From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Robert Pearson
<rpearson-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>
Cc: 'Roland Dreier' <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
'frank zago'
<fzago-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
'John Groves'
<john-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>
Subject: Re: [Announce] rxe dev tree available (soft RDMAoE)
Date: Thu, 17 Dec 2009 16:30:25 -0700 [thread overview]
Message-ID: <20091217233025.GB8383@obsidianresearch.com> (raw)
In-Reply-To: <040501ca7f6c$b9099950$2b1ccbf0$@com>
On Thu, Dec 17, 2009 at 05:00:26PM -0600, Robert Pearson wrote:
> Of course we need to interoperate with ConnectX-en and it, as far as I know,
> only knows how to compute the VCRC as though the packet was going to get
> sent to IB including a phantom 12 byte LRH that is filled with 1's without
> any way to turn it off. It is also a requirement that UD work well too.
> Instead of connection setup if we could get a capability bit in a port info
> record we could handle the general case.
There is no IB management layer (so no port info record) for RDMAoE..
Another good choice might be to not use IPv6 ND and include a
capabilities struct of some sort in a RDMAoE specific ND packet, and,
say, define GRH.nextHeader = 0x2B as meaning 'BTH with no ICRC'
Jason
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next prev parent reply other threads:[~2009-12-17 23:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-16 21:06 [Announce] rxe dev tree available (soft RDMAoE) frank zago
[not found] ` <4B294BDD.3010405-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>
2009-12-16 21:38 ` Jason Gunthorpe
[not found] ` <20091216213816.GV6188-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-16 21:46 ` Robert Pearson
2009-12-16 22:20 ` Sean Hefty
[not found] ` <7FFE592E129646A2B0DB5AC99D0261C7-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2009-12-16 22:36 ` Robert Pearson
2009-12-16 23:53 ` Roland Dreier
[not found] ` <adafx7a79xh.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2009-12-17 1:32 ` Dave Olson
2009-12-17 17:36 ` Robert Pearson
2009-12-17 21:25 ` Roland Dreier
[not found] ` <adazl5h47ix.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2009-12-17 21:43 ` Robert Pearson
2009-12-17 21:56 ` Roland Dreier
2009-12-17 22:04 ` Jason Gunthorpe
[not found] ` <20091217220450.GA8383-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2009-12-17 23:00 ` Robert Pearson
2009-12-17 23:30 ` Jason Gunthorpe [this message]
2009-12-17 23:35 ` Roland Dreier
2009-12-17 23:46 ` Roland Dreier
2009-12-17 23:17 ` Robert Pearson
2009-12-17 23:10 ` Robert Pearson
2009-12-17 0:19 ` Woodruff, Robert J
[not found] ` <382A478CAD40FA4FB46605CF81FE39F4431FB84A-osO9UTpF0URzLByeVOV5+bfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2009-12-17 0:59 ` fzago-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5
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