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@xxxxxxxxxx> --- 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.
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