Differential D20834 Diff 59610 head/sys/netinet/tcp_hpts.h

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head/sys/netinet/tcp_hpts.h

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	*/			*/

	#define NUM_OF_HPTSI_SLOTS 102400			#define NUM_OF_HPTSI_SLOTS 102400

	TAILQ_HEAD(hptsh, inpcb);			TAILQ_HEAD(hptsh, inpcb);

	/* Number of useconds in a hpts tick */			/* Number of useconds in a hpts tick */
	#define HPTS_TICKS_PER_USEC 10			#define HPTS_TICKS_PER_USEC 10
	#define HPTS_MS_TO_SLOTS(x) (x * 100)			#define HPTS_MS_TO_SLOTS(x) ((x * 100) + 1)
	#define HPTS_USEC_TO_SLOTS(x) ((x+9) /10)			#define HPTS_USEC_TO_SLOTS(x) ((x+9) /10)
	#define HPTS_USEC_IN_SEC 1000000			#define HPTS_USEC_IN_SEC 1000000
	#define HPTS_MSEC_IN_SEC 1000			#define HPTS_MSEC_IN_SEC 1000
	#define HPTS_USEC_IN_MSEC 1000			#define HPTS_USEC_IN_MSEC 1000

	#define DEFAULT_HPTS_LOG 3072

	/*
	* Log flags consist of
	* 7f 7f 1 1 bits
	* p_cpu \| p_num \| INPUT_ACTIVE \| HPTS_ACTIVE
	*
	* So for example cpu 10, number 10 would with
	* input active would show up as:
	* p_flags = 0001010 0001010 1 0
	* <or>
	* p_flags = 0x142a
	*/
	#define HPTS_HPTS_ACTIVE 0x01
	#define HPTS_INPUT_ACTIVE 0x02

	#define HPTSLOG_IMMEDIATE 1
	#define HPTSLOG_INSERT_NORMAL 2
	#define HPTSLOG_INSERT_SLEEPER 3
	#define HPTSLOG_SLEEP_AFTER 4
	#define HPTSLOG_SLEEP_BEFORE 5
	#define HPTSLOG_INSERTED 6
	#define HPTSLOG_WAKEUP_HPTS 7
	#define HPTSLOG_SETTORUN 8
	#define HPTSLOG_HPTSI 9
	#define HPTSLOG_TOLONG 10
	#define HPTSLOG_AWAKENS 11
	#define HPTSLOG_TIMESOUT 12
	#define HPTSLOG_SLEEPSET 13
	#define HPTSLOG_WAKEUP_INPUT 14
	#define HPTSLOG_RESCHEDULE 15
	#define HPTSLOG_AWAKE 16
	#define HPTSLOG_INP_DONE 17

	struct hpts_log {
	struct inpcb *inp;
	int32_t event;
	uint32_t cts;
	int32_t line;
	uint32_t ticknow;
	uint32_t t_paceslot;
	uint32_t t_hptsreq;
	uint32_t p_curtick;
	uint32_t p_prevtick;
	uint32_t slot_req;
	uint32_t p_on_queue_cnt;
	uint32_t p_nxt_slot;
	uint32_t p_cur_slot;
	uint32_t p_hpts_sleep_time;
	uint16_t p_flags;
	uint8_t p_onhpts;
	uint8_t p_oninput;
	uint8_t is_notempty;
	};

	struct hpts_diag {			struct hpts_diag {
	uint32_t p_hpts_active;			uint32_t p_hpts_active; /* bbr->flex7 x */
	uint32_t p_nxt_slot;			uint32_t p_nxt_slot; /* bbr->flex1 x */
	uint32_t p_cur_slot;			uint32_t p_cur_slot; /* bbr->flex2 x */
	uint32_t slot_req;			uint32_t p_prev_slot; /* bbr->delivered */
	uint32_t inp_hptsslot;			uint32_t p_runningtick; /* bbr->inflight */
	uint32_t slot_now;			uint32_t slot_req; /* bbr->flex3 x */
	uint32_t have_slept;			uint32_t inp_hptsslot; /* bbr->flex4 x */
	uint32_t hpts_sleep_time;			uint32_t slot_remaining; /* bbr->flex5 x */
	uint32_t yet_to_sleep;			uint32_t have_slept; /* bbr->epoch x */
	uint32_t need_new_to;			uint32_t hpts_sleep_time; /* bbr->applimited x */
	int32_t co_ret;			uint32_t yet_to_sleep; /* bbr->lt_epoch x */
	uint8_t p_on_min_sleep;			uint32_t need_new_to; /* bbr->flex6 x */
				uint32_t wheel_tick; /* bbr->bw_inuse x */
				uint32_t maxticks; /* bbr->delRate x */
				uint32_t wheel_cts; /* bbr->rttProp x */
				int32_t co_ret; /* bbr->pkts_out x */
				uint32_t p_curtick; /* upper bbr->cur_del_rate */
				uint32_t p_lasttick; /* lower bbr->cur_del_rate */
				uint8_t p_on_min_sleep; /* bbr->flex8 x */
	};			};

				/* Magic flags to tell whats cooking on the pacing wheel */
				#define PACE_TMR_DELACK 0x01 /* Delayed ack timer running */
				#define PACE_TMR_RACK 0x02 /* RACK timer running */
				#define PACE_TMR_TLP 0x04 /* TLP timer running */
				#define PACE_TMR_RXT 0x08 /* Retransmit timer running */
				#define PACE_TMR_PERSIT 0x10 /* Persists timer running */
				#define PACE_TMR_KEEP 0x20 /* Keep alive timer running */
				#define PACE_PKT_OUTPUT 0x40 /* Output Packets being paced */
				#define PACE_TMR_MASK (PACE_TMR_KEEP\|PACE_TMR_PERSIT\|PACE_TMR_RXT\|PACE_TMR_TLP\|PACE_TMR_RACK\|PACE_TMR_DELACK)

	#ifdef _KERNEL			#ifdef _KERNEL
	/* Each hpts has its own p_mtx which is used for locking */			/* Each hpts has its own p_mtx which is used for locking */
	struct tcp_hpts_entry {			struct tcp_hpts_entry {
	/* Cache line 0x00 */			/* Cache line 0x00 */
	struct mtx p_mtx; /* Mutex for hpts */			struct mtx p_mtx; /* Mutex for hpts */
	uint32_t p_hpts_active; /* Flag that says hpts is awake */			uint16_t p_hpts_active; /* Flag that says hpts is awake */
	uint32_t p_curtick; /* Current tick in 10 us the hpts is at */			uint8_t p_hpts_wake_scheduled; /* Have we scheduled a wakeup? */
	uint32_t p_prevtick; /* Previous tick in 10 us the hpts ran */			uint8_t p_wheel_complete; /* have we completed the wheel arc walk? */
				uint32_t p_curtick; /* Tick in 10 us the hpts is going to */
				uint32_t p_runningtick; /* Current tick we are at if we are running */
				uint32_t p_prev_slot; /* Previous slot we were on */
	uint32_t p_cur_slot; /* Current slot in wheel hpts is draining */			uint32_t p_cur_slot; /* Current slot in wheel hpts is draining */
	uint32_t p_nxt_slot; /* The next slot outside the current range of			uint32_t p_nxt_slot; /* The next slot outside the current range of
	* slots that the hpts is running on. */			* slots that the hpts is running on. */
	int32_t p_on_queue_cnt; /* Count on queue in this hpts */			int32_t p_on_queue_cnt; /* Count on queue in this hpts */
	uint32_t enobuf_cnt;			uint32_t p_lasttick; /* Last tick before the current one */
	uint16_t p_log_at;
	uint8_t p_direct_wake :1, /* boolean */			uint8_t p_direct_wake :1, /* boolean */
	p_log_wrapped :1, /* boolean */			p_on_min_sleep:1, /* boolean */
	p_on_min_sleep:1; /* boolean */			p_avail:6;
	uint8_t p_fill;			uint8_t p_fill[3]; /* Fill to 32 bits */
	/* Cache line 0x40 */			/* Cache line 0x40 */
	void *p_inp;			void *p_inp;
	struct hptsh p_input; /* For the tcp-input runner */			struct hptsh p_input; /* For the tcp-input runner */
	/* Hptsi wheel */			/* Hptsi wheel */
	struct hptsh *p_hptss;			struct hptsh *p_hptss;
	struct hpts_log *p_log;
	uint32_t p_logsize;
	int32_t p_on_inqueue_cnt; /* Count on input queue in this hpts */			int32_t p_on_inqueue_cnt; /* Count on input queue in this hpts */
	uint32_t hit_no_enobuf;			uint32_t hit_no_enobuf;
	uint32_t p_dyn_adjust;			uint32_t p_dyn_adjust;
	uint32_t p_hpts_sleep_time; /* Current sleep interval having a max			uint32_t p_hpts_sleep_time; /* Current sleep interval having a max
	* of 255ms */			* of 255ms */
				uint32_t overidden_sleep; /* what was overrided by min-sleep for logging */
				uint32_t saved_lasttick; /* for logging */
				uint32_t saved_curtick; /* for logging */
				uint32_t saved_curslot; /* for logging */
				uint32_t saved_prev_slot; /* for logging */
	uint32_t p_delayed_by; /* How much were we delayed by */			uint32_t p_delayed_by; /* How much were we delayed by */
	/* Cache line 0x80 */			/* Cache line 0x80 */
	struct sysctl_ctx_list hpts_ctx;			struct sysctl_ctx_list hpts_ctx;
	struct sysctl_oid *hpts_root;			struct sysctl_oid *hpts_root;
	struct intr_event *ie;			struct intr_event *ie;
	void *ie_cookie;			void *ie_cookie;
	uint16_t p_num; /* The hpts number one per cpu */			uint16_t p_num; /* The hpts number one per cpu */
	uint16_t p_cpu; /* The hpts CPU */			uint16_t p_cpu; /* The hpts CPU */
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	#define tcp_hpts_insert(a, b) __tcp_hpts_insert(a, b, __LINE__)			#define tcp_hpts_insert(a, b) __tcp_hpts_insert(a, b, __LINE__)

	uint32_t			uint32_t
	tcp_hpts_insert_diag(struct inpcb inp, uint32_t slot, int32_t line, struct hpts_diag diag);			tcp_hpts_insert_diag(struct inpcb inp, uint32_t slot, int32_t line, struct hpts_diag diag);

	int			int
	__tcp_queue_to_input_locked(struct inpcb inp, struct tcp_hpts_entry hpts, int32_t line);			__tcp_queue_to_input_locked(struct inpcb inp, struct tcp_hpts_entry hpts, int32_t line);
	#define tcp_queue_to_input_locked(a, b) __tcp_queue_to_input_locked(a, b, __LINE__);			#define tcp_queue_to_input_locked(a, b) __tcp_queue_to_input_locked(a, b, __LINE__);
	void
	tcp_queue_pkt_to_input(struct tcpcb tp, struct mbuf m, struct tcphdr *th,
	int32_t tlen, int32_t drop_hdrlen, uint8_t iptos);
	int			int
	__tcp_queue_to_input(struct tcpcb tp, struct mbuf m, struct tcphdr *th,			__tcp_queue_to_input(struct inpcb *inp, int32_t line);
	int32_t tlen, int32_t drop_hdrlen, uint8_t iptos, int32_t line);			#define tcp_queue_to_input(a) __tcp_queue_to_input(a, __LINE__)
	#define tcp_queue_to_input(a, b, c, d, e, f, g) __tcp_queue_to_input(a, b, c, d, e, f, g, __LINE__)

	uint16_t tcp_hpts_delayedby(struct inpcb *inp);			uint16_t tcp_hpts_delayedby(struct inpcb *inp);

	void __tcp_set_hpts(struct inpcb *inp, int32_t line);			void __tcp_set_hpts(struct inpcb *inp, int32_t line);
	#define tcp_set_hpts(a) __tcp_set_hpts(a, __LINE__)			#define tcp_set_hpts(a) __tcp_set_hpts(a, __LINE__)

	void __tcp_set_inp_to_drop(struct inpcb *inp, uint16_t reason, int32_t line);			void __tcp_set_inp_to_drop(struct inpcb *inp, uint16_t reason, int32_t line);
	#define tcp_set_inp_to_drop(a, b) __tcp_set_inp_to_drop(a, b, __LINE__)			#define tcp_set_inp_to_drop(a, b) __tcp_set_inp_to_drop(a, b, __LINE__)
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