linux-kernel - [PATCH 5.16 0480/1039] RDMA/qedr: Fix reporting max_{send/recv}

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Date:   Mon, 24 Jan 2022 19:37:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Kamal Heib <kamalheib1@...il.com>,
        Michal Kalderon  <michal.kalderon@...vell.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0480/1039] RDMA/qedr: Fix reporting max_{send/recv}_wr attrs

From: Kamal Heib <kamalheib1@...il.com>

[ Upstream commit b1a4da64bfc189510e08df1ccb1c589e667dc7a3 ]

Fix the wrongly reported max_send_wr and max_recv_wr attributes for user
QP by making sure to save their valuse on QP creation, so when query QP is
called the attributes will be reported correctly.

Fixes: cecbcddf6461 ("qedr: Add support for QP verbs")
Link: https://lore.kernel.org/r/20211206201314.124947-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@...il.com>
Acked-by: Michal Kalderon <michal.kalderon@...vell.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/qedr/verbs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 9100009f0a23d..a53476653b0d9 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1931,6 +1931,7 @@ static int qedr_create_user_qp(struct qedr_dev *dev,
 	/* db offset was calculated in copy_qp_uresp, now set in the user q */
 	if (qedr_qp_has_sq(qp)) {
 		qp->usq.db_addr = ctx->dpi_addr + uresp.sq_db_offset;
+		qp->sq.max_wr = attrs->cap.max_send_wr;
 		rc = qedr_db_recovery_add(dev, qp->usq.db_addr,
 					  &qp->usq.db_rec_data->db_data,
 					  DB_REC_WIDTH_32B,
@@ -1941,6 +1942,7 @@ static int qedr_create_user_qp(struct qedr_dev *dev,
 
 	if (qedr_qp_has_rq(qp)) {
 		qp->urq.db_addr = ctx->dpi_addr + uresp.rq_db_offset;
+		qp->rq.max_wr = attrs->cap.max_recv_wr;
 		rc = qedr_db_recovery_add(dev, qp->urq.db_addr,
 					  &qp->urq.db_rec_data->db_data,
 					  DB_REC_WIDTH_32B,
-- 
2.34.1