datapath: Remove 5-tuple optimization.

[sliver-openvswitch.git] / datapath / datapath.c

diff --git a/datapath/datapath.c b/datapath/datapath.c
index c756e2f..f7c3391 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -400,7 +400,7 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 #endif
                .snd_portid = upcall_info->portid,
        };
-       size_t len, plen;
+       size_t len;
        unsigned int hlen;
        int err, dp_ifindex;
 
@@ -472,9 +472,12 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
        skb_zerocopy(user_skb, skb, skb->len, hlen);
 
        /* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */
-       if (!(dp->user_features & OVS_DP_F_UNALIGNED) &&
-           (plen = (ALIGN(user_skb->len, NLA_ALIGNTO) - user_skb->len)) > 0)
-               memset(skb_put(user_skb, plen), 0, plen);
+       if (!(dp->user_features & OVS_DP_F_UNALIGNED)) {
+               size_t plen = NLA_ALIGN(user_skb->len) - user_skb->len;
+
+               if (plen > 0)
+                       memset(skb_put(user_skb, plen), 0, plen);
+       }
 
        ((struct nlmsghdr *) user_skb->data)->nlmsg_len = user_skb->len;
 
@@ -522,7 +525,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
                packet->protocol = htons(ETH_P_802_2);
 
        /* Build an sw_flow for sending this packet. */
-       flow = ovs_flow_alloc(false);
+       flow = ovs_flow_alloc();
        err = PTR_ERR(flow);
        if (IS_ERR(flow))
                goto err_kfree_skb;
@@ -780,7 +783,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
        struct datapath *dp;
        struct sw_flow_actions *acts = NULL;
        struct sw_flow_match match;
-       bool exact_5tuple;
        int error;
 
        /* Extract key. */
@@ -789,7 +791,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
                goto error;
 
        ovs_match_init(&match, &key, &mask);
-       error = ovs_nla_get_match(&match, &exact_5tuple,
+       error = ovs_nla_get_match(&match,
                                  a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK]);
        if (error)
                goto error;
@@ -828,7 +830,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
                        goto err_unlock_ovs;
 
                /* Allocate flow. */
-               flow = ovs_flow_alloc(!exact_5tuple);
+               flow = ovs_flow_alloc();
                if (IS_ERR(flow)) {
                        error = PTR_ERR(flow);
                        goto err_unlock_ovs;
@@ -862,11 +864,8 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
                        goto err_unlock_ovs;
 
                /* The unmasked key has to be the same for flow updates. */
-               error = -EINVAL;
-               if (!ovs_flow_cmp_unmasked_key(flow, &match)) {
-                       OVS_NLERR("Flow modification message rejected, unmasked key does not match.\n");
+               if (!ovs_flow_cmp_unmasked_key(flow, &match))
                        goto err_unlock_ovs;
-               }
 
                /* Update actions. */
                old_acts = ovsl_dereference(flow->sf_acts);
@@ -915,7 +914,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
        }
 
        ovs_match_init(&match, &key, NULL);
-       err = ovs_nla_get_match(&match, NULL, a[OVS_FLOW_ATTR_KEY], NULL);
+       err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
        if (err)
                return err;
 
@@ -969,7 +968,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
        }
 
        ovs_match_init(&match, &key, NULL);
-       err = ovs_nla_get_match(&match, NULL, a[OVS_FLOW_ATTR_KEY], NULL);
+       err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
        if (err)
                goto unlock;
 
@@ -1089,6 +1088,7 @@ static size_t ovs_dp_cmd_msg_size(void)
        msgsize += nla_total_size(IFNAMSIZ);
        msgsize += nla_total_size(sizeof(struct ovs_dp_stats));
        msgsize += nla_total_size(sizeof(struct ovs_dp_megaflow_stats));
+       msgsize += nla_total_size(sizeof(u32)); /* OVS_DP_ATTR_USER_FEATURES */
 
        return msgsize;
 }
@@ -1178,7 +1178,7 @@ static void ovs_dp_reset_user_features(struct sk_buff *skb, struct genl_info *in
        struct datapath *dp;
 
        dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
-       if (!dp)
+       if (IS_ERR(dp))
                return;
 
        WARN(dp->user_features, "Dropping previously announced user features\n");
@@ -1766,11 +1766,12 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
        int bucket = cb->args[0], skip = cb->args[1];
        int i, j = 0;
 
+       rcu_read_lock();
        dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
-       if (!dp)
+       if (!dp) {
+               rcu_read_unlock();
                return -ENODEV;
-
-       rcu_read_lock();
+       }
        for (i = bucket; i < DP_VPORT_HASH_BUCKETS; i++) {
                struct vport *vport;