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Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config for multiple queues

From Joao Pinto <Joao.Pinto@synopsys.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config for multiple queues
Date 2017-05-08 14:10 +0200
Message-ID <tEPEe-3LB-17@gated-at.bofh.it> (permalink)
References (5 earlier) <tENVM-2EL-9@gated-at.bofh.it> <tEOoO-2O9-17@gated-at.bofh.it> <tEPbb-3lD-3@gated-at.bofh.it> <tEPkS-3q9-13@gated-at.bofh.it> <tEPux-3tj-3@gated-at.bofh.it>
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Às 12:56 PM de 5/8/2017, Andy Shevchenko escreveu:
> On Mon, May 8, 2017 at 2:40 PM, Joao Pinto <Joao.Pinto@synopsys.com> wrote:
>> Às 12:34 PM de 5/8/2017, Andy Shevchenko escreveu:
>>> On Mon, May 8, 2017 at 1:42 PM, Joao Pinto <Joao.Pinto@synopsys.com> wrote:
>>>> Às 11:12 AM de 5/8/2017, Andy Shevchenko escreveu:
>>>>> On Mon, May 8, 2017 at 12:54 PM, Joao Pinto <Joao.Pinto@synopsys.com> wrote:
>>>>>> Às 10:36 AM de 5/8/2017, Andy Shevchenko escreveu:
> 
>>>
>>> [   44.374161] stmmac_dvr_probe <<< 0 0
>>>
>>
>> Ok, so this is the cause of the problem. The driver is geting 0 for real RX and
>> TX queues.
>>
>> Your setup uses standard DT parsing from stmmac_platform or a custom one?
>>
>> If you are using stmmac_probe_config_dt():
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__git.kernel.org_pub_scm_linux_kernel_git_torvalds_linux.git_tree_drivers_net_ethernet_stmicro_stmmac_stmmac-5Fplatform.c-23n363&d=DwIFaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=s2fO0hii0OGNOv9qQy_HRXy-xAJUD1NNoEcc3io_kx0&m=fJQj7RiT2sksJYOAZ9VSJUDnxPR7RlE6Fw_cTV0_Mqc&s=KhdAPUtP0twDkibE89cLYs8JjnxEvBgav5uf08WL_e8&e= 
>>
>> You will find a function named stmmac_mtl_setup() being called:
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__git.kernel.org_pub_scm_linux_kernel_git_torvalds_linux.git_tree_drivers_net_ethernet_stmicro_stmmac_stmmac-5Fplatform.c-23n492&d=DwIFaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=s2fO0hii0OGNOv9qQy_HRXy-xAJUD1NNoEcc3io_kx0&m=fJQj7RiT2sksJYOAZ9VSJUDnxPR7RlE6Fw_cTV0_Mqc&s=rTxn0fwdudwq9XAquH60xNHN538KBQ6_n4wODdLoyA0&e= 
>>
>> In this function, the number of RX and TX queues is being set to 1 by default.
> 
> Ah-ha, now I know how it's happened.
> You forget to update all setup() hooks in PCI bus driver :-)
> 
> I will prepare a fix.
> Just tell me should I put Fixes tag or not? And if yes, what commit
> should I refer to?
> 

Great, you can use this commit:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c?id=26d6851fd24ed5d88580d66b4c8384947d5ca29b

Thanks!

Joao

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Thread

Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-08 09:00 +0200
  Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 11:40 +0200
    Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Joao Pinto <Joao.Pinto@synopsys.com> - 2017-05-08 12:00 +0200
      Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 12:20 +0200
        Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Joao Pinto <Joao.Pinto@synopsys.com> - 2017-05-08 12:50 +0200
          Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 13:40 +0200
            Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Joao Pinto <Joao.Pinto@synopsys.com> - 2017-05-08 13:50 +0200
              Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 14:00 +0200
                Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Joao Pinto <Joao.Pinto@synopsys.com> - 2017-05-08 14:10 +0200
                Re: [PATCH v3 net-next 01/11] net: stmmac: prepare dma op mode config  for multiple queues Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-08 14:40 +0200

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