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authorKalesh AP2024-01-22 20:54:33 -0800
committerLeon Romanovsky2024-01-25 12:04:39 +0200
commit282fd66e2ef6e5d72b8fcd77efb2b282d2569464 (patch)
tree049ebcad20db8ac9e90d944e9465d523dbc949d4
parent809aa64ebff51eb170ee31a95f83b2d21efa32e2 (diff)
RDMA/bnxt_re: Avoid creating fence MR for newer adapters
Limit the usage of fence MR to adapters older than Gen P5 products. Fixes: 1801d87b3598 ("RDMA/bnxt_re: Support new 5760X P7 devices") Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Bhargava Chenna Marreddy <bhargava.marreddy@broadcom.com> Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Link: https://lore.kernel.org/r/1705985677-15551-2-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
-rw-r--r--drivers/infiniband/hw/bnxt_re/ib_verbs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 824349659d69..e1ea49263145 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -401,6 +401,10 @@ 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;
+ struct bnxt_re_dev *rdev = pd->rdev;
+
+ if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
+ return;
memset(wqe, 0, sizeof(*wqe));
wqe->type = BNXT_QPLIB_SWQE_TYPE_BIND_MW;
@@ -455,6 +459,9 @@ static void bnxt_re_destroy_fence_mr(struct bnxt_re_pd *pd)
struct device *dev = &rdev->en_dev->pdev->dev;
struct bnxt_re_mr *mr = fence->mr;
+ if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
+ return;
+
if (fence->mw) {
bnxt_re_dealloc_mw(fence->mw);
fence->mw = NULL;
@@ -486,6 +493,9 @@ static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
struct ib_mw *mw;
int rc;
+ if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
+ return 0;
+
dma_addr = dma_map_single(dev, fence->va, BNXT_RE_FENCE_BYTES,
DMA_BIDIRECTIONAL);
rc = dma_mapping_error(dev, dma_addr);