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From: Michael Wang <yun.wang@profitbricks.com>
To: Doug Ledford <dledford@redhat.com>
Cc: "Hefty, Sean" <sean.hefty@intel.com>,
	Roland Dreier <roland@kernel.org>,
	Hal Rosenstock <hal@dev.mellanox.co.il>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	Or Gerlitz <ogerlitz@mellanox.com>,
	"Weiny, Ira" <ira.weiny@intel.com>,
	Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Subject: Re: [PATCH RFC] Documentation/infiniband: Add docs for rdma-helpers
Date: Fri, 15 May 2015 17:02:57 +0200	[thread overview]
Message-ID: <55560AA1.9040901@profitbricks.com> (raw)
In-Reply-To: <1431700819.27722.15.camel@redhat.com>



On 05/15/2015 04:40 PM, Doug Ledford wrote:
[snip]
> 
> The test itself doesn't mean that.  It means we need a RoCE address
> (it's true when transport is IB and link layer is Ethernet).  That we
> *use* it during connectionless communication because we have to generate
> our own address vector for the packet while during connected queue pair
> use the address vector is created by the card using the queue pair
> information is just the circumstance of its use.  And even though a
> disconnected queue pair isn't solidly connected to a remote endpoint, it
> is solidly bound to an adapter that requires either an IB or Ethernet
> address family.  Maybe this to resolve your issue with the wording:

Thanks for the explain :-) The term 'connectionless' still sounds a little
strange to me when it's just means no HW support on creating address vector,
but I can understand the concept.

> 
> This helper is true when the address family of this queue pair is of the
> Ethernet (RoCE) variety.

Sounds good, will be merged in next version :-)

Regards,
Michael Wang

> 
> 

  reply	other threads:[~2015-05-15 15:03 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-13 13:24 [PATCH RFC] Documentation/infiniband: Add docs for rdma-helpers Michael Wang
2015-05-13 15:11 ` Doug Ledford
2015-05-13 16:42   ` Hefty, Sean
2015-05-15  8:31     ` Michael Wang
2015-05-15 14:40       ` Doug Ledford
2015-05-15 15:02         ` Michael Wang [this message]
2015-05-15  8:12   ` Michael Wang
2015-05-15 14:27     ` Doug Ledford
2015-05-15 14:38       ` Michael Wang
2015-05-13 15:59 ` Jason Gunthorpe
2015-05-15  7:51   ` Michael Wang

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