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From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "Hefty, Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH v4 4/9] rdma/cm: Update port reservation to support AF_IB
Date: Wed, 13 Feb 2013 11:26:12 -0700	[thread overview]
Message-ID: <20130213182612.GA11812@obsidianresearch.com> (raw)
In-Reply-To: <1828884A29C6694DAF28B7E6B8A8237368B9A432-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>

On Wed, Feb 13, 2013 at 06:19:51PM +0000, Hefty, Sean wrote:
> > Sean, I've lost track of all this over time, but just to check in,
> > with this new interface, would it be possible to obsolete ib_ucm? That
> > seems desirable to me, as it is so flawed..
> 
> I'd love to obsolete ib_ucm.  This interface should make it
> possible, though some additional implementation would be needed
> (e.g. for automatic path migration).

Okay - but there are some nice gaps in the API to cleanly place such
things in future?

A long time ago we discussed having different paths for CM GMP,
inbound data and outbound data (ie the full IB asymetric pathing
model), did that get included in the API as well?

> I have an immediate need to connect using native IB addresses.  So
> without this, I'll be forced to use ib_ucm or roll a new user space
> CM.

Using ucm is alot of trouble. Many sites don't have it setup properly,
don't have proper device node permissions and the issue with unique
IDs ends up being critical..

Jason
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  parent reply	other threads:[~2013-02-13 18:26 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-22 21:56 [PATCH v4 0/9] rdma/cm: Add support for native Infiniband addressing sean.hefty-ral2JQCrhuEAvxtiuMwx3w
     [not found] ` <1358891797-14625-1-git-send-email-sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2013-01-22 21:56   ` [PATCH v4 1/9] rdma/cm: define native IB address sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-02-11 18:02     ` Hefty, Sean
2013-02-13 12:51       ` Or Gerlitz
     [not found]       ` <1828884A29C6694DAF28B7E6B8A8237368B99D59-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-03-01  3:49         ` Hefty, Sean
     [not found]           ` <1828884A29C6694DAF28B7E6B8A823736F35600F-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-03-06 15:40             ` Qperf and APM Suresh Shelvapille
     [not found]               ` <82EBBE0B04D4427381C29144BE078F2B-+IkoAhRkys/CbFgIbBqbbjGjJy/sRE9J@public.gmane.org>
2013-03-06 18:51                 ` Luick, Dean
     [not found]                   ` <4AF12E8016D2BF46BCDFCE8FAA77A3580394D479-96pTJSsuoYQd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-03-06 18:59                     ` Suresh Shelvapille
     [not found]                       ` <58D79FF01489431AB6D87CD4977F2E45-+IkoAhRkys/CbFgIbBqbbjGjJy/sRE9J@public.gmane.org>
2013-03-06 20:56                         ` Luick, Dean
     [not found]                           ` <4AF12E8016D2BF46BCDFCE8FAA77A3580394D4FB-96pTJSsuoYQd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-03-06 22:24                             ` Suresh Shelvapille
     [not found]                               ` <8AF67C8E913E4EE49D65CABA83E3DEBF-+IkoAhRkys/CbFgIbBqbbjGjJy/sRE9J@public.gmane.org>
2013-03-13 22:25                                 ` Luick, Dean
     [not found]                                   ` <4AF12E8016D2BF46BCDFCE8FAA77A3580394F46B-96pTJSsuoYQd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-03-13 22:43                                     ` Suresh Shelvapille
2013-02-13 12:56     ` [PATCH v4 1/9] rdma/cm: define native IB address Or Gerlitz
2013-02-13 12:56       ` Or Gerlitz
2013-01-22 21:56   ` [PATCH v4 2/9] rdma/cm: Include AF_IB in loopback and any address checks sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-01-22 21:56   ` [PATCH v4 4/9] rdma/cm: Update port reservation to support AF_IB sean.hefty-ral2JQCrhuEAvxtiuMwx3w
     [not found]     ` <1358891797-14625-5-git-send-email-sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2013-02-13 11:09       ` Or Gerlitz
2013-02-13 11:09         ` Or Gerlitz
     [not found]         ` <511B7474.3040201-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-02-13 17:44           ` Hefty, Sean
2013-02-13 18:10             ` Jason Gunthorpe
2013-02-13 18:19               ` Hefty, Sean
     [not found]                 ` <1828884A29C6694DAF28B7E6B8A8237368B9A432-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-02-13 18:26                   ` Jason Gunthorpe [this message]
2013-02-13 18:37                     ` Hefty, Sean
2013-01-22 21:56   ` [PATCH v4 6/9] rdma/cm: Do not modify sa_family when setting loopback address sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-01-22 21:56   ` [PATCH v4 7/9] rdma/cm: Add helper functions to return id address information sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-02-13 12:44     ` Or Gerlitz
2013-02-13 12:44       ` Or Gerlitz
2013-01-22 21:56   ` [PATCH v4 8/9] rdma/cm: Restrict AF_IB loopback to binding to IB devices only sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-01-22 21:56   ` [PATCH v4 9/9] rdma/cm: Verify that source and dest sa_family are the same sean.hefty-ral2JQCrhuEAvxtiuMwx3w
2013-01-22 21:56 ` [PATCH v4 3/9] ib/addr: Add AF_IB support to ip_addr_size sean.hefty
2013-01-22 21:56 ` [PATCH v4 5/9] rdma/cm: Allow user to specify AF_IB when binding sean.hefty

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