Merge "sflow" into "master".

[sliver-openvswitch.git] / lib / dpif.c

diff --git a/lib/dpif.c b/lib/dpif.c
index 8bca124..7edaf31 100644 (file)
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -205,7 +205,7 @@ dpif_close(struct dpif *dpif)
 {
     if (dpif) {
         char *name = dpif->name;
-        dpif->class->close(dpif);
+        dpif->dpif_class->close(dpif);
         free(name);
     }
 }
@@ -229,8 +229,8 @@ dpif_name(const struct dpif *dpif)
 int
 dpif_get_all_names(const struct dpif *dpif, struct svec *all_names)
 {
-    if (dpif->class->get_all_names) {
-        int error = dpif->class->get_all_names(dpif, all_names);
+    if (dpif->dpif_class->get_all_names) {
+        int error = dpif->dpif_class->get_all_names(dpif, all_names);
         if (error) {
             VLOG_WARN_RL(&error_rl,
                          "failed to retrieve names for datpath %s: %s",
@@ -253,7 +253,7 @@ dpif_delete(struct dpif *dpif)
 
     COVERAGE_INC(dpif_destroy);
 
-    error = dpif->class->delete(dpif);
+    error = dpif->dpif_class->destroy(dpif);
     log_operation(dpif, "delete", error);
     return error;
 }
@@ -263,7 +263,7 @@ dpif_delete(struct dpif *dpif)
 int
 dpif_get_dp_stats(const struct dpif *dpif, struct odp_stats *stats)
 {
-    int error = dpif->class->get_stats(dpif, stats);
+    int error = dpif->dpif_class->get_stats(dpif, stats);
     if (error) {
         memset(stats, 0, sizeof *stats);
     }
@@ -279,7 +279,7 @@ dpif_get_dp_stats(const struct dpif *dpif, struct odp_stats *stats)
 int
 dpif_get_drop_frags(const struct dpif *dpif, bool *drop_frags)
 {
-    int error = dpif->class->get_drop_frags(dpif, drop_frags);
+    int error = dpif->dpif_class->get_drop_frags(dpif, drop_frags);
     if (error) {
         *drop_frags = false;
     }
@@ -293,12 +293,11 @@ dpif_get_drop_frags(const struct dpif *dpif, bool *drop_frags)
 int
 dpif_set_drop_frags(struct dpif *dpif, bool drop_frags)
 {
-    int error = dpif->class->set_drop_frags(dpif, drop_frags);
+    int error = dpif->dpif_class->set_drop_frags(dpif, drop_frags);
     log_operation(dpif, "set_drop_frags", error);
     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,
@@ -313,7 +312,7 @@ dpif_port_add(struct dpif *dpif, const char *devname, uint16_t flags,
 
     COVERAGE_INC(dpif_port_add);
 
-    error = dpif->class->port_add(dpif, devname, flags, &port_no);
+    error = dpif->dpif_class->port_add(dpif, devname, flags, &port_no);
     if (!error) {
         VLOG_DBG_RL(&dpmsg_rl, "%s: added %s as port %"PRIu16,
                     dpif_name(dpif), devname, port_no);
@@ -337,7 +336,7 @@ dpif_port_del(struct dpif *dpif, uint16_t port_no)
 
     COVERAGE_INC(dpif_port_del);
 
-    error = dpif->class->port_del(dpif, port_no);
+    error = dpif->dpif_class->port_del(dpif, port_no);
     log_operation(dpif, "port_del", error);
     return error;
 }
@@ -349,7 +348,7 @@ int
 dpif_port_query_by_number(const struct dpif *dpif, uint16_t port_no,
                           struct odp_port *port)
 {
-    int error = dpif->class->port_query_by_number(dpif, port_no, port);
+    int error = dpif->dpif_class->port_query_by_number(dpif, port_no, port);
     if (!error) {
         VLOG_DBG_RL(&dpmsg_rl, "%s: port %"PRIu16" is device %s",
                     dpif_name(dpif), port_no, port->devname);
@@ -368,7 +367,7 @@ int
 dpif_port_query_by_name(const struct dpif *dpif, const char *devname,
                         struct odp_port *port)
 {
-    int error = dpif->class->port_query_by_name(dpif, devname, port);
+    int error = dpif->dpif_class->port_query_by_name(dpif, devname, port);
     if (!error) {
         VLOG_DBG_RL(&dpmsg_rl, "%s: device %s is on port %"PRIu16,
                     dpif_name(dpif), devname, port->port);
@@ -433,7 +432,7 @@ dpif_port_list(const struct dpif *dpif,
         }
 
         ports = xcalloc(stats.n_ports, sizeof *ports);
-        retval = dpif->class->port_list(dpif, ports, stats.n_ports);
+        retval = dpif->dpif_class->port_list(dpif, ports, stats.n_ports);
         if (retval < 0) {
             /* Hard error. */
             error = -retval;
@@ -481,7 +480,7 @@ exit:
 int
 dpif_port_poll(const struct dpif *dpif, char **devnamep)
 {
-    int error = dpif->class->port_poll(dpif, devnamep);
+    int error = dpif->dpif_class->port_poll(dpif, devnamep);
     if (error) {
         *devnamep = NULL;
     }
@@ -493,7 +492,7 @@ dpif_port_poll(const struct dpif *dpif, char **devnamep)
 void
 dpif_port_poll_wait(const struct dpif *dpif)
 {
-    dpif->class->port_poll_wait(dpif);
+    dpif->dpif_class->port_poll_wait(dpif);
 }
 
 /* Retrieves a list of the port numbers in port group 'group' in 'dpif'.
@@ -514,8 +513,8 @@ dpif_port_group_get(const struct dpif *dpif, uint16_t group,
     *ports = NULL;
     *n_ports = 0;
     for (;;) {
-        int retval = dpif->class->port_group_get(dpif, group,
-                                                 *ports, *n_ports);
+        int retval = dpif->dpif_class->port_group_get(dpif, group,
+                                                      *ports, *n_ports);
         if (retval < 0) {
             /* Hard error. */
             error = -retval;
@@ -553,7 +552,7 @@ dpif_port_group_set(struct dpif *dpif, uint16_t group,
 
     COVERAGE_INC(dpif_port_group_set);
 
-    error = dpif->class->port_group_set(dpif, group, ports, n_ports);
+    error = dpif->dpif_class->port_group_set(dpif, group, ports, n_ports);
     log_operation(dpif, "port_group_set", error);
     return error;
 }
@@ -567,7 +566,7 @@ dpif_flow_flush(struct dpif *dpif)
 
     COVERAGE_INC(dpif_flow_flush);
 
-    error = dpif->class->flow_flush(dpif);
+    error = dpif->dpif_class->flow_flush(dpif);
     log_operation(dpif, "flow_flush", error);
     return error;
 }
@@ -593,7 +592,7 @@ dpif_flow_get(const struct dpif *dpif, struct odp_flow *flow)
     COVERAGE_INC(dpif_flow_get);
 
     check_rw_odp_flow(flow);
-    error = dpif->class->flow_get(dpif, flow, 1);
+    error = dpif->dpif_class->flow_get(dpif, flow, 1);
     if (!error) {
         error = flow->stats.error;
     }
@@ -643,7 +642,7 @@ dpif_flow_get_multiple(const struct dpif *dpif,
         check_rw_odp_flow(&flows[i]);
     }
 
-    error = dpif->class->flow_get(dpif, flows, n);
+    error = dpif->dpif_class->flow_get(dpif, flows, n);
     log_operation(dpif, "flow_get_multiple", error);
     return error;
 }
@@ -671,7 +670,7 @@ dpif_flow_put(struct dpif *dpif, struct odp_flow_put *put)
 
     COVERAGE_INC(dpif_flow_put);
 
-    error = dpif->class->flow_put(dpif, put);
+    error = dpif->dpif_class->flow_put(dpif, put);
     if (should_log_flow_message(error)) {
         log_flow_put(dpif, error, put);
     }
@@ -693,7 +692,7 @@ dpif_flow_del(struct dpif *dpif, struct odp_flow *flow)
     check_rw_odp_flow(flow);
     memset(&flow->stats, 0, sizeof flow->stats);
 
-    error = dpif->class->flow_del(dpif, flow);
+    error = dpif->dpif_class->flow_del(dpif, flow);
     if (should_log_flow_message(error)) {
         log_flow_operation(dpif, "delete flow", error, flow);
     }
@@ -722,7 +721,7 @@ dpif_flow_list(const struct dpif *dpif, struct odp_flow flows[], size_t n,
             flows[i].n_actions = 0;
         }
     }
-    retval = dpif->class->flow_list(dpif, flows, n);
+    retval = dpif->dpif_class->flow_list(dpif, flows, n);
     if (retval < 0) {
         *n_out = 0;
         VLOG_WARN_RL(&error_rl, "%s: flow list failed (%s)",
@@ -799,7 +798,8 @@ dpif_execute(struct dpif *dpif, uint16_t in_port,
 
     COVERAGE_INC(dpif_execute);
     if (n_actions > 0) {
-        error = dpif->class->execute(dpif, in_port, actions, n_actions, buf);
+        error = dpif->dpif_class->execute(dpif, in_port, actions,
+                                          n_actions, buf);
     } else {
         error = 0;
     }
@@ -826,7 +826,7 @@ dpif_execute(struct dpif *dpif, uint16_t in_port,
 int
 dpif_recv_get_mask(const struct dpif *dpif, int *listen_mask)
 {
-    int error = dpif->class->recv_get_mask(dpif, listen_mask);
+    int error = dpif->dpif_class->recv_get_mask(dpif, listen_mask);
     if (error) {
         *listen_mask = 0;
     }
@@ -840,22 +840,22 @@ dpif_recv_get_mask(const struct dpif *dpif, int *listen_mask)
 int
 dpif_recv_set_mask(struct dpif *dpif, int listen_mask)
 {
-    int error = dpif->class->recv_set_mask(dpif, listen_mask);
+    int error = dpif->dpif_class->recv_set_mask(dpif, listen_mask);
     log_operation(dpif, "recv_set_mask", error);
     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. */
 int
 dpif_get_sflow_probability(const struct dpif *dpif, uint32_t *probability)
 {
-    int error = (dpif->class->get_sflow_probability
-                 ? dpif->class->get_sflow_probability(dpif, probability)
+    int error = (dpif->dpif_class->get_sflow_probability
+                 ? dpif->dpif_class->get_sflow_probability(dpif, probability)
                  : EOPNOTSUPP);
     if (error) {
         *probability = 0;
@@ -864,17 +864,17 @@ 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. */
 int
 dpif_set_sflow_probability(struct dpif *dpif, uint32_t probability)
 {
-    int error = (dpif->class->set_sflow_probability
-                 ? dpif->class->set_sflow_probability(dpif, probability)
+    int error = (dpif->dpif_class->set_sflow_probability
+                 ? dpif->dpif_class->set_sflow_probability(dpif, probability)
                  : EOPNOTSUPP);
     log_operation(dpif, "set_sflow_probability", error);
     return error;
@@ -891,7 +891,7 @@ dpif_set_sflow_probability(struct dpif *dpif, uint32_t probability)
 int
 dpif_recv(struct dpif *dpif, struct ofpbuf **packetp)
 {
-    int error = dpif->class->recv(dpif, packetp);
+    int error = dpif->dpif_class->recv(dpif, packetp);
     if (!error) {
         if (VLOG_IS_DBG_ENABLED()) {
             struct ofpbuf *buf = *packetp;
@@ -946,7 +946,7 @@ dpif_recv_purge(struct dpif *dpif)
 void
 dpif_recv_wait(struct dpif *dpif)
 {
-    dpif->class->recv_wait(dpif);
+    dpif->dpif_class->recv_wait(dpif);
 }
 
 /* Obtains the NetFlow engine type and engine ID for 'dpif' into '*engine_type'
@@ -960,10 +960,11 @@ dpif_get_netflow_ids(const struct dpif *dpif,
 }
 \f
 void
-dpif_init(struct dpif *dpif, const struct dpif_class *class, const char *name,
+dpif_init(struct dpif *dpif, const struct dpif_class *dpif_class,
+          const char *name,
           uint8_t netflow_engine_type, uint8_t netflow_engine_id)
 {
-    dpif->class = class;
+    dpif->dpif_class = dpif_class;
     dpif->name = xstrdup(name);
     dpif->netflow_engine_type = netflow_engine_type;
     dpif->netflow_engine_id = netflow_engine_id;