git: fa3746be4203 - main - tcp: fix two bugs in new reno
Michael Tuexen
tuexen at FreeBSD.org
Fri Jun 11 13:40:42 UTC 2021
The branch main has been updated by tuexen:
URL: https://cgit.FreeBSD.org/src/commit/?id=fa3746be4203fc9a3414afb21d964eec8bad74f8
commit fa3746be4203fc9a3414afb21d964eec8bad74f8
Author: Michael Tuexen <tuexen at FreeBSD.org>
AuthorDate: 2021-06-11 13:37:39 +0000
Commit: Michael Tuexen <tuexen at FreeBSD.org>
CommitDate: 2021-06-11 13:40:34 +0000
tcp: fix two bugs in new reno
* Completely initialise the CC module specific data
* Use beta_ecn in case of an ECN event whenever ABE is enabled
or it is requested by the stack.
Reviewed by: rscheff, rrs
MFC after: 3 days
Sponsored by: Netflix, Inc.
---
sys/netinet/cc/cc_newreno.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sys/netinet/cc/cc_newreno.c b/sys/netinet/cc/cc_newreno.c
index 8f8ca953169e..8f939ad70695 100644
--- a/sys/netinet/cc/cc_newreno.c
+++ b/sys/netinet/cc/cc_newreno.c
@@ -111,6 +111,7 @@ newreno_malloc(struct cc_var *ccv)
/* NB: nreno is not zeroed, so initialise all fields. */
nreno->beta = V_newreno_beta;
nreno->beta_ecn = V_newreno_beta_ecn;
+ nreno->newreno_flags = 0;
ccv->cc_data = nreno;
}
@@ -254,8 +255,9 @@ newreno_cong_signal(struct cc_var *ccv, uint32_t type)
* has set a flag in our newreno_flags (due to pacing) telling
* us to use the lower valued back-off.
*/
- if (V_cc_do_abe ||
- (nreno && (nreno->newreno_flags & CC_NEWRENO_BETA_ECN) && (type == CC_ECN)))
+ if ((type == CC_ECN) &&
+ (V_cc_do_abe ||
+ ((nreno != NULL) && (nreno->newreno_flags & CC_NEWRENO_BETA_ECN))))
factor = beta_ecn;
else
factor = beta;
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