diff options
| author | Feras Daoud <ferasda@mellanox.com> | 2018-11-12 16:40:17 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-06-13 13:23:18 -0700 |
| commit | 3e5b72ac2f298423902169db7893fef43365e0a6 (patch) | |
| tree | 487a9d600ecebf121ea6c79fd915e78386539410 /drivers/net/ethernet/mellanox/mlx5/core/diag | |
| parent | 1ef6f1a17e56f9126472d2c50818f468f1fc43d2 (diff) | |
net/mlx5: Issue SW reset on FW assert
If a FW assert is considered fatal, indicated by a new bit in the health
buffer, reset the FW. After the reset go through the normal recovery
flow. Only one PF needs to issue the reset, so an attempt is made to
prevent the 2nd function from also issuing the reset.
It's not an error if that happens, it just slows recovery.
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/diag')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c index dfb34172c69b..28d02749d3c4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c @@ -51,14 +51,23 @@ int mlx5_crdump_collect(struct mlx5_core_dev *dev, u32 *cr_data) ret); return ret; } + /* Verify no other PF is running cr-dump or sw reset */ + ret = mlx5_vsc_sem_set_space(dev, MLX5_SEMAPHORE_SW_RESET, + MLX5_VSC_LOCK); + if (ret) { + mlx5_core_warn(dev, "Failed to lock SW reset semaphore\n"); + goto unlock_gw; + } ret = mlx5_vsc_gw_set_space(dev, MLX5_VSC_SPACE_SCAN_CRSPACE, NULL); if (ret) - goto unlock; + goto unlock_sem; ret = mlx5_crdump_fill(dev, cr_data); -unlock: +unlock_sem: + mlx5_vsc_sem_set_space(dev, MLX5_SEMAPHORE_SW_RESET, MLX5_VSC_UNLOCK); +unlock_gw: mlx5_vsc_gw_unlock(dev); return ret; } |