Re: RoCE passive side failures on 4.4-rc5

[Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

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On 12/21/2015 10:08 AM, Matan Barak wrote:
> On Sun, Dec 20, 2015 at 9:29 AM, Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> wrote:
>> On 12/17/2015 3:58 PM, Or Gerlitz wrote:
>>>
>>> Using 4.4-rc5+ [1] and **not** applying any of the patches I sent today,
>>> I noted that RoCE passive side isn't working (rdma-cm, ibv_rc_pingpong
>>> works).
>>>
>>> I have two nodes in ConnectX3 VPI config (port1 IB and port2 Eth), the one
>>> with the 4.4-rc5 kernel can act as both (rping) client/server for IB links
>>> but only (rping) client for RoCE.
>>>
>>> I tried both inter-node and loopback runs, in all cases, the client side
>>> getsCM
>>> reject with reason 28, see [2], tried both iser and rping. Eth (ICMP, TCP)
>>> works OK.
>>
>>
>> OK, small progress, when the force Eth link type on my IB port (using mlx4
>> sysfs), things work.
>>
>> You should be able to reproduce it on your non-VPI systems the other way
>> around, by
>> forcing IB link type on one of the Eth ports and see the failure.
>>
>> I Saw the same behavior with both 4.4-rc2 and 4.4-rc5
>>
>> Or.
> 
> I've posted a patch that fixes that, please take a look at [1].
> 
> Regards,
> Matan
> 
> [1] https://www.mail-archive.com/linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org/msg30777.html

I've been seeing this too in my 4.4-rc testing, so I'll have test
results today.


-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
              GPG KeyID: 0E572FDD



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