/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
+#include <math.h>
#include "coverage.h"
#include "dynamic-string.h"
#include "flow.h"
#include "hmap.h"
+#include "lacp.h"
#include "list.h"
#include "netdev.h"
#include "odp-util.h"
#include "ofpbuf.h"
#include "packets.h"
#include "poll-loop.h"
+#include "shash.h"
#include "tag.h"
#include "timeval.h"
#include "unixctl.h"
struct bond_entry {
struct bond_slave *slave; /* Assigned slave, NULL if unassigned. */
uint64_t tx_bytes; /* Count of bytes recently transmitted. */
- tag_type tag; /* Tag for entry<->slave association. */
+ tag_type tag; /* Tag for entry<->facet association. */
struct list list_node; /* In bond_slave's 'entries' list. */
};
void *aux; /* Client-provided handle for this slave. */
struct netdev *netdev; /* Network device, owned by the client. */
+ unsigned int change_seq; /* Tracks changes in 'netdev'. */
char *name; /* Name (a copy of netdev_get_name(netdev)). */
/* Link status. */
struct bond_slave *active_slave;
tag_type no_slaves_tag; /* Tag for flows when all slaves disabled. */
int updelay, downdelay; /* Delay before slave goes up/down, in ms. */
- bool lacp_negotiated; /* LACP negotiations were successful. */
+ enum lacp_status lacp_status; /* Status of LACP negotiations. */
bool bond_revalidate; /* True if flows need revalidation. */
uint32_t basis; /* Basis for flow hash function. */
/* BM_STABLE specific bonding info. */
tag_type stb_tag; /* Tag associated with this bond. */
- /* Monitoring. */
- struct netdev_monitor *monitor; /* detect == BLSM_CARRIER only. */
-
/* Legacy compatibility. */
long long int next_fake_iface_update; /* LLONG_MAX if disabled. */
struct tag_set *);
static void bond_link_status_update(struct bond_slave *, struct tag_set *);
static void bond_choose_active_slave(struct bond *, struct tag_set *);
-static bool bond_is_tcp_hash(const struct bond *);
static unsigned int bond_hash_src(const uint8_t mac[ETH_ADDR_LEN],
uint16_t vlan, uint32_t basis);
static unsigned int bond_hash_tcp(const struct flow *, uint16_t vlan,
static tag_type bond_get_active_slave_tag(const struct bond *);
static struct bond_slave *choose_output_slave(const struct bond *,
const struct flow *,
- uint16_t vlan);
+ uint16_t vlan, tag_type *tags);
static void bond_update_fake_slave_stats(struct bond *);
/* Attempts to parse 's' as the name of a bond balancing mode. If successful,
bond->no_slaves_tag = tag_create_random();
bond->stb_tag = tag_create_random();
bond->next_fake_iface_update = LLONG_MAX;
- bond->monitor = netdev_monitor_create();
bond_reconfigure(bond, s);
hmap_destroy(&bond->slaves);
free(bond->hash);
-
- netdev_monitor_destroy(bond->monitor);
-
free(bond->name);
free(bond);
}
bond->updelay = s->up_delay;
bond->downdelay = s->down_delay;
- bond->rebalance_interval = s->rebalance_interval;
+
+ if (bond->rebalance_interval != s->rebalance_interval) {
+ bond->rebalance_interval = s->rebalance_interval;
+ revalidate = true;
+ }
if (bond->balance != s->balance) {
bond->balance = s->balance;
revalidate = true;
+
+ if (bond->balance == BM_STABLE) {
+ VLOG_WARN_ONCE("Stable bond mode is deprecated and may be removed"
+ " in February 2013. Please email"
+ " dev@openvswitch.org with concerns.");
+ }
}
if (bond->basis != s->basis) {
}
static void
-bond_slave_set_netdev__(struct bond *bond, struct bond_slave *slave,
- struct netdev *netdev)
+bond_slave_set_netdev__(struct bond_slave *slave, struct netdev *netdev)
{
if (slave->netdev != netdev) {
- if (slave->netdev) {
- netdev_monitor_remove(bond->monitor, slave->netdev);
- }
- netdev_monitor_add(bond->monitor, netdev);
slave->netdev = netdev;
+ slave->change_seq = 0;
}
}
bond->bond_revalidate = true;
}
- bond_slave_set_netdev__(bond, slave, netdev);
+ bond_slave_set_netdev__(slave, netdev);
free(slave->name);
slave->name = xstrdup(netdev_get_name(netdev));
{
struct bond_slave *slave = bond_slave_lookup(bond, slave_);
if (slave) {
- bond_slave_set_netdev__(bond, slave, netdev);
+ bond_slave_set_netdev__(slave, netdev);
}
}
return;
}
- netdev_monitor_remove(bond->monitor, slave->netdev);
bond_enable_slave(slave, false, NULL);
del_active = bond->active_slave == slave;
*
* The caller should check bond_should_send_learning_packets() afterward. */
void
-bond_run(struct bond *bond, struct tag_set *tags, bool lacp_negotiated)
+bond_run(struct bond *bond, struct tag_set *tags, enum lacp_status lacp_status)
{
struct bond_slave *slave;
- bool is_tcp_hash = bond_is_tcp_hash(bond);
- bond->lacp_negotiated = lacp_negotiated;
-
- if (bond->monitor) {
- netdev_monitor_flush(bond->monitor);
+ if (bond->lacp_status != lacp_status) {
+ bond->lacp_status = lacp_status;
+ bond->bond_revalidate = true;
}
/* Enable slaves based on link status and LACP feedback. */
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
bond_link_status_update(slave, tags);
+ slave->change_seq = netdev_change_seq(slave->netdev);
}
if (!bond->active_slave || !bond->active_slave->enabled) {
bond_choose_active_slave(bond, tags);
bond->next_fake_iface_update = time_msec() + 1000;
}
- if (is_tcp_hash != bond_is_tcp_hash(bond)) {
- bond->bond_revalidate = true;
- }
-
if (bond->bond_revalidate) {
bond->bond_revalidate = false;
{
struct bond_slave *slave;
- netdev_monitor_poll_wait(bond->monitor);
-
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
if (slave->delay_expires != LLONG_MAX) {
poll_timer_wait_until(slave->delay_expires);
}
+
+ if (slave->change_seq != netdev_change_seq(slave->netdev)) {
+ poll_immediate_wake();
+ }
}
if (bond->next_fake_iface_update != LLONG_MAX) {
static bool
may_send_learning_packets(const struct bond *bond)
{
- return !bond->lacp_negotiated && bond->balance != BM_AB;
+ return bond->lacp_status == LACP_DISABLED
+ && (bond->balance == BM_SLB || bond->balance == BM_AB)
+ && bond->active_slave;
}
/* Returns true if 'bond' needs the client to send out packets to assist with
* MAC learning on 'bond'. If this function returns true, then the client
* should iterate through its MAC learning table for the bridge on which 'bond'
* is located. For each MAC that has been learned on a port other than 'bond',
- * it should call bond_send_learning_packet().
+ * it should call bond_compose_learning_packet().
*
- * This function will only return true if 'bond' is in SLB mode and LACP is not
- * negotiated. Otherwise sending learning packets isn't necessary.
+ * This function will only return true if 'bond' is in SLB or active-backup
+ * mode and LACP is not negotiated. Otherwise sending learning packets isn't
+ * necessary.
*
* Calling this function resets the state that it checks. */
bool
/* Sends a gratuitous learning packet on 'bond' from 'eth_src' on 'vlan'.
*
- * See bond_should_send_learning_packets() for description of usage. */
-int
-bond_send_learning_packet(struct bond *bond,
- const uint8_t eth_src[ETH_ADDR_LEN],
- uint16_t vlan)
+ * See bond_should_send_learning_packets() for description of usage. The
+ * caller should send the composed packet on the port associated with
+ * port_aux and takes ownership of the returned ofpbuf. */
+struct ofpbuf *
+bond_compose_learning_packet(struct bond *bond,
+ const uint8_t eth_src[ETH_ADDR_LEN],
+ uint16_t vlan, void **port_aux)
{
struct bond_slave *slave;
- struct ofpbuf packet;
+ struct ofpbuf *packet;
+ tag_type tags = 0;
struct flow flow;
- int error;
assert(may_send_learning_packets(bond));
- if (!bond->active_slave) {
- /* Nowhere to send the learning packet. */
- return 0;
- }
memset(&flow, 0, sizeof flow);
memcpy(flow.dl_src, eth_src, ETH_ADDR_LEN);
- slave = choose_output_slave(bond, &flow, vlan);
+ slave = choose_output_slave(bond, &flow, vlan, &tags);
- ofpbuf_init(&packet, 0);
- compose_benign_packet(&packet, "Open vSwitch Bond Failover", 0xf177,
- eth_src);
+ packet = ofpbuf_new(0);
+ compose_rarp(packet, eth_src);
if (vlan) {
- eth_set_vlan_tci(&packet, htons(vlan));
+ eth_push_vlan(packet, htons(vlan));
}
- error = netdev_send(slave->netdev, &packet);
- ofpbuf_uninit(&packet);
- return error;
+ *port_aux = slave->aux;
+ return packet;
}
\f
/* Checks whether a packet that arrived on 'slave_' within 'bond', with an
bond_check_admissibility(struct bond *bond, const void *slave_,
const uint8_t eth_dst[ETH_ADDR_LEN], tag_type *tags)
{
- /* Admit all packets if LACP has been negotiated, because that means that
- * the remote switch is aware of the bond and will "do the right thing". */
- if (bond->lacp_negotiated) {
- return BV_ACCEPT;
+ struct bond_slave *slave = bond_slave_lookup(bond, slave_);
+
+ /* LACP bonds have very loose admissibility restrictions because we can
+ * assume the remote switch is aware of the bond and will "do the right
+ * thing". However, as a precaution we drop packets on disabled slaves
+ * because no correctly implemented partner switch should be sending
+ * packets to them.
+ *
+ * If LACP is configured, but LACP negotiations have been unsuccessful, we
+ * drop all incoming traffic. */
+ switch (bond->lacp_status) {
+ case LACP_NEGOTIATED: return slave->enabled ? BV_ACCEPT : BV_DROP;
+ case LACP_CONFIGURED: return BV_DROP;
+ case LACP_DISABLED: break;
}
/* Drop all multicast packets on inactive slaves. */
}
}
- /* Drop all packets for which we have learned a different input port,
- * because we probably sent the packet on one slave and got it back on the
- * other. Gratuitous ARP packets are an exception to this rule: the host
- * has moved to another switch. The exception to the exception is if we
- * locked the learning table to avoid reflections on bond slaves. */
- return BV_DROP_IF_MOVED;
+ switch (bond->balance) {
+ case BM_AB:
+ /* Drop all packets which arrive on backup slaves. This is similar to
+ * how Linux bonding handles active-backup bonds. */
+ *tags |= bond_get_active_slave_tag(bond);
+ if (bond->active_slave != slave) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+
+ VLOG_DBG_RL(&rl, "active-backup bond received packet on backup"
+ " slave (%s) destined for " ETH_ADDR_FMT,
+ slave->name, ETH_ADDR_ARGS(eth_dst));
+ return BV_DROP;
+ }
+ return BV_ACCEPT;
+
+ case BM_TCP:
+ /* TCP balanced bonds require successful LACP negotiated. Based on the
+ * above check, LACP is off on this bond. Therfore, we drop all
+ * incoming traffic. */
+ return BV_DROP;
+
+ case BM_SLB:
+ /* Drop all packets for which we have learned a different input port,
+ * because we probably sent the packet on one slave and got it back on
+ * the other. Gratuitous ARP packets are an exception to this rule:
+ * the host has moved to another switch. The exception to the
+ * exception is if we locked the learning table to avoid reflections on
+ * bond slaves. */
+ return BV_DROP_IF_MOVED;
+
+ case BM_STABLE:
+ return BV_ACCEPT;
+ }
+
+ NOT_REACHED();
}
/* Returns the slave (registered on 'bond' by bond_slave_register()) to which
bond_choose_output_slave(struct bond *bond, const struct flow *flow,
uint16_t vlan, tag_type *tags)
{
- struct bond_slave *slave = choose_output_slave(bond, flow, vlan);
+ struct bond_slave *slave = choose_output_slave(bond, flow, vlan, tags);
if (slave) {
*tags |= bond->balance == BM_STABLE ? bond->stb_tag : slave->tag;
return slave->aux;
static bool
bond_is_balanced(const struct bond *bond)
{
- return bond->balance == BM_SLB || bond->balance == BM_TCP;
+ return bond->rebalance_interval
+ && (bond->balance == BM_SLB || bond->balance == BM_TCP);
}
/* Notifies 'bond' that 'n_bytes' bytes were sent in 'flow' within 'vlan'. */
bond_account(struct bond *bond, const struct flow *flow, uint16_t vlan,
uint64_t n_bytes)
{
-
if (bond_is_balanced(bond)) {
lookup_bond_entry(bond, flow, vlan)->tx_bytes += n_bytes;
}
hash->tag = tag_create_random();
}
-/* Pick and returns a bond_entry to migrate to 'to' (the least-loaded slave),
+/* Picks and returns a bond_entry to migrate from 'from' (the most heavily
+ * loaded bond slave) to a bond slave that has 'to_tx_bytes' bytes of load,
* given that doing so must decrease the ratio of the load on the two slaves by
* at least 0.1. Returns NULL if there is no appropriate entry.
*
delta = e->tx_bytes;
old_ratio = (double)from->tx_bytes / to_tx_bytes;
new_ratio = (double)(from->tx_bytes - delta) / (to_tx_bytes + delta);
- if (old_ratio - new_ratio > 0.1) {
- /* Would decrease the ratio, move it. */
+ if (old_ratio - new_ratio > 0.1
+ && fabs(new_ratio - 1.0) < fabs(old_ratio - 1.0)) {
+ /* We're aiming for an ideal ratio of 1, meaning both the 'from'
+ and 'to' slave have the same load. Therefore, we only move an
+ entry if it decreases the load on 'from', and brings us closer
+ to equal traffic load. */
return e;
}
}
break;
}
- /* 'from' is carrying significantly more load than 'to', and that load
- * is split across at least two different hashes. */
+ /* 'from' is carrying significantly more load than 'to'. Pick a hash
+ * to move from 'from' to 'to'. */
e = choose_entry_to_migrate(from, to->tx_bytes);
if (e) {
bond_shift_load(e, to, tags);
static void
bond_unixctl_list(struct unixctl_conn *conn,
- const char *args OVS_UNUSED, void *aux OVS_UNUSED)
+ int argc OVS_UNUSED, const char *argv[] OVS_UNUSED,
+ void *aux OVS_UNUSED)
{
struct ds ds = DS_EMPTY_INITIALIZER;
const struct bond *bond;
}
ds_put_char(&ds, '\n');
}
- unixctl_command_reply(conn, 200, ds_cstr(&ds));
+ unixctl_command_reply(conn, ds_cstr(&ds));
ds_destroy(&ds);
}
static void
-bond_unixctl_show(struct unixctl_conn *conn,
- const char *args, void *aux OVS_UNUSED)
+bond_print_details(struct ds *ds, const struct bond *bond)
{
- struct ds ds = DS_EMPTY_INITIALIZER;
+ struct shash slave_shash = SHASH_INITIALIZER(&slave_shash);
+ const struct shash_node **sorted_slaves = NULL;
const struct bond_slave *slave;
- const struct bond *bond;
-
- bond = bond_find(args);
- if (!bond) {
- unixctl_command_reply(conn, 501, "no such bond");
- return;
- }
+ int i;
- ds_put_format(&ds, "bond_mode: %s\n",
+ ds_put_format(ds, "---- %s ----\n", bond->name);
+ ds_put_format(ds, "bond_mode: %s\n",
bond_mode_to_string(bond->balance));
- if (bond->balance != BM_AB) {
- ds_put_format(&ds, "bond-hash-algorithm: %s\n",
- bond_is_tcp_hash(bond) ? "balance-tcp" : "balance-slb");
- }
-
- ds_put_format(&ds, "bond-hash-basis: %"PRIu32"\n", bond->basis);
+ ds_put_format(ds, "bond-hash-basis: %"PRIu32"\n", bond->basis);
- ds_put_format(&ds, "updelay: %d ms\n", bond->updelay);
- ds_put_format(&ds, "downdelay: %d ms\n", bond->downdelay);
+ ds_put_format(ds, "updelay: %d ms\n", bond->updelay);
+ ds_put_format(ds, "downdelay: %d ms\n", bond->downdelay);
if (bond_is_balanced(bond)) {
- ds_put_format(&ds, "next rebalance: %lld ms\n",
+ ds_put_format(ds, "next rebalance: %lld ms\n",
bond->next_rebalance - time_msec());
}
- ds_put_format(&ds, "lacp_negotiated: %s\n",
- bond->lacp_negotiated ? "true" : "false");
+ ds_put_cstr(ds, "lacp_status: ");
+ switch (bond->lacp_status) {
+ case LACP_NEGOTIATED:
+ ds_put_cstr(ds, "negotiated\n");
+ break;
+ case LACP_CONFIGURED:
+ ds_put_cstr(ds, "configured\n");
+ break;
+ case LACP_DISABLED:
+ ds_put_cstr(ds, "off\n");
+ break;
+ default:
+ ds_put_cstr(ds, "<unknown>\n");
+ break;
+ }
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
+ shash_add(&slave_shash, slave->name, slave);
+ }
+ sorted_slaves = shash_sort(&slave_shash);
+
+ for (i = 0; i < shash_count(&slave_shash); i++) {
struct bond_entry *be;
+ slave = sorted_slaves[i]->data;
+
/* Basic info. */
- ds_put_format(&ds, "\nslave %s: %s\n",
+ ds_put_format(ds, "\nslave %s: %s\n",
slave->name, slave->enabled ? "enabled" : "disabled");
if (slave == bond->active_slave) {
- ds_put_cstr(&ds, "\tactive slave\n");
+ ds_put_cstr(ds, "\tactive slave\n");
}
if (slave->delay_expires != LLONG_MAX) {
- ds_put_format(&ds, "\t%s expires in %lld ms\n",
+ ds_put_format(ds, "\t%s expires in %lld ms\n",
slave->enabled ? "downdelay" : "updelay",
slave->delay_expires - time_msec());
}
- ds_put_format(&ds, "\tmay_enable: %s\n",
+ ds_put_format(ds, "\tmay_enable: %s\n",
slave->may_enable ? "true" : "false");
if (!bond_is_balanced(bond)) {
continue;
}
- ds_put_format(&ds, "\thash %d: %"PRIu64" kB load\n",
+ ds_put_format(ds, "\thash %d: %"PRIu64" kB load\n",
hash, be->tx_bytes / 1024);
- if (bond->balance != BM_SLB) {
- continue;
- }
+ /* XXX How can we list the MACs assigned to hashes of SLB bonds? */
+ }
+ }
+ shash_destroy(&slave_shash);
+ free(sorted_slaves);
+ ds_put_cstr(ds, "\n");
+}
- /* XXX How can we list the MACs assigned to hashes? */
+static void
+bond_unixctl_show(struct unixctl_conn *conn,
+ int argc, const char *argv[],
+ void *aux OVS_UNUSED)
+{
+ struct ds ds = DS_EMPTY_INITIALIZER;
+
+ if (argc > 1) {
+ const struct bond *bond = bond_find(argv[1]);
+
+ if (!bond) {
+ unixctl_command_reply_error(conn, "no such bond");
+ return;
+ }
+ bond_print_details(&ds, bond);
+ } else {
+ const struct bond *bond;
+
+ HMAP_FOR_EACH (bond, hmap_node, &all_bonds) {
+ bond_print_details(&ds, bond);
}
}
- unixctl_command_reply(conn, 200, ds_cstr(&ds));
+
+ unixctl_command_reply(conn, ds_cstr(&ds));
ds_destroy(&ds);
}
static void
-bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_,
+bond_unixctl_migrate(struct unixctl_conn *conn,
+ int argc OVS_UNUSED, const char *argv[],
void *aux OVS_UNUSED)
{
- char *args = (char *) args_;
- char *save_ptr = NULL;
- char *bond_s, *hash_s, *slave_s;
+ const char *bond_s = argv[1];
+ const char *hash_s = argv[2];
+ const char *slave_s = argv[3];
struct bond *bond;
struct bond_slave *slave;
struct bond_entry *entry;
int hash;
- bond_s = strtok_r(args, " ", &save_ptr);
- hash_s = strtok_r(NULL, " ", &save_ptr);
- slave_s = strtok_r(NULL, " ", &save_ptr);
- if (!slave_s) {
- unixctl_command_reply(conn, 501,
- "usage: bond/migrate BOND HASH SLAVE");
- return;
- }
-
bond = bond_find(bond_s);
if (!bond) {
- unixctl_command_reply(conn, 501, "no such bond");
+ unixctl_command_reply_error(conn, "no such bond");
return;
}
if (bond->balance != BM_SLB) {
- unixctl_command_reply(conn, 501, "not an SLB bond");
+ unixctl_command_reply_error(conn, "not an SLB bond");
return;
}
if (strspn(hash_s, "0123456789") == strlen(hash_s)) {
hash = atoi(hash_s) & BOND_MASK;
} else {
- unixctl_command_reply(conn, 501, "bad hash");
+ unixctl_command_reply_error(conn, "bad hash");
return;
}
slave = bond_lookup_slave(bond, slave_s);
if (!slave) {
- unixctl_command_reply(conn, 501, "no such slave");
+ unixctl_command_reply_error(conn, "no such slave");
return;
}
if (!slave->enabled) {
- unixctl_command_reply(conn, 501, "cannot migrate to disabled slave");
+ unixctl_command_reply_error(conn, "cannot migrate to disabled slave");
return;
}
tag_set_add(&bond->unixctl_tags, entry->tag);
entry->slave = slave;
entry->tag = tag_create_random();
- unixctl_command_reply(conn, 200, "migrated");
+ unixctl_command_reply(conn, "migrated");
}
static void
-bond_unixctl_set_active_slave(struct unixctl_conn *conn, const char *args_,
+bond_unixctl_set_active_slave(struct unixctl_conn *conn,
+ int argc OVS_UNUSED, const char *argv[],
void *aux OVS_UNUSED)
{
- char *args = (char *) args_;
- char *save_ptr = NULL;
- char *bond_s, *slave_s;
+ const char *bond_s = argv[1];
+ const char *slave_s = argv[2];
struct bond *bond;
struct bond_slave *slave;
- bond_s = strtok_r(args, " ", &save_ptr);
- slave_s = strtok_r(NULL, " ", &save_ptr);
- if (!slave_s) {
- unixctl_command_reply(conn, 501,
- "usage: bond/set-active-slave BOND SLAVE");
- return;
- }
-
bond = bond_find(bond_s);
if (!bond) {
- unixctl_command_reply(conn, 501, "no such bond");
+ unixctl_command_reply_error(conn, "no such bond");
return;
}
slave = bond_lookup_slave(bond, slave_s);
if (!slave) {
- unixctl_command_reply(conn, 501, "no such slave");
+ unixctl_command_reply_error(conn, "no such slave");
return;
}
if (!slave->enabled) {
- unixctl_command_reply(conn, 501, "cannot make disabled slave active");
+ unixctl_command_reply_error(conn, "cannot make disabled slave active");
return;
}
VLOG_INFO("bond %s: active interface is now %s",
bond->name, slave->name);
bond->send_learning_packets = true;
- unixctl_command_reply(conn, 200, "done");
+ unixctl_command_reply(conn, "done");
} else {
- unixctl_command_reply(conn, 200, "no change");
+ unixctl_command_reply(conn, "no change");
}
}
static void
-enable_slave(struct unixctl_conn *conn, const char *args_, bool enable)
+enable_slave(struct unixctl_conn *conn, const char *argv[], bool enable)
{
- char *args = (char *) args_;
- char *save_ptr = NULL;
- char *bond_s, *slave_s;
+ const char *bond_s = argv[1];
+ const char *slave_s = argv[2];
struct bond *bond;
struct bond_slave *slave;
- bond_s = strtok_r(args, " ", &save_ptr);
- slave_s = strtok_r(NULL, " ", &save_ptr);
- if (!slave_s) {
- char *usage = xasprintf("usage: bond/%s-slave BOND SLAVE",
- enable ? "enable" : "disable");
- unixctl_command_reply(conn, 501, usage);
- free(usage);
- return;
- }
-
bond = bond_find(bond_s);
if (!bond) {
- unixctl_command_reply(conn, 501, "no such bond");
+ unixctl_command_reply_error(conn, "no such bond");
return;
}
slave = bond_lookup_slave(bond, slave_s);
if (!slave) {
- unixctl_command_reply(conn, 501, "no such slave");
+ unixctl_command_reply_error(conn, "no such slave");
return;
}
bond_enable_slave(slave, enable, &bond->unixctl_tags);
- unixctl_command_reply(conn, 501, enable ? "enabled" : "disabled");
+ unixctl_command_reply(conn, enable ? "enabled" : "disabled");
}
static void
-bond_unixctl_enable_slave(struct unixctl_conn *conn, const char *args,
+bond_unixctl_enable_slave(struct unixctl_conn *conn,
+ int argc OVS_UNUSED, const char *argv[],
void *aux OVS_UNUSED)
{
- enable_slave(conn, args, true);
+ enable_slave(conn, argv, true);
}
static void
-bond_unixctl_disable_slave(struct unixctl_conn *conn, const char *args,
+bond_unixctl_disable_slave(struct unixctl_conn *conn,
+ int argc OVS_UNUSED, const char *argv[],
void *aux OVS_UNUSED)
{
- enable_slave(conn, args, false);
+ enable_slave(conn, argv, false);
}
static void
-bond_unixctl_hash(struct unixctl_conn *conn, const char *args_,
+bond_unixctl_hash(struct unixctl_conn *conn, int argc, const char *argv[],
void *aux OVS_UNUSED)
{
- char *args = (char *) args_;
+ const char *mac_s = argv[1];
+ const char *vlan_s = argc > 2 ? argv[2] : NULL;
+ const char *basis_s = argc > 3 ? argv[3] : NULL;
uint8_t mac[ETH_ADDR_LEN];
uint8_t hash;
char *hash_cstr;
unsigned int vlan;
uint32_t basis;
- char *mac_s, *vlan_s, *basis_s;
- char *save_ptr = NULL;
-
- mac_s = strtok_r(args, " ", &save_ptr);
- vlan_s = strtok_r(NULL, " ", &save_ptr);
- basis_s = strtok_r(NULL, " ", &save_ptr);
if (vlan_s) {
if (sscanf(vlan_s, "%u", &vlan) != 1) {
- unixctl_command_reply(conn, 501, "invalid vlan");
+ unixctl_command_reply_error(conn, "invalid vlan");
return;
}
} else {
- vlan = OFP_VLAN_NONE;
+ vlan = 0;
}
if (basis_s) {
if (sscanf(basis_s, "%"PRIu32, &basis) != 1) {
- unixctl_command_reply(conn, 501, "invalid basis");
+ unixctl_command_reply_error(conn, "invalid basis");
return;
}
} else {
hash = bond_hash_src(mac, vlan, basis) & BOND_MASK;
hash_cstr = xasprintf("%u", hash);
- unixctl_command_reply(conn, 200, hash_cstr);
+ unixctl_command_reply(conn, hash_cstr);
free(hash_cstr);
} else {
- unixctl_command_reply(conn, 501, "invalid mac");
+ unixctl_command_reply_error(conn, "invalid mac");
}
}
void
bond_init(void)
{
- unixctl_command_register("bond/list", bond_unixctl_list, NULL);
- unixctl_command_register("bond/show", bond_unixctl_show, NULL);
- unixctl_command_register("bond/migrate", bond_unixctl_migrate, NULL);
- unixctl_command_register("bond/set-active-slave",
- bond_unixctl_set_active_slave, NULL);
- unixctl_command_register("bond/enable-slave", bond_unixctl_enable_slave,
+ unixctl_command_register("bond/list", "", 0, 0, bond_unixctl_list, NULL);
+ unixctl_command_register("bond/show", "[port]", 0, 1, bond_unixctl_show,
NULL);
- unixctl_command_register("bond/disable-slave", bond_unixctl_disable_slave,
- NULL);
- unixctl_command_register("bond/hash", bond_unixctl_hash, NULL);
+ unixctl_command_register("bond/migrate", "port hash slave", 3, 3,
+ bond_unixctl_migrate, NULL);
+ unixctl_command_register("bond/set-active-slave", "port slave", 2, 2,
+ bond_unixctl_set_active_slave, NULL);
+ unixctl_command_register("bond/enable-slave", "port slave", 2, 2,
+ bond_unixctl_enable_slave, NULL);
+ unixctl_command_register("bond/disable-slave", "port slave", 2, 2,
+ bond_unixctl_disable_slave, NULL);
+ unixctl_command_register("bond/hash", "mac [vlan] [basis]", 1, 3,
+ bond_unixctl_hash, NULL);
}
\f
static void
VLOG_INFO_RL(&rl, "interface %s: will not be %s",
slave->name, up ? "disabled" : "enabled");
} else {
- int delay = (bond->lacp_negotiated ? 0
+ int delay = (bond->lacp_status != LACP_DISABLED ? 0
: up ? bond->updelay : bond->downdelay);
slave->delay_expires = time_msec() + delay;
if (delay) {
}
}
-static bool
-bond_is_tcp_hash(const struct bond *bond)
-{
- return (bond->balance == BM_TCP || bond->balance == BM_STABLE)
- && bond->lacp_negotiated;
-}
-
static unsigned int
bond_hash_src(const uint8_t mac[ETH_ADDR_LEN], uint16_t vlan, uint32_t basis)
{
static unsigned int
bond_hash(const struct bond *bond, const struct flow *flow, uint16_t vlan)
{
- assert(bond->balance != BM_AB);
+ assert(bond->balance == BM_TCP || bond->balance == BM_SLB);
- return (bond_is_tcp_hash(bond)
+ return (bond->balance == BM_TCP
? bond_hash_tcp(flow, vlan, bond->basis)
: bond_hash_src(flow->dl_src, vlan, bond->basis));
}
* more complex implementations and require the use of memory. This may need
* to be reimplemented if it becomes a performance bottleneck. */
static struct bond_slave *
-choose_stb_slave(const struct bond *bond, const struct flow *flow,
- uint16_t vlan)
+choose_stb_slave(const struct bond *bond, uint32_t flow_hash)
{
struct bond_slave *best, *slave;
- uint32_t best_hash, flow_hash;
+ uint32_t best_hash;
best = NULL;
best_hash = 0;
- flow_hash = bond_hash(bond, flow, vlan);
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
if (slave->enabled) {
uint32_t hash;
static struct bond_slave *
choose_output_slave(const struct bond *bond, const struct flow *flow,
- uint16_t vlan)
+ uint16_t vlan, tag_type *tags)
{
struct bond_entry *e;
+ if (bond->lacp_status == LACP_CONFIGURED) {
+ /* LACP has been configured on this bond but negotiations were
+ * unsuccussful. Drop all traffic. */
+ return NULL;
+ }
+
switch (bond->balance) {
case BM_AB:
return bond->active_slave;
case BM_STABLE:
- return choose_stb_slave(bond, flow, vlan);
- case BM_SLB:
+ return choose_stb_slave(bond, bond_hash_tcp(flow, vlan, bond->basis));
+
case BM_TCP:
+ if (bond->lacp_status != LACP_NEGOTIATED) {
+ /* Must have LACP negotiations for TCP balanced bonds. */
+ return NULL;
+ }
+ /* Fall Through. */
+ case BM_SLB:
+ if (!bond_is_balanced(bond)) {
+ return choose_stb_slave(bond, bond_hash(bond, flow, vlan));
+ }
e = lookup_bond_entry(bond, flow, vlan);
if (!e->slave || !e->slave->enabled) {
e->slave = CONTAINER_OF(hmap_random_node(&bond->slaves),
}
e->tag = tag_create_random();
}
+ *tags |= e->tag;
return e->slave;
default:
}
}
- if (!netdev_open_default(bond->name, &bond_dev)) {
+ if (!netdev_open(bond->name, "system", &bond_dev)) {
netdev_set_stats(bond_dev, &bond_stats);
netdev_close(bond_dev);
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff