mirror of https://gitee.com/openkylin/linux.git
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2015 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#include <linux/pci.h>
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#include <linux/module.h>
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#include "net_driver.h"
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#include "ef10_sriov.h"
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#include "efx.h"
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#include "nic.h"
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#include "mcdi_pcol.h"
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static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs)
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{
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int rc = 0;
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struct pci_dev *dev = efx->pci_dev;
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efx->vf_count = num_vfs;
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rc = pci_enable_sriov(dev, num_vfs);
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if (rc) {
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efx->vf_count = 0;
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netif_err(efx, probe, efx->net_dev,
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"Failed to enable SRIOV VFs\n");
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}
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return rc;
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}
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static int efx_ef10_pci_sriov_disable(struct efx_nic *efx)
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{
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struct pci_dev *dev = efx->pci_dev;
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efx->vf_count = 0;
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pci_disable_sriov(dev);
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return 0;
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}
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int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs)
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{
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if (num_vfs == 0)
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return efx_ef10_pci_sriov_disable(efx);
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else
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return efx_ef10_pci_sriov_enable(efx, num_vfs);
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}
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