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author | 2013-05-14 13:48:40 -0500 | |
---|---|---|
committer | 2013-05-14 11:44:07 -0700 | |
commit | e628dc999e43a9dd51fb6bd810772c277f934484 (patch) | |
tree | d950d81c8a2351ae0f12cc5cb45a7f6222dadc98 /include/linux/libata.h | |
parent | Linux 3.10-rc1 (diff) | |
download | linux-e628dc999e43a9dd51fb6bd810772c277f934484.tar.gz linux-e628dc999e43a9dd51fb6bd810772c277f934484.tar.bz2 linux-e628dc999e43a9dd51fb6bd810772c277f934484.zip |
libata: export ata_port port_no attribute via /sys
While registering host controller track port number based upon number
of ports available on the controller, export port_no attribute through
/sys. This patch is needed by udev for composing persistent links in
/dev/disk/by-path.
/sys/devices/pci0000:00/0000:00:1f.2/ata8/ata_port/ata8
total 0
lrwxrwxrwx. 1 root root 0 Mar 6 12:43 device -> ../../../ata8
-r--r--r--. 1 root root 4096 Mar 6 12:43 idle_irq
-r--r--r--. 1 root root 4096 Mar 6 12:43 nr_pmp_links
-r--r--r--. 1 root root 4096 Mar 6 12:43 port_no
drwxr-xr-x. 2 root root 0 Mar 6 12:42 power
lrwxrwxrwx. 1 root root 0 Mar 6 12:41 subsystem -> ../../../../../../class/ata_port
-rw-r--r--. 1 root root 4096 Mar 6 12:40 uevent
1
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r-- | include/linux/libata.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index eae7a053dc51..47e029236f6e 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -746,6 +746,7 @@ struct ata_port { /* Flags that change dynamically, protected by ap->lock */ unsigned int pflags; /* ATA_PFLAG_xxx */ unsigned int print_id; /* user visible unique port ID */ + unsigned int local_port_no; /* host local port num */ unsigned int port_no; /* 0 based port no. inside the host */ #ifdef CONFIG_ATA_SFF |