From: "André Roth" <neolynx@gmail.com>
To: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
<netdev@vger.kernel.org>, <linux-amlogic@lists.infradead.org>,
Alexandre Torgue <alexandre.torgue@st.com>
Subject: Re: stmmac/RTL8211F/Meson GXBB: TX throughput problems
Date: Sun, 18 Sep 2016 22:42:40 +0200 [thread overview]
Message-ID: <20160918224240.0bf5a9ed@gmail.com> (raw)
In-Reply-To: <ce15ad26-2d07-655d-b813-947ad86696ac@st.com>
Hello,
> For example, you could try disabling the scatter-gather or tx-cum
> via ethtool and seeing if there is some benefit; so we could image
> some problem on your HW or SYNP MAC integration for checksumming
> on tx side.
disabling the following:
ethtool -K eth0 sg off
or:
ethtool -K eth0 tx off
does not prevent the network communication going down..
> Also you could check the AXI tuning and PBL value. To be honest
> (thinking about your problem) I can actually suspect some related
> problem on bus setup. So I suggest you to play with these value
> (better if you ask for having values from HW validation on your side).
> Otherwise the stmmac uses a default that cannot be good for your
> platform. For example, sometime I have seen that PBL is better if
> reduced to 8 instead of 32 and w/o 4xPBL...
how can I set those values ?
thanks for your time,
andre
next prev parent reply other threads:[~2016-09-18 20:42 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-11 20:39 stmmac/RTL8211F/Meson GXBB: TX throughput problems Martin Blumenstingl
2016-09-12 16:37 ` Alexandre Torgue
2016-09-12 21:26 ` Martin Blumenstingl
2016-09-17 21:23 ` André Roth
2016-09-26 6:17 ` Giuseppe CAVALLARO
2016-10-01 15:58 ` Martin Blumenstingl
2016-11-03 16:36 ` Jerome Brunet
2016-11-05 12:20 ` Martin Blumenstingl
2016-11-13 19:20 ` André Roth
[not found] ` <216F2694-1C1D-44DA-AC15-57ED15C24BBE@bluematt.me>
2016-09-12 21:29 ` Martin Blumenstingl
2016-09-14 15:30 ` Giuseppe CAVALLARO
2016-09-18 20:42 ` André Roth [this message]
2016-09-19 5:38 ` Giuseppe CAVALLARO
2016-10-01 20:15 ` Martin Blumenstingl
2016-10-01 20:40 ` Martin Blumenstingl
2016-10-31 10:25 ` André Roth
2016-11-03 16:57 ` Jerome Brunet
2016-11-07 10:59 ` Giuseppe CAVALLARO
2016-11-07 17:37 ` Martin Blumenstingl
2016-11-14 7:47 ` Giuseppe CAVALLARO
2016-11-14 11:02 ` Jerome Brunet
2016-11-14 15:00 ` Andreas Färber
2016-11-15 11:27 ` Jerome Brunet
2016-11-13 19:13 ` André Roth
2016-11-14 10:49 ` Jerome Brunet
2016-11-17 18:44 ` André Roth
2016-11-17 21:47 ` Jerome Brunet
2016-10-01 20:26 ` Martin Blumenstingl
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