diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-08-29 01:12:10 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-03 10:10:12 +0300 |
| commit | d7aad5550eca50370e3a1471b46281d03af0699e (patch) | |
| tree | 86f2cefe46536f65d9adf8035b11a02f4c8ad3ec /drivers/dma/idxd/init.c | |
| parent | b0ef489e2a9cfcb64e4a20f308023afaea9db8d3 (diff) | |
| download | linux-d7aad5550eca50370e3a1471b46281d03af0699e.tar.xz | |
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/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 c7c61974f20f..e5ed5750a6d0 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -176,6 +176,7 @@ static int idxd_setup_internals(struct idxd_device *idxd) wq->idxd = idxd; mutex_init(&wq->wq_lock); wq->idxd_cdev.minor = -1; + wq->max_xfer_bytes = idxd->max_xfer_bytes; } for (i = 0; i < idxd->max_engines; i++) { |