Author: sephe Date: Fri Feb 5 05:38:01 2016 New Revision: 295304 URL: https://svnweb.freebsd.org/changeset/base/295304
Log: hyperv/hn: Increase LRO entry count to 128 by default hn(4) only has one RX ring currently, so default 8 LRO entries are too small. Reviewed by: adrian Approved by: adrian (mentor) MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5166 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 05:31:31 2016 (r295303) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Fri Feb 5 05:38:01 2016 (r295304) @@ -132,6 +132,8 @@ __FBSDID("$FreeBSD$"); /* YYY should get it from the underlying channel */ #define HN_TX_DESC_CNT 512 +#define HN_LROENT_CNT_DEF 128 + #define HN_RNDIS_MSG_LEN \ (sizeof(rndis_msg) + \ RNDIS_VLAN_PPI_SIZE + \ @@ -232,6 +234,13 @@ TUNABLE_INT("dev.hn.tx_chimney_size", &h static int hn_direct_tx_size = HN_DIRECT_TX_SIZE_DEF; TUNABLE_INT("dev.hn.direct_tx_size", &hn_direct_tx_size); +#if defined(INET) || defined(INET6) +#if __FreeBSD_version >= 1100095 +static int hn_lro_entry_count = HN_LROENT_CNT_DEF; +TUNABLE_INT("dev.hn.lro_entry_count", &hn_lro_entry_count); +#endif +#endif + /* * Forward declarations */ @@ -335,6 +344,11 @@ netvsc_attach(device_t dev) #if __FreeBSD_version >= 1100045 int tso_maxlen; #endif +#if defined(INET) || defined(INET6) +#if __FreeBSD_version >= 1100095 + int lroent_cnt; +#endif +#endif sc = device_get_softc(dev); if (sc == NULL) { @@ -417,9 +431,17 @@ netvsc_attach(device_t dev) } #if defined(INET) || defined(INET6) +#if __FreeBSD_version >= 1100095 + lroent_cnt = hn_lro_entry_count; + if (lroent_cnt < TCP_LRO_ENTRIES) + lroent_cnt = TCP_LRO_ENTRIES; + tcp_lro_init_args(&sc->hn_lro, ifp, lroent_cnt, 0); + device_printf(dev, "LRO: entry count %d\n", lroent_cnt); +#else tcp_lro_init(&sc->hn_lro); /* Driver private LRO settings */ sc->hn_lro.ifp = ifp; +#endif #ifdef HN_LRO_HIWAT sc->hn_lro.lro_hiwat = sc->hn_lro_hiwat; #endif @@ -547,6 +569,12 @@ netvsc_attach(device_t dev) SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "direct_tx_size", CTLFLAG_RD, &hn_direct_tx_size, 0, "Size of the packet for direct transmission"); +#if defined(INET) || defined(INET6) +#if __FreeBSD_version >= 1100095 + SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "lro_entry_count", + CTLFLAG_RD, &hn_lro_entry_count, 0, "LRO entry count"); +#endif +#endif } return (0); _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
