diff options
| author | Tal Gilboa <[email protected]> | 2021-02-11 08:55:49 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2021-02-16 18:42:59 +0000 |
| commit | 7232c132d13aafd178ba18c1099b2cb98d104b8c (patch) | |
| tree | b6bffa876586ab59b02b4881eeff0bcb4ca37fb6 /drivers/infiniband/hw/mlx5 | |
| parent | RDMA/rtrs-srv-sysfs: fix missing put_device (diff) | |
| download | kernel-7232c132d13aafd178ba18c1099b2cb98d104b8c.tar.gz kernel-7232c132d13aafd178ba18c1099b2cb98d104b8c.zip | |
RDMA/mlx5: Allow CQ creation without attached EQs
The traditional DevX CQ creation flow goes through mlx5_core_create_cq()
which checks that the given EQN corresponds to an existing EQ and attaches
a devx handler to the EQN for the CQ.
In some cases the EQ will not be a kernel EQ, but will be controlled by
modify CQ, don't block creating these just because the EQN can't be found
in the kernel.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Tal Gilboa <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'drivers/infiniband/hw/mlx5')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/devx.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index e39661db0d2f..ebc2a4355fa5 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -1439,6 +1439,16 @@ out: rcu_read_unlock(); } +static bool is_apu_thread_cq(struct mlx5_ib_dev *dev, const void *in) +{ + if (!MLX5_CAP_GEN(dev->mdev, apu) || + !MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context), + apu_thread_cq)) + return false; + + return true; +} + static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( struct uverbs_attr_bundle *attrs) { @@ -1492,7 +1502,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( obj->flags |= DEVX_OBJ_FLAGS_DCT; err = mlx5_core_create_dct(dev, &obj->core_dct, cmd_in, cmd_in_len, cmd_out, cmd_out_len); - } else if (opcode == MLX5_CMD_OP_CREATE_CQ) { + } else if (opcode == MLX5_CMD_OP_CREATE_CQ && + !is_apu_thread_cq(dev, cmd_in)) { obj->flags |= DEVX_OBJ_FLAGS_CQ; obj->core_cq.comp = devx_cq_comp; err = mlx5_core_create_cq(dev->mdev, &obj->core_cq, |