[rtems-libbsd commit] if_dwc: Reduce DMA descriptor count
Sebastian Huber
sebh at rtems.org
Tue Jan 10 10:06:12 UTC 2017
Module: rtems-libbsd
Branch: master
Commit: 0436d64a2a28e1970cc64274de75cbe7a4cd8185
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=0436d64a2a28e1970cc64274de75cbe7a4cd8185
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Mon Jan 9 11:43:40 2017 +0100
if_dwc: Reduce DMA descriptor count
---
freebsd/sys/dev/dwc/if_dwcvar.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/freebsd/sys/dev/dwc/if_dwcvar.h b/freebsd/sys/dev/dwc/if_dwcvar.h
index d832f1a..2c485dc 100644
--- a/freebsd/sys/dev/dwc/if_dwcvar.h
+++ b/freebsd/sys/dev/dwc/if_dwcvar.h
@@ -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 */
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