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authorParav Pandit <parav.pandit@emulex.com>2012-03-21 04:09:06 +0530
committerRoland Dreier <roland@purestorage.com>2012-05-08 11:17:47 -0700
commitfe2caefcdf5869f308c102e3d64d40683bfad711 (patch)
tree897e66d7aad31183fec317c4edba4f72f8d98e08
parentbe2net: Add functionality to support RoCE driver (diff)
downloadlinux-dev-fe2caefcdf5869f308c102e3d64d40683bfad711.tar.xz
linux-dev-fe2caefcdf5869f308c102e3d64d40683bfad711.zip
RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter
Signed-off-by: Parav Pandit <parav.pandit@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r--drivers/infiniband/Kconfig1
-rw-r--r--drivers/infiniband/Makefile1
-rw-r--r--drivers/infiniband/hw/ocrdma/Kconfig8
-rw-r--r--drivers/infiniband/hw/ocrdma/Makefile5
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma.h392
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_abi.h134
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_ah.c172
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_ah.h42
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_hw.c2640
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_hw.h132
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_main.c558
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_sli.h1672
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_verbs.c2542
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_verbs.h94
14 files changed, 8393 insertions, 0 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index eb0add311dc8..a0f29c1d03bc 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -51,6 +51,7 @@ source "drivers/infiniband/hw/cxgb3/Kconfig"
source "drivers/infiniband/hw/cxgb4/Kconfig"
source "drivers/infiniband/hw/mlx4/Kconfig"
source "drivers/infiniband/hw/nes/Kconfig"
+source "drivers/infiniband/hw/ocrdma/Kconfig"
source "drivers/infiniband/ulp/ipoib/Kconfig"
diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile
index a3b2d8eac86e..bf846a14b9d3 100644
--- a/drivers/infiniband/Makefile
+++ b/drivers/infiniband/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/
obj-$(CONFIG_INFINIBAND_CXGB4) += hw/cxgb4/
obj-$(CONFIG_MLX4_INFINIBAND) += hw/mlx4/
obj-$(CONFIG_INFINIBAND_NES) += hw/nes/
+obj-$(CONFIG_INFINIBAND_OCRDMA) += hw/ocrdma/
obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/
obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/
obj-$(CONFIG_INFINIBAND_SRPT) += ulp/srpt/
diff --git a/drivers/infiniband/hw/ocrdma/Kconfig b/drivers/infiniband/hw/ocrdma/Kconfig
new file mode 100644
index 000000000000..cf993424e2fb
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/Kconfig
@@ -0,0 +1,8 @@
+config INFINIBAND_OCRDMA
+ tristate "Emulex One Connect HCA support"
+ depends on ETHERNET && NETDEVICES && PCI
+ select NET_VENDOR_EMULEX
+ select BE2NET
+ ---help---
+ This driver provides low-level InfiniBand over Ethernet
+ support for Emulex One Connect host channel adapters (HCAs).
diff --git a/drivers/infiniband/hw/ocrdma/Makefile b/drivers/infiniband/hw/ocrdma/Makefile
new file mode 100644
index 000000000000..06a5bed12e43
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/Makefile
@@ -0,0 +1,5 @@
+ccflags-y := -Idrivers/net/ethernet/emulex/benet
+
+obj-$(CONFIG_INFINIBAND_OCRDMA) += ocrdma.o
+
+ocrdma-y := ocrdma_main.o ocrdma_verbs.o ocrdma_hw.o ocrdma_ah.o
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
new file mode 100644
index 000000000000..d7a44b812dfc
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -0,0 +1,392 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_H__
+#define __OCRDMA_H__
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+
+#include <be_roce.h>
+#include "ocrdma_sli.h"
+
+#define OCRDMA_ROCE_DEV_VERSION "1.0.0"
+#define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA"
+
+#define ocrdma_err(format, arg...) printk(KERN_ERR format, ##arg)
+
+#define OCRDMA_MAX_AH 512
+
+#define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
+
+struct ocrdma_dev_attr {
+ u8 fw_ver[32];
+ u32 vendor_id;
+ u32 device_id;
+ u16 max_pd;
+ u16 max_cq;
+ u16 max_cqe;
+ u16 max_qp;
+ u16 max_wqe;
+ u16 max_rqe;
+ u32 max_inline_data;
+ int max_send_sge;
+ int max_recv_sge;
+ int max_mr;
+ u64 max_mr_size;
+ u32 max_num_mr_pbl;
+ int max_fmr;
+ int max_map_per_fmr;
+ int max_pages_per_frmr;
+ u16 max_ord_per_qp;
+ u16 max_ird_per_qp;
+
+ int device_cap_flags;
+ u8 cq_overflow_detect;
+ u8 srq_supported;
+
+ u32 wqe_size;
+ u32 rqe_size;
+ u32 ird_page_size;
+ u8 local_ca_ack_delay;
+ u8 ird;
+ u8 num_ird_pages;
+};
+
+struct ocrdma_pbl {
+ void *va;
+ dma_addr_t pa;
+};
+
+struct ocrdma_queue_info {
+ void *va;
+ dma_addr_t dma;
+ u32 size;
+ u16 len;
+ u16 entry_size; /* Size of an element in the queue */
+ u16 id; /* qid, where to ring the doorbell. */
+ u16 head, tail;
+ bool created;
+ atomic_t used; /* Number of valid elements in the queue */
+};
+
+struct ocrdma_eq {
+ struct ocrdma_queue_info q;
+ u32 vector;
+ int cq_cnt;
+ struct ocrdma_dev *dev;
+ char irq_name[32];
+};
+
+struct ocrdma_mq {
+ struct ocrdma_queue_info sq;
+ struct ocrdma_queue_info cq;
+ bool rearm_cq;
+};
+
+struct mqe_ctx {
+ struct mutex lock; /* for serializing mailbox commands on MQ */
+ wait_queue_head_t cmd_wait;
+ u32 tag;
+ u16 cqe_status;
+ u16 ext_status;
+ bool cmd_done;
+};
+
+struct ocrdma_dev {
+ struct ib_device ibdev;
+ struct ocrdma_dev_attr attr;
+
+ struct mutex dev_lock; /* provides syncronise access to device data */
+ spinlock_t flush_q_lock ____cacheline_aligned;
+
+ struct ocrdma_cq **cq_tbl;
+ struct ocrdma_qp **qp_tbl;
+
+ struct ocrdma_eq meq;
+ struct ocrdma_eq *qp_eq_tbl;
+ int eq_cnt;
+ u16 base_eqid;
+ u16 max_eq;
+
+ union ib_gid *sgid_tbl;
+ /* provided synchronization to sgid table for
+ * updating gid entries triggered by notifier.
+ */
+ spinlock_t sgid_lock;
+
+ int gsi_qp_created;
+ struct ocrdma_cq *gsi_sqcq;
+ struct ocrdma_cq *gsi_rqcq;
+
+ struct {
+ struct ocrdma_av *va;
+ dma_addr_t pa;
+ u32 size;
+ u32 num_ah;
+ /* provide synchronization for av
+ * entry allocations.
+ */
+ spinlock_t lock;
+ u32 ahid;
+ struct ocrdma_pbl pbl;
+ } av_tbl;
+
+ void *mbx_cmd;
+ struct ocrdma_mq mq;
+ struct mqe_ctx mqe_ctx;
+
+ struct be_dev_info nic_info;
+
+ struct list_head entry;
+ int id;
+};
+
+struct ocrdma_cq {
+ struct ib_cq ibcq;
+ struct ocrdma_dev *dev;
+ struct ocrdma_cqe *va;
+ u32 phase;
+ u32 getp; /* pointer to pending wrs to
+ * return to stack, wrap arounds
+ * at max_hw_cqe
+ */
+ u32 max_hw_cqe;
+ bool phase_change;
+ bool armed, solicited;
+ bool arm_needed;
+
+ spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
+ * to cq polling
+ */
+ /* syncronizes cq completion handler invoked from multiple context */
+ spinlock_t comp_handler_lock ____cacheline_aligned;
+ u16 id;
+ u16 eqn;
+
+ struct ocrdma_ucontext *ucontext;
+ dma_addr_t pa;
+ u32 len;
+ atomic_t use_cnt;
+
+ /* head of all qp's sq and rq for which cqes need to be flushed
+ * by the software.
+ */
+ struct list_head sq_head, rq_head;
+};
+
+struct ocrdma_pd {
+ struct ib_pd ibpd;
+ struct ocrdma_dev *dev;
+ struct ocrdma_ucontext *uctx;
+ atomic_t use_cnt;
+ u32 id;
+ int num_dpp_qp;
+ u32 dpp_page;
+ bool dpp_enabled;
+};
+
+struct ocrdma_ah {
+ struct ib_ah ibah;
+ struct ocrdma_dev *dev;
+ struct ocrdma_av *av;
+ u16 sgid_index;
+ u32 id;
+};
+
+struct ocrdma_qp_hwq_info {
+ u8 *va; /* virtual address */
+ u32 max_sges;
+ u32 head, tail;
+ u32 entry_size;
+ u32 max_cnt;
+ u32 max_wqe_idx;
+ u32 free_delta;
+ u16 dbid; /* qid, where to ring the doorbell. */
+ u32 len;
+ dma_addr_t pa;
+};
+
+struct ocrdma_srq {
+ struct ib_srq ibsrq;
+ struct ocrdma_dev *dev;
+ u8 __iomem *db;
+ /* provide synchronization to multiple context(s) posting rqe */
+ spinlock_t q_lock ____cacheline_aligned;
+
+ struct ocrdma_qp_hwq_info rq;
+ struct ocrdma_pd *pd;
+ atomic_t use_cnt;
+ u32 id;
+ u64 *rqe_wr_id_tbl;
+ u32 *idx_bit_fields;
+ u32 bit_fields_len;
+};
+
+struct ocrdma_qp {
+ struct ib_qp ibqp;
+ struct ocrdma_dev *dev;
+
+ u8 __iomem *sq_db;
+ /* provide synchronization to multiple context(s) posting wqe, rqe */
+ spinlock_t q_lock ____cacheline_aligned;
+ struct ocrdma_qp_hwq_info sq;
+ struct {
+ uint64_t wrid;
+ uint16_t dpp_wqe_idx;
+ uint16_t dpp_wqe;
+ uint8_t signaled;
+ uint8_t rsvd[3];
+ } *wqe_wr_id_tbl;
+ u32 max_inline_data;
+ struct ocrdma_cq *sq_cq;
+ /* list maintained per CQ to flush SQ errors */
+ struct list_head sq_entry;
+
+ u8 __iomem *rq_db;
+ struct ocrdma_qp_hwq_info rq;
+ u64 *rqe_wr_id_tbl;
+ struct ocrdma_cq *rq_cq;
+ struct ocrdma_srq *srq;
+ /* list maintained per CQ to flush RQ errors */
+ struct list_head rq_entry;
+
+ enum ocrdma_qp_state state; /* QP state */
+ int cap_flags;
+ u32 max_ord, max_ird;
+
+ u32 id;
+ struct ocrdma_pd *pd;
+
+ enum ib_qp_type qp_type;
+
+ int sgid_idx;
+ u32 qkey;
+ bool dpp_enabled;
+ u8 *ird_q_va;
+};
+
+#define OCRDMA_GET_NUM_POSTED_SHIFT_VAL(qp) \
+ (((qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) && \
+ (qp->id < 64)) ? 24 : 16)
+
+struct ocrdma_hw_mr {
+ struct ocrdma_dev *dev;
+ u32 lkey;
+ u8 fr_mr;
+ u8 remote_atomic;
+ u8 remote_rd;
+ u8 remote_wr;
+ u8 local_rd;
+ u8 local_wr;
+ u8 mw_bind;
+ u8 rsvd;
+ u64 len;
+ struct ocrdma_pbl *pbl_table;
+ u32 num_pbls;
+ u32 num_pbes;
+ u32 pbl_size;
+ u32 pbe_size;
+ u64 fbo;
+ u64 va;
+};
+
+struct ocrdma_mr {
+ struct ib_mr ibmr;
+ struct ib_umem *umem;
+ struct ocrdma_hw_mr hwmr;
+ struct ocrdma_pd *pd;
+};
+
+struct ocrdma_ucontext {
+ struct ib_ucontext ibucontext;
+ struct ocrdma_dev *dev;
+
+ struct list_head mm_head;
+ struct mutex mm_list_lock; /* protects list entries of mm type */
+ struct {
+ u32 *va;
+ dma_addr_t pa;
+ u32 len;
+ } ah_tbl;
+};
+
+struct ocrdma_mm {
+ struct {
+ u64 phy_addr;
+ unsigned long len;
+ } key;
+ struct list_head entry;
+};
+
+static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev)
+{
+ return container_of(ibdev, struct ocrdma_dev, ibdev);
+}
+
+static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext
+ *ibucontext)
+{
+ return container_of(ibucontext, struct ocrdma_ucontext, ibucontext);
+}
+
+static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct ocrdma_pd, ibpd);
+}
+
+static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct ocrdma_cq, ibcq);
+}
+
+static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct ocrdma_qp, ibqp);
+}
+
+static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct ocrdma_mr, ibmr);
+}
+
+static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah)
+{
+ return container_of(ibah, struct ocrdma_ah, ibah);
+}
+
+static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
+{
+ return container_of(ibsrq, struct ocrdma_srq, ibsrq);
+}
+
+#endif
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_abi.h b/drivers/infiniband/hw/ocrdma/ocrdma_abi.h
new file mode 100644
index 000000000000..a411a4e3193d
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_abi.h
@@ -0,0 +1,134 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_ABI_H__
+#define __OCRDMA_ABI_H__
+
+struct ocrdma_alloc_ucontext_resp {
+ u32 dev_id;
+ u32 wqe_size;
+ u32 max_inline_data;
+ u32 dpp_wqe_size;
+ u64 ah_tbl_page;
+ u32 ah_tbl_len;
+ u32 rsvd;
+ u8 fw_ver[32];
+ u32 rqe_size;
+ u64 rsvd1;
+} __packed;
+
+/* user kernel communication data structures. */
+struct ocrdma_alloc_pd_ureq {
+ u64 rsvd1;
+} __packed;
+
+struct ocrdma_alloc_pd_uresp {
+ u32 id;
+ u32 dpp_enabled;
+ u32 dpp_page_addr_hi;
+ u32 dpp_page_addr_lo;
+ u64 rsvd1;
+} __packed;
+
+struct ocrdma_create_cq_ureq {
+ u32 dpp_cq;
+ u32 rsvd;
+} __packed;
+
+#define MAX_CQ_PAGES 8
+struct ocrdma_create_cq_uresp {
+ u32 cq_id;
+ u32 page_size;
+ u32 num_pages;
+ u32 max_hw_cqe;
+ u64 page_addr[MAX_CQ_PAGES];
+ u64 db_page_addr;
+ u32 db_page_size;
+ u32 phase_change;
+ u64 rsvd1;
+ u64 rsvd2;
+} __packed;
+
+#define MAX_QP_PAGES 8
+#define MAX_UD_AV_PAGES 8
+
+struct ocrdma_create_qp_ureq {
+ u8 enable_dpp_cq;
+ u8 rsvd;
+ u16 dpp_cq_id;
+ u32 rsvd1;
+};
+
+struct ocrdma_create_qp_uresp {
+ u16 qp_id;
+ u16 sq_dbid;
+ u16 rq_dbid;
+ u16 resv0;
+ u32 sq_page_size;
+ u32 rq_page_size;
+ u32 num_sq_pages;
+ u32 num_rq_pages;
+ u64 sq_page_addr[MAX_QP_PAGES];
+ u64 rq_page_addr[MAX_QP_PAGES];
+ u64 db_page_addr;
+ u32 db_page_size;
+ u32 dpp_credit;
+ u32 dpp_offset;
+ u32 rsvd1;
+ u32 num_wqe_allocated;
+ u32 num_rqe_allocated;
+ u32 free_wqe_delta;
+ u32 free_rqe_delta;
+ u32 db_sq_offset;
+ u32 db_rq_offset;
+ u32 db_shift;
+ u64 rsvd2;
+ u64 rsvd3;
+} __packed;
+
+struct ocrdma_create_srq_uresp {
+ u16 rq_dbid;
+ u16 resv0;
+ u32 resv1;
+
+ u32 rq_page_size;
+ u32 num_rq_pages;
+
+ u64 rq_page_addr[MAX_QP_PAGES];
+ u64 db_page_addr;
+
+ u32 db_page_size;
+ u32 num_rqe_allocated;
+ u32 db_rq_offset;
+ u32 db_shift;
+
+ u32 free_rqe_delta;
+ u32 rsvd2;
+ u64 rsvd3;
+} __packed;
+
+#endif /* __OCRDMA_ABI_H__ */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
new file mode 100644
index 000000000000..a877a8ed7907
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
@@ -0,0 +1,172 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#include <net/neighbour.h>
+#include <net/netevent.h>
+
+#include <rdma/ib_addr.h>
+#include <rdma/ib_cache.h>
+
+#include "ocrdma.h"
+#include "ocrdma_verbs.h"
+#include "ocrdma_ah.h"
+#include "ocrdma_hw.h"
+
+static inline int set_av_attr(struct ocrdma_ah *ah,
+ struct ib_ah_attr *attr, int pdid)
+{
+ int status = 0;
+ u16 vlan_tag; bool vlan_enabled = false;
+ struct ocrdma_dev *dev = ah->dev;
+ struct ocrdma_eth_vlan eth;
+ struct ocrdma_grh grh;
+ int eth_sz;
+
+ memset(&eth, 0, sizeof(eth));
+ memset(&grh, 0, sizeof(grh));
+
+ ah->sgid_index = attr->grh.sgid_index;
+
+ vlan_tag = rdma_get_vlan_id(&attr->grh.dgid);
+ if (vlan_tag && (vlan_tag < 0x1000)) {
+ eth.eth_type = cpu_to_be16(0x8100);
+ eth.roce_eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
+ vlan_tag |= (attr->sl & 7) << 13;
+ eth.vlan_tag = cpu_to_be16(vlan_tag);
+ eth_sz = sizeof(struct ocrdma_eth_vlan);
+ vlan_enabled = true;
+ } else {
+ eth.eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
+ eth_sz = sizeof(struct ocrdma_eth_basic);
+ }
+ memcpy(&eth.smac[0], &dev->nic_info.mac_addr[0], ETH_ALEN);
+ status = ocrdma_resolve_dgid(dev, &attr->grh.dgid, &eth.dmac[0]);
+ if (status)
+ return status;
+ status = ocrdma_query_gid(&dev->ibdev, 1, attr->grh.sgid_index,
+ (union ib_gid *)&grh.sgid[0]);
+ if (status)
+ return status;
+
+ grh.tclass_flow = cpu_to_be32((6 << 28) |
+ (attr->grh.traffic_class << 24) |
+ attr->grh.flow_label);
+ /* 0x1b is next header value in GRH */
+ grh.pdid_hoplimit = cpu_to_be32((pdid << 16) |
+ (0x1b << 8) | attr->grh.hop_limit);
+
+ memcpy(&grh.dgid[0], attr->grh.dgid.raw, sizeof(attr->grh.dgid.raw));
+ memcpy(&ah->av->eth_hdr, &eth, eth_sz);
+ memcpy((u8 *)ah->av + eth_sz, &grh, sizeof(struct ocrdma_grh));
+ if (vlan_enabled)
+ ah->av->valid |= OCRDMA_AV_VLAN_VALID;
+ return status;
+}
+
+struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr)
+{
+ u32 *ahid_addr;
+ int status;
+ struct ocrdma_ah *ah;
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_dev *dev = pd->dev;
+
+ if (!(attr->ah_flags & IB_AH_GRH))
+ return ERR_PTR(-EINVAL);
+
+ ah = kzalloc(sizeof *ah, GFP_ATOMIC);
+ if (!ah)
+ return ERR_PTR(-ENOMEM);
+ ah->dev = pd->dev;
+
+ status = ocrdma_alloc_av(dev, ah);
+ if (status)
+ goto av_err;
+ status = set_av_attr(ah, attr, pd->id);
+ if (status)
+ goto av_conf_err;
+
+ /* if pd is for the user process, pass the ah_id to user space */
+ if ((pd->uctx) && (pd->uctx->ah_tbl.va)) {
+ ahid_addr = pd->uctx->ah_tbl.va + attr->dlid;
+ *ahid_addr = ah->id;
+ }
+ return &ah->ibah;
+
+av_conf_err:
+ ocrdma_free_av(dev, ah);
+av_err:
+ kfree(ah);
+ return ERR_PTR(status);
+}
+
+int ocrdma_destroy_ah(struct ib_ah *ibah)
+{
+ struct ocrdma_ah *ah = get_ocrdma_ah(ibah);
+ ocrdma_free_av(ah->dev, ah);
+ kfree(ah);
+ return 0;
+}
+
+int ocrdma_query_ah(struct ib_ah *ibah, struct ib_ah_attr *attr)
+{
+ struct ocrdma_ah *ah = get_ocrdma_ah(ibah);
+ struct ocrdma_av *av = ah->av;
+ struct ocrdma_grh *grh;
+ attr->ah_flags |= IB_AH_GRH;
+ if (ah->av->valid & Bit(1)) {
+ grh = (struct ocrdma_grh *)((u8 *)ah->av +
+ sizeof(struct ocrdma_eth_vlan));
+ attr->sl = be16_to_cpu(av->eth_hdr.vlan_tag) >> 13;
+ } else {
+ grh = (struct ocrdma_grh *)((u8 *)ah->av +
+ sizeof(struct ocrdma_eth_basic));
+ attr->sl = 0;
+ }
+ memcpy(&attr->grh.dgid.raw[0], &grh->dgid[0], sizeof(grh->dgid));
+ attr->grh.sgid_index = ah->sgid_index;
+ attr->grh.hop_limit = be32_to_cpu(grh->pdid_hoplimit) & 0xff;
+ attr->grh.traffic_class = be32_to_cpu(grh->tclass_flow) >> 24;
+ attr->grh.flow_label = be32_to_cpu(grh->tclass_flow) & 0x00ffffffff;
+ return 0;
+}
+
+int ocrdma_modify_ah(struct ib_ah *ibah, struct ib_ah_attr *attr)
+{
+ /* modify_ah is unsupported */
+ return -ENOSYS;
+}
+
+int ocrdma_process_mad(struct ib_device *ibdev,
+ int process_mad_flags,
+ u8 port_num,
+ struct ib_wc *in_wc,
+ struct ib_grh *in_grh,
+ struct ib_mad *in_mad, struct ib_mad *out_mad)
+{
+ return IB_MAD_RESULT_SUCCESS;
+}
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.h b/drivers/infiniband/hw/ocrdma/ocrdma_ah.h
new file mode 100644
index 000000000000..8ac49e7f96d1
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.h
@@ -0,0 +1,42 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_AH_H__
+#define __OCRDMA_AH_H__
+
+struct ib_ah *ocrdma_create_ah(struct ib_pd *, struct ib_ah_attr *);
+int ocrdma_destroy_ah(struct ib_ah *);
+int ocrdma_query_ah(struct ib_ah *, struct ib_ah_attr *);
+int ocrdma_modify_ah(struct ib_ah *, struct ib_ah_attr *);
+
+int ocrdma_process_mad(struct ib_device *,
+ int process_mad_flags,
+ u8 port_num,
+ struct ib_wc *in_wc,
+ struct ib_grh *in_grh,
+ struct ib_mad *in_mad, struct ib_mad *out_mad);
+#endif /* __OCRDMA_AH_H__ */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
new file mode 100644
index 000000000000..c53545f1baf6
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -0,0 +1,2640 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) CNA Adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/log2.h>
+#include <linux/dma-mapping.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_addr.h>
+
+#include "ocrdma.h"
+#include "ocrdma_hw.h"
+#include "ocrdma_verbs.h"
+#include "ocrdma_ah.h"
+
+enum mbx_status {
+ OCRDMA_MBX_STATUS_FAILED = 1,
+ OCRDMA_MBX_STATUS_ILLEGAL_FIELD = 3,
+ OCRDMA_MBX_STATUS_OOR = 100,
+ OCRDMA_MBX_STATUS_INVALID_PD = 101,
+ OCRDMA_MBX_STATUS_PD_INUSE = 102,
+ OCRDMA_MBX_STATUS_INVALID_CQ = 103,
+ OCRDMA_MBX_STATUS_INVALID_QP = 104,
+ OCRDMA_MBX_STATUS_INVALID_LKEY = 105,
+ OCRDMA_MBX_STATUS_ORD_EXCEEDS = 106,
+ OCRDMA_MBX_STATUS_IRD_EXCEEDS = 107,
+ OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS = 108,
+ OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS = 109,
+ OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS = 110,
+ OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS = 111,
+ OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS = 112,
+ OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE = 113,
+ OCRDMA_MBX_STATUS_MW_BOUND = 114,
+ OCRDMA_MBX_STATUS_INVALID_VA = 115,
+ OCRDMA_MBX_STATUS_INVALID_LENGTH = 116,
+ OCRDMA_MBX_STATUS_INVALID_FBO = 117,
+ OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS = 118,
+ OCRDMA_MBX_STATUS_INVALID_PBE_SIZE = 119,
+ OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY = 120,
+ OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT = 121,
+ OCRDMA_MBX_STATUS_INVALID_SRQ_ID = 129,
+ OCRDMA_MBX_STATUS_SRQ_ERROR = 133,
+ OCRDMA_MBX_STATUS_RQE_EXCEEDS = 134,
+ OCRDMA_MBX_STATUS_MTU_EXCEEDS = 135,
+ OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS = 136,
+ OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS = 137,
+ OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS = 138,
+ OCRDMA_MBX_STATUS_QP_BOUND = 130,
+ OCRDMA_MBX_STATUS_INVALID_CHANGE = 139,
+ OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP = 140,
+ OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER = 141,
+ OCRDMA_MBX_STATUS_MW_STILL_BOUND = 142,
+ OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID = 143,
+ OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS = 144
+};
+
+enum additional_status {
+ OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES = 22
+};
+
+enum cqe_status {
+ OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES = 1,
+ OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER = 2,
+ OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES = 3,
+ OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING = 4,
+ OCRDMA_MBX_CQE_STATUS_DMA_FAILED = 5
+};
+
+static inline void *ocrdma_get_eqe(struct ocrdma_eq *eq)
+{
+ return (u8 *)eq->q.va + (eq->q.tail * sizeof(struct ocrdma_eqe));
+}
+
+static inline void ocrdma_eq_inc_tail(struct ocrdma_eq *eq)
+{
+ eq->q.tail = (eq->q.tail + 1) & (OCRDMA_EQ_LEN - 1);
+}
+
+static inline void *ocrdma_get_mcqe(struct ocrdma_dev *dev)
+{
+ struct ocrdma_mcqe *cqe = (struct ocrdma_mcqe *)
+ ((u8 *) dev->mq.cq.va +
+ (dev->mq.cq.tail * sizeof(struct ocrdma_mcqe)));
+
+ if (!(le32_to_cpu(cqe->valid_ae_cmpl_cons) & OCRDMA_MCQE_VALID_MASK))
+ return NULL;
+ return cqe;
+}
+
+static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev *dev)
+{
+ dev->mq.cq.tail = (dev->mq.cq.tail + 1) & (OCRDMA_MQ_CQ_LEN - 1);
+}
+
+static inline struct ocrdma_mqe *ocrdma_get_mqe(struct ocrdma_dev *dev)
+{
+ return (struct ocrdma_mqe *)((u8 *) dev->mq.sq.va +
+ (dev->mq.sq.head *
+ sizeof(struct ocrdma_mqe)));
+}
+
+static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev)
+{
+ dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1);
+ atomic_inc(&dev->mq.sq.used);
+}
+
+static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev *dev)
+{
+ return (void *)((u8 *) dev->mq.sq.va +
+ (dev->mqe_ctx.tag * sizeof(struct ocrdma_mqe)));
+}
+
+enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps)
+{
+ switch (qps) {
+ case OCRDMA_QPS_RST:
+ return IB_QPS_RESET;
+ case OCRDMA_QPS_INIT:
+ return IB_QPS_INIT;
+ case OCRDMA_QPS_RTR:
+ return IB_QPS_RTR;
+ case OCRDMA_QPS_RTS:
+ return IB_QPS_RTS;
+ case OCRDMA_QPS_SQD:
+ case OCRDMA_QPS_SQ_DRAINING:
+ return IB_QPS_SQD;
+ case OCRDMA_QPS_SQE:
+ return IB_QPS_SQE;
+ case OCRDMA_QPS_ERR:
+ return IB_QPS_ERR;
+ };
+ return IB_QPS_ERR;
+}
+
+enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps)
+{
+ switch (qps) {
+ case IB_QPS_RESET:
+ return OCRDMA_QPS_RST;
+ case IB_QPS_INIT:
+ return OCRDMA_QPS_INIT;
+ case IB_QPS_RTR:
+ return OCRDMA_QPS_RTR;
+ case IB_QPS_RTS:
+ return OCRDMA_QPS_RTS;
+ case IB_QPS_SQD:
+ return OCRDMA_QPS_SQD;
+ case IB_QPS_SQE:
+ return OCRDMA_QPS_SQE;
+ case IB_QPS_ERR:
+ return OCRDMA_QPS_ERR;
+ };
+ return OCRDMA_QPS_ERR;
+}
+
+static int ocrdma_get_mbx_errno(u32 status)
+{
+ int err_num = -EFAULT;
+ u8 mbox_status = (status & OCRDMA_MBX_RSP_STATUS_MASK) >>
+ OCRDMA_MBX_RSP_STATUS_SHIFT;
+ u8 add_status = (status & OCRDMA_MBX_RSP_ASTATUS_MASK) >>
+ OCRDMA_MBX_RSP_ASTATUS_SHIFT;
+
+ switch (mbox_status) {
+ case OCRDMA_MBX_STATUS_OOR:
+ case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS:
+ err_num = -EAGAIN;
+ break;
+
+ case OCRDMA_MBX_STATUS_INVALID_PD:
+ case OCRDMA_MBX_STATUS_INVALID_CQ:
+ case OCRDMA_MBX_STATUS_INVALID_SRQ_ID:
+ case OCRDMA_MBX_STATUS_INVALID_QP:
+ case OCRDMA_MBX_STATUS_INVALID_CHANGE:
+ case OCRDMA_MBX_STATUS_MTU_EXCEEDS:
+ case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER:
+ case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID:
+ case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS:
+ case OCRDMA_MBX_STATUS_ILLEGAL_FIELD:
+ case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY:
+ case OCRDMA_MBX_STATUS_INVALID_LKEY:
+ case OCRDMA_MBX_STATUS_INVALID_VA:
+ case OCRDMA_MBX_STATUS_INVALID_LENGTH:
+ case OCRDMA_MBX_STATUS_INVALID_FBO:
+ case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS:
+ case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE:
+ case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP:
+ case OCRDMA_MBX_STATUS_SRQ_ERROR:
+ case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS:
+ err_num = -EINVAL;
+ break;
+
+ case OCRDMA_MBX_STATUS_PD_INUSE:
+ case OCRDMA_MBX_STATUS_QP_BOUND:
+ case OCRDMA_MBX_STATUS_MW_STILL_BOUND:
+ case OCRDMA_MBX_STATUS_MW_BOUND:
+ err_num = -EBUSY;
+ break;
+
+ case OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS:
+ case OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS:
+ case OCRDMA_MBX_STATUS_RQE_EXCEEDS:
+ case OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS:
+ case OCRDMA_MBX_STATUS_ORD_EXCEEDS:
+ case OCRDMA_MBX_STATUS_IRD_EXCEEDS:
+ case OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS:
+ case OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS:
+ case OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS:
+ err_num = -ENOBUFS;
+ break;
+
+ case OCRDMA_MBX_STATUS_FAILED:
+ switch (add_status) {
+ case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES:
+ err_num = -EAGAIN;
+ break;
+ }
+ default:
+ err_num = -EFAULT;
+ }
+ return err_num;
+}
+
+static int ocrdma_get_mbx_cqe_errno(u16 cqe_status)
+{
+ int err_num = -EINVAL;
+
+ switch (cqe_status) {
+ case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES:
+ err_num = -EPERM;
+ break;
+ case OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER:
+ err_num = -EINVAL;
+ break;
+ case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES:
+ case OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING:
+ err_num = -EAGAIN;
+ break;
+ case OCRDMA_MBX_CQE_STATUS_DMA_FAILED:
+ err_num = -EIO;
+ break;
+ }
+ return err_num;
+}
+
+void ocrdma_ring_cq_db(struct ocrdma_dev *dev, u16 cq_id, bool armed,
+ bool solicited, u16 cqe_popped)
+{
+ u32 val = cq_id & OCRDMA_DB_CQ_RING_ID_MASK;
+
+ val |= ((cq_id & OCRDMA_DB_CQ_RING_ID_EXT_MASK) <<
+ OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT);
+
+ if (armed)
+ val |= (1 << OCRDMA_DB_CQ_REARM_SHIFT);
+ if (solicited)
+ val |= (1 << OCRDMA_DB_CQ_SOLICIT_SHIFT);
+ val |= (cqe_popped << OCRDMA_DB_CQ_NUM_POPPED_SHIFT);
+ iowrite32(val, dev->nic_info.db + OCRDMA_DB_CQ_OFFSET);
+}
+
+static void ocrdma_ring_mq_db(struct ocrdma_dev *dev)
+{
+ u32 val = 0;
+
+ val |= dev->mq.sq.id & OCRDMA_MQ_ID_MASK;
+ val |= 1 << OCRDMA_MQ_NUM_MQE_SHIFT;
+ iowrite32(val, dev->nic_info.db + OCRDMA_DB_MQ_OFFSET);
+}
+
+static void ocrdma_ring_eq_db(struct ocrdma_dev *dev, u16 eq_id,
+ bool arm, bool clear_int, u16 num_eqe)
+{
+ u32 val = 0;
+
+ val |= eq_id & OCRDMA_EQ_ID_MASK;
+ val |= ((eq_id & OCRDMA_EQ_ID_EXT_MASK) << OCRDMA_EQ_ID_EXT_MASK_SHIFT);
+ if (arm)
+ val |= (1 << OCRDMA_REARM_SHIFT);
+ if (clear_int)
+ val |= (1 << OCRDMA_EQ_CLR_SHIFT);
+ val |= (1 << OCRDMA_EQ_TYPE_SHIFT);
+ val |= (num_eqe << OCRDMA_NUM_EQE_SHIFT);
+ iowrite32(val, dev->nic_info.db + OCRDMA_DB_EQ_OFFSET);
+}
+
+static void ocrdma_init_mch(struct ocrdma_mbx_hdr *cmd_hdr,
+ u8 opcode, u8 subsys, u32 cmd_len)
+{
+ cmd_hdr->subsys_op = (opcode | (subsys << OCRDMA_MCH_SUBSYS_SHIFT));
+ cmd_hdr->timeout = 20; /* seconds */
+ cmd_hdr->cmd_len = cmd_len - sizeof(struct ocrdma_mbx_hdr);
+}
+
+static void *ocrdma_init_emb_mqe(u8 opcode, u32 cmd_len)
+{
+ struct ocrdma_mqe *mqe;
+
+ mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
+ if (!mqe)
+ return NULL;
+ mqe->hdr.spcl_sge_cnt_emb |=
+ (OCRDMA_MQE_EMBEDDED << OCRDMA_MQE_HDR_EMB_SHIFT) &
+ OCRDMA_MQE_HDR_EMB_MASK;
+ mqe->hdr.pyld_len = cmd_len - sizeof(struct ocrdma_mqe_hdr);
+
+ ocrdma_init_mch(&mqe->u.emb_req.mch, opcode, OCRDMA_SUBSYS_ROCE,
+ mqe->hdr.pyld_len);
+ return mqe;
+}
+
+static void ocrdma_free_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q)
+{
+ dma_free_coherent(&dev->nic_info.pdev->dev, q->size, q->va, q->dma);
+}
+
+static int ocrdma_alloc_q(struct ocrdma_dev *dev,
+ struct ocrdma_queue_info *q, u16 len, u16 entry_size)
+{
+ memset(q, 0, sizeof(*q));
+ q->len = len;
+ q->entry_size = entry_size;
+ q->size = len * entry_size;
+ q->va = dma_alloc_coherent(&dev->nic_info.pdev->dev, q->size,
+ &q->dma, GFP_KERNEL);
+ if (!q->va)
+ return -ENOMEM;
+ memset(q->va, 0, q->size);
+ return 0;
+}
+
+static void ocrdma_build_q_pages(struct ocrdma_pa *q_pa, int cnt,
+ dma_addr_t host_pa, int hw_page_size)
+{
+ int i;
+
+ for (i = 0; i < cnt; i++) {
+ q_pa[i].lo = (u32) (host_pa & 0xffffffff);
+ q_pa[i].hi = (u32) upper_32_bits(host_pa);
+ host_pa += hw_page_size;
+ }
+}
+
+static void ocrdma_assign_eq_vect_gen2(struct ocrdma_dev *dev,
+ struct ocrdma_eq *eq)
+{
+ /* assign vector and update vector id for next EQ */
+ eq->vector = dev->nic_info.msix.start_vector;
+ dev->nic_info.msix.start_vector += 1;
+}
+
+static void ocrdma_free_eq_vect_gen2(struct ocrdma_dev *dev)
+{
+ /* this assumes that EQs are freed in exactly reverse order
+ * as its allocation.
+ */
+ dev->nic_info.msix.start_vector -= 1;
+}
+
+int ocrdma_mbx_delete_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q,
+ int queue_type)
+{
+ u8 opcode = 0;
+ int status;
+ struct ocrdma_delete_q_req *cmd = dev->mbx_cmd;
+
+ switch (queue_type) {
+ case QTYPE_MCCQ:
+ opcode = OCRDMA_CMD_DELETE_MQ;
+ break;
+ case QTYPE_CQ:
+ opcode = OCRDMA_CMD_DELETE_CQ;
+ break;
+ case QTYPE_EQ:
+ opcode = OCRDMA_CMD_DELETE_EQ;
+ break;
+ default:
+ BUG();
+ }
+ memset(cmd, 0, sizeof(*cmd));
+ ocrdma_init_mch(&cmd->req, opcode, OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+ cmd->id = q->id;
+
+ status = be_roce_mcc_cmd(dev->nic_info.netdev,
+ cmd, sizeof(*cmd), NULL, NULL);
+ if (!status)
+ q->created = false;
+ return status;
+}
+
+static int ocrdma_mbx_create_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
+{
+ int status;
+ struct ocrdma_create_eq_req *cmd = dev->mbx_cmd;
+ struct ocrdma_create_eq_rsp *rsp = dev->mbx_cmd;
+
+ memset(cmd, 0, sizeof(*cmd));
+ ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_EQ, OCRDMA_SUBSYS_COMMON,
+ sizeof(*cmd));
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
+ cmd->req.rsvd_version = 0;
+ else
+ cmd->req.rsvd_version = 2;
+
+ cmd->num_pages = 4;
+ cmd->valid = OCRDMA_CREATE_EQ_VALID;
+ cmd->cnt = 4 << OCRDMA_CREATE_EQ_CNT_SHIFT;
+
+ ocrdma_build_q_pages(&cmd->pa[0], cmd->num_pages, eq->q.dma,
+ PAGE_SIZE_4K);
+ status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL,
+ NULL);
+ if (!status) {
+ eq->q.id = rsp->vector_eqid & 0xffff;
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
+ ocrdma_assign_eq_vect_gen2(dev, eq);
+ else {
+ eq->vector = (rsp->vector_eqid >> 16) & 0xffff;
+ dev->nic_info.msix.start_vector += 1;
+ }
+ eq->q.created = true;
+ }
+ return status;
+}
+
+static int ocrdma_create_eq(struct ocrdma_dev *dev,
+ struct ocrdma_eq *eq, u16 q_len)
+{
+ int status;
+
+ status = ocrdma_alloc_q(dev, &eq->q, OCRDMA_EQ_LEN,
+ sizeof(struct ocrdma_eqe));
+ if (status)
+ return status;
+
+ status = ocrdma_mbx_create_eq(dev, eq);
+ if (status)
+ goto mbx_err;
+ eq->dev = dev;
+ ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0);
+
+ return 0;
+mbx_err:
+ ocrdma_free_q(dev, &eq->q);
+ return status;
+}
+
+static int ocrdma_get_irq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
+{
+ int irq;
+
+ if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
+ irq = dev->nic_info.pdev->irq;
+ else
+ irq = dev->nic_info.msix.vector_list[eq->vector];
+ return irq;
+}
+
+static void _ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
+{
+ if (eq->q.created) {
+ ocrdma_mbx_delete_q(dev, &eq->q, QTYPE_EQ);
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
+ ocrdma_free_eq_vect_gen2(dev);
+ ocrdma_free_q(dev, &eq->q);
+ }
+}
+
+static void ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
+{
+ int irq;
+
+ /* disarm EQ so that interrupts are not generated
+ * during freeing and EQ delete is in progress.
+ */
+ ocrdma_ring_eq_db(dev, eq->q.id, false, false, 0);
+
+ irq = ocrdma_get_irq(dev, eq);
+ free_irq(irq, eq);
+ _ocrdma_destroy_eq(dev, eq);
+}
+
+static void ocrdma_destroy_qp_eqs(struct ocrdma_dev *dev)
+{
+ int i;
+
+ /* deallocate the data path eqs */
+ for (i = 0; i < dev->eq_cnt; i++)
+ ocrdma_destroy_eq(dev, &dev->qp_eq_tbl[i]);
+}
+
+int ocrdma_mbx_mq_cq_create(struct ocrdma_dev *dev,
+ struct ocrdma_queue_info *cq,
+ struct ocrdma_queue_info *eq)
+{
+ struct ocrdma_create_cq_cmd *cmd = dev->mbx_cmd;
+ struct ocrdma_create_cq_cmd_rsp *rsp = dev->mbx_cmd;
+ int status;
+
+ memset(cmd, 0, sizeof(*cmd));
+ ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_CQ,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+
+ cmd->pgsz_pgcnt = PAGES_4K_SPANNED(cq->va, cq->size);
+ cmd->ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
+ cmd->eqn = (eq->id << OCRDMA_CREATE_CQ_EQID_SHIFT);
+
+ ocrdma_build_q_pages(&cmd->pa[0], cmd->pgsz_pgcnt,
+ cq->dma, PAGE_SIZE_4K);
+ status = be_roce_mcc_cmd(dev->nic_info.netdev,
+ cmd, sizeof(*cmd), NULL, NULL);
+ if (!status) {
+ cq->id = (rsp->cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
+ cq->created = true;
+ }
+ return status;
+}
+
+static u32 ocrdma_encoded_q_len(int q_len)
+{
+ u32 len_encoded = fls(q_len); /* log2(len) + 1 */
+
+ if (len_encoded == 16)
+ len_encoded = 0;
+ return len_encoded;
+}
+
+static int ocrdma_mbx_create_mq(struct ocrdma_dev *dev,
+ struct ocrdma_queue_info *mq,
+ struct ocrdma_queue_info *cq)
+{
+ int num_pages, status;
+ struct ocrdma_create_mq_req *cmd = dev->mbx_cmd;
+ struct ocrdma_create_mq_rsp *rsp = dev->mbx_cmd;
+ struct ocrdma_pa *pa;
+
+ memset(cmd, 0, sizeof(*cmd));
+ num_pages = PAGES_4K_SPANNED(mq->va, mq->size);
+
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+ cmd->v0.pages = num_pages;
+ cmd->v0.async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
+ cmd->v0.async_cqid_valid = (cq->id << 1);
+ cmd->v0.cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
+ OCRDMA_CREATE_MQ_RING_SIZE_SHIFT);
+ cmd->v0.cqid_ringsize |=
+ (cq->id << OCRDMA_CREATE_MQ_V0_CQ_ID_SHIFT);
+ cmd->v0.valid = OCRDMA_CREATE_MQ_VALID;
+ pa = &cmd->v0.pa[0];
+ } else {
+ ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ_EXT,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+ cmd->req.rsvd_version = 1;
+ cmd->v1.cqid_pages = num_pages;
+ cmd->v1.cqid_pages |= (cq->id << OCRDMA_CREATE_MQ_CQ_ID_SHIFT);
+ cmd->v1.async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
+ cmd->v1.async_event_bitmap = Bit(20);
+ cmd->v1.async_cqid_ringsize = cq->id;
+ cmd->v1.async_cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
+ OCRDMA_CREATE_MQ_RING_SIZE_SHIFT);
+ cmd->v1.valid = OCRDMA_CREATE_MQ_VALID;
+ pa = &cmd->v1.pa[0];
+ }
+ ocrdma_build_q_pages(pa, num_pages, mq->dma, PAGE_SIZE_4K);
+ status = be_roce_mcc_cmd(dev->nic_info.netdev,
+ cmd, sizeof(*cmd), NULL, NULL);
+ if (!status) {
+ mq->id = rsp->id;
+ mq->created = true;
+ }
+ return status;
+}
+
+static int ocrdma_create_mq(struct ocrdma_dev *dev)
+{
+ int status;
+
+ /* Alloc completion queue for Mailbox queue */
+ status = ocrdma_alloc_q(dev, &dev->mq.cq, OCRDMA_MQ_CQ_LEN,
+ sizeof(struct ocrdma_mcqe));
+ if (status)
+ goto alloc_err;
+
+ status = ocrdma_mbx_mq_cq_create(dev, &dev->mq.cq, &dev->meq.q);
+ if (status)
+ goto mbx_cq_free;
+
+ memset(&dev->mqe_ctx, 0, sizeof(dev->mqe_ctx));
+ init_waitqueue_head(&dev->mqe_ctx.cmd_wait);
+ mutex_init(&dev->mqe_ctx.lock);
+
+ /* Alloc Mailbox queue */
+ status = ocrdma_alloc_q(dev, &dev->mq.sq, OCRDMA_MQ_LEN,
+ sizeof(struct ocrdma_mqe));
+ if (status)
+ goto mbx_cq_destroy;
+ status = ocrdma_mbx_create_mq(dev, &dev->mq.sq, &dev->mq.cq);
+ if (status)
+ goto mbx_q_free;
+ ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, 0);
+ return 0;
+
+mbx_q_free:
+ ocrdma_free_q(dev, &dev->mq.sq);
+mbx_cq_destroy:
+ ocrdma_mbx_delete_q(dev, &dev->mq.cq, QTYPE_CQ);
+mbx_cq_free:
+ ocrdma_free_q(dev, &dev->mq.cq);
+alloc_err:
+ return status;
+}
+
+static void ocrdma_destroy_mq(struct ocrdma_dev *dev)
+{
+ struct ocrdma_queue_info *mbxq, *cq;
+
+ /* mqe_ctx lock synchronizes with any other pending cmds. */
+ mutex_lock(&dev->mqe_ctx.lock);
+ mbxq = &dev->mq.sq;
+ if (mbxq->created) {
+ ocrdma_mbx_delete_q(dev, mbxq, QTYPE_MCCQ);
+ ocrdma_free_q(dev, mbxq);
+ }
+ mutex_unlock(&dev->mqe_ctx.lock);
+
+ cq = &dev->mq.cq;
+ if (cq->created) {
+ ocrdma_mbx_delete_q(dev, cq, QTYPE_CQ);
+ ocrdma_free_q(dev, cq);
+ }
+}
+
+static void ocrdma_process_qpcat_error(struct ocrdma_dev *dev,
+ struct ocrdma_qp *qp)
+{
+ enum ib_qp_state new_ib_qps = IB_QPS_ERR;
+ enum ib_qp_state old_ib_qps;
+
+ if (qp == NULL)
+ BUG();
+ ocrdma_qp_state_machine(qp, new_ib_qps, &old_ib_qps);
+}
+
+static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev,
+ struct ocrdma_ae_mcqe *cqe)
+{
+ struct ocrdma_qp *qp = NULL;
+ struct ocrdma_cq *cq = NULL;
+ struct ib_event ib_evt = { 0 };
+ int cq_event = 0;
+ int qp_event = 1;
+ int srq_event = 0;
+ int dev_event = 0;
+ int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >>
+ OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT;
+
+ if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID)
+ qp = dev->qp_tbl[cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK];
+ if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID)
+ cq = dev->cq_tbl[cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK];
+
+ switch (type) {
+ case OCRDMA_CQ_ERROR:
+ ib_evt.element.cq = &cq->ibcq;
+ ib_evt.event = IB_EVENT_CQ_ERR;
+ cq_event = 1;
+ qp_event = 0;
+ break;
+ case OCRDMA_CQ_OVERRUN_ERROR:
+ ib_evt.element.cq = &cq->ibcq;
+ ib_evt.event = IB_EVENT_CQ_ERR;
+ break;
+ case OCRDMA_CQ_QPCAT_ERROR:
+ ib_evt.element.qp = &qp->ibqp;
+ ib_evt.event = IB_EVENT_QP_FATAL;
+ ocrdma_process_qpcat_error(dev, qp);
+ break;
+ case OCRDMA_QP_ACCESS_ERROR:
+ ib_evt.element.qp = &qp->ibqp;
+ ib_evt.event = IB_EVENT_QP_ACCESS_ERR;
+ break;
+ case OCRDMA_QP_COMM_EST_EVENT:
+ ib_evt.element.qp = &qp->ibqp;
+ ib_evt.event = IB_EVENT_COMM_EST;
+ break;
+ case OCRDMA_SQ_DRAINED_EVENT:
+ ib_evt.element.qp = &qp->ibqp;
+ ib_evt.event = IB_EVENT_SQ_DRAINED;
+ break;
+ case OCRDMA_DEVICE_FATAL_EVENT:
+ ib_evt.element.port_num = 1;
+ ib_evt.event = IB_EVENT_DEVICE_FATAL;
+ qp_event = 0;
+ dev_event = 1;
+ break;
+ case OCRDMA_SRQCAT_ERROR:
+ ib_evt.element.srq = &qp->srq->ibsrq;
+ ib_evt.event = IB_EVENT_SRQ_ERR;
+ srq_event = 1;
+ qp_event = 0;
+ break;
+ case OCRDMA_SRQ_LIMIT_EVENT:
+ ib_evt.element.srq = &qp->srq->ibsrq;
+ ib_evt.event = IB_EVENT_QP_LAST_WQE_REACHED;
+ srq_event = 1;
+ qp_event = 0;
+ break;
+ case OCRDMA_QP_LAST_WQE_EVENT:
+ ib_evt.element.qp = &qp->ibqp;
+ ib_evt.event = IB_EVENT_QP_LAST_WQE_REACHED;
+ break;
+ default:
+ cq_event = 0;
+ qp_event = 0;
+ srq_event = 0;
+ dev_event = 0;
+ ocrdma_err("%s() unknown type=0x%x\n", __func__, type);
+ break;
+ }
+
+ if (qp_event) {
+ if (qp->ibqp.event_handler)
+ qp->ibqp.event_handler(&ib_evt, qp->ibqp.qp_context);
+ } else if (cq_event) {
+ if (cq->ibcq.event_handler)
+ cq->ibcq.event_handler(&ib_evt, cq->ibcq.cq_context);
+ } else if (srq_event) {
+ if (qp->srq->ibsrq.event_handler)
+ qp->srq->ibsrq.event_handler(&ib_evt,
+ qp->srq->ibsrq.
+ srq_context);
+ } else if (dev_event)
+ ib_dispatch_event(&ib_evt);
+
+}
+
+static void ocrdma_process_acqe(struct ocrdma_dev *dev, void *ae_cqe)
+{
+ /* async CQE processing */
+ struct ocrdma_ae_mcqe *cqe = ae_cqe;
+ u32 evt_code = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_CODE_MASK) >>
+ OCRDMA_AE_MCQE_EVENT_CODE_SHIFT;
+
+ if (evt_code == OCRDMA_ASYNC_EVE_CODE)
+ ocrdma_dispatch_ibevent(dev, cqe);
+ else
+ ocrdma_err("%s(%d) invalid evt code=0x%x\n",
+ __func__, dev->id, evt_code);
+}
+
+static void ocrdma_process_mcqe(struct ocrdma_dev *dev, struct ocrdma_mcqe *cqe)
+{
+ if (dev->mqe_ctx.tag == cqe->tag_lo && dev->mqe_ctx.cmd_done == false) {
+ dev->mqe_ctx.cqe_status = (cqe->status &
+ OCRDMA_MCQE_STATUS_MASK) >> OCRDMA_MCQE_STATUS_SHIFT;
+ dev->mqe_ctx.ext_status =
+ (cqe->status & OCRDMA_MCQE_ESTATUS_MASK)
+ >> OCRDMA_MCQE_ESTATUS_SHIFT;
+ dev->mqe_ctx.cmd_done = true;
+ wake_up(&dev->mqe_ctx.cmd_wait);
+ } else
+ ocrdma_err("%s() cqe for invalid tag0x%x.expected=0x%x\n",
+ __func__, cqe->tag_lo, dev->mqe_ctx.tag);
+}
+
+static int ocrdma_mq_cq_handler(struct ocrdma_dev *dev, u16 cq_id)
+{
+ u16 cqe_popped = 0;
+ struct ocrdma_mcqe *cqe;
+
+ while (1) {
+ cqe = ocrdma_get_mcqe(dev);
+ if (cqe == NULL)
+ break;
+ ocrdma_le32_to_cpu(cqe, sizeof(*cqe));
+ cqe_popped += 1;
+ if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_AE_MASK)
+ ocrdma_process_acqe(dev, cqe);
+ else if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_CMPL_MASK)
+ ocrdma_process_mcqe(dev, cqe);
+ else
+ ocrdma_err("%s() cqe->compl is not set.\n", __func__);
+ memset(cqe, 0, sizeof(struct ocrdma_mcqe));
+ ocrdma_mcq_inc_tail(dev);
+ }
+ ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, cqe_popped);
+ return 0;
+}
+
+static void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev,
+ struct ocrdma_cq *cq)
+{
+ unsigned long flags;
+ struct ocrdma_qp *qp;
+ bool buddy_cq_found = false;
+ /* Go through list of QPs in error state which are using this CQ
+ * and invoke its callback handler to trigger CQE processing for
+ * error/flushed CQE. It is rare to find more than few entries in
+ * this list as most consumers stops after getting error CQE.
+ * List is traversed only once when a matching buddy cq found for a QP.
+ */
+ spin_lock_irqsave(&dev->flush_q_lock, flags);
+ list_for_each_entry(qp, &cq->sq_head, sq_entry) {
+ if (qp->srq)
+ continue;
+ /* if wq and rq share the same cq, than comp_handler
+ * is already invoked.
+ */
+ if (qp->sq_cq == qp->rq_cq)
+ continue;
+ /* if completion came on sq, rq's cq is buddy cq.
+ * if completion came on rq, sq's cq is buddy cq.
+ */
+ if (qp->sq_cq == cq)
+ cq = qp->rq_cq;
+ else
+ cq = qp->sq_cq;
+ buddy_cq_found = true;
+ break;
+ }
+ spin_unlock_irqrestore(&dev->flush_q_lock, flags);
+ if (buddy_cq_found == false)
+ return;
+ if (cq->ibcq.comp_handler) {
+ spin_lock_irqsave(&cq->comp_handler_lock, flags);
+ (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
+ spin_unlock_irqrestore(&cq->comp_handler_lock, flags);
+ }
+}
+
+static void ocrdma_qp_cq_handler(struct ocrdma_dev *dev, u16 cq_idx)
+{
+ unsigned long flags;
+ struct ocrdma_cq *cq;
+
+ if (cq_idx >= OCRDMA_MAX_CQ)
+ BUG();
+
+ cq = dev->cq_tbl[cq_idx];
+ if (cq == NULL) {
+ ocrdma_err("%s%d invalid id=0x%x\n", __func__, dev->id, cq_idx);
+ return;
+ }
+ spin_lock_irqsave(&cq->cq_lock, flags);
+ cq->armed = false;
+ cq->solicited = false;
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
+
+ ocrdma_ring_cq_db(dev, cq->id, false, false, 0);
+
+ if (cq->ibcq.comp_handler) {
+ spin_lock_irqsave(&cq->comp_handler_lock, flags);
+ (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
+ spin_unlock_irqrestore(&cq->comp_handler_lock, flags);
+ }
+ ocrdma_qp_buddy_cq_handler(dev, cq);
+}
+
+static void ocrdma_cq_handler(struct ocrdma_dev *dev, u16 cq_id)
+{
+ /* process the MQ-CQE. */
+ if (cq_id == dev->mq.cq.id)
+ ocrdma_mq_cq_handler(dev, cq_id);
+ else
+ ocrdma_qp_cq_handler(dev, cq_id);
+}
+
+static irqreturn_t ocrdma_irq_handler(int irq, void *handle)
+{
+ struct ocrdma_eq *eq = handle;
+ struct ocrdma_dev *dev = eq->dev;
+ struct ocrdma_eqe eqe;
+ struct ocrdma_eqe *ptr;
+ u16 eqe_popped = 0;
+ u16 cq_id;
+ while (1) {
+ ptr = ocrdma_get_eqe(eq);
+ eqe = *ptr;
+ ocrdma_le32_to_cpu(&eqe, sizeof(eqe));
+ if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0)
+ break;
+ eqe_popped += 1;
+ ptr->id_valid = 0;
+ /* check whether its CQE or not. */
+ if ((eqe.id_valid & OCRDMA_EQE_FOR_CQE_MASK) == 0) {
+ cq_id = eqe.id_valid >> OCRDMA_EQE_RESOURCE_ID_SHIFT;
+ ocrdma_cq_handler(dev, cq_id);
+ }
+ ocrdma_eq_inc_tail(eq);
+ }
+ ocrdma_ring_eq_db(dev, eq->q.id, true, true, eqe_popped);
+ /* Ring EQ doorbell with num_popped to 0 to enable interrupts again. */
+ if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
+ ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0);
+ return IRQ_HANDLED;
+}
+
+static void ocrdma_post_mqe(struct ocrdma_dev *dev, struct ocrdma_mqe *cmd)
+{
+ struct ocrdma_mqe *mqe;
+
+ dev->mqe_ctx.tag = dev->mq.sq.head;
+ dev->mqe_ctx.cmd_done = false;
+ mqe = ocrdma_get_mqe(dev);
+ cmd->hdr.tag_lo = dev->mq.sq.head;
+ ocrdma_copy_cpu_to_le32(mqe, cmd, sizeof(*mqe));
+ /* make sure descriptor is written before ringing doorbell */
+ wmb();
+ ocrdma_mq_inc_head(dev);
+ ocrdma_ring_mq_db(dev);
+}
+
+static int ocrdma_wait_mqe_cmpl(struct ocrdma_dev *dev)
+{
+ long status;
+ /* 30 sec timeout */
+ status = wait_event_timeout(dev->mqe_ctx.cmd_wait,
+ (dev->mqe_ctx.cmd_done != false),
+ msecs_to_jiffies(30000));
+ if (status)
+ return 0;
+ else
+ return -1;
+}
+
+/* issue a mailbox command on the MQ */
+static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe)
+{
+ int status = 0;
+ u16 cqe_status, ext_status;
+ struct ocrdma_mqe *rsp;
+
+ mutex_lock(&dev->mqe_ctx.lock);
+ ocrdma_post_mqe(dev, mqe);
+ status = ocrdma_wait_mqe_cmpl(dev);
+ if (status)
+ goto mbx_err;
+ cqe_status = dev->mqe_ctx.cqe_status;
+ ext_status = dev->mqe_ctx.ext_status;
+ rsp = ocrdma_get_mqe_rsp(dev);
+ ocrdma_copy_le32_to_cpu(mqe, rsp, (sizeof(*mqe)));
+ if (cqe_status || ext_status) {
+ ocrdma_err
+ ("%s() opcode=0x%x, cqe_status=0x%x, ext_status=0x%x\n",
+ __func__,
+ (rsp->u.rsp.subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>
+ OCRDMA_MBX_RSP_OPCODE_SHIFT, cqe_status, ext_status);
+ status = ocrdma_get_mbx_cqe_errno(cqe_status);
+ goto mbx_err;
+ }
+ if (mqe->u.rsp.status & OCRDMA_MBX_RSP_STATUS_MASK)
+ status = ocrdma_get_mbx_errno(mqe->u.rsp.status);
+mbx_err:
+ mutex_unlock(&dev->mqe_ctx.lock);
+ return status;
+}
+
+static void ocrdma_get_attr(struct ocrdma_dev *dev,
+ struct ocrdma_dev_attr *attr,
+ struct ocrdma_mbx_query_config *rsp)
+{
+ int max_q_mem;
+
+ attr->max_pd =
+ (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT;
+ attr->max_qp =
+ (rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT;
+ attr->max_send_sge = ((rsp->max_write_send_sge &
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT);
+ attr->max_recv_sge = (rsp->max_write_send_sge &
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT;
+ attr->max_ord_per_qp = (rsp->max_ird_ord_per_qp &
+ OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT;
+ attr->max_ird_per_qp = (rsp->max_ird_ord_per_qp &
+ OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT;
+ attr->cq_overflow_detect = (rsp->qp_srq_cq_ird_ord &
+ OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_SHIFT;
+ attr->srq_supported = (rsp->qp_srq_cq_ird_ord &
+ OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_SHIFT;
+ attr->local_ca_ack_delay = (rsp->max_pd_ca_ack_delay &
+ OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT;
+ attr->max_mr = rsp->max_mr;
+ attr->max_mr_size = ~0ull;
+ attr->max_fmr = 0;
+ attr->max_pages_per_frmr = rsp->max_pages_per_frmr;
+ attr->max_num_mr_pbl = rsp->max_num_mr_pbl;
+ attr->max_cqe = rsp->max_cq_cqes_per_cq &
+ OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_MASK;
+ attr->wqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs &
+ OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET) *
+ OCRDMA_WQE_STRIDE;
+ attr->rqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs &
+ OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_MASK) >>
+ OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET) *
+ OCRDMA_WQE_STRIDE;
+ attr->max_inline_data =
+ attr->wqe_size - (sizeof(struct ocrdma_hdr_wqe) +
+ sizeof(struct ocrdma_sge));
+ max_q_mem = OCRDMA_Q_PAGE_BASE_SIZE << (OCRDMA_MAX_Q_PAGE_SIZE_CNT - 1);
+ /* hw can queue one less then the configured size,
+ * so publish less by one to stack.
+ */
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ dev->attr.max_wqe = max_q_mem / dev->attr.wqe_size;
+ attr->ird = 1;
+ attr->ird_page_size = OCRDMA_MIN_Q_PAGE_SIZE;
+ attr->num_ird_pages = MAX_OCRDMA_IRD_PAGES;
+ } else
+ dev->attr.max_wqe = (max_q_mem / dev->attr.wqe_size) - 1;
+ dev->attr.max_rqe = (max_q_mem / dev->attr.rqe_size) - 1;
+}
+
+static int ocrdma_check_fw_config(struct ocrdma_dev *dev,
+ struct ocrdma_fw_conf_rsp *conf)
+{
+ u32 fn_mode;
+
+ fn_mode = conf->fn_mode & OCRDMA_FN_MODE_RDMA;
+ if (fn_mode != OCRDMA_FN_MODE_RDMA)
+ return -EINVAL;
+ dev->base_eqid = conf->base_eqid;
+ dev->max_eq = conf->max_eq;
+ dev->attr.max_cq = OCRDMA_MAX_CQ - 1;
+ return 0;
+}
+
+/* can be issued only during init time. */
+static int ocrdma_mbx_query_fw_ver(struct ocrdma_dev *dev)
+{
+ int status = -ENOMEM;
+ struct ocrdma_mqe *cmd;
+ struct ocrdma_fw_ver_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_VER, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
+ OCRDMA_CMD_GET_FW_VER,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_fw_ver_rsp *)cmd;
+ memset(&dev->attr.fw_ver[0], 0, sizeof(dev->attr.fw_ver));
+ memcpy(&dev->attr.fw_ver[0], &rsp->running_ver[0],
+ sizeof(rsp->running_ver));
+ ocrdma_le32_to_cpu(dev->attr.fw_ver, sizeof(rsp->running_ver));
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+/* can be issued only during init time. */
+static int ocrdma_mbx_query_fw_config(struct ocrdma_dev *dev)
+{
+ int status = -ENOMEM;
+ struct ocrdma_mqe *cmd;
+ struct ocrdma_fw_conf_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_CONFIG, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
+ OCRDMA_CMD_GET_FW_CONFIG,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_fw_conf_rsp *)cmd;
+ status = ocrdma_check_fw_config(dev, rsp);
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+static int ocrdma_mbx_query_dev(struct ocrdma_dev *dev)
+{
+ int status = -ENOMEM;
+ struct ocrdma_mbx_query_config *rsp;
+ struct ocrdma_mqe *cmd;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_CONFIG, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_mbx_query_config *)cmd;
+ ocrdma_get_attr(dev, &dev->attr, rsp);
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_alloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd)
+{
+ int status = -ENOMEM;
+ struct ocrdma_alloc_pd *cmd;
+ struct ocrdma_alloc_pd_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ if (pd->dpp_enabled)
+ cmd->enable_dpp_rsvd |= OCRDMA_ALLOC_PD_ENABLE_DPP;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_alloc_pd_rsp *)cmd;
+ pd->id = rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_PDID_MASK;
+ if (rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_DPP) {
+ pd->dpp_enabled = true;
+ pd->dpp_page = rsp->dpp_page_pdid >>
+ OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT;
+ } else {
+ pd->dpp_enabled = false;
+ pd->num_dpp_qp = 0;
+ }
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd)
+{
+ int status = -ENOMEM;
+ struct ocrdma_dealloc_pd *cmd;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->id = pd->id;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ kfree(cmd);
+ return status;
+}
+
+static int ocrdma_build_q_conf(u32 *num_entries, int entry_size,
+ int *num_pages, int *page_size)
+{
+ int i;
+ int mem_size;
+
+ *num_entries = roundup_pow_of_two(*num_entries);
+ mem_size = *num_entries * entry_size;
+ /* find the possible lowest possible multiplier */
+ for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) {
+ if (mem_size <= (OCRDMA_Q_PAGE_BASE_SIZE << i))
+ break;
+ }
+ if (i >= OCRDMA_MAX_Q_PAGE_SIZE_CNT)
+ return -EINVAL;
+ mem_size = roundup(mem_size,
+ ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES));
+ *num_pages =
+ mem_size / ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES);
+ *page_size = ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES);
+ *num_entries = mem_size / entry_size;
+ return 0;
+}
+
+static int ocrdma_mbx_create_ah_tbl(struct ocrdma_dev *dev)
+{
+ int i ;
+ int status = 0;
+ int max_ah;
+ struct ocrdma_create_ah_tbl *cmd;
+ struct ocrdma_create_ah_tbl_rsp *rsp;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ dma_addr_t pa;
+ struct ocrdma_pbe *pbes;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_AH_TBL, sizeof(*cmd));
+ if (!cmd)
+ return status;
+
+ max_ah = OCRDMA_MAX_AH;
+ dev->av_tbl.size = sizeof(struct ocrdma_av) * max_ah;
+
+ /* number of PBEs in PBL */
+ cmd->ah_conf = (OCRDMA_AH_TBL_PAGES <<
+ OCRDMA_CREATE_AH_NUM_PAGES_SHIFT) &
+ OCRDMA_CREATE_AH_NUM_PAGES_MASK;
+
+ /* page size */
+ for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) {
+ if (PAGE_SIZE == (OCRDMA_MIN_Q_PAGE_SIZE << i))
+ break;
+ }
+ cmd->ah_conf |= (i << OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT) &
+ OCRDMA_CREATE_AH_PAGE_SIZE_MASK;
+
+ /* ah_entry size */
+ cmd->ah_conf |= (sizeof(struct ocrdma_av) <<
+ OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT) &
+ OCRDMA_CREATE_AH_ENTRY_SIZE_MASK;
+
+ dev->av_tbl.pbl.va = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
+ &dev->av_tbl.pbl.pa,
+ GFP_KERNEL);
+ if (dev->av_tbl.pbl.va == NULL)
+ goto mem_err;
+
+ dev->av_tbl.va = dma_alloc_coherent(&pdev->dev, dev->av_tbl.size,
+ &pa, GFP_KERNEL);
+ if (dev->av_tbl.va == NULL)
+ goto mem_err_ah;
+ dev->av_tbl.pa = pa;
+ dev->av_tbl.num_ah = max_ah;
+ memset(dev->av_tbl.va, 0, dev->av_tbl.size);
+
+ pbes = (struct ocrdma_pbe *)dev->av_tbl.pbl.va;
+ for (i = 0; i < dev->av_tbl.size / OCRDMA_MIN_Q_PAGE_SIZE; i++) {
+ pbes[i].pa_lo = (u32) (pa & 0xffffffff);
+ pbes[i].pa_hi = (u32) upper_32_bits(pa);
+ pa += PAGE_SIZE;
+ }
+ cmd->tbl_addr[0].lo = (u32)(dev->av_tbl.pbl.pa & 0xFFFFFFFF);
+ cmd->tbl_addr[0].hi = (u32)upper_32_bits(dev->av_tbl.pbl.pa);
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_create_ah_tbl_rsp *)cmd;
+ dev->av_tbl.ahid = rsp->ahid & 0xFFFF;
+ kfree(cmd);
+ return 0;
+
+mbx_err:
+ dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va,
+ dev->av_tbl.pa);
+ dev->av_tbl.va = NULL;
+mem_err_ah:
+ dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va,
+ dev->av_tbl.pbl.pa);
+ dev->av_tbl.pbl.va = NULL;
+ dev->av_tbl.size = 0;
+mem_err:
+ kfree(cmd);
+ return status;
+}
+
+static void ocrdma_mbx_delete_ah_tbl(struct ocrdma_dev *dev)
+{
+ struct ocrdma_delete_ah_tbl *cmd;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+
+ if (dev->av_tbl.va == NULL)
+ return;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_AH_TBL, sizeof(*cmd));
+ if (!cmd)
+ return;
+ cmd->ahid = dev->av_tbl.ahid;
+
+ ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va,
+ dev->av_tbl.pa);
+ dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va,
+ dev->av_tbl.pbl.pa);
+ kfree(cmd);
+}
+
+/* Multiple CQs uses the EQ. This routine returns least used
+ * EQ to associate with CQ. This will distributes the interrupt
+ * processing and CPU load to associated EQ, vector and so to that CPU.
+ */
+static u16 ocrdma_bind_eq(struct ocrdma_dev *dev)
+{
+ int i, selected_eq = 0, cq_cnt = 0;
+ u16 eq_id;
+
+ mutex_lock(&dev->dev_lock);
+ cq_cnt = dev->qp_eq_tbl[0].cq_cnt;
+ eq_id = dev->qp_eq_tbl[0].q.id;
+ /* find the EQ which is has the least number of
+ * CQs associated with it.
+ */
+ for (i = 0; i < dev->eq_cnt; i++) {
+ if (dev->qp_eq_tbl[i].cq_cnt < cq_cnt) {
+ cq_cnt = dev->qp_eq_tbl[i].cq_cnt;
+ eq_id = dev->qp_eq_tbl[i].q.id;
+ selected_eq = i;
+ }
+ }
+ dev->qp_eq_tbl[selected_eq].cq_cnt += 1;
+ mutex_unlock(&dev->dev_lock);
+ return eq_id;
+}
+
+static void ocrdma_unbind_eq(struct ocrdma_dev *dev, u16 eq_id)
+{
+ int i;
+
+ mutex_lock(&dev->dev_lock);
+ for (i = 0; i < dev->eq_cnt; i++) {
+ if (dev->qp_eq_tbl[i].q.id != eq_id)
+ continue;
+ dev->qp_eq_tbl[i].cq_cnt -= 1;
+ break;
+ }
+ mutex_unlock(&dev->dev_lock);
+}
+
+int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
+ int entries, int dpp_cq)
+{
+ int status = -ENOMEM; int max_hw_cqe;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ struct ocrdma_create_cq *cmd;
+ struct ocrdma_create_cq_rsp *rsp;
+ u32 hw_pages, cqe_size, page_size, cqe_count;
+
+ if (dpp_cq)
+ return -EINVAL;
+ if (entries > dev->attr.max_cqe) {
+ ocrdma_err("%s(%d) max_cqe=0x%x, requester_cqe=0x%x\n",
+ __func__, dev->id, dev->attr.max_cqe, entries);
+ return -EINVAL;
+ }
+ if (dpp_cq && (dev->nic_info.dev_family != OCRDMA_GEN2_FAMILY))
+ return -EINVAL;
+
+ if (dpp_cq) {
+ cq->max_hw_cqe = 1;
+ max_hw_cqe = 1;
+ cqe_size = OCRDMA_DPP_CQE_SIZE;
+ hw_pages = 1;
+ } else {
+ cq->max_hw_cqe = dev->attr.max_cqe;
+ max_hw_cqe = dev->attr.max_cqe;
+ cqe_size = sizeof(struct ocrdma_cqe);
+ hw_pages = OCRDMA_CREATE_CQ_MAX_PAGES;
+ }
+
+ cq->len = roundup(max_hw_cqe * cqe_size, OCRDMA_MIN_Q_PAGE_SIZE);
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_CQ, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ ocrdma_init_mch(&cmd->cmd.req, OCRDMA_CMD_CREATE_CQ,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+ cq->va = dma_alloc_coherent(&pdev->dev, cq->len, &cq->pa, GFP_KERNEL);
+ if (!cq->va) {
+ status = -ENOMEM;
+ goto mem_err;
+ }
+ memset(cq->va, 0, cq->len);
+ page_size = cq->len / hw_pages;
+ cmd->cmd.pgsz_pgcnt = (page_size / OCRDMA_MIN_Q_PAGE_SIZE) <<
+ OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT;
+ cmd->cmd.pgsz_pgcnt |= hw_pages;
+ cmd->cmd.ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
+
+ if (dev->eq_cnt < 0)
+ goto eq_err;
+ cq->eqn = ocrdma_bind_eq(dev);
+ cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER2;
+ cqe_count = cq->len / cqe_size;
+ if (cqe_count > 1024)
+ /* Set cnt to 3 to indicate more than 1024 cq entries */
+ cmd->cmd.ev_cnt_flags |= (0x3 << OCRDMA_CREATE_CQ_CNT_SHIFT);
+ else {
+ u8 count = 0;
+ switch (cqe_count) {
+ case 256:
+ count = 0;
+ break;
+ case 512:
+ count = 1;
+ break;
+ case 1024:
+ count = 2;
+ break;
+ default:
+ goto mbx_err;
+ }
+ cmd->cmd.ev_cnt_flags |= (count << OCRDMA_CREATE_CQ_CNT_SHIFT);
+ }
+ /* shared eq between all the consumer cqs. */
+ cmd->cmd.eqn = cq->eqn;
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ if (dpp_cq)
+ cmd->cmd.pgsz_pgcnt |= OCRDMA_CREATE_CQ_DPP <<
+ OCRDMA_CREATE_CQ_TYPE_SHIFT;
+ cq->phase_change = false;
+ cmd->cmd.cqe_count = (cq->len / cqe_size);
+ } else {
+ cmd->cmd.cqe_count = (cq->len / cqe_size) - 1;
+ cmd->cmd.ev_cnt_flags |= OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID;
+ cq->phase_change = true;
+ }
+
+ ocrdma_build_q_pages(&cmd->cmd.pa[0], hw_pages, cq->pa, page_size);
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+
+ rsp = (struct ocrdma_create_cq_rsp *)cmd;
+ cq->id = (u16) (rsp->rsp.cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
+ kfree(cmd);
+ return 0;
+mbx_err:
+ ocrdma_unbind_eq(dev, cq->eqn);
+eq_err:
+ dma_free_coherent(&pdev->dev, cq->len, cq->va, cq->pa);
+mem_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_destroy_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq)
+{
+ int status = -ENOMEM;
+ struct ocrdma_destroy_cq *cmd;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_CQ, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ ocrdma_init_mch(&cmd->req, OCRDMA_CMD_DELETE_CQ,
+ OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
+
+ cmd->bypass_flush_qid |=
+ (cq->id << OCRDMA_DESTROY_CQ_QID_SHIFT) &
+ OCRDMA_DESTROY_CQ_QID_MASK;
+
+ ocrdma_unbind_eq(dev, cq->eqn);
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ dma_free_coherent(&dev->nic_info.pdev->dev, cq->len, cq->va, cq->pa);
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr,
+ u32 pdid, int addr_check)
+{
+ int status = -ENOMEM;
+ struct ocrdma_alloc_lkey *cmd;
+ struct ocrdma_alloc_lkey_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_LKEY, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->pdid = pdid;
+ cmd->pbl_sz_flags |= addr_check;
+ cmd->pbl_sz_flags |= (hwmr->fr_mr << OCRDMA_ALLOC_LKEY_FMR_SHIFT);
+ cmd->pbl_sz_flags |=
+ (hwmr->remote_wr << OCRDMA_ALLOC_LKEY_REMOTE_WR_SHIFT);
+ cmd->pbl_sz_flags |=
+ (hwmr->remote_rd << OCRDMA_ALLOC_LKEY_REMOTE_RD_SHIFT);
+ cmd->pbl_sz_flags |=
+ (hwmr->local_wr << OCRDMA_ALLOC_LKEY_LOCAL_WR_SHIFT);
+ cmd->pbl_sz_flags |=
+ (hwmr->remote_atomic << OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_SHIFT);
+ cmd->pbl_sz_flags |=
+ (hwmr->num_pbls << OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT);
+
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_alloc_lkey_rsp *)cmd;
+ hwmr->lkey = rsp->lrkey;
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *dev, int fr_mr, u32 lkey)
+{
+ int status = -ENOMEM;
+ struct ocrdma_dealloc_lkey *cmd;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_LKEY, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ cmd->lkey = lkey;
+ cmd->rsvd_frmr = fr_mr ? 1 : 0;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+static int ocrdma_mbx_reg_mr(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr,
+ u32 pdid, u32 pbl_cnt, u32 pbe_size, u32 last)
+{
+ int status = -ENOMEM;
+ int i;
+ struct ocrdma_reg_nsmr *cmd;
+ struct ocrdma_reg_nsmr_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ cmd->num_pbl_pdid =
+ pdid | (hwmr->num_pbls << OCRDMA_REG_NSMR_NUM_PBL_SHIFT);
+
+ cmd->flags_hpage_pbe_sz |= (hwmr->remote_wr <<
+ OCRDMA_REG_NSMR_REMOTE_WR_SHIFT);
+ cmd->flags_hpage_pbe_sz |= (hwmr->remote_rd <<
+ OCRDMA_REG_NSMR_REMOTE_RD_SHIFT);
+ cmd->flags_hpage_pbe_sz |= (hwmr->local_wr <<
+ OCRDMA_REG_NSMR_LOCAL_WR_SHIFT);
+ cmd->flags_hpage_pbe_sz |= (hwmr->remote_atomic <<
+ OCRDMA_REG_NSMR_REMOTE_ATOMIC_SHIFT);
+ cmd->flags_hpage_pbe_sz |= (hwmr->mw_bind <<
+ OCRDMA_REG_NSMR_BIND_MEMWIN_SHIFT);
+ cmd->flags_hpage_pbe_sz |= (last << OCRDMA_REG_NSMR_LAST_SHIFT);
+
+ cmd->flags_hpage_pbe_sz |= (hwmr->pbe_size / OCRDMA_MIN_HPAGE_SIZE);
+ cmd->flags_hpage_pbe_sz |= (hwmr->pbl_size / OCRDMA_MIN_HPAGE_SIZE) <<
+ OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT;
+ cmd->totlen_low = hwmr->len;
+ cmd->totlen_high = upper_32_bits(hwmr->len);
+ cmd->fbo_low = (u32) (hwmr->fbo & 0xffffffff);
+ cmd->fbo_high = (u32) upper_32_bits(hwmr->fbo);
+ cmd->va_loaddr = (u32) hwmr->va;
+ cmd->va_hiaddr = (u32) upper_32_bits(hwmr->va);
+
+ for (i = 0; i < pbl_cnt; i++) {
+ cmd->pbl[i].lo = (u32) (hwmr->pbl_table[i].pa & 0xffffffff);
+ cmd->pbl[i].hi = upper_32_bits(hwmr->pbl_table[i].pa);
+ }
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_reg_nsmr_rsp *)cmd;
+ hwmr->lkey = rsp->lrkey;
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+static int ocrdma_mbx_reg_mr_cont(struct ocrdma_dev *dev,
+ struct ocrdma_hw_mr *hwmr, u32 pbl_cnt,
+ u32 pbl_offset, u32 last)
+{
+ int status = -ENOMEM;
+ int i;
+ struct ocrdma_reg_nsmr_cont *cmd;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR_CONT, sizeof(*cmd));
+ if (!cmd)
+ return -ENOMEM;
+ cmd->lrkey = hwmr->lkey;
+ cmd->num_pbl_offset = (pbl_cnt << OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT) |
+ (pbl_offset & OCRDMA_REG_NSMR_CONT_PBL_SHIFT_MASK);
+ cmd->last = last << OCRDMA_REG_NSMR_CONT_LAST_SHIFT;
+
+ for (i = 0; i < pbl_cnt; i++) {
+ cmd->pbl[i].lo =
+ (u32) (hwmr->pbl_table[i + pbl_offset].pa & 0xffffffff);
+ cmd->pbl[i].hi =
+ upper_32_bits(hwmr->pbl_table[i + pbl_offset].pa);
+ }
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_reg_mr(struct ocrdma_dev *dev,
+ struct ocrdma_hw_mr *hwmr, u32 pdid, int acc)
+{
+ int status;
+ u32 last = 0;
+ u32 cur_pbl_cnt, pbl_offset;
+ u32 pending_pbl_cnt = hwmr->num_pbls;
+
+ pbl_offset = 0;
+ cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL);
+ if (cur_pbl_cnt == pending_pbl_cnt)
+ last = 1;
+
+ status = ocrdma_mbx_reg_mr(dev, hwmr, pdid,
+ cur_pbl_cnt, hwmr->pbe_size, last);
+ if (status) {
+ ocrdma_err("%s() status=%d\n", __func__, status);
+ return status;
+ }
+ /* if there is no more pbls to register then exit. */
+ if (last)
+ return 0;
+
+ while (!last) {
+ pbl_offset += cur_pbl_cnt;
+ pending_pbl_cnt -= cur_pbl_cnt;
+ cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL);
+ /* if we reach the end of the pbls, then need to set the last
+ * bit, indicating no more pbls to register for this memory key.
+ */
+ if (cur_pbl_cnt == pending_pbl_cnt)
+ last = 1;
+
+ status = ocrdma_mbx_reg_mr_cont(dev, hwmr, cur_pbl_cnt,
+ pbl_offset, last);
+ if (status)
+ break;
+ }
+ if (status)
+ ocrdma_err("%s() err. status=%d\n", __func__, status);
+
+ return status;
+}
+
+bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp)
+{
+ struct ocrdma_qp *tmp;
+ bool found = false;
+ list_for_each_entry(tmp, &cq->sq_head, sq_entry) {
+ if (qp == tmp) {
+ found = true;
+ break;
+ }
+ }
+ return found;
+}
+
+bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp)
+{
+ struct ocrdma_qp *tmp;
+ bool found = false;
+ list_for_each_entry(tmp, &cq->rq_head, rq_entry) {
+ if (qp == tmp) {
+ found = true;
+ break;
+ }
+ }
+ return found;
+}
+
+void ocrdma_flush_qp(struct ocrdma_qp *qp)
+{
+ bool found;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qp->dev->flush_q_lock, flags);
+ found = ocrdma_is_qp_in_sq_flushlist(qp->sq_cq, qp);
+ if (!found)
+ list_add_tail(&qp->sq_entry, &qp->sq_cq->sq_head);
+ if (!qp->srq) {
+ found = ocrdma_is_qp_in_rq_flushlist(qp->rq_cq, qp);
+ if (!found)
+ list_add_tail(&qp->rq_entry, &qp->rq_cq->rq_head);
+ }
+ spin_unlock_irqrestore(&qp->dev->flush_q_lock, flags);
+}
+
+int ocrdma_qp_state_machine(struct ocrdma_qp *qp, enum ib_qp_state new_ib_state,
+ enum ib_qp_state *old_ib_state)
+{
+ unsigned long flags;
+ int status = 0;
+ enum ocrdma_qp_state new_state;
+ new_state = get_ocrdma_qp_state(new_ib_state);
+
+ /* sync with wqe and rqe posting */
+ spin_lock_irqsave(&qp->q_lock, flags);
+
+ if (old_ib_state)
+ *old_ib_state = get_ibqp_state(qp->state);
+ if (new_state == qp->state) {
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ return 1;
+ }
+
+ switch (qp->state) {
+ case OCRDMA_QPS_RST:
+ switch (new_state) {
+ case OCRDMA_QPS_RST:
+ case OCRDMA_QPS_INIT:
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_INIT:
+ /* qps: INIT->XXX */
+ switch (new_state) {
+ case OCRDMA_QPS_INIT:
+ case OCRDMA_QPS_RTR:
+ break;
+ case OCRDMA_QPS_ERR:
+ ocrdma_flush_qp(qp);
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_RTR:
+ /* qps: RTS->XXX */
+ switch (new_state) {
+ case OCRDMA_QPS_RTS:
+ break;
+ case OCRDMA_QPS_ERR:
+ ocrdma_flush_qp(qp);
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_RTS:
+ /* qps: RTS->XXX */
+ switch (new_state) {
+ case OCRDMA_QPS_SQD:
+ case OCRDMA_QPS_SQE:
+ break;
+ case OCRDMA_QPS_ERR:
+ ocrdma_flush_qp(qp);
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_SQD:
+ /* qps: SQD->XXX */
+ switch (new_state) {
+ case OCRDMA_QPS_RTS:
+ case OCRDMA_QPS_SQE:
+ case OCRDMA_QPS_ERR:
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_SQE:
+ switch (new_state) {
+ case OCRDMA_QPS_RTS:
+ case OCRDMA_QPS_ERR:
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ case OCRDMA_QPS_ERR:
+ /* qps: ERR->XXX */
+ switch (new_state) {
+ case OCRDMA_QPS_RST:
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ };
+ if (!status)
+ qp->state = new_state;
+
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ return status;
+}
+
+static u32 ocrdma_set_create_qp_mbx_access_flags(struct ocrdma_qp *qp)
+{
+ u32 flags = 0;
+ if (qp->cap_flags & OCRDMA_QP_INB_RD)
+ flags |= OCRDMA_CREATE_QP_REQ_INB_RDEN_MASK;
+ if (qp->cap_flags & OCRDMA_QP_INB_WR)
+ flags |= OCRDMA_CREATE_QP_REQ_INB_WREN_MASK;
+ if (qp->cap_flags & OCRDMA_QP_MW_BIND)
+ flags |= OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_MASK;
+ if (qp->cap_flags & OCRDMA_QP_LKEY0)
+ flags |= OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_MASK;
+ if (qp->cap_flags & OCRDMA_QP_FAST_REG)
+ flags |= OCRDMA_CREATE_QP_REQ_FMR_EN_MASK;
+ return flags;
+}
+
+static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd,
+ struct ib_qp_init_attr *attrs,
+ struct ocrdma_qp *qp)
+{
+ int status;
+ u32 len, hw_pages, hw_page_size;
+ dma_addr_t pa;
+ struct ocrdma_dev *dev = qp->dev;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ u32 max_wqe_allocated;
+ u32 max_sges = attrs->cap.max_send_sge;
+
+ max_wqe_allocated = attrs->cap.max_send_wr;
+ /* need to allocate one extra to for GEN1 family */
+ if (dev->nic_info.dev_family != OCRDMA_GEN2_FAMILY)
+ max_wqe_allocated += 1;
+
+ status = ocrdma_build_q_conf(&max_wqe_allocated,
+ dev->attr.wqe_size, &hw_pages, &hw_page_size);
+ if (status) {
+ ocrdma_err("%s() req. max_send_wr=0x%x\n", __func__,
+ max_wqe_allocated);
+ return -EINVAL;
+ }
+ qp->sq.max_cnt = max_wqe_allocated;
+ len = (hw_pages * hw_page_size);
+
+ qp->sq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
+ if (!qp->sq.va)
+ return -EINVAL;
+ memset(qp->sq.va, 0, len);
+ qp->sq.len = len;
+ qp->sq.pa = pa;
+ qp->sq.entry_size = dev->attr.wqe_size;
+ ocrdma_build_q_pages(&cmd->wq_addr[0], hw_pages, pa, hw_page_size);
+
+ cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE)
+ << OCRDMA_CREATE_QP_REQ_SQ_PAGE_SIZE_SHIFT);
+ cmd->num_wq_rq_pages |= (hw_pages <<
+ OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_MASK;
+ cmd->max_sge_send_write |= (max_sges <<
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_MASK;
+ cmd->max_sge_send_write |= (max_sges <<
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_MASK;
+ cmd->max_wqe_rqe |= (ilog2(qp->sq.max_cnt) <<
+ OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_WQE_MASK;
+ cmd->wqe_rqe_size |= (dev->attr.wqe_size <<
+ OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_WQE_SIZE_MASK;
+ return 0;
+}
+
+static int ocrdma_set_create_qp_rq_cmd(struct ocrdma_create_qp_req *cmd,
+ struct ib_qp_init_attr *attrs,
+ struct ocrdma_qp *qp)
+{
+ int status;
+ u32 len, hw_pages, hw_page_size;
+ dma_addr_t pa = 0;
+ struct ocrdma_dev *dev = qp->dev;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ u32 max_rqe_allocated = attrs->cap.max_recv_wr + 1;
+
+ status = ocrdma_build_q_conf(&max_rqe_allocated, dev->attr.rqe_size,
+ &hw_pages, &hw_page_size);
+ if (status) {
+ ocrdma_err("%s() req. max_recv_wr=0x%x\n", __func__,
+ attrs->cap.max_recv_wr + 1);
+ return status;
+ }
+ qp->rq.max_cnt = max_rqe_allocated;
+ len = (hw_pages * hw_page_size);
+
+ qp->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
+ if (!qp->rq.va)
+ return status;
+ memset(qp->rq.va, 0, len);
+ qp->rq.pa = pa;
+ qp->rq.len = len;
+ qp->rq.entry_size = dev->attr.rqe_size;
+
+ ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size);
+ cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE) <<
+ OCRDMA_CREATE_QP_REQ_RQ_PAGE_SIZE_SHIFT);
+ cmd->num_wq_rq_pages |=
+ (hw_pages << OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_MASK;
+ cmd->max_sge_recv_flags |= (attrs->cap.max_recv_sge <<
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_MASK;
+ cmd->max_wqe_rqe |= (ilog2(qp->rq.max_cnt) <<
+ OCRDMA_CREATE_QP_REQ_MAX_RQE_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_RQE_MASK;
+ cmd->wqe_rqe_size |= (dev->attr.rqe_size <<
+ OCRDMA_CREATE_QP_REQ_RQE_SIZE_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_RQE_SIZE_MASK;
+ return 0;
+}
+
+static void ocrdma_set_create_qp_dpp_cmd(struct ocrdma_create_qp_req *cmd,
+ struct ocrdma_pd *pd,
+ struct ocrdma_qp *qp,
+ u8 enable_dpp_cq, u16 dpp_cq_id)
+{
+ pd->num_dpp_qp--;
+ qp->dpp_enabled = true;
+ cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK;
+ if (!enable_dpp_cq)
+ return;
+ cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK;
+ cmd->dpp_credits_cqid = dpp_cq_id;
+ cmd->dpp_credits_cqid |= OCRDMA_CREATE_QP_REQ_DPP_CREDIT_LIMIT <<
+ OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT;
+}
+
+static int ocrdma_set_create_qp_ird_cmd(struct ocrdma_create_qp_req *cmd,
+ struct ocrdma_qp *qp)
+{
+ struct ocrdma_dev *dev = qp->dev;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ dma_addr_t pa = 0;
+ int ird_page_size = dev->attr.ird_page_size;
+ int ird_q_len = dev->attr.num_ird_pages * ird_page_size;
+
+ if (dev->attr.ird == 0)
+ return 0;
+
+ qp->ird_q_va = dma_alloc_coherent(&pdev->dev, ird_q_len,
+ &pa, GFP_KERNEL);
+ if (!qp->ird_q_va)
+ return -ENOMEM;
+ memset(qp->ird_q_va, 0, ird_q_len);
+ ocrdma_build_q_pages(&cmd->ird_addr[0], dev->attr.num_ird_pages,
+ pa, ird_page_size);
+ return 0;
+}
+
+static void ocrdma_get_create_qp_rsp(struct ocrdma_create_qp_rsp *rsp,
+ struct ocrdma_qp *qp,
+ struct ib_qp_init_attr *attrs,
+ u16 *dpp_offset, u16 *dpp_credit_lmt)
+{
+ u32 max_wqe_allocated, max_rqe_allocated;
+ qp->id = rsp->qp_id & OCRDMA_CREATE_QP_RSP_QP_ID_MASK;
+ qp->rq.dbid = rsp->sq_rq_id & OCRDMA_CREATE_QP_RSP_RQ_ID_MASK;
+ qp->sq.dbid = rsp->sq_rq_id >> OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT;
+ qp->max_ird = rsp->max_ord_ird & OCRDMA_CREATE_QP_RSP_MAX_IRD_MASK;
+ qp->max_ord = (rsp->max_ord_ird >> OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT);
+ qp->dpp_enabled = false;
+ if (rsp->dpp_response & OCRDMA_CREATE_QP_RSP_DPP_ENABLED_MASK) {
+ qp->dpp_enabled = true;
+ *dpp_credit_lmt = (rsp->dpp_response &
+ OCRDMA_CREATE_QP_RSP_DPP_CREDITS_MASK) >>
+ OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT;
+ *dpp_offset = (rsp->dpp_response &
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_MASK) >>
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT;
+ }
+ max_wqe_allocated =
+ rsp->max_wqe_rqe >> OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT;
+ max_wqe_allocated = 1 << max_wqe_allocated;
+ max_rqe_allocated = 1 << ((u16)rsp->max_wqe_rqe);
+
+ if (qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ qp->sq.free_delta = 0;
+ qp->rq.free_delta = 1;
+ } else
+ qp->sq.free_delta = 1;
+
+ qp->sq.max_cnt = max_wqe_allocated;
+ qp->sq.max_wqe_idx = max_wqe_allocated - 1;
+
+ if (!attrs->srq) {
+ qp->rq.max_cnt = max_rqe_allocated;
+ qp->rq.max_wqe_idx = max_rqe_allocated - 1;
+ qp->rq.free_delta = 1;
+ }
+}
+
+int ocrdma_mbx_create_qp(struct ocrdma_qp *qp, struct ib_qp_init_attr *attrs,
+ u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
+ u16 *dpp_credit_lmt)
+{
+ int status = -ENOMEM;
+ u32 flags = 0;
+ struct ocrdma_dev *dev = qp->dev;
+ struct ocrdma_pd *pd = qp->pd;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ struct ocrdma_cq *cq;
+ struct ocrdma_create_qp_req *cmd;
+ struct ocrdma_create_qp_rsp *rsp;
+ int qptype;
+
+ switch (attrs->qp_type) {
+ case IB_QPT_GSI:
+ qptype = OCRDMA_QPT_GSI;
+ break;
+ case IB_QPT_RC:
+ qptype = OCRDMA_QPT_RC;
+ break;
+ case IB_QPT_UD:
+ qptype = OCRDMA_QPT_UD;
+ break;
+ default:
+ return -EINVAL;
+ };
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->type_pgsz_pdn |= (qptype << OCRDMA_CREATE_QP_REQ_QPT_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_QPT_MASK;
+ status = ocrdma_set_create_qp_sq_cmd(cmd, attrs, qp);
+ if (status)
+ goto sq_err;
+
+ if (attrs->srq) {
+ struct ocrdma_srq *srq = get_ocrdma_srq(attrs->srq);
+ cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_USE_SRQ_MASK;
+ cmd->rq_addr[0].lo = srq->id;
+ qp->srq = srq;
+ } else {
+ status = ocrdma_set_create_qp_rq_cmd(cmd, attrs, qp);
+ if (status)
+ goto rq_err;
+ }
+
+ status = ocrdma_set_create_qp_ird_cmd(cmd, qp);
+ if (status)
+ goto mbx_err;
+
+ cmd->type_pgsz_pdn |= (pd->id << OCRDMA_CREATE_QP_REQ_PD_ID_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_PD_ID_MASK;
+
+ flags = ocrdma_set_create_qp_mbx_access_flags(qp);
+
+ cmd->max_sge_recv_flags |= flags;
+ cmd->max_ord_ird |= (dev->attr.max_ord_per_qp <<
+ OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_ORD_MASK;
+ cmd->max_ord_ird |= (dev->attr.max_ird_per_qp <<
+ OCRDMA_CREATE_QP_REQ_MAX_IRD_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_MAX_IRD_MASK;
+ cq = get_ocrdma_cq(attrs->send_cq);
+ cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_WQ_CQID_MASK;
+ qp->sq_cq = cq;
+ cq = get_ocrdma_cq(attrs->recv_cq);
+ cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_RQ_CQID_SHIFT) &
+ OCRDMA_CREATE_QP_REQ_RQ_CQID_MASK;
+ qp->rq_cq = cq;
+
+ if (pd->dpp_enabled && attrs->cap.max_inline_data && pd->num_dpp_qp &&
+ (attrs->cap.max_inline_data <= dev->attr.max_inline_data))
+ ocrdma_set_create_qp_dpp_cmd(cmd, pd, qp, enable_dpp_cq,
+ dpp_cq_id);
+
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_create_qp_rsp *)cmd;
+ ocrdma_get_create_qp_rsp(rsp, qp, attrs, dpp_offset, dpp_credit_lmt);
+ qp->state = OCRDMA_QPS_RST;
+ kfree(cmd);
+ return 0;
+mbx_err:
+ if (qp->rq.va)
+ dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa);
+rq_err:
+ ocrdma_err("%s(%d) rq_err\n", __func__, dev->id);
+ dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa);
+sq_err:
+ ocrdma_err("%s(%d) sq_err\n", __func__, dev->id);
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_query_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
+ struct ocrdma_qp_params *param)
+{
+ int status = -ENOMEM;
+ struct ocrdma_query_qp *cmd;
+ struct ocrdma_query_qp_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_QP, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->qp_id = qp->id;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_query_qp_rsp *)cmd;
+ memcpy(param, &rsp->params, sizeof(struct ocrdma_qp_params));
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_resolve_dgid(struct ocrdma_dev *dev, union ib_gid *dgid,
+ u8 *mac_addr)
+{
+ struct in6_addr in6;
+
+ memcpy(&in6, dgid, sizeof in6);
+ if (rdma_is_multicast_addr(&in6))
+ rdma_get_mcast_mac(&in6, mac_addr);
+ else if (rdma_link_local_addr(&in6))
+ rdma_get_ll_mac(&in6, mac_addr);
+ else {
+ ocrdma_err("%s() fail to resolve mac_addr.\n", __func__);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void ocrdma_set_av_params(struct ocrdma_qp *qp,
+ struct ocrdma_modify_qp *cmd,
+ struct ib_qp_attr *attrs)
+{
+ struct ib_ah_attr *ah_attr = &attrs->ah_attr;
+ union ib_gid sgid;
+ u32 vlan_id;
+ u8 mac_addr[6];
+ if ((ah_attr->ah_flags & IB_AH_GRH) == 0)
+ return;
+ cmd->params.tclass_sq_psn |=
+ (ah_attr->grh.traffic_class << OCRDMA_QP_PARAMS_TCLASS_SHIFT);
+ cmd->params.rnt_rc_sl_fl |=
+ (ah_attr->grh.flow_label & OCRDMA_QP_PARAMS_FLOW_LABEL_MASK);
+ cmd->params.hop_lmt_rq_psn |=
+ (ah_attr->grh.hop_limit << OCRDMA_QP_PARAMS_HOP_LMT_SHIFT);
+ cmd->flags |= OCRDMA_QP_PARA_FLOW_LBL_VALID;
+ memcpy(&cmd->params.dgid[0], &ah_attr->grh.dgid.raw[0],
+ sizeof(cmd->params.dgid));
+ ocrdma_query_gid(&qp->dev->ibdev, 1,
+ ah_attr->grh.sgid_index, &sgid);
+ qp->sgid_idx = ah_attr->grh.sgid_index;
+ memcpy(&cmd->params.sgid[0], &sgid.raw[0], sizeof(cmd->params.sgid));
+ ocrdma_resolve_dgid(qp->dev, &ah_attr->grh.dgid, &mac_addr[0]);
+ cmd->params.dmac_b0_to_b3 = mac_addr[0] | (mac_addr[1] << 8) |
+ (mac_addr[2] << 16) | (mac_addr[3] << 24);
+ /* convert them to LE format. */
+ ocrdma_cpu_to_le32(&cmd->params.dgid[0], sizeof(cmd->params.dgid));
+ ocrdma_cpu_to_le32(&cmd->params.sgid[0], sizeof(cmd->params.sgid));
+ cmd->params.vlan_dmac_b4_to_b5 = mac_addr[4] | (mac_addr[5] << 8);
+ vlan_id = rdma_get_vlan_id(&sgid);
+ if (vlan_id && (vlan_id < 0x1000)) {
+ cmd->params.vlan_dmac_b4_to_b5 |=
+ vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT;
+ cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID;
+ }
+}
+
+static int ocrdma_set_qp_params(struct ocrdma_qp *qp,
+ struct ocrdma_modify_qp *cmd,
+ struct ib_qp_attr *attrs, int attr_mask,
+ enum ib_qp_state old_qps)
+{
+ int status = 0;
+ struct net_device *netdev = qp->dev->nic_info.netdev;
+ int eth_mtu = iboe_get_mtu(netdev->mtu);
+
+ if (attr_mask & IB_QP_PKEY_INDEX) {
+ cmd->params.path_mtu_pkey_indx |= (attrs->pkey_index &
+ OCRDMA_QP_PARAMS_PKEY_INDEX_MASK);
+ cmd->flags |= OCRDMA_QP_PARA_PKEY_VALID;
+ }
+ if (attr_mask & IB_QP_QKEY) {
+ qp->qkey = attrs->qkey;
+ cmd->params.qkey = attrs->qkey;
+ cmd->flags |= OCRDMA_QP_PARA_QKEY_VALID;
+ }
+ if (attr_mask & IB_QP_AV)
+ ocrdma_set_av_params(qp, cmd, attrs);
+ else if (qp->qp_type == IB_QPT_GSI || qp->qp_type == IB_QPT_UD) {
+ /* set the default mac address for UD, GSI QPs */
+ cmd->params.dmac_b0_to_b3 = qp->dev->nic_info.mac_addr[0] |
+ (qp->dev->nic_info.mac_addr[1] << 8) |
+ (qp->dev->nic_info.mac_addr[2] << 16) |
+ (qp->dev->nic_info.mac_addr[3] << 24);
+ cmd->params.vlan_dmac_b4_to_b5 = qp->dev->nic_info.mac_addr[4] |
+ (qp->dev->nic_info.mac_addr[5] << 8);
+ }
+ if ((attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) &&
+ attrs->en_sqd_async_notify) {
+ cmd->params.max_sge_recv_flags |=
+ OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC;
+ cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID;
+ }
+ if (attr_mask & IB_QP_DEST_QPN) {
+ cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->dest_qp_num &
+ OCRDMA_QP_PARAMS_DEST_QPN_MASK);
+ cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID;
+ }
+ if (attr_mask & IB_QP_PATH_MTU) {
+ if (ib_mtu_enum_to_int(eth_mtu) <
+ ib_mtu_enum_to_int(attrs->path_mtu)) {
+ status = -EINVAL;
+ goto pmtu_err;
+ }
+ cmd->params.path_mtu_pkey_indx |=
+ (ib_mtu_enum_to_int(attrs->path_mtu) <<
+ OCRDMA_QP_PARAMS_PATH_MTU_SHIFT) &
+ OCRDMA_QP_PARAMS_PATH_MTU_MASK;
+ cmd->flags |= OCRDMA_QP_PARA_PMTU_VALID;
+ }
+ if (attr_mask & IB_QP_TIMEOUT) {
+ cmd->params.ack_to_rnr_rtc_dest_qpn |= attrs->timeout <<
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT;
+ cmd->flags |= OCRDMA_QP_PARA_ACK_TO_VALID;
+ }
+ if (attr_mask & IB_QP_RETRY_CNT) {
+ cmd->params.rnt_rc_sl_fl |= (attrs->retry_cnt <<
+ OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT) &
+ OCRDMA_QP_PARAMS_RETRY_CNT_MASK;
+ cmd->flags |= OCRDMA_QP_PARA_RETRY_CNT_VALID;
+ }
+ if (attr_mask & IB_QP_MIN_RNR_TIMER) {
+ cmd->params.rnt_rc_sl_fl |= (attrs->min_rnr_timer <<
+ OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT) &
+ OCRDMA_QP_PARAMS_RNR_NAK_TIMER_MASK;
+ cmd->flags |= OCRDMA_QP_PARA_RNT_VALID;
+ }
+ if (attr_mask & IB_QP_RNR_RETRY) {
+ cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->rnr_retry <<
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT)
+ & OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK;
+ cmd->flags |= OCRDMA_QP_PARA_RRC_VALID;
+ }
+ if (attr_mask & IB_QP_SQ_PSN) {
+ cmd->params.tclass_sq_psn |= (attrs->sq_psn & 0x00ffffff);
+ cmd->flags |= OCRDMA_QP_PARA_SQPSN_VALID;
+ }
+ if (attr_mask & IB_QP_RQ_PSN) {
+ cmd->params.hop_lmt_rq_psn |= (attrs->rq_psn & 0x00ffffff);
+ cmd->flags |= OCRDMA_QP_PARA_RQPSN_VALID;
+ }
+ if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
+ if (attrs->max_rd_atomic > qp->dev->attr.max_ord_per_qp) {
+ status = -EINVAL;
+ goto pmtu_err;
+ }
+ qp->max_ord = attrs->max_rd_atomic;
+ cmd->flags |= OCRDMA_QP_PARA_MAX_ORD_VALID;
+ }
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
+ if (attrs->max_dest_rd_atomic > qp->dev->attr.max_ird_per_qp) {
+ status = -EINVAL;
+ goto pmtu_err;
+ }
+ qp->max_ird = attrs->max_dest_rd_atomic;
+ cmd->flags |= OCRDMA_QP_PARA_MAX_IRD_VALID;
+ }
+ cmd->params.max_ord_ird = (qp->max_ord <<
+ OCRDMA_QP_PARAMS_MAX_ORD_SHIFT) |
+ (qp->max_ird & OCRDMA_QP_PARAMS_MAX_IRD_MASK);
+pmtu_err:
+ return status;
+}
+
+int ocrdma_mbx_modify_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
+ struct ib_qp_attr *attrs, int attr_mask,
+ enum ib_qp_state old_qps)
+{
+ int status = -ENOMEM;
+ struct ocrdma_modify_qp *cmd;
+ struct ocrdma_modify_qp_rsp *rsp;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_QP, sizeof(*cmd));
+ if (!cmd)
+ return status;
+
+ cmd->params.id = qp->id;
+ cmd->flags = 0;
+ if (attr_mask & IB_QP_STATE) {
+ cmd->params.max_sge_recv_flags |=
+ (get_ocrdma_qp_state(attrs->qp_state) <<
+ OCRDMA_QP_PARAMS_STATE_SHIFT) &
+ OCRDMA_QP_PARAMS_STATE_MASK;
+ cmd->flags |= OCRDMA_QP_PARA_QPS_VALID;
+ } else
+ cmd->params.max_sge_recv_flags |=
+ (qp->state << OCRDMA_QP_PARAMS_STATE_SHIFT) &
+ OCRDMA_QP_PARAMS_STATE_MASK;
+ status = ocrdma_set_qp_params(qp, cmd, attrs, attr_mask, old_qps);
+ if (status)
+ goto mbx_err;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_modify_qp_rsp *)cmd;
+mbx_err:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_destroy_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp)
+{
+ int status = -ENOMEM;
+ struct ocrdma_destroy_qp *cmd;
+ struct ocrdma_destroy_qp_rsp *rsp;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_QP, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->qp_id = qp->id;
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_destroy_qp_rsp *)cmd;
+mbx_err:
+ kfree(cmd);
+ if (qp->sq.va)
+ dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa);
+ if (!qp->srq && qp->rq.va)
+ dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa);
+ if (qp->dpp_enabled)
+ qp->pd->num_dpp_qp++;
+ return status;
+}
+
+int ocrdma_mbx_create_srq(struct ocrdma_srq *srq,
+ struct ib_srq_init_attr *srq_attr,
+ struct ocrdma_pd *pd)
+{
+ int status = -ENOMEM;
+ int hw_pages, hw_page_size;
+ int len;
+ struct ocrdma_create_srq_rsp *rsp;
+ struct ocrdma_create_srq *cmd;
+ dma_addr_t pa;
+ struct ocrdma_dev *dev = srq->dev;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ u32 max_rqe_allocated;
+
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
+ if (!cmd)
+ return status;
+
+ cmd->pgsz_pdid = pd->id & OCRDMA_CREATE_SRQ_PD_ID_MASK;
+ max_rqe_allocated = srq_attr->attr.max_wr + 1;
+ status = ocrdma_build_q_conf(&max_rqe_allocated,
+ dev->attr.rqe_size,
+ &hw_pages, &hw_page_size);
+ if (status) {
+ ocrdma_err("%s() req. max_wr=0x%x\n", __func__,
+ srq_attr->attr.max_wr);
+ status = -EINVAL;
+ goto ret;
+ }
+ len = hw_pages * hw_page_size;
+ srq->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
+ if (!srq->rq.va) {
+ status = -ENOMEM;
+ goto ret;
+ }
+ ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size);
+
+ srq->rq.entry_size = dev->attr.rqe_size;
+ srq->rq.pa = pa;
+ srq->rq.len = len;
+ srq->rq.max_cnt = max_rqe_allocated;
+
+ cmd->max_sge_rqe = ilog2(max_rqe_allocated);
+ cmd->max_sge_rqe |= srq_attr->attr.max_sge <<
+ OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT;
+
+ cmd->pgsz_pdid |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE)
+ << OCRDMA_CREATE_SRQ_PG_SZ_SHIFT);
+ cmd->pages_rqe_sz |= (dev->attr.rqe_size
+ << OCRDMA_CREATE_SRQ_RQE_SIZE_SHIFT)
+ & OCRDMA_CREATE_SRQ_RQE_SIZE_MASK;
+ cmd->pages_rqe_sz |= hw_pages << OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT;
+
+ status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
+ if (status)
+ goto mbx_err;
+ rsp = (struct ocrdma_create_srq_rsp *)cmd;
+ srq->id = rsp->id;
+ srq->rq.dbid = rsp->id;
+ max_rqe_allocated = ((rsp->max_sge_rqe_allocated &
+ OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_MASK) >>
+ OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_SHIFT);
+ max_rqe_allocated = (1 << max_rqe_allocated);
+ srq->rq.max_cnt = max_rqe_allocated;
+ srq->rq.max_wqe_idx = max_rqe_allocated - 1;
+ srq->rq.max_sges = (rsp->max_sge_rqe_allocated &
+ OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_MASK) >>
+ OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT;
+ goto ret;
+mbx_err:
+ dma_free_coherent(&pdev->dev, srq->rq.len, srq->rq.va, pa);
+ret:
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_modify_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
+{
+ int status = -ENOMEM;
+ struct ocrdma_modify_srq *cmd;
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->id = srq->id;
+ cmd->limit_max_rqe |= srq_attr->srq_limit <<
+ OCRDMA_MODIFY_SRQ_LIMIT_SHIFT;
+ status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_query_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
+{
+ int status = -ENOMEM;
+ struct ocrdma_query_srq *cmd;
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->id = srq->rq.dbid;
+ status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+ if (status == 0) {
+ struct ocrdma_query_srq_rsp *rsp =
+ (struct ocrdma_query_srq_rsp *)cmd;
+ srq_attr->max_sge =
+ rsp->srq_lmt_max_sge &
+ OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_MASK;
+ srq_attr->max_wr =
+ rsp->max_rqe_pdid >> OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT;
+ srq_attr->srq_limit = rsp->srq_lmt_max_sge >>
+ OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT;
+ }
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq)
+{
+ int status = -ENOMEM;
+ struct ocrdma_destroy_srq *cmd;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_SRQ, sizeof(*cmd));
+ if (!cmd)
+ return status;
+ cmd->id = srq->id;
+ status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+ if (srq->rq.va)
+ dma_free_coherent(&pdev->dev, srq->rq.len,
+ srq->rq.va, srq->rq.pa);
+ kfree(cmd);
+ return status;
+}
+
+int ocrdma_alloc_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah)
+{
+ int i;
+ int status = -EINVAL;
+ struct ocrdma_av *av;
+ unsigned long flags;
+
+ av = dev->av_tbl.va;
+ spin_lock_irqsave(&dev->av_tbl.lock, flags);
+ for (i = 0; i < dev->av_tbl.num_ah; i++) {
+ if (av->valid == 0) {
+ av->valid = OCRDMA_AV_VALID;
+ ah->av = av;
+ ah->id = i;
+ status = 0;
+ break;
+ }
+ av++;
+ }
+ if (i == dev->av_tbl.num_ah)
+ status = -EAGAIN;
+ spin_unlock_irqrestore(&dev->av_tbl.lock, flags);
+ return status;
+}
+
+int ocrdma_free_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&dev->av_tbl.lock, flags);
+ ah->av->valid = 0;
+ spin_unlock_irqrestore(&dev->av_tbl.lock, flags);
+ return 0;
+}
+
+static int ocrdma_create_mq_eq(struct ocrdma_dev *dev)
+{
+ int status;
+ int irq;
+ unsigned long flags = 0;
+ int num_eq = 0;
+
+ if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
+ flags = IRQF_SHARED;
+ else {
+ num_eq = dev->nic_info.msix.num_vectors -
+ dev->nic_info.msix.start_vector;
+ /* minimum two vectors/eq are required for rdma to work.
+ * one for control path and one for data path.
+ */
+ if (num_eq < 2)
+ return -EBUSY;
+ }
+
+ status = ocrdma_create_eq(dev, &dev->meq, OCRDMA_EQ_LEN);
+ if (status)
+ return status;
+ sprintf(dev->meq.irq_name, "ocrdma_mq%d", dev->id);
+ irq = ocrdma_get_irq(dev, &dev->meq);
+ status = request_irq(irq, ocrdma_irq_handler, flags, dev->meq.irq_name,
+ &dev->meq);
+ if (status)
+ _ocrdma_destroy_eq(dev, &dev->meq);
+ return status;
+}
+
+static int ocrdma_create_qp_eqs(struct ocrdma_dev *dev)
+{
+ int num_eq, i, status;
+ int irq;
+ unsigned long flags = 0;
+
+ num_eq = dev->nic_info.msix.num_vectors -
+ dev->nic_info.msix.start_vector;
+ if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX) {
+ num_eq = 1;
+ flags = IRQF_SHARED;
+ } else
+ num_eq = min_t(u32, num_eq, num_online_cpus());
+ dev->qp_eq_tbl = kzalloc(sizeof(struct ocrdma_eq) * num_eq, GFP_KERNEL);
+ if (!dev->qp_eq_tbl)
+ return -ENOMEM;
+
+ for (i = 0; i < num_eq; i++) {
+ status = ocrdma_create_eq(dev, &dev->qp_eq_tbl[i],
+ OCRDMA_EQ_LEN);
+ if (status) {
+ status = -EINVAL;
+ break;
+ }
+ sprintf(dev->qp_eq_tbl[i].irq_name, "ocrdma_qp%d-%d",
+ dev->id, i);
+ irq = ocrdma_get_irq(dev, &dev->qp_eq_tbl[i]);
+ status = request_irq(irq, ocrdma_irq_handler, flags,
+ dev->qp_eq_tbl[i].irq_name,
+ &dev->qp_eq_tbl[i]);
+ if (status) {
+ _ocrdma_destroy_eq(dev, &dev->qp_eq_tbl[i]);
+ status = -EINVAL;
+ break;
+ }
+ dev->eq_cnt += 1;
+ }
+ /* one eq is sufficient for data path to work */
+ if (dev->eq_cnt >= 1)
+ return 0;
+ if (status)
+ ocrdma_destroy_qp_eqs(dev);
+ return status;
+}
+
+int ocrdma_init_hw(struct ocrdma_dev *dev)
+{
+ int status;
+ /* set up control path eq */
+ status = ocrdma_create_mq_eq(dev);
+ if (status)
+ return status;
+ /* set up data path eq */
+ status = ocrdma_create_qp_eqs(dev);
+ if (status)
+ goto qpeq_err;
+ status = ocrdma_create_mq(dev);
+ if (status)
+ goto mq_err;
+ status = ocrdma_mbx_query_fw_config(dev);
+ if (status)
+ goto conf_err;
+ status = ocrdma_mbx_query_dev(dev);
+ if (status)
+ goto conf_err;
+ status = ocrdma_mbx_query_fw_ver(dev);
+ if (status)
+ goto conf_err;
+ status = ocrdma_mbx_create_ah_tbl(dev);
+ if (status)
+ goto conf_err;
+ return 0;
+
+conf_err:
+ ocrdma_destroy_mq(dev);
+mq_err:
+ ocrdma_destroy_qp_eqs(dev);
+qpeq_err:
+ ocrdma_destroy_eq(dev, &dev->meq);
+ ocrdma_err("%s() status=%d\n", __func__, status);
+ return status;
+}
+
+void ocrdma_cleanup_hw(struct ocrdma_dev *dev)
+{
+ ocrdma_mbx_delete_ah_tbl(dev);
+
+ /* cleanup the data path eqs */
+ ocrdma_destroy_qp_eqs(dev);
+
+ /* cleanup the control path */
+ ocrdma_destroy_mq(dev);
+ ocrdma_destroy_eq(dev, &dev->meq);
+}
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.h b/drivers/infiniband/hw/ocrdma/ocrdma_hw.h
new file mode 100644
index 000000000000..be5db77404db
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.h
@@ -0,0 +1,132 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) CNA Adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_HW_H__
+#define __OCRDMA_HW_H__
+
+#include "ocrdma_sli.h"
+
+static inline void ocrdma_cpu_to_le32(void *dst, u32 len)
+{
+#ifdef __BIG_ENDIAN
+ int i = 0;
+ u32 *src_ptr = dst;
+ u32 *dst_ptr = dst;
+ for (; i < (len / 4); i++)
+ *(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
+#endif
+}
+
+static inline void ocrdma_le32_to_cpu(void *dst, u32 len)
+{
+#ifdef __BIG_ENDIAN
+ int i = 0;
+ u32 *src_ptr = dst;
+ u32 *dst_ptr = dst;
+ for (; i < (len / sizeof(u32)); i++)
+ *(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
+#endif
+}
+
+static inline void ocrdma_copy_cpu_to_le32(void *dst, void *src, u32 len)
+{
+#ifdef __BIG_ENDIAN
+ int i = 0;
+ u32 *src_ptr = src;
+ u32 *dst_ptr = dst;
+ for (; i < (len / sizeof(u32)); i++)
+ *(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
+#else
+ memcpy(dst, src, len);
+#endif
+}
+
+static inline void ocrdma_copy_le32_to_cpu(void *dst, void *src, u32 len)
+{
+#ifdef __BIG_ENDIAN
+ int i = 0;
+ u32 *src_ptr = src;
+ u32 *dst_ptr = dst;
+ for (; i < len / sizeof(u32); i++)
+ *(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
+#else
+ memcpy(dst, src, len);
+#endif
+}
+
+int ocrdma_init_hw(struct ocrdma_dev *);
+void ocrdma_cleanup_hw(struct ocrdma_dev *);
+
+enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps);
+void ocrdma_ring_cq_db(struct ocrdma_dev *, u16 cq_id, bool armed,
+ bool solicited, u16 cqe_popped);
+
+/* verbs specific mailbox commands */
+int ocrdma_query_config(struct ocrdma_dev *,
+ struct ocrdma_mbx_query_config *config);
+int ocrdma_resolve_dgid(struct ocrdma_dev *, union ib_gid *dgid, u8 *mac_addr);
+
+int ocrdma_mbx_alloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
+int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
+
+int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
+ u32 pd_id, int addr_check);
+int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *, int fmr, u32 lkey);
+
+int ocrdma_reg_mr(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
+ u32 pd_id, int acc);
+int ocrdma_mbx_create_cq(struct ocrdma_dev *, struct ocrdma_cq *,
+ int entries, int dpp_cq);
+int ocrdma_mbx_destroy_cq(struct ocrdma_dev *, struct ocrdma_cq *);
+
+int ocrdma_mbx_create_qp(struct ocrdma_qp *, struct ib_qp_init_attr *attrs,
+ u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
+ u16 *dpp_credit_lmt);
+int ocrdma_mbx_modify_qp(struct ocrdma_dev *, struct ocrdma_qp *,
+ struct ib_qp_attr *attrs, int attr_mask,
+ enum ib_qp_state old_qps);
+int ocrdma_mbx_query_qp(struct ocrdma_dev *, struct ocrdma_qp *,
+ struct ocrdma_qp_params *param);
+int ocrdma_mbx_destroy_qp(struct ocrdma_dev *, struct ocrdma_qp *);
+
+int ocrdma_mbx_create_srq(struct ocrdma_srq *,
+ struct ib_srq_init_attr *,
+ struct ocrdma_pd *);
+int ocrdma_mbx_modify_srq(struct ocrdma_srq *, struct ib_srq_attr *);
+int ocrdma_mbx_query_srq(struct ocrdma_srq *, struct ib_srq_attr *);
+int ocrdma_mbx_destroy_srq(struct ocrdma_dev *, struct ocrdma_srq *);
+
+int ocrdma_alloc_av(struct ocrdma_dev *, struct ocrdma_ah *);
+int ocrdma_free_av(struct ocrdma_dev *, struct ocrdma_ah *);
+
+int ocrdma_qp_state_machine(struct ocrdma_qp *, enum ib_qp_state new_state,
+ enum ib_qp_state *old_ib_state);
+bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
+bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
+void ocrdma_flush_qp(struct ocrdma_qp *);
+
+#endif /* __OCRDMA_HW_H__ */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
new file mode 100644
index 000000000000..8aa34167aacd
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -0,0 +1,558 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/idr.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_addr.h>
+
+#include <linux/netdevice.h>
+#include <net/addrconf.h>
+
+#include "ocrdma.h"
+#include "ocrdma_verbs.h"
+#include "ocrdma_ah.h"
+#include "be_roce.h"
+#include "ocrdma_hw.h"
+
+MODULE_VERSION(OCRDMA_ROCE_DEV_VERSION);
+MODULE_DESCRIPTION("Emulex RoCE HCA Driver");
+MODULE_AUTHOR("Emulex Corporation");
+MODULE_LICENSE("GPL");
+
+static LIST_HEAD(ocrdma_dev_list);
+static DEFINE_MUTEX(ocrdma_devlist_lock);
+static DEFINE_IDR(ocrdma_dev_id);
+
+static union ib_gid ocrdma_zero_sgid;
+static int ocrdma_inet6addr_event(struct notifier_block *,
+ unsigned long, void *);
+
+static struct notifier_block ocrdma_inet6addr_notifier = {
+ .notifier_call = ocrdma_inet6addr_event
+};
+
+int ocrdma_get_instance(void)
+{
+ int instance = 0;
+
+ /* Assign an unused number */
+ if (!idr_pre_get(&ocrdma_dev_id, GFP_KERNEL))
+ return -1;
+ if (idr_get_new(&ocrdma_dev_id, NULL, &instance))
+ return -1;
+ return instance;
+}
+
+void ocrdma_get_guid(struct ocrdma_dev *dev, u8 *guid)
+{
+ u8 mac_addr[6];
+
+ memcpy(&mac_addr[0], &dev->nic_info.mac_addr[0], ETH_ALEN);
+ guid[0] = mac_addr[0] ^ 2;
+ guid[1] = mac_addr[1];
+ guid[2] = mac_addr[2];
+ guid[3] = 0xff;
+ guid[4] = 0xfe;
+ guid[5] = mac_addr[3];
+ guid[6] = mac_addr[4];
+ guid[7] = mac_addr[5];
+}
+
+static void ocrdma_build_sgid_mac(union ib_gid *sgid, unsigned char *mac_addr,
+ bool is_vlan, u16 vlan_id)
+{
+ sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
+ sgid->raw[8] = mac_addr[0] ^ 2;
+ sgid->raw[9] = mac_addr[1];
+ sgid->raw[10] = mac_addr[2];
+ if (is_vlan) {
+ sgid->raw[11] = vlan_id >> 8;
+ sgid->raw[12] = vlan_id & 0xff;
+ } else {
+ sgid->raw[11] = 0xff;
+ sgid->raw[12] = 0xfe;
+ }
+ sgid->raw[13] = mac_addr[3];
+ sgid->raw[14] = mac_addr[4];
+ sgid->raw[15] = mac_addr[5];
+}
+
+static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
+ bool is_vlan, u16 vlan_id)
+{
+ int i;
+ bool found = false;
+ union ib_gid new_sgid;
+ int free_idx = OCRDMA_MAX_SGID;
+ unsigned long flags;
+
+ memset(&ocrdma_zero_sgid, 0, sizeof(union ib_gid));
+
+ ocrdma_build_sgid_mac(&new_sgid, mac_addr, is_vlan, vlan_id);
+
+ spin_lock_irqsave(&dev->sgid_lock, flags);
+ for (i = 0; i < OCRDMA_MAX_SGID; i++) {
+ if (!memcmp(&dev->sgid_tbl[i], &ocrdma_zero_sgid,
+ sizeof(union ib_gid))) {
+ /* found free entry */
+ if (!found) {
+ free_idx = i;
+ found = true;
+ break;
+ }
+ } else if (!memcmp(&dev->sgid_tbl[i], &new_sgid,
+ sizeof(union ib_gid))) {
+ /* entry already present, no addition is required. */
+ spin_unlock_irqrestore(&dev->sgid_lock, flags);
+ return;
+ }
+ }
+ /* if entry doesn't exist and if table has some space, add entry */
+ if (found)
+ memcpy(&dev->sgid_tbl[free_idx], &new_sgid,
+ sizeof(union ib_gid));
+ spin_unlock_irqrestore(&dev->sgid_lock, flags);
+}
+
+static bool ocrdma_del_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
+ bool is_vlan, u16 vlan_id)
+{
+ int found = false;
+ int i;
+ union ib_gid sgid;
+ unsigned long flags;
+
+ ocrdma_build_sgid_mac(&sgid, mac_addr, is_vlan, vlan_id);
+
+ spin_lock_irqsave(&dev->sgid_lock, flags);
+ /* first is default sgid, which cannot be deleted. */
+ for (i = 1; i < OCRDMA_MAX_SGID; i++) {
+ if (!memcmp(&dev->sgid_tbl[i], &sgid, sizeof(union ib_gid))) {
+ /* found matching entry */
+ memset(&dev->sgid_tbl[i], 0, sizeof(union ib_gid));
+ found = true;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&dev->sgid_lock, flags);
+ return found;
+}
+
+static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
+{
+ /* GID Index 0 - Invariant manufacturer-assigned EUI-64 */
+ union ib_gid *sgid = &dev->sgid_tbl[0];
+
+ sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
+ ocrdma_get_guid(dev, &sgid->raw[8]);
+}
+
+static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
+{
+ struct net_device *netdev, *tmp;
+ u16 vlan_id;
+ bool is_vlan;
+
+ netdev = dev->nic_info.netdev;
+
+ ocrdma_add_default_sgid(dev);
+
+ rcu_read_lock();
+ for_each_netdev_rcu(&init_net, tmp) {
+ if (netdev == tmp || vlan_dev_real_dev(tmp) == netdev) {
+ if (!netif_running(tmp) || !netif_oper_up(tmp))
+ continue;
+ if (netdev != tmp) {
+ vlan_id = vlan_dev_vlan_id(tmp);
+ is_vlan = true;
+ } else {
+ is_vlan = false;
+ vlan_id = 0;
+ tmp = netdev;
+ }
+ ocrdma_add_sgid(dev, tmp->dev_addr, is_vlan, vlan_id);
+ }
+ }
+ rcu_read_unlock();
+ return 0;
+}
+
+static int ocrdma_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 = NULL;
+ struct ib_event gid_event;
+ struct ocrdma_dev *dev;
+ bool found = false;
+ bool is_vlan = false;
+ u16 vid = 0;
+
+ netdev = vlan_dev_real_dev(event_netdev);
+ if (netdev != event_netdev) {
+ is_vlan = true;
+ vid = vlan_dev_vlan_id(event_netdev);
+ }
+ mutex_lock(&ocrdma_devlist_lock);
+ list_for_each_entry(dev, &ocrdma_dev_list, entry) {
+ if (dev->nic_info.netdev == netdev) {
+ found = true;
+ break;
+ }
+ }
+ mutex_unlock(&ocrdma_devlist_lock);
+
+ if (!found)
+ return NOTIFY_DONE;
+ if (!rdma_link_local_addr((struct in6_addr *)&ifa->addr))
+ return NOTIFY_DONE;
+
+ mutex_lock(&dev->dev_lock);
+ switch (event) {
+ case NETDEV_UP:
+ ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid);
+ break;
+ case NETDEV_DOWN:
+ found = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid);
+ if (found) {
+ /* found the matching entry, notify
+ * the consumers about it
+ */
+ gid_event.device = &dev->ibdev;
+ gid_event.element.port_num = 1;
+ gid_event.event = IB_EVENT_GID_CHANGE;
+ ib_dispatch_event(&gid_event);
+ }
+ break;
+ default:
+ break;
+ }
+ mutex_unlock(&dev->dev_lock);
+ return NOTIFY_OK;
+}
+
+static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
+ u8 port_num)
+{
+ return IB_LINK_LAYER_ETHERNET;
+}
+
+int ocrdma_register_device(struct ocrdma_dev *dev)
+{
+ strlcpy(dev->ibdev.name, "ocrdma%d", IB_DEVICE_NAME_MAX);
+ ocrdma_get_guid(dev, (u8 *)&dev->ibdev.node_guid);
+ memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC,
+ sizeof(OCRDMA_NODE_DESC));
+ dev->ibdev.owner = THIS_MODULE;
+ dev->ibdev.uverbs_cmd_mask =
+ OCRDMA_UVERBS(GET_CONTEXT) |
+ OCRDMA_UVERBS(QUERY_DEVICE) |
+ OCRDMA_UVERBS(QUERY_PORT) |
+ OCRDMA_UVERBS(ALLOC_PD) |
+ OCRDMA_UVERBS(DEALLOC_PD) |
+ OCRDMA_UVERBS(REG_MR) |
+ OCRDMA_UVERBS(DEREG_MR) |
+ OCRDMA_UVERBS(CREATE_COMP_CHANNEL) |
+ OCRDMA_UVERBS(CREATE_CQ) |
+ OCRDMA_UVERBS(RESIZE_CQ) |
+ OCRDMA_UVERBS(DESTROY_CQ) |
+ OCRDMA_UVERBS(REQ_NOTIFY_CQ) |
+ OCRDMA_UVERBS(CREATE_QP) |
+ OCRDMA_UVERBS(MODIFY_QP) |
+ OCRDMA_UVERBS(QUERY_QP) |
+ OCRDMA_UVERBS(DESTROY_QP) |
+ OCRDMA_UVERBS(POLL_CQ) |
+ OCRDMA_UVERBS(POST_SEND) |
+ OCRDMA_UVERBS(POST_RECV);
+
+ dev->ibdev.uverbs_cmd_mask |=
+ OCRDMA_UVERBS(CREATE_AH) |
+ OCRDMA_UVERBS(MODIFY_AH) |
+ OCRDMA_UVERBS(QUERY_AH) |
+ OCRDMA_UVERBS(DESTROY_AH);
+
+ dev->ibdev.node_type = RDMA_NODE_IB_CA;
+ dev->ibdev.phys_port_cnt = 1;
+ dev->ibdev.num_comp_vectors = 1;
+
+ /* mandatory verbs. */
+ dev->ibdev.query_device = ocrdma_query_device;
+ dev->ibdev.query_port = ocrdma_query_port;
+ dev->ibdev.modify_port = ocrdma_modify_port;
+ dev->ibdev.query_gid = ocrdma_query_gid;
+ dev->ibdev.get_link_layer = ocrdma_link_layer;
+ dev->ibdev.alloc_pd = ocrdma_alloc_pd;
+ dev->ibdev.dealloc_pd = ocrdma_dealloc_pd;
+
+ dev->ibdev.create_cq = ocrdma_create_cq;
+ dev->ibdev.destroy_cq = ocrdma_destroy_cq;
+ dev->ibdev.resize_cq = ocrdma_resize_cq;
+
+ dev->ibdev.create_qp = ocrdma_create_qp;
+ dev->ibdev.modify_qp = ocrdma_modify_qp;
+ dev->ibdev.query_qp = ocrdma_query_qp;
+ dev->ibdev.destroy_qp = ocrdma_destroy_qp;
+
+ dev->ibdev.query_pkey = ocrdma_query_pkey;
+ dev->ibdev.create_ah = ocrdma_create_ah;
+ dev->ibdev.destroy_ah = ocrdma_destroy_ah;
+ dev->ibdev.query_ah = ocrdma_query_ah;
+ dev->ibdev.modify_ah = ocrdma_modify_ah;
+
+ dev->ibdev.poll_cq = ocrdma_poll_cq;
+ dev->ibdev.post_send = ocrdma_post_send;
+ dev->ibdev.post_recv = ocrdma_post_recv;
+ dev->ibdev.req_notify_cq = ocrdma_arm_cq;
+
+ dev->ibdev.get_dma_mr = ocrdma_get_dma_mr;
+ dev->ibdev.dereg_mr = ocrdma_dereg_mr;
+ dev->ibdev.reg_user_mr = ocrdma_reg_user_mr;
+
+ /* mandatory to support user space verbs consumer. */
+ dev->ibdev.alloc_ucontext = ocrdma_alloc_ucontext;
+ dev->ibdev.dealloc_ucontext = ocrdma_dealloc_ucontext;
+ dev->ibdev.mmap = ocrdma_mmap;
+ dev->ibdev.dma_device = &dev->nic_info.pdev->dev;
+
+ dev->ibdev.process_mad = ocrdma_process_mad;
+
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ dev->ibdev.uverbs_cmd_mask |=
+ OCRDMA_UVERBS(CREATE_SRQ) |
+ OCRDMA_UVERBS(MODIFY_SRQ) |
+ OCRDMA_UVERBS(QUERY_SRQ) |
+ OCRDMA_UVERBS(DESTROY_SRQ) |
+ OCRDMA_UVERBS(POST_SRQ_RECV);
+
+ dev->ibdev.create_srq = ocrdma_create_srq;
+ dev->ibdev.modify_srq = ocrdma_modify_srq;
+ dev->ibdev.query_srq = ocrdma_query_srq;
+ dev->ibdev.destroy_srq = ocrdma_destroy_srq;
+ dev->ibdev.post_srq_recv = ocrdma_post_srq_recv;
+ }
+ return ib_register_device(&dev->ibdev, NULL);
+}
+
+static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
+{
+ mutex_init(&dev->dev_lock);
+ dev->sgid_tbl = kzalloc(sizeof(union ib_gid) *
+ OCRDMA_MAX_SGID, GFP_KERNEL);
+ if (!dev->sgid_tbl)
+ goto alloc_err;
+ spin_lock_init(&dev->sgid_lock);
+
+ dev->cq_tbl = kzalloc(sizeof(struct ocrdma_cq *) *
+ OCRDMA_MAX_CQ, GFP_KERNEL);
+ if (!dev->cq_tbl)
+ goto alloc_err;
+
+ if (dev->attr.max_qp) {
+ dev->qp_tbl = kzalloc(sizeof(struct ocrdma_qp *) *
+ OCRDMA_MAX_QP, GFP_KERNEL);
+ if (!dev->qp_tbl)
+ goto alloc_err;
+ }
+ spin_lock_init(&dev->av_tbl.lock);
+ spin_lock_init(&dev->flush_q_lock);
+ return 0;
+alloc_err:
+ ocrdma_err("%s(%d) error.\n", __func__, dev->id);
+ return -ENOMEM;
+}
+
+static void ocrdma_free_resources(struct ocrdma_dev *dev)
+{
+ kfree(dev->qp_tbl);
+ kfree(dev->cq_tbl);
+ kfree(dev->sgid_tbl);
+}
+
+static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
+{
+ int status = 0;
+ struct ocrdma_dev *dev;
+
+ dev = (struct ocrdma_dev *)ib_alloc_device(sizeof(struct ocrdma_dev));
+ if (!dev) {
+ ocrdma_err("Unable to allocate ib device\n");
+ return NULL;
+ }
+ dev->mbx_cmd = kzalloc(sizeof(struct ocrdma_mqe_emb_cmd), GFP_KERNEL);
+ if (!dev->mbx_cmd)
+ goto idr_err;
+
+ memcpy(&dev->nic_info, dev_info, sizeof(*dev_info));
+ dev->id = ocrdma_get_instance();
+ if (dev->id < 0)
+ goto idr_err;
+
+ status = ocrdma_init_hw(dev);
+ if (status)
+ goto init_err;
+
+ status = ocrdma_alloc_resources(dev);
+ if (status)
+ goto alloc_err;
+
+ status = ocrdma_build_sgid_tbl(dev);
+ if (status)
+ goto alloc_err;
+
+ status = ocrdma_register_device(dev);
+ if (status)
+ goto alloc_err;
+
+ mutex_lock(&ocrdma_devlist_lock);
+ list_add_tail(&dev->entry, &ocrdma_dev_list);
+ mutex_unlock(&ocrdma_devlist_lock);
+ return dev;
+
+alloc_err:
+ ocrdma_free_resources(dev);
+ ocrdma_cleanup_hw(dev);
+init_err:
+ idr_remove(&ocrdma_dev_id, dev->id);
+idr_err:
+ kfree(dev->mbx_cmd);
+ ib_dealloc_device(&dev->ibdev);
+ ocrdma_err("%s() leaving. ret=%d\n", __func__, status);
+ return NULL;
+}
+
+static void ocrdma_remove(struct ocrdma_dev *dev)
+{
+ /* first unregister with stack to stop all the active traffic
+ * of the registered clients.
+ */
+ ib_unregister_device(&dev->ibdev);
+
+ mutex_lock(&ocrdma_devlist_lock);
+ list_del(&dev->entry);
+ mutex_unlock(&ocrdma_devlist_lock);
+
+ ocrdma_free_resources(dev);
+ ocrdma_cleanup_hw(dev);
+
+ idr_remove(&ocrdma_dev_id, dev->id);
+ kfree(dev->mbx_cmd);
+ ib_dealloc_device(&dev->ibdev);
+}
+
+static int ocrdma_open(struct ocrdma_dev *dev)
+{
+ struct ib_event port_event;
+
+ port_event.event = IB_EVENT_PORT_ACTIVE;
+ port_event.element.port_num = 1;
+ port_event.device = &dev->ibdev;
+ ib_dispatch_event(&port_event);
+ return 0;
+}
+
+static int ocrdma_close(struct ocrdma_dev *dev)
+{
+ int i;
+ struct ocrdma_qp *qp, **cur_qp;
+ struct ib_event err_event;
+ struct ib_qp_attr attrs;
+ int attr_mask = IB_QP_STATE;
+
+ attrs.qp_state = IB_QPS_ERR;
+ mutex_lock(&dev->dev_lock);
+ if (dev->qp_tbl) {
+ cur_qp = dev->qp_tbl;
+ for (i = 0; i < OCRDMA_MAX_QP; i++) {
+ qp = cur_qp[i];
+ if (qp) {
+ /* change the QP state to ERROR */
+ _ocrdma_modify_qp(&qp->ibqp, &attrs, attr_mask);
+
+ err_event.event = IB_EVENT_QP_FATAL;
+ err_event.element.qp = &qp->ibqp;
+ err_event.device = &dev->ibdev;
+ ib_dispatch_event(&err_event);
+ }
+ }
+ }
+ mutex_unlock(&dev->dev_lock);
+
+ err_event.event = IB_EVENT_PORT_ERR;
+ err_event.element.port_num = 1;
+ err_event.device = &dev->ibdev;
+ ib_dispatch_event(&err_event);
+ return 0;
+}
+
+/* event handling via NIC driver ensures that all the NIC specific
+ * initialization done before RoCE driver notifies
+ * event to stack.
+ */
+static void ocrdma_event_handler(struct ocrdma_dev *dev, u32 event)
+{
+ switch (event) {
+ case BE_DEV_UP:
+ ocrdma_open(dev);
+ break;
+ case BE_DEV_DOWN:
+ ocrdma_close(dev);
+ break;
+ };
+}
+
+struct ocrdma_driver ocrdma_drv = {
+ .name = "ocrdma_driver",
+ .add = ocrdma_add,
+ .remove = ocrdma_remove,
+ .state_change_handler = ocrdma_event_handler,
+};
+
+static int __init ocrdma_init_module(void)
+{
+ int status;
+
+ status = register_inet6addr_notifier(&ocrdma_inet6addr_notifier);
+ if (status)
+ return status;
+ status = be_roce_register_driver(&ocrdma_drv);
+ if (status)
+ unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
+ return status;
+}
+
+static void __exit ocrdma_exit_module(void)
+{
+ be_roce_unregister_driver(&ocrdma_drv);
+ unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
+}
+
+module_init(ocrdma_init_module);
+module_exit(ocrdma_exit_module);
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
new file mode 100644
index 000000000000..7fd80cc0f037
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
@@ -0,0 +1,1672 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_SLI_H__
+#define __OCRDMA_SLI_H__
+
+#define Bit(_b) (1 << (_b))
+
+#define OCRDMA_GEN1_FAMILY 0xB
+#define OCRDMA_GEN2_FAMILY 0x2
+
+#define OCRDMA_SUBSYS_ROCE 10
+enum {
+ OCRDMA_CMD_QUERY_CONFIG = 1,
+ OCRDMA_CMD_ALLOC_PD,
+ OCRDMA_CMD_DEALLOC_PD,
+
+ OCRDMA_CMD_CREATE_AH_TBL,
+ OCRDMA_CMD_DELETE_AH_TBL,
+
+ OCRDMA_CMD_CREATE_QP,
+ OCRDMA_CMD_QUERY_QP,
+ OCRDMA_CMD_MODIFY_QP,
+ OCRDMA_CMD_DELETE_QP,
+
+ OCRDMA_CMD_RSVD1,
+ OCRDMA_CMD_ALLOC_LKEY,
+ OCRDMA_CMD_DEALLOC_LKEY,
+ OCRDMA_CMD_REGISTER_NSMR,
+ OCRDMA_CMD_REREGISTER_NSMR,
+ OCRDMA_CMD_REGISTER_NSMR_CONT,
+ OCRDMA_CMD_QUERY_NSMR,
+ OCRDMA_CMD_ALLOC_MW,
+ OCRDMA_CMD_QUERY_MW,
+
+ OCRDMA_CMD_CREATE_SRQ,
+ OCRDMA_CMD_QUERY_SRQ,
+ OCRDMA_CMD_MODIFY_SRQ,
+ OCRDMA_CMD_DELETE_SRQ,
+
+ OCRDMA_CMD_ATTACH_MCAST,
+ OCRDMA_CMD_DETACH_MCAST,
+
+ OCRDMA_CMD_MAX
+};
+
+#define OCRDMA_SUBSYS_COMMON 1
+enum {
+ OCRDMA_CMD_CREATE_CQ = 12,
+ OCRDMA_CMD_CREATE_EQ = 13,
+ OCRDMA_CMD_CREATE_MQ = 21,
+ OCRDMA_CMD_GET_FW_VER = 35,
+ OCRDMA_CMD_DELETE_MQ = 53,
+ OCRDMA_CMD_DELETE_CQ = 54,
+ OCRDMA_CMD_DELETE_EQ = 55,
+ OCRDMA_CMD_GET_FW_CONFIG = 58,
+ OCRDMA_CMD_CREATE_MQ_EXT = 90
+};
+
+enum {
+ QTYPE_EQ = 1,
+ QTYPE_CQ = 2,
+ QTYPE_MCCQ = 3
+};
+
+#define OCRDMA_MAX_SGID (8)
+
+#define OCRDMA_MAX_QP 2048
+#define OCRDMA_MAX_CQ 2048
+
+enum {
+ OCRDMA_DB_RQ_OFFSET = 0xE0,
+ OCRDMA_DB_GEN2_RQ1_OFFSET = 0x100,
+ OCRDMA_DB_GEN2_RQ2_OFFSET = 0xC0,
+ OCRDMA_DB_SQ_OFFSET = 0x60,
+ OCRDMA_DB_GEN2_SQ_OFFSET = 0x1C0,
+ OCRDMA_DB_SRQ_OFFSET = OCRDMA_DB_RQ_OFFSET,
+ OCRDMA_DB_GEN2_SRQ_OFFSET = OCRDMA_DB_GEN2_RQ1_OFFSET,
+ OCRDMA_DB_CQ_OFFSET = 0x120,
+ OCRDMA_DB_EQ_OFFSET = OCRDMA_DB_CQ_OFFSET,
+ OCRDMA_DB_MQ_OFFSET = 0x140
+};
+
+#define OCRDMA_DB_CQ_RING_ID_MASK 0x3FF /* bits 0 - 9 */
+#define OCRDMA_DB_CQ_RING_ID_EXT_MASK 0x0C00 /* bits 10-11 of qid at 12-11 */
+/* qid #2 msbits at 12-11 */
+#define OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT 0x1
+#define OCRDMA_DB_CQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
+/* Rearm bit */
+#define OCRDMA_DB_CQ_REARM_SHIFT (29) /* bit 29 */
+/* solicited bit */
+#define OCRDMA_DB_CQ_SOLICIT_SHIFT (31) /* bit 31 */
+
+#define OCRDMA_EQ_ID_MASK 0x1FF /* bits 0 - 8 */
+#define OCRDMA_EQ_ID_EXT_MASK 0x3e00 /* bits 9-13 */
+#define OCRDMA_EQ_ID_EXT_MASK_SHIFT (2) /* qid bits 9-13 at 11-15 */
+
+/* Clear the interrupt for this eq */
+#define OCRDMA_EQ_CLR_SHIFT (9) /* bit 9 */
+/* Must be 1 */
+#define OCRDMA_EQ_TYPE_SHIFT (10) /* bit 10 */
+/* Number of event entries processed */
+#define OCRDMA_NUM_EQE_SHIFT (16) /* bits 16 - 28 */
+/* Rearm bit */
+#define OCRDMA_REARM_SHIFT (29) /* bit 29 */
+
+#define OCRDMA_MQ_ID_MASK 0x7FF /* bits 0 - 10 */
+/* Number of entries posted */
+#define OCRDMA_MQ_NUM_MQE_SHIFT (16) /* bits 16 - 29 */
+
+#define OCRDMA_MIN_HPAGE_SIZE (4096)
+
+#define OCRDMA_MIN_Q_PAGE_SIZE (4096)
+#define OCRDMA_MAX_Q_PAGES (8)
+
+/*
+# 0: 4K Bytes
+# 1: 8K Bytes
+# 2: 16K Bytes
+# 3: 32K Bytes
+# 4: 64K Bytes
+*/
+#define OCRDMA_MAX_Q_PAGE_SIZE_CNT (5)
+#define OCRDMA_Q_PAGE_BASE_SIZE (OCRDMA_MIN_Q_PAGE_SIZE * OCRDMA_MAX_Q_PAGES)
+
+#define MAX_OCRDMA_QP_PAGES (8)
+#define OCRDMA_MAX_WQE_MEM_SIZE (MAX_OCRDMA_QP_PAGES * OCRDMA_MIN_HQ_PAGE_SIZE)
+
+#define OCRDMA_CREATE_CQ_MAX_PAGES (4)
+#define OCRDMA_DPP_CQE_SIZE (4)
+
+#define OCRDMA_GEN2_MAX_CQE 1024
+#define OCRDMA_GEN2_CQ_PAGE_SIZE 4096
+#define OCRDMA_GEN2_WQE_SIZE 256
+#define OCRDMA_MAX_CQE 4095
+#define OCRDMA_CQ_PAGE_SIZE 16384
+#define OCRDMA_WQE_SIZE 128
+#define OCRDMA_WQE_STRIDE 8
+#define OCRDMA_WQE_ALIGN_BYTES 16
+
+#define MAX_OCRDMA_SRQ_PAGES MAX_OCRDMA_QP_PAGES
+
+enum {
+ OCRDMA_MCH_OPCODE_SHIFT = 0,
+ OCRDMA_MCH_OPCODE_MASK = 0xFF,
+ OCRDMA_MCH_SUBSYS_SHIFT = 8,
+ OCRDMA_MCH_SUBSYS_MASK = 0xFF00
+};
+
+/* mailbox cmd header */
+struct ocrdma_mbx_hdr {
+ u32 subsys_op;
+ u32 timeout; /* in seconds */
+ u32 cmd_len;
+ u32 rsvd_version;
+} __packed;
+
+enum {
+ OCRDMA_MBX_RSP_OPCODE_SHIFT = 0,
+ OCRDMA_MBX_RSP_OPCODE_MASK = 0xFF,
+ OCRDMA_MBX_RSP_SUBSYS_SHIFT = 8,
+ OCRDMA_MBX_RSP_SUBSYS_MASK = 0xFF << OCRDMA_MBX_RSP_SUBSYS_SHIFT,
+
+ OCRDMA_MBX_RSP_STATUS_SHIFT = 0,
+ OCRDMA_MBX_RSP_STATUS_MASK = 0xFF,
+ OCRDMA_MBX_RSP_ASTATUS_SHIFT = 8,
+ OCRDMA_MBX_RSP_ASTATUS_MASK = 0xFF << OCRDMA_MBX_RSP_ASTATUS_SHIFT
+};
+
+/* mailbox cmd response */
+struct ocrdma_mbx_rsp {
+ u32 subsys_op;
+ u32 status;
+ u32 rsp_len;
+ u32 add_rsp_len;
+} __packed;
+
+enum {
+ OCRDMA_MQE_EMBEDDED = 1,
+ OCRDMA_MQE_NONEMBEDDED = 0
+};
+
+struct ocrdma_mqe_sge {
+ u32 pa_lo;
+ u32 pa_hi;
+ u32 len;
+} __packed;
+
+enum {
+ OCRDMA_MQE_HDR_EMB_SHIFT = 0,
+ OCRDMA_MQE_HDR_EMB_MASK = Bit(0),
+ OCRDMA_MQE_HDR_SGE_CNT_SHIFT = 3,
+ OCRDMA_MQE_HDR_SGE_CNT_MASK = 0x1F << OCRDMA_MQE_HDR_SGE_CNT_SHIFT,
+ OCRDMA_MQE_HDR_SPECIAL_SHIFT = 24,
+ OCRDMA_MQE_HDR_SPECIAL_MASK = 0xFF << OCRDMA_MQE_HDR_SPECIAL_SHIFT
+};
+
+struct ocrdma_mqe_hdr {
+ u32 spcl_sge_cnt_emb;
+ u32 pyld_len;
+ u32 tag_lo;
+ u32 tag_hi;
+ u32 rsvd3;
+} __packed;
+
+struct ocrdma_mqe_emb_cmd {
+ struct ocrdma_mbx_hdr mch;
+ u8 pyld[220];
+} __packed;
+
+struct ocrdma_mqe {
+ struct ocrdma_mqe_hdr hdr;
+ union {
+ struct ocrdma_mqe_emb_cmd emb_req;
+ struct {
+ struct ocrdma_mqe_sge sge[19];
+ } nonemb_req;
+ u8 cmd[236];
+ struct ocrdma_mbx_rsp rsp;
+ } u;
+} __packed;
+
+#define OCRDMA_EQ_LEN 4096
+#define OCRDMA_MQ_CQ_LEN 256
+#define OCRDMA_MQ_LEN 128
+
+#define PAGE_SHIFT_4K 12
+#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
+
+/* Returns number of pages spanned by the data starting at the given addr */
+#define PAGES_4K_SPANNED(_address, size) \
+ ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
+ (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
+
+struct ocrdma_delete_q_req {
+ struct ocrdma_mbx_hdr req;
+ u32 id;
+} __packed;
+
+struct ocrdma_pa {
+ u32 lo;
+ u32 hi;
+} __packed;
+
+#define MAX_OCRDMA_EQ_PAGES (8)
+struct ocrdma_create_eq_req {
+ struct ocrdma_mbx_hdr req;
+ u32 num_pages;
+ u32 valid;
+ u32 cnt;
+ u32 delay;
+ u32 rsvd;
+ struct ocrdma_pa pa[MAX_OCRDMA_EQ_PAGES];
+} __packed;
+
+enum {
+ OCRDMA_CREATE_EQ_VALID = Bit(29),
+ OCRDMA_CREATE_EQ_CNT_SHIFT = 26,
+ OCRDMA_CREATE_CQ_DELAY_SHIFT = 13,
+};
+
+struct ocrdma_create_eq_rsp {
+ struct ocrdma_mbx_rsp rsp;
+ u32 vector_eqid;
+};
+
+#define OCRDMA_EQ_MINOR_OTHER (0x1)
+
+enum {
+ OCRDMA_MCQE_STATUS_SHIFT = 0,
+ OCRDMA_MCQE_STATUS_MASK = 0xFFFF,
+ OCRDMA_MCQE_ESTATUS_SHIFT = 16,
+ OCRDMA_MCQE_ESTATUS_MASK = 0xFFFF << OCRDMA_MCQE_ESTATUS_SHIFT,
+ OCRDMA_MCQE_CONS_SHIFT = 27,
+ OCRDMA_MCQE_CONS_MASK = Bit(27),
+ OCRDMA_MCQE_CMPL_SHIFT = 28,
+ OCRDMA_MCQE_CMPL_MASK = Bit(28),
+ OCRDMA_MCQE_AE_SHIFT = 30,
+ OCRDMA_MCQE_AE_MASK = Bit(30),
+ OCRDMA_MCQE_VALID_SHIFT = 31,
+ OCRDMA_MCQE_VALID_MASK = Bit(31)
+};
+
+struct ocrdma_mcqe {
+ u32 status;
+ u32 tag_lo;
+ u32 tag_hi;
+ u32 valid_ae_cmpl_cons;
+} __packed;
+
+enum {
+ OCRDMA_AE_MCQE_QPVALID = Bit(31),
+ OCRDMA_AE_MCQE_QPID_MASK = 0xFFFF,
+
+ OCRDMA_AE_MCQE_CQVALID = Bit(31),
+ OCRDMA_AE_MCQE_CQID_MASK = 0xFFFF,
+ OCRDMA_AE_MCQE_VALID = Bit(31),
+ OCRDMA_AE_MCQE_AE = Bit(30),
+ OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT = 16,
+ OCRDMA_AE_MCQE_EVENT_TYPE_MASK =
+ 0xFF << OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT,
+ OCRDMA_AE_MCQE_EVENT_CODE_SHIFT = 8,
+ OCRDMA_AE_MCQE_EVENT_CODE_MASK =
+ 0xFF << OCRDMA_AE_MCQE_EVENT_CODE_SHIFT
+};
+struct ocrdma_ae_mcqe {
+ u32 qpvalid_qpid;
+ u32 cqvalid_cqid;
+ u32 evt_tag;
+ u32 valid_ae_event;
+} __packed;
+
+enum {
+ OCRDMA_AE_MPA_MCQE_REQ_ID_SHIFT = 16,
+ OCRDMA_AE_MPA_MCQE_REQ_ID_MASK = 0xFFFF <<
+ OCRDMA_AE_MPA_MCQE_REQ_ID_SHIFT,
+
+ OCRDMA_AE_MPA_MCQE_EVENT_CODE_SHIFT = 8,
+ OCRDMA_AE_MPA_MCQE_EVENT_CODE_MASK = 0xFF <<
+ OCRDMA_AE_MPA_MCQE_EVENT_CODE_SHIFT,
+ OCRDMA_AE_MPA_MCQE_EVENT_TYPE_SHIFT = 16,
+ OCRDMA_AE_MPA_MCQE_EVENT_TYPE_MASK = 0xFF <<
+ OCRDMA_AE_MPA_MCQE_EVENT_TYPE_SHIFT,
+ OCRDMA_AE_MPA_MCQE_EVENT_AE_SHIFT = 30,
+ OCRDMA_AE_MPA_MCQE_EVENT_AE_MASK = Bit(30),
+ OCRDMA_AE_MPA_MCQE_EVENT_VALID_SHIFT = 31,
+ OCRDMA_AE_MPA_MCQE_EVENT_VALID_MASK = Bit(31)
+};
+
+struct ocrdma_ae_mpa_mcqe {
+ u32 req_id;
+ u32 w1;
+ u32 w2;
+ u32 valid_ae_event;
+} __packed;
+
+enum {
+ OCRDMA_AE_QP_MCQE_NEW_QP_STATE_SHIFT = 0,
+ OCRDMA_AE_QP_MCQE_NEW_QP_STATE_MASK = 0xFFFF,
+ OCRDMA_AE_QP_MCQE_QP_ID_SHIFT = 16,
+ OCRDMA_AE_QP_MCQE_QP_ID_MASK = 0xFFFF <<
+ OCRDMA_AE_QP_MCQE_QP_ID_SHIFT,
+
+ OCRDMA_AE_QP_MCQE_EVENT_CODE_SHIFT = 8,
+ OCRDMA_AE_QP_MCQE_EVENT_CODE_MASK = 0xFF <<
+ OCRDMA_AE_QP_MCQE_EVENT_CODE_SHIFT,
+ OCRDMA_AE_QP_MCQE_EVENT_TYPE_SHIFT = 16,
+ OCRDMA_AE_QP_MCQE_EVENT_TYPE_MASK = 0xFF <<
+ OCRDMA_AE_QP_MCQE_EVENT_TYPE_SHIFT,
+ OCRDMA_AE_QP_MCQE_EVENT_AE_SHIFT = 30,
+ OCRDMA_AE_QP_MCQE_EVENT_AE_MASK = Bit(30),
+ OCRDMA_AE_QP_MCQE_EVENT_VALID_SHIFT = 31,
+ OCRDMA_AE_QP_MCQE_EVENT_VALID_MASK = Bit(31)
+};
+
+struct ocrdma_ae_qp_mcqe {
+ u32 qp_id_state;
+ u32 w1;
+ u32 w2;
+ u32 valid_ae_event;
+} __packed;
+
+#define OCRDMA_ASYNC_EVE_CODE 0x14
+
+enum OCRDMA_ASYNC_EVENT_TYPE {
+ OCRDMA_CQ_ERROR = 0x00,
+ OCRDMA_CQ_OVERRUN_ERROR = 0x01,
+ OCRDMA_CQ_QPCAT_ERROR = 0x02,
+ OCRDMA_QP_ACCESS_ERROR = 0x03,
+ OCRDMA_QP_COMM_EST_EVENT = 0x04,
+ OCRDMA_SQ_DRAINED_EVENT = 0x05,
+ OCRDMA_DEVICE_FATAL_EVENT = 0x08,
+ OCRDMA_SRQCAT_ERROR = 0x0E,
+ OCRDMA_SRQ_LIMIT_EVENT = 0x0F,
+ OCRDMA_QP_LAST_WQE_EVENT = 0x10
+};
+
+/* mailbox command request and responses */
+enum {
+ OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_SHIFT = 2,
+ OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_MASK = Bit(2),
+ OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_SHIFT = 3,
+ OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_MASK = Bit(3),
+ OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT = 8,
+ OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK = 0xFFFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT,
+ OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT = 8,
+ OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_MASK = 0xFF <<
+ OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK = 0xFFFF,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK = 0xFFFF,
+ OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET = 24,
+ OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_MASK = 0xFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_MASK = 0xFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CQES_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CQES_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CQES_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_RPIR_QPS_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_RPIR_QPS_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_RPIR_QPS_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CREDITS_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CREDITS_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_CREDITS_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_QPS_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_QPS_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_DPP_QPS_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_CQ_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_OFFSET,
+
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_RQE_OFFSET = 16,
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_RQE_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_RQE_OFFSET,
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET = 0,
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_MASK = 0xFFFF <<
+ OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET,
+};
+
+struct ocrdma_mbx_query_config {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+ u32 qp_srq_cq_ird_ord;
+ u32 max_pd_ca_ack_delay;
+ u32 max_write_send_sge;
+ u32 max_ird_ord_per_qp;
+ u32 max_shared_ird_ord;
+ u32 max_mr;
+ u64 max_mr_size;
+ u32 max_num_mr_pbl;
+ u32 max_mw;
+ u32 max_fmr;
+ u32 max_pages_per_frmr;
+ u32 max_mcast_group;
+ u32 max_mcast_qp_attach;
+ u32 max_total_mcast_qp_attach;
+ u32 wqe_rqe_stride_max_dpp_cqs;
+ u32 max_srq_rpir_qps;
+ u32 max_dpp_pds_credits;
+ u32 max_dpp_credits_pds_per_pd;
+ u32 max_wqes_rqes_per_q;
+ u32 max_cq_cqes_per_cq;
+ u32 max_srq_rqe_sge;
+} __packed;
+
+struct ocrdma_fw_ver_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u8 running_ver[32];
+} __packed;
+
+struct ocrdma_fw_conf_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 config_num;
+ u32 asic_revision;
+ u32 phy_port;
+ u32 fn_mode;
+ struct {
+ u32 mode;
+ u32 nic_wqid_base;
+ u32 nic_wq_tot;
+ u32 prot_wqid_base;
+ u32 prot_wq_tot;
+ u32 prot_rqid_base;
+ u32 prot_rqid_tot;
+ u32 rsvd[6];
+ } ulp[2];
+ u32 fn_capabilities;
+ u32 rsvd1;
+ u32 rsvd2;
+ u32 base_eqid;
+ u32 max_eq;
+
+} __packed;
+
+enum {
+ OCRDMA_FN_MODE_RDMA = 0x4
+};
+
+enum {
+ OCRDMA_CREATE_CQ_VER2 = 2,
+
+ OCRDMA_CREATE_CQ_PAGE_CNT_MASK = 0xFFFF,
+ OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT = 16,
+ OCRDMA_CREATE_CQ_PAGE_SIZE_MASK = 0xFF,
+
+ OCRDMA_CREATE_CQ_COALESCWM_SHIFT = 12,
+ OCRDMA_CREATE_CQ_COALESCWM_MASK = Bit(13) | Bit(12),
+ OCRDMA_CREATE_CQ_FLAGS_NODELAY = Bit(14),
+ OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID = Bit(15),
+
+ OCRDMA_CREATE_CQ_EQ_ID_MASK = 0xFFFF,
+ OCRDMA_CREATE_CQ_CQE_COUNT_MASK = 0xFFFF
+};
+
+enum {
+ OCRDMA_CREATE_CQ_VER0 = 0,
+ OCRDMA_CREATE_CQ_DPP = 1,
+ OCRDMA_CREATE_CQ_TYPE_SHIFT = 24,
+ OCRDMA_CREATE_CQ_EQID_SHIFT = 22,
+
+ OCRDMA_CREATE_CQ_CNT_SHIFT = 27,
+ OCRDMA_CREATE_CQ_FLAGS_VALID = Bit(29),
+ OCRDMA_CREATE_CQ_FLAGS_EVENTABLE = Bit(31),
+ OCRDMA_CREATE_CQ_DEF_FLAGS = OCRDMA_CREATE_CQ_FLAGS_VALID |
+ OCRDMA_CREATE_CQ_FLAGS_EVENTABLE |
+ OCRDMA_CREATE_CQ_FLAGS_NODELAY
+};
+
+struct ocrdma_create_cq_cmd {
+ struct ocrdma_mbx_hdr req;
+ u32 pgsz_pgcnt;
+ u32 ev_cnt_flags;
+ u32 eqn;
+ u32 cqe_count;
+ u32 rsvd6;
+ struct ocrdma_pa pa[OCRDMA_CREATE_CQ_MAX_PAGES];
+};
+
+struct ocrdma_create_cq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_create_cq_cmd cmd;
+} __packed;
+
+enum {
+ OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK = 0xFFFF
+};
+
+struct ocrdma_create_cq_cmd_rsp {
+ struct ocrdma_mbx_rsp rsp;
+ u32 cq_id;
+} __packed;
+
+struct ocrdma_create_cq_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_create_cq_cmd_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_CREATE_MQ_V0_CQ_ID_SHIFT = 22,
+ OCRDMA_CREATE_MQ_CQ_ID_SHIFT = 16,
+ OCRDMA_CREATE_MQ_RING_SIZE_SHIFT = 16,
+ OCRDMA_CREATE_MQ_VALID = Bit(31),
+ OCRDMA_CREATE_MQ_ASYNC_CQ_VALID = Bit(0)
+};
+
+struct ocrdma_create_mq_v0 {
+ u32 pages;
+ u32 cqid_ringsize;
+ u32 valid;
+ u32 async_cqid_valid;
+ u32 rsvd;
+ struct ocrdma_pa pa[8];
+} __packed;
+
+struct ocrdma_create_mq_v1 {
+ u32 cqid_pages;
+ u32 async_event_bitmap;
+ u32 async_cqid_ringsize;
+ u32 valid;
+ u32 async_cqid_valid;
+ u32 rsvd;
+ struct ocrdma_pa pa[8];
+} __packed;
+
+struct ocrdma_create_mq_req {
+ struct ocrdma_mbx_hdr req;
+ union {
+ struct ocrdma_create_mq_v0 v0;
+ struct ocrdma_create_mq_v1 v1;
+ };
+} __packed;
+
+struct ocrdma_create_mq_rsp {
+ struct ocrdma_mbx_rsp rsp;
+ u32 id;
+} __packed;
+
+enum {
+ OCRDMA_DESTROY_CQ_QID_SHIFT = 0,
+ OCRDMA_DESTROY_CQ_QID_MASK = 0xFFFF,
+ OCRDMA_DESTROY_CQ_QID_BYPASS_FLUSH_SHIFT = 16,
+ OCRDMA_DESTROY_CQ_QID_BYPASS_FLUSH_MASK = 0xFFFF <<
+ OCRDMA_DESTROY_CQ_QID_BYPASS_FLUSH_SHIFT
+};
+
+struct ocrdma_destroy_cq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 bypass_flush_qid;
+} __packed;
+
+struct ocrdma_destroy_cq_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_QPT_GSI = 1,
+ OCRDMA_QPT_RC = 2,
+ OCRDMA_QPT_UD = 4,
+};
+
+enum {
+ OCRDMA_CREATE_QP_REQ_PD_ID_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_PD_ID_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_SQ_PAGE_SIZE_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_RQ_PAGE_SIZE_SHIFT = 19,
+ OCRDMA_CREATE_QP_REQ_QPT_SHIFT = 29,
+ OCRDMA_CREATE_QP_REQ_QPT_MASK = Bit(31) | Bit(30) | Bit(29),
+
+ OCRDMA_CREATE_QP_REQ_MAX_RQE_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_MAX_RQE_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_MAX_WQE_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_FMR_EN_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_FMR_EN_MASK = Bit(0),
+ OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_SHIFT = 1,
+ OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_MASK = Bit(1),
+ OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_SHIFT = 2,
+ OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_MASK = Bit(2),
+ OCRDMA_CREATE_QP_REQ_INB_WREN_SHIFT = 3,
+ OCRDMA_CREATE_QP_REQ_INB_WREN_MASK = Bit(3),
+ OCRDMA_CREATE_QP_REQ_INB_RDEN_SHIFT = 4,
+ OCRDMA_CREATE_QP_REQ_INB_RDEN_MASK = Bit(4),
+ OCRDMA_CREATE_QP_REQ_USE_SRQ_SHIFT = 5,
+ OCRDMA_CREATE_QP_REQ_USE_SRQ_MASK = Bit(5),
+ OCRDMA_CREATE_QP_REQ_ENABLE_RPIR_SHIFT = 6,
+ OCRDMA_CREATE_QP_REQ_ENABLE_RPIR_MASK = Bit(6),
+ OCRDMA_CREATE_QP_REQ_ENABLE_DPP_SHIFT = 7,
+ OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK = Bit(7),
+ OCRDMA_CREATE_QP_REQ_ENABLE_DPP_CQ_SHIFT = 8,
+ OCRDMA_CREATE_QP_REQ_ENABLE_DPP_CQ_MASK = Bit(8),
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_MAX_IRD_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_MAX_IRD_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_MAX_ORD_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_RQE_SIZE_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_RQE_SIZE_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_WQE_SIZE_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_RQ_CQID_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_RQ_CQID_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_WQ_CQID_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT,
+
+ OCRDMA_CREATE_QP_REQ_DPP_CQPID_SHIFT = 0,
+ OCRDMA_CREATE_QP_REQ_DPP_CQPID_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT = 16,
+ OCRDMA_CREATE_QP_REQ_DPP_CREDIT_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT
+};
+
+enum {
+ OCRDMA_CREATE_QP_REQ_DPP_CREDIT_LIMIT = 16,
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_SHIFT = 1
+};
+
+#define MAX_OCRDMA_IRD_PAGES 4
+
+enum ocrdma_qp_flags {
+ OCRDMA_QP_MW_BIND = 1,
+ OCRDMA_QP_LKEY0 = (1 << 1),
+ OCRDMA_QP_FAST_REG = (1 << 2),
+ OCRDMA_QP_INB_RD = (1 << 6),
+ OCRDMA_QP_INB_WR = (1 << 7),
+};
+
+enum ocrdma_qp_state {
+ OCRDMA_QPS_RST = 0,
+ OCRDMA_QPS_INIT = 1,
+ OCRDMA_QPS_RTR = 2,
+ OCRDMA_QPS_RTS = 3,
+ OCRDMA_QPS_SQE = 4,
+ OCRDMA_QPS_SQ_DRAINING = 5,
+ OCRDMA_QPS_ERR = 6,
+ OCRDMA_QPS_SQD = 7
+};
+
+struct ocrdma_create_qp_req {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 type_pgsz_pdn;
+ u32 max_wqe_rqe;
+ u32 max_sge_send_write;
+ u32 max_sge_recv_flags;
+ u32 max_ord_ird;
+ u32 num_wq_rq_pages;
+ u32 wqe_rqe_size;
+ u32 wq_rq_cqid;
+ struct ocrdma_pa wq_addr[MAX_OCRDMA_QP_PAGES];
+ struct ocrdma_pa rq_addr[MAX_OCRDMA_QP_PAGES];
+ u32 dpp_credits_cqid;
+ u32 rpir_lkey;
+ struct ocrdma_pa ird_addr[MAX_OCRDMA_IRD_PAGES];
+} __packed;
+
+enum {
+ OCRDMA_CREATE_QP_RSP_QP_ID_SHIFT = 0,
+ OCRDMA_CREATE_QP_RSP_QP_ID_MASK = 0xFFFF,
+
+ OCRDMA_CREATE_QP_RSP_MAX_RQE_SHIFT = 0,
+ OCRDMA_CREATE_QP_RSP_MAX_RQE_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_MAX_WQE_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT,
+
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_WRITE_SHIFT = 0,
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_WRITE_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_SEND_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_SEND_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_SEND_SHIFT,
+
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_RECV_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_RECV_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_MAX_SGE_RECV_SHIFT,
+
+ OCRDMA_CREATE_QP_RSP_MAX_IRD_SHIFT = 0,
+ OCRDMA_CREATE_QP_RSP_MAX_IRD_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_MAX_ORD_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT,
+
+ OCRDMA_CREATE_QP_RSP_RQ_ID_SHIFT = 0,
+ OCRDMA_CREATE_QP_RSP_RQ_ID_MASK = 0xFFFF,
+ OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_SQ_ID_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT,
+
+ OCRDMA_CREATE_QP_RSP_DPP_ENABLED_MASK = Bit(0),
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT = 1,
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_MASK = 0x7FFF <<
+ OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT,
+ OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT = 16,
+ OCRDMA_CREATE_QP_RSP_DPP_CREDITS_MASK = 0xFFFF <<
+ OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT,
+};
+
+struct ocrdma_create_qp_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 qp_id;
+ u32 max_wqe_rqe;
+ u32 max_sge_send_write;
+ u32 max_sge_recv;
+ u32 max_ord_ird;
+ u32 sq_rq_id;
+ u32 dpp_response;
+} __packed;
+
+struct ocrdma_destroy_qp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 qp_id;
+} __packed;
+
+struct ocrdma_destroy_qp_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_MODIFY_QP_ID_SHIFT = 0,
+ OCRDMA_MODIFY_QP_ID_MASK = 0xFFFF,
+
+ OCRDMA_QP_PARA_QPS_VALID = Bit(0),
+ OCRDMA_QP_PARA_SQD_ASYNC_VALID = Bit(1),
+ OCRDMA_QP_PARA_PKEY_VALID = Bit(2),
+ OCRDMA_QP_PARA_QKEY_VALID = Bit(3),
+ OCRDMA_QP_PARA_PMTU_VALID = Bit(4),
+ OCRDMA_QP_PARA_ACK_TO_VALID = Bit(5),
+ OCRDMA_QP_PARA_RETRY_CNT_VALID = Bit(6),
+ OCRDMA_QP_PARA_RRC_VALID = Bit(7),
+ OCRDMA_QP_PARA_RQPSN_VALID = Bit(8),
+ OCRDMA_QP_PARA_MAX_IRD_VALID = Bit(9),
+ OCRDMA_QP_PARA_MAX_ORD_VALID = Bit(10),
+ OCRDMA_QP_PARA_RNT_VALID = Bit(11),
+ OCRDMA_QP_PARA_SQPSN_VALID = Bit(12),
+ OCRDMA_QP_PARA_DST_QPN_VALID = Bit(13),
+ OCRDMA_QP_PARA_MAX_WQE_VALID = Bit(14),
+ OCRDMA_QP_PARA_MAX_RQE_VALID = Bit(15),
+ OCRDMA_QP_PARA_SGE_SEND_VALID = Bit(16),
+ OCRDMA_QP_PARA_SGE_RECV_VALID = Bit(17),
+ OCRDMA_QP_PARA_SGE_WR_VALID = Bit(18),
+ OCRDMA_QP_PARA_INB_RDEN_VALID = Bit(19),
+ OCRDMA_QP_PARA_INB_WREN_VALID = Bit(20),
+ OCRDMA_QP_PARA_FLOW_LBL_VALID = Bit(21),
+ OCRDMA_QP_PARA_BIND_EN_VALID = Bit(22),
+ OCRDMA_QP_PARA_ZLKEY_EN_VALID = Bit(23),
+ OCRDMA_QP_PARA_FMR_EN_VALID = Bit(24),
+ OCRDMA_QP_PARA_INBAT_EN_VALID = Bit(25),
+ OCRDMA_QP_PARA_VLAN_EN_VALID = Bit(26),
+
+ OCRDMA_MODIFY_QP_FLAGS_RD = Bit(0),
+ OCRDMA_MODIFY_QP_FLAGS_WR = Bit(1),
+ OCRDMA_MODIFY_QP_FLAGS_SEND = Bit(2),
+ OCRDMA_MODIFY_QP_FLAGS_ATOMIC = Bit(3)
+};
+
+enum {
+ OCRDMA_QP_PARAMS_SRQ_ID_SHIFT = 0,
+ OCRDMA_QP_PARAMS_SRQ_ID_MASK = 0xFFFF,
+
+ OCRDMA_QP_PARAMS_MAX_RQE_SHIFT = 0,
+ OCRDMA_QP_PARAMS_MAX_RQE_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_MAX_WQE_SHIFT = 16,
+ OCRDMA_QP_PARAMS_MAX_WQE_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_MAX_WQE_SHIFT,
+
+ OCRDMA_QP_PARAMS_MAX_SGE_WRITE_SHIFT = 0,
+ OCRDMA_QP_PARAMS_MAX_SGE_WRITE_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_MAX_SGE_SEND_SHIFT = 16,
+ OCRDMA_QP_PARAMS_MAX_SGE_SEND_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_MAX_SGE_SEND_SHIFT,
+
+ OCRDMA_QP_PARAMS_FLAGS_FMR_EN = Bit(0),
+ OCRDMA_QP_PARAMS_FLAGS_LKEY_0_EN = Bit(1),
+ OCRDMA_QP_PARAMS_FLAGS_BIND_MW_EN = Bit(2),
+ OCRDMA_QP_PARAMS_FLAGS_INBWR_EN = Bit(3),
+ OCRDMA_QP_PARAMS_FLAGS_INBRD_EN = Bit(4),
+ OCRDMA_QP_PARAMS_STATE_SHIFT = 5,
+ OCRDMA_QP_PARAMS_STATE_MASK = Bit(5) | Bit(6) | Bit(7),
+ OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC = Bit(8),
+ OCRDMA_QP_PARAMS_FLAGS_INB_ATEN = Bit(9),
+ OCRDMA_QP_PARAMS_MAX_SGE_RECV_SHIFT = 16,
+ OCRDMA_QP_PARAMS_MAX_SGE_RECV_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_MAX_SGE_RECV_SHIFT,
+
+ OCRDMA_QP_PARAMS_MAX_IRD_SHIFT = 0,
+ OCRDMA_QP_PARAMS_MAX_IRD_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_MAX_ORD_SHIFT = 16,
+ OCRDMA_QP_PARAMS_MAX_ORD_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_MAX_ORD_SHIFT,
+
+ OCRDMA_QP_PARAMS_RQ_CQID_SHIFT = 0,
+ OCRDMA_QP_PARAMS_RQ_CQID_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_WQ_CQID_SHIFT = 16,
+ OCRDMA_QP_PARAMS_WQ_CQID_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_WQ_CQID_SHIFT,
+
+ OCRDMA_QP_PARAMS_RQ_PSN_SHIFT = 0,
+ OCRDMA_QP_PARAMS_RQ_PSN_MASK = 0xFFFFFF,
+ OCRDMA_QP_PARAMS_HOP_LMT_SHIFT = 24,
+ OCRDMA_QP_PARAMS_HOP_LMT_MASK = 0xFF <<
+ OCRDMA_QP_PARAMS_HOP_LMT_SHIFT,
+
+ OCRDMA_QP_PARAMS_SQ_PSN_SHIFT = 0,
+ OCRDMA_QP_PARAMS_SQ_PSN_MASK = 0xFFFFFF,
+ OCRDMA_QP_PARAMS_TCLASS_SHIFT = 24,
+ OCRDMA_QP_PARAMS_TCLASS_MASK = 0xFF <<
+ OCRDMA_QP_PARAMS_TCLASS_SHIFT,
+
+ OCRDMA_QP_PARAMS_DEST_QPN_SHIFT = 0,
+ OCRDMA_QP_PARAMS_DEST_QPN_MASK = 0xFFFFFF,
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT = 24,
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK = 0x7 <<
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT,
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT = 27,
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_MASK = 0x1F <<
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT,
+
+ OCRDMA_QP_PARAMS_PKEY_IDNEX_SHIFT = 0,
+ OCRDMA_QP_PARAMS_PKEY_INDEX_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_PATH_MTU_SHIFT = 18,
+ OCRDMA_QP_PARAMS_PATH_MTU_MASK = 0x3FFF <<
+ OCRDMA_QP_PARAMS_PATH_MTU_SHIFT,
+
+ OCRDMA_QP_PARAMS_FLOW_LABEL_SHIFT = 0,
+ OCRDMA_QP_PARAMS_FLOW_LABEL_MASK = 0xFFFFF,
+ OCRDMA_QP_PARAMS_SL_SHIFT = 20,
+ OCRDMA_QP_PARAMS_SL_MASK = 0xF <<
+ OCRDMA_QP_PARAMS_SL_SHIFT,
+ OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT = 24,
+ OCRDMA_QP_PARAMS_RETRY_CNT_MASK = 0x7 <<
+ OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT,
+ OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT = 27,
+ OCRDMA_QP_PARAMS_RNR_NAK_TIMER_MASK = 0x1F <<
+ OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT,
+
+ OCRDMA_QP_PARAMS_DMAC_B4_TO_B5_SHIFT = 0,
+ OCRDMA_QP_PARAMS_DMAC_B4_TO_B5_MASK = 0xFFFF,
+ OCRDMA_QP_PARAMS_VLAN_SHIFT = 16,
+ OCRDMA_QP_PARAMS_VLAN_MASK = 0xFFFF <<
+ OCRDMA_QP_PARAMS_VLAN_SHIFT
+};
+
+struct ocrdma_qp_params {
+ u32 id;
+ u32 max_wqe_rqe;
+ u32 max_sge_send_write;
+ u32 max_sge_recv_flags;
+ u32 max_ord_ird;
+ u32 wq_rq_cqid;
+ u32 hop_lmt_rq_psn;
+ u32 tclass_sq_psn;
+ u32 ack_to_rnr_rtc_dest_qpn;
+ u32 path_mtu_pkey_indx;
+ u32 rnt_rc_sl_fl;
+ u8 sgid[16];
+ u8 dgid[16];
+ u32 dmac_b0_to_b3;
+ u32 vlan_dmac_b4_to_b5;
+ u32 qkey;
+} __packed;
+
+
+struct ocrdma_modify_qp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ struct ocrdma_qp_params params;
+ u32 flags;
+ u32 rdma_flags;
+ u32 num_outstanding_atomic_rd;
+} __packed;
+
+enum {
+ OCRDMA_MODIFY_QP_RSP_MAX_RQE_SHIFT = 0,
+ OCRDMA_MODIFY_QP_RSP_MAX_RQE_MASK = 0xFFFF,
+ OCRDMA_MODIFY_QP_RSP_MAX_WQE_SHIFT = 16,
+ OCRDMA_MODIFY_QP_RSP_MAX_WQE_MASK = 0xFFFF <<
+ OCRDMA_MODIFY_QP_RSP_MAX_WQE_SHIFT,
+
+ OCRDMA_MODIFY_QP_RSP_MAX_IRD_SHIFT = 0,
+ OCRDMA_MODIFY_QP_RSP_MAX_IRD_MASK = 0xFFFF,
+ OCRDMA_MODIFY_QP_RSP_MAX_ORD_SHIFT = 16,
+ OCRDMA_MODIFY_QP_RSP_MAX_ORD_MASK = 0xFFFF <<
+ OCRDMA_MODIFY_QP_RSP_MAX_ORD_SHIFT
+};
+struct ocrdma_modify_qp_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 max_wqe_rqe;
+ u32 max_ord_ird;
+} __packed;
+
+struct ocrdma_query_qp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+#define OCRDMA_QUERY_UP_QP_ID_SHIFT 0
+#define OCRDMA_QUERY_UP_QP_ID_MASK 0xFFFFFF
+ u32 qp_id;
+} __packed;
+
+struct ocrdma_query_qp_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+ struct ocrdma_qp_params params;
+} __packed;
+
+enum {
+ OCRDMA_CREATE_SRQ_PD_ID_SHIFT = 0,
+ OCRDMA_CREATE_SRQ_PD_ID_MASK = 0xFFFF,
+ OCRDMA_CREATE_SRQ_PG_SZ_SHIFT = 16,
+ OCRDMA_CREATE_SRQ_PG_SZ_MASK = 0x3 <<
+ OCRDMA_CREATE_SRQ_PG_SZ_SHIFT,
+
+ OCRDMA_CREATE_SRQ_MAX_RQE_SHIFT = 0,
+ OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT = 16,
+ OCRDMA_CREATE_SRQ_MAX_SGE_RECV_MASK = 0xFFFF <<
+ OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT,
+
+ OCRDMA_CREATE_SRQ_RQE_SIZE_SHIFT = 0,
+ OCRDMA_CREATE_SRQ_RQE_SIZE_MASK = 0xFFFF,
+ OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT = 16,
+ OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_MASK = 0xFFFF <<
+ OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT
+};
+
+struct ocrdma_create_srq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 pgsz_pdid;
+ u32 max_sge_rqe;
+ u32 pages_rqe_sz;
+ struct ocrdma_pa rq_addr[MAX_OCRDMA_SRQ_PAGES];
+} __packed;
+
+enum {
+ OCRDMA_CREATE_SRQ_RSP_SRQ_ID_SHIFT = 0,
+ OCRDMA_CREATE_SRQ_RSP_SRQ_ID_MASK = 0xFFFFFF,
+
+ OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_SHIFT = 0,
+ OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_MASK = 0xFFFF,
+ OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT = 16,
+ OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_MASK = 0xFFFF <<
+ OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT
+};
+
+struct ocrdma_create_srq_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 id;
+ u32 max_sge_rqe_allocated;
+} __packed;
+
+enum {
+ OCRDMA_MODIFY_SRQ_ID_SHIFT = 0,
+ OCRDMA_MODIFY_SRQ_ID_MASK = 0xFFFFFF,
+
+ OCRDMA_MODIFY_SRQ_MAX_RQE_SHIFT = 0,
+ OCRDMA_MODIFY_SRQ_MAX_RQE_MASK = 0xFFFF,
+ OCRDMA_MODIFY_SRQ_LIMIT_SHIFT = 16,
+ OCRDMA_MODIFY_SRQ__LIMIT_MASK = 0xFFFF <<
+ OCRDMA_MODIFY_SRQ_LIMIT_SHIFT
+};
+
+struct ocrdma_modify_srq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rep;
+
+ u32 id;
+ u32 limit_max_rqe;
+} __packed;
+
+enum {
+ OCRDMA_QUERY_SRQ_ID_SHIFT = 0,
+ OCRDMA_QUERY_SRQ_ID_MASK = 0xFFFFFF
+};
+
+struct ocrdma_query_srq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp req;
+
+ u32 id;
+} __packed;
+
+enum {
+ OCRDMA_QUERY_SRQ_RSP_PD_ID_SHIFT = 0,
+ OCRDMA_QUERY_SRQ_RSP_PD_ID_MASK = 0xFFFF,
+ OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT = 16,
+ OCRDMA_QUERY_SRQ_RSP_MAX_RQE_MASK = 0xFFFF <<
+ OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT,
+
+ OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_SHIFT = 0,
+ OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_MASK = 0xFFFF,
+ OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT = 16,
+ OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_MASK = 0xFFFF <<
+ OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT
+};
+
+struct ocrdma_query_srq_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp req;
+
+ u32 max_rqe_pdid;
+ u32 srq_lmt_max_sge;
+} __packed;
+
+enum {
+ OCRDMA_DESTROY_SRQ_ID_SHIFT = 0,
+ OCRDMA_DESTROY_SRQ_ID_MASK = 0xFFFFFF
+};
+
+struct ocrdma_destroy_srq {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp req;
+
+ u32 id;
+} __packed;
+
+enum {
+ OCRDMA_ALLOC_PD_ENABLE_DPP = BIT(16),
+ OCRDMA_PD_MAX_DPP_ENABLED_QP = 8,
+ OCRDMA_DPP_PAGE_SIZE = 4096
+};
+
+struct ocrdma_alloc_pd {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 enable_dpp_rsvd;
+} __packed;
+
+enum {
+ OCRDMA_ALLOC_PD_RSP_DPP = Bit(16),
+ OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT = 20,
+ OCRDMA_ALLOC_PD_RSP_PDID_MASK = 0xFFFF,
+};
+
+struct ocrdma_alloc_pd_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+ u32 dpp_page_pdid;
+} __packed;
+
+struct ocrdma_dealloc_pd {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 id;
+} __packed;
+
+struct ocrdma_dealloc_pd_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_ADDR_CHECK_ENABLE = 1,
+ OCRDMA_ADDR_CHECK_DISABLE = 0
+};
+
+enum {
+ OCRDMA_ALLOC_LKEY_PD_ID_SHIFT = 0,
+ OCRDMA_ALLOC_LKEY_PD_ID_MASK = 0xFFFF,
+
+ OCRDMA_ALLOC_LKEY_ADDR_CHECK_SHIFT = 0,
+ OCRDMA_ALLOC_LKEY_ADDR_CHECK_MASK = Bit(0),
+ OCRDMA_ALLOC_LKEY_FMR_SHIFT = 1,
+ OCRDMA_ALLOC_LKEY_FMR_MASK = Bit(1),
+ OCRDMA_ALLOC_LKEY_REMOTE_INV_SHIFT = 2,
+ OCRDMA_ALLOC_LKEY_REMOTE_INV_MASK = Bit(2),
+ OCRDMA_ALLOC_LKEY_REMOTE_WR_SHIFT = 3,
+ OCRDMA_ALLOC_LKEY_REMOTE_WR_MASK = Bit(3),
+ OCRDMA_ALLOC_LKEY_REMOTE_RD_SHIFT = 4,
+ OCRDMA_ALLOC_LKEY_REMOTE_RD_MASK = Bit(4),
+ OCRDMA_ALLOC_LKEY_LOCAL_WR_SHIFT = 5,
+ OCRDMA_ALLOC_LKEY_LOCAL_WR_MASK = Bit(5),
+ OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_MASK = Bit(6),
+ OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_SHIFT = 6,
+ OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT = 16,
+ OCRDMA_ALLOC_LKEY_PBL_SIZE_MASK = 0xFFFF <<
+ OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT
+};
+
+struct ocrdma_alloc_lkey {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 pdid;
+ u32 pbl_sz_flags;
+} __packed;
+
+struct ocrdma_alloc_lkey_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 lrkey;
+ u32 num_pbl_rsvd;
+} __packed;
+
+struct ocrdma_dealloc_lkey {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 lkey;
+ u32 rsvd_frmr;
+} __packed;
+
+struct ocrdma_dealloc_lkey_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+#define MAX_OCRDMA_NSMR_PBL (u32)22
+#define MAX_OCRDMA_PBL_SIZE 65536
+#define MAX_OCRDMA_PBL_PER_LKEY 32767
+
+enum {
+ OCRDMA_REG_NSMR_LRKEY_INDEX_SHIFT = 0,
+ OCRDMA_REG_NSMR_LRKEY_INDEX_MASK = 0xFFFFFF,
+ OCRDMA_REG_NSMR_LRKEY_SHIFT = 24,
+ OCRDMA_REG_NSMR_LRKEY_MASK = 0xFF <<
+ OCRDMA_REG_NSMR_LRKEY_SHIFT,
+
+ OCRDMA_REG_NSMR_PD_ID_SHIFT = 0,
+ OCRDMA_REG_NSMR_PD_ID_MASK = 0xFFFF,
+ OCRDMA_REG_NSMR_NUM_PBL_SHIFT = 16,
+ OCRDMA_REG_NSMR_NUM_PBL_MASK = 0xFFFF <<
+ OCRDMA_REG_NSMR_NUM_PBL_SHIFT,
+
+ OCRDMA_REG_NSMR_PBE_SIZE_SHIFT = 0,
+ OCRDMA_REG_NSMR_PBE_SIZE_MASK = 0xFFFF,
+ OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT = 16,
+ OCRDMA_REG_NSMR_HPAGE_SIZE_MASK = 0xFF <<
+ OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT,
+ OCRDMA_REG_NSMR_BIND_MEMWIN_SHIFT = 24,
+ OCRDMA_REG_NSMR_BIND_MEMWIN_MASK = Bit(24),
+ OCRDMA_REG_NSMR_ZB_SHIFT = 25,
+ OCRDMA_REG_NSMR_ZB_SHIFT_MASK = Bit(25),
+ OCRDMA_REG_NSMR_REMOTE_INV_SHIFT = 26,
+ OCRDMA_REG_NSMR_REMOTE_INV_MASK = Bit(26),
+ OCRDMA_REG_NSMR_REMOTE_WR_SHIFT = 27,
+ OCRDMA_REG_NSMR_REMOTE_WR_MASK = Bit(27),
+ OCRDMA_REG_NSMR_REMOTE_RD_SHIFT = 28,
+ OCRDMA_REG_NSMR_REMOTE_RD_MASK = Bit(28),
+ OCRDMA_REG_NSMR_LOCAL_WR_SHIFT = 29,
+ OCRDMA_REG_NSMR_LOCAL_WR_MASK = Bit(29),
+ OCRDMA_REG_NSMR_REMOTE_ATOMIC_SHIFT = 30,
+ OCRDMA_REG_NSMR_REMOTE_ATOMIC_MASK = Bit(30),
+ OCRDMA_REG_NSMR_LAST_SHIFT = 31,
+ OCRDMA_REG_NSMR_LAST_MASK = Bit(31)
+};
+
+struct ocrdma_reg_nsmr {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr cmd;
+
+ u32 lrkey_key_index;
+ u32 num_pbl_pdid;
+ u32 flags_hpage_pbe_sz;
+ u32 totlen_low;
+ u32 totlen_high;
+ u32 fbo_low;
+ u32 fbo_high;
+ u32 va_loaddr;
+ u32 va_hiaddr;
+ struct ocrdma_pa pbl[MAX_OCRDMA_NSMR_PBL];
+} __packed;
+
+enum {
+ OCRDMA_REG_NSMR_CONT_PBL_SHIFT = 0,
+ OCRDMA_REG_NSMR_CONT_PBL_SHIFT_MASK = 0xFFFF,
+ OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT = 16,
+ OCRDMA_REG_NSMR_CONT_NUM_PBL_MASK = 0xFFFF <<
+ OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT,
+
+ OCRDMA_REG_NSMR_CONT_LAST_SHIFT = 31,
+ OCRDMA_REG_NSMR_CONT_LAST_MASK = Bit(31)
+};
+
+struct ocrdma_reg_nsmr_cont {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr cmd;
+
+ u32 lrkey;
+ u32 num_pbl_offset;
+ u32 last;
+
+ struct ocrdma_pa pbl[MAX_OCRDMA_NSMR_PBL];
+} __packed;
+
+struct ocrdma_pbe {
+ u32 pa_hi;
+ u32 pa_lo;
+} __packed;
+
+enum {
+ OCRDMA_REG_NSMR_RSP_NUM_PBL_SHIFT = 16,
+ OCRDMA_REG_NSMR_RSP_NUM_PBL_MASK = 0xFFFF0000
+};
+struct ocrdma_reg_nsmr_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 lrkey;
+ u32 num_pbl;
+} __packed;
+
+enum {
+ OCRDMA_REG_NSMR_CONT_RSP_LRKEY_INDEX_SHIFT = 0,
+ OCRDMA_REG_NSMR_CONT_RSP_LRKEY_INDEX_MASK = 0xFFFFFF,
+ OCRDMA_REG_NSMR_CONT_RSP_LRKEY_SHIFT = 24,
+ OCRDMA_REG_NSMR_CONT_RSP_LRKEY_MASK = 0xFF <<
+ OCRDMA_REG_NSMR_CONT_RSP_LRKEY_SHIFT,
+
+ OCRDMA_REG_NSMR_CONT_RSP_NUM_PBL_SHIFT = 16,
+ OCRDMA_REG_NSMR_CONT_RSP_NUM_PBL_MASK = 0xFFFF <<
+ OCRDMA_REG_NSMR_CONT_RSP_NUM_PBL_SHIFT
+};
+
+struct ocrdma_reg_nsmr_cont_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 lrkey_key_index;
+ u32 num_pbl;
+} __packed;
+
+enum {
+ OCRDMA_ALLOC_MW_PD_ID_SHIFT = 0,
+ OCRDMA_ALLOC_MW_PD_ID_MASK = 0xFFFF
+};
+
+struct ocrdma_alloc_mw {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 pdid;
+} __packed;
+
+enum {
+ OCRDMA_ALLOC_MW_RSP_LRKEY_INDEX_SHIFT = 0,
+ OCRDMA_ALLOC_MW_RSP_LRKEY_INDEX_MASK = 0xFFFFFF
+};
+
+struct ocrdma_alloc_mw_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+
+ u32 lrkey_index;
+} __packed;
+
+struct ocrdma_attach_mcast {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 qp_id;
+ u8 mgid[16];
+ u32 mac_b0_to_b3;
+ u32 vlan_mac_b4_to_b5;
+} __packed;
+
+struct ocrdma_attach_mcast_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+struct ocrdma_detach_mcast {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 qp_id;
+ u8 mgid[16];
+ u32 mac_b0_to_b3;
+ u32 vlan_mac_b4_to_b5;
+} __packed;
+
+struct ocrdma_detach_mcast_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_CREATE_AH_NUM_PAGES_SHIFT = 19,
+ OCRDMA_CREATE_AH_NUM_PAGES_MASK = 0xF <<
+ OCRDMA_CREATE_AH_NUM_PAGES_SHIFT,
+
+ OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT = 16,
+ OCRDMA_CREATE_AH_PAGE_SIZE_MASK = 0x7 <<
+ OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT,
+
+ OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT = 23,
+ OCRDMA_CREATE_AH_ENTRY_SIZE_MASK = 0x1FF <<
+ OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT,
+};
+
+#define OCRDMA_AH_TBL_PAGES 8
+
+struct ocrdma_create_ah_tbl {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+
+ u32 ah_conf;
+ struct ocrdma_pa tbl_addr[8];
+} __packed;
+
+struct ocrdma_create_ah_tbl_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+ u32 ahid;
+} __packed;
+
+struct ocrdma_delete_ah_tbl {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_hdr req;
+ u32 ahid;
+} __packed;
+
+struct ocrdma_delete_ah_tbl_rsp {
+ struct ocrdma_mqe_hdr hdr;
+ struct ocrdma_mbx_rsp rsp;
+} __packed;
+
+enum {
+ OCRDMA_EQE_VALID_SHIFT = 0,
+ OCRDMA_EQE_VALID_MASK = Bit(0),
+ OCRDMA_EQE_FOR_CQE_MASK = 0xFFFE,
+ OCRDMA_EQE_RESOURCE_ID_SHIFT = 16,
+ OCRDMA_EQE_RESOURCE_ID_MASK = 0xFFFF <<
+ OCRDMA_EQE_RESOURCE_ID_SHIFT,
+};
+
+struct ocrdma_eqe {
+ u32 id_valid;
+} __packed;
+
+enum OCRDMA_CQE_STATUS {
+ OCRDMA_CQE_SUCCESS = 0,
+ OCRDMA_CQE_LOC_LEN_ERR,
+ OCRDMA_CQE_LOC_QP_OP_ERR,
+ OCRDMA_CQE_LOC_EEC_OP_ERR,
+ OCRDMA_CQE_LOC_PROT_ERR,
+ OCRDMA_CQE_WR_FLUSH_ERR,
+ OCRDMA_CQE_MW_BIND_ERR,
+ OCRDMA_CQE_BAD_RESP_ERR,
+ OCRDMA_CQE_LOC_ACCESS_ERR,
+ OCRDMA_CQE_REM_INV_REQ_ERR,
+ OCRDMA_CQE_REM_ACCESS_ERR,
+ OCRDMA_CQE_REM_OP_ERR,
+ OCRDMA_CQE_RETRY_EXC_ERR,
+ OCRDMA_CQE_RNR_RETRY_EXC_ERR,
+ OCRDMA_CQE_LOC_RDD_VIOL_ERR,
+ OCRDMA_CQE_REM_INV_RD_REQ_ERR,
+ OCRDMA_CQE_REM_ABORT_ERR,
+ OCRDMA_CQE_INV_EECN_ERR,
+ OCRDMA_CQE_INV_EEC_STATE_ERR,
+ OCRDMA_CQE_FATAL_ERR,
+ OCRDMA_CQE_RESP_TIMEOUT_ERR,
+ OCRDMA_CQE_GENERAL_ERR
+};
+
+enum {
+ /* w0 */
+ OCRDMA_CQE_WQEIDX_SHIFT = 0,
+ OCRDMA_CQE_WQEIDX_MASK = 0xFFFF,
+
+ /* w1 */
+ OCRDMA_CQE_UD_XFER_LEN_SHIFT = 16,
+ OCRDMA_CQE_PKEY_SHIFT = 0,
+ OCRDMA_CQE_PKEY_MASK = 0xFFFF,
+
+ /* w2 */
+ OCRDMA_CQE_QPN_SHIFT = 0,
+ OCRDMA_CQE_QPN_MASK = 0x0000FFFF,
+
+ OCRDMA_CQE_BUFTAG_SHIFT = 16,
+ OCRDMA_CQE_BUFTAG_MASK = 0xFFFF << OCRDMA_CQE_BUFTAG_SHIFT,
+
+ /* w3 */
+ OCRDMA_CQE_UD_STATUS_SHIFT = 24,
+ OCRDMA_CQE_UD_STATUS_MASK = 0x7 << OCRDMA_CQE_UD_STATUS_SHIFT,
+ OCRDMA_CQE_STATUS_SHIFT = 16,
+ OCRDMA_CQE_STATUS_MASK = 0xFF << OCRDMA_CQE_STATUS_SHIFT,
+ OCRDMA_CQE_VALID = Bit(31),
+ OCRDMA_CQE_INVALIDATE = Bit(30),
+ OCRDMA_CQE_QTYPE = Bit(29),
+ OCRDMA_CQE_IMM = Bit(28),
+ OCRDMA_CQE_WRITE_IMM = Bit(27),
+ OCRDMA_CQE_QTYPE_SQ = 0,
+ OCRDMA_CQE_QTYPE_RQ = 1,
+ OCRDMA_CQE_SRCQP_MASK = 0xFFFFFF
+};
+
+struct ocrdma_cqe {
+ union {
+ /* w0 to w2 */
+ struct {
+ u32 wqeidx;
+ u32 bytes_xfered;
+ u32 qpn;
+ } wq;
+ struct {
+ u32 lkey_immdt;
+ u32 rxlen;
+ u32 buftag_qpn;
+ } rq;
+ struct {
+ u32 lkey_immdt;
+ u32 rxlen_pkey;
+ u32 buftag_qpn;
+ } ud;
+ struct {
+ u32 word_0;
+ u32 word_1;
+ u32 qpn;
+ } cmn;
+ };
+ u32 flags_status_srcqpn; /* w3 */
+} __packed;
+
+#define is_cqe_valid(cq, cqe) \
+ (((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_VALID)\
+ == cq->phase) ? 1 : 0)
+#define is_cqe_for_sq(cqe) \
+ ((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_QTYPE) ? 0 : 1)
+#define is_cqe_for_rq(cqe) \
+ ((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_QTYPE) ? 1 : 0)
+#define is_cqe_invalidated(cqe) \
+ ((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_INVALIDATE) ? \
+ 1 : 0)
+#define is_cqe_imm(cqe) \
+ ((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_IMM) ? 1 : 0)
+#define is_cqe_wr_imm(cqe) \
+ ((le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_WRITE_IMM) ? 1 : 0)
+
+struct ocrdma_sge {
+ u32 addr_hi;
+ u32 addr_lo;
+ u32 lrkey;
+ u32 len;
+} __packed;
+
+enum {
+ OCRDMA_FLAG_SIG = 0x1,
+ OCRDMA_FLAG_INV = 0x2,
+ OCRDMA_FLAG_FENCE_L = 0x4,
+ OCRDMA_FLAG_FENCE_R = 0x8,
+ OCRDMA_FLAG_SOLICIT = 0x10,
+ OCRDMA_FLAG_IMM = 0x20,
+
+ /* Stag flags */
+ OCRDMA_LKEY_FLAG_LOCAL_WR = 0x1,
+ OCRDMA_LKEY_FLAG_REMOTE_RD = 0x2,
+ OCRDMA_LKEY_FLAG_REMOTE_WR = 0x4,
+ OCRDMA_LKEY_FLAG_VATO = 0x8,
+};
+
+enum OCRDMA_WQE_OPCODE {
+ OCRDMA_WRITE = 0x06,
+ OCRDMA_READ = 0x0C,
+ OCRDMA_RESV0 = 0x02,
+ OCRDMA_SEND = 0x00,
+ OCRDMA_CMP_SWP = 0x14,
+ OCRDMA_BIND_MW = 0x10,
+ OCRDMA_RESV1 = 0x0A,
+ OCRDMA_LKEY_INV = 0x15,
+ OCRDMA_FETCH_ADD = 0x13,
+ OCRDMA_POST_RQ = 0x12
+};
+
+enum {
+ OCRDMA_TYPE_INLINE = 0x0,
+ OCRDMA_TYPE_LKEY = 0x1,
+};
+
+enum {
+ OCRDMA_WQE_OPCODE_SHIFT = 0,
+ OCRDMA_WQE_OPCODE_MASK = 0x0000001F,
+ OCRDMA_WQE_FLAGS_SHIFT = 5,
+ OCRDMA_WQE_TYPE_SHIFT = 16,
+ OCRDMA_WQE_TYPE_MASK = 0x00030000,
+ OCRDMA_WQE_SIZE_SHIFT = 18,
+ OCRDMA_WQE_SIZE_MASK = 0xFF,
+ OCRDMA_WQE_NXT_WQE_SIZE_SHIFT = 25,
+
+ OCRDMA_WQE_LKEY_FLAGS_SHIFT = 0,
+ OCRDMA_WQE_LKEY_FLAGS_MASK = 0xF
+};
+
+/* header WQE for all the SQ and RQ operations */
+struct ocrdma_hdr_wqe {
+ u32 cw;
+ union {
+ u32 rsvd_tag;
+ u32 rsvd_lkey_flags;
+ };
+ union {
+ u32 immdt;
+ u32 lkey;
+ };
+ u32 total_len;
+} __packed;
+
+struct ocrdma_ewqe_ud_hdr {
+ u32 rsvd_dest_qpn;
+ u32 qkey;
+ u32 rsvd_ahid;
+ u32 rsvd;
+} __packed;
+
+struct ocrdma_eth_basic {
+ u8 dmac[6];
+ u8 smac[6];
+ __be16 eth_type;
+} __packed;
+
+struct ocrdma_eth_vlan {
+ u8 dmac[6];
+ u8 smac[6];
+ __be16 eth_type;
+ __be16 vlan_tag;
+#define OCRDMA_ROCE_ETH_TYPE 0x8915
+ __be16 roce_eth_type;
+} __packed;
+
+struct ocrdma_grh {
+ __be32 tclass_flow;
+ __be32 pdid_hoplimit;
+ u8 sgid[16];
+ u8 dgid[16];
+ u16 rsvd;
+} __packed;
+
+#define OCRDMA_AV_VALID Bit(0)
+#define OCRDMA_AV_VLAN_VALID Bit(1)
+
+struct ocrdma_av {
+ struct ocrdma_eth_vlan eth_hdr;
+ struct ocrdma_grh grh;
+ u32 valid;
+} __packed;
+
+#endif /* __OCRDMA_SLI_H__ */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
new file mode 100644
index 000000000000..51fc9c7c0acf
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -0,0 +1,2542 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#include <linux/dma-mapping.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/iw_cm.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_addr.h>
+
+#include "ocrdma.h"
+#include "ocrdma_hw.h"
+#include "ocrdma_verbs.h"
+#include "ocrdma_abi.h"
+
+int ocrdma_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
+{
+ if (index > 1)
+ return -EINVAL;
+
+ *pkey = 0xffff;
+ return 0;
+}
+
+int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
+ int index, union ib_gid *sgid)
+{
+ struct ocrdma_dev *dev;
+
+ dev = get_ocrdma_dev(ibdev);
+ memset(sgid, 0, sizeof(*sgid));
+ if (index > OCRDMA_MAX_SGID)
+ return -EINVAL;
+
+ memcpy(sgid, &dev->sgid_tbl[index], sizeof(*sgid));
+
+ return 0;
+}
+
+int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr)
+{
+ struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
+
+ memset(attr, 0, sizeof *attr);
+ memcpy(&attr->fw_ver, &dev->attr.fw_ver[0],
+ min(sizeof(dev->attr.fw_ver), sizeof(attr->fw_ver)));
+ ocrdma_get_guid(dev, (u8 *)&attr->sys_image_guid);
+ attr->max_mr_size = ~0ull;
+ attr->page_size_cap = 0xffff000;
+ attr->vendor_id = dev->nic_info.pdev->vendor;
+ attr->vendor_part_id = dev->nic_info.pdev->device;
+ attr->hw_ver = 0;
+ attr->max_qp = dev->attr.max_qp;
+ attr->max_ah = dev->attr.max_qp;
+ attr->max_qp_wr = dev->attr.max_wqe;
+
+ attr->device_cap_flags = IB_DEVICE_CURR_QP_STATE_MOD |
+ IB_DEVICE_RC_RNR_NAK_GEN |
+ IB_DEVICE_SHUTDOWN_PORT |
+ IB_DEVICE_SYS_IMAGE_GUID |
+ IB_DEVICE_LOCAL_DMA_LKEY;
+ attr->max_sge = dev->attr.max_send_sge;
+ attr->max_sge_rd = dev->attr.max_send_sge;
+ attr->max_cq = dev->attr.max_cq;
+ attr->max_cqe = dev->attr.max_cqe;
+ attr->max_mr = dev->attr.max_mr;
+ attr->max_mw = 0;
+ attr->max_pd = dev->attr.max_pd;
+ attr->atomic_cap = 0;
+ attr->max_fmr = 0;
+ attr->max_map_per_fmr = 0;
+ attr->max_qp_rd_atom =
+ min(dev->attr.max_ord_per_qp, dev->attr.max_ird_per_qp);
+ attr->max_qp_init_rd_atom = dev->attr.max_ord_per_qp;
+ attr->max_srq = (dev->attr.max_qp - 1);
+ attr->max_srq_sge = attr->max_sge;
+ attr->max_srq_wr = dev->attr.max_rqe;
+ attr->local_ca_ack_delay = dev->attr.local_ca_ack_delay;
+ attr->max_fast_reg_page_list_len = 0;
+ attr->max_pkeys = 1;
+ return 0;
+}
+
+int ocrdma_query_port(struct ib_device *ibdev,
+ u8 port, struct ib_port_attr *props)
+{
+ enum ib_port_state port_state;
+ struct ocrdma_dev *dev;
+ struct net_device *netdev;
+
+ dev = get_ocrdma_dev(ibdev);
+ if (port > 1) {
+ ocrdma_err("%s(%d) invalid_port=0x%x\n", __func__,
+ dev->id, port);
+ return -EINVAL;
+ }
+ netdev = dev->nic_info.netdev;
+ if (netif_running(netdev) && netif_oper_up(netdev)) {
+ port_state = IB_PORT_ACTIVE;
+ props->phys_state = 5;
+ } else {
+ port_state = IB_PORT_DOWN;
+ props->phys_state = 3;
+ }
+ props->max_mtu = IB_MTU_4096;
+ props->active_mtu = iboe_get_mtu(netdev->mtu);
+ props->lid = 0;
+ props->lmc = 0;
+ props->sm_lid = 0;
+ props->sm_sl = 0;
+ props->state = port_state;
+ props->port_cap_flags =
+ IB_PORT_CM_SUP |
+ IB_PORT_REINIT_SUP |
+ IB_PORT_DEVICE_MGMT_SUP | IB_PORT_VENDOR_CLASS_SUP;
+ props->gid_tbl_len = OCRDMA_MAX_SGID;
+ props->pkey_tbl_len = 1;
+ props->bad_pkey_cntr = 0;
+ props->qkey_viol_cntr = 0;
+ props->active_width = IB_WIDTH_1X;
+ props->active_speed = 4;
+ props->max_msg_sz = 0x80000000;
+ props->max_vl_num = 4;
+ return 0;
+}
+
+int ocrdma_modify_port(struct ib_device *ibdev, u8 port, int mask,
+ struct ib_port_modify *props)
+{
+ struct ocrdma_dev *dev;
+
+ dev = get_ocrdma_dev(ibdev);
+ if (port > 1) {
+ ocrdma_err("%s(%d) invalid_port=0x%x\n", __func__,
+ dev->id, port);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int ocrdma_add_mmap(struct ocrdma_ucontext *uctx, u64 phy_addr,
+ unsigned long len)
+{
+ struct ocrdma_mm *mm;
+
+ mm = kzalloc(sizeof(*mm), GFP_KERNEL);
+ if (mm == NULL)
+ return -ENOMEM;
+ mm->key.phy_addr = phy_addr;
+ mm->key.len = len;
+ INIT_LIST_HEAD(&mm->entry);
+
+ mutex_lock(&uctx->mm_list_lock);
+ list_add_tail(&mm->entry, &uctx->mm_head);
+ mutex_unlock(&uctx->mm_list_lock);
+ return 0;
+}
+
+static void ocrdma_del_mmap(struct ocrdma_ucontext *uctx, u64 phy_addr,
+ unsigned long len)
+{
+ struct ocrdma_mm *mm, *tmp;
+
+ mutex_lock(&uctx->mm_list_lock);
+ list_for_each_entry_safe(mm, tmp, &uctx->mm_head, entry) {
+ if (len != mm->key.len || phy_addr != mm->key.phy_addr)
+ continue;
+
+ list_del(&mm->entry);
+ kfree(mm);
+ break;
+ }
+ mutex_unlock(&uctx->mm_list_lock);
+}
+
+static bool ocrdma_search_mmap(struct ocrdma_ucontext *uctx, u64 phy_addr,
+ unsigned long len)
+{
+ bool found = false;
+ struct ocrdma_mm *mm;
+
+ mutex_lock(&uctx->mm_list_lock);
+ list_for_each_entry(mm, &uctx->mm_head, entry) {
+ if (len != mm->key.len || phy_addr != mm->key.phy_addr)
+ continue;
+
+ found = true;
+ break;
+ }
+ mutex_unlock(&uctx->mm_list_lock);
+ return found;
+}
+
+struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
+ struct ib_udata *udata)
+{
+ int status;
+ struct ocrdma_ucontext *ctx;
+ struct ocrdma_alloc_ucontext_resp resp;
+ struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ u32 map_len = roundup(sizeof(u32) * 2048, PAGE_SIZE);
+
+ if (!udata)
+ return ERR_PTR(-EFAULT);
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return ERR_PTR(-ENOMEM);
+ ctx->dev = dev;
+ INIT_LIST_HEAD(&ctx->mm_head);
+ mutex_init(&ctx->mm_list_lock);
+
+ ctx->ah_tbl.va = dma_alloc_coherent(&pdev->dev, map_len,
+ &ctx->ah_tbl.pa, GFP_KERNEL);
+ if (!ctx->ah_tbl.va) {
+ kfree(ctx);
+ return ERR_PTR(-ENOMEM);
+ }
+ memset(ctx->ah_tbl.va, 0, map_len);
+ ctx->ah_tbl.len = map_len;
+
+ resp.ah_tbl_len = ctx->ah_tbl.len;
+ resp.ah_tbl_page = ctx->ah_tbl.pa;
+
+ status = ocrdma_add_mmap(ctx, resp.ah_tbl_page, resp.ah_tbl_len);
+ if (status)
+ goto map_err;
+ resp.dev_id = dev->id;
+ resp.max_inline_data = dev->attr.max_inline_data;
+ resp.wqe_size = dev->attr.wqe_size;
+ resp.rqe_size = dev->attr.rqe_size;
+ resp.dpp_wqe_size = dev->attr.wqe_size;
+ resp.rsvd = 0;
+
+ memcpy(resp.fw_ver, dev->attr.fw_ver, sizeof(resp.fw_ver));
+ status = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ if (status)
+ goto cpy_err;
+ return &ctx->ibucontext;
+
+cpy_err:
+ ocrdma_del_mmap(ctx, ctx->ah_tbl.pa, ctx->ah_tbl.len);
+map_err:
+ dma_free_coherent(&pdev->dev, ctx->ah_tbl.len, ctx->ah_tbl.va,
+ ctx->ah_tbl.pa);
+ kfree(ctx);
+ return ERR_PTR(status);
+}
+
+int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
+{
+ struct ocrdma_mm *mm, *tmp;
+ struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ibctx);
+ struct pci_dev *pdev = uctx->dev->nic_info.pdev;
+
+ ocrdma_del_mmap(uctx, uctx->ah_tbl.pa, uctx->ah_tbl.len);
+ dma_free_coherent(&pdev->dev, uctx->ah_tbl.len, uctx->ah_tbl.va,
+ uctx->ah_tbl.pa);
+
+ list_for_each_entry_safe(mm, tmp, &uctx->mm_head, entry) {
+ list_del(&mm->entry);
+ kfree(mm);
+ }
+ kfree(uctx);
+ return 0;
+}
+
+int ocrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
+{
+ struct ocrdma_ucontext *ucontext = get_ocrdma_ucontext(context);
+ struct ocrdma_dev *dev = ucontext->dev;
+ unsigned long vm_page = vma->vm_pgoff << PAGE_SHIFT;
+ u64 unmapped_db = (u64) dev->nic_info.unmapped_db;
+ unsigned long len = (vma->vm_end - vma->vm_start);
+ int status = 0;
+ bool found;
+
+ if (vma->vm_start & (PAGE_SIZE - 1))
+ return -EINVAL;
+ found = ocrdma_search_mmap(ucontext, vma->vm_pgoff << PAGE_SHIFT, len);
+ if (!found)
+ return -EINVAL;
+
+ if ((vm_page >= unmapped_db) && (vm_page <= (unmapped_db +
+ dev->nic_info.db_total_size)) &&
+ (len <= dev->nic_info.db_page_size)) {
+ /* doorbell mapping */
+ status = io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+ len, vma->vm_page_prot);
+ } else if (dev->nic_info.dpp_unmapped_len &&
+ (vm_page >= (u64) dev->nic_info.dpp_unmapped_addr) &&
+ (vm_page <= (u64) (dev->nic_info.dpp_unmapped_addr +
+ dev->nic_info.dpp_unmapped_len)) &&
+ (len <= dev->nic_info.dpp_unmapped_len)) {
+ /* dpp area mapping */
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ status = io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+ len, vma->vm_page_prot);
+ } else {
+ /* queue memory mapping */
+ status = remap_pfn_range(vma, vma->vm_start,
+ vma->vm_pgoff, len, vma->vm_page_prot);
+ }
+ return status;
+}
+
+static int ocrdma_copy_pd_uresp(struct ocrdma_pd *pd,
+ struct ib_ucontext *ib_ctx,
+ struct ib_udata *udata)
+{
+ int status;
+ u64 db_page_addr;
+ u64 dpp_page_addr;
+ u32 db_page_size;
+ struct ocrdma_alloc_pd_uresp rsp;
+ struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ib_ctx);
+
+ rsp.id = pd->id;
+ rsp.dpp_enabled = pd->dpp_enabled;
+ db_page_addr = pd->dev->nic_info.unmapped_db +
+ (pd->id * pd->dev->nic_info.db_page_size);
+ db_page_size = pd->dev->nic_info.db_page_size;
+
+ status = ocrdma_add_mmap(uctx, db_page_addr, db_page_size);
+ if (status)
+ return status;
+
+ if (pd->dpp_enabled) {
+ dpp_page_addr = pd->dev->nic_info.dpp_unmapped_addr +
+ (pd->id * OCRDMA_DPP_PAGE_SIZE);
+ status = ocrdma_add_mmap(uctx, dpp_page_addr,
+ OCRDMA_DPP_PAGE_SIZE);
+ if (status)
+ goto dpp_map_err;
+ rsp.dpp_page_addr_hi = upper_32_bits(dpp_page_addr);
+ rsp.dpp_page_addr_lo = dpp_page_addr;
+ }
+
+ status = ib_copy_to_udata(udata, &rsp, sizeof(rsp));
+ if (status)
+ goto ucopy_err;
+
+ pd->uctx = uctx;
+ return 0;
+
+ucopy_err:
+ ocrdma_del_mmap(pd->uctx, dpp_page_addr, OCRDMA_DPP_PAGE_SIZE);
+dpp_map_err:
+ ocrdma_del_mmap(pd->uctx, db_page_addr, db_page_size);
+ return status;
+}
+
+struct ib_pd *ocrdma_alloc_pd(struct ib_device *ibdev,
+ struct ib_ucontext *context,
+ struct ib_udata *udata)
+{
+ struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
+ struct ocrdma_pd *pd;
+ int status;
+
+ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return ERR_PTR(-ENOMEM);
+ pd->dev = dev;
+ if (udata && context) {
+ pd->dpp_enabled = (dev->nic_info.dev_family ==
+ OCRDMA_GEN2_FAMILY) ? true : false;
+ pd->num_dpp_qp =
+ pd->dpp_enabled ? OCRDMA_PD_MAX_DPP_ENABLED_QP : 0;
+ }
+ status = ocrdma_mbx_alloc_pd(dev, pd);
+ if (status) {
+ kfree(pd);
+ return ERR_PTR(status);
+ }
+ atomic_set(&pd->use_cnt, 0);
+
+ if (udata && context) {
+ status = ocrdma_copy_pd_uresp(pd, context, udata);
+ if (status)
+ goto err;
+ }
+ return &pd->ibpd;
+
+err:
+ ocrdma_dealloc_pd(&pd->ibpd);
+ return ERR_PTR(status);
+}
+
+int ocrdma_dealloc_pd(struct ib_pd *ibpd)
+{
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_dev *dev = pd->dev;
+ int status;
+ u64 usr_db;
+
+ if (atomic_read(&pd->use_cnt)) {
+ ocrdma_err("%s(%d) pd=0x%x is in use.\n",
+ __func__, dev->id, pd->id);
+ status = -EFAULT;
+ goto dealloc_err;
+ }
+ status = ocrdma_mbx_dealloc_pd(dev, pd);
+ if (pd->uctx) {
+ u64 dpp_db = dev->nic_info.dpp_unmapped_addr +
+ (pd->id * OCRDMA_DPP_PAGE_SIZE);
+ if (pd->dpp_enabled)
+ ocrdma_del_mmap(pd->uctx, dpp_db, OCRDMA_DPP_PAGE_SIZE);
+ usr_db = dev->nic_info.unmapped_db +
+ (pd->id * dev->nic_info.db_page_size);
+ ocrdma_del_mmap(pd->uctx, usr_db, dev->nic_info.db_page_size);
+ }
+ kfree(pd);
+dealloc_err:
+ return status;
+}
+
+static struct ocrdma_mr *ocrdma_alloc_lkey(struct ib_pd *ibpd,
+ int acc, u32 num_pbls,
+ u32 addr_check)
+{
+ int status;
+ struct ocrdma_mr *mr;
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_dev *dev = pd->dev;
+
+ if (acc & IB_ACCESS_REMOTE_WRITE && !(acc & IB_ACCESS_LOCAL_WRITE)) {
+ ocrdma_err("%s(%d) leaving err, invalid access rights\n",
+ __func__, dev->id);
+ return ERR_PTR(-EINVAL);
+ }
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr)
+ return ERR_PTR(-ENOMEM);
+ mr->hwmr.dev = dev;
+ mr->hwmr.fr_mr = 0;
+ mr->hwmr.local_rd = 1;
+ mr->hwmr.remote_rd = (acc & IB_ACCESS_REMOTE_READ) ? 1 : 0;
+ mr->hwmr.remote_wr = (acc & IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
+ mr->hwmr.local_wr = (acc & IB_ACCESS_LOCAL_WRITE) ? 1 : 0;
+ mr->hwmr.mw_bind = (acc & IB_ACCESS_MW_BIND) ? 1 : 0;
+ mr->hwmr.remote_atomic = (acc & IB_ACCESS_REMOTE_ATOMIC) ? 1 : 0;
+ mr->hwmr.num_pbls = num_pbls;
+
+ status = ocrdma_mbx_alloc_lkey(dev, &mr->hwmr, pd->id, addr_check);
+ if (status) {
+ kfree(mr);
+ return ERR_PTR(-ENOMEM);
+ }
+ mr->pd = pd;
+ atomic_inc(&pd->use_cnt);
+ mr->ibmr.lkey = mr->hwmr.lkey;
+ if (mr->hwmr.remote_wr || mr->hwmr.remote_rd)
+ mr->ibmr.rkey = mr->hwmr.lkey;
+ return mr;
+}
+
+struct ib_mr *ocrdma_get_dma_mr(struct ib_pd *ibpd, int acc)
+{
+ struct ocrdma_mr *mr;
+
+ mr = ocrdma_alloc_lkey(ibpd, acc, 0, OCRDMA_ADDR_CHECK_DISABLE);
+ if (!mr)
+ return ERR_PTR(-ENOMEM);
+
+ return &mr->ibmr;
+}
+
+static void ocrdma_free_mr_pbl_tbl(struct ocrdma_dev *dev,
+ struct ocrdma_hw_mr *mr)
+{
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ int i = 0;
+
+ if (mr->pbl_table) {
+ for (i = 0; i < mr->num_pbls; i++) {
+ if (!mr->pbl_table[i].va)
+ continue;
+ dma_free_coherent(&pdev->dev, mr->pbl_size,
+ mr->pbl_table[i].va,
+ mr->pbl_table[i].pa);
+ }
+ kfree(mr->pbl_table);
+ mr->pbl_table = NULL;
+ }
+}
+
+static int ocrdma_get_pbl_info(struct ocrdma_mr *mr, u32 num_pbes)
+{
+ u32 num_pbls = 0;
+ u32 idx = 0;
+ int status = 0;
+ u32 pbl_size;
+
+ do {
+ pbl_size = OCRDMA_MIN_HPAGE_SIZE * (1 << idx);
+ if (pbl_size > MAX_OCRDMA_PBL_SIZE) {
+ status = -EFAULT;
+ break;
+ }
+ num_pbls = roundup(num_pbes, (pbl_size / sizeof(u64)));
+ num_pbls = num_pbls / (pbl_size / sizeof(u64));
+ idx++;
+ } while (num_pbls >= mr->hwmr.dev->attr.max_num_mr_pbl);
+
+ mr->hwmr.num_pbes = num_pbes;
+ mr->hwmr.num_pbls = num_pbls;
+ mr->hwmr.pbl_size = pbl_size;
+ return status;
+}
+
+static int ocrdma_build_pbl_tbl(struct ocrdma_dev *dev, struct ocrdma_hw_mr *mr)
+{
+ int status = 0;
+ int i;
+ u32 dma_len = mr->pbl_size;
+ struct pci_dev *pdev = dev->nic_info.pdev;
+ void *va;
+ dma_addr_t pa;
+
+ mr->pbl_table = kzalloc(sizeof(struct ocrdma_pbl) *
+ mr->num_pbls, GFP_KERNEL);
+
+ if (!mr->pbl_table)
+ return -ENOMEM;
+
+ for (i = 0; i < mr->num_pbls; i++) {
+ va = dma_alloc_coherent(&pdev->dev, dma_len, &pa, GFP_KERNEL);
+ if (!va) {
+ ocrdma_free_mr_pbl_tbl(dev, mr);
+ status = -ENOMEM;
+ break;
+ }
+ memset(va, 0, dma_len);
+ mr->pbl_table[i].va = va;
+ mr->pbl_table[i].pa = pa;
+ }
+ return status;
+}
+
+static void build_user_pbes(struct ocrdma_dev *dev, struct ocrdma_mr *mr,
+ u32 num_pbes)
+{
+ struct ocrdma_pbe *pbe;
+ struct ib_umem_chunk *chunk;
+ struct ocrdma_pbl *pbl_tbl = mr->hwmr.pbl_table;
+ struct ib_umem *umem = mr->umem;
+ int i, shift, pg_cnt, pages, pbe_cnt, total_num_pbes = 0;
+
+ if (!mr->hwmr.num_pbes)
+ return;
+
+ pbe = (struct ocrdma_pbe *)pbl_tbl->va;
+ pbe_cnt = 0;
+
+ shift = ilog2(umem->page_size);
+
+ list_for_each_entry(chunk, &umem->chunk_list, list) {
+ /* get all the dma regions from the chunk. */
+ for (i = 0; i < chunk->nmap; i++) {
+ pages = sg_dma_len(&chunk->page_list[i]) >> shift;
+ for (pg_cnt = 0; pg_cnt < pages; pg_cnt++) {
+ /* store the page address in pbe */
+ pbe->pa_lo =
+ cpu_to_le32(sg_dma_address
+ (&chunk->page_list[i]) +
+ (umem->page_size * pg_cnt));
+ pbe->pa_hi =
+ cpu_to_le32(upper_32_bits
+ ((sg_dma_address
+ (&chunk->page_list[i]) +
+ umem->page_size * pg_cnt)));
+ pbe_cnt += 1;
+ total_num_pbes += 1;
+ pbe++;
+
+ /* if done building pbes, issue the mbx cmd. */
+ if (total_num_pbes == num_pbes)
+ return;
+
+ /* if the given pbl is full storing the pbes,
+ * move to next pbl.
+ */
+ if (pbe_cnt ==
+ (mr->hwmr.pbl_size / sizeof(u64))) {
+ pbl_tbl++;
+ pbe = (struct ocrdma_pbe *)pbl_tbl->va;
+ pbe_cnt = 0;
+ }
+ }
+ }
+ }
+}
+
+struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
+ u64 usr_addr, int acc, struct ib_udata *udata)
+{
+ int status = -ENOMEM;
+ struct ocrdma_dev *dev;
+ struct ocrdma_mr *mr;
+ struct ocrdma_pd *pd;
+ struct pci_dev *pdev;
+ u32 num_pbes;
+
+ pd = get_ocrdma_pd(ibpd);
+ dev = pd->dev;
+ pdev = dev->nic_info.pdev;
+
+ if (acc & IB_ACCESS_REMOTE_WRITE && !(acc & IB_ACCESS_LOCAL_WRITE))
+ return ERR_PTR(-EINVAL);
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr)
+ return ERR_PTR(status);
+ mr->hwmr.dev = dev;
+ mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0);
+ if (IS_ERR(mr->umem)) {
+ status = -EFAULT;
+ goto umem_err;
+ }
+ num_pbes = ib_umem_page_count(mr->umem);
+ status = ocrdma_get_pbl_info(mr, num_pbes);
+ if (status)
+ goto umem_err;
+
+ mr->hwmr.pbe_size = mr->umem->page_size;
+ mr->hwmr.fbo = mr->umem->offset;
+ mr->hwmr.va = usr_addr;
+ mr->hwmr.len = len;
+ mr->hwmr.remote_wr = (acc & IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
+ mr->hwmr.remote_rd = (acc & IB_ACCESS_REMOTE_READ) ? 1 : 0;
+ mr->hwmr.local_wr = (acc & IB_ACCESS_LOCAL_WRITE) ? 1 : 0;
+ mr->hwmr.local_rd = 1;
+ mr->hwmr.remote_atomic = (acc & IB_ACCESS_REMOTE_ATOMIC) ? 1 : 0;
+ status = ocrdma_build_pbl_tbl(dev, &mr->hwmr);
+ if (status)
+ goto umem_err;
+ build_user_pbes(dev, mr, num_pbes);
+ status = ocrdma_reg_mr(dev, &mr->hwmr, pd->id, acc);
+ if (status)
+ goto mbx_err;
+ mr->pd = pd;
+ atomic_inc(&pd->use_cnt);
+ mr->ibmr.lkey = mr->hwmr.lkey;
+ if (mr->hwmr.remote_wr || mr->hwmr.remote_rd)
+ mr->ibmr.rkey = mr->hwmr.lkey;
+
+ return &mr->ibmr;
+
+mbx_err:
+ ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
+umem_err:
+ kfree(mr);
+ return ERR_PTR(status);
+}
+
+int ocrdma_dereg_mr(struct ib_mr *ib_mr)
+{
+ struct ocrdma_mr *mr = get_ocrdma_mr(ib_mr);
+ struct ocrdma_dev *dev = mr->hwmr.dev;
+ int status;
+
+ status = ocrdma_mbx_dealloc_lkey(dev, mr->hwmr.fr_mr, mr->hwmr.lkey);
+
+ if (mr->hwmr.fr_mr == 0)
+ ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
+
+ atomic_dec(&mr->pd->use_cnt);
+ /* it could be user registered memory. */
+ if (mr->umem)
+ ib_umem_release(mr->umem);
+ kfree(mr);
+ return status;
+}
+
+static int ocrdma_copy_cq_uresp(struct ocrdma_cq *cq, struct ib_udata *udata,
+ struct ib_ucontext *ib_ctx)
+{
+ int status;
+ struct ocrdma_ucontext *uctx;
+ struct ocrdma_create_cq_uresp uresp;
+
+ uresp.cq_id = cq->id;
+ uresp.page_size = cq->len;
+ uresp.num_pages = 1;
+ uresp.max_hw_cqe = cq->max_hw_cqe;
+ uresp.page_addr[0] = cq->pa;
+ uresp.db_page_addr = cq->dev->nic_info.unmapped_db;
+ uresp.db_page_size = cq->dev->nic_info.db_page_size;
+ uresp.phase_change = cq->phase_change ? 1 : 0;
+ status = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+ if (status) {
+ ocrdma_err("%s(%d) copy error cqid=0x%x.\n",
+ __func__, cq->dev->id, cq->id);
+ goto err;
+ }
+ uctx = get_ocrdma_ucontext(ib_ctx);
+ status = ocrdma_add_mmap(uctx, uresp.db_page_addr, uresp.db_page_size);
+ if (status)
+ goto err;
+ status = ocrdma_add_mmap(uctx, uresp.page_addr[0], uresp.page_size);
+ if (status) {
+ ocrdma_del_mmap(uctx, uresp.db_page_addr, uresp.db_page_size);
+ goto err;
+ }
+ cq->ucontext = uctx;
+err:
+ return status;
+}
+
+struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev, int entries, int vector,
+ struct ib_ucontext *ib_ctx,
+ struct ib_udata *udata)
+{
+ struct ocrdma_cq *cq;
+ struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
+ int status;
+ struct ocrdma_create_cq_ureq ureq;
+
+ if (udata) {
+ if (ib_copy_from_udata(&ureq, udata, sizeof(ureq)))
+ return ERR_PTR(-EFAULT);
+ } else
+ ureq.dpp_cq = 0;
+ cq = kzalloc(sizeof(*cq), GFP_KERNEL);
+ if (!cq)
+ return ERR_PTR(-ENOMEM);
+
+ spin_lock_init(&cq->cq_lock);
+ spin_lock_init(&cq->comp_handler_lock);
+ atomic_set(&cq->use_cnt, 0);
+ INIT_LIST_HEAD(&cq->sq_head);
+ INIT_LIST_HEAD(&cq->rq_head);
+ cq->dev = dev;
+
+ status = ocrdma_mbx_create_cq(dev, cq, entries, ureq.dpp_cq);
+ if (status) {
+ kfree(cq);
+ return ERR_PTR(status);
+ }
+ if (ib_ctx) {
+ status = ocrdma_copy_cq_uresp(cq, udata, ib_ctx);
+ if (status)
+ goto ctx_err;
+ }
+ cq->phase = OCRDMA_CQE_VALID;
+ cq->arm_needed = true;
+ dev->cq_tbl[cq->id] = cq;
+
+ return &cq->ibcq;
+
+ctx_err:
+ ocrdma_mbx_destroy_cq(dev, cq);
+ kfree(cq);
+ return ERR_PTR(status);
+}
+
+int ocrdma_resize_cq(struct ib_cq *ibcq, int new_cnt,
+ struct ib_udata *udata)
+{
+ int status = 0;
+ struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
+
+ if (new_cnt < 1 || new_cnt > cq->max_hw_cqe) {
+ status = -EINVAL;
+ return status;
+ }
+ ibcq->cqe = new_cnt;
+ return status;
+}
+
+int ocrdma_destroy_cq(struct ib_cq *ibcq)
+{
+ int status;
+ struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
+ struct ocrdma_dev *dev = cq->dev;
+
+ if (atomic_read(&cq->use_cnt))
+ return -EINVAL;
+
+ status = ocrdma_mbx_destroy_cq(dev, cq);
+
+ if (cq->ucontext) {
+ ocrdma_del_mmap(cq->ucontext, (u64) cq->pa, cq->len);
+ ocrdma_del_mmap(cq->ucontext, dev->nic_info.unmapped_db,
+ dev->nic_info.db_page_size);
+ }
+ dev->cq_tbl[cq->id] = NULL;
+
+ kfree(cq);
+ return status;
+}
+
+static int ocrdma_add_qpn_map(struct ocrdma_dev *dev, struct ocrdma_qp *qp)
+{
+ int status = -EINVAL;
+
+ if (qp->id < OCRDMA_MAX_QP && dev->qp_tbl[qp->id] == NULL) {
+ dev->qp_tbl[qp->id] = qp;
+ status = 0;
+ }
+ return status;
+}
+
+static void ocrdma_del_qpn_map(struct ocrdma_dev *dev, struct ocrdma_qp *qp)
+{
+ dev->qp_tbl[qp->id] = NULL;
+}
+
+static int ocrdma_check_qp_params(struct ib_pd *ibpd, struct ocrdma_dev *dev,
+ struct ib_qp_init_attr *attrs)
+{
+ if (attrs->qp_type != IB_QPT_GSI &&
+ attrs->qp_type != IB_QPT_RC &&
+ attrs->qp_type != IB_QPT_UD) {
+ ocrdma_err("%s(%d) unsupported qp type=0x%x requested\n",
+ __func__, dev->id, attrs->qp_type);
+ return -EINVAL;
+ }
+ if (attrs->cap.max_send_wr > dev->attr.max_wqe) {
+ ocrdma_err("%s(%d) unsupported send_wr=0x%x requested\n",
+ __func__, dev->id, attrs->cap.max_send_wr);
+ ocrdma_err("%s(%d) supported send_wr=0x%x\n",
+ __func__, dev->id, dev->attr.max_wqe);
+ return -EINVAL;
+ }
+ if (!attrs->srq && (attrs->cap.max_recv_wr > dev->attr.max_rqe)) {
+ ocrdma_err("%s(%d) unsupported recv_wr=0x%x requested\n",
+ __func__, dev->id, attrs->cap.max_recv_wr);
+ ocrdma_err("%s(%d) supported recv_wr=0x%x\n",
+ __func__, dev->id, dev->attr.max_rqe);
+ return -EINVAL;
+ }
+ if (attrs->cap.max_inline_data > dev->attr.max_inline_data) {
+ ocrdma_err("%s(%d) unsupported inline data size=0x%x"
+ " requested\n", __func__, dev->id,
+ attrs->cap.max_inline_data);
+ ocrdma_err("%s(%d) supported inline data size=0x%x\n",
+ __func__, dev->id, dev->attr.max_inline_data);
+ return -EINVAL;
+ }
+ if (attrs->cap.max_send_sge > dev->attr.max_send_sge) {
+ ocrdma_err("%s(%d) unsupported send_sge=0x%x requested\n",
+ __func__, dev->id, attrs->cap.max_send_sge);
+ ocrdma_err("%s(%d) supported send_sge=0x%x\n",
+ __func__, dev->id, dev->attr.max_send_sge);
+ return -EINVAL;
+ }
+ if (attrs->cap.max_recv_sge > dev->attr.max_recv_sge) {
+ ocrdma_err("%s(%d) unsupported recv_sge=0x%x requested\n",
+ __func__, dev->id, attrs->cap.max_recv_sge);
+ ocrdma_err("%s(%d) supported recv_sge=0x%x\n",
+ __func__, dev->id, dev->attr.max_recv_sge);
+ return -EINVAL;
+ }
+ /* unprivileged user space cannot create special QP */
+ if (ibpd->uobject && attrs->qp_type == IB_QPT_GSI) {
+ ocrdma_err
+ ("%s(%d) Userspace can't create special QPs of type=0x%x\n",
+ __func__, dev->id, attrs->qp_type);
+ return -EINVAL;
+ }
+ /* allow creating only one GSI type of QP */
+ if (attrs->qp_type == IB_QPT_GSI && dev->gsi_qp_created) {
+ ocrdma_err("%s(%d) GSI special QPs already created.\n",
+ __func__, dev->id);
+ return -EINVAL;
+ }
+ /* verify consumer QPs are not trying to use GSI QP's CQ */
+ if ((attrs->qp_type != IB_QPT_GSI) && (dev->gsi_qp_created)) {
+ if ((dev->gsi_sqcq == get_ocrdma_cq(attrs->send_cq)) ||
+ (dev->gsi_sqcq == get_ocrdma_cq(attrs->send_cq))) {
+ ocrdma_err("%s(%d) Consumer QP cannot use GSI CQs.\n",
+ __func__, dev->id);
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int ocrdma_copy_qp_uresp(struct ocrdma_qp *qp,
+ struct ib_udata *udata, int dpp_offset,
+ int dpp_credit_lmt, int srq)
+{
+ int status = 0;
+ u64 usr_db;
+ struct ocrdma_create_qp_uresp uresp;
+ struct ocrdma_dev *dev = qp->dev;
+ struct ocrdma_pd *pd = qp->pd;
+
+ memset(&uresp, 0, sizeof(uresp));
+ usr_db = dev->nic_info.unmapped_db +
+ (pd->id * dev->nic_info.db_page_size);
+ uresp.qp_id = qp->id;
+ uresp.sq_dbid = qp->sq.dbid;
+ uresp.num_sq_pages = 1;
+ uresp.sq_page_size = qp->sq.len;
+ uresp.sq_page_addr[0] = qp->sq.pa;
+ uresp.num_wqe_allocated = qp->sq.max_cnt;
+ if (!srq) {
+ uresp.rq_dbid = qp->rq.dbid;
+ uresp.num_rq_pages = 1;
+ uresp.rq_page_size = qp->rq.len;
+ uresp.rq_page_addr[0] = qp->rq.pa;
+ uresp.num_rqe_allocated = qp->rq.max_cnt;
+ }
+ uresp.db_page_addr = usr_db;
+ uresp.db_page_size = dev->nic_info.db_page_size;
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ uresp.db_sq_offset = OCRDMA_DB_GEN2_SQ_OFFSET;
+ uresp.db_rq_offset = ((qp->id & 0xFFFF) < 128) ?
+ OCRDMA_DB_GEN2_RQ1_OFFSET : OCRDMA_DB_GEN2_RQ2_OFFSET;
+ uresp.db_shift = (qp->id < 128) ? 24 : 16;
+ } else {
+ uresp.db_sq_offset = OCRDMA_DB_SQ_OFFSET;
+ uresp.db_rq_offset = OCRDMA_DB_RQ_OFFSET;
+ uresp.db_shift = 16;
+ }
+ uresp.free_wqe_delta = qp->sq.free_delta;
+ uresp.free_rqe_delta = qp->rq.free_delta;
+
+ if (qp->dpp_enabled) {
+ uresp.dpp_credit = dpp_credit_lmt;
+ uresp.dpp_offset = dpp_offset;
+ }
+ status = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+ if (status) {
+ ocrdma_err("%s(%d) user copy error.\n", __func__, dev->id);
+ goto err;
+ }
+ status = ocrdma_add_mmap(pd->uctx, uresp.sq_page_addr[0],
+ uresp.sq_page_size);
+ if (status)
+ goto err;
+
+ if (!srq) {
+ status = ocrdma_add_mmap(pd->uctx, uresp.rq_page_addr[0],
+ uresp.rq_page_size);
+ if (status)
+ goto rq_map_err;
+ }
+ return status;
+rq_map_err:
+ ocrdma_del_mmap(pd->uctx, uresp.sq_page_addr[0], uresp.sq_page_size);
+err:
+ return status;
+}
+
+static void ocrdma_set_qp_db(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
+ struct ocrdma_pd *pd)
+{
+ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ qp->sq_db = dev->nic_info.db +
+ (pd->id * dev->nic_info.db_page_size) +
+ OCRDMA_DB_GEN2_SQ_OFFSET;
+ qp->rq_db = dev->nic_info.db +
+ (pd->id * dev->nic_info.db_page_size) +
+ ((qp->id < 128) ?
+ OCRDMA_DB_GEN2_RQ1_OFFSET : OCRDMA_DB_GEN2_RQ2_OFFSET);
+ } else {
+ qp->sq_db = dev->nic_info.db +
+ (pd->id * dev->nic_info.db_page_size) +
+ OCRDMA_DB_SQ_OFFSET;
+ qp->rq_db = dev->nic_info.db +
+ (pd->id * dev->nic_info.db_page_size) +
+ OCRDMA_DB_RQ_OFFSET;
+ }
+}
+
+static int ocrdma_alloc_wr_id_tbl(struct ocrdma_qp *qp)
+{
+ qp->wqe_wr_id_tbl =
+ kzalloc(sizeof(*(qp->wqe_wr_id_tbl)) * qp->sq.max_cnt,
+ GFP_KERNEL);
+ if (qp->wqe_wr_id_tbl == NULL)
+ return -ENOMEM;
+ qp->rqe_wr_id_tbl =
+ kzalloc(sizeof(u64) * qp->rq.max_cnt, GFP_KERNEL);
+ if (qp->rqe_wr_id_tbl == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void ocrdma_set_qp_init_params(struct ocrdma_qp *qp,
+ struct ocrdma_pd *pd,
+ struct ib_qp_init_attr *attrs)
+{
+ qp->pd = pd;
+ spin_lock_init(&qp->q_lock);
+ INIT_LIST_HEAD(&qp->sq_entry);
+ INIT_LIST_HEAD(&qp->rq_entry);
+
+ qp->qp_type = attrs->qp_type;
+ qp->cap_flags = OCRDMA_QP_INB_RD | OCRDMA_QP_INB_WR;
+ qp->max_inline_data = attrs->cap.max_inline_data;
+ qp->sq.max_sges = attrs->cap.max_send_sge;
+ qp->rq.max_sges = attrs->cap.max_recv_sge;
+ qp->state = OCRDMA_QPS_RST;
+}
+
+static void ocrdma_set_qp_use_cnt(struct ocrdma_qp *qp, struct ocrdma_pd *pd)
+{
+ atomic_inc(&pd->use_cnt);
+ atomic_inc(&qp->sq_cq->use_cnt);
+ atomic_inc(&qp->rq_cq->use_cnt);
+ if (qp->srq)
+ atomic_inc(&qp->srq->use_cnt);
+ qp->ibqp.qp_num = qp->id;
+}
+
+static void ocrdma_store_gsi_qp_cq(struct ocrdma_dev *dev,
+ struct ib_qp_init_attr *attrs)
+{
+ if (attrs->qp_type == IB_QPT_GSI) {
+ dev->gsi_qp_created = 1;
+ dev->gsi_sqcq = get_ocrdma_cq(attrs->send_cq);
+ dev->gsi_rqcq = get_ocrdma_cq(attrs->recv_cq);
+ }
+}
+
+struct ib_qp *ocrdma_create_qp(struct ib_pd *ibpd,
+ struct ib_qp_init_attr *attrs,
+ struct ib_udata *udata)
+{
+ int status;
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_qp *qp;
+ struct ocrdma_dev *dev = pd->dev;
+ struct ocrdma_create_qp_ureq ureq;
+ u16 dpp_credit_lmt, dpp_offset;
+
+ status = ocrdma_check_qp_params(ibpd, dev, attrs);
+ if (status)
+ goto gen_err;
+
+ memset(&ureq, 0, sizeof(ureq));
+ if (udata) {
+ if (ib_copy_from_udata(&ureq, udata, sizeof(ureq)))
+ return ERR_PTR(-EFAULT);
+ }
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
+ if (!qp) {
+ status = -ENOMEM;
+ goto gen_err;
+ }
+ qp->dev = dev;
+ ocrdma_set_qp_init_params(qp, pd, attrs);
+
+ mutex_lock(&dev->dev_lock);
+ status = ocrdma_mbx_create_qp(qp, attrs, ureq.enable_dpp_cq,
+ ureq.dpp_cq_id,
+ &dpp_offset, &dpp_credit_lmt);
+ if (status)
+ goto mbx_err;
+
+ /* user space QP's wr_id table are managed in library */
+ if (udata == NULL) {
+ qp->cap_flags |= (OCRDMA_QP_MW_BIND | OCRDMA_QP_LKEY0 |
+ OCRDMA_QP_FAST_REG);
+ status = ocrdma_alloc_wr_id_tbl(qp);
+ if (status)
+ goto map_err;
+ }
+
+ status = ocrdma_add_qpn_map(dev, qp);
+ if (status)
+ goto map_err;
+ ocrdma_set_qp_db(dev, qp, pd);
+ if (udata) {
+ status = ocrdma_copy_qp_uresp(qp, udata, dpp_offset,
+ dpp_credit_lmt,
+ (attrs->srq != NULL));
+ if (status)
+ goto cpy_err;
+ }
+ ocrdma_store_gsi_qp_cq(dev, attrs);
+ ocrdma_set_qp_use_cnt(qp, pd);
+ mutex_unlock(&dev->dev_lock);
+ return &qp->ibqp;
+
+cpy_err:
+ ocrdma_del_qpn_map(dev, qp);
+map_err:
+ ocrdma_mbx_destroy_qp(dev, qp);
+mbx_err:
+ mutex_unlock(&dev->dev_lock);
+ kfree(qp->wqe_wr_id_tbl);
+ kfree(qp->rqe_wr_id_tbl);
+ kfree(qp);
+ ocrdma_err("%s(%d) error=%d\n", __func__, dev->id, status);
+gen_err:
+ return ERR_PTR(status);
+}
+
+int _ocrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask)
+{
+ int status = 0;
+ struct ocrdma_qp *qp;
+ struct ocrdma_dev *dev;
+ enum ib_qp_state old_qps;
+
+ qp = get_ocrdma_qp(ibqp);
+ dev = qp->dev;
+ if (attr_mask & IB_QP_STATE)
+ status = ocrdma_qp_state_machine(qp, attr->qp_state, &old_qps);
+ /* if new and previous states are same hw doesn't need to
+ * know about it.
+ */
+ if (status < 0)
+ return status;
+ status = ocrdma_mbx_modify_qp(dev, qp, attr, attr_mask, old_qps);
+ return status;
+}
+
+int ocrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_udata *udata)
+{
+ unsigned long flags;
+ int status = -EINVAL;
+ struct ocrdma_qp *qp;
+ struct ocrdma_dev *dev;
+ enum ib_qp_state old_qps, new_qps;
+
+ qp = get_ocrdma_qp(ibqp);
+ dev = qp->dev;
+
+ /* syncronize with multiple context trying to change, retrive qps */
+ mutex_lock(&dev->dev_lock);
+ /* syncronize with wqe, rqe posting and cqe processing contexts */
+ spin_lock_irqsave(&qp->q_lock, flags);
+ old_qps = get_ibqp_state(qp->state);
+ if (attr_mask & IB_QP_STATE)
+ new_qps = attr->qp_state;
+ else
+ new_qps = old_qps;
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+
+ if (!ib_modify_qp_is_ok(old_qps, new_qps, ibqp->qp_type, attr_mask)) {
+ ocrdma_err("%s(%d) invalid attribute mask=0x%x specified for "
+ "qpn=0x%x of type=0x%x old_qps=0x%x, new_qps=0x%x\n",
+ __func__, dev->id, attr_mask, qp->id, ibqp->qp_type,
+ old_qps, new_qps);
+ goto param_err;
+ }
+
+ status = _ocrdma_modify_qp(ibqp, attr, attr_mask);
+ if (status > 0)
+ status = 0;
+param_err:
+ mutex_unlock(&dev->dev_lock);
+ return status;
+}
+
+static enum ib_mtu ocrdma_mtu_int_to_enum(u16 mtu)
+{
+ switch (mtu) {
+ case 256:
+ return IB_MTU_256;
+ case 512:
+ return IB_MTU_512;
+ case 1024:
+ return IB_MTU_1024;
+ case 2048:
+ return IB_MTU_2048;
+ case 4096:
+ return IB_MTU_4096;
+ default:
+ return IB_MTU_1024;
+ }
+}
+
+static int ocrdma_to_ib_qp_acc_flags(int qp_cap_flags)
+{
+ int ib_qp_acc_flags = 0;
+
+ if (qp_cap_flags & OCRDMA_QP_INB_WR)
+ ib_qp_acc_flags |= IB_ACCESS_REMOTE_WRITE;
+ if (qp_cap_flags & OCRDMA_QP_INB_RD)
+ ib_qp_acc_flags |= IB_ACCESS_LOCAL_WRITE;
+ return ib_qp_acc_flags;
+}
+
+int ocrdma_query_qp(struct ib_qp *ibqp,
+ struct ib_qp_attr *qp_attr,
+ int attr_mask, struct ib_qp_init_attr *qp_init_attr)
+{
+ int status;
+ u32 qp_state;
+ struct ocrdma_qp_params params;
+ struct ocrdma_qp *qp = get_ocrdma_qp(ibqp);
+ struct ocrdma_dev *dev = qp->dev;
+
+ memset(&params, 0, sizeof(params));
+ mutex_lock(&dev->dev_lock);
+ status = ocrdma_mbx_query_qp(dev, qp, &params);
+ mutex_unlock(&dev->dev_lock);
+ if (status)
+ goto mbx_err;
+ qp_attr->qp_state = get_ibqp_state(IB_QPS_INIT);
+ qp_attr->cur_qp_state = get_ibqp_state(IB_QPS_INIT);
+ qp_attr->path_mtu =
+ ocrdma_mtu_int_to_enum(params.path_mtu_pkey_indx &
+ OCRDMA_QP_PARAMS_PATH_MTU_MASK) >>
+ OCRDMA_QP_PARAMS_PATH_MTU_SHIFT;
+ qp_attr->path_mig_state = IB_MIG_MIGRATED;
+ qp_attr->rq_psn = params.hop_lmt_rq_psn & OCRDMA_QP_PARAMS_RQ_PSN_MASK;
+ qp_attr->sq_psn = params.tclass_sq_psn & OCRDMA_QP_PARAMS_SQ_PSN_MASK;
+ qp_attr->dest_qp_num =
+ params.ack_to_rnr_rtc_dest_qpn & OCRDMA_QP_PARAMS_DEST_QPN_MASK;
+
+ qp_attr->qp_access_flags = ocrdma_to_ib_qp_acc_flags(qp->cap_flags);
+ qp_attr->cap.max_send_wr = qp->sq.max_cnt - 1;
+ qp_attr->cap.max_recv_wr = qp->rq.max_cnt - 1;
+ qp_attr->cap.max_send_sge = qp->sq.max_sges;
+ qp_attr->cap.max_recv_sge = qp->rq.max_sges;
+ qp_attr->cap.max_inline_data = dev->attr.max_inline_data;
+ qp_init_attr->cap = qp_attr->cap;
+ memcpy(&qp_attr->ah_attr.grh.dgid, &params.dgid[0],
+ sizeof(params.dgid));
+ qp_attr->ah_attr.grh.flow_label = params.rnt_rc_sl_fl &
+ OCRDMA_QP_PARAMS_FLOW_LABEL_MASK;
+ qp_attr->ah_attr.grh.sgid_index = qp->sgid_idx;
+ qp_attr->ah_attr.grh.hop_limit = (params.hop_lmt_rq_psn &
+ OCRDMA_QP_PARAMS_HOP_LMT_MASK) >>
+ OCRDMA_QP_PARAMS_HOP_LMT_SHIFT;
+ qp_attr->ah_attr.grh.traffic_class = (params.tclass_sq_psn &
+ OCRDMA_QP_PARAMS_SQ_PSN_MASK) >>
+ OCRDMA_QP_PARAMS_TCLASS_SHIFT;
+
+ qp_attr->ah_attr.ah_flags = IB_AH_GRH;
+ qp_attr->ah_attr.port_num = 1;
+ qp_attr->ah_attr.sl = (params.rnt_rc_sl_fl &
+ OCRDMA_QP_PARAMS_SL_MASK) >>
+ OCRDMA_QP_PARAMS_SL_SHIFT;
+ qp_attr->timeout = (params.ack_to_rnr_rtc_dest_qpn &
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_MASK) >>
+ OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT;
+ qp_attr->rnr_retry = (params.ack_to_rnr_rtc_dest_qpn &
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK) >>
+ OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT;
+ qp_attr->retry_cnt =
+ (params.rnt_rc_sl_fl & OCRDMA_QP_PARAMS_RETRY_CNT_MASK) >>
+ OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT;
+ qp_attr->min_rnr_timer = 0;
+ qp_attr->pkey_index = 0;
+ qp_attr->port_num = 1;
+ qp_attr->ah_attr.src_path_bits = 0;
+ qp_attr->ah_attr.static_rate = 0;
+ qp_attr->alt_pkey_index = 0;
+ qp_attr->alt_port_num = 0;
+ qp_attr->alt_timeout = 0;
+ memset(&qp_attr->alt_ah_attr, 0, sizeof(qp_attr->alt_ah_attr));
+ qp_state = (params.max_sge_recv_flags & OCRDMA_QP_PARAMS_STATE_MASK) >>
+ OCRDMA_QP_PARAMS_STATE_SHIFT;
+ qp_attr->sq_draining = (qp_state == OCRDMA_QPS_SQ_DRAINING) ? 1 : 0;
+ qp_attr->max_dest_rd_atomic =
+ params.max_ord_ird >> OCRDMA_QP_PARAMS_MAX_ORD_SHIFT;
+ qp_attr->max_rd_atomic =
+ params.max_ord_ird & OCRDMA_QP_PARAMS_MAX_IRD_MASK;
+ qp_attr->en_sqd_async_notify = (params.max_sge_recv_flags &
+ OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC) ? 1 : 0;
+mbx_err:
+ return status;
+}
+
+static void ocrdma_srq_toggle_bit(struct ocrdma_srq *srq, int idx)
+{
+ int i = idx / 32;
+ unsigned int mask = (1 << (idx % 32));
+
+ if (srq->idx_bit_fields[i] & mask)
+ srq->idx_bit_fields[i] &= ~mask;
+ else
+ srq->idx_bit_fields[i] |= mask;
+}
+
+static int ocrdma_hwq_free_cnt(struct ocrdma_qp_hwq_info *q)
+{
+ int free_cnt;
+ if (q->head >= q->tail)
+ free_cnt = (q->max_cnt - q->head) + q->tail;
+ else
+ free_cnt = q->tail - q->head;
+ if (q->free_delta)
+ free_cnt -= q->free_delta;
+ return free_cnt;
+}
+
+static int is_hw_sq_empty(struct ocrdma_qp *qp)
+{
+ return (qp->sq.tail == qp->sq.head &&
+ ocrdma_hwq_free_cnt(&qp->sq) ? 1 : 0);
+}
+
+static int is_hw_rq_empty(struct ocrdma_qp *qp)
+{
+ return (qp->rq.tail == qp->rq.head) ? 1 : 0;
+}
+
+static void *ocrdma_hwq_head(struct ocrdma_qp_hwq_info *q)
+{
+ return q->va + (q->head * q->entry_size);
+}
+
+static void *ocrdma_hwq_head_from_idx(struct ocrdma_qp_hwq_info *q,
+ u32 idx)
+{
+ return q->va + (idx * q->entry_size);
+}
+
+static void ocrdma_hwq_inc_head(struct ocrdma_qp_hwq_info *q)
+{
+ q->head = (q->head + 1) & q->max_wqe_idx;
+}
+
+static void ocrdma_hwq_inc_tail(struct ocrdma_qp_hwq_info *q)
+{
+ q->tail = (q->tail + 1) & q->max_wqe_idx;
+}
+
+/* discard the cqe for a given QP */
+static void ocrdma_discard_cqes(struct ocrdma_qp *qp, struct ocrdma_cq *cq)
+{
+ unsigned long cq_flags;
+ unsigned long flags;
+ int discard_cnt = 0;
+ u32 cur_getp, stop_getp;
+ struct ocrdma_cqe *cqe;
+ u32 qpn = 0;
+
+ spin_lock_irqsave(&cq->cq_lock, cq_flags);
+
+ /* traverse through the CQEs in the hw CQ,
+ * find the matching CQE for a given qp,
+ * mark the matching one discarded by clearing qpn.
+ * ring the doorbell in the poll_cq() as
+ * we don't complete out of order cqe.
+ */
+
+ cur_getp = cq->getp;
+ /* find upto when do we reap the cq. */
+ stop_getp = cur_getp;
+ do {
+ if (is_hw_sq_empty(qp) && (!qp->srq && is_hw_rq_empty(qp)))
+ break;
+
+ cqe = cq->va + cur_getp;
+ /* if (a) done reaping whole hw cq, or
+ * (b) qp_xq becomes empty.
+ * then exit
+ */
+ qpn = cqe->cmn.qpn & OCRDMA_CQE_QPN_MASK;
+ /* if previously discarded cqe found, skip that too. */
+ /* check for matching qp */
+ if (qpn == 0 || qpn != qp->id)
+ goto skip_cqe;
+
+ /* mark cqe discarded so that it is not picked up later
+ * in the poll_cq().
+ */
+ discard_cnt += 1;
+ cqe->cmn.qpn = 0;
+ if (is_cqe_for_sq(cqe))
+ ocrdma_hwq_inc_tail(&qp->sq);
+ else {
+ if (qp->srq) {
+ spin_lock_irqsave(&qp->srq->q_lock, flags);
+ ocrdma_hwq_inc_tail(&qp->srq->rq);
+ ocrdma_srq_toggle_bit(qp->srq, cur_getp);
+ spin_unlock_irqrestore(&qp->srq->q_lock, flags);
+
+ } else
+ ocrdma_hwq_inc_tail(&qp->rq);
+ }
+skip_cqe:
+ cur_getp = (cur_getp + 1) % cq->max_hw_cqe;
+ } while (cur_getp != stop_getp);
+ spin_unlock_irqrestore(&cq->cq_lock, cq_flags);
+}
+
+static void ocrdma_del_flush_qp(struct ocrdma_qp *qp)
+{
+ int found = false;
+ unsigned long flags;
+ struct ocrdma_dev *dev = qp->dev;
+ /* sync with any active CQ poll */
+
+ spin_lock_irqsave(&dev->flush_q_lock, flags);
+ found = ocrdma_is_qp_in_sq_flushlist(qp->sq_cq, qp);
+ if (found)
+ list_del(&qp->sq_entry);
+ if (!qp->srq) {
+ found = ocrdma_is_qp_in_rq_flushlist(qp->rq_cq, qp);
+ if (found)
+ list_del(&qp->rq_entry);
+ }
+ spin_unlock_irqrestore(&dev->flush_q_lock, flags);
+}
+
+int ocrdma_destroy_qp(struct ib_qp *ibqp)
+{
+ int status;
+ struct ocrdma_pd *pd;
+ struct ocrdma_qp *qp;
+ struct ocrdma_dev *dev;
+ struct ib_qp_attr attrs;
+ int attr_mask = IB_QP_STATE;
+ unsigned long wq_flags = 0, rq_flags = 0;
+
+ qp = get_ocrdma_qp(ibqp);
+ dev = qp->dev;
+
+ attrs.qp_state = IB_QPS_ERR;
+ pd = qp->pd;
+
+ /* change the QP state to ERROR */
+ _ocrdma_modify_qp(ibqp, &attrs, attr_mask);
+
+ /* ensure that CQEs for newly created QP (whose id may be same with
+ * one which just getting destroyed are same), dont get
+ * discarded until the old CQEs are discarded.
+ */
+ mutex_lock(&dev->dev_lock);
+ status = ocrdma_mbx_destroy_qp(dev, qp);
+
+ /*
+ * acquire CQ lock while destroy is in progress, in order to
+ * protect against proessing in-flight CQEs for this QP.
+ */
+ spin_lock_irqsave(&qp->sq_cq->cq_lock, wq_flags);
+ if (qp->rq_cq && (qp->rq_cq != qp->sq_cq))
+ spin_lock_irqsave(&qp->rq_cq->cq_lock, rq_flags);
+
+ ocrdma_del_qpn_map(dev, qp);
+
+ if (qp->rq_cq && (qp->rq_cq != qp->sq_cq))
+ spin_unlock_irqrestore(&qp->rq_cq->cq_lock, rq_flags);
+ spin_unlock_irqrestore(&qp->sq_cq->cq_lock, wq_flags);
+
+ if (!pd->uctx) {
+ ocrdma_discard_cqes(qp, qp->sq_cq);
+ ocrdma_discard_cqes(qp, qp->rq_cq);
+ }
+ mutex_unlock(&dev->dev_lock);
+
+ if (pd->uctx) {
+ ocrdma_del_mmap(pd->uctx, (u64) qp->sq.pa, qp->sq.len);
+ if (!qp->srq)
+ ocrdma_del_mmap(pd->uctx, (u64) qp->rq.pa, qp->rq.len);
+ }
+
+ ocrdma_del_flush_qp(qp);
+
+ atomic_dec(&qp->pd->use_cnt);
+ atomic_dec(&qp->sq_cq->use_cnt);
+ atomic_dec(&qp->rq_cq->use_cnt);
+ if (qp->srq)
+ atomic_dec(&qp->srq->use_cnt);
+ kfree(qp->wqe_wr_id_tbl);
+ kfree(qp->rqe_wr_id_tbl);
+ kfree(qp);
+ return status;
+}
+
+static int ocrdma_copy_srq_uresp(struct ocrdma_srq *srq, struct ib_udata *udata)
+{
+ int status;
+ struct ocrdma_create_srq_uresp uresp;
+
+ uresp.rq_dbid = srq->rq.dbid;
+ uresp.num_rq_pages = 1;
+ uresp.rq_page_addr[0] = srq->rq.pa;
+ uresp.rq_page_size = srq->rq.len;
+ uresp.db_page_addr = srq->dev->nic_info.unmapped_db +
+ (srq->pd->id * srq->dev->nic_info.db_page_size);
+ uresp.db_page_size = srq->dev->nic_info.db_page_size;
+ uresp.num_rqe_allocated = srq->rq.max_cnt;
+ uresp.free_rqe_delta = 1;
+ if (srq->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+ uresp.db_rq_offset = OCRDMA_DB_GEN2_RQ1_OFFSET;
+ uresp.db_shift = 24;
+ } else {
+ uresp.db_rq_offset = OCRDMA_DB_RQ_OFFSET;
+ uresp.db_shift = 16;
+ }
+
+ status = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+ if (status)
+ return status;
+ status = ocrdma_add_mmap(srq->pd->uctx, uresp.rq_page_addr[0],
+ uresp.rq_page_size);
+ if (status)
+ return status;
+ return status;
+}
+
+struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
+ struct ib_srq_init_attr *init_attr,
+ struct ib_udata *udata)
+{
+ int status = -ENOMEM;
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_dev *dev = pd->dev;
+ struct ocrdma_srq *srq;
+
+ if (init_attr->attr.max_sge > dev->attr.max_recv_sge)
+ return ERR_PTR(-EINVAL);
+ if (init_attr->attr.max_wr > dev->attr.max_rqe)
+ return ERR_PTR(-EINVAL);
+
+ srq = kzalloc(sizeof(*srq), GFP_KERNEL);
+ if (!srq)
+ return ERR_PTR(status);
+
+ spin_lock_init(&srq->q_lock);
+ srq->dev = dev;
+ srq->pd = pd;
+ srq->db = dev->nic_info.db + (pd->id * dev->nic_info.db_page_size);
+ status = ocrdma_mbx_create_srq(srq, init_attr, pd);
+ if (status)
+ goto err;
+
+ if (udata == NULL) {
+ srq->rqe_wr_id_tbl = kzalloc(sizeof(u64) * srq->rq.max_cnt,
+ GFP_KERNEL);
+ if (srq->rqe_wr_id_tbl == NULL)
+ goto arm_err;
+
+ srq->bit_fields_len = (srq->rq.max_cnt / 32) +
+ (srq->rq.max_cnt % 32 ? 1 : 0);
+ srq->idx_bit_fields =
+ kmalloc(srq->bit_fields_len * sizeof(u32), GFP_KERNEL);
+ if (srq->idx_bit_fields == NULL)
+ goto arm_err;
+ memset(srq->idx_bit_fields, 0xff,
+ srq->bit_fields_len * sizeof(u32));
+ }
+
+ if (init_attr->attr.srq_limit) {
+ status = ocrdma_mbx_modify_srq(srq, &init_attr->attr);
+ if (status)
+ goto arm_err;
+ }
+
+ atomic_set(&srq->use_cnt, 0);
+ if (udata) {
+ status = ocrdma_copy_srq_uresp(srq, udata);
+ if (status)
+ goto arm_err;
+ }
+
+ atomic_inc(&pd->use_cnt);
+ return &srq->ibsrq;
+
+arm_err:
+ ocrdma_mbx_destroy_srq(dev, srq);
+err:
+ kfree(srq->rqe_wr_id_tbl);
+ kfree(srq->idx_bit_fields);
+ kfree(srq);
+ return ERR_PTR(status);
+}
+
+int ocrdma_modify_srq(struct ib_srq *ibsrq,
+ struct ib_srq_attr *srq_attr,
+ enum ib_srq_attr_mask srq_attr_mask,
+ struct ib_udata *udata)
+{
+ int status = 0;
+ struct ocrdma_srq *srq;
+ struct ocrdma_dev *dev;
+
+ srq = get_ocrdma_srq(ibsrq);
+ dev = srq->dev;
+ if (srq_attr_mask & IB_SRQ_MAX_WR)
+ status = -EINVAL;
+ else
+ status = ocrdma_mbx_modify_srq(srq, srq_attr);
+ return status;
+}
+
+int ocrdma_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
+{
+ int status;
+ struct ocrdma_srq *srq;
+ struct ocrdma_dev *dev;
+
+ srq = get_ocrdma_srq(ibsrq);
+ dev = srq->dev;
+ status = ocrdma_mbx_query_srq(srq, srq_attr);
+ return status;
+}
+
+int ocrdma_destroy_srq(struct ib_srq *ibsrq)
+{
+ int status;
+ struct ocrdma_srq *srq;
+ struct ocrdma_dev *dev;
+
+ srq = get_ocrdma_srq(ibsrq);
+ dev = srq->dev;
+ if (atomic_read(&srq->use_cnt)) {
+ ocrdma_err("%s(%d) err, srq=0x%x in use\n",
+ __func__, dev->id, srq->id);
+ return -EAGAIN;
+ }
+
+ status = ocrdma_mbx_destroy_srq(dev, srq);
+
+ if (srq->pd->uctx)
+ ocrdma_del_mmap(srq->pd->uctx, (u64) srq->rq.pa, srq->rq.len);
+
+ atomic_dec(&srq->pd->use_cnt);
+ kfree(srq->idx_bit_fields);
+ kfree(srq->rqe_wr_id_tbl);
+ kfree(srq);
+ return status;
+}
+
+/* unprivileged verbs and their support functions. */
+static void ocrdma_build_ud_hdr(struct ocrdma_qp *qp,
+ struct ocrdma_hdr_wqe *hdr,
+ struct ib_send_wr *wr)
+{
+ struct ocrdma_ewqe_ud_hdr *ud_hdr =
+ (struct ocrdma_ewqe_ud_hdr *)(hdr + 1);
+ struct ocrdma_ah *ah = get_ocrdma_ah(wr->wr.ud.ah);
+
+ ud_hdr->rsvd_dest_qpn = wr->wr.ud.remote_qpn;
+ if (qp->qp_type == IB_QPT_GSI)
+ ud_hdr->qkey = qp->qkey;
+ else
+ ud_hdr->qkey = wr->wr.ud.remote_qkey;
+ ud_hdr->rsvd_ahid = ah->id;
+}
+
+static void ocrdma_build_sges(struct ocrdma_hdr_wqe *hdr,
+ struct ocrdma_sge *sge, int num_sge,
+ struct ib_sge *sg_list)
+{
+ int i;
+
+ for (i = 0; i < num_sge; i++) {
+ sge[i].lrkey = sg_list[i].lkey;
+ sge[i].addr_lo = sg_list[i].addr;
+ sge[i].addr_hi = upper_32_bits(sg_list[i].addr);
+ sge[i].len = sg_list[i].length;
+ hdr->total_len += sg_list[i].length;
+ }
+ if (num_sge == 0)
+ memset(sge, 0, sizeof(*sge));
+}
+
+static int ocrdma_build_inline_sges(struct ocrdma_qp *qp,
+ struct ocrdma_hdr_wqe *hdr,
+ struct ocrdma_sge *sge,
+ struct ib_send_wr *wr, u32 wqe_size)
+{
+ if (wr->send_flags & IB_SEND_INLINE) {
+ if (wr->sg_list[0].length > qp->max_inline_data) {
+ ocrdma_err("%s() supported_len=0x%x,"
+ " unspported len req=0x%x\n", __func__,
+ qp->max_inline_data, wr->sg_list[0].length);
+ return -EINVAL;
+ }
+ memcpy(sge,
+ (void *)(unsigned long)wr->sg_list[0].addr,
+ wr->sg_list[0].length);
+ hdr->total_len = wr->sg_list[0].length;
+ wqe_size += roundup(hdr->total_len, OCRDMA_WQE_ALIGN_BYTES);
+ hdr->cw |= (OCRDMA_TYPE_INLINE << OCRDMA_WQE_TYPE_SHIFT);
+ } else {
+ ocrdma_build_sges(hdr, sge, wr->num_sge, wr->sg_list);
+ if (wr->num_sge)
+ wqe_size += (wr->num_sge * sizeof(struct ocrdma_sge));
+ else
+ wqe_size += sizeof(struct ocrdma_sge);
+ hdr->cw |= (OCRDMA_TYPE_LKEY << OCRDMA_WQE_TYPE_SHIFT);
+ }
+ hdr->cw |= ((wqe_size / OCRDMA_WQE_STRIDE) << OCRDMA_WQE_SIZE_SHIFT);
+ return 0;
+}
+
+static int ocrdma_build_send(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr,
+ struct ib_send_wr *wr)
+{
+ int status;
+ struct ocrdma_sge *sge;
+ u32 wqe_size = sizeof(*hdr);
+
+ if (qp->qp_type == IB_QPT_UD || qp->qp_type == IB_QPT_GSI) {
+ ocrdma_build_ud_hdr(qp, hdr, wr);
+ sge = (struct ocrdma_sge *)(hdr + 2);
+ wqe_size += sizeof(struct ocrdma_ewqe_ud_hdr);
+ } else
+ sge = (struct ocrdma_sge *)(hdr + 1);
+
+ status = ocrdma_build_inline_sges(qp, hdr, sge, wr, wqe_size);
+ return status;
+}
+
+static int ocrdma_build_write(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr,
+ struct ib_send_wr *wr)
+{
+ int status;
+ struct ocrdma_sge *ext_rw = (struct ocrdma_sge *)(hdr + 1);
+ struct ocrdma_sge *sge = ext_rw + 1;
+ u32 wqe_size = sizeof(*hdr) + sizeof(*ext_rw);
+
+ status = ocrdma_build_inline_sges(qp, hdr, sge, wr, wqe_size);
+ if (status)
+ return status;
+ ext_rw->addr_lo = wr->wr.rdma.remote_addr;
+ ext_rw->addr_hi = upper_32_bits(wr->wr.rdma.remote_addr);
+ ext_rw->lrkey = wr->wr.rdma.rkey;
+ ext_rw->len = hdr->total_len;
+ return 0;
+}
+
+static void ocrdma_build_read(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr,
+ struct ib_send_wr *wr)
+{
+ struct ocrdma_sge *ext_rw = (struct ocrdma_sge *)(hdr + 1);
+ struct ocrdma_sge *sge = ext_rw + 1;
+ u32 wqe_size = ((wr->num_sge + 1) * sizeof(struct ocrdma_sge)) +
+ sizeof(struct ocrdma_hdr_wqe);
+
+ ocrdma_build_sges(hdr, sge, wr->num_sge, wr->sg_list);
+ hdr->cw |= ((wqe_size / OCRDMA_WQE_STRIDE) << OCRDMA_WQE_SIZE_SHIFT);
+ hdr->cw |= (OCRDMA_READ << OCRDMA_WQE_OPCODE_SHIFT);
+ hdr->cw |= (OCRDMA_TYPE_LKEY << OCRDMA_WQE_TYPE_SHIFT);
+
+ ext_rw->addr_lo = wr->wr.rdma.remote_addr;
+ ext_rw->addr_hi = upper_32_bits(wr->wr.rdma.remote_addr);
+ ext_rw->lrkey = wr->wr.rdma.rkey;
+ ext_rw->len = hdr->total_len;
+}
+
+static void ocrdma_ring_sq_db(struct ocrdma_qp *qp)
+{
+ u32 val = qp->sq.dbid | (1 << 16);
+
+ iowrite32(val, qp->sq_db);
+}
+
+int ocrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
+ struct ib_send_wr **bad_wr)
+{
+ int status = 0;
+ struct ocrdma_qp *qp = get_ocrdma_qp(ibqp);
+ struct ocrdma_hdr_wqe *hdr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qp->q_lock, flags);
+ if (qp->state != OCRDMA_QPS_RTS && qp->state != OCRDMA_QPS_SQD) {
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ return -EINVAL;
+ }
+
+ while (wr) {
+ if (ocrdma_hwq_free_cnt(&qp->sq) == 0 ||
+ wr->num_sge > qp->sq.max_sges) {
+ status = -ENOMEM;
+ break;
+ }
+ hdr = ocrdma_hwq_head(&qp->sq);
+ hdr->cw = 0;
+ if (wr->send_flags & IB_SEND_SIGNALED)
+ hdr->cw |= (OCRDMA_FLAG_SIG << OCRDMA_WQE_FLAGS_SHIFT);
+ if (wr->send_flags & IB_SEND_FENCE)
+ hdr->cw |=
+ (OCRDMA_FLAG_FENCE_L << OCRDMA_WQE_FLAGS_SHIFT);
+ if (wr->send_flags & IB_SEND_SOLICITED)
+ hdr->cw |=
+ (OCRDMA_FLAG_SOLICIT << OCRDMA_WQE_FLAGS_SHIFT);
+ hdr->total_len = 0;
+ switch (wr->opcode) {
+ case IB_WR_SEND_WITH_IMM:
+ hdr->cw |= (OCRDMA_FLAG_IMM << OCRDMA_WQE_FLAGS_SHIFT);
+ hdr->immdt = ntohl(wr->ex.imm_data);
+ case IB_WR_SEND:
+ hdr->cw |= (OCRDMA_SEND << OCRDMA_WQE_OPCODE_SHIFT);
+ ocrdma_build_send(qp, hdr, wr);
+ break;
+ case IB_WR_SEND_WITH_INV:
+ hdr->cw |= (OCRDMA_FLAG_INV << OCRDMA_WQE_FLAGS_SHIFT);
+ hdr->cw |= (OCRDMA_SEND << OCRDMA_WQE_OPCODE_SHIFT);
+ hdr->lkey = wr->ex.invalidate_rkey;
+ status = ocrdma_build_send(qp, hdr, wr);
+ break;
+ case IB_WR_RDMA_WRITE_WITH_IMM:
+ hdr->cw |= (OCRDMA_FLAG_IMM << OCRDMA_WQE_FLAGS_SHIFT);
+ hdr->immdt = ntohl(wr->ex.imm_data);
+ case IB_WR_RDMA_WRITE:
+ hdr->cw |= (OCRDMA_WRITE << OCRDMA_WQE_OPCODE_SHIFT);
+ status = ocrdma_build_write(qp, hdr, wr);
+ break;
+ case IB_WR_RDMA_READ_WITH_INV:
+ hdr->cw |= (OCRDMA_FLAG_INV << OCRDMA_WQE_FLAGS_SHIFT);
+ case IB_WR_RDMA_READ:
+ ocrdma_build_read(qp, hdr, wr);
+ break;
+ case IB_WR_LOCAL_INV:
+ hdr->cw |=
+ (OCRDMA_LKEY_INV << OCRDMA_WQE_OPCODE_SHIFT);
+ hdr->cw |= (sizeof(struct ocrdma_hdr_wqe) /
+ OCRDMA_WQE_STRIDE) << OCRDMA_WQE_SIZE_SHIFT;
+ hdr->lkey = wr->ex.invalidate_rkey;
+ break;
+ default:
+ status = -EINVAL;
+ break;
+ }
+ if (status) {
+ *bad_wr = wr;
+ break;
+ }
+ if (wr->send_flags & IB_SEND_SIGNALED)
+ qp->wqe_wr_id_tbl[qp->sq.head].signaled = 1;
+ else
+ qp->wqe_wr_id_tbl[qp->sq.head].signaled = 0;
+ qp->wqe_wr_id_tbl[qp->sq.head].wrid = wr->wr_id;
+ ocrdma_cpu_to_le32(hdr, ((hdr->cw >> OCRDMA_WQE_SIZE_SHIFT) &
+ OCRDMA_WQE_SIZE_MASK) * OCRDMA_WQE_STRIDE);
+ /* make sure wqe is written before adapter can access it */
+ wmb();
+ /* inform hw to start processing it */
+ ocrdma_ring_sq_db(qp);
+
+ /* update pointer, counter for next wr */
+ ocrdma_hwq_inc_head(&qp->sq);
+ wr = wr->next;
+ }
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ return status;
+}
+
+static void ocrdma_ring_rq_db(struct ocrdma_qp *qp)
+{
+ u32 val = qp->rq.dbid | (1 << OCRDMA_GET_NUM_POSTED_SHIFT_VAL(qp));
+
+ iowrite32(val, qp->rq_db);
+}
+
+static void ocrdma_build_rqe(struct ocrdma_hdr_wqe *rqe, struct ib_recv_wr *wr,
+ u16 tag)
+{
+ u32 wqe_size = 0;
+ struct ocrdma_sge *sge;
+ if (wr->num_sge)
+ wqe_size = (wr->num_sge * sizeof(*sge)) + sizeof(*rqe);
+ else
+ wqe_size = sizeof(*sge) + sizeof(*rqe);
+
+ rqe->cw = ((wqe_size / OCRDMA_WQE_STRIDE) <<
+ OCRDMA_WQE_SIZE_SHIFT);
+ rqe->cw |= (OCRDMA_FLAG_SIG << OCRDMA_WQE_FLAGS_SHIFT);
+ rqe->cw |= (OCRDMA_TYPE_LKEY << OCRDMA_WQE_TYPE_SHIFT);
+ rqe->total_len = 0;
+ rqe->rsvd_tag = tag;
+ sge = (struct ocrdma_sge *)(rqe + 1);
+ ocrdma_build_sges(rqe, sge, wr->num_sge, wr->sg_list);
+ ocrdma_cpu_to_le32(rqe, wqe_size);
+}
+
+int ocrdma_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
+ struct ib_recv_wr **bad_wr)
+{
+ int status = 0;
+ unsigned long flags;
+ struct ocrdma_qp *qp = get_ocrdma_qp(ibqp);
+ struct ocrdma_hdr_wqe *rqe;
+
+ spin_lock_irqsave(&qp->q_lock, flags);
+ if (qp->state == OCRDMA_QPS_RST || qp->state == OCRDMA_QPS_ERR) {
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ *bad_wr = wr;
+ return -EINVAL;
+ }
+ while (wr) {
+ if (ocrdma_hwq_free_cnt(&qp->rq) == 0 ||
+ wr->num_sge > qp->rq.max_sges) {
+ *bad_wr = wr;
+ status = -ENOMEM;
+ break;
+ }
+ rqe = ocrdma_hwq_head(&qp->rq);
+ ocrdma_build_rqe(rqe, wr, 0);
+
+ qp->rqe_wr_id_tbl[qp->rq.head] = wr->wr_id;
+ /* make sure rqe is written before adapter can access it */
+ wmb();
+
+ /* inform hw to start processing it */
+ ocrdma_ring_rq_db(qp);
+
+ /* update pointer, counter for next wr */
+ ocrdma_hwq_inc_head(&qp->rq);
+ wr = wr->next;
+ }
+ spin_unlock_irqrestore(&qp->q_lock, flags);
+ return status;
+}
+
+/* cqe for srq's rqe can potentially arrive out of order.
+ * index gives the entry in the shadow table where to store
+ * the wr_id. tag/index is returned in cqe to reference back
+ * for a given rqe.
+ */
+static int ocrdma_srq_get_idx(struct ocrdma_srq *srq)
+{
+ int row = 0;
+ int indx = 0;
+
+ for (row = 0; row < srq->bit_fields_len; row++) {
+ if (srq->idx_bit_fields[row]) {
+ indx = ffs(srq->idx_bit_fields[row]);
+ indx = (row * 32) + (indx - 1);
+ if (indx >= srq->rq.max_cnt)
+ BUG();
+ ocrdma_srq_toggle_bit(srq, indx);
+ break;
+ }
+ }
+
+ if (row == srq->bit_fields_len)
+ BUG();
+ return indx;
+}
+
+static void ocrdma_ring_srq_db(struct ocrdma_srq *srq)
+{
+ u32 val = srq->rq.dbid | (1 << 16);
+
+ iowrite32(val, srq->db + OCRDMA_DB_GEN2_SRQ_OFFSET);
+}
+
+int ocrdma_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
+ struct ib_recv_wr **bad_wr)
+{
+ int status = 0;
+ unsigned long flags;
+ struct ocrdma_srq *srq;
+ struct ocrdma_hdr_wqe *rqe;
+ u16 tag;
+
+ srq = get_ocrdma_srq(ibsrq);
+
+ spin_lock_irqsave(&srq->q_lock, flags);
+ while (wr) {
+ if (ocrdma_hwq_free_cnt(&srq->rq) == 0 ||
+ wr->num_sge > srq->rq.max_sges) {
+ status = -ENOMEM;
+ *bad_wr = wr;
+ break;
+ }
+ tag = ocrdma_srq_get_idx(srq);
+ rqe = ocrdma_hwq_head(&srq->rq);
+ ocrdma_build_rqe(rqe, wr, tag);
+
+ srq->rqe_wr_id_tbl[tag] = wr->wr_id;
+ /* make sure rqe is written before adapter can perform DMA */
+ wmb();
+ /* inform hw to start processing it */
+ ocrdma_ring_srq_db(srq);
+ /* update pointer, counter for next wr */
+ ocrdma_hwq_inc_head(&srq->rq);
+ wr = wr->next;
+ }
+ spin_unlock_irqrestore(&srq->q_lock, flags);
+ return status;
+}
+
+static enum ib_wc_status ocrdma_to_ibwc_err(u16 status)
+{
+ enum ib_wc_status ibwc_status = IB_WC_GENERAL_ERR;
+
+ switch (status) {
+ case OCRDMA_CQE_GENERAL_ERR:
+ ibwc_status = IB_WC_GENERAL_ERR;
+ break;
+ case OCRDMA_CQE_LOC_LEN_ERR:
+ ibwc_status = IB_WC_LOC_LEN_ERR;
+ break;
+ case OCRDMA_CQE_LOC_QP_OP_ERR:
+ ibwc_status = IB_WC_LOC_QP_OP_ERR;
+ break;
+ case OCRDMA_CQE_LOC_EEC_OP_ERR:
+ ibwc_status = IB_WC_LOC_EEC_OP_ERR;
+ break;
+ case OCRDMA_CQE_LOC_PROT_ERR:
+ ibwc_status = IB_WC_LOC_PROT_ERR;
+ break;
+ case OCRDMA_CQE_WR_FLUSH_ERR:
+ ibwc_status = IB_WC_WR_FLUSH_ERR;
+ break;
+ case OCRDMA_CQE_MW_BIND_ERR:
+ ibwc_status = IB_WC_MW_BIND_ERR;
+ break;
+ case OCRDMA_CQE_BAD_RESP_ERR:
+ ibwc_status = IB_WC_BAD_RESP_ERR;
+ break;
+ case OCRDMA_CQE_LOC_ACCESS_ERR:
+ ibwc_status = IB_WC_LOC_ACCESS_ERR;
+ break;
+ case OCRDMA_CQE_REM_INV_REQ_ERR:
+ ibwc_status = IB_WC_REM_INV_REQ_ERR;
+ break;
+ case OCRDMA_CQE_REM_ACCESS_ERR:
+ ibwc_status = IB_WC_REM_ACCESS_ERR;
+ break;
+ case OCRDMA_CQE_REM_OP_ERR:
+ ibwc_status = IB_WC_REM_OP_ERR;
+ break;
+ case OCRDMA_CQE_RETRY_EXC_ERR:
+ ibwc_status = IB_WC_RETRY_EXC_ERR;
+ break;
+ case OCRDMA_CQE_RNR_RETRY_EXC_ERR:
+ ibwc_status = IB_WC_RNR_RETRY_EXC_ERR;
+ break;
+ case OCRDMA_CQE_LOC_RDD_VIOL_ERR:
+ ibwc_status = IB_WC_LOC_RDD_VIOL_ERR;
+ break;
+ case OCRDMA_CQE_REM_INV_RD_REQ_ERR:
+ ibwc_status = IB_WC_REM_INV_RD_REQ_ERR;
+ break;
+ case OCRDMA_CQE_REM_ABORT_ERR:
+ ibwc_status = IB_WC_REM_ABORT_ERR;
+ break;
+ case OCRDMA_CQE_INV_EECN_ERR:
+ ibwc_status = IB_WC_INV_EECN_ERR;
+ break;
+ case OCRDMA_CQE_INV_EEC_STATE_ERR:
+ ibwc_status = IB_WC_INV_EEC_STATE_ERR;
+ break;
+ case OCRDMA_CQE_FATAL_ERR:
+ ibwc_status = IB_WC_FATAL_ERR;
+ break;
+ case OCRDMA_CQE_RESP_TIMEOUT_ERR:
+ ibwc_status = IB_WC_RESP_TIMEOUT_ERR;
+ break;
+ default:
+ ibwc_status = IB_WC_GENERAL_ERR;
+ break;
+ };
+ return ibwc_status;
+}
+
+static void ocrdma_update_wc(struct ocrdma_qp *qp, struct ib_wc *ibwc,
+ u32 wqe_idx)
+{
+ struct ocrdma_hdr_wqe *hdr;
+ struct ocrdma_sge *rw;
+ int opcode;
+
+ hdr = ocrdma_hwq_head_from_idx(&qp->sq, wqe_idx);
+
+ ibwc->wr_id = qp->wqe_wr_id_tbl[wqe_idx].wrid;
+ /* Undo the hdr->cw swap */
+ opcode = le32_to_cpu(hdr->cw) & OCRDMA_WQE_OPCODE_MASK;
+ switch (opcode) {
+ case OCRDMA_WRITE:
+ ibwc->opcode = IB_WC_RDMA_WRITE;
+ break;
+ case OCRDMA_READ:
+ rw = (struct ocrdma_sge *)(hdr + 1);
+ ibwc->opcode = IB_WC_RDMA_READ;
+ ibwc->byte_len = rw->len;
+ break;
+ case OCRDMA_SEND:
+ ibwc->opcode = IB_WC_SEND;
+ break;
+ case OCRDMA_LKEY_INV:
+ ibwc->opcode = IB_WC_LOCAL_INV;
+ break;
+ default:
+ ibwc->status = IB_WC_GENERAL_ERR;
+ ocrdma_err("%s() invalid opcode received = 0x%x\n",
+ __func__, hdr->cw & OCRDMA_WQE_OPCODE_MASK);
+ break;
+ };
+}
+
+static void ocrdma_set_cqe_status_flushed(struct ocrdma_qp *qp,
+ struct ocrdma_cqe *cqe)
+{
+ if (is_cqe_for_sq(cqe)) {
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) &
+ ~OCRDMA_CQE_STATUS_MASK);
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) |
+ (OCRDMA_CQE_WR_FLUSH_ERR <<
+ OCRDMA_CQE_STATUS_SHIFT));
+ } else {
+ if (qp->qp_type == IB_QPT_UD || qp->qp_type == IB_QPT_GSI) {
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) &
+ ~OCRDMA_CQE_UD_STATUS_MASK);
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) |
+ (OCRDMA_CQE_WR_FLUSH_ERR <<
+ OCRDMA_CQE_UD_STATUS_SHIFT));
+ } else {
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) &
+ ~OCRDMA_CQE_STATUS_MASK);
+ cqe->flags_status_srcqpn = cpu_to_le32(le32_to_cpu(
+ cqe->flags_status_srcqpn) |
+ (OCRDMA_CQE_WR_FLUSH_ERR <<
+ OCRDMA_CQE_STATUS_SHIFT));
+ }
+ }
+}
+
+static bool ocrdma_update_err_cqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe,
+ struct ocrdma_qp *qp, int status)
+{
+ bool expand = false;
+
+ ibwc->byte_len = 0;
+ ibwc->qp = &qp->ibqp;
+ ibwc->status = ocrdma_to_ibwc_err(status);
+
+ ocrdma_flush_qp(qp);
+ ocrdma_qp_state_machine(qp, IB_QPS_ERR, NULL);
+
+ /* if wqe/rqe pending for which cqe needs to be returned,
+ * trigger inflating it.
+ */
+ if (!is_hw_rq_empty(qp) || !is_hw_sq_empty(qp)) {
+ expand = true;
+ ocrdma_set_cqe_status_flushed(qp, cqe);
+ }
+ return expand;
+}
+
+static int ocrdma_update_err_rcqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe,
+ struct ocrdma_qp *qp, int status)
+{
+ ibwc->opcode = IB_WC_RECV;
+ ibwc->wr_id = qp->rqe_wr_id_tbl[qp->rq.tail];
+ ocrdma_hwq_inc_tail(&qp->rq);
+
+ return ocrdma_update_err_cqe(ibwc, cqe, qp, status);
+}
+
+static int ocrdma_update_err_scqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe,
+ struct ocrdma_qp *qp, int status)
+{
+ ocrdma_update_wc(qp, ibwc, qp->sq.tail);
+ ocrdma_hwq_inc_tail(&qp->sq);
+
+ return ocrdma_update_err_cqe(ibwc, cqe, qp, status);
+}
+
+
+static bool ocrdma_poll_err_scqe(struct ocrdma_qp *qp,
+ struct ocrdma_cqe *cqe, struct ib_wc *ibwc,
+ bool *polled, bool *stop)
+{
+ bool expand;
+ int status = (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_STATUS_MASK) >> OCRDMA_CQE_STATUS_SHIFT;
+
+ /* when hw sq is empty, but rq is not empty, so we continue
+ * to keep the cqe in order to get the cq event again.
+ */
+ if (is_hw_sq_empty(qp) && !is_hw_rq_empty(qp)) {
+ /* when cq for rq and sq is same, it is safe to return
+ * flush cqe for RQEs.
+ */
+ if (!qp->srq && (qp->sq_cq == qp->rq_cq)) {
+ *polled = true;
+ status = OCRDMA_CQE_WR_FLUSH_ERR;
+ expand = ocrdma_update_err_rcqe(ibwc, cqe, qp, status);
+ } else {
+ /* stop processing further cqe as this cqe is used for
+ * triggering cq event on buddy cq of RQ.
+ * When QP is destroyed, this cqe will be removed
+ * from the cq's hardware q.
+ */
+ *polled = false;
+ *stop = true;
+ expand = false;
+ }
+ } else {
+ *polled = true;
+ expand = ocrdma_update_err_scqe(ibwc, cqe, qp, status);
+ }
+ return expand;
+}
+
+static bool ocrdma_poll_success_scqe(struct ocrdma_qp *qp,
+ struct ocrdma_cqe *cqe,
+ struct ib_wc *ibwc, bool *polled)
+{
+ bool expand = false;
+ int tail = qp->sq.tail;
+ u32 wqe_idx;
+
+ if (!qp->wqe_wr_id_tbl[tail].signaled) {
+ expand = true; /* CQE cannot be consumed yet */
+ *polled = false; /* WC cannot be consumed yet */
+ } else {
+ ibwc->status = IB_WC_SUCCESS;
+ ibwc->wc_flags = 0;
+ ibwc->qp = &qp->ibqp;
+ ocrdma_update_wc(qp, ibwc, tail);
+ *polled = true;
+ wqe_idx = le32_to_cpu(cqe->wq.wqeidx) & OCRDMA_CQE_WQEIDX_MASK;
+ if (tail != wqe_idx)
+ expand = true; /* Coalesced CQE can't be consumed yet */
+ }
+ ocrdma_hwq_inc_tail(&qp->sq);
+ return expand;
+}
+
+static bool ocrdma_poll_scqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe,
+ struct ib_wc *ibwc, bool *polled, bool *stop)
+{
+ int status;
+ bool expand;
+
+ status = (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_STATUS_MASK) >> OCRDMA_CQE_STATUS_SHIFT;
+
+ if (status == OCRDMA_CQE_SUCCESS)
+ expand = ocrdma_poll_success_scqe(qp, cqe, ibwc, polled);
+ else
+ expand = ocrdma_poll_err_scqe(qp, cqe, ibwc, polled, stop);
+ return expand;
+}
+
+static int ocrdma_update_ud_rcqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe)
+{
+ int status;
+
+ status = (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_UD_STATUS_MASK) >> OCRDMA_CQE_UD_STATUS_SHIFT;
+ ibwc->src_qp = le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_SRCQP_MASK;
+ ibwc->pkey_index = le32_to_cpu(cqe->ud.rxlen_pkey) &
+ OCRDMA_CQE_PKEY_MASK;
+ ibwc->wc_flags = IB_WC_GRH;
+ ibwc->byte_len = (le32_to_cpu(cqe->ud.rxlen_pkey) >>
+ OCRDMA_CQE_UD_XFER_LEN_SHIFT);
+ return status;
+}
+
+static void ocrdma_update_free_srq_cqe(struct ib_wc *ibwc,
+ struct ocrdma_cqe *cqe,
+ struct ocrdma_qp *qp)
+{
+ unsigned long flags;
+ struct ocrdma_srq *srq;
+ u32 wqe_idx;
+
+ srq = get_ocrdma_srq(qp->ibqp.srq);
+ wqe_idx = le32_to_cpu(cqe->rq.buftag_qpn) >> OCRDMA_CQE_BUFTAG_SHIFT;
+ ibwc->wr_id = srq->rqe_wr_id_tbl[wqe_idx];
+ spin_lock_irqsave(&srq->q_lock, flags);
+ ocrdma_srq_toggle_bit(srq, wqe_idx);
+ spin_unlock_irqrestore(&srq->q_lock, flags);
+ ocrdma_hwq_inc_tail(&srq->rq);
+}
+
+static bool ocrdma_poll_err_rcqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe,
+ struct ib_wc *ibwc, bool *polled, bool *stop,
+ int status)
+{
+ bool expand;
+
+ /* when hw_rq is empty, but wq is not empty, so continue
+ * to keep the cqe to get the cq event again.
+ */
+ if (is_hw_rq_empty(qp) && !is_hw_sq_empty(qp)) {
+ if (!qp->srq && (qp->sq_cq == qp->rq_cq)) {
+ *polled = true;
+ status = OCRDMA_CQE_WR_FLUSH_ERR;
+ expand = ocrdma_update_err_scqe(ibwc, cqe, qp, status);
+ } else {
+ *polled = false;
+ *stop = true;
+ expand = false;
+ }
+ } else
+ expand = ocrdma_update_err_rcqe(ibwc, cqe, qp, status);
+ return expand;
+}
+
+static void ocrdma_poll_success_rcqe(struct ocrdma_qp *qp,
+ struct ocrdma_cqe *cqe, struct ib_wc *ibwc)
+{
+ ibwc->opcode = IB_WC_RECV;
+ ibwc->qp = &qp->ibqp;
+ ibwc->status = IB_WC_SUCCESS;
+
+ if (qp->qp_type == IB_QPT_UD || qp->qp_type == IB_QPT_GSI)
+ ocrdma_update_ud_rcqe(ibwc, cqe);
+ else
+ ibwc->byte_len = le32_to_cpu(cqe->rq.rxlen);
+
+ if (is_cqe_imm(cqe)) {
+ ibwc->ex.imm_data = htonl(le32_to_cpu(cqe->rq.lkey_immdt));
+ ibwc->wc_flags |= IB_WC_WITH_IMM;
+ } else if (is_cqe_wr_imm(cqe)) {
+ ibwc->opcode = IB_WC_RECV_RDMA_WITH_IMM;
+ ibwc->ex.imm_data = htonl(le32_to_cpu(cqe->rq.lkey_immdt));
+ ibwc->wc_flags |= IB_WC_WITH_IMM;
+ } else if (is_cqe_invalidated(cqe)) {
+ ibwc->ex.invalidate_rkey = le32_to_cpu(cqe->rq.lkey_immdt);
+ ibwc->wc_flags |= IB_WC_WITH_INVALIDATE;
+ }
+ if (qp->ibqp.srq)
+ ocrdma_update_free_srq_cqe(ibwc, cqe, qp);
+ else {
+ ibwc->wr_id = qp->rqe_wr_id_tbl[qp->rq.tail];
+ ocrdma_hwq_inc_tail(&qp->rq);
+ }
+}
+
+static bool ocrdma_poll_rcqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe,
+ struct ib_wc *ibwc, bool *polled, bool *stop)
+{
+ int status;
+ bool expand = false;
+
+ ibwc->wc_flags = 0;
+ if (qp->qp_type == IB_QPT_UD || qp->qp_type == IB_QPT_GSI)
+ status = (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_UD_STATUS_MASK) >>
+ OCRDMA_CQE_UD_STATUS_SHIFT;
+ else
+ status = (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_STATUS_MASK) >> OCRDMA_CQE_STATUS_SHIFT;
+
+ if (status == OCRDMA_CQE_SUCCESS) {
+ *polled = true;
+ ocrdma_poll_success_rcqe(qp, cqe, ibwc);
+ } else {
+ expand = ocrdma_poll_err_rcqe(qp, cqe, ibwc, polled, stop,
+ status);
+ }
+ return expand;
+}
+
+static void ocrdma_change_cq_phase(struct ocrdma_cq *cq, struct ocrdma_cqe *cqe,
+ u16 cur_getp)
+{
+ if (cq->phase_change) {
+ if (cur_getp == 0)
+ cq->phase = (~cq->phase & OCRDMA_CQE_VALID);
+ } else
+ /* clear valid bit */
+ cqe->flags_status_srcqpn = 0;
+}
+
+static int ocrdma_poll_hwcq(struct ocrdma_cq *cq, int num_entries,
+ struct ib_wc *ibwc)
+{
+ u16 qpn = 0;
+ int i = 0;
+ bool expand = false;
+ int polled_hw_cqes = 0;
+ struct ocrdma_qp *qp = NULL;
+ struct ocrdma_dev *dev = cq->dev;
+ struct ocrdma_cqe *cqe;
+ u16 cur_getp; bool polled = false; bool stop = false;
+
+ cur_getp = cq->getp;
+ while (num_entries) {
+ cqe = cq->va + cur_getp;
+ /* check whether valid cqe or not */
+ if (!is_cqe_valid(cq, cqe))
+ break;
+ qpn = (le32_to_cpu(cqe->cmn.qpn) & OCRDMA_CQE_QPN_MASK);
+ /* ignore discarded cqe */
+ if (qpn == 0)
+ goto skip_cqe;
+ qp = dev->qp_tbl[qpn];
+ BUG_ON(qp == NULL);
+
+ if (is_cqe_for_sq(cqe)) {
+ expand = ocrdma_poll_scqe(qp, cqe, ibwc, &polled,
+ &stop);
+ } else {
+ expand = ocrdma_poll_rcqe(qp, cqe, ibwc, &polled,
+ &stop);
+ }
+ if (expand)
+ goto expand_cqe;
+ if (stop)
+ goto stop_cqe;
+ /* clear qpn to avoid duplicate processing by discard_cqe() */
+ cqe->cmn.qpn = 0;
+skip_cqe:
+ polled_hw_cqes += 1;
+ cur_getp = (cur_getp + 1) % cq->max_hw_cqe;
+ ocrdma_change_cq_phase(cq, cqe, cur_getp);
+expand_cqe:
+ if (polled) {
+ num_entries -= 1;
+ i += 1;
+ ibwc = ibwc + 1;
+ polled = false;
+ }
+ }
+stop_cqe:
+ cq->getp = cur_getp;
+ if (polled_hw_cqes || expand || stop) {
+ ocrdma_ring_cq_db(dev, cq->id, cq->armed, cq->solicited,
+ polled_hw_cqes);
+ }
+ return i;
+}
+
+/* insert error cqe if the QP's SQ or RQ's CQ matches the CQ under poll. */
+static int ocrdma_add_err_cqe(struct ocrdma_cq *cq, int num_entries,
+ struct ocrdma_qp *qp, struct ib_wc *ibwc)
+{
+ int err_cqes = 0;
+
+ while (num_entries) {
+ if (is_hw_sq_empty(qp) && is_hw_rq_empty(qp))
+ break;
+ if (!is_hw_sq_empty(qp) && qp->sq_cq == cq) {
+ ocrdma_update_wc(qp, ibwc, qp->sq.tail);
+ ocrdma_hwq_inc_tail(&qp->sq);
+ } else if (!is_hw_rq_empty(qp) && qp->rq_cq == cq) {
+ ibwc->wr_id = qp->rqe_wr_id_tbl[qp->rq.tail];
+ ocrdma_hwq_inc_tail(&qp->rq);
+ } else
+ return err_cqes;
+ ibwc->byte_len = 0;
+ ibwc->status = IB_WC_WR_FLUSH_ERR;
+ ibwc = ibwc + 1;
+ err_cqes += 1;
+ num_entries -= 1;
+ }
+ return err_cqes;
+}
+
+int ocrdma_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
+{
+ int cqes_to_poll = num_entries;
+ struct ocrdma_cq *cq = NULL;
+ unsigned long flags;
+ struct ocrdma_dev *dev;
+ int num_os_cqe = 0, err_cqes = 0;
+ struct ocrdma_qp *qp;
+
+ cq = get_ocrdma_cq(ibcq);
+ dev = cq->dev;
+
+ /* poll cqes from adapter CQ */
+ spin_lock_irqsave(&cq->cq_lock, flags);
+ num_os_cqe = ocrdma_poll_hwcq(cq, cqes_to_poll, wc);
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
+ cqes_to_poll -= num_os_cqe;
+
+ if (cqes_to_poll) {
+ wc = wc + num_os_cqe;
+ /* adapter returns single error cqe when qp moves to
+ * error state. So insert error cqes with wc_status as
+ * FLUSHED for pending WQEs and RQEs of QP's SQ and RQ
+ * respectively which uses this CQ.
+ */
+ spin_lock_irqsave(&dev->flush_q_lock, flags);
+ list_for_each_entry(qp, &cq->sq_head, sq_entry) {
+ if (cqes_to_poll == 0)
+ break;
+ err_cqes = ocrdma_add_err_cqe(cq, cqes_to_poll, qp, wc);
+ cqes_to_poll -= err_cqes;
+ num_os_cqe += err_cqes;
+ wc = wc + err_cqes;
+ }
+ spin_unlock_irqrestore(&dev->flush_q_lock, flags);
+ }
+ return num_os_cqe;
+}
+
+int ocrdma_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags cq_flags)
+{
+ struct ocrdma_cq *cq;
+ unsigned long flags;
+ struct ocrdma_dev *dev;
+ u16 cq_id;
+ u16 cur_getp;
+ struct ocrdma_cqe *cqe;
+
+ cq = get_ocrdma_cq(ibcq);
+ cq_id = cq->id;
+ dev = cq->dev;
+
+ spin_lock_irqsave(&cq->cq_lock, flags);
+ if (cq_flags & IB_CQ_NEXT_COMP || cq_flags & IB_CQ_SOLICITED)
+ cq->armed = true;
+ if (cq_flags & IB_CQ_SOLICITED)
+ cq->solicited = true;
+
+ cur_getp = cq->getp;
+ cqe = cq->va + cur_getp;
+
+ /* check whether any valid cqe exist or not, if not then safe to
+ * arm. If cqe is not yet consumed, then let it get consumed and then
+ * we arm it to avoid false interrupts.
+ */
+ if (!is_cqe_valid(cq, cqe) || cq->arm_needed) {
+ cq->arm_needed = false;
+ ocrdma_ring_cq_db(dev, cq_id, cq->armed, cq->solicited, 0);
+ }
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
+ return 0;
+}
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
new file mode 100644
index 000000000000..e6483439f25f
--- /dev/null
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
@@ -0,0 +1,94 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_VERBS_H__
+#define __OCRDMA_VERBS_H__
+
+#include <linux/version.h>
+int ocrdma_post_send(struct ib_qp *, struct ib_send_wr *,
+ struct ib_send_wr **bad_wr);
+int ocrdma_post_recv(struct ib_qp *, struct ib_recv_wr *,
+ struct ib_recv_wr **bad_wr);
+
+int ocrdma_poll_cq(struct ib_cq *, int num_entries, struct ib_wc *wc);
+int ocrdma_arm_cq(struct ib_cq *, enum ib_cq_notify_flags flags);
+
+int ocrdma_query_device(struct ib_device *, struct ib_device_attr *props);
+int ocrdma_query_port(struct ib_device *, u8 port, struct ib_port_attr *props);
+int ocrdma_modify_port(struct ib_device *, u8 port, int mask,
+ struct ib_port_modify *props);
+
+void ocrdma_get_guid(struct ocrdma_dev *, u8 *guid);
+int ocrdma_query_gid(struct ib_device *, u8 port,
+ int index, union ib_gid *gid);
+int ocrdma_query_pkey(struct ib_device *, u8 port, u16 index, u16 *pkey);
+
+struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *,
+ struct ib_udata *);
+int ocrdma_dealloc_ucontext(struct ib_ucontext *);
+
+int ocrdma_mmap(struct ib_ucontext *, struct vm_area_struct *vma);
+
+struct ib_pd *ocrdma_alloc_pd(struct ib_device *,
+ struct ib_ucontext *, struct ib_udata *);
+int ocrdma_dealloc_pd(struct ib_pd *pd);
+
+struct ib_cq *ocrdma_create_cq(struct ib_device *, int entries, int vector,
+ struct ib_ucontext *, struct ib_udata *);
+int ocrdma_resize_cq(struct ib_cq *, int cqe, struct ib_udata *);
+int ocrdma_destroy_cq(struct ib_cq *);
+
+struct ib_qp *ocrdma_create_qp(struct ib_pd *,
+ struct ib_qp_init_attr *attrs,
+ struct ib_udata *);
+int _ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
+ int attr_mask);
+int ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_udata *udata);
+int ocrdma_query_qp(struct ib_qp *,
+ struct ib_qp_attr *qp_attr,
+ int qp_attr_mask, struct ib_qp_init_attr *);
+int ocrdma_destroy_qp(struct ib_qp *);
+
+struct ib_srq *ocrdma_create_srq(struct ib_pd *, struct ib_srq_init_attr *,
+ struct ib_udata *);
+int ocrdma_modify_srq(struct ib_srq *, struct ib_srq_attr *,
+ enum ib_srq_attr_mask, struct ib_udata *);
+int ocrdma_query_srq(struct ib_srq *, struct ib_srq_attr *);
+int ocrdma_destroy_srq(struct ib_srq *);
+int ocrdma_post_srq_recv(struct ib_srq *, struct ib_recv_wr *,
+ struct ib_recv_wr **bad_recv_wr);
+
+int ocrdma_dereg_mr(struct ib_mr *);
+struct ib_mr *ocrdma_get_dma_mr(struct ib_pd *, int acc);
+struct ib_mr *ocrdma_reg_kernel_mr(struct ib_pd *,
+ struct ib_phys_buf *buffer_list,
+ int num_phys_buf, int acc, u64 *iova_start);
+struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *, u64 start, u64 length,
+ u64 virt, int acc, struct ib_udata *);
+
+#endif /* __OCRDMA_VERBS_H__ */