def __init__(self, udp_port=50000, dw=32):
self.sink = sink = Endpoint(K2MMPacket.packet_user_description(dw))
self.source = source = Endpoint(eth_udp_user_description(dw))
self.submodules.packetizer = packetizer = Packetizer(
K2MMPacket.packet_description(dw), source.description,
K2MMPacket.get_header(dw))
self.comb += [
sink.connect(packetizer.sink,
omit={"src_port", "dst_port", "ip_address",
"length"}),
packetizer.sink.version.eq(K2MMPacket.version),
packetizer.sink.magic.eq(K2MMPacket.magic),
packetizer.sink.addr_size.eq(64),
packetizer.sink.port_size.eq(dw // 8)
]
self.submodules.fsm = fsm = FSM(reset_state="IDLE")
fsm.act("IDLE", If(packetizer.source.valid, NextState("SEND")))
fsm.act(
"SEND", packetizer.source.connect(source),
source.src_port.eq(udp_port), source.dst_port.eq(udp_port),
source.ip_address.eq(sink.ip_address),
source.length.eq(sink.length + K2MMPacket.get_header(dw).length),
If(source.valid & source.last & source.ready, NextState("IDLE")))
def __init__(self, dw=8):
Packetizer.__init__(self, eth_udp_description(dw),
eth_ipv4_user_description(dw), udp_header)
def __init__(self, dw=8):
Packetizer.__init__(self, eth_ipv4_description(dw),
eth_mac_description(dw), ipv4_header)
def __init__(self, dw):
Packetizer.__init__(self, eth_mac_description(dw),
eth_phy_description(dw), mac_header)
def __init__(self, dw=8):
Packetizer.__init__(self, udp_fragmenter_description(dw),
eth_udp_user_description(dw), fragmenter_header)
def __init__(self, dw=8):
Packetizer.__init__(self, eth_arp_description(dw),
eth_mac_description(dw), arp_header)