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if_dwc: Increase DMA descriptor count

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This prevents some packet loss under heavy load conditions.
This commit is contained in:
Sebastian Huber 2015-04-07 13:53:16 +02:00
parent fb7a5329b0
commit ebc797fc84
1 changed files with 1 additions and 5 deletions
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6
freebsd/sys/dev/dwc/if_dwc.c
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@ -153,14 +153,10 @@ struct dwc_hwdesc
#ifndef __rtems__ #ifndef __rtems__
#define RX_DESC_COUNT 1024 #define RX_DESC_COUNT 1024
#else /* __rtems__ */ #else /* __rtems__ */
#define RX_DESC_COUNT 64 #define RX_DESC_COUNT 256
#endif /* __rtems__ */ #endif /* __rtems__ */
#define RX_DESC_SIZE (sizeof(struct dwc_hwdesc) * RX_DESC_COUNT) #define RX_DESC_SIZE (sizeof(struct dwc_hwdesc) * RX_DESC_COUNT)
#ifndef __rtems__
#define TX_DESC_COUNT 1024 #define TX_DESC_COUNT 1024
#else /* __rtems__ */
#define TX_DESC_COUNT 64
#endif /* __rtems__ */
#define TX_DESC_SIZE (sizeof(struct dwc_hwdesc) * TX_DESC_COUNT) #define TX_DESC_SIZE (sizeof(struct dwc_hwdesc) * TX_DESC_COUNT)
#define TX_MAX_DMA_SEGS 8 /* maximum segs in a tx mbuf dma */ #define TX_MAX_DMA_SEGS 8 /* maximum segs in a tx mbuf dma */