From: Giuseppe CAVALLARO <peppe.cavallaro@st.com> To: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: "Jerome Brunet" <jbrunet@baylibre.com>, "André Roth" <neolynx@gmail.com>, "Alexandre Torgue" <alexandre.torgue@st.com>, "Johnson Leung" <r58129@freescale.com>, linux-amlogic@lists.infradead.org, netdev@vger.kernel.org, afaerber@suse.de Subject: Re: stmmac/RTL8211F/Meson GXBB: TX throughput problems Date: Mon, 14 Nov 2016 08:47:22 +0100 [thread overview] Message-ID: <68696e92-d056-5f29-9e71-72066f0c7673@st.com> (raw) In-Reply-To: <CAFBinCDq0neyidQBO13F4Yz-GZPorGyRQ2t5Vb-PL0Ls582+4Q@mail.gmail.com> Hello Martin On 11/7/2016 6:37 PM, Martin Blumenstingl wrote: > Hi Peppe, > > On Mon, Nov 7, 2016 at 11:59 AM, Giuseppe CAVALLARO > <peppe.cavallaro@st.com> wrote: >> In the meantime, I will read again the thread just to see if >> there is something I am missing. > if you are re-reading this thread: please note that there are two > devices in discussion here! many thx for the sum :-) > Both are using the Amlogic S905 (GXBB) SoC and both are experiencing > the same issue (Gbit TX issues, RX with Gbit speeds and RX/TX with > 100Mbit speed are NOT affected): > - Odroid-C2 (used by Jerome and André Roth) > - Tronsmart Vega S95 Meta (my device) > > The (Gbit TX) problem seems to be gone on the Odroid-C2 with Jerome's > patch which disables EEE in drivers/net/phy/realtek.c (at least in his > tests, I don't have that device so I can't verify). > The same problem still appears on my Tronsmart Vega S95 Meta even with > the patched PHY driver. just an doubt, maybe useful, in the past, on GiGa setup I saw similar problems and it was due to retiming so maybe 2ns could be necessary (or better granularity via PAD logic if available). Regards Peppe > Unfortunately I don't have a second device to rule out that my > Tronsmart Vega S95 Meta could be broken (not unlikely, I get DDR > errors from time to time in u-boot). Maybe Andreas Faerber can test > ethernet with and without Jerome's patch on one of his Tronsmart > devices. > > > Regards, > Martin >
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From: peppe.cavallaro@st.com (Giuseppe CAVALLARO) To: linus-amlogic@lists.infradead.org Subject: stmmac/RTL8211F/Meson GXBB: TX throughput problems Date: Mon, 14 Nov 2016 08:47:22 +0100 [thread overview] Message-ID: <68696e92-d056-5f29-9e71-72066f0c7673@st.com> (raw) In-Reply-To: <CAFBinCDq0neyidQBO13F4Yz-GZPorGyRQ2t5Vb-PL0Ls582+4Q@mail.gmail.com> Hello Martin On 11/7/2016 6:37 PM, Martin Blumenstingl wrote: > Hi Peppe, > > On Mon, Nov 7, 2016 at 11:59 AM, Giuseppe CAVALLARO > <peppe.cavallaro@st.com> wrote: >> In the meantime, I will read again the thread just to see if >> there is something I am missing. > if you are re-reading this thread: please note that there are two > devices in discussion here! many thx for the sum :-) > Both are using the Amlogic S905 (GXBB) SoC and both are experiencing > the same issue (Gbit TX issues, RX with Gbit speeds and RX/TX with > 100Mbit speed are NOT affected): > - Odroid-C2 (used by Jerome and Andr? Roth) > - Tronsmart Vega S95 Meta (my device) > > The (Gbit TX) problem seems to be gone on the Odroid-C2 with Jerome's > patch which disables EEE in drivers/net/phy/realtek.c (at least in his > tests, I don't have that device so I can't verify). > The same problem still appears on my Tronsmart Vega S95 Meta even with > the patched PHY driver. just an doubt, maybe useful, in the past, on GiGa setup I saw similar problems and it was due to retiming so maybe 2ns could be necessary (or better granularity via PAD logic if available). Regards Peppe > Unfortunately I don't have a second device to rule out that my > Tronsmart Vega S95 Meta could be broken (not unlikely, I get DDR > errors from time to time in u-boot). Maybe Andreas Faerber can test > ethernet with and without Jerome's patch on one of his Tronsmart > devices. > > > Regards, > Martin >
next prev parent reply other threads:[~2016-11-14 7:48 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-09-11 20:39 stmmac/RTL8211F/Meson GXBB: TX throughput problems Martin Blumenstingl 2016-09-11 20:39 ` Martin Blumenstingl 2016-09-12 16:37 ` Alexandre Torgue 2016-09-12 16:37 ` Alexandre Torgue 2016-09-12 21:26 ` Martin Blumenstingl 2016-09-12 21:26 ` Martin Blumenstingl 2016-09-17 21:23 ` André Roth 2016-09-17 21:23 ` André Roth 2016-09-26 6:17 ` Giuseppe CAVALLARO 2016-09-26 6:17 ` Giuseppe CAVALLARO 2016-10-01 15:58 ` Martin Blumenstingl 2016-10-01 15:58 ` Martin Blumenstingl 2016-11-03 16:36 ` Jerome Brunet 2016-11-03 16:36 ` Jerome Brunet 2016-11-05 12:20 ` Martin Blumenstingl 2016-11-05 12:20 ` Martin Blumenstingl 2016-11-13 19:20 ` André Roth 2016-11-13 19:20 ` André Roth [not found] ` <216F2694-1C1D-44DA-AC15-57ED15C24BBE@bluematt.me> 2016-09-12 21:29 ` Martin Blumenstingl 2016-09-12 21:29 ` Martin Blumenstingl 2016-09-14 15:30 ` Giuseppe CAVALLARO 2016-09-14 15:30 ` Giuseppe CAVALLARO 2016-09-18 20:42 ` André Roth 2016-09-18 20:42 ` André Roth 2016-09-19 5:38 ` Giuseppe CAVALLARO 2016-09-19 5:38 ` Giuseppe CAVALLARO 2016-10-01 20:15 ` Martin Blumenstingl 2016-10-01 20:15 ` Martin Blumenstingl 2016-10-01 20:40 ` Martin Blumenstingl 2016-10-01 20:40 ` Martin Blumenstingl 2016-10-31 10:25 ` André Roth 2016-10-31 10:25 ` André Roth 2016-11-03 16:57 ` Jerome Brunet 2016-11-03 16:57 ` Jerome Brunet 2016-11-07 10:59 ` Giuseppe CAVALLARO 2016-11-07 10:59 ` Giuseppe CAVALLARO 2016-11-07 17:37 ` Martin Blumenstingl 2016-11-07 17:37 ` Martin Blumenstingl 2016-11-14 7:47 ` Giuseppe CAVALLARO [this message] 2016-11-14 7:47 ` Giuseppe CAVALLARO 2016-11-14 11:02 ` Jerome Brunet 2016-11-14 11:02 ` Jerome Brunet 2016-11-14 15:00 ` Andreas Färber 2016-11-14 15:00 ` Andreas Färber 2016-11-15 11:27 ` Jerome Brunet 2016-11-15 11:27 ` Jerome Brunet 2016-11-13 19:13 ` André Roth 2016-11-13 19:13 ` André Roth 2016-11-14 10:49 ` Jerome Brunet 2016-11-14 10:49 ` Jerome Brunet 2016-11-17 18:44 ` André Roth 2016-11-17 18:44 ` André Roth 2016-11-17 21:47 ` Jerome Brunet 2016-11-17 21:47 ` Jerome Brunet 2016-10-01 20:26 ` Martin Blumenstingl 2016-10-01 20:26 ` Martin Blumenstingl
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