diff options
| author | Nimrod Oren <noren@nvidia.com> | 2026-04-29 23:14:28 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-02 05:02:07 +0300 |
| commit | 3b16155425af46ac89c6cc676db0ca1ec4c4ab85 (patch) | |
| tree | 0a877bb9763e61c8aefb1457a40015192b51e05a /include/linux | |
| parent | 3796df7645e5f173b6d1812597057dfeb9a62eb9 (diff) | |
| download | linux-3b16155425af46ac89c6cc676db0ca1ec4c4ab85.tar.xz | |
net/mlx5: add frag buf pools create/destroy paths
Introduce mlx5 DMA pool and pool-page data structures, and add the
creation and teardown paths.
Each NUMA node owns a set of mlx5_dma_pool instances, each one with a
different block size. The sizes are defined as all powers of two
starting from MLX5_ADAPTER_PAGE_SHIFT and up to PAGE_SHIFT. Since
mlx5_frag_bufs are used to back objects whose sizes are encoded relative
to MLX5_ADAPTER_PAGE_SHIFT, a smaller block_shift value cannot be used.
Requests larger than PAGE_SIZE continue to be handled as page-sized
fragments, as in the existing frag-buf allocation model.
Signed-off-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260429201429.223809-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mlx5/driver.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 04b96c5abb57..71f7615ab553 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -558,6 +558,7 @@ enum mlx5_func_type { MLX5_FUNC_TYPE_NUM, }; +struct mlx5_frag_buf_node_pools; struct mlx5_ft_pool; struct mlx5_priv { /* IRQ table valid only for real pci devices PF or VF */ @@ -581,14 +582,16 @@ struct mlx5_priv { struct mlx5_debugfs_entries dbg; - /* start: alloc staff */ + /* start: alloc stuff */ /* protect buffer allocation according to numa node */ struct mutex alloc_mutex; int numa_node; struct mutex pgdir_mutex; struct list_head pgdir_list; - /* end: alloc staff */ + + struct mlx5_frag_buf_node_pools **frag_buf_node_pools; + /* end: alloc stuff */ struct mlx5_adev **adev; int adev_idx; |