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From: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
To: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Cc: "dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org"
	<sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	"swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org"
	<swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"target-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<target-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH v4 7/9] IB/core: generic RDMA READ/WRITE API
Date: Thu, 10 Mar 2016 09:00:00 -0800	[thread overview]
Message-ID: <56E1A810.1080001@sandisk.com> (raw)
In-Reply-To: <20160310162150.GA9544-jcswGhMUV9g@public.gmane.org>

On 03/10/2016 08:21 AM, Christoph Hellwig wrote:
> I see the use case for enabling MRs for debugging, but I still don't
> think the ULP is the right place.  I also don't see where you
> cna do this currently: for srpt, the only driver converted in this
> series there is no support for registrations at all currently,
> and with the the series you can force it to register with a one
> line code change in rdma_rw_use_mr.  For iSERt, which I plan to
> convert for 4.7 (and which has some WIP code in git) MR support
> exists, but is only enabled if the device supports the vendor
> specific signature handover extension (aka if running on mlx5 hardware).
> With the future conversion you'll still have a simply compile time
> switch to always enabled it, and I'd be fine with adding a module
> parameter to force it as well.

Hello Christoph,

Had you already noticed the ib_srp register_always kernel module parameter?

Thanks,

Bart.
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  parent reply	other threads:[~2016-03-10 17:00 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-08 18:16 generic RDMA READ/WRITE API V4 Christoph Hellwig
2016-03-08 18:16 ` [PATCH v4 1/9] IB/cma: pass the port number to ib_create_qp Christoph Hellwig
2016-03-08 19:25   ` Bart Van Assche
2016-03-08 19:27   ` Leon Romanovsky
     [not found]     ` <20160308192709.GJ13396-2ukJVAZIZ/Y@public.gmane.org>
2016-03-08 19:38       ` Steve Wise
2016-03-08 19:55         ` Leon Romanovsky
2016-03-09 13:58           ` 'Christoph Hellwig'
     [not found]             ` <20160309135804.GA32315-jcswGhMUV9g@public.gmane.org>
2016-03-09 14:43               ` Leon Romanovsky
2016-03-09 15:51               ` Steve Wise
2016-03-09 15:52                 ` 'Christoph Hellwig'
2016-03-08 18:16 ` [PATCH v4 2/9] IB/core: allow passing mapping an offset into the SG in ib_map_mr_sg Christoph Hellwig
2016-03-08 19:27   ` Bart Van Assche
2016-03-08 18:16 ` [PATCH v4 3/9] IB/core: add a helper to check for READ WITH INVALIDATE support Christoph Hellwig
2016-03-08 18:16 ` [PATCH v4 4/9] IB/core: refactor ib_create_qp Christoph Hellwig
2016-03-08 19:33   ` Bart Van Assche
     [not found]     ` <56DF2917.309-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-09 12:55       ` Christoph Hellwig
2016-03-08 18:16 ` [PATCH v4 5/9] IB/core: add a simple MR pool Christoph Hellwig
     [not found]   ` <1457461000-24088-6-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-03-08 19:37     ` Bart Van Assche
2016-03-09 12:56       ` Christoph Hellwig
     [not found] ` <1457461000-24088-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-03-08 18:16   ` [PATCH v4 6/9] IB/core: add a need_inval flag to struct ib_mr Christoph Hellwig
2016-03-08 19:41     ` Bart Van Assche
2016-03-08 18:16   ` [PATCH v4 7/9] IB/core: generic RDMA READ/WRITE API Christoph Hellwig
2016-03-08 21:32     ` Bart Van Assche
2016-03-09 13:07       ` Christoph Hellwig
2016-03-09 15:54         ` Christoph Hellwig
2016-03-09 18:55           ` Bart Van Assche
2016-03-10  7:57             ` Christoph Hellwig
2016-03-10 15:30               ` Bart Van Assche
     [not found]                 ` <56E1931C.1040206-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-10 16:21                   ` Christoph Hellwig
     [not found]                     ` <20160310162150.GA9544-jcswGhMUV9g@public.gmane.org>
2016-03-10 17:00                       ` Bart Van Assche [this message]
     [not found]                         ` <56E1A810.1080001-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-10 17:01                           ` Christoph Hellwig
2016-03-11 22:39                       ` Bart Van Assche
     [not found]                         ` <56E34914.2020108-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-12  6:12                           ` Christoph Hellwig
     [not found]                             ` <20160312061232.GA15236-jcswGhMUV9g@public.gmane.org>
2016-03-14  1:04                               ` Bart Van Assche
     [not found]                                 ` <56E60E0F.7060900-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-15  8:45                                   ` Christoph Hellwig
     [not found]           ` <20160309155457.GA1898-jcswGhMUV9g@public.gmane.org>
2016-03-11  1:26             ` Bart Van Assche
2016-03-11  9:22               ` Christoph Hellwig
2016-03-08 18:16   ` [PATCH v4 8/9] target: enhance and export target_alloc_sgl/target_free_sgl Christoph Hellwig
2016-03-08 21:37     ` Bart Van Assche
2016-03-08 18:16 ` [PATCH v4 9/9] IB/srpt: convert to the generic RDMA READ/WRITE API Christoph Hellwig
2016-03-08 20:13   ` Leon Romanovsky
2016-03-09 12:59     ` Christoph Hellwig
2016-03-10 22:08       ` Bart Van Assche
2016-03-11  9:09         ` Christoph Hellwig
     [not found]   ` <1457461000-24088-10-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-03-10 22:40     ` Bart Van Assche
     [not found]       ` <56E1F7C8.9000101-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-03-11  9:14         ` Christoph Hellwig

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