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Christian Lamparter f3ffac90bc ath79: gmac: add parsers for rxd(v)- and tx(d|en)-delay for AR9344
Some AR9344 boards do very poorly with the default settings and
need custom rxdv-delay, rxd-delay, txd-delay, txen-delay flags
to perform reasonably.

In this case the WD My Net Wi-Fi Range Extender can not even
manage 10Mbps on a 1Gbit link:

root@AR9344:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from client [...]
[  5] local [...] connected to client
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  1.09 MBytes  9.16 Mbits/sec
[  5]   1.00-2.00   sec   895 KBytes  7.33 Mbits/sec
[  5]   2.00-3.00   sec   762 KBytes  6.25 Mbits/sec
[...]
[  5]  10.00-10.03  sec  17.0 KBytes  4.74 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.03  sec  9.00 MBytes  7.52 Mbits/sec

with but with the correct settings in place, it does much better:

root@AR9344:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from client [...]
[  5] local [...] connected to client
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  23.1 MBytes   193 Mbits/sec
[  5]   1.00-2.00   sec  23.1 MBytes   194 Mbits/sec
[  5]   2.00-3.00   sec  23.2 MBytes   195 Mbits/sec
[...]
[  5]  10.00-10.04  sec   710 KBytes   180 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.04  sec   237 MBytes   198 Mbits/sec

The tx data and enable delay bits definitions are taken from Atheros'
AR9344 Data Sheet Section "8.6.1 Ethernet Configuration (ETH_CFG)" on
page 153.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-08-13 08:48:37 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config x86: add support to set GRUB menu entry title 2018-07-30 15:55:21 +02:00
include firmware-utils: add sercomm/netgear tool 2018-08-13 08:37:19 +02:00
package packages: nvram: make it possible to include it for ath79 targets 2018-08-13 08:46:22 +02:00
scripts scripts: time.pl: avoid hard Time::HiRes dependency 2018-08-05 12:24:01 +02:00
target ath79: gmac: add parsers for rxd(v)- and tx(d|en)-delay for AR9344 2018-08-13 08:48:37 +02:00
toolchain toolchain/glibc: update to latest 2.26 commit 2018-08-07 14:28:48 +02:00
tools firmware-utils: add sercomm/netgear tool 2018-08-13 08:37:19 +02:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore .gitignore: add .project & .cproject for eclipse users 2018-01-17 11:07:17 +01:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in merge: base: update base-files and basic config 2017-12-08 19:41:18 +01:00
feeds.conf.default feeds: switch git.lede-project.org URLs to git.openwrt.org 2018-01-16 16:59:22 +01:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: include package directory in sha256sums when running on buildbot 2018-06-27 18:54:09 +02:00
README build: README punctuation pendantry 2018-07-08 12:05:16 +01:00
rules.mk rules.mk: replace iremap when using GCC 8 2018-07-22 17:16:52 +02:00

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