1 #ifndef __pacer_timer_h__
2 #define __pacer_timer_h__
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29 * __FBSDID("$FreeBSD$");
31 /* Common defines and such used by both RACK and BBR */
32 /* Special values for mss accounting array */
33 #define TCP_MSS_ACCT_JUSTRET 0
34 #define TCP_MSS_ACCT_SNDACK 1
35 #define TCP_MSS_ACCT_PERSIST 2
36 #define TCP_MSS_ACCT_ATIMER 60
37 #define TCP_MSS_ACCT_INPACE 61
38 #define TCP_MSS_ACCT_LATE 62
39 #define TCP_MSS_SMALL_SIZE_OFF 63 /* Point where small sizes enter */
40 #define TCP_MSS_ACCT_SIZE 70
41 #define TCP_MSS_SMALL_MAX_SIZE_DIV (TCP_MSS_ACCT_SIZE - TCP_MSS_SMALL_SIZE_OFF)
44 /* Magic flags to tell whats cooking on the pacing wheel */
45 #define PACE_PKT_OUTPUT 0x01 /* Output Packets being paced */
46 #define PACE_TMR_RACK 0x02 /* RACK timer running */
47 #define PACE_TMR_TLP 0x04 /* TLP timer running */
48 #define PACE_TMR_RXT 0x08 /* Retransmit timer running */
49 #define PACE_TMR_PERSIT 0x10 /* Persists timer running */
50 #define PACE_TMR_KEEP 0x20 /* Keep alive timer running */
51 #define PACE_TMR_DELACK 0x40 /* Delayed ack timer running */
52 #define PACE_TMR_MASK (PACE_TMR_KEEP|PACE_TMR_PERSIT|PACE_TMR_RXT|PACE_TMR_TLP|PACE_TMR_RACK|PACE_TMR_DELACK)
54 /* Magic flags for tracing progress events */
55 #define PROGRESS_DROP 1
56 #define PROGRESS_UPDATE 2
57 #define PROGRESS_CLEAR 3
58 #define PROGRESS_START 4
61 /* RTT sample methods */
62 #define USE_RTT_HIGH 0
67 /* We have only 7 bits in rack so assert its true */
68 CTASSERT((PACE_TMR_MASK & 0x80) == 0);