From: Alex Williamson <alex.williamson@redhat.com>
To: Ran Shalit <ranshalit@gmail.com>, linux-pci@vger.kernel.org
Subject: Re: Q: Relation between lanes to devices and to BARs
Date: Sun, 31 Jan 2016 21:14:53 -0700 [thread overview]
Message-ID: <1454300093.10542.3.camel@redhat.com> (raw)
In-Reply-To: <CAJ2oMhL-oL68ZOLsFEn3uGE=O9sMjcwPDH6oznLhG15xnzSQtQ@mail.gmail.com>
On Sun, 2016-01-31 at 02:15 -0500, Ran Shalit wrote:
> Hello,
>
> I am new to pci express drivers, and would please like to ask a question.
> We develop a linux driver for a PCIe device board with 4 lanes.
> 1. Is it expected that this will be recognized as a single device or
> multiple device ?
It depends whether your device is multifunction.
> 2. Is it that each lane rales to a different BAR or there is no
> connection between these two ?
No relation, all PCI/e devices have the same set of standard BARs
available to them.
next prev parent reply other threads:[~2016-02-01 4:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-31 7:15 Q: Relation between lanes to devices and to BARs Ran Shalit
2016-02-01 4:14 ` Alex Williamson [this message]
2016-02-01 18:41 ` Ran Shalit
2016-02-01 20:54 ` Bjorn Helgaas
2016-02-11 15:22 ` Ran Shalit
2016-02-12 3:20 ` Bjorn Helgaas
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=1454300093.10542.3.camel@redhat.com \
--to=alex.williamson@redhat.com \
--cc=linux-pci@vger.kernel.org \
--cc=ranshalit@gmail.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.