39 lines
888 B
Python
39 lines
888 B
Python
from migen import *
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from migen.genlib.record import *
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from misoc.interconnect.csr import *
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from misoc.interconnect.stream import *
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class Port:
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def connect(self, port):
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r = [
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Record.connect(self.source, port.sink),
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Record.connect(port.source, self.sink)
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]
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return r
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eth_mtu = 1532
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eth_min_len = 46
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eth_interpacket_gap = 12
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eth_preamble = 0xD555555555555555
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buffer_depth = 2**log2_int(eth_mtu, need_pow2=False)
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def eth_phy_description(dw):
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payload_layout = [
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("data", dw),
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("last_be", dw//8),
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("error", dw//8)
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]
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return EndpointDescription(payload_layout, packetized=True)
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def eth_mac_description(dw):
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payload_layout = mac_header.get_layout() + [
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("data", dw),
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("last_be", dw//8),
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("error", dw//8)
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]
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return EndpointDescription(payload_layout, packetized=True)
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