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[rdma-next,v2,3/3] RDMA/mlx5: Adding remote atomic access flag to updatable flags

Message ID 24dac73e2fa48cb806f33a932d97f3e402a5ea2c.1712140377.git.leon@kernel.org (mailing list archive)
State Accepted
Headers show
Series Rewrite mlx3 mkeys logic | expand

Commit Message

Leon Romanovsky April 3, 2024, 10:36 a.m. UTC 
From: Or Har-Toov <ohartoov@nvidia.com>

Currently IB_ACCESS_REMOTE_ATOMIC is blocked from being updated via UMR
although in some cases it should be possible. These cases are checked in
mlx5r_umr_can_reconfig function.

Fixes: ef3642c4f54d ("RDMA/mlx5: Fix error unwinds for rereg_mr")
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/hw/mlx5/mr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 7f7b1f59b5f0..ecc111ed5d86 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1572,7 +1572,8 @@  static bool can_use_umr_rereg_access(struct mlx5_ib_dev *dev,
 	unsigned int diffs = current_access_flags ^ target_access_flags;
 
 	if (diffs & ~(IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE |
-		      IB_ACCESS_REMOTE_READ | IB_ACCESS_RELAXED_ORDERING))
+		      IB_ACCESS_REMOTE_READ | IB_ACCESS_RELAXED_ORDERING |
+		      IB_ACCESS_REMOTE_ATOMIC))
 		return false;
 	return mlx5r_umr_can_reconfig(dev, current_access_flags,
 				      target_access_flags);