Author: sephe Date: Fri Feb 5 05:17:48 2016 New Revision: 295301 URL: https://svnweb.freebsd.org/changeset/base/295301
Log: hyperv/hn: Obey IFCAP_RXCSUM configure Reviewed by: adrian Approved by: adrian (mentor) MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5104 Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Fri Feb 5 05:12:30 2016 (r295300) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Fri Feb 5 05:17:48 2016 (r295301) @@ -1142,7 +1142,7 @@ netvsc_recv(struct hv_device *device_ctx struct mbuf *m_new; struct ifnet *ifp; device_t dev = device_ctx->device; - int size, do_lro = 0; + int size, do_lro = 0, do_csum = 1; if (sc == NULL) { return (0); /* TODO: KYS how can this be! */ @@ -1190,18 +1190,21 @@ netvsc_recv(struct hv_device *device_ctx } m_new->m_pkthdr.rcvif = ifp; + if (__predict_false((ifp->if_capenable & IFCAP_RXCSUM) == 0)) + do_csum = 0; + /* receive side checksum offload */ if (csum_info != NULL) { /* IP csum offload */ - if (csum_info->receive.ip_csum_succeeded) { + if (csum_info->receive.ip_csum_succeeded && do_csum) { m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID); sc->hn_csum_ip++; } /* TCP/UDP csum offload */ - if (csum_info->receive.tcp_csum_succeeded || - csum_info->receive.udp_csum_succeeded) { + if ((csum_info->receive.tcp_csum_succeeded || + csum_info->receive.udp_csum_succeeded) && do_csum) { m_new->m_pkthdr.csum_flags |= (CSUM_DATA_VALID | CSUM_PSEUDO_HDR); m_new->m_pkthdr.csum_data = 0xffff; @@ -1239,7 +1242,8 @@ netvsc_recv(struct hv_device *device_ctx pr = hn_check_iplen(m_new, hoff); if (pr == IPPROTO_TCP) { - if (sc->hn_trust_hcsum & HN_TRUST_HCSUM_TCP) { + if (do_csum && + (sc->hn_trust_hcsum & HN_TRUST_HCSUM_TCP)) { sc->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID | @@ -1249,14 +1253,15 @@ netvsc_recv(struct hv_device *device_ctx /* Rely on SW csum verification though... */ do_lro = 1; } else if (pr == IPPROTO_UDP) { - if (sc->hn_trust_hcsum & HN_TRUST_HCSUM_UDP) { + if (do_csum && + (sc->hn_trust_hcsum & HN_TRUST_HCSUM_UDP)) { sc->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID | CSUM_DATA_VALID | CSUM_PSEUDO_HDR); m_new->m_pkthdr.csum_data = 0xffff; } - } else if (pr != IPPROTO_DONE && + } else if (pr != IPPROTO_DONE && do_csum && (sc->hn_trust_hcsum & HN_TRUST_HCSUM_IP)) { sc->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
