diff options
| author | Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> | 2022-04-28 12:39:33 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-04-29 18:43:01 -0700 |
| commit | 78a9b3c47befde80a4896a8c5172990b60c58af4 (patch) | |
| tree | e652e9200353ec1947cb05f11b8b9860f47b132c /drivers/net/ethernet/sfc/ef100.c | |
| parent | 4994d4fa99ba4552194eb7c257dc3001892d3e70 (diff) | |
sfc: add EF100 VF support via a write to sriov_numvfs
This patch extends the EF100 PF driver by adding .sriov_configure()
which would allow users to enable and disable virtual functions
using the sriov sysfs.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/75e74d9e-14ce-0524-9668-5ab735a7cf62@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/sfc/ef100.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef100.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/ef100.c b/drivers/net/ethernet/sfc/ef100.c index ffdb36715a49..173f0ecebc70 100644 --- a/drivers/net/ethernet/sfc/ef100.c +++ b/drivers/net/ethernet/sfc/ef100.c @@ -2,7 +2,7 @@ /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2005-2018 Solarflare Communications Inc. - * Copyright 2019-2020 Xilinx Inc. + * Copyright 2019-2022 Xilinx Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published @@ -17,6 +17,7 @@ #include "io.h" #include "ef100_nic.h" #include "ef100_netdev.h" +#include "ef100_sriov.h" #include "ef100_regs.h" #include "ef100.h" @@ -436,6 +437,10 @@ static void ef100_pci_remove(struct pci_dev *pci_dev) * blocks, so we have to do it before PCI removal. */ unregister_netdevice_notifier(&efx->netdev_notifier); +#if defined(CONFIG_SFC_SRIOV) + if (!efx->type->is_vf) + efx_ef100_pci_sriov_disable(efx); +#endif ef100_remove(efx); efx_fini_io(efx); netif_dbg(efx, drv, efx->net_dev, "shutdown successful\n"); @@ -524,6 +529,23 @@ fail: return rc; } +#ifdef CONFIG_SFC_SRIOV +static int ef100_pci_sriov_configure(struct pci_dev *dev, int num_vfs) +{ + struct efx_nic *efx = pci_get_drvdata(dev); + int rc; + + if (efx->type->sriov_configure) { + rc = efx->type->sriov_configure(efx, num_vfs); + if (rc) + return rc; + else + return num_vfs; + } + return -ENOENT; +} +#endif + /* PCI device ID table */ static const struct pci_device_id ef100_pci_table[] = { {PCI_DEVICE(PCI_VENDOR_ID_XILINX, 0x0100), /* Riverhead PF */ @@ -538,6 +560,9 @@ struct pci_driver ef100_pci_driver = { .id_table = ef100_pci_table, .probe = ef100_pci_probe, .remove = ef100_pci_remove, +#ifdef CONFIG_SFC_SRIOV + .sriov_configure = ef100_pci_sriov_configure, +#endif .err_handler = &efx_err_handlers, }; |