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bf962de97c
Changes:
* Fix initial send sequence always zero issue
* Use state machine close to RFC 9293. This should make TCP
transfers more reliable (now we can upload a huge array
of data from the board to external server)
* Improve TCP framework a lot. This should make tcp client
code much more simple.
* rewrite wget with new tcp stack
* rewrite fastboot_tcp with new tcp stack
It's quite hard to fix the initial send sequence (ISS) issue
with the separate patch. A naive attempt to fix an issue
inside the tcp_set_tcp_header() function will break tcp packet
retransmit logic in wget and other clients.
Example:
Wget stores tcp_seq_num value before tcp_set_tcp_header() will
be called and (on failure) retransmit the packet with the stored
tcp_seq_num value. Thus:
* the same ISS must allways be used (current case)
* or tcp clients needs to generate a proper ISS when
required.
A proper ISS fix will require a big redesing comparable with
a this one.
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
14 lines
251 B
C
14 lines
251 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Duncan Hare Copyright 2017
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*/
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/**
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* wget_start() - begin wget
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*/
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void wget_start(void);
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#define DEBUG_WGET 0 /* Set to 1 for debug messages */
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#define WGET_RETRY_COUNT 30
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#define WGET_TIMEOUT 2000UL
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