On Mon, May 23, 2022 at 6:21 AM Christian Mauderer
<christian.maude...@embedded-brains.de> wrote:
>
> Typical embedded systems don't have that much memory. Reduce the buffer
> size to something more sensible for the usual type of application.
> ---
> freebsd/sys/dev/ffec/if_ffec.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/freebsd/sys/dev/ffec/if_ffec.c b/freebsd/sys/dev/ffec/if_ffec.c
> index 47c0f770..4c1e147b 100644
> --- a/freebsd/sys/dev/ffec/if_ffec.c
> +++ b/freebsd/sys/dev/ffec/if_ffec.c
> @@ -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__ */
Do we need some way to control this parameter? Or, how will this
appear if it breaks something?
> #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
>
> --
> 2.35.3
>
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