Author: sephe Date: Mon Sep 19 07:47:56 2016 New Revision: 305967 URL: https://svnweb.freebsd.org/changeset/base/305967
Log: hyperv/hn: Allow RSS capability flipping upon attach/reinit. MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D7927 Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.h head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.h ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_net_vsc.h Mon Sep 19 07:39:42 2016 (r305966) +++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h Mon Sep 19 07:47:56 2016 (r305967) @@ -245,6 +245,8 @@ struct hn_softc { #define HN_FLAG_RXBUF_CONNECTED 0x0001 #define HN_FLAG_CHIM_CONNECTED 0x0002 +#define HN_FLAG_HAS_RSSKEY 0x0004 +#define HN_FLAG_HAS_RSSIND 0x0008 #define HN_CAP_VLAN 0x0001 #define HN_CAP_MTU 0x0002 Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Mon Sep 19 07:39:42 2016 (r305966) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Mon Sep 19 07:47:56 2016 (r305967) @@ -2146,6 +2146,7 @@ hn_rss_key_sysctl(SYSCTL_HANDLER_ARGS) error = SYSCTL_IN(req, sc->hn_rss.rss_key, sizeof(sc->hn_rss.rss_key)); if (error) goto back; + sc->hn_flags |= HN_FLAG_HAS_RSSKEY; if (sc->hn_rx_ring_inuse > 1) { error = hn_rss_reconfig(sc); @@ -2182,6 +2183,7 @@ hn_rss_ind_sysctl(SYSCTL_HANDLER_ARGS) error = SYSCTL_IN(req, sc->hn_rss.rss_ind, sizeof(sc->hn_rss.rss_ind)); if (error) goto back; + sc->hn_flags |= HN_FLAG_HAS_RSSIND; hn_rss_ind_fixup(sc, sc->hn_rx_ring_inuse); error = hn_rss_reconfig(sc); @@ -3335,24 +3337,29 @@ hn_synth_attach(struct hn_softc *sc, int * are allocated. */ - if (!device_is_attached(sc->hn_dev)) { + if ((sc->hn_flags & HN_FLAG_HAS_RSSKEY) == 0) { /* - * Setup default RSS key and indirect table for the - * attach DEVMETHOD. They can be altered later on, - * so don't mess them up once this interface is attached. + * RSS key is not set yet; set it to the default RSS key. */ - if (bootverbose) { - if_printf(sc->hn_ifp, "setup default RSS key and " - "indirect table\n"); - } - - /* Setup default RSS key. */ + if (bootverbose) + if_printf(sc->hn_ifp, "setup default RSS key\n"); memcpy(rss->rss_key, hn_rss_key_default, sizeof(rss->rss_key)); + sc->hn_flags |= HN_FLAG_HAS_RSSKEY; + } - /* Setup default RSS indirect table. */ + if ((sc->hn_flags & HN_FLAG_HAS_RSSIND) == 0) { + /* + * RSS indirect table is not set yet; set it up in round- + * robin fashion. + */ + if (bootverbose) { + if_printf(sc->hn_ifp, "setup default RSS indirect " + "table\n"); + } /* TODO: Take ndis_rss_caps.ndis_nind into account. */ for (i = 0; i < NDIS_HASH_INDCNT; ++i) rss->rss_ind[i] = i % nchan; + sc->hn_flags |= HN_FLAG_HAS_RSSIND; } else { /* * # of usable channels may be changed, so we have to _______________________________________________ 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"
