This is a note to let you know that I've just added the patch titled
RDMA/mlx5: Initiate dropless RQ for RAW Ethernet functions
to the 6.3-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-mlx5-initiate-dropless-rq-for-raw-ethernet-func.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2d4a8ea008460c30ee0c6a0fa3a8785a9260464d
Author: Maher Sanalla <msanalla@xxxxxxxxxx>
Date: Mon Jun 5 13:33:17 2023 +0300
RDMA/mlx5: Initiate dropless RQ for RAW Ethernet functions
[ Upstream commit ee4d269eccfea6c17b18281bef482700d898e86f ]
Delay drop data is initiated for PFs that have the capability of
rq_delay_drop and are in roce profile.
However, PFs with RAW ethernet profile do not initiate delay drop data
on function load, causing kernel panic if delay drop struct members are
accessed later on in case a dropless RQ is created.
Thus, stage the delay drop initialization as part of RAW ethernet
PF loading process.
Fixes: b5ca15ad7e61 ("IB/mlx5: Add proper representors support")
Signed-off-by: Maher Sanalla <msanalla@xxxxxxxxxx>
Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxx>
Link: https://lore.kernel.org/r/2e9d386785043d48c38711826eb910315c1de141.1685960567.git.leon@xxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5d45de223c43a..f0b394ed7452a 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -4275,6 +4275,9 @@ const struct mlx5_ib_profile raw_eth_profile = {
STAGE_CREATE(MLX5_IB_STAGE_POST_IB_REG_UMR,
mlx5_ib_stage_post_ib_reg_umr_init,
NULL),
+ STAGE_CREATE(MLX5_IB_STAGE_DELAY_DROP,
+ mlx5_ib_stage_delay_drop_init,
+ mlx5_ib_stage_delay_drop_cleanup),
STAGE_CREATE(MLX5_IB_STAGE_RESTRACK,
mlx5_ib_restrack_init,
NULL),
