Changes between Version 15 and Version 16 of Component/Vci Master Nic

Timestamp:

Jul 26, 2020, 12:34:16 PM (4 years ago)

Author:

alain

Comment:

--

Component/Vci Master Nic

@@ -32 +32 @@
 The Ethernet packet length can have any value, in the range [42 to 2040] bytes.
 
-The minimal data transfer unit between software and the NIC is a 4K bytes '''container''',
-containing an integer number of variable size packets.
-The max number of packets in a container is 88 packets.
+The data transfer unit between software and the NIC is a 2K bytes '''container''',
+containing one single Ethernet packet.
 
 The received packets (RX) and the sent packets (TX) are stored in 
 two memory mapped software queues, called chained buffers, and defined by the ''nic_chbuf_s'' C structure. The number of containers, defining the queue depth, is a software defined parameter.
 The physical addresses are used by the hardware NIC DMA engines.
+The virtual addresses are used by the software NIC drivers.
 {{{
 struct nic_chbuf_s