[pci PATCH v6 3/5] ena: Migrate over to unmanaged SR-IOV support

Alexander Duyck
2018-03-13T21:30:32Z

From: Alexander Duyck <alexander.h.duyck@intel.com>

Instead of implementing our own version of a SR-IOV configuration stub in
the ena driver we can just reuse the existing
pci_sriov_configure_simple function.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---

v5: Replaced call to pci_sriov_configure_unmanaged with
pci_sriov_configure_simple
v6: Dropped "#ifdef" checks for IOV wrapping sriov_configure definition

drivers/net/ethernet/amazon/ena/ena_netdev.c | 28 +-------------------------
1 file changed, 1 insertion(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 6975150d144e..6054deb1e6aa 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -3385,32 +3385,6 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}

/*****************************************************************************/
-static int ena_sriov_configure(struct pci_dev *dev, int numvfs)
-{
- int rc;
-
- if (numvfs > 0) {
- rc = pci_enable_sriov(dev, numvfs);
- if (rc != 0) {
- dev_err(&dev->dev,
- "pci_enable_sriov failed to enable: %d vfs with the error: %d\n",
- numvfs, rc);
- return rc;
- }
-
- return numvfs;
- }
-
- if (numvfs == 0) {
- pci_disable_sriov(dev);
- return 0;
- }
-
- return -EINVAL;
-}
-
-/*****************************************************************************/
-/*****************************************************************************/

/* ena_remove - Device Removal Routine
* @pdev: PCI device information struct
@@ -3525,7 +3499,7 @@ static int ena_resume(struct pci_dev *pdev)
.suspend = ena_suspend,
.resume = ena_resume,
#endif
- .sriov_configure = ena_sriov_configure,
+ .sriov_configure = pci_sriov_configure_simple,
};

static int __init ena_init(void)