On Tue, Dec 17, 2013 at 2:02 AM, Dorau, Lukasz [off-list ref] wrote:

On Tuesday, December 17, 2013 10:41 AM Neil Brown (neilb@suse.de) wrote:

quoted

On Tue, 17 Dec 2013 09:10:44 +0000 "Dorau, Lukasz" [off-list ref]
wrote:

[...]

quoted

Personally, I really don't care.  Does anyone know what udev changed?  Maybe
we should ask udev developers to change it back.

NeilBrown

udev developers wrote:
http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-path_id.c#n378

        /*
         * We do not support the ATA transport class, it uses global counters
         * to name the ata devices which numbers spread across multiple
         * controllers.
         *
         * The real link numbers are not exported. Also, possible chains of ports
         * behind port multipliers cannot be composed that way.
         *
         * Until all that is solved at the kernel level, there are no by-path/
         * links for ATA devices.
         */

Seems relatively straightforward to add a hardware port number
attribute to the ata_port.  I think the same could be done ata_link,
right?