From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Tom Talpey <tom@talpey.com>, Chuck Lever <chuck.lever@oracle.com>,
linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org,
Sagi Grimberg <sagig@mellanox.com>,
santosh.shilimkar@oracle.com
Subject: Re: Future of FMR support, was: Re: [PATCH v1 5/9] xprtrdma: Add ro_unmap_sync method for FMR
Date: Tue, 24 Nov 2015 00:12:15 -0700 [thread overview]
Message-ID: <20151124071215.GC23597@obsidianresearch.com> (raw)
In-Reply-To: <20151124065225.GB29141@infradead.org>
On Mon, Nov 23, 2015 at 10:52:26PM -0800, Christoph Hellwig wrote:
>
> So at lest for 4.5 we're unlikely to be able to get rid of it alone
> due to the RDS issue. We'll then need performance numbers for mlx4,
> and figure out how much we care about mthca.
mthca is unfortunately very popular in the used market, it is very
easy to get cards, build a cheap test cluster, etc. :(
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Tom Talpey <tom-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>,
Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
santosh.shilimkar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org
Subject: Re: Future of FMR support, was: Re: [PATCH v1 5/9] xprtrdma: Add ro_unmap_sync method for FMR
Date: Tue, 24 Nov 2015 00:12:15 -0700 [thread overview]
Message-ID: <20151124071215.GC23597@obsidianresearch.com> (raw)
In-Reply-To: <20151124065225.GB29141-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
On Mon, Nov 23, 2015 at 10:52:26PM -0800, Christoph Hellwig wrote:
>
> So at lest for 4.5 we're unlikely to be able to get rid of it alone
> due to the RDS issue. We'll then need performance numbers for mlx4,
> and figure out how much we care about mthca.
mthca is unfortunately very popular in the used market, it is very
easy to get cards, build a cheap test cluster, etc. :(
Jason
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next prev parent reply other threads:[~2015-11-24 7:12 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-23 22:13 [PATCH v1 0/9] NFS/RDMA client patches for 4.5 Chuck Lever
2015-11-23 22:13 ` Chuck Lever
2015-11-23 22:13 ` [PATCH v1 1/9] xprtrdma: Add a safety margin for receive buffers Chuck Lever
2015-11-23 22:13 ` Chuck Lever
2015-11-24 0:55 ` Tom Talpey
2015-11-24 0:55 ` Tom Talpey
2015-11-24 1:16 ` Chuck Lever
2015-11-24 1:16 ` Chuck Lever
2015-11-24 1:22 ` Tom Talpey
2015-11-24 1:22 ` Tom Talpey
2015-11-24 1:44 ` Chuck Lever
2015-11-24 1:44 ` Chuck Lever
2015-11-23 22:14 ` [PATCH v1 2/9] xprtrdma: Move struct ib_send_wr off the stack Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-23 22:14 ` [PATCH v1 3/9] xprtrdma: Introduce ro_unmap_sync method Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-24 6:45 ` Christoph Hellwig
2015-11-24 6:45 ` Christoph Hellwig
2015-11-24 7:28 ` Jason Gunthorpe
2015-11-24 7:28 ` Jason Gunthorpe
2015-11-24 10:59 ` Sagi Grimberg
2015-11-24 10:59 ` Sagi Grimberg
2015-11-24 13:43 ` Tom Talpey
2015-11-24 13:43 ` Tom Talpey
2015-11-24 14:40 ` Sagi Grimberg
2015-11-24 14:40 ` Sagi Grimberg
2015-11-24 14:39 ` Chuck Lever
2015-11-24 14:39 ` Chuck Lever
2015-11-24 14:44 ` Sagi Grimberg
2015-11-24 14:44 ` Sagi Grimberg
2015-11-24 15:20 ` Chuck Lever
2015-11-24 15:20 ` Chuck Lever
2015-11-24 18:57 ` Jason Gunthorpe
2015-11-24 18:57 ` Jason Gunthorpe
2015-11-23 22:14 ` [PATCH v1 4/9] xprtrdma: Add ro_unmap_sync method for FRWR Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-23 22:14 ` [PATCH v1 5/9] xprtrdma: Add ro_unmap_sync method for FMR Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-24 0:57 ` Tom Talpey
2015-11-24 0:57 ` Tom Talpey
2015-11-24 6:52 ` Future of FMR support, was: " Christoph Hellwig
2015-11-24 6:52 ` Christoph Hellwig
2015-11-24 7:12 ` Jason Gunthorpe [this message]
2015-11-24 7:12 ` Jason Gunthorpe
2015-12-01 15:33 ` Chuck Lever
2015-12-01 15:33 ` Chuck Lever
2015-12-02 12:27 ` Christoph Hellwig
2015-12-02 12:27 ` Christoph Hellwig
2015-11-24 12:36 ` Tom Talpey
2015-11-24 12:36 ` Tom Talpey
2015-11-24 21:54 ` santosh shilimkar
2015-11-24 21:54 ` santosh shilimkar
2015-11-25 9:00 ` Christoph Hellwig
2015-11-25 9:00 ` Christoph Hellwig
2015-11-25 17:09 ` santosh shilimkar
2015-11-25 17:09 ` santosh shilimkar
2015-11-25 18:22 ` Or Gerlitz
2015-11-25 18:22 ` Or Gerlitz
2015-11-25 19:17 ` santosh shilimkar
2015-11-25 19:17 ` santosh shilimkar
2015-11-25 19:28 ` Jason Gunthorpe
2015-11-25 19:28 ` Jason Gunthorpe
2015-11-26 10:01 ` Sagi Grimberg
2015-11-26 10:01 ` Sagi Grimberg
2015-11-23 22:14 ` [PATCH v1 6/9] xprtrdma: Add ro_unmap_sync method for all-physical registration Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-23 22:14 ` [PATCH v1 7/9] SUNRPC: Introduct xprt_commit_rqst() Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-24 19:54 ` Anna Schumaker
2015-11-24 19:54 ` Anna Schumaker
2015-11-24 19:56 ` Chuck Lever
2015-11-24 19:56 ` Chuck Lever
2015-11-23 22:14 ` [PATCH v1 8/9] xprtrdma: Invalidate in the RPC reply handler Chuck Lever
2015-11-23 22:14 ` Chuck Lever
2015-11-24 1:01 ` Tom Talpey
2015-11-24 1:01 ` Tom Talpey
2015-11-23 22:15 ` [PATCH v1 9/9] xprtrdma: Revert commit e7104a2a9606 ('xprtrdma: Cap req_cqinit') Chuck Lever
2015-11-23 22:15 ` Chuck Lever
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