From: Florian Fainelli <f.fainelli@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Board-Maintainers] Raspberry pi 4 - u-boot - genet / scb
Date: Thu, 12 Dec 2019 10:13:27 -0800 [thread overview]
Message-ID: <02f18c7a-08cd-c5e8-164a-14dd9e472b6c@gmail.com> (raw)
In-Reply-To: <1ea9ccff-8095-7454-88a0-25cd26af5360@gmail.com>
On 12/12/19 3:59 AM, Matthias Brugger wrote:
>
>
> On 12/12/2019 11:41, Andre Przywara wrote:
>> On Wed, 11 Dec 2019 10:23:16 +0100
>> Matthias Brugger <matthias.bgg@gmail.com> wrote:
>>
>> Hi,
>>
>>> On 09/12/2019 14:33, Sascha Dewald wrote:
>>>> Hello Amit,
>>>>
>>>> no problem.
>>>>
>>>> Is there some git feature branch, to have a look ?
>>>
>>> Yes I'd love to have a look as well :)
>>
>> We will send an RFC later this week, Amit is doing some cleanup now. At the moment transfers work up to 256 packets (375KB when using TFTP), at this point it breaks, because recycling DMA descriptors is not working for some reason. I haven't found any documentation for the MAC, so I am reverse engineering the Linux driver and doing printf and tcpdump debugging right now. Looking forward to people joining us in this effort ;-)
>>
>
> Thanks for the update. I CC'ed Florian who I think is the SW expert on that
> chip. Maybe he can help you.
Transfers work for up to 256 packets in which direction? Are you
properly consuming descriptors that were produced by the RDMA (on
receive), conversely, polling the TDMA consumer index on transmit? Can
you share your code somewhere so I could see if there are obvious problems?
--
Florian
next prev parent reply other threads:[~2019-12-12 18:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAOdpyqzG0EQMCWqU33cXKHW1ipDLMr3y3Pu7PcRoAxGUeUKAMg@mail.gmail.com>
[not found] ` <ebfa4fcf-5e5a-4eae-837d-ae1c359e6b55@suse.com>
[not found] ` <CAOdpyqxP1c9iGWr3X2PqbcVZE9zB0W4KAjZsKY43v=3v4Dw5Pw@mail.gmail.com>
[not found] ` <CAPnjgZ34Ck0o2X=+LNy-_JZ+-YJ2jdVnEBrmbX_MMs-en+OKRA@mail.gmail.com>
[not found] ` <CAOdpyqzzA-ixd0tzpQBfc4L47xbcgTHhD+8cpoij5Zev0cMpmw@mail.gmail.com>
[not found] ` <CAPnjgZ1+OS5FK4H3VGZa_uPv5Zp6+-XQ-vMQ6QTiMW=pMoPkVw@mail.gmail.com>
[not found] ` <898283c3-6300-7146-8207-bc12829bfcef@gmx.de>
[not found] ` <3c0d3e6f-6827-e5be-7bd7-ed4d172f0513@suse.com>
[not found] ` <20191120112030.1877e0f9@donnerap.cambridge.arm.com>
[not found] ` <CAOdpyqzBSQomDThtHUAgQ8Q52S4msT5tsC-SS7A3g2Ds8Yap4g@mail.gmail.com>
[not found] ` <ed7832b4-b168-aea5-386b-065dcfa3e39f@arm.com>
[not found] ` <CAOdpyqxJwzEfJSOGV+ZpMp4tMATshBBpNEoKQd1utAkAn3cP0w@mail.gmail.com>
2019-12-07 9:27 ` [U-Boot-Board-Maintainers] Raspberry pi 4 - u-boot - genet / scb Andreas Färber
2019-12-07 19:29 ` Sascha Dewald
2019-12-09 11:11 ` Amit Tomer
2019-12-09 13:33 ` Sascha Dewald
2019-12-11 9:23 ` Matthias Brugger
2019-12-12 10:41 ` Andre Przywara
2019-12-12 11:59 ` Matthias Brugger
2019-12-12 18:13 ` Florian Fainelli [this message]
2019-12-12 18:38 ` Andre Przywara
2019-12-12 19:07 ` Florian Fainelli
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