Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[pandora-kernel.git] / net / dccp / ccids / ccid3.h

diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index 0cdc982..49ca32b 100644 (file)
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -1,7 +1,8 @@
 /*
  *  net/dccp/ccids/ccid3.h
  *
- *  Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2005-7 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2007   The University of Aberdeen, Scotland, UK
  *
  *  An implementation of the DCCP protocol
  *
@@ -40,6 +41,7 @@
 #include <linux/list.h>
 #include <linux/types.h>
 #include <linux/tfrc.h>
+#include "lib/tfrc.h"
 #include "../ccid.h"
 
 /* Two seconds as per RFC 3448 4.2 */
@@ -88,7 +90,6 @@ enum ccid3_hc_tx_states {
  * @ccid3hctx_t_last_win_count - Timestamp of earliest packet
  *                              with last_win_count value sent
  * @ccid3hctx_no_feedback_timer - Handle to no feedback timer
- * @ccid3hctx_idle - Flag indicating that sender is idling
  * @ccid3hctx_t_ld - Time last doubled during slow start
  * @ccid3hctx_t_nom - Nominal send time of next packet
  * @ccid3hctx_delta - Send timer delta (RFC 3448, 4.6) in usecs
@@ -107,13 +108,12 @@ struct ccid3_hc_tx_sock {
        u16                             ccid3hctx_s;
        enum ccid3_hc_tx_states         ccid3hctx_state:8;
        u8                              ccid3hctx_last_win_count;
-       u8                              ccid3hctx_idle;
        ktime_t                         ccid3hctx_t_last_win_count;
        struct timer_list               ccid3hctx_no_feedback_timer;
        ktime_t                         ccid3hctx_t_ld;
        ktime_t                         ccid3hctx_t_nom;
        u32                             ccid3hctx_delta;
-       struct list_head                ccid3hctx_hist;
+       struct tfrc_tx_hist_entry       *ccid3hctx_hist;
        struct ccid3_options_received   ccid3hctx_options_received;
 };
 
@@ -135,37 +135,30 @@ enum ccid3_hc_rx_states {
  *
  *  @ccid3hcrx_x_recv  -  Receiver estimate of send rate (RFC 3448 4.3)
  *  @ccid3hcrx_rtt  -  Receiver estimate of rtt (non-standard)
- *  @ccid3hcrx_p  -  current loss event rate (RFC 3448 5.4)
- *  @ccid3hcrx_seqno_nonloss  -  Last received non-loss sequence number
- *  @ccid3hcrx_ccval_nonloss  -  Last received non-loss Window CCVal
- *  @ccid3hcrx_ccval_last_counter  -  Tracks window counter (RFC 4342, 8.1)
- *  @ccid3hcrx_state  -  receiver state, one of %ccid3_hc_rx_states
+ *  @ccid3hcrx_p  -  Current loss event rate (RFC 3448 5.4)
+ *  @ccid3hcrx_last_counter  -  Tracks window counter (RFC 4342, 8.1)
+ *  @ccid3hcrx_state  -  Receiver state, one of %ccid3_hc_rx_states
  *  @ccid3hcrx_bytes_recv  -  Total sum of DCCP payload bytes
+ *  @ccid3hcrx_x_recv  -  Receiver estimate of send rate (RFC 3448, sec. 4.3)
+ *  @ccid3hcrx_rtt  -  Receiver estimate of RTT
  *  @ccid3hcrx_tstamp_last_feedback  -  Time at which last feedback was sent
  *  @ccid3hcrx_tstamp_last_ack  -  Time at which last feedback was sent
- *  @ccid3hcrx_hist  -  Packet history
- *  @ccid3hcrx_li_hist  -  Loss Interval History
+ *  @ccid3hcrx_hist  -  Packet history (loss detection + RTT sampling)
+ *  @ccid3hcrx_li_hist  -  Loss Interval database
  *  @ccid3hcrx_s  -  Received packet size in bytes
  *  @ccid3hcrx_pinv  -  Inverse of Loss Event Rate (RFC 4342, sec. 8.5)
- *  @ccid3hcrx_elapsed_time  -  Time since packet reception
  */
 struct ccid3_hc_rx_sock {
-       struct tfrc_rx_info             ccid3hcrx_tfrc;
-#define ccid3hcrx_x_recv               ccid3hcrx_tfrc.tfrcrx_x_recv
-#define ccid3hcrx_rtt                  ccid3hcrx_tfrc.tfrcrx_rtt
-#define ccid3hcrx_p                    ccid3hcrx_tfrc.tfrcrx_p
-       u64                             ccid3hcrx_seqno_nonloss:48,
-                                       ccid3hcrx_ccval_nonloss:4,
-                                       ccid3hcrx_ccval_last_counter:4;
+       u8                              ccid3hcrx_last_counter:4;
        enum ccid3_hc_rx_states         ccid3hcrx_state:8;
        u32                             ccid3hcrx_bytes_recv;
+       u32                             ccid3hcrx_x_recv;
+       u32                             ccid3hcrx_rtt;
        ktime_t                         ccid3hcrx_tstamp_last_feedback;
-       ktime_t                         ccid3hcrx_tstamp_last_ack;
-       struct list_head                ccid3hcrx_hist;
-       struct list_head                ccid3hcrx_li_hist;
+       struct tfrc_rx_hist             ccid3hcrx_hist;
+       struct tfrc_loss_hist           ccid3hcrx_li_hist;
        u16                             ccid3hcrx_s;
-       u32                             ccid3hcrx_pinv;
-       u32                             ccid3hcrx_elapsed_time;
+#define ccid3hcrx_pinv                 ccid3hcrx_li_hist.i_mean
 };
 
 static inline struct ccid3_hc_rx_sock *ccid3_hc_rx_sk(const struct sock *sk)