This is a note to let you know that I've just added the patch titled
RDMA/irdma: Set the CQ read threshold for GEN 1
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma-irdma-set-the-cq-read-threshold-for-gen-1.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1b570be7c5c105c4830026c8468baabea9d356f5
Author: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Date: Wed Jan 31 17:38:48 2024 -0600
RDMA/irdma: Set the CQ read threshold for GEN 1
[ Upstream commit 666047f3ece9f991774c1fe9b223139a9ef8908d ]
The CQ shadow read threshold is currently not set for GEN 2. This could
cause an invalid CQ overflow condition, so remove the GEN check that
exclused GEN 1.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
Signed-off-by: Sindhu Devale <sindhu.devale@xxxxxxxxx>
Link: https://lore.kernel.org/r/20240131233849.400285-4-sindhu.devale@xxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
index c15af65cba333..d43833e141a02 100644
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -2076,9 +2076,8 @@ static int irdma_create_cq(struct ib_cq *ibcq,
info.cq_base_pa = iwcq->kmem.pa;
}
- if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
- info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
- (u32)IRDMA_MAX_CQ_READ_THRESH);
+ info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
+ (u32)IRDMA_MAX_CQ_READ_THRESH);
if (irdma_sc_cq_init(cq, &info)) {
ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n");
