Commit 41e3b072 authored by Pieter Jansen van Vuuren's avatar Pieter Jansen van Vuuren Committed by Paolo Abeni
Browse files

sfc: introduce shutdown entry point in efx pci driver 



Make the device inactive when the system shutdown callback has been
invoked. This is achieved by freezing the driver and disabling the
PCI bus mastering.

Co-developed-by: default avatarMartin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: default avatarMartin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: default avatarPieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Acked-by: default avatarEdward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220906105620.26179-1-pieter.jansen-van-vuuren@amd.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 169ccf0e

drivers/net/ethernet/sfc/efx.c

+12 −0
Original line number Diff line number Diff line
@@ -1175,6 +1175,17 @@ static int efx_pm_freeze(struct device *dev) 
	return 0;

}



static void efx_pci_shutdown(struct pci_dev *pci_dev)

{

	struct efx_nic *efx = pci_get_drvdata(pci_dev);



	if (!efx)

		return;



	efx_pm_freeze(&pci_dev->dev);

	pci_disable_device(pci_dev);

}



static int efx_pm_thaw(struct device *dev)

{

	int rc;
@@ -1279,6 +1290,7 @@ static struct pci_driver efx_pci_driver = { 
	.probe		= efx_pci_probe,

	.remove		= efx_pci_remove,

	.driver.pm	= &efx_pm_ops,

	.shutdown	= efx_pci_shutdown,

	.err_handler	= &efx_err_handlers,

#ifdef CONFIG_SFC_SRIOV

	.sriov_configure = efx_pci_sriov_configure,

drivers/net/ethernet/sfc/siena/efx.c

+12 −0
Original line number Diff line number Diff line
@@ -1148,6 +1148,17 @@ static int efx_pm_freeze(struct device *dev) 
	return 0;

}



static void efx_pci_shutdown(struct pci_dev *pci_dev)

{

	struct efx_nic *efx = pci_get_drvdata(pci_dev);



	if (!efx)

		return;



	efx_pm_freeze(&pci_dev->dev);

	pci_disable_device(pci_dev);

}



static int efx_pm_thaw(struct device *dev)

{

	int rc;
@@ -1252,6 +1263,7 @@ static struct pci_driver efx_pci_driver = { 
	.probe		= efx_pci_probe,

	.remove		= efx_pci_remove,

	.driver.pm	= &efx_pm_ops,

	.shutdown	= efx_pci_shutdown,

	.err_handler	= &efx_siena_err_handlers,

#ifdef CONFIG_SFC_SIENA_SRIOV

	.sriov_configure = efx_pci_sriov_configure,