From: Mark Bloch <ma...@mellanox.com>
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: 9603b61de1ee ("mlx5: Move pci device handling from mlx5_ib to mlx5_core")
Tested-by: Dexuan Cui <de...@microsoft.com>
Signed-off-by: Mark Bloch <ma...@mellanox.com>
Reviewed-by: Moshe Shemesh <mo...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c
b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index c1618b818f3ab..17f818a540903 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -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,
--
2.26.2
