From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Sagi Grimberg <sagig@dev.mellanox.co.il>
Cc: Christoph Hellwig <hch@infradead.org>,
Chuck Lever <chuck.lever@oracle.com>,
"Hefty, Sean" <sean.hefty@intel.com>,
Steve Wise <swise@opengridcomputing.com>,
"dledford@redhat.com" <dledford@redhat.com>,
"sagig@mellanox.com" <sagig@mellanox.com>,
"ogerlitz@mellanox.com" <ogerlitz@mellanox.com>,
"roid@mellanox.com" <roid@mellanox.com>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"eli@mellanox.com" <eli@mellanox.com>,
"target-devel@vger.kernel.org" <target-devel@vger.kernel.org>,
Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
Trond Myklebust <trond.myklebust@primarydata.com>,
"J. Bruce Fields" <bfields@fieldses.org>,
Oren Duer <oren@mellanox.com>
Subject: Re: [PATCH V3 1/5] RDMA/core: Transport-independent access flags
Date: Mon, 13 Jul 2015 10:50:07 -0600 [thread overview]
Message-ID: <20150713165007.GD23832@obsidianresearch.com> (raw)
In-Reply-To: <55A21BF4.7090601@dev.mellanox.co.il>
On Sun, Jul 12, 2015 at 10:49:08AM +0300, Sagi Grimberg wrote:
> On 7/10/2015 10:34 PM, Christoph Hellwig wrote:
> >On Thu, Jul 09, 2015 at 09:52:59AM -0400, Chuck Lever wrote:
> >>There is one remaining kernel user of ib_reg_phys_mr() in 4.2: Lustre.
> >
> >It's in the staging tree, which proper in-tree code doesn't have to
> >cater for. So as soon as sunrpc is done using the interface we can and
> >should kill it off.
> >
>
> I think we should probably ask the Lustre folks if they have a real use
> case for it before we remove it completely.
I had an interesting conversation with some Lustre devs where they
were very concerned that FMR was going to be removed and they didn't really
seem to even know that FRMR existed.
I'm sure their PHYS_MR usage is crufty old code to support old
adaptors.
And again, here is a great example of how the API is not helping the
ULPs do what they want to do. Lustre doesn't care one bit about this
stuff, they just want to send messages..
Jason
next prev parent reply other threads:[~2015-07-13 16:50 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-05 23:21 [PATCH V3 0/5] Transport-independent MRs Steve Wise
2015-07-05 23:22 ` [PATCH V3 1/5] RDMA/core: Transport-independent access flags Steve Wise
2015-07-06 5:25 ` Christoph Hellwig
2015-07-06 14:23 ` Steve Wise
2015-07-07 8:58 ` 'Christoph Hellwig'
[not found] ` <20150705232158.12029.25472.stgit-PBeJgSbIpn97NCTnQtmixQ@public.gmane.org>
2015-07-06 7:09 ` Haggai Eran
[not found] ` <559A2991.3040304-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-07-06 14:29 ` Steve Wise
2015-07-07 14:17 ` Steve Wise
2015-07-07 14:34 ` Haggai Eran
2015-07-07 14:46 ` Steve Wise
2015-07-07 15:07 ` Haggai Eran
2015-07-06 7:53 ` Sagi Grimberg
2015-07-06 14:37 ` Steve Wise
2015-07-06 16:17 ` Sagi Grimberg
2015-07-06 16:55 ` Steve Wise
2015-07-07 9:00 ` Christoph Hellwig
[not found] ` <20150707090001.GB11736-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-07 9:14 ` Sagi Grimberg
[not found] ` <559B9891.8060907-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-07 14:05 ` Steve Wise
2015-07-07 16:17 ` Jason Gunthorpe
[not found] ` <20150707161751.GA623-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-07 16:27 ` Sagi Grimberg
[not found] ` <559BFE03.4020709-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-07 21:36 ` Jason Gunthorpe
2015-07-08 7:29 ` Sagi Grimberg
[not found] ` <559CD174.4040901-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-08 8:13 ` 'Christoph Hellwig'
[not found] ` <20150708081320.GB24203-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-08 10:05 ` Sagi Grimberg
[not found] ` <559CF5E8.6080000-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-08 10:20 ` 'Christoph Hellwig'
[not found] ` <20150708102035.GA28421-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-08 11:08 ` Sagi Grimberg
[not found] ` <559D0498.9050809-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-08 17:14 ` Hefty, Sean
2015-07-09 8:46 ` Sagi Grimberg
2015-07-09 13:52 ` Chuck Lever
2015-07-10 19:34 ` Christoph Hellwig
2015-07-12 7:49 ` Sagi Grimberg
2015-07-13 16:50 ` Jason Gunthorpe [this message]
2015-07-14 8:06 ` Sagi Grimberg
[not found] ` <55A4C2FA.9060707-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-14 12:24 ` Tom Talpey
[not found] ` <55A4FF93.4090406-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2015-07-14 13:21 ` Sagi Grimberg
2015-07-23 0:43 ` Hefty, Sean
2015-07-08 19:08 ` Jason Gunthorpe
[not found] ` <20150708190842.GB11740-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-08 20:32 ` 'Christoph Hellwig'
[not found] ` <20150708203205.GA21847-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-08 20:37 ` 'Christoph Hellwig'
2015-07-09 8:47 ` Sagi Grimberg
2015-07-09 0:03 ` Jason Gunthorpe
[not found] ` <20150709000337.GE16812-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-09 8:00 ` 'Christoph Hellwig'
2015-07-09 8:58 ` Sagi Grimberg
2015-07-09 22:18 ` Doug Ledford
2015-07-09 22:53 ` Jason Gunthorpe
2015-07-10 13:22 ` Tom Talpey
[not found] ` <559FC710.1050307-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2015-07-10 16:11 ` Jason Gunthorpe
2015-07-10 17:56 ` Doug Ledford
2015-07-10 18:34 ` Chuck Lever
2015-07-10 18:42 ` Tom Talpey
[not found] ` <55A01225.9000000-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2015-07-10 19:54 ` Jason Gunthorpe
2015-07-10 20:48 ` Jason Gunthorpe
[not found] ` <20150710195420.GA31500-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-10 22:33 ` Doug Ledford
2015-07-11 10:17 ` 'Christoph Hellwig'
[not found] ` <20150711101736.GA14741-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-13 16:57 ` Jason Gunthorpe
2015-07-14 7:25 ` 'Christoph Hellwig'
2015-07-14 9:05 ` Sagi Grimberg
2015-07-14 15:35 ` 'Christoph Hellwig'
2015-07-14 17:26 ` Jason Gunthorpe
[not found] ` <20150714172655.GB24403-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-15 7:10 ` Sagi Grimberg
2015-07-10 22:30 ` Doug Ledford
2015-07-10 20:57 ` Jason Gunthorpe
[not found] ` <20150710205706.GA7883-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-10 22:27 ` Doug Ledford
[not found] ` <20150710233417.GA8919@obsidianresearch.com>
[not found] ` <20150710233417.GA8919-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-11 3:10 ` Doug Ledford
[not found] ` <55A0891F.4050105-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-07-13 17:18 ` Jason Gunthorpe
2015-07-13 22:23 ` Tom Talpey
2015-07-11 16:37 ` Steve Wise
[not found] ` <CCB6E837-88FF-4DBB-976D-4CF56396A1A1-/Yg/VP3ZvrM@public.gmane.org>
2015-07-12 10:46 ` Sagi Grimberg
[not found] ` <55A24571.60902-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-14 19:25 ` Steve Wise
2015-07-14 19:29 ` Jason Gunthorpe
[not found] ` <20150714192941.GA26292-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 19:32 ` Steve Wise
2015-07-14 19:37 ` Jason Gunthorpe
2015-07-14 19:55 ` 'Christoph Hellwig'
2015-07-14 20:10 ` Steve Wise
[not found] ` <20150714195511.GB7716-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-14 20:29 ` Jason Gunthorpe
2015-07-15 6:50 ` 'Christoph Hellwig'
[not found] ` <20150715065057.GA22113-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-15 19:12 ` Jason Gunthorpe
[not found] ` <20150715191257.GF23588-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-16 6:41 ` Jason Gunthorpe
2015-07-16 8:04 ` 'Christoph Hellwig'
[not found] ` <20150716080402.GC9093-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-16 16:13 ` Jason Gunthorpe
[not found] ` <20150714202943.GB26927-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 20:40 ` Steve Wise
2015-07-14 20:44 ` Jason Gunthorpe
[not found] ` <20150714204442.GD26927-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 20:54 ` Steve Wise
2015-07-14 20:59 ` Jason Gunthorpe
2015-07-14 20:50 ` Tom Talpey
2015-07-15 8:47 ` Sagi Grimberg
[not found] ` <55A61E38.20201-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-15 12:19 ` 'Christoph Hellwig'
[not found] ` <20150715121926.GB14993-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-15 19:17 ` Jason Gunthorpe
2015-07-14 20:46 ` Tom Talpey
2015-07-14 19:45 ` 'Christoph Hellwig'
[not found] ` <20150714194512.GA25887-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-14 19:57 ` Jason Gunthorpe
2015-07-14 19:58 ` Steve Wise
2015-07-14 20:41 ` Jason Gunthorpe
[not found] ` <20150714204145.GC26927-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 20:51 ` Steve Wise
2015-07-14 21:01 ` Steve Wise
2015-07-14 21:14 ` Jason Gunthorpe
2015-07-23 18:53 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373A901C9A5-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-07-23 19:03 ` Steve Wise
2015-07-23 23:30 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373A901DB80-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-07-23 23:53 ` Jason Gunthorpe
[not found] ` <20150723235310.GA20537-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-24 0:18 ` Hefty, Sean
2015-07-24 4:46 ` Jason Gunthorpe
2015-07-08 21:38 ` Tom Talpey
2015-07-08 23:36 ` Jason Gunthorpe
2015-07-09 11:02 ` Sagi Grimberg
[not found] ` <559E54AB.2010905-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-09 17:01 ` Jason Gunthorpe
2015-07-09 20:00 ` Tom Talpey
2015-07-09 21:16 ` Jason Gunthorpe
[not found] ` <20150709170142.GA21921-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-10 8:55 ` kernel memory registration (was: RDMA/core: Transport-independent access flags) Sagi Grimberg
[not found] ` <559F8881.7070308-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-10 16:35 ` Jason Gunthorpe
2015-07-11 10:31 ` 'Christoph Hellwig'
[not found] ` <20150711103153.GC14741-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-13 16:46 ` Jason Gunthorpe
[not found] ` <20150713164652.GC23832-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 8:24 ` kernel memory registration Sagi Grimberg
[not found] ` <55A4C73A.7080001-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-14 17:24 ` Jason Gunthorpe
2015-07-11 10:25 ` [PATCH V3 1/5] RDMA/core: Transport-independent access flags 'Christoph Hellwig'
2015-07-13 16:35 ` Jason Gunthorpe
2015-07-13 19:36 ` Tom Talpey
2015-07-13 20:15 ` Jason Gunthorpe
[not found] ` <20150713201538.GA11681-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-14 9:10 ` Sagi Grimberg
[not found] ` <55A4D20C.2000904-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-14 15:36 ` 'Christoph Hellwig'
[not found] ` <20150714153619.GC11026-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-14 15:47 ` Tom Talpey
2015-07-14 16:22 ` Jason Gunthorpe
2015-07-14 7:37 ` 'Christoph Hellwig'
2015-07-14 9:22 ` Sagi Grimberg
[not found] ` <55A4D4C6.6040907-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-14 12:12 ` Tom Talpey
2015-07-14 13:23 ` Sagi Grimberg
2015-07-14 14:45 ` Steve Wise
2015-07-14 15:40 ` 'Christoph Hellwig'
2015-07-08 8:11 ` 'Christoph Hellwig'
2015-07-06 7:58 ` Sagi Grimberg
[not found] ` <559A3536.3020807-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-06 14:39 ` Steve Wise
2015-07-05 23:22 ` [PATCH V3 2/5] RDMA/iser: Use transport independent MR allocation Steve Wise
[not found] ` <20150705231831.12029.80307.stgit-PBeJgSbIpn97NCTnQtmixQ@public.gmane.org>
2015-07-05 23:22 ` [PATCH V3 3/5] RDMA/isert: " Steve Wise
2015-07-05 23:22 ` [PATCH V3 4/5] svcrdma: " Steve Wise
2015-07-05 23:22 ` [PATCH V3 5/5] xprtrdma: " Steve Wise
2015-07-06 5:25 ` [PATCH V3 0/5] Transport-independent MRs Christoph Hellwig
[not found] ` <20150706052542.GB1109-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-07-06 14:24 ` Steve Wise
2015-07-07 9:01 ` 'Christoph Hellwig'
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