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From: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: "Hefty,
	Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Jason Gunthorpe
	<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Cc: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	Benjamin Drung
	<benjamin.drung-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"Weiny, Ira" <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: rdma-core 12 breaks libibverbs ABI
Date: Fri, 27 Jan 2017 09:32:51 -0500	[thread overview]
Message-ID: <41e74ed7-fd8d-89cf-2c79-b99a8d786fac@redhat.com> (raw)
In-Reply-To: <1828884A29C6694DAF28B7E6B8A82373AB0E1609-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>


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On 1/26/2017 8:17 PM, Hefty, Sean wrote:
>> - Ship libibverbs.rpm with the updated driver and matched libibverbs
>>   This is pretty easy, I probably would recommend this.
> 
> This has issues if there are multiple providers present.  Maybe that doesn't happen in non-testing environments.  I wonder if the distros would agree with this approach.

I don't know how much I would rely on the belief that mixed environments
don't happen outside of testing.  In particular, the structure of Lustre
filesystems or the need to gateway from a fabric that one brand of
storage server doesn't support to another one would both seem to be
times when mixed hardware might exist.  For that matter, the typical
stock trading RDMA environment mixes IB and Ethernet, maybe in the
future it will have OPA in there too?  I think you are right that it is
the most common, but I don't think we can rely on it being that way all
the time.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
    GPG Key ID: B826A3330E572FDD
    Key fingerprint = AE6B 1BDA 122B 23B4 265B  1274 B826 A333 0E57 2FDD


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  parent reply	other threads:[~2017-01-27 14:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-26 15:55 rdma-core 12 breaks libibverbs ABI Benjamin Drung
     [not found] ` <1485446147.4194.4.camel-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>
2017-01-26 17:13   ` Jason Gunthorpe
     [not found]     ` <20170126171325.GA16562-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-26 17:35       ` Christoph Hellwig
     [not found]         ` <20170126173548.GA15006-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-01-26 18:09           ` Jason Gunthorpe
     [not found]             ` <20170126180926.GB20330-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-26 18:11               ` Christoph Hellwig
     [not found]                 ` <20170126181113.GA8679-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-01-26 18:27                   ` Jason Gunthorpe
     [not found]                     ` <20170126182753.GA5056-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-26 20:38                       ` Hefty, Sean
     [not found]                         ` <1828884A29C6694DAF28B7E6B8A82373AB0E132B-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-01-26 21:49                           ` Jason Gunthorpe
2017-01-26 20:23                   ` Leon Romanovsky
     [not found]                     ` <20170126202330.GX6005-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-01-26 23:53                       ` Hefty, Sean
     [not found]                         ` <1828884A29C6694DAF28B7E6B8A82373AB0E15AD-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-01-27  1:04                           ` Jason Gunthorpe
     [not found]                             ` <20170127010452.GA7826-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-27  1:17                               ` Hefty, Sean
     [not found]                                 ` <1828884A29C6694DAF28B7E6B8A82373AB0E1609-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-01-27 14:32                                   ` Doug Ledford [this message]
     [not found]                                     ` <41e74ed7-fd8d-89cf-2c79-b99a8d786fac-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-01-27 16:22                                       ` Jason Gunthorpe
2017-01-31 18:37                                       ` Coulter, Susan K
     [not found]                                         ` <A4803088-726E-4B88-B421-CE1969B6E25B-K3XgeB3KlJxL3NSqSJqx7PIbXMQ5te18@public.gmane.org>
2017-01-31 20:37                                           ` Christoph Hellwig
2017-01-27 21:16                               ` Weiny, Ira
2017-01-31 12:23           ` Benjamin Drung
     [not found]             ` <1485865383.4257.10.camel-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>
2017-01-31 15:06               ` Benjamin Drung
     [not found]                 ` <1485875171.4257.18.camel-EIkl63zCoXaH+58JC4qpiA@public.gmane.org>
2017-01-31 17:35                   ` Jason Gunthorpe
2017-01-31 16:38               ` Jason Gunthorpe

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