[dpdk-dev] [PATCH v5 09/11] virtio_pci: do not parse if interface is vfio-noiommu

[Santosh Shukla]

If virtio interface attached to vfio-noiommu driver then
do not parse for virtio resource. Instead exit with return 0;

Note: Applicable for virtio spec 0.95.

Signed-off-by: Santosh Shukla <sshukla at mvista.com>
---
v4-->v5:
- added _NOIOMMU drv check for lagecy virtio. No need for resource_init in vfio
  case. And resource_pasrsing/interface validation done by pci_eal module for
  pmd driver.
 
 drivers/net/virtio/virtio_pci.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c
index 537c552..520e540 100644
--- a/drivers/net/virtio/virtio_pci.c
+++ b/drivers/net/virtio/virtio_pci.c
@@ -514,7 +514,9 @@ virtio_resource_init_by_ioports(struct rte_pci_device *pci_dev)
 static int
 legacy_virtio_resource_init(struct rte_pci_device *pci_dev)
 {
-	if (virtio_resource_init_by_uio(pci_dev) == 0)
+	if (pci_dev->kdrv == RTE_KDRV_VFIO_NOIOMMU)
+		return 0;
+	else if (virtio_resource_init_by_uio(pci_dev) == 0)
 		return 0;
 	else
 		return virtio_resource_init_by_ioports(pci_dev);
-- 
1.7.9.5