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if_ffec: Reduce buffer size

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Typical embedded systems don't have that much memory. Reduce the buffer
size to something more sensible for the usual type of application.
This commit is contained in:
Christian Mauderer 2022-05-20 10:42:39 +02:00
parent ed25b390fc
commit 2a6a230e65
1 changed files with 8 additions and 0 deletions
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8
freebsd/sys/dev/ffec/if_ffec.c
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@ -139,9 +139,17 @@ static struct ofw_compat_data compat_data[] = {
/*
* Driver data and defines. The descriptor counts must be a power of two.
*/
#ifndef __rtems__
#define RX_DESC_COUNT 512
#else /* __rtems__ */
#define RX_DESC_COUNT 64
#endif /* __rtems__ */
#define RX_DESC_SIZE (sizeof(struct ffec_hwdesc) * RX_DESC_COUNT)
#ifndef __rtems__
#define TX_DESC_COUNT 512
#else /* __rtems__ */
#define TX_DESC_COUNT 64
#endif /* __rtems__ */
#define TX_DESC_SIZE (sizeof(struct ffec_hwdesc) * TX_DESC_COUNT)
#define TX_MAX_DMA_SEGS 8