niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

net/mlx5: Skip pages EQ creation for non-page supplier function

Browse source 
Page events are not issued by device on the function if
page_request_disable is set, so no need to create pages EQ.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20240402133043.56322-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jianbo Liu 2024-04-02 16:30:42 +03:00 • committed by Jakub Kicinski
parent 137f3d50ad
commit c788d79cfa
2 changed files with 11 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View file

@ -688,6 +688,12 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
if (err)
goto err2;
/* Skip page eq creation when the device does not request for page requests */
if (MLX5_CAP_GEN(dev, page_request_disable)) {
mlx5_core_dbg(dev, "Skip page EQ creation\n");
return 0;
}
param = (struct mlx5_eq_param) {
.irq = table->ctrl_irq,
.nent = /* TODO: sriov max_vf + */ 1,
@ -716,7 +722,8 @@ static void destroy_async_eqs(struct mlx5_core_dev *dev)
{
struct mlx5_eq_table *table = dev->priv.eq_table;
cleanup_async_eq(dev, &table->pages_eq, "pages");
if (!MLX5_CAP_GEN(dev, page_request_disable))
cleanup_async_eq(dev, &table->pages_eq, "pages");
cleanup_async_eq(dev, &table->async_eq, "async");
mlx5_cmd_allowed_opcode(dev, MLX5_CMD_OP_DESTROY_EQ);
mlx5_cmd_use_polling(dev);

4
include/linux/mlx5/mlx5_ifc.h
View file

@ -1485,7 +1485,9 @@ enum {
};
struct mlx5_ifc_cmd_hca_cap_bits {
u8 reserved_at_0[0x10];
u8 reserved_at_0[0x6];
u8 page_request_disable[0x1];
u8 reserved_at_7[0x9];
u8 shared_object_to_user_object_allowed[0x1];
u8 reserved_at_13[0xe];
u8 vhca_resource_manager[0x1];