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| author | Dave Jiang <dave.jiang@intel.com> | 2023-03-04 00:37:32 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-03-31 14:56:53 +0300 |
| commit | 9f0d99b327edd217462852635498694aaf471b33 (patch) | |
| tree | bb43220333151526c12dc372cf1d2d5f3ac5d7eb /Documentation/ABI | |
| parent | 34ca00662eb7f184f249dd2168ebea78d945e3e4 (diff) | |
| download | linux-9f0d99b327edd217462852635498694aaf471b33.tar.xz | |
dmaengine: idxd: expose IAA CAP register via sysfs knob
Add IAA (IAX) capability mask sysfs attribute to expose to applications.
The mask provides application knowledge of what capabilities this IAA
device supports. This mask is available for IAA 2.0 device or later.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20230303213732.3357494-3-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-dma-idxd | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index 3becc9a82bdf..d5e3dd3d8434 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -136,6 +136,14 @@ Description: The last executed device administrative command's status/error. Also last configuration error overloaded. Writing to it will clear the status. +What: /sys/bus/dsa/devices/dsa<m>/iaa_cap +Date: Sept 14, 2022 +KernelVersion: 6.0.0 +Contact: dmaengine@vger.kernel.org +Description: IAA (IAX) capability mask. Exported to user space for application + consumption. This attribute should only be visible on IAA devices + that are version 2 or later. + What: /sys/bus/dsa/devices/wq<m>.<n>/block_on_fault Date: Oct 27, 2020 KernelVersion: 5.11.0 |