,
- NES_CQP_WQE_ID_IDX = 1,
- NES_CQP_WQE_COMP_CTX_LOW_IDX = 2,
- NES_CQP_WQE_COMP_CTX_HIGH_IDX = 3,
- NES_CQP_WQE_COMP_SCRATCH_LOW_IDX = 4,
- NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX = 5,
-};
-
-enum nes_cqp_wqe_word_download_idx { /* format differs from other cqp ops */
- NES_CQP_WQE_DL_OPCODE_IDX = 0,
- NES_CQP_WQE_DL_COMP_CTX_LOW_IDX = 1,
- NES_CQP_WQE_DL_COMP_CTX_HIGH_IDX = 2,
- NES_CQP_WQE_DL_LENGTH_0_TOTAL_IDX = 3
- /* For index values 4-15 use NES_NIC_SQ_WQE_ values */
-};
-
-enum nes_cqp_cq_wqeword_idx {
- NES_CQP_CQ_WQE_PBL_LOW_IDX = 6,
- NES_CQP_CQ_WQE_PBL_HIGH_IDX = 7,
- NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX = 8,
- NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX = 9,
- NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX = 10,
-};
-
-enum nes_cqp_stag_wqeword_idx {
- NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX = 1,
- NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX = 6,
- NES_CQP_STAG_WQE_LEN_LOW_IDX = 7,
- NES_CQP_STAG_WQE_STAG_IDX = 8,
- NES_CQP_STAG_WQE_VA_LOW_IDX = 10,
- NES_CQP_STAG_WQE_VA_HIGH_IDX = 11,
- NES_CQP_STAG_WQE_PA_LOW_IDX = 12,
- NES_CQP_STAG_WQE_PA_HIGH_IDX = 13,
- NES_CQP_STAG_WQE_PBL_LEN_IDX = 14
-};
-
-#define NES_CQP_OP_LOGICAL_PORT_SHIFT 26
-#define NES_CQP_OP_IWARP_STATE_SHIFT 28
-#define NES_CQP_OP_TERMLEN_SHIFT 28
-
-enum nes_cqp_qp_bits {
- NES_CQP_QP_ARP_VALID = (1<<8),
- NES_CQP_QP_WINBUF_VALID = (1<<9),
- NES_CQP_QP_CONTEXT_VALID = (1<<10),
- NES_CQP_QP_ORD_VALID = (1<<11),
- NES_CQP_QP_WINBUF_DATAIND_EN = (1<<12),
- NES_CQP_QP_VIRT_WQS = (1<<13),
- NES_CQP_QP_DEL_HTE = (1<<14),
- NES_CQP_QP_CQS_VALID = (1<<15),
- NES_CQP_QP_TYPE_TSA = 0,
- NES_CQP_QP_TYPE_IWARP = (1<<16),
- NES_CQP_QP_TYPE_CQP = (4<<16),
- NES_CQP_QP_TYPE_NIC = (5<<16),
- NES_CQP_QP_MSS_CHG = (1<<20),
- NES_CQP_QP_STATIC_RESOURCES = (1<<21),
- NES_CQP_QP_IGNORE_MW_BOUND = (1<<22),
- NES_CQP_QP_VWQ_USE_LMI = (1<<23),
- NES_CQP_QP_IWARP_STATE_IDLE = (1<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_IWARP_STATE_RTS = (2<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_IWARP_STATE_CLOSING = (3<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_IWARP_STATE_TERMINATE = (5<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_IWARP_STATE_ERROR = (6<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_IWARP_STATE_MASK = (7<<NES_CQP_OP_IWARP_STATE_SHIFT),
- NES_CQP_QP_TERM_DONT_SEND_FIN = (1<<24),
- NES_CQP_QP_TERM_DONT_SEND_TERM_MSG = (1<<25),
- NES_CQP_QP_RESET = (1<<31),
-};
-
-enum nes_cqp_qp_wqe_word_idx {
- NES_CQP_QP_WQE_CONTEXT_LOW_IDX = 6,
- NES_CQP_QP_WQE_CONTEXT_HIGH_IDX = 7,
- NES_CQP_QP_WQE_FLUSH_SQ_CODE = 8,
- NES_CQP_QP_WQE_FLUSH_RQ_CODE = 9,
- NES_CQP_QP_WQE_NEW_MSS_IDX = 15,
-};
-
-enum nes_nic_ctx_bits {
- NES_NIC_CTX_RQ_SIZE_32 = (3<<8),
- NES_NIC_CTX_RQ_SIZE_512 = (3<<8),
- NES_NIC_CTX_SQ_SIZE_32 = (1<<10),
- NES_NIC_CTX_SQ_SIZE_512 = (3<<10),
-};
-
-enum nes_nic_qp_ctx_word_idx {
- NES_NIC_CTX_MISC_IDX = 0,
- NES_NIC_CTX_SQ_LOW_IDX = 2,
- NES_NIC_CTX_SQ_HIGH_IDX = 3,
- NES_NIC_CTX_RQ_LOW_IDX = 4,
- NES_NIC_CTX_RQ_HIGH_IDX = 5,
-};
-
-enum nes_cqp_cq_bits {
- NES_CQP_CQ_CEQE_MASK = (1<<9),
- NES_CQP_CQ_CEQ_VALID = (1<<10),
- NES_CQP_CQ_RESIZE = (1<<11),
- NES_CQP_CQ_CHK_OVERFLOW = (1<<12),
- NES_CQP_CQ_4KB_CHUNK = (1<<14),
- NES_CQP_CQ_VIRT = (1<<15),
-};
-
-enum nes_cqp_stag_bits {
- NES_CQP_STAG_VA_TO = (1<<9),
- NES_CQP_STAG_DEALLOC_PBLS = (1<<10),
- NES_CQP_STAG_PBL_BLK_SIZE = (1<<11),
- NES_CQP_STAG_MR = (1<<13),
- NES_CQP_STAG_RIGHTS_LOCAL_READ = (1<<16),
- NES_CQP_STAG_RIGHTS_LOCAL_WRITE = (1<<17),
- NES_CQP_STAG_RIGHTS_REMOTE_READ = (1<<18),
- NES_CQP_STAG_RIGHTS_REMOTE_WRITE = (1<<19),
- NES_CQP_STAG_RIGHTS_WINDOW_BIND = (1<<20),
- NES_CQP_STAG_REM_ACC_EN = (1<<21),
- NES_CQP_STAG_LEAVE_PENDING = (1<<31),
-};
-
-enum nes_cqp_ceq_wqeword_idx {
- NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX = 1,
- NES_CQP_CEQ_WQE_PBL_LOW_IDX = 6,
- NES_CQP_CEQ_WQE_PBL_HIGH_IDX = 7,
-};
-
-enum nes_cqp_ceq_bits {
- NES_CQP_CEQ_4KB_CHUNK = (1<<14),
- NES_CQP_CEQ_VIRT = (1<<15),
-};
-
-enum nes_cqp_aeq_wqeword_idx {
- NES_CQP_AEQ_WQE_ELEMENT_COUNT_IDX = 1,
- NES_CQP_AEQ_WQE_PBL_LOW_IDX = 6,
- NES_CQP_AEQ_WQE_PBL_HIGH_IDX = 7,
-};
-
-enum nes_cqp_aeq_bits {
- NES_CQP_AEQ_4KB_CHUNK = (1<<14),
- NES_CQP_AEQ_VIRT = (1<<15),
-};
-
-enum nes_cqp_lmi_wqeword_idx {
- NES_CQP_LMI_WQE_LMI_OFFSET_IDX = 1,
- NES_CQP_LMI_WQE_FRAG_LOW_IDX = 8,
- NES_CQP_LMI_WQE_FRAG_HIGH_IDX = 9,
- NES_CQP_LMI_WQE_FRAG_LEN_IDX = 10,
-};
-
-enum nes_cqp_arp_wqeword_idx {
- NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX = 6,
- NES_CQP_ARP_WQE_MAC_HIGH_IDX = 7,
- NES_CQP_ARP_WQE_REACHABILITY_MAX_IDX = 1,
-};
-
-enum nes_cqp_upload_wqeword_idx {
- NES_CQP_UPLOAD_WQE_CTXT_LOW_IDX = 6,
- NES_CQP_UPLOAD_WQE_CTXT_HIGH_IDX = 7,
- NES_CQP_UPLOAD_WQE_HTE_IDX = 8,
-};
-
-enum nes_cqp_arp_bits {
- NES_CQP_ARP_VALID = (1<<8),
- NES_CQP_ARP_PERM = (1<<9),
-};
-
-enum nes_cqp_flush_bits {
- NES_CQP_FLUSH_SQ = (1<<30),
- NES_CQP_FLUSH_RQ = (1<<31),
- NES_CQP_FLUSH_MAJ_MIN = (1<<28),
-};
-
-enum nes_cqe_opcode_bits {
- NES_CQE_STAG_VALID = (1<<6),
- NES_CQE_ERROR = (1<<7),
- NES_CQE_SQ = (1<<8),
- NES_CQE_SE = (1<<9),
- NES_CQE_PSH = (1<<29),
- NES_CQE_FIN = (1<<30),
- NES_CQE_VALID = (1<<31),
-};
-
-
-enum nes_cqe_word_idx {
- NES_CQE_PAYLOAD_LENGTH_IDX = 0,
- NES_CQE_COMP_COMP_CTX_LOW_IDX = 2,
- NES_CQE_COMP_COMP_CTX_HIGH_IDX = 3,
- NES_CQE_INV_STAG_IDX = 4,
- NES_CQE_QP_ID_IDX = 5,
- NES_CQE_ERROR_CODE_IDX = 6,
- NES_CQE_OPCODE_IDX = 7,
-};
-
-enum nes_ceqe_word_idx {
- NES_CEQE_CQ_CTX_LOW_IDX = 0,
- NES_CEQE_CQ_CTX_HIGH_IDX = 1,
-};
-
-enum nes_ceqe_status_bit {
- NES_CEQE_VALID = (1<<31),
-};
-
-enum nes_int_bits {
- NES_INT_CEQ0 = (1<<0),
- NES_INT_CEQ1 = (1<<1),
- NES_INT_CEQ2 = (1<<2),
- NES_INT_CEQ3 = (1<<3),
- NES_INT_CEQ4 = (1<<4),
- NES_INT_CEQ5 = (1<<5),
- NES_INT_CEQ6 = (1<<6),
- NES_INT_CEQ7 = (1<<7),
- NES_INT_CEQ8 = (1<<8),
- NES_INT_CEQ9 = (1<<9),
- NES_INT_CEQ10 = (1<<10),
- NES_INT_CEQ11 = (1<<11),
- NES_INT_CEQ12 = (1<<12),
- NES_INT_CEQ13 = (1<<13),
- NES_INT_CEQ14 = (1<<14),
- NES_INT_CEQ15 = (1<<15),
- NES_INT_AEQ0 = (1<<16),
- NES_INT_AEQ1 = (1<<17),
- NES_INT_AEQ2 = (1<<18),
- NES_INT_AEQ3 = (1<<19),
- NES_INT_AEQ4 = (1<<20),
- NES_INT_AEQ5 = (1<<21),
- NES_INT_AEQ6 = (1<<22),
- NES_INT_AEQ7 = (1<<23),
- NES_INT_MAC0 = (1<<24),
- NES_INT_MAC1 = (1<<25),
- NES_INT_MAC2 = (1<<26),
- NES_INT_MAC3 = (1<<27),
- NES_INT_TSW = (1<<28),
- NES_INT_TIMER = (1<<29),
- NES_INT_INTF = (1<<30),
-};
-
-enum nes_intf_int_bits {
- NES_INTF_INT_PCIERR = (1<<0),
- NES_INTF_PERIODIC_TIMER = (1<<2),
- NES_INTF_ONE_SHOT_TIMER = (1<<3),
- NES_INTF_INT_CRITERR = (1<<14),
- NES_INTF_INT_AEQ0_OFLOW = (1<<16),
- NES_INTF_INT_AEQ1_OFLOW = (1<<17),
- NES_INTF_INT_AEQ2_OFLOW = (1<<18),
- NES_INTF_INT_AEQ3_OFLOW = (1<<19),
- NES_INTF_INT_AEQ4_OFLOW = (1<<20),
- NES_INTF_INT_AEQ5_OFLOW = (1<<21),
- NES_INTF_INT_AEQ6_OFLOW = (1<<22),
- NES_INTF_INT_AEQ7_OFLOW = (1<<23),
- NES_INTF_INT_AEQ_OFLOW = (0xff<<16),
-};
-
-enum nes_mac_int_bits {
- NES_MAC_INT_LINK_STAT_CHG = (1<<1),
- NES_MAC_INT_XGMII_EXT = (1<<2),
- NES_MAC_INT_TX_UNDERFLOW = (1<<6),
- NES_MAC_INT_TX_ERROR = (1<<7),
-};
-
-enum nes_cqe_allocate_bits {
- NES_CQE_ALLOC_INC_SELECT = (1<<28),
- NES_CQE_ALLOC_NOTIFY_NEXT = (1<<29),
- NES_CQE_ALLOC_NOTIFY_SE = (1<<30),
- NES_CQE_ALLOC_RESET = (1<<31),
-};
-
-enum nes_nic_rq_wqe_word_idx {
- NES_NIC_RQ_WQE_LENGTH_1_0_IDX = 0,
- NES_NIC_RQ_WQE_LENGTH_3_2_IDX = 1,
- NES_NIC_RQ_WQE_FRAG0_LOW_IDX = 2,
- NES_NIC_RQ_WQE_FRAG0_HIGH_IDX = 3,
- NES_NIC_RQ_WQE_FRAG1_LOW_IDX = 4,
- NES_NIC_RQ_WQE_FRAG1_HIGH_IDX = 5,
- NES_NIC_RQ_WQE_FRAG2_LOW_IDX = 6,
- NES_NIC_RQ_WQE_FRAG2_HIGH_IDX = 7,
- NES_NIC_RQ_WQE_FRAG3_LOW_IDX = 8,
- NES_NIC_RQ_WQE_FRAG3_HIGH_IDX = 9,
-};
-
-enum nes_nic_sq_wqe_word_idx {
- NES_NIC_SQ_WQE_MISC_IDX = 0,
- NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX = 1,
- NES_NIC_SQ_WQE_LSO_INFO_IDX = 2,
- NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX = 3,
- NES_NIC_SQ_WQE_LENGTH_2_1_IDX = 4,
- NES_NIC_SQ_WQE_LENGTH_4_3_IDX = 5,
- NES_NIC_SQ_WQE_FRAG0_LOW_IDX = 6,
- NES_NIC_SQ_WQE_FRAG0_HIGH_IDX = 7,
- NES_NIC_SQ_WQE_FRAG1_LOW_IDX = 8,
- NES_NIC_SQ_WQE_FRAG1_HIGH_IDX = 9,
- NES_NIC_SQ_WQE_FRAG2_LOW_IDX = 10,
- NES_NIC_SQ_WQE_FRAG2_HIGH_IDX = 11,
- NES_NIC_SQ_WQE_FRAG3_LOW_IDX = 12,
- NES_NIC_SQ_WQE_FRAG3_HIGH_IDX = 13,
- NES_NIC_SQ_WQE_FRAG4_LOW_IDX = 14,
- NES_NIC_SQ_WQE_FRAG4_HIGH_IDX = 15,
-};
-
-enum nes_iwarp_sq_wqe_word_idx {
- NES_IWARP_SQ_WQE_MISC_IDX = 0,
- NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX = 1,
- NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX = 2,
- NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX = 3,
- NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX = 4,
- NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX = 5,
- NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX = 7,
- NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX = 8,
- NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX = 9,
- NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX = 10,
- NES_IWARP_SQ_WQE_RDMA_STAG_IDX = 11,
- NES_IWARP_SQ_WQE_IMM_DATA_START_IDX = 12,
- NES_IWARP_SQ_WQE_FRAG0_LOW_IDX = 16,
- NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX = 17,
- NES_IWARP_SQ_WQE_LENGTH0_IDX = 18,
- NES_IWARP_SQ_WQE_STAG0_IDX = 19,
- NES_IWARP_SQ_WQE_FRAG1_LOW_IDX = 20,
- NES_IWARP_SQ_WQE_FRAG1_HIGH_IDX = 21,
- NES_IWARP_SQ_WQE_LENGTH1_IDX = 22,
- NES_IWARP_SQ_WQE_STAG1_IDX = 23,
- NES_IWARP_SQ_WQE_FRAG2_LOW_IDX = 24,
- NES_IWARP_SQ_WQE_FRAG2_HIGH_IDX = 25,
- NES_IWARP_SQ_WQE_LENGTH2_IDX = 26,
- NES_IWARP_SQ_WQE_STAG2_IDX = 27,
- NES_IWARP_SQ_WQE_FRAG3_LOW_IDX = 28,
- NES_IWARP_SQ_WQE_FRAG3_HIGH_IDX = 29,
- NES_IWARP_SQ_WQE_LENGTH3_IDX = 30,
- NES_IWARP_SQ_WQE_STAG3_IDX = 31,
-};
-
-enum nes_iwarp_sq_bind_wqe_word_idx {
- NES_IWARP_SQ_BIND_WQE_MR_IDX = 6,
- NES_IWARP_SQ_BIND_WQE_MW_IDX = 7,
- NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX = 8,
- NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX = 9,
- NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX = 10,
- NES_IWARP_SQ_BIND_WQE_VA_FBO_HIGH_IDX = 11,
-};
-
-enum nes_iwarp_sq_fmr_wqe_word_idx {
- NES_IWARP_SQ_FMR_WQE_MR_STAG_IDX = 7,
- NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX = 8,
- NES_IWARP_SQ_FMR_WQE_LENGTH_HIGH_IDX = 9,
- NES_IWARP_SQ_FMR_WQE_VA_FBO_LOW_IDX = 10,
- NES_IWARP_SQ_FMR_WQE_VA_FBO_HIGH_IDX = 11,
- NES_IWARP_SQ_FMR_WQE_PBL_ADDR_LOW_IDX = 12,
- NES_IWARP_SQ_FMR_WQE_PBL_ADDR_HIGH_IDX = 13,
- NES_IWARP_SQ_FMR_WQE_PBL_LENGTH_IDX = 14,
-};
-
-enum nes_iwarp_sq_fmr_opcodes {
- NES_IWARP_SQ_FMR_WQE_ZERO_BASED = (1<<6),
- NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_4K = (0<<7),
- NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_2M = (1<<7),
- NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_READ = (1<<16),
- NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_WRITE = (1<<17),
- NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_READ = (1<<18),
- NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_WRITE = (1<<19),
- NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_WINDOW_BIND = (1<<20),
-};
-
-#define NES_IWARP_SQ_FMR_WQE_MR_LENGTH_HIGH_MASK 0xFF;
-
-enum nes_iwarp_sq_locinv_wqe_word_idx {
- NES_IWARP_SQ_LOCINV_WQE_INV_STAG_IDX = 6,
-};
-
-enum nes_iwarp_rq_wqe_word_idx {
- NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX = 1,
- NES_IWARP_RQ_WQE_COMP_CTX_LOW_IDX = 2,
- NES_IWARP_RQ_WQE_COMP_CTX_HIGH_IDX = 3,
- NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX = 4,
- NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX = 5,
- NES_IWARP_RQ_WQE_FRAG0_LOW_IDX = 8,
- NES_IWARP_RQ_WQE_FRAG0_HIGH_IDX = 9,
- NES_IWARP_RQ_WQE_LENGTH0_IDX = 10,
- NES_IWARP_RQ_WQE_STAG0_IDX = 11,
- NES_IWARP_RQ_WQE_FRAG1_LOW_IDX = 12,
- NES_IWARP_RQ_WQE_FRAG1_HIGH_IDX = 13,
- NES_IWARP_RQ_WQE_LENGTH1_IDX = 14,
- NES_IWARP_RQ_WQE_STAG1_IDX = 15,
- NES_IWARP_RQ_WQE_FRAG2_LOW_IDX = 16,
- NES_IWARP_RQ_WQE_FRAG2_HIGH_IDX = 17,
- NES_IWARP_RQ_WQE_LENGTH2_IDX = 18,
- NES_IWARP_RQ_WQE_STAG2_IDX = 19,
- NES_IWARP_RQ_WQE_FRAG3_LOW_IDX = 20,
- NES_IWARP_RQ_WQE_FRAG3_HIGH_IDX = 21,
- NES_IWARP_RQ_WQE_LENGTH3_IDX = 22,
- NES_IWARP_RQ_WQE_STAG3_IDX = 23,
-};
-
-enum nes_nic_sq_wqe_bits {
- NES_NIC_SQ_WQE_PHDR_CS_READY = (1<<21),
- NES_NIC_SQ_WQE_LSO_ENABLE = (1<<22),
- NES_NIC_SQ_WQE_TAGVALUE_ENABLE = (1<<23),
- NES_NIC_SQ_WQE_DISABLE_CHKSUM = (1<<30),
- NES_NIC_SQ_WQE_COMPLETION = (1<<31),
-};
-
-enum nes_nic_cqe_word_idx {
- NES_NIC_CQE_ACCQP_ID_IDX = 0,
- NES_NIC_CQE_HASH_RCVNXT = 1,
- NES_NIC_CQE_TAG_PKT_TYPE_IDX = 2,
- NES_NIC_CQE_MISC_IDX = 3,
-};
-
-#define NES_PKT_TYPE_APBVT_BITS 0xC112
-#define NES_PKT_TYPE_APBVT_MASK 0xff3e
-
-#define NES_PKT_TYPE_PVALID_BITS 0x10000000
-#define NES_PKT_TYPE_PVALID_MASK 0x30000000
-
-#define NES_PKT_TYPE_TCPV4_BITS 0x0110
-#define NES_PKT_TYPE_TCPV4_MASK 0x3f30
-
-#define NES_PKT_TYPE_UDPV4_BITS 0x0210
-#define NES_PKT_TYPE_UDPV4_MASK 0x3f30
-
-#define NES_PKT_TYPE_IPV4_BITS 0x0010
-#define NES_PKT_TYPE_IPV4_MASK 0x3f30
-
-#define NES_PKT_TYPE_OTHER_BITS 0x0000
-#define NES_PKT_TYPE_OTHER_MASK 0x0030
-
-#define NES_NIC_CQE_ERRV_SHIFT 16
-enum nes_nic_ev_bits {
- NES_NIC_ERRV_BITS_MODE = (1<<0),
- NES_NIC_ERRV_BITS_IPV4_CSUM_ERR = (1<<1),
- NES_NIC_ERRV_BITS_TCPUDP_CSUM_ERR = (1<<2),
- NES_NIC_ERRV_BITS_WQE_OVERRUN = (1<<3),
- NES_NIC_ERRV_BITS_IPH_ERR = (1<<4),
-};
-
-enum nes_nic_cqe_bits {
- NES_NIC_CQE_ERRV_MASK = (0xff<<NES_NIC_CQE_ERRV_SHIFT),
- NES_NIC_CQE_SQ = (1<<24),
- NES_NIC_CQE_ACCQP_PORT = (1<<28),
- NES_NIC_CQE_ACCQP_VALID = (1<<29),
- NES_NIC_CQE_TAG_VALID = (1<<30),
- NES_NIC_CQE_VALID = (1<<31),
-};
-
-enum nes_aeqe_word_idx {
- NES_AEQE_COMP_CTXT_LOW_IDX = 0,
- NES_AEQE_COMP_CTXT_HIGH_IDX = 1,
- NES_AEQE_COMP_QP_CQ_ID_IDX = 2,
- NES_AEQE_MISC_IDX = 3,
-};
-
-enum nes_aeqe_bits {
- NES_AEQE_QP = (1<<16),
- NES_AEQE_CQ = (1<<17),
- NES_AEQE_SQ = (1<<18),
- NES_AEQE_INBOUND_RDMA = (1<<19),
- NES_AEQE_IWARP_STATE_MASK = (7<<20),
- NES_AEQE_TCP_STATE_MASK = (0xf<<24),
- NES_AEQE_Q2_DATA_WRITTEN = (0x3<<28),
- NES_AEQE_VALID = (1<<31),
-};
-
-#define NES_AEQE_IWARP_STATE_SHIFT 20
-#define NES_AEQE_TCP_STATE_SHIFT 24
-#define NES_AEQE_Q2_DATA_ETHERNET (1<<28)
-#define NES_AEQE_Q2_DATA_MPA (1<<29)
-
-enum nes_aeqe_iwarp_state {
- NES_AEQE_IWARP_STATE_NON_EXISTANT = 0,
- NES_AEQE_IWARP_STATE_IDLE = 1,
- NES_AEQE_IWARP_STATE_RTS = 2,
- NES_AEQE_IWARP_STATE_CLOSING = 3,
- NES_AEQE_IWARP_STATE_TERMINATE = 5,
- NES_AEQE_IWARP_STATE_ERROR = 6
-};
-
-enum nes_aeqe_tcp_state {
- NES_AEQE_TCP_STATE_NON_EXISTANT = 0,
- NES_AEQE_TCP_STATE_CLOSED = 1,
- NES_AEQE_TCP_STATE_LISTEN = 2,
- NES_AEQE_TCP_STATE_SYN_SENT = 3,
- NES_AEQE_TCP_STATE_SYN_RCVD = 4,
- NES_AEQE_TCP_STATE_ESTABLISHED = 5,
- NES_AEQE_TCP_STATE_CLOSE_WAIT = 6,
- NES_AEQE_TCP_STATE_FIN_WAIT_1 = 7,
- NES_AEQE_TCP_STATE_CLOSING = 8,
- NES_AEQE_TCP_STATE_LAST_ACK = 9,
- NES_AEQE_TCP_STATE_FIN_WAIT_2 = 10,
- NES_AEQE_TCP_STATE_TIME_WAIT = 11
-};
-
-enum nes_aeqe_aeid {
- NES_AEQE_AEID_AMP_UNALLOCATED_STAG = 0x0102,
- NES_AEQE_AEID_AMP_INVALID_STAG = 0x0103,
- NES_AEQE_AEID_AMP_BAD_QP = 0x0104,
- NES_AEQE_AEID_AMP_BAD_PD = 0x0105,
- NES_AEQE_AEID_AMP_BAD_STAG_KEY = 0x0106,
- NES_AEQE_AEID_AMP_BAD_STAG_INDEX = 0x0107,
- NES_AEQE_AEID_AMP_BOUNDS_VIOLATION = 0x0108,
- NES_AEQE_AEID_AMP_RIGHTS_VIOLATION = 0x0109,
- NES_AEQE_AEID_AMP_TO_WRAP = 0x010a,
- NES_AEQE_AEID_AMP_FASTREG_SHARED = 0x010b,
- NES_AEQE_AEID_AMP_FASTREG_VALID_STAG = 0x010c,
- NES_AEQE_AEID_AMP_FASTREG_MW_STAG = 0x010d,
- NES_AEQE_AEID_AMP_FASTREG_INVALID_RIGHTS = 0x010e,
- NES_AEQE_AEID_AMP_FASTREG_PBL_TABLE_OVERFLOW = 0x010f,
- NES_AEQE_AEID_AMP_FASTREG_INVALID_LENGTH = 0x0110,
- NES_AEQE_AEID_AMP_INVALIDATE_SHARED = 0x0111,
- NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS = 0x0112,
- NES_AEQE_AEID_AMP_INVALIDATE_MR_WITH_BOUND_WINDOWS = 0x0113,
- NES_AEQE_AEID_AMP_MWBIND_VALID_STAG = 0x0114,
- NES_AEQE_AEID_AMP_MWBIND_OF_MR_STAG = 0x0115,
- NES_AEQE_AEID_AMP_MWBIND_TO_ZERO_BASED_STAG = 0x0116,
- NES_AEQE_AEID_AMP_MWBIND_TO_MW_STAG = 0x0117,
- NES_AEQE_AEID_AMP_MWBIND_INVALID_RIGHTS = 0x0118,
- NES_AEQE_AEID_AMP_MWBIND_INVALID_BOUNDS = 0x0119,
- NES_AEQE_AEID_AMP_MWBIND_TO_INVALID_PARENT = 0x011a,
- NES_AEQE_AEID_AMP_MWBIND_BIND_DISABLED = 0x011b,
- NES_AEQE_AEID_BAD_CLOSE = 0x0201,
- NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE = 0x0202,
- NES_AEQE_AEID_CQ_OPERATION_ERROR = 0x0203,
- NES_AEQE_AEID_PRIV_OPERATION_DENIED = 0x0204,
- NES_AEQE_AEID_RDMA_READ_WHILE_ORD_ZERO = 0x0205,
- NES_AEQE_AEID_STAG_ZERO_INVALID = 0x0206,
- NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN = 0x0301,
- NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID = 0x0302,
- NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER = 0x0303,
- NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION = 0x0304,
- NES_AEQE_AEID_DDP_UBE_INVALID_MO = 0x0305,
- NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE = 0x0306,
- NES_AEQE_AEID_DDP_UBE_INVALID_QN = 0x0307,
- NES_AEQE_AEID_DDP_NO_L_BIT = 0x0308,
- NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION = 0x0311,
- NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE = 0x0312,
- NES_AEQE_AEID_ROE_INVALID_RDMA_READ_REQUEST = 0x0313,
- NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP = 0x0314,
- NES_AEQE_AEID_INVALID_ARP_ENTRY = 0x0401,
- NES_AEQE_AEID_INVALID_TCP_OPTION_RCVD = 0x0402,
- NES_AEQE_AEID_STALE_ARP_ENTRY = 0x0403,
- NES_AEQE_AEID_LLP_CLOSE_COMPLETE = 0x0501,
- NES_AEQE_AEID_LLP_CONNECTION_RESET = 0x0502,
- NES_AEQE_AEID_LLP_FIN_RECEIVED = 0x0503,
- NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH = 0x0504,
- NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR = 0x0505,
- NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE = 0x0506,
- NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL = 0x0507,
- NES_AEQE_AEID_LLP_SYN_RECEIVED = 0x0508,
- NES_AEQE_AEID_LLP_TERMINATE_RECEIVED = 0x0509,
- NES_AEQE_AEID_LLP_TOO_MANY_RETRIES = 0x050a,
- NES_AEQE_AEID_LLP_TOO_MANY_KEEPALIVE_RETRIES = 0x050b,
- NES_AEQE_AEID_RESET_SENT = 0x0601,
- NES_AEQE_AEID_TERMINATE_SENT = 0x0602,
- NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC = 0x0700
-};
-
-enum nes_iwarp_sq_opcodes {
- NES_IWARP_SQ_WQE_WRPDU = (1<<15),
- NES_IWARP_SQ_WQE_PSH = (1<<21),
- NES_IWARP_SQ_WQE_STREAMING = (1<<23),
- NES_IWARP_SQ_WQE_IMM_DATA = (1<<28),
- NES_IWARP_SQ_WQE_READ_FENCE = (1<<29),
- NES_IWARP_SQ_WQE_LOCAL_FENCE = (1<<30),
- NES_IWARP_SQ_WQE_SIGNALED_COMPL = (1<<31),
-};
-
-enum nes_iwarp_sq_wqe_bits {
- NES_IWARP_SQ_OP_RDMAW = 0,
- NES_IWARP_SQ_OP_RDMAR = 1,
- NES_IWARP_SQ_OP_SEND = 3,
- NES_IWARP_SQ_OP_SENDINV = 4,
- NES_IWARP_SQ_OP_SENDSE = 5,
- NES_IWARP_SQ_OP_SENDSEINV = 6,
- NES_IWARP_SQ_OP_BIND = 8,
- NES_IWARP_SQ_OP_FAST_REG = 9,
- NES_IWARP_SQ_OP_LOCINV = 10,
- NES_IWARP_SQ_OP_RDMAR_LOCINV = 11,
- NES_IWARP_SQ_OP_NOP = 12,
-};
-
-enum nes_iwarp_cqe_major_code {
- NES_IWARP_CQE_MAJOR_FLUSH = 1,
- NES_IWARP_CQE_MAJOR_DRV = 0x8000
-};
-
-enum nes_iwarp_cqe_minor_code {
- NES_IWARP_CQE_MINOR_FLUSH = 1
-};
-
-#define NES_EEPROM_READ_REQUEST (1<<16)
-#define NES_MAC_ADDR_VALID (1<<20)
-
-/*
- * NES index registers init values.
- */
-struct nes_init_values {
- u32 index;
- u32 data;
- u8 wrt;
-};
-
-/*
- * NES registers in BAR0.
- */
-struct nes_pci_regs {
- u32 int_status;
- u32 int_mask;
- u32 int_pending;
- u32 intf_int_status;
- u32 intf_int_mask;
- u32 other_regs[59]; /* pad out to 256 bytes for now */
-};
-
-#define NES_CQP_SQ_SIZE 128
-#define NES_CCQ_SIZE 128
-#define NES_NIC_WQ_SIZE 512
-#define NES_NIC_CTX_SIZE ((NES_NIC_CTX_RQ_SIZE_512) | (NES_NIC_CTX_SQ_SIZE_512))
-#define NES_NIC_BACK_STORE 0x00038000
-
-struct nes_device;
-
-struct nes_hw_nic_qp_context {
- __le32 context_words[6];
-};
-
-struct nes_hw_nic_sq_wqe {
- __le32 wqe_words[16];
-};
-
-struct nes_hw_nic_rq_wqe {
- __le32 wqe_words[16];
-};
-
-struct nes_hw_nic_cqe {
- __le32 cqe_words[4];
-};
-
-struct nes_hw_cqp_qp_context {
- __le32 context_words[4];
-};
-
-struct nes_hw_cqp_wqe {
- __le32 wqe_words[16];
-};
-
-struct nes_hw_qp_wqe {
- __le32 wqe_words[32];
-};
-
-struct nes_hw_cqe {
- __le32 cqe_words[8];
-};
-
-struct nes_hw_ceqe {
- __le32 ceqe_words[2];
-};
-
-struct nes_hw_aeqe {
- __le32 aeqe_words[4];
-};
-
-struct nes_cqp_request {
- union {
- u64 cqp_callback_context;
- void *cqp_callback_pointer;
- };
- wait_queue_head_t waitq;
- struct nes_hw_cqp_wqe cqp_wqe;
- struct list_head list;
- atomic_t refcount;
- void (*cqp_callback)(struct nes_device *nesdev, struct nes_cqp_request *cqp_request);
- u16 major_code;
- u16 minor_code;
- u8 waiting;
- u8 request_done;
- u8 dynamic;
- u8 callback;
-};
-
-struct nes_hw_cqp {
- struct nes_hw_cqp_wqe *sq_vbase;
- dma_addr_t sq_pbase;
- spinlock_t lock;
- wait_queue_head_t waitq;
- u16 qp_id;
- u16 sq_head;
- u16 sq_tail;
- u16 sq_size;
-};
-
-#define NES_FIRST_FRAG_SIZE 128
-struct nes_first_frag {
- u8 buffer[NES_FIRST_FRAG_SIZE];
-};
-
-struct nes_hw_nic {
- struct nes_first_frag *first_frag_vbase; /* virtual address of first frags */
- struct nes_hw_nic_sq_wqe *sq_vbase; /* virtual address of sq */
- struct nes_hw_nic_rq_wqe *rq_vbase; /* virtual address of rq */
- struct sk_buff *tx_skb[NES_NIC_WQ_SIZE];
- struct sk_buff *rx_skb[NES_NIC_WQ_SIZE];
- dma_addr_t frag_paddr[NES_NIC_WQ_SIZE];
- unsigned long first_frag_overflow[BITS_TO_LONGS(NES_NIC_WQ_SIZE)];
- dma_addr_t sq_pbase; /* PCI memory for host rings */
- dma_addr_t rq_pbase; /* PCI memory for host rings */
-
- u16 qp_id;
- u16 sq_head;
- u16 sq_tail;
- u16 sq_size;
- u16 rq_head;
- u16 rq_tail;
- u16 rq_size;
- u8 replenishing_rq;
- u8 reserved;
-
- spinlock_t rq_lock;
-};
-
-struct nes_hw_nic_cq {
- struct nes_hw_nic_cqe volatile *cq_vbase; /* PCI memory for host rings */
- void (*ce_handler)(struct nes_device *nesdev, struct nes_hw_nic_cq *cq);
- dma_addr_t cq_pbase; /* PCI memory for host rings */
- int rx_cqes_completed;
- int cqe_allocs_pending;
- int rx_pkts_indicated;
- u16 cq_head;
- u16 cq_size;
- u16 cq_number;
- u8 cqes_pending;
-};
-
-struct nes_hw_qp {
- struct nes_hw_qp_wqe *sq_vbase; /* PCI memory for host rings */
- struct nes_hw_qp_wqe *rq_vbase; /* PCI memory for host rings */
- void *q2_vbase; /* PCI memory for host rings */
- dma_addr_t sq_pbase; /* PCI memory for host rings */
- dma_addr_t rq_pbase; /* PCI memory for host rings */
- dma_addr_t q2_pbase; /* PCI memory for host rings */
- u32 qp_id;
- u16 sq_head;
- u16 sq_tail;
- u16 sq_size;
- u16 rq_head;
- u16 rq_tail;
- u16 rq_size;
- u8 rq_encoded_size;
- u8 sq_encoded_size;
-};
-
-struct nes_hw_cq {
- struct nes_hw_cqe *cq_vbase; /* PCI memory for host rings */
- void (*ce_handler)(struct nes_device *nesdev, struct nes_hw_cq *cq);
- dma_addr_t cq_pbase; /* PCI memory for host rings */
- u16 cq_head;
- u16 cq_size;
- u16 cq_number;
-};
-
-struct nes_hw_ceq {
- struct nes_hw_ceqe volatile *ceq_vbase; /* PCI memory for host rings */
- dma_addr_t ceq_pbase; /* PCI memory for host rings */
- u16 ceq_head;
- u16 ceq_size;
-};
-
-struct nes_hw_aeq {
- struct nes_hw_aeqe volatile *aeq_vbase; /* PCI memory for host rings */
- dma_addr_t aeq_pbase; /* PCI memory for host rings */
- u16 aeq_head;
- u16 aeq_size;
-};
-
-struct nic_qp_map {
- u8 qpid;
- u8 nic_index;
- u8 logical_port;
- u8 is_hnic;
-};
-
-#define NES_CQP_ARP_AEQ_INDEX_MASK 0x000f0000
-#define NES_CQP_ARP_AEQ_INDEX_SHIFT 16
-
-#define NES_CQP_APBVT_ADD 0x00008000
-#define NES_CQP_APBVT_NIC_SHIFT 16
-
-#define NES_ARP_ADD 1
-#define NES_ARP_DELETE 2
-#define NES_ARP_RESOLVE 3
-
-#define NES_MAC_SW_IDLE 0
-#define NES_MAC_SW_INTERRUPT 1
-#define NES_MAC_SW_MH 2
-
-struct nes_arp_entry {
- u32 ip_addr;
- u8 mac_addr[ETH_ALEN];
-};
-
-#define NES_NIC_FAST_TIMER 96
-#define NES_NIC_FAST_TIMER_LOW 40
-#define NES_NIC_FAST_TIMER_HIGH 1000
-#define DEFAULT_NES_QL_HIGH 256
-#define DEFAULT_NES_QL_LOW 16
-#define DEFAULT_NES_QL_TARGET 64
-#define DEFAULT_JUMBO_NES_QL_LOW 12
-#define DEFAULT_JUMBO_NES_QL_TARGET 40
-#define DEFAULT_JUMBO_NES_QL_HIGH 128
-#define NES_NIC_CQ_DOWNWARD_TREND 16
-#define NES_PFT_SIZE 48
-
-#define NES_MGT_WQ_COUNT 32
-#define NES_MGT_CTX_SIZE ((NES_NIC_CTX_RQ_SIZE_32) | (NES_NIC_CTX_SQ_SIZE_32))
-#define NES_MGT_QP_OFFSET 36
-#define NES_MGT_QP_COUNT 4
-
-struct nes_hw_tune_timer {
- /* u16 cq_count; */
- u16 threshold_low;
- u16 threshold_target;
- u16 threshold_high;
- u16 timer_in_use;
- u16 timer_in_use_old;
- u16 timer_in_use_min;
- u16 timer_in_use_max;
- u8 timer_direction_upward;
- u8 timer_direction_downward;
- u16 cq_count_old;
- u8 cq_direction_downward;
-};
-
-#define NES_TIMER_INT_LIMIT 2
-#define NES_TIMER_INT_LIMIT_DYNAMIC 10
-#define NES_TIMER_ENABLE_LIMIT 4
-#define NES_MAX_LINK_INTERRUPTS 128
-#define NES_MAX_LINK_CHECK 200
-
-struct nes_adapter {
- u64 fw_ver;
- unsigned long *allocated_qps;
- unsigned long *allocated_cqs;
- unsigned long *allocated_mrs;
- unsigned long *allocated_pds;
- unsigned long *allocated_arps;
- struct nes_qp **qp_table;
- struct workqueue_struct *work_q;
-
- struct list_head list;
- struct list_head active_listeners;
- /* list of the netdev's associated with each logical port */
- struct list_head nesvnic_list[4];
-
- struct timer_list mh_timer;
- struct timer_list lc_timer;
- struct work_struct work;
- spinlock_t resource_lock;
- spinlock_t phy_lock;
- spinlock_t pbl_lock;
- spinlock_t periodic_timer_lock;
-
- struct nes_arp_entry arp_table[NES_MAX_ARP_TABLE_SIZE];
-
- /* Adapter CEQ and AEQs */
- struct nes_hw_ceq ceq[16];
- struct nes_hw_aeq aeq[8];
-
- struct nes_hw_tune_timer tune_timer;
-
- unsigned long doorbell_start;
-
- u32 hw_rev;
- u32 vendor_id;
- u32 vendor_part_id;
- u32 device_cap_flags;
- u32 tick_delta;
- u32 timer_int_req;
- u32 arp_table_size;
- u32 next_arp_index;
-
- u32 max_mr;
- u32 max_256pbl;
- u32 max_4kpbl;
- u32 free_256pbl;
- u32 free_4kpbl;
- u32 max_mr_size;
- u32 max_qp;
- u32 next_qp;
- u32 max_irrq;
- u32 max_qp_wr;
- u32 max_sge;
- u32 max_cq;
- u32 next_cq;
- u32 max_cqe;
- u32 max_pd;
- u32 base_pd;
- u32 next_pd;
- u32 hte_index_mask;
-
- /* EEPROM information */
- u32 rx_pool_size;
- u32 tx_pool_size;
- u32 rx_threshold;
- u32 tcp_timer_core_clk_divisor;
- u32 iwarp_config;
- u32 cm_config;
- u32 sws_timer_config;
- u32 tcp_config1;
- u32 wqm_wat;
- u32 core_clock;
- u32 firmware_version;
- u32 eeprom_version;
-
- u32 nic_rx_eth_route_err;
-
- u32 et_rx_coalesce_usecs;
- u32 et_rx_max_coalesced_frames;
- u32 et_rx_coalesce_usecs_irq;
- u32 et_rx_max_coalesced_frames_irq;
- u32 et_pkt_rate_low;
- u32 et_rx_coalesce_usecs_low;
- u32 et_rx_max_coalesced_frames_low;
- u32 et_pkt_rate_high;
- u32 et_rx_coalesce_usecs_high;
- u32 et_rx_max_coalesced_frames_high;
- u32 et_rate_sample_interval;
- u32 timer_int_limit;
- u32 wqm_quanta;
- u8 allow_unaligned_fpdus;
-
- /* Adapter base MAC address */
- u32 mac_addr_low;
- u16 mac_addr_high;
-
- u16 firmware_eeprom_offset;
- u16 software_eeprom_offset;
-
- u16 max_irrq_wr;
-
- /* pd config for each port */
- u16 pd_config_size[4];
- u16 pd_config_base[4];
-
- u16 link_interrupt_count[4];
- u8 crit_error_count[32];
-
- /* the phy index for each port */
- u8 phy_index[4];
- u8 mac_sw_state[4];
- u8 mac_link_down[4];
- u8 phy_type[4];
- u8 log_port;
-
- /* PCI information */
- struct nes_device *nesdev;
- unsigned int devfn;
- unsigned char bus_number;
- unsigned char OneG_Mode;
-
- unsigned char ref_count;
- u8 netdev_count;
- u8 netdev_max; /* from host nic address count in EEPROM */
- u8 port_count;
- u8 virtwq;
- u8 send_term_ok;
- u8 et_use_adaptive_rx_coalesce;
- u8 adapter_fcn_count;
- u8 pft_mcast_map[NES_PFT_SIZE];
-};
-
-struct nes_pbl {
- u64 *pbl_vbase;
- dma_addr_t pbl_pbase;
- struct page *page;
- unsigned long user_base;
- u32 pbl_size;
- struct list_head list;
- /* TODO: need to add list for two level tables */
-};
-
-#define NES_4K_PBL_CHUNK_SIZE 4096
-
-struct nes_fast_mr_wqe_pbl {
- u64 *kva;
- dma_addr_t paddr;
-};
-
-struct nes_listener {
- struct work_struct work;
- struct workqueue_struct *wq;
- struct nes_vnic *nesvnic;
- struct iw_cm_id *cm_id;
- struct list_head list;
- unsigned long socket;
- u8 accept_failed;
-};
-
-struct nes_ib_device;
-
-#define NES_EVENT_DELAY msecs_to_jiffies(100)
-
-struct nes_vnic {
- struct nes_ib_device *nesibdev;
- u64 sq_full;
- u64 tso_requests;
- u64 segmented_tso_requests;
- u64 linearized_skbs;
- u64 tx_sw_dropped;
- u64 endnode_nstat_rx_discard;
- u64 endnode_nstat_rx_octets;
- u64 endnode_nstat_rx_frames;
- u64 endnode_nstat_tx_octets;
- u64 endnode_nstat_tx_frames;
- u64 endnode_ipv4_tcp_retransmits;
- /* void *mem; */
- struct nes_device *nesdev;
- struct net_device *netdev;
- atomic_t rx_skbs_needed;
- atomic_t rx_skb_timer_running;
- int budget;
- u32 msg_enable;
- /* u32 tx_avail; */
- __be32 local_ipaddr;
- struct napi_struct napi;
- spinlock_t tx_lock; /* could use netdev tx lock? */
- struct timer_list rq_wqes_timer;
- u32 nic_mem_size;
- void *nic_vbase;
- dma_addr_t nic_pbase;
- struct nes_hw_nic nic;
- struct nes_hw_nic_cq nic_cq;
- u32 mcrq_qp_id;
- struct nes_ucontext *mcrq_ucontext;
- struct nes_cqp_request* (*get_cqp_request)(struct nes_device *nesdev);
- void (*post_cqp_request)(struct nes_device*, struct nes_cqp_request *);
- int (*mcrq_mcast_filter)( struct nes_vnic* nesvnic, __u8* dmi_addr );
- struct net_device_stats netstats;
- /* used to put the netdev on the adapters logical port list */
- struct list_head list;
- u16 max_frame_size;
- u8 netdev_open;
- u8 linkup;
- u8 logical_port;
- u8 netdev_index; /* might not be needed, indexes nesdev->netdev */
- u8 perfect_filter_index;
- u8 nic_index;
- u8 qp_nic_index[4];
- u8 next_qp_nic_index;
- u8 of_device_registered;
- u8 rdma_enabled;
- struct timer_list event_timer;
- enum ib_event_type delayed_event;
- enum ib_event_type last_dispatched_event;
- spinlock_t port_ibevent_lock;
- u32 mgt_mem_size;
- void *mgt_vbase;
- dma_addr_t mgt_pbase;
- struct nes_vnic_mgt *mgtvnic[NES_MGT_QP_COUNT];
- struct task_struct *mgt_thread;
- wait_queue_head_t mgt_wait_queue;
- struct sk_buff_head mgt_skb_list;
-
-};
-
-struct nes_ib_device {
- struct ib_device ibdev;
- struct nes_vnic *nesvnic;
-
- /* Virtual RNIC Limits */
- u32 max_mr;
- u32 max_qp;
- u32 max_cq;
- u32 max_pd;
- u32 num_mr;
- u32 num_qp;
- u32 num_cq;
- u32 num_pd;
-};
-
-enum nes_hdrct_flags {
- DDP_LEN_FLAG = 0x80,
- DDP_HDR_FLAG = 0x40,
- RDMA_HDR_FLAG = 0x20
-};
-
-enum nes_term_layers {
- LAYER_RDMA = 0,
- LAYER_DDP = 1,
- LAYER_MPA = 2
-};
-
-enum nes_term_error_types {
- RDMAP_CATASTROPHIC = 0,
- RDMAP_REMOTE_PROT = 1,
- RDMAP_REMOTE_OP = 2,
- DDP_CATASTROPHIC = 0,
- DDP_TAGGED_BUFFER = 1,
- DDP_UNTAGGED_BUFFER = 2,
- DDP_LLP = 3
-};
-
-enum nes_term_rdma_errors {
- RDMAP_INV_STAG = 0x00,
- RDMAP_INV_BOUNDS = 0x01,
- RDMAP_ACCESS = 0x02,
- RDMAP_UNASSOC_STAG = 0x03,
- RDMAP_TO_WRAP = 0x04,
- RDMAP_INV_RDMAP_VER = 0x05,
- RDMAP_UNEXPECTED_OP = 0x06,
- RDMAP_CATASTROPHIC_LOCAL = 0x07,
- RDMAP_CATASTROPHIC_GLOBAL = 0x08,
- RDMAP_CANT_INV_STAG = 0x09,
- RDMAP_UNSPECIFIED = 0xff
-};
-
-enum nes_term_ddp_errors {
- DDP_CATASTROPHIC_LOCAL = 0x00,
- DDP_TAGGED_INV_STAG = 0x00,
- DDP_TAGGED_BOUNDS = 0x01,
- DDP_TAGGED_UNASSOC_STAG = 0x02,
- DDP_TAGGED_TO_WRAP = 0x03,
- DDP_TAGGED_INV_DDP_VER = 0x04,
- DDP_UNTAGGED_INV_QN = 0x01,
- DDP_UNTAGGED_INV_MSN_NO_BUF = 0x02,
- DDP_UNTAGGED_INV_MSN_RANGE = 0x03,
- DDP_UNTAGGED_INV_MO = 0x04,
- DDP_UNTAGGED_INV_TOO_LONG = 0x05,
- DDP_UNTAGGED_INV_DDP_VER = 0x06
-};
-
-enum nes_term_mpa_errors {
- MPA_CLOSED = 0x01,
- MPA_CRC = 0x02,
- MPA_MARKER = 0x03,
- MPA_REQ_RSP = 0x04,
-};
-
-struct nes_terminate_hdr {
- u8 layer_etype;
- u8 error_code;
- u8 hdrct;
- u8 rsvd;
-};
-
-/* Used to determine how to fill in terminate error codes */
-#define IWARP_OPCODE_WRITE 0
-#define IWARP_OPCODE_READREQ 1
-#define IWARP_OPCODE_READRSP 2
-#define IWARP_OPCODE_SEND 3
-#define IWARP_OPCODE_SEND_INV 4
-#define IWARP_OPCODE_SEND_SE 5
-#define IWARP_OPCODE_SEND_SE_INV 6
-#define IWARP_OPCODE_TERM 7
-
-/* These values are used only during terminate processing */
-#define TERM_DDP_LEN_TAGGED 14
-#define TERM_DDP_LEN_UNTAGGED 18
-#define TERM_RDMA_LEN 28
-#define RDMA_OPCODE_MASK 0x0f
-#define RDMA_READ_REQ_OPCODE 1
-#define BAD_FRAME_OFFSET 64
-#define CQE_MAJOR_DRV 0x8000
-
-/* Used for link status recheck after interrupt processing */
-#define NES_LINK_RECHECK_DELAY msecs_to_jiffies(50)
-#define NES_LINK_RECHECK_MAX 60
-
-#endif /* __NES_HW_H */
diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
deleted file mode 100644
index cc4dce5c3e5f..000000000000
--- a/drivers/infiniband/hw/nes/nes_mgt.c
+++ /dev/null
@@ -1,1155 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel-NE, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/kthread.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-#include "nes.h"
-#include "nes_mgt.h"
-
-atomic_t pau_qps_created;
-atomic_t pau_qps_destroyed;
-
-static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
-{
- unsigned long flags;
- dma_addr_t bus_address;
- struct sk_buff *skb;
- struct nes_hw_nic_rq_wqe *nic_rqe;
- struct nes_hw_mgt *nesmgt;
- struct nes_device *nesdev;
- struct nes_rskb_cb *cb;
- u32 rx_wqes_posted = 0;
-
- nesmgt = &mgtvnic->mgt;
- nesdev = mgtvnic->nesvnic->nesdev;
- spin_lock_irqsave(&nesmgt->rq_lock, flags);
- if (nesmgt->replenishing_rq != 0) {
- if (((nesmgt->rq_size - 1) == atomic_read(&mgtvnic->rx_skbs_needed)) &&
- (atomic_read(&mgtvnic->rx_skb_timer_running) == 0)) {
- atomic_set(&mgtvnic->rx_skb_timer_running, 1);
- spin_unlock_irqrestore(&nesmgt->rq_lock, flags);
- mgtvnic->rq_wqes_timer.expires = jiffies + (HZ / 2); /* 1/2 second */
- add_timer(&mgtvnic->rq_wqes_timer);
- } else {
- spin_unlock_irqrestore(&nesmgt->rq_lock, flags);
- }
- return;
- }
- nesmgt->replenishing_rq = 1;
- spin_unlock_irqrestore(&nesmgt->rq_lock, flags);
- do {
- skb = dev_alloc_skb(mgtvnic->nesvnic->max_frame_size);
- if (skb) {
- skb->dev = mgtvnic->nesvnic->netdev;
-
- bus_address = pci_map_single(nesdev->pcidev,
- skb->data, mgtvnic->nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->busaddr = bus_address;
- cb->maplen = mgtvnic->nesvnic->max_frame_size;
-
- nic_rqe = &nesmgt->rq_vbase[mgtvnic->mgt.rq_head];
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] =
- cpu_to_le32(mgtvnic->nesvnic->max_frame_size);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] =
- cpu_to_le32((u32)bus_address);
- nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] =
- cpu_to_le32((u32)((u64)bus_address >> 32));
- nesmgt->rx_skb[nesmgt->rq_head] = skb;
- nesmgt->rq_head++;
- nesmgt->rq_head &= nesmgt->rq_size - 1;
- atomic_dec(&mgtvnic->rx_skbs_needed);
- barrier();
- if (++rx_wqes_posted == 255) {
- nes_write32(nesdev->regs + NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesmgt->qp_id);
- rx_wqes_posted = 0;
- }
- } else {
- spin_lock_irqsave(&nesmgt->rq_lock, flags);
- if (((nesmgt->rq_size - 1) == atomic_read(&mgtvnic->rx_skbs_needed)) &&
- (atomic_read(&mgtvnic->rx_skb_timer_running) == 0)) {
- atomic_set(&mgtvnic->rx_skb_timer_running, 1);
- spin_unlock_irqrestore(&nesmgt->rq_lock, flags);
- mgtvnic->rq_wqes_timer.expires = jiffies + (HZ / 2); /* 1/2 second */
- add_timer(&mgtvnic->rq_wqes_timer);
- } else {
- spin_unlock_irqrestore(&nesmgt->rq_lock, flags);
- }
- break;
- }
- } while (atomic_read(&mgtvnic->rx_skbs_needed));
- barrier();
- if (rx_wqes_posted)
- nes_write32(nesdev->regs + NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesmgt->qp_id);
- nesmgt->replenishing_rq = 0;
-}
-
-/**
- * nes_mgt_rq_wqes_timeout
- */
-static void nes_mgt_rq_wqes_timeout(struct timer_list *t)
-{
- struct nes_vnic_mgt *mgtvnic = from_timer(mgtvnic, t,
- rq_wqes_timer);
-
- atomic_set(&mgtvnic->rx_skb_timer_running, 0);
- if (atomic_read(&mgtvnic->rx_skbs_needed))
- nes_replenish_mgt_rq(mgtvnic);
-}
-
-/**
- * nes_mgt_free_skb - unmap and free skb
- */
-static void nes_mgt_free_skb(struct nes_device *nesdev, struct sk_buff *skb, u32 dir)
-{
- struct nes_rskb_cb *cb;
-
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- pci_unmap_single(nesdev->pcidev, cb->busaddr, cb->maplen, dir);
- cb->busaddr = 0;
- dev_kfree_skb_any(skb);
-}
-
-/**
- * nes_download_callback - handle download completions
- */
-static void nes_download_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
-{
- struct pau_fpdu_info *fpdu_info = cqp_request->cqp_callback_pointer;
- struct nes_qp *nesqp = fpdu_info->nesqp;
- struct sk_buff *skb;
- int i;
-
- for (i = 0; i < fpdu_info->frag_cnt; i++) {
- skb = fpdu_info->frags[i].skb;
- if (fpdu_info->frags[i].cmplt) {
- nes_mgt_free_skb(nesdev, skb, PCI_DMA_TODEVICE);
- nes_rem_ref_cm_node(nesqp->cm_node);
- }
- }
-
- if (fpdu_info->hdr_vbase)
- pci_free_consistent(nesdev->pcidev, fpdu_info->hdr_len,
- fpdu_info->hdr_vbase, fpdu_info->hdr_pbase);
- kfree(fpdu_info);
-}
-
-/**
- * nes_get_seq - Get the seq, ack_seq and window from the packet
- */
-static u32 nes_get_seq(struct sk_buff *skb, u32 *ack, u16 *wnd, u32 *fin_rcvd, u32 *rst_rcvd)
-{
- struct nes_rskb_cb *cb = (struct nes_rskb_cb *)&skb->cb[0];
- struct iphdr *iph = (struct iphdr *)(cb->data_start + ETH_HLEN);
- struct tcphdr *tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl));
-
- *ack = be32_to_cpu(tcph->ack_seq);
- *wnd = be16_to_cpu(tcph->window);
- *fin_rcvd = tcph->fin;
- *rst_rcvd = tcph->rst;
- return be32_to_cpu(tcph->seq);
-}
-
-/**
- * nes_get_next_skb - Get the next skb based on where current skb is in the queue
- */
-static struct sk_buff *nes_get_next_skb(struct nes_device *nesdev, struct nes_qp *nesqp,
- struct sk_buff *skb, u32 nextseq, u32 *ack,
- u16 *wnd, u32 *fin_rcvd, u32 *rst_rcvd)
-{
- u32 seq;
- bool processacks;
- struct sk_buff *old_skb;
-
- if (skb) {
- /* Continue processing fpdu */
- skb = skb_peek_next(skb, &nesqp->pau_list);
- if (!skb)
- goto out;
- processacks = false;
- } else {
- /* Starting a new one */
- if (skb_queue_empty(&nesqp->pau_list))
- goto out;
- skb = skb_peek(&nesqp->pau_list);
- processacks = true;
- }
-
- while (1) {
- if (skb_queue_empty(&nesqp->pau_list))
- goto out;
-
- seq = nes_get_seq(skb, ack, wnd, fin_rcvd, rst_rcvd);
- if (seq == nextseq) {
- if (skb->len || processacks)
- break;
- } else if (after(seq, nextseq)) {
- goto out;
- }
-
- old_skb = skb;
- skb = skb_peek_next(skb, &nesqp->pau_list);
- skb_unlink(old_skb, &nesqp->pau_list);
- nes_mgt_free_skb(nesdev, old_skb, PCI_DMA_TODEVICE);
- nes_rem_ref_cm_node(nesqp->cm_node);
- if (!skb)
- goto out;
- }
- return skb;
-
-out:
- return NULL;
-}
-
-/**
- * get_fpdu_info - Find the next complete fpdu and return its fragments.
- */
-static int get_fpdu_info(struct nes_device *nesdev, struct nes_qp *nesqp,
- struct pau_fpdu_info **pau_fpdu_info)
-{
- struct sk_buff *skb;
- struct iphdr *iph;
- struct tcphdr *tcph;
- struct nes_rskb_cb *cb;
- struct pau_fpdu_info *fpdu_info = NULL;
- struct pau_fpdu_frag frags[MAX_FPDU_FRAGS];
- u32 fpdu_len = 0;
- u32 tmp_len;
- int frag_cnt = 0;
- u32 tot_len;
- u32 frag_tot;
- u32 ack;
- u32 fin_rcvd;
- u32 rst_rcvd;
- u16 wnd;
- int i;
- int rc = 0;
-
- *pau_fpdu_info = NULL;
-
- skb = nes_get_next_skb(nesdev, nesqp, NULL, nesqp->pau_rcv_nxt, &ack, &wnd, &fin_rcvd, &rst_rcvd);
- if (!skb)
- goto out;
-
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- if (skb->len) {
- fpdu_len = be16_to_cpu(*(__be16 *) skb->data) + MPA_FRAMING;
- fpdu_len = (fpdu_len + 3) & 0xfffffffc;
- tmp_len = fpdu_len;
-
- /* See if we have all of the fpdu */
- frag_tot = 0;
- memset(&frags, 0, sizeof frags);
- for (i = 0; i < MAX_FPDU_FRAGS; i++) {
- frags[i].physaddr = cb->busaddr;
- frags[i].physaddr += skb->data - cb->data_start;
- frags[i].frag_len = min(tmp_len, skb->len);
- frags[i].skb = skb;
- frags[i].cmplt = (skb->len == frags[i].frag_len);
- frag_tot += frags[i].frag_len;
- frag_cnt++;
-
- tmp_len -= frags[i].frag_len;
- if (tmp_len == 0)
- break;
-
- skb = nes_get_next_skb(nesdev, nesqp, skb,
- nesqp->pau_rcv_nxt + frag_tot, &ack, &wnd, &fin_rcvd, &rst_rcvd);
- if (!skb)
- goto out;
- if (rst_rcvd) {
- /* rst received in the middle of fpdu */
- for (; i >= 0; i--) {
- skb_unlink(frags[i].skb, &nesqp->pau_list);
- nes_mgt_free_skb(nesdev, frags[i].skb, PCI_DMA_TODEVICE);
- }
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- frags[0].physaddr = cb->busaddr;
- frags[0].physaddr += skb->data - cb->data_start;
- frags[0].frag_len = skb->len;
- frags[0].skb = skb;
- frags[0].cmplt = true;
- frag_cnt = 1;
- break;
- }
-
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- }
- } else {
- /* no data */
- frags[0].physaddr = cb->busaddr;
- frags[0].frag_len = 0;
- frags[0].skb = skb;
- frags[0].cmplt = true;
- frag_cnt = 1;
- }
-
- /* Found one */
- fpdu_info = kzalloc(sizeof(*fpdu_info), GFP_ATOMIC);
- if (!fpdu_info) {
- rc = -ENOMEM;
- goto out;
- }
-
- fpdu_info->cqp_request = nes_get_cqp_request(nesdev);
- if (fpdu_info->cqp_request == NULL) {
- nes_debug(NES_DBG_PAU, "Failed to get a cqp_request.\n");
- rc = -ENOMEM;
- goto out;
- }
-
- cb = (struct nes_rskb_cb *)&frags[0].skb->cb[0];
- iph = (struct iphdr *)(cb->data_start + ETH_HLEN);
- tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl));
- fpdu_info->hdr_len = (((unsigned char *)tcph) + 4 * (tcph->doff)) - cb->data_start;
- fpdu_info->data_len = fpdu_len;
- tot_len = fpdu_info->hdr_len + fpdu_len - ETH_HLEN;
-
- if (frags[0].cmplt) {
- fpdu_info->hdr_pbase = cb->busaddr;
- fpdu_info->hdr_vbase = NULL;
- } else {
- fpdu_info->hdr_vbase = pci_alloc_consistent(nesdev->pcidev,
- fpdu_info->hdr_len, &fpdu_info->hdr_pbase);
- if (!fpdu_info->hdr_vbase) {
- nes_debug(NES_DBG_PAU, "Unable to allocate memory for pau first frag\n");
- rc = -ENOMEM;
- goto out;
- }
-
- /* Copy hdrs, adjusting len and seqnum */
- memcpy(fpdu_info->hdr_vbase, cb->data_start, fpdu_info->hdr_len);
- iph = (struct iphdr *)(fpdu_info->hdr_vbase + ETH_HLEN);
- tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl));
- }
-
- iph->tot_len = cpu_to_be16(tot_len);
- iph->saddr = cpu_to_be32(0x7f000001);
-
- tcph->seq = cpu_to_be32(nesqp->pau_rcv_nxt);
- tcph->ack_seq = cpu_to_be32(ack);
- tcph->window = cpu_to_be16(wnd);
-
- nesqp->pau_rcv_nxt += fpdu_len + fin_rcvd;
-
- memcpy(fpdu_info->frags, frags, sizeof(fpdu_info->frags));
- fpdu_info->frag_cnt = frag_cnt;
- fpdu_info->nesqp = nesqp;
- *pau_fpdu_info = fpdu_info;
-
- /* Update skb's for next pass */
- for (i = 0; i < frag_cnt; i++) {
- cb = (struct nes_rskb_cb *)&frags[i].skb->cb[0];
- skb_pull(frags[i].skb, frags[i].frag_len);
-
- if (frags[i].skb->len == 0) {
- /* Pull skb off the list - it will be freed in the callback */
- if (!skb_queue_empty(&nesqp->pau_list))
- skb_unlink(frags[i].skb, &nesqp->pau_list);
- } else {
- /* Last skb still has data so update the seq */
- iph = (struct iphdr *)(cb->data_start + ETH_HLEN);
- tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl));
- tcph->seq = cpu_to_be32(nesqp->pau_rcv_nxt);
- }
- }
-
-out:
- if (rc) {
- if (fpdu_info) {
- if (fpdu_info->cqp_request)
- nes_put_cqp_request(nesdev, fpdu_info->cqp_request);
- kfree(fpdu_info);
- }
- }
- return rc;
-}
-
-/**
- * forward_fpdu - send complete fpdus, one at a time
- */
-static int forward_fpdus(struct nes_vnic *nesvnic, struct nes_qp *nesqp)
-{
- struct nes_device *nesdev = nesvnic->nesdev;
- struct pau_fpdu_info *fpdu_info;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- unsigned long flags;
- u64 u64tmp;
- u32 u32tmp;
- int rc;
-
- while (1) {
- spin_lock_irqsave(&nesqp->pau_lock, flags);
- rc = get_fpdu_info(nesdev, nesqp, &fpdu_info);
- if (rc || (fpdu_info == NULL)) {
- spin_unlock_irqrestore(&nesqp->pau_lock, flags);
- return rc;
- }
-
- cqp_request = fpdu_info->cqp_request;
- cqp_wqe = &cqp_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_DL_OPCODE_IDX,
- NES_CQP_DOWNLOAD_SEGMENT |
- (((u32)nesvnic->logical_port) << NES_CQP_OP_LOGICAL_PORT_SHIFT));
-
- u32tmp = fpdu_info->hdr_len << 16;
- u32tmp |= fpdu_info->hdr_len + (u32)fpdu_info->data_len;
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_DL_LENGTH_0_TOTAL_IDX,
- u32tmp);
-
- u32tmp = (fpdu_info->frags[1].frag_len << 16) | fpdu_info->frags[0].frag_len;
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_LENGTH_2_1_IDX,
- u32tmp);
-
- u32tmp = (fpdu_info->frags[3].frag_len << 16) | fpdu_info->frags[2].frag_len;
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_LENGTH_4_3_IDX,
- u32tmp);
-
- u64tmp = (u64)fpdu_info->hdr_pbase;
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX,
- lower_32_bits(u64tmp));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_HIGH_IDX,
- upper_32_bits(u64tmp));
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
- lower_32_bits(fpdu_info->frags[0].physaddr));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_HIGH_IDX,
- upper_32_bits(fpdu_info->frags[0].physaddr));
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG2_LOW_IDX,
- lower_32_bits(fpdu_info->frags[1].physaddr));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG2_HIGH_IDX,
- upper_32_bits(fpdu_info->frags[1].physaddr));
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG3_LOW_IDX,
- lower_32_bits(fpdu_info->frags[2].physaddr));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG3_HIGH_IDX,
- upper_32_bits(fpdu_info->frags[2].physaddr));
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG4_LOW_IDX,
- lower_32_bits(fpdu_info->frags[3].physaddr));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_NIC_SQ_WQE_FRAG4_HIGH_IDX,
- upper_32_bits(fpdu_info->frags[3].physaddr));
-
- cqp_request->cqp_callback_pointer = fpdu_info;
- cqp_request->callback = 1;
- cqp_request->cqp_callback = nes_download_callback;
-
- atomic_set(&cqp_request->refcount, 1);
- nes_post_cqp_request(nesdev, cqp_request);
- spin_unlock_irqrestore(&nesqp->pau_lock, flags);
- }
-
- return 0;
-}
-
-static void process_fpdus(struct nes_vnic *nesvnic, struct nes_qp *nesqp)
-{
- int again = 1;
- unsigned long flags;
-
- do {
- /* Ignore rc - if it failed, tcp retries will cause it to try again */
- forward_fpdus(nesvnic, nesqp);
-
- spin_lock_irqsave(&nesqp->pau_lock, flags);
- if (nesqp->pau_pending) {
- nesqp->pau_pending = 0;
- } else {
- nesqp->pau_busy = 0;
- again = 0;
- }
-
- spin_unlock_irqrestore(&nesqp->pau_lock, flags);
- } while (again);
-}
-
-/**
- * queue_fpdus - Handle fpdu's that hw passed up to sw
- */
-static void queue_fpdus(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp)
-{
- struct sk_buff *tmpskb;
- struct nes_rskb_cb *cb;
- struct iphdr *iph;
- struct tcphdr *tcph;
- unsigned char *tcph_end;
- u32 rcv_nxt;
- u32 rcv_wnd;
- u32 seqnum;
- u32 len;
- bool process_it = false;
- unsigned long flags;
-
- /* Move data ptr to after tcp header */
- iph = (struct iphdr *)skb->data;
- tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl));
- seqnum = be32_to_cpu(tcph->seq);
- tcph_end = (((char *)tcph) + (4 * tcph->doff));
-
- len = be16_to_cpu(iph->tot_len);
- if (skb->len > len)
- skb_trim(skb, len);
- skb_pull(skb, tcph_end - skb->data);
-
- /* Initialize tracking values */
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->seqnum = seqnum;
-
- /* Make sure data is in the receive window */
- rcv_nxt = nesqp->pau_rcv_nxt;
- rcv_wnd = le32_to_cpu(nesqp->nesqp_context->rcv_wnd);
- if (!between(seqnum, rcv_nxt, (rcv_nxt + rcv_wnd))) {
- nes_mgt_free_skb(nesvnic->nesdev, skb, PCI_DMA_TODEVICE);
- nes_rem_ref_cm_node(nesqp->cm_node);
- return;
- }
-
- spin_lock_irqsave(&nesqp->pau_lock, flags);
-
- if (nesqp->pau_busy)
- nesqp->pau_pending = 1;
- else
- nesqp->pau_busy = 1;
-
- /* Queue skb by sequence number */
- if (skb_queue_len(&nesqp->pau_list) == 0) {
- __skb_queue_head(&nesqp->pau_list, skb);
- } else {
- skb_queue_walk(&nesqp->pau_list, tmpskb) {
- cb = (struct nes_rskb_cb *)&tmpskb->cb[0];
- if (before(seqnum, cb->seqnum))
- break;
- }
- __skb_insert(skb, tmpskb->prev, tmpskb, &nesqp->pau_list);
- }
- if (nesqp->pau_state == PAU_READY)
- process_it = true;
- spin_unlock_irqrestore(&nesqp->pau_lock, flags);
-
- if (process_it)
- process_fpdus(nesvnic, nesqp);
-
- return;
-}
-
-/**
- * mgt_thread - Handle mgt skbs in a safe context
- */
-static int mgt_thread(void *context)
-{
- struct nes_vnic *nesvnic = context;
- struct sk_buff *skb;
- struct nes_rskb_cb *cb;
-
- while (!kthread_should_stop()) {
- wait_event_interruptible(nesvnic->mgt_wait_queue,
- skb_queue_len(&nesvnic->mgt_skb_list) || kthread_should_stop());
- while ((skb_queue_len(&nesvnic->mgt_skb_list)) && !kthread_should_stop()) {
- skb = skb_dequeue(&nesvnic->mgt_skb_list);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->data_start = skb->data - ETH_HLEN;
- cb->busaddr = pci_map_single(nesvnic->nesdev->pcidev, cb->data_start,
- nesvnic->max_frame_size, PCI_DMA_TODEVICE);
- queue_fpdus(skb, nesvnic, cb->nesqp);
- }
- }
-
- /* Closing down so delete any entries on the queue */
- while (skb_queue_len(&nesvnic->mgt_skb_list)) {
- skb = skb_dequeue(&nesvnic->mgt_skb_list);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- nes_rem_ref_cm_node(cb->nesqp->cm_node);
- dev_kfree_skb_any(skb);
- }
- return 0;
-}
-
-/**
- * nes_queue_skbs - Queue skb so it can be handled in a thread context
- */
-void nes_queue_mgt_skbs(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp)
-{
- struct nes_rskb_cb *cb;
-
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->nesqp = nesqp;
- skb_queue_tail(&nesvnic->mgt_skb_list, skb);
- wake_up_interruptible(&nesvnic->mgt_wait_queue);
-}
-
-void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
-{
- struct sk_buff *skb;
- unsigned long flags;
- atomic_inc(&pau_qps_destroyed);
-
- /* Free packets that have not yet been forwarded */
- /* Lock is acquired by skb_dequeue when removing the skb */
- spin_lock_irqsave(&nesqp->pau_lock, flags);
- while (skb_queue_len(&nesqp->pau_list)) {
- skb = skb_dequeue(&nesqp->pau_list);
- nes_mgt_free_skb(nesdev, skb, PCI_DMA_TODEVICE);
- nes_rem_ref_cm_node(nesqp->cm_node);
- }
- spin_unlock_irqrestore(&nesqp->pau_lock, flags);
-}
-
-static void nes_chg_qh_handler(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
-{
- struct pau_qh_chg *qh_chg = cqp_request->cqp_callback_pointer;
- struct nes_cqp_request *new_request;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_adapter *nesadapter;
- struct nes_qp *nesqp;
- struct nes_v4_quad nes_quad;
- u32 crc_value;
- u64 u64temp;
-
- nesadapter = nesdev->nesadapter;
- nesqp = qh_chg->nesqp;
-
- /* Should we handle the bad completion */
- if (cqp_request->major_code)
- WARN(1, PFX "Invalid cqp_request major_code=0x%x\n",
- cqp_request->major_code);
-
- switch (nesqp->pau_state) {
- case PAU_DEL_QH:
- /* Old hash code deleted, now set the new one */
- nesqp->pau_state = PAU_ADD_LB_QH;
- new_request = nes_get_cqp_request(nesdev);
- if (new_request == NULL) {
- nes_debug(NES_DBG_PAU, "Failed to get a new_request.\n");
- WARN_ON(1);
- return;
- }
-
- memset(&nes_quad, 0, sizeof(nes_quad));
- nes_quad.DstIpAdrIndex =
- cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
- nes_quad.SrcIpadr = cpu_to_be32(0x7f000001);
- nes_quad.TcpPorts[0] = swab16(nesqp->nesqp_context->tcpPorts[1]);
- nes_quad.TcpPorts[1] = swab16(nesqp->nesqp_context->tcpPorts[0]);
-
- /* Produce hash key */
- crc_value = get_crc_value(&nes_quad);
- nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
- nes_debug(NES_DBG_PAU, "new HTE Index = 0x%08X, CRC = 0x%08X\n",
- nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask);
-
- nesqp->hte_index &= nesadapter->hte_index_mask;
- nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
- nesqp->nesqp_context->ip0 = cpu_to_le32(0x7f000001);
- nesqp->nesqp_context->rcv_nxt = cpu_to_le32(nesqp->pau_rcv_nxt);
-
- cqp_wqe = &new_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words,
- NES_CQP_WQE_OPCODE_IDX, NES_CQP_MANAGE_QUAD_HASH |
- NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_CONTEXT_VALID | NES_CQP_QP_IWARP_STATE_RTS);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
- u64temp = (u64)nesqp->nesqp_context_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-
- nes_debug(NES_DBG_PAU, "Waiting for CQP completion for adding the quad hash.\n");
-
- new_request->cqp_callback_pointer = qh_chg;
- new_request->callback = 1;
- new_request->cqp_callback = nes_chg_qh_handler;
- atomic_set(&new_request->refcount, 1);
- nes_post_cqp_request(nesdev, new_request);
- break;
-
- case PAU_ADD_LB_QH:
- /* Start processing the queued fpdu's */
- nesqp->pau_state = PAU_READY;
- process_fpdus(qh_chg->nesvnic, qh_chg->nesqp);
- kfree(qh_chg);
- break;
- }
-}
-
-/**
- * nes_change_quad_hash
- */
-static int nes_change_quad_hash(struct nes_device *nesdev,
- struct nes_vnic *nesvnic, struct nes_qp *nesqp)
-{
- struct nes_cqp_request *cqp_request = NULL;
- struct pau_qh_chg *qh_chg = NULL;
- u64 u64temp;
- struct nes_hw_cqp_wqe *cqp_wqe;
- int ret = 0;
-
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_PAU, "Failed to get a cqp_request.\n");
- ret = -ENOMEM;
- goto chg_qh_err;
- }
-
- qh_chg = kmalloc(sizeof *qh_chg, GFP_ATOMIC);
- if (!qh_chg) {
- ret = -ENOMEM;
- goto chg_qh_err;
- }
- qh_chg->nesdev = nesdev;
- qh_chg->nesvnic = nesvnic;
- qh_chg->nesqp = nesqp;
- nesqp->pau_state = PAU_DEL_QH;
-
- cqp_wqe = &cqp_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words,
- NES_CQP_WQE_OPCODE_IDX, NES_CQP_MANAGE_QUAD_HASH | NES_CQP_QP_DEL_HTE |
- NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_CONTEXT_VALID | NES_CQP_QP_IWARP_STATE_RTS);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
- u64temp = (u64)nesqp->nesqp_context_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-
- nes_debug(NES_DBG_PAU, "Waiting for CQP completion for deleting the quad hash.\n");
-
- cqp_request->cqp_callback_pointer = qh_chg;
- cqp_request->callback = 1;
- cqp_request->cqp_callback = nes_chg_qh_handler;
- atomic_set(&cqp_request->refcount, 1);
- nes_post_cqp_request(nesdev, cqp_request);
-
- return ret;
-
-chg_qh_err:
- kfree(qh_chg);
- if (cqp_request)
- nes_put_cqp_request(nesdev, cqp_request);
- return ret;
-}
-
-/**
- * nes_mgt_ce_handler
- * This management code deals with any packed and unaligned (pau) fpdu's
- * that the hardware cannot handle.
- */
-static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
-{
- struct nes_vnic_mgt *mgtvnic = container_of(cq, struct nes_vnic_mgt, mgt_cq);
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 head;
- u32 cq_size;
- u32 cqe_count = 0;
- u32 cqe_misc;
- u32 qp_id = 0;
- u32 skbs_needed;
- unsigned long context;
- struct nes_qp *nesqp;
- struct sk_buff *rx_skb;
- struct nes_rskb_cb *cb;
-
- head = cq->cq_head;
- cq_size = cq->cq_size;
-
- while (1) {
- cqe_misc = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]);
- if (!(cqe_misc & NES_NIC_CQE_VALID))
- break;
-
- nesqp = NULL;
- if (cqe_misc & NES_NIC_CQE_ACCQP_VALID) {
- qp_id = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_ACCQP_ID_IDX]);
- qp_id &= 0x001fffff;
- if (qp_id < nesadapter->max_qp) {
- context = (unsigned long)nesadapter->qp_table[qp_id - NES_FIRST_QPN];
- nesqp = (struct nes_qp *)context;
- }
- }
-
- if (nesqp) {
- if (nesqp->pau_mode == false) {
- nesqp->pau_mode = true; /* First time for this qp */
- nesqp->pau_rcv_nxt = le32_to_cpu(
- cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
- skb_queue_head_init(&nesqp->pau_list);
- spin_lock_init(&nesqp->pau_lock);
- atomic_inc(&pau_qps_created);
- nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
- }
-
- rx_skb = mgtvnic->mgt.rx_skb[mgtvnic->mgt.rq_tail];
- rx_skb->len = 0;
- skb_put(rx_skb, cqe_misc & 0x0000ffff);
- rx_skb->protocol = eth_type_trans(rx_skb, mgtvnic->nesvnic->netdev);
- cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
- pci_unmap_single(nesdev->pcidev, cb->busaddr, cb->maplen, PCI_DMA_FROMDEVICE);
- cb->busaddr = 0;
- mgtvnic->mgt.rq_tail++;
- mgtvnic->mgt.rq_tail &= mgtvnic->mgt.rq_size - 1;
-
- nes_add_ref_cm_node(nesqp->cm_node);
- nes_queue_mgt_skbs(rx_skb, mgtvnic->nesvnic, nesqp);
- } else {
- printk(KERN_ERR PFX "Invalid QP %d for packed/unaligned handling\n", qp_id);
- }
-
- cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX] = 0;
- cqe_count++;
- if (++head >= cq_size)
- head = 0;
-
- if (cqe_count == 255) {
- /* Replenish mgt CQ */
- nes_write32(nesdev->regs + NES_CQE_ALLOC, cq->cq_number | (cqe_count << 16));
- nesdev->currcq_count += cqe_count;
- cqe_count = 0;
- }
-
- skbs_needed = atomic_inc_return(&mgtvnic->rx_skbs_needed);
- if (skbs_needed > (mgtvnic->mgt.rq_size >> 1))
- nes_replenish_mgt_rq(mgtvnic);
- }
-
- cq->cq_head = head;
- nes_write32(nesdev->regs + NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- cq->cq_number | (cqe_count << 16));
- nes_read32(nesdev->regs + NES_CQE_ALLOC);
- nesdev->currcq_count += cqe_count;
-}
-
-/**
- * nes_init_mgt_qp
- */
-int nes_init_mgt_qp(struct nes_device *nesdev, struct net_device *netdev, struct nes_vnic *nesvnic)
-{
- struct nes_vnic_mgt *mgtvnic;
- u32 counter;
- void *vmem;
- dma_addr_t pmem;
- struct nes_hw_cqp_wqe *cqp_wqe;
- u32 cqp_head;
- unsigned long flags;
- struct nes_hw_nic_qp_context *mgt_context;
- u64 u64temp;
- struct nes_hw_nic_rq_wqe *mgt_rqe;
- struct sk_buff *skb;
- u32 wqe_count;
- struct nes_rskb_cb *cb;
- u32 mgt_mem_size;
- void *mgt_vbase;
- dma_addr_t mgt_pbase;
- int i;
- int ret;
-
- /* Allocate space the all mgt QPs once */
- mgtvnic = kcalloc(NES_MGT_QP_COUNT, sizeof(struct nes_vnic_mgt),
- GFP_KERNEL);
- if (!mgtvnic)
- return -ENOMEM;
-
- /* Allocate fragment, RQ, and CQ; Reuse CEQ based on the PCI function */
- /* We are not sending from this NIC so sq is not allocated */
- mgt_mem_size = 256 +
- (NES_MGT_WQ_COUNT * sizeof(struct nes_hw_nic_rq_wqe)) +
- (NES_MGT_WQ_COUNT * sizeof(struct nes_hw_nic_cqe)) +
- sizeof(struct nes_hw_nic_qp_context);
- mgt_mem_size = (mgt_mem_size + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
- mgt_vbase = pci_alloc_consistent(nesdev->pcidev, NES_MGT_QP_COUNT * mgt_mem_size, &mgt_pbase);
- if (!mgt_vbase) {
- kfree(mgtvnic);
- nes_debug(NES_DBG_INIT, "Unable to allocate memory for mgt host descriptor rings\n");
- return -ENOMEM;
- }
-
- nesvnic->mgt_mem_size = NES_MGT_QP_COUNT * mgt_mem_size;
- nesvnic->mgt_vbase = mgt_vbase;
- nesvnic->mgt_pbase = mgt_pbase;
-
- skb_queue_head_init(&nesvnic->mgt_skb_list);
- init_waitqueue_head(&nesvnic->mgt_wait_queue);
- nesvnic->mgt_thread = kthread_run(mgt_thread, nesvnic, "nes_mgt_thread");
-
- for (i = 0; i < NES_MGT_QP_COUNT; i++) {
- mgtvnic->nesvnic = nesvnic;
- mgtvnic->mgt.qp_id = nesdev->mac_index + NES_MGT_QP_OFFSET + i;
- memset(mgt_vbase, 0, mgt_mem_size);
- nes_debug(NES_DBG_INIT, "Allocated mgt QP structures at %p (phys = %016lX), size = %u.\n",
- mgt_vbase, (unsigned long)mgt_pbase, mgt_mem_size);
-
- vmem = (void *)(((unsigned long)mgt_vbase + (256 - 1)) &
- ~(unsigned long)(256 - 1));
- pmem = (dma_addr_t)(((unsigned long long)mgt_pbase + (256 - 1)) &
- ~(unsigned long long)(256 - 1));
-
- spin_lock_init(&mgtvnic->mgt.rq_lock);
-
- /* setup the RQ */
- mgtvnic->mgt.rq_vbase = vmem;
- mgtvnic->mgt.rq_pbase = pmem;
- mgtvnic->mgt.rq_head = 0;
- mgtvnic->mgt.rq_tail = 0;
- mgtvnic->mgt.rq_size = NES_MGT_WQ_COUNT;
-
- /* setup the CQ */
- vmem += (NES_MGT_WQ_COUNT * sizeof(struct nes_hw_nic_rq_wqe));
- pmem += (NES_MGT_WQ_COUNT * sizeof(struct nes_hw_nic_rq_wqe));
-
- mgtvnic->mgt_cq.cq_number = mgtvnic->mgt.qp_id;
- mgtvnic->mgt_cq.cq_vbase = vmem;
- mgtvnic->mgt_cq.cq_pbase = pmem;
- mgtvnic->mgt_cq.cq_head = 0;
- mgtvnic->mgt_cq.cq_size = NES_MGT_WQ_COUNT;
-
- mgtvnic->mgt_cq.ce_handler = nes_mgt_ce_handler;
-
- /* Send CreateCQ request to CQP */
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- cqp_head = nesdev->cqp.sq_head;
-
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
- NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
- ((u32)mgtvnic->mgt_cq.cq_size << 16));
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(
- mgtvnic->mgt_cq.cq_number | ((u32)nesdev->ceq_index << 16));
- u64temp = (u64)mgtvnic->mgt_cq.cq_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
- u64temp = (unsigned long)&mgtvnic->mgt_cq;
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = cpu_to_le32((u32)(u64temp >> 1));
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
- cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- /* Send CreateQP request to CQP */
- mgt_context = (void *)(&mgtvnic->mgt_cq.cq_vbase[mgtvnic->mgt_cq.cq_size]);
- mgt_context->context_words[NES_NIC_CTX_MISC_IDX] =
- cpu_to_le32((u32)NES_MGT_CTX_SIZE |
- ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 12));
- nes_debug(NES_DBG_INIT, "RX_WINDOW_BUFFER_PAGE_TABLE_SIZE = 0x%08X, RX_WINDOW_BUFFER_SIZE = 0x%08X\n",
- nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_PAGE_TABLE_SIZE),
- nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE));
- if (nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE) != 0)
- mgt_context->context_words[NES_NIC_CTX_MISC_IDX] |= cpu_to_le32(NES_NIC_BACK_STORE);
-
- u64temp = (u64)mgtvnic->mgt.rq_pbase;
- mgt_context->context_words[NES_NIC_CTX_SQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
- mgt_context->context_words[NES_NIC_CTX_SQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
- u64temp = (u64)mgtvnic->mgt.rq_pbase;
- mgt_context->context_words[NES_NIC_CTX_RQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
- mgt_context->context_words[NES_NIC_CTX_RQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_CREATE_QP |
- NES_CQP_QP_TYPE_NIC);
- cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(mgtvnic->mgt.qp_id);
- u64temp = (u64)mgtvnic->mgt_cq.cq_pbase +
- (mgtvnic->mgt_cq.cq_size * sizeof(struct nes_hw_nic_cqe));
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
- nesdev->cqp.sq_head = cqp_head;
-
- barrier();
-
- /* Ring doorbell (2 WQEs) */
- nes_write32(nesdev->regs + NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- nes_debug(NES_DBG_INIT, "Waiting for create MGT QP%u to complete.\n",
- mgtvnic->mgt.qp_id);
-
- ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_INIT, "Create MGT QP%u completed, wait_event_timeout ret = %u.\n",
- mgtvnic->mgt.qp_id, ret);
- if (!ret) {
- nes_debug(NES_DBG_INIT, "MGT QP%u create timeout expired\n", mgtvnic->mgt.qp_id);
- if (i == 0) {
- pci_free_consistent(nesdev->pcidev, nesvnic->mgt_mem_size, nesvnic->mgt_vbase,
- nesvnic->mgt_pbase);
- kfree(mgtvnic);
- } else {
- nes_destroy_mgt(nesvnic);
- }
- return -EIO;
- }
-
- /* Populate the RQ */
- for (counter = 0; counter < (NES_MGT_WQ_COUNT - 1); counter++) {
- skb = dev_alloc_skb(nesvnic->max_frame_size);
- if (!skb) {
- nes_debug(NES_DBG_INIT, "%s: out of memory for receive skb\n", netdev->name);
- return -ENOMEM;
- }
-
- skb->dev = netdev;
-
- pmem = pci_map_single(nesdev->pcidev, skb->data,
- nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
- cb = (struct nes_rskb_cb *)&skb->cb[0];
- cb->busaddr = pmem;
- cb->maplen = nesvnic->max_frame_size;
-
- mgt_rqe = &mgtvnic->mgt.rq_vbase[counter];
- mgt_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] = cpu_to_le32((u32)nesvnic->max_frame_size);
- mgt_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
- mgt_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] = cpu_to_le32((u32)pmem);
- mgt_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] = cpu_to_le32((u32)((u64)pmem >> 32));
- mgtvnic->mgt.rx_skb[counter] = skb;
- }
-
- timer_setup(&mgtvnic->rq_wqes_timer, nes_mgt_rq_wqes_timeout,
- 0);
-
- wqe_count = NES_MGT_WQ_COUNT - 1;
- mgtvnic->mgt.rq_head = wqe_count;
- barrier();
- do {
- counter = min(wqe_count, ((u32)255));
- wqe_count -= counter;
- nes_write32(nesdev->regs + NES_WQE_ALLOC, (counter << 24) | mgtvnic->mgt.qp_id);
- } while (wqe_count);
-
- nes_write32(nesdev->regs + NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- mgtvnic->mgt_cq.cq_number);
- nes_read32(nesdev->regs + NES_CQE_ALLOC);
-
- mgt_vbase += mgt_mem_size;
- mgt_pbase += mgt_mem_size;
- nesvnic->mgtvnic[i] = mgtvnic++;
- }
- return 0;
-}
-
-
-void nes_destroy_mgt(struct nes_vnic *nesvnic)
-{
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_vnic_mgt *mgtvnic;
- struct nes_vnic_mgt *first_mgtvnic;
- unsigned long flags;
- struct nes_hw_cqp_wqe *cqp_wqe;
- u32 cqp_head;
- struct sk_buff *rx_skb;
- int i;
- int ret;
-
- kthread_stop(nesvnic->mgt_thread);
-
- /* Free remaining NIC receive buffers */
- first_mgtvnic = nesvnic->mgtvnic[0];
- for (i = 0; i < NES_MGT_QP_COUNT; i++) {
- mgtvnic = nesvnic->mgtvnic[i];
- if (mgtvnic == NULL)
- continue;
-
- while (mgtvnic->mgt.rq_head != mgtvnic->mgt.rq_tail) {
- rx_skb = mgtvnic->mgt.rx_skb[mgtvnic->mgt.rq_tail];
- nes_mgt_free_skb(nesdev, rx_skb, PCI_DMA_FROMDEVICE);
- mgtvnic->mgt.rq_tail++;
- mgtvnic->mgt.rq_tail &= (mgtvnic->mgt.rq_size - 1);
- }
-
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
-
- /* Destroy NIC QP */
- cqp_head = nesdev->cqp.sq_head;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_NIC));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- mgtvnic->mgt.qp_id);
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
-
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
-
- /* Destroy NIC CQ */
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- (NES_CQP_DESTROY_CQ | ((u32)mgtvnic->mgt_cq.cq_size << 16)));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- (mgtvnic->mgt_cq.cq_number | ((u32)nesdev->ceq_index << 16)));
-
- if (++cqp_head >= nesdev->cqp.sq_size)
- cqp_head = 0;
-
- nesdev->cqp.sq_head = cqp_head;
- barrier();
-
- /* Ring doorbell (2 WQEs) */
- nes_write32(nesdev->regs + NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- nes_debug(NES_DBG_SHUTDOWN, "Waiting for CQP, cqp_head=%u, cqp.sq_head=%u,"
- " cqp.sq_tail=%u, cqp.sq_size=%u\n",
- cqp_head, nesdev->cqp.sq_head,
- nesdev->cqp.sq_tail, nesdev->cqp.sq_size);
-
- ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
- NES_EVENT_TIMEOUT);
-
- nes_debug(NES_DBG_SHUTDOWN, "Destroy MGT QP returned, wait_event_timeout ret = %u, cqp_head=%u,"
- " cqp.sq_head=%u, cqp.sq_tail=%u\n",
- ret, cqp_head, nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
- if (!ret)
- nes_debug(NES_DBG_SHUTDOWN, "MGT QP%u destroy timeout expired\n",
- mgtvnic->mgt.qp_id);
-
- nesvnic->mgtvnic[i] = NULL;
- }
-
- if (nesvnic->mgt_vbase) {
- pci_free_consistent(nesdev->pcidev, nesvnic->mgt_mem_size, nesvnic->mgt_vbase,
- nesvnic->mgt_pbase);
- nesvnic->mgt_vbase = NULL;
- nesvnic->mgt_pbase = 0;
- }
-
- kfree(first_mgtvnic);
-}
diff --git a/drivers/infiniband/hw/nes/nes_mgt.h b/drivers/infiniband/hw/nes/nes_mgt.h
deleted file mode 100644
index 4f7f701c4a81..000000000000
--- a/drivers/infiniband/hw/nes/nes_mgt.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
-* Copyright (c) 2006 - 2011 Intel-NE, Inc. All rights reserved.
-*
-* This software is available to you under a choice of one of two
-* licenses. You may choose to be licensed under the terms of the GNU
-* General Public License (GPL) Version 2, available from the file
-* COPYING in the main directory of this source tree, or the
-* OpenIB.org BSD license below:
-*
-* Redistribution and use in source and binary forms, with or
-* without modification, are permitted provided that the following
-* conditions are met:
-*
-* - Redistributions of source code must retain the above
-* copyright notice, this list of conditions and the following
-* disclaimer.
-*
-* - Redistributions in binary form must reproduce the above
-* copyright notice, this list of conditions and the following
-* disclaimer in the documentation and/or other materials
-* provided with the distribution.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*/
-
-#ifndef __NES_MGT_H
-#define __NES_MGT_H
-
-#define MPA_FRAMING 6 /* length is 2 bytes, crc is 4 bytes */
-
-int nes_init_mgt_qp(struct nes_device *nesdev, struct net_device *netdev, struct nes_vnic *nesvnic);
-void nes_queue_mgt_skbs(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp);
-void nes_destroy_mgt(struct nes_vnic *nesvnic);
-void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp);
-
-struct nes_hw_mgt {
- struct nes_hw_nic_rq_wqe *rq_vbase; /* virtual address of rq */
- dma_addr_t rq_pbase; /* PCI memory for host rings */
- struct sk_buff *rx_skb[NES_NIC_WQ_SIZE];
- u16 qp_id;
- u16 sq_head;
- u16 rq_head;
- u16 rq_tail;
- u16 rq_size;
- u8 replenishing_rq;
- u8 reserved;
- spinlock_t rq_lock;
-};
-
-struct nes_vnic_mgt {
- struct nes_vnic *nesvnic;
- struct nes_hw_mgt mgt;
- struct nes_hw_nic_cq mgt_cq;
- atomic_t rx_skbs_needed;
- struct timer_list rq_wqes_timer;
- atomic_t rx_skb_timer_running;
-};
-
-#define MAX_FPDU_FRAGS 4
-struct pau_fpdu_frag {
- struct sk_buff *skb;
- u64 physaddr;
- u32 frag_len;
- bool cmplt;
-};
-
-struct pau_fpdu_info {
- struct nes_qp *nesqp;
- struct nes_cqp_request *cqp_request;
- void *hdr_vbase;
- dma_addr_t hdr_pbase;
- int hdr_len;
- u16 data_len;
- u16 frag_cnt;
- struct pau_fpdu_frag frags[MAX_FPDU_FRAGS];
-};
-
-enum pau_qh_state {
- PAU_DEL_QH,
- PAU_ADD_LB_QH,
- PAU_READY
-};
-
-struct pau_qh_chg {
- struct nes_device *nesdev;
- struct nes_vnic *nesvnic;
- struct nes_qp *nesqp;
-};
-
-#endif /* __NES_MGT_H */
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
deleted file mode 100644
index 16f33454c198..000000000000
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ /dev/null
@@ -1,1870 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/if_arp.h>
-#include <linux/if_vlan.h>
-#include <linux/ethtool.h>
-#include <linux/slab.h>
-#include <net/tcp.h>
-
-#include <net/inet_common.h>
-#include <linux/inet.h>
-
-#include "nes.h"
-
-static struct nic_qp_map nic_qp_mapping_0[] = {
- {16,0,0,1},{24,4,0,0},{28,8,0,0},{32,12,0,0},
- {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0},
- {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
- {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_1[] = {
- {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
- {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_2[] = {
- {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_3[] = {
- {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_4[] = {
- {28,8,0,0},{32,12,0,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_5[] = {
- {29,9,1,0},{33,13,1,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_6[] = {
- {30,10,2,0},{34,14,2,0}
-};
-
-static struct nic_qp_map nic_qp_mapping_7[] = {
- {31,11,3,0},{35,15,3,0}
-};
-
-static struct nic_qp_map *nic_qp_mapping_per_function[] = {
- nic_qp_mapping_0, nic_qp_mapping_1, nic_qp_mapping_2, nic_qp_mapping_3,
- nic_qp_mapping_4, nic_qp_mapping_5, nic_qp_mapping_6, nic_qp_mapping_7
-};
-
-static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
- | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
-static int debug = -1;
-static int nics_per_function = 1;
-
-/**
- * nes_netdev_poll
- */
-static int nes_netdev_poll(struct napi_struct *napi, int budget)
-{
- struct nes_vnic *nesvnic = container_of(napi, struct nes_vnic, napi);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_nic_cq *nescq = &nesvnic->nic_cq;
-
- nesvnic->budget = budget;
- nescq->cqes_pending = 0;
- nescq->rx_cqes_completed = 0;
- nescq->cqe_allocs_pending = 0;
- nescq->rx_pkts_indicated = 0;
-
- nes_nic_ce_handler(nesdev, nescq);
-
- if (nescq->cqes_pending == 0) {
- napi_complete(napi);
- /* clear out completed cqes and arm */
- nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- nescq->cq_number | (nescq->cqe_allocs_pending << 16));
- nes_read32(nesdev->regs+NES_CQE_ALLOC);
- } else {
- /* clear out completed cqes but don't arm */
- nes_write32(nesdev->regs+NES_CQE_ALLOC,
- nescq->cq_number | (nescq->cqe_allocs_pending << 16));
- nes_debug(NES_DBG_NETDEV, "%s: exiting with work pending\n",
- nesvnic->netdev->name);
- }
- return nescq->rx_pkts_indicated;
-}
-
-
-/**
- * nes_netdev_open - Activate the network interface; ifconfig
- * ethx up.
- */
-static int nes_netdev_open(struct net_device *netdev)
-{
- u32 macaddr_low;
- u16 macaddr_high;
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- int ret;
- int i;
- struct nes_vnic *first_nesvnic = NULL;
- u32 nic_active_bit;
- u32 nic_active;
- struct list_head *list_pos, *list_temp;
- unsigned long flags;
-
- if (nesvnic->netdev_open == 1)
- return 0;
-
- if (netif_msg_ifup(nesvnic))
- printk(KERN_INFO PFX "%s: enabling interface\n", netdev->name);
-
- ret = nes_init_nic_qp(nesdev, netdev);
- if (ret) {
- return ret;
- }
-
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- if ((!nesvnic->of_device_registered) && (nesvnic->rdma_enabled)) {
- nesvnic->nesibdev = nes_init_ofa_device(netdev);
- if (nesvnic->nesibdev == NULL) {
- printk(KERN_ERR PFX "%s: nesvnic->nesibdev alloc failed", netdev->name);
- } else {
- nesvnic->nesibdev->nesvnic = nesvnic;
- ret = nes_register_ofa_device(nesvnic->nesibdev);
- if (ret) {
- printk(KERN_ERR PFX "%s: Unable to register RDMA device, ret = %d\n",
- netdev->name, ret);
- }
- }
- }
- /* Set packet filters */
- nic_active_bit = 1 << nesvnic->nic_index;
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
-
- macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
- macaddr_high += (u16)netdev->dev_addr[1];
-
- macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
- macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
- macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
- macaddr_low += (u32)netdev->dev_addr[5];
-
- /* Program the various MAC regs */
- for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
- if (nesvnic->qp_nic_index[i] == 0xf) {
- break;
- }
- nes_debug(NES_DBG_NETDEV, "i=%d, perfect filter table index= %d, PERF FILTER LOW"
- " (Addr:%08X) = %08X, HIGH = %08X.\n",
- i, nesvnic->qp_nic_index[i],
- NES_IDX_PERFECT_FILTER_LOW+
- (nesvnic->qp_nic_index[i] * 8),
- macaddr_low,
- (u32)macaddr_high | NES_MAC_ADDR_VALID |
- ((((u32)nesvnic->nic_index) << 16)));
- nes_write_indexed(nesdev,
- NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
- macaddr_low);
- nes_write_indexed(nesdev,
- NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
- (u32)macaddr_high | NES_MAC_ADDR_VALID |
- ((((u32)nesvnic->nic_index) << 16)));
- }
-
-
- nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
- nesvnic->nic_cq.cq_number);
- nes_read32(nesdev->regs+NES_CQE_ALLOC);
- list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
- first_nesvnic = container_of(list_pos, struct nes_vnic, list);
- if (first_nesvnic->netdev_open == 1)
- break;
- }
- if (first_nesvnic->netdev_open == 0) {
- nes_debug(NES_DBG_INIT, "Setting up MAC interrupt mask.\n");
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK + (0x200 * nesdev->mac_index),
- ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
- NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
- first_nesvnic = nesvnic;
- }
-
- if (first_nesvnic->linkup) {
- /* Enable network packets */
- nesvnic->linkup = 1;
- netif_start_queue(netdev);
- netif_carrier_on(netdev);
- }
-
- spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
- if (nesdev->nesadapter->phy_type[nesdev->mac_index] == NES_PHY_TYPE_SFP_D) {
- nesdev->link_recheck = 1;
- mod_delayed_work(system_wq, &nesdev->work,
- NES_LINK_RECHECK_DELAY);
- }
- spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
-
- spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags);
- if (nesvnic->of_device_registered) {
- nesdev->nesadapter->send_term_ok = 1;
- if (nesvnic->linkup == 1) {
- if (nesdev->iw_status == 0) {
- nesdev->iw_status = 1;
- nes_port_ibevent(nesvnic);
- }
- } else {
- nesdev->iw_status = 0;
- }
- }
- spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags);
-
- napi_enable(&nesvnic->napi);
- nesvnic->netdev_open = 1;
-
- return 0;
-}
-
-
-/**
- * nes_netdev_stop
- */
-static int nes_netdev_stop(struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- u32 nic_active_mask;
- u32 nic_active;
- struct nes_vnic *first_nesvnic = NULL;
- struct list_head *list_pos, *list_temp;
- unsigned long flags;
-
- nes_debug(NES_DBG_SHUTDOWN, "nesvnic=%p, nesdev=%p, netdev=%p %s\n",
- nesvnic, nesdev, netdev, netdev->name);
- if (nesvnic->netdev_open == 0)
- return 0;
-
- if (netif_msg_ifdown(nesvnic))
- printk(KERN_INFO PFX "%s: disabling interface\n", netdev->name);
- netif_carrier_off(netdev);
-
- /* Disable network packets */
- napi_disable(&nesvnic->napi);
- netif_stop_queue(netdev);
- list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
- first_nesvnic = container_of(list_pos, struct nes_vnic, list);
- if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic))
- break;
- }
-
- if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic) &&
- (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) !=
- PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+
- (0x200*nesdev->mac_index), 0xffffffff);
- nes_write_indexed(first_nesvnic->nesdev,
- NES_IDX_MAC_INT_MASK+
- (0x200*first_nesvnic->nesdev->mac_index),
- ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
- NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
- } else {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+(0x200*nesdev->mac_index), 0xffffffff);
- }
-
- nic_active_mask = ~((u32)(1 << nesvnic->nic_index));
- nes_write_indexed(nesdev, NES_IDX_PERFECT_FILTER_HIGH+
- (nesvnic->perfect_filter_index*8), 0);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
- nic_active &= nic_active_mask;
- nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
- nic_active &= nic_active_mask;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
- nic_active &= nic_active_mask;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
- nic_active &= nic_active_mask;
- nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
- nic_active &= nic_active_mask;
- nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
-
- spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags);
- if (nesvnic->of_device_registered) {
- nesdev->nesadapter->send_term_ok = 0;
- nesdev->iw_status = 0;
- if (nesvnic->linkup == 1)
- nes_port_ibevent(nesvnic);
- }
- del_timer_sync(&nesvnic->event_timer);
- nesvnic->event_timer.function = NULL;
- spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags);
-
- nes_destroy_nic_qp(nesvnic);
-
- nesvnic->netdev_open = 0;
-
- return 0;
-}
-
-
-/**
- * nes_nic_send
- */
-static bool nes_nic_send(struct sk_buff *skb, struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_nic *nesnic = &nesvnic->nic;
- struct nes_hw_nic_sq_wqe *nic_sqe;
- struct tcphdr *tcph;
- __le16 *wqe_fragment_length;
- u32 wqe_misc;
- u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
- u16 skb_fragment_index;
- dma_addr_t bus_address;
-
- nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
- wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
-
- /* setup the VLAN tag if present */
- if (skb_vlan_tag_present(skb)) {
- nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
- netdev->name, skb_vlan_tag_get(skb));
- wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
- wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb);
- } else
- wqe_misc = 0;
-
- /* bump past the vlan tag */
- wqe_fragment_length++;
- /* wqe_fragment_address = (u64 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX]; */
- wqe_misc |= NES_NIC_SQ_WQE_COMPLETION;
-
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- if (skb_is_gso(skb)) {
- tcph = tcp_hdr(skb);
- /* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... is_gso = %u seg size = %u\n",
- netdev->name, skb_is_gso(skb), skb_shinfo(skb)->gso_size); */
- wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE | (u16)skb_shinfo(skb)->gso_size;
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
- ((u32)tcph->doff) |
- (((u32)(((unsigned char *)tcph) - skb->data)) << 4));
- }
- } else { /* CHECKSUM_HW */
- wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM;
- }
-
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
- skb->len);
- memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
- skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE), skb_headlen(skb)));
- wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
- skb_headlen(skb)));
- wqe_fragment_length[1] = 0;
- if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
- if ((skb_shinfo(skb)->nr_frags + 1) > 4) {
- nes_debug(NES_DBG_NIC_TX, "%s: Packet with %u fragments not sent, skb_headlen=%u\n",
- netdev->name, skb_shinfo(skb)->nr_frags + 2, skb_headlen(skb));
- kfree_skb(skb);
- nesvnic->tx_sw_dropped++;
- return false;
- }
- set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
- bus_address = pci_map_single(nesdev->pcidev, skb->data + NES_FIRST_FRAG_SIZE,
- skb_headlen(skb) - NES_FIRST_FRAG_SIZE, PCI_DMA_TODEVICE);
- wqe_fragment_length[wqe_fragment_index++] =
- cpu_to_le16(skb_headlen(skb) - NES_FIRST_FRAG_SIZE);
- wqe_fragment_length[wqe_fragment_index] = 0;
- set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
- ((u64)(bus_address)));
- nesnic->tx_skb[nesnic->sq_head] = skb;
- }
-
- if (skb_headlen(skb) == skb->len) {
- if (skb_headlen(skb) <= NES_FIRST_FRAG_SIZE) {
- nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_2_1_IDX] = 0;
- nesnic->tx_skb[nesnic->sq_head] = skb;
- }
- } else {
- /* Deal with Fragments */
- nesnic->tx_skb[nesnic->sq_head] = skb;
- for (skb_fragment_index = 0; skb_fragment_index < skb_shinfo(skb)->nr_frags;
- skb_fragment_index++) {
- skb_frag_t *frag =
- &skb_shinfo(skb)->frags[skb_fragment_index];
- bus_address = skb_frag_dma_map(&nesdev->pcidev->dev,
- frag, 0, skb_frag_size(frag),
- DMA_TO_DEVICE);
- wqe_fragment_length[wqe_fragment_index] =
- cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[skb_fragment_index]));
- set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
- bus_address);
- wqe_fragment_index++;
- if (wqe_fragment_index < 5)
- wqe_fragment_length[wqe_fragment_index] = 0;
- }
- }
-
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX, wqe_misc);
- nesnic->sq_head++;
- nesnic->sq_head &= nesnic->sq_size - 1;
- return true;
-}
-
-
-/**
- * nes_netdev_start_xmit
- */
-static netdev_tx_t nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_hw_nic *nesnic = &nesvnic->nic;
- struct nes_hw_nic_sq_wqe *nic_sqe;
- struct tcphdr *tcph;
- /* struct udphdr *udph; */
-#define NES_MAX_TSO_FRAGS MAX_SKB_FRAGS
- /* 64K segment plus overflow on each side */
- dma_addr_t tso_bus_address[NES_MAX_TSO_FRAGS];
- dma_addr_t bus_address;
- u32 tso_frag_index;
- u32 tso_frag_count;
- u32 tso_wqe_length;
- u32 curr_tcp_seq;
- u32 wqe_count=1;
- struct iphdr *iph;
- __le16 *wqe_fragment_length;
- u32 nr_frags;
- u32 original_first_length;
- /* u64 *wqe_fragment_address; */
- /* first fragment (0) is used by copy buffer */
- u16 wqe_fragment_index=1;
- u16 hoffset;
- u16 nhoffset;
- u16 wqes_needed;
- u16 wqes_available;
- u32 wqe_misc;
-
- /*
- * nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
- * " (%u frags), tso_size=%u\n",
- * netdev->name, skb->len, skb_headlen(skb),
- * skb_shinfo(skb)->nr_frags, skb_is_gso(skb));
- */
-
- if (netif_queue_stopped(netdev))
- return NETDEV_TX_BUSY;
-
- /* Check if SQ is full */
- if ((((nesnic->sq_tail+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) == 1) {
- if (!netif_queue_stopped(netdev)) {
- netif_stop_queue(netdev);
- barrier();
- if ((((((volatile u16)nesnic->sq_tail)+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) != 1) {
- netif_start_queue(netdev);
- goto sq_no_longer_full;
- }
- }
- nesvnic->sq_full++;
- return NETDEV_TX_BUSY;
- }
-
-sq_no_longer_full:
- nr_frags = skb_shinfo(skb)->nr_frags;
- if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
- nr_frags++;
- }
- /* Check if too many fragments */
- if (unlikely((nr_frags > 4))) {
- if (skb_is_gso(skb)) {
- nesvnic->segmented_tso_requests++;
- nesvnic->tso_requests++;
- /* Basically 4 fragments available per WQE with extended fragments */
- wqes_needed = nr_frags >> 2;
- wqes_needed += (nr_frags&3)?1:0;
- wqes_available = (((nesnic->sq_tail+nesnic->sq_size)-nesnic->sq_head) - 1) &
- (nesnic->sq_size - 1);
-
- if (unlikely(wqes_needed > wqes_available)) {
- if (!netif_queue_stopped(netdev)) {
- netif_stop_queue(netdev);
- barrier();
- wqes_available = (((((volatile u16)nesnic->sq_tail)+nesnic->sq_size)-nesnic->sq_head) - 1) &
- (nesnic->sq_size - 1);
- if (wqes_needed <= wqes_available) {
- netif_start_queue(netdev);
- goto tso_sq_no_longer_full;
- }
- }
- nesvnic->sq_full++;
- nes_debug(NES_DBG_NIC_TX, "%s: HNIC SQ full- TSO request has too many frags!\n",
- netdev->name);
- return NETDEV_TX_BUSY;
- }
-tso_sq_no_longer_full:
- /* Map all the buffers */
- for (tso_frag_count=0; tso_frag_count < skb_shinfo(skb)->nr_frags;
- tso_frag_count++) {
- skb_frag_t *frag =
- &skb_shinfo(skb)->frags[tso_frag_count];
- tso_bus_address[tso_frag_count] =
- skb_frag_dma_map(&nesdev->pcidev->dev,
- frag, 0, skb_frag_size(frag),
- DMA_TO_DEVICE);
- }
-
- tso_frag_index = 0;
- curr_tcp_seq = ntohl(tcp_hdr(skb)->seq);
- hoffset = skb_transport_header(skb) - skb->data;
- nhoffset = skb_network_header(skb) - skb->data;
- original_first_length = hoffset + ((((struct tcphdr *)skb_transport_header(skb))->doff)<<2);
-
- for (wqe_count=0; wqe_count<((u32)wqes_needed); wqe_count++) {
- tso_wqe_length = 0;
- nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
- wqe_fragment_length =
- (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
- /* setup the VLAN tag if present */
- if (skb_vlan_tag_present(skb)) {
- nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
- netdev->name,
- skb_vlan_tag_get(skb));
- wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
- wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb);
- } else
- wqe_misc = 0;
-
- /* bump past the vlan tag */
- wqe_fragment_length++;
-
- /* Assumes header totally fits in allocated buffer and is in first fragment */
- if (original_first_length > NES_FIRST_FRAG_SIZE) {
- nes_debug(NES_DBG_NIC_TX, "ERROR: SKB header too big, headlen=%u, FIRST_FRAG_SIZE=%u\n",
- original_first_length, NES_FIRST_FRAG_SIZE);
- nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
- " (%u frags), is_gso = %u tso_size=%u\n",
- netdev->name,
- skb->len, skb_headlen(skb),
- skb_shinfo(skb)->nr_frags, skb_is_gso(skb), skb_shinfo(skb)->gso_size);
- }
- memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
- skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE),
- original_first_length));
- iph = (struct iphdr *)
- (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[nhoffset]);
- tcph = (struct tcphdr *)
- (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[hoffset]);
- if ((wqe_count+1)!=(u32)wqes_needed) {
- tcph->fin = 0;
- tcph->psh = 0;
- tcph->rst = 0;
- tcph->urg = 0;
- }
- if (wqe_count) {
- tcph->syn = 0;
- }
- tcph->seq = htonl(curr_tcp_seq);
- wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
- original_first_length));
-
- wqe_fragment_index = 1;
- if ((wqe_count==0) && (skb_headlen(skb) > original_first_length)) {
- set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
- bus_address = pci_map_single(nesdev->pcidev, skb->data + original_first_length,
- skb_headlen(skb) - original_first_length, PCI_DMA_TODEVICE);
- wqe_fragment_length[wqe_fragment_index++] =
- cpu_to_le16(skb_headlen(skb) - original_first_length);
- wqe_fragment_length[wqe_fragment_index] = 0;
- set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
- bus_address);
- tso_wqe_length += skb_headlen(skb) -
- original_first_length;
- }
- while (wqe_fragment_index < 5) {
- wqe_fragment_length[wqe_fragment_index] =
- cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index]));
- set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
- (u64)tso_bus_address[tso_frag_index]);
- wqe_fragment_index++;
- tso_wqe_length += skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index++]);
- if (wqe_fragment_index < 5)
- wqe_fragment_length[wqe_fragment_index] = 0;
- if (tso_frag_index == tso_frag_count)
- break;
- }
- if ((wqe_count+1) == (u32)wqes_needed) {
- nesnic->tx_skb[nesnic->sq_head] = skb;
- } else {
- nesnic->tx_skb[nesnic->sq_head] = NULL;
- }
- wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_shinfo(skb)->gso_size;
- if ((tso_wqe_length + original_first_length) > skb_shinfo(skb)->gso_size) {
- wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE;
- } else {
- iph->tot_len = htons(tso_wqe_length + original_first_length - nhoffset);
- }
-
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX,
- wqe_misc);
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
- ((u32)tcph->doff) | (((u32)hoffset) << 4));
-
- set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
- tso_wqe_length + original_first_length);
- curr_tcp_seq += tso_wqe_length;
- nesnic->sq_head++;
- nesnic->sq_head &= nesnic->sq_size-1;
- }
- } else {
- hoffset = skb_transport_header(skb) - skb->data;
- nhoffset = skb_network_header(skb) - skb->data;
- if (skb_linearize(skb)) {
- nesvnic->tx_sw_dropped++;
- kfree_skb(skb);
- return NETDEV_TX_OK;
- }
- nesvnic->linearized_skbs++;
- skb_set_transport_header(skb, hoffset);
- skb_set_network_header(skb, nhoffset);
- if (!nes_nic_send(skb, netdev))
- return NETDEV_TX_OK;
- }
- } else {
- if (!nes_nic_send(skb, netdev))
- return NETDEV_TX_OK;
- }
-
- barrier();
-
- if (wqe_count)
- nes_write32(nesdev->regs+NES_WQE_ALLOC,
- (wqe_count << 24) | (1 << 23) | nesvnic->nic.qp_id);
-
- netif_trans_update(netdev);
-
- return NETDEV_TX_OK;
-}
-
-
-/**
- * nes_netdev_get_stats
- */
-static struct net_device_stats *nes_netdev_get_stats(struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- u64 u64temp;
- u32 u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_DISCARD + (nesvnic->nic_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->endnode_nstat_rx_discard += u32temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO + (nesvnic->nic_index*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
-
- nesvnic->endnode_nstat_rx_octets += u64temp;
- nesvnic->netstats.rx_bytes += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO + (nesvnic->nic_index*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
-
- nesvnic->endnode_nstat_rx_frames += u64temp;
- nesvnic->netstats.rx_packets += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO + (nesvnic->nic_index*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
-
- nesvnic->endnode_nstat_tx_octets += u64temp;
- nesvnic->netstats.tx_bytes += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO + (nesvnic->nic_index*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
-
- nesvnic->endnode_nstat_tx_frames += u64temp;
- nesvnic->netstats.tx_packets += u64temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_short_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_length_errors += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_crc_errors += u32temp;
- nesvnic->netstats.rx_crc_errors += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_tx_errors += u32temp;
- nesvnic->netstats.tx_errors += u32temp;
-
- return &nesvnic->netstats;
-}
-
-
-/**
- * nes_netdev_tx_timeout
- */
-static void nes_netdev_tx_timeout(struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
-
- if (netif_msg_timer(nesvnic))
- nes_debug(NES_DBG_NIC_TX, "%s: tx timeout\n", netdev->name);
-}
-
-
-/**
- * nes_netdev_set_mac_address
- */
-static int nes_netdev_set_mac_address(struct net_device *netdev, void *p)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct sockaddr *mac_addr = p;
- int i;
- u32 macaddr_low;
- u16 macaddr_high;
-
- if (!is_valid_ether_addr(mac_addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(netdev->dev_addr, mac_addr->sa_data, netdev->addr_len);
- printk(PFX "%s: Address length = %d, Address = %pM\n",
- __func__, netdev->addr_len, mac_addr->sa_data);
- macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
- macaddr_high += (u16)netdev->dev_addr[1];
- macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
- macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
- macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
- macaddr_low += (u32)netdev->dev_addr[5];
-
- for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
- if (nesvnic->qp_nic_index[i] == 0xf) {
- break;
- }
- nes_write_indexed(nesdev,
- NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
- macaddr_low);
- nes_write_indexed(nesdev,
- NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
- (u32)macaddr_high | NES_MAC_ADDR_VALID |
- ((((u32)nesvnic->nic_index) << 16)));
- }
- return 0;
-}
-
-
-static void set_allmulti(struct nes_device *nesdev, u32 nic_active_bit)
-{
- u32 nic_active;
-
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
- nic_active &= ~nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
-}
-
-#define get_addr(addrs, index) ((addrs) + (index) * ETH_ALEN)
-
-/**
- * nes_netdev_set_multicast_list
- */
-static void nes_netdev_set_multicast_list(struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
- u32 nic_active_bit;
- u32 nic_active;
- u32 perfect_filter_register_address;
- u32 macaddr_low;
- u16 macaddr_high;
- u8 mc_all_on = 0;
- u8 mc_index;
- int mc_nic_index = -1;
- u8 pft_entries_preallocated = max(nesadapter->adapter_fcn_count *
- nics_per_function, 4);
- u8 max_pft_entries_avaiable = NES_PFT_SIZE - pft_entries_preallocated;
- unsigned long flags;
- int mc_count = netdev_mc_count(netdev);
-
- spin_lock_irqsave(&nesadapter->resource_lock, flags);
- nic_active_bit = 1 << nesvnic->nic_index;
-
- if (netdev->flags & IFF_PROMISC) {
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
- nic_active |= nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
- mc_all_on = 1;
- } else if ((netdev->flags & IFF_ALLMULTI) ||
- (nesvnic->nic_index > 3)) {
- set_allmulti(nesdev, nic_active_bit);
- mc_all_on = 1;
- } else {
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
- nic_active &= ~nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
- nic_active &= ~nic_active_bit;
- nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
- }
-
- nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscuous = %d, All Multicast = %d.\n",
- mc_count, !!(netdev->flags & IFF_PROMISC),
- !!(netdev->flags & IFF_ALLMULTI));
- if (!mc_all_on) {
- char *addrs;
- int i;
- struct netdev_hw_addr *ha;
-
- addrs = kmalloc_array(mc_count, ETH_ALEN, GFP_ATOMIC);
- if (!addrs) {
- set_allmulti(nesdev, nic_active_bit);
- goto unlock;
- }
- i = 0;
- netdev_for_each_mc_addr(ha, netdev)
- memcpy(get_addr(addrs, i++), ha->addr, ETH_ALEN);
-
- perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW +
- pft_entries_preallocated * 0x8;
- for (i = 0, mc_index = 0; mc_index < max_pft_entries_avaiable;
- mc_index++) {
- while (i < mc_count && nesvnic->mcrq_mcast_filter &&
- ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic,
- get_addr(addrs, i++))) == 0));
- if (mc_nic_index < 0)
- mc_nic_index = nesvnic->nic_index;
- while (nesadapter->pft_mcast_map[mc_index] < 16 &&
- nesadapter->pft_mcast_map[mc_index] !=
- nesvnic->nic_index &&
- mc_index < max_pft_entries_avaiable) {
- nes_debug(NES_DBG_NIC_RX,
- "mc_index=%d skipping nic_index=%d, used for=%d\n",
- mc_index, nesvnic->nic_index,
- nesadapter->pft_mcast_map[mc_index]);
- mc_index++;
- }
- if (mc_index >= max_pft_entries_avaiable)
- break;
- if (i < mc_count) {
- char *addr = get_addr(addrs, i++);
-
- nes_debug(NES_DBG_NIC_RX, "Assigning MC Address %pM to register 0x%04X nic_idx=%d\n",
- addr,
- perfect_filter_register_address+(mc_index * 8),
- mc_nic_index);
- macaddr_high = ((u8) addr[0]) << 8;
- macaddr_high += (u8) addr[1];
- macaddr_low = ((u8) addr[2]) << 24;
- macaddr_low += ((u8) addr[3]) << 16;
- macaddr_low += ((u8) addr[4]) << 8;
- macaddr_low += (u8) addr[5];
-
- nes_write_indexed(nesdev,
- perfect_filter_register_address+(mc_index * 8),
- macaddr_low);
- nes_write_indexed(nesdev,
- perfect_filter_register_address+4+(mc_index * 8),
- (u32)macaddr_high | NES_MAC_ADDR_VALID |
- ((((u32)(1<<mc_nic_index)) << 16)));
- nesadapter->pft_mcast_map[mc_index] =
- nesvnic->nic_index;
- } else {
- nes_debug(NES_DBG_NIC_RX, "Clearing MC Address at register 0x%04X\n",
- perfect_filter_register_address+(mc_index * 8));
- nes_write_indexed(nesdev,
- perfect_filter_register_address+4+(mc_index * 8),
- 0);
- nesadapter->pft_mcast_map[mc_index] = 255;
- }
- }
- kfree(addrs);
- /* PFT is not large enough */
- if (i < mc_count)
- set_allmulti(nesdev, nic_active_bit);
- }
-
-unlock:
- spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
-}
-
-
-/**
- * nes_netdev_change_mtu
- */
-static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- u8 jumbomode = 0;
- u32 nic_active;
- u32 nic_active_bit;
- u32 uc_all_active;
- u32 mc_all_active;
-
- netdev->mtu = new_mtu;
- nesvnic->max_frame_size = new_mtu + VLAN_ETH_HLEN;
-
- if (netdev->mtu > ETH_DATA_LEN) {
- jumbomode=1;
- }
- nes_nic_init_timer_defaults(nesdev, jumbomode);
-
- if (netif_running(netdev)) {
- nic_active_bit = 1 << nesvnic->nic_index;
- mc_all_active = nes_read_indexed(nesdev,
- NES_IDX_NIC_MULTICAST_ALL) & nic_active_bit;
- uc_all_active = nes_read_indexed(nesdev,
- NES_IDX_NIC_UNICAST_ALL) & nic_active_bit;
-
- nes_netdev_stop(netdev);
- nes_netdev_open(netdev);
-
- nic_active = nes_read_indexed(nesdev,
- NES_IDX_NIC_MULTICAST_ALL);
- nic_active |= mc_all_active;
- nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL,
- nic_active);
-
- nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
- nic_active |= uc_all_active;
- nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
- }
-
- return 0;
-}
-
-
-static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = {
- "Link Change Interrupts",
- "Linearized SKBs",
- "T/GSO Requests",
- "Pause Frames Sent",
- "Pause Frames Received",
- "Internal Routing Errors",
- "SQ SW Dropped SKBs",
- "SQ Full",
- "Segmented TSO Requests",
- "Rx Symbol Errors",
- "Rx Jabber Errors",
- "Rx Oversized Frames",
- "Rx Short Frames",
- "Rx Length Errors",
- "Rx CRC Errors",
- "Rx Port Discard",
- "Endnode Rx Discards",
- "Endnode Rx Octets",
- "Endnode Rx Frames",
- "Endnode Tx Octets",
- "Endnode Tx Frames",
- "Tx Errors",
- "mh detected",
- "mh pauses",
- "Retransmission Count",
- "CM Connects",
- "CM Accepts",
- "Disconnects",
- "Connected Events",
- "Connect Requests",
- "CM Rejects",
- "ModifyQP Timeouts",
- "CreateQPs",
- "SW DestroyQPs",
- "DestroyQPs",
- "CM Closes",
- "CM Packets Sent",
- "CM Packets Bounced",
- "CM Packets Created",
- "CM Packets Rcvd",
- "CM Packets Dropped",
- "CM Packets Retrans",
- "CM Listens Created",
- "CM Listens Destroyed",
- "CM Backlog Drops",
- "CM Loopbacks",
- "CM Nodes Created",
- "CM Nodes Destroyed",
- "CM Accel Drops",
- "CM Resets Received",
- "Free 4Kpbls",
- "Free 256pbls",
- "Timer Inits",
- "PAU CreateQPs",
- "PAU DestroyQPs",
-};
-#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset)
-
-
-/**
- * nes_netdev_get_sset_count
- */
-static int nes_netdev_get_sset_count(struct net_device *netdev, int stringset)
-{
- if (stringset == ETH_SS_STATS)
- return NES_ETHTOOL_STAT_COUNT;
- else
- return -EINVAL;
-}
-
-
-/**
- * nes_netdev_get_strings
- */
-static void nes_netdev_get_strings(struct net_device *netdev, u32 stringset,
- u8 *ethtool_strings)
-{
- if (stringset == ETH_SS_STATS)
- memcpy(ethtool_strings,
- &nes_ethtool_stringset,
- sizeof(nes_ethtool_stringset));
-}
-
-
-/**
- * nes_netdev_get_ethtool_stats
- */
-
-static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *target_ethtool_stats, u64 *target_stat_values)
-{
- u64 u64temp;
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 nic_count;
- u32 u32temp;
- u32 index = 0;
-
- target_ethtool_stats->n_stats = NES_ETHTOOL_STAT_COUNT;
- target_stat_values[index] = nesvnic->nesdev->link_status_interrupts;
- target_stat_values[++index] = nesvnic->linearized_skbs;
- target_stat_values[++index] = nesvnic->tso_requests;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_TX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_pause_frames_sent += u32temp;
- target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_sent;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_pause_frames_received += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_PORT_RX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
- nesvnic->nesdev->port_rx_discards += u32temp;
- nesvnic->netstats.rx_dropped += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_PORT_TX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
- nesvnic->nesdev->port_tx_discards += u32temp;
- nesvnic->netstats.tx_dropped += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_short_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->netstats.rx_length_errors += u32temp;
- nesvnic->nesdev->mac_rx_errors += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_rx_errors += u32temp;
- nesvnic->nesdev->mac_rx_crc_errors += u32temp;
- nesvnic->netstats.rx_crc_errors += u32temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
- nesvnic->nesdev->mac_tx_errors += u32temp;
- nesvnic->netstats.tx_errors += u32temp;
-
- for (nic_count = 0; nic_count < NES_MAX_PORT_COUNT; nic_count++) {
- if (nesvnic->qp_nic_index[nic_count] == 0xf)
- break;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_DISCARD +
- (nesvnic->qp_nic_index[nic_count]*0x200));
- nesvnic->netstats.rx_dropped += u32temp;
- nesvnic->endnode_nstat_rx_discard += u32temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO +
- (nesvnic->qp_nic_index[nic_count]*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI +
- (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
-
- nesvnic->endnode_nstat_rx_octets += u64temp;
- nesvnic->netstats.rx_bytes += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO +
- (nesvnic->qp_nic_index[nic_count]*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI +
- (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
-
- nesvnic->endnode_nstat_rx_frames += u64temp;
- nesvnic->netstats.rx_packets += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO +
- (nesvnic->qp_nic_index[nic_count]*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI +
- (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
-
- nesvnic->endnode_nstat_tx_octets += u64temp;
- nesvnic->netstats.tx_bytes += u64temp;
-
- u64temp = (u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO +
- (nesvnic->qp_nic_index[nic_count]*0x200));
- u64temp += ((u64)nes_read_indexed(nesdev,
- NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI +
- (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
-
- nesvnic->endnode_nstat_tx_frames += u64temp;
- nesvnic->netstats.tx_packets += u64temp;
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_IPV4_TCP_REXMITS + (nesvnic->qp_nic_index[nic_count]*0x200));
- nesvnic->endnode_ipv4_tcp_retransmits += u32temp;
- }
-
- target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_received;
- target_stat_values[++index] = nesdev->nesadapter->nic_rx_eth_route_err;
- target_stat_values[++index] = nesvnic->tx_sw_dropped;
- target_stat_values[++index] = nesvnic->sq_full;
- target_stat_values[++index] = nesvnic->segmented_tso_requests;
- target_stat_values[++index] = nesvnic->nesdev->mac_rx_symbol_err_frames;
- target_stat_values[++index] = nesvnic->nesdev->mac_rx_jabber_frames;
- target_stat_values[++index] = nesvnic->nesdev->mac_rx_oversized_frames;
- target_stat_values[++index] = nesvnic->nesdev->mac_rx_short_frames;
- target_stat_values[++index] = nesvnic->netstats.rx_length_errors;
- target_stat_values[++index] = nesvnic->nesdev->mac_rx_crc_errors;
- target_stat_values[++index] = nesvnic->nesdev->port_rx_discards;
- target_stat_values[++index] = nesvnic->endnode_nstat_rx_discard;
- target_stat_values[++index] = nesvnic->endnode_nstat_rx_octets;
- target_stat_values[++index] = nesvnic->endnode_nstat_rx_frames;
- target_stat_values[++index] = nesvnic->endnode_nstat_tx_octets;
- target_stat_values[++index] = nesvnic->endnode_nstat_tx_frames;
- target_stat_values[++index] = nesvnic->nesdev->mac_tx_errors;
- target_stat_values[++index] = mh_detected;
- target_stat_values[++index] = mh_pauses_sent;
- target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
- target_stat_values[++index] = atomic_read(&cm_connects);
- target_stat_values[++index] = atomic_read(&cm_accepts);
- target_stat_values[++index] = atomic_read(&cm_disconnects);
- target_stat_values[++index] = atomic_read(&cm_connecteds);
- target_stat_values[++index] = atomic_read(&cm_connect_reqs);
- target_stat_values[++index] = atomic_read(&cm_rejects);
- target_stat_values[++index] = atomic_read(&mod_qp_timouts);
- target_stat_values[++index] = atomic_read(&qps_created);
- target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
- target_stat_values[++index] = atomic_read(&qps_destroyed);
- target_stat_values[++index] = atomic_read(&cm_closes);
- target_stat_values[++index] = cm_packets_sent;
- target_stat_values[++index] = cm_packets_bounced;
- target_stat_values[++index] = cm_packets_created;
- target_stat_values[++index] = cm_packets_received;
- target_stat_values[++index] = cm_packets_dropped;
- target_stat_values[++index] = cm_packets_retrans;
- target_stat_values[++index] = atomic_read(&cm_listens_created);
- target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
- target_stat_values[++index] = cm_backlog_drops;
- target_stat_values[++index] = atomic_read(&cm_loopbacks);
- target_stat_values[++index] = atomic_read(&cm_nodes_created);
- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
- target_stat_values[++index] = atomic_read(&cm_resets_recvd);
- target_stat_values[++index] = nesadapter->free_4kpbl;
- target_stat_values[++index] = nesadapter->free_256pbl;
- target_stat_values[++index] = int_mod_timer_init;
- target_stat_values[++index] = atomic_read(&pau_qps_created);
- target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
-}
-
-/**
- * nes_netdev_get_drvinfo
- */
-static void nes_netdev_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *drvinfo)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
-
- strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
- strlcpy(drvinfo->bus_info, pci_name(nesvnic->nesdev->pcidev),
- sizeof(drvinfo->bus_info));
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%u.%u", nesadapter->firmware_version >> 16,
- nesadapter->firmware_version & 0x000000ff);
- strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
-}
-
-
-/**
- * nes_netdev_set_coalesce
- */
-static int nes_netdev_set_coalesce(struct net_device *netdev,
- struct ethtool_coalesce *et_coalesce)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
- unsigned long flags;
-
- spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
- if (et_coalesce->rx_max_coalesced_frames_low) {
- shared_timer->threshold_low = et_coalesce->rx_max_coalesced_frames_low;
- }
- if (et_coalesce->rx_max_coalesced_frames_irq) {
- shared_timer->threshold_target = et_coalesce->rx_max_coalesced_frames_irq;
- }
- if (et_coalesce->rx_max_coalesced_frames_high) {
- shared_timer->threshold_high = et_coalesce->rx_max_coalesced_frames_high;
- }
- if (et_coalesce->rx_coalesce_usecs_low) {
- shared_timer->timer_in_use_min = et_coalesce->rx_coalesce_usecs_low;
- }
- if (et_coalesce->rx_coalesce_usecs_high) {
- shared_timer->timer_in_use_max = et_coalesce->rx_coalesce_usecs_high;
- }
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
-
- /* using this to drive total interrupt moderation */
- nesadapter->et_rx_coalesce_usecs_irq = et_coalesce->rx_coalesce_usecs_irq;
- if (et_coalesce->use_adaptive_rx_coalesce) {
- nesadapter->et_use_adaptive_rx_coalesce = 1;
- nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
- nesadapter->et_rx_coalesce_usecs_irq = 0;
- if (et_coalesce->pkt_rate_low) {
- nesadapter->et_pkt_rate_low = et_coalesce->pkt_rate_low;
- }
- } else {
- nesadapter->et_use_adaptive_rx_coalesce = 0;
- nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
- if (nesadapter->et_rx_coalesce_usecs_irq) {
- nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
- 0x80000000 | ((u32)(nesadapter->et_rx_coalesce_usecs_irq*8)));
- }
- }
- return 0;
-}
-
-
-/**
- * nes_netdev_get_coalesce
- */
-static int nes_netdev_get_coalesce(struct net_device *netdev,
- struct ethtool_coalesce *et_coalesce)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct ethtool_coalesce temp_et_coalesce;
- struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
- unsigned long flags;
-
- memset(&temp_et_coalesce, 0, sizeof(temp_et_coalesce));
- temp_et_coalesce.rx_coalesce_usecs_irq = nesadapter->et_rx_coalesce_usecs_irq;
- temp_et_coalesce.use_adaptive_rx_coalesce = nesadapter->et_use_adaptive_rx_coalesce;
- temp_et_coalesce.rate_sample_interval = nesadapter->et_rate_sample_interval;
- temp_et_coalesce.pkt_rate_low = nesadapter->et_pkt_rate_low;
- spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
- temp_et_coalesce.rx_max_coalesced_frames_low = shared_timer->threshold_low;
- temp_et_coalesce.rx_max_coalesced_frames_irq = shared_timer->threshold_target;
- temp_et_coalesce.rx_max_coalesced_frames_high = shared_timer->threshold_high;
- temp_et_coalesce.rx_coalesce_usecs_low = shared_timer->timer_in_use_min;
- temp_et_coalesce.rx_coalesce_usecs_high = shared_timer->timer_in_use_max;
- if (nesadapter->et_use_adaptive_rx_coalesce) {
- temp_et_coalesce.rx_coalesce_usecs_irq = shared_timer->timer_in_use;
- }
- spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
- memcpy(et_coalesce, &temp_et_coalesce, sizeof(*et_coalesce));
- return 0;
-}
-
-
-/**
- * nes_netdev_get_pauseparam
- */
-static void nes_netdev_get_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *et_pauseparam)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
-
- et_pauseparam->autoneg = 0;
- et_pauseparam->rx_pause = (nesvnic->nesdev->disable_rx_flow_control == 0) ? 1:0;
- et_pauseparam->tx_pause = (nesvnic->nesdev->disable_tx_flow_control == 0) ? 1:0;
-}
-
-
-/**
- * nes_netdev_set_pauseparam
- */
-static int nes_netdev_set_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *et_pauseparam)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- u32 u32temp;
-
- if (et_pauseparam->autoneg) {
- /* TODO: should return unsupported */
- return 0;
- }
- if ((et_pauseparam->tx_pause == 1) && (nesdev->disable_tx_flow_control == 1)) {
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
- u32temp |= NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
- nes_write_indexed(nesdev,
- NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
- nesdev->disable_tx_flow_control = 0;
- } else if ((et_pauseparam->tx_pause == 0) && (nesdev->disable_tx_flow_control == 0)) {
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
- u32temp &= ~NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
- nes_write_indexed(nesdev,
- NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
- nesdev->disable_tx_flow_control = 1;
- }
- if ((et_pauseparam->rx_pause == 1) && (nesdev->disable_rx_flow_control == 1)) {
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
- u32temp &= ~NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
- nes_write_indexed(nesdev,
- NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
- nesdev->disable_rx_flow_control = 0;
- } else if ((et_pauseparam->rx_pause == 0) && (nesdev->disable_rx_flow_control == 0)) {
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
- u32temp |= NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
- nes_write_indexed(nesdev,
- NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
- nesdev->disable_rx_flow_control = 1;
- }
-
- return 0;
-}
-
-
-/**
- * nes_netdev_get_settings
- */
-static int nes_netdev_get_link_ksettings(struct net_device *netdev,
- struct ethtool_link_ksettings *cmd)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 mac_index = nesdev->mac_index;
- u8 phy_type = nesadapter->phy_type[mac_index];
- u8 phy_index = nesadapter->phy_index[mac_index];
- u16 phy_data;
- u32 supported, advertising;
-
- cmd->base.duplex = DUPLEX_FULL;
- cmd->base.port = PORT_MII;
-
- if (nesadapter->OneG_Mode) {
- cmd->base.speed = SPEED_1000;
- if (phy_type == NES_PHY_TYPE_PUMA_1G) {
- supported = SUPPORTED_1000baseT_Full;
- advertising = ADVERTISED_1000baseT_Full;
- cmd->base.autoneg = AUTONEG_DISABLE;
- cmd->base.phy_address = mac_index;
- } else {
- unsigned long flags;
-
- supported = SUPPORTED_1000baseT_Full
- | SUPPORTED_Autoneg;
- advertising = ADVERTISED_1000baseT_Full
- | ADVERTISED_Autoneg;
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- if (phy_data & 0x1000)
- cmd->base.autoneg = AUTONEG_ENABLE;
- else
- cmd->base.autoneg = AUTONEG_DISABLE;
- cmd->base.phy_address = phy_index;
- }
- ethtool_convert_legacy_u32_to_link_mode(
- cmd->link_modes.supported, supported);
- ethtool_convert_legacy_u32_to_link_mode(
- cmd->link_modes.advertising, advertising);
- return 0;
- }
- if ((phy_type == NES_PHY_TYPE_ARGUS) ||
- (phy_type == NES_PHY_TYPE_SFP_D) ||
- (phy_type == NES_PHY_TYPE_KR)) {
- cmd->base.port = PORT_FIBRE;
- supported = SUPPORTED_FIBRE;
- advertising = ADVERTISED_FIBRE;
- cmd->base.phy_address = phy_index;
- } else {
- supported = SUPPORTED_10000baseT_Full;
- advertising = ADVERTISED_10000baseT_Full;
- cmd->base.phy_address = mac_index;
- }
- cmd->base.speed = SPEED_10000;
- cmd->base.autoneg = AUTONEG_DISABLE;
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
- supported);
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
- advertising);
-
- return 0;
-}
-
-
-/**
- * nes_netdev_set_settings
- */
-static int
-nes_netdev_set_link_ksettings(struct net_device *netdev,
- const struct ethtool_link_ksettings *cmd)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- if ((nesadapter->OneG_Mode) &&
- (nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) {
- unsigned long flags;
- u16 phy_data;
- u8 phy_index = nesadapter->phy_index[nesdev->mac_index];
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
- if (cmd->base.autoneg) {
- /* Turn on Full duplex, Autoneg, and restart autonegotiation */
- phy_data |= 0x1300;
- } else {
- /* Turn off autoneg */
- phy_data &= ~0x1000;
- }
- nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- }
-
- return 0;
-}
-
-
-static const struct ethtool_ops nes_ethtool_ops = {
- .get_link = ethtool_op_get_link,
- .get_strings = nes_netdev_get_strings,
- .get_sset_count = nes_netdev_get_sset_count,
- .get_ethtool_stats = nes_netdev_get_ethtool_stats,
- .get_drvinfo = nes_netdev_get_drvinfo,
- .get_coalesce = nes_netdev_get_coalesce,
- .set_coalesce = nes_netdev_set_coalesce,
- .get_pauseparam = nes_netdev_get_pauseparam,
- .set_pauseparam = nes_netdev_set_pauseparam,
- .get_link_ksettings = nes_netdev_get_link_ksettings,
- .set_link_ksettings = nes_netdev_set_link_ksettings,
-};
-
-static void nes_vlan_mode(struct net_device *netdev, struct nes_device *nesdev, netdev_features_t features)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 u32temp;
- unsigned long flags;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
-
- nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name);
-
- /* Enable/Disable VLAN Stripping */
- u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG);
- if (features & NETIF_F_HW_VLAN_CTAG_RX)
- u32temp &= 0xfdffffff;
- else
- u32temp |= 0x02000000;
-
- nes_write_indexed(nesdev, NES_IDX_PCIX_DIAG, u32temp);
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
-}
-
-static netdev_features_t nes_fix_features(struct net_device *netdev, netdev_features_t features)
-{
- /*
- * Since there is no support for separate rx/tx vlan accel
- * enable/disable make sure tx flag is always in same state as rx.
- */
- if (features & NETIF_F_HW_VLAN_CTAG_RX)
- features |= NETIF_F_HW_VLAN_CTAG_TX;
- else
- features &= ~NETIF_F_HW_VLAN_CTAG_TX;
-
- return features;
-}
-
-static int nes_set_features(struct net_device *netdev, netdev_features_t features)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- u32 changed = netdev->features ^ features;
-
- if (changed & NETIF_F_HW_VLAN_CTAG_RX)
- nes_vlan_mode(netdev, nesdev, features);
-
- return 0;
-}
-
-static const struct net_device_ops nes_netdev_ops = {
- .ndo_open = nes_netdev_open,
- .ndo_stop = nes_netdev_stop,
- .ndo_start_xmit = nes_netdev_start_xmit,
- .ndo_get_stats = nes_netdev_get_stats,
- .ndo_tx_timeout = nes_netdev_tx_timeout,
- .ndo_set_mac_address = nes_netdev_set_mac_address,
- .ndo_set_rx_mode = nes_netdev_set_multicast_list,
- .ndo_change_mtu = nes_netdev_change_mtu,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_fix_features = nes_fix_features,
- .ndo_set_features = nes_set_features,
-};
-
-/**
- * nes_netdev_init - initialize network device
- */
-struct net_device *nes_netdev_init(struct nes_device *nesdev,
- void __iomem *mmio_addr)
-{
- u64 u64temp;
- struct nes_vnic *nesvnic;
- struct net_device *netdev;
- struct nic_qp_map *curr_qp_map;
- u8 phy_type = nesdev->nesadapter->phy_type[nesdev->mac_index];
-
- netdev = alloc_etherdev(sizeof(struct nes_vnic));
- if (!netdev) {
- printk(KERN_ERR PFX "nesvnic etherdev alloc failed");
- return NULL;
- }
- nesvnic = netdev_priv(netdev);
-
- nes_debug(NES_DBG_INIT, "netdev = %p, %s\n", netdev, netdev->name);
-
- SET_NETDEV_DEV(netdev, &nesdev->pcidev->dev);
-
- netdev->watchdog_timeo = NES_TX_TIMEOUT;
- netdev->irq = nesdev->pcidev->irq;
- netdev->max_mtu = NES_MAX_MTU;
- netdev->hard_header_len = ETH_HLEN;
- netdev->addr_len = ETH_ALEN;
- netdev->type = ARPHRD_ETHER;
- netdev->netdev_ops = &nes_netdev_ops;
- netdev->ethtool_ops = &nes_ethtool_ops;
- netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128);
- nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n");
-
- /* Fill in the port structure */
- nesvnic->netdev = netdev;
- nesvnic->nesdev = nesdev;
- nesvnic->msg_enable = netif_msg_init(debug, default_msg);
- nesvnic->netdev_index = nesdev->netdev_count;
- nesvnic->perfect_filter_index = nesdev->nesadapter->netdev_count;
- nesvnic->max_frame_size = netdev->mtu + netdev->hard_header_len + VLAN_HLEN;
-
- curr_qp_map = nic_qp_mapping_per_function[PCI_FUNC(nesdev->pcidev->devfn)];
- nesvnic->nic.qp_id = curr_qp_map[nesdev->netdev_count].qpid;
- nesvnic->nic_index = curr_qp_map[nesdev->netdev_count].nic_index;
- nesvnic->logical_port = curr_qp_map[nesdev->netdev_count].logical_port;
-
- /* Setup the burned in MAC address */
- u64temp = (u64)nesdev->nesadapter->mac_addr_low;
- u64temp += ((u64)nesdev->nesadapter->mac_addr_high) << 32;
- u64temp += nesvnic->nic_index;
- netdev->dev_addr[0] = (u8)(u64temp>>40);
- netdev->dev_addr[1] = (u8)(u64temp>>32);
- netdev->dev_addr[2] = (u8)(u64temp>>24);
- netdev->dev_addr[3] = (u8)(u64temp>>16);
- netdev->dev_addr[4] = (u8)(u64temp>>8);
- netdev->dev_addr[5] = (u8)u64temp;
-
- netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX;
- if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV))
- netdev->hw_features |= NETIF_F_TSO;
-
- netdev->features = netdev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX;
-
- nes_debug(NES_DBG_INIT, "nesvnic = %p, reported features = 0x%lX, QPid = %d,"
- " nic_index = %d, logical_port = %d, mac_index = %d.\n",
- nesvnic, (unsigned long)netdev->features, nesvnic->nic.qp_id,
- nesvnic->nic_index, nesvnic->logical_port, nesdev->mac_index);
-
- if (nesvnic->nesdev->nesadapter->port_count == 1 &&
- nesvnic->nesdev->nesadapter->adapter_fcn_count == 1) {
-
- nesvnic->qp_nic_index[0] = nesvnic->nic_index;
- nesvnic->qp_nic_index[1] = nesvnic->nic_index + 1;
- if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT) {
- nesvnic->qp_nic_index[2] = 0xf;
- nesvnic->qp_nic_index[3] = 0xf;
- } else {
- nesvnic->qp_nic_index[2] = nesvnic->nic_index + 2;
- nesvnic->qp_nic_index[3] = nesvnic->nic_index + 3;
- }
- } else {
- if (nesvnic->nesdev->nesadapter->port_count == 2 ||
- (nesvnic->nesdev->nesadapter->port_count == 1 &&
- nesvnic->nesdev->nesadapter->adapter_fcn_count == 2)) {
- nesvnic->qp_nic_index[0] = nesvnic->nic_index;
- nesvnic->qp_nic_index[1] = nesvnic->nic_index
- + 2;
- nesvnic->qp_nic_index[2] = 0xf;
- nesvnic->qp_nic_index[3] = 0xf;
- } else {
- nesvnic->qp_nic_index[0] = nesvnic->nic_index;
- nesvnic->qp_nic_index[1] = 0xf;
- nesvnic->qp_nic_index[2] = 0xf;
- nesvnic->qp_nic_index[3] = 0xf;
- }
- }
- nesvnic->next_qp_nic_index = 0;
-
- if (nesdev->netdev_count == 0) {
- nesvnic->rdma_enabled = 1;
- } else {
- nesvnic->rdma_enabled = 0;
- }
- nesvnic->nic_cq.cq_number = nesvnic->nic.qp_id;
- timer_setup(&nesvnic->event_timer, NULL, 0);
- spin_lock_init(&nesvnic->tx_lock);
- spin_lock_init(&nesvnic->port_ibevent_lock);
- nesdev->netdev[nesdev->netdev_count] = netdev;
-
- nes_debug(NES_DBG_INIT, "Adding nesvnic (%p) to the adapters nesvnic_list for MAC%d.\n",
- nesvnic, nesdev->mac_index);
- list_add_tail(&nesvnic->list, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]);
-
- if ((nesdev->netdev_count == 0) &&
- ((PCI_FUNC(nesdev->pcidev->devfn) == nesdev->mac_index) ||
- ((phy_type == NES_PHY_TYPE_PUMA_1G) &&
- (((PCI_FUNC(nesdev->pcidev->devfn) == 1) && (nesdev->mac_index == 2)) ||
- ((PCI_FUNC(nesdev->pcidev->devfn) == 2) && (nesdev->mac_index == 1)))))) {
- u32 u32temp;
- u32 link_mask = 0;
- u32 link_val = 0;
- u16 temp_phy_data;
- u16 phy_data = 0;
- unsigned long flags;
-
- u32temp = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
- (0x200 * (nesdev->mac_index & 1)));
- if (phy_type != NES_PHY_TYPE_PUMA_1G) {
- u32temp |= 0x00200000;
- nes_write_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
- (0x200 * (nesdev->mac_index & 1)), u32temp);
- }
-
- /* Check and set linkup here. This is for back to back */
- /* configuration where second port won't get link interrupt */
- switch (phy_type) {
- case NES_PHY_TYPE_PUMA_1G:
- if (nesdev->mac_index < 2) {
- link_mask = 0x01010000;
- link_val = 0x01010000;
- } else {
- link_mask = 0x02020000;
- link_val = 0x02020000;
- }
- break;
- case NES_PHY_TYPE_SFP_D:
- spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
- nes_read_10G_phy_reg(nesdev,
- nesdev->nesadapter->phy_index[nesdev->mac_index],
- 1, 0x9003);
- temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- nes_read_10G_phy_reg(nesdev,
- nesdev->nesadapter->phy_index[nesdev->mac_index],
- 3, 0x0021);
- nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- nes_read_10G_phy_reg(nesdev,
- nesdev->nesadapter->phy_index[nesdev->mac_index],
- 3, 0x0021);
- phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
- phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
- break;
- default:
- link_mask = 0x0f1f0000;
- link_val = 0x0f0f0000;
- break;
- }
-
- u32temp = nes_read_indexed(nesdev,
- NES_IDX_PHY_PCS_CONTROL_STATUS0 +
- (0x200 * (nesdev->mac_index & 1)));
-
- if (phy_type == NES_PHY_TYPE_SFP_D) {
- if (phy_data & 0x0004)
- nesvnic->linkup = 1;
- } else {
- if ((u32temp & link_mask) == link_val)
- nesvnic->linkup = 1;
- }
-
- /* clear the MAC interrupt status, assumes direct logical to physical mapping */
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index));
- nes_debug(NES_DBG_INIT, "Phy interrupt status = 0x%X.\n", u32temp);
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index), u32temp);
-
- nes_init_phy(nesdev);
- }
-
- nes_vlan_mode(netdev, nesdev, netdev->features);
-
- return netdev;
-}
-
-
-/**
- * nes_netdev_destroy - destroy network device structure
- */
-void nes_netdev_destroy(struct net_device *netdev)
-{
- struct nes_vnic *nesvnic = netdev_priv(netdev);
-
- /* make sure 'stop' method is called by Linux stack */
- /* nes_netdev_stop(netdev); */
-
- list_del(&nesvnic->list);
-
- if (nesvnic->of_device_registered) {
- nes_destroy_ofa_device(nesvnic->nesibdev);
- }
-
- free_netdev(netdev);
-}
-
-
-/**
- * nes_nic_cm_xmit -- CM calls this to send out pkts
- */
-int nes_nic_cm_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
- int ret;
-
- skb->dev = netdev;
- ret = dev_queue_xmit(skb);
- if (ret) {
- nes_debug(NES_DBG_CM, "Bad return code from dev_queue_xmit %d\n", ret);
- }
-
- return ret;
-}
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c
deleted file mode 100644
index e976292fc6c0..000000000000
--- a/drivers/infiniband/hw/nes/nes_utils.c
+++ /dev/null
@@ -1,913 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/slab.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/byteorder.h>
-
-#include "nes.h"
-
-static u16 nes_read16_eeprom(void __iomem *addr, u16 offset);
-
-u32 mh_detected;
-u32 mh_pauses_sent;
-
-static u32 nes_set_pau(struct nes_device *nesdev)
-{
- u32 ret = 0;
- u32 counter;
-
- nes_write_indexed(nesdev, NES_IDX_GPR2, NES_ENABLE_PAU);
- nes_write_indexed(nesdev, NES_IDX_GPR_TRIGGER, 1);
-
- for (counter = 0; counter < NES_PAU_COUNTER; counter++) {
- udelay(30);
- if (!nes_read_indexed(nesdev, NES_IDX_GPR2)) {
- printk(KERN_INFO PFX "PAU is supported.\n");
- break;
- }
- nes_write_indexed(nesdev, NES_IDX_GPR_TRIGGER, 1);
- }
- if (counter == NES_PAU_COUNTER) {
- printk(KERN_INFO PFX "PAU is not supported.\n");
- return -EPERM;
- }
- return ret;
-}
-
-/**
- * nes_read_eeprom_values -
- */
-int nes_read_eeprom_values(struct nes_device *nesdev, struct nes_adapter *nesadapter)
-{
- u32 mac_addr_low;
- u16 mac_addr_high;
- u16 eeprom_data;
- u16 eeprom_offset;
- u16 next_section_address;
- u16 sw_section_ver;
- u8 major_ver = 0;
- u8 minor_ver = 0;
-
- /* TODO: deal with EEPROM endian issues */
- if (nesadapter->firmware_eeprom_offset == 0) {
- /* Read the EEPROM Parameters */
- eeprom_data = nes_read16_eeprom(nesdev->regs, 0);
- nes_debug(NES_DBG_HW, "EEPROM Offset 0 = 0x%04X\n", eeprom_data);
- eeprom_offset = 2 + (((eeprom_data & 0x007f) << 3) <<
- ((eeprom_data & 0x0080) >> 7));
- nes_debug(NES_DBG_HW, "Firmware Offset = 0x%04X\n", eeprom_offset);
- nesadapter->firmware_eeprom_offset = eeprom_offset;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 4);
- if (eeprom_data != 0x5746) {
- nes_debug(NES_DBG_HW, "Not a valid Firmware Image = 0x%04X\n", eeprom_data);
- return -1;
- }
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- eeprom_offset += ((eeprom_data & 0x00ff) << 3) << ((eeprom_data & 0x0100) >> 8);
- nes_debug(NES_DBG_HW, "Software Offset = 0x%04X\n", eeprom_offset);
- nesadapter->software_eeprom_offset = eeprom_offset;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 4);
- if (eeprom_data != 0x5753) {
- printk("Not a valid Software Image = 0x%04X\n", eeprom_data);
- return -1;
- }
- sw_section_ver = nes_read16_eeprom(nesdev->regs, nesadapter->software_eeprom_offset + 6);
- nes_debug(NES_DBG_HW, "Software section version number = 0x%04X\n",
- sw_section_ver);
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + (((eeprom_data & 0x00ff) << 3) <<
- ((eeprom_data & 0x0100) >> 8));
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x414d) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x414d but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_offset = next_section_address;
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + (((eeprom_data & 0x00ff) << 3) <<
- ((eeprom_data & 0x0100) >> 8));
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x4f52) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x4f52 but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_offset = next_section_address;
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + ((eeprom_data & 0x00ff) << 3);
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x5746) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x5746 but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_offset = next_section_address;
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + ((eeprom_data & 0x00ff) << 3);
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x5753) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x5753 but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_offset = next_section_address;
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + ((eeprom_data & 0x00ff) << 3);
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x414d) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x414d but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_offset = next_section_address;
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset + 2);
- nes_debug(NES_DBG_HW, "EEPROM Offset %u (next section) = 0x%04X\n",
- eeprom_offset + 2, eeprom_data);
- next_section_address = eeprom_offset + ((eeprom_data & 0x00ff) << 3);
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 4);
- if (eeprom_data != 0x464e) {
- nes_debug(NES_DBG_HW, "EEPROM Changed offset should be 0x464e but was 0x%04X\n",
- eeprom_data);
- goto no_fw_rev;
- }
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 8);
- printk(PFX "Firmware version %u.%u\n", (u8)(eeprom_data>>8), (u8)eeprom_data);
- major_ver = (u8)(eeprom_data >> 8);
- minor_ver = (u8)(eeprom_data);
-
- if (nes_drv_opt & NES_DRV_OPT_DISABLE_VIRT_WQ) {
- nes_debug(NES_DBG_HW, "Virtual WQs have been disabled\n");
- } else if (((major_ver == 2) && (minor_ver > 21)) || ((major_ver > 2) && (major_ver != 255))) {
- nesadapter->virtwq = 1;
- }
- if (((major_ver == 3) && (minor_ver >= 16)) || (major_ver > 3))
- nesadapter->send_term_ok = 1;
-
- if (nes_drv_opt & NES_DRV_OPT_ENABLE_PAU) {
- if (!nes_set_pau(nesdev))
- nesadapter->allow_unaligned_fpdus = 1;
- }
-
- nesadapter->firmware_version = (((u32)(u8)(eeprom_data>>8)) << 16) +
- (u32)((u8)eeprom_data);
-
- eeprom_data = nes_read16_eeprom(nesdev->regs, next_section_address + 10);
- printk(PFX "EEPROM version %u.%u\n", (u8)(eeprom_data>>8), (u8)eeprom_data);
- nesadapter->eeprom_version = (((u32)(u8)(eeprom_data>>8)) << 16) +
- (u32)((u8)eeprom_data);
-
-no_fw_rev:
- /* eeprom is valid */
- eeprom_offset = nesadapter->software_eeprom_offset;
- eeprom_offset += 8;
- nesadapter->netdev_max = (u8)nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- mac_addr_high = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- mac_addr_low = (u32)nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- mac_addr_low <<= 16;
- mac_addr_low += (u32)nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "Base MAC Address = 0x%04X%08X\n",
- mac_addr_high, mac_addr_low);
- nes_debug(NES_DBG_HW, "MAC Address count = %u\n", nesadapter->netdev_max);
-
- nesadapter->mac_addr_low = mac_addr_low;
- nesadapter->mac_addr_high = mac_addr_high;
-
- /* Read the Phy Type array */
- eeprom_offset += 10;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->phy_type[0] = (u8)(eeprom_data >> 8);
- nesadapter->phy_type[1] = (u8)eeprom_data;
-
- /* Read the port array */
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->phy_type[2] = (u8)(eeprom_data >> 8);
- nesadapter->phy_type[3] = (u8)eeprom_data;
- /* port_count is set by soft reset reg */
- nes_debug(NES_DBG_HW, "port_count = %u, port 0 -> %u, port 1 -> %u,"
- " port 2 -> %u, port 3 -> %u\n",
- nesadapter->port_count,
- nesadapter->phy_type[0], nesadapter->phy_type[1],
- nesadapter->phy_type[2], nesadapter->phy_type[3]);
-
- /* Read PD config array */
- eeprom_offset += 10;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_size[0] = eeprom_data;
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_base[0] = eeprom_data;
- nes_debug(NES_DBG_HW, "PD0 config, size=0x%04x, base=0x%04x\n",
- nesadapter->pd_config_size[0], nesadapter->pd_config_base[0]);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_size[1] = eeprom_data;
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_base[1] = eeprom_data;
- nes_debug(NES_DBG_HW, "PD1 config, size=0x%04x, base=0x%04x\n",
- nesadapter->pd_config_size[1], nesadapter->pd_config_base[1]);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_size[2] = eeprom_data;
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_base[2] = eeprom_data;
- nes_debug(NES_DBG_HW, "PD2 config, size=0x%04x, base=0x%04x\n",
- nesadapter->pd_config_size[2], nesadapter->pd_config_base[2]);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_size[3] = eeprom_data;
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->pd_config_base[3] = eeprom_data;
- nes_debug(NES_DBG_HW, "PD3 config, size=0x%04x, base=0x%04x\n",
- nesadapter->pd_config_size[3], nesadapter->pd_config_base[3]);
-
- /* Read Rx Pool Size */
- eeprom_offset += 22; /* 46 */
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->rx_pool_size = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "rx_pool_size = 0x%08X\n", nesadapter->rx_pool_size);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->tx_pool_size = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "tx_pool_size = 0x%08X\n", nesadapter->tx_pool_size);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->rx_threshold = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "rx_threshold = 0x%08X\n", nesadapter->rx_threshold);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->tcp_timer_core_clk_divisor = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "tcp_timer_core_clk_divisor = 0x%08X\n",
- nesadapter->tcp_timer_core_clk_divisor);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->iwarp_config = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "iwarp_config = 0x%08X\n", nesadapter->iwarp_config);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->cm_config = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "cm_config = 0x%08X\n", nesadapter->cm_config);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->sws_timer_config = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "sws_timer_config = 0x%08X\n", nesadapter->sws_timer_config);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->tcp_config1 = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "tcp_config1 = 0x%08X\n", nesadapter->tcp_config1);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->wqm_wat = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "wqm_wat = 0x%08X\n", nesadapter->wqm_wat);
-
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- eeprom_offset += 2;
- nesadapter->core_clock = (((u32)eeprom_data) << 16) +
- nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nes_debug(NES_DBG_HW, "core_clock = 0x%08X\n", nesadapter->core_clock);
-
- if ((sw_section_ver) && (nesadapter->hw_rev != NE020_REV)) {
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->phy_index[0] = (eeprom_data & 0xff00)>>8;
- nesadapter->phy_index[1] = eeprom_data & 0x00ff;
- eeprom_offset += 2;
- eeprom_data = nes_read16_eeprom(nesdev->regs, eeprom_offset);
- nesadapter->phy_index[2] = (eeprom_data & 0xff00)>>8;
- nesadapter->phy_index[3] = eeprom_data & 0x00ff;
- } else {
- nesadapter->phy_index[0] = 4;
- nesadapter->phy_index[1] = 5;
- nesadapter->phy_index[2] = 6;
- nesadapter->phy_index[3] = 7;
- }
- nes_debug(NES_DBG_HW, "Phy address map = 0 > %u, 1 > %u, 2 > %u, 3 > %u\n",
- nesadapter->phy_index[0],nesadapter->phy_index[1],
- nesadapter->phy_index[2],nesadapter->phy_index[3]);
- }
-
- return 0;
-}
-
-
-/**
- * nes_read16_eeprom
- */
-static u16 nes_read16_eeprom(void __iomem *addr, u16 offset)
-{
- writel(NES_EEPROM_READ_REQUEST + (offset >> 1),
- (void __iomem *)addr + NES_EEPROM_COMMAND);
-
- do {
- } while (readl((void __iomem *)addr + NES_EEPROM_COMMAND) &
- NES_EEPROM_READ_REQUEST);
-
- return readw((void __iomem *)addr + NES_EEPROM_DATA);
-}
-
-
-/**
- * nes_write_1G_phy_reg
- */
-void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 data)
-{
- u32 u32temp;
- u32 counter;
-
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x50020000 | data | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- /* nes_debug(NES_DBG_PHY, "Phy interrupt status = 0x%X.\n", u32temp); */
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1))
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
-}
-
-
-/**
- * nes_read_1G_phy_reg
- * This routine only issues the read, the data must be read
- * separately.
- */
-void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 *data)
-{
- u32 u32temp;
- u32 counter;
-
- /* nes_debug(NES_DBG_PHY, "phy addr = %d, mac_index = %d\n",
- phy_addr, nesdev->mac_index); */
-
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x60020000 | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- /* nes_debug(NES_DBG_PHY, "Phy interrupt status = 0x%X.\n", u32temp); */
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1)) {
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
- *data = 0xffff;
- } else {
- *data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
- }
-}
-
-
-/**
- * nes_write_10G_phy_reg
- */
-void nes_write_10G_phy_reg(struct nes_device *nesdev, u16 phy_addr, u8 dev_addr, u16 phy_reg,
- u16 data)
-{
- u32 port_addr;
- u32 u32temp;
- u32 counter;
-
- port_addr = phy_addr;
-
- /* set address */
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x00020000 | (u32)phy_reg | (((u32)dev_addr) << 18) | (((u32)port_addr) << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1))
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
-
- /* set data */
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x10020000 | (u32)data | (((u32)dev_addr) << 18) | (((u32)port_addr) << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1))
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
-}
-
-
-/**
- * nes_read_10G_phy_reg
- * This routine only issues the read, the data must be read
- * separately.
- */
-void nes_read_10G_phy_reg(struct nes_device *nesdev, u8 phy_addr, u8 dev_addr, u16 phy_reg)
-{
- u32 port_addr;
- u32 u32temp;
- u32 counter;
-
- port_addr = phy_addr;
-
- /* set address */
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x00020000 | (u32)phy_reg | (((u32)dev_addr) << 18) | (((u32)port_addr) << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1))
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
-
- /* issue read */
- nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
- 0x30020000 | (((u32)dev_addr) << 18) | (((u32)port_addr) << 23));
- for (counter = 0; counter < 100 ; counter++) {
- udelay(30);
- u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS);
- if (u32temp & 1) {
- nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS, 1);
- break;
- }
- }
- if (!(u32temp & 1))
- nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
- u32temp);
-}
-
-
-/**
- * nes_get_cqp_request
- */
-struct nes_cqp_request *nes_get_cqp_request(struct nes_device *nesdev)
-{
- unsigned long flags;
- struct nes_cqp_request *cqp_request = NULL;
-
- if (!list_empty(&nesdev->cqp_avail_reqs)) {
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- if (!list_empty(&nesdev->cqp_avail_reqs)) {
- cqp_request = list_entry(nesdev->cqp_avail_reqs.next,
- struct nes_cqp_request, list);
- list_del_init(&cqp_request->list);
- }
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- }
- if (cqp_request == NULL) {
- cqp_request = kzalloc(sizeof(struct nes_cqp_request), GFP_ATOMIC);
- if (cqp_request) {
- cqp_request->dynamic = 1;
- INIT_LIST_HEAD(&cqp_request->list);
- }
- }
-
- if (cqp_request) {
- init_waitqueue_head(&cqp_request->waitq);
- cqp_request->waiting = 0;
- cqp_request->request_done = 0;
- cqp_request->callback = 0;
- nes_debug(NES_DBG_CQP, "Got cqp request %p from the available list \n",
- cqp_request);
- }
-
- return cqp_request;
-}
-
-void nes_free_cqp_request(struct nes_device *nesdev,
- struct nes_cqp_request *cqp_request)
-{
- unsigned long flags;
-
- nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) freed.\n",
- cqp_request,
- le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX]) & 0x3f);
-
- if (cqp_request->dynamic) {
- kfree(cqp_request);
- } else {
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
- }
-}
-
-void nes_put_cqp_request(struct nes_device *nesdev,
- struct nes_cqp_request *cqp_request)
-{
- if (atomic_dec_and_test(&cqp_request->refcount))
- nes_free_cqp_request(nesdev, cqp_request);
-}
-
-
-/**
- * nes_post_cqp_request
- */
-void nes_post_cqp_request(struct nes_device *nesdev,
- struct nes_cqp_request *cqp_request)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- unsigned long flags;
- u32 cqp_head;
- u64 u64temp;
- u32 opcode;
- int ctx_index = NES_CQP_WQE_COMP_CTX_LOW_IDX;
-
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
-
- if (((((nesdev->cqp.sq_tail+(nesdev->cqp.sq_size*2))-nesdev->cqp.sq_head) &
- (nesdev->cqp.sq_size - 1)) != 1)
- && (list_empty(&nesdev->cqp_pending_reqs))) {
- cqp_head = nesdev->cqp.sq_head++;
- nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
- cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
- memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
- opcode = le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX]);
- if ((opcode & NES_CQP_OPCODE_MASK) == NES_CQP_DOWNLOAD_SEGMENT)
- ctx_index = NES_CQP_WQE_DL_COMP_CTX_LOW_IDX;
- barrier();
- u64temp = (unsigned long)cqp_request;
- set_wqe_64bit_value(cqp_wqe->wqe_words, ctx_index, u64temp);
- nes_debug(NES_DBG_CQP, "CQP request (opcode 0x%02X), line 1 = 0x%08X put on CQPs SQ,"
- " request = %p, cqp_head = %u, cqp_tail = %u, cqp_size = %u,"
- " waiting = %d, refcount = %d.\n",
- opcode & NES_CQP_OPCODE_MASK,
- le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX]), cqp_request,
- nesdev->cqp.sq_head, nesdev->cqp.sq_tail, nesdev->cqp.sq_size,
- cqp_request->waiting, atomic_read(&cqp_request->refcount));
-
- barrier();
-
- /* Ring doorbell (1 WQEs) */
- nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
-
- barrier();
- } else {
- nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X), line 1 = 0x%08X"
- " put on the pending queue.\n",
- cqp_request,
- le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f,
- le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_ID_IDX]));
- list_add_tail(&cqp_request->list, &nesdev->cqp_pending_reqs);
- }
-
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-
- return;
-}
-
-/**
- * nes_arp_table
- */
-int nes_arp_table(struct nes_device *nesdev, u32 ip_addr, u8 *mac_addr, u32 action)
-{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- int arp_index;
- int err = 0;
- __be32 tmp_addr;
-
- for (arp_index = 0; (u32) arp_index < nesadapter->arp_table_size; arp_index++) {
- if (nesadapter->arp_table[arp_index].ip_addr == ip_addr)
- break;
- }
-
- if (action == NES_ARP_ADD) {
- if (arp_index != nesadapter->arp_table_size) {
- return -1;
- }
-
- arp_index = 0;
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_arps,
- nesadapter->arp_table_size, (u32 *)&arp_index, &nesadapter->next_arp_index, NES_RESOURCE_ARP);
- if (err) {
- nes_debug(NES_DBG_NETDEV, "nes_alloc_resource returned error = %u\n", err);
- return err;
- }
- nes_debug(NES_DBG_NETDEV, "ADD, arp_index=%d\n", arp_index);
-
- nesadapter->arp_table[arp_index].ip_addr = ip_addr;
- memcpy(nesadapter->arp_table[arp_index].mac_addr, mac_addr, ETH_ALEN);
- return arp_index;
- }
-
- /* DELETE or RESOLVE */
- if (arp_index == nesadapter->arp_table_size) {
- tmp_addr = cpu_to_be32(ip_addr);
- nes_debug(NES_DBG_NETDEV, "MAC for %pI4 not in ARP table - cannot %s\n",
- &tmp_addr, action == NES_ARP_RESOLVE ? "resolve" : "delete");
- return -1;
- }
-
- if (action == NES_ARP_RESOLVE) {
- nes_debug(NES_DBG_NETDEV, "RESOLVE, arp_index=%d\n", arp_index);
- return arp_index;
- }
-
- if (action == NES_ARP_DELETE) {
- nes_debug(NES_DBG_NETDEV, "DELETE, arp_index=%d\n", arp_index);
- nesadapter->arp_table[arp_index].ip_addr = 0;
- eth_zero_addr(nesadapter->arp_table[arp_index].mac_addr);
- nes_free_resource(nesadapter, nesadapter->allocated_arps, arp_index);
- return arp_index;
- }
-
- return -1;
-}
-
-
-/**
- * nes_mh_fix
- */
-void nes_mh_fix(struct timer_list *t)
-{
- struct nes_adapter *nesadapter = from_timer(nesadapter, t, mh_timer);
- struct nes_device *nesdev = nesadapter->nesdev;
- unsigned long flags;
- struct nes_vnic *nesvnic;
- u32 used_chunks_tx;
- u32 temp_used_chunks_tx;
- u32 temp_last_used_chunks_tx;
- u32 used_chunks_mask;
- u32 mac_tx_frames_low;
- u32 mac_tx_frames_high;
- u32 mac_tx_pauses;
- u32 reset_value;
- u32 tx_control;
- u32 tx_config;
- u32 tx_pause_quanta;
- u32 rx_control;
- u32 rx_config;
- u32 mac_exact_match;
- u32 mpp_debug;
- u32 i=0;
- u32 chunks_tx_progress = 0;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- if ((nesadapter->mac_sw_state[0] != NES_MAC_SW_IDLE) || (nesadapter->mac_link_down[0])) {
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- goto no_mh_work;
- }
- nesadapter->mac_sw_state[0] = NES_MAC_SW_MH;
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- do {
- mac_tx_frames_low = nes_read_indexed(nesdev, NES_IDX_MAC_TX_FRAMES_LOW);
- mac_tx_frames_high = nes_read_indexed(nesdev, NES_IDX_MAC_TX_FRAMES_HIGH);
- mac_tx_pauses = nes_read_indexed(nesdev, NES_IDX_MAC_TX_PAUSE_FRAMES);
- used_chunks_tx = nes_read_indexed(nesdev, NES_IDX_USED_CHUNKS_TX);
- nesdev->mac_pause_frames_sent += mac_tx_pauses;
- used_chunks_mask = 0;
- temp_used_chunks_tx = used_chunks_tx;
- temp_last_used_chunks_tx = nesdev->last_used_chunks_tx;
-
- if (nesdev->netdev[0]) {
- nesvnic = netdev_priv(nesdev->netdev[0]);
- } else {
- break;
- }
-
- for (i=0; i<4; i++) {
- used_chunks_mask <<= 8;
- if (nesvnic->qp_nic_index[i] != 0xff) {
- used_chunks_mask |= 0xff;
- if ((temp_used_chunks_tx&0xff)<(temp_last_used_chunks_tx&0xff)) {
- chunks_tx_progress = 1;
- }
- }
- temp_used_chunks_tx >>= 8;
- temp_last_used_chunks_tx >>= 8;
- }
- if ((mac_tx_frames_low) || (mac_tx_frames_high) ||
- (!(used_chunks_tx&used_chunks_mask)) ||
- (!(nesdev->last_used_chunks_tx&used_chunks_mask)) ||
- (chunks_tx_progress) ) {
- nesdev->last_used_chunks_tx = used_chunks_tx;
- break;
- }
- nesdev->last_used_chunks_tx = used_chunks_tx;
- barrier();
-
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONTROL, 0x00000005);
- mh_pauses_sent++;
- mac_tx_pauses = nes_read_indexed(nesdev, NES_IDX_MAC_TX_PAUSE_FRAMES);
- if (mac_tx_pauses) {
- nesdev->mac_pause_frames_sent += mac_tx_pauses;
- break;
- }
-
- tx_control = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONTROL);
- tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG);
- tx_pause_quanta = nes_read_indexed(nesdev, NES_IDX_MAC_TX_PAUSE_QUANTA);
- rx_control = nes_read_indexed(nesdev, NES_IDX_MAC_RX_CONTROL);
- rx_config = nes_read_indexed(nesdev, NES_IDX_MAC_RX_CONFIG);
- mac_exact_match = nes_read_indexed(nesdev, NES_IDX_MAC_EXACT_MATCH_BOTTOM);
- mpp_debug = nes_read_indexed(nesdev, NES_IDX_MPP_DEBUG);
-
- /* one last ditch effort to avoid a false positive */
- mac_tx_pauses = nes_read_indexed(nesdev, NES_IDX_MAC_TX_PAUSE_FRAMES);
- if (mac_tx_pauses) {
- nesdev->last_mac_tx_pauses = nesdev->mac_pause_frames_sent;
- nes_debug(NES_DBG_HW, "failsafe caught slow outbound pause\n");
- break;
- }
- mh_detected++;
-
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONTROL, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, 0x00000000);
- reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
-
- nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value | 0x0000001d);
-
- while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
- & 0x00000040) != 0x00000040) && (i++ < 5000)) {
- /* mdelay(1); */
- }
-
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, 0x00000008);
- nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0);
-
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x000bdef7);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE0, 0x9ce73000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE0, 0x0ff00000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET0, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS0, 0x00000000);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL0, 0x00000000);
- if (nesadapter->OneG_Mode) {
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0182222);
- } else {
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0042222);
- }
- nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_STATUS0);
- nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000ff);
-
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONTROL, tx_control);
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config);
- nes_write_indexed(nesdev, NES_IDX_MAC_TX_PAUSE_QUANTA, tx_pause_quanta);
- nes_write_indexed(nesdev, NES_IDX_MAC_RX_CONTROL, rx_control);
- nes_write_indexed(nesdev, NES_IDX_MAC_RX_CONFIG, rx_config);
- nes_write_indexed(nesdev, NES_IDX_MAC_EXACT_MATCH_BOTTOM, mac_exact_match);
- nes_write_indexed(nesdev, NES_IDX_MPP_DEBUG, mpp_debug);
-
- } while (0);
-
- nesadapter->mac_sw_state[0] = NES_MAC_SW_IDLE;
-no_mh_work:
- nesdev->nesadapter->mh_timer.expires = jiffies + (HZ/5);
- add_timer(&nesdev->nesadapter->mh_timer);
-}
-
-/**
- * nes_clc
- */
-void nes_clc(struct timer_list *t)
-{
- struct nes_adapter *nesadapter = from_timer(nesadapter, t, lc_timer);
- unsigned long flags;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
- nesadapter->link_interrupt_count[0] = 0;
- nesadapter->link_interrupt_count[1] = 0;
- nesadapter->link_interrupt_count[2] = 0;
- nesadapter->link_interrupt_count[3] = 0;
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
-
- nesadapter->lc_timer.expires = jiffies + 3600 * HZ; /* 1 hour */
- add_timer(&nesadapter->lc_timer);
-}
-
-
-/**
- * nes_dump_mem
- */
-void nes_dump_mem(unsigned int dump_debug_level, void *addr, int length)
-{
- if (!(nes_debug_level & dump_debug_level)) {
- return;
- }
-
- if (length > 0x100) {
- nes_debug(dump_debug_level, "Length truncated from %x to %x\n", length, 0x100);
- length = 0x100;
- }
- nes_debug(dump_debug_level, "Address=0x%p, length=0x%x (%d)\n", addr, length, length);
-
- print_hex_dump(KERN_ERR, PFX, DUMP_PREFIX_NONE, 16, 1, addr, length, true);
-}
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
deleted file mode 100644
index 0420203820f6..000000000000
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ /dev/null
@@ -1,3721 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/random.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-
-#include <rdma/ib_verbs.h>
-#include <rdma/iw_cm.h>
-#include <rdma/ib_user_verbs.h>
-#include <rdma/uverbs_ioctl.h>
-
-#include "nes.h"
-
-#include <rdma/ib_umem.h>
-
-atomic_t mod_qp_timouts;
-atomic_t qps_created;
-atomic_t sw_qps_destroyed;
-
-static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
-static int nes_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
-
-/**
- * nes_alloc_mw
- */
-static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd, enum ib_mw_type type,
- struct ib_udata *udata)
-{
- struct nes_pd *nespd = to_nespd(ibpd);
- struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_cqp_request *cqp_request;
- struct nes_mr *nesmr;
- struct ib_mw *ibmw;
- struct nes_hw_cqp_wqe *cqp_wqe;
- int ret;
- u32 stag;
- u32 stag_index = 0;
- u32 next_stag_index = 0;
- u32 driver_key = 0;
- u8 stag_key = 0;
-
- if (type != IB_MW_TYPE_1)
- return ERR_PTR(-EINVAL);
-
- get_random_bytes(&next_stag_index, sizeof(next_stag_index));
- stag_key = (u8)next_stag_index;
-
- driver_key = 0;
-
- next_stag_index >>= 8;
- next_stag_index %= nesadapter->max_mr;
-
- ret = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
- nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_MW);
- if (ret) {
- return ERR_PTR(ret);
- }
-
- nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL);
- if (!nesmr) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
-
- stag = stag_index << 8;
- stag |= driver_key;
- stag += (u32)stag_key;
-
- nes_debug(NES_DBG_MR, "Registering STag 0x%08X, index = 0x%08X\n",
- stag, stag_index);
-
- /* Register the region with the adapter */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- kfree(nesmr);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
-
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] =
- cpu_to_le32( NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_RIGHTS_REMOTE_READ |
- NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_VA_TO |
- NES_CQP_STAG_REM_ACC_EN);
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX, (nespd->pd_id & 0x00007fff));
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag);
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- stag, ret, cqp_request->major_code, cqp_request->minor_code);
- if ((!ret) || (cqp_request->major_code)) {
- nes_put_cqp_request(nesdev, cqp_request);
- kfree(nesmr);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- if (!ret) {
- return ERR_PTR(-ETIME);
- } else {
- return ERR_PTR(-ENOMEM);
- }
- }
- nes_put_cqp_request(nesdev, cqp_request);
-
- nesmr->ibmw.rkey = stag;
- nesmr->mode = IWNES_MEMREG_TYPE_MW;
- ibmw = &nesmr->ibmw;
- nesmr->pbl_4k = 0;
- nesmr->pbls_used = 0;
-
- return ibmw;
-}
-
-
-/**
- * nes_dealloc_mw
- */
-static int nes_dealloc_mw(struct ib_mw *ibmw)
-{
- struct nes_mr *nesmr = to_nesmw(ibmw);
- struct nes_vnic *nesvnic = to_nesvnic(ibmw->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- int err = 0;
- int ret;
-
- /* Deallocate the window with the adapter */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, NES_CQP_DEALLOCATE_STAG);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ibmw->rkey);
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X to complete.\n",
- ibmw->rkey);
- ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- ret, cqp_request->major_code, cqp_request->minor_code);
- if (!ret)
- err = -ETIME;
- else if (cqp_request->major_code)
- err = -EIO;
-
- nes_put_cqp_request(nesdev, cqp_request);
-
- nes_free_resource(nesadapter, nesadapter->allocated_mrs,
- (ibmw->rkey & 0x0fffff00) >> 8);
- kfree(nesmr);
-
- return err;
-}
-
-
-/*
- * nes_alloc_fast_mr
- */
-static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
- u32 stag, u32 page_count)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- unsigned long flags;
- int ret;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 opcode = 0;
- u16 major_code;
- u64 region_length = page_count * PAGE_SIZE;
-
-
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- nes_debug(NES_DBG_MR, "alloc_fast_reg_mr: page_count = %d, "
- "region_length = %llu\n",
- page_count, region_length);
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- if (nesadapter->free_4kpbl > 0) {
- nesadapter->free_4kpbl--;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- } else {
- /* No 4kpbl's available: */
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- nes_debug(NES_DBG_MR, "Out of Pbls\n");
- nes_free_cqp_request(nesdev, cqp_request);
- return -ENOMEM;
- }
-
- opcode = NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_MR |
- NES_CQP_STAG_PBL_BLK_SIZE | NES_CQP_STAG_VA_TO |
- NES_CQP_STAG_REM_ACC_EN;
- /*
- * The current OFED API does not support the zero based TO option.
- * If added then need to changed the NES_CQP_STAG_VA* option. Also,
- * the API does not support that ability to have the MR set for local
- * access only when created and not allow the SQ op to override. Given
- * this the remote enable must be set here.
- */
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, 1);
-
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] =
- cpu_to_le32((u32)(region_length >> 8) & 0xff000000);
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |=
- cpu_to_le32(nespd->pd_id & 0x00007fff);
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag);
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, 0);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, 0);
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, 0);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (page_count * 8));
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE);
- barrier();
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- ret = wait_event_timeout(cqp_request->waitq,
- (0 != cqp_request->request_done),
- NES_EVENT_TIMEOUT);
-
- nes_debug(NES_DBG_MR, "Allocate STag 0x%08X completed, "
- "wait_event_timeout ret = %u, CQP Major:Minor codes = "
- "0x%04X:0x%04X.\n", stag, ret, cqp_request->major_code,
- cqp_request->minor_code);
- major_code = cqp_request->major_code;
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (!ret || major_code) {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_4kpbl++;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- }
-
- if (!ret)
- return -ETIME;
- else if (major_code)
- return -EIO;
- return 0;
-}
-
-/*
- * nes_alloc_mr
- */
-static struct ib_mr *nes_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type,
- u32 max_num_sg, struct ib_udata *udata)
-{
- struct nes_pd *nespd = to_nespd(ibpd);
- struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- u32 next_stag_index;
- u8 stag_key = 0;
- u32 driver_key = 0;
- int err = 0;
- u32 stag_index = 0;
- struct nes_mr *nesmr;
- u32 stag;
- int ret;
- struct ib_mr *ibmr;
-
- if (mr_type != IB_MR_TYPE_MEM_REG)
- return ERR_PTR(-EINVAL);
-
- if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))
- return ERR_PTR(-E2BIG);
-
-/*
- * Note: Set to always use a fixed length single page entry PBL. This is to allow
- * for the fast_reg_mr operation to always know the size of the PBL.
- */
- if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))
- return ERR_PTR(-E2BIG);
-
- get_random_bytes(&next_stag_index, sizeof(next_stag_index));
- stag_key = (u8)next_stag_index;
- next_stag_index >>= 8;
- next_stag_index %= nesadapter->max_mr;
-
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
- nesadapter->max_mr, &stag_index,
- &next_stag_index, NES_RESOURCE_FAST_MR);
- if (err)
- return ERR_PTR(err);
-
- nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL);
- if (!nesmr) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
-
- stag = stag_index << 8;
- stag |= driver_key;
- stag += (u32)stag_key;
-
- nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n",
- stag, stag_index);
-
- ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_num_sg);
-
- if (ret == 0) {
- nesmr->ibmr.rkey = stag;
- nesmr->ibmr.lkey = stag;
- nesmr->mode = IWNES_MEMREG_TYPE_FMEM;
- ibmr = &nesmr->ibmr;
- } else {
- kfree(nesmr);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
-
- nesmr->pages = pci_alloc_consistent(nesdev->pcidev,
- max_num_sg * sizeof(u64),
- &nesmr->paddr);
- if (!nesmr->paddr)
- goto err;
-
- nesmr->max_pages = max_num_sg;
-
- return ibmr;
-
-err:
- nes_dereg_mr(ibmr, udata);
-
- return ERR_PTR(-ENOMEM);
-}
-
-static int nes_set_page(struct ib_mr *ibmr, u64 addr)
-{
- struct nes_mr *nesmr = to_nesmr(ibmr);
-
- if (unlikely(nesmr->npages == nesmr->max_pages))
- return -ENOMEM;
-
- nesmr->pages[nesmr->npages++] = cpu_to_le64(addr);
-
- return 0;
-}
-
-static int nes_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
- int sg_nents, unsigned int *sg_offset)
-{
- struct nes_mr *nesmr = to_nesmr(ibmr);
-
- nesmr->npages = 0;
-
- return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, nes_set_page);
-}
-
-/**
- * nes_query_device
- */
-static int nes_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
- struct ib_udata *uhw)
-{
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_ib_device *nesibdev = nesvnic->nesibdev;
-
- if (uhw->inlen || uhw->outlen)
- return -EINVAL;
-
- memset(props, 0, sizeof(*props));
- memcpy(&props->sys_image_guid, nesvnic->netdev->dev_addr, 6);
-
- props->fw_ver = nesdev->nesadapter->firmware_version;
- props->device_cap_flags = nesdev->nesadapter->device_cap_flags;
- props->vendor_id = nesdev->nesadapter->vendor_id;
- props->vendor_part_id = nesdev->nesadapter->vendor_part_id;
- props->hw_ver = nesdev->nesadapter->hw_rev;
- props->max_mr_size = 0x80000000;
- props->max_qp = nesibdev->max_qp;
- props->max_qp_wr = nesdev->nesadapter->max_qp_wr - 2;
- props->max_send_sge = nesdev->nesadapter->max_sge;
- props->max_recv_sge = nesdev->nesadapter->max_sge;
- props->max_cq = nesibdev->max_cq;
- props->max_cqe = nesdev->nesadapter->max_cqe;
- props->max_mr = nesibdev->max_mr;
- props->max_mw = nesibdev->max_mr;
- props->max_pd = nesibdev->max_pd;
- props->max_sge_rd = 1;
- switch (nesdev->nesadapter->max_irrq_wr) {
- case 0:
- props->max_qp_rd_atom = 2;
- break;
- case 1:
- props->max_qp_rd_atom = 8;
- break;
- case 2:
- props->max_qp_rd_atom = 32;
- break;
- case 3:
- props->max_qp_rd_atom = 64;
- break;
- default:
- props->max_qp_rd_atom = 0;
- }
- props->max_qp_init_rd_atom = props->max_qp_rd_atom;
- props->atomic_cap = IB_ATOMIC_NONE;
- props->max_map_per_fmr = 1;
-
- return 0;
-}
-
-
-/**
- * nes_query_port
- */
-static int nes_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props)
-{
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
- struct net_device *netdev = nesvnic->netdev;
-
- /* props being zeroed by the caller, avoid zeroing it here */
-
- props->max_mtu = IB_MTU_4096;
- props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
-
- props->lid = 1;
- if (netif_queue_stopped(netdev))
- props->state = IB_PORT_DOWN;
- else if (nesvnic->linkup)
- props->state = IB_PORT_ACTIVE;
- else
- props->state = IB_PORT_DOWN;
- props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP |
- IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
- props->gid_tbl_len = 1;
- props->pkey_tbl_len = 1;
- props->active_width = IB_WIDTH_4X;
- props->active_speed = IB_SPEED_SDR;
- props->max_msg_sz = 0x80000000;
-
- return 0;
-}
-
-/**
- * nes_query_pkey
- */
-static int nes_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
-{
- *pkey = 0;
- return 0;
-}
-
-
-/**
- * nes_query_gid
- */
-static int nes_query_gid(struct ib_device *ibdev, u8 port,
- int index, union ib_gid *gid)
-{
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
-
- memset(&(gid->raw[0]), 0, sizeof(gid->raw));
- memcpy(&(gid->raw[0]), nesvnic->netdev->dev_addr, 6);
-
- return 0;
-}
-
-
-/**
- * nes_alloc_ucontext - Allocate the user context data structure. This keeps track
- * of all objects associated with a particular user-mode client.
- */
-static int nes_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata)
-{
- struct ib_device *ibdev = uctx->device;
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_alloc_ucontext_req req;
- struct nes_alloc_ucontext_resp uresp = {};
- struct nes_ucontext *nes_ucontext = to_nesucontext(uctx);
- struct nes_ib_device *nesibdev = nesvnic->nesibdev;
-
-
- if (ib_copy_from_udata(&req, udata, sizeof(struct nes_alloc_ucontext_req))) {
- printk(KERN_ERR PFX "Invalid structure size on allocate user context.\n");
- return -EINVAL;
- }
-
- if (req.userspace_ver != NES_ABI_USERSPACE_VER) {
- printk(KERN_ERR PFX "Invalid userspace driver version detected. Detected version %d, should be %d\n",
- req.userspace_ver, NES_ABI_USERSPACE_VER);
- return -EINVAL;
- }
-
-
- uresp.max_qps = nesibdev->max_qp;
- uresp.max_pds = nesibdev->max_pd;
- uresp.wq_size = nesdev->nesadapter->max_qp_wr * 2;
- uresp.virtwq = nesadapter->virtwq;
- uresp.kernel_ver = NES_ABI_KERNEL_VER;
-
- nes_ucontext->nesdev = nesdev;
- nes_ucontext->mmap_wq_offset = uresp.max_pds;
- nes_ucontext->mmap_cq_offset = nes_ucontext->mmap_wq_offset +
- ((sizeof(struct nes_hw_qp_wqe) * uresp.max_qps * 2) + PAGE_SIZE-1) /
- PAGE_SIZE;
-
-
- if (ib_copy_to_udata(udata, &uresp, sizeof(uresp)))
- return -EFAULT;
-
- INIT_LIST_HEAD(&nes_ucontext->cq_reg_mem_list);
- INIT_LIST_HEAD(&nes_ucontext->qp_reg_mem_list);
- return 0;
-}
-
-/**
- * nes_dealloc_ucontext
- */
-static void nes_dealloc_ucontext(struct ib_ucontext *context)
-{
- return;
-}
-
-/**
- * nes_mmap
- */
-static int nes_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
-{
- unsigned long index;
- struct nes_vnic *nesvnic = to_nesvnic(context->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- /* struct nes_adapter *nesadapter = nesdev->nesadapter; */
- struct nes_ucontext *nes_ucontext;
- struct nes_qp *nesqp;
-
- nes_ucontext = to_nesucontext(context);
-
-
- if (vma->vm_pgoff >= nes_ucontext->mmap_wq_offset) {
- index = (vma->vm_pgoff - nes_ucontext->mmap_wq_offset) * PAGE_SIZE;
- index /= ((sizeof(struct nes_hw_qp_wqe) * nesdev->nesadapter->max_qp_wr * 2) +
- PAGE_SIZE-1) & (~(PAGE_SIZE-1));
- if (!test_bit(index, nes_ucontext->allocated_wqs)) {
- nes_debug(NES_DBG_MMAP, "wq %lu not allocated\n", index);
- return -EFAULT;
- }
- nesqp = nes_ucontext->mmap_nesqp[index];
- if (nesqp == NULL) {
- nes_debug(NES_DBG_MMAP, "wq %lu has a NULL QP base.\n", index);
- return -EFAULT;
- }
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(nesqp->hwqp.sq_vbase) >> PAGE_SHIFT,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot)) {
- nes_debug(NES_DBG_MMAP, "remap_pfn_range failed.\n");
- return -EAGAIN;
- }
- vma->vm_private_data = nesqp;
- return 0;
- } else {
- index = vma->vm_pgoff;
- if (!test_bit(index, nes_ucontext->allocated_doorbells))
- return -EFAULT;
-
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (io_remap_pfn_range(vma, vma->vm_start,
- (nesdev->doorbell_start +
- ((nes_ucontext->mmap_db_index[index] - nesdev->base_doorbell_index) * 4096))
- >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot))
- return -EAGAIN;
- vma->vm_private_data = nes_ucontext;
- return 0;
- }
-
- return -ENOSYS;
-}
-
-
-/**
- * nes_alloc_pd
- */
-static int nes_alloc_pd(struct ib_pd *pd, struct ib_udata *udata)
-{
- struct ib_device *ibdev = pd->device;
- struct nes_pd *nespd = to_nespd(pd);
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_alloc_pd_resp uresp;
- u32 pd_num = 0;
- int err;
- struct nes_ucontext *nesucontext = rdma_udata_to_drv_context(
- udata, struct nes_ucontext, ibucontext);
-
- nes_debug(
- NES_DBG_PD,
- "nesvnic=%p, netdev=%p %s, ibdev=%p, context=%p, netdev refcnt=%u\n",
- nesvnic, nesdev->netdev[0], nesdev->netdev[0]->name, ibdev,
- &nesucontext->ibucontext, netdev_refcnt_read(nesvnic->netdev));
-
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_pds,
- nesadapter->max_pd, &pd_num, &nesadapter->next_pd, NES_RESOURCE_PD);
- if (err)
- return err;
-
- nes_debug(NES_DBG_PD, "Allocating PD (%p) for ib device %s\n",
- nespd, dev_name(&nesvnic->nesibdev->ibdev.dev));
-
- nespd->pd_id = (pd_num << (PAGE_SHIFT-12)) + nesadapter->base_pd;
-
- if (udata) {
- nespd->mmap_db_index = find_next_zero_bit(nesucontext->allocated_doorbells,
- NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db);
- nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n",
- nespd->mmap_db_index, nespd->pd_id);
- if (nespd->mmap_db_index >= NES_MAX_USER_DB_REGIONS) {
- nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n");
- nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num);
- return -ENOMEM;
- }
-
- uresp.pd_id = nespd->pd_id;
- uresp.mmap_db_index = nespd->mmap_db_index;
- if (ib_copy_to_udata(udata, &uresp, sizeof (struct nes_alloc_pd_resp))) {
- nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num);
- return -EFAULT;
- }
-
- set_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells);
- nesucontext->mmap_db_index[nespd->mmap_db_index] = nespd->pd_id;
- nesucontext->first_free_db = nespd->mmap_db_index + 1;
- }
-
- nes_debug(NES_DBG_PD, "PD%u structure located @%p.\n", nespd->pd_id, nespd);
- return 0;
-}
-
-
-/**
- * nes_dealloc_pd
- */
-static void nes_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
-{
- struct nes_ucontext *nesucontext;
- struct nes_pd *nespd = to_nespd(ibpd);
- struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
-
- if (udata) {
- nesucontext =
- rdma_udata_to_drv_context(
- udata,
- struct nes_ucontext,
- ibucontext);
- nes_debug(NES_DBG_PD, "Clearing bit %u from allocated doorbells\n",
- nespd->mmap_db_index);
- clear_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells);
- nesucontext->mmap_db_index[nespd->mmap_db_index] = 0;
- if (nesucontext->first_free_db > nespd->mmap_db_index) {
- nesucontext->first_free_db = nespd->mmap_db_index;
- }
- }
-
- nes_debug(NES_DBG_PD, "Deallocating PD%u structure located @%p.\n",
- nespd->pd_id, nespd);
- nes_free_resource(nesadapter, nesadapter->allocated_pds,
- (nespd->pd_id-nesadapter->base_pd)>>(PAGE_SHIFT-12));
-}
-
-
-/**
- * nes_get_encoded_size
- */
-static inline u8 nes_get_encoded_size(int *size)
-{
- u8 encoded_size = 0;
- if (*size <= 32) {
- *size = 32;
- encoded_size = 1;
- } else if (*size <= 128) {
- *size = 128;
- encoded_size = 2;
- } else if (*size <= 512) {
- *size = 512;
- encoded_size = 3;
- }
- return (encoded_size);
-}
-
-
-
-/**
- * nes_setup_virt_qp
- */
-static int nes_setup_virt_qp(struct nes_qp *nesqp, struct nes_pbl *nespbl,
- struct nes_vnic *nesvnic, int sq_size, int rq_size)
-{
- unsigned long flags;
- void *mem;
- __le64 *pbl = NULL;
- __le64 *tpbl;
- __le64 *pblbuffer;
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- u32 pbl_entries;
- u8 rq_pbl_entries;
- u8 sq_pbl_entries;
-
- pbl_entries = nespbl->pbl_size >> 3;
- nes_debug(NES_DBG_QP, "Userspace PBL, pbl_size=%u, pbl_entries = %d pbl_vbase=%p, pbl_pbase=%lx\n",
- nespbl->pbl_size, pbl_entries,
- (void *)nespbl->pbl_vbase,
- (unsigned long) nespbl->pbl_pbase);
- pbl = (__le64 *) nespbl->pbl_vbase; /* points to first pbl entry */
- /* now lets set the sq_vbase as well as rq_vbase addrs we will assign */
- /* the first pbl to be fro the rq_vbase... */
- rq_pbl_entries = (rq_size * sizeof(struct nes_hw_qp_wqe)) >> 12;
- sq_pbl_entries = (sq_size * sizeof(struct nes_hw_qp_wqe)) >> 12;
- nesqp->hwqp.sq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32);
- if (!nespbl->page) {
- nes_debug(NES_DBG_QP, "QP nespbl->page is NULL \n");
- kfree(nespbl);
- return -ENOMEM;
- }
-
- nesqp->hwqp.sq_vbase = kmap(nespbl->page);
- nesqp->page = nespbl->page;
- if (!nesqp->hwqp.sq_vbase) {
- nes_debug(NES_DBG_QP, "QP sq_vbase kmap failed\n");
- kfree(nespbl);
- return -ENOMEM;
- }
-
- /* Now to get to sq.. we need to calculate how many */
- /* PBL entries were used by the rq.. */
- pbl += sq_pbl_entries;
- nesqp->hwqp.rq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32);
- /* nesqp->hwqp.rq_vbase = bus_to_virt(*pbl); */
- /*nesqp->hwqp.rq_vbase = phys_to_virt(*pbl); */
-
- nes_debug(NES_DBG_QP, "QP sq_vbase= %p sq_pbase=%lx rq_vbase=%p rq_pbase=%lx\n",
- nesqp->hwqp.sq_vbase, (unsigned long) nesqp->hwqp.sq_pbase,
- nesqp->hwqp.rq_vbase, (unsigned long) nesqp->hwqp.rq_pbase);
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- if (!nesadapter->free_256pbl) {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase,
- nespbl->pbl_pbase);
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- kunmap(nesqp->page);
- kfree(nespbl);
- return -ENOMEM;
- }
- nesadapter->free_256pbl--;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
-
- nesqp->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 256, &nesqp->pbl_pbase);
- pblbuffer = nesqp->pbl_vbase;
- if (!nesqp->pbl_vbase) {
- /* memory allocated during nes_reg_user_mr() */
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase,
- nespbl->pbl_pbase);
- kfree(nespbl);
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_256pbl++;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- kunmap(nesqp->page);
- return -ENOMEM;
- }
- memset(nesqp->pbl_vbase, 0, 256);
- /* fill in the page address in the pbl buffer.. */
- tpbl = pblbuffer + 16;
- pbl = (__le64 *)nespbl->pbl_vbase;
- while (sq_pbl_entries--)
- *tpbl++ = *pbl++;
- tpbl = pblbuffer;
- while (rq_pbl_entries--)
- *tpbl++ = *pbl++;
-
- /* done with memory allocated during nes_reg_user_mr() */
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase,
- nespbl->pbl_pbase);
- kfree(nespbl);
-
- nesqp->qp_mem_size =
- max((u32)sizeof(struct nes_qp_context), ((u32)256)) + 256; /* this is Q2 */
- /* Round up to a multiple of a page */
- nesqp->qp_mem_size += PAGE_SIZE - 1;
- nesqp->qp_mem_size &= ~(PAGE_SIZE - 1);
-
- mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size,
- &nesqp->hwqp.q2_pbase);
-
- if (!mem) {
- pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
- nesqp->pbl_vbase = NULL;
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_256pbl++;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- kunmap(nesqp->page);
- return -ENOMEM;
- }
- nesqp->sq_kmapped = 1;
- nesqp->hwqp.q2_vbase = mem;
- mem += 256;
- memset(nesqp->hwqp.q2_vbase, 0, 256);
- nesqp->nesqp_context = mem;
- memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context));
- nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256;
-
- return 0;
-}
-
-
-/**
- * nes_setup_mmap_qp
- */
-static int nes_setup_mmap_qp(struct nes_qp *nesqp, struct nes_vnic *nesvnic,
- int sq_size, int rq_size)
-{
- void *mem;
- struct nes_device *nesdev = nesvnic->nesdev;
-
- nesqp->qp_mem_size = (sizeof(struct nes_hw_qp_wqe) * sq_size) +
- (sizeof(struct nes_hw_qp_wqe) * rq_size) +
- max((u32)sizeof(struct nes_qp_context), ((u32)256)) +
- 256; /* this is Q2 */
- /* Round up to a multiple of a page */
- nesqp->qp_mem_size += PAGE_SIZE - 1;
- nesqp->qp_mem_size &= ~(PAGE_SIZE - 1);
-
- mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size,
- &nesqp->hwqp.sq_pbase);
- if (!mem)
- return -ENOMEM;
- nes_debug(NES_DBG_QP, "PCI consistent memory for "
- "host descriptor rings located @ %p (pa = 0x%08lX.) size = %u.\n",
- mem, (unsigned long)nesqp->hwqp.sq_pbase, nesqp->qp_mem_size);
-
- memset(mem, 0, nesqp->qp_mem_size);
-
- nesqp->hwqp.sq_vbase = mem;
- mem += sizeof(struct nes_hw_qp_wqe) * sq_size;
-
- nesqp->hwqp.rq_vbase = mem;
- nesqp->hwqp.rq_pbase = nesqp->hwqp.sq_pbase +
- sizeof(struct nes_hw_qp_wqe) * sq_size;
- mem += sizeof(struct nes_hw_qp_wqe) * rq_size;
-
- nesqp->hwqp.q2_vbase = mem;
- nesqp->hwqp.q2_pbase = nesqp->hwqp.rq_pbase +
- sizeof(struct nes_hw_qp_wqe) * rq_size;
- mem += 256;
- memset(nesqp->hwqp.q2_vbase, 0, 256);
-
- nesqp->nesqp_context = mem;
- nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256;
- memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context));
- return 0;
-}
-
-
-/**
- * nes_free_qp_mem() is to free up the qp's pci_alloc_consistent() memory.
- */
-static void nes_free_qp_mem(struct nes_device *nesdev,
- struct nes_qp *nesqp, int virt_wqs)
-{
- unsigned long flags;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- if (!virt_wqs) {
- pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
- nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
- }else {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_256pbl++;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
- pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase );
- nesqp->pbl_vbase = NULL;
- if (nesqp->sq_kmapped) {
- nesqp->sq_kmapped = 0;
- kunmap(nesqp->page);
- }
- }
-}
-
-
-/**
- * nes_create_qp
- */
-static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
- struct ib_qp_init_attr *init_attr, struct ib_udata *udata)
-{
- u64 u64temp= 0;
- u64 u64nesqp = 0;
- struct nes_pd *nespd = to_nespd(ibpd);
- struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_qp *nesqp;
- struct nes_cq *nescq;
- struct nes_ucontext *nes_ucontext = rdma_udata_to_drv_context(
- udata, struct nes_ucontext, ibucontext);
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- struct nes_create_qp_req req;
- struct nes_create_qp_resp uresp;
- struct nes_pbl *nespbl = NULL;
- u32 qp_num = 0;
- u32 opcode = 0;
- /* u32 counter = 0; */
- void *mem;
- unsigned long flags;
- int ret;
- int err;
- int virt_wqs = 0;
- int sq_size;
- int rq_size;
- u8 sq_encoded_size;
- u8 rq_encoded_size;
- /* int counter; */
-
- if (init_attr->create_flags)
- return ERR_PTR(-EINVAL);
-
- atomic_inc(&qps_created);
- switch (init_attr->qp_type) {
- case IB_QPT_RC:
- if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
- init_attr->cap.max_inline_data = 0;
- } else {
- init_attr->cap.max_inline_data = 64;
- }
- sq_size = init_attr->cap.max_send_wr;
- rq_size = init_attr->cap.max_recv_wr;
-
- /* check if the encoded sizes are OK or not... */
- sq_encoded_size = nes_get_encoded_size(&sq_size);
- rq_encoded_size = nes_get_encoded_size(&rq_size);
-
- if ((!sq_encoded_size) || (!rq_encoded_size)) {
- nes_debug(NES_DBG_QP, "ERROR bad rq (%u) or sq (%u) size\n",
- rq_size, sq_size);
- return ERR_PTR(-EINVAL);
- }
-
- init_attr->cap.max_send_wr = sq_size -2;
- init_attr->cap.max_recv_wr = rq_size -1;
- nes_debug(NES_DBG_QP, "RQ size=%u, SQ Size=%u\n", rq_size, sq_size);
-
- ret = nes_alloc_resource(nesadapter, nesadapter->allocated_qps,
- nesadapter->max_qp, &qp_num, &nesadapter->next_qp, NES_RESOURCE_QP);
- if (ret) {
- return ERR_PTR(ret);
- }
-
- /* Need 512 (actually now 1024) byte alignment on this structure */
- mem = kzalloc(sizeof(*nesqp)+NES_SW_CONTEXT_ALIGN-1, GFP_KERNEL);
- if (!mem) {
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- return ERR_PTR(-ENOMEM);
- }
- u64nesqp = (unsigned long)mem;
- u64nesqp += ((u64)NES_SW_CONTEXT_ALIGN) - 1;
- u64temp = ((u64)NES_SW_CONTEXT_ALIGN) - 1;
- u64nesqp &= ~u64temp;
- nesqp = (struct nes_qp *)(unsigned long)u64nesqp;
- /* nes_debug(NES_DBG_QP, "nesqp=%p, allocated buffer=%p. Rounded to closest %u\n",
- nesqp, mem, NES_SW_CONTEXT_ALIGN); */
- nesqp->allocated_buffer = mem;
-
- if (udata) {
- if (ib_copy_from_udata(&req, udata, sizeof(struct nes_create_qp_req))) {
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- kfree(nesqp->allocated_buffer);
- nes_debug(NES_DBG_QP, "ib_copy_from_udata() Failed \n");
- return ERR_PTR(-EFAULT);
- }
- if (req.user_wqe_buffers) {
- virt_wqs = 1;
- }
- if (req.user_qp_buffer)
- nesqp->nesuqp_addr = req.user_qp_buffer;
-
- nesqp->user_mode = 1;
- if (virt_wqs) {
- err = 1;
- list_for_each_entry(nespbl, &nes_ucontext->qp_reg_mem_list, list) {
- if (nespbl->user_base == (unsigned long )req.user_wqe_buffers) {
- list_del(&nespbl->list);
- err = 0;
- nes_debug(NES_DBG_QP, "Found PBL for virtual QP. nespbl=%p. user_base=0x%lx\n",
- nespbl, nespbl->user_base);
- break;
- }
- }
- if (err) {
- nes_debug(NES_DBG_QP, "Didn't Find PBL for virtual QP. address = %llx.\n",
- (long long unsigned int)req.user_wqe_buffers);
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- kfree(nesqp->allocated_buffer);
- return ERR_PTR(-EFAULT);
- }
- }
-
- nesqp->mmap_sq_db_index =
- find_next_zero_bit(nes_ucontext->allocated_wqs,
- NES_MAX_USER_WQ_REGIONS, nes_ucontext->first_free_wq);
- /* nes_debug(NES_DBG_QP, "find_first_zero_biton wqs returned %u\n",
- nespd->mmap_db_index); */
- if (nesqp->mmap_sq_db_index >= NES_MAX_USER_WQ_REGIONS) {
- nes_debug(NES_DBG_QP,
- "db index > max user regions, failing create QP\n");
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- if (virt_wqs) {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase,
- nespbl->pbl_pbase);
- kfree(nespbl);
- }
- kfree(nesqp->allocated_buffer);
- return ERR_PTR(-ENOMEM);
- }
- set_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs);
- nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp;
- nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index + 1;
- }
- err = (!virt_wqs) ? nes_setup_mmap_qp(nesqp, nesvnic, sq_size, rq_size) :
- nes_setup_virt_qp(nesqp, nespbl, nesvnic, sq_size, rq_size);
- if (err) {
- nes_debug(NES_DBG_QP,
- "error geting qp mem code = %d\n", err);
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- kfree(nesqp->allocated_buffer);
- return ERR_PTR(-ENOMEM);
- }
-
- nesqp->hwqp.sq_size = sq_size;
- nesqp->hwqp.sq_encoded_size = sq_encoded_size;
- nesqp->hwqp.sq_head = 1;
- nesqp->hwqp.rq_size = rq_size;
- nesqp->hwqp.rq_encoded_size = rq_encoded_size;
- /* nes_debug(NES_DBG_QP, "nesqp->nesqp_context_pbase = %p\n",
- (void *)nesqp->nesqp_context_pbase);
- */
- nesqp->hwqp.qp_id = qp_num;
- nesqp->ibqp.qp_num = nesqp->hwqp.qp_id;
- nesqp->nespd = nespd;
-
- nescq = to_nescq(init_attr->send_cq);
- nesqp->nesscq = nescq;
- nescq = to_nescq(init_attr->recv_cq);
- nesqp->nesrcq = nescq;
-
- nesqp->nesqp_context->misc |= cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) <<
- NES_QPCONTEXT_MISC_PCI_FCN_SHIFT);
- nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.rq_encoded_size <<
- NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT);
- nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.sq_encoded_size <<
- NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT);
- if (!udata) {
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_PRIV_EN);
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_FAST_REGISTER_EN);
- }
- nesqp->nesqp_context->cqs = cpu_to_le32(nesqp->nesscq->hw_cq.cq_number +
- ((u32)nesqp->nesrcq->hw_cq.cq_number << 16));
- u64temp = (u64)nesqp->hwqp.sq_pbase;
- nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp);
- nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32));
-
-
- if (!virt_wqs) {
- u64temp = (u64)nesqp->hwqp.sq_pbase;
- nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp);
- nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32));
- u64temp = (u64)nesqp->hwqp.rq_pbase;
- nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp);
- nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32));
- } else {
- u64temp = (u64)nesqp->pbl_pbase;
- nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp);
- nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32));
- }
-
- /* nes_debug(NES_DBG_QP, "next_qp_nic_index=%u, using nic_index=%d\n",
- nesvnic->next_qp_nic_index,
- nesvnic->qp_nic_index[nesvnic->next_qp_nic_index]); */
- spin_lock_irqsave(&nesdev->cqp.lock, flags);
- nesqp->nesqp_context->misc2 |= cpu_to_le32(
- (u32)nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] <<
- NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT);
- nesvnic->next_qp_nic_index++;
- if ((nesvnic->next_qp_nic_index > 3) ||
- (nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] == 0xf)) {
- nesvnic->next_qp_nic_index = 0;
- }
- spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-
- nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32((u32)nesqp->nespd->pd_id << 16);
- u64temp = (u64)nesqp->hwqp.q2_pbase;
- nesqp->nesqp_context->q2_addr_low = cpu_to_le32((u32)u64temp);
- nesqp->nesqp_context->q2_addr_high = cpu_to_le32((u32)(u64temp >> 32));
- nesqp->nesqp_context->aeq_token_low = cpu_to_le32((u32)((unsigned long)(nesqp)));
- nesqp->nesqp_context->aeq_token_high = cpu_to_le32((u32)(upper_32_bits((unsigned long)(nesqp))));
- nesqp->nesqp_context->ird_ord_sizes = cpu_to_le32(NES_QPCONTEXT_ORDIRD_ALSMM |
- NES_QPCONTEXT_ORDIRD_AAH |
- ((((u32)nesadapter->max_irrq_wr) <<
- NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT) & NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK));
- if (disable_mpa_crc) {
- nes_debug(NES_DBG_QP, "Disabling MPA crc checking due to module option.\n");
- nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(NES_QPCONTEXT_ORDIRD_RNMC);
- }
-
-
- /* Create the QP */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_QP, "Failed to get a cqp_request\n");
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- nes_free_qp_mem(nesdev, nesqp,virt_wqs);
- kfree(nesqp->allocated_buffer);
- return ERR_PTR(-ENOMEM);
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- if (!virt_wqs) {
- opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP |
- NES_CQP_QP_IWARP_STATE_IDLE;
- } else {
- opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_VIRT_WQS |
- NES_CQP_QP_IWARP_STATE_IDLE;
- }
- opcode |= NES_CQP_QP_CQS_VALID;
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
-
- u64temp = (u64)nesqp->nesqp_context_pbase;
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- nes_debug(NES_DBG_QP, "Waiting for create iWARP QP%u to complete.\n",
- nesqp->hwqp.qp_id);
- ret = wait_event_timeout(cqp_request->waitq,
- (cqp_request->request_done != 0), NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_QP, "Create iwarp QP%u completed, wait_event_timeout ret=%u,"
- " nesdev->cqp_head = %u, nesdev->cqp.sq_tail = %u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail,
- cqp_request->major_code, cqp_request->minor_code);
- if ((!ret) || (cqp_request->major_code)) {
- nes_put_cqp_request(nesdev, cqp_request);
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- nes_free_qp_mem(nesdev, nesqp,virt_wqs);
- kfree(nesqp->allocated_buffer);
- if (!ret) {
- return ERR_PTR(-ETIME);
- } else {
- return ERR_PTR(-EIO);
- }
- }
-
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (udata) {
- uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index;
- uresp.mmap_rq_db_index = 0;
- uresp.actual_sq_size = sq_size;
- uresp.actual_rq_size = rq_size;
- uresp.qp_id = nesqp->hwqp.qp_id;
- uresp.nes_drv_opt = nes_drv_opt;
- if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) {
- nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
- nes_free_qp_mem(nesdev, nesqp,virt_wqs);
- kfree(nesqp->allocated_buffer);
- return ERR_PTR(-EFAULT);
- }
- }
-
- nes_debug(NES_DBG_QP, "QP%u structure located @%p.Size = %u.\n",
- nesqp->hwqp.qp_id, nesqp, (u32)sizeof(*nesqp));
- spin_lock_init(&nesqp->lock);
- nes_add_ref(&nesqp->ibqp);
- break;
- default:
- nes_debug(NES_DBG_QP, "Invalid QP type: %d\n", init_attr->qp_type);
- return ERR_PTR(-EINVAL);
- }
- init_completion(&nesqp->sq_drained);
- init_completion(&nesqp->rq_drained);
-
- nesqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR);
- timer_setup(&nesqp->terminate_timer, nes_terminate_timeout, 0);
-
- /* update the QP table */
- nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp;
- nes_debug(NES_DBG_QP, "netdev refcnt=%u\n",
- netdev_refcnt_read(nesvnic->netdev));
-
- return &nesqp->ibqp;
-}
-
-/**
- * nes_clean_cq
- */
-static void nes_clean_cq(struct nes_qp *nesqp, struct nes_cq *nescq)
-{
- u32 cq_head;
- u32 lo;
- u32 hi;
- u64 u64temp;
- unsigned long flags = 0;
-
- spin_lock_irqsave(&nescq->lock, flags);
-
- cq_head = nescq->hw_cq.cq_head;
- while (le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) {
- rmb();
- lo = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]);
- hi = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]);
- u64temp = (((u64)hi) << 32) | ((u64)lo);
- u64temp &= ~(NES_SW_CONTEXT_ALIGN-1);
- if (u64temp == (u64)(unsigned long)nesqp) {
- /* Zero the context value so cqe will be ignored */
- nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = 0;
- nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX] = 0;
- }
-
- if (++cq_head >= nescq->hw_cq.cq_size)
- cq_head = 0;
- }
-
- spin_unlock_irqrestore(&nescq->lock, flags);
-}
-
-
-/**
- * nes_destroy_qp
- */
-static int nes_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
-{
- struct nes_qp *nesqp = to_nesqp(ibqp);
- struct nes_ucontext *nes_ucontext;
- struct ib_qp_attr attr;
- struct iw_cm_id *cm_id;
- struct iw_cm_event cm_event;
- int ret = 0;
-
- atomic_inc(&sw_qps_destroyed);
- nesqp->destroyed = 1;
-
- /* Blow away the connection if it exists. */
- if (nesqp->ibqp_state >= IB_QPS_INIT && nesqp->ibqp_state <= IB_QPS_RTS) {
- /* if (nesqp->ibqp_state == IB_QPS_RTS) { */
- attr.qp_state = IB_QPS_ERR;
- nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL);
- }
-
- if (((nesqp->ibqp_state == IB_QPS_INIT) ||
- (nesqp->ibqp_state == IB_QPS_RTR)) && (nesqp->cm_id)) {
- cm_id = nesqp->cm_id;
- cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
- cm_event.status = -ETIMEDOUT;
- cm_event.local_addr = cm_id->local_addr;
- cm_event.remote_addr = cm_id->remote_addr;
- cm_event.private_data = NULL;
- cm_event.private_data_len = 0;
-
- nes_debug(NES_DBG_QP, "Generating a CM Timeout Event for "
- "QP%u. cm_id = %p, refcount = %u. \n",
- nesqp->hwqp.qp_id, cm_id, atomic_read(&nesqp->refcount));
-
- cm_id->rem_ref(cm_id);
- ret = cm_id->event_handler(cm_id, &cm_event);
- if (ret)
- nes_debug(NES_DBG_QP, "OFA CM event_handler returned, ret=%d\n", ret);
- }
-
- if (nesqp->user_mode) {
- if (udata) {
- nes_ucontext =
- rdma_udata_to_drv_context(
- udata,
- struct nes_ucontext,
- ibucontext);
- clear_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs);
- nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = NULL;
- if (nes_ucontext->first_free_wq > nesqp->mmap_sq_db_index) {
- nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index;
- }
- }
- if (nesqp->pbl_pbase && nesqp->sq_kmapped) {
- nesqp->sq_kmapped = 0;
- kunmap(nesqp->page);
- }
- } else {
- /* Clean any pending completions from the cq(s) */
- if (nesqp->nesscq)
- nes_clean_cq(nesqp, nesqp->nesscq);
-
- if ((nesqp->nesrcq) && (nesqp->nesrcq != nesqp->nesscq))
- nes_clean_cq(nesqp, nesqp->nesrcq);
- }
- nes_rem_ref(&nesqp->ibqp);
- return 0;
-}
-
-
-/**
- * nes_create_cq
- */
-static int nes_create_cq(struct ib_cq *ibcq,
- const struct ib_cq_init_attr *attr,
- struct ib_udata *udata)
-{
- struct ib_device *ibdev = ibcq->device;
- int entries = attr->cqe;
- u64 u64temp;
- struct nes_vnic *nesvnic = to_nesvnic(ibdev);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_cq *nescq = to_nescq(ibcq);
- struct nes_ucontext *nes_ucontext = NULL;
- struct nes_cqp_request *cqp_request;
- void *mem = NULL;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_pbl *nespbl = NULL;
- struct nes_create_cq_req req;
- struct nes_create_cq_resp resp;
- u32 cq_num = 0;
- u32 opcode = 0;
- u32 pbl_entries = 1;
- int err;
- unsigned long flags;
- int ret;
-
- if (attr->flags)
- return -EINVAL;
-
- if (entries > nesadapter->max_cqe)
- return -EINVAL;
-
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_cqs,
- nesadapter->max_cq, &cq_num, &nesadapter->next_cq, NES_RESOURCE_CQ);
- if (err)
- return err;
-
- nescq->hw_cq.cq_size = max(entries + 1, 5);
- nescq->hw_cq.cq_number = cq_num;
- nescq->ibcq.cqe = nescq->hw_cq.cq_size - 1;
-
- if (udata) {
- struct nes_ucontext *nes_ucontext = rdma_udata_to_drv_context(
- udata, struct nes_ucontext, ibucontext);
-
- if (ib_copy_from_udata(&req, udata,
- sizeof(struct nes_create_cq_req))) {
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -EFAULT;
- }
- nesvnic->mcrq_ucontext = nes_ucontext;
- nes_ucontext->mcrqf = req.mcrqf;
- if (nes_ucontext->mcrqf) {
- if (nes_ucontext->mcrqf & 0x80000000)
- nescq->hw_cq.cq_number = nesvnic->nic.qp_id + 28 + 2 * ((nes_ucontext->mcrqf & 0xf) - 1);
- else if (nes_ucontext->mcrqf & 0x40000000)
- nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff;
- else
- nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1;
- nescq->mcrqf = nes_ucontext->mcrqf;
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- }
- err = 1;
- list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) {
- if (nespbl->user_base == (unsigned long )req.user_cq_buffer) {
- list_del(&nespbl->list);
- err = 0;
- nes_debug(NES_DBG_CQ, "Found PBL for virtual CQ. nespbl=%p.\n",
- nespbl);
- break;
- }
- }
- if (err) {
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -EFAULT;
- }
-
- pbl_entries = nespbl->pbl_size >> 3;
- nescq->cq_mem_size = 0;
- } else {
- nescq->cq_mem_size = nescq->hw_cq.cq_size * sizeof(struct nes_hw_cqe);
- nes_debug(NES_DBG_CQ, "Attempting to allocate pci memory (%u entries, %u bytes) for CQ%u.\n",
- entries, nescq->cq_mem_size, nescq->hw_cq.cq_number);
-
- /* allocate the physical buffer space */
- mem = pci_zalloc_consistent(nesdev->pcidev, nescq->cq_mem_size,
- &nescq->hw_cq.cq_pbase);
- if (!mem) {
- printk(KERN_ERR PFX "Unable to allocate pci memory for cq\n");
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -ENOMEM;
- }
-
- nescq->hw_cq.cq_vbase = mem;
- nescq->hw_cq.cq_head = 0;
- }
-
- nescq->hw_cq.ce_handler = nes_iwarp_ce_handler;
- spin_lock_init(&nescq->lock);
-
- /* send CreateCQ request to CQP */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n");
- if (!udata)
- pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
- nescq->hw_cq.cq_pbase);
- else {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size,
- nespbl->pbl_vbase, nespbl->pbl_pbase);
- kfree(nespbl);
- }
-
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -ENOMEM;
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- opcode = NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
- NES_CQP_CQ_CHK_OVERFLOW |
- NES_CQP_CQ_CEQE_MASK | ((u32)nescq->hw_cq.cq_size << 16);
-
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
-
- if (pbl_entries != 1) {
- if (pbl_entries > 32) {
- /* use 4k pbl */
- nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 4k PBL\n", pbl_entries);
- if (nesadapter->free_4kpbl == 0) {
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- nes_free_cqp_request(nesdev, cqp_request);
- if (!udata)
- pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
- nescq->hw_cq.cq_pbase);
- else {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size,
- nespbl->pbl_vbase, nespbl->pbl_pbase);
- kfree(nespbl);
- }
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -ENOMEM;
- } else {
- opcode |= (NES_CQP_CQ_VIRT | NES_CQP_CQ_4KB_CHUNK);
- nescq->virtual_cq = 2;
- nesadapter->free_4kpbl--;
- }
- } else {
- /* use 256 byte pbl */
- nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 256 byte PBL\n", pbl_entries);
- if (nesadapter->free_256pbl == 0) {
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- nes_free_cqp_request(nesdev, cqp_request);
- if (!udata)
- pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
- nescq->hw_cq.cq_pbase);
- else {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size,
- nespbl->pbl_vbase, nespbl->pbl_pbase);
- kfree(nespbl);
- }
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -ENOMEM;
- } else {
- opcode |= NES_CQP_CQ_VIRT;
- nescq->virtual_cq = 1;
- nesadapter->free_256pbl--;
- }
- }
- }
-
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- (nescq->hw_cq.cq_number | ((u32)nesdev->ceq_index << 16)));
-
- if (udata) {
- if (pbl_entries != 1)
- u64temp = (u64)nespbl->pbl_pbase;
- else
- u64temp = le64_to_cpu(nespbl->pbl_vbase[0]);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX,
- nes_ucontext->mmap_db_index[0]);
- } else {
- u64temp = (u64)nescq->hw_cq.cq_pbase;
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
- }
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
- u64temp = (u64)(unsigned long)&nescq->hw_cq;
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] =
- cpu_to_le32((u32)(u64temp >> 1));
- cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
- cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- nes_debug(NES_DBG_CQ, "Waiting for create iWARP CQ%u to complete.\n",
- nescq->hw_cq.cq_number);
- ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done),
- NES_EVENT_TIMEOUT * 2);
- nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n",
- nescq->hw_cq.cq_number, ret);
- if ((!ret) || (cqp_request->major_code)) {
- nes_put_cqp_request(nesdev, cqp_request);
- if (!udata)
- pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
- nescq->hw_cq.cq_pbase);
- else {
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size,
- nespbl->pbl_vbase, nespbl->pbl_pbase);
- kfree(nespbl);
- }
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -EIO;
- }
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (udata) {
- /* free the nespbl */
- pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase,
- nespbl->pbl_pbase);
- kfree(nespbl);
- resp.cq_id = nescq->hw_cq.cq_number;
- resp.cq_size = nescq->hw_cq.cq_size;
- resp.mmap_db_index = 0;
- if (ib_copy_to_udata(udata, &resp,
- sizeof(resp) - sizeof(resp.reserved))) {
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
- return -EFAULT;
- }
- }
-
- return 0;
-}
-
-/**
- * nes_destroy_cq
- */
-static void nes_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
-{
- struct nes_cq *nescq;
- struct nes_device *nesdev;
- struct nes_vnic *nesvnic;
- struct nes_adapter *nesadapter;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request cqp_request = {};
- unsigned long flags;
- u32 opcode = 0;
-
- nescq = to_nescq(ib_cq);
- nesvnic = to_nesvnic(ib_cq->device);
- nesdev = nesvnic->nesdev;
- nesadapter = nesdev->nesadapter;
-
- nes_debug(NES_DBG_CQ, "Destroy CQ%u\n", nescq->hw_cq.cq_number);
-
- /* Send DestroyCQ request to CQP */
- INIT_LIST_HEAD(&cqp_request.list);
- init_waitqueue_head(&cqp_request.waitq);
-
- cqp_request.waiting = 1;
- cqp_wqe = &cqp_request.cqp_wqe;
- opcode = NES_CQP_DESTROY_CQ | (nescq->hw_cq.cq_size << 16);
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- if (nescq->virtual_cq == 1) {
- nesadapter->free_256pbl++;
- if (nesadapter->free_256pbl > nesadapter->max_256pbl) {
- printk(KERN_ERR PFX "%s: free 256B PBLs(%u) has exceeded the max(%u)\n",
- __func__, nesadapter->free_256pbl, nesadapter->max_256pbl);
- }
- } else if (nescq->virtual_cq == 2) {
- nesadapter->free_4kpbl++;
- if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) {
- printk(KERN_ERR PFX "%s: free 4K PBLs(%u) has exceeded the max(%u)\n",
- __func__, nesadapter->free_4kpbl, nesadapter->max_4kpbl);
- }
- opcode |= NES_CQP_CQ_4KB_CHUNK;
- }
-
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
- (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16)));
- if (!nescq->mcrqf)
- nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number);
-
- nes_post_cqp_request(nesdev, &cqp_request);
-
- /* Wait for CQP */
- nes_debug(NES_DBG_CQ, "Waiting for destroy iWARP CQ%u to complete.\n",
- nescq->hw_cq.cq_number);
- wait_event_timeout(cqp_request.waitq, cqp_request.request_done,
- NES_EVENT_TIMEOUT);
- nes_debug(
- NES_DBG_CQ,
- "Destroy iWARP CQ%u completed CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- nescq->hw_cq.cq_number, cqp_request.major_code,
- cqp_request.minor_code);
-
- if (nescq->cq_mem_size)
- pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size,
- nescq->hw_cq.cq_vbase, nescq->hw_cq.cq_pbase);
-}
-
-/**
- * root_256
- */
-static u32 root_256(struct nes_device *nesdev,
- struct nes_root_vpbl *root_vpbl,
- struct nes_root_vpbl *new_root,
- u16 pbl_count_4k)
-{
- u64 leaf_pbl;
- int i, j, k;
-
- if (pbl_count_4k == 1) {
- new_root->pbl_vbase = pci_alloc_consistent(nesdev->pcidev,
- 512, &new_root->pbl_pbase);
-
- if (new_root->pbl_vbase == NULL)
- return 0;
-
- leaf_pbl = (u64)root_vpbl->pbl_pbase;
- for (i = 0; i < 16; i++) {
- new_root->pbl_vbase[i].pa_low =
- cpu_to_le32((u32)leaf_pbl);
- new_root->pbl_vbase[i].pa_high =
- cpu_to_le32((u32)((((u64)leaf_pbl) >> 32)));
- leaf_pbl += 256;
- }
- } else {
- for (i = 3; i >= 0; i--) {
- j = i * 16;
- root_vpbl->pbl_vbase[j] = root_vpbl->pbl_vbase[i];
- leaf_pbl = le32_to_cpu(root_vpbl->pbl_vbase[j].pa_low) +
- (((u64)le32_to_cpu(root_vpbl->pbl_vbase[j].pa_high))
- << 32);
- for (k = 1; k < 16; k++) {
- leaf_pbl += 256;
- root_vpbl->pbl_vbase[j + k].pa_low =
- cpu_to_le32((u32)leaf_pbl);
- root_vpbl->pbl_vbase[j + k].pa_high =
- cpu_to_le32((u32)((((u64)leaf_pbl) >> 32)));
- }
- }
- }
-
- return 1;
-}
-
-
-/**
- * nes_reg_mr
- */
-static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
- u32 stag, u64 region_length, struct nes_root_vpbl *root_vpbl,
- dma_addr_t single_buffer, u16 pbl_count_4k,
- u16 residual_page_count_4k, int acc, u64 *iova_start,
- u16 *actual_pbl_cnt, u8 *used_4k_pbls)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- unsigned long flags;
- int ret;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- uint pg_cnt = 0;
- u16 pbl_count_256 = 0;
- u16 pbl_count = 0;
- u8 use_256_pbls = 0;
- u8 use_4k_pbls = 0;
- u16 use_two_level = (pbl_count_4k > 1) ? 1 : 0;
- struct nes_root_vpbl new_root = { 0, NULL, NULL };
- u32 opcode = 0;
- u16 major_code;
-
- /* Register the region with the adapter */
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- if (pbl_count_4k) {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
-
- pg_cnt = ((pbl_count_4k - 1) * 512) + residual_page_count_4k;
- pbl_count_256 = (pg_cnt + 31) / 32;
- if (pg_cnt <= 32) {
- if (pbl_count_256 <= nesadapter->free_256pbl)
- use_256_pbls = 1;
- else if (pbl_count_4k <= nesadapter->free_4kpbl)
- use_4k_pbls = 1;
- } else if (pg_cnt <= 2048) {
- if (((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) &&
- (nesadapter->free_4kpbl > (nesadapter->max_4kpbl >> 1))) {
- use_4k_pbls = 1;
- } else if ((pbl_count_256 + 1) <= nesadapter->free_256pbl) {
- use_256_pbls = 1;
- use_two_level = 1;
- } else if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) {
- use_4k_pbls = 1;
- }
- } else {
- if ((pbl_count_4k + 1) <= nesadapter->free_4kpbl)
- use_4k_pbls = 1;
- }
-
- if (use_256_pbls) {
- pbl_count = pbl_count_256;
- nesadapter->free_256pbl -= pbl_count + use_two_level;
- } else if (use_4k_pbls) {
- pbl_count = pbl_count_4k;
- nesadapter->free_4kpbl -= pbl_count + use_two_level;
- } else {
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- nes_debug(NES_DBG_MR, "Out of Pbls\n");
- nes_free_cqp_request(nesdev, cqp_request);
- return -ENOMEM;
- }
-
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- }
-
- if (use_256_pbls && use_two_level) {
- if (root_256(nesdev, root_vpbl, &new_root, pbl_count_4k) == 1) {
- if (new_root.pbl_pbase != 0)
- root_vpbl = &new_root;
- } else {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- nesadapter->free_256pbl += pbl_count_256 + use_two_level;
- use_256_pbls = 0;
-
- if (pbl_count_4k == 1)
- use_two_level = 0;
- pbl_count = pbl_count_4k;
-
- if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) {
- nesadapter->free_4kpbl -= pbl_count + use_two_level;
- use_4k_pbls = 1;
- }
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
-
- if (use_4k_pbls == 0)
- return -ENOMEM;
- }
- }
-
- opcode = NES_CQP_REGISTER_STAG | NES_CQP_STAG_RIGHTS_LOCAL_READ |
- NES_CQP_STAG_VA_TO | NES_CQP_STAG_MR;
- if (acc & IB_ACCESS_LOCAL_WRITE)
- opcode |= NES_CQP_STAG_RIGHTS_LOCAL_WRITE;
- if (acc & IB_ACCESS_REMOTE_WRITE)
- opcode |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_REM_ACC_EN;
- if (acc & IB_ACCESS_REMOTE_READ)
- opcode |= NES_CQP_STAG_RIGHTS_REMOTE_READ | NES_CQP_STAG_REM_ACC_EN;
- if (acc & IB_ACCESS_MW_BIND)
- opcode |= NES_CQP_STAG_RIGHTS_WINDOW_BIND | NES_CQP_STAG_REM_ACC_EN;
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, *iova_start);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, region_length);
-
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] =
- cpu_to_le32((u32)(region_length >> 8) & 0xff000000);
- cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |=
- cpu_to_le32(nespd->pd_id & 0x00007fff);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag);
-
- if (pbl_count == 0) {
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, single_buffer);
- } else {
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, root_vpbl->pbl_pbase);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, pbl_count);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (pg_cnt * 8));
-
- if (use_4k_pbls)
- cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE);
- }
- barrier();
-
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- stag, ret, cqp_request->major_code, cqp_request->minor_code);
- major_code = cqp_request->major_code;
- nes_put_cqp_request(nesdev, cqp_request);
-
- if ((!ret || major_code) && pbl_count != 0) {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- if (use_256_pbls)
- nesadapter->free_256pbl += pbl_count + use_two_level;
- else if (use_4k_pbls)
- nesadapter->free_4kpbl += pbl_count + use_two_level;
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- }
- if (new_root.pbl_pbase)
- pci_free_consistent(nesdev->pcidev, 512, new_root.pbl_vbase,
- new_root.pbl_pbase);
-
- if (!ret)
- return -ETIME;
- else if (major_code)
- return -EIO;
-
- *actual_pbl_cnt = pbl_count + use_two_level;
- *used_4k_pbls = use_4k_pbls;
- return 0;
-}
-
-
-/**
- * nes_reg_phys_mr
- */
-struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,
- int acc, u64 *iova_start)
-{
- u64 region_length;
- struct nes_pd *nespd = to_nespd(ib_pd);
- struct nes_vnic *nesvnic = to_nesvnic(ib_pd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_mr *nesmr;
- struct ib_mr *ibmr;
- struct nes_vpbl vpbl;
- struct nes_root_vpbl root_vpbl;
- u32 stag;
- unsigned long mask;
- u32 stag_index = 0;
- u32 next_stag_index = 0;
- u32 driver_key = 0;
- int err = 0;
- int ret = 0;
- u16 pbl_count = 0;
- u8 single_page = 1;
- u8 stag_key = 0;
-
- region_length = 0;
- vpbl.pbl_vbase = NULL;
- root_vpbl.pbl_vbase = NULL;
- root_vpbl.pbl_pbase = 0;
-
- get_random_bytes(&next_stag_index, sizeof(next_stag_index));
- stag_key = (u8)next_stag_index;
-
- driver_key = 0;
-
- next_stag_index >>= 8;
- next_stag_index %= nesadapter->max_mr;
-
- if ((addr ^ *iova_start) & ~PAGE_MASK)
- return ERR_PTR(-EINVAL);
-
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr,
- &stag_index, &next_stag_index, NES_RESOURCE_PHYS_MR);
- if (err) {
- return ERR_PTR(err);
- }
-
- nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL);
- if (!nesmr) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
-
- /* Allocate a 4K buffer for the PBL */
- vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096,
- &vpbl.pbl_pbase);
- nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n",
- vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase);
- if (!vpbl.pbl_vbase) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- ibmr = ERR_PTR(-ENOMEM);
- kfree(nesmr);
- goto reg_phys_err;
- }
-
-
- mask = !size;
-
- if (mask & ~PAGE_MASK) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n");
- ibmr = ERR_PTR(-EINVAL);
- kfree(nesmr);
- goto reg_phys_err;
- }
-
- region_length += size;
- vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)addr & PAGE_MASK);
- vpbl.pbl_vbase[0].pa_high = cpu_to_le32((u32)((((u64)addr) >> 32)));
-
- stag = stag_index << 8;
- stag |= driver_key;
- stag += (u32)stag_key;
-
- nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%016lX,"
- " length = 0x%016lX, index = 0x%08X\n",
- stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index);
-
- /* Make the leaf PBL the root if only one PBL */
- root_vpbl.pbl_pbase = vpbl.pbl_pbase;
-
- if (single_page) {
- pbl_count = 0;
- } else {
- pbl_count = 1;
- }
- ret = nes_reg_mr(nesdev, nespd, stag, region_length, &root_vpbl,
- addr, pbl_count, 1, acc, iova_start,
- &nesmr->pbls_used, &nesmr->pbl_4k);
-
- if (ret == 0) {
- nesmr->ibmr.rkey = stag;
- nesmr->ibmr.lkey = stag;
- nesmr->mode = IWNES_MEMREG_TYPE_MEM;
- ibmr = &nesmr->ibmr;
- } else {
- kfree(nesmr);
- ibmr = ERR_PTR(-ENOMEM);
- }
-
-reg_phys_err:
- /* single PBL case */
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase);
- return ibmr;
-}
-
-
-/**
- * nes_get_dma_mr
- */
-static struct ib_mr *nes_get_dma_mr(struct ib_pd *pd, int acc)
-{
- u64 kva = 0;
-
- nes_debug(NES_DBG_MR, "\n");
-
- return nes_reg_phys_mr(pd, 0, 0xffffffffffULL, acc, &kva);
-}
-
-/**
- * nes_reg_user_mr
- */
-static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
- u64 virt, int acc, struct ib_udata *udata)
-{
- u64 iova_start;
- __le64 *pbl;
- u64 region_length;
- dma_addr_t last_dma_addr = 0;
- dma_addr_t first_dma_addr = 0;
- struct nes_pd *nespd = to_nespd(pd);
- struct nes_vnic *nesvnic = to_nesvnic(pd->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct ib_mr *ibmr = ERR_PTR(-EINVAL);
- struct sg_dma_page_iter dma_iter;
- struct nes_ucontext *nes_ucontext = rdma_udata_to_drv_context(
- udata, struct nes_ucontext, ibucontext);
- struct nes_pbl *nespbl;
- struct nes_mr *nesmr;
- struct ib_umem *region;
- struct nes_mem_reg_req req;
- struct nes_vpbl vpbl;
- struct nes_root_vpbl root_vpbl;
- int page_index;
- int page_count = 0;
- int err, pbl_depth = 0;
- int ret;
- u32 stag;
- u32 stag_index = 0;
- u32 next_stag_index;
- u32 driver_key;
- u32 root_pbl_index = 0;
- u32 cur_pbl_index = 0;
- u32 skip_pages;
- u16 pbl_count;
- u8 single_page = 1;
- u8 stag_key;
-
- region = ib_umem_get(udata, start, length, acc, 0);
- if (IS_ERR(region)) {
- return (struct ib_mr *)region;
- }
-
- nes_debug(
- NES_DBG_MR,
- "User base = 0x%lX, Virt base = 0x%lX, length = %u, offset = %u, page size = %lu.\n",
- (unsigned long)start, (unsigned long)virt, (u32)length,
- ib_umem_offset(region), PAGE_SIZE);
-
- skip_pages = ((u32)ib_umem_offset(region)) >> 12;
-
- if (ib_copy_from_udata(&req, udata, sizeof(req))) {
- ib_umem_release(region);
- return ERR_PTR(-EFAULT);
- }
- nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type);
-
- switch (req.reg_type) {
- case IWNES_MEMREG_TYPE_MEM:
- pbl_depth = 0;
- region_length = 0;
- vpbl.pbl_vbase = NULL;
- root_vpbl.pbl_vbase = NULL;
- root_vpbl.pbl_pbase = 0;
-
- get_random_bytes(&next_stag_index, sizeof(next_stag_index));
- stag_key = (u8)next_stag_index;
-
- driver_key = next_stag_index & 0x70000000;
-
- next_stag_index >>= 8;
- next_stag_index %= nesadapter->max_mr;
-
- err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
- nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_USER_MR);
- if (err) {
- ib_umem_release(region);
- return ERR_PTR(err);
- }
-
- nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL);
- if (!nesmr) {
- ib_umem_release(region);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- return ERR_PTR(-ENOMEM);
- }
- nesmr->region = region;
-
- for_each_sg_dma_page (region->sg_head.sgl, &dma_iter, region->nmap, 0) {
-
- region_length += PAGE_SIZE;
- region_length -= skip_pages << 12;
- skip_pages = 0;
- if ((page_count != 0) && (page_count << 12) - (ib_umem_offset(region) & (4096 - 1)) >= region->length)
- goto enough_pages;
- if ((page_count & 0x01FF) == 0) {
- if (page_count >= 1024 * 512) {
- ib_umem_release(region);
- nes_free_resource(nesadapter,
- nesadapter->allocated_mrs, stag_index);
- kfree(nesmr);
- ibmr = ERR_PTR(-E2BIG);
- goto reg_user_mr_err;
- }
- if (root_pbl_index == 1) {
- root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev,
- 8192, &root_vpbl.pbl_pbase);
- nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n",
- root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase);
- if (!root_vpbl.pbl_vbase) {
- ib_umem_release(region);
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase,
- vpbl.pbl_pbase);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs,
- stag_index);
- kfree(nesmr);
- ibmr = ERR_PTR(-ENOMEM);
- goto reg_user_mr_err;
- }
- root_vpbl.leaf_vpbl = kcalloc(1024,
- sizeof(*root_vpbl.leaf_vpbl),
- GFP_KERNEL);
- if (!root_vpbl.leaf_vpbl) {
- ib_umem_release(region);
- pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase,
- root_vpbl.pbl_pbase);
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase,
- vpbl.pbl_pbase);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs,
- stag_index);
- kfree(nesmr);
- ibmr = ERR_PTR(-ENOMEM);
- goto reg_user_mr_err;
- }
- root_vpbl.pbl_vbase[0].pa_low =
- cpu_to_le32((u32)vpbl.pbl_pbase);
- root_vpbl.pbl_vbase[0].pa_high =
- cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32)));
- root_vpbl.leaf_vpbl[0] = vpbl;
- }
- vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096,
- &vpbl.pbl_pbase);
- nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%08X\n",
- vpbl.pbl_vbase, (unsigned int)vpbl.pbl_pbase);
- if (!vpbl.pbl_vbase) {
- ib_umem_release(region);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- ibmr = ERR_PTR(-ENOMEM);
- kfree(nesmr);
- goto reg_user_mr_err;
- }
- if (1 <= root_pbl_index) {
- root_vpbl.pbl_vbase[root_pbl_index].pa_low =
- cpu_to_le32((u32)vpbl.pbl_pbase);
- root_vpbl.pbl_vbase[root_pbl_index].pa_high =
- cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32)));
- root_vpbl.leaf_vpbl[root_pbl_index] = vpbl;
- }
- root_pbl_index++;
- cur_pbl_index = 0;
- }
- if (single_page) {
- if (page_count != 0) {
- if ((last_dma_addr + 4096) != sg_page_iter_dma_address(&dma_iter))
- single_page = 0;
- last_dma_addr = sg_page_iter_dma_address(&dma_iter);
- } else {
- first_dma_addr = sg_page_iter_dma_address(&dma_iter);
- last_dma_addr = first_dma_addr;
- }
- }
-
- vpbl.pbl_vbase[cur_pbl_index].pa_low =
- cpu_to_le32((u32)(sg_page_iter_dma_address(&dma_iter)));
- vpbl.pbl_vbase[cur_pbl_index].pa_high =
- cpu_to_le32((u32)((u64)(sg_page_iter_dma_address(&dma_iter))));
- cur_pbl_index++;
- page_count++;
- }
-
-enough_pages:
- nes_debug(NES_DBG_MR, "calculating stag, stag_index=0x%08x, driver_key=0x%08x,"
- " stag_key=0x%08x\n",
- stag_index, driver_key, stag_key);
- stag = stag_index << 8;
- stag |= driver_key;
- stag += (u32)stag_key;
-
- iova_start = virt;
- /* Make the leaf PBL the root if only one PBL */
- if (root_pbl_index == 1) {
- root_vpbl.pbl_pbase = vpbl.pbl_pbase;
- }
-
- if (single_page) {
- pbl_count = 0;
- } else {
- pbl_count = root_pbl_index;
- first_dma_addr = 0;
- }
- nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%08X, length = 0x%08X,"
- " index = 0x%08X, region->length=0x%08llx, pbl_count = %u\n",
- stag, (unsigned int)iova_start,
- (unsigned int)region_length, stag_index,
- (unsigned long long)region->length, pbl_count);
- ret = nes_reg_mr(nesdev, nespd, stag, region->length, &root_vpbl,
- first_dma_addr, pbl_count, (u16)cur_pbl_index, acc,
- &iova_start, &nesmr->pbls_used, &nesmr->pbl_4k);
-
- nes_debug(NES_DBG_MR, "ret=%d\n", ret);
-
- if (ret == 0) {
- nesmr->ibmr.rkey = stag;
- nesmr->ibmr.lkey = stag;
- nesmr->mode = IWNES_MEMREG_TYPE_MEM;
- ibmr = &nesmr->ibmr;
- } else {
- ib_umem_release(region);
- kfree(nesmr);
- ibmr = ERR_PTR(-ENOMEM);
- }
-
-reg_user_mr_err:
- /* free the resources */
- if (root_pbl_index == 1) {
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase,
- vpbl.pbl_pbase);
- } else {
- for (page_index=0; page_index<root_pbl_index; page_index++) {
- pci_free_consistent(nesdev->pcidev, 4096,
- root_vpbl.leaf_vpbl[page_index].pbl_vbase,
- root_vpbl.leaf_vpbl[page_index].pbl_pbase);
- }
- kfree(root_vpbl.leaf_vpbl);
- pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase,
- root_vpbl.pbl_pbase);
- }
-
- nes_debug(NES_DBG_MR, "Leaving, ibmr=%p", ibmr);
-
- return ibmr;
- case IWNES_MEMREG_TYPE_QP:
- case IWNES_MEMREG_TYPE_CQ:
- if (!region->length) {
- nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n");
- ib_umem_release(region);
- return ERR_PTR(-EINVAL);
- }
- nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL);
- if (!nespbl) {
- ib_umem_release(region);
- return ERR_PTR(-ENOMEM);
- }
- nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL);
- if (!nesmr) {
- ib_umem_release(region);
- kfree(nespbl);
- return ERR_PTR(-ENOMEM);
- }
- nesmr->region = region;
- pbl_depth = region->length >> 12;
- pbl_depth += (region->length & (4096-1)) ? 1 : 0;
- nespbl->pbl_size = pbl_depth*sizeof(u64);
- if (req.reg_type == IWNES_MEMREG_TYPE_QP) {
- nes_debug(NES_DBG_MR, "Attempting to allocate QP PBL memory");
- } else {
- nes_debug(NES_DBG_MR, "Attempting to allocate CP PBL memory");
- }
-
- nes_debug(NES_DBG_MR, " %u bytes, %u entries.\n",
- nespbl->pbl_size, pbl_depth);
- pbl = pci_alloc_consistent(nesdev->pcidev, nespbl->pbl_size,
- &nespbl->pbl_pbase);
- if (!pbl) {
- ib_umem_release(region);
- kfree(nesmr);
- kfree(nespbl);
- nes_debug(NES_DBG_MR, "Unable to allocate PBL memory\n");
- return ERR_PTR(-ENOMEM);
- }
-
- nespbl->pbl_vbase = (u64 *)pbl;
- nespbl->user_base = start;
- nes_debug(NES_DBG_MR, "Allocated PBL memory, %u bytes, pbl_pbase=%lx,"
- " pbl_vbase=%p user_base=0x%lx\n",
- nespbl->pbl_size, (unsigned long) nespbl->pbl_pbase,
- (void *) nespbl->pbl_vbase, nespbl->user_base);
-
- nespbl->page = sg_page(region->sg_head.sgl);
- for_each_sg_dma_page(region->sg_head.sgl, &dma_iter, region->nmap, 0) {
- ((__le32 *)pbl)[0] = cpu_to_le32((u32)(sg_page_iter_dma_address(&dma_iter)));
- ((__le32 *)pbl)[1] = cpu_to_le32(((u64)(sg_page_iter_dma_address(&dma_iter)))>>32);
- nes_debug(NES_DBG_MR, "pbl=%p, *pbl=0x%016llx, 0x%08x%08x\n", pbl,
- (unsigned long long)*pbl,
- le32_to_cpu(((__le32 *)pbl)[1]), le32_to_cpu(((__le32 *)pbl)[0]));
- pbl++;
- }
-
- if (req.reg_type == IWNES_MEMREG_TYPE_QP) {
- list_add_tail(&nespbl->list, &nes_ucontext->qp_reg_mem_list);
- } else {
- list_add_tail(&nespbl->list, &nes_ucontext->cq_reg_mem_list);
- }
- nesmr->ibmr.rkey = -1;
- nesmr->ibmr.lkey = -1;
- nesmr->mode = req.reg_type;
- return &nesmr->ibmr;
- }
-
- ib_umem_release(region);
- return ERR_PTR(-ENOSYS);
-}
-
-
-/**
- * nes_dereg_mr
- */
-static int nes_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
-{
- struct nes_mr *nesmr = to_nesmr(ib_mr);
- struct nes_vnic *nesvnic = to_nesvnic(ib_mr->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- struct nes_adapter *nesadapter = nesdev->nesadapter;
- struct nes_hw_cqp_wqe *cqp_wqe;
- struct nes_cqp_request *cqp_request;
- unsigned long flags;
- int ret;
- u16 major_code;
- u16 minor_code;
-
-
- if (nesmr->pages)
- pci_free_consistent(nesdev->pcidev,
- nesmr->max_pages * sizeof(u64),
- nesmr->pages,
- nesmr->paddr);
-
- if (nesmr->region) {
- ib_umem_release(nesmr->region);
- }
- if (nesmr->mode != IWNES_MEMREG_TYPE_MEM) {
- kfree(nesmr);
- return 0;
- }
-
- /* Deallocate the region with the adapter */
-
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- cqp_request->waiting = 1;
- cqp_wqe = &cqp_request->cqp_wqe;
-
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- NES_CQP_DEALLOCATE_STAG | NES_CQP_STAG_VA_TO |
- NES_CQP_STAG_DEALLOC_PBLS | NES_CQP_STAG_MR);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ib_mr->rkey);
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X completed\n", ib_mr->rkey);
- ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_MR, "Deallocate STag 0x%08X completed, wait_event_timeout ret = %u,"
- " CQP Major:Minor codes = 0x%04X:0x%04X\n",
- ib_mr->rkey, ret, cqp_request->major_code, cqp_request->minor_code);
-
- major_code = cqp_request->major_code;
- minor_code = cqp_request->minor_code;
-
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (!ret) {
- nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag,"
- " ib_mr=%p, rkey = 0x%08X\n",
- ib_mr, ib_mr->rkey);
- return -ETIME;
- } else if (major_code) {
- nes_debug(NES_DBG_MR, "Error (0x%04X:0x%04X) while attempting"
- " to destroy STag, ib_mr=%p, rkey = 0x%08X\n",
- major_code, minor_code, ib_mr, ib_mr->rkey);
- return -EIO;
- }
-
- if (nesmr->pbls_used != 0) {
- spin_lock_irqsave(&nesadapter->pbl_lock, flags);
- if (nesmr->pbl_4k) {
- nesadapter->free_4kpbl += nesmr->pbls_used;
- if (nesadapter->free_4kpbl > nesadapter->max_4kpbl)
- printk(KERN_ERR PFX "free 4KB PBLs(%u) has "
- "exceeded the max(%u)\n",
- nesadapter->free_4kpbl,
- nesadapter->max_4kpbl);
- } else {
- nesadapter->free_256pbl += nesmr->pbls_used;
- if (nesadapter->free_256pbl > nesadapter->max_256pbl)
- printk(KERN_ERR PFX "free 256B PBLs(%u) has "
- "exceeded the max(%u)\n",
- nesadapter->free_256pbl,
- nesadapter->max_256pbl);
- }
- spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
- }
- nes_free_resource(nesadapter, nesadapter->allocated_mrs,
- (ib_mr->rkey & 0x0fffff00) >> 8);
-
- kfree(nesmr);
-
- return 0;
-}
-
-
-/**
- * show_rev
- */
-static ssize_t hw_rev_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct nes_ib_device *nesibdev =
- rdma_device_to_drv_device(dev, struct nes_ib_device, ibdev);
- struct nes_vnic *nesvnic = nesibdev->nesvnic;
-
- nes_debug(NES_DBG_INIT, "\n");
- return sprintf(buf, "%x\n", nesvnic->nesdev->nesadapter->hw_rev);
-}
-static DEVICE_ATTR_RO(hw_rev);
-
-/**
- * show_hca
- */
-static ssize_t hca_type_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- nes_debug(NES_DBG_INIT, "\n");
- return sprintf(buf, "NES020\n");
-}
-static DEVICE_ATTR_RO(hca_type);
-
-/**
- * show_board
- */
-static ssize_t board_id_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- nes_debug(NES_DBG_INIT, "\n");
- return sprintf(buf, "%.*s\n", 32, "NES020 Board ID");
-}
-static DEVICE_ATTR_RO(board_id);
-
-static struct attribute *nes_dev_attributes[] = {
- &dev_attr_hw_rev.attr,
- &dev_attr_hca_type.attr,
- &dev_attr_board_id.attr,
- NULL
-};
-
-static const struct attribute_group nes_attr_group = {
- .attrs = nes_dev_attributes,
-};
-
-/**
- * nes_query_qp
- */
-static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
- int attr_mask, struct ib_qp_init_attr *init_attr)
-{
- struct nes_qp *nesqp = to_nesqp(ibqp);
-
- nes_debug(NES_DBG_QP, "\n");
-
- attr->qp_access_flags = 0;
- attr->cap.max_send_wr = nesqp->hwqp.sq_size;
- attr->cap.max_recv_wr = nesqp->hwqp.rq_size;
- attr->cap.max_recv_sge = 1;
- if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA)
- attr->cap.max_inline_data = 0;
- else
- attr->cap.max_inline_data = 64;
-
- init_attr->event_handler = nesqp->ibqp.event_handler;
- init_attr->qp_context = nesqp->ibqp.qp_context;
- init_attr->send_cq = nesqp->ibqp.send_cq;
- init_attr->recv_cq = nesqp->ibqp.recv_cq;
- init_attr->srq = nesqp->ibqp.srq;
- init_attr->cap = attr->cap;
-
- return 0;
-}
-
-
-/**
- * nes_hw_modify_qp
- */
-int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp,
- u32 next_iwarp_state, u32 termlen, u32 wait_completion)
-{
- struct nes_hw_cqp_wqe *cqp_wqe;
- /* struct iw_cm_id *cm_id = nesqp->cm_id; */
- /* struct iw_cm_event cm_event; */
- struct nes_cqp_request *cqp_request;
- int ret;
- u16 major_code;
-
- nes_debug(NES_DBG_MOD_QP, "QP%u, refcount=%d\n",
- nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount));
-
- cqp_request = nes_get_cqp_request(nesdev);
- if (cqp_request == NULL) {
- nes_debug(NES_DBG_MOD_QP, "Failed to get a cqp_request.\n");
- return -ENOMEM;
- }
- if (wait_completion) {
- cqp_request->waiting = 1;
- } else {
- cqp_request->waiting = 0;
- }
- cqp_wqe = &cqp_request->cqp_wqe;
-
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
- NES_CQP_MODIFY_QP | NES_CQP_QP_TYPE_IWARP | next_iwarp_state);
- nes_debug(NES_DBG_MOD_QP, "using next_iwarp_state=%08x, wqe_words=%08x\n",
- next_iwarp_state, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX]));
- nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
- set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, (u64)nesqp->nesqp_context_pbase);
-
- /* If sending a terminate message, fill in the length (in words) */
- if (((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == NES_CQP_QP_IWARP_STATE_TERMINATE) &&
- !(next_iwarp_state & NES_CQP_QP_TERM_DONT_SEND_TERM_MSG)) {
- termlen = ((termlen + 3) >> 2) << NES_CQP_OP_TERMLEN_SHIFT;
- set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_NEW_MSS_IDX, termlen);
- }
-
- atomic_set(&cqp_request->refcount, 2);
- nes_post_cqp_request(nesdev, cqp_request);
-
- /* Wait for CQP */
- if (wait_completion) {
- /* nes_debug(NES_DBG_MOD_QP, "Waiting for modify iWARP QP%u to complete.\n",
- nesqp->hwqp.qp_id); */
- ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
- NES_EVENT_TIMEOUT);
- nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u completed, wait_event_timeout ret=%u, "
- "CQP Major:Minor codes = 0x%04X:0x%04X.\n",
- nesqp->hwqp.qp_id, ret, cqp_request->major_code, cqp_request->minor_code);
- major_code = cqp_request->major_code;
- if (major_code) {
- nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u failed"
- "CQP Major:Minor codes = 0x%04X:0x%04X, intended next state = 0x%08X.\n",
- nesqp->hwqp.qp_id, cqp_request->major_code,
- cqp_request->minor_code, next_iwarp_state);
- }
-
- nes_put_cqp_request(nesdev, cqp_request);
-
- if (!ret)
- return -ETIME;
- else if (major_code)
- return -EIO;
- else
- return 0;
- } else {
- return 0;
- }
-}
-
-
-/**
- * nes_modify_qp
- */
-int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
- int attr_mask, struct ib_udata *udata)
-{
- struct nes_qp *nesqp = to_nesqp(ibqp);
- struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- /* u32 cqp_head; */
- /* u32 counter; */
- u32 next_iwarp_state = 0;
- int err;
- unsigned long qplockflags;
- int ret;
- u16 original_last_aeq;
- u8 issue_modify_qp = 0;
- u8 dont_wait = 0;
-
- nes_debug(NES_DBG_MOD_QP, "QP%u: QP State=%u, cur QP State=%u,"
- " iwarp_state=0x%X, refcount=%d\n",
- nesqp->hwqp.qp_id, attr->qp_state, nesqp->ibqp_state,
- nesqp->iwarp_state, atomic_read(&nesqp->refcount));
-
- spin_lock_irqsave(&nesqp->lock, qplockflags);
-
- nes_debug(NES_DBG_MOD_QP, "QP%u: hw_iwarp_state=0x%X, hw_tcp_state=0x%X,"
- " QP Access Flags=0x%X, attr_mask = 0x%0x\n",
- nesqp->hwqp.qp_id, nesqp->hw_iwarp_state,
- nesqp->hw_tcp_state, attr->qp_access_flags, attr_mask);
-
- if (attr_mask & IB_QP_STATE) {
- switch (attr->qp_state) {
- case IB_QPS_INIT:
- nes_debug(NES_DBG_MOD_QP, "QP%u: new state = init\n",
- nesqp->hwqp.qp_id);
- if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_IDLE) {
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- return -EINVAL;
- }
- next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE;
- issue_modify_qp = 1;
- break;
- case IB_QPS_RTR:
- nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rtr\n",
- nesqp->hwqp.qp_id);
- if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_IDLE) {
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- return -EINVAL;
- }
- next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE;
- issue_modify_qp = 1;
- break;
- case IB_QPS_RTS:
- nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rts\n",
- nesqp->hwqp.qp_id);
- if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_RTS) {
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- return -EINVAL;
- }
- if (nesqp->cm_id == NULL) {
- nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n",
- nesqp->hwqp.qp_id );
- spin_unlock_irqrestore(&nesqp->lock, qplockflags);
- return -EINVAL;
- }
- next_iwarp_state = NES_CQP_QP_IWARP_STATE_RTS;
- if (nesqp->iwarp_state != NES_CQP_QP_IWARP_STATE_RTS)
- next_iwarp_state |= NES_CQP_QP_CONTEXT_VALID |
- NES_CQP_QP_ARP_VALID | NES_CQP_QP_ORD_VALID;
- issue_modify_qp = 1;
- nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_ESTABLISHED;
- nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_RTS;
- nesqp->hte_added = 1;
- break;
- case IB_QPS_SQD:
- issue_modify_qp = 1;
- nes_debug(NES_DBG_MOD_QP, "QP%u: new state=closing. SQ head=%u, SQ tail=%u\n",
- nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail);