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Diffstat (limited to 'kernel/Documentation/ABI/testing/sysfs-class-scsi_host')
| -rw-r--r-- | kernel/Documentation/ABI/testing/sysfs-class-scsi_host | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/Documentation/ABI/testing/sysfs-class-scsi_host b/kernel/Documentation/ABI/testing/sysfs-class-scsi_host new file mode 100644 index 000000000..0eb255e7d --- /dev/null +++ b/kernel/Documentation/ABI/testing/sysfs-class-scsi_host @@ -0,0 +1,29 @@ +What: /sys/class/scsi_host/hostX/isci_id +Date: June 2011 +Contact: Dave Jiang <dave.jiang@intel.com> +Description: + 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. + +What: /sys/class/scsi_host/hostX/acciopath_status +Date: November 2013 +Contact: Stephen M. Cameron <scameron@beardog.cce.hp.com> +Description: This file contains the current status of the "SSD Smart Path" + feature of HP Smart Array RAID controllers using the hpsa + driver. SSD Smart Path, when enabled permits the driver to + send i/o requests directly to physical devices that are part + of a logical drive, bypassing the controllers firmware RAID + stack for a performance advantage when possible. A value of + '1' indicates the feature is enabled, and the controller may + use the direct i/o path to physical devices. A value of zero + means the feature is disabled and the controller may not use + the direct i/o path to physical devices. This setting is + controller wide, affecting all configured logical drives on the + controller. This file is readable and writable. |