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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-25 16:49:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-25 16:49:21 -0700
commit64e22b86854227b4d13a57fa02f26472bc426812 (patch)
tree2a23b94b3310592249c807c4235ff674b59d844a /Documentation/ABI
parent6597ac8a514e2085cf19822a5783345c613312a5 (diff)
parent243918be6393f643e513a26e7882e6ae06ff7717 (diff)
Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo: - a number of libata core changes to better support NCQ TRIM. - ahci now supports MSI-X in single IRQ mode to support a new controller which doesn't implement MSI or INTX. - ahci now supports edge-triggered IRQ mode to support a new controller which for some odd reason did edge-triggered IRQ. - the usual controller support additions and changes. * 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (27 commits) libata: Do not blacklist Micron M500DC ata: ahci_mvebu: add suspend/resume support ahci, msix: Fix build error for !PCI_MSI ahci: Add support for Cavium's ThunderX host controller ahci: Add generic MSI-X support for single interrupts to SATA PCI driver libata: finally use __initconst in ata_parse_force_one() drivers: ata: add support for Ceva sata host controller devicetree:bindings: add devicetree bindings for ceva ahci ahci: added support for Freescale AHCI sata ahci: Store irq number in struct ahci_host_priv ahci: Move interrupt enablement code to a separate function Doc: libata: Fix spelling typo found in libata.xml ata:sata_nv - Change 1 to true for bool type variable. ata: add Broadcom AHCI SATA3 driver for STB chips Documentation: devicetree: add Broadcom SATA binding libata: Fix regression when the NCQ Send and Receive log page is absent ata: hpt366: fix constant cast warning ata: ahci_xgene: potential NULL dereference in probe ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller. libahci: Add support to handle HOST_IRQ_STAT as edge trigger latch. ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-ata11
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-ata b/Documentation/ABI/testing/sysfs-ata
index 0a932155cbba..aa4296498859 100644
--- a/Documentation/ABI/testing/sysfs-ata
+++ b/Documentation/ABI/testing/sysfs-ata
@@ -90,6 +90,17 @@ gscr
130: SATA_PMP_GSCR_SII_GPIO
Only valid if the device is a PM.
+trim
+
+ Shows the DSM TRIM mode currently used by the device. Valid
+ values are:
+ unsupported: Drive does not support DSM TRIM
+ unqueued: Drive supports unqueued DSM TRIM only
+ queued: Drive supports queued DSM TRIM
+ forced_unqueued: Drive's queued DSM support is known to be
+ buggy and only unqueued TRIM commands
+ are sent
+
spdn_cnt
Number of time libata decided to lower the speed of link due to errors.