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| author | Xiaochen Shen <xiaochen.shen@intel.com> | 2022-09-30 22:15:28 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-10-19 18:25:29 +0200 |
| commit | 91123b37e8a99cc489d5bdcfebd1c25f29382504 (patch) | |
| tree | 3a716672a2798104e0d28633f28aa8909b7d6271 /tools/firewire | |
| parent | dmaengine: idma64: Make idma64_remove() return void (diff) | |
| download | linux-91123b37e8a99cc489d5bdcfebd1c25f29382504.tar.xz linux-91123b37e8a99cc489d5bdcfebd1c25f29382504.zip | |
dmaengine: idxd: Make max batch size attributes in sysfs invisible for Intel IAA
In current code, dev.max_batch_size and wq.max_batch_size attributes in
sysfs are exposed to user to show or update the values.
>From Intel IAA spec [1], Intel IAA does not support batch processing. So
these sysfs attributes should not be supported on IAA device.
Fix this issue by making the attributes of max_batch_size invisible in
sysfs through is_visible() filter when the device is IAA.
Add description in the ABI documentation to mention that the attributes
are not visible when the device does not support batch.
[1]: https://cdrdv2.intel.com/v1/dl/getContent/721858
Fixes: e7184b159dd3 ("dmaengine: idxd: add support for configurable max wq batch size")
Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver")
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20220930201528.18621-3-xiaochen.shen@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/firewire')
0 files changed, 0 insertions, 0 deletions