RDMA/bnxt_re: Cache MSIx info to a local structure

[ Upstream commit 31bad59805c388f92f3a13174a149c2228301c15 ]

L2 driver allocates the vectors for RoCE and pass it through the
en_dev structure to RoCE. During probe, cache the MSIx related
info to a local structure.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/1731577748-1804-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Stable-dep-of: f0df225d12fc ("RDMA/bnxt_re: Add sanity checks on rdev validity")
Signed-off-by: Sasha Levin <sashal@kernel.org>

2 files changed, 11 insertions, 8 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index 2a5cb6640286..784dc0fbd526 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -157,6 +157,7 @@ struct bnxt_re_pacing {
 #define BNXT_RE_MIN_MSIX		2
 #define BNXT_RE_MAX_MSIX		BNXT_MAX_ROCE_MSIX
 struct bnxt_re_nq_record {
+	struct bnxt_msix_entry	msix_entries[BNXT_RE_MAX_MSIX];
 	struct bnxt_qplib_nq	nq[BNXT_RE_MAX_MSIX];
 	int			num_msix;
 };
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 310a80962d0e..08cc9ea17527 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -334,7 +334,7 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent)
 	int indx, rc;
 
 	rdev = en_info->rdev;
-	msix_ent = rdev->en_dev->msix_entries;
+	msix_ent = rdev->nqr->msix_entries;
 	rcfw = &rdev->rcfw;
 	if (!ent) {
 		/* Not setting the f/w timeout bit in rcfw.
@@ -350,7 +350,7 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent)
 	 * in device sctructure.
 	 */
 	for (indx = 0; indx < rdev->nqr->num_msix; indx++)
-		rdev->en_dev->msix_entries[indx].vector = ent[indx].vector;
+		rdev->nqr->msix_entries[indx].vector = ent[indx].vector;
 
 	rc = bnxt_qplib_rcfw_start_irq(rcfw, msix_ent[BNXT_RE_AEQ_IDX].vector,
 				       false);
@@ -1292,9 +1292,9 @@ static int bnxt_re_init_res(struct bnxt_re_dev *rdev)
 	bnxt_qplib_init_res(&rdev->qplib_res);
 
 	for (i = 1; i < rdev->nqr->num_msix ; i++) {
-		db_offt = rdev->en_dev->msix_entries[i].db_offset;
+		db_offt = rdev->nqr->msix_entries[i].db_offset;
 		rc = bnxt_qplib_enable_nq(rdev->en_dev->pdev, &rdev->nqr->nq[i - 1],
-					  i - 1, rdev->en_dev->msix_entries[i].vector,
+					  i - 1, rdev->nqr->msix_entries[i].vector,
 					  db_offt, &bnxt_re_cqn_handler,
 					  &bnxt_re_srqn_handler);
 		if (rc) {
@@ -1381,7 +1381,7 @@ static int bnxt_re_alloc_res(struct bnxt_re_dev *rdev)
 		rattr.type = type;
 		rattr.mode = RING_ALLOC_REQ_INT_MODE_MSIX;
 		rattr.depth = BNXT_QPLIB_NQE_MAX_CNT - 1;
-		rattr.lrid = rdev->en_dev->msix_entries[i + 1].ring_idx;
+		rattr.lrid = rdev->nqr->msix_entries[i + 1].ring_idx;
 		rc = bnxt_re_net_ring_alloc(rdev, &rattr, &nq->ring_id);
 		if (rc) {
 			ibdev_err(&rdev->ibdev,
@@ -1698,6 +1698,8 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 op_type)
 		return rc;
 	}
 	rdev->nqr->num_msix = rdev->en_dev->ulp_tbl->msix_requested;
+	memcpy(rdev->nqr->msix_entries, rdev->en_dev->msix_entries,
+	       sizeof(struct bnxt_msix_entry) * rdev->nqr->num_msix);
 
 	/* Check whether VF or PF */
 	bnxt_re_get_sriov_func_type(rdev);
@@ -1723,14 +1725,14 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 op_type)
 	rattr.type = type;
 	rattr.mode = RING_ALLOC_REQ_INT_MODE_MSIX;
 	rattr.depth = BNXT_QPLIB_CREQE_MAX_CNT - 1;
-	rattr.lrid = rdev->en_dev->msix_entries[BNXT_RE_AEQ_IDX].ring_idx;
+	rattr.lrid = rdev->nqr->msix_entries[BNXT_RE_AEQ_IDX].ring_idx;
 	rc = bnxt_re_net_ring_alloc(rdev, &rattr, &creq->ring_id);
 	if (rc) {
 		ibdev_err(&rdev->ibdev, "Failed to allocate CREQ: %#x\n", rc);
 		goto free_rcfw;
 	}
-	db_offt = rdev->en_dev->msix_entries[BNXT_RE_AEQ_IDX].db_offset;
-	vid = rdev->en_dev->msix_entries[BNXT_RE_AEQ_IDX].vector;
+	db_offt = rdev->nqr->msix_entries[BNXT_RE_AEQ_IDX].db_offset;
+	vid = rdev->nqr->msix_entries[BNXT_RE_AEQ_IDX].vector;
 	rc = bnxt_qplib_enable_rcfw_channel(&rdev->rcfw,
 					    vid, db_offt,
 					    &bnxt_re_aeq_handler);