Add esfq to iproute2 and 2.4 kernel (#1891)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7612 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 295 insertions, 0 deletions

diff --git a/package/iproute2/patches/006-iproute2-tc_esfq.patch b/package/iproute2/patches/006-iproute2-tc_esfq.patch
new file mode 100644
index 0000000000..d0347549dd
--- /dev/null
+++ b/package/iproute2/patches/006-iproute2-tc_esfq.patch
@@ -0,0 +1,295 @@
+diff -urN --exclude=.svn iproute2-2.6.11-050330/include/linux/pkt_sched.h iproute2-2.6.11-050330/include/linux/pkt_sched.h
+--- iproute2-2.6.11-050330/include/linux/pkt_sched.h	2007-05-04 22:21:48.000000000 -0400
++++ iproute2-2.6.11-050330/include/linux/pkt_sched.h	2007-05-04 22:27:12.000000000 -0400
+@@ -174,8 +174,38 @@
+  *
+  *	The only reason for this is efficiency, it is possible
+  *	to change these parameters in compile time.
++ *
++ *	If you need to play with these values use esfq instead.
+  */
+ 
++/* ESFQ section */
++
++enum
++{
++	/* traditional */
++	TCA_SFQ_HASH_CLASSIC,
++	TCA_SFQ_HASH_DST,
++	TCA_SFQ_HASH_SRC,
++	/* conntrack */
++	TCA_SFQ_HASH_CTORIGDST,
++	TCA_SFQ_HASH_CTORIGSRC,
++	TCA_SFQ_HASH_CTREPLDST,
++	TCA_SFQ_HASH_CTREPLSRC,
++	TCA_SFQ_HASH_CTNATCHG,
++};
++
++struct tc_esfq_qopt
++{
++	unsigned	quantum;	/* Bytes per round allocated to flow */
++	int		perturb_period;	/* Period of hash perturbation */
++	__u32		limit;		/* Maximal packets in queue */
++	unsigned	divisor;	/* Hash divisor  */
++	unsigned	flows;		/* Maximal number of flows  */
++	unsigned        hash_kind;      /* Hash function to use for flow identification */
++};
++
++
++
+ /* RED section */
+ 
+ enum
+@@ -551,8 +580,37 @@
+  *
+  *	The only reason for this is efficiency, it is possible
+  *	to change these parameters in compile time.
++ *
++ *	If you need to play with these values use esfq instead.
+  */
+ 
++/* ESFQ section */
++
++enum
++{
++	/* traditional */
++	TCA_SFQ_HASH_CLASSIC,
++	TCA_SFQ_HASH_DST,
++	TCA_SFQ_HASH_SRC,
++	/* conntrack */
++	TCA_SFQ_HASH_CTORIGDST,
++	TCA_SFQ_HASH_CTORIGSRC,
++	TCA_SFQ_HASH_CTREPLDST,
++	TCA_SFQ_HASH_CTREPLSRC,
++	TCA_SFQ_HASH_CTNATCHG,
++};
++
++struct tc_esfq_qopt
++{
++	unsigned	quantum;	/* Bytes per round allocated to flow */
++	int		perturb_period;	/* Period of hash perturbation */
++	__u32		limit;		/* Maximal packets in queue */
++	unsigned	divisor;	/* Hash divisor  */
++	unsigned	flows;		/* Maximal number of flows  */
++	unsigned        hash_kind;      /* Hash function to use for flow identification */
++};
++
++
+ /* RED section */
+ 
+ enum
+diff -urN --exclude=.svn iproute2-2.6.11-050330/tc/Makefile iproute2-2.6.11-050330/tc/Makefile
+--- iproute2-2.6.11-050330/tc/Makefile	2007-05-04 22:21:48.000000000 -0400
++++ iproute2-2.6.11-050330/tc/Makefile	2007-05-04 22:27:37.000000000 -0400
+@@ -6,6 +6,7 @@
+ TCMODULES :=
+ TCMODULES += q_fifo.o
+ TCMODULES += q_sfq.o
++TCMODULES += q_esfq.o
+ TCMODULES += q_red.o
+ TCMODULES += q_prio.o
+ TCMODULES += q_tbf.o
+diff -urN --exclude=.svn iproute2-2.6.11-050330/tc/q_esfq.c iproute2-2.6.11-050330/tc/q_esfq.c
+--- iproute2-2.6.11-050330/tc/q_esfq.c	1969-12-31 19:00:00.000000000 -0500
++++ iproute2-2.6.11-050330/tc/q_esfq.c	2007-05-04 22:37:54.000000000 -0400
+@@ -0,0 +1,200 @@
++/*
++ * q_esfq.c		ESFQ.
++ *
++ *		This program is free software; you can redistribute it and/or
++ *		modify it under the terms of the GNU General Public License
++ *		as published by the Free Software Foundation; either version
++ *		2 of the License, or (at your option) any later version.
++ *
++ * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
++ *
++ * Changes:	Alexander Atanasov, <alex@ssi.bg>
++ *		Alexander Clouter, <alex@digriz.org.uk>
++ *		Corey Hickey, <bugfood-c@fatooh.org>
++ *
++ */
++
++#include <stdio.h>
++#include <stdlib.h>
++#include <unistd.h>
++#include <syslog.h>
++#include <fcntl.h>
++#include <math.h> 
++#include <sys/socket.h>
++#include <netinet/in.h>
++#include <arpa/inet.h>
++#include <string.h>
++
++#include "utils.h"
++#include "tc_util.h"
++
++static void explain(void)
++{
++	fprintf(stderr, "Usage: ... esfq [ perturb SECS ] [ quantum BYTES ] [ depth FLOWS ]\n\t[ divisor HASHBITS ] [ limit PKTS ] [ hash HASHTYPE]\n");
++	fprintf(stderr,"Where: \n");
++	fprintf(stderr,"HASHTYPE := { classic | src | dst | ctorigdst | ctorigsrc | ctrepldst | ctreplsrc | ctnatchg }\n");
++}
++
++#define usage() return(-1)
++
++static int esfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
++{
++	int ok=0;
++	struct tc_esfq_qopt opt;
++
++	memset(&opt, 0, sizeof(opt));
++
++	opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
++	
++	while (argc > 0) {
++		if (strcmp(*argv, "quantum") == 0) {
++			NEXT_ARG();
++			if (get_size(&opt.quantum, *argv)) {
++				fprintf(stderr, "Illegal \"quantum\"\n");
++				return -1;
++			}
++			ok++;
++		} else if (strcmp(*argv, "perturb") == 0) {
++			NEXT_ARG();
++			if (get_integer(&opt.perturb_period, *argv, 0)) {
++				fprintf(stderr, "Illegal \"perturb\"\n");
++				return -1;
++			}
++			ok++;
++		} else if (strcmp(*argv, "depth") == 0) {
++			NEXT_ARG();
++			if (get_integer((int *) &opt.flows, *argv, 0)) {
++				fprintf(stderr, "Illegal \"depth\"\n");
++				return -1;
++			}
++			ok++;
++		} else if (strcmp(*argv, "divisor") == 0) {
++			NEXT_ARG();
++			if (get_integer((int *) &opt.divisor, *argv, 0)) {
++				fprintf(stderr, "Illegal \"divisor\"\n");
++				return -1;
++			}
++			if(opt.divisor >= 14) {
++				fprintf(stderr, "Illegal \"divisor\": must be < 14\n");
++				return -1;
++			}
++			opt.divisor=pow(2,opt.divisor);
++			ok++;
++		} else if (strcmp(*argv, "limit") == 0) {
++			NEXT_ARG();
++			if (get_integer((int *) &opt.limit, *argv, 0)) {
++				fprintf(stderr, "Illegal \"limit\"\n");
++				return -1;
++			}
++			ok++;
++		} else if (strcmp(*argv, "hash") == 0) {
++			NEXT_ARG();
++			if(strcmp(*argv, "classic") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
++			} else 
++			if(strcmp(*argv, "dst") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_DST;
++			} else
++			if(strcmp(*argv, "src") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_SRC;
++			} else
++			if(strcmp(*argv, "ctorigsrc") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CTORIGSRC;
++			} else
++			if(strcmp(*argv, "ctorigdst") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CTORIGDST;
++			} else
++			if(strcmp(*argv, "ctreplsrc") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CTREPLSRC;
++			} else
++			if(strcmp(*argv, "ctrepldst") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CTREPLDST;
++			} else
++			if(strcmp(*argv, "ctnatchg") == 0) {
++				opt.hash_kind= TCA_SFQ_HASH_CTNATCHG;
++			} else {
++				fprintf(stderr, "Illegal \"hash\"\n");
++				explain();
++				return -1;
++			}
++			ok++;
++		} else if (strcmp(*argv, "help") == 0) {
++			explain();
++			return -1;
++		} else {
++			fprintf(stderr, "What is \"%s\"?\n", *argv);
++			explain();
++			return -1;
++		}
++		argc--; argv++;
++	}
++
++	if (ok)
++		addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
++	return 0;
++}
++
++static int esfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
++{
++	struct tc_esfq_qopt *qopt;
++	SPRINT_BUF(b1);
++
++	if (opt == NULL)
++		return 0;
++
++	if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
++		return -1;
++	qopt = RTA_DATA(opt);
++	fprintf(f, "quantum %s ", sprint_size(qopt->quantum, b1));
++	if (show_details) {
++		fprintf(f, "limit %up flows %u/%u ",
++			qopt->limit, qopt->flows, qopt->divisor);
++	}
++	if (qopt->perturb_period)
++		fprintf(f, "perturb %dsec ", qopt->perturb_period);
++
++		fprintf(f,"hash: ");
++	switch(qopt->hash_kind)
++	{
++	case TCA_SFQ_HASH_CLASSIC:
++		fprintf(f,"classic");
++		break;
++	case TCA_SFQ_HASH_DST:
++		fprintf(f,"dst");
++		break;
++	case TCA_SFQ_HASH_SRC:
++		fprintf(f,"src");
++		break;
++	case TCA_SFQ_HASH_CTORIGSRC:
++		fprintf(f,"ctorigsrc");
++		break;
++	case TCA_SFQ_HASH_CTORIGDST:
++		fprintf(f,"ctorigdst");
++		break;
++	case TCA_SFQ_HASH_CTREPLSRC:
++		fprintf(f,"ctreplsrc");
++		break;
++	case TCA_SFQ_HASH_CTREPLDST:
++		fprintf(f,"ctrepldst");
++		break;
++	case TCA_SFQ_HASH_CTNATCHG:
++		fprintf(f,"ctnatchg");
++		break;
++	default:
++		fprintf(f,"Unknown");
++	}
++	return 0;
++}
++
++static int esfq_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
++{
++	return 0;
++}
++
++
++struct qdisc_util esfq_qdisc_util = {
++	.id = "esfq",
++	.parse_qopt = esfq_parse_opt,
++	.print_qopt = esfq_print_opt,
++	.print_xstats = esfq_print_xstats,
++};