BFI_DIAG_H2I_LOOPBACK
bfi_h2i_set(lb_req->mh, BFI_MC_DIAG, BFI_DIAG_H2I_LOOPBACK,
BFI_DIAG_I2H_LOOPBACK = BFA_I2HM(BFI_DIAG_H2I_LOOPBACK),