commit e48fdd9d90423d1530b49bbd61b4bbcb49198b33
author Edgar E. Iglesias <edgar.iglesias@xilinx.com> Thu Oct 11 04:19:24 2018 +0200
committer Peter Maydell <peter.maydell@linaro.org> Tue Oct 16 17:13:49 2018 +0100
tree ec8bc051df440eb48b2ccec976b4dc6a17965161
parent 8568313f3bdf4bc1de7ace0eb5b92343fc19f3c8

net: cadence_gem: Add support for extended descriptors

Add support for extended descriptors with optional 64bit
addressing and timestamping. QEMU will not yet provide
timestamps (always leaving the valid timestamp bit as zero).

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181011021931.4249-6-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

include/hw/net/cadence_gem.h

diff --git a/include/hw/net/cadence_gem.h b/include/hw/net/cadence_gem.h
index b33ef65..00dbf4f 100644
--- a/include/hw/net/cadence_gem.h
+++ b/include/hw/net/cadence_gem.h
@@ -33,7 +33,7 @@
 #define CADENCE_GEM_MAXREG        (0x00000800 / 4) /* Last valid GEM address */
 
 /* Max number of words in a DMA descriptor.  */
-#define DESC_MAX_NUM_WORDS              2
+#define DESC_MAX_NUM_WORDS              6
 
 #define MAX_PRIORITY_QUEUES             8
 #define MAX_TYPE1_SCREENERS             16