diff options
Diffstat (limited to 'sys/dev/virtio/network/if_vtnet.c')
| -rw-r--r-- | sys/dev/virtio/network/if_vtnet.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/sys/dev/virtio/network/if_vtnet.c b/sys/dev/virtio/network/if_vtnet.c index 528ff3372097..471c6b3714b2 100644 --- a/sys/dev/virtio/network/if_vtnet.c +++ b/sys/dev/virtio/network/if_vtnet.c @@ -281,7 +281,7 @@ static int vtnet_tso_disable = 0; SYSCTL_INT(_hw_vtnet, OID_AUTO, tso_disable, CTLFLAG_RDTUN, &vtnet_tso_disable, 0, "Disables TSO"); -static int vtnet_lro_disable = 0; +static int vtnet_lro_disable = 1; SYSCTL_INT(_hw_vtnet, OID_AUTO, lro_disable, CTLFLAG_RDTUN, &vtnet_lro_disable, 0, "Disables hardware LRO"); @@ -1153,11 +1153,9 @@ vtnet_setup_interface(struct vtnet_softc *sc) } if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_CSUM)) { - if_setcapabilitiesbit(ifp, IFCAP_RXCSUM, 0); -#ifdef notyet /* BMV: Rx checksums not distinguished between IPv4 and IPv6. */ + if_setcapabilitiesbit(ifp, IFCAP_RXCSUM, 0); if_setcapabilitiesbit(ifp, IFCAP_RXCSUM_IPV6, 0); -#endif if (vtnet_tunable_int(sc, "fixup_needs_csum", vtnet_fixup_needs_csum) != 0) @@ -1347,14 +1345,22 @@ vtnet_ioctl_ifcap(struct vtnet_softc *sc, struct ifreq *ifr) VTNET_CORE_LOCK_ASSERT(sc); - if (mask & IFCAP_TXCSUM) + if (mask & IFCAP_TXCSUM) { if_togglecapenable(ifp, IFCAP_TXCSUM); - if (mask & IFCAP_TXCSUM_IPV6) + if_togglehwassist(ifp, VTNET_CSUM_OFFLOAD); + } + if (mask & IFCAP_TXCSUM_IPV6) { if_togglecapenable(ifp, IFCAP_TXCSUM_IPV6); - if (mask & IFCAP_TSO4) + if_togglehwassist(ifp, VTNET_CSUM_OFFLOAD_IPV6); + } + if (mask & IFCAP_TSO4) { if_togglecapenable(ifp, IFCAP_TSO4); - if (mask & IFCAP_TSO6) + if_togglehwassist(ifp, IFCAP_TSO4); + } + if (mask & IFCAP_TSO6) { if_togglecapenable(ifp, IFCAP_TSO6); + if_togglehwassist(ifp, IFCAP_TSO6); + } if (mask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6 | IFCAP_LRO)) { /* @@ -1370,27 +1376,20 @@ vtnet_ioctl_ifcap(struct vtnet_softc *sc, struct ifreq *ifr) if ((mask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6 | IFCAP_LRO)) == IFCAP_LRO && vtnet_software_lro(sc)) reinit = update = 0; - - if (mask & IFCAP_RXCSUM) + /* + * VirtIO does not distinguish between receive checksum offload + * for IPv4 and IPv6 packets, so treat them as a pair. + */ + if (mask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { if_togglecapenable(ifp, IFCAP_RXCSUM); - if (mask & IFCAP_RXCSUM_IPV6) if_togglecapenable(ifp, IFCAP_RXCSUM_IPV6); + } if (mask & IFCAP_LRO) if_togglecapenable(ifp, IFCAP_LRO); - - /* - * VirtIO does not distinguish between IPv4 and IPv6 checksums - * so treat them as a pair. Guest TSO (LRO) requires receive - * checksums. - */ - if (if_getcapenable(ifp) & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { - if_setcapenablebit(ifp, IFCAP_RXCSUM, 0); -#ifdef notyet - if_setcapenablebit(ifp, IFCAP_RXCSUM_IPV6, 0); -#endif - } else - if_setcapenablebit(ifp, 0, - (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6 | IFCAP_LRO)); + /* Both SW and HW TCP LRO require receive checksum offload. */ + if ((if_getcapenable(ifp) & + (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) == 0) + if_setcapenablebit(ifp, 0, IFCAP_LRO); } if (mask & IFCAP_VLAN_HWFILTER) { |