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From: "Woodruff, Robert J" <robert.j.woodruff-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	Vladimir Sokolovsky
	<vlad-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
Cc: "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"ewg-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org"
	<ewg-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org>
Subject: Re: [ANNOUNCE] OFED 4.8-rc2 release is available
Date: Thu, 4 May 2017 14:28:26 +0000	[thread overview]
Message-ID: <9C6B67F36DCAFC479B1CF6A967258A8C7E953FA6@ORSMSX115.amr.corp.intel.com> (raw)
In-Reply-To: <20170504084933.GA1359-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>

Christoph wrote,
>ping?  How does OFED manage to include hardware support (for a long time
>apparently!) that's never seen any upstream exposure?

OFED allows code that is not upstream to be included as technology preview (not built by default) to allow people to use it. 
In the case of the Xeon-Phi code that uses peer to peer PCI transfers, it is not clear the Linux community would every accept it the way it is now.
I saw on the list a year or so back some patches that Mellanox submitted to allow support for PCI peer to peer transfers like what the Xeon Phi code
needs, and they got puked all over. So until that gets all worked out in Linux, I suspect this code will have to stay out of tree. 
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  parent reply	other threads:[~2017-05-04 14:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-26 12:46 [ANNOUNCE] OFED 4.8-rc2 release is available Vladimir Sokolovsky
     [not found] ` <590096A3.5090107-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2017-04-27  7:06   ` Christoph Hellwig
     [not found]     ` <20170427070657.GA13585-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-05-04  8:49       ` Christoph Hellwig
     [not found]         ` <20170504084933.GA1359-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-05-04 14:28           ` Woodruff, Robert J [this message]
     [not found]             ` <9C6B67F36DCAFC479B1CF6A967258A8C7E953FA6-8oqHQFITsIFqS6EAlXoojrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-05-04 14:50               ` Christoph Hellwig
     [not found]                 ` <20170504145026.GA22388-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-05-04 15:08                   ` Woodruff, Robert J
2017-05-04 17:19                   ` Hefty, Sean
     [not found]                     ` <1828884A29C6694DAF28B7E6B8A82373AB1199E1-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-05-04 18:07                       ` Leon Romanovsky
     [not found]                     ` <e69349c0-02d0-9266-b5aa-247192e5a46c@redhat.com>
     [not found]                       ` <1828884A29C6694DAF28B7E6B8A82373AB119B66@ORSMSX109.amr.corp.intel.com>
     [not found]                         ` <1828884A29C6694DAF28B7E6B8A82373AB119B66-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-05-04 18:58                           ` Doug Ledford
2017-05-04 18:15                   ` Leon Romanovsky
2017-05-04 15:30               ` Jason Gunthorpe
     [not found]                 ` <20170504153003.GA854-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-05-04 17:34                   ` [ewg] " Hefty, Sean
     [not found]                     ` <1828884A29C6694DAF28B7E6B8A82373AB1199FA-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-05-04 17:41                       ` Jason Gunthorpe
     [not found]                         ` <20170504174105.GB20449-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-05-04 19:07                           ` Paul Grun
     [not found]                             ` <BN6PR11MB139465918AC8DFAAB56030B6B2EA0-1gF2/dm/6VsyQw8Ag4AtH5PPoyLQLiKMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-05-04 20:17                               ` [ewg] " Jason Gunthorpe
     [not found]                                 ` <20170504201721.GA24298-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-05-04 23:47                                   ` Coulter, Susan K
2017-05-05  0:05                                   ` [ewg] " Coulter, Susan K
2017-05-04 18:40                       ` Doug Ledford
     [not found]                         ` <75ebb17e-cec3-6605-2a2f-d2533e95a5ec-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-05-04 19:14                           ` Woodruff, Robert J
     [not found]                             ` <9C6B67F36DCAFC479B1CF6A967258A8C7E95451A-8oqHQFITsIFqS6EAlXoojrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-05-04 20:14                               ` Doug Ledford
     [not found]                                 ` <867b51f9-ad2f-6e8b-6aa8-b5b8fb119931-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-05-04 20:54                                   ` Woodruff, Robert J
2017-05-05  3:42                       ` Jim Foraker
     [not found]                         ` <e982e074-4a0a-397f-fbe2-63ff0232c56d-i2BcT+NCU+M@public.gmane.org>
2017-05-05  7:43                           ` richard Croucher
2017-04-26 12:46 Vladimir Sokolovsky

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