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| author | Dave Jiang <dave.jiang@intel.com> | 2023-04-07 23:31:29 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-04-12 20:48:44 +0300 |
| commit | 1649091f9180470f96f001724a4902d5d82bbd75 (patch) | |
| tree | 9f65451b2c4b4d28b7b25a111b10c74b9e81cf5d /Documentation/ABI/stable | |
| parent | 0c40bfb4c2dfad00a15337bb6213f92a797e3695 (diff) | |
| download | linux-1649091f9180470f96f001724a4902d5d82bbd75.tar.xz | |
dmaengine: idxd: add event log size sysfs attribute
Add support for changing of the event log size. Event log is a
feature added to DSA 2.0 hardware to improve error reporting.
It supersedes the SWERROR register on DSA 1.0 hardware and hope
to prevent loss of reported errors.
The error log size determines how many error entries supported for
the device. It can be configured by the user via sysfs attribute.
Tested-by: Tony Zhu <tony.zhu@intel.com>
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/20230407203143.2189681-3-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/ABI/stable')
| -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 d5e3dd3d8434..e01916611452 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -144,6 +144,14 @@ 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/dsa<m>/event_log_size +Date: Sept 14, 2022 +KernelVersion: 6.4.0 +Contact: dmaengine@vger.kernel.org +Description: The event log size to be configured. Default is 64 entries and + occupies 4k size if the evl entry is 64 bytes. It's visible + only on platforms that support the capability. + What: /sys/bus/dsa/devices/wq<m>.<n>/block_on_fault Date: Oct 27, 2020 KernelVersion: 5.11.0 |