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6 Commits

Author SHA1 Message Date
Dave Jiang ff18de55a6 dmaengine: idxd: add command status to idxd sysfs attribute 
Export admin command status to sysfs attribute in order to allow user to
retrieve configuration error. Allows user tooling to retrieve the command
error and provide more user friendly error messages.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159865278770.29455.8026892329182750127.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-09-03 12:40:12 +05:30
Dave Jiang e7184b159d dmaengine: idxd: add support for configurable max wq batch size 
Add sysfs attribute max_batch_size to wq in order to allow the max batch
size configured on a per wq basis. Add support code to configure
the valid user input on wq enable. This is a performance tuning
parameter.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159865273617.29141.4383066301730821749.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-09-03 12:40:12 +05:30
Dave Jiang d7aad5550e dmaengine: idxd: add support for configurable max wq xfer size 
Add sysfs attribute max_xfer_size to wq in order to allow the max xfer
size configured on a per wq basis. Add support code to configure
the valid user input on wq enable. This is a performance tuning
parameter.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159865265404.29141.3049399618578194052.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-09-03 12:40:12 +05:30
Dave Jiang 77522b2191 dmaengine: idxd: add leading / for sysfspath in ABI documentation 
Correct to standard convention. All sysfs paths seem to be missing
leading /.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/159225447176.68253.2922149693913698177.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-06-24 12:54:57 +05:30
Dave Jiang c2ce6bbcfc dmaengine: idxd: export hw version through sysfs 
Some user apps would like to know the hardware version in order to
determine the variation of the hardware. Export the hardware version number
to userspace via sysfs.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/158696714008.39484.13401950732606906479.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-04-15 21:54:00 +05:30
Jing Lin b131ad5938 dmaengine: idxd: add sysfs ABI for idxd driver 
Add the sysfs ABI information for idxd driver in
Documentation/ABI/stable directory.

Signed-off-by: Jing Lin <jing.lin@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965025170.73301.13428570530450446901.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-01-24 11:18:45 +05:30