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From: Sagi Grimberg <sagig-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: Mark Lehrer <lehrer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>,
	Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: mlx5 + SRP: max_qp_sz mismatch
Date: Tue, 26 Aug 2014 19:10:55 +0300	[thread overview]
Message-ID: <53FCB18F.5030608@dev.mellanox.co.il> (raw)
In-Reply-To: <CADvaNzWAZiNiwBAVYVA5it7K3A4CAozkeHn8SowYNT7iE6YykA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On 8/20/2014 6:51 PM, Mark Lehrer wrote:
>>  From what I see srp_sq_size is controlled via
>> configfs. Can you set it to 2048 just for the sake of
>> confirmation this is indeed the issue?
>
> Now that we have confirmed that this works, what is the proper way to
> fix the problem?  Is the core issue with mlx5 or srp?
>
> Thanks,
> Mark
>

Since I don't know how true send queue size can be computed from the
device capabilities at the moment -I can suggest a fix to srpt to retry
with srp_sq_size/2 (ans so on until it succeeds...)

CC'ing Bart and Eli.

Sagi.
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  parent reply	other threads:[~2014-08-26 16:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-18 23:20 mlx5 + SRP: max_qp_sz mismatch Mark Lehrer
     [not found] ` <CADvaNzWGThMx1gMYfheFVwHzk10+8KWmAPkYZ1_FxArhdmri8Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-19 14:50   ` Sagi Grimberg
     [not found]     ` <53F36420.3060607-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2014-08-19 17:01       ` Mark Lehrer
     [not found]         ` <CADvaNzVkKuvHw58meQD962VSm4Y-QZoHC3ndsYSBW8rw7S68cw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-20 15:51           ` Mark Lehrer
     [not found]             ` <CADvaNzWAZiNiwBAVYVA5it7K3A4CAozkeHn8SowYNT7iE6YykA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-26 16:10               ` Sagi Grimberg [this message]
     [not found]                 ` <53FCB18F.5030608-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2014-08-27 11:19                   ` Bart Van Assche
     [not found]                     ` <53FDBED2.2060707-HInyCGIudOg@public.gmane.org>
2014-08-27 11:28                       ` Eli Cohen
     [not found]                         ` <CFE9BFE80FFE4D4892AA5D31387E310F014FC414E5-LSMZvP3E4uyuSA5JZHE7gA@public.gmane.org>
2014-08-28 15:58                           ` Bart Van Assche
     [not found]                             ` <53FF51BE.1080103-HInyCGIudOg@public.gmane.org>
2014-09-02 17:36                               ` Mark Lehrer

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