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| author | Dave Jiang <dave.jiang@intel.com> | 2020-08-29 01:12:50 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-03 10:10:12 +0300 |
| commit | e7184b159dd37f4be8ff3d070c7c11f76b5bc3fe (patch) | |
| tree | 9c7891e6deddb6a3de55f5a91839deea4d63ad37 /drivers/dma/idxd/idxd.h | |
| parent | d7aad5550eca50370e3a1471b46281d03af0699e (diff) | |
| download | linux-e7184b159dd37f4be8ff3d070c7c11f76b5bc3fe.tar.xz | |
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>
Diffstat (limited to 'drivers/dma/idxd/idxd.h')
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 81db2a472822..e8bec6eb9f7e 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -115,6 +115,7 @@ struct idxd_wq { struct dma_chan dma_chan; char name[WQ_NAME_SIZE + 1]; u64 max_xfer_bytes; + u32 max_batch_size; }; struct idxd_engine { |