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[rdma-rc,01/10] RDMA/mlx5: Initiate dropless RQ for RAW Ethernet functions

Message ID 2e9d386785043d48c38711826eb910315c1de141.1685960567.git.leon@kernel.org (mailing list archive)
State Accepted
Headers show
Series Batch of uverbs and mlx5_ib fixes | expand

Commit Message

Leon Romanovsky June 5, 2023, 10:33 a.m. UTC 
From: Maher Sanalla <msanalla@nvidia.com>

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@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/hw/mlx5/main.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5d45de223c43..f0b394ed7452 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),