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This catches rack up in the recent changes to ECN and

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also commonizes the functions that both the freebsd and
rack stack uses.

Sponsored by:Netflix Inc
Differential Revision:	https://reviews.freebsd.org/D23052
This commit is contained in:
Randall Stewart 2020-01-06 15:29:14 +00:00
parent 759a578b0c
commit 4ad2473790
3 changed files with 6 additions and 1 deletions
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2
sys/netinet/tcp_input.c
View File

@ -514,7 +514,7 @@ cc_post_recovery(struct tcpcb *tp, struct tcphdr *th)
(tlen <= tp->t_maxseg) && \
(V_tcp_delack_enabled || (tp->t_flags & TF_NEEDSYN)))
static void inline
void inline
cc_ecnpkt_handler(struct tcpcb *tp, struct tcphdr *th, uint8_t iptos)
{
INP_WLOCK_ASSERT(tp->t_inpcb);

4
sys/netinet/tcp_stacks/rack.c
View File

@ -7715,6 +7715,10 @@ rack_do_segment_nounlock(struct mbuf *m, struct tcphdr *th, struct socket *so,
TCPSTAT_INC(tcps_ecn_ect1);
break;
}
/* Process a packet differently from RFC3168. */
cc_ecnpkt_handler(tp, th, iptos);
/* Congestion experienced. */
if (thflags & TH_ECE) {
rack_cong_signal(tp, th, CC_ECN);

1
sys/netinet/tcp_var.h
View File

@ -891,6 +891,7 @@ void cc_ack_received(struct tcpcb *tp, struct tcphdr *th,
uint16_t nsegs, uint16_t type);
void cc_conn_init(struct tcpcb *tp);
void cc_post_recovery(struct tcpcb *tp, struct tcphdr *th);
void cc_ecnpkt_handler(struct tcpcb *tp, struct tcphdr *th, uint8_t iptos);
void cc_cong_signal(struct tcpcb *tp, struct tcphdr *th, uint32_t type);
#ifdef TCP_HHOOK
void hhook_run_tcp_est_in(struct tcpcb *tp,