Changes between Version 7 and Version 8 of mnc_driver

Timestamp:

Dec 20, 2016, 11:05:55 AM (8 years ago)

Author:

alain

Comment:

--

mnc_driver

@@ -21 +21 @@
 NB_PACKETS is the actual number of packets in the container, NB_WORDS is the number of useful words in the container, PLEN[i]  is the number of bytes for packet[i]. Packets are stored in the (1024 - 34) following words, and are word-aligned.
 
-Each 4 Kbytes container is protected by a SET/RESET synchronisation variable. To access both the container status, and the container itself, the NIC uses two physical addresses, that are packed in a 64 bits "container descriptor". 
- * desc[25:0]  contain bits[31:6] of the status physical address.
- * desc[51:26] contain bits[31:6] of the buffer physical address.
+Each 4 Kbytes container is protected by a SET/RESET ''status'' synchronisation variable. To access both the container status, and the container itself, the NIC uses two physical addresses, that are packed in a 64 bits "container descriptor". 
+ * desc[31:0]  contain bits[31:0] of the status physical address.
+ * desc[51:32] contain bits[31:12] of the buffer physical address.
  * desc[63:52] contain the common 12 physical address extension bits.