diff options
Diffstat (limited to 'net/dccp/ccids/ccid3.h')
| -rw-r--r-- | net/dccp/ccids/ccid3.h | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h index 0cdc982cfe47..49ca32bd7e79 100644 --- 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) |