PORT_CONFIG
wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000);
port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE;
wrlp(mp, PORT_CONFIG, port_config);
wrl(pep, PORT_CONFIG, PCR_HS); /* Hash size is 1/2kb */
val = rdl(pep, PORT_CONFIG);
wrl(pep, PORT_CONFIG, val);
val = rdl(pep, PORT_CONFIG);
wrl(pep, PORT_CONFIG, val);
val = rdl(pep, PORT_CONFIG);
wrl(pep, PORT_CONFIG, val);
u32 cfg, cfg_o = rdl(pep, PORT_CONFIG);
wrl(pep, PORT_CONFIG, cfg);