From 834e23dd0a27b5f0d424cc5a41bed42a6a588479 Mon Sep 17 00:00:00 2001 From: Shradha Shah Date: Wed, 6 May 2015 00:55:58 +0100 Subject: sfc: Enable VF's via a write to the sysfs file sriov_numvfs This patch adds support for the use of sriov_configure on EF10 to enable Virtual Functions while the driver is loaded. Signed-off-by: Shradha Shah Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/efx.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/net/ethernet/sfc/efx.c') diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index fe8fe20eaa77..917b137f1452 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -3046,6 +3046,26 @@ static int efx_pci_probe(struct pci_dev *pci_dev, return rc; } +/* efx_pci_sriov_configure returns the actual number of Virtual Functions + * enabled on success + */ +#ifdef CONFIG_SFC_SRIOV +static int efx_pci_sriov_configure(struct pci_dev *dev, int num_vfs) +{ + int rc; + struct efx_nic *efx = pci_get_drvdata(dev); + + if (efx->type->sriov_configure) { + rc = efx->type->sriov_configure(efx, num_vfs); + if (rc) + return rc; + else + return num_vfs; + } else + return -EOPNOTSUPP; +} +#endif + static int efx_pm_freeze(struct device *dev) { struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); @@ -3268,6 +3288,9 @@ static struct pci_driver efx_pci_driver = { .remove = efx_pci_remove, .driver.pm = &efx_pm_ops, .err_handler = &efx_err_handlers, +#ifdef CONFIG_SFC_SRIOV + .sriov_configure = efx_pci_sriov_configure, +#endif }; /************************************************************************** -- cgit v1.2.1