freebsd-dev/sbin/ifconfig/iflagg.c
Andrew Gallatin 35961dce98 Select lacp egress ports based on NUMA domain
This change creates an array of port maps indexed by numa domain
for lacp port selection. If we have lacp interfaces in more than
one domain, then we select the egress port by indexing into the
numa port maps and picking a port on the appropriate numa domain.

This is behavior is controlled by the new ifconfig use_numa flag
and net.link.lagg.use_numa sysctl/tunable (both modeled after the
existing use_flowid), which default to enabled.

Reviewed by:	bz, hselasky, markj (and scottl, earlier version)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20060
2019-05-03 14:43:21 +00:00

336 lines
8.4 KiB
C

/*-
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <stdlib.h>
#include <unistd.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_lagg.h>
#include <net/ieee8023ad_lacp.h>
#include <net/route.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include "ifconfig.h"
char lacpbuf[120]; /* LACP peer '[(a,a,a),(p,p,p)]' */
static void
setlaggport(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqport rp;
bzero(&rp, sizeof(rp));
strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
/*
* Do not exit with an error here. Doing so permits a
* failed NIC to take down an entire lagg.
*
* Don't error at all if the port is already in the lagg.
*/
if (ioctl(s, SIOCSLAGGPORT, &rp) && errno != EEXIST) {
warnx("%s %s: SIOCSLAGGPORT: %s",
name, val, strerror(errno));
exit_code = 1;
}
}
static void
unsetlaggport(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqport rp;
bzero(&rp, sizeof(rp));
strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
if (ioctl(s, SIOCSLAGGDELPORT, &rp))
err(1, "SIOCSLAGGDELPORT");
}
static void
setlaggproto(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct lagg_reqall ra;
int i;
bzero(&ra, sizeof(ra));
ra.ra_proto = LAGG_PROTO_MAX;
for (i = 0; i < nitems(lpr); i++) {
if (strcmp(val, lpr[i].lpr_name) == 0) {
ra.ra_proto = lpr[i].lpr_proto;
break;
}
}
if (ra.ra_proto == LAGG_PROTO_MAX)
errx(1, "Invalid aggregation protocol: %s", val);
strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname));
if (ioctl(s, SIOCSLAGG, &ra) != 0)
err(1, "SIOCSLAGG");
}
static void
setlaggflowidshift(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqopts ro;
bzero(&ro, sizeof(ro));
ro.ro_opts = LAGG_OPT_FLOWIDSHIFT;
strlcpy(ro.ro_ifname, name, sizeof(ro.ro_ifname));
ro.ro_flowid_shift = (int)strtol(val, NULL, 10);
if (ro.ro_flowid_shift & ~LAGG_OPT_FLOWIDSHIFT_MASK)
errx(1, "Invalid flowid_shift option: %s", val);
if (ioctl(s, SIOCSLAGGOPTS, &ro) != 0)
err(1, "SIOCSLAGGOPTS");
}
static void
setlaggrr_limit(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqopts ro;
bzero(&ro, sizeof(ro));
strlcpy(ro.ro_ifname, name, sizeof(ro.ro_ifname));
ro.ro_bkt = (int)strtol(val, NULL, 10);
if (ioctl(s, SIOCSLAGGOPTS, &ro) != 0)
err(1, "SIOCSLAGG");
}
static void
setlaggsetopt(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqopts ro;
bzero(&ro, sizeof(ro));
ro.ro_opts = d;
switch (ro.ro_opts) {
case LAGG_OPT_USE_FLOWID:
case -LAGG_OPT_USE_FLOWID:
case LAGG_OPT_USE_NUMA:
case -LAGG_OPT_USE_NUMA:
case LAGG_OPT_LACP_STRICT:
case -LAGG_OPT_LACP_STRICT:
case LAGG_OPT_LACP_TXTEST:
case -LAGG_OPT_LACP_TXTEST:
case LAGG_OPT_LACP_RXTEST:
case -LAGG_OPT_LACP_RXTEST:
case LAGG_OPT_LACP_TIMEOUT:
case -LAGG_OPT_LACP_TIMEOUT:
break;
default:
err(1, "Invalid lagg option");
}
strlcpy(ro.ro_ifname, name, sizeof(ro.ro_ifname));
if (ioctl(s, SIOCSLAGGOPTS, &ro) != 0)
err(1, "SIOCSLAGGOPTS");
}
static void
setlagghash(const char *val, int d, int s, const struct afswtch *afp)
{
struct lagg_reqflags rf;
char *str, *tmp, *tok;
rf.rf_flags = 0;
str = tmp = strdup(val);
while ((tok = strsep(&tmp, ",")) != NULL) {
if (strcmp(tok, "l2") == 0)
rf.rf_flags |= LAGG_F_HASHL2;
else if (strcmp(tok, "l3") == 0)
rf.rf_flags |= LAGG_F_HASHL3;
else if (strcmp(tok, "l4") == 0)
rf.rf_flags |= LAGG_F_HASHL4;
else
errx(1, "Invalid lagghash option: %s", tok);
}
free(str);
if (rf.rf_flags == 0)
errx(1, "No lagghash options supplied");
strlcpy(rf.rf_ifname, name, sizeof(rf.rf_ifname));
if (ioctl(s, SIOCSLAGGHASH, &rf))
err(1, "SIOCSLAGGHASH");
}
static char *
lacp_format_mac(const uint8_t *mac, char *buf, size_t buflen)
{
snprintf(buf, buflen, "%02X-%02X-%02X-%02X-%02X-%02X",
(int)mac[0], (int)mac[1], (int)mac[2], (int)mac[3],
(int)mac[4], (int)mac[5]);
return (buf);
}
static char *
lacp_format_peer(struct lacp_opreq *req, const char *sep)
{
char macbuf1[20];
char macbuf2[20];
snprintf(lacpbuf, sizeof(lacpbuf),
"[(%04X,%s,%04X,%04X,%04X),%s(%04X,%s,%04X,%04X,%04X)]",
req->actor_prio,
lacp_format_mac(req->actor_mac, macbuf1, sizeof(macbuf1)),
req->actor_key, req->actor_portprio, req->actor_portno, sep,
req->partner_prio,
lacp_format_mac(req->partner_mac, macbuf2, sizeof(macbuf2)),
req->partner_key, req->partner_portprio, req->partner_portno);
return(lacpbuf);
}
static void
lagg_status(int s)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct lagg_reqport rpbuf[LAGG_MAX_PORTS];
struct lagg_reqall ra;
struct lagg_reqopts ro;
struct lagg_reqflags rf;
struct lacp_opreq *lp;
const char *proto = "<unknown>";
int i;
bzero(&ra, sizeof(ra));
bzero(&ro, sizeof(ro));
strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname));
ra.ra_size = sizeof(rpbuf);
ra.ra_port = rpbuf;
strlcpy(ro.ro_ifname, name, sizeof(ro.ro_ifname));
ioctl(s, SIOCGLAGGOPTS, &ro);
strlcpy(rf.rf_ifname, name, sizeof(rf.rf_ifname));
if (ioctl(s, SIOCGLAGGFLAGS, &rf) != 0)
rf.rf_flags = 0;
if (ioctl(s, SIOCGLAGG, &ra) == 0) {
lp = (struct lacp_opreq *)&ra.ra_lacpreq;
for (i = 0; i < nitems(lpr); i++) {
if (ra.ra_proto == lpr[i].lpr_proto) {
proto = lpr[i].lpr_name;
break;
}
}
printf("\tlaggproto %s", proto);
if (rf.rf_flags & LAGG_F_HASHMASK) {
const char *sep = "";
printf(" lagghash ");
if (rf.rf_flags & LAGG_F_HASHL2) {
printf("%sl2", sep);
sep = ",";
}
if (rf.rf_flags & LAGG_F_HASHL3) {
printf("%sl3", sep);
sep = ",";
}
if (rf.rf_flags & LAGG_F_HASHL4) {
printf("%sl4", sep);
sep = ",";
}
}
putchar('\n');
if (verbose) {
printf("\tlagg options:\n");
printb("\t\tflags", ro.ro_opts, LAGG_OPT_BITS);
putchar('\n');
printf("\t\tflowid_shift: %d\n", ro.ro_flowid_shift);
if (ra.ra_proto == LAGG_PROTO_ROUNDROBIN)
printf("\t\trr_limit: %d\n", ro.ro_bkt);
printf("\tlagg statistics:\n");
printf("\t\tactive ports: %d\n", ro.ro_active);
printf("\t\tflapping: %u\n", ro.ro_flapping);
if (ra.ra_proto == LAGG_PROTO_LACP) {
printf("\tlag id: %s\n",
lacp_format_peer(lp, "\n\t\t "));
}
}
for (i = 0; i < ra.ra_ports; i++) {
lp = (struct lacp_opreq *)&rpbuf[i].rp_lacpreq;
printf("\tlaggport: %s ", rpbuf[i].rp_portname);
printb("flags", rpbuf[i].rp_flags, LAGG_PORT_BITS);
if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
printb(" state", lp->actor_state,
LACP_STATE_BITS);
putchar('\n');
if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
printf("\t\t%s\n",
lacp_format_peer(lp, "\n\t\t "));
}
if (0 /* XXX */) {
printf("\tsupported aggregation protocols:\n");
for (i = 0; i < nitems(lpr); i++)
printf("\t\tlaggproto %s\n", lpr[i].lpr_name);
}
}
}
static struct cmd lagg_cmds[] = {
DEF_CMD_ARG("laggport", setlaggport),
DEF_CMD_ARG("-laggport", unsetlaggport),
DEF_CMD_ARG("laggproto", setlaggproto),
DEF_CMD_ARG("lagghash", setlagghash),
DEF_CMD("use_flowid", LAGG_OPT_USE_FLOWID, setlaggsetopt),
DEF_CMD("-use_flowid", -LAGG_OPT_USE_FLOWID, setlaggsetopt),
DEF_CMD("use_numa", LAGG_OPT_USE_NUMA, setlaggsetopt),
DEF_CMD("-use_numa", -LAGG_OPT_USE_NUMA, setlaggsetopt),
DEF_CMD("lacp_strict", LAGG_OPT_LACP_STRICT, setlaggsetopt),
DEF_CMD("-lacp_strict", -LAGG_OPT_LACP_STRICT, setlaggsetopt),
DEF_CMD("lacp_txtest", LAGG_OPT_LACP_TXTEST, setlaggsetopt),
DEF_CMD("-lacp_txtest", -LAGG_OPT_LACP_TXTEST, setlaggsetopt),
DEF_CMD("lacp_rxtest", LAGG_OPT_LACP_RXTEST, setlaggsetopt),
DEF_CMD("-lacp_rxtest", -LAGG_OPT_LACP_RXTEST, setlaggsetopt),
DEF_CMD("lacp_fast_timeout", LAGG_OPT_LACP_TIMEOUT, setlaggsetopt),
DEF_CMD("-lacp_fast_timeout", -LAGG_OPT_LACP_TIMEOUT, setlaggsetopt),
DEF_CMD_ARG("flowid_shift", setlaggflowidshift),
DEF_CMD_ARG("rr_limit", setlaggrr_limit),
};
static struct afswtch af_lagg = {
.af_name = "af_lagg",
.af_af = AF_UNSPEC,
.af_other_status = lagg_status,
};
static __constructor void
lagg_ctor(void)
{
int i;
for (i = 0; i < nitems(lagg_cmds); i++)
cmd_register(&lagg_cmds[i]);
af_register(&af_lagg);
}