From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Vasiliy Tolstov <v.tolstov-+9FY0jupvH6HXe+LvDLADg@public.gmane.org>
Cc: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: dedicated list for rdma userspace programming
Date: Mon, 24 Apr 2017 12:31:37 -0600 [thread overview]
Message-ID: <20170424183137.GA27506@obsidianresearch.com> (raw)
In-Reply-To: <CACaajQvf4fioVGoYqJexhOAbNFJPK0aYGbFW+52z3NFU9RKQcA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Mon, Apr 24, 2017 at 09:26:17PM +0300, Vasiliy Tolstov wrote:
> 2017-04-24 21:13 GMT+03:00 Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>:
> > Yes, if performance is not critical to you.
> > Otherwise, the best solution will be to take a look on implementation
> > of data transfer (various post_send functions) in rdma-core library.
>
>
> Hm.. performance is critical for me... How can i create binding for it
> without C deps.
You would have to re-write the user space verbs provider for your
hardware in a non-C language.
What you are asking is enormously non-trivial, rdma is 'special'
because it has a user space driver component that directly
communicates with the hardware, for performance.
I'm not even sure one could implement a non-performant verbs using
just the kernel API without a driver specific helper. The kernel API
does not cover things like CQ parsing, for instance? At least nobody
has ever done it...
Jason
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next prev parent reply other threads:[~2017-04-24 18:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-24 9:58 dedicated list for rdma userspace programming Vasiliy Tolstov
[not found] ` <CACaajQu1jvvCYJk82_oGOGH7jbjXzbkw_YoggqvW7TZhXj4VBw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 10:42 ` Leon Romanovsky
[not found] ` <20170424104259.GH14088-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-24 11:07 ` Vasiliy Tolstov
[not found] ` <CACaajQu9y2HawOjeuwjYSHeFmYfhWreQORB5_61nPiEspoQ2JA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 11:47 ` Leon Romanovsky
[not found] ` <20170424114733.GI14088-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-24 11:58 ` Vasiliy Tolstov
[not found] ` <CACaajQs=04be-QDFgqjXj4u=qp4wC6KFU8y5g=kR7vkV0QkbdQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 12:34 ` Leon Romanovsky
[not found] ` <20170424123413.GJ14088-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-24 12:45 ` Vasiliy Tolstov
[not found] ` <CACaajQueUDeiqb0jyPPT-OFL=sgEn=apffC2SpLFZR2pbi04fg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 18:13 ` Leon Romanovsky
[not found] ` <20170424181351.GM14088-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-04-24 18:26 ` Vasiliy Tolstov
[not found] ` <CACaajQvf4fioVGoYqJexhOAbNFJPK0aYGbFW+52z3NFU9RKQcA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 18:31 ` Jason Gunthorpe [this message]
[not found] ` <20170424183137.GA27506-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-04-24 19:49 ` Vasiliy Tolstov
[not found] ` <CACaajQt8WZrCWXN5-JGovCcknwV9TKiy5gntzNmTjpmdxf6PJg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-24 20:10 ` Jason Gunthorpe
[not found] ` <20170424201033.GA28656-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-04-25 11:29 ` Vasiliy Tolstov
[not found] ` <CACaajQsMdNt++M=DStZ+27km04xNRRxpbcrSGS9av_qtUgPJHA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-25 17:13 ` Hefty, Sean
2017-04-25 17:39 ` Jason Gunthorpe
[not found] ` <20170425173912.GA6242-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-04-25 20:41 ` Vasiliy Tolstov
2017-04-25 17:56 ` Leon Romanovsky
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