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if_dwc: Reduce DMA descriptor count

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Sebastian Huber
2017-01-09 11:43:40 +01:00
parent 88dad3bc92
commit 0436d64a2a
1 changed files with 8 additions and 0 deletions
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8
freebsd/sys/dev/dwc/if_dwcvar.h
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@@ -45,9 +45,17 @@
* Driver data and defines.
*/
#define RX_MAX_PACKET 0x7ff
#ifndef __rtems__
#define RX_DESC_COUNT 1024
#else /* __rtems__ */
#define RX_DESC_COUNT 64
#endif /* __rtems__ */
#define RX_DESC_SIZE (sizeof(struct dwc_hwdesc) * RX_DESC_COUNT)
#ifndef __rtems__
#define TX_DESC_COUNT 1024
#else /* __rtems__ */
#define TX_DESC_COUNT 256
#endif /* __rtems__ */
#define TX_DESC_SIZE (sizeof(struct dwc_hwdesc) * TX_DESC_COUNT)
#define TX_MAX_DMA_SEGS 8 /* maximum segs in a tx mbuf dma */