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| author |   Lama Kayal <lkayal@nvidia.com> | 2021-08-01 14:57:16 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@nvidia.com> | 2021-09-30 16:19:01 -0700 |
| commit | 2b0247e220975fd0a9902eef1643f5003d323ef8 (patch) | |
| tree | fe20b58c147b23a3db1484504cb8edf790f9f5e8 /drivers/net/ethernet/mellanox | |
| parent | net/mlx5: DR, Add missing string for action type SAMPLER (diff) | |
| download | linux-dev-2b0247e220975fd0a9902eef1643f5003d323ef8.tar.xz linux-dev-2b0247e220975fd0a9902eef1643f5003d323ef8.zip | |
net/mlx5: Warn for devlink reload when there are VFs alive
When performing PF reload, VF can't communicate with FW until
it recovers and reloads as well.
Add a warning message when performing devlink reload while
VFs are still present. Thus, giving a notice of an unfavorable
behavior that might occur as a result of a consequential reloads
and cause interruption of VF recovery.
Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c index d7576b6fa43b..b9a6cea03951 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c @@ -136,6 +136,7 @@ static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = devlink_priv(devlink); + struct pci_dev *pdev = dev->pdev; bool sf_dev_allocated; sf_dev_allocated = mlx5_sf_dev_allocated(dev); @@ -153,6 +154,10 @@ static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change, return -EOPNOTSUPP; } + if (pci_num_vf(pdev)) { + NL_SET_ERR_MSG_MOD(extack, "reload while VFs are present is unfavorable"); + } + switch (action) { case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: mlx5_unload_one(dev); |