Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / include / linux / dccp.h

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 749f01ccd26ef4ea23e06241b6f0c51f84efbd65..010e2d87ed7568ea1019f57447f671666e56fbb3 100644 (file)
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -197,6 +197,21 @@ enum dccp_feature_numbers {
        DCCPF_MAX_CCID_SPECIFIC = 255,
 };
 
+/* DCCP socket control message types for cmsg */
+enum dccp_cmsg_type {
+       DCCP_SCM_PRIORITY = 1,
+       DCCP_SCM_QPOLICY_MAX = 0xFFFF,
+       /* ^-- Up to here reserved exclusively for qpolicy parameters */
+       DCCP_SCM_MAX
+};
+
+/* DCCP priorities for outgoing/queued packets */
+enum dccp_packet_dequeueing_policy {
+       DCCPQ_POLICY_SIMPLE,
+       DCCPQ_POLICY_PRIO,
+       DCCPQ_POLICY_MAX
+};
+
 /* DCCP socket options */
 #define DCCP_SOCKOPT_PACKET_SIZE       1 /* XXX deprecated, without effect */
 #define DCCP_SOCKOPT_SERVICE           2
@@ -210,6 +225,8 @@ enum dccp_feature_numbers {
 #define DCCP_SOCKOPT_CCID              13
 #define DCCP_SOCKOPT_TX_CCID           14
 #define DCCP_SOCKOPT_RX_CCID           15
+#define DCCP_SOCKOPT_QPOLICY_ID                16
+#define DCCP_SOCKOPT_QPOLICY_TXQLEN    17
 #define DCCP_SOCKOPT_CCID_RX_INFO      128
 #define DCCP_SOCKOPT_CCID_TX_INFO      192
 
@@ -458,10 +475,13 @@ struct dccp_ackvec;
  * @dccps_hc_rx_ccid - CCID used for the receiver (or receiving half-connection)
  * @dccps_hc_tx_ccid - CCID used for the sender (or sending half-connection)
  * @dccps_options_received - parsed set of retrieved options
+ * @dccps_qpolicy - TX dequeueing policy, one of %dccp_packet_dequeueing_policy
+ * @dccps_tx_qlen - maximum length of the TX queue
  * @dccps_role - role of this sock, one of %dccp_role
  * @dccps_hc_rx_insert_options - receiver wants to add options when acking
  * @dccps_hc_tx_insert_options - sender wants to add options when sending
  * @dccps_server_timewait - server holds timewait state on close (RFC 4340, 8.3)
+ * @dccps_sync_scheduled - flag which signals "send out-of-band message soon"
  * @dccps_xmitlet - tasklet scheduled by the TX CCID to dequeue data packets
  * @dccps_xmit_timer - used by the TX CCID to delay sending (rate-based pacing)
  * @dccps_syn_rtt - RTT sample from Request/Response exchange (in usecs)
@@ -499,10 +519,13 @@ struct dccp_sock {
        struct ccid                     *dccps_hc_rx_ccid;
        struct ccid                     *dccps_hc_tx_ccid;
        struct dccp_options_received    dccps_options_received;
+       __u8                            dccps_qpolicy;
+       __u32                           dccps_tx_qlen;
        enum dccp_role                  dccps_role:2;
        __u8                            dccps_hc_rx_insert_options:1;
        __u8                            dccps_hc_tx_insert_options:1;
        __u8                            dccps_server_timewait:1;
+       __u8                            dccps_sync_scheduled:1;
        struct tasklet_struct           dccps_xmitlet;
        struct timer_list               dccps_xmit_timer;
 };