linux-toradex.git/tools/testing/selftests/tc-testing/tc-tests, branch master

selftests/tc-testing: Add DualPI2 GSO backlog accounting test

2026-06-21T22:16:03+00:00

Add a regression test for DualPI2 GSO backlog accounting when it is
used as a child qdisc of QFQ.

The test sends one UDP GSO datagram through a QFQ class with DualPI2 as
the leaf qdisc. DualPI2 splits the skb into two segments. After the
traffic drains, both QFQ and DualPI2 must report zero backlog and zero
qlen.

On kernels with the broken accounting, QFQ can keep a stale non-zero
qlen after all real packets have been dequeued.

Signed-off-by: Xingquan Liu 
Acked-by: Jamal Hadi Salim 
Reviewed-by: Victor Nogueira 
Link: https://patch.msgid.link/20260619151447.223640-2-b1n@b1n.io
Signed-off-by: Jakub Kicinski

selftests/tc-testing: act_ct: add TDC test for skb cb preservation across defrag

2026-06-19T00:39:08+00:00

Add a tc-testing case that sends IPv4 fragments through act_ct on clsact
egress while a root prio qdisc is present on the transmit path.

The test verifies that packet processing and qdisc accounting continue
to work after conntrack defragmentation, covering tc_skb_cb preservation
across defragmentation.

Signed-off-by: Zihan Xi 
Signed-off-by: Ren Wei 
Link: https://patch.msgid.link/53493549fdbcb2de25788b7894c56baadbc5fede.1781358692.git.xizh2024@lzu.edu.cn
Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-06-16T21:59:58+00:00

Merge in late fixes in preparation for the net-next PR.

Conflicts:

net/tls/tls_sw.c
  406e8a651a7b ("net: skmsg: preserve sg.copy across SG transforms")
  79511603a65b ("tls: remove dead sockmap (psock) handling from the SW path")

drivers/net/ethernet/microsoft/mana/mana_en.c
  f8fd56977eeea ("net: mana: guard TX wq object destroy with INVALID_MANA_HANDLE check")
  d07efe5a6e641 ("net: mana: Use per-queue allocation for tx_qp to reduce allocation size")
https://lore.kernel.org/ajAPXu-C_PuTgV-a@sirena.org.uk

No adjacent changes.

Signed-off-by: Jakub Kicinski

selftests/tc-testing: Verify IFE can handle truncated inner Ethernet header

2026-06-14T00:34:39+00:00

Add a tdc test that exercises the act_ife decode path with a malformed
IFE packet whose encapsulated inner Ethernet header is truncated.

The injected frame has a valid outer Ethernet header (ethertype 0xED3E)
and a minimal IFE header (metalen 2, i.e. no metadata TLVs), but the
payload that should hold the original frame is a single byte instead of
a full Ethernet header. Once ife_decode() strips the outer header and
the IFE metadata, fewer than ETH_HLEN bytes are left, which previously
let eth_type_trans() read past the end of the linear data.

Signed-off-by: Victor Nogueira 
Link: https://patch.msgid.link/20260610183814.1648888-3-n05ec@lzu.edu.cn
Signed-off-by: Jakub Kicinski

selftests/tc-testing: Verify child qdisc will not mistakenly deactivate QFQ parent

2026-06-13T00:20:54+00:00

Create 3 test cases:
- Verify fq_codel won't mistakenly deactivate QFQ parent class during peek
- Verify codel won't mistakenly deactivate QFQ parent class during peek
- Verify dualpi2 won't mistakenly deactivate QFQ parent class during peek

Verify that these 3 qdiscs (fq_codel, codel, dualpi2) will not call
qdisc_tree_reduce_backlog with an incorrect qlen (0) during peek and
mistakenly deactivate a parent class.

Acked-by: Jamal Hadi Salim 
Signed-off-by: Victor Nogueira 
Link: https://patch.msgid.link/20260610192855.3121513-5-victor@mojatatu.com
Signed-off-by: Jakub Kicinski

selftests: tc: act_pedit: require matching IPv4 L4 protocol

2026-06-12T22:17:57+00:00

Add a tdc test that checks the act_pedit extended L4 header mode does not
edit a packet whose IPv4 protocol does not match the selected transport
header.

The test installs an ingress pedit rule that sets the UDP destination
port, then injects a TCP packet with dport 2222. The UDP and TCP
destination ports sit at the same L4 offset, so a buggy kernel rewrites
the TCP dport. A second flower filter matches TCP dport 2222 and drops
the packet through an indexed gact action; the test then verifies via
JSON that this action saw exactly one packet, i.e. the dport was left
untouched and still matched 2222.

Signed-off-by: Victor Nogueira 
Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-05-28T21:02:21+00:00

Cross-merge networking fixes after downstream PR (net-7.1-rc6).

Conflicts:

drivers/net/phy/air_en8811h.c
  d895767c33781 ("net: phy: air_en8811h: add AN8811HB MCU assert/deassert support")
  dddfadd75197e ("net: phy: Add Airoha phy library for shared code")
  5226bb6634cdf ("net: phy: air_phy_lib: Factorize BuckPBus register accessors")
  e08f0ea6daf2e ("net: phy: Rename Airoha common BuckPBus register accessors")

net/sched/sch_netem.c
  a2f6ed7b4873 ("net/sched: netem: add per-impairment extended statistics")
  9552b11e3eda ("net/sched: fix packet loop on netem when duplicate is on")

Adjacent changes:

drivers/dpll/zl3073x/core.c
  c1224569cef0 ("dpll: zl3073x: make frequency monitor a per-device attribute")
  54e65df8cf18 ("dpll: zl3073x: report FFO as DPLL vs input reference offset")

net/iucv/af_iucv.c
  347fdd4df85f ("af_iucv: convert to getsockopt_iter")
  3589d20a666c ("net/iucv: fix locking in .getsockopt")

Signed-off-by: Jakub Kicinski

selftests/tc-testing: Add netem test case exercising loops

2026-05-28T10:26:37+00:00

Add a netem nested duplicate test case to validate that it won't
cause an infinite loop

Acked-by: Jamal Hadi Salim 
Acked-by: Stephen Hemminger 
Signed-off-by: Victor Nogueira 
Link: https://patch.msgid.link/20260525122556.973584-10-jhs@mojatatu.com
Signed-off-by: Paolo Abeni

selftests/tc-testing: Add mirred test cases exercising loops

2026-05-28T10:26:36+00:00

Add mirred loop test cases to validate that those will be caught and other
test cases that were previously misinterpreted as loops by mirred.

This commit adds 12 test cases:

- Redirect multiport: dummy egress -> dev1 ingress -> dummy egress (Loop)
- Redirect singleport: dev1 ingress -> dev1 egress -> dev1 ingress (Loop)
- Redirect multiport: dev1 ingress -> dummy ingress -> dev1 egress (No Loop)
- Redirect multiport: dev1 ingress -> dummy ingress -> dev1 ingress (Loop)
- Redirect multiport: dev1 ingress -> dummy egress -> dev1 ingress (Loop)
- Redirect multiport: dummy egress -> dev1 ingress -> dummy egress, different prios (Loop)
- Redirect multiport: dev1 ingress -> dummy ingress -> dummy egress -> dev1 egress (No Loop)
- Redirect multiport: dev1 ingress -> dummy egress -> dev1 egress (No Loop)
- Redirect multiport: dev1 ingress -> dummy egress -> dummy ingress (No Loop)
- Redirect singleport: dev1 ingress -> dev1 ingress (Loop)
- Redirect singleport: dummy egress -> dummy ingress (No Loop)
- Redirect multiport: dev1 ingress -> dummy ingress -> dummy egress (No Loop)

Acked-by: Jamal Hadi Salim 
Acked-by: Stephen Hemminger 
Signed-off-by: Victor Nogueira 
Link: https://patch.msgid.link/20260525122556.973584-9-jhs@mojatatu.com
Signed-off-by: Paolo Abeni

Revert "selftests/tc-testing: Add tests for restrictions on netem duplication"

2026-05-28T10:26:36+00:00

This reverts commit ecdec65ec78d67d3ebd17edc88b88312054abe0d.

The tests added were related to check_netem_in_tree() which was
just reverted in the previous patch.

Reviewed-by: Stephen Hemminger 
Signed-off-by: Jamal Hadi Salim 
Link: https://patch.msgid.link/20260525122556.973584-4-jhs@mojatatu.com
Signed-off-by: Paolo Abeni