mirror of
https://git.proxmox.com/git/mirror_iproute2
synced 2025-11-04 08:25:08 +00:00
c86f34942a
add DRR support This patch adds support for the DRR scheduler I just sent to iproute. Signed-off-by: Patrick McHardy <kaber@trash.net>
125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*
|
|
* q_drr.c DRR.
|
|
*
|
|
* 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: Patrick McHardy <kaber@trash.net>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <syslog.h>
|
|
#include <fcntl.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: ... drr\n");
|
|
}
|
|
|
|
static void explain2(void)
|
|
{
|
|
fprintf(stderr, "Usage: ... drr quantum SIZE\n");
|
|
}
|
|
|
|
#define usage() return(-1)
|
|
|
|
static int drr_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
|
|
{
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "help") == 0) {
|
|
explain();
|
|
return -1;
|
|
} else {
|
|
fprintf(stderr, "What is \"%s\"?\n", *argv);
|
|
explain();
|
|
return -1;
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int drr_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
|
|
struct nlmsghdr *n)
|
|
{
|
|
struct rtattr *tail;
|
|
__u32 tmp;
|
|
|
|
tail = NLMSG_TAIL(n);
|
|
addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "quantum") == 0) {
|
|
NEXT_ARG();
|
|
if (get_size(&tmp, *argv)) {
|
|
fprintf(stderr, "Illegal \"quantum\"\n");
|
|
return -1;
|
|
}
|
|
addattr_l(n, 1024, TCA_DRR_QUANTUM, &tmp, sizeof(tmp));
|
|
} else if (strcmp(*argv, "help") == 0) {
|
|
explain2();
|
|
return -1;
|
|
} else {
|
|
fprintf(stderr, "What is \"%s\"?\n", *argv);
|
|
explain2();
|
|
return -1;
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
|
|
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *)tail;
|
|
return 0;
|
|
}
|
|
|
|
static int drr_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
|
|
{
|
|
struct rtattr *tb[TCA_DRR_MAX + 1];
|
|
SPRINT_BUF(b1);
|
|
|
|
if (opt == NULL)
|
|
return 0;
|
|
|
|
parse_rtattr_nested(tb, TCA_DRR_MAX, opt);
|
|
|
|
if (tb[TCA_DRR_QUANTUM])
|
|
fprintf(f, "quantum %s ",
|
|
sprint_size(*(__u32 *)RTA_DATA(tb[TCA_DRR_QUANTUM]), b1));
|
|
return 0;
|
|
}
|
|
|
|
static int drr_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
|
|
{
|
|
struct tc_drr_stats *x;
|
|
SPRINT_BUF(b1);
|
|
|
|
if (xstats == NULL)
|
|
return 0;
|
|
if (RTA_PAYLOAD(xstats) < sizeof(*x))
|
|
return -1;
|
|
x = RTA_DATA(xstats);
|
|
|
|
fprintf(f, " deficit %s ", sprint_size(x->deficit, b1));
|
|
return 0;
|
|
}
|
|
|
|
struct qdisc_util drr_qdisc_util = {
|
|
.id = "drr",
|
|
.parse_qopt = drr_parse_opt,
|
|
.print_qopt = drr_print_opt,
|
|
.print_xstats = drr_print_xstats,
|
|
.parse_copt = drr_parse_class_opt,
|
|
.print_copt = drr_print_opt,
|
|
};
|