Author: dexuan Date: Thu Feb 23 06:49:46 2017 New Revision: 314121 URL: https://svnweb.freebsd.org/changeset/base/314121
Log: MFC: r312685, r312686 Approved by: sephe (mentor) r312685 hyperv/hn: remember the channel pointer in struct hn_rx_ring This will be used by the coming NIC SR-IOV patch. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8909 r312686 hyperv/hn: remove the MTU and IFF_DRV_RUNNING checking in hn_rxpkt() It's unnecessary because the upper nework stack does the same checking. In the case of Hyper-V SR-IOV, we need to remove the checking because 1) multicast/broadcast packets are still received through the synthetic NIC and we need to inject the packets through the VF interface; 2) we must inject the packets even if the synthetic NIC is down, or has a different MTU from the VF device. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8962 Modified: stable/10/sys/dev/hyperv/netvsc/if_hn.c stable/10/sys/dev/hyperv/netvsc/if_hnvar.h Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/hyperv/netvsc/if_hn.c ============================================================================== --- stable/10/sys/dev/hyperv/netvsc/if_hn.c Thu Feb 23 05:40:59 2017 (r314120) +++ stable/10/sys/dev/hyperv/netvsc/if_hn.c Thu Feb 23 06:49:46 2017 (r314121) @@ -2118,15 +2118,7 @@ hn_rxpkt(struct hn_rx_ring *rxr, const v int size, do_lro = 0, do_csum = 1; int hash_type = M_HASHTYPE_OPAQUE; - if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) - return (0); - - /* - * Bail out if packet contains more data than configured MTU. - */ - if (dlen > (ifp->if_mtu + ETHER_HDR_LEN)) { - return (0); - } else if (dlen <= MHLEN) { + if (dlen <= MHLEN) { m_new = m_gethdr(M_NOWAIT, MT_DATA); if (m_new == NULL) { if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); @@ -4297,6 +4289,7 @@ hn_chan_attach(struct hn_softc *sc, stru KASSERT((rxr->hn_rx_flags & HN_RX_FLAG_ATTACHED) == 0, ("RX ring %d already attached", idx)); rxr->hn_rx_flags |= HN_RX_FLAG_ATTACHED; + rxr->hn_chan = chan; if (bootverbose) { if_printf(sc->hn_ifp, "link RX ring %d to chan%u\n", Modified: stable/10/sys/dev/hyperv/netvsc/if_hnvar.h ============================================================================== --- stable/10/sys/dev/hyperv/netvsc/if_hnvar.h Thu Feb 23 05:40:59 2017 (r314120) +++ stable/10/sys/dev/hyperv/netvsc/if_hnvar.h Thu Feb 23 06:49:46 2017 (r314121) @@ -85,6 +85,8 @@ struct hn_rx_ring { void *hn_br; /* TX/RX bufring */ struct hyperv_dma hn_br_dma; + + struct vmbus_channel *hn_chan; } __aligned(CACHE_LINE_SIZE); #define HN_TRUST_HCSUM_IP 0x0001 _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"