Merge tag 'mlx5-updates-2023-08-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2023-08-07

1) Few cleanups

2) Dynamic completion EQs

The driver creates completion EQs for all vectors directly on driver
load, even if those EQs will not be utilized later on.

To allow more flexibility in managing completion EQs and to reduce the
memory overhead of driver load, this series will adjust completion EQs
creation to be dynamic. Meaning, completion EQs will be created only
when needed.

Patch #1 introduces a counter for tracking the current number of
completion EQs.
Patches #2-6 refactor the existing infrastructure of managing completion
EQs and completion IRQs to be compatible with per-vector
allocation/release requests.
Patches #7-8 modify the CPU-to-IRQ affinity calculation to be resilient
in case the affinity is requested but completion IRQ is not allocated yet.
Patch #9 function rename.
Patch #10 handles the corner case of SF performing an IRQ request when no
SF IRQ pool is found, and no PF IRQ exists for the same vector.
Patch #11 modify driver to use dynamically allocate completion EQs.

* tag 'mlx5-updates-2023-08-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Bridge, Only handle registered netdev bridge events
  net/mlx5: E-Switch, Remove redundant arg ignore_flow_lvl
  net/mlx5: Fix typo reminder -> remainder
  net/mlx5: remove many unnecessary NULL values
  net/mlx5: Allocate completion EQs dynamically
  net/mlx5: Handle SF IRQ request in the absence of SF IRQ pool
  net/mlx5: Rename mlx5_comp_vectors_count() to mlx5_comp_vectors_max()
  net/mlx5: Add IRQ vector to CPU lookup function
  net/mlx5: Introduce mlx5_cpumask_default_spread
  net/mlx5: Implement single completion EQ create/destroy methods
  net/mlx5: Use xarray to store and manage completion EQs
  net/mlx5: Refactor completion IRQ request/release handlers in EQ layer
  net/mlx5: Use xarray to store and manage completion IRQs
  net/mlx5: Refactor completion IRQ request/release API
  net/mlx5: Track the current number of completion EQs
====================

Link: https://lore.kernel.org/r/20230807175642.20834-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index fa70c25423b2..3e1017d764b7 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1058,7 +1058,7 @@ void mlx5_unregister_debugfs(void);
 
 void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
-int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn);
+int mlx5_comp_eqn_get(struct mlx5_core_dev *dev, u16 vecidx, int *eqn);
 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 
@@ -1108,9 +1108,8 @@ int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
 		     bool map_wc, bool fast_path);
 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
 
-unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev);
-struct cpumask *
-mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector);
+unsigned int mlx5_comp_vectors_max(struct mlx5_core_dev *dev);
+int mlx5_comp_vector_get_cpu(struct mlx5_core_dev *dev, int vector);
 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
 			   u8 roce_version, u8 roce_l3_type, const u8 *gid,