Re: [PATCH V5 5/5] RDMA/isert: Limit read depth based on the device max_sge_rd capability

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On Jul 14, 2015, at 11:49 AM, Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx> wrote:

> 
> 
>> -----Original Message-----
>> From: 'Christoph Hellwig' [mailto:hch@xxxxxxxxxxxxx]
>> Sent: Tuesday, July 14, 2015 10:42 AM
>> To: Steve Wise
>> Cc: 'Christoph Hellwig'; Chuck Lever; dledford@xxxxxxxxxx; infinipath@xxxxxxxxx; sagig@xxxxxxxxxxxx; ogerlitz@xxxxxxxxxxxx;
>> roid@xxxxxxxxxxxx; linux-rdma@xxxxxxxxxxxxxxx; eli@xxxxxxxxxxxx; target-devel@xxxxxxxxxxxxxxx
>> Subject: Re: [PATCH V5 5/5] RDMA/isert: Limit read depth based on the device max_sge_rd capability
>> 
>> On Tue, Jul 14, 2015 at 09:41:00AM -0500, Steve Wise wrote:
>>>> Btw, any hance to make the NFS client use these values as well instead
>>>> of the current rdma_read_max_sge() hack?
>>> 
>>> Chuck, can you add this to your cleanup list?
>> 
>> It would be useful to add this to your series so we can get rid of
>> it for the next merge window instead of introducing a depenency that
>> would defer it to the next merge window.
> 
> Ok, I will do this.

Steve, can you review v2 of the nfs-rdma-for-4.3 series I posted
yesterday? Specifically:

  http://git.linux-nfs.org/?p=cel/cel-2.6.git;a=commit;h=6abafb636e03fbb7f93a26796223833581a70190

Which changes the way xprtrdma uses max_sge.

--
Chuck Lever



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