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Enable LRO by default when available on vtnet interfaces

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The prior change to not enable LRO by default has confused several
people. The configurations where LRO is problematic is not the
typical use case for VirtIO, and due to other issues, this often
requires checksum offloading to be disabled anyways.

PR:		185864
MFC after:	2 weeks
This commit is contained in:
bryanv 2014-11-09 20:04:12 +00:00
parent 013b888a89
commit d20788b3ba
1 changed files with 6 additions and 7 deletions
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13
sys/dev/virtio/network/if_vtnet.c
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@ -967,9 +967,14 @@ vtnet_setup_interface(struct vtnet_softc *sc)
ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
}
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_CSUM))
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_CSUM)) {
ifp->if_capabilities |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6;
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO6))
ifp->if_capabilities |= IFCAP_LRO;
}
if (ifp->if_capabilities & IFCAP_HWCSUM) {
/*
* VirtIO does not support VLAN tagging, but we can fake
@ -987,12 +992,6 @@ vtnet_setup_interface(struct vtnet_softc *sc)
* Capabilities after here are not enabled by default.
*/
if (ifp->if_capabilities & IFCAP_RXCSUM) {
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO6))
ifp->if_capabilities |= IFCAP_LRO;
}
if (sc->vtnet_flags & VTNET_FLAG_VLAN_FILTER) {
ifp->if_capabilities |= IFCAP_VLAN_HWFILTER;