X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fdpif-netdev.c;h=1cab12ba163e78cc998782be0f1c126b864c51b6;hb=0c30c8f1c419811cbb5fdc441af95ba3f763f0ff;hp=4c25f1393884004b732b107cba4bca8d04c95ed9;hpb=4d678233e981fa319a338f6b0949e9dc625941a4;p=openvswitch

diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 4c25f139..1cab12ba 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -64,7 +64,7 @@ struct dp_netdev {
     struct list node;
     int dp_idx;
     int open_cnt;
-    bool deleted;
+    bool destroyed;
 
     bool drop_frags;            /* Drop all IP fragments, if true. */
     struct ovs_queue queues[N_QUEUES]; /* Messages queued for dpif_recv(). */
@@ -196,7 +196,7 @@ create_dpif_netdev(struct dp_netdev *dp)
 
     dp->open_cnt++;
 
-    dpname = xasprintf("netdev:dp%d", dp->dp_idx);
+    dpname = xasprintf("dp%d", dp->dp_idx);
     dpif = xmalloc(sizeof *dpif);
     dpif_init(&dpif->dpif, &dpif_netdev_class, dpname, dp->dp_idx, dp->dp_idx);
     dpif->dp = dp;
@@ -219,7 +219,7 @@ create_dp_netdev(const char *name, int dp_idx, struct dpif **dpifp)
     }
 
     /* Create datapath. */
-    dp_netdevs[dp_idx] = dp = xcalloc(1, sizeof *dp);
+    dp_netdevs[dp_idx] = dp = xzalloc(sizeof *dp);
     list_push_back(&dp_netdev_list, &dp->node);
     dp->dp_idx = dp_idx;
     dp->open_cnt = 0;
@@ -237,7 +237,7 @@ create_dp_netdev(const char *name, int dp_idx, struct dpif **dpifp)
     error = do_add_port(dp, name, ODP_PORT_INTERNAL, ODPP_LOCAL);
     if (error) {
         dp_netdev_free(dp);
-        return error;
+        return ENODEV;
     }
 
     *dpifp = create_dpif_netdev(dp);
@@ -245,20 +245,20 @@ create_dp_netdev(const char *name, int dp_idx, struct dpif **dpifp)
 }
 
 static int
-dpif_netdev_open(const char *name UNUSED, char *suffix, bool create,
+dpif_netdev_open(const char *name, const char *type OVS_UNUSED, bool create,
                  struct dpif **dpifp)
 {
     if (create) {
-        if (find_dp_netdev(suffix)) {
+        if (find_dp_netdev(name)) {
             return EEXIST;
         } else {
-            int dp_idx = name_to_dp_idx(suffix);
+            int dp_idx = name_to_dp_idx(name);
             if (dp_idx >= 0) {
-                return create_dp_netdev(suffix, dp_idx, dpifp);
+                return create_dp_netdev(name, dp_idx, dpifp);
             } else {
                 /* Scan for unused dp_idx number. */
                 for (dp_idx = 0; dp_idx < N_DP_NETDEVS; dp_idx++) {
-                    int error = create_dp_netdev(suffix, dp_idx, dpifp);
+                    int error = create_dp_netdev(name, dp_idx, dpifp);
                     if (error != EBUSY) {
                         return error;
                     }
@@ -269,7 +269,7 @@ dpif_netdev_open(const char *name UNUSED, char *suffix, bool create,
             }
         }
     } else {
-        struct dp_netdev *dp = find_dp_netdev(suffix);
+        struct dp_netdev *dp = find_dp_netdev(name);
         if (dp) {
             *dpifp = create_dpif_netdev(dp);
             return 0;
@@ -307,17 +307,17 @@ dpif_netdev_close(struct dpif *dpif)
 {
     struct dp_netdev *dp = get_dp_netdev(dpif);
     assert(dp->open_cnt > 0);
-    if (--dp->open_cnt == 0 && dp->deleted) {
+    if (--dp->open_cnt == 0 && dp->destroyed) {
         dp_netdev_free(dp);
     }
     free(dpif);
 }
 
 static int
-dpif_netdev_delete(struct dpif *dpif)
+dpif_netdev_destroy(struct dpif *dpif)
 {
     struct dp_netdev *dp = get_dp_netdev(dpif);
-    dp->deleted = true;
+    dp->destroyed = true;
     return 0;
 }
 
@@ -363,6 +363,7 @@ do_add_port(struct dp_netdev *dp, const char *devname, uint16_t flags,
 {
     bool internal = (flags & ODP_PORT_INTERNAL) != 0;
     struct dp_netdev_port *port;
+    struct netdev_options netdev_options;
     struct netdev *netdev;
     int mtu;
     int error;
@@ -370,13 +371,17 @@ do_add_port(struct dp_netdev *dp, const char *devname, uint16_t flags,
     /* XXX reject devices already in some dp_netdev. */
 
     /* Open and validate network device. */
-    if (!internal) {
-        error = netdev_open(devname, NETDEV_ETH_TYPE_ANY, &netdev);
+    memset(&netdev_options, 0, sizeof netdev_options);
+    netdev_options.name = devname;
+    netdev_options.ethertype = NETDEV_ETH_TYPE_ANY;
+    netdev_options.may_create = true;
+    if (internal) {
+        netdev_options.type = "tap";
     } else {
-        char *tapname = xasprintf("tap:%s", devname);
-        error = netdev_open(tapname, NETDEV_ETH_TYPE_ANY, &netdev);
-        free(tapname);
+        netdev_options.may_open = true;
     }
+
+    error = netdev_open(&netdev_options, &netdev);
     if (error) {
         return error;
     }
@@ -468,6 +473,7 @@ static int
 do_del_port(struct dp_netdev *dp, uint16_t port_no)
 {
     struct dp_netdev_port *port;
+    char *name;
     int error;
 
     error = get_port_by_number(dp, port_no, &port);
@@ -480,7 +486,10 @@ do_del_port(struct dp_netdev *dp, uint16_t port_no)
     dp->n_ports--;
     dp->serial++;
 
+    name = xstrdup(netdev_get_name(port->netdev));
     netdev_close(port->netdev);
+
+    free(name);
     free(port);
 
     return 0;
@@ -573,7 +582,7 @@ dpif_netdev_port_list(const struct dpif *dpif, struct odp_port *ports, int n)
 }
 
 static int
-dpif_netdev_port_poll(const struct dpif *dpif_, char **devnamep UNUSED)
+dpif_netdev_port_poll(const struct dpif *dpif_, char **devnamep OVS_UNUSED)
 {
     struct dpif_netdev *dpif = dpif_netdev_cast(dpif_);
     if (dpif->dp_serial != dpif->dp->serial) {
@@ -654,7 +663,7 @@ dp_netdev_lookup_flow(const struct dp_netdev *dp, const flow_t *key)
 {
     struct dp_netdev_flow *flow;
 
-    assert(key->reserved == 0);
+    assert(!key->reserved[0] && !key->reserved[1] && !key->reserved[2]);
     HMAP_FOR_EACH_WITH_HASH (flow, struct dp_netdev_flow, node,
                              flow_hash(key, 0), &dp->flow_table) {
         if (flow_equal(&flow->key, key)) {
@@ -665,7 +674,7 @@ dp_netdev_lookup_flow(const struct dp_netdev *dp, const flow_t *key)
 }
 
 static void
-answer_flow_query(const struct dp_netdev_flow *flow,
+answer_flow_query(struct dp_netdev_flow *flow, uint32_t query_flags,
                   struct odp_flow *odp_flow)
 {
     if (flow) {
@@ -683,6 +692,11 @@ answer_flow_query(const struct dp_netdev_flow *flow,
                    n * sizeof *odp_flow->actions);
             odp_flow->n_actions = flow->n_actions;
         }
+
+        if (query_flags & ODPFF_ZERO_TCP_FLAGS) {
+            flow->tcp_ctl = 0;
+        }
+
     } else {
         odp_flow->stats.error = ENOENT;
     }
@@ -696,7 +710,8 @@ dpif_netdev_flow_get(const struct dpif *dpif, struct odp_flow flows[], int n)
 
     for (i = 0; i < n; i++) {
         struct odp_flow *odp_flow = &flows[i];
-        answer_flow_query(dp_netdev_lookup_flow(dp, &odp_flow->key), odp_flow);
+        answer_flow_query(dp_netdev_lookup_flow(dp, &odp_flow->key),
+                          odp_flow->flags, odp_flow);
     }
     return 0;
 }
@@ -746,6 +761,7 @@ dpif_netdev_validate_actions(const union odp_action *actions, int n_actions,
         case ODPAT_SET_DL_DST:
         case ODPAT_SET_NW_SRC:
         case ODPAT_SET_NW_DST:
+        case ODPAT_SET_NW_TOS:
         case ODPAT_SET_TP_SRC:
         case ODPAT_SET_TP_DST:
             *mutates = true;
@@ -788,9 +804,9 @@ add_flow(struct dpif *dpif, struct odp_flow *odp_flow)
     struct dp_netdev_flow *flow;
     int error;
 
-    flow = xcalloc(1, sizeof *flow);
+    flow = xzalloc(sizeof *flow);
     flow->key = odp_flow->key;
-    flow->key.reserved = 0;
+    memset(flow->key.reserved, 0, sizeof flow->key.reserved);
 
     error = set_flow_actions(flow, odp_flow);
     if (error) {
@@ -852,7 +868,7 @@ dpif_netdev_flow_del(struct dpif *dpif, struct odp_flow *odp_flow)
 
     flow = dp_netdev_lookup_flow(dp, &odp_flow->key);
     if (flow) {
-        answer_flow_query(flow, odp_flow);
+        answer_flow_query(flow, 0, odp_flow);
         dp_netdev_free_flow(dp, flow);
         return 0;
     } else {
@@ -872,7 +888,7 @@ dpif_netdev_flow_list(const struct dpif *dpif, struct odp_flow flows[], int n)
         if (i >= n) {
             break;
         }
-        answer_flow_query(flow, &flows[i++]);
+        answer_flow_query(flow, 0, &flows[i++]);
     }
     return hmap_count(&dp->flow_table);
 }
@@ -1155,6 +1171,23 @@ dp_netdev_set_nw_addr(struct ofpbuf *packet, flow_t *key,
     }
 }
 
+static void
+dp_netdev_set_nw_tos(struct ofpbuf *packet, flow_t *key,
+                     const struct odp_action_nw_tos *a)
+{
+    if (key->dl_type == htons(ETH_TYPE_IP)) {
+        struct ip_header *nh = packet->l3;
+        uint8_t *field = &nh->ip_tos;
+
+        /* We only set the lower 6 bits. */
+        uint8_t new = (a->nw_tos & 0x3f) | (nh->ip_tos & 0xc0);
+
+        nh->ip_csum = recalc_csum16(nh->ip_csum, htons((uint16_t)*field),
+                htons((uint16_t)a->nw_tos));
+        *field = new;
+    }
+}
+
 static void
 dp_netdev_set_tp_port(struct ofpbuf *packet, flow_t *key,
                       const struct odp_action_tp_port *a)
@@ -1278,6 +1311,10 @@ dp_netdev_execute_actions(struct dp_netdev *dp,
 			dp_netdev_set_nw_addr(packet, key, &a->nw_addr);
 			break;
 
+		case ODPAT_SET_NW_TOS:
+			dp_netdev_set_nw_tos(packet, key, &a->nw_tos);
+			break;
+
 		case ODPAT_SET_TP_SRC:
 		case ODPAT_SET_TP_DST:
 			dp_netdev_set_tp_port(packet, key, &a->tp_port);
@@ -1288,7 +1325,6 @@ dp_netdev_execute_actions(struct dp_netdev *dp,
 }
 
 const struct dpif_class dpif_netdev_class = {
-    "netdev",
     "netdev",
     dp_netdev_run,
     dp_netdev_wait,
@@ -1296,7 +1332,7 @@ const struct dpif_class dpif_netdev_class = {
     dpif_netdev_open,
     dpif_netdev_close,
     NULL,                       /* get_all_names */
-    dpif_netdev_delete,
+    dpif_netdev_destroy,
     dpif_netdev_get_stats,
     dpif_netdev_get_drop_frags,
     dpif_netdev_set_drop_frags,
@@ -1317,6 +1353,8 @@ const struct dpif_class dpif_netdev_class = {
     dpif_netdev_execute,
     dpif_netdev_recv_get_mask,
     dpif_netdev_recv_set_mask,
+    NULL,                       /* get_sflow_probability */
+    NULL,                       /* set_sflow_probability */
     dpif_netdev_recv,
     dpif_netdev_recv_wait,
 };