diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-08-28 15:12:10 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-03 12:40:12 +0530 |
| commit | d7aad5550eca50370e3a1471b46281d03af0699e (patch) | |
| tree | 86f2cefe46536f65d9adf8035b11a02f4c8ad3ec /drivers/dma/idxd/idxd.h | |
| parent | b0ef489e2a9cfcb64e4a20f308023afaea9db8d3 (diff) | |
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>
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 e62b4799d189..81db2a472822 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -114,6 +114,7 @@ struct idxd_wq { struct sbitmap_queue sbq; struct dma_chan dma_chan; char name[WQ_NAME_SIZE + 1]; + u64 max_xfer_bytes; }; struct idxd_engine { |