[rtems-libbsd commit] ffec: Increase descriptor ring alignment

[Sebastian Huber]

Module:    rtems-libbsd
Branch:    master
Commit:    1378632ad81676c3a69d8e4656c2b5765bac2bd1
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=1378632ad81676c3a69d8e4656c2b5765bac2bd1

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Wed Sep 27 09:23:06 2017 +0200

ffec: Increase descriptor ring alignment

For optimal performance a 64-byte alignment is recommended.

---

 freebsd/sys/dev/ffec/if_ffecreg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/freebsd/sys/dev/ffec/if_ffecreg.h b/freebsd/sys/dev/ffec/if_ffecreg.h
index bc44af3..6faa095 100644
--- a/freebsd/sys/dev/ffec/if_ffecreg.h
+++ b/freebsd/sys/dev/ffec/if_ffecreg.h
@@ -317,7 +317,7 @@ struct ffec_hwdesc
  * The hardware imposes alignment restrictions on various objects involved in
  * DMA transfers.  These values are expressed in bytes (not bits).
  */
-#define	FEC_DESC_RING_ALIGN		16
+#define	FEC_DESC_RING_ALIGN		64
 #define	FEC_RXBUF_ALIGN			16
 #define	FEC_TXBUF_ALIGN			16