[PATCH rtems-libbsd v2 0/5] Beagle BSP: USB Template Driver for CDC Ethernet

Christian Mauderer oss at c-mauderer.de
Sun Aug 8 20:20:55 UTC 2021


Hello Chris,

I think all open questions should be answered or did I miss one from 
your side? If not I would like to push the patches.

Best regards

Christian

On 08/08/2021 11:46, Ahamed Husni wrote:
> Hi,
> 
> On Sun, Aug 8, 2021 at 3:00 PM Christian Mauderer <oss at c-mauderer.de 
> <mailto:oss at c-mauderer.de>> wrote:
> 
>     Hello Husni,
> 
>     On 08/08/2021 11:15, Ahamed Husni wrote:
>      > Hi Christian,
>      >
>      > On Sun, Aug 8, 2021 at 1:36 PM Christian Mauderer
>     <oss at c-mauderer.de <mailto:oss at c-mauderer.de>
>      > <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>>> wrote:
>      >
>      >     Hello Husni,
>      >
>      >     On 07/08/2021 21:56, Ahamed Husni wrote:
>      >      > Hi Christian,
>      >      >
>      >      > Are there any issues I should address in this patch set?
>      >
>      >     I think the big open question is the one from Chris:
>      >
>      > https://lists.rtems.org/pipermail/devel/2021-July/068634.html
>     <https://lists.rtems.org/pipermail/devel/2021-July/068634.html>
>      >   
>       <https://lists.rtems.org/pipermail/devel/2021-July/068634.html
>     <https://lists.rtems.org/pipermail/devel/2021-July/068634.html>>
>      >
>      >     You mentioned that you filtered the ones for the imported
>     code. That's
>      >     OK for most symbols if they are not relevant for the part
>     where you
>      >     work
>      >     on. But Chris copied a whole block of "extern struct
>      >     usb_temp_device_desc *". It's not clear for me whether you
>     filtered
>      >     some
>      >     of them or whether they haven't been generated.
>      >
>      > The "extern struct usb_temp_device_desc *" block is in the
>      > usb_template.h header.
>      > These are not generated structs.
>      > These usb device descriptor structs are for each usb device
>     currently
>      > supported by
>      > freebsd. This patch set only imports the CDC Ethernet device
>     template.
>      > So we can
>      > exclude the other structs with #ifndef __rtems__ if necessary. If
>     the
>      > extra structs should
>      > be excluded, I can send a patch v3.
>      >
>      >     If they are generated: Please keep them. Basically keep
>     everything that
>      >     is in one of the files that you touch, except if you have a
>     good reason
>      >     why the symbol should _not_ be added.
>      >
>      >     If they are not generated: Please clearly say that.
>      >
>      > Those externs are not generated. They are in the original freebsd
>     source.
>      >
>     https://github.com/freebsd/freebsd-src/blob/main/sys/dev/usb/template/usb_template.h#L106
>     <https://github.com/freebsd/freebsd-src/blob/main/sys/dev/usb/template/usb_template.h#L106>
> 
>      >
>     <https://github.com/freebsd/freebsd-src/blob/main/sys/dev/usb/template/usb_template.h#L106
>     <https://github.com/freebsd/freebsd-src/blob/main/sys/dev/usb/template/usb_template.h#L106>>
> 
>     What I wanted to say was: If the defines like
> 
>         #define        usb_template_cdce _bsd_usb_template_cdce
> 
>     are not generated for the other externa that Chris listed, please say
>     it. I just checked and they are not. So I'm OK with that.
> 
> ah yes. defines for other structs didn't generate. I misunderstood the
> question earlier. Sorry.
> 
>     So if I have followed the discussion correctly, there are no further
>     changes (except for the typo in one file), correct?
> 
> yes.
> 
>     The branches usb-cdce and usb-cdce12 are up to date?
> 
> yes. (the typo is not fixed there either.)
> 
> Best regards,
> Husni.
> 
>     Best regards
> 
>     Christian
> 
>      >
>      > Best regards,
>      > Husni.
>      >
>      >     Best regards
>      >
>      >     Christian
>      >
>      >      >
>      >      > On Mon, Aug 2, 2021 at 12:09 PM Christian MAUDERER
>      >      > <christian.mauderer at embedded-brains.de
>     <mailto:christian.mauderer at embedded-brains.de>
>      >     <mailto:christian.mauderer at embedded-brains.de
>     <mailto:christian.mauderer at embedded-brains.de>>
>      >      > <mailto:christian.mauderer at embedded-brains.de
>     <mailto:christian.mauderer at embedded-brains.de>
>      >     <mailto:christian.mauderer at embedded-brains.de
>     <mailto:christian.mauderer at embedded-brains.de>>>> wrote:
>      >      >
>      >      >     Hello Husni,
>      >      >
>      >      >     Am 01.08.21 um 19:59 schrieb Ahamed Husni:
>      >      >      > Hi Christian,
>      >      >      >
>      >      >      > On Sun, Aug 1, 2021 at 4:57 PM Christian Mauderer
>      >      >     <oss at c-mauderer.de <mailto:oss at c-mauderer.de>
>     <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>>
>      >     <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>
>     <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>>>
>      >      >      > <mailto:oss at c-mauderer.de
>     <mailto:oss at c-mauderer.de> <mailto:oss at c-mauderer.de
>     <mailto:oss at c-mauderer.de>>
>      >     <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>
>     <mailto:oss at c-mauderer.de <mailto:oss at c-mauderer.de>>>>> wrote:
>      >      >      >
>      >      >      >     Hello Husni,
>      >      >      >
>      >      >      >     just tested that and it works fine. With a
>     simple curl
>      >     I can
>      >      >     reach
>      >      >      >     about
>      >      >      >     8.5 MByte/s sending to the beagle and 19.5 MByte/s
>      >     receiving
>      >      >     from it.
>      >      >      >
>      >      >      > That's 68 Mbps for sending. That's an acceptable speed
>      >     isn't it?
>      >      >      >
>      >      >
>      >      >     At the moment I would be OK with basically any speed.
>     It was
>      >     just some
>      >      >     information so that someone who finds the mail knows
>     what he
>      >     can expect.
>      >      >
>      >      >     It would be interesting to see how the speeds compare to a
>      >     FreeBSD
>      >      >     setup
>      >      >     on the Beagle. If there is no bug in our port, it
>     should be about
>      >      >     the same.
>      >      >
>      >      >     Best regards
>      >      >
>      >      >     Christian
>      >      >
>      >      >      >     Please take a look at the points that Chris Johns
>      >     asked. As
>      >      >     soon as
>      >      >      >     these are addressed, I think the patches could
>     be merged.
>      >      >      >
>      >      >      > I just replied to it now. Sorry for the delay.
>      >      >      >
>      >      >      >
>      >      >      >     Please also make the documentation that you started
>      >     for this more
>      >      >      >     public
>      >      >      >     visible. In other words: Send it as patches to the
>      >     list and
>      >      >     not only as
>      >      >      >     a link to some branch!
>      >      >      >
>      >      >      > Noted.
>      >      >      >
>      >      >      >
>      >      >      >     Best regards
>      >      >      >
>      >      >      >     Christian
>      >      >      >
>      >      >      >     On 28/07/2021 13:56, Husni Faiz wrote:
>      >      >      >      > This set of patches import the drivers from
>     freebsd and
>      >      >      >      > configures it for the beagle bsp.
>      >      >      >      >
>      >      >      >      > Github Branch for the commits
>      >      >      >      >
>      > https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>>
>      >      >   
>       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>>>
>      >      >      >
>      >       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>>
>      >      >   
>       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce>>>>
>      >      >      >      >
>      >      >      >      > Patch for 6-freebsd-12 branch
>      >      >      >      >
>      > https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>>
>      >      >   
>       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>>>
>      >      >      >
>      >       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>>
>      >      >   
>       <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>
>      >     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12
>     <https://github.com/drac98/rtems-libbsd/commits/usb-cdce12>>>>
>      >      >      >      >
>      >      >      >      > Husni Faiz (5):
>      >      >      >      >    usb_template:Import CDC Ethernet
>      >      >      >      >    usb_template: Configure template driver
>     only for CDC
>      >      >     Ethernet
>      >      >      >      >    nexus-devices: Include CDC Ethernet for
>     Beagle
>      >      >      >      >    libbsd.py: add usb template files
>      >      >      >      >    create-kernel-namespace for USB Template
>     driver
>      >      >      >      >
>      >      >      >      >   buildset/default.ini                     
>          |
>      >        1 +
>      >      >      >      >   buildset/minimal.ini                     
>          |
>      >        3 +-
>      >      >      >      > 
>       freebsd/sys/dev/usb/template/usb_template.c   | 1493
>      >      >      >     +++++++++++++++++
>      >      >      >      > 
>       freebsd/sys/dev/usb/template/usb_template.h   |
>      >     130 ++
>      >      >      >      > 
>       .../sys/dev/usb/template/usb_template_cdce.c  |
>      >     355 ++++
>      >      >      >      >   freebsd/sys/dev/usb/usb_device.c         
>          |
>      >        8 +-
>      >      >      >      >   libbsd.py                                 
>         |
>      >       25 +
>      >      >      >      >   rtemsbsd/include/bsp/nexus-devices.h     
>          |
>      >        5 +
>      >      >      >      >   .../machine/rtems-bsd-kernel-namespace.h 
>          |
>      >        5 +
>      >      >      >      >   .../include/machine/rtems-bsd-nexus-bus.h 
>         |
>      >       19 +
>      >      >      >      >   10 files changed, 2041 insertions(+), 3
>     deletions(-)
>      >      >      >      >   create mode 100644
>      >      >     freebsd/sys/dev/usb/template/usb_template.c
>      >      >      >      >   create mode 100644
>      >      >     freebsd/sys/dev/usb/template/usb_template.h
>      >      >      >      >   create mode 100644
>      >      >     freebsd/sys/dev/usb/template/usb_template_cdce.c
>      >      >      >      >
>      >      >      >
>      >      >      >
>      >      >      > _______________________________________________
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>      >      >
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