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path: root/drivers/infiniband/hw/bnxt_re
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Diffstat (limited to 'drivers/infiniband/hw/bnxt_re')
-rw-r--r--drivers/infiniband/hw/bnxt_re/bnxt_re.h4
-rw-r--r--drivers/infiniband/hw/bnxt_re/ib_verbs.c471
-rw-r--r--drivers/infiniband/hw/bnxt_re/ib_verbs.h22
-rw-r--r--drivers/infiniband/hw/bnxt_re/main.c4
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.c384
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.h18
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_rcfw.c314
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_rcfw.h61
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_res.h4
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_sp.c333
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_sp.h2
11 files changed, 856 insertions, 761 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index ebf7be8d4139..08772836fded 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -56,6 +56,10 @@
#define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
#define BNXT_RE_MAX_CQ_COUNT (64 * 1024)
+#define BNXT_RE_UD_QP_HW_STALL 0x400000
+
+#define BNXT_RE_RQ_WQE_THRESHOLD 32
+
struct bnxt_re_work {
struct work_struct work;
unsigned long event;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 7ba9e699d7ab..c7bd68311d0c 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -61,6 +61,48 @@
#include "ib_verbs.h"
#include <rdma/bnxt_re-abi.h>
+static int __from_ib_access_flags(int iflags)
+{
+ int qflags = 0;
+
+ if (iflags & IB_ACCESS_LOCAL_WRITE)
+ qflags |= BNXT_QPLIB_ACCESS_LOCAL_WRITE;
+ if (iflags & IB_ACCESS_REMOTE_READ)
+ qflags |= BNXT_QPLIB_ACCESS_REMOTE_READ;
+ if (iflags & IB_ACCESS_REMOTE_WRITE)
+ qflags |= BNXT_QPLIB_ACCESS_REMOTE_WRITE;
+ if (iflags & IB_ACCESS_REMOTE_ATOMIC)
+ qflags |= BNXT_QPLIB_ACCESS_REMOTE_ATOMIC;
+ if (iflags & IB_ACCESS_MW_BIND)
+ qflags |= BNXT_QPLIB_ACCESS_MW_BIND;
+ if (iflags & IB_ZERO_BASED)
+ qflags |= BNXT_QPLIB_ACCESS_ZERO_BASED;
+ if (iflags & IB_ACCESS_ON_DEMAND)
+ qflags |= BNXT_QPLIB_ACCESS_ON_DEMAND;
+ return qflags;
+};
+
+static enum ib_access_flags __to_ib_access_flags(int qflags)
+{
+ enum ib_access_flags iflags = 0;
+
+ if (qflags & BNXT_QPLIB_ACCESS_LOCAL_WRITE)
+ iflags |= IB_ACCESS_LOCAL_WRITE;
+ if (qflags & BNXT_QPLIB_ACCESS_REMOTE_WRITE)
+ iflags |= IB_ACCESS_REMOTE_WRITE;
+ if (qflags & BNXT_QPLIB_ACCESS_REMOTE_READ)
+ iflags |= IB_ACCESS_REMOTE_READ;
+ if (qflags & BNXT_QPLIB_ACCESS_REMOTE_ATOMIC)
+ iflags |= IB_ACCESS_REMOTE_ATOMIC;
+ if (qflags & BNXT_QPLIB_ACCESS_MW_BIND)
+ iflags |= IB_ACCESS_MW_BIND;
+ if (qflags & BNXT_QPLIB_ACCESS_ZERO_BASED)
+ iflags |= IB_ZERO_BASED;
+ if (qflags & BNXT_QPLIB_ACCESS_ON_DEMAND)
+ iflags |= IB_ACCESS_ON_DEMAND;
+ return iflags;
+};
+
static int bnxt_re_build_sgl(struct ib_sge *ib_sg_list,
struct bnxt_qplib_sge *sg_list, int num)
{
@@ -149,8 +191,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
ib_attr->max_total_mcast_qp_attach = 0;
ib_attr->max_ah = dev_attr->max_ah;
- ib_attr->max_fmr = dev_attr->max_fmr;
- ib_attr->max_map_per_fmr = 1; /* ? */
+ ib_attr->max_fmr = 0;
+ ib_attr->max_map_per_fmr = 0;
ib_attr->max_srq = dev_attr->max_srq;
ib_attr->max_srq_wr = dev_attr->max_srq_wqes;
@@ -410,6 +452,158 @@ enum rdma_link_layer bnxt_re_get_link_layer(struct ib_device *ibdev,
return IB_LINK_LAYER_ETHERNET;
}
+#define BNXT_RE_FENCE_PBL_SIZE DIV_ROUND_UP(BNXT_RE_FENCE_BYTES, PAGE_SIZE)
+
+static void bnxt_re_create_fence_wqe(struct bnxt_re_pd *pd)
+{
+ struct bnxt_re_fence_data *fence = &pd->fence;
+ struct ib_mr *ib_mr = &fence->mr->ib_mr;
+ struct bnxt_qplib_swqe *wqe = &fence->bind_wqe;
+
+ memset(wqe, 0, sizeof(*wqe));
+ wqe->type = BNXT_QPLIB_SWQE_TYPE_BIND_MW;
+ wqe->wr_id = BNXT_QPLIB_FENCE_WRID;
+ wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
+ wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
+ wqe->bind.zero_based = false;
+ wqe->bind.parent_l_key = ib_mr->lkey;
+ wqe->bind.va = (u64)(unsigned long)fence->va;
+ wqe->bind.length = fence->size;
+ wqe->bind.access_cntl = __from_ib_access_flags(IB_ACCESS_REMOTE_READ);
+ wqe->bind.mw_type = SQ_BIND_MW_TYPE_TYPE1;
+
+ /* Save the initial rkey in fence structure for now;
+ * wqe->bind.r_key will be set at (re)bind time.
+ */
+ fence->bind_rkey = ib_inc_rkey(fence->mw->rkey);
+}
+
+static int bnxt_re_bind_fence_mw(struct bnxt_qplib_qp *qplib_qp)
+{
+ struct bnxt_re_qp *qp = container_of(qplib_qp, struct bnxt_re_qp,
+ qplib_qp);
+ struct ib_pd *ib_pd = qp->ib_qp.pd;
+ struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
+ struct bnxt_re_fence_data *fence = &pd->fence;
+ struct bnxt_qplib_swqe *fence_wqe = &fence->bind_wqe;
+ struct bnxt_qplib_swqe wqe;
+ int rc;
+
+ memcpy(&wqe, fence_wqe, sizeof(wqe));
+ wqe.bind.r_key = fence->bind_rkey;
+ fence->bind_rkey = ib_inc_rkey(fence->bind_rkey);
+
+ dev_dbg(rdev_to_dev(qp->rdev),
+ "Posting bind fence-WQE: rkey: %#x QP: %d PD: %p\n",
+ wqe.bind.r_key, qp->qplib_qp.id, pd);
+ rc = bnxt_qplib_post_send(&qp->qplib_qp, &wqe);
+ if (rc) {
+ dev_err(rdev_to_dev(qp->rdev), "Failed to bind fence-WQE\n");
+ return rc;
+ }
+ bnxt_qplib_post_send_db(&qp->qplib_qp);
+
+ return rc;
+}
+
+static void bnxt_re_destroy_fence_mr(struct bnxt_re_pd *pd)
+{
+ struct bnxt_re_fence_data *fence = &pd->fence;
+ struct bnxt_re_dev *rdev = pd->rdev;
+ struct device *dev = &rdev->en_dev->pdev->dev;
+ struct bnxt_re_mr *mr = fence->mr;
+
+ if (fence->mw) {
+ bnxt_re_dealloc_mw(fence->mw);
+ fence->mw = NULL;
+ }
+ if (mr) {
+ if (mr->ib_mr.rkey)
+ bnxt_qplib_dereg_mrw(&rdev->qplib_res, &mr->qplib_mr,
+ true);
+ if (mr->ib_mr.lkey)
+ bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
+ kfree(mr);
+ fence->mr = NULL;
+ }
+ if (fence->dma_addr) {
+ dma_unmap_single(dev, fence->dma_addr, BNXT_RE_FENCE_BYTES,
+ DMA_BIDIRECTIONAL);
+ fence->dma_addr = 0;
+ }
+}
+
+static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
+{
+ int mr_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_MW_BIND;
+ struct bnxt_re_fence_data *fence = &pd->fence;
+ struct bnxt_re_dev *rdev = pd->rdev;
+ struct device *dev = &rdev->en_dev->pdev->dev;
+ struct bnxt_re_mr *mr = NULL;
+ dma_addr_t dma_addr = 0;
+ struct ib_mw *mw;
+ u64 pbl_tbl;
+ int rc;
+
+ dma_addr = dma_map_single(dev, fence->va, BNXT_RE_FENCE_BYTES,
+ DMA_BIDIRECTIONAL);
+ rc = dma_mapping_error(dev, dma_addr);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Failed to dma-map fence-MR-mem\n");
+ rc = -EIO;
+ fence->dma_addr = 0;
+ goto fail;
+ }
+ fence->dma_addr = dma_addr;
+
+ /* Allocate a MR */
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr) {
+ rc = -ENOMEM;
+ goto fail;
+ }
+ fence->mr = mr;
+ mr->rdev = rdev;
+ mr->qplib_mr.pd = &pd->qplib_pd;
+ mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
+ mr->qplib_mr.flags = __from_ib_access_flags(mr_access_flags);
+ rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Failed to alloc fence-HW-MR\n");
+ goto fail;
+ }
+
+ /* Register MR */
+ mr->ib_mr.lkey = mr->qplib_mr.lkey;
+ mr->qplib_mr.va = (u64)(unsigned long)fence->va;
+ mr->qplib_mr.total_size = BNXT_RE_FENCE_BYTES;
+ pbl_tbl = dma_addr;
+ rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, &pbl_tbl,
+ BNXT_RE_FENCE_PBL_SIZE, false);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Failed to register fence-MR\n");
+ goto fail;
+ }
+ mr->ib_mr.rkey = mr->qplib_mr.rkey;
+
+ /* Create a fence MW only for kernel consumers */
+ mw = bnxt_re_alloc_mw(&pd->ib_pd, IB_MW_TYPE_1, NULL);
+ if (!mw) {
+ dev_err(rdev_to_dev(rdev),
+ "Failed to create fence-MW for PD: %p\n", pd);
+ rc = -EINVAL;
+ goto fail;
+ }
+ fence->mw = mw;
+
+ bnxt_re_create_fence_wqe(pd);
+ return 0;
+
+fail:
+ bnxt_re_destroy_fence_mr(pd);
+ return rc;
+}
+
/* Protection Domains */
int bnxt_re_dealloc_pd(struct ib_pd *ib_pd)
{
@@ -417,6 +611,7 @@ int bnxt_re_dealloc_pd(struct ib_pd *ib_pd)
struct bnxt_re_dev *rdev = pd->rdev;
int rc;
+ bnxt_re_destroy_fence_mr(pd);
if (ib_pd->uobject && pd->dpi.dbr) {
struct ib_ucontext *ib_uctx = ib_pd->uobject->context;
struct bnxt_re_ucontext *ucntx;
@@ -498,6 +693,10 @@ struct ib_pd *bnxt_re_alloc_pd(struct ib_device *ibdev,
}
}
+ if (!udata)
+ if (bnxt_re_create_fence_mr(pd))
+ dev_warn(rdev_to_dev(rdev),
+ "Failed to create Fence-MR\n");
return &pd->ib_pd;
dbfail:
(void)bnxt_qplib_dealloc_pd(&rdev->qplib_res, &rdev->qplib_res.pd_tbl,
@@ -849,12 +1048,16 @@ static struct bnxt_re_qp *bnxt_re_create_shadow_qp
/* Shadow QP SQ depth should be same as QP1 RQ depth */
qp->qplib_qp.sq.max_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.sq.max_sge = 2;
+ /* Q full delta can be 1 since it is internal QP */
+ qp->qplib_qp.sq.q_full_delta = 1;
qp->qplib_qp.scq = qp1_qp->scq;
qp->qplib_qp.rcq = qp1_qp->rcq;
qp->qplib_qp.rq.max_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.rq.max_sge = qp1_qp->rq.max_sge;
+ /* Q full delta can be 1 since it is internal QP */
+ qp->qplib_qp.rq.q_full_delta = 1;
qp->qplib_qp.mtu = qp1_qp->mtu;
@@ -917,10 +1120,6 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
qp->qplib_qp.sig_type = ((qp_init_attr->sq_sig_type ==
IB_SIGNAL_ALL_WR) ? true : false);
- entries = roundup_pow_of_two(qp_init_attr->cap.max_send_wr + 1);
- qp->qplib_qp.sq.max_wqe = min_t(u32, entries,
- dev_attr->max_qp_wqes + 1);
-
qp->qplib_qp.sq.max_sge = qp_init_attr->cap.max_send_sge;
if (qp->qplib_qp.sq.max_sge > dev_attr->max_qp_sges)
qp->qplib_qp.sq.max_sge = dev_attr->max_qp_sges;
@@ -959,6 +1158,9 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
qp->qplib_qp.rq.max_wqe = min_t(u32, entries,
dev_attr->max_qp_wqes + 1);
+ qp->qplib_qp.rq.q_full_delta = qp->qplib_qp.rq.max_wqe -
+ qp_init_attr->cap.max_recv_wr;
+
qp->qplib_qp.rq.max_sge = qp_init_attr->cap.max_recv_sge;
if (qp->qplib_qp.rq.max_sge > dev_attr->max_qp_sges)
qp->qplib_qp.rq.max_sge = dev_attr->max_qp_sges;
@@ -967,6 +1169,12 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
qp->qplib_qp.mtu = ib_mtu_enum_to_int(iboe_get_mtu(rdev->netdev->mtu));
if (qp_init_attr->qp_type == IB_QPT_GSI) {
+ /* Allocate 1 more than what's provided */
+ entries = roundup_pow_of_two(qp_init_attr->cap.max_send_wr + 1);
+ qp->qplib_qp.sq.max_wqe = min_t(u32, entries,
+ dev_attr->max_qp_wqes + 1);
+ qp->qplib_qp.sq.q_full_delta = qp->qplib_qp.sq.max_wqe -
+ qp_init_attr->cap.max_send_wr;
qp->qplib_qp.rq.max_sge = dev_attr->max_qp_sges;
if (qp->qplib_qp.rq.max_sge > dev_attr->max_qp_sges)
qp->qplib_qp.rq.max_sge = dev_attr->max_qp_sges;
@@ -1006,6 +1214,22 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
}
} else {
+ /* Allocate 128 + 1 more than what's provided */
+ entries = roundup_pow_of_two(qp_init_attr->cap.max_send_wr +
+ BNXT_QPLIB_RESERVED_QP_WRS + 1);
+ qp->qplib_qp.sq.max_wqe = min_t(u32, entries,
+ dev_attr->max_qp_wqes +
+ BNXT_QPLIB_RESERVED_QP_WRS + 1);
+ qp->qplib_qp.sq.q_full_delta = BNXT_QPLIB_RESERVED_QP_WRS + 1;
+
+ /*
+ * Reserving one slot for Phantom WQE. Application can
+ * post one extra entry in this case. But allowing this to avoid
+ * unexpected Queue full condition
+ */
+
+ qp->qplib_qp.sq.q_full_delta -= 1;
+
qp->qplib_qp.max_rd_atomic = dev_attr->max_qp_rd_atom;
qp->qplib_qp.max_dest_rd_atomic = dev_attr->max_qp_init_rd_atom;
if (udata) {
@@ -1025,6 +1249,7 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
qp->ib_qp.qp_num = qp->qplib_qp.id;
spin_lock_init(&qp->sq_lock);
+ spin_lock_init(&qp->rq_lock);
if (udata) {
struct bnxt_re_qp_resp resp;
@@ -1129,48 +1354,6 @@ static enum ib_mtu __to_ib_mtu(u32 mtu)
}
}
-static int __from_ib_access_flags(int iflags)
-{
- int qflags = 0;
-
- if (iflags & IB_ACCESS_LOCAL_WRITE)
- qflags |= BNXT_QPLIB_ACCESS_LOCAL_WRITE;
- if (iflags & IB_ACCESS_REMOTE_READ)
- qflags |= BNXT_QPLIB_ACCESS_REMOTE_READ;
- if (iflags & IB_ACCESS_REMOTE_WRITE)
- qflags |= BNXT_QPLIB_ACCESS_REMOTE_WRITE;
- if (iflags & IB_ACCESS_REMOTE_ATOMIC)
- qflags |= BNXT_QPLIB_ACCESS_REMOTE_ATOMIC;
- if (iflags & IB_ACCESS_MW_BIND)
- qflags |= BNXT_QPLIB_ACCESS_MW_BIND;
- if (iflags & IB_ZERO_BASED)
- qflags |= BNXT_QPLIB_ACCESS_ZERO_BASED;
- if (iflags & IB_ACCESS_ON_DEMAND)
- qflags |= BNXT_QPLIB_ACCESS_ON_DEMAND;
- return qflags;
-};
-
-static enum ib_access_flags __to_ib_access_flags(int qflags)
-{
- enum ib_access_flags iflags = 0;
-
- if (qflags & BNXT_QPLIB_ACCESS_LOCAL_WRITE)
- iflags |= IB_ACCESS_LOCAL_WRITE;
- if (qflags & BNXT_QPLIB_ACCESS_REMOTE_WRITE)
- iflags |= IB_ACCESS_REMOTE_WRITE;
- if (qflags & BNXT_QPLIB_ACCESS_REMOTE_READ)
- iflags |= IB_ACCESS_REMOTE_READ;
- if (qflags & BNXT_QPLIB_ACCESS_REMOTE_ATOMIC)
- iflags |= IB_ACCESS_REMOTE_ATOMIC;
- if (qflags & BNXT_QPLIB_ACCESS_MW_BIND)
- iflags |= IB_ACCESS_MW_BIND;
- if (qflags & BNXT_QPLIB_ACCESS_ZERO_BASED)
- iflags |= IB_ZERO_BASED;
- if (qflags & BNXT_QPLIB_ACCESS_ON_DEMAND)
- iflags |= IB_ACCESS_ON_DEMAND;
- return iflags;
-};
-
static int bnxt_re_modify_shadow_qp(struct bnxt_re_dev *rdev,
struct bnxt_re_qp *qp1_qp,
int qp_attr_mask)
@@ -1378,11 +1561,21 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
entries = roundup_pow_of_two(qp_attr->cap.max_send_wr);
qp->qplib_qp.sq.max_wqe = min_t(u32, entries,
dev_attr->max_qp_wqes + 1);
+ qp->qplib_qp.sq.q_full_delta = qp->qplib_qp.sq.max_wqe -
+ qp_attr->cap.max_send_wr;
+ /*
+ * Reserving one slot for Phantom WQE. Some application can
+ * post one extra entry in this case. Allowing this to avoid
+ * unexpected Queue full condition
+ */
+ qp->qplib_qp.sq.q_full_delta -= 1;
qp->qplib_qp.sq.max_sge = qp_attr->cap.max_send_sge;
if (qp->qplib_qp.rq.max_wqe) {
entries = roundup_pow_of_two(qp_attr->cap.max_recv_wr);
qp->qplib_qp.rq.max_wqe =
min_t(u32, entries, dev_attr->max_qp_wqes + 1);
+ qp->qplib_qp.rq.q_full_delta = qp->qplib_qp.rq.max_wqe -
+ qp_attr->cap.max_recv_wr;
qp->qplib_qp.rq.max_sge = qp_attr->cap.max_recv_sge;
} else {
/* SRQ was used prior, just ignore the RQ caps */
@@ -1883,6 +2076,22 @@ static int bnxt_re_copy_wr_payload(struct bnxt_re_dev *rdev,
return payload_sz;
}
+static void bnxt_ud_qp_hw_stall_workaround(struct bnxt_re_qp *qp)
+{
+ if ((qp->ib_qp.qp_type == IB_QPT_UD ||
+ qp->ib_qp.qp_type == IB_QPT_GSI ||
+ qp->ib_qp.qp_type == IB_QPT_RAW_ETHERTYPE) &&
+ qp->qplib_qp.wqe_cnt == BNXT_RE_UD_QP_HW_STALL) {
+ int qp_attr_mask;
+ struct ib_qp_attr qp_attr;
+
+ qp_attr_mask = IB_QP_STATE;
+ qp_attr.qp_state = IB_QPS_RTS;
+ bnxt_re_modify_qp(&qp->ib_qp, &qp_attr, qp_attr_mask, NULL);
+ qp->qplib_qp.wqe_cnt = 0;
+ }
+}
+
static int bnxt_re_post_send_shadow_qp(struct bnxt_re_dev *rdev,
struct bnxt_re_qp *qp,
struct ib_send_wr *wr)
@@ -1928,6 +2137,7 @@ bad:
wr = wr->next;
}
bnxt_qplib_post_send_db(&qp->qplib_qp);
+ bnxt_ud_qp_hw_stall_workaround(qp);
spin_unlock_irqrestore(&qp->sq_lock, flags);
return rc;
}
@@ -2024,6 +2234,7 @@ bad:
wr = wr->next;
}
bnxt_qplib_post_send_db(&qp->qplib_qp);
+ bnxt_ud_qp_hw_stall_workaround(qp);
spin_unlock_irqrestore(&qp->sq_lock, flags);
return rc;
@@ -2071,7 +2282,10 @@ int bnxt_re_post_recv(struct ib_qp *ib_qp, struct ib_recv_wr *wr,
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_qplib_swqe wqe;
int rc = 0, payload_sz = 0;
+ unsigned long flags;
+ u32 count = 0;
+ spin_lock_irqsave(&qp->rq_lock, flags);
while (wr) {
/* House keeping */
memset(&wqe, 0, sizeof(wqe));
@@ -2100,9 +2314,21 @@ int bnxt_re_post_recv(struct ib_qp *ib_qp, struct ib_recv_wr *wr,
*bad_wr = wr;
break;
}
+
+ /* Ring DB if the RQEs posted reaches a threshold value */
+ if (++count >= BNXT_RE_RQ_WQE_THRESHOLD) {
+ bnxt_qplib_post_recv_db(&qp->qplib_qp);
+ count = 0;
+ }
+
wr = wr->next;
}
- bnxt_qplib_post_recv_db(&qp->qplib_qp);
+
+ if (count)
+ bnxt_qplib_post_recv_db(&qp->qplib_qp);
+
+ spin_unlock_irqrestore(&qp->rq_lock, flags);
+
return rc;
}
@@ -2643,12 +2869,36 @@ static void bnxt_re_process_res_ud_wc(struct ib_wc *wc,
wc->opcode = IB_WC_RECV_RDMA_WITH_IMM;
}
+static int send_phantom_wqe(struct bnxt_re_qp *qp)
+{
+ struct bnxt_qplib_qp *lib_qp = &qp->qplib_qp;
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&qp->sq_lock, flags);
+
+ rc = bnxt_re_bind_fence_mw(lib_qp);
+ if (!rc) {
+ lib_qp->sq.phantom_wqe_cnt++;
+ dev_dbg(&lib_qp->sq.hwq.pdev->dev,
+ "qp %#x sq->prod %#x sw_prod %#x phantom_wqe_cnt %d\n",
+ lib_qp->id, lib_qp->sq.hwq.prod,
+ HWQ_CMP(lib_qp->sq.hwq.prod, &lib_qp->sq.hwq),
+ lib_qp->sq.phantom_wqe_cnt);
+ }
+
+ spin_unlock_irqrestore(&qp->sq_lock, flags);
+ return rc;
+}
+
int bnxt_re_poll_cq(struct ib_cq *ib_cq, int num_entries, struct ib_wc *wc)
{
struct bnxt_re_cq *cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);
struct bnxt_re_qp *qp;
struct bnxt_qplib_cqe *cqe;
int i, ncqe, budget;
+ struct bnxt_qplib_q *sq;
+ struct bnxt_qplib_qp *lib_qp;
u32 tbl_idx;
struct bnxt_re_sqp_entries *sqp_entry = NULL;
unsigned long flags;
@@ -2661,7 +2911,21 @@ int bnxt_re_poll_cq(struct ib_cq *ib_cq, int num_entries, struct ib_wc *wc)
}
cqe = &cq->cql[0];
while (budget) {
- ncqe = bnxt_qplib_poll_cq(&cq->qplib_cq, cqe, budget);
+ lib_qp = NULL;
+ ncqe = bnxt_qplib_poll_cq(&cq->qplib_cq, cqe, budget, &lib_qp);
+ if (lib_qp) {
+ sq = &lib_qp->sq;
+ if (sq->send_phantom) {
+ qp = container_of(lib_qp,
+ struct bnxt_re_qp, qplib_qp);
+ if (send_phantom_wqe(qp) == -ENOMEM)
+ dev_err(rdev_to_dev(cq->rdev),
+ "Phantom failed! Scheduled to send again\n");
+ else
+ sq->send_phantom = false;
+ }
+ }
+
if (!ncqe)
break;
@@ -2822,6 +3086,12 @@ int bnxt_re_dereg_mr(struct ib_mr *ib_mr)
struct bnxt_re_dev *rdev = mr->rdev;
int rc;
+ rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Dereg MR failed: %#x\n", rc);
+ return rc;
+ }
+
if (mr->npages && mr->pages) {
rc = bnxt_qplib_free_fast_reg_page_list(&rdev->qplib_res,
&mr->qplib_frpl);
@@ -2829,8 +3099,6 @@ int bnxt_re_dereg_mr(struct ib_mr *ib_mr)
mr->npages = 0;
mr->pages = NULL;
}
- rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
-
if (!IS_ERR_OR_NULL(mr->ib_umem))
ib_umem_release(mr->ib_umem);
@@ -2914,97 +3182,52 @@ fail:
return ERR_PTR(rc);
}
-/* Fast Memory Regions */
-struct ib_fmr *bnxt_re_alloc_fmr(struct ib_pd *ib_pd, int mr_access_flags,
- struct ib_fmr_attr *fmr_attr)
+struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
+ struct ib_udata *udata)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
- struct bnxt_re_fmr *fmr;
+ struct bnxt_re_mw *mw;
int rc;
- if (fmr_attr->max_pages > MAX_PBL_LVL_2_PGS ||
- fmr_attr->max_maps > rdev->dev_attr.max_map_per_fmr) {
- dev_err(rdev_to_dev(rdev), "Allocate FMR exceeded Max limit");
+ mw = kzalloc(sizeof(*mw), GFP_KERNEL);
+ if (!mw)
return ERR_PTR(-ENOMEM);
- }
- fmr = kzalloc(sizeof(*fmr), GFP_KERNEL);
- if (!fmr)
- return ERR_PTR(-ENOMEM);
-
- fmr->rdev = rdev;
- fmr->qplib_fmr.pd = &pd->qplib_pd;
- fmr->qplib_fmr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
+ mw->rdev = rdev;
+ mw->qplib_mw.pd = &pd->qplib_pd;
- rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &fmr->qplib_fmr);
- if (rc)
+ mw->qplib_mw.type = (type == IB_MW_TYPE_1 ?
+ CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1 :
+ CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B);
+ rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mw->qplib_mw);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Allocate MW failed!");
goto fail;
+ }
+ mw->ib_mw.rkey = mw->qplib_mw.rkey;
- fmr->qplib_fmr.flags = __from_ib_access_flags(mr_access_flags);
- fmr->ib_fmr.lkey = fmr->qplib_fmr.lkey;
- fmr->ib_fmr.rkey = fmr->ib_fmr.lkey;
+ atomic_inc(&rdev->mw_count);
+ return &mw->ib_mw;
- atomic_inc(&rdev->mr_count);
- return &fmr->ib_fmr;
fail:
- kfree(fmr);
+ kfree(mw);
return ERR_PTR(rc);
}
-int bnxt_re_map_phys_fmr(struct ib_fmr *ib_fmr, u64 *page_list, int list_len,
- u64 iova)
+int bnxt_re_dealloc_mw(struct ib_mw *ib_mw)
{
- struct bnxt_re_fmr *fmr = container_of(ib_fmr, struct bnxt_re_fmr,
- ib_fmr);
- struct bnxt_re_dev *rdev = fmr->rdev;
+ struct bnxt_re_mw *mw = container_of(ib_mw, struct bnxt_re_mw, ib_mw);
+ struct bnxt_re_dev *rdev = mw->rdev;
int rc;
- fmr->qplib_fmr.va = iova;
- fmr->qplib_fmr.total_size = list_len * PAGE_SIZE;
-
- rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &fmr->qplib_fmr, page_list,
- list_len, true);
- if (rc)
- dev_err(rdev_to_dev(rdev), "Failed to map FMR for lkey = 0x%x!",
- fmr->ib_fmr.lkey);
- return rc;
-}
-
-int bnxt_re_unmap_fmr(struct list_head *fmr_list)
-{
- struct bnxt_re_dev *rdev;
- struct bnxt_re_fmr *fmr;
- struct ib_fmr *ib_fmr;
- int rc = 0;
-
- /* Validate each FMRs inside the fmr_list */
- list_for_each_entry(ib_fmr, fmr_list, list) {
- fmr = container_of(ib_fmr, struct bnxt_re_fmr, ib_fmr);
- rdev = fmr->rdev;
-
- if (rdev) {
- rc = bnxt_qplib_dereg_mrw(&rdev->qplib_res,
- &fmr->qplib_fmr, true);
- if (rc)
- break;
- }
+ rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &mw->qplib_mw);
+ if (rc) {
+ dev_err(rdev_to_dev(rdev), "Free MW failed: %#x\n", rc);
+ return rc;
}
- return rc;
-}
-
-int bnxt_re_dealloc_fmr(struct ib_fmr *ib_fmr)
-{
- struct bnxt_re_fmr *fmr = container_of(ib_fmr, struct bnxt_re_fmr,
- ib_fmr);
- struct bnxt_re_dev *rdev = fmr->rdev;
- int rc;
- rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &fmr->qplib_fmr);
- if (rc)
- dev_err(rdev_to_dev(rdev), "Failed to free FMR");
-
- kfree(fmr);
- atomic_dec(&rdev->mr_count);
+ kfree(mw);
+ atomic_dec(&rdev->mw_count);
return rc;
}
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index 5c3d71765454..6c160f6a5398 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -44,11 +44,23 @@ struct bnxt_re_gid_ctx {
u32 refcnt;
};
+#define BNXT_RE_FENCE_BYTES 64
+struct bnxt_re_fence_data {
+ u32 size;
+ u8 va[BNXT_RE_FENCE_BYTES];
+ dma_addr_t dma_addr;
+ struct bnxt_re_mr *mr;
+ struct ib_mw *mw;
+ struct bnxt_qplib_swqe bind_wqe;
+ u32 bind_rkey;
+};
+
struct bnxt_re_pd {
struct bnxt_re_dev *rdev;
struct ib_pd ib_pd;
struct bnxt_qplib_pd qplib_pd;
struct bnxt_qplib_dpi dpi;
+ struct bnxt_re_fence_data fence;
};
struct bnxt_re_ah {
@@ -62,6 +74,7 @@ struct bnxt_re_qp {
struct bnxt_re_dev *rdev;
struct ib_qp ib_qp;
spinlock_t sq_lock; /* protect sq */
+ spinlock_t rq_lock; /* protect rq */
struct bnxt_qplib_qp qplib_qp;
struct ib_umem *sumem;
struct ib_umem *rumem;
@@ -181,12 +194,9 @@ int bnxt_re_map_mr_sg(struct ib_mr *ib_mr, struct scatterlist *sg, int sg_nents,
struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type mr_type,
u32 max_num_sg);
int bnxt_re_dereg_mr(struct ib_mr *mr);
-struct ib_fmr *bnxt_re_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
- struct ib_fmr_attr *fmr_attr);
-int bnxt_re_map_phys_fmr(struct ib_fmr *fmr, u64 *page_list, int list_len,
- u64 iova);
-int bnxt_re_unmap_fmr(struct list_head *fmr_list);
-int bnxt_re_dealloc_fmr(struct ib_fmr *fmr);
+struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
+ struct ib_udata *udata);
+int bnxt_re_dealloc_mw(struct ib_mw *mw);
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
struct ib_udata *udata);
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 5d355401179b..1fce5e73216b 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -507,10 +507,6 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
ibdev->dereg_mr = bnxt_re_dereg_mr;
ibdev->alloc_mr = bnxt_re_alloc_mr;
ibdev->map_mr_sg = bnxt_re_map_mr_sg;
- ibdev->alloc_fmr = bnxt_re_alloc_fmr;
- ibdev->map_phys_fmr = bnxt_re_map_phys_fmr;
- ibdev->unmap_fmr = bnxt_re_unmap_fmr;
- ibdev->dealloc_fmr = bnxt_re_dealloc_fmr;
ibdev->reg_user_mr = bnxt_re_reg_user_mr;
ibdev->alloc_ucontext = bnxt_re_alloc_ucontext;
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 43d08b5e9085..f05500bcdcf1 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -284,7 +284,7 @@ int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_create_qp1 req;
- struct creq_create_qp1_resp *resp;
+ struct creq_create_qp1_resp resp;
struct bnxt_qplib_pbl *pbl;
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_q *rq = &qp->rq;
@@ -394,31 +394,12 @@ int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
req.pd_id = cpu_to_le32(qp->pd->id);
- resp = (struct creq_create_qp1_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&res->pdev->dev, "QPLIB: FP: CREATE_QP1 send failed");
- rc = -EINVAL;
- goto fail;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP1 timed out");
- rc = -ETIMEDOUT;
- goto fail;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP1 failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- rc = -EINVAL;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
goto fail;
- }
- qp->id = le32_to_cpu(resp->xid);
+
+ qp->id = le32_to_cpu(resp.xid);
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
sq->flush_in_progress = false;
rq->flush_in_progress = false;
@@ -442,7 +423,7 @@ int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct sq_send *hw_sq_send_hdr, **hw_sq_send_ptr;
struct cmdq_create_qp req;
- struct creq_create_qp_resp *resp;
+ struct creq_create_qp_resp resp;
struct bnxt_qplib_pbl *pbl;
struct sq_psn_search **psn_search_ptr;
unsigned long int psn_search, poff = 0;
@@ -627,31 +608,12 @@ int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
}
req.pd_id = cpu_to_le32(qp->pd->id);
- resp = (struct creq_create_qp_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP send failed");
- rc = -EINVAL;
- goto fail;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP timed out");
- rc = -ETIMEDOUT;
- goto fail;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- rc = -EINVAL;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
goto fail;
- }
- qp->id = le32_to_cpu(resp->xid);
+
+ qp->id = le32_to_cpu(resp.xid);
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
sq->flush_in_progress = false;
rq->flush_in_progress = false;
@@ -769,10 +731,11 @@ int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_modify_qp req;
- struct creq_modify_qp_resp *resp;
+ struct creq_modify_qp_resp resp;
u16 cmd_flags = 0, pkey;
u32 temp32[4];
u32 bmask;
+ int rc;
RCFW_CMD_PREP(req, MODIFY_QP, cmd_flags);
@@ -862,27 +825,10 @@ int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
- resp = (struct creq_modify_qp_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
qp->cur_qp_state = qp->state;
return 0;
}
@@ -891,37 +837,26 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_query_qp req;
- struct creq_query_qp_resp *resp;
+ struct creq_query_qp_resp resp;
+ struct bnxt_qplib_rcfw_sbuf *sbuf;
struct creq_query_qp_resp_sb *sb;
u16 cmd_flags = 0;
u32 temp32[4];
- int i;
+ int i, rc = 0;
RCFW_CMD_PREP(req, QUERY_QP, cmd_flags);
+ sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
+ if (!sbuf)
+ return -ENOMEM;
+ sb = sbuf->sb;
+
req.qp_cid = cpu_to_le32(qp->id);
req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
- resp = (struct creq_query_qp_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- (void **)&sb, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ (void *)sbuf, 0);
+ if (rc)
+ goto bail;
/* Extract the context from the side buffer */
qp->state = sb->en_sqd_async_notify_state &
CREQ_QUERY_QP_RESP_SB_STATE_MASK;
@@ -976,7 +911,9 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
memcpy(qp->smac, sb->src_mac, 6);
qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
- return 0;
+bail:
+ bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
+ return rc;
}
static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
@@ -1021,34 +958,18 @@ int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_destroy_qp req;
- struct creq_destroy_qp_resp *resp;
+ struct creq_destroy_qp_resp resp;
unsigned long flags;
u16 cmd_flags = 0;
+ int rc;
RCFW_CMD_PREP(req, DESTROY_QP, cmd_flags);
req.qp_cid = cpu_to_le32(qp->id);
- resp = (struct creq_destroy_qp_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
/* Must walk the associated CQs to nullified the QP ptr */
spin_lock_irqsave(&qp->scq->hwq.lock, flags);
@@ -1162,8 +1083,12 @@ int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
rc = -EINVAL;
goto done;
}
- if (HWQ_CMP((sq->hwq.prod + 1), &sq->hwq) ==
- HWQ_CMP(sq->hwq.cons, &sq->hwq)) {
+
+ if (bnxt_qplib_queue_full(sq)) {
+ dev_err(&sq->hwq.pdev->dev,
+ "QPLIB: prod = %#x cons = %#x qdepth = %#x delta = %#x",
+ sq->hwq.prod, sq->hwq.cons, sq->hwq.max_elements,
+ sq->q_full_delta);
rc = -ENOMEM;
goto done;
}
@@ -1373,6 +1298,9 @@ int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
}
sq->hwq.prod++;
+
+ qp->wqe_cnt++;
+
done:
return rc;
}
@@ -1411,8 +1339,7 @@ int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
rc = -EINVAL;
goto done;
}
- if (HWQ_CMP((rq->hwq.prod + 1), &rq->hwq) ==
- HWQ_CMP(rq->hwq.cons, &rq->hwq)) {
+ if (bnxt_qplib_queue_full(rq)) {
dev_err(&rq->hwq.pdev->dev,
"QPLIB: FP: QP (0x%x) RQ is full!", qp->id);
rc = -EINVAL;
@@ -1483,7 +1410,7 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_create_cq req;
- struct creq_create_cq_resp *resp;
+ struct creq_create_cq_resp resp;
struct bnxt_qplib_pbl *pbl;
u16 cmd_flags = 0;
int rc;
@@ -1525,30 +1452,12 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
(cq->cnq_hw_ring_id & CMDQ_CREATE_CQ_CNQ_ID_MASK) <<
CMDQ_CREATE_CQ_CNQ_ID_SFT);
- resp = (struct creq_create_cq_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ timed out");
- rc = -ETIMEDOUT;
- goto fail;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- rc = -EINVAL;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
goto fail;
- }
- cq->id = le32_to_cpu(resp->xid);
+
+ cq->id = le32_to_cpu(resp.xid);
cq->dbr_base = res->dpi_tbl.dbr_bar_reg_iomem;
cq->period = BNXT_QPLIB_QUEUE_START_PERIOD;
init_waitqueue_head(&cq->waitq);
@@ -1566,33 +1475,17 @@ int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_destroy_cq req;
- struct creq_destroy_cq_resp *resp;
+ struct creq_destroy_cq_resp resp;
u16 cmd_flags = 0;
+ int rc;
RCFW_CMD_PREP(req, DESTROY_CQ, cmd_flags);
req.cq_cid = cpu_to_le32(cq->id);
- resp = (struct creq_destroy_cq_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
bnxt_qplib_free_hwq(res->pdev, &cq->hwq);
return 0;
}
@@ -1664,14 +1557,113 @@ static int __flush_rq(struct bnxt_qplib_q *rq, struct bnxt_qplib_qp *qp,
return rc;
}
+/* Note: SQE is valid from sw_sq_cons up to cqe_sq_cons (exclusive)
+ * CQE is track from sw_cq_cons to max_element but valid only if VALID=1
+ */
+static int do_wa9060(struct bnxt_qplib_qp *qp, struct bnxt_qplib_cq *cq,
+ u32 cq_cons, u32 sw_sq_cons, u32 cqe_sq_cons)
+{
+ struct bnxt_qplib_q *sq = &qp->sq;
+ struct bnxt_qplib_swq *swq;
+ u32 peek_sw_cq_cons, peek_raw_cq_cons, peek_sq_cons_idx;
+ struct cq_base *peek_hwcqe, **peek_hw_cqe_ptr;
+ struct cq_req *peek_req_hwcqe;
+ struct bnxt_qplib_qp *peek_qp;
+ struct bnxt_qplib_q *peek_sq;
+ int i, rc = 0;
+
+ /* Normal mode */
+ /* Check for the psn_search marking before completing */
+ swq = &sq->swq[sw_sq_cons];
+ if (swq->psn_search &&
+ le32_to_cpu(swq->psn_search->flags_next_psn) & 0x80000000) {
+ /* Unmark */
+ swq->psn_search->flags_next_psn = cpu_to_le32
+ (le32_to_cpu(swq->psn_search->flags_next_psn)
+ & ~0x80000000);
+ dev_dbg(&cq->hwq.pdev->dev,
+ "FP: Process Req cq_cons=0x%x qp=0x%x sq cons sw=0x%x cqe=0x%x marked!\n",
+ cq_cons, qp->id, sw_sq_cons, cqe_sq_cons);
+ sq->condition = true;
+ sq->send_phantom = true;
+
+ /* TODO: Only ARM if the previous SQE is ARMALL */
+ bnxt_qplib_arm_cq(cq, DBR_DBR_TYPE_CQ_ARMALL);
+
+ rc = -EAGAIN;
+ goto out;
+ }
+ if (sq->condition) {
+ /* Peek at the completions */
+ peek_raw_cq_cons = cq->hwq.cons;
+ peek_sw_cq_cons = cq_cons;
+ i = cq->hwq.max_elements;
+ while (i--) {
+ peek_sw_cq_cons = HWQ_CMP((peek_sw_cq_cons), &cq->hwq);
+ peek_hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
+ peek_hwcqe = &peek_hw_cqe_ptr[CQE_PG(peek_sw_cq_cons)]
+ [CQE_IDX(peek_sw_cq_cons)];
+ /* If the next hwcqe is VALID */
+ if (CQE_CMP_VALID(peek_hwcqe, peek_raw_cq_cons,
+ cq->hwq.max_elements)) {
+ /* If the next hwcqe is a REQ */
+ if ((peek_hwcqe->cqe_type_toggle &
+ CQ_BASE_CQE_TYPE_MASK) ==
+ CQ_BASE_CQE_TYPE_REQ) {
+ peek_req_hwcqe = (struct cq_req *)
+ peek_hwcqe;
+ peek_qp = (struct bnxt_qplib_qp *)
+ ((unsigned long)
+ le64_to_cpu
+ (peek_req_hwcqe->qp_handle));
+ peek_sq = &peek_qp->sq;
+ peek_sq_cons_idx = HWQ_CMP(le16_to_cpu(
+ peek_req_hwcqe->sq_cons_idx) - 1
+ , &sq->hwq);
+ /* If the hwcqe's sq's wr_id matches */
+ if (peek_sq == sq &&
+ sq->swq[peek_sq_cons_idx].wr_id ==
+ BNXT_QPLIB_FENCE_WRID) {
+ /*
+ * Unbreak only if the phantom
+ * comes back
+ */
+ dev_dbg(&cq->hwq.pdev->dev,
+ "FP:Got Phantom CQE");
+ sq->condition = false;
+ sq->single = true;
+ rc = 0;
+ goto out;
+ }
+ }
+ /* Valid but not the phantom, so keep looping */
+ } else {
+ /* Not valid yet, just exit and wait */
+ rc = -EINVAL;
+ goto out;
+ }
+ peek_sw_cq_cons++;
+ peek_raw_cq_cons++;
+ }
+ dev_err(&cq->hwq.pdev->dev,
+ "Should not have come here! cq_cons=0x%x qp=0x%x sq cons sw=0x%x hw=0x%x",
+ cq_cons, qp->id, sw_sq_cons, cqe_sq_cons);
+ rc = -EINVAL;
+ }
+out:
+ return rc;
+}
+
static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
struct cq_req *hwcqe,
- struct bnxt_qplib_cqe **pcqe, int *budget)
+ struct bnxt_qplib_cqe **pcqe, int *budget,
+ u32 cq_cons, struct bnxt_qplib_qp **lib_qp)
{
struct bnxt_qplib_qp *qp;
struct bnxt_qplib_q *sq;
struct bnxt_qplib_cqe *cqe;
- u32 sw_cons, cqe_cons;
+ u32 sw_sq_cons, cqe_sq_cons;
+ struct bnxt_qplib_swq *swq;
int rc = 0;
qp = (struct bnxt_qplib_qp *)((unsigned long)
@@ -1683,13 +1675,13 @@ static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
}
sq = &qp->sq;
- cqe_cons = HWQ_CMP(le16_to_cpu(hwcqe->sq_cons_idx), &sq->hwq);
- if (cqe_cons > sq->hwq.max_elements) {
+ cqe_sq_cons = HWQ_CMP(le16_to_cpu(hwcqe->sq_cons_idx), &sq->hwq);
+ if (cqe_sq_cons > sq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process req reported ");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: sq_cons_idx 0x%x which exceeded max 0x%x",
- cqe_cons, sq->hwq.max_elements);
+ cqe_sq_cons, sq->hwq.max_elements);
return -EINVAL;
}
/* If we were in the middle of flushing the SQ, continue */
@@ -1698,53 +1690,74 @@ static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
/* Require to walk the sq's swq to fabricate CQEs for all previously
* signaled SWQEs due to CQE aggregation from the current sq cons
- * to the cqe_cons
+ * to the cqe_sq_cons
*/
cqe = *pcqe;
while (*budget) {
- sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
- if (sw_cons == cqe_cons)
+ sw_sq_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
+ if (sw_sq_cons == cqe_sq_cons)
+ /* Done */
break;
+
+ swq = &sq->swq[sw_sq_cons];
memset(cqe, 0, sizeof(*cqe));
cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
cqe->qp_handle = (u64)(unsigned long)qp;
cqe->src_qp = qp->id;
- cqe->wr_id = sq->swq[sw_cons].wr_id;
- cqe->type = sq->swq[sw_cons].type;
+ cqe->wr_id = swq->wr_id;
+ if (cqe->wr_id == BNXT_QPLIB_FENCE_WRID)
+ goto skip;
+ cqe->type = swq->type;
/* For the last CQE, check for status. For errors, regardless
* of the request being signaled or not, it must complete with
* the hwcqe error status
*/
- if (HWQ_CMP((sw_cons + 1), &sq->hwq) == cqe_cons &&
+ if (HWQ_CMP((sw_sq_cons + 1), &sq->hwq) == cqe_sq_cons &&
hwcqe->status != CQ_REQ_STATUS_OK) {
cqe->status = hwcqe->status;
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed Req ");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx with status 0x%x",
- sw_cons, cqe->wr_id, cqe->status);
+ sw_sq_cons, cqe->wr_id, cqe->status);
cqe++;
(*budget)--;
sq->flush_in_progress = true;
/* Must block new posting of SQ and RQ */
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
+ sq->condition = false;
+ sq->single = false;
} else {
- if (sq->swq[sw_cons].flags &
- SQ_SEND_FLAGS_SIGNAL_COMP) {
+ if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
+ /* Before we complete, do WA 9060 */
+ if (do_wa9060(qp, cq, cq_cons, sw_sq_cons,
+ cqe_sq_cons)) {
+ *lib_qp = qp;
+ goto out;
+ }
cqe->status = CQ_REQ_STATUS_OK;
cqe++;
(*budget)--;
}
}
+skip:
sq->hwq.cons++;
+ if (sq->single)
+ break;
}
+out:
*pcqe = cqe;
- if (!*budget && HWQ_CMP(sq->hwq.cons, &sq->hwq) != cqe_cons) {
+ if (HWQ_CMP(sq->hwq.cons, &sq->hwq) != cqe_sq_cons) {
/* Out of budget */
rc = -EAGAIN;
goto done;
}
+ /*
+ * Back to normal completion mode only after it has completed all of
+ * the WC for this CQE
+ */
+ sq->single = false;
if (!sq->flush_in_progress)
goto done;
flush:
@@ -2074,7 +2087,7 @@ static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
}
int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
- int num_cqes)
+ int num_cqes, struct bnxt_qplib_qp **lib_qp)
{
struct cq_base *hw_cqe, **hw_cqe_ptr;
unsigned long flags;
@@ -2099,7 +2112,8 @@ int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
case CQ_BASE_CQE_TYPE_REQ:
rc = bnxt_qplib_cq_process_req(cq,
(struct cq_req *)hw_cqe,
- &cqe, &budget);
+ &cqe, &budget,
+ sw_cons, lib_qp);
break;
case CQ_BASE_CQE_TYPE_RES_RC:
rc = bnxt_qplib_cq_process_res_rc(cq,
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index f0150f8da1e3..36b7b7db0e3f 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -88,6 +88,7 @@ struct bnxt_qplib_swq {
struct bnxt_qplib_swqe {
/* General */
+#define BNXT_QPLIB_FENCE_WRID 0x46454E43 /* "FENC" */
u64 wr_id;
u8 reqs_type;
u8 type;
@@ -216,9 +217,16 @@ struct bnxt_qplib_q {
struct scatterlist *sglist;
u32 nmap;
u32 max_wqe;
+ u16 q_full_delta;
u16 max_sge;
u32 psn;
bool flush_in_progress;
+ bool condition;
+ bool single;
+ bool send_phantom;
+ u32 phantom_wqe_cnt;
+ u32 phantom_cqe_cnt;
+ u32 next_cq_cons;
};
struct bnxt_qplib_qp {
@@ -242,6 +250,7 @@ struct bnxt_qplib_qp {
u8 timeout;
u8 retry_cnt;
u8 rnr_retry;
+ u64 wqe_cnt;
u32 min_rnr_timer;
u32 max_rd_atomic;
u32 max_dest_rd_atomic;
@@ -301,6 +310,13 @@ struct bnxt_qplib_qp {
(!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) == \
!((raw_cons) & (cp_bit)))
+static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *qplib_q)
+{
+ return HWQ_CMP((qplib_q->hwq.prod + qplib_q->q_full_delta),
+ &qplib_q->hwq) == HWQ_CMP(qplib_q->hwq.cons,
+ &qplib_q->hwq);
+}
+
struct bnxt_qplib_cqe {
u8 status;
u8 type;
@@ -432,7 +448,7 @@ int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
- int num);
+ int num, struct bnxt_qplib_qp **qp);
void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type);
void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq);
int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
index 23fb7260662b..16e42754dbec 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
@@ -39,72 +39,55 @@
#include <linux/spinlock.h>
#include <linux/pci.h>
#include <linux/prefetch.h>
+#include <linux/delay.h>
+
#include "roce_hsi.h"
#include "qplib_res.h"
#include "qplib_rcfw.h"
static void bnxt_qplib_service_creq(unsigned long data);
/* Hardware communication channel */
-int bnxt_qplib_rcfw_wait_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie)
+static int __wait_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie)
{
u16 cbit;
int rc;
- cookie &= RCFW_MAX_COOKIE_VALUE;
cbit = cookie % RCFW_MAX_OUTSTANDING_CMD;
- if (!test_bit(cbit, rcfw->cmdq_bitmap))
- dev_warn(&rcfw->pdev->dev,
- "QPLIB: CMD bit %d for cookie 0x%x is not set?",
- cbit, cookie);
-
rc = wait_event_timeout(rcfw->waitq,
!test_bit(cbit, rcfw->cmdq_bitmap),
msecs_to_jiffies(RCFW_CMD_WAIT_TIME_MS));
- if (!rc) {
- dev_warn(&rcfw->pdev->dev,
- "QPLIB: Bono Error: timeout %d msec, msg {0x%x}\n",
- RCFW_CMD_WAIT_TIME_MS, cookie);
- }
-
- return rc;
+ return rc ? 0 : -ETIMEDOUT;
};
-int bnxt_qplib_rcfw_block_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie)
+static int __block_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie)
{
- u32 count = -1;
+ u32 count = RCFW_BLOCKED_CMD_WAIT_COUNT;
u16 cbit;
- cookie &= RCFW_MAX_COOKIE_VALUE;
cbit = cookie % RCFW_MAX_OUTSTANDING_CMD;
if (!test_bit(cbit, rcfw->cmdq_bitmap))
goto done;
do {
+ mdelay(1); /* 1m sec */
bnxt_qplib_service_creq((unsigned long)rcfw);
} while (test_bit(cbit, rcfw->cmdq_bitmap) && --count);
done:
- return count;
+ return count ? 0 : -ETIMEDOUT;
};
-void *bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw,
- struct cmdq_base *req, void **crsbe,
- u8 is_block)
+static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req,
+ struct creq_base *resp, void *sb, u8 is_block)
{
- struct bnxt_qplib_crsq *crsq = &rcfw->crsq;
struct bnxt_qplib_cmdqe *cmdqe, **cmdq_ptr;
struct bnxt_qplib_hwq *cmdq = &rcfw->cmdq;
- struct bnxt_qplib_hwq *crsb = &rcfw->crsb;
- struct bnxt_qplib_crsqe *crsqe = NULL;
- struct bnxt_qplib_crsbe **crsb_ptr;
+ struct bnxt_qplib_crsq *crsqe;
u32 sw_prod, cmdq_prod;
- u8 retry_cnt = 0xFF;
- dma_addr_t dma_addr;
unsigned long flags;
u32 size, opcode;
u16 cookie, cbit;
int pg, idx;
u8 *preq;
-retry:
opcode = req->opcode;
if (!test_bit(FIRMWARE_INITIALIZED_FLAG, &rcfw->flags) &&
(opcode != CMDQ_BASE_OPCODE_QUERY_FUNC &&
@@ -112,63 +95,50 @@ retry:
dev_err(&rcfw->pdev->dev,
"QPLIB: RCFW not initialized, reject opcode 0x%x",
opcode);
- return NULL;
+ return -EINVAL;
}
if (test_bit(FIRMWARE_INITIALIZED_FLAG, &rcfw->flags) &&
opcode == CMDQ_BASE_OPCODE_INITIALIZE_FW) {
dev_err(&rcfw->pdev->dev, "QPLIB: RCFW already initialized!");
- return NULL;
+ return -EINVAL;
}
/* Cmdq are in 16-byte units, each request can consume 1 or more
* cmdqe
*/
spin_lock_irqsave(&cmdq->lock, flags);
- if (req->cmd_size > cmdq->max_elements -
- ((HWQ_CMP(cmdq->prod, cmdq) - HWQ_CMP(cmdq->cons, cmdq)) &
- (cmdq->max_elements - 1))) {
+ if (req->cmd_size >= HWQ_FREE_SLOTS(cmdq)) {
dev_err(&rcfw->pdev->dev, "QPLIB: RCFW: CMDQ is full!");
spin_unlock_irqrestore(&cmdq->lock, flags);
-
- if (!retry_cnt--)
- return NULL;
- goto retry;
+ return -EAGAIN;
}
- retry_cnt = 0xFF;
- cookie = atomic_inc_return(&rcfw->seq_num) & RCFW_MAX_COOKIE_VALUE;
+ cookie = rcfw->seq_num & RCFW_MAX_COOKIE_VALUE;
cbit = cookie % RCFW_MAX_OUTSTANDING_CMD;
if (is_block)
cookie |= RCFW_CMD_IS_BLOCKING;
+
+ set_bit(cbit, rcfw->cmdq_bitmap);
req->cookie = cpu_to_le16(cookie);
- if (test_and_set_bit(cbit, rcfw->cmdq_bitmap)) {
- dev_err(&rcfw->pdev->dev,
- "QPLIB: RCFW MAX outstanding cmd reached!");
- atomic_dec(&rcfw->seq_num);
+ crsqe = &rcfw->crsqe_tbl[cbit];
+ if (crsqe->resp) {
spin_unlock_irqrestore(&cmdq->lock, flags);
-
- if (!retry_cnt--)
- return NULL;
- goto retry;
+ return -EBUSY;
}
- /* Reserve a resp buffer slot if requested */
- if (req->resp_size && crsbe) {
- spin_lock(&crsb->lock);
- sw_prod = HWQ_CMP(crsb->prod, crsb);
- crsb_ptr = (struct bnxt_qplib_crsbe **)crsb->pbl_ptr;
- *crsbe = (void *)&crsb_ptr[get_crsb_pg(sw_prod)]
- [get_crsb_idx(sw_prod)];
- bnxt_qplib_crsb_dma_next(crsb->pbl_dma_ptr, sw_prod, &dma_addr);
- req->resp_addr = cpu_to_le64(dma_addr);
- crsb->prod++;
- spin_unlock(&crsb->lock);
-
- req->resp_size = (sizeof(struct bnxt_qplib_crsbe) +
- BNXT_QPLIB_CMDQE_UNITS - 1) /
- BNXT_QPLIB_CMDQE_UNITS;
+ memset(resp, 0, sizeof(*resp));
+ crsqe->resp = (struct creq_qp_event *)resp;
+ crsqe->resp->cookie = req->cookie;
+ crsqe->req_size = req->cmd_size;
+ if (req->resp_size && sb) {
+ struct bnxt_qplib_rcfw_sbuf *sbuf = sb;
+
+ req->resp_addr = cpu_to_le64(sbuf->dma_addr);
+ req->resp_size = (sbuf->size + BNXT_QPLIB_CMDQE_UNITS - 1) /
+ BNXT_QPLIB_CMDQE_UNITS;
}
+
cmdq_ptr = (struct bnxt_qplib_cmdqe **)cmdq->pbl_ptr;
preq = (u8 *)req;
size = req->cmd_size * BNXT_QPLIB_CMDQE_UNITS;
@@ -190,23 +160,24 @@ retry:
preq += min_t(u32, size, sizeof(*cmdqe));
size -= min_t(u32, size, sizeof(*cmdqe));
cmdq->prod++;
+ rcfw->seq_num++;
} while (size > 0);
+ rcfw->seq_num++;
+
cmdq_prod = cmdq->prod;
if (rcfw->flags & FIRMWARE_FIRST_FLAG) {
- /* The very first doorbell write is required to set this flag
- * which prompts the FW to reset its internal pointers
+ /* The very first doorbell write
+ * is required to set this flag
+ * which prompts the FW to reset
+ * its internal pointers
*/
cmdq_prod |= FIRMWARE_FIRST_FLAG;
rcfw->flags &= ~FIRMWARE_FIRST_FLAG;
}
- sw_prod = HWQ_CMP(crsq->prod, crsq);
- crsqe = &crsq->crsq[sw_prod];
- memset(crsqe, 0, sizeof(*crsqe));
- crsq->prod++;
- crsqe->req_size = req->cmd_size;
/* ring CMDQ DB */
+ wmb();
writel(cmdq_prod, rcfw->cmdq_bar_reg_iomem +
rcfw->cmdq_bar_reg_prod_off);
writel(RCFW_CMDQ_TRIG_VAL, rcfw->cmdq_bar_reg_iomem +
@@ -214,9 +185,56 @@ retry:
done:
spin_unlock_irqrestore(&cmdq->lock, flags);
/* Return the CREQ response pointer */
- return crsqe ? &crsqe->qp_event : NULL;
+ return 0;
}
+int bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw,
+ struct cmdq_base *req,
+ struct creq_base *resp,
+ void *sb, u8 is_block)
+{
+ struct creq_qp_event *evnt = (struct creq_qp_event *)resp;
+ u16 cookie;
+ u8 opcode, retry_cnt = 0xFF;
+ int rc = 0;
+
+ do {
+ opcode = req->opcode;
+ rc = __send_message(rcfw, req, resp, sb, is_block);
+ cookie = le16_to_cpu(req->cookie) & RCFW_MAX_COOKIE_VALUE;
+ if (!rc)
+ break;
+
+ if (!retry_cnt || (rc != -EAGAIN && rc != -EBUSY)) {
+ /* send failed */
+ dev_err(&rcfw->pdev->dev, "QPLIB: cmdq[%#x]=%#x send failed",
+ cookie, opcode);
+ return rc;
+ }
+ is_block ? mdelay(1) : usleep_range(500, 1000);
+
+ } while (retry_cnt--);
+
+ if (is_block)
+ rc = __block_for_resp(rcfw, cookie);
+ else
+ rc = __wait_for_resp(rcfw, cookie);
+ if (rc) {
+ /* timed out */
+ dev_err(&rcfw->pdev->dev, "QPLIB: cmdq[%#x]=%#x timedout (%d)msec",
+ cookie, opcode, RCFW_CMD_WAIT_TIME_MS);
+ return rc;
+ }
+
+ if (evnt->status) {
+ /* failed with status */
+ dev_err(&rcfw->pdev->dev, "QPLIB: cmdq[%#x]=%#x status %#x",
+ cookie, opcode, evnt->status);
+ rc = -EFAULT;
+ }
+
+ return rc;
+}
/* Completions */
static int bnxt_qplib_process_func_event(struct bnxt_qplib_rcfw *rcfw,
struct creq_func_event *func_event)
@@ -260,12 +278,12 @@ static int bnxt_qplib_process_func_event(struct bnxt_qplib_rcfw *rcfw,
static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw,
struct creq_qp_event *qp_event)
{
- struct bnxt_qplib_crsq *crsq = &rcfw->crsq;
struct bnxt_qplib_hwq *cmdq = &rcfw->cmdq;
- struct bnxt_qplib_crsqe *crsqe;
- u16 cbit, cookie, blocked = 0;
+ struct bnxt_qplib_crsq *crsqe;
unsigned long flags;
- u32 sw_cons;
+ u16 cbit, blocked = 0;
+ u16 cookie;
+ __le16 mcookie;
switch (qp_event->event) {
case CREQ_QP_EVENT_EVENT_QP_ERROR_NOTIFICATION:
@@ -275,24 +293,31 @@ static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw,
default:
/* Command Response */
spin_lock_irqsave(&cmdq->lock, flags);
- sw_cons = HWQ_CMP(crsq->cons, crsq);
- crsqe = &crsq->crsq[sw_cons];
- crsq->cons++;
- memcpy(&crsqe->qp_event, qp_event, sizeof(crsqe->qp_event));
-
- cookie = le16_to_cpu(crsqe->qp_event.cookie);
+ cookie = le16_to_cpu(qp_event->cookie);
+ mcookie = qp_event->cookie;
blocked = cookie & RCFW_CMD_IS_BLOCKING;
cookie &= RCFW_MAX_COOKIE_VALUE;
cbit = cookie % RCFW_MAX_OUTSTANDING_CMD;
+ crsqe = &rcfw->crsqe_tbl[cbit];
+ if (crsqe->resp &&
+ crsqe->resp->cookie == mcookie) {
+ memcpy(crsqe->resp, qp_event, sizeof(*qp_event));
+ crsqe->resp = NULL;
+ } else {
+ dev_err(&rcfw->pdev->dev,
+ "QPLIB: CMD %s resp->cookie = %#x, evnt->cookie = %#x",
+ crsqe->resp ? "mismatch" : "collision",
+ crsqe->resp ? crsqe->resp->cookie : 0, mcookie);
+ }
if (!test_and_clear_bit(cbit, rcfw->cmdq_bitmap))
dev_warn(&rcfw->pdev->dev,
"QPLIB: CMD bit %d was not requested", cbit);
-
cmdq->cons += crsqe->req_size;
- spin_unlock_irqrestore(&cmdq->lock, flags);
+ crsqe->req_size = 0;
+
if (!blocked)
wake_up(&rcfw->waitq);
- break;
+ spin_unlock_irqrestore(&cmdq->lock, flags);
}
return 0;
}
@@ -305,12 +330,12 @@ static void bnxt_qplib_service_creq(unsigned long data)
struct creq_base *creqe, **creq_ptr;
u32 sw_cons, raw_cons;
unsigned long flags;
- u32 type;
+ u32 type, budget = CREQ_ENTRY_POLL_BUDGET;
- /* Service the CREQ until empty */
+ /* Service the CREQ until budget is over */
spin_lock_irqsave(&creq->lock, flags);
raw_cons = creq->cons;
- while (1) {
+ while (budget > 0) {
sw_cons = HWQ_CMP(raw_cons, creq);
creq_ptr = (struct creq_base **)creq->pbl_ptr;
creqe = &creq_ptr[get_creq_pg(sw_cons)][get_creq_idx(sw_cons)];
@@ -320,15 +345,9 @@ static void bnxt_qplib_service_creq(unsigned long data)
type = creqe->type & CREQ_BASE_TYPE_MASK;
switch (type) {
case CREQ_BASE_TYPE_QP_EVENT:
- if (!bnxt_qplib_process_qp_event
- (rcfw, (struct creq_qp_event *)creqe))
- rcfw->creq_qp_event_processed++;
- else {
- dev_warn(&rcfw->pdev->dev, "QPLIB: crsqe with");
- dev_warn(&rcfw->pdev->dev,
- "QPLIB: type = 0x%x not handled",
- type);
- }
+ bnxt_qplib_process_qp_event
+ (rcfw, (struct creq_qp_event *)creqe);
+ rcfw->creq_qp_event_processed++;
break;
case CREQ_BASE_TYPE_FUNC_EVENT:
if (!bnxt_qplib_process_func_event
@@ -346,7 +365,9 @@ static void bnxt_qplib_service_creq(unsigned long data)
break;
}
raw_cons++;
+ budget--;
}
+
if (creq->cons != raw_cons) {
creq->cons = raw_cons;
CREQ_DB_REARM(rcfw->creq_bar_reg_iomem, raw_cons,
@@ -375,23 +396,16 @@ static irqreturn_t bnxt_qplib_creq_irq(int irq, void *dev_instance)
/* RCFW */
int bnxt_qplib_deinit_rcfw(struct bnxt_qplib_rcfw *rcfw)
{
- struct creq_deinitialize_fw_resp *resp;
struct cmdq_deinitialize_fw req;
+ struct creq_deinitialize_fw_resp resp;
u16 cmd_flags = 0;
+ int rc;
RCFW_CMD_PREP(req, DEINITIALIZE_FW, cmd_flags);
- resp = (struct creq_deinitialize_fw_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp)
- return -EINVAL;
-
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie)))
- return -ETIMEDOUT;
-
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie))
- return -EFAULT;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ NULL, 0);
+ if (rc)
+ return rc;
clear_bit(FIRMWARE_INITIALIZED_FLAG, &rcfw->flags);
return 0;
@@ -417,9 +431,10 @@ static int __get_pbl_pg_idx(struct bnxt_qplib_pbl *pbl)
int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw,
struct bnxt_qplib_ctx *ctx, int is_virtfn)
{
- struct creq_initialize_fw_resp *resp;
struct cmdq_initialize_fw req;
+ struct creq_initialize_fw_resp resp;
u16 cmd_flags = 0, level;
+ int rc;
RCFW_CMD_PREP(req, INITIALIZE_FW, cmd_flags);
@@ -482,37 +497,19 @@ int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw,
skip_ctx_setup:
req.stat_ctx_id = cpu_to_le32(ctx->stats.fw_id);
- resp = (struct creq_initialize_fw_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev,
- "QPLIB: RCFW: INITIALIZE_FW send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev,
- "QPLIB: RCFW: INITIALIZE_FW timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev,
- "QPLIB: RCFW: INITIALIZE_FW failed");
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ NULL, 0);
+ if (rc)
+ return rc;
set_bit(FIRMWARE_INITIALIZED_FLAG, &rcfw->flags);
return 0;
}
void bnxt_qplib_free_rcfw_channel(struct bnxt_qplib_rcfw *rcfw)
{
- bnxt_qplib_free_hwq(rcfw->pdev, &rcfw->crsb);
- kfree(rcfw->crsq.crsq);
+ kfree(rcfw->crsqe_tbl);
bnxt_qplib_free_hwq(rcfw->pdev, &rcfw->cmdq);
bnxt_qplib_free_hwq(rcfw->pdev, &rcfw->creq);
-
rcfw->pdev = NULL;
}
@@ -539,21 +536,11 @@ int bnxt_qplib_alloc_rcfw_channel(struct pci_dev *pdev,
goto fail;
}
- rcfw->crsq.max_elements = rcfw->cmdq.max_elements;
- rcfw->crsq.crsq = kcalloc(rcfw->crsq.max_elements,
- sizeof(*rcfw->crsq.crsq), GFP_KERNEL);
- if (!rcfw->crsq.crsq)
+ rcfw->crsqe_tbl = kcalloc(rcfw->cmdq.max_elements,
+ sizeof(*rcfw->crsqe_tbl), GFP_KERNEL);
+ if (!rcfw->crsqe_tbl)
goto fail;
- rcfw->crsb.max_elements = BNXT_QPLIB_CRSBE_MAX_CNT;
- if (bnxt_qplib_alloc_init_hwq(rcfw->pdev, &rcfw->crsb, NULL, 0,
- &rcfw->crsb.max_elements,
- BNXT_QPLIB_CRSBE_UNITS, 0, PAGE_SIZE,
- HWQ_TYPE_CTX)) {
- dev_err(&rcfw->pdev->dev,
- "QPLIB: HW channel CRSB allocation failed");
- goto fail;
- }
return 0;
fail:
@@ -606,7 +593,7 @@ int bnxt_qplib_enable_rcfw_channel(struct pci_dev *pdev,
int rc;
/* General */
- atomic_set(&rcfw->seq_num, 0);
+ rcfw->seq_num = 0;
rcfw->flags = FIRMWARE_FIRST_FLAG;
bmap_size = BITS_TO_LONGS(RCFW_MAX_OUTSTANDING_CMD *
sizeof(unsigned long));
@@ -636,10 +623,6 @@ int bnxt_qplib_enable_rcfw_channel(struct pci_dev *pdev,
rcfw->cmdq_bar_reg_trig_off = RCFW_COMM_TRIG_OFFSET;
- /* CRSQ */
- rcfw->crsq.prod = 0;
- rcfw->crsq.cons = 0;
-
/* CREQ */
rcfw->creq_bar_reg = RCFW_COMM_CONS_PCI_BAR_REGION;
res_base = pci_resource_start(pdev, rcfw->creq_bar_reg);
@@ -692,3 +675,34 @@ int bnxt_qplib_enable_rcfw_channel(struct pci_dev *pdev,
__iowrite32_copy(rcfw->cmdq_bar_reg_iomem, &init, sizeof(init) / 4);
return 0;
}
+
+struct bnxt_qplib_rcfw_sbuf *bnxt_qplib_rcfw_alloc_sbuf(
+ struct bnxt_qplib_rcfw *rcfw,
+ u32 size)
+{
+ struct bnxt_qplib_rcfw_sbuf *sbuf;
+
+ sbuf = kzalloc(sizeof(*sbuf), GFP_ATOMIC);
+ if (!sbuf)
+ return NULL;
+
+ sbuf->size = size;
+ sbuf->sb = dma_zalloc_coherent(&rcfw->pdev->dev, sbuf->size,
+ &sbuf->dma_addr, GFP_ATOMIC);
+ if (!sbuf->sb)
+ goto bail;
+
+ return sbuf;
+bail:
+ kfree(sbuf);
+ return NULL;
+}
+
+void bnxt_qplib_rcfw_free_sbuf(struct bnxt_qplib_rcfw *rcfw,
+ struct bnxt_qplib_rcfw_sbuf *sbuf)
+{
+ if (sbuf->sb)
+ dma_free_coherent(&rcfw->pdev->dev, sbuf->size,
+ sbuf->sb, sbuf->dma_addr);
+ kfree(sbuf);
+}
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
index d3567d75bf58..09ce121770cd 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
@@ -73,6 +73,7 @@
#define RCFW_MAX_OUTSTANDING_CMD BNXT_QPLIB_CMDQE_MAX_CNT
#define RCFW_MAX_COOKIE_VALUE 0x7FFF
#define RCFW_CMD_IS_BLOCKING 0x8000
+#define RCFW_BLOCKED_CMD_WAIT_COUNT 0x4E20
/* Cmdq contains a fix number of a 16-Byte slots */
struct bnxt_qplib_cmdqe {
@@ -94,32 +95,6 @@ struct bnxt_qplib_crsbe {
u8 data[1024];
};
-/* CRSQ SB */
-#define BNXT_QPLIB_CRSBE_MAX_CNT 4
-#define BNXT_QPLIB_CRSBE_UNITS sizeof(struct bnxt_qplib_crsbe)
-#define BNXT_QPLIB_CRSBE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_CRSBE_UNITS)
-
-#define MAX_CRSB_IDX (BNXT_QPLIB_CRSBE_MAX_CNT - 1)
-#define MAX_CRSB_IDX_PER_PG (BNXT_QPLIB_CRSBE_CNT_PER_PG - 1)
-
-static inline u32 get_crsb_pg(u32 val)
-{
- return (val & ~MAX_CRSB_IDX_PER_PG) / BNXT_QPLIB_CRSBE_CNT_PER_PG;
-}
-
-static inline u32 get_crsb_idx(u32 val)
-{
- return val & MAX_CRSB_IDX_PER_PG;
-}
-
-static inline void bnxt_qplib_crsb_dma_next(dma_addr_t *pg_map_arr,
- u32 prod, dma_addr_t *dma_addr)
-{
- *dma_addr = pg_map_arr[(prod) / BNXT_QPLIB_CRSBE_CNT_PER_PG];
- *dma_addr += ((prod) % BNXT_QPLIB_CRSBE_CNT_PER_PG) *
- BNXT_QPLIB_CRSBE_UNITS;
-}
-
/* CREQ */
/* Allocate 1 per QP for async error notification for now */
#define BNXT_QPLIB_CREQE_MAX_CNT (64 * 1024)
@@ -158,17 +133,19 @@ static inline u32 get_creq_idx(u32 val)
#define CREQ_DB(db, raw_cons, cp_bit) \
writel(CREQ_DB_CP_FLAGS | ((raw_cons) & ((cp_bit) - 1)), db)
+#define CREQ_ENTRY_POLL_BUDGET 0x100
+
/* HWQ */
-struct bnxt_qplib_crsqe {
- struct creq_qp_event qp_event;
+
+struct bnxt_qplib_crsq {
+ struct creq_qp_event *resp;
u32 req_size;
};
-struct bnxt_qplib_crsq {
- struct bnxt_qplib_crsqe *crsq;
- u32 prod;
- u32 cons;
- u32 max_elements;
+struct bnxt_qplib_rcfw_sbuf {
+ void *sb;
+ dma_addr_t dma_addr;
+ u32 size;
};
/* RCFW Communication Channels */
@@ -185,7 +162,7 @@ struct bnxt_qplib_rcfw {
wait_queue_head_t waitq;
int (*aeq_handler)(struct bnxt_qplib_rcfw *,
struct creq_func_event *);
- atomic_t seq_num;
+ u32 seq_num;
/* Bar region info */
void __iomem *cmdq_bar_reg_iomem;
@@ -203,8 +180,7 @@ struct bnxt_qplib_rcfw {
/* Actual Cmd and Resp Queues */
struct bnxt_qplib_hwq cmdq;
- struct bnxt_qplib_crsq crsq;
- struct bnxt_qplib_hwq crsb;
+ struct bnxt_qplib_crsq *crsqe_tbl;
};
void bnxt_qplib_free_rcfw_channel(struct bnxt_qplib_rcfw *rcfw);
@@ -219,11 +195,14 @@ int bnxt_qplib_enable_rcfw_channel(struct pci_dev *pdev,
(struct bnxt_qplib_rcfw *,
struct creq_func_event *));
-int bnxt_qplib_rcfw_block_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie);
-int bnxt_qplib_rcfw_wait_for_resp(struct bnxt_qplib_rcfw *rcfw, u16 cookie);
-void *bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw,
- struct cmdq_base *req, void **crsbe,
- u8 is_block);
+struct bnxt_qplib_rcfw_sbuf *bnxt_qplib_rcfw_alloc_sbuf(
+ struct bnxt_qplib_rcfw *rcfw,
+ u32 size);
+void bnxt_qplib_rcfw_free_sbuf(struct bnxt_qplib_rcfw *rcfw,
+ struct bnxt_qplib_rcfw_sbuf *sbuf);
+int bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw,
+ struct cmdq_base *req, struct creq_base *resp,
+ void *sbuf, u8 is_block);
int bnxt_qplib_deinit_rcfw(struct bnxt_qplib_rcfw *rcfw);
int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw,
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h
index 6277d802ca4b..2e4855509719 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h
@@ -48,6 +48,10 @@ extern const struct bnxt_qplib_gid bnxt_qplib_gid_zero;
#define HWQ_CMP(idx, hwq) ((idx) & ((hwq)->max_elements - 1))
+#define HWQ_FREE_SLOTS(hwq) (hwq->max_elements - \
+ ((HWQ_CMP(hwq->prod, hwq)\
+ - HWQ_CMP(hwq->cons, hwq))\
+ & (hwq->max_elements - 1)))
enum bnxt_qplib_hwq_type {
HWQ_TYPE_CTX,
HWQ_TYPE_QUEUE,
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
index 7b31eccedf11..fde18cf0e406 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -55,37 +55,30 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
struct bnxt_qplib_dev_attr *attr)
{
struct cmdq_query_func req;
- struct creq_query_func_resp *resp;
+ struct creq_query_func_resp resp;
+ struct bnxt_qplib_rcfw_sbuf *sbuf;
struct creq_query_func_resp_sb *sb;
u16 cmd_flags = 0;
u32 temp;
u8 *tqm_alloc;
- int i;
+ int i, rc = 0;
RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
- req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
- resp = (struct creq_query_func_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void **)&sb,
- 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC failed ");
+ sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
+ if (!sbuf) {
dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
+ "QPLIB: SP: QUERY_FUNC alloc side buffer failed");
+ return -ENOMEM;
}
+
+ sb = sbuf->sb;
+ req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ (void *)sbuf, 0);
+ if (rc)
+ goto bail;
+
/* Extract the context from the side buffer */
attr->max_qp = le32_to_cpu(sb->max_qp);
attr->max_qp_rd_atom =
@@ -95,6 +88,11 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
+ /*
+ * 128 WQEs needs to be reserved for the HW (8916). Prevent
+ * reporting the max number
+ */
+ attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
attr->max_qp_sges = sb->max_sge;
attr->max_cq = le32_to_cpu(sb->max_cq);
attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
@@ -130,7 +128,10 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
}
- return 0;
+
+bail:
+ bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
+ return rc;
}
/* SGID */
@@ -178,8 +179,9 @@ int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
/* Remove GID from the SGID table */
if (update) {
struct cmdq_delete_gid req;
- struct creq_delete_gid_resp *resp;
+ struct creq_delete_gid_resp resp;
u16 cmd_flags = 0;
+ int rc;
RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
if (sgid_tbl->hw_id[index] == 0xFFFF) {
@@ -188,31 +190,10 @@ int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
return -EINVAL;
}
req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
- resp = (struct creq_delete_gid_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, NULL,
- 0);
- if (!resp) {
- dev_err(&res->pdev->dev,
- "QPLIB: SP: DELETE_GID send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw,
- le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&res->pdev->dev,
- "QPLIB: SP: DELETE_GID timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&res->pdev->dev,
- "QPLIB: SP: DELETE_GID failed ");
- dev_err(&res->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
}
memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
sizeof(bnxt_qplib_gid_zero));
@@ -234,7 +215,7 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
struct bnxt_qplib_res,
sgid_tbl);
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
- int i, free_idx, rc = 0;
+ int i, free_idx;
if (!sgid_tbl) {
dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
@@ -266,10 +247,11 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
}
if (update) {
struct cmdq_add_gid req;
- struct creq_add_gid_resp *resp;
+ struct creq_add_gid_resp resp;
u16 cmd_flags = 0;
u32 temp32[4];
u16 temp16[3];
+ int rc;
RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
@@ -290,31 +272,11 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
req.src_mac[1] = cpu_to_be16(temp16[1]);
req.src_mac[2] = cpu_to_be16(temp16[2]);
- resp = (struct creq_add_gid_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&res->pdev->dev,
- "QPLIB: SP: ADD_GID send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw,
- le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&res->pdev->dev,
- "QPIB: SP: ADD_GID timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&res->pdev->dev, "QPLIB: SP: ADD_GID failed ");
- dev_err(&res->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
- sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp->xid);
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
+ sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
}
/* Add GID to the sgid_tbl */
memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
@@ -325,7 +287,7 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
*index = free_idx;
/* unlock */
- return rc;
+ return 0;
}
/* pkeys */
@@ -422,10 +384,11 @@ int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_create_ah req;
- struct creq_create_ah_resp *resp;
+ struct creq_create_ah_resp resp;
u16 cmd_flags = 0;
u32 temp32[4];
u16 temp16[3];
+ int rc;
RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
@@ -450,28 +413,12 @@ int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
req.dest_mac[1] = cpu_to_le16(temp16[1]);
req.dest_mac[2] = cpu_to_le16(temp16[2]);
- resp = (struct creq_create_ah_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 1);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
- ah->id = le32_to_cpu(resp->xid);
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ NULL, 1);
+ if (rc)
+ return rc;
+
+ ah->id = le32_to_cpu(resp.xid);
return 0;
}
@@ -479,35 +426,19 @@ int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_destroy_ah req;
- struct creq_destroy_ah_resp *resp;
+ struct creq_destroy_ah_resp resp;
u16 cmd_flags = 0;
+ int rc;
/* Clean up the AH table in the device */
RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
req.ah_cid = cpu_to_le32(ah->id);
- resp = (struct creq_destroy_ah_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 1);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ NULL, 1);
+ if (rc)
+ return rc;
return 0;
}
@@ -516,8 +447,9 @@ int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_deallocate_key req;
- struct creq_deallocate_key_resp *resp;
+ struct creq_deallocate_key_resp resp;
u16 cmd_flags = 0;
+ int rc;
if (mrw->lkey == 0xFFFFFFFF) {
dev_info(&res->pdev->dev,
@@ -536,27 +468,11 @@ int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
else
req.key = cpu_to_le32(mrw->lkey);
- resp = (struct creq_deallocate_key_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR failed ");
- dev_err(&res->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
+ NULL, 0);
+ if (rc)
+ return rc;
+
/* Free the qplib's MRW memory */
if (mrw->hwq.max_elements)
bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
@@ -568,9 +484,10 @@ int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_allocate_mrw req;
- struct creq_allocate_mrw_resp *resp;
+ struct creq_allocate_mrw_resp resp;
u16 cmd_flags = 0;
unsigned long tmp;
+ int rc;
RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
@@ -584,33 +501,17 @@ int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
tmp = (unsigned long)mrw;
req.mrw_handle = cpu_to_le64(tmp);
- resp = (struct creq_allocate_mrw_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, 0);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW send failed");
- return -EINVAL;
- }
- if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
- /* Cmd timed out */
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
+ if (rc)
+ return rc;
+
if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
(mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
(mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
- mrw->rkey = le32_to_cpu(resp->xid);
+ mrw->rkey = le32_to_cpu(resp.xid);
else
- mrw->lkey = le32_to_cpu(resp->xid);
+ mrw->lkey = le32_to_cpu(resp.xid);
return 0;
}
@@ -619,40 +520,17 @@ int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_deregister_mr req;
- struct creq_deregister_mr_resp *resp;
+ struct creq_deregister_mr_resp resp;
u16 cmd_flags = 0;
int rc;
RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
req.lkey = cpu_to_le32(mrw->lkey);
- resp = (struct creq_deregister_mr_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, block);
- if (!resp) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: DEREG_MR send failed");
- return -EINVAL;
- }
- if (block)
- rc = bnxt_qplib_rcfw_block_for_resp(rcfw,
- le16_to_cpu(req.cookie));
- else
- rc = bnxt_qplib_rcfw_wait_for_resp(rcfw,
- le16_to_cpu(req.cookie));
- if (!rc) {
- /* Cmd timed out */
- dev_err(&res->pdev->dev, "QPLIB: SP: DEREG_MR timed out");
- return -ETIMEDOUT;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&rcfw->pdev->dev, "QPLIB: SP: DEREG_MR failed ");
- dev_err(&rcfw->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, block);
+ if (rc)
+ return rc;
/* Free the qplib's MR memory */
if (mrw->hwq.max_elements) {
@@ -669,7 +547,7 @@ int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_register_mr req;
- struct creq_register_mr_resp *resp;
+ struct creq_register_mr_resp resp;
u16 cmd_flags = 0, level;
int pg_ptrs, pages, i, rc;
dma_addr_t **pbl_ptr;
@@ -730,36 +608,11 @@ int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
req.key = cpu_to_le32(mr->lkey);
req.mr_size = cpu_to_le64(mr->total_size);
- resp = (struct creq_register_mr_resp *)
- bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
- NULL, block);
- if (!resp) {
- dev_err(&res->pdev->dev, "SP: REG_MR send failed");
- rc = -EINVAL;
- goto fail;
- }
- if (block)
- rc = bnxt_qplib_rcfw_block_for_resp(rcfw,
- le16_to_cpu(req.cookie));
- else
- rc = bnxt_qplib_rcfw_wait_for_resp(rcfw,
- le16_to_cpu(req.cookie));
- if (!rc) {
- /* Cmd timed out */
- dev_err(&res->pdev->dev, "SP: REG_MR timed out");
- rc = -ETIMEDOUT;
- goto fail;
- }
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&res->pdev->dev, "QPLIB: SP: REG_MR failed ");
- dev_err(&res->pdev->dev,
- "QPLIB: SP: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- rc = -EINVAL;
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, block);
+ if (rc)
goto fail;
- }
+
return 0;
fail:
@@ -804,35 +657,15 @@ int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct cmdq_map_tc_to_cos req;
- struct creq_map_tc_to_cos_resp *resp;
+ struct creq_map_tc_to_cos_resp resp;
u16 cmd_flags = 0;
- int tleft;
+ int rc = 0;
RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
req.cos0 = cpu_to_le16(cids[0]);
req.cos1 = cpu_to_le16(cids[1]);
- resp = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, NULL, 0);
- if (!resp) {
- dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS send failed");
- return -EINVAL;
- }
-
- tleft = bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie));
- if (!tleft) {
- dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS timed out");
- return -ETIMEDOUT;
- }
-
- if (resp->status ||
- le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
- dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS failed ");
- dev_err(&res->pdev->dev,
- "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
- resp->status, le16_to_cpu(req.cookie),
- le16_to_cpu(resp->cookie));
- return -EINVAL;
- }
-
+ rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+ (void *)&resp, NULL, 0);
return 0;
}
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
index 1442a617e968..a543f959098b 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
@@ -40,6 +40,8 @@
#ifndef __BNXT_QPLIB_SP_H__
#define __BNXT_QPLIB_SP_H__
+#define BNXT_QPLIB_RESERVED_QP_WRS 128
+
struct bnxt_qplib_dev_attr {
char fw_ver[32];
u16 max_sgid;
generated by cgit (git 2.34.1) at 2024-05-26 08:27:58 +0000