vswitchd: Bubble no-flood configuration up to bridge

[openvswitch] / lib / netdev-linux.c

diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c
index abfbe6ef8967ba1959a47d92d43d69cb19ea387d..06f739cdc0f9ca39a0229776e7ad93ddb309aa58 100644 (file)
--- a/lib/netdev-linux.c
+++ b/lib/netdev-linux.c
@@ -2415,13 +2415,13 @@ htb_parse_class_details__(struct netdev *netdev,
     const char *priority_s = shash_find_data(details, "priority");
     int mtu;
 
-    /* min-rate */
+    /* min-rate.  Don't allow a min-rate below 1500 bytes/s. */
     if (!min_rate_s) {
         /* min-rate is required. */
         return EINVAL;
     }
     hc->min_rate = strtoull(min_rate_s, NULL, 10) / 8;
-    hc->min_rate = MAX(hc->min_rate, 0);
+    hc->min_rate = MAX(hc->min_rate, 1500);
     hc->min_rate = MIN(hc->min_rate, htb->max_rate);
 
     /* max-rate */
@@ -2938,7 +2938,7 @@ tc_bytes_to_ticks(unsigned int rate, unsigned int size)
     if (!buffer_hz) {
         read_psched();
     }
-    return ((unsigned long long int) ticks_per_s * size) / rate;
+    return rate ? ((unsigned long long int) ticks_per_s * size) / rate : 0;
 }
 
 /* Returns the number of bytes that need to be reserved for qdisc buffering at
@@ -3284,9 +3284,7 @@ tc_put_rtab(struct ofpbuf *msg, uint16_t type, const struct tc_ratespec *rate)
 /* Calculates the proper value of 'buffer' or 'cbuffer' in HTB options given a
  * rate of 'Bps' bytes per second, the specified 'mtu', and a user-requested
  * burst size of 'burst_bytes'.  (If no value was requested, a 'burst_bytes' of
- * 0 is fine.)
- *
- * This */
+ * 0 is fine.) */
 static int
 tc_calc_buffer(unsigned int Bps, int mtu, uint64_t burst_bytes)
 {