Messages in this thread Patch in this message | | | From | Sarath Babu Naidu Gaddam <> | Subject | [RFC V3 PATCH 4/8] dmaengine: xilinx_dma: Increase AXI DMA transaction segment count | Date | Tue, 20 Sep 2022 11:21:15 +0530 |
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From: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Increase AXI DMA transaction segments count to ensure that even in high load we always get a free segment in prepare descriptor for a DMA_SLAVE transaction.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com> --- Changes in V3 and V2: - None --- drivers/dma/xilinx/xilinx_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index 12b1281b19bf..8c6065cbda79 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -178,7 +178,7 @@ #define XILINX_DMA_BD_SOP BIT(27) #define XILINX_DMA_BD_EOP BIT(26) #define XILINX_DMA_COALESCE_MAX 255 -#define XILINX_DMA_NUM_DESCS 255 +#define XILINX_DMA_NUM_DESCS 512 #define XILINX_DMA_NUM_APP_WORDS 5 /* AXI CDMA Specific Registers/Offsets */ -- 2.25.1
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