[PATCH V2 4/6] dmaengine: xilinx_dma: Increase AXI DMA transaction segment count

From: Sarath Babu Naidu Gaddam
Date: Thu Nov 24 2022 - 05:29:31 EST


From: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>

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@xxxxxxxxxx>
---
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 f783ba86cb09..6780b1c21414 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