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do not update cwnd when send dataack

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(cherry picked from commit a3f13126c69279a93f6dd60385158683458c59f2)
This commit is contained in:
kircher 2022-12-21 17:38:46 +08:00 committed by openeuler-sync-bot
parent f107395b73
commit 99cde8fa34
2 changed files with 15 additions and 9 deletions
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19
0045-add-dataack-when-recv-too-many-acks-with-data.patch
View File

@ -1,16 +1,16 @@
From 710841b579e1be0f6428cb71e4ebb4c90694d9b3 Mon Sep 17 00:00:00 2001 From fe99dca0fa972f3c934a91e587380f140e093306 Mon Sep 17 00:00:00 2001
From: kircher <majun65@huawei.com> From: kircher <majun65@huawei.com>
Date: Tue, 20 Dec 2022 19:06:35 +0800 Date: Wed, 21 Dec 2022 17:34:17 +0800
Subject: [PATCH] add dataack when recv too many acks with data Subject: [PATCH] add dataack when recv too many acks with data
--- ---
src/core/tcp_in.c | 19 +++++++++++++++++++ src/core/tcp_in.c | 22 ++++++++++++++++++++++
src/include/lwip/tcp.h | 1 + src/include/lwip/tcp.h | 1 +
src/include/lwipopts.h | 2 ++ src/include/lwipopts.h | 2 ++
3 files changed, 22 insertions(+) 3 files changed, 25 insertions(+)
diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
index a5aebb4..88b6428 100644 index a5aebb4..9e84889 100644
--- a/src/core/tcp_in.c --- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c +++ b/src/core/tcp_in.c
@@ -1259,6 +1259,7 @@ tcp_receive(struct tcp_pcb *pcb) @@ -1259,6 +1259,7 @@ tcp_receive(struct tcp_pcb *pcb)
@ -21,7 +21,7 @@ index a5aebb4..88b6428 100644
LWIP_ASSERT("tcp_receive: invalid pcb", pcb != NULL); LWIP_ASSERT("tcp_receive: invalid pcb", pcb != NULL);
LWIP_ASSERT("tcp_receive: wrong state", pcb->state >= ESTABLISHED); LWIP_ASSERT("tcp_receive: wrong state", pcb->state >= ESTABLISHED);
@@ -1336,11 +1337,28 @@ tcp_receive(struct tcp_pcb *pcb) @@ -1336,11 +1337,31 @@ tcp_receive(struct tcp_pcb *pcb)
} }
} }
} }
@ -33,7 +33,10 @@ index a5aebb4..88b6428 100644
+ found_dataack = 1; + found_dataack = 1;
+ ++pcb->dataacks; + ++pcb->dataacks;
+ if (pcb->dataacks > MAX_DATA_ACK_NUM) { + if (pcb->dataacks > MAX_DATA_ACK_NUM) {
+ tcp_rexmit_fast(pcb); + if (tcp_rexmit(pcb) == ERR_OK) {
+ pcb->rtime = 0;
+ pcb->dataacks = 0;
+ }
+ } + }
+ } + }
+ } + }
@ -50,7 +53,7 @@ index a5aebb4..88b6428 100644
} else if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) { } else if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) {
/* We come here when the ACK acknowledges new data. */ /* We come here when the ACK acknowledges new data. */
tcpwnd_size_t acked; tcpwnd_size_t acked;
@@ -1366,6 +1384,7 @@ tcp_receive(struct tcp_pcb *pcb) @@ -1366,6 +1387,7 @@ tcp_receive(struct tcp_pcb *pcb)
/* Reset the fast retransmit variables. */ /* Reset the fast retransmit variables. */
pcb->dupacks = 0; pcb->dupacks = 0;
pcb->lastack = ackno; pcb->lastack = ackno;

5
lwip.spec
View File

@ -4,7 +4,7 @@
Summary: lwip is a small independent implementation of the TCP/IP protocol suite Summary: lwip is a small independent implementation of the TCP/IP protocol suite
Name: lwip Name: lwip
Version: 2.1.2 Version: 2.1.2
Release: 23 Release: 24
License: BSD License: BSD
URL: http://savannah.nongnu.org/projects/lwip/ URL: http://savannah.nongnu.org/projects/lwip/
Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@ -135,6 +135,9 @@ cd %{_builddir}/%{name}-%{version}/src
%{_libdir}/liblwip.a %{_libdir}/liblwip.a
%changelog %changelog
* Wed Dec 21 2022 kircher<majun65@huawei.com> - 2.1.2-24
- do not update cwnd when send dataack
* Tue Dec 20 2022 kircher<majun65@huawei.com> - 2.1.2-23 * Tue Dec 20 2022 kircher<majun65@huawei.com> - 2.1.2-23
- fix dataack is always lower than 256 - fix dataack is always lower than 256