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| author |   Aharon Landau <aharonl@nvidia.com> | 2022-05-15 07:19:53 +0300 |
|---|---|---|
| committer |   Leon Romanovsky <leonro@nvidia.com> | 2022-06-07 12:57:41 +0300 |
| commit | 158e71bb69e368b8b33e8b7c4ac8c111da0c1ae2 (patch) | |
| tree | 25467e144ee8975363db933b9cc9b7db84ee225f /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | RDMA/hfi1: Fix typo in comment (diff) | |
| download | linux-dev-158e71bb69e368b8b33e8b7c4ac8c111da0c1ae2.tar.xz linux-dev-158e71bb69e368b8b33e8b7c4ac8c111da0c1ae2.zip | |
RDMA/mlx5: Add a umr recovery flow
When a UMR fails, the UMR QP state changes to an error state. Therefore,
all the further UMR operations will fail too.
Add a recovery flow to the UMR QP, and repost the flushed WQEs.
Link: https://lore.kernel.org/r/6cc24816cca049bd8541317f5e41d3ac659445d3.1652588303.git.leonro@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 998b67509a53..7460e0dfe6db 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -717,13 +717,23 @@ struct mlx5_ib_umr_context { struct completion done; }; +enum { + MLX5_UMR_STATE_ACTIVE, + MLX5_UMR_STATE_RECOVER, + MLX5_UMR_STATE_ERR, +}; + struct umr_common { struct ib_pd *pd; struct ib_cq *cq; struct ib_qp *qp; - /* control access to UMR QP + /* Protects from UMR QP overflow */ struct semaphore sem; + /* Protects from using UMR while the UMR is not active + */ + struct mutex lock; + unsigned int state; }; struct mlx5_cache_ent { |