diff mbox series

[bpf-next,15/20] selftests: xsk: allow for invalid packets

Message ID 20210901104732.10956-16-magnus.karlsson@gmail.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series selftests: xsk: facilitate adding tests | expand

Checks

Context Check Description
bpf/vmtest-bpf-next fail VM_Test
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count fail Series longer than 15 patches
netdev/tree_selection success Clearly marked for bpf-next
netdev/subject_prefix success Link
netdev/cc_maintainers warning 9 maintainers not CCed: linux-kselftest@vger.kernel.org kpsingh@kernel.org hawk@kernel.org davem@davemloft.net kuba@kernel.org songliubraving@fb.com kafai@fb.com john.fastabend@gmail.com shuah@kernel.org
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 44 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
bpf/vmtest-bpf-next-PR fail PR summary

Commit Message

Magnus Karlsson Sept. 1, 2021, 10:47 a.m. UTC 
From: Magnus Karlsson <magnus.karlsson@intel.com>

Allow for invalid packets to be sent. These are verified by the Rx
thread not to be received. Or put in another way, if they are
received, the test will fail. This feature will be used to eliminate
an if statement for a stats test and will also be used by other tests
in later patches. The previous code could only deal with valid
packets.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 16 ++++++++++------
 tools/testing/selftests/bpf/xdpxceiver.h |  1 +
 2 files changed, 11 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index 0fb5cae974de..09d2854c10e6 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -473,6 +473,11 @@  static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb
 		pkt_stream->pkts[i].addr = (i % umem->num_frames) * umem->frame_size;
 		pkt_stream->pkts[i].len = pkt_len;
 		pkt_stream->pkts[i].payload = i;
+
+		if (pkt_len > umem->frame_size)
+			pkt_stream->pkts[i].valid = false;
+		else
+			pkt_stream->pkts[i].valid = true;
 	}
 
 	return pkt_stream;
@@ -658,7 +663,7 @@  static void receive_pkts(struct pkt_stream *pkt_stream, struct xsk_socket_info *
 static u32 __send_pkts(struct ifobject *ifobject, u32 pkt_nb)
 {
 	struct xsk_socket_info *xsk = ifobject->xsk;
-	u32 i, idx;
+	u32 i, idx, valid_pkts = 0;
 
 	while (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) < BATCH_SIZE)
 		complete_pkts(xsk, BATCH_SIZE);
@@ -673,14 +678,13 @@  static u32 __send_pkts(struct ifobject *ifobject, u32 pkt_nb)
 		tx_desc->addr = pkt->addr;
 		tx_desc->len = pkt->len;
 		pkt_nb++;
+		if (pkt->valid)
+			valid_pkts++;
 	}
 
 	xsk_ring_prod__submit(&xsk->tx, i);
-	if (stat_test_type != STAT_TEST_TX_INVALID)
-		xsk->outstanding_tx += i;
-	else if (xsk_ring_prod__needs_wakeup(&xsk->tx))
-		kick_tx(xsk);
-	complete_pkts(xsk, i);
+	xsk->outstanding_tx += valid_pkts;
+	complete_pkts(xsk, BATCH_SIZE);
 
 	return i;
 }
diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h
index 1e9a563380c8..c5baa7c5f560 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xdpxceiver.h
@@ -96,6 +96,7 @@  struct pkt {
 	u64 addr;
 	u32 len;
 	u32 payload;
+	bool valid;
 };
 
 struct pkt_stream {