path: root/Documentation
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authorDave Jiang <dave.jiang@intel.com>2011-07-29 17:17:00 -0700
committerJames Bottomley <JBottomley@Parallels.com>2011-08-23 19:54:24 -0700
commit3a7bda830fad427768ed71c0ebf3448849c006b5 (patch)
tree601d8c165a70e5bb33bac239b03dd296222bfcdf /Documentation
parent4ac13e177904280a2502c27029a72e3fd2957cde (diff)
[SCSI] isci: Adding documentation to API change and fixup sysfs registration
Adding API update for adding isci_id entry scsi_host sysfs entry. Also fixing up the sysfs registration to the scsi_host template Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'Documentation')
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-scsi_host b/Documentation/ABI/testing/sysfs-class-scsi_host
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index 000000000000..29a4f892e433
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+++ b/Documentation/ABI/testing/sysfs-class-scsi_host
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+What: /sys/class/scsi_host/hostX/isci_id
+Date: June 2011
+Contact: Dave Jiang <dave.jiang@intel.com>
+ This file contains the enumerated host ID for the Intel
+ SCU controller. The Intel(R) C600 Series Chipset SATA/SAS
+ Storage Control Unit embeds up to two 4-port controllers in
+ a single PCI device. The controllers are enumerated in order
+ which usually means the lowest number scsi_host corresponds
+ with the first controller, but this association is not
+ guaranteed. The 'isci_id' attribute unambiguously identifies
+ the controller index: '0' for the first controller,
+ '1' for the second.

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