From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "Hefty, Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Liran Liss <liranl-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Tom Talpey <tom-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>,
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Steve Wise
<swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>,
'Leon Romanovsky' <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
'Steve Wise' <swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>,
"Marciniszyn,
Mike" <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Dalessandro,
Dennis"
<dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
'Lijun Ou' <oulijun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
"'Wei Hu(Xavier)'"
<xavier.huwei-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
"Latif,
Faisal" <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
'Selvin Xavier'
<selvin.xavier-1wcpHE2jlwO1Z/+hSey0Gg@public.gmane.org>,
'Devesh Sharma'
<devesh.sharma-1wcpHE2jlwO1Z/+hSey0Gg@public.gmane.org>,
'Mitesh Ahuja'
<mitesh.ahuja-1wcpHE2jlwO1Z/+hSey0Gg@public.gmane.org>,
'Christian Benvenuti'
<benve-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
'Dave Goodell' <dgoodell-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
Moni
Subject: Re: [PATCH rdma-next 01/10] IB/core: Add raw packet protocol
Date: Wed, 30 Nov 2016 11:34:36 -0700 [thread overview]
Message-ID: <20161130183436.GA10057@obsidianresearch.com> (raw)
In-Reply-To: <1828884A29C6694DAF28B7E6B8A82373AB0BA20F-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
On Wed, Nov 30, 2016 at 06:17:34PM +0000, Hefty, Sean wrote:
> > > Maybe the solution is to make the protocol selection explicit
> > > throughout the APIs and associate it with a QP, rather than
> > > attempting to list all transport protocols that a port can support.
> >
> > AH's are linked to a PD, not a QP..
>
> But protocols are associated with QPs. I'm not sure *why* an AH is
> linked to a PD. Conceptually the association seems unnecessary.
The AH has to be linked to the PD because the PD specifies the
hardware target and the AH is a hardware object. All objects must be
traced back to a PD. It is linked to a PD not a QP because the AH can
be shared across all QPs, which is useful for UD applications..
The AH is really similar to the ethernet layer in an IP stack, and the QP
is akin the TCP layer.
Jason
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next prev parent reply other threads:[~2016-11-30 18:34 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-27 14:51 [PATCH rdma-next 00/10] Support RAW Ethernet when RoCE is disabled Leon Romanovsky
[not found] ` <1480258296-27032-1-git-send-email-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2016-11-27 14:51 ` [PATCH rdma-next 01/10] IB/core: Add raw packet protocol Leon Romanovsky
[not found] ` <1480258296-27032-2-git-send-email-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2016-11-28 17:00 ` Jason Gunthorpe
[not found] ` <20161128170056.GC28381-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-28 17:08 ` Steve Wise
2016-11-30 2:07 ` Doug Ledford
[not found] ` <cfdf28c6-4715-28d4-7da6-453fb6794c29-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-11-30 2:33 ` Tom Talpey
[not found] ` <5927e04b-42ec-52c1-88a3-456cc4409334-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2016-11-30 16:18 ` Doug Ledford
2016-11-30 16:30 ` Liran Liss
[not found] ` <HE1PR0501MB28124286F8D902C49596EF85B18C0-692Kmc8YnlIVrnpjwTCbp8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-11-30 16:39 ` Jason Gunthorpe
[not found] ` <20161130163949.GC24639-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-30 16:59 ` Or Gerlitz
2016-11-30 17:01 ` Liran Liss
[not found] ` <HE1PR0501MB28128CDB112558C5980CB638B18C0-692Kmc8YnlIVrnpjwTCbp8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-11-30 17:08 ` Jason Gunthorpe
[not found] ` <20161130170830.GA17512-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-30 17:25 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BA190-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-11-30 17:27 ` Steve Wise
2016-11-30 17:30 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BA1B7-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-12-01 13:06 ` Tom Talpey
[not found] ` <d4bab4a9-aa32-282f-b501-ecfc00b0be0f-CLs1Zie5N5HQT0dZR+AlfA@public.gmane.org>
2016-12-01 19:07 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BA68E-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-12-04 20:38 ` Liran Liss
[not found] ` <HE1PR0501MB2812393A0A690DEC1E03DE3FB1800-692Kmc8YnlIVrnpjwTCbp8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-12-05 17:10 ` Jason Gunthorpe
[not found] ` <20161205171013.GA27784-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-12-05 20:14 ` Liran Liss
[not found] ` <HE1PR0501MB2812A66403A8C19AF83742EDB1830-692Kmc8YnlIVrnpjwTCbp8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-12-06 21:26 ` Or Gerlitz
[not found] ` <CAJ3xEMhYs0jtXYDqAXEw17Fk4padG903J3enL+uNPg_fNk-9Uw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-12-06 21:39 ` Jason Gunthorpe
[not found] ` <20161206213938.GC647-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-12-06 22:13 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BBEC7-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-12-07 22:06 ` Doug Ledford
[not found] ` <d7bca935-32cb-51ee-beea-724e1a5b748a-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-12-07 22:40 ` Jason Gunthorpe
[not found] ` <20161207224044.GA23093-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-12-08 9:29 ` Liran Liss
[not found] ` <HE1PR0501MB28127FEFC67D9F71BF14BB6CB1840-692Kmc8YnlIVrnpjwTCbp8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2016-12-08 17:41 ` Jason Gunthorpe
2016-11-30 17:32 ` Jason Gunthorpe
[not found] ` <20161130173211.GA9067-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-30 18:17 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BA20F-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-11-30 18:34 ` Jason Gunthorpe [this message]
[not found] ` <20161130183436.GA10057-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-30 18:46 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A82373AB0BA24D-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-11-30 18:58 ` Jason Gunthorpe
2016-11-30 16:29 ` Hefty, Sean
2016-11-30 16:36 ` Jason Gunthorpe
[not found] ` <20161130163621.GB24639-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-30 19:35 ` Doug Ledford
[not found] ` <0f905c52-b167-4b7d-4fd0-091056997e47-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-11-30 21:12 ` Hefty, Sean
2016-11-28 20:57 ` Or Gerlitz
[not found] ` <CAJ3xEMiv6HCu-9fi12XtafxYWu-+gNPMbnfb-A4-+FrgR6KZNA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-28 22:25 ` Jason Gunthorpe
[not found] ` <20161128222559.GB744-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-11-29 6:35 ` Or Gerlitz
[not found] ` <CAJ3xEMiC3UDujgSL5fwP7ee1=OjhorZ2aeB1k+ptGb9GWaUVkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-29 16:19 ` Jason Gunthorpe
2016-11-27 14:51 ` [PATCH rdma-next 02/10] IB/mlx5: Support " Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 03/10] IB/mlx4: " Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 04/10] IB: Add protocol for USNIC Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 05/10] IB: Query port through the core instead of directly calling the driver handler Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 06/10] IB/core: Enable to query QP types supported by IB device on a port Leon Romanovsky
[not found] ` <1480258296-27032-7-git-send-email-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2016-12-16 20:11 ` ira.weiny
[not found] ` <20161216201158.GE12582-W4f6Xiosr+yv7QzWx2u06xL4W9x8LtSr@public.gmane.org>
2016-12-18 7:37 ` Leon Romanovsky
2016-12-18 21:07 ` Or Gerlitz
2016-11-27 14:51 ` [PATCH rdma-next 07/10] IB/uverbs: Propagate supported QP types to user-space Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 08/10] IB/mlx5: Refactor registration to netdev notifier Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 09/10] IB/mlx5: Rename RoCE related helpers to reflect being Eth ones Leon Romanovsky
2016-11-27 14:51 ` [PATCH rdma-next 10/10] IB/mlx5: Support RAW Ethernet when RoCE is disabled Leon Romanovsky
2016-12-14 19:06 ` [PATCH rdma-next 00/10] " Doug Ledford
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