UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net/mlx5: Stop waiting for PCI up if teardown was triggered 

If driver teardown is called while PCI is turned off, there is a race
between health recovery and teardown. If health recovery already started
it will wait 60 sec trying to see if PCI gets back and it can recover,
but actually there is no need to wait anymore once teardown was called.

Use the MLX5_BREAK_FW_WAIT flag which is set on driver teardown to break
waiting for PCI up.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20230314054234.267365-3-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Moshe Shemesh 2023-03-13 22:42:21 -07:00 committed by Jakub Kicinski
parent c05d145abe
commit 8ff38e730c
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/mellanox/mlx5/core/health.c
View File

@ -325,6 +325,10 @@ int mlx5_health_wait_pci_up(struct mlx5_core_dev *dev)
while (sensor_pci_not_working(dev)) {
if (time_after(jiffies, end))
return -ETIMEDOUT;
if (test_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state)) {
mlx5_core_warn(dev, "device is being removed, stop waiting for PCI\n");
return -ENODEV;
}
msleep(100);
}
return 0;