projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 834e23dd SS |
1 | /**************************************************************************** |
| 2 | * Driver for Solarflare network controllers and boards | |
| 3 | * Copyright 2015 Solarflare Communications Inc. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU General Public License version 2 as published | |
| 7 | * by the Free Software Foundation, incorporated herein by reference. | |
| 8 | */ | |
| 9 | #include <linux/pci.h> | |
| 10 | #include <linux/module.h> | |
| 11 | #include "net_driver.h" | |
| 12 | #include "ef10_sriov.h" | |
| 13 | #include "efx.h" | |
| 14 | #include "nic.h" | |
| 15 | #include "mcdi_pcol.h" | |
| 16 | ||
| 17 | static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs) | |
| 18 | { | |
| 19 | int rc = 0; | |
| 20 | struct pci_dev *dev = efx->pci_dev; | |
| 21 | ||
| 22 | efx->vf_count = num_vfs; | |
| 23 | rc = pci_enable_sriov(dev, num_vfs); | |
| 24 | if (rc) { | |
| 25 | efx->vf_count = 0; | |
| 26 | netif_err(efx, probe, efx->net_dev, | |
| 27 | "Failed to enable SRIOV VFs\n"); | |
| 28 | } | |
| 29 | return rc; | |
| 30 | } | |
| 31 | ||
| 32 | static int efx_ef10_pci_sriov_disable(struct efx_nic *efx) | |
| 33 | { | |
| 34 | struct pci_dev *dev = efx->pci_dev; | |
| 35 | ||
| 36 | efx->vf_count = 0; | |
| 37 | pci_disable_sriov(dev); | |
| 38 | return 0; | |
| 39 | } | |
| 40 | ||
| 41 | int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs) | |
| 42 | { | |
| 43 | if (num_vfs == 0) | |
| 44 | return efx_ef10_pci_sriov_disable(efx); | |
| 45 | else | |
| 46 | return efx_ef10_pci_sriov_enable(efx, num_vfs); | |
| 47 | } |