Error while adding usb ethernet driver

[Deval Shah]

I have got some more issues on which I want some help.

1. I updated the rtems-libbsd to the latest version, and it looks like all
the device_printf are closed in one of the update. I am not able to see any
log coming from them. Is there any way to switch that on ?

2. I could not find file "rtems/bsd/local/opt_platform.h" in my build. This
is used by if_smsc.c. What is the alternative file ? or should I just
comment this out ?

3. Chris asked me to see the changes from the file sys/dev/cadence/if_cgem.c
and apply in the usb_ethernet driver. I am unable to find alternative of
the variable "n" at line "sc->ifp->if_collisions += n;" in the file
if_smsc.c.

4. if_smsc.c is using the function "usbd_m_copy_in" which is present in the
file sys/dev/usb/usb_busdma.c. But due to this macro #if USB_HAVE_MBUF the
function is not getting compiled. From where to switch this macro on ?

Thanks,
Deval Shah

On Mon, Jul 4, 2016 at 7:51 PM, Deval Shah <deval.maker at gmail.com> wrote:

> okay I get it.
>
> On Mon, Jul 4, 2016 at 11:31 AM, Chris Johns <chrisj at rtems.org> wrote:
>
>> On 04/07/2016 15:46, Sebastian Huber wrote:
>>
>>> On 03/07/16 06:56, Chris Johns wrote:
>>>
>>>> On 30/06/2016 20:22, Deval Shah wrote:
>>>>
>>>>> On Tue, Jun 28, 2016 at 3:12 AM, Chris Johns <chrisj at rtems.org
>>>>> <mailto:chrisj at rtems.org>> wrote:
>>>>>
>>>>>     It might pay for us to add these to an RTEMS header to make porting
>>>>>     simpler.
>>>>>
>>>>> Can't we update our sys/net/if.c and sys/net/if_var.h files accourding
>>>>> to new FreeBSD ?
>>>>>
>>>>
>>> I don't think its a good idea to selectively update random files of the
>>> network stack core.
>>>
>>>
>> I am fine with this and understand the reasons.
>>
>>
>>>> I do not know. Currently we have a policy of keeping as much at the
>>>> snapshot point as we can. Sebastian has looked at moving to FreeBSD 10
>>>> and backed off doing so because it was more work than he could handle
>>>> due to changes in FreeBSD 10.
>>>>
>>>> I am not against something like this being merged if the change is
>>>> localised to just those files, it works, and the existing drivers
>>>> work. If the change ripples out across the code base then it would be
>>>> a problem.
>>>>
>>>
>>> Partial updates make it harder and harder to do a major update. I did
>>> this for complete subsystems like SDCard/MMC/USB, however, doing this
>>> for individual files is really a problem if want to update. The blocking
>>> point for an easy update to FreeBSD 10 or 11 are the user space command
>>> line programs like ifconfig and route. We need a better general approach
>>> to deal with user space programs.
>>>
>>
>> It would be good to see if dynamic loading can be used to help here. I
>> would need some time to sort through the issues but in theory we should be
>> able to do this.
>>
>> We may have time to do an update later this year.
>>>
>>
>> This would be good.
>>
>> Chris
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/devel/attachments/20160705/16974350/attachment-0002.html>