From c6cfed629453e00fdc6d69fd6e90e0858e7decdd Mon Sep 17 00:00:00 2001 From: Florent Kermarrec Date: Mon, 23 Nov 2020 17:44:47 +0100 Subject: [PATCH] frontend/etherbone: expose buffer_depth to user. --- liteeth/frontend/etherbone.py | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/liteeth/frontend/etherbone.py b/liteeth/frontend/etherbone.py index 94ccc99..19bc422 100644 --- a/liteeth/frontend/etherbone.py +++ b/liteeth/frontend/etherbone.py @@ -323,7 +323,7 @@ class LiteEthEtherboneRecordSender(Module): class LiteEthEtherboneRecord(Module): - def __init__(self, endianness="big"): + def __init__(self, endianness="big", buffer_depth=4): self.sink = sink = stream.Endpoint(eth_etherbone_packet_user_description(32)) self.source = source = stream.Endpoint(eth_etherbone_packet_user_description(32)) @@ -331,7 +331,7 @@ class LiteEthEtherboneRecord(Module): # Receive record, decode it and generate mmap stream self.submodules.depacketizer = depacketizer = LiteEthEtherboneRecordDepacketizer() - self.submodules.receiver = receiver = LiteEthEtherboneRecordReceiver() + self.submodules.receiver = receiver = LiteEthEtherboneRecordReceiver(buffer_depth) self.comb += [ sink.connect(depacketizer.sink), depacketizer.source.connect(receiver.sink) @@ -352,7 +352,7 @@ class LiteEthEtherboneRecord(Module): ] # Receive MMAP stream, encode it and send records - self.submodules.sender = sender = LiteEthEtherboneRecordSender() + self.submodules.sender = sender = LiteEthEtherboneRecordSender(buffer_depth) self.submodules.packetizer = packetizer = LiteEthEtherboneRecordPacketizer() self.comb += [ sender.source.connect(packetizer.sink), @@ -495,13 +495,13 @@ class LiteEthEtherboneWishboneSlave(Module): # Etherbone ---------------------------------------------------------------------------------------- class LiteEthEtherbone(Module): - def __init__(self, udp, udp_port, mode="master", cd="sys"): + def __init__(self, udp, udp_port, mode="master", buffer_depth=4, cd="sys"): # Encode/encode etherbone packets self.submodules.packet = packet = LiteEthEtherbonePacket(udp, udp_port, cd) # Packets can be probe (etherbone discovering) or records with writes and reads self.submodules.probe = probe = LiteEthEtherboneProbe() - self.submodules.record = record = LiteEthEtherboneRecord() + self.submodules.record = record = LiteEthEtherboneRecord(buffer_depth=buffer_depth) # Arbitrate/dispatch probe/records packets dispatcher = Dispatcher(packet.source, [probe.sink, record.sink])