From: Lior Amsalem <[email protected]> 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 <[email protected]> Reviewed-by: Nadav Haklai <[email protected]> Tested-by: Nadav Haklai <[email protected]> Signed-off-by: Maxime Ripard <[email protected]> --- drivers/dma/mv_xor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index 89a8c85539a1..145ba2f895f7 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 -- 2.4.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
