selftests: add ncdevmem, netcat for devmem TCP

ncdevmem is a devmem TCP netcat. It works similarly to netcat, but it sends and receives data using the devmem TCP APIs. It uses udmabuf as the dmabuf provider. It is compatible with a regular netcat running on a peer, or a ncdevmem running on a peer. In addition to normal netcat support, ncdevmem has a validation mode, where it sends a specific pattern and validates this pattern on the receiver side to ensure data integrity. Suggested-by: Stanislav Fomichev <[email protected]> Signed-off-by: Mina Almasry <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
kolli · Sep 12, 2024 · 85585b4 · 85585b4
1 parent 09d1db2
commit 85585b4
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diff --git a/tools/net/ynl/lib/.gitignore b/tools/net/ynl/lib/.gitignore
@@ -1 +1,2 @@
 __pycache__/
+*.d
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
@@ -17,6 +17,7 @@ ipv6_flowlabel
 ipv6_flowlabel_mgr
 log.txt
 msg_zerocopy
+ncdevmem
 nettest
 psock_fanout
 psock_snd

diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
@@ -97,6 +97,11 @@ TEST_PROGS += fq_band_pktlimit.sh
 TEST_PROGS += vlan_hw_filter.sh
 TEST_PROGS += bpf_offload.py
 
+# YNL files, must be before "include ..lib.mk"
+EXTRA_CLEAN += $(OUTPUT)/libynl.a
+YNL_GEN_FILES := ncdevmem
+TEST_GEN_FILES += $(YNL_GEN_FILES)
+
 TEST_FILES := settings
 TEST_FILES += in_netns.sh lib.sh net_helper.sh setup_loopback.sh setup_veth.sh
 
@@ -106,6 +111,10 @@ TEST_INCLUDES := forwarding/lib.sh
 
 include ../lib.mk
 
+# YNL build
+YNL_GENS := netdev
+include ynl.mk
+
 $(OUTPUT)/epoll_busy_poll: LDLIBS += -lcap
 $(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma
 $(OUTPUT)/tcp_mmap: LDLIBS += -lpthread -lcrypto