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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: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220906105620.26179-1-pieter.jansen-van-vuuren@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Pieter Jansen van Vuuren 2022-09-06 11:56:20 +01:00 committed by Paolo Abeni
parent 169ccf0e40
commit 41e3b0722f
2 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/ethernet/sfc/efx.c
View File

@ -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,

12
drivers/net/ethernet/sfc/siena/efx.c
View File

@ -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,