diff options
| author |   Alex Vesker <valex@mellanox.com> | 2018-07-12 15:13:18 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-12 17:37:13 -0700 |
| commit | 3c641ba4a852cf4e90e3d7f29c5df08e24213c5d (patch) | |
| tree | a7261b42a7763bc92d15d0505281805d62c33376 /drivers/net/ethernet/mellanox/mlx4/crdump.c | |
| parent | devlink: Add generic parameters region_snapshot (diff) | |
| download | linux-dev-3c641ba4a852cf4e90e3d7f29c5df08e24213c5d.tar.xz linux-dev-3c641ba4a852cf4e90e3d7f29c5df08e24213c5d.zip | |
net/mlx4_core: Use devlink region_snapshot parameter
This parameter enables capturing region snapshot of the crspace
during critical errors. The default value of this parameter is
disabled, it can be enabled using devlink param commands.
It is possible to configure during runtime and also driver init.
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/crdump.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/crdump.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/crdump.c b/drivers/net/ethernet/mellanox/mlx4/crdump.c index 4d5524dffec4..88316c743820 100644 --- a/drivers/net/ethernet/mellanox/mlx4/crdump.c +++ b/drivers/net/ethernet/mellanox/mlx4/crdump.c @@ -158,6 +158,7 @@ static void mlx4_crdump_collect_fw_health(struct mlx4_dev *dev, int mlx4_crdump_collect(struct mlx4_dev *dev) { struct devlink *devlink = priv_to_devlink(mlx4_priv(dev)); + struct mlx4_fw_crdump *crdump = &dev->persist->crdump; struct pci_dev *pdev = dev->persist->pdev; unsigned long cr_res_size; u8 __iomem *cr_space; @@ -168,6 +169,11 @@ int mlx4_crdump_collect(struct mlx4_dev *dev) return 0; } + if (!crdump->snapshot_enable) { + mlx4_info(dev, "crdump: devlink snapshot disabled, skipping\n"); + return 0; + } + cr_res_size = pci_resource_len(pdev, 0); cr_space = ioremap(pci_resource_start(pdev, 0), cr_res_size); @@ -197,6 +203,8 @@ int mlx4_crdump_init(struct mlx4_dev *dev) struct mlx4_fw_crdump *crdump = &dev->persist->crdump; struct pci_dev *pdev = dev->persist->pdev; + crdump->snapshot_enable = false; + /* Create cr-space region */ crdump->region_crspace = devlink_region_create(devlink, |