From a0ceed736c88d4f105f5951612f45ea68b2c4c35 Mon Sep 17 00:00:00 2001 From: Kashyap Desai Date: Wed, 4 Dec 2024 13:24:14 +0530 Subject: [PATCH] RDMA/bnxt_re: Avoid sending the modify QP workaround for latest adapters [ Upstream commit 064c22408a73b9e945139b64614c534cbbefb591 ] The workaround to modify the UD QP from RTS to RTS is required only for older adapters. Issuing this for latest adapters can caus some unexpected behavior. Fix it Fixes: 1801d87b3598 ("RDMA/bnxt_re: Support new 5760X P7 devices") Signed-off-by: Kashyap Desai Signed-off-by: Selvin Xavier Link: https://patch.msgid.link/20241204075416.478431-4-kalesh-anakkur.purayil@broadcom.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/bnxt_re/ib_verbs.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index df5897260601..fb6f15bb9d4f 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -2710,7 +2710,8 @@ bad: wr = wr->next; } bnxt_qplib_post_send_db(&qp->qplib_qp); - bnxt_ud_qp_hw_stall_workaround(qp); + if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx)) + bnxt_ud_qp_hw_stall_workaround(qp); spin_unlock_irqrestore(&qp->sq_lock, flags); return rc; } @@ -2822,7 +2823,8 @@ bad: wr = wr->next; } bnxt_qplib_post_send_db(&qp->qplib_qp); - bnxt_ud_qp_hw_stall_workaround(qp); + if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx)) + bnxt_ud_qp_hw_stall_workaround(qp); spin_unlock_irqrestore(&qp->sq_lock, flags); return rc;