224 	struct nmreq req;	/* also contains the nr_name = ifname */  member
329 static struct nm_desc *nm_open(const char *ifname, const struct nmreq *req,
608 nm_open(const char *ifname, const struct nmreq *req,  in nm_open()  argument
631 	if (namelen >= sizeof(d->req.nr_name)) {  in nm_open()
743 	if (req)  in nm_open()
744 		d->req = *req;  in nm_open()
745 	d->req.nr_version = NETMAP_API;  in nm_open()
746 	d->req.nr_ringid &= ~NETMAP_RING_MASK;  in nm_open()
749 	d->req.nr_ringid |= nr_ringid;  in nm_open()
750 	d->req.nr_flags |= nr_flags;  in nm_open()
751 	memcpy(d->req.nr_name, ifname, namelen);  in nm_open()
752 	d->req.nr_name[namelen] = '\0';  in nm_open()
756 			D("overriding ARG1 %d", parent->req.nr_arg1);  in nm_open()
757 		d->req.nr_arg1 = new_flags & NM_OPEN_ARG1 ?  in nm_open()
758 			parent->req.nr_arg1 : 4;  in nm_open()
760 			D("overriding ARG2 %d", parent->req.nr_arg2);  in nm_open()
761 		d->req.nr_arg2 = new_flags & NM_OPEN_ARG2 ?  in nm_open()
762 			parent->req.nr_arg2 : 0;  in nm_open()
764 			D("overriding ARG3 %d", parent->req.nr_arg3);  in nm_open()
765 		d->req.nr_arg3 = new_flags & NM_OPEN_ARG3 ?  in nm_open()
766 			parent->req.nr_arg3 : 0;  in nm_open()
769 			d->req.nr_tx_slots = parent->req.nr_tx_slots;  in nm_open()
770 			d->req.nr_rx_slots = parent->req.nr_rx_slots;  in nm_open()
771 			d->req.nr_tx_rings = parent->req.nr_tx_rings;  in nm_open()
772 			d->req.nr_rx_rings = parent->req.nr_rx_rings;  in nm_open()
776 				parent->req.nr_name, parent->req.nr_ringid,  in nm_open()
777 				parent->req.nr_flags);  in nm_open()
778 			memcpy(d->req.nr_name, parent->req.nr_name,  in nm_open()
779 				sizeof(d->req.nr_name));  in nm_open()
780 			d->req.nr_ringid = parent->req.nr_ringid;  in nm_open()
781 			d->req.nr_flags = parent->req.nr_flags;  in nm_open()
785 	d->req.nr_ringid |= new_flags & (NETMAP_NO_TX_POLL | NETMAP_DO_RX_POLL);  in nm_open()
787 	if (ioctl(d->fd, NIOCREGIF, &d->req)) {  in nm_open()
798 	nr_reg = d->req.nr_flags & NR_REG_MASK;  in nm_open()
801 		d->first_tx_ring = d->last_tx_ring = d->req.nr_tx_rings;  in nm_open()
802 		d->first_rx_ring = d->last_rx_ring = d->req.nr_rx_rings;  in nm_open()
806 		d->last_tx_ring = d->req.nr_tx_rings - 1;  in nm_open()
807 		d->last_rx_ring = d->req.nr_rx_rings - 1;  in nm_open()
811 		d->last_tx_ring = d->req.nr_tx_rings;  in nm_open()
812 		d->last_rx_ring = d->req.nr_rx_rings;  in nm_open()
816 		d->first_rx_ring = d->last_rx_ring = d->req.nr_ringid & NETMAP_RING_MASK;  in nm_open()
827 		d->first_tx_ring, d->last_tx_ring, d->req.nr_tx_rings,  in nm_open()
828                 d->first_rx_ring, d->last_rx_ring, d->req.nr_rx_rings);  in nm_open()
829 	for (i = 0; i <= d->req.nr_tx_rings; i++) {  in nm_open()
833 	for (i = 0; i <= d->req.nr_rx_rings; i++) {  in nm_open()
884 	    parent->req.nr_arg2 == d->req.nr_arg2) {  in nm_mmap()
891 		d->memsize = d->req.nr_memsize;  in nm_mmap()
900 		struct netmap_if *nifp = NETMAP_IF(d->mem, d->req.nr_offset);  in nm_mmap()