dev/netmap/netmap.c

1478  * to the interface specified by req.
1488  * If the interface specified by req is a system one, also keep
1496 	struct nmreq_register *req = (struct nmreq_register *)(uintptr_t)hdr->nr_body;
1508 	if (req->nr_mode == NR_REG_PIPE_MASTER ||
1509 			req->nr_mode == NR_REG_PIPE_SLAVE) {
1520 	if (nmd == NULL && req->nr_mem_id) {
1521 		nmd = netmap_mem_find(req->nr_mem_id);
2457 			struct nmreq_register *req =
2492 				if (nmd == NULL && req->nr_mem_id) {
2494 					nmd = netmap_mem_find(req->nr_mem_id);
2498 									hdr->nr_name, req->nr_mem_id);
2514 				if (na->virt_hdr_len && !(req->nr_flags & NR_ACCEPT_VNET_HDR)) {
2521 				error = netmap_do_regif(priv, na, req->nr_mode,
2522 							req->nr_ringid, req->nr_flags);
2546 				req->nr_rx_rings = na->num_rx_rings;
2547 				req->nr_tx_rings = na->num_tx_rings;
2548 				req->nr_rx_slots = na->num_rx_desc;
2549 				req->nr_tx_slots = na->num_tx_desc;
2550 				error = netmap_mem_get_info(na->nm_mem, &req->nr_memsize, &memflags,
2551 					&req->nr_mem_id);
2564 				if (req->nr_extra_bufs) {
2567 							req->nr_extra_bufs);
2568 					req->nr_extra_bufs = netmap_extra_alloc(na,
2569 						&nifp->ni_bufs_head, req->nr_extra_bufs);
2571 						nm_prinf("got %d extra buffers", req->nr_extra_bufs);
2573 				req->nr_offset = netmap_mem_if_offset(na->nm_mem, nifp);
2597 			struct nmreq_port_info_get *req =
2611 					regreq.nr_tx_slots = req->nr_tx_slots;
2612 					regreq.nr_rx_slots = req->nr_rx_slots;
2613 					regreq.nr_tx_rings = req->nr_tx_rings;
2614 					regreq.nr_rx_rings = req->nr_rx_rings;
2615 					regreq.nr_mem_id = req->nr_mem_id;
2622 					hdr->nr_body = (uintptr_t)req; /* reset nr_body */
2630 					nmd = netmap_mem_find(req->nr_mem_id ? req->nr_mem_id : 1);
2635 									req->nr_mem_id ? req->nr_mem_id : 1);
2642 				error = netmap_mem_get_info(nmd, &req->nr_memsize, &memflags,
2643 					&req->nr_mem_id);
2649 				req->nr_rx_rings = na->num_rx_rings;
2650 				req->nr_tx_rings = na->num_tx_rings;
2651 				req->nr_rx_slots = na->num_rx_desc;
2652 				req->nr_tx_slots = na->num_tx_desc;
2677 			struct nmreq_port_hdr *req =
2688 			if (req->nr_hdr_len != 0 &&
2689 				req->nr_hdr_len != sizeof(struct nm_vnet_hdr) &&
2690 					req->nr_hdr_len != 12) {
2692 					nm_prerr("invalid hdr_len %u", req->nr_hdr_len);
2701 			hdr->nr_body = (uintptr_t)req;
2705 				na->virt_hdr_len = req->nr_hdr_len;
2721 			struct nmreq_port_hdr *req =
2735 			hdr->nr_body = (uintptr_t)req;
2737 				req->nr_hdr_len = na->virt_hdr_len;
2763 			struct nmreq_pools_info *req =
2771 				regreq.nr_mem_id = req->nr_mem_id;
2778 				hdr->nr_body = (uintptr_t)req; /* reset nr_body */
2796 				error = netmap_mem_pools_info_get(req, nmd);