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| author | Lior Amsalem <alior@marvell.com> | 2015-05-26 15:07:35 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-06-10 18:48:31 +0200 |
| commit | f1d25e0a9b1a6519580ddf5a7e5538093a504fcd (patch) | |
| tree | 01959d3f5f91ea61761c6ec7c75678859adff661 | |
| parent | dmaengine: mv_xor: add support for a38x command in descriptor mode (diff) | |
| download | linux-f1d25e0a9b1a6519580ddf5a7e5538093a504fcd.tar.xz linux-f1d25e0a9b1a6519580ddf5a7e5538093a504fcd.zip | |
dmaengine: mv_xor: Enlarge descriptor pool size
Now that we have 2 channels assigned to 2 CPUs and all requests are chained
on same channels, we need much more descriptors available to satisfy
async_tx workload.
3072 descriptors was found in our lab as the number of descriptors which
allow the async_tx stack to work without waiting for free descriptors on
submission of new requests.
Signed-off-by: Lior Amsalem <alior@marvell.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Tested-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| -rw-r--r-- | drivers/dma/mv_xor.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index ac1ce87935de..6b10c8c647b9 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -19,7 +19,7 @@ #include <linux/dmaengine.h> #include <linux/interrupt.h> -#define MV_XOR_POOL_SIZE PAGE_SIZE +#define MV_XOR_POOL_SIZE (MV_XOR_SLOT_SIZE * 3072) #define MV_XOR_SLOT_SIZE 64 #define MV_XOR_THRESHOLD 1 #define MV_XOR_MAX_CHANNELS 2 |