Merge branch 'bpf-xsk-sh-umem'

Tushar Vyavahare says:

====================
Implement a test for the SHARED_UMEM feature in this patch set and make
necessary changes/improvements. Ensure that the framework now supports
different streams for different sockets.

v2->v3:
- Set the sock_num at the end of the while loop.
- Declare xsk at the top of the while loop.

v1->v2:
- Remove generate_mac_addresses() and generate mac addresses based on
  the number of sockets in __test_spec_init() function. [Magnus]
- Update Makefile to include find_bit.c for compiling xskxceiver.
- Add bitmap_full() function to verify all bits are set to break the
  while loop in the receive_pkts() and send_pkts() functions.
- Replace __test_and_set_bit() function with __set_bit() function.
- Add single return check for wait_for_tx_completion() function call.

Patch series summary:

1: Move the packet stream from the ifobject struct to the xsk_socket_info
   struct to enable the use of different streams for different sockets
   This will facilitate the sending and receiving of data from multiple
   sockets simultaneously using the SHARED_XDP_UMEM feature.

   It gives flexibility of send/recive individual traffic on particular
   socket.

2: Rename the header file to a generic name so that it can be used by all
   future XDP programs.

3: Move the src_mac and dst_mac fields from the ifobject structure to the
   xsk_socket_info structure to achieve per-socket MAC address assignment.
   Require this in order to steer traffic to various sockets in subsequent
   patches.

4: Improve the receive_pkt() function to enable it to receive packets from
   multiple sockets. Define a sock_num variable to iterate through all the
   sockets in the Rx path. Add nb_valid_entries to check that all the
   expected number of packets are received.

5: The pkt_set() function no longer needs the umem parameter. This commit
   removes the umem parameter from the pkt_set() function.

6: Iterate over all the sockets in the send pkts function. Update
   send_pkts() to handle multiple sockets for sending packets. Multiple TX
   sockets are utilized alternately based on the batch size for improve
   packet transmission.

7: Modify xsk_update_xskmap() to accept the index as an argument, enabling
   the addition of multiple sockets to xskmap.

8: Add a new test for testing shared umem feature. This is accomplished by
   adding a new XDP program and using the multiple sockets. The new XDP
   program redirects the packets based on the destination MAC address.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

tools/testing/selftests/bpf/Makefile

@@ -641,7 +641,9 @@ $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 	$(call msg,BINARY,,$@)
 	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 
-$(OUTPUT)/xskxceiver: xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT)
+# Include find_bit.c to compile xskxceiver.
+EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c
+$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT)
 	$(call msg,BINARY,,$@)
 	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 

tools/testing/selftests/bpf/progs/xsk_xdp_progs.c

@@ -3,11 +3,12 @@
 
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
-#include "xsk_xdp_metadata.h"
+#include <linux/if_ether.h>
+#include "xsk_xdp_common.h"
 
 struct {
 	__uint(type, BPF_MAP_TYPE_XSKMAP);
-	__uint(max_entries, 1);
+	__uint(max_entries, 2);
 	__uint(key_size, sizeof(int));
 	__uint(value_size, sizeof(int));
 } xsk SEC(".maps");
@@ -52,4 +53,21 @@ SEC("xdp.frags") int xsk_xdp_populate_metadata(struct xdp_md *xdp)
 	return bpf_redirect_map(&xsk, 0, XDP_DROP);
 }
 
+SEC("xdp") int xsk_xdp_shared_umem(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	void *data_end = (void *)(long)xdp->data_end;
+	struct ethhdr *eth = data;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	/* Redirecting packets based on the destination MAC address */
+	idx = ((unsigned int)(eth->h_dest[5])) / 2;
+	if (idx > MAX_SOCKETS)
+		return XDP_DROP;
+
+	return bpf_redirect_map(&xsk, idx, XDP_DROP);
+}
+
 char _license[] SEC("license") = "GPL";

tools/testing/selftests/bpf/xsk.c

@@ -442,10 +442,9 @@ void xsk_clear_xskmap(struct bpf_map *map)
 	bpf_map_delete_elem(map_fd, &index);
 }
 
-int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk)
+int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index)
 {
 	int map_fd, sock_fd;
-	u32 index = 0;
 
 	map_fd = bpf_map__fd(map);
 	sock_fd = xsk_socket__fd(xsk);

tools/testing/selftests/bpf/xsk.h

@@ -204,7 +204,7 @@ struct xsk_umem_config {
 
 int xsk_attach_xdp_program(struct bpf_program *prog, int ifindex, u32 xdp_flags);
 void xsk_detach_xdp_program(int ifindex, u32 xdp_flags);
-int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk);
+int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index);
 void xsk_clear_xskmap(struct bpf_map *map);
 bool xsk_is_in_mode(u32 ifindex, int mode);
 

tools/testing/selftests/bpf/xsk_xdp_metadata.h → tools/testing/selftests/bpf/xsk_xdp_common.h

 /* SPDX-License-Identifier: GPL-2.0 */
 
+#ifndef XSK_XDP_COMMON_H_
+#define XSK_XDP_COMMON_H_
+
+#define MAX_SOCKETS 2
+
 struct xdp_info {
 	__u64 count;
 } __attribute__((aligned(32)));
+
+#endif /* XSK_XDP_COMMON_H_ */

tools/testing/selftests/bpf/xskxceiver.c

@@ -80,6 +80,7 @@
 #include <linux/if_ether.h>
 #include <linux/mman.h>
 #include <linux/netdev.h>
+#include <linux/bitmap.h>
 #include <arpa/inet.h>
 #include <net/if.h>
 #include <locale.h>
@@ -102,10 +103,7 @@
 #include <bpf/bpf.h>
 #include <linux/filter.h>
 #include "../kselftest.h"
-#include "xsk_xdp_metadata.h"
-
-static const char *MAC1 = "\x00\x0A\x56\x9E\xEE\x62";
-static const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61";
+#include "xsk_xdp_common.h"
 
 static bool opt_verbose;
 static bool opt_print_tests;
@@ -159,10 +157,10 @@ static void write_payload(void *dest, u32 pkt_nb, u32 start, u32 size)
 		ptr[i] = htonl(pkt_nb << 16 | (i + start));
 }
 
-static void gen_eth_hdr(struct ifobject *ifobject, struct ethhdr *eth_hdr)
+static void gen_eth_hdr(struct xsk_socket_info *xsk, struct ethhdr *eth_hdr)
 {
-	memcpy(eth_hdr->h_dest, ifobject->dst_mac, ETH_ALEN);
-	memcpy(eth_hdr->h_source, ifobject->src_mac, ETH_ALEN);
+	memcpy(eth_hdr->h_dest, xsk->dst_mac, ETH_ALEN);
+	memcpy(eth_hdr->h_source, xsk->src_mac, ETH_ALEN);
 	eth_hdr->h_proto = htons(ETH_P_LOOPBACK);
 }
 
@@ -260,7 +258,7 @@ static int __xsk_configure_socket(struct xsk_socket_info *xsk, struct xsk_umem_i
 	cfg.bind_flags = ifobject->bind_flags;
 	if (shared)
 		cfg.bind_flags |= XDP_SHARED_UMEM;
-	if (ifobject->pkt_stream && ifobject->mtu > MAX_ETH_PKT_SIZE)
+	if (ifobject->mtu > MAX_ETH_PKT_SIZE)
 		cfg.bind_flags |= XDP_USE_SG;
 
 	txr = ifobject->tx_on ? &xsk->tx : NULL;
@@ -429,11 +427,9 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
 		if (i == 0) {
 			ifobj->rx_on = false;
 			ifobj->tx_on = true;
-			ifobj->pkt_stream = test->tx_pkt_stream_default;
 		} else {
 			ifobj->rx_on = true;
 			ifobj->tx_on = false;
-			ifobj->pkt_stream = test->rx_pkt_stream_default;
 		}
 
 		memset(ifobj->umem, 0, sizeof(*ifobj->umem));
@@ -443,6 +439,15 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
 		for (j = 0; j < MAX_SOCKETS; j++) {
 			memset(&ifobj->xsk_arr[j], 0, sizeof(ifobj->xsk_arr[j]));
 			ifobj->xsk_arr[j].rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+			if (i == 0)
+				ifobj->xsk_arr[j].pkt_stream = test->tx_pkt_stream_default;
+			else
+				ifobj->xsk_arr[j].pkt_stream = test->rx_pkt_stream_default;
+
+			memcpy(ifobj->xsk_arr[j].src_mac, g_mac, ETH_ALEN);
+			memcpy(ifobj->xsk_arr[j].dst_mac, g_mac, ETH_ALEN);
+			ifobj->xsk_arr[j].src_mac[5] += ((j * 2) + 0);
+			ifobj->xsk_arr[j].dst_mac[5] += ((j * 2) + 1);
 		}
 	}
 
@@ -526,8 +531,10 @@ static int test_spec_set_mtu(struct test_spec *test, int mtu)
 
 static void pkt_stream_reset(struct pkt_stream *pkt_stream)
 {
-	if (pkt_stream)
+	if (pkt_stream) {
 		pkt_stream->current_pkt_nb = 0;
+		pkt_stream->nb_rx_pkts = 0;
+	}
 }
 
 static struct pkt *pkt_stream_get_next_tx_pkt(struct pkt_stream *pkt_stream)
@@ -557,17 +564,17 @@ static void pkt_stream_delete(struct pkt_stream *pkt_stream)
 
 static void pkt_stream_restore_default(struct test_spec *test)
 {
-	struct pkt_stream *tx_pkt_stream = test->ifobj_tx->pkt_stream;
-	struct pkt_stream *rx_pkt_stream = test->ifobj_rx->pkt_stream;
+	struct pkt_stream *tx_pkt_stream = test->ifobj_tx->xsk->pkt_stream;
+	struct pkt_stream *rx_pkt_stream = test->ifobj_rx->xsk->pkt_stream;
 
 	if (tx_pkt_stream != test->tx_pkt_stream_default) {
-		pkt_stream_delete(test->ifobj_tx->pkt_stream);
-		test->ifobj_tx->pkt_stream = test->tx_pkt_stream_default;
+		pkt_stream_delete(test->ifobj_tx->xsk->pkt_stream);
+		test->ifobj_tx->xsk->pkt_stream = test->tx_pkt_stream_default;
 	}
 
 	if (rx_pkt_stream != test->rx_pkt_stream_default) {
-		pkt_stream_delete(test->ifobj_rx->pkt_stream);
-		test->ifobj_rx->pkt_stream = test->rx_pkt_stream_default;
+		pkt_stream_delete(test->ifobj_rx->xsk->pkt_stream);
+		test->ifobj_rx->xsk->pkt_stream = test->rx_pkt_stream_default;
 	}
 }
 
@@ -627,14 +634,16 @@ static u32 pkt_nb_frags(u32 frame_size, struct pkt_stream *pkt_stream, struct pk
 	return nb_frags;
 }
 
-static void pkt_set(struct xsk_umem_info *umem, struct pkt *pkt, int offset, u32 len)
+static void pkt_set(struct pkt_stream *pkt_stream, struct pkt *pkt, int offset, u32 len)
 {
 	pkt->offset = offset;
 	pkt->len = len;
-	if (len > MAX_ETH_JUMBO_SIZE)
+	if (len > MAX_ETH_JUMBO_SIZE) {
 		pkt->valid = false;
-	else
+	} else {
 		pkt->valid = true;
+		pkt_stream->nb_valid_entries++;
+	}
 }
 
 static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len)
@@ -642,7 +651,7 @@ static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len)
 	return ceil_u32(len, umem->frame_size) * umem->frame_size;
 }
 
-static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb_pkts, u32 pkt_len)
+static struct pkt_stream *__pkt_stream_generate(u32 nb_pkts, u32 pkt_len, u32 nb_start, u32 nb_off)
 {
 	struct pkt_stream *pkt_stream;
 	u32 i;
@@ -656,41 +665,45 @@ static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb
 	for (i = 0; i < nb_pkts; i++) {
 		struct pkt *pkt = &pkt_stream->pkts[i];
 
-		pkt_set(umem, pkt, 0, pkt_len);
-		pkt->pkt_nb = i;
+		pkt_set(pkt_stream, pkt, 0, pkt_len);
+		pkt->pkt_nb = nb_start + i * nb_off;
 	}
 
 	return pkt_stream;
 }
 
-static struct pkt_stream *pkt_stream_clone(struct xsk_umem_info *umem,
-					   struct pkt_stream *pkt_stream)
+static struct pkt_stream *pkt_stream_generate(u32 nb_pkts, u32 pkt_len)
 {
-	return pkt_stream_generate(umem, pkt_stream->nb_pkts, pkt_stream->pkts[0].len);
+	return __pkt_stream_generate(nb_pkts, pkt_len, 0, 1);
+}
+
+static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream)
+{
+	return pkt_stream_generate(pkt_stream->nb_pkts, pkt_stream->pkts[0].len);
 }
 
 static void pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len)
 {
 	struct pkt_stream *pkt_stream;
 
-	pkt_stream = pkt_stream_generate(test->ifobj_tx->umem, nb_pkts, pkt_len);
-	test->ifobj_tx->pkt_stream = pkt_stream;
-	pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, nb_pkts, pkt_len);
-	test->ifobj_rx->pkt_stream = pkt_stream;
+	pkt_stream = pkt_stream_generate(nb_pkts, pkt_len);
+	test->ifobj_tx->xsk->pkt_stream = pkt_stream;
+	pkt_stream = pkt_stream_generate(nb_pkts, pkt_len);
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream;
 }
 
 static void __pkt_stream_replace_half(struct ifobject *ifobj, u32 pkt_len,
 				      int offset)
 {
-	struct xsk_umem_info *umem = ifobj->umem;
 	struct pkt_stream *pkt_stream;
 	u32 i;
 
-	pkt_stream = pkt_stream_clone(umem, ifobj->pkt_stream);
-	for (i = 1; i < ifobj->pkt_stream->nb_pkts; i += 2)
-		pkt_set(umem, &pkt_stream->pkts[i], offset, pkt_len);
+	pkt_stream = pkt_stream_clone(ifobj->xsk->pkt_stream);
+	for (i = 1; i < ifobj->xsk->pkt_stream->nb_pkts; i += 2)
+		pkt_set(pkt_stream, &pkt_stream->pkts[i], offset, pkt_len);
 
-	ifobj->pkt_stream = pkt_stream;
+	ifobj->xsk->pkt_stream = pkt_stream;
+	pkt_stream->nb_valid_entries /= 2;
 }
 
 static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int offset)
@@ -701,15 +714,34 @@ static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int off
 
 static void pkt_stream_receive_half(struct test_spec *test)
 {
-	struct xsk_umem_info *umem = test->ifobj_rx->umem;
-	struct pkt_stream *pkt_stream = test->ifobj_tx->pkt_stream;
+	struct pkt_stream *pkt_stream = test->ifobj_tx->xsk->pkt_stream;
 	u32 i;
 
-	test->ifobj_rx->pkt_stream = pkt_stream_generate(umem, pkt_stream->nb_pkts,
-							 pkt_stream->pkts[0].len);
-	pkt_stream = test->ifobj_rx->pkt_stream;
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(pkt_stream->nb_pkts,
+							      pkt_stream->pkts[0].len);
+	pkt_stream = test->ifobj_rx->xsk->pkt_stream;
 	for (i = 1; i < pkt_stream->nb_pkts; i += 2)
 		pkt_stream->pkts[i].valid = false;
+
+	pkt_stream->nb_valid_entries /= 2;
+}
+
+static void pkt_stream_even_odd_sequence(struct test_spec *test)
+{
+	struct pkt_stream *pkt_stream;
+	u32 i;
+
+	for (i = 0; i < test->nb_sockets; i++) {
+		pkt_stream = test->ifobj_tx->xsk_arr[i].pkt_stream;
+		pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
+						   pkt_stream->pkts[0].len, i, 2);
+		test->ifobj_tx->xsk_arr[i].pkt_stream = pkt_stream;
+
+		pkt_stream = test->ifobj_rx->xsk_arr[i].pkt_stream;
+		pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
+						   pkt_stream->pkts[0].len, i, 2);
+		test->ifobj_rx->xsk_arr[i].pkt_stream = pkt_stream;
+	}
 }
 
 static u64 pkt_get_addr(struct pkt *pkt, struct xsk_umem_info *umem)
@@ -724,16 +756,16 @@ static void pkt_stream_cancel(struct pkt_stream *pkt_stream)
 	pkt_stream->current_pkt_nb--;
 }
 
-static void pkt_generate(struct ifobject *ifobject, u64 addr, u32 len, u32 pkt_nb,
-			 u32 bytes_written)
+static void pkt_generate(struct xsk_socket_info *xsk, struct xsk_umem_info *umem, u64 addr, u32 len,
+			 u32 pkt_nb, u32 bytes_written)
 {
-	void *data = xsk_umem__get_data(ifobject->umem->buffer, addr);
+	void *data = xsk_umem__get_data(umem->buffer, addr);
 
 	if (len < MIN_PKT_SIZE)
 		return;
 
 	if (!bytes_written) {
-		gen_eth_hdr(ifobject, data);
+		gen_eth_hdr(xsk, data);
 
 		len -= PKT_HDR_SIZE;
 		data += PKT_HDR_SIZE;
@@ -783,6 +815,10 @@ static struct pkt_stream *__pkt_stream_generate_custom(struct ifobject *ifobj, s
 
 		if (pkt->valid && pkt->len > pkt_stream->max_pkt_len)
 			pkt_stream->max_pkt_len = pkt->len;
+
+		if (pkt->valid)
+			pkt_stream->nb_valid_entries++;
+
 		pkt_nb++;
 	}
 
@@ -796,10 +832,10 @@ static void pkt_stream_generate_custom(struct test_spec *test, struct pkt *pkts,
 	struct pkt_stream *pkt_stream;
 
 	pkt_stream = __pkt_stream_generate_custom(test->ifobj_tx, pkts, nb_pkts, true);
-	test->ifobj_tx->pkt_stream = pkt_stream;
+	test->ifobj_tx->xsk->pkt_stream = pkt_stream;
 
 	pkt_stream = __pkt_stream_generate_custom(test->ifobj_rx, pkts, nb_pkts, false);
-	test->ifobj_rx->pkt_stream = pkt_stream;
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream;
 }
 
 static void pkt_print_data(u32 *data, u32 cnt)
@@ -1004,145 +1040,190 @@ static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
 	return TEST_PASS;
 }
 
-static int receive_pkts(struct test_spec *test, struct pollfd *fds)
+static int __receive_pkts(struct test_spec *test, struct xsk_socket_info *xsk)
 {
-	struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0};
-	struct pkt_stream *pkt_stream = test->ifobj_rx->pkt_stream;
-	struct xsk_socket_info *xsk = test->ifobj_rx->xsk;
+	u32 frags_processed = 0, nb_frags = 0, pkt_len = 0;
 	u32 idx_rx = 0, idx_fq = 0, rcvd, pkts_sent = 0;
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
 	struct ifobject *ifobj = test->ifobj_rx;
 	struct xsk_umem_info *umem = xsk->umem;
+	struct pollfd fds = { };
 	struct pkt *pkt;
+	u64 first_addr;
 	int ret;
 
-	ret = gettimeofday(&tv_now, NULL);
-	if (ret)
-		exit_with_error(errno);
-	timeradd(&tv_now, &tv_timeout, &tv_end);
-
-	pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent);
-	while (pkt) {
-		u32 frags_processed = 0, nb_frags = 0, pkt_len = 0;
-		u64 first_addr;
+	fds.fd = xsk_socket__fd(xsk->xsk);
+	fds.events = POLLIN;
 
-		ret = gettimeofday(&tv_now, NULL);
-		if (ret)
-			exit_with_error(errno);
-		if (timercmp(&tv_now, &tv_end, >)) {
-			ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__);
-			return TEST_FAILURE;
-		}
+	ret = kick_rx(xsk);
+	if (ret)
+		return TEST_FAILURE;
 
-		ret = kick_rx(xsk);
-		if (ret)
+	if (ifobj->use_poll) {
+		ret = poll(&fds, 1, POLL_TMOUT);
+		if (ret < 0)
 			return TEST_FAILURE;
 
-		if (ifobj->use_poll) {
-			ret = poll(fds, 1, POLL_TMOUT);
-			if (ret < 0)
-				return TEST_FAILURE;
-
-			if (!ret) {
-				if (!is_umem_valid(test->ifobj_tx))
-					return TEST_PASS;
-
-				ksft_print_msg("ERROR: [%s] Poll timed out\n", __func__);
-				return TEST_FAILURE;
-			}
+		if (!ret) {
+			if (!is_umem_valid(test->ifobj_tx))
+				return TEST_PASS;
 
-			if (!(fds->revents & POLLIN))
-				continue;
+			ksft_print_msg("ERROR: [%s] Poll timed out\n", __func__);
+			return TEST_CONTINUE;
 		}
 
-		rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
-		if (!rcvd)
-			continue;
+		if (!(fds.revents & POLLIN))
+			return TEST_CONTINUE;
+	}
 
-		if (ifobj->use_fill_ring) {
-			ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
-			while (ret != rcvd) {
-				if (xsk_ring_prod__needs_wakeup(&umem->fq)) {
-					ret = poll(fds, 1, POLL_TMOUT);
-					if (ret < 0)
-						return TEST_FAILURE;
-				}
-				ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
+	rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
+	if (!rcvd)
+		return TEST_CONTINUE;
+
+	if (ifobj->use_fill_ring) {
+		ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
+		while (ret != rcvd) {
+			if (xsk_ring_prod__needs_wakeup(&umem->fq)) {
+				ret = poll(&fds, 1, POLL_TMOUT);
+				if (ret < 0)
+					return TEST_FAILURE;
 			}
+			ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
 		}
+	}
 
-		while (frags_processed < rcvd) {
-			const struct xdp_desc *desc = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++);
-			u64 addr = desc->addr, orig;
+	while (frags_processed < rcvd) {
+		const struct xdp_desc *desc = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++);
+		u64 addr = desc->addr, orig;
 
-			orig = xsk_umem__extract_addr(addr);
-			addr = xsk_umem__add_offset_to_addr(addr);
+		orig = xsk_umem__extract_addr(addr);
+		addr = xsk_umem__add_offset_to_addr(addr);
 
+		if (!nb_frags) {
+			pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent);
 			if (!pkt) {
 				ksft_print_msg("[%s] received too many packets addr: %lx len %u\n",
 					       __func__, addr, desc->len);
 				return TEST_FAILURE;
 			}
+		}
 
-			print_verbose("Rx: addr: %lx len: %u options: %u pkt_nb: %u valid: %u\n",
-				      addr, desc->len, desc->options, pkt->pkt_nb, pkt->valid);
+		print_verbose("Rx: addr: %lx len: %u options: %u pkt_nb: %u valid: %u\n",
+			      addr, desc->len, desc->options, pkt->pkt_nb, pkt->valid);
 
-			if (!is_frag_valid(umem, addr, desc->len, pkt->pkt_nb, pkt_len) ||
-			    !is_offset_correct(umem, pkt, addr) ||
-			    (ifobj->use_metadata && !is_metadata_correct(pkt, umem->buffer, addr)))
-				return TEST_FAILURE;
+		if (!is_frag_valid(umem, addr, desc->len, pkt->pkt_nb, pkt_len) ||
+		    !is_offset_correct(umem, pkt, addr) || (ifobj->use_metadata &&
+		    !is_metadata_correct(pkt, umem->buffer, addr)))
+			return TEST_FAILURE;
 
-			if (!nb_frags++)
-				first_addr = addr;
-			frags_processed++;
-			pkt_len += desc->len;
-			if (ifobj->use_fill_ring)
-				*xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) = orig;
+		if (!nb_frags++)
+			first_addr = addr;
+		frags_processed++;
+		pkt_len += desc->len;
+		if (ifobj->use_fill_ring)
+			*xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) = orig;
 
-			if (pkt_continues(desc->options))
-				continue;
+		if (pkt_continues(desc->options))
+			continue;
 
-			/* The complete packet has been received */
-			if (!is_pkt_valid(pkt, umem->buffer, first_addr, pkt_len) ||
-			    !is_offset_correct(umem, pkt, addr))
-				return TEST_FAILURE;
+		/* The complete packet has been received */
+		if (!is_pkt_valid(pkt, umem->buffer, first_addr, pkt_len) ||
+		    !is_offset_correct(umem, pkt, addr))
+			return TEST_FAILURE;
 
-			pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent);
-			nb_frags = 0;
-			pkt_len = 0;
-		}
+		pkt_stream->nb_rx_pkts++;
+		nb_frags = 0;
+		pkt_len = 0;
+	}
 
-		if (nb_frags) {
-			/* In the middle of a packet. Start over from beginning of packet. */
-			idx_rx -= nb_frags;
-			xsk_ring_cons__cancel(&xsk->rx, nb_frags);
-			if (ifobj->use_fill_ring) {
-				idx_fq -= nb_frags;
-				xsk_ring_prod__cancel(&umem->fq, nb_frags);
-			}
-			frags_processed -= nb_frags;
+	if (nb_frags) {
+		/* In the middle of a packet. Start over from beginning of packet. */
+		idx_rx -= nb_frags;
+		xsk_ring_cons__cancel(&xsk->rx, nb_frags);
+		if (ifobj->use_fill_ring) {
+			idx_fq -= nb_frags;
+			xsk_ring_prod__cancel(&umem->fq, nb_frags);
 		}
+		frags_processed -= nb_frags;
+	}
 
-		if (ifobj->use_fill_ring)
-			xsk_ring_prod__submit(&umem->fq, frags_processed);
-		if (ifobj->release_rx)
-			xsk_ring_cons__release(&xsk->rx, frags_processed);
+	if (ifobj->use_fill_ring)
+		xsk_ring_prod__submit(&umem->fq, frags_processed);
+	if (ifobj->release_rx)
+		xsk_ring_cons__release(&xsk->rx, frags_processed);
+
+	pthread_mutex_lock(&pacing_mutex);
+	pkts_in_flight -= pkts_sent;
+	pthread_mutex_unlock(&pacing_mutex);
+	pkts_sent = 0;
 
-		pthread_mutex_lock(&pacing_mutex);
-		pkts_in_flight -= pkts_sent;
-		pthread_mutex_unlock(&pacing_mutex);
-		pkts_sent = 0;
+return TEST_CONTINUE;
+}
+
+bool all_packets_received(struct test_spec *test, struct xsk_socket_info *xsk, u32 sock_num,
+			  unsigned long *bitmap)
+{
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
+
+	if (!pkt_stream) {
+		__set_bit(sock_num, bitmap);
+		return false;
+	}
+
+	if (pkt_stream->nb_rx_pkts == pkt_stream->nb_valid_entries) {
+		__set_bit(sock_num, bitmap);
+		if (bitmap_full(bitmap, test->nb_sockets))
+			return true;
+	}
+
+	return false;
+}
+
+static int receive_pkts(struct test_spec *test)
+{
+	struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0};
+	DECLARE_BITMAP(bitmap, test->nb_sockets);
+	struct xsk_socket_info *xsk;
+	u32 sock_num = 0;
+	int res, ret;
+
+	ret = gettimeofday(&tv_now, NULL);
+	if (ret)
+		exit_with_error(errno);
+
+	timeradd(&tv_now, &tv_timeout, &tv_end);
+
+	while (1) {
+		xsk = &test->ifobj_rx->xsk_arr[sock_num];
+
+		if ((all_packets_received(test, xsk, sock_num, bitmap)))
+			break;
+
+		res = __receive_pkts(test, xsk);
+		if (!(res == TEST_PASS || res == TEST_CONTINUE))
+			return res;
+
+		ret = gettimeofday(&tv_now, NULL);
+		if (ret)
+			exit_with_error(errno);
+
+		if (timercmp(&tv_now, &tv_end, >)) {
+			ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__);
+			return TEST_FAILURE;
+		}
+		sock_num = (sock_num + 1) % test->nb_sockets;
 	}
 
 	return TEST_PASS;
 }
 
-static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeout)
+static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, bool timeout)
 {
 	u32 i, idx = 0, valid_pkts = 0, valid_frags = 0, buffer_len;
-	struct pkt_stream *pkt_stream = ifobject->pkt_stream;
-	struct xsk_socket_info *xsk = ifobject->xsk;
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
 	struct xsk_umem_info *umem = ifobject->umem;
 	bool use_poll = ifobject->use_poll;
+	struct pollfd fds = { };
 	int ret;
 
 	buffer_len = pkt_get_buffer_len(umem, pkt_stream->max_pkt_len);
@@ -1154,9 +1235,12 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo
 		return TEST_CONTINUE;
 	}
 
+	fds.fd = xsk_socket__fd(xsk->xsk);
+	fds.events = POLLOUT;
+
 	while (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) < BATCH_SIZE) {
 		if (use_poll) {
-			ret = poll(fds, 1, POLL_TMOUT);
+			ret = poll(&fds, 1, POLL_TMOUT);
 			if (timeout) {
 				if (ret < 0) {
 					ksft_print_msg("ERROR: [%s] Poll error %d\n",
@@ -1207,7 +1291,7 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo
 				tx_desc->options = 0;
 			}
 			if (pkt->valid)
-				pkt_generate(ifobject, tx_desc->addr, tx_desc->len, pkt->pkt_nb,
+				pkt_generate(xsk, umem, tx_desc->addr, tx_desc->len, pkt->pkt_nb,
 					     bytes_written);
 			bytes_written += tx_desc->len;
 
@@ -1235,7 +1319,7 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo
 	xsk->outstanding_tx += valid_frags;
 
 	if (use_poll) {
-		ret = poll(fds, 1, POLL_TMOUT);
+		ret = poll(&fds, 1, POLL_TMOUT);
 		if (ret <= 0) {
 			if (ret == 0 && timeout)
 				return TEST_PASS;
@@ -1281,27 +1365,43 @@ static int wait_for_tx_completion(struct xsk_socket_info *xsk)
 	return TEST_PASS;
 }
 
+bool all_packets_sent(struct test_spec *test, unsigned long *bitmap)
+{
+	return bitmap_full(bitmap, test->nb_sockets);
+}
+
 static int send_pkts(struct test_spec *test, struct ifobject *ifobject)
 {
-	struct pkt_stream *pkt_stream = ifobject->pkt_stream;
 	bool timeout = !is_umem_valid(test->ifobj_rx);
-	struct pollfd fds = { };
-	u32 ret;
+	DECLARE_BITMAP(bitmap, test->nb_sockets);
+	u32 i, ret;
 
-	fds.fd = xsk_socket__fd(ifobject->xsk->xsk);
-	fds.events = POLLOUT;
+	while (!(all_packets_sent(test, bitmap))) {
+		for (i = 0; i < test->nb_sockets; i++) {
+			struct pkt_stream *pkt_stream;
 
-	while (pkt_stream->current_pkt_nb < pkt_stream->nb_pkts) {
-		ret = __send_pkts(ifobject, &fds, timeout);
-		if (ret == TEST_CONTINUE && !test->fail)
-			continue;
-		if ((ret || test->fail) && !timeout)
-			return TEST_FAILURE;
-		if (ret == TEST_PASS && timeout)
-			return ret;
+			pkt_stream = ifobject->xsk_arr[i].pkt_stream;
+			if (!pkt_stream || pkt_stream->current_pkt_nb >= pkt_stream->nb_pkts) {
+				__set_bit(i, bitmap);
+				continue;
+			}
+			ret = __send_pkts(ifobject, &ifobject->xsk_arr[i], timeout);
+			if (ret == TEST_CONTINUE && !test->fail)
+				continue;
+
+			if ((ret || test->fail) && !timeout)
+				return TEST_FAILURE;
+
+			if (ret == TEST_PASS && timeout)
+				return ret;
+
+			ret = wait_for_tx_completion(&ifobject->xsk_arr[i]);
+			if (ret)
+				return TEST_FAILURE;
+		}
 	}
 
-	return wait_for_tx_completion(ifobject->xsk);
+	return TEST_PASS;
 }
 
 static int get_xsk_stats(struct xsk_socket *xsk, struct xdp_statistics *stats)
@@ -1347,8 +1447,8 @@ static int validate_rx_dropped(struct ifobject *ifobject)
 	 * packet being invalid). Since the last packet may or may not have
 	 * been dropped already, both outcomes must be allowed.
 	 */
-	if (stats.rx_dropped == ifobject->pkt_stream->nb_pkts / 2 ||
-	    stats.rx_dropped == ifobject->pkt_stream->nb_pkts / 2 - 1)
+	if (stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 ||
+	    stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 - 1)
 		return TEST_PASS;
 
 	return TEST_FAILURE;
@@ -1412,9 +1512,10 @@ static int validate_tx_invalid_descs(struct ifobject *ifobject)
 		return TEST_FAILURE;
 	}
 
-	if (stats.tx_invalid_descs != ifobject->pkt_stream->nb_pkts / 2) {
+	if (stats.tx_invalid_descs != ifobject->xsk->pkt_stream->nb_pkts / 2) {
 		ksft_print_msg("[%s] tx_invalid_descs incorrect. Got [%u] expected [%u]\n",
-			       __func__, stats.tx_invalid_descs, ifobject->pkt_stream->nb_pkts);
+			       __func__, stats.tx_invalid_descs,
+			       ifobject->xsk->pkt_stream->nb_pkts);
 		return TEST_FAILURE;
 	}
 
@@ -1506,6 +1607,7 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
 	void *bufs;
 	int ret;
+	u32 i;
 
 	if (ifobject->umem->unaligned_mode)
 		mmap_flags |= MAP_HUGETLB | MAP_HUGE_2MB;
@@ -1528,11 +1630,14 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 	if (!ifobject->rx_on)
 		return;
 
-	xsk_populate_fill_ring(ifobject->umem, ifobject->pkt_stream, ifobject->use_fill_ring);
+	xsk_populate_fill_ring(ifobject->umem, ifobject->xsk->pkt_stream, ifobject->use_fill_ring);
 
-	ret = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk);
-	if (ret)
-		exit_with_error(errno);
+	for (i = 0; i < test->nb_sockets; i++) {
+		ifobject->xsk = &ifobject->xsk_arr[i];
+		ret = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, i);
+		if (ret)
+			exit_with_error(errno);
+	}
 }
 
 static void *worker_testapp_validate_tx(void *arg)
@@ -1562,14 +1667,13 @@ static void *worker_testapp_validate_rx(void *arg)
 {
 	struct test_spec *test = (struct test_spec *)arg;
 	struct ifobject *ifobject = test->ifobj_rx;
-	struct pollfd fds = { };
 	int err;
 
 	if (test->current_step == 1) {
 		thread_common_ops(test, ifobject);
 	} else {
 		xsk_clear_xskmap(ifobject->xskmap);
-		err = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk);
+		err = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, 0);
 		if (err) {
 			ksft_print_msg("Error: Failed to update xskmap, error %s\n",
 				       strerror(-err));
@@ -1577,12 +1681,9 @@ static void *worker_testapp_validate_rx(void *arg)
 		}
 	}
 
-	fds.fd = xsk_socket__fd(ifobject->xsk->xsk);
-	fds.events = POLLIN;
-
 	pthread_barrier_wait(&barr);
 
-	err = receive_pkts(test, &fds);
+	err = receive_pkts(test);
 
 	if (!err && ifobject->validation_func)
 		err = ifobject->validation_func(ifobject);
@@ -1691,11 +1792,11 @@ static int __testapp_validate_traffic(struct test_spec *test, struct ifobject *i
 	if (ifobj2) {
 		if (pthread_barrier_init(&barr, NULL, 2))
 			exit_with_error(errno);
-		pkt_stream_reset(ifobj2->pkt_stream);
+		pkt_stream_reset(ifobj2->xsk->pkt_stream);
 	}
 
 	test->current_step++;
-	pkt_stream_reset(ifobj1->pkt_stream);
+	pkt_stream_reset(ifobj1->xsk->pkt_stream);
 	pkts_in_flight = 0;
 
 	signal(SIGUSR1, handler);
@@ -1719,9 +1820,15 @@ static int __testapp_validate_traffic(struct test_spec *test, struct ifobject *i
 		pthread_join(t0, NULL);
 
 	if (test->total_steps == test->current_step || test->fail) {
+		u32 i;
+
 		if (ifobj2)
-			xsk_socket__delete(ifobj2->xsk->xsk);
-		xsk_socket__delete(ifobj1->xsk->xsk);
+			for (i = 0; i < test->nb_sockets; i++)
+				xsk_socket__delete(ifobj2->xsk_arr[i].xsk);
+
+		for (i = 0; i < test->nb_sockets; i++)
+			xsk_socket__delete(ifobj1->xsk_arr[i].xsk);
+
 		testapp_clean_xsk_umem(ifobj1);
 		if (ifobj2 && !ifobj2->shared_umem)
 			testapp_clean_xsk_umem(ifobj2);
@@ -1793,16 +1900,18 @@ static int testapp_bidirectional(struct test_spec *test)
 	return res;
 }
 
-static int swap_xsk_resources(struct ifobject *ifobj_tx, struct ifobject *ifobj_rx)
+static int swap_xsk_resources(struct test_spec *test)
 {
 	int ret;
 
-	xsk_socket__delete(ifobj_tx->xsk->xsk);
-	xsk_socket__delete(ifobj_rx->xsk->xsk);
-	ifobj_tx->xsk = &ifobj_tx->xsk_arr[1];
-	ifobj_rx->xsk = &ifobj_rx->xsk_arr[1];
+	test->ifobj_tx->xsk_arr[0].pkt_stream = NULL;
+	test->ifobj_rx->xsk_arr[0].pkt_stream = NULL;
+	test->ifobj_tx->xsk_arr[1].pkt_stream = test->tx_pkt_stream_default;
+	test->ifobj_rx->xsk_arr[1].pkt_stream = test->rx_pkt_stream_default;
+	test->ifobj_tx->xsk = &test->ifobj_tx->xsk_arr[1];
+	test->ifobj_rx->xsk = &test->ifobj_rx->xsk_arr[1];
 
-	ret = xsk_update_xskmap(ifobj_rx->xskmap, ifobj_rx->xsk->xsk);
+	ret = xsk_update_xskmap(test->ifobj_rx->xskmap, test->ifobj_rx->xsk->xsk, 0);
 	if (ret)
 		return TEST_FAILURE;
 
@@ -1816,7 +1925,7 @@ static int testapp_xdp_prog_cleanup(struct test_spec *test)
 	if (testapp_validate_traffic(test))
 		return TEST_FAILURE;
 
-	if (swap_xsk_resources(test->ifobj_tx, test->ifobj_rx))
+	if (swap_xsk_resources(test))
 		return TEST_FAILURE;
 	return testapp_validate_traffic(test);
 }
@@ -1852,8 +1961,7 @@ static int testapp_stats_tx_invalid_descs(struct test_spec *test)
 static int testapp_stats_rx_full(struct test_spec *test)
 {
 	pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
-	test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
-							 DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
 
 	test->ifobj_rx->xsk->rxqsize = DEFAULT_UMEM_BUFFERS;
 	test->ifobj_rx->release_rx = false;
@@ -1864,8 +1972,7 @@ static int testapp_stats_rx_full(struct test_spec *test)
 static int testapp_stats_fill_empty(struct test_spec *test)
 {
 	pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
-	test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
-							 DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
 
 	test->ifobj_rx->use_fill_ring = false;
 	test->ifobj_rx->validation_func = validate_fill_empty;
@@ -2031,6 +2138,23 @@ static int testapp_xdp_metadata_copy(struct test_spec *test)
 	return testapp_validate_traffic(test);
 }
 
+static int testapp_xdp_shared_umem(struct test_spec *test)
+{
+	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
+	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
+
+	test->total_steps = 1;
+	test->nb_sockets = 2;
+
+	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_shared_umem,
+			       skel_tx->progs.xsk_xdp_shared_umem,
+			       skel_rx->maps.xsk, skel_tx->maps.xsk);
+
+	pkt_stream_even_odd_sequence(test);
+
+	return testapp_validate_traffic(test);
+}
+
 static int testapp_poll_txq_tmout(struct test_spec *test)
 {
 	test->ifobj_tx->use_poll = true;
@@ -2117,15 +2241,11 @@ static bool hugepages_present(void)
 	return true;
 }
 
-static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *src_mac,
-		       thread_func_t func_ptr)
+static void init_iface(struct ifobject *ifobj, thread_func_t func_ptr)
 {
 	LIBBPF_OPTS(bpf_xdp_query_opts, query_opts);
 	int err;
 
-	memcpy(ifobj->dst_mac, dst_mac, ETH_ALEN);
-	memcpy(ifobj->src_mac, src_mac, ETH_ALEN);
-
 	ifobj->func_ptr = func_ptr;
 
 	err = xsk_load_xdp_programs(ifobj);
@@ -2336,6 +2456,7 @@ static const struct test_spec tests[] = {
 	{.name = "STAT_FILL_EMPTY", .test_func = testapp_stats_fill_empty},
 	{.name = "XDP_PROG_CLEANUP", .test_func = testapp_xdp_prog_cleanup},
 	{.name = "XDP_DROP_HALF", .test_func = testapp_xdp_drop},
+	{.name = "XDP_SHARED_UMEM", .test_func = testapp_xdp_shared_umem},
 	{.name = "XDP_METADATA_COPY", .test_func = testapp_xdp_metadata},
 	{.name = "XDP_METADATA_COPY_MULTI_BUFF", .test_func = testapp_xdp_metadata_mb},
 	{.name = "SEND_RECEIVE_9K_PACKETS", .test_func = testapp_send_receive_mb},
@@ -2401,12 +2522,12 @@ int main(int argc, char **argv)
 			modes++;
 	}
 
-	init_iface(ifobj_rx, MAC1, MAC2, worker_testapp_validate_rx);
-	init_iface(ifobj_tx, MAC2, MAC1, worker_testapp_validate_tx);
+	init_iface(ifobj_rx, worker_testapp_validate_rx);
+	init_iface(ifobj_tx, worker_testapp_validate_tx);
 
 	test_spec_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
-	tx_pkt_stream_default = pkt_stream_generate(ifobj_tx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
-	rx_pkt_stream_default = pkt_stream_generate(ifobj_rx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
 	if (!tx_pkt_stream_default || !rx_pkt_stream_default)
 		exit_with_error(ENOMEM);
 	test.tx_pkt_stream_default = tx_pkt_stream_default;

tools/testing/selftests/bpf/xskxceiver.h

@@ -8,6 +8,7 @@
 #include <limits.h>
 
 #include "xsk_xdp_progs.skel.h"
+#include "xsk_xdp_common.h"
 
 #ifndef SOL_XDP
 #define SOL_XDP 283
@@ -35,7 +36,6 @@
 #define TEST_SKIP 2
 #define MAX_INTERFACES 2
 #define MAX_INTERFACE_NAME_CHARS 16
-#define MAX_SOCKETS 2
 #define MAX_TEST_NAME_SIZE 48
 #define MAX_TEARDOWN_ITER 10
 #define PKT_HDR_SIZE (sizeof(struct ethhdr) + 2) /* Just to align the data in the packet */
@@ -59,6 +59,7 @@
 #define HUGEPAGE_SIZE (2 * 1024 * 1024)
 #define PKT_DUMP_NB_TO_PRINT 16
 #define RUN_ALL_TESTS UINT_MAX
+#define NUM_MAC_ADDRESSES 4
 
 #define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0)
 
@@ -87,8 +88,11 @@ struct xsk_socket_info {
 	struct xsk_ring_prod tx;
 	struct xsk_umem_info *umem;
 	struct xsk_socket *xsk;
+	struct pkt_stream *pkt_stream;
 	u32 outstanding_tx;
 	u32 rxqsize;
+	u8 dst_mac[ETH_ALEN];
+	u8 src_mac[ETH_ALEN];
 };
 
 struct pkt {
@@ -104,6 +108,8 @@ struct pkt_stream {
 	u32 current_pkt_nb;
 	struct pkt *pkts;
 	u32 max_pkt_len;
+	u32 nb_rx_pkts;
+	u32 nb_valid_entries;
 	bool verbatim;
 };
 
@@ -120,7 +126,6 @@ struct ifobject {
 	struct xsk_umem_info *umem;
 	thread_func_t func_ptr;
 	validation_func_t validation_func;
-	struct pkt_stream *pkt_stream;
 	struct xsk_xdp_progs *xdp_progs;
 	struct bpf_map *xskmap;
 	struct bpf_program *xdp_prog;
@@ -140,8 +145,6 @@ struct ifobject {
 	bool unaligned_supp;
 	bool multi_buff_supp;
 	bool multi_buff_zc_supp;
-	u8 dst_mac[ETH_ALEN];
-	u8 src_mac[ETH_ALEN];
 };
 
 struct test_spec {
@@ -168,4 +171,6 @@ pthread_mutex_t pacing_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 int pkts_in_flight;
 
+static const u8 g_mac[ETH_ALEN] = {0x55, 0x44, 0x33, 0x22, 0x11, 0x00};
+
 #endif				/* XSKXCEIVER_H_ */