From: Sagi Grimberg <sagig@dev.mellanox.co.il>
To: Christoph Hellwig <hch@infradead.org>,
Chuck Lever <chuck.lever@oracle.com>
Cc: "Hefty, Sean" <sean.hefty@intel.com>,
Jason Gunthorpe <jgunthorpe@obsidianresearch.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: Sun, 12 Jul 2015 10:49:08 +0300 [thread overview]
Message-ID: <55A21BF4.7090601@dev.mellanox.co.il> (raw)
In-Reply-To: <20150710193409.GA9815@infradead.org>
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.
It seems that Lustre strives to FMRs and if it is not supported it uses
a PHYS_MR. Given FMRs has an expiration date and PHYS_MR is basically
alloc/free of MRs in the data path (which is obviously not desirable in
any form). Lustre will need to refresh their code to use the standard
FRWR.
Do we have Lustre folks listening on the mailing list?
next prev parent reply other threads:[~2015-07-12 7:49 UTC|newest]
Thread overview: 223+ 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
2015-07-06 14:23 ` Steve Wise
2015-07-07 8:58 ` 'Christoph Hellwig'
2015-07-06 7:09 ` Haggai Eran
2015-07-06 7:09 ` Haggai Eran
2015-07-06 14:29 ` Steve Wise
2015-07-06 14:29 ` Steve Wise
2015-07-07 14:17 ` Steve Wise
2015-07-07 14:17 ` Steve Wise
2015-07-07 14:34 ` Haggai Eran
2015-07-07 14:34 ` Haggai Eran
2015-07-07 14:46 ` Steve Wise
2015-07-07 14:46 ` Steve Wise
2015-07-07 15:07 ` Haggai Eran
2015-07-07 15:07 ` Haggai Eran
2015-07-06 7:53 ` Sagi Grimberg
2015-07-06 7:53 ` Sagi Grimberg
2015-07-06 14:37 ` Steve Wise
2015-07-06 14:37 ` Steve Wise
2015-07-06 16:17 ` Sagi Grimberg
2015-07-06 16:17 ` Sagi Grimberg
2015-07-06 16:55 ` Steve Wise
2015-07-06 16:55 ` Steve Wise
2015-07-07 9:00 ` Christoph Hellwig
2015-07-07 9:14 ` Sagi Grimberg
2015-07-07 9:14 ` Sagi Grimberg
2015-07-07 14:05 ` Steve Wise
2015-07-07 14:05 ` Steve Wise
2015-07-07 16:17 ` Jason Gunthorpe
2015-07-07 16:17 ` Jason Gunthorpe
2015-07-07 16:27 ` Sagi Grimberg
2015-07-07 16:27 ` Sagi Grimberg
2015-07-07 21:36 ` Jason Gunthorpe
2015-07-07 21:36 ` Jason Gunthorpe
2015-07-08 7:29 ` Sagi Grimberg
2015-07-08 8:13 ` 'Christoph Hellwig'
2015-07-08 8:13 ` 'Christoph Hellwig'
2015-07-08 10:05 ` Sagi Grimberg
2015-07-08 10:05 ` Sagi Grimberg
2015-07-08 10:20 ` 'Christoph Hellwig'
2015-07-08 10:20 ` 'Christoph Hellwig'
2015-07-08 11:08 ` Sagi Grimberg
2015-07-08 11:08 ` Sagi Grimberg
2015-07-08 17:14 ` Hefty, Sean
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 [this message]
2015-07-13 16:50 ` Jason Gunthorpe
2015-07-14 8:06 ` Sagi Grimberg
2015-07-14 12:24 ` Tom Talpey
2015-07-14 12:24 ` Tom Talpey
2015-07-14 13:21 ` Sagi Grimberg
2015-07-14 13:21 ` Sagi Grimberg
2015-07-23 0:43 ` Hefty, Sean
2015-07-23 0:43 ` Hefty, Sean
2015-07-08 19:08 ` Jason Gunthorpe
2015-07-08 20:32 ` 'Christoph Hellwig'
2015-07-08 20:32 ` 'Christoph Hellwig'
2015-07-08 20:37 ` 'Christoph Hellwig'
2015-07-08 20:37 ` 'Christoph Hellwig'
2015-07-09 0:03 ` Jason Gunthorpe
2015-07-09 8:00 ` 'Christoph Hellwig'
2015-07-09 8:00 ` 'Christoph Hellwig'
2015-07-09 8:58 ` Sagi Grimberg
2015-07-09 8:58 ` Sagi Grimberg
2015-07-09 22:18 ` Doug Ledford
2015-07-09 22:18 ` Doug Ledford
2015-07-09 22:53 ` Jason Gunthorpe
2015-07-09 22:53 ` Jason Gunthorpe
2015-07-10 13:22 ` Tom Talpey
2015-07-10 16:11 ` Jason Gunthorpe
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
2015-07-10 19:54 ` Jason Gunthorpe
2015-07-10 19:54 ` Jason Gunthorpe
2015-07-10 20:48 ` Jason Gunthorpe
2015-07-10 22:33 ` Doug Ledford
2015-07-10 22:33 ` Doug Ledford
2015-07-11 10:17 ` 'Christoph Hellwig'
2015-07-11 10:17 ` 'Christoph Hellwig'
2015-07-13 16:57 ` Jason Gunthorpe
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
2015-07-15 7:10 ` Sagi Grimberg
2015-07-15 7:10 ` Sagi Grimberg
2015-07-10 22:30 ` Doug Ledford
2015-07-10 22:30 ` Doug Ledford
2015-07-10 20:57 ` Jason Gunthorpe
2015-07-10 22:27 ` Doug Ledford
2015-07-10 22:27 ` Doug Ledford
[not found] ` <20150710233417.GA8919@obsidianresearch.com>
2015-07-11 3:10 ` Doug Ledford
2015-07-11 3:10 ` Doug Ledford
2015-07-13 17:18 ` Jason Gunthorpe
2015-07-13 17:18 ` Jason Gunthorpe
2015-07-13 22:23 ` Tom Talpey
2015-07-11 16:37 ` Steve Wise
2015-07-12 10:46 ` Sagi Grimberg
2015-07-12 10:46 ` Sagi Grimberg
2015-07-14 19:25 ` Steve Wise
2015-07-14 19:25 ` Steve Wise
2015-07-14 19:29 ` Jason Gunthorpe
2015-07-14 19:32 ` Steve Wise
2015-07-14 19:32 ` Steve Wise
2015-07-14 19:37 ` Jason Gunthorpe
2015-07-14 19:55 ` 'Christoph Hellwig'
2015-07-14 19:55 ` 'Christoph Hellwig'
2015-07-14 20:10 ` Steve Wise
2015-07-14 20:10 ` Steve Wise
2015-07-14 20:29 ` Jason Gunthorpe
2015-07-14 20:29 ` Jason Gunthorpe
2015-07-14 20:40 ` Steve Wise
2015-07-14 20:40 ` Steve Wise
2015-07-14 20:44 ` Jason Gunthorpe
2015-07-14 20:44 ` Jason Gunthorpe
2015-07-14 20:54 ` Steve Wise
2015-07-14 20:54 ` Steve Wise
2015-07-14 20:59 ` Jason Gunthorpe
2015-07-14 20:59 ` Jason Gunthorpe
2015-07-14 20:50 ` Tom Talpey
2015-07-14 20:50 ` Tom Talpey
2015-07-15 6:50 ` 'Christoph Hellwig'
2015-07-15 19:12 ` Jason Gunthorpe
2015-07-15 19:12 ` Jason Gunthorpe
2015-07-16 6:41 ` Jason Gunthorpe
2015-07-16 6:41 ` Jason Gunthorpe
2015-07-16 8:04 ` 'Christoph Hellwig'
2015-07-16 8:04 ` 'Christoph Hellwig'
2015-07-16 16:13 ` Jason Gunthorpe
2015-07-16 16:13 ` Jason Gunthorpe
2015-07-15 8:47 ` Sagi Grimberg
2015-07-15 8:47 ` Sagi Grimberg
2015-07-15 12:19 ` 'Christoph Hellwig'
2015-07-15 12:19 ` 'Christoph Hellwig'
2015-07-15 19:17 ` Jason Gunthorpe
2015-07-15 19:17 ` Jason Gunthorpe
2015-07-14 20:46 ` Tom Talpey
2015-07-14 19:45 ` 'Christoph Hellwig'
2015-07-14 19:57 ` Jason Gunthorpe
2015-07-14 19:57 ` Jason Gunthorpe
2015-07-14 19:58 ` Steve Wise
2015-07-14 19:58 ` Steve Wise
2015-07-14 20:41 ` Jason Gunthorpe
2015-07-14 20:41 ` Jason Gunthorpe
2015-07-14 20:51 ` Steve Wise
2015-07-14 20:51 ` Steve Wise
2015-07-14 21:01 ` Steve Wise
2015-07-14 21:01 ` Steve Wise
2015-07-14 21:14 ` Jason Gunthorpe
2015-07-14 21:14 ` Jason Gunthorpe
2015-07-23 18:53 ` Hefty, Sean
2015-07-23 18:53 ` Hefty, Sean
2015-07-23 19:03 ` Steve Wise
2015-07-23 19:03 ` Steve Wise
2015-07-23 23:30 ` Hefty, Sean
2015-07-23 23:30 ` Hefty, Sean
2015-07-23 23:53 ` Jason Gunthorpe
2015-07-23 23:53 ` Jason Gunthorpe
2015-07-24 0:18 ` Hefty, Sean
2015-07-24 0:18 ` Hefty, Sean
2015-07-24 4:46 ` Jason Gunthorpe
2015-07-09 8:47 ` Sagi Grimberg
2015-07-09 8:47 ` Sagi Grimberg
2015-07-08 21:38 ` Tom Talpey
2015-07-08 23:36 ` Jason Gunthorpe
2015-07-09 11:02 ` Sagi Grimberg
2015-07-09 17:01 ` Jason Gunthorpe
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
2015-07-14 9:10 ` Sagi Grimberg
2015-07-14 9:10 ` Sagi Grimberg
2015-07-14 15:36 ` 'Christoph Hellwig'
2015-07-14 15:36 ` 'Christoph Hellwig'
2015-07-14 15:47 ` Tom Talpey
2015-07-14 15:47 ` Tom Talpey
2015-07-14 16:22 ` Jason Gunthorpe
2015-07-14 16:22 ` Jason Gunthorpe
2015-07-14 7:37 ` 'Christoph Hellwig'
2015-07-14 9:22 ` Sagi Grimberg
2015-07-14 12:12 ` Tom Talpey
2015-07-14 12:12 ` Tom Talpey
2015-07-14 13:23 ` Sagi Grimberg
2015-07-14 14:45 ` Steve Wise
2015-07-14 14:45 ` Steve Wise
2015-07-14 15:40 ` 'Christoph Hellwig'
2015-07-14 15:40 ` 'Christoph Hellwig'
2015-07-08 8:11 ` 'Christoph Hellwig'
2015-07-06 7:58 ` Sagi Grimberg
2015-07-06 7:58 ` Sagi Grimberg
2015-07-06 14:39 ` Steve Wise
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
2015-07-05 23:22 ` [PATCH V3 3/5] RDMA/isert: " Steve Wise
2015-07-05 23:22 ` Steve Wise
2015-07-05 23:22 ` [PATCH V3 4/5] svcrdma: " Steve Wise
2015-07-05 23:22 ` Steve Wise
2015-07-05 23:22 ` [PATCH V3 5/5] xprtrdma: " Steve Wise
2015-07-05 23:22 ` Steve Wise
2015-07-06 5:25 ` [PATCH V3 0/5] Transport-independent MRs Christoph Hellwig
2015-07-06 5:25 ` Christoph Hellwig
2015-07-06 14:24 ` Steve Wise
2015-07-06 14:24 ` Steve Wise
2015-07-07 9:01 ` 'Christoph Hellwig'
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