diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2022-09-17 19:12:22 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-09-29 20:16:08 +0300 |
| commit | 7ca68fa3c8ab83dfa539f16c5b4b1aec2e33320d (patch) | |
| tree | d2297934d9f37825cbe31c848cad90b86a91a9e8 /drivers/dma/idxd/idxd.h | |
| parent | 1f2737521af2b7d018971f1d873856fff02d2b33 (diff) | |
| download | linux-7ca68fa3c8ab83dfa539f16c5b4b1aec2e33320d.tar.xz | |
dmaengine: idxd: add configuration for concurrent batch descriptor processing
Add sysfs knob to allow control of the number of batch descriptors that can
be concurrently processed by an engine in the group as a fraction of the
Maximum Work Descriptors in Progress value specfied in ENGCAP register.
This control knob is part of toggle for QoS control.
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/20220917161222.2835172-6-fenghua.yu@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 7ee870e5ca67..1196ab342f01 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -97,6 +97,7 @@ struct idxd_group { int tc_a; int tc_b; int desc_progress_limit; + int batch_progress_limit; }; struct idxd_pmu { |