[dpdk-dev] [PATCH V2 2/2] virtio: support IOMMU platform

[Jason Wang <jasowang@redhat.com>]

Negotiate VIRTIO_F_IOMMU_PLATFORM to have IOMMU support.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
Changes from v1:
- remove unnecessary NEED_MAPPING flag
---
 drivers/net/virtio/virtio_ethdev.h | 3 ++-
 drivers/net/virtio/virtio_pci.h    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h
index 2ecec6e..04a06e2 100644
--- a/drivers/net/virtio/virtio_ethdev.h
+++ b/drivers/net/virtio/virtio_ethdev.h
@@ -63,7 +63,8 @@
 	 1u << VIRTIO_NET_F_CTRL_RX	  |	\
 	 1u << VIRTIO_NET_F_CTRL_VLAN	  |	\
 	 1u << VIRTIO_NET_F_MRG_RXBUF	  |	\
-	 1ULL << VIRTIO_F_VERSION_1)
+	 1ULL << VIRTIO_F_VERSION_1       |	\
+	 1ULL << VIRTIO_F_IOMMU_PLATFORM )
 
 /*
  * CQ function prototype
diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h
index 3430a39..0aa0015 100644
--- a/drivers/net/virtio/virtio_pci.h
+++ b/drivers/net/virtio/virtio_pci.h
@@ -138,6 +138,7 @@ struct virtnet_ctl;
 #define VIRTIO_RING_F_INDIRECT_DESC	28
 
 #define VIRTIO_F_VERSION_1		32
+#define VIRTIO_F_IOMMU_PLATFORM	33
 
 /*
  * Some VirtIO feature bits (currently bits 28 through 31) are
@@ -145,7 +146,7 @@ struct virtnet_ctl;
  * rest are per-device feature bits.
  */
 #define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END   32
+#define VIRTIO_TRANSPORT_F_END   34
 
 /* The Guest publishes the used index for which it expects an interrupt
  * at the end of the avail ring. Host should ignore the avail->flags field. */
-- 
2.7.4