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| author | Maher Sanalla <msanalla@nvidia.com> | 2023-06-12 10:13:50 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-08-07 20:53:52 +0300 |
| commit | f14c1a14e63227a65faa68237687784a6dd2e922 (patch) | |
| tree | b10ed4e6c5abee82caa00f27de60b92775595c29 /drivers/vfio/pci/mlx5 | |
| parent | 54c5297801f3b9140c751c7f5660770c52dea24e (diff) | |
| download | linux-f14c1a14e63227a65faa68237687784a6dd2e922.tar.xz | |
net/mlx5: Allocate completion EQs dynamically
This commit enables the dynamic allocation of EQs at runtime, allowing
for more flexibility in managing completion EQs and reducing the memory
overhead of driver load. Whenever a CQ is created for a given vector
index, the driver will lookup to see if there is an already mapped
completion EQ for that vector, if so, utilize it. Otherwise, allocate a
new EQ on demand and then utilize it for the CQ completion events.
Add a protection lock to the EQ table to protect from concurrent EQ
creation attempts.
While at it, replace mlx5_vector2irqn()/mlx5_vector2eqn() with
mlx5_comp_eqn_get() and mlx5_comp_irqn_get() which will allocate an
EQ on demand if no EQ is found for the given vector.
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/vfio/pci/mlx5')
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c index eee20f04a469..c82c1f4fc588 100644 --- a/drivers/vfio/pci/mlx5/cmd.c +++ b/drivers/vfio/pci/mlx5/cmd.c @@ -1026,7 +1026,7 @@ static int mlx5vf_create_cq(struct mlx5_core_dev *mdev, } vector = raw_smp_processor_id() % mlx5_comp_vectors_max(mdev); - err = mlx5_vector2eqn(mdev, vector, &eqn); + err = mlx5_comp_eqn_get(mdev, vector, &eqn); if (err) goto err_vec; |