Commit 5cff9d17 authored by Sean Anderson's avatar Sean Anderson Committed by Jakub Kicinski
Browse files

net: xilinx: axienet: Add some symbolic constants for IRQ delay timer 



Instead of using literals, add some symbolic constants for the IRQ delay
timer calculation.

Signed-off-by: default avatarSean Anderson <sean.anderson@linux.dev>
Reviewed by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://patch.msgid.link/20250116232954.2696930-2-sean.anderson@linux.dev


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent a26892ee

drivers/net/ethernet/xilinx/xilinx_axienet.h

+3 −0
Original line number Diff line number Diff line
@@ -120,6 +120,9 @@ 
#define XAXIDMA_IRQ_ERROR_MASK		0x00004000 /* Error interrupt */

#define XAXIDMA_IRQ_ALL_MASK		0x00007000 /* All interrupts */



/* Constant to convert delay counts to microseconds */

#define XAXIDMA_DELAY_SCALE		(125ULL * USEC_PER_SEC)



/* Default TX/RX Threshold and delay timer values for SGDMA mode */

#define XAXIDMA_DFT_TX_THRESHOLD	24

#define XAXIDMA_DFT_TX_USEC		50

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

+2 −5
Original line number Diff line number Diff line
@@ -238,11 +238,8 @@ static u32 axienet_usec_to_timer(struct axienet_local *lp, u32 coalesce_usec) 


	/* 1 Timeout Interval = 125 * (clock period of SG clock) */

	result = DIV64_U64_ROUND_CLOSEST((u64)coalesce_usec * clk_rate,

					 (u64)125000000);

	if (result > 255)

		result = 255;



	return result;

					 XAXIDMA_DELAY_SCALE);

	return min(result, FIELD_MAX(XAXIDMA_DELAY_MASK));

}



/**