Date: Thu, 1 Sep 2016 07:41:49 +0000 (UTC) From: Sepherosa Ziehau <sephe@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r305187 - stable/11/sys/netinet Message-ID: <201609010741.u817fnmd051053@repo.freebsd.org>
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Author: sephe Date: Thu Sep 1 07:41:49 2016 New Revision: 305187 URL: https://svnweb.freebsd.org/changeset/base/305187 Log: MFC 304202 tcp/lro: Make # of LRO entries tunable Reviewed by: hps, gallatin Obtained from: rrs, gallatin Sponsored by: Netflix (rrs, gallatin), Microsoft (sephe) Differential Revision: https://reviews.freebsd.org/D7499 Modified: stable/11/sys/netinet/tcp_lro.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netinet/tcp_lro.c ============================================================================== --- stable/11/sys/netinet/tcp_lro.c Thu Sep 1 07:23:47 2016 (r305186) +++ stable/11/sys/netinet/tcp_lro.c Thu Sep 1 07:41:49 2016 (r305187) @@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$"); #include <sys/malloc.h> #include <sys/mbuf.h> #include <sys/socket.h> +#include <sys/sysctl.h> #include <net/if.h> #include <net/if_var.h> @@ -55,6 +56,7 @@ __FBSDID("$FreeBSD$"); #include <netinet/ip_var.h> #include <netinet/tcp.h> #include <netinet/tcp_lro.h> +#include <netinet/tcp_var.h> #include <netinet6/ip6_var.h> @@ -69,6 +71,14 @@ static MALLOC_DEFINE(M_LRO, "LRO", "LRO static void tcp_lro_rx_done(struct lro_ctrl *lc); +SYSCTL_NODE(_net_inet_tcp, OID_AUTO, lro, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, + "TCP LRO"); + +static unsigned tcp_lro_entries = TCP_LRO_ENTRIES; +SYSCTL_UINT(_net_inet_tcp_lro, OID_AUTO, entries, + CTLFLAG_RDTUN | CTLFLAG_MPSAFE, &tcp_lro_entries, 0, + "default number of LRO entries"); + static __inline void tcp_lro_active_insert(struct lro_ctrl *lc, struct lro_entry *le) { @@ -86,7 +96,7 @@ tcp_lro_active_remove(struct lro_entry * int tcp_lro_init(struct lro_ctrl *lc) { - return (tcp_lro_init_args(lc, NULL, TCP_LRO_ENTRIES, 0)); + return (tcp_lro_init_args(lc, NULL, tcp_lro_entries, 0)); } int
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