mi_sia_connectivity
mi->mi_sia_connectivity = dp[0] + dp[1] * 256;
mi->mi_sia_connectivity = dp[1] + dp[2] * 256;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, mi->mi_sia_connectivity);
(mi)->mi_sia_connectivity = TULIP_ ## chipid ## _SIACONN_ ## media; \