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	diff --git a/sys/netinet/in_pcb.h b/sys/netinet/in_pcb.h
	--- a/sys/netinet/in_pcb.h
	+++ b/sys/netinet/in_pcb.h
	@@ -590,8 +590,8 @@
	/*
	* Flags for inp_flags2.
	*/
	-#define INP_MBUF_L_ACKS 0x00000001 /* We need large mbufs for ack compression */
	-#define INP_MBUF_ACKCMP 0x00000002 /* TCP mbuf ack compression ok */
	+/* 0x00000001 */
	+/* 0x00000002 */
	/* 0x00000004 */
	#define INP_REUSEPORT 0x00000008 /* SO_REUSEPORT option is set */
	/* 0x00000010 */
	@@ -602,11 +602,11 @@
	#define INP_RECVRSSBUCKETID 0x00000200 /* populate recv datagram with bucket id */
	#define INP_RATE_LIMIT_CHANGED 0x00000400 /* rate limit needs attention */
	#define INP_ORIGDSTADDR 0x00000800 /* receive IP dst address/port */
	-#define INP_CANNOT_DO_ECN 0x00001000 /* The stack does not do ECN */
	+/* 0x00001000 */
	#define INP_REUSEPORT_LB 0x00002000 /* SO_REUSEPORT_LB option is set */
	-#define INP_SUPPORTS_MBUFQ 0x00004000 /* Supports the mbuf queue method of LRO */
	-#define INP_MBUF_QUEUE_READY 0x00008000 /* The transport is pacing, inputs can be queued */
	-#define INP_DONT_SACK_QUEUE 0x00010000 /* If a sack arrives do not wake me */
	+/* 0x00004000 */
	+/* 0x00008000 */
	+/* 0x00010000 */
	#define INP_2PCP_SET 0x00020000 /* If the Eth PCP should be set explicitly */
	#define INP_2PCP_BIT0 0x00040000 /* Eth PCP Bit 0 */
	#define INP_2PCP_BIT1 0x00080000 /* Eth PCP Bit 1 */
	diff --git a/sys/netinet/tcp_hpts.c b/sys/netinet/tcp_hpts.c
	--- a/sys/netinet/tcp_hpts.c
	+++ b/sys/netinet/tcp_hpts.c
	@@ -1370,7 +1370,7 @@
	* cause a call to output if it is needed.
	*/
	tp->t_flags2 \|= TF2_HPTS_CALLS;
	- if ((inp->inp_flags2 & INP_SUPPORTS_MBUFQ) &&
	+ if ((tp->t_flags2 & TF2_SUPPORTS_MBUFQ) &&
	!STAILQ_EMPTY(&tp->t_inqueue)) {
	error = (*tp->t_fb->tfb_do_queued_segments)(tp, 0);
	if (error) {
	diff --git a/sys/netinet/tcp_lro.c b/sys/netinet/tcp_lro.c
	--- a/sys/netinet/tcp_lro.c
	+++ b/sys/netinet/tcp_lro.c
	@@ -91,7 +91,7 @@
	uint32_t csum, bool use_hash);

	#ifdef TCPHPTS
	-static bool do_bpf_strip_and_compress(struct inpcb , struct lro_ctrl ,
	+static bool do_bpf_strip_and_compress(struct tcpcb , struct lro_ctrl ,
	struct lro_entry , struct mbuf , struct mbuf , struct mbuf *,
	bool , bool, bool, struct ifnet , bool);

	@@ -1192,13 +1192,9 @@
	}

	static bool
	-tcp_lro_check_wake_status(struct inpcb *inp)
	+tcp_lro_check_wake_status(struct tcpcb *tp)
	{
	- struct tcpcb *tp;

	- tp = intotcpcb(inp);
	- if (__predict_false(tp == NULL))
	- return (true);
	if (tp->t_fb->tfb_early_wake_check != NULL)
	return ((tp->t_fb->tfb_early_wake_check)(tp));
	return (false);
	@@ -1206,15 +1202,10 @@

	static struct mbuf *
	tcp_lro_get_last_if_ackcmp(struct lro_ctrl lc, struct lro_entry le,
	- struct inpcb inp, int32_t new_m, bool can_append_old_cmp)
	+ struct tcpcb tp, int32_t new_m, bool can_append_old_cmp)
	{
	- struct tcpcb *tp;
	struct mbuf *m;

	- tp = intotcpcb(inp);
	- if (__predict_false(tp == NULL))
	- return (NULL);
	-
	/* Look at the last mbuf if any in queue */
	if (can_append_old_cmp) {
	m = STAILQ_LAST(&tp->t_inqueue, mbuf, m_stailqpkt);
	@@ -1226,13 +1217,13 @@
	return (m);
	} else {
	/* Mark we ran out of space */
	- inp->inp_flags2 \|= INP_MBUF_L_ACKS;
	+ tp->t_flags2 \|= TF2_MBUF_L_ACKS;
	}
	}
	}
	/* Decide mbuf size. */
	tcp_lro_log(tp, lc, le, NULL, 21, 0, 0, 0, 0);
	- if (inp->inp_flags2 & INP_MBUF_L_ACKS)
	+ if (tp->t_flags2 & TF2_MBUF_L_ACKS)
	m = m_getcl(M_NOWAIT, MT_DATA, M_ACKCMP \| M_PKTHDR);
	else
	m = m_gethdr(M_NOWAIT, MT_DATA);
	@@ -1248,7 +1239,7 @@
	return (m);
	}

	-static struct inpcb *
	+static struct tcpcb *
	tcp_lro_lookup(struct ifnet ifp, struct lro_parser pa)
	{
	struct inpcb *inp;
	@@ -1277,10 +1268,10 @@
	break;
	#endif
	default:
	- inp = NULL;
	- break;
	+ return (NULL);
	}
	- return (inp);
	+
	+ return (intotcpcb(inp));
	}

	static inline bool
	@@ -1335,7 +1326,6 @@
	static int
	tcp_lro_flush_tcphpts(struct lro_ctrl lc, struct lro_entry le)
	{
	- struct inpcb *inp;
	struct tcpcb *tp;
	struct mbuf *pp, cmp, *mv_to;
	struct ifnet *lagg_ifp;
	@@ -1364,31 +1354,28 @@
	IN6_IS_ADDR_UNSPECIFIED(&le->inner.data.s_addr.v6)))
	return (TCP_LRO_CANNOT);
	#endif
	- /* Lookup inp, if any. */
	- inp = tcp_lro_lookup(lc->ifp,
	+ /* Lookup inp, if any. Returns locked TCP inpcb. */
	+ tp = tcp_lro_lookup(lc->ifp,
	(le->inner.data.lro_type == LRO_TYPE_NONE) ? &le->outer : &le->inner);
	- if (inp == NULL)
	+ if (tp == NULL)
	return (TCP_LRO_CANNOT);

	counter_u64_add(tcp_inp_lro_locks_taken, 1);

	- /* Get TCP control structure. */
	- tp = intotcpcb(inp);
	-
	/* Check if the inp is dead, Jim. */
	if (tp->t_state == TCPS_TIME_WAIT) {
	- INP_WUNLOCK(inp);
	+ INP_WUNLOCK(tptoinpcb(tp));
	return (TCP_LRO_CANNOT);
	}
	if (tp->t_lro_cpu == HPTS_CPU_NONE && lc->lro_cpu_is_set == 1)
	tp->t_lro_cpu = lc->lro_last_cpu;
	/* Check if the transport doesn't support the needed optimizations. */
	- if ((inp->inp_flags2 & (INP_SUPPORTS_MBUFQ \| INP_MBUF_ACKCMP)) == 0) {
	- INP_WUNLOCK(inp);
	+ if ((tp->t_flags2 & (TF2_SUPPORTS_MBUFQ \| TF2_MBUF_ACKCMP)) == 0) {
	+ INP_WUNLOCK(tptoinpcb(tp));
	return (TCP_LRO_CANNOT);
	}

	- if (inp->inp_flags2 & INP_MBUF_QUEUE_READY)
	+ if (tp->t_flags2 & TF2_MBUF_QUEUE_READY)
	should_wake = false;
	else
	should_wake = true;
	@@ -1411,7 +1398,7 @@
	cmp = NULL;
	for (pp = &le->m_head; *pp != NULL; ) {
	mv_to = NULL;
	- if (do_bpf_strip_and_compress(inp, lc, le, pp,
	+ if (do_bpf_strip_and_compress(tp, lc, le, pp,
	&cmp, &mv_to, &should_wake, bpf_req,
	lagg_bpf_req, lagg_ifp, can_append_old_cmp) == false) {
	/* Advance to next mbuf. */
	@@ -1444,17 +1431,18 @@
	/* Check if any data mbufs left. */
	if (le->m_head != NULL) {
	counter_u64_add(tcp_inp_lro_direct_queue, 1);
	- tcp_lro_log(tp, lc, le, NULL, 22, 1, inp->inp_flags2, 0, 1);
	+ tcp_lro_log(tp, lc, le, NULL, 22, 1, tp->t_flags2, 0, 1);
	tcp_queue_pkts(tp, le);
	}
	if (should_wake) {
	/* Wakeup */
	counter_u64_add(tcp_inp_lro_wokeup_queue, 1);
	if ((*tp->t_fb->tfb_do_queued_segments)(tp, 0))
	- inp = NULL;
	+ /* TCP cb gone and unlocked. */
	+ return (0);
	}
	- if (inp != NULL)
	- INP_WUNLOCK(inp);
	+ INP_WUNLOCK(tptoinpcb(tp));
	+
	return (0); /* Success. */
	}
	#endif
	@@ -1674,7 +1662,7 @@
	* and strip all, but the IPv4/IPv6 header.
	*/
	static bool
	-do_bpf_strip_and_compress(struct inpcb inp, struct lro_ctrl lc,
	+do_bpf_strip_and_compress(struct tcpcb tp, struct lro_ctrl lc,
	struct lro_entry le, struct mbuf pp, struct mbuf cmp, struct mbuf *mv_to,
	bool should_wake, bool bpf_req, bool lagg_bpf_req, struct ifnet lagg_ifp, bool can_append_old_cmp)
	{
	@@ -1751,7 +1739,7 @@

	/* Now lets look at the should wake states */
	if ((other_opts == true) &&
	- ((inp->inp_flags2 & INP_DONT_SACK_QUEUE) == 0)) {
	+ ((tp->t_flags2 & TF2_DONT_SACK_QUEUE) == 0)) {
	/*
	* If there are other options (SACK?) and the
	* tcp endpoint has not expressly told us it does
	@@ -1760,13 +1748,13 @@
	*should_wake = true;
	} else if (*should_wake == false) {
	/* Wakeup override check if we are false here */
	- *should_wake = tcp_lro_check_wake_status(inp);
	+ *should_wake = tcp_lro_check_wake_status(tp);
	}
	/* Is the ack compressable? */
	if (can_compress == false)
	goto done;
	/* Does the TCP endpoint support ACK compression? */
	- if ((inp->inp_flags2 & INP_MBUF_ACKCMP) == 0)
	+ if ((tp->t_flags2 & TF2_MBUF_ACKCMP) == 0)
	goto done;

	/* Lets get the TOS/traffic class field */
	@@ -1785,7 +1773,8 @@
	/* Now lets get space if we don't have some already */
	if (*cmp == NULL) {
	new_one:
	- nm = tcp_lro_get_last_if_ackcmp(lc, le, inp, &n_mbuf, can_append_old_cmp);
	+ nm = tcp_lro_get_last_if_ackcmp(lc, le, tp, &n_mbuf,
	+ can_append_old_cmp);
	if (__predict_false(nm == NULL))
	goto done;
	*cmp = nm;
	@@ -1812,7 +1801,7 @@
	nm = *cmp;
	if (M_TRAILINGSPACE(nm) < sizeof(struct tcp_ackent)) {
	/* We ran out of space */
	- inp->inp_flags2 \|= INP_MBUF_L_ACKS;
	+ tp->t_flags2 \|= TF2_MBUF_L_ACKS;
	goto new_one;
	}
	}
	diff --git a/sys/netinet/tcp_stacks/bbr.c b/sys/netinet/tcp_stacks/bbr.c
	--- a/sys/netinet/tcp_stacks/bbr.c
	+++ b/sys/netinet/tcp_stacks/bbr.c
	@@ -891,7 +891,7 @@
	* Tell LRO that it can queue packets while
	* we pace.
	*/
	- bbr->rc_inp->inp_flags2 \|= INP_MBUF_QUEUE_READY;
	+ bbr->rc_tp->t_flags2 \|= TF2_MBUF_QUEUE_READY;
	if ((bbr->r_ctl.rc_hpts_flags & PACE_TMR_RACK) &&
	(bbr->rc_cwnd_limited == 0)) {
	/*
	@@ -899,9 +899,9 @@
	* are running a rack timer we put on
	* the do not disturbe even for sack.
	*/
	- inp->inp_flags2 \|= INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 \|= TF2_DONT_SACK_QUEUE;
	} else
	- inp->inp_flags2 &= ~INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 &= ~TF2_DONT_SACK_QUEUE;
	bbr->rc_pacer_started = cts;

	(void)tcp_hpts_insert_diag(tp, HPTS_USEC_TO_SLOTS(slot),
	@@ -932,12 +932,12 @@
	* if a sack arrives as long as we are
	* not cwnd limited.
	*/
	- bbr->rc_inp->inp_flags2 \|= INP_MBUF_QUEUE_READY;
	- inp->inp_flags2 \|= INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 \|= (TF2_MBUF_QUEUE_READY \|
	+ TF2_DONT_SACK_QUEUE);
	} else {
	/* All other timers wake us up */
	- bbr->rc_inp->inp_flags2 &= ~INP_MBUF_QUEUE_READY;
	- inp->inp_flags2 &= ~INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 &= ~(TF2_MBUF_QUEUE_READY \|
	+ TF2_DONT_SACK_QUEUE);
	}
	bbr->bbr_timer_src = frm;
	bbr_log_to_start(bbr, cts, hpts_timeout, slot, 0);
	@@ -2498,7 +2498,7 @@
	log.u_bbr.flex4 = slot;
	log.u_bbr.flex5 = bbr->rc_tp->t_hpts_slot;
	log.u_bbr.flex6 = TICKS_2_USEC(bbr->rc_tp->t_rxtcur);
	- log.u_bbr.pkts_out = bbr->rc_inp->inp_flags2;
	+ log.u_bbr.pkts_out = bbr->rc_tp->t_flags2;
	log.u_bbr.flex8 = which;
	TCP_LOG_EVENTP(bbr->rc_tp, NULL,
	&bbr->rc_inp->inp_socket->so_rcv,
	@@ -9940,13 +9940,13 @@
	}
	bbr = (struct tcp_bbr )ptr;
	bbr->rtt_valid = 0;
	- inp->inp_flags2 \|= INP_CANNOT_DO_ECN;
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_CANNOT_DO_ECN;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	/* Take off any undesired flags */
	- inp->inp_flags2 &= ~INP_MBUF_QUEUE_READY;
	- inp->inp_flags2 &= ~INP_DONT_SACK_QUEUE;
	- inp->inp_flags2 &= ~INP_MBUF_ACKCMP;
	- inp->inp_flags2 &= ~INP_MBUF_L_ACKS;
	+ tp->t_flags2 &= ~TF2_MBUF_QUEUE_READY;
	+ tp->t_flags2 &= ~TF2_DONT_SACK_QUEUE;
	+ tp->t_flags2 &= ~TF2_MBUF_ACKCMP;
	+ tp->t_flags2 &= ~TF2_MBUF_L_ACKS;

	TAILQ_INIT(&bbr->r_ctl.rc_map);
	TAILQ_INIT(&bbr->r_ctl.rc_free);
	@@ -11583,7 +11583,7 @@
	}
	/* Clear the flag, it may have been cleared by output but we may not have */
	if ((nxt_pkt == 0) && (tp->t_flags2 & TF2_HPTS_CALLS))
	- tp->t_hpts_calls &= ~TF2_HPTS_CALLS;
	+ tp->t_flags2 &= ~TF2_HPTS_CALLS;
	/* Do we have a new state */
	if (bbr->r_state != tp->t_state)
	bbr_set_state(tp, bbr, tiwin);
	@@ -12046,7 +12046,7 @@
	return (retval < 0 ? retval : 0);
	}
	}
	- bbr->rc_inp->inp_flags2 &= ~INP_MBUF_QUEUE_READY;
	+ bbr->rc_tp->t_flags2 &= ~TF2_MBUF_QUEUE_READY;
	if (hpts_calling &&
	(bbr->r_ctl.rc_hpts_flags & PACE_PKT_OUTPUT)) {
	bbr->r_ctl.rc_last_delay_val = 0;
	@@ -14078,15 +14078,14 @@
	* pacer (if our flags are up) if so we are good, if
	* not we need to get back into the pacer.
	*/
	- struct inpcb *inp = tptoinpcb(tp);
	struct timeval tv;
	uint32_t cts;
	uint32_t toval;
	struct tcp_bbr *bbr;
	struct hpts_diag diag;

	- inp->inp_flags2 \|= INP_CANNOT_DO_ECN;
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_CANNOT_DO_ECN;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	tcp_change_time_units(tp, TCP_TMR_GRANULARITY_TICKS);
	if (tp->t_in_hpts > IHPTS_NONE) {
	return;
	diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
	--- a/sys/netinet/tcp_stacks/rack.c
	+++ b/sys/netinet/tcp_stacks/rack.c
	@@ -6811,12 +6811,12 @@
	* are not on then these flags won't have any effect since it
	* won't go through the queuing LRO path).
	*
	- * INP_MBUF_QUEUE_READY - This flags says that I am busy
	+ * TF2_MBUF_QUEUE_READY - This flags says that I am busy
	* pacing output, so don't disturb. But
	* it also means LRO can wake me if there
	* is a SACK arrival.
	*
	- * INP_DONT_SACK_QUEUE - This flag is used in conjunction
	+ * TF2_DONT_SACK_QUEUE - This flag is used in conjunction
	* with the above flag (QUEUE_READY) and
	* when present it says don't even wake me
	* if a SACK arrives.
	@@ -6831,7 +6831,7 @@
	* Other cases should usually have none of the flags set
	* so LRO can call into us.
	*/
	- inp->inp_flags2 &= ~(INP_DONT_SACK_QUEUE\|INP_MBUF_QUEUE_READY);
	+ tp->t_flags2 &= ~(TF2_DONT_SACK_QUEUE\|TF2_MBUF_QUEUE_READY);
	if (slot) {
	rack->r_ctl.rc_hpts_flags \|= PACE_PKT_OUTPUT;
	rack->r_ctl.rc_last_output_to = us_cts + slot;
	@@ -6843,7 +6843,7 @@
	* will be effective if mbuf queueing is on or
	* compressed acks are being processed.
	*/
	- inp->inp_flags2 \|= INP_MBUF_QUEUE_READY;
	+ tp->t_flags2 \|= TF2_MBUF_QUEUE_READY;
	/*
	* But wait if we have a Rack timer running
	* even a SACK should not disturb us (with
	@@ -6851,7 +6851,7 @@
	*/
	if (rack->r_ctl.rc_hpts_flags & PACE_TMR_RACK) {
	if (rack->r_rr_config != 3)
	- inp->inp_flags2 \|= INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 \|= TF2_DONT_SACK_QUEUE;
	else if (rack->rc_pace_dnd) {
	if (IN_RECOVERY(tp->t_flags)) {
	/*
	@@ -6862,13 +6862,14 @@
	* and let all sacks wake us up.
	*
	*/
	- inp->inp_flags2 \|= INP_DONT_SACK_QUEUE;
	+ tp->t_flags2 \|= TF2_DONT_SACK_QUEUE;
	}
	}
	}
	/* For sack attackers we want to ignore sack */
	if (rack->sack_attack_disable == 1) {
	- inp->inp_flags2 \|= (INP_DONT_SACK_QUEUE\|INP_MBUF_QUEUE_READY);
	+ tp->t_flags2 \|= (TF2_DONT_SACK_QUEUE \|
	+ TF2_MBUF_QUEUE_READY);
	} else if (rack->rc_ack_can_sendout_data) {
	/*
	* Ahh but wait, this is that special case
	@@ -6876,7 +6877,8 @@
	* backout the changes (used for non-paced
	* burst limiting).
	*/
	- inp->inp_flags2 &= ~(INP_DONT_SACK_QUEUE\|INP_MBUF_QUEUE_READY);
	+ tp->t_flags2 &= ~(TF2_DONT_SACK_QUEUE \|
	+ TF2_MBUF_QUEUE_READY);
	}
	if ((rack->use_rack_rr) &&
	(rack->r_rr_config < 2) &&
	@@ -6897,7 +6899,7 @@
	}
	} else if (hpts_timeout) {
	/*
	- * With respect to inp_flags2 here, lets let any new acks wake
	+ * With respect to t_flags2(?) here, lets let any new acks wake
	* us up here. Since we are not pacing (no pacing timer), output
	* can happen so we should let it. If its a Rack timer, then any inbound
	* packet probably won't change the sending (we will be blocked)
	@@ -8025,7 +8027,7 @@
	* no-sack wakeup on since we no longer have a PKT_OUTPUT
	* flag in place.
	*/
	- rack->rc_inp->inp_flags2 &= ~INP_DONT_SACK_QUEUE;
	+ rack->rc_tp->t_flags2 &= ~TF2_DONT_SACK_QUEUE;
	ret = -3;
	left = rack->r_ctl.rc_timer_exp - cts;
	tcp_hpts_insert(tp, HPTS_MS_TO_SLOTS(left));
	@@ -14555,9 +14557,8 @@
	* This method gets called if a stack switch was
	* attempted and it failed. We are left
	* but our hpts timers were stopped and we
	- * need to validate time units and inp_flags2.
	+ * need to validate time units and t_flags2.
	*/
	- struct inpcb *inp = tptoinpcb(tp);
	struct tcp_rack *rack;
	struct timeval tv;
	uint32_t cts;
	@@ -14567,11 +14568,11 @@
	rack = (struct tcp_rack *)tp->t_fb_ptr;
	tcp_change_time_units(tp, TCP_TMR_GRANULARITY_USEC);
	if (rack->r_mbuf_queue \|\| rack->rc_always_pace \|\| rack->r_use_cmp_ack)
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	else
	- inp->inp_flags2 &= ~INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 &= ~TF2_SUPPORTS_MBUFQ;
	if (rack->r_use_cmp_ack && TCPS_HAVEESTABLISHED(tp->t_state))
	- rack->rc_inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	+ tp->t_flags2 \|= TF2_MBUF_ACKCMP;
	if (tp->t_in_hpts > IHPTS_NONE) {
	/* Strange */
	return;
	@@ -15078,13 +15079,13 @@
	}
	}
	rack_stop_all_timers(tp, rack);
	- /* Setup all the inp_flags2 */
	+ /* Setup all the t_flags2 */
	if (rack->r_mbuf_queue \|\| rack->rc_always_pace \|\| rack->r_use_cmp_ack)
	- tptoinpcb(tp)->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	else
	- tptoinpcb(tp)->inp_flags2 &= ~INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 &= ~TF2_SUPPORTS_MBUFQ;
	if (rack->r_use_cmp_ack && TCPS_HAVEESTABLISHED(tp->t_state))
	- rack->rc_inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	+ tp->t_flags2 \|= TF2_MBUF_ACKCMP;
	/*
	* Timers in Rack are kept in microseconds so lets
	* convert any initial incoming variables
	@@ -15406,7 +15407,7 @@
	break;
	};
	if (rack->r_use_cmp_ack && TCPS_HAVEESTABLISHED(tp->t_state))
	- rack->rc_inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	+ rack->rc_tp->t_flags2 \|= TF2_MBUF_ACKCMP;

	}

	@@ -16508,7 +16509,7 @@
	* so should process the packets.
	*/
	slot_remaining = rack->r_ctl.rc_last_output_to - us_cts;
	- if (rack->rc_inp->inp_flags2 & INP_DONT_SACK_QUEUE) {
	+ if (rack->rc_tp->t_flags2 & TF2_DONT_SACK_QUEUE) {
	no_output = 1;
	} else {
	/*
	@@ -22399,7 +22400,7 @@
	rack->use_fixed_rate = 0;
	if (rack->gp_ready)
	rack_set_cc_pacing(rack);
	- rack->rc_inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ rack->rc_tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	rack->rack_attempt_hdwr_pace = 0;
	/* rxt settings */
	rack->full_size_rxt = 1;
	@@ -22408,7 +22409,7 @@
	rack->r_use_cmp_ack = 1;
	if (TCPS_HAVEESTABLISHED(rack->rc_tp->t_state) &&
	rack->r_use_cmp_ack)
	- rack->rc_inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	+ rack->rc_tp->t_flags2 \|= TF2_MBUF_ACKCMP;
	/* scwnd=1 */
	rack->rack_enable_scwnd = 1;
	/* dynamic=100 */
	@@ -22525,11 +22526,11 @@
	if (rack_enable_mqueue_for_nonpaced \|\| rack->r_use_cmp_ack) {
	rack->r_mbuf_queue = 1;
	if (TCPS_HAVEESTABLISHED(rack->rc_tp->t_state))
	- rack->rc_inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	- rack->rc_inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ rack->rc_tp->t_flags2 \|= TF2_MBUF_ACKCMP;
	+ rack->rc_tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	} else {
	rack->r_mbuf_queue = 0;
	- rack->rc_inp->inp_flags2 &= ~INP_SUPPORTS_MBUFQ;
	+ rack->rc_tp->t_flags2 &= ~TF2_SUPPORTS_MBUFQ;
	}
	if (rack_enable_shared_cwnd)
	rack->rack_enable_scwnd = 1;
	@@ -22676,7 +22677,6 @@
	struct epoch_tracker et;
	struct sockopt sopt;
	struct cc_newreno_opts opt;
	- struct inpcb *inp = tptoinpcb(tp);
	uint64_t val;
	int error = 0;
	uint16_t ca, ss;
	@@ -22854,16 +22854,16 @@
	break;
	case TCP_USE_CMP_ACKS:
	RACK_OPTS_INC(tcp_use_cmp_acks);
	- if ((optval == 0) && (rack->rc_inp->inp_flags2 & INP_MBUF_ACKCMP)) {
	+ if ((optval == 0) && (tp->t_flags2 & TF2_MBUF_ACKCMP)) {
	/* You can't turn it off once its on! */
	error = EINVAL;
	} else if ((optval == 1) && (rack->r_use_cmp_ack == 0)) {
	rack->r_use_cmp_ack = 1;
	rack->r_mbuf_queue = 1;
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	}
	if (rack->r_use_cmp_ack && TCPS_HAVEESTABLISHED(tp->t_state))
	- inp->inp_flags2 \|= INP_MBUF_ACKCMP;
	+ tp->t_flags2 \|= TF2_MBUF_ACKCMP;
	break;
	case TCP_SHARED_CWND_TIME_LIMIT:
	RACK_OPTS_INC(tcp_lscwnd);
	@@ -22926,9 +22926,9 @@
	else
	rack->r_mbuf_queue = 0;
	if (rack->r_mbuf_queue \|\| rack->rc_always_pace \|\| rack->r_use_cmp_ack)
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	else
	- inp->inp_flags2 &= ~INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 &= ~TF2_SUPPORTS_MBUFQ;
	break;
	case TCP_RACK_NONRXT_CFG_RATE:
	RACK_OPTS_INC(tcp_rack_cfg_rate);
	@@ -23011,9 +23011,9 @@
	}
	}
	if (rack->r_mbuf_queue \|\| rack->rc_always_pace \|\| rack->r_use_cmp_ack)
	- inp->inp_flags2 \|= INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 \|= TF2_SUPPORTS_MBUFQ;
	else
	- inp->inp_flags2 &= ~INP_SUPPORTS_MBUFQ;
	+ tp->t_flags2 &= ~TF2_SUPPORTS_MBUFQ;
	/* A rate may be set irate or other, if so set seg size */
	rack_update_seg(rack);
	break;
	diff --git a/sys/netinet/tcp_stacks/rack_bbr_common.c b/sys/netinet/tcp_stacks/rack_bbr_common.c
	--- a/sys/netinet/tcp_stacks/rack_bbr_common.c
	+++ b/sys/netinet/tcp_stacks/rack_bbr_common.c
	@@ -445,8 +445,8 @@
	* been compressed. We assert the inp has
	* the flag set to enable this!
	*/
	- KASSERT((inp->inp_flags2 & INP_MBUF_ACKCMP),
	- ("tp:%p inp:%p no INP_MBUF_ACKCMP flags?", tp, inp));
	+ KASSERT((tp->t_flags2 & TF2_MBUF_ACKCMP),
	+ ("tp:%p no TF2_MBUF_ACKCMP flags?", tp));
	tlen = 0;
	drop_hdrlen = 0;
	th = NULL;
	diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
	--- a/sys/netinet/tcp_subr.c
	+++ b/sys/netinet/tcp_subr.c
	@@ -1073,7 +1073,7 @@

	/* Make sure we get no interesting mbuf queuing behavior */
	/* All mbuf queue/ack compress flags should be off */
	- tcp_lro_features_off(tptoinpcb(tp));
	+ tcp_lro_features_off(tp);

	/* Cancel the GP measurement in progress */
	tp->t_flags &= ~TF_GPUTINPROG;
	@@ -2270,7 +2270,7 @@
	V_tcp_mssdflt;

	/* All mbuf queue/ack compress flags should be off */
	- tcp_lro_features_off(tptoinpcb(tp));
	+ tcp_lro_features_off(tp);

	callout_init_rw(&tp->t_callout, &inp->inp_lock, CALLOUT_RETURNUNLOCKED);
	for (int i = 0; i < TT_N; i++)
	@@ -4052,7 +4052,7 @@
	* old callout system in the other stacks so
	* those are hopefully safe.
	*/
	- tcp_lro_features_off(tptoinpcb(tp));
	+ tcp_lro_features_off(tp);
	tcp_change_time_units(tp, TCP_TMR_GRANULARITY_TICKS);
	}

	@@ -4236,9 +4236,9 @@
	* the newstack does not support.
	*/

	- if (tptoinpcb(tp)->inp_flags2 & INP_MBUF_L_ACKS)
	+ if (tp->t_flags2 & TF2_MBUF_L_ACKS)
	return;
	- if ((tptoinpcb(tp)->inp_flags2 & INP_SUPPORTS_MBUFQ) == 0 &&
	+ if ((tp->t_flags2 & TF2_SUPPORTS_MBUFQ) == 0 &&
	!STAILQ_EMPTY(&tp->t_inqueue)) {
	/*
	* It is unsafe to process the packets since a
	diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c
	--- a/sys/netinet/tcp_syncache.c
	+++ b/sys/netinet/tcp_syncache.c
	@@ -1724,7 +1724,7 @@
	if (ltflags & TF_NOOPT)
	sc->sc_flags \|= SCF_NOOPT;
	/* ECN Handshake */
	- if (V_tcp_do_ecn && (inp->inp_flags2 & INP_CANNOT_DO_ECN) == 0)
	+ if (V_tcp_do_ecn && (tp->t_flags2 & TF2_CANNOT_DO_ECN) == 0)
	sc->sc_flags \|= tcp_ecn_syncache_add(tcp_get_flags(th), iptos);

	if (V_tcp_syncookies)
	diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h
	--- a/sys/netinet/tcp_var.h
	+++ b/sys/netinet/tcp_var.h
	@@ -677,16 +677,6 @@
	return (rv);
	}

	-static inline void
	-tcp_lro_features_off(struct inpcb *inp)
	-{
	- inp->inp_flags2 &= ~(INP_SUPPORTS_MBUFQ\|
	- INP_MBUF_QUEUE_READY\|
	- INP_DONT_SACK_QUEUE\|
	- INP_MBUF_ACKCMP\|
	- INP_MBUF_L_ACKS);
	-}
	-
	/*
	* tcp_output_unlock()
	* Always returns unlocked, handles drop request from advanced stacks.
	@@ -853,6 +843,12 @@
	#define TF2_ECN_USE_ECT1 0x00000800 /* Use ECT(1) marking on session */
	#define TF2_TCP_ACCOUNTING 0x00010000 /* Do TCP accounting */
	#define TF2_HPTS_CALLS 0x00020000 /* tcp_output() called via HPTS */
	+#define TF2_MBUF_L_ACKS 0x00040000 /* large mbufs for ack compression */
	+#define TF2_MBUF_ACKCMP 0x00080000 /* mbuf ack compression ok */
	+#define TF2_SUPPORTS_MBUFQ 0x00100000 /* Supports the mbuf queue method */
	+#define TF2_MBUF_QUEUE_READY 0x00200000 /* Inputs can be queued */
	+#define TF2_DONT_SACK_QUEUE 0x00400000 /* Don't wake on sack */
	+#define TF2_CANNOT_DO_ECN 0x00800000 /* The stack does not do ECN */

	/*
	* Structure to hold TCP options that are only used during segment
	@@ -1543,6 +1539,15 @@
	int tcp_do_ack_accounting(struct tcpcb tp, struct tcphdr th, struct tcpopt *to, uint32_t tiwin, int mss);
	#endif

	+static inline void
	+tcp_lro_features_off(struct tcpcb *tp)
	+{
	+ tp->t_flags2 &= ~(TF2_SUPPORTS_MBUFQ\|
	+ TF2_MBUF_QUEUE_READY\|
	+ TF2_DONT_SACK_QUEUE\|
	+ TF2_MBUF_ACKCMP\|
	+ TF2_MBUF_L_ACKS);
	+}

	static inline void
	tcp_fields_to_host(struct tcphdr *th)

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