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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 18:49:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 18:49:04 -0700
commit1a0b6abaea78f73d9bc0a2f6df2d9e4c917cade1 (patch)
treefaae6f0b72b00a0a4d44cadc607e576e1954a5bc /Documentation/ABI
parent3e75c6de1ac33fe3500f44573d9212dc82c99f59 (diff)
parentb2bff6ceb61a9a21294f04057d30c9bb4910a88f (diff)
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley: "This patch consists of the usual driver updates (megaraid_sas, scsi_debug, qla2xxx, qla4xxx, lpfc, bnx2fc, be2iscsi, hpsa, ipr) plus an assortment of minor fixes and the first precursors of SCSI-MQ (the code path simplifications) and the bug fix for the USB oops on remove (which involves an infrastructure change, so is sent via the main tree with a delayed backport after a cycle in which it is shown to introduce no new bugs)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (196 commits) [SCSI] sd: Quiesce mode sense error messages [SCSI] add support for per-host cmd pools [SCSI] simplify command allocation and freeing a bit [SCSI] megaraid: simplify internal command handling [SCSI] ses: Use vpd information from scsi_device [SCSI] Add EVPD page 0x83 and 0x80 to sysfs [SCSI] Return VPD page length in scsi_vpd_inquiry() [SCSI] scsi_sysfs: Implement 'is_visible' callback [SCSI] hpsa: update driver version to 3.4.4-1 [SCSI] hpsa: fix bad endif placement in RAID 5 mapper code [SCSI] qla2xxx: Fix build errors related to invalid print fields on some architectures. [SCSI] bfa: Replace large udelay() with mdelay() [SCSI] vmw_pvscsi: Some improvements in pvscsi driver. [SCSI] vmw_pvscsi: Add support for I/O requests coalescing. [SCSI] vmw_pvscsi: Fix pvscsi_abort() function. [SCSI] remove deprecated IRQF_DISABLED from SCSI [SCSI] bfa: Updating Maintainers email ids [SCSI] ipr: Add new CCIN definition for Grand Canyon support [SCSI] ipr: Format HCAM overlay ID 0x21 [SCSI] ipr: Use pci_enable_msi_range() and pci_enable_msix_range() ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-class-scsi_host16
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-scsi_host b/Documentation/ABI/testing/sysfs-class-scsi_host
index 29a4f892e433..0eb255e7db12 100644
--- a/Documentation/ABI/testing/sysfs-class-scsi_host
+++ b/Documentation/ABI/testing/sysfs-class-scsi_host
@@ -11,3 +11,19 @@ Description:
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.