From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "Weiny, Ira" <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: "Wan, Kaike" <kaike.wan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"Fleck,
John" <john.fleck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v5 1/1] ibacm: Add support for pathrecord query through netlink
Date: Thu, 11 Jun 2015 14:22:00 -0600 [thread overview]
Message-ID: <20150611202200.GA25813@obsidianresearch.com> (raw)
In-Reply-To: <2807E5FD2F6FDA4886F6618EAC48510E1109BDCF-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
On Thu, Jun 11, 2015 at 08:16:41PM +0000, Weiny, Ira wrote:
> > For instance if we add SL it would be mandatory, but policy information like
> > requesting net_device would be optional.
>
> Why would SL be mandatory?
If the kernel asks for a specific SL then user space must respect that
and return a path with that exact SL.
If userspace does not know how to do that, then it must not answer the
query. It cannot ignore the SL requirement and return a random SL.
Hypothetically, assuming we add SL..
Jason
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next prev parent reply other threads:[~2015-06-11 20:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-11 17:04 [PATCH v5 1/1] ibacm: Add support for pathrecord query through netlink kaike.wan-ral2JQCrhuEAvxtiuMwx3w
[not found] ` <1434042265-5066-1-git-send-email-kaike.wan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-06-11 17:59 ` Jason Gunthorpe
[not found] ` <20150611175940.GD20142-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-06-11 18:31 ` Wan, Kaike
[not found] ` <3F128C9216C9B84BB6ED23EF16290AFB0CABD2BD-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-06-11 18:46 ` Jason Gunthorpe
[not found] ` <20150611184641.GB20779-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-06-11 18:52 ` Wan, Kaike
[not found] ` <3F128C9216C9B84BB6ED23EF16290AFB0CABD316-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-06-11 19:27 ` Jason Gunthorpe
[not found] ` <20150611192719.GA24457-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-06-11 19:35 ` Wan, Kaike
[not found] ` <3F128C9216C9B84BB6ED23EF16290AFB0CABD362-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-06-11 19:54 ` Jason Gunthorpe
2015-06-11 20:16 ` Weiny, Ira
[not found] ` <2807E5FD2F6FDA4886F6618EAC48510E1109BDCF-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-06-11 20:22 ` Jason Gunthorpe [this message]
[not found] ` <20150611202200.GA25813-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-06-11 20:55 ` Weiny, Ira
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