X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fdpif.c;h=6eaa5e0c84cb813f141d1ce355a65d9fcac7f9e5;hb=39a501148a3d02974e32cb1a76ef3d6ba3c38419;hp=8bca124a86b1019997a53be4597a766303520465;hpb=72b0630028e94a24d92a7c14cd7bce96a252a3f5;p=openvswitch

diff --git a/lib/dpif.c b/lib/dpif.c
index 8bca124a..6eaa5e0c 100644
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -298,7 +298,6 @@ dpif_set_drop_frags(struct dpif *dpif, bool drop_frags)
     return error;
 }
 
-
 /* Attempts to add 'devname' as a port on 'dpif', given the combination of
  * ODP_PORT_* flags in 'flags'.  If successful, returns 0 and sets '*port_nop'
  * to the new port's port number (if 'port_nop' is non-null).  On failure,
@@ -845,9 +844,9 @@ dpif_recv_set_mask(struct dpif *dpif, int listen_mask)
     return error;
 }
 
-/* Retrieve the sFlow sampling probability.  A probability of 0 means sample no
- * packets, UINT32_MAX means sample every packet, and other values are
- * intermediate probabilities.
+/* Retrieve the sFlow sampling probability.  '*probability' is expressed as the
+ * number of packets out of UINT_MAX to sample, e.g. probability/UINT_MAX is
+ * the probability of sampling a given packet.
  *
  * Returns 0 if successful, otherwise a positive errno value.  EOPNOTSUPP
  * indicates that 'dpif' does not support sFlow sampling. */
@@ -864,9 +863,9 @@ dpif_get_sflow_probability(const struct dpif *dpif, uint32_t *probability)
     return error;
 }
 
-/* Set the sFlow sampling probability.  A probability of 0 means sample no
- * packets, UINT32_MAX means sample every packet, and other values are
- * intermediate probabilities.
+/* Set the sFlow sampling probability.  'probability' is expressed as the
+ * number of packets out of UINT_MAX to sample, e.g. probability/UINT_MAX is
+ * the probability of sampling a given packet.
  *
  * Returns 0 if successful, otherwise a positive errno value.  EOPNOTSUPP
  * indicates that 'dpif' does not support sFlow sampling. */