From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: Scott Wood <scottwood@freescale.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: pci node question
Date: Sat, 21 Apr 2012 07:20:16 +1000 [thread overview]
Message-ID: <1334956816.3197.24.camel@pasglop> (raw)
In-Reply-To: <EDA55B32-FD14-4B5C-90AF-7FC5F77898E0@kernel.crashing.org>
On Fri, 2012-04-20 at 15:37 -0500, Kumar Gala wrote:
> > What does this node represent in the first place? Is there really a
> > PCI-to-PCI bridge? Are all other PCI devices underneath it?
>
> PCIe has this concept of a "virtual" bridge between the root-comples,
> so that is what the node represents. Its always been a bit confusing
> to me as its not 100% standardized by PCI sig.
It actually is. The root complex virtual p2p is absolutely part of the
standard.
Cheers,
Ben.
next prev parent reply other threads:[~2012-04-20 21:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-20 18:37 pci node question Yoder Stuart-B08248
2012-04-20 18:53 ` Kumar Gala
2012-04-20 19:04 ` Scott Wood
2012-04-20 20:37 ` Kumar Gala
2012-04-20 20:53 ` Scott Wood
2012-04-20 21:24 ` Benjamin Herrenschmidt
2012-04-20 21:20 ` Benjamin Herrenschmidt [this message]
2012-04-20 21:19 ` Benjamin Herrenschmidt
2012-04-20 19:50 ` Yoder Stuart-B08248
2012-04-20 21:11 ` Benjamin Herrenschmidt
2012-04-23 15:48 ` Yoder Stuart-B08248
2012-04-23 20:21 ` Benjamin Herrenschmidt
2012-04-23 20:32 ` Yoder Stuart-B08248
2012-04-23 20:40 ` Benjamin Herrenschmidt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1334956816.3197.24.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=galak@kernel.crashing.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=scottwood@freescale.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.