github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 09:36:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net/mlx5: SD, keep netdev resources on same PF in switchdev mode

Browse Source 
In SD switchdev mode, network device resources such as channels and
completion vectors must remain on the same PF rather than being
distributed across SD group members.

Modify mlx5_sd_ch_ix_get_dev_ix() to return 0 and
mlx5_sd_ch_ix_get_vec_ix() to return the channel index directly when
in switchdev mode, keeping resources local to the requesting PF.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260531113954.395443-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Shay Drory 2026-05-31 14:39:50 +03:00 committed by Jakub Kicinski
parent c3933a7a7f
commit 8698ddb07f
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c
View File

@ -6,6 +6,7 @@
#include "mlx5_core.h"
#include "lib/mlx5.h"
#include "fs_cmd.h"
#include <linux/mlx5/eswitch.h>
#include <linux/mlx5/vport.h>
#include <linux/debugfs.h>
@ -85,11 +86,17 @@ mlx5_sd_primary_get_peer(struct mlx5_core_dev *primary, int idx)
int mlx5_sd_ch_ix_get_dev_ix(struct mlx5_core_dev *dev, int ch_ix)
{
if (is_mdev_switchdev_mode(dev))
return 0;
return ch_ix % mlx5_sd_get_host_buses(dev);
}
int mlx5_sd_ch_ix_get_vec_ix(struct mlx5_core_dev *dev, int ch_ix)
{
if (is_mdev_switchdev_mode(dev))
return ch_ix;
return ch_ix / mlx5_sd_get_host_buses(dev);
}