From: Jeff Garzik <jgarzik@pobox.com>
To: David Milburn <dmilburn@redhat.com>
Cc: linux-ide@vger.kernel.org, kay.sievers@vrfy.org,
coughlan@redhat.com, Gwendal Grignou <gwendal@google.com>
Subject: Re: [PATCH] libata: export host controller number thru /sys
Date: Mon, 14 Jan 2013 13:32:13 -0500 [thread overview]
Message-ID: <50F44F2D.4060204@pobox.com> (raw)
In-Reply-To: <1358179170-19326-1-git-send-email-dmilburn@redhat.com>
On 01/14/2013 10:59 AM, David Milburn wrote:
> As low-level drivers register their host controller(s), keep track
> of the number of controllers and export thru /sys in a <host.port>
> format so that udev can better match up port numbers with a
> specific controller.
>
> # pwd
> /sys/devices/pci0000:00
> # find . -name 'ata*' -print
>
> (2nd controller with port multiplier attached)
>
> ./0000:00:1e.0/0000:05:01.0/ata2.7
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7/dev7.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.0/dev7.0.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.0/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.1/dev7.1.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.1/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.2/dev7.2.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.2/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.3/dev7.3.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.3/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.4/dev7.4.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.4/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.5/dev7.5.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.5/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.6/dev7.6.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.6/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.7/dev7.7.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.7/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.8/dev7.8.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.8/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.9/dev7.9.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.9/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/ata_port
> ./0000:00:1e.0/0000:05:01.0/ata2.7/ata_port/ata2.7
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.10/dev7.10.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.10/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.11/dev7.11.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.11/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.12/dev7.12.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.12/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.13/dev7.13.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.13/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.14/dev7.14.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.7/link7.14/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.8
> ./0000:00:1e.0/0000:05:01.0/ata2.8/link8/dev8.0/ata_device
> ./0000:00:1e.0/0000:05:01.0/ata2.8/link8/ata_link
> ./0000:00:1e.0/0000:05:01.0/ata2.8/ata_port
> ./0000:00:1e.0/0000:05:01.0/ata2.8/ata_port/ata2.8
>
> (1st controller)
>
> ./0000:00:1f.2/ata1.1
> ./0000:00:1f.2/ata1.1/link1/dev1.0/ata_device
> ./0000:00:1f.2/ata1.1/link1/ata_link
> ./0000:00:1f.2/ata1.1/ata_port
> ./0000:00:1f.2/ata1.1/ata_port/ata1.1
> ./0000:00:1f.2/ata1.2
> ./0000:00:1f.2/ata1.2/link2/dev2.0/ata_device
> ./0000:00:1f.2/ata1.2/link2/ata_link
> ./0000:00:1f.2/ata1.2/ata_port
> ./0000:00:1f.2/ata1.2/ata_port/ata1.2
> ./0000:00:1f.2/ata1.3
> ./0000:00:1f.2/ata1.3/link3/dev3.0/ata_device
> ./0000:00:1f.2/ata1.3/link3/ata_link
> ./0000:00:1f.2/ata1.3/ata_port
> ./0000:00:1f.2/ata1.3/ata_port/ata1.3
> ./0000:00:1f.2/ata1.4
> ./0000:00:1f.2/ata1.4/link4/dev4.0/ata_device
> ./0000:00:1f.2/ata1.4/link4/ata_link
> ./0000:00:1f.2/ata1.4/ata_port
> ./0000:00:1f.2/ata1.4/ata_port/ata1.4
> ./0000:00:1f.2/ata1.5
> ./0000:00:1f.2/ata1.5/link5/dev5.0/ata_device
> ./0000:00:1f.2/ata1.5/link5/ata_link
> ./0000:00:1f.2/ata1.5/ata_port
> ./0000:00:1f.2/ata1.5/ata_port/ata1.5
> ./0000:00:1f.2/ata1.6
> ./0000:00:1f.2/ata1.6/link6/dev6.0/ata_device
> ./0000:00:1f.2/ata1.6/link6/ata_link
> ./0000:00:1f.2/ata1.6/ata_port
> ./0000:00:1f.2/ata1.6/ata_port/ata1.6
>
> Signed-off-by: David Milburn <dmilburn@redhat.com>
> ---
> drivers/ata/libata-core.c | 4 ++++
> drivers/ata/libata-transport.c | 2 +-
> include/linux/libata.h | 1 +
> 3 files changed, 6 insertions(+), 1 deletions(-)
Applied to #upstream, though we'll see if anybody has sysfs file layout
comments.
prev parent reply other threads:[~2013-01-14 18:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 15:59 [PATCH] libata: export host controller number thru /sys David Milburn
2013-01-14 18:32 ` Jeff Garzik [this message]
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=50F44F2D.4060204@pobox.com \
--to=jgarzik@pobox.com \
--cc=coughlan@redhat.com \
--cc=dmilburn@redhat.com \
--cc=gwendal@google.com \
--cc=kay.sievers@vrfy.org \
--cc=linux-ide@vger.kernel.org \
/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.