232 	bzr->za[MAX_B_FRAMES].z2 = bzr->za[MAX_B_FRAMES].z1;  in hfcpci_clear_fifo_rx()
258 	bzt->za[MAX_B_FRAMES].z2 = bzt->za[MAX_B_FRAMES].z1;  in hfcpci_clear_fifo_tx()
282 	new_z2 = zp->z2 + count;	/* new position in fifo */  in hfcpci_empty_fifo()
293 		bz->za[new_f2].z2 = new_z2;  in hfcpci_empty_fifo()
303 		if (zp->z2 + count <= B_FIFO_SIZE + B_SUB_VAL)  in hfcpci_empty_fifo()
306 			maxlen = B_FIFO_SIZE + B_SUB_VAL - zp->z2;	/* maximum */  in hfcpci_empty_fifo()
308 		ptr1 = bdata + (zp->z2 - B_SUB_VAL);	/* start of data */  in hfcpci_empty_fifo()
317 		bz->za[new_f2].z2 = new_z2;  in hfcpci_empty_fifo()
346 		rcnt = zp->z1 - zp->z2;  in receive_dmsg()
352 				df->f1, df->f2, zp->z1, zp->z2, rcnt);  in receive_dmsg()
362 			df->za[df->f2 & D_FREG_MASK].z2 = (zp->z2 + rcnt) & (D_FIFO_SIZE - 1);  in receive_dmsg()
368 			if (zp->z2 + rcnt <= D_FIFO_SIZE)  in receive_dmsg()
371 				maxlen = D_FIFO_SIZE - zp->z2;	/* maximum */  in receive_dmsg()
373 			ptr1 = df->data + zp->z2;	/* start of data */  in receive_dmsg()
383 			df->za[df->f2 & D_FREG_MASK].z2 = (zp->z2 + total) & (D_FIFO_SIZE - 1);  in receive_dmsg()
482 		rcnt = zp->z1 - zp->z2;  in main_rec_hfcpci()
488 				bcs->channel, zp->z1, zp->z2, rcnt);  in main_rec_hfcpci()
548 	count = df->za[df->f2 & D_FREG_MASK].z2 - df->za[df->f1 & D_FREG_MASK].z1 - 1;  in hfcpci_fill_dfifo()
679 	count = bz->za[bz->f2].z2 - bz->za[bz->f1].z1 - 1;  in hfcpci_fill_fifo()
854 		rcnt = zp->z1 - zp->z2;  in receive_emsg()
860 				zp->z1, zp->z2, rcnt);  in receive_emsg()
861 		new_z2 = zp->z2 + rcnt;		/* new position in fifo */  in receive_emsg()
869 			bz->za[new_f2].z2 = new_z2;  in receive_emsg()
876 			if (zp->z2 <= B_FIFO_SIZE + B_SUB_VAL)  in receive_emsg()
879 				maxlen = B_FIFO_SIZE + B_SUB_VAL - zp->z2;	/* maximum */  in receive_emsg()
881 			ptr1 = bdata + (zp->z2 - B_SUB_VAL);	/* start of data */  in receive_emsg()
890 			bz->za[new_f2].z2 = new_z2;  in receive_emsg()