From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cong Wang Subject: [Patch iproute2] add quickack option to ip route Date: Thu, 13 Jun 2013 14:24:03 +0800 Message-ID: <1371104643-24076-2-git-send-email-amwang@redhat.com> References: <1371104643-24076-1-git-send-email-amwang@redhat.com> Cc: Stephen Hemminger , "David S. Miller" , Thomas Graf , Cong Wang To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:48327 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752381Ab3FMGYt (ORCPT ); Thu, 13 Jun 2013 02:24:49 -0400 In-Reply-To: <1371104643-24076-1-git-send-email-amwang@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Cong Wang This patch adds quickack option to enable/disable TCP quick ack mode for per-route. Cc: Stephen Hemminger Cc: "David S. Miller" Cc: Thomas Graf Signed-off-by: Cong Wang --- diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 93370bd..248fdd3 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -386,6 +386,8 @@ enum { #define RTAX_RTO_MIN RTAX_RTO_MIN RTAX_INITRWND, #define RTAX_INITRWND RTAX_INITRWND + RTAX_QUICKACK, +#define RTAX_QUICKACK RTAX_QUICKACK __RTAX_MAX }; diff --git a/ip/iproute.c b/ip/iproute.c index adef774..46710b2 100644 --- a/ip/iproute.c +++ b/ip/iproute.c @@ -52,6 +52,7 @@ static const char *mx_names[RTAX_MAX+1] = { [RTAX_FEATURES] = "features", [RTAX_RTO_MIN] = "rto_min", [RTAX_INITRWND] = "initrwnd", + [RTAX_QUICKACK] = "quickack", }; static void usage(void) __attribute__((noreturn)); @@ -79,6 +80,7 @@ static void usage(void) fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n"); fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n"); fprintf(stderr, " [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n"); + fprintf(stderr, " [ quickack BOOL ]\n"); fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n"); fprintf(stderr, " unreachable | prohibit | blackhole | nat ]\n"); fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n"); @@ -86,6 +88,7 @@ static void usage(void) fprintf(stderr, "NHFLAGS := [ onlink | pervasive ]\n"); fprintf(stderr, "RTPROTO := [ kernel | boot | static | NUMBER ]\n"); fprintf(stderr, "TIME := NUMBER[s|ms]\n"); + fprintf(stderr, "BOOL := [1|0]\n"); exit(-1); } @@ -885,6 +888,14 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv) if (get_unsigned(&win, *argv, 0)) invarg("\"initrwnd\" value is invalid\n", *argv); rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITRWND, win); + } else if (matches(*argv, "quickack") == 0) { + unsigned quickack; + NEXT_ARG(); + if (get_unsigned(&quickack, *argv, 0)) + invarg("\"quickack\" value is invalid\n", *argv); + if (quickack != 1 && quickack != 0) + invarg("\"quickack\" value should be 0 or 1\n", *argv); + rta_addattr32(mxrta, sizeof(mxbuf), RTAX_QUICKACK, quickack); } else if (matches(*argv, "rttvar") == 0) { unsigned win; NEXT_ARG(); diff --git a/man/man8/ip-route.8.in b/man/man8/ip-route.8.in index 2c35a97..01997fa 100644 --- a/man/man8/ip-route.8.in +++ b/man/man8/ip-route.8.in @@ -111,6 +111,8 @@ replace " } " .IR NUMBER " ] [ " .B initrwnd .IR NUMBER " ]" +.B quickack +.IR BOOL " ]" .ti -8 .IR TYPE " := [ " @@ -401,6 +403,10 @@ Actual window size is this value multiplied by the MSS of the connection. The default value is zero, meaning to use Slow Start value. .TP +.BI quickack " BOOL " "(3.11+ only)" +Enable or disable quick ack for connections to this destination. + +.TP .BI advmss " NUMBER " "(2.3.15+ only)" the MSS ('Maximal Segment Size') to advertise to these destinations when establishing TCP connections. If it is not given,