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net/mlx5: Fix crash upon suspend/resume 

Currently a Linux system with the mlx5 NIC always crashes upon
hibernation - suspend/resume.

Add basic callbacks so the NIC could be suspended and resumed.

Fixes: 9603b61de1 ("mlx5: Move pci device handling from mlx5_ib to mlx5_core")
Tested-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Mark Bloch 2020-05-20 17:32:08 +00:00 committed by Saeed Mahameed
parent 7c6d2ecbda
commit 8fc3e29be9
1 changed files with 18 additions and 0 deletions
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18
drivers/net/ethernet/mellanox/mlx5/core/main.c
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@ -1549,6 +1549,22 @@ static void shutdown(struct pci_dev *pdev)
mlx5_pci_disable_device(dev);
}
static int mlx5_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
mlx5_unload_one(dev, false);
return 0;
}
static int mlx5_resume(struct pci_dev *pdev)
{
struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
return mlx5_load_one(dev, false);
}
static const struct pci_device_id mlx5_core_pci_table[] = {
{ PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTIB) },
{ PCI_VDEVICE(MELLANOX, 0x1012), MLX5_PCI_DEV_IS_VF}, /* Connect-IB VF */
@ -1592,6 +1608,8 @@ static struct pci_driver mlx5_core_driver = {
.id_table = mlx5_core_pci_table,
.probe = init_one,
.remove = remove_one,
.suspend = mlx5_suspend,
.resume = mlx5_resume,
.shutdown = shutdown,
.err_handler = &mlx5_err_handler,
.sriov_configure = mlx5_core_sriov_configure,