83 	void (*walk)(int sock, struct ring *ring);
113 	int ret, sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));  in pfsocket()  local
114 	if (sock == -1) {  in pfsocket()
119 	ret = setsockopt(sock, SOL_PACKET, PACKET_VERSION, &ver, sizeof(ver));  in pfsocket()
125 	return sock;  in pfsocket()
232 static void walk_v1_v2_rx(int sock, struct ring *ring)  in walk_v1_v2_rx()  argument
242 	pair_udp_setfilter(sock);  in walk_v1_v2_rx()
245 	pfd.fd = sock;  in walk_v1_v2_rx()
339 static void __v1_v2_set_packet_loss_discard(int sock)  in __v1_v2_set_packet_loss_discard()  argument
343 	ret = setsockopt(sock, SOL_PACKET, PACKET_LOSS, (void *) &discard,  in __v1_v2_set_packet_loss_discard()
351 static void walk_v1_v2_tx(int sock, struct ring *ring)  in walk_v1_v2_tx()  argument
383 	pfd.fd = sock;  in walk_v1_v2_tx()
431 	ret = sendto(sock, NULL, 0, 0, NULL, 0);  in walk_v1_v2_tx()
458 static void walk_v1_v2(int sock, struct ring *ring)  in walk_v1_v2()  argument
461 		walk_v1_v2_rx(sock, ring);  in walk_v1_v2()
463 		walk_v1_v2_tx(sock, ring);  in walk_v1_v2()
539 static void walk_v3_rx(int sock, struct ring *ring)  in walk_v3_rx()  argument
549 	pair_udp_setfilter(sock);  in walk_v3_rx()
552 	pfd.fd = sock;  in walk_v3_rx()
581 static void walk_v3(int sock, struct ring *ring)  in walk_v3()  argument
584 		walk_v3_rx(sock, ring);  in walk_v3()
625 static void setup_ring(int sock, struct ring *ring, int version, int type)  in setup_ring()  argument
637 			__v1_v2_set_packet_loss_discard(sock);  in setup_ring()
639 		ret = setsockopt(sock, SOL_PACKET, type, &ring->req,  in setup_ring()
645 		ret = setsockopt(sock, SOL_PACKET, type, &ring->req3,  in setup_ring()
666 static void mmap_ring(int sock, struct ring *ring)  in mmap_ring()  argument
671 			      MAP_SHARED | MAP_LOCKED | MAP_POPULATE, sock, 0);  in mmap_ring()
684 static void bind_ring(int sock, struct ring *ring)  in bind_ring()  argument
695 	ret = bind(sock, (struct sockaddr *) &ring->ll, sizeof(ring->ll));  in bind_ring()
702 static void walk_ring(int sock, struct ring *ring)  in walk_ring()  argument
704 	ring->walk(sock, ring);  in walk_ring()
707 static void unmap_ring(int sock, struct ring *ring)  in unmap_ring()  argument
760 	int sock;  in test_tpacket()  local
775 	sock = pfsocket(version);  in test_tpacket()
777 	setup_ring(sock, &ring, version, type);  in test_tpacket()
778 	mmap_ring(sock, &ring);  in test_tpacket()
779 	bind_ring(sock, &ring);  in test_tpacket()
780 	walk_ring(sock, &ring);  in test_tpacket()
781 	unmap_ring(sock, &ring);  in test_tpacket()
782 	close(sock);  in test_tpacket()