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datapath: support Linux 3.7
[cascardo/ovs.git] / datapath / datapath.c
diff --git a/datapath/datapath.c b/datapath/datapath.c
index c9485ca..7e6ba91 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -61,8 +61,8 @@
 #include "vport-internal_dev.h"
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) || \
-    LINUX_VERSION_CODE >= KERNEL_VERSION(3,7,0)
-#error Kernels before 2.6.18 or after 3.6 are not supported by this version of Open vSwitch.
+    LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)
+#error Kernels before 2.6.18 or after 3.7 are not supported by this version of Open vSwitch.
 #endif
 
 #define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
@@ -331,7 +331,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
                        upcall.cmd = OVS_PACKET_CMD_MISS;
                        upcall.key = &key;
                        upcall.userdata = NULL;
-                       upcall.pid = p->upcall_pid;
+                       upcall.portid = p->upcall_portid;
                        ovs_dp_upcall(dp, skb, &upcall);
                        consume_skb(skb);
                        stats_counter = &stats->n_missed;
@@ -368,7 +368,7 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
        int dp_ifindex;
        int err;
 
-       if (upcall_info->pid == 0) {
+       if (upcall_info->portid == 0) {
                err = -ENOTCONN;
                goto err;
        }
@@ -503,7 +503,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex,
 
        skb_copy_and_csum_dev(skb, nla_data(nla));
 
-       err = genlmsg_unicast(net, user_skb, upcall_info->pid);
+       err = genlmsg_unicast(net, user_skb, upcall_info->portid);
 
 out:
        kfree_skb(nskb);
@@ -920,7 +920,7 @@ static struct genl_multicast_group ovs_dp_flow_multicast_group = {
 
 /* Called with genl_lock. */
 static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
-                                 struct sk_buff *skb, u32 pid,
+                                 struct sk_buff *skb, u32 portid,
                                  u32 seq, u32 flags, u8 cmd)
 {
        const int skb_orig_len = skb->len;
@@ -935,7 +935,7 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
        sf_acts = rcu_dereference_protected(flow->sf_acts,
                                            lockdep_genl_is_held());
 
-       ovs_header = genlmsg_put(skb, pid, seq, &dp_flow_genl_family, flags, cmd);
+       ovs_header = genlmsg_put(skb, portid, seq, &dp_flow_genl_family, flags, cmd);
        if (!ovs_header)
                return -EMSGSIZE;
 
@@ -1019,7 +1019,7 @@ static struct sk_buff *ovs_flow_cmd_alloc_info(struct sw_flow *flow)
 
 static struct sk_buff *ovs_flow_cmd_build_info(struct sw_flow *flow,
                                               struct datapath *dp,
-                                              u32 pid, u32 seq, u8 cmd)
+                                              u32 portid, u32 seq, u8 cmd)
 {
        struct sk_buff *skb;
        int retval;
@@ -1028,7 +1028,7 @@ static struct sk_buff *ovs_flow_cmd_build_info(struct sw_flow *flow,
        if (!skb)
                return ERR_PTR(-ENOMEM);
 
-       retval = ovs_flow_cmd_fill_info(flow, dp, skb, pid, seq, 0, cmd);
+       retval = ovs_flow_cmd_fill_info(flow, dp, skb, portid, seq, 0, cmd);
        BUG_ON(retval < 0);
        return skb;
 }
@@ -1108,7 +1108,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
                /* Put flow in bucket. */
                ovs_flow_tbl_insert(table, flow, &key, key_len);
 
-               reply = ovs_flow_cmd_build_info(flow, dp, info->snd_pid,
+               reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
                                                info->snd_seq,
                                                OVS_FLOW_CMD_NEW);
        } else {
@@ -1146,7 +1146,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
                        ovs_flow_deferred_free_acts(old_acts);
                }
 
-               reply = ovs_flow_cmd_build_info(flow, dp, info->snd_pid,
+               reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
                                               info->snd_seq, OVS_FLOW_CMD_NEW);
 
                /* Clear stats. */
@@ -1158,7 +1158,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
        }
 
        if (!IS_ERR(reply))
-               genl_notify(reply, genl_info_net(info), info->snd_pid,
+               genl_notify(reply, genl_info_net(info), info->snd_portid,
                           ovs_dp_flow_multicast_group.id, info->nlhdr,
                           GFP_KERNEL);
        else
@@ -1199,7 +1199,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
        if (!flow)
                return -ENOENT;
 
-       reply = ovs_flow_cmd_build_info(flow, dp, info->snd_pid,
+       reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
                                        info->snd_seq, OVS_FLOW_CMD_NEW);
        if (IS_ERR(reply))
                return PTR_ERR(reply);
@@ -1241,13 +1241,13 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 
        ovs_flow_tbl_remove(table, flow);
 
-       err = ovs_flow_cmd_fill_info(flow, dp, reply, info->snd_pid,
+       err = ovs_flow_cmd_fill_info(flow, dp, reply, info->snd_portid,
                                     info->snd_seq, 0, OVS_FLOW_CMD_DEL);
        BUG_ON(err < 0);
 
        ovs_flow_deferred_free(flow);
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_flow_multicast_group.id, info->nlhdr, GFP_KERNEL);
        return 0;
 }
@@ -1275,7 +1275,7 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
                        break;
 
                if (ovs_flow_cmd_fill_info(flow, dp, skb,
-                                          NETLINK_CB(cb->skb).pid,
+                                          NETLINK_CB(cb->skb).portid,
                                           cb->nlh->nlmsg_seq, NLM_F_MULTI,
                                           OVS_FLOW_CMD_NEW) < 0)
                        break;
@@ -1331,13 +1331,13 @@ static struct genl_multicast_group ovs_dp_datapath_multicast_group = {
 };
 
 static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
-                               u32 pid, u32 seq, u32 flags, u8 cmd)
+                               u32 portid, u32 seq, u32 flags, u8 cmd)
 {
        struct ovs_header *ovs_header;
        struct ovs_dp_stats dp_stats;
        int err;
 
-       ovs_header = genlmsg_put(skb, pid, seq, &dp_datapath_genl_family,
+       ovs_header = genlmsg_put(skb, portid, seq, &dp_datapath_genl_family,
                                   flags, cmd);
        if (!ovs_header)
                goto error;
@@ -1362,7 +1362,7 @@ error:
        return -EMSGSIZE;
 }
 
-static struct sk_buff *ovs_dp_cmd_build_info(struct datapath *dp, u32 pid,
+static struct sk_buff *ovs_dp_cmd_build_info(struct datapath *dp, u32 portid,
                                             u32 seq, u8 cmd)
 {
        struct sk_buff *skb;
@@ -1372,7 +1372,7 @@ static struct sk_buff *ovs_dp_cmd_build_info(struct datapath *dp, u32 pid,
        if (!skb)
                return ERR_PTR(-ENOMEM);
 
-       retval = ovs_dp_cmd_fill_info(dp, skb, pid, seq, 0, cmd);
+       retval = ovs_dp_cmd_fill_info(dp, skb, portid, seq, 0, cmd);
        if (retval < 0) {
                kfree_skb(skb);
                return ERR_PTR(retval);
@@ -1465,7 +1465,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
        parms.options = NULL;
        parms.dp = dp;
        parms.port_no = OVSP_LOCAL;
-       parms.upcall_pid = nla_get_u32(a[OVS_DP_ATTR_UPCALL_PID]);
+       parms.upcall_portid = nla_get_u32(a[OVS_DP_ATTR_UPCALL_PID]);
 
        vport = new_vport(&parms);
        if (IS_ERR(vport)) {
@@ -1476,7 +1476,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
                goto err_destroy_ports_array;
        }
 
-       reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
+       reply = ovs_dp_cmd_build_info(dp, info->snd_portid,
                                      info->snd_seq, OVS_DP_CMD_NEW);
        err = PTR_ERR(reply);
        if (IS_ERR(reply))
@@ -1488,7 +1488,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
        rtnl_unlock();
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_datapath_multicast_group.id, info->nlhdr,
                    GFP_KERNEL);
        return 0;
@@ -1555,7 +1555,7 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
        if (IS_ERR(dp))
                return err;
 
-       reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
+       reply = ovs_dp_cmd_build_info(dp, info->snd_portid,
                                      info->snd_seq, OVS_DP_CMD_DEL);
        err = PTR_ERR(reply);
        if (IS_ERR(reply))
@@ -1563,7 +1563,7 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
 
        __dp_destroy(dp);
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_datapath_multicast_group.id, info->nlhdr,
                    GFP_KERNEL);
 
@@ -1584,7 +1584,7 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
        if (IS_ERR(dp))
                return PTR_ERR(dp);
 
-       reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
+       reply = ovs_dp_cmd_build_info(dp, info->snd_portid,
                                      info->snd_seq, OVS_DP_CMD_NEW);
        if (IS_ERR(reply)) {
                err = PTR_ERR(reply);
@@ -1593,7 +1593,7 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
                return 0;
        }
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_datapath_multicast_group.id, info->nlhdr,
                    GFP_KERNEL);
 
@@ -1614,7 +1614,7 @@ static int ovs_dp_cmd_get(struct sk_buff *skb, struct genl_info *info)
        if (IS_ERR(dp))
                return PTR_ERR(dp);
 
-       reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
+       reply = ovs_dp_cmd_build_info(dp, info->snd_portid,
                                      info->snd_seq, OVS_DP_CMD_NEW);
        if (IS_ERR(reply))
                return PTR_ERR(reply);
@@ -1631,7 +1631,7 @@ static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 
        list_for_each_entry(dp, &ovs_net->dps, list_node) {
                if (i >= skip &&
-                   ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).pid,
+                   ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).portid,
                                         cb->nlh->nlmsg_seq, NLM_F_MULTI,
                                         OVS_DP_CMD_NEW) < 0)
                        break;
@@ -1697,13 +1697,13 @@ struct genl_multicast_group ovs_dp_vport_multicast_group = {
 
 /* Called with RTNL lock or RCU read lock. */
 static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
-                                  u32 pid, u32 seq, u32 flags, u8 cmd)
+                                  u32 portid, u32 seq, u32 flags, u8 cmd)
 {
        struct ovs_header *ovs_header;
        struct ovs_vport_stats vport_stats;
        int err;
 
-       ovs_header = genlmsg_put(skb, pid, seq, &dp_vport_genl_family,
+       ovs_header = genlmsg_put(skb, portid, seq, &dp_vport_genl_family,
                                 flags, cmd);
        if (!ovs_header)
                return -EMSGSIZE;
@@ -1713,7 +1713,7 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
        if (nla_put_u32(skb, OVS_VPORT_ATTR_PORT_NO, vport->port_no) ||
            nla_put_u32(skb, OVS_VPORT_ATTR_TYPE, vport->ops->type) ||
            nla_put_string(skb, OVS_VPORT_ATTR_NAME, vport->ops->get_name(vport)) ||
-           nla_put_u32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_pid))
+           nla_put_u32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_portid))
                goto nla_put_failure;
 
        ovs_vport_get_stats(vport, &vport_stats);
@@ -1739,7 +1739,7 @@ error:
 }
 
 /* Called with RTNL lock or RCU read lock. */
-struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, u32 pid,
+struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, u32 portid,
                                         u32 seq, u8 cmd)
 {
        struct sk_buff *skb;
@@ -1749,7 +1749,7 @@ struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, u32 pid,
        if (!skb)
                return ERR_PTR(-ENOMEM);
 
-       retval = ovs_vport_cmd_fill_info(vport, skb, pid, seq, 0, cmd);
+       retval = ovs_vport_cmd_fill_info(vport, skb, portid, seq, 0, cmd);
        if (retval < 0) {
                kfree_skb(skb);
                return ERR_PTR(retval);
@@ -1865,7 +1865,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
        parms.options = a[OVS_VPORT_ATTR_OPTIONS];
        parms.dp = dp;
        parms.port_no = port_no;
-       parms.upcall_pid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
+       parms.upcall_portid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
 
        vport = new_vport(&parms);
        err = PTR_ERR(vport);
@@ -1876,7 +1876,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
        err = change_vport(vport, a);
        if (!err) {
-               reply = ovs_vport_cmd_build_info(vport, info->snd_pid,
+               reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
                                                 info->snd_seq,
                                                 OVS_VPORT_CMD_NEW);
                if (IS_ERR(reply))
@@ -1886,7 +1886,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
                ovs_dp_detach_port(vport);
                goto exit_unlock;
        }
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_vport_multicast_group.id, info->nlhdr, GFP_KERNEL);
 
 exit_unlock:
@@ -1924,17 +1924,17 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
        else
                goto exit_unlock;
        if (!err && a[OVS_VPORT_ATTR_UPCALL_PID])
-               vport->upcall_pid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
+               vport->upcall_portid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
 
-       reply = ovs_vport_cmd_build_info(vport, info->snd_pid, info->snd_seq,
-                                        OVS_VPORT_CMD_NEW);
+       reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
+                                        info->snd_seq, OVS_VPORT_CMD_NEW);
        if (IS_ERR(reply)) {
                netlink_set_err(GENL_SOCK(sock_net(skb->sk)), 0,
                                ovs_dp_vport_multicast_group.id, PTR_ERR(reply));
                goto exit_unlock;
        }
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_vport_multicast_group.id, info->nlhdr, GFP_KERNEL);
 
 exit_unlock:
@@ -1965,15 +1965,15 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
                goto exit_unlock;
        }
 
-       reply = ovs_vport_cmd_build_info(vport, info->snd_pid, info->snd_seq,
-                                        OVS_VPORT_CMD_DEL);
+       reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
+                                        info->snd_seq, OVS_VPORT_CMD_DEL);
        err = PTR_ERR(reply);
        if (IS_ERR(reply))
                goto exit_unlock;
 
        ovs_dp_detach_port(vport);
 
-       genl_notify(reply, genl_info_net(info), info->snd_pid,
+       genl_notify(reply, genl_info_net(info), info->snd_portid,
                    ovs_dp_vport_multicast_group.id, info->nlhdr, GFP_KERNEL);
 
 exit_unlock:
@@ -2000,8 +2000,8 @@ static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info)
        if (IS_ERR(vport))
                goto exit_unlock;
 
-       reply = ovs_vport_cmd_build_info(vport, info->snd_pid, info->snd_seq,
-                                        OVS_VPORT_CMD_NEW);
+       reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
+                                        info->snd_seq, OVS_VPORT_CMD_NEW);
        err = PTR_ERR(reply);
        if (IS_ERR(reply))
                goto exit_unlock;
@@ -2036,7 +2036,7 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
                hlist_for_each_entry_rcu(vport, n, &dp->ports[i], dp_hash_node) {
                        if (j >= skip &&
                            ovs_vport_cmd_fill_info(vport, skb,
-                                                   NETLINK_CB(cb->skb).pid,
+                                                   NETLINK_CB(cb->skb).portid,
                                                    cb->nlh->nlmsg_seq,
                                                    NLM_F_MULTI,
                                                    OVS_VPORT_CMD_NEW) < 0)
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