dmaengine: idxd: create kmem cache for event log fault items

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Add a kmem cache per device for allocating event log fault context. The
context allows an event log entry to be copied and passed to a software
workqueue to be processed. Due to each device can have different sized
event log entry depending on device type, it's not possible to have a
global kmem cache.

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/20230407203143.2189681-8-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Dave Jiang 2023-04-07 13:31:34 -07:00 • committed by Vinod Koul

parent 2f30decd2f

commit c2f156bf16

3 changed files with 20 additions and 0 deletions

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10

drivers/dma/idxd/idxd.h

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9

drivers/dma/idxd/init.c

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1

drivers/dma/idxd/sysfs.c

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