diff options
Diffstat (limited to 'drivers/infiniband/hw/i40iw/i40iw_utils.c')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_utils.c | 1557 |
1 files changed, 0 insertions, 1557 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c deleted file mode 100644 index 016524683e17..000000000000 --- a/drivers/infiniband/hw/i40iw/i40iw_utils.c +++ /dev/null @@ -1,1557 +0,0 @@ -/******************************************************************************* -* -* Copyright (c) 2015-2016 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 -* OpenFabrics.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/ip.h> -#include <linux/tcp.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/irq.h> -#include <asm/byteorder.h> -#include <net/netevent.h> -#include <net/neighbour.h> -#include "i40iw.h" - -/** - * i40iw_arp_table - manage arp table - * @iwdev: iwarp device - * @ip_addr: ip address for device - * @mac_addr: mac address ptr - * @action: modify, delete or add - */ -int i40iw_arp_table(struct i40iw_device *iwdev, - u32 *ip_addr, - bool ipv4, - u8 *mac_addr, - u32 action) -{ - int arp_index; - int err; - u32 ip[4]; - - if (ipv4) { - memset(ip, 0, sizeof(ip)); - ip[0] = *ip_addr; - } else { - memcpy(ip, ip_addr, sizeof(ip)); - } - - for (arp_index = 0; (u32)arp_index < iwdev->arp_table_size; arp_index++) - if (memcmp(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)) == 0) - break; - switch (action) { - case I40IW_ARP_ADD: - if (arp_index != iwdev->arp_table_size) - return -1; - - arp_index = 0; - err = i40iw_alloc_resource(iwdev, iwdev->allocated_arps, - iwdev->arp_table_size, - (u32 *)&arp_index, - &iwdev->next_arp_index); - - if (err) - return err; - - memcpy(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)); - ether_addr_copy(iwdev->arp_table[arp_index].mac_addr, mac_addr); - break; - case I40IW_ARP_RESOLVE: - if (arp_index == iwdev->arp_table_size) - return -1; - break; - case I40IW_ARP_DELETE: - if (arp_index == iwdev->arp_table_size) - return -1; - memset(iwdev->arp_table[arp_index].ip_addr, 0, - sizeof(iwdev->arp_table[arp_index].ip_addr)); - eth_zero_addr(iwdev->arp_table[arp_index].mac_addr); - i40iw_free_resource(iwdev, iwdev->allocated_arps, arp_index); - break; - default: - return -1; - } - return arp_index; -} - -/** - * i40iw_wr32 - write 32 bits to hw register - * @hw: hardware information including registers - * @reg: register offset - * @value: vvalue to write to register - */ -inline void i40iw_wr32(struct i40iw_hw *hw, u32 reg, u32 value) -{ - writel(value, hw->hw_addr + reg); -} - -/** - * i40iw_rd32 - read a 32 bit hw register - * @hw: hardware information including registers - * @reg: register offset - * - * Return value of register content - */ -inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg) -{ - return readl(hw->hw_addr + reg); -} - -/** - * i40iw_inetaddr_event - system notifier for ipv4 addr events - * @notfier: not used - * @event: event for notifier - * @ptr: if address - */ -int i40iw_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 net_device *netdev; - struct net_device *upper_dev; - struct i40iw_device *iwdev; - struct i40iw_handler *hdl; - u32 local_ipaddr; - u32 action = I40IW_ARP_ADD; - - hdl = i40iw_find_netdev(event_netdev); - if (!hdl) - return NOTIFY_DONE; - - iwdev = &hdl->device; - if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) - return NOTIFY_DONE; - - netdev = iwdev->ldev->netdev; - upper_dev = netdev_master_upper_dev_get(netdev); - if (netdev != event_netdev) - return NOTIFY_DONE; - - if (upper_dev) { - struct in_device *in; - - rcu_read_lock(); - in = __in_dev_get_rcu(upper_dev); - - local_ipaddr = 0; - if (in) { - struct in_ifaddr *ifa; - - ifa = rcu_dereference(in->ifa_list); - if (ifa) - local_ipaddr = ntohl(ifa->ifa_address); - } - - rcu_read_unlock(); - } else { - local_ipaddr = ntohl(ifa->ifa_address); - } - switch (event) { - case NETDEV_DOWN: - action = I40IW_ARP_DELETE; - /* Fall through */ - case NETDEV_UP: - /* Fall through */ - case NETDEV_CHANGEADDR: - - /* Just skip if no need to handle ARP cache */ - if (!local_ipaddr) - break; - - i40iw_manage_arp_cache(iwdev, - netdev->dev_addr, - &local_ipaddr, - true, - action); - i40iw_if_notify(iwdev, netdev, &local_ipaddr, true, - (action == I40IW_ARP_ADD) ? true : false); - break; - default: - break; - } - return NOTIFY_DONE; -} - -/** - * i40iw_inet6addr_event - system notifier for ipv6 addr events - * @notfier: not used - * @event: event for notifier - * @ptr: if address - */ -int i40iw_inet6addr_event(struct notifier_block *notifier, - unsigned long event, - void *ptr) -{ - struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; - struct net_device *event_netdev = ifa->idev->dev; - struct net_device *netdev; - struct i40iw_device *iwdev; - struct i40iw_handler *hdl; - u32 local_ipaddr6[4]; - u32 action = I40IW_ARP_ADD; - - hdl = i40iw_find_netdev(event_netdev); - if (!hdl) - return NOTIFY_DONE; - - iwdev = &hdl->device; - if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) - return NOTIFY_DONE; - - netdev = iwdev->ldev->netdev; - if (netdev != event_netdev) - return NOTIFY_DONE; - - i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32); - switch (event) { - case NETDEV_DOWN: - action = I40IW_ARP_DELETE; - /* Fall through */ - case NETDEV_UP: - /* Fall through */ - case NETDEV_CHANGEADDR: - i40iw_manage_arp_cache(iwdev, - netdev->dev_addr, - local_ipaddr6, - false, - action); - i40iw_if_notify(iwdev, netdev, local_ipaddr6, false, - (action == I40IW_ARP_ADD) ? true : false); - break; - default: - break; - } - return NOTIFY_DONE; -} - -/** - * i40iw_net_event - system notifier for netevents - * @notfier: not used - * @event: event for notifier - * @ptr: neighbor - */ -int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr) -{ - struct neighbour *neigh = ptr; - struct i40iw_device *iwdev; - struct i40iw_handler *iwhdl; - __be32 *p; - u32 local_ipaddr[4]; - - switch (event) { - case NETEVENT_NEIGH_UPDATE: - iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev); - if (!iwhdl) - return NOTIFY_DONE; - iwdev = &iwhdl->device; - if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) - return NOTIFY_DONE; - p = (__be32 *)neigh->primary_key; - i40iw_copy_ip_ntohl(local_ipaddr, p); - if (neigh->nud_state & NUD_VALID) { - i40iw_manage_arp_cache(iwdev, - neigh->ha, - local_ipaddr, - false, - I40IW_ARP_ADD); - - } else { - i40iw_manage_arp_cache(iwdev, - neigh->ha, - local_ipaddr, - false, - I40IW_ARP_DELETE); - } - break; - default: - break; - } - return NOTIFY_DONE; -} - -/** - * i40iw_netdevice_event - system notifier for netdev events - * @notfier: not used - * @event: event for notifier - * @ptr: netdev - */ -int i40iw_netdevice_event(struct notifier_block *notifier, - unsigned long event, - void *ptr) -{ - struct net_device *event_netdev; - struct net_device *netdev; - struct i40iw_device *iwdev; - struct i40iw_handler *hdl; - - event_netdev = netdev_notifier_info_to_dev(ptr); - - hdl = i40iw_find_netdev(event_netdev); - if (!hdl) - return NOTIFY_DONE; - - iwdev = &hdl->device; - if (iwdev->init_state < RDMA_DEV_REGISTERED || iwdev->closing) - return NOTIFY_DONE; - - netdev = iwdev->ldev->netdev; - if (netdev != event_netdev) - return NOTIFY_DONE; - - iwdev->iw_status = 1; - - switch (event) { - case NETDEV_DOWN: - iwdev->iw_status = 0; - /* Fall through */ - case NETDEV_UP: - i40iw_port_ibevent(iwdev); - break; - default: - break; - } - return NOTIFY_DONE; -} - -/** - * i40iw_get_cqp_request - get cqp struct - * @cqp: device cqp ptr - * @wait: cqp to be used in wait mode - */ -struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait) -{ - struct i40iw_cqp_request *cqp_request = NULL; - unsigned long flags; - - spin_lock_irqsave(&cqp->req_lock, flags); - if (!list_empty(&cqp->cqp_avail_reqs)) { - cqp_request = list_entry(cqp->cqp_avail_reqs.next, - struct i40iw_cqp_request, list); - list_del_init(&cqp_request->list); - } - spin_unlock_irqrestore(&cqp->req_lock, flags); - if (!cqp_request) { - cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC); - if (cqp_request) { - cqp_request->dynamic = true; - INIT_LIST_HEAD(&cqp_request->list); - init_waitqueue_head(&cqp_request->waitq); - } - } - if (!cqp_request) { - i40iw_pr_err("CQP Request Fail: No Memory"); - return NULL; - } - - if (wait) { - atomic_set(&cqp_request->refcount, 2); - cqp_request->waiting = true; - } else { - atomic_set(&cqp_request->refcount, 1); - } - return cqp_request; -} - -/** - * i40iw_free_cqp_request - free cqp request - * @cqp: cqp ptr - * @cqp_request: to be put back in cqp list - */ -void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request) -{ - struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); - unsigned long flags; - - if (cqp_request->dynamic) { - kfree(cqp_request); - } else { - cqp_request->request_done = false; - cqp_request->callback_fcn = NULL; - cqp_request->waiting = false; - - spin_lock_irqsave(&cqp->req_lock, flags); - list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs); - spin_unlock_irqrestore(&cqp->req_lock, flags); - } - wake_up(&iwdev->close_wq); -} - -/** - * i40iw_put_cqp_request - dec ref count and free if 0 - * @cqp: cqp ptr - * @cqp_request: to be put back in cqp list - */ -void i40iw_put_cqp_request(struct i40iw_cqp *cqp, - struct i40iw_cqp_request *cqp_request) -{ - if (atomic_dec_and_test(&cqp_request->refcount)) - i40iw_free_cqp_request(cqp, cqp_request); -} - -/** - * i40iw_free_pending_cqp_request -free pending cqp request objs - * @cqp: cqp ptr - * @cqp_request: to be put back in cqp list - */ -static void i40iw_free_pending_cqp_request(struct i40iw_cqp *cqp, - struct i40iw_cqp_request *cqp_request) -{ - struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); - - if (cqp_request->waiting) { - cqp_request->compl_info.error = true; - cqp_request->request_done = true; - wake_up(&cqp_request->waitq); - } - i40iw_put_cqp_request(cqp, cqp_request); - wait_event_timeout(iwdev->close_wq, - !atomic_read(&cqp_request->refcount), - 1000); -} - -/** - * i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions - * @iwdev: iwarp device - */ -void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev) -{ - struct i40iw_sc_dev *dev = &iwdev->sc_dev; - struct i40iw_cqp *cqp = &iwdev->cqp; - struct i40iw_cqp_request *cqp_request = NULL; - struct cqp_commands_info *pcmdinfo = NULL; - u32 i, pending_work, wqe_idx; - - pending_work = I40IW_RING_WORK_AVAILABLE(cqp->sc_cqp.sq_ring); - wqe_idx = I40IW_RING_GETCURRENT_TAIL(cqp->sc_cqp.sq_ring); - for (i = 0; i < pending_work; i++) { - cqp_request = (struct i40iw_cqp_request *)(unsigned long)cqp->scratch_array[wqe_idx]; - if (cqp_request) - i40iw_free_pending_cqp_request(cqp, cqp_request); - wqe_idx = (wqe_idx + 1) % I40IW_RING_GETSIZE(cqp->sc_cqp.sq_ring); - } - - while (!list_empty(&dev->cqp_cmd_head)) { - pcmdinfo = (struct cqp_commands_info *)i40iw_remove_head(&dev->cqp_cmd_head); - cqp_request = container_of(pcmdinfo, struct i40iw_cqp_request, info); - if (cqp_request) - i40iw_free_pending_cqp_request(cqp, cqp_request); - } -} - -/** - * i40iw_free_qp - callback after destroy cqp completes - * @cqp_request: cqp request for destroy qp - * @num: not used - */ -static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num) -{ - struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param; - struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp; - struct i40iw_device *iwdev; - u32 qp_num = iwqp->ibqp.qp_num; - - iwdev = iwqp->iwdev; - - i40iw_rem_pdusecount(iwqp->iwpd, iwdev); - i40iw_free_qp_resources(iwdev, iwqp, qp_num); - i40iw_rem_devusecount(iwdev); -} - -/** - * i40iw_wait_event - wait for completion - * @iwdev: iwarp device - * @cqp_request: cqp request to wait - */ -static int i40iw_wait_event(struct i40iw_device *iwdev, - struct i40iw_cqp_request *cqp_request) -{ - struct cqp_commands_info *info = &cqp_request->info; - struct i40iw_cqp *iwcqp = &iwdev->cqp; - struct i40iw_cqp_timeout cqp_timeout; - bool cqp_error = false; - int err_code = 0; - memset(&cqp_timeout, 0, sizeof(cqp_timeout)); - cqp_timeout.compl_cqp_cmds = iwdev->sc_dev.cqp_cmd_stats[OP_COMPLETED_COMMANDS]; - do { - if (wait_event_timeout(cqp_request->waitq, - cqp_request->request_done, CQP_COMPL_WAIT_TIME)) - break; - - i40iw_check_cqp_progress(&cqp_timeout, &iwdev->sc_dev); - - if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD) - continue; - - i40iw_pr_err("error cqp command 0x%x timed out", info->cqp_cmd); - err_code = -ETIME; - if (!iwdev->reset) { - iwdev->reset = true; - i40iw_request_reset(iwdev); - } - goto done; - } while (1); - cqp_error = cqp_request->compl_info.error; - if (cqp_error) { - i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n", - info->cqp_cmd, cqp_request->compl_info.maj_err_code, - cqp_request->compl_info.min_err_code); - err_code = -EPROTO; - goto done; - } -done: - i40iw_put_cqp_request(iwcqp, cqp_request); - return err_code; -} - -/** - * i40iw_handle_cqp_op - process cqp command - * @iwdev: iwarp device - * @cqp_request: cqp request to process - */ -enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev, - struct i40iw_cqp_request - *cqp_request) -{ - struct i40iw_sc_dev *dev = &iwdev->sc_dev; - enum i40iw_status_code status; - struct cqp_commands_info *info = &cqp_request->info; - int err_code = 0; - - if (iwdev->reset) { - i40iw_free_cqp_request(&iwdev->cqp, cqp_request); - return I40IW_ERR_CQP_COMPL_ERROR; - } - - status = i40iw_process_cqp_cmd(dev, info); - if (status) { - i40iw_pr_err("error cqp command 0x%x failed\n", info->cqp_cmd); - i40iw_free_cqp_request(&iwdev->cqp, cqp_request); - return status; - } - if (cqp_request->waiting) - err_code = i40iw_wait_event(iwdev, cqp_request); - if (err_code) - status = I40IW_ERR_CQP_COMPL_ERROR; - return status; -} - -/** - * i40iw_add_devusecount - add dev refcount - * @iwdev: dev for refcount - */ -void i40iw_add_devusecount(struct i40iw_device *iwdev) -{ - atomic64_inc(&iwdev->use_count); -} - -/** - * i40iw_rem_devusecount - decrement refcount for dev - * @iwdev: device - */ -void i40iw_rem_devusecount(struct i40iw_device *iwdev) -{ - if (!atomic64_dec_and_test(&iwdev->use_count)) - return; - wake_up(&iwdev->close_wq); -} - -/** - * i40iw_add_pdusecount - add pd refcount - * @iwpd: pd for refcount - */ -void i40iw_add_pdusecount(struct i40iw_pd *iwpd) -{ - atomic_inc(&iwpd->usecount); -} - -/** - * i40iw_rem_pdusecount - decrement refcount for pd and free if 0 - * @iwpd: pd for refcount - * @iwdev: iwarp device - */ -void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev) -{ - if (!atomic_dec_and_test(&iwpd->usecount)) - return; - i40iw_free_resource(iwdev, iwdev->allocated_pds, iwpd->sc_pd.pd_id); -} - -/** - * i40iw_add_ref - add refcount for qp - * @ibqp: iqarp qp - */ -void i40iw_add_ref(struct ib_qp *ibqp) -{ - struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp; - - atomic_inc(&iwqp->refcount); -} - -/** - * i40iw_rem_ref - rem refcount for qp and free if 0 - * @ibqp: iqarp qp - */ -void i40iw_rem_ref(struct ib_qp *ibqp) -{ - struct i40iw_qp *iwqp; - enum i40iw_status_code status; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_device *iwdev; - u32 qp_num; - unsigned long flags; - - iwqp = to_iwqp(ibqp); - iwdev = iwqp->iwdev; - spin_lock_irqsave(&iwdev->qptable_lock, flags); - if (!atomic_dec_and_test(&iwqp->refcount)) { - spin_unlock_irqrestore(&iwdev->qptable_lock, flags); - return; - } - - qp_num = iwqp->ibqp.qp_num; - iwdev->qp_table[qp_num] = NULL; - spin_unlock_irqrestore(&iwdev->qptable_lock, flags); - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); - if (!cqp_request) - return; - - cqp_request->callback_fcn = i40iw_free_qp; - cqp_request->param = (void *)&iwqp->sc_qp; - cqp_info = &cqp_request->info; - cqp_info->cqp_cmd = OP_QP_DESTROY; - cqp_info->post_sq = 1; - cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp; - cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; - cqp_info->in.u.qp_destroy.remove_hash_idx = true; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (!status) - return; - - i40iw_rem_pdusecount(iwqp->iwpd, iwdev); - i40iw_free_qp_resources(iwdev, iwqp, qp_num); - i40iw_rem_devusecount(iwdev); -} - -/** - * i40iw_get_qp - get qp address - * @device: iwarp device - * @qpn: qp number - */ -struct ib_qp *i40iw_get_qp(struct ib_device *device, int qpn) -{ - struct i40iw_device *iwdev = to_iwdev(device); - - if ((qpn < IW_FIRST_QPN) || (qpn >= iwdev->max_qp)) - return NULL; - - return &iwdev->qp_table[qpn]->ibqp; -} - -/** - * i40iw_debug_buf - print debug msg and buffer is mask set - * @dev: hardware control device structure - * @mask: mask to compare if to print debug buffer - * @buf: points buffer addr - * @size: saize of buffer to print - */ -void i40iw_debug_buf(struct i40iw_sc_dev *dev, - enum i40iw_debug_flag mask, - char *desc, - u64 *buf, - u32 size) -{ - u32 i; - - if (!(dev->debug_mask & mask)) - return; - i40iw_debug(dev, mask, "%s\n", desc); - i40iw_debug(dev, mask, "starting address virt=%p phy=%llxh\n", buf, - (unsigned long long)virt_to_phys(buf)); - - for (i = 0; i < size; i += 8) - i40iw_debug(dev, mask, "index %03d val: %016llx\n", i, buf[i / 8]); -} - -/** - * i40iw_get_hw_addr - return hw addr - * @par: points to shared dev - */ -u8 __iomem *i40iw_get_hw_addr(void *par) -{ - struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)par; - - return dev->hw->hw_addr; -} - -/** - * i40iw_remove_head - return head entry and remove from list - * @list: list for entry - */ -void *i40iw_remove_head(struct list_head *list) -{ - struct list_head *entry; - - if (list_empty(list)) - return NULL; - - entry = (void *)list->next; - list_del(entry); - return (void *)entry; -} - -/** - * i40iw_allocate_dma_mem - Memory alloc helper fn - * @hw: pointer to the HW structure - * @mem: ptr to mem struct to fill out - * @size: size of memory requested - * @alignment: what to align the allocation to - */ -enum i40iw_status_code i40iw_allocate_dma_mem(struct i40iw_hw *hw, - struct i40iw_dma_mem *mem, - u64 size, - u32 alignment) -{ - struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context; - - if (!mem) - return I40IW_ERR_PARAM; - mem->size = ALIGN(size, alignment); - mem->va = dma_alloc_coherent(&pcidev->dev, mem->size, - (dma_addr_t *)&mem->pa, GFP_KERNEL); - if (!mem->va) - return I40IW_ERR_NO_MEMORY; - return 0; -} - -/** - * i40iw_free_dma_mem - Memory free helper fn - * @hw: pointer to the HW structure - * @mem: ptr to mem struct to free - */ -void i40iw_free_dma_mem(struct i40iw_hw *hw, struct i40iw_dma_mem *mem) -{ - struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context; - - if (!mem || !mem->va) - return; - - dma_free_coherent(&pcidev->dev, mem->size, - mem->va, (dma_addr_t)mem->pa); - mem->va = NULL; -} - -/** - * i40iw_allocate_virt_mem - virtual memory alloc helper fn - * @hw: pointer to the HW structure - * @mem: ptr to mem struct to fill out - * @size: size of memory requested - */ -enum i40iw_status_code i40iw_allocate_virt_mem(struct i40iw_hw *hw, - struct i40iw_virt_mem *mem, - u32 size) -{ - if (!mem) - return I40IW_ERR_PARAM; - - mem->size = size; - mem->va = kzalloc(size, GFP_KERNEL); - - if (mem->va) - return 0; - else - return I40IW_ERR_NO_MEMORY; -} - -/** - * i40iw_free_virt_mem - virtual memory free helper fn - * @hw: pointer to the HW structure - * @mem: ptr to mem struct to free - */ -enum i40iw_status_code i40iw_free_virt_mem(struct i40iw_hw *hw, - struct i40iw_virt_mem *mem) -{ - if (!mem) - return I40IW_ERR_PARAM; - /* - * mem->va points to the parent of mem, so both mem and mem->va - * can not be touched once mem->va is freed - */ - kfree(mem->va); - return 0; -} - -/** - * i40iw_cqp_sds_cmd - create cqp command for sd - * @dev: hardware control device structure - * @sd_info: information for sd cqp - * - */ -enum i40iw_status_code i40iw_cqp_sds_cmd(struct i40iw_sc_dev *dev, - struct i40iw_update_sds_info *sdinfo) -{ - enum i40iw_status_code status; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - cqp_info = &cqp_request->info; - memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo, - sizeof(cqp_info->in.u.update_pe_sds.info)); - cqp_info->cqp_cmd = OP_UPDATE_PE_SDS; - cqp_info->post_sq = 1; - cqp_info->in.u.update_pe_sds.dev = dev; - cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP Update SD's fail"); - return status; -} - -/** - * i40iw_qp_suspend_resume - cqp command for suspend/resume - * @dev: hardware control device structure - * @qp: hardware control qp - * @suspend: flag if suspend or resume - */ -void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp, bool suspend) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - struct i40iw_cqp_request *cqp_request; - struct i40iw_sc_cqp *cqp = dev->cqp; - struct cqp_commands_info *cqp_info; - enum i40iw_status_code status; - - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); - if (!cqp_request) - return; - - cqp_info = &cqp_request->info; - cqp_info->cqp_cmd = (suspend) ? OP_SUSPEND : OP_RESUME; - cqp_info->in.u.suspend_resume.cqp = cqp; - cqp_info->in.u.suspend_resume.qp = qp; - cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP QP Suspend/Resume fail"); -} - -/** - * i40iw_term_modify_qp - modify qp for term message - * @qp: hardware control qp - * @next_state: qp's next state - * @term: terminate code - * @term_len: length - */ -void i40iw_term_modify_qp(struct i40iw_sc_qp *qp, u8 next_state, u8 term, u8 term_len) -{ - struct i40iw_qp *iwqp; - - iwqp = (struct i40iw_qp *)qp->back_qp; - i40iw_next_iw_state(iwqp, next_state, 0, term, term_len); -}; - -/** - * i40iw_terminate_done - after terminate is completed - * @qp: hardware control qp - * @timeout_occurred: indicates if terminate timer expired - */ -void i40iw_terminate_done(struct i40iw_sc_qp *qp, int timeout_occurred) -{ - struct i40iw_qp *iwqp; - u32 next_iwarp_state = I40IW_QP_STATE_ERROR; - u8 hte = 0; - bool first_time; - unsigned long flags; - - iwqp = (struct i40iw_qp *)qp->back_qp; - spin_lock_irqsave(&iwqp->lock, flags); - if (iwqp->hte_added) { - iwqp->hte_added = 0; - hte = 1; - } - first_time = !(qp->term_flags & I40IW_TERM_DONE); - qp->term_flags |= I40IW_TERM_DONE; - spin_unlock_irqrestore(&iwqp->lock, flags); - if (first_time) { - if (!timeout_occurred) - i40iw_terminate_del_timer(qp); - else - next_iwarp_state = I40IW_QP_STATE_CLOSING; - - i40iw_next_iw_state(iwqp, next_iwarp_state, hte, 0, 0); - i40iw_cm_disconn(iwqp); - } -} - -/** - * i40iw_terminate_imeout - timeout happened - * @context: points to iwarp qp - */ -static void i40iw_terminate_timeout(struct timer_list *t) -{ - struct i40iw_qp *iwqp = from_timer(iwqp, t, terminate_timer); - struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp; - - i40iw_terminate_done(qp, 1); - i40iw_rem_ref(&iwqp->ibqp); -} - -/** - * i40iw_terminate_start_timer - start terminate timeout - * @qp: hardware control qp - */ -void i40iw_terminate_start_timer(struct i40iw_sc_qp *qp) -{ - struct i40iw_qp *iwqp; - - iwqp = (struct i40iw_qp *)qp->back_qp; - i40iw_add_ref(&iwqp->ibqp); - timer_setup(&iwqp->terminate_timer, i40iw_terminate_timeout, 0); - iwqp->terminate_timer.expires = jiffies + HZ; - add_timer(&iwqp->terminate_timer); -} - -/** - * i40iw_terminate_del_timer - delete terminate timeout - * @qp: hardware control qp - */ -void i40iw_terminate_del_timer(struct i40iw_sc_qp *qp) -{ - struct i40iw_qp *iwqp; - - iwqp = (struct i40iw_qp *)qp->back_qp; - if (del_timer(&iwqp->terminate_timer)) - i40iw_rem_ref(&iwqp->ibqp); -} - -/** - * i40iw_cqp_generic_worker - generic worker for cqp - * @work: work pointer - */ -static void i40iw_cqp_generic_worker(struct work_struct *work) -{ - struct i40iw_virtchnl_work_info *work_info = - &((struct virtchnl_work *)work)->work_info; - - if (work_info->worker_vf_dev) - work_info->callback_fcn(work_info->worker_vf_dev); -} - -/** - * i40iw_cqp_spawn_worker - spawn worket thread - * @iwdev: device struct pointer - * @work_info: work request info - * @iw_vf_idx: virtual function index - */ -void i40iw_cqp_spawn_worker(struct i40iw_sc_dev *dev, - struct i40iw_virtchnl_work_info *work_info, - u32 iw_vf_idx) -{ - struct virtchnl_work *work; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - work = &iwdev->virtchnl_w[iw_vf_idx]; - memcpy(&work->work_info, work_info, sizeof(*work_info)); - INIT_WORK(&work->work, i40iw_cqp_generic_worker); - queue_work(iwdev->virtchnl_wq, &work->work); -} - -/** - * i40iw_cqp_manage_hmc_fcn_worker - - * @work: work pointer for hmc info - */ -static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct *work) -{ - struct i40iw_cqp_request *cqp_request = - ((struct virtchnl_work *)work)->cqp_request; - struct i40iw_ccq_cqe_info ccq_cqe_info; - struct i40iw_hmc_fcn_info *hmcfcninfo = - &cqp_request->info.in.u.manage_hmc_pm.info; - struct i40iw_device *iwdev = - (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->back_dev; - - ccq_cqe_info.cqp = NULL; - ccq_cqe_info.maj_err_code = cqp_request->compl_info.maj_err_code; - ccq_cqe_info.min_err_code = cqp_request->compl_info.min_err_code; - ccq_cqe_info.op_code = cqp_request->compl_info.op_code; - ccq_cqe_info.op_ret_val = cqp_request->compl_info.op_ret_val; - ccq_cqe_info.scratch = 0; - ccq_cqe_info.error = cqp_request->compl_info.error; - hmcfcninfo->callback_fcn(cqp_request->info.in.u.manage_hmc_pm.dev, - hmcfcninfo->cqp_callback_param, &ccq_cqe_info); - i40iw_put_cqp_request(&iwdev->cqp, cqp_request); -} - -/** - * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion - * @cqp_request: cqp request info struct for hmc fun - * @unused: unused param of callback - */ -static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request *cqp_request, - u32 unused) -{ - struct virtchnl_work *work; - struct i40iw_hmc_fcn_info *hmcfcninfo = - &cqp_request->info.in.u.manage_hmc_pm.info; - struct i40iw_device *iwdev = - (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev-> - back_dev; - - if (hmcfcninfo && hmcfcninfo->callback_fcn) { - i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s1\n", __func__); - atomic_inc(&cqp_request->refcount); - work = &iwdev->virtchnl_w[hmcfcninfo->iw_vf_idx]; - work->cqp_request = cqp_request; - INIT_WORK(&work->work, i40iw_cqp_manage_hmc_fcn_worker); - queue_work(iwdev->virtchnl_wq, &work->work); - i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s2\n", __func__); - } else { - i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s: Something wrong\n", __func__); - } -} - -/** - * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc - * @dev: hardware control device structure - * @hmcfcninfo: info for hmc - */ -enum i40iw_status_code i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev *dev, - struct i40iw_hmc_fcn_info *hmcfcninfo) -{ - enum i40iw_status_code status; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s\n", __func__); - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - cqp_info = &cqp_request->info; - cqp_request->callback_fcn = i40iw_cqp_manage_hmc_fcn_callback; - cqp_request->param = hmcfcninfo; - memcpy(&cqp_info->in.u.manage_hmc_pm.info, hmcfcninfo, - sizeof(*hmcfcninfo)); - cqp_info->in.u.manage_hmc_pm.dev = dev; - cqp_info->cqp_cmd = OP_MANAGE_HMC_PM_FUNC_TABLE; - cqp_info->post_sq = 1; - cqp_info->in.u.manage_hmc_pm.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP Manage HMC fail"); - return status; -} - -/** - * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm - * @iwdev: function device struct - * @values_mem: buffer for fpm - * @hmc_fn_id: function id for fpm - */ -enum i40iw_status_code i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev *dev, - struct i40iw_dma_mem *values_mem, - u8 hmc_fn_id) -{ - enum i40iw_status_code status; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - cqp_info = &cqp_request->info; - cqp_request->param = NULL; - cqp_info->in.u.query_fpm_values.cqp = dev->cqp; - cqp_info->in.u.query_fpm_values.fpm_values_pa = values_mem->pa; - cqp_info->in.u.query_fpm_values.fpm_values_va = values_mem->va; - cqp_info->in.u.query_fpm_values.hmc_fn_id = hmc_fn_id; - cqp_info->cqp_cmd = OP_QUERY_FPM_VALUES; - cqp_info->post_sq = 1; - cqp_info->in.u.query_fpm_values.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP Query FPM fail"); - return status; -} - -/** - * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw - * @dev: hardware control device structure - * @values_mem: buffer with fpm values - * @hmc_fn_id: function id for fpm - */ -enum i40iw_status_code i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev *dev, - struct i40iw_dma_mem *values_mem, - u8 hmc_fn_id) -{ - enum i40iw_status_code status; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - cqp_info = &cqp_request->info; - cqp_request->param = NULL; - cqp_info->in.u.commit_fpm_values.cqp = dev->cqp; - cqp_info->in.u.commit_fpm_values.fpm_values_pa = values_mem->pa; - cqp_info->in.u.commit_fpm_values.fpm_values_va = values_mem->va; - cqp_info->in.u.commit_fpm_values.hmc_fn_id = hmc_fn_id; - cqp_info->cqp_cmd = OP_COMMIT_FPM_VALUES; - cqp_info->post_sq = 1; - cqp_info->in.u.commit_fpm_values.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP Commit FPM fail"); - return status; -} - -/** - * i40iw_vf_wait_vchnl_resp - wait for channel msg - * @iwdev: function's device struct - */ -enum i40iw_status_code i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev *dev) -{ - struct i40iw_device *iwdev = dev->back_dev; - int timeout_ret; - - i40iw_debug(dev, I40IW_DEBUG_VIRT, "%s[%u] dev %p, iwdev %p\n", - __func__, __LINE__, dev, iwdev); - - atomic_set(&iwdev->vchnl_msgs, 2); - timeout_ret = wait_event_timeout(iwdev->vchnl_waitq, - (atomic_read(&iwdev->vchnl_msgs) == 1), - I40IW_VCHNL_EVENT_TIMEOUT); - atomic_dec(&iwdev->vchnl_msgs); - if (!timeout_ret) { - i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret); - atomic_set(&iwdev->vchnl_msgs, 0); - dev->vchnl_up = false; - return I40IW_ERR_TIMEOUT; - } - wake_up(&dev->vf_reqs); - return 0; -} - -/** - * i40iw_cqp_cq_create_cmd - create a cq for the cqp - * @dev: device pointer - * @cq: pointer to created cq - */ -enum i40iw_status_code i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev *dev, - struct i40iw_sc_cq *cq) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - struct i40iw_cqp *iwcqp = &iwdev->cqp; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - enum i40iw_status_code status; - - cqp_request = i40iw_get_cqp_request(iwcqp, true); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - - cqp_info = &cqp_request->info; - cqp_info->cqp_cmd = OP_CQ_CREATE; - cqp_info->post_sq = 1; - cqp_info->in.u.cq_create.cq = cq; - cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP Create QP fail"); - - return status; -} - -/** - * i40iw_cqp_qp_create_cmd - create a qp for the cqp - * @dev: device pointer - * @qp: pointer to created qp - */ -enum i40iw_status_code i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev *dev, - struct i40iw_sc_qp *qp) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - struct i40iw_cqp *iwcqp = &iwdev->cqp; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - struct i40iw_create_qp_info *qp_info; - enum i40iw_status_code status; - - cqp_request = i40iw_get_cqp_request(iwcqp, true); - if (!cqp_request) - return I40IW_ERR_NO_MEMORY; - - cqp_info = &cqp_request->info; - qp_info = &cqp_request->info.in.u.qp_create.info; - - memset(qp_info, 0, sizeof(*qp_info)); - - qp_info->cq_num_valid = true; - qp_info->next_iwarp_state = I40IW_QP_STATE_RTS; - - cqp_info->cqp_cmd = OP_QP_CREATE; - cqp_info->post_sq = 1; - cqp_info->in.u.qp_create.qp = qp; - cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP-OP QP create fail"); - return status; -} - -/** - * i40iw_cqp_cq_destroy_cmd - destroy the cqp cq - * @dev: device pointer - * @cq: pointer to cq - */ -void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_cq *cq) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - i40iw_cq_wq_destroy(iwdev, cq); -} - -/** - * i40iw_cqp_qp_destroy_cmd - destroy the cqp - * @dev: device pointer - * @qp: pointer to qp - */ -void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - struct i40iw_cqp *iwcqp = &iwdev->cqp; - struct i40iw_cqp_request *cqp_request; - struct cqp_commands_info *cqp_info; - enum i40iw_status_code status; - - cqp_request = i40iw_get_cqp_request(iwcqp, true); - if (!cqp_request) - return; - - cqp_info = &cqp_request->info; - memset(cqp_info, 0, sizeof(*cqp_info)); - - cqp_info->cqp_cmd = OP_QP_DESTROY; - cqp_info->post_sq = 1; - cqp_info->in.u.qp_destroy.qp = qp; - cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; - cqp_info->in.u.qp_destroy.remove_hash_idx = true; - status = i40iw_handle_cqp_op(iwdev, cqp_request); - if (status) - i40iw_pr_err("CQP QP_DESTROY fail"); -} - - -/** - * i40iw_ieq_mpa_crc_ae - generate AE for crc error - * @dev: hardware control device structure - * @qp: hardware control qp - */ -void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp) -{ - struct i40iw_gen_ae_info info; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - i40iw_debug(dev, I40IW_DEBUG_AEQ, "%s entered\n", __func__); - info.ae_code = I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR; - info.ae_source = I40IW_AE_SOURCE_RQ; - i40iw_gen_ae(iwdev, qp, &info, false); -} - -/** - * i40iw_init_hash_desc - initialize hash for crc calculation - * @desc: cryption type - */ -enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc) -{ - struct crypto_shash *tfm; - struct shash_desc *tdesc; - - tfm = crypto_alloc_shash("crc32c", 0, 0); - if (IS_ERR(tfm)) - return I40IW_ERR_MPA_CRC; - - tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm), - GFP_KERNEL); - if (!tdesc) { - crypto_free_shash(tfm); - return I40IW_ERR_MPA_CRC; - } - tdesc->tfm = tfm; - *desc = tdesc; - - return 0; -} - -/** - * i40iw_free_hash_desc - free hash desc - * @desc: to be freed - */ -void i40iw_free_hash_desc(struct shash_desc *desc) -{ - if (desc) { - crypto_free_shash(desc->tfm); - kfree(desc); - } -} - -/** - * i40iw_alloc_query_fpm_buf - allocate buffer for fpm - * @dev: hardware control device structure - * @mem: buffer ptr for fpm to be allocated - * @return: memory allocation status - */ -enum i40iw_status_code i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev *dev, - struct i40iw_dma_mem *mem) -{ - enum i40iw_status_code status; - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - - status = i40iw_obj_aligned_mem(iwdev, mem, I40IW_QUERY_FPM_BUF_SIZE, - I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK); - return status; -} - -/** - * i40iw_ieq_check_mpacrc - check if mpa crc is OK - * @desc: desc for hash - * @addr: address of buffer for crc - * @length: length of buffer - * @value: value to be compared - */ -enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc, - void *addr, - u32 length, - u32 value) -{ - u32 crc = 0; - int ret; - enum i40iw_status_code ret_code = 0; - - crypto_shash_init(desc); - ret = crypto_shash_update(desc, addr, length); - if (!ret) - crypto_shash_final(desc, (u8 *)&crc); - if (crc != value) { - i40iw_pr_err("mpa crc check fail\n"); - ret_code = I40IW_ERR_MPA_CRC; - } - return ret_code; -} - -/** - * i40iw_ieq_get_qp - get qp based on quad in puda buffer - * @dev: hardware control device structure - * @buf: receive puda buffer on exception q - */ -struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev, - struct i40iw_puda_buf *buf) -{ - struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; - struct i40iw_qp *iwqp; - struct i40iw_cm_node *cm_node; - u32 loc_addr[4], rem_addr[4]; - u16 loc_port, rem_port; - struct ipv6hdr *ip6h; - struct iphdr *iph = (struct iphdr *)buf->iph; - struct tcphdr *tcph = (struct tcphdr *)buf->tcph; - - if (iph->version == 4) { - memset(loc_addr, 0, sizeof(loc_addr)); - loc_addr[0] = ntohl(iph->daddr); - memset(rem_addr, 0, sizeof(rem_addr)); - rem_addr[0] = ntohl(iph->saddr); - } else { - ip6h = (struct ipv6hdr *)buf->iph; - i40iw_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32); - i40iw_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32); - } - loc_port = ntohs(tcph->dest); - rem_port = ntohs(tcph->source); - - cm_node = i40iw_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port, - loc_addr, false, true); - if (!cm_node) - return NULL; - iwqp = cm_node->iwqp; - return &iwqp->sc_qp; -} - -/** - * i40iw_ieq_update_tcpip_info - update tcpip in the buffer - * @buf: puda to update - * @length: length of buffer - * @seqnum: seq number for tcp - */ -void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, u32 seqnum) -{ - struct tcphdr *tcph; - struct iphdr *iph; - u16 iphlen; - u16 packetsize; - u8 *addr = (u8 *)buf->mem.va; - - iphlen = (buf->ipv4) ? 20 : 40; - iph = (struct iphdr *)(addr + buf->maclen); - tcph = (struct tcphdr *)(addr + buf->maclen + iphlen); - packetsize = length + buf->tcphlen + iphlen; - - iph->tot_len = htons(packetsize); - tcph->seq = htonl(seqnum); -} - -/** - * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer - * @info: to get information - * @buf: puda buffer - */ -enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info, - struct i40iw_puda_buf *buf) -{ - struct iphdr *iph; - struct ipv6hdr *ip6h; - struct tcphdr *tcph; - u16 iphlen; - u16 pkt_len; - u8 *mem = (u8 *)buf->mem.va; - struct ethhdr *ethh = (struct ethhdr *)buf->mem.va; - - if (ethh->h_proto == htons(0x8100)) { - info->vlan_valid = true; - buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) & VLAN_VID_MASK; - } - buf->maclen = (info->vlan_valid) ? 18 : 14; - iphlen = (info->l3proto) ? 40 : 20; - buf->ipv4 = (info->l3proto) ? false : true; - buf->iph = mem + buf->maclen; - iph = (struct iphdr *)buf->iph; - - buf->tcph = buf->iph + iphlen; - tcph = (struct tcphdr *)buf->tcph; - - if (buf->ipv4) { - pkt_len = ntohs(iph->tot_len); - } else { - ip6h = (struct ipv6hdr *)buf->iph; - pkt_len = ntohs(ip6h->payload_len) + iphlen; - } - - buf->totallen = pkt_len + buf->maclen; - - if (info->payload_len < buf->totallen) { - i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n", - info->payload_len, buf->totallen); - return I40IW_ERR_INVALID_SIZE; - } - - buf->tcphlen = (tcph->doff) << 2; - buf->datalen = pkt_len - iphlen - buf->tcphlen; - buf->data = (buf->datalen) ? buf->tcph + buf->tcphlen : NULL; - buf->hdrlen = buf->maclen + iphlen + buf->tcphlen; - buf->seqnum = ntohl(tcph->seq); - return 0; -} - -/** - * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats - * @vsi: pointer to the vsi structure - */ -static void i40iw_hw_stats_timeout(struct timer_list *t) -{ - struct i40iw_vsi_pestat *pf_devstat = from_timer(pf_devstat, t, - stats_timer); - struct i40iw_sc_vsi *sc_vsi = pf_devstat->vsi; - struct i40iw_sc_dev *pf_dev = sc_vsi->dev; - struct i40iw_vsi_pestat *vf_devstat = NULL; - u16 iw_vf_idx; - unsigned long flags; - - /*PF*/ - i40iw_hw_stats_read_all(pf_devstat, &pf_devstat->hw_stats); - - for (iw_vf_idx = 0; iw_vf_idx < I40IW_MAX_PE_ENABLED_VF_COUNT; iw_vf_idx++) { - spin_lock_irqsave(&pf_devstat->lock, flags); - if (pf_dev->vf_dev[iw_vf_idx]) { - if (pf_dev->vf_dev[iw_vf_idx]->stats_initialized) { - vf_devstat = &pf_dev->vf_dev[iw_vf_idx]->pestat; - i40iw_hw_stats_read_all(vf_devstat, &vf_devstat->hw_stats); - } - } - spin_unlock_irqrestore(&pf_devstat->lock, flags); - } - - mod_timer(&pf_devstat->stats_timer, - jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); -} - -/** - * i40iw_hw_stats_start_timer - Start periodic stats timer - * @vsi: pointer to the vsi structure - */ -void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi *vsi) -{ - struct i40iw_vsi_pestat *devstat = vsi->pestat; - - timer_setup(&devstat->stats_timer, i40iw_hw_stats_timeout, 0); - mod_timer(&devstat->stats_timer, - jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); -} - -/** - * i40iw_hw_stats_stop_timer - Delete periodic stats timer - * @vsi: pointer to the vsi structure - */ -void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi *vsi) -{ - struct i40iw_vsi_pestat *devstat = vsi->pestat; - - del_timer_sync(&devstat->stats_timer); -} |