netdev - Re: [PATCH v2 0/7] can: CAN network device driver interface and drivers

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Message-ID: <4A095373.9010205@volkswagen.de>
Date:	Tue, 12 May 2009 12:46:11 +0200
From:	Oliver Hartkopp <oliver.hartkopp@...kswagen.de>
To:	Wolfgang Grandegger <wg@...ndegger.com>,
	Subrata Modak <subrata@...ux.vnet.ibm.com>
CC:	ltp-list <ltp-list@...ts.sf.net>, socketcan-users@...ts.berlios.de,
	netdev@...r.kernel.org
Subject: Re: [PATCH v2 0/7] can: CAN network device driver interface and drivers

Wolfgang Grandegger wrote:
> Subrata Modak wrote:
>> Hi Oliver/Wolfgang,
>>
>>> Hello,
>>>
>>> here comes v2 of the patch series posted some time ago. See
>>>
>>>  http://marc.info/?l=linux-netdev&m=123507025810612&w=4.
>>>
>>> Changes since v1:
> [...]
>> Would you also like to send a patch to update the testcases for CAN in LTP
>> (http://ltp.cvs.sourceforge.net/viewvc/ltp/ltp/testcases/network/can/filter-tests/) ?
>> These tests were originally picked up from:
>> http://svn.berlios.de/wsvn/socketcan/trunk/test/?rev=877&amp;sc=1
>
> The existing tests uses the vcan (virtual CAN) driver, which is not
> affected by these patches. Are you thinking about tests using *real* CAN
> devices?
>

Hi Subrata,

indeed extending the test-cases to the real CAN drivers would urge you 
to add a least
two hardware CAN-interfaces to your test system and wire them correctly 
with the
appropriate termination.
It's like having *all* ethernet cards available in your linux box to 
test them ;-)
Some of these CAN controllers are only available as an on-chip device
(e.g. for some PowerPC CPUs).

If there is some room for LTP improvements, i would tend to create some 
more test-cases
for the networklayer stuff in linux/net/can using the existent virtual 
CAN driver.

Best regards,
Oliver

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