MINOR: quic: make bbr consider the max window size setting

haproxyFred · haproxyFred · commit a3248a39eb2f · 2024-11-26T08:00:58.000+01:00
Limit the BBR congestion control window size as this is done for all the others
congestion control algorithms with tune.quic.frontend.default-max-window-size
or as first argument passed to "bbr" option for "quic-cc-algo".
diff --git a/src/quic_cc_bbr.c b/src/quic_cc_bbr.c
@@ -559,6 +559,8 @@ static void bbr_set_cwnd(struct bbr *bbr, struct quic_cc_path *p, uint32_t acked
 	p->cwnd = MAX(p->cwnd, bbr_min_pipe_cwnd(p));
 	bbr_bound_cwnd_for_probe_rtt(bbr, p);
 	bbr_bound_cwnd_for_model(bbr, p);
+	/* Limitation by configuration (not in BBR RFC). */
+	p->cwnd = MIN(p->cwnd, p->max_cwnd);
 }
 
 static int bbr_init(struct quic_cc *cc)

Original file line number	Diff line number	Diff line change
`@@ -559,6 +559,8 @@ static void bbr_set_cwnd(struct bbr bbr, struct quic_cc_path p, uint32_t acked`
`559`	`559`	`p->cwnd = MAX(p->cwnd, bbr_min_pipe_cwnd(p));`
`560`	`560`	`bbr_bound_cwnd_for_probe_rtt(bbr, p);`
`561`	`561`	`bbr_bound_cwnd_for_model(bbr, p);`
	`562`	`+ /* Limitation by configuration (not in BBR RFC). */`
	`563`	`+ p->cwnd = MIN(p->cwnd, p->max_cwnd);`
`562`	`564`	`}`
`563`	`565`
`564`	`566`	`static int bbr_init(struct quic_cc *cc)`