From 7960e6ba99d5edacb94b87b4f60be4b0eecd3e5f Mon Sep 17 00:00:00 2001 From: Sepherosa Ziehau Date: Mon, 21 Nov 2016 05:41:08 +0000 Subject: [PATCH] hyperv/hn: Allow enabling IPv6 TX checksum offloading and IPv6 TSO. They are still disabled by default. MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8490 --- sys/dev/hyperv/netvsc/hn_rndis.c | 2 -- sys/dev/hyperv/netvsc/if_hn.c | 9 +++++++-- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/sys/dev/hyperv/netvsc/hn_rndis.c b/sys/dev/hyperv/netvsc/hn_rndis.c index 1c140f9be4d4..fa749d31bb96 100644 --- a/sys/dev/hyperv/netvsc/hn_rndis.c +++ b/sys/dev/hyperv/netvsc/hn_rndis.c @@ -602,7 +602,6 @@ hn_rndis_conf_offload(struct hn_softc *sc, int mtu) if ((hwcaps.ndis_lsov2.ndis_ip6_encap & NDIS_OFFLOAD_ENCAP_8023) && (hwcaps.ndis_lsov2.ndis_ip6_opts & HN_NDIS_LSOV2_CAP_IP6) == HN_NDIS_LSOV2_CAP_IP6) { -#ifdef notyet caps |= HN_CAP_TSO6; params.ndis_lsov2_ip6 = NDIS_OFFLOAD_LSOV2_ON; @@ -610,7 +609,6 @@ hn_rndis_conf_offload(struct hn_softc *sc, int mtu) tso_maxsz = hwcaps.ndis_lsov2.ndis_ip6_maxsz; if (hwcaps.ndis_lsov2.ndis_ip6_minsg > tso_minsg) tso_minsg = hwcaps.ndis_lsov2.ndis_ip6_minsg; -#endif } sc->hn_ndis_tso_szmax = 0; sc->hn_ndis_tso_sgmin = 0; diff --git a/sys/dev/hyperv/netvsc/if_hn.c b/sys/dev/hyperv/netvsc/if_hn.c index be5aafabd7b9..a5bb790d4d7f 100644 --- a/sys/dev/hyperv/netvsc/if_hn.c +++ b/sys/dev/hyperv/netvsc/if_hn.c @@ -1127,6 +1127,13 @@ hn_attach(device_t dev) /* Enable all available capabilities by default. */ ifp->if_capenable = ifp->if_capabilities; + /* + * Disable IPv6 TSO and TXCSUM by default, they still can + * be enabled through SIOCSIFCAP. + */ + ifp->if_capenable &= ~(IFCAP_TXCSUM_IPV6 | IFCAP_TSO6); + ifp->if_hwassist &= ~(HN_CSUM_IP6_MASK | CSUM_IP6_TSO); + if (ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) { hn_set_tso_maxsize(sc, hn_tso_maxlen, ETHERMTU); ifp->if_hw_tsomaxsegcount = HN_TX_DATA_SEGCNT_MAX; @@ -3646,12 +3653,10 @@ hn_fixup_tx_data(struct hn_softc *sc) csum_assist |= CSUM_IP_TCP; if (sc->hn_caps & HN_CAP_UDP4CS) csum_assist |= CSUM_IP_UDP; -#ifdef notyet if (sc->hn_caps & HN_CAP_TCP6CS) csum_assist |= CSUM_IP6_TCP; if (sc->hn_caps & HN_CAP_UDP6CS) csum_assist |= CSUM_IP6_UDP; -#endif for (i = 0; i < sc->hn_tx_ring_cnt; ++i) sc->hn_tx_ring[i].hn_csum_assist = csum_assist;