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RDMA/mlx5: Adding remote atomic access flag to updatable flags

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BugLink: https://bugs.launchpad.net/bugs/2071621

[ Upstream commit 2ca7e93bc963d9ec2f5c24d117176851454967af ]

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: ef3642c4f5 ("RDMA/mlx5: Fix error unwinds for rereg_mr")
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Link: https://lore.kernel.org/r/24dac73e2fa48cb806f33a932d97f3e402a5ea2c.1712140377.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Or Har-Toov
2024-04-03 13:36:01 +03:00
committed by Stefan Bader
parent 73c3a3d370
commit e529854e31
1 changed files with 2 additions and 1 deletions
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drivers/infiniband/hw/mlx5/mr.c
+2 -1
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@@ -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);