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From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
	"Weiny, Ira" <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] IB: merge struct ib_device_attr into struct ib_device
Date: Thu, 24 Sep 2015 08:41:17 +0300	[thread overview]
Message-ID: <56038CFD.8030908@mellanox.com> (raw)
In-Reply-To: <20150923184106.GA7759-jcswGhMUV9g@public.gmane.org>

On 9/23/2015 9:41 PM, Christoph Hellwig wrote:
> On Wed, Sep 23, 2015 at 10:23:15AM -0700, Chuck Lever wrote:
>> Getting rid of ib_query_device() makes sense. Moving the device
>> attributes into ib_device is nice. Getting rid of ib_device_attr
>> is of questionable value. Why do we need to go there?
>>
>> IB core API changes generate merge conflicts with feature work
>> in the ULPs. It’s a pain for maintainers. In this particular
>> case, keeping ib_device_attr would greatly reduce ULP churn.
> But it will keep a totally nonsenical structure around in the future.
>
> Note that the whole in-kernel Verbs API is a bit of a nightmare, so
> there will be all kinds of larger changes.  Better get it right as long
> as we have as few ULPs as we have now.
>

Christoph,

We had a smaller volume move to cache the device attributes on the IB 
device structure, and I just
realized it was dropped on the floor. Ira, that was a reviewer comment 
you got when worked on OPA
and I missed the fact it didn't reach to acceptance 
http://marc.info/?t=142309310600006&r=1&w=2
I vote for 1st and most doing this and taking things from there.

Or.
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  parent reply	other threads:[~2015-09-24  5:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-23 15:52 merge struct ib_device_attr into struct ib_device Christoph Hellwig
     [not found] ` <1443023567-13259-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-09-23 15:52   ` [PATCH] IB: " Christoph Hellwig
     [not found]     ` <1443023567-13259-2-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-09-23 17:23       ` Chuck Lever
     [not found]         ` <8BE4B1B3-54CD-46D1-9BBD-9149F6219468-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2015-09-23 18:41           ` Christoph Hellwig
     [not found]             ` <20150923184106.GA7759-jcswGhMUV9g@public.gmane.org>
2015-09-24  5:41               ` Or Gerlitz [this message]
     [not found]                 ` <56038CFD.8030908-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-09-24  6:48                   ` Sagi Grimberg
     [not found]                     ` <56039CB1.2090706-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-09-24 17:07                       ` Weiny, Ira
2015-09-24 13:35                   ` Christoph Hellwig
     [not found]                     ` <20150924133519.GA6291-jcswGhMUV9g@public.gmane.org>
2015-10-11 16:16                       ` Sagi Grimberg
     [not found]                         ` <561A8B5B.1010309-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-10-11 16:24                           ` Christoph Hellwig
     [not found]                             ` <20151011162430.GA6450-jcswGhMUV9g@public.gmane.org>
2015-10-12  4:10                               ` Sagi Grimberg
  -- strict thread matches above, loose matches on Subject: below --
2015-10-12  6:57 merge struct ib_device_attr into struct ib_device V2 Christoph Hellwig
     [not found] ` <1444633078-27166-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-10-12  6:57   ` [PATCH] IB: merge struct ib_device_attr into struct ib_device Christoph Hellwig

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