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

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

Signed-off-by: Sean 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: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Sean Anderson 2025-01-16 18:29:49 -05:00 committed by Jakub Kicinski
parent a26892ee12
commit 5cff9d1756
2 changed files with 5 additions and 5 deletions
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3
drivers/net/ethernet/xilinx/xilinx_axienet.h
View File

@ -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

7
drivers/net/ethernet/xilinx/xilinx_axienet_main.c
View File

@ -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));
}
/**