114 #define NETMAP_BUF(ring, index)				\  argument
115 	((char *)(ring) + (ring)->buf_ofs + ((index)*(ring)->nr_buf_size))
117 #define NETMAP_BUF_IDX(ring, buf)			\  argument
118 	( ((char *)(buf) - ((char *)(ring) + (ring)->buf_ofs) ) / \
119 		(ring)->nr_buf_size )
141 nm_ring_space(struct netmap_ring *ring)  in nm_ring_space()  argument
143         int ret = ring->tail - ring->cur;  in nm_ring_space()
145                 ret += ring->num_slots;  in nm_ring_space()
926 		struct netmap_ring *ring;  in nm_inject()  local
932 		ring = NETMAP_TXRING(d->nifp, ri);  in nm_inject()
933 		if (nm_ring_empty(ring)) {  in nm_inject()
936 		i = ring->cur;  in nm_inject()
937 		idx = ring->slot[i].buf_idx;  in nm_inject()
938 		ring->slot[i].len = size;  in nm_inject()
939 		nm_pkt_copy(buf, NETMAP_BUF(ring, idx), size);  in nm_inject()
941 		ring->head = ring->cur = nm_ring_next(ring, i);  in nm_inject()
965 		struct netmap_ring *ring;  in nm_dispatch()  local
970 		ring = NETMAP_RXRING(d->nifp, ri);  in nm_dispatch()
971 		for ( ; !nm_ring_empty(ring) && cnt != got; got++) {  in nm_dispatch()
972 			u_int i = ring->cur;  in nm_dispatch()
973 			u_int idx = ring->slot[i].buf_idx;  in nm_dispatch()
974 			u_char *buf = (u_char *)NETMAP_BUF(ring, idx);  in nm_dispatch()
977 			d->hdr.len = d->hdr.caplen = ring->slot[i].len;  in nm_dispatch()
978 			d->hdr.ts = ring->ts;  in nm_dispatch()
980 			ring->head = ring->cur = nm_ring_next(ring, i);  in nm_dispatch()
994 		struct netmap_ring *ring = NETMAP_RXRING(d->nifp, ri);  in nm_nextpkt()  local
995 		if (!nm_ring_empty(ring)) {  in nm_nextpkt()
996 			u_int i = ring->cur;  in nm_nextpkt()
997 			u_int idx = ring->slot[i].buf_idx;  in nm_nextpkt()
998 			u_char *buf = (u_char *)NETMAP_BUF(ring, idx);  in nm_nextpkt()
1001 			hdr->ts = ring->ts;  in nm_nextpkt()
1002 			hdr->len = hdr->caplen = ring->slot[i].len;  in nm_nextpkt()
1003 			ring->cur = nm_ring_next(ring, i);  in nm_nextpkt()
1008 			ring->head = ring->cur;  in nm_nextpkt()