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Groups > linux.kernel > #1526368

Re: Synopsys Ethernet QoS Driver

From Rayagond Kokatanur <rayagond@vayavyalabs.com>
Newsgroups linux.kernel
Subject Re: Synopsys Ethernet QoS Driver
Date 2016-11-21 06:30 +0100
Message-ID <sFPkZ-5k4-5@gated-at.bofh.it> (permalink)
References <sESkW-8jW-17@gated-at.bofh.it> <sESkW-8jW-15@gated-at.bofh.it> <sFelr-5AY-15@gated-at.bofh.it>
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On Sat, Nov 19, 2016 at 7:26 PM, Rabin Vincent <rabin@rab.in> wrote:
> On Fri, Nov 18, 2016 at 02:20:27PM +0000, Joao Pinto wrote:
>> For now we are interesting in improving the synopsys QoS driver under
>> /nect/ethernet/synopsys. For now the driver structure consists of a single file
>> called dwc_eth_qos.c, containing synopsys ethernet qos common ops and platform
>> related stuff.
>>
>> Our strategy would be:
>>
>> a) Implement a platform glue driver (dwc_eth_qos_pltfm.c)
>> b) Implement a pci glue driver (dwc_eth_qos_pci.c)
>> c) Implement a "core driver" (dwc_eth_qos.c) that would only have Ethernet QoS
>> related stuff to be reused by the platform / pci drivers
>> d) Add a set of features to the "core driver" that we have available internally
>
> Note that there are actually two drivers in mainline for this hardware:
>
>  drivers/net/ethernet/synopsis/
>  drivers/net/ethernet/stmicro/stmmac/

Yes the later driver (drivers/net/ethernet/stmicro/stmmac/) supports
both 3.x and 4.x. It has glue layer for pci, platform, core etc,
please refer this driver once before you start.

You can start adding missing feature of 4.x in stmmac driver.

>
> (See http://lists.openwall.net/netdev/2016/02/29/127)
>
> The former only supports 4.x of the hardware.
>
> The later supports 4.x and 3.x and already has a platform glue driver
> with support for several platforms, a PCI glue driver, and a core driver
> with several features not present in the former (for example: TX/RX
> interrupt coalescing, EEE, PTP).
>
> Have you evaluated both drivers?  Why have you decided to work on the
> former rather than the latter?



-- 
wwr
Rayagond

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Thread

Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-18 15:30 +0100
  Re: Synopsys Ethernet QoS Driver Rabin Vincent <rabin@rab.in> - 2016-11-19 15:00 +0100
    Re: Synopsys Ethernet QoS Driver Rayagond Kokatanur <rayagond@vayavyalabs.com> - 2016-11-21 06:30 +0100
      Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 13:40 +0100
        Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-21 14:00 +0100
          Re: Synopsys Ethernet QoS Driver Lars Persson <lars.persson@axis.com> - 2016-11-21 14:30 +0100
            Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-21 15:30 +0100
              Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 16:10 +0100
                Re: Synopsys Ethernet QoS Driver Lars Persson <lars.persson@axis.com> - 2016-11-21 16:50 +0100
                Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 17:20 +0100
                Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-22 15:20 +0100
                Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-23 12:10 +0100
                Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-23 12:20 +0100
                Re: Synopsys Ethernet QoS Driver Lars Persson <lars.persson@axis.com> - 2016-11-23 12:50 +0100
                Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-23 12:50 +0100
          Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 14:50 +0100
            Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-21 15:40 +0100
              Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-21 16:10 +0100
                Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 16:20 +0100
              Re: Synopsys Ethernet QoS Driver Joao Pinto <Joao.Pinto@synopsys.com> - 2016-11-21 16:10 +0100
              Re: Synopsys Ethernet QoS Driver Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2016-11-23 09:10 +0100

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