Commit Graph
2 Commits
Author SHA1 Message Date
Wade Fife feb849051f fpga: lib: Add eth_ipv4_internal
This adds a generic version of eth_internal that allows you to specify
the CHDR width.


Original-commit: 30b522b268aed6e7b4bc1a556e88d2a4b2fe6f77
2021-06-03 11:26:54 -05:00
Andrew Moch 05eb1bc2f1 fpga: lib: Add width agnostic version of Ethernet Interface
The rnfoc/xport section is refactored in System Verilog to allow the
following improvements
(1) CPU_W - Sets the size of the c2e and e2c pipes.  This can be run
    at a different clock rate than the main ethernet pipe
(2) CHDR_W - Sets the size of the v2e and e2v pipes. This can be run
    at a different clock rate than the main ethernet pipe
(3) ENET_W - Sets the size of the eth_tx and eth_rx pipes.

eth_interface_tb runs traffic from e2c,e2v,v2e,c2e simultaneously
against the original xport_sv implementation, and against the new
implementation with widths of 64/128/512. A chdr_management node
info request queries the port info of the node0 in the eth_interface.

eth_ifc_synth_test.sv can be compiled with the make xsim target to test
out the size of various configurations.


Original-commit: eed4988cc266a63370a4332351d02fadedde3a3b
2020-06-30 10:29:35 -05:00