/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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->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) {
may_send_learning_packets(const struct bond *bond)
{
return bond->lacp_status == LACP_DISABLED
- && bond->balance != BM_AB
+ && bond->balance != BM_STABLE
&& bond->active_slave;
}
* is located. For each MAC that has been learned on a port other than 'bond',
* 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
{
struct bond_slave *slave;
struct ofpbuf *packet;
+ tag_type tags = 0;
struct flow flow;
assert(may_send_learning_packets(bond));
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);
packet = ofpbuf_new(0);
- compose_benign_packet(packet, "Open vSwitch Bond Failover", 0xf177,
- eth_src);
+ compose_rarp(packet, eth_src);
if (vlan) {
eth_push_vlan(packet, htons(vlan));
}
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'. */
}
ds_put_char(&ds, '\n');
}
- unixctl_command_reply(conn, 200, ds_cstr(&ds));
+ unixctl_command_reply(conn, ds_cstr(&ds));
ds_destroy(&ds);
}
const struct bond *bond = bond_find(argv[1]);
if (!bond) {
- unixctl_command_reply(conn, 501, "no such bond");
+ unixctl_command_reply_error(conn, "no such bond");
return;
}
bond_print_details(&ds, bond);
}
}
- unixctl_command_reply(conn, 200, ds_cstr(&ds));
+ unixctl_command_reply(conn, ds_cstr(&ds));
ds_destroy(&ds);
}
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 = 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");
}
}
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
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 {
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");
}
}
* 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_tcp(flow, vlan, bond->basis);
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;
return bond->active_slave;
case BM_STABLE:
- return choose_stb_slave(bond, flow, vlan);
+ return choose_stb_slave(bond, bond_hash_tcp(flow, vlan, bond->basis));
case BM_TCP:
if (bond->lacp_status != LACP_NEGOTIATED) {
}
/* 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:
git://git.onelab.eu / sliver-openvswitch.git / blobdiff