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D30895.id91342.diff
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D30895.id91342.diff
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Index: sys/netinet/tcp_output.c
===================================================================
--- sys/netinet/tcp_output.c
+++ sys/netinet/tcp_output.c
@@ -1560,7 +1560,7 @@
out:
if (error == 0)
- tcp_account_for_send(tp, len, (tp->snd_nxt != tp->snd_max), 0);
+ tcp_account_for_send(tp, len, (tp->snd_nxt != tp->snd_max), 0, hw_tls);
/*
* In transmit state, time the transmission and arrange for
* the retransmit. In persist state, just set snd_max.
Index: sys/netinet/tcp_stacks/bbr.c
===================================================================
--- sys/netinet/tcp_stacks/bbr.c
+++ sys/netinet/tcp_stacks/bbr.c
@@ -13750,7 +13750,7 @@
* retransmit. In persist state, just set snd_max.
*/
if (error == 0) {
- tcp_account_for_send(tp, len, (rsm != NULL), doing_tlp);
+ tcp_account_for_send(tp, len, (rsm != NULL), doing_tlp, hw_tls);
if (TCPS_HAVEESTABLISHED(tp->t_state) &&
(tp->t_flags & TF_SACK_PERMIT) &&
tp->rcv_numsacks > 0)
Index: sys/netinet/tcp_stacks/rack.c
===================================================================
--- sys/netinet/tcp_stacks/rack.c
+++ sys/netinet/tcp_stacks/rack.c
@@ -32,6 +32,7 @@
#include "opt_ipsec.h"
#include "opt_tcpdebug.h"
#include "opt_ratelimit.h"
+#include "opt_kern_tls.h"
#include <sys/param.h>
#include <sys/arb.h>
#include <sys/module.h>
@@ -483,7 +484,7 @@
static void
rack_log_output(struct tcpcb *tp, struct tcpopt *to, int32_t len,
uint32_t seq_out, uint8_t th_flags, int32_t err, uint64_t ts,
- struct rack_sendmap *hintrsm, uint16_t add_flags, struct mbuf *s_mb, uint32_t s_moff);
+ struct rack_sendmap *hintrsm, uint16_t add_flags, struct mbuf *s_mb, uint32_t s_moff, int hw_tls);
static void
rack_log_sack_passed(struct tcpcb *tp, struct tcp_rack *rack,
@@ -6061,7 +6062,8 @@
/* Push bit must go to the right edge as well */
if (rsm->r_flags & RACK_HAD_PUSH)
rsm->r_flags &= ~RACK_HAD_PUSH;
-
+ /* Clone over the state of the hw_tls flag */
+ nrsm->r_hw_tls = rsm->r_hw_tls;
/*
* Now we need to find nrsm's new location in the mbuf chain
* we basically calculate a new offset, which is soff +
@@ -7191,7 +7193,7 @@
static void
rack_log_output(struct tcpcb *tp, struct tcpopt *to, int32_t len,
uint32_t seq_out, uint8_t th_flags, int32_t err, uint64_t cts,
- struct rack_sendmap *hintrsm, uint16_t add_flag, struct mbuf *s_mb, uint32_t s_moff)
+ struct rack_sendmap *hintrsm, uint16_t add_flag, struct mbuf *s_mb, uint32_t s_moff, int hw_tls)
{
struct tcp_rack *rack;
struct rack_sendmap *rsm, *nrsm, *insret, fe;
@@ -7295,6 +7297,8 @@
} else {
rsm->r_flags = add_flag;
}
+ if (hw_tls)
+ rsm->r_hw_tls = 1;
rsm->r_tim_lastsent[0] = cts;
rsm->r_rtr_cnt = 1;
rsm->r_rtr_bytes = 0;
@@ -14875,7 +14879,7 @@
static struct mbuf *
rack_fo_base_copym(struct mbuf *the_m, uint32_t the_off, int32_t *plen,
struct rack_fast_send_blk *fsb,
- int32_t seglimit, int32_t segsize)
+ int32_t seglimit, int32_t segsize, int hw_tls)
{
#ifdef KERN_TLS
struct ktls_session *tls, *ntls;
@@ -15059,7 +15063,7 @@
*s_mb = rack->r_ctl.fsb.m;
n = rack_fo_base_copym(m, soff, plen,
&rack->r_ctl.fsb,
- seglimit, segsize);
+ seglimit, segsize, rack->r_ctl.fsb.hw_tls);
return (n);
}
@@ -15243,7 +15247,7 @@
/* Fix up the orig_m_len and possibly the mbuf offset */
rack_adjust_orig_mlen(rsm);
}
- m->m_next = rack_fo_base_copym(rsm->m, rsm->soff, &len, NULL, if_hw_tsomaxsegcount, if_hw_tsomaxsegsize);
+ m->m_next = rack_fo_base_copym(rsm->m, rsm->soff, &len, NULL, if_hw_tsomaxsegcount, if_hw_tsomaxsegsize, rsm->r_hw_tls);
if (len <= segsiz) {
/*
* Must have ran out of mbufs for the copy
@@ -15405,13 +15409,13 @@
goto failed;
}
rack_log_output(tp, &to, len, rsm->r_start, flags, error, rack_to_usec_ts(tv),
- rsm, RACK_SENT_FP, rsm->m, rsm->soff);
+ rsm, RACK_SENT_FP, rsm->m, rsm->soff, rsm->r_hw_tls);
if (doing_tlp && (rack->fast_rsm_hack == 0)) {
rack->rc_tlp_in_progress = 1;
rack->r_ctl.rc_tlp_cnt_out++;
}
if (error == 0)
- tcp_account_for_send(tp, len, 1, doing_tlp);
+ tcp_account_for_send(tp, len, 1, doing_tlp, rsm->r_hw_tls);
tp->t_flags &= ~(TF_ACKNOW | TF_DELACK);
rack->forced_ack = 0; /* If we send something zap the FA flag */
if (IN_FASTRECOVERY(tp->t_flags) && rsm)
@@ -15688,7 +15692,8 @@
goto failed;
/* s_mb and s_soff are saved for rack_log_output */
- m->m_next = rack_fo_m_copym(rack, &len, if_hw_tsomaxsegcount, if_hw_tsomaxsegsize, &s_mb, &s_soff);
+ m->m_next = rack_fo_m_copym(rack, &len, if_hw_tsomaxsegcount, if_hw_tsomaxsegsize,
+ &s_mb, &s_soff);
if (len <= segsiz) {
/*
* Must have ran out of mbufs for the copy
@@ -15883,7 +15888,7 @@
goto failed;
}
rack_log_output(tp, &to, len, tp->snd_max, flags, error, rack_to_usec_ts(tv),
- NULL, add_flag, s_mb, s_soff);
+ NULL, add_flag, s_mb, s_soff, rack->r_ctl.fsb.hw_tls);
m = NULL;
if (tp->snd_una == tp->snd_max) {
rack->r_ctl.rc_tlp_rxt_last_time = cts;
@@ -15891,7 +15896,7 @@
tp->t_acktime = ticks;
}
if (error == 0)
- tcp_account_for_send(tp, len, 0, 0);
+ tcp_account_for_send(tp, len, 0, 0, rack->r_ctl.fsb.hw_tls);
rack->forced_ack = 0; /* If we send something zap the FA flag */
tot_len += len;
@@ -17030,6 +17035,10 @@
rack->r_ctl.fsb.o_m_len = rack->r_ctl.fsb.m->m_len;
rack->r_ctl.fsb.tcp_flags = flags;
rack->r_ctl.fsb.left_to_send = orig_len - len;
+ if (hw_tls)
+ rack->r_ctl.fsb.hw_tls = 1;
+ else
+ rack->r_ctl.fsb.hw_tls = 0;
KASSERT((rack->r_ctl.fsb.left_to_send <= (sbavail(sb) - (tp->snd_max - tp->snd_una))),
("rack:%p left_to_send:%u sbavail:%u out:%u",
rack, rack->r_ctl.fsb.left_to_send, sbavail(sb),
@@ -18118,7 +18127,7 @@
* retransmit. In persist state, just set snd_max.
*/
if (error == 0) {
- tcp_account_for_send(tp, len, (rsm != NULL), doing_tlp);
+ tcp_account_for_send(tp, len, (rsm != NULL), doing_tlp, hw_tls);
rack->forced_ack = 0; /* If we send something zap the FA flag */
if (rsm && (doing_tlp == 0)) {
/* Set we retransmitted */
@@ -18166,7 +18175,7 @@
}
rack_log_output(tp, &to, len, rack_seq, (uint8_t) flags, error,
rack_to_usec_ts(&tv),
- rsm, add_flag, s_mb, s_moff);
+ rsm, add_flag, s_mb, s_moff, hw_tls);
if ((error == 0) &&
@@ -18489,6 +18498,10 @@
rack->r_ctl.fsb.o_m_len = rack->r_ctl.fsb.m->m_len;
rack->r_ctl.fsb.tcp_flags = flags;
rack->r_ctl.fsb.left_to_send = orig_len - len;
+ if (hw_tls)
+ rack->r_ctl.fsb.hw_tls = 1;
+ else
+ rack->r_ctl.fsb.hw_tls = 0;
KASSERT((rack->r_ctl.fsb.left_to_send <= (sbavail(sb) - (tp->snd_max - tp->snd_una))),
("rack:%p left_to_send:%u sbavail:%u out:%u",
rack, rack->r_ctl.fsb.left_to_send, sbavail(sb),
@@ -18535,6 +18548,10 @@
rack->r_ctl.fsb.o_m_len = rack->r_ctl.fsb.m->m_len;
rack->r_ctl.fsb.tcp_flags = flags;
rack->r_ctl.fsb.left_to_send = orig_len - len;
+ if (hw_tls)
+ rack->r_ctl.fsb.hw_tls = 1;
+ else
+ rack->r_ctl.fsb.hw_tls = 0;
KASSERT((rack->r_ctl.fsb.left_to_send <= (sbavail(sb) - (tp->snd_max - tp->snd_una))),
("rack:%p left_to_send:%u sbavail:%u out:%u",
rack, rack->r_ctl.fsb.left_to_send, sbavail(sb),
@@ -19458,6 +19475,29 @@
}
}
+static void
+rack_hw_tls_change(struct tcpcb *tp, int chg)
+{
+ /*
+ * HW tls state has changed.. fix all
+ * rsm's in flight.
+ */
+ struct tcp_rack *rack;
+ struct rack_sendmap *rsm;
+
+ rack = (struct tcp_rack *)tp->t_fb_ptr;
+ RB_FOREACH(rsm, rack_rb_tree_head, &rack->r_ctl.rc_mtree) {
+ if (chg)
+ rsm->r_hw_tls = 1;
+ else
+ rsm->r_hw_tls = 0;
+ }
+ if (chg)
+ rack->r_ctl.fsb.hw_tls = 1;
+ else
+ rack->r_ctl.fsb.hw_tls = 0;
+}
+
static int
rack_pru_options(struct tcpcb *tp, int flags)
{
@@ -19483,7 +19523,7 @@
.tfb_tcp_handoff_ok = rack_handoff_ok,
.tfb_tcp_mtu_chg = rack_mtu_change,
.tfb_pru_options = rack_pru_options,
-
+ .tfb_hwtls_change = rack_hw_tls_change,
};
/*
Index: sys/netinet/tcp_stacks/tcp_rack.h
===================================================================
--- sys/netinet/tcp_stacks/tcp_rack.h
+++ sys/netinet/tcp_stacks/tcp_rack.h
@@ -68,7 +68,8 @@
uint8_t r_just_ret : 1, /* After sending, the next pkt was just returned, i.e. limited */
r_one_out_nr : 1, /* Special case 1 outstanding and not in recovery */
r_no_rtt_allowed : 1, /* No rtt measurement allowed */
- r_avail : 5;
+ r_hw_tls : 1,
+ r_avail : 4;
uint64_t r_tim_lastsent[RACK_NUM_OF_RETRANS];
uint64_t r_ack_arrival; /* This is the time of ack-arrival (if SACK'd) */
RB_ENTRY(rack_sendmap) r_next; /* RB Tree next */
@@ -330,7 +331,8 @@
struct mbuf *m;
uint32_t o_m_len;
uint32_t rfo_apply_push : 1,
- unused : 31;
+ hw_tls : 1,
+ unused : 30;
};
struct rack_control {
Index: sys/netinet/tcp_var.h
===================================================================
--- sys/netinet/tcp_var.h
+++ sys/netinet/tcp_var.h
@@ -367,6 +367,7 @@
int (*tfb_tcp_handoff_ok)(struct tcpcb *);
void (*tfb_tcp_mtu_chg)(struct tcpcb *);
int (*tfb_pru_options)(struct tcpcb *, int);
+ void (*tfb_hwtls_change)(struct tcpcb *, int);
volatile uint32_t tfb_refcnt;
uint32_t tfb_flags;
uint8_t tfb_id;
@@ -1137,7 +1138,8 @@
}
static inline void
-tcp_account_for_send(struct tcpcb *tp, uint32_t len, uint8_t is_rxt, uint8_t is_tlp)
+tcp_account_for_send(struct tcpcb *tp, uint32_t len, uint8_t is_rxt,
+ uint8_t is_tlp, int hw_tls __unused)
{
if (is_tlp) {
tp->t_sndtlppack++;
@@ -1148,9 +1150,7 @@
tp->t_snd_rxt_bytes += len;
else
tp->t_sndbytes += len;
-
}
-
#endif /* _KERNEL */
#endif /* _NETINET_TCP_VAR_H_ */
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D30895.id91342.diff (9 KB)
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D30895: tcp: Preparation for allowing hardware TLS to be able to kick a tcp connection that is retransmitting too much out of hardware and back to software.
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