Xiaochen Shen c91e4513bc dmaengine: idxd: Make read buffer sysfs attributes invisible for Intel IAA ... [ Upstream commit 9a8ddb35a9d5d3ad76784a012459b256a9d7de7e ] In current code, the following sysfs attributes are exposed to user to show or update the values: max_read_buffers (max_tokens) read_buffer_limit (token_limit) group/read_buffers_allowed (group/tokens_allowed) group/read_buffers_reserved (group/tokens_reserved) group/use_read_buffer_limit (group/use_token_limit) >From Intel IAA spec [1], Intel IAA does not support Read Buffer allocation control. So these sysfs attributes should not be supported on IAA device. Fix this issue by making these sysfs attributes invisible through is_visible() filter when the device is IAA. Add description in the ABI documentation to mention that these attributes are not visible when the device does not support Read Buffer allocation control. [1]: https://cdrdv2.intel.com/v1/dl/getContent/721858 Fixes: fde212e44f ("dmaengine: idxd: deprecate token sysfs attributes for read buffers") Fixes: c52ca47823 ("dmaengine: idxd: add configuration component of driver") Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/20221022074949.11719-1-xiaochen.shen@intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-31 13:32:47 +01:00
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bus.c	Bus: Make remove callback return void tag	2021-07-27 19:12:14 +05:30
cdev.c	dmaengine: idxd: Do not enable user type Work Queue without Shared Virtual Addressing	2022-10-19 19:02:10 +05:30
compat.c	dmaengine: idxd: Fix a possible NULL pointer dereference	2021-08-02 12:35:10 +05:30
device.c	dmaengine: idxd: fix RO device state error after been disabled/reset	2022-11-08 10:43:56 +05:30
dma.c	dmaengine: idxd: add missing callback function to support DMA_INTERRUPT	2022-05-16 23:18:21 +05:30
idxd.h	dmaengine: idxd: Fix max batch size for Intel IAA	2022-11-08 10:43:55 +05:30
init.c	dmaengine: idxd: Fix max batch size for Intel IAA	2022-11-08 10:43:55 +05:30
irq.c	dmaengine: idxd: Remove unused struct idxd_fault	2022-09-29 13:11:33 +05:30
Makefile	dmaengine: idxd: move dsa_drv support to compatible mode	2021-07-21 10:09:16 +05:30
perfmon.c	dmaengine: idxd: Add IDXD performance monitor support	2021-04-25 21:46:12 +05:30
perfmon.h	dmaengine: idxd: Add IDXD performance monitor support	2021-04-25 21:46:12 +05:30
registers.h	dmaengine: idxd: add configuration for concurrent batch descriptor processing	2022-09-29 22:46:08 +05:30
submit.c	dmaengine: idxd: fix retry value to be constant for duration of function call	2022-04-20 17:24:42 +05:30
sysfs.c	dmaengine: idxd: Make read buffer sysfs attributes invisible for Intel IAA	2022-12-31 13:32:47 +01:00