[PATCH v4 1/2] virtio-net: introduce and use helper function for guest gso support checks
From: Gavin Li <hidden>
Date: 2022-08-31 09:03:59
Subsystem:
networking drivers, the rest, virtio net driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Probe routine is already several hundred lines. Use helper function for guest gso support check. Signed-off-by: Gavin Li <redacted> Reviewed-by: Gavi Teitz <redacted> Reviewed-by: Parav Pandit <redacted> --- changelog: v1->v2 - Add new patch --- drivers/net/virtio_net.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9cce7dec7366..e1904877d461 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c@@ -3682,6 +3682,14 @@ static int virtnet_validate(struct virtio_device *vdev) return 0; } +static bool virtnet_check_guest_gso(const struct virtnet_info *vi) +{ + return (virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO4) || + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6) || + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_ECN) || + virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_UFO)); +} + static int virtnet_probe(struct virtio_device *vdev) { int i, err = -ENOMEM;
@@ -3777,10 +3785,7 @@ static int virtnet_probe(struct virtio_device *vdev) spin_lock_init(&vi->refill_lock); /* If we can receive ANY GSO packets, we must allocate large ones. */ - if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) || - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) || - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN) || - virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_UFO)) + if (virtnet_check_guest_gso(vi)) vi->big_packets = true; if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
--
2.31.1