From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Paolo Abeni <pabeni-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Hal Rosenstock
<hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] IB/ipoib: move back the IB LL address into the hard header
Date: Tue, 11 Oct 2016 12:27:09 -0600 [thread overview]
Message-ID: <20161011182709.GA20253@obsidianresearch.com> (raw)
In-Reply-To: <1476209407.448.9.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Tue, Oct 11, 2016 at 08:10:07PM +0200, Paolo Abeni wrote:
> The first s/g fragment (the head buffer) is not allocated with the page
> allocator, so perhaps there is some not too difficult/costly way out of
> this.
Keep in mind, there is nothing magic about the 16 SGL limit, other
than we know all hardware supports it. That can be bumped up and most
hardware will support a higher value.
We'd just have to figure out if any hardware breaks, Mellanox and Intel
should be able to respond to that question.
Jason
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next prev parent reply other threads:[~2016-10-11 18:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-11 17:15 [PATCH] IB/ipoib: move back the IB LL address into the hard header Paolo Abeni
[not found] ` <1dbd83dfe7f435eecc5bc460e901b47758280f30.1476206016.git.pabeni-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-10-11 17:32 ` Jason Gunthorpe
2016-10-11 17:37 ` Paolo Abeni
[not found] ` <1476207452.448.2.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-10-11 17:42 ` Jason Gunthorpe
[not found] ` <20161011174224.GA17319-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-10-11 17:52 ` Paolo Abeni
2016-10-11 17:41 ` Doug Ledford
2016-10-11 18:01 ` Jason Gunthorpe
2016-10-11 18:10 ` Paolo Abeni
[not found] ` <1476209407.448.9.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-10-11 18:17 ` Doug Ledford
[not found] ` <073e0007-a43b-134d-ba7e-b290304be585-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-10-11 18:30 ` Jason Gunthorpe
[not found] ` <20161011183019.GC20253-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-10-11 18:50 ` Doug Ledford
2016-10-12 18:21 ` Doug Ledford
2016-10-11 18:27 ` Jason Gunthorpe [this message]
2016-10-13 14:24 ` David Miller
[not found] ` <20161013.102432.1450901395774429343.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2016-10-13 14:35 ` Doug Ledford
2016-10-13 14:43 ` [PATCH] IB/ipoib: move back the IB LL address into the hard header,Re: " David Miller
[not found] ` <20161013.104314.1842951254979604965.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2016-10-13 15:20 ` Doug Ledford
2016-10-13 15:57 ` [PATCH] IB/ipoib: move back the IB LL address into the hard header,Re: [PATCH] IB/ipoib: move back the IB LL address into the hard header,Re: " David Miller
2016-10-13 15:17 ` Paolo Abeni
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