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nvme-pci: Use pci_sriov_configure_simple() to enable VFs

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Instead of implementing our own version of a SR-IOV configuration stub in
the nvme driver, use the existing pci_sriov_configure_simple() function.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Alexander Duyck 2018-04-24 16:47:27 -05:00 committed by Bjorn Helgaas
parent 115ddc4919
commit 74d986abc2
1 changed files with 1 additions and 19 deletions
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20
drivers/nvme/host/pci.c
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@ -2598,24 +2598,6 @@ static void nvme_remove(struct pci_dev *pdev)
nvme_put_ctrl(&dev->ctrl);
}
static int nvme_pci_sriov_configure(struct pci_dev *pdev, int numvfs)
{
int ret = 0;
if (numvfs == 0) {
if (pci_vfs_assigned(pdev)) {
dev_warn(&pdev->dev,
"Cannot disable SR-IOV VFs while assigned\n");
return -EPERM;
}
pci_disable_sriov(pdev);
return 0;
}
ret = pci_enable_sriov(pdev, numvfs);
return ret ? ret : numvfs;
}
#ifdef CONFIG_PM_SLEEP
static int nvme_suspend(struct device *dev)
{
@ -2734,7 +2716,7 @@ static struct pci_driver nvme_driver = {
.driver = {
.pm = &nvme_dev_pm_ops,
},
.sriov_configure = nvme_pci_sriov_configure,
.sriov_configure = pci_sriov_configure_simple,
.err_handler = &nvme_err_handler,
};