FW_FLOWC_WR_NPARAMS_V
FW_FLOWC_WR_NPARAMS_V(nparams));
FW_FLOWC_WR_NPARAMS_V(nparams) |
htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(nparams));