ICRC tweak

For ICRC to function properly on send, the IPTX cannot be buffered

Author: Mikhail Iakimenko

liteeth/core/ip.py

@@ -265,8 +265,8 @@ def __init__(self, mac_address, ip_address, with_broadcast=True, dw=8):
 # IP -----------------------------------------------------------------------------------------------
 
 class LiteEthIP(LiteXModule):
-    def __init__(self, mac, mac_address, ip_address, arp_table, with_broadcast=True, dont_fragment=False, dw=8):
-        self.tx = tx = LiteEthIPTX(mac_address, ip_address, arp_table, dw=dw, dont_fragment=dont_fragment)
+    def __init__(self, mac, mac_address, ip_address, arp_table, with_broadcast=True, buffer_tx=True, dont_fragment=False, dw=8):
+        self.tx = tx = LiteEthIPTX(mac_address, ip_address, arp_table, dw=dw, with_buffer=buffer_tx, dont_fragment=dont_fragment)
         self.rx = rx = LiteEthIPRX(mac_address, ip_address, with_broadcast, dw=dw)
         mac_port = mac.crossbar.get_port(ethernet_type_ip, dw)
         self.comb += [

liteeth/core/rocev2/__init__.py

@@ -64,6 +64,7 @@ def __init__(self, phy, mac_address, ip_address, read_port, write_port, clk_freq
             with_broadcast = with_ip_broadcast,
             dw             = dw,
             dont_fragment  = True,
+            buffer_tx      = False,
         )
         # ICMP (Optional).
         # ----------------