Date: Tue, 2 Feb 2016 10:22:29 +0000 From: "sepherosa_gmail.com (Sepherosa Ziehau)" <phabric-noreply@FreeBSD.org> To: freebsd-net@freebsd.org Subject: [Differential] [Request, 28 lines] D5166: hyperv/hn: Increase LRO entry count to 128 by default Message-ID: <differential-rev-PHID-DREV-d5qgyne332qk35iu2t6d-req@FreeBSD.org>
index | next in thread | raw e-mail
[-- Attachment #1 --] sepherosa_gmail.com created this revision. sepherosa_gmail.com added reviewers: network, adrian, delphij, royger, decui_microsoft.com, honzhan_microsoft.com, howard0su_gmail.com. sepherosa_gmail.com added a subscriber: freebsd-net-list. REVISION SUMMARY hn(4) only has one RX ring, so default 8 LRO entries are too small. REVISION DETAIL https://reviews.freebsd.org/D5166 AFFECTED FILES sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c CHANGE DETAILS diff --git a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c --- a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c +++ b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c @@ -132,6 +132,8 @@ /* 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 @@ 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 @@ #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 @@ } #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 @@ 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 PREFERENCES https://reviews.freebsd.org/settings/panel/emailpreferences/ To: sepherosa_gmail.com, network, adrian, delphij, royger, decui_microsoft.com, honzhan_microsoft.com, howard0su_gmail.com Cc: freebsd-net-list [-- Attachment #2 --] diff --git a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c --- a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c +++ b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c @@ -132,6 +132,8 @@ /* 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 @@ 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 @@ #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 @@ } #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 @@ 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);home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?differential-rev-PHID-DREV-d5qgyne332qk35iu2t6d-req>