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| author | Dave Jiang <dave.jiang@intel.com> | 2020-08-29 00:12:50 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-03 09:10:12 +0200 |
| commit | e7184b159dd37f4be8ff3d070c7c11f76b5bc3fe (patch) | |
| tree | 9c7891e6deddb6a3de55f5a91839deea4d63ad37 /drivers/dma/idxd/init.c | |
| parent | dmaengine: idxd: add support for configurable max wq xfer size (diff) | |
| download | linux-e7184b159dd37f4be8ff3d070c7c11f76b5bc3fe.tar.xz linux-e7184b159dd37f4be8ff3d070c7c11f76b5bc3fe.zip | |
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/init.c')
| -rw-r--r-- | drivers/dma/idxd/init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index e5ed5750a6d0..11e5ce168177 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -177,6 +177,7 @@ static int idxd_setup_internals(struct idxd_device *idxd) mutex_init(&wq->wq_lock); wq->idxd_cdev.minor = -1; wq->max_xfer_bytes = idxd->max_xfer_bytes; + wq->max_batch_size = idxd->max_batch_size; } for (i = 0; i < idxd->max_engines; i++) { |