Commit 22e3817e authored by Daniel Jurgens's avatar Daniel Jurgens Committed by David S. Miller

net/mlx4_core: Do not BUG_ON during reset when PCI is offline

The PCI channel could go offline during reset due to EEH.  Don't bug on in
this case, the error is recoverable.

Fixes: f6bc11e4 ('net/mlx4_core: Enhance the catas flow to support device reset')
Signed-off-by: default avatarDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6b94bab0
......@@ -182,10 +182,17 @@ void mlx4_enter_error_state(struct mlx4_dev_persistent *persist)
err = mlx4_reset_slave(dev);
else
err = mlx4_reset_master(dev);
BUG_ON(err != 0);
dev->persist->state |= MLX4_DEVICE_STATE_INTERNAL_ERROR;
if (!err) {
mlx4_err(dev, "device was reset successfully\n");
} else {
/* EEH could have disabled the PCI channel during reset. That's
* recoverable and the PCI error flow will handle it.
*/
if (!pci_channel_offline(dev->persist->pdev))
BUG_ON(1);
}
dev->persist->state |= MLX4_DEVICE_STATE_INTERNAL_ERROR;
mutex_unlock(&persist->device_state_mutex);
/* At that step HW was already reset, now notify clients */
......
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