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

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

Conflicts:

include/net/sch_generic.h
  a6bd339dbb351 ("net_sched: fix skb memory leak in deferred qdisc drops")
  ff2998f29f390 ("net: sched: introduce qdisc-specific drop reason tracing")
https://lore.kernel.org/adz0iX85FHMz0HdO@sirena.org.uk

drivers/net/ethernet/airoha/airoha_eth.c
  1acdfbdb516b ("net: airoha: Fix VIP configuration for AN7583 SoC")
  bf3471e6e6c0 ("net: airoha: Make flow control source port mapping dependent on nbq parameter")

Adjacent changes:

drivers/net/ethernet/airoha/airoha_ppe.c
  f44218cd5e6a ("net: airoha: Reset PPE cpu port configuration in airoha_ppe_hw_init()")
  7da62262ec96 ("inet: add ip_local_port_step_width sysctl to improve port usage distribution")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 343 insertions, 0 deletions

diff --git a/tools/testing/selftests/drivers/net/macsec.py b/tools/testing/selftests/drivers/net/macsec.py
new file mode 100755
index 000000000000..9a83d9542e04
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/macsec.py
@@ -0,0 +1,343 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""MACsec tests."""
+
+import os
+
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_raises
+from lib.py import ksft_variants, KsftNamedVariant
+from lib.py import CmdExitFailure, KsftSkipEx
+from lib.py import NetDrvEpEnv
+from lib.py import cmd, ip, defer, ethtool
+
+MACSEC_KEY = "12345678901234567890123456789012"
+MACSEC_VLAN_VID = 10
+
+# Unique prefix per run to avoid collisions in the shared netns.
+# Keep it short: IFNAMSIZ is 16 (incl. NUL), and VLAN names append ".<vid>".
+MACSEC_PFX = f"ms{os.getpid()}_"
+
+
+def _macsec_name(idx=0):
+    return f"{MACSEC_PFX}{idx}"
+
+
+def _get_macsec_offload(dev):
+    """Returns macsec offload mode string from ip -d link show."""
+    info = ip(f"-d link show dev {dev}", json=True)[0]
+    return info.get("linkinfo", {}).get("info_data", {}).get("offload")
+
+
+def _get_features(dev):
+    """Returns ethtool features dict for a device."""
+    return ethtool(f"-k {dev}", json=True)[0]
+
+
+def _require_ip_macsec(cfg):
+    """SKIP if iproute2 on local or remote lacks 'ip macsec' support."""
+    for host in [None, cfg.remote]:
+        out = cmd("ip macsec help", fail=False, host=host)
+        if "Usage" not in out.stdout + out.stderr:
+            where = "remote" if host else "local"
+            raise KsftSkipEx(f"iproute2 too old on {where},"
+                             " missing macsec support")
+
+
+def _require_ip_macsec_offload():
+    """SKIP if local iproute2 doesn't understand 'ip macsec offload'."""
+    out = cmd("ip macsec help", fail=False)
+    if "offload" not in out.stdout + out.stderr:
+        raise KsftSkipEx("iproute2 too old, missing macsec offload")
+
+
+def _require_macsec_offload(cfg):
+    """SKIP if local device doesn't support macsec-hw-offload."""
+    _require_ip_macsec_offload()
+    try:
+        feat = ethtool(f"-k {cfg.ifname}", json=True)[0]
+    except (CmdExitFailure, IndexError) as e:
+        raise KsftSkipEx(
+            f"can't query features: {e}") from e
+    if not feat.get("macsec-hw-offload", {}).get("active"):
+        raise KsftSkipEx("macsec-hw-offload not supported")
+
+
+def _get_mac(ifname, host=None):
+    """Gets MAC address of an interface."""
+    dev = ip(f"link show dev {ifname}", json=True, host=host)
+    return dev[0]["address"]
+
+
+def _setup_macsec_sa(cfg, name):
+    """Adds matching TX/RX SAs on both ends."""
+    local_mac = _get_mac(name)
+    remote_mac = _get_mac(name, host=cfg.remote)
+
+    ip(f"macsec add {name} tx sa 0 pn 1 on key 01 {MACSEC_KEY}")
+    ip(f"macsec add {name} rx port 1 address {remote_mac}")
+    ip(f"macsec add {name} rx port 1 address {remote_mac} "
+       f"sa 0 pn 1 on key 02 {MACSEC_KEY}")
+
+    ip(f"macsec add {name} tx sa 0 pn 1 on key 02 {MACSEC_KEY}",
+       host=cfg.remote)
+    ip(f"macsec add {name} rx port 1 address {local_mac}", host=cfg.remote)
+    ip(f"macsec add {name} rx port 1 address {local_mac} "
+       f"sa 0 pn 1 on key 01 {MACSEC_KEY}", host=cfg.remote)
+
+
+def _setup_macsec_devs(cfg, name, offload):
+    """Creates macsec devices on both ends.
+
+    Only the local device gets HW offload; the remote always uses software
+    MACsec since it may not support offload at all.
+    """
+    offload_arg = "mac" if offload else "off"
+
+    ip(f"link add link {cfg.ifname} {name} "
+       f"type macsec encrypt on offload {offload_arg}")
+    defer(ip, f"link del {name}")
+    ip(f"link add link {cfg.remote_ifname} {name} "
+       f"type macsec encrypt on", host=cfg.remote)
+    defer(ip, f"link del {name}", host=cfg.remote)
+
+
+def _set_offload(name, offload):
+    """Sets offload on the local macsec device only."""
+    offload_arg = "mac" if offload else "off"
+
+    ip(f"link set {name} type macsec encrypt on offload {offload_arg}")
+
+
+def _setup_vlans(cfg, name, vid):
+    """Adds VLANs on top of existing macsec devs."""
+    vlan_name = f"{name}.{vid}"
+
+    ip(f"link add link {name} {vlan_name} type vlan id {vid}")
+    defer(ip, f"link del {vlan_name}")
+    ip(f"link add link {name} {vlan_name} type vlan id {vid}", host=cfg.remote)
+    defer(ip, f"link del {vlan_name}", host=cfg.remote)
+
+
+def _setup_vlan_ips(cfg, name, vid):
+    """Adds VLANs and IPs and brings up the macsec + VLAN devices."""
+    local_ip = "198.51.100.1"
+    remote_ip = "198.51.100.2"
+    vlan_name = f"{name}.{vid}"
+
+    ip(f"addr add {local_ip}/24 dev {vlan_name}")
+    ip(f"addr add {remote_ip}/24 dev {vlan_name}", host=cfg.remote)
+    ip(f"link set {name} up")
+    ip(f"link set {name} up", host=cfg.remote)
+    ip(f"link set {vlan_name} up")
+    ip(f"link set {vlan_name} up", host=cfg.remote)
+
+    return vlan_name, remote_ip
+
+
+def test_offload_api(cfg) -> None:
+    """MACsec offload API: create SecY, add SA/rx, toggle offload."""
+
+    _require_macsec_offload(cfg)
+    ms0 = _macsec_name(0)
+    ms1 = _macsec_name(1)
+    ms2 = _macsec_name(2)
+
+    # Create 3 SecY with offload
+    ip(f"link add link {cfg.ifname} {ms0} type macsec "
+       f"port 4 encrypt on offload mac")
+    defer(ip, f"link del {ms0}")
+
+    ip(f"link add link {cfg.ifname} {ms1} type macsec "
+       f"address aa:bb:cc:dd:ee:ff port 5 encrypt on offload mac")
+    defer(ip, f"link del {ms1}")
+
+    ip(f"link add link {cfg.ifname} {ms2} type macsec "
+       f"sci abbacdde01020304 encrypt on offload mac")
+    defer(ip, f"link del {ms2}")
+
+    # Add TX SA
+    ip(f"macsec add {ms0} tx sa 0 pn 1024 on "
+       "key 01 12345678901234567890123456789012")
+
+    # Add RX SC + SA
+    ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef")
+    ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef "
+       "sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef")
+
+    # Can't disable offload when SAs are configured
+    with ksft_raises(CmdExitFailure):
+        ip(f"link set {ms0} type macsec offload off")
+    with ksft_raises(CmdExitFailure):
+        ip(f"macsec offload {ms0} off")
+
+    # Toggle offload via rtnetlink on SA-free device
+    ip(f"link set {ms2} type macsec offload off")
+    ip(f"link set {ms2} type macsec encrypt on offload mac")
+
+    # Toggle offload via genetlink
+    ip(f"macsec offload {ms2} off")
+    ip(f"macsec offload {ms2} mac")
+
+
+def test_max_secy(cfg) -> None:
+    """nsim-only test for max number of SecYs."""
+
+    cfg.require_nsim()
+    _require_ip_macsec_offload()
+    ms0 = _macsec_name(0)
+    ms1 = _macsec_name(1)
+    ms2 = _macsec_name(2)
+    ms3 = _macsec_name(3)
+
+    ip(f"link add link {cfg.ifname} {ms0} type macsec "
+       f"port 4 encrypt on offload mac")
+    defer(ip, f"link del {ms0}")
+
+    ip(f"link add link {cfg.ifname} {ms1} type macsec "
+       f"address aa:bb:cc:dd:ee:ff port 5 encrypt on offload mac")
+    defer(ip, f"link del {ms1}")
+
+    ip(f"link add link {cfg.ifname} {ms2} type macsec "
+       f"sci abbacdde01020304 encrypt on offload mac")
+    defer(ip, f"link del {ms2}")
+    with ksft_raises(CmdExitFailure):
+        ip(f"link add link {cfg.ifname} {ms3} "
+           f"type macsec port 8 encrypt on offload mac")
+
+
+def test_max_sc(cfg) -> None:
+    """nsim-only test for max number of SCs."""
+
+    cfg.require_nsim()
+    _require_ip_macsec_offload()
+    ms0 = _macsec_name(0)
+
+    ip(f"link add link {cfg.ifname} {ms0} type macsec "
+       f"port 4 encrypt on offload mac")
+    defer(ip, f"link del {ms0}")
+    ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef")
+    with ksft_raises(CmdExitFailure):
+        ip(f"macsec add {ms0} rx port 1235 address 1c:ed:de:ad:be:ef")
+
+
+def test_offload_state(cfg) -> None:
+    """Offload state reflects configuration changes."""
+
+    _require_macsec_offload(cfg)
+    ms0 = _macsec_name(0)
+
+    # Create with offload on
+    ip(f"link add link {cfg.ifname} {ms0} type macsec "
+       f"encrypt on offload mac")
+    cleanup = defer(ip, f"link del {ms0}")
+
+    ksft_eq(_get_macsec_offload(ms0), "mac",
+            "created with offload: should be mac")
+    feats_on_1 = _get_features(ms0)
+
+    ip(f"link set {ms0} type macsec offload off")
+    ksft_eq(_get_macsec_offload(ms0), "off",
+            "offload disabled: should be off")
+    feats_off_1 = _get_features(ms0)
+
+    ip(f"link set {ms0} type macsec encrypt on offload mac")
+    ksft_eq(_get_macsec_offload(ms0), "mac",
+            "offload re-enabled: should be mac")
+    ksft_eq(_get_features(ms0), feats_on_1,
+            "features should match first offload-on snapshot")
+
+    # Delete and recreate without offload
+    cleanup.exec()
+    ip(f"link add link {cfg.ifname} {ms0} type macsec")
+    defer(ip, f"link del {ms0}")
+    ksft_eq(_get_macsec_offload(ms0), "off",
+            "created without offload: should be off")
+    ksft_eq(_get_features(ms0), feats_off_1,
+            "features should match first offload-off snapshot")
+
+    ip(f"link set {ms0} type macsec encrypt on offload mac")
+    ksft_eq(_get_macsec_offload(ms0), "mac",
+            "offload enabled after create: should be mac")
+    ksft_eq(_get_features(ms0), feats_on_1,
+            "features should match first offload-on snapshot")
+
+
+def _check_nsim_vid(cfg, vid, expected) -> None:
+    """Checks if a VLAN is present. Only works on netdevsim."""
+
+    nsim = cfg.get_local_nsim_dev()
+    if not nsim:
+        return
+
+    vlan_path = os.path.join(nsim.nsims[0].dfs_dir, "vlan")
+    with open(vlan_path, encoding="utf-8") as f:
+        vids = f.read()
+    found = f"ctag {vid}\n" in vids
+    ksft_eq(found, expected,
+            f"VLAN {vid} {'expected' if expected else 'not expected'}"
+            f" in debugfs")
+
+
+@ksft_variants([
+    KsftNamedVariant("offloaded", True),
+    KsftNamedVariant("software", False),
+])
+def test_vlan(cfg, offload) -> None:
+    """Ping through VLAN-over-macsec."""
+
+    _require_ip_macsec(cfg)
+    if offload:
+        _require_macsec_offload(cfg)
+    else:
+        _require_ip_macsec_offload()
+    name = _macsec_name()
+    _setup_macsec_devs(cfg, name, offload=offload)
+    _setup_macsec_sa(cfg, name)
+    _setup_vlans(cfg, name, MACSEC_VLAN_VID)
+    vlan_name, remote_ip = _setup_vlan_ips(cfg, name, MACSEC_VLAN_VID)
+    _check_nsim_vid(cfg, MACSEC_VLAN_VID, offload)
+    # nsim doesn't handle the data path for offloaded macsec, so skip
+    # the ping when offloaded on nsim.
+    if not offload or not cfg.get_local_nsim_dev():
+        cmd(f"ping -I {vlan_name} -c 1 -W 5 {remote_ip}")
+
+
+@ksft_variants([
+    KsftNamedVariant("on_to_off", True),
+    KsftNamedVariant("off_to_on", False),
+])
+def test_vlan_toggle(cfg, offload) -> None:
+    """Toggle offload: VLAN filters propagate/remove correctly."""
+
+    _require_ip_macsec(cfg)
+    _require_macsec_offload(cfg)
+    name = _macsec_name()
+    _setup_macsec_devs(cfg, name, offload=offload)
+    _setup_vlans(cfg, name, MACSEC_VLAN_VID)
+    _check_nsim_vid(cfg, MACSEC_VLAN_VID, offload)
+    _set_offload(name, offload=not offload)
+    _check_nsim_vid(cfg, MACSEC_VLAN_VID, not offload)
+    vlan_name, remote_ip = _setup_vlan_ips(cfg, name, MACSEC_VLAN_VID)
+    _setup_macsec_sa(cfg, name)
+    # nsim doesn't handle the data path for offloaded macsec, so skip
+    # the ping when the final state is offloaded on nsim.
+    if offload or not cfg.get_local_nsim_dev():
+        cmd(f"ping -I {vlan_name} -c 1 -W 5 {remote_ip}")
+
+
+def main() -> None:
+    """Main program."""
+    with NetDrvEpEnv(__file__) as cfg:
+        ksft_run([test_offload_api,
+                  test_max_secy,
+                  test_max_sc,
+                  test_offload_state,
+                  test_vlan,
+                  test_vlan_toggle,
+                  ], args=(cfg,))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()