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net/mlx5: Disallow SRIOV switchdev mode when in multi-PF netdev

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Adaptations need to be made for the auxiliary device management in the
core driver level. Block this combination for now.

Fixes: 678eb44805 ("net/mlx5: SD, Implement basic query and instantiation")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://lore.kernel.org/r/20240409190820.227554-12-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Tariq Toukan 2024-04-09 22:08:19 +03:00 committed by Jakub Kicinski
parent 49e6c93870
commit 7772dc7460
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
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@ -43,6 +43,7 @@
#include "rdma.h"
#include "en.h"
#include "fs_core.h"
#include "lib/mlx5.h"
#include "lib/devcom.h"
#include "lib/eq.h"
#include "lib/fs_chains.h"
@ -3711,6 +3712,12 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
if (esw_mode_from_devlink(mode, &mlx5_mode))
return -EINVAL;
if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV && mlx5_get_sd(esw->dev)) {
NL_SET_ERR_MSG_MOD(extack,
"Can't change E-Switch mode to switchdev when multi-PF netdev (Socket Direct) is configured.");
return -EPERM;
}
mlx5_lag_disable_change(esw->dev);
err = mlx5_esw_try_lock(esw);
if (err < 0) {