Describe dummy test model. Work on OpenFlow intro.

[openvswitch] / lib / lacp.c

diff --git a/lib/lacp.c b/lib/lacp.c
index 9eac4fe9f47ef5beba4766ec6b9e2960ed62cf17..374d915a94549e27c6b513d3b7d4b1da30d26ef1 100644 (file)
--- a/lib/lacp.c
+++ b/lib/lacp.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2011 Nicira Networks
+/* Copyright (c) 2011 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -98,11 +98,9 @@ struct lacp {
     struct hmap slaves;      /* Slaves this LACP object controls. */
     struct slave *key_slave; /* Slave whose ID will be the aggregation key. */
 
-    enum lacp_time lacp_time;  /* Fast, Slow or Custom LACP time. */
-    long long int custom_time; /* LACP_TIME_CUSTOM transmission rate. */
+    bool fast;               /* True if using fast probe interval. */
     bool negotiated;         /* True if LACP negotiations were successful. */
     bool update;             /* True if lacp_update() needs to be called. */
-    bool heartbeat;          /* LACP heartbeat mode. */
 };
 
 struct slave {
@@ -233,19 +231,14 @@ lacp_configure(struct lacp *lacp, const struct lacp_settings *s)
     }
 
     if (!eth_addr_equals(lacp->sys_id, s->id)
-        || lacp->sys_priority != s->priority
-        || lacp->heartbeat != s->heartbeat) {
+        || lacp->sys_priority != s->priority) {
         memcpy(lacp->sys_id, s->id, ETH_ADDR_LEN);
         lacp->sys_priority = s->priority;
-        lacp->heartbeat = s->heartbeat;
         lacp->update = true;
     }
 
     lacp->active = s->active;
-    lacp->lacp_time = s->lacp_time;
-    lacp->custom_time = (s->lacp_time == LACP_TIME_CUSTOM
-                         ? MAX(TIME_UPDATE_INTERVAL, s->custom_time)
-                         : 0);
+    lacp->fast = s->fast;
 }
 
 /* Returns true if 'lacp' is configured in active mode, false if 'lacp' is
@@ -274,20 +267,8 @@ lacp_process_packet(struct lacp *lacp, const void *slave_,
         return;
     }
 
-    switch (lacp->lacp_time) {
-    case LACP_TIME_FAST:
-        tx_rate = LACP_FAST_TIME_TX;
-        break;
-    case LACP_TIME_SLOW:
-        tx_rate = LACP_SLOW_TIME_TX;
-        break;
-    case LACP_TIME_CUSTOM:
-        tx_rate = lacp->custom_time;
-        break;
-    default: NOT_REACHED();
-    }
-
     slave->status = LACP_CURRENT;
+    tx_rate = lacp->fast ? LACP_FAST_TIME_TX : LACP_SLOW_TIME_TX;
     timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * tx_rate);
 
     slave->ntt_actor = pdu->partner;
@@ -381,6 +362,14 @@ lacp_slave_carrier_changed(const struct lacp *lacp, const void *slave_)
     }
 }
 
+static bool
+slave_may_enable__(struct slave *slave)
+{
+    /* The slave may be enabled if it's attached to an aggregator and its
+     * partner is synchronized.*/
+    return slave->attached && (slave->partner.state & LACP_STATE_SYNC);
+}
+
 /* This function should be called before enabling 'slave_' to send or receive
  * traffic.  If it returns false, 'slave_' should not enabled.  As a
  * convenience, returns true if 'lacp' is NULL. */
@@ -388,11 +377,7 @@ bool
 lacp_slave_may_enable(const struct lacp *lacp, const void *slave_)
 {
     if (lacp) {
-        struct slave *slave = slave_lookup(lacp, slave_);
-
-        /* The slave may be enabled if it's attached to an aggregator and its
-         * partner is synchronized.*/
-        return slave->attached && (slave->partner.state & LACP_STATE_SYNC);
+        return slave_may_enable__(slave_lookup(lacp, slave_));
     } else {
         return true;
     }
@@ -453,13 +438,9 @@ lacp_run(struct lacp *lacp, lacp_send_pdu *send_pdu)
             compose_lacp_pdu(&actor, &slave->partner, &pdu);
             send_pdu(slave->aux, &pdu, sizeof pdu);
 
-            if (lacp->lacp_time == LACP_TIME_CUSTOM) {
-                duration = lacp->custom_time;
-            } else {
-                duration = (slave->partner.state & LACP_STATE_TIME
-                            ? LACP_FAST_TIME_TX
-                            : LACP_SLOW_TIME_TX);
-            }
+            duration = (slave->partner.state & LACP_STATE_TIME
+                        ? LACP_FAST_TIME_TX
+                        : LACP_SLOW_TIME_TX);
 
             timer_set_duration(&slave->tx, duration);
         }
@@ -494,13 +475,6 @@ lacp_update_attached(struct lacp *lacp)
     struct lacp_info lead_pri;
     static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
 
-    if (lacp->heartbeat) {
-        HMAP_FOR_EACH (slave, node, &lacp->slaves) {
-            slave->attached = slave->status != LACP_DEFAULTED;
-        }
-        return;
-    }
-
     lacp->update = false;
 
     lead = NULL;
@@ -579,18 +553,11 @@ slave_set_defaulted(struct slave *slave)
 static void
 slave_set_expired(struct slave *slave)
 {
-    struct lacp *lacp = slave->lacp;
-
     slave->status = LACP_EXPIRED;
     slave->partner.state |= LACP_STATE_TIME;
     slave->partner.state &= ~LACP_STATE_SYNC;
 
-    /* The spec says we should wait LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX.
-     * This doesn't make sense when using custom times which can be much
-     * smaller than LACP_FAST_TIME. */
-    timer_set_duration(&slave->rx, (lacp->lacp_time == LACP_TIME_CUSTOM
-                                    ? lacp->custom_time
-                                    : LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX));
+    timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX);
 }
 
 static void
@@ -604,7 +571,7 @@ slave_get_actor(struct slave *slave, struct lacp_info *actor)
         state |= LACP_STATE_ACT;
     }
 
-    if (lacp->lacp_time != LACP_TIME_SLOW) {
+    if (lacp->fast) {
         state |= LACP_STATE_TIME;
     }
 
@@ -620,7 +587,7 @@ slave_get_actor(struct slave *slave, struct lacp_info *actor)
         state |= LACP_STATE_EXP;
     }
 
-    if (lacp->heartbeat || hmap_count(&lacp->slaves) > 1) {
+    if (hmap_count(&lacp->slaves) > 1) {
         state |= LACP_STATE_AGG;
     }
 
@@ -774,9 +741,6 @@ lacp_print_details(struct ds *ds, struct lacp *lacp)
 
     ds_put_format(ds, "---- %s ----\n", lacp->name);
     ds_put_format(ds, "\tstatus: %s", lacp->active ? "active" : "passive");
-    if (lacp->heartbeat) {
-        ds_put_cstr(ds, " heartbeat");
-    }
     if (lacp->negotiated) {
         ds_put_cstr(ds, " negotiated");
     }
@@ -793,18 +757,10 @@ lacp_print_details(struct ds *ds, struct lacp *lacp)
     ds_put_cstr(ds, "\n");
 
     ds_put_cstr(ds, "\tlacp_time: ");
-    switch (lacp->lacp_time) {
-    case LACP_TIME_FAST:
+    if (lacp->fast) {
         ds_put_cstr(ds, "fast\n");
-        break;
-    case LACP_TIME_SLOW:
+    } else {
         ds_put_cstr(ds, "slow\n");
-        break;
-    case LACP_TIME_CUSTOM:
-        ds_put_format(ds, "custom (%lld)\n", lacp->custom_time);
-        break;
-    default:
-        ds_put_cstr(ds, "unknown\n");
     }
 
     HMAP_FOR_EACH (slave, node, &lacp->slaves) {
@@ -836,6 +792,8 @@ lacp_print_details(struct ds *ds, struct lacp *lacp)
                       slave->attached ? "attached" : "detached");
         ds_put_format(ds, "\tport_id: %u\n", slave->port_id);
         ds_put_format(ds, "\tport_priority: %u\n", slave->port_priority);
+        ds_put_format(ds, "\tmay_enable: %s\n", (slave_may_enable__(slave)
+                                                 ? "true" : "false"));
 
         ds_put_format(ds, "\n\tactor sys_id: " ETH_ADDR_FMT "\n",
                       ETH_ADDR_ARGS(actor.sys_id));