Merge tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Wrap datapath globals into net_aligned_data, to avoid false sharing

   - Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container)

   - Add SO_INQ and SCM_INQ support to AF_UNIX

   - Add SIOCINQ support to AF_VSOCK

   - Add TCP_MAXSEG sockopt to MPTCP

   - Add IPv6 force_forwarding sysctl to enable forwarding per interface

   - Make TCP validation of whether packet fully fits in the receive
     window and the rcv_buf more strict. With increased use of HW
     aggregation a single "packet" can be multiple 100s of kB

   - Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
     improves latency up to 33% for sockmap users

   - Convert TCP send queue handling from tasklet to BH workque

   - Improve BPF iteration over TCP sockets to see each socket exactly
     once

   - Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code

   - Support enabling kernel threads for NAPI processing on per-NAPI
     instance basis rather than a whole device. Fully stop the kernel
     NAPI thread when threaded NAPI gets disabled. Previously thread
     would stick around until ifdown due to tricky synchronization

   - Allow multicast routing to take effect on locally-generated packets

   - Add output interface argument for End.X in segment routing

   - MCTP: add support for gateway routing, improve bind() handling

   - Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink

   - Add a new neighbor flag ("extern_valid"), which cedes refresh
     responsibilities to userspace. This is needed for EVPN multi-homing
     where a neighbor entry for a multi-homed host needs to be synced
     across all the VTEPs among which the host is multi-homed

   - Support NUD_PERMANENT for proxy neighbor entries

   - Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM

   - Add sequence numbers to netconsole messages. Unregister
     netconsole's console when all net targets are removed. Code
     refactoring. Add a number of selftests

   - Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
     should be used for an inbound SA lookup

   - Support inspecting ref_tracker state via DebugFS

   - Don't force bonding advertisement frames tx to ~333 ms boundaries.
     Add broadcast_neighbor option to send ARP/ND on all bonded links

   - Allow providing upcall pid for the 'execute' command in openvswitch

   - Remove DCCP support from Netfilter's conntrack

   - Disallow multiple packet duplications in the queuing layer

   - Prevent use of deprecated iptables code on PREEMPT_RT

  Driver API:

   - Support RSS and hashing configuration over ethtool Netlink

   - Add dedicated ethtool callbacks for getting and setting hashing
     fields

   - Add support for power budget evaluation strategy in PSE /
     Power-over-Ethernet. Generate Netlink events for overcurrent etc

   - Support DPLL phase offset monitoring across all device inputs.
     Support providing clock reference and SYNC over separate DPLL
     inputs

   - Support traffic classes in devlink rate API for bandwidth
     management

   - Remove rtnl_lock dependency from UDP tunnel port configuration

  Device drivers:

   - Add a new Broadcom driver for 800G Ethernet (bnge)

   - Add a standalone driver for Microchip ZL3073x DPLL

   - Remove IBM's NETIUCV device driver

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - support zero-copy Tx of DMABUF memory
         - take page size into account for page pool recycling rings
      - Intel (100G, ice, idpf):
         - idpf: XDP and AF_XDP support preparations
         - idpf: add flow steering
         - add link_down_events statistic
         - clean up the TSPLL code
         - preparations for live VM migration
      - nVidia/Mellanox:
         - support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
         - optimize context memory usage for matchers
         - expose serial numbers in devlink info
         - support PCIe congestion metrics
      - Meta (fbnic):
         - add 25G, 50G, and 100G link modes to phylink
         - support dumping FW logs
      - Marvell/Cavium:
         - support for CN20K generation of the Octeon chips
      - Amazon:
         - add HW clock (without timestamping, just hypervisor time access)

   - Ethernet virtual:
      - VirtIO net:
         - support segmentation of UDP-tunnel-encapsulated packets
      - Google (gve):
         - support packet timestamping and clock synchronization
      - Microsoft vNIC:
         - add handler for device-originated servicing events
         - allow dynamic MSI-X vector allocation
         - support Tx bandwidth clamping

   - Ethernet NICs consumer, and embedded:
      - AMD:
         - amd-xgbe: hardware timestamping and PTP clock support
      - Broadcom integrated MACs (bcmgenet, bcmasp):
         - use napi_complete_done() return value to support NAPI polling
         - add support for re-starting auto-negotiation
      - Broadcom switches (b53):
         - support BCM5325 switches
         - add bcm63xx EPHY power control
      - Synopsys (stmmac):
         - lots of code refactoring and cleanups
      - TI:
         - icssg-prueth: read firmware-names from device tree
         - icssg: PRP offload support
      - Microchip:
         - lan78xx: convert to PHYLINK for improved PHY and MAC management
         - ksz: add KSZ8463 switch support
      - Intel:
         - support similar queue priority scheme in multi-queue and
           time-sensitive networking (taprio)
         - support packet pre-emption in both
      - RealTek (r8169):
         - enable EEE at 5Gbps on RTL8126
      - Airoha:
         - add PPPoE offload support
         - MDIO bus controller for Airoha AN7583

   - Ethernet PHYs:
      - support for the IPQ5018 internal GE PHY
      - micrel KSZ9477 switch-integrated PHYs:
         - add MDI/MDI-X control support
         - add RX error counters
         - add cable test support
         - add Signal Quality Indicator (SQI) reporting
      - dp83tg720: improve reset handling and reduce link recovery time
      - support bcm54811 (and its MII-Lite interface type)
      - air_en8811h: support resume/suspend
      - support PHY counters for QCA807x and QCA808x
      - support WoL for QCA807x

   - CAN drivers:
      - rcar_canfd: support for Transceiver Delay Compensation
      - kvaser: report FW versions via devlink dev info

   - WiFi:
      - extended regulatory info support (6 GHz)
      - add statistics and beacon monitor for Multi-Link Operation (MLO)
      - support S1G aggregation, improve S1G support
      - add Radio Measurement action fields
      - support per-radio RTS threshold
      - some work around how FIPS affects wifi, which was wrong (RC4 is
        used by TKIP, not only WEP)
      - improvements for unsolicited probe response handling

   - WiFi drivers:
      - RealTek (rtw88):
         - IBSS mode for SDIO devices
      - RealTek (rtw89):
         - BT coexistence for MLO/WiFi7
         - concurrent station + P2P support
         - support for USB devices RTL8851BU/RTL8852BU
      - Intel (iwlwifi):
         - use embedded PNVM in (to be released) FW images to fix
           compatibility issues
         - many cleanups (unused FW APIs, PCIe code, WoWLAN)
         - some FIPS interoperability
      - MediaTek (mt76):
         - firmware recovery improvements
         - more MLO work
      - Qualcomm/Atheros (ath12k):
         - fix scan on multi-radio devices
         - more EHT/Wi-Fi 7 features
         - encapsulation/decapsulation offload
      - Broadcom (brcm80211):
         - support SDIO 43751 device

   - Bluetooth:
      - hci_event: add support for handling LE BIG Sync Lost event
      - ISO: add socket option to report packet seqnum via CMSG
      - ISO: support SCM_TIMESTAMPING for ISO TS

   - Bluetooth drivers:
      - intel_pcie: support Function Level Reset
      - nxpuart: add support for 4M baudrate
      - nxpuart: implement powerup sequence, reset, FW dump, and FW loading"

* tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1742 commits)
  dpll: zl3073x: Fix build failure
  selftests: bpf: fix legacy netfilter options
  ipv6: annotate data-races around rt->fib6_nsiblings
  ipv6: fix possible infinite loop in fib6_info_uses_dev()
  ipv6: prevent infinite loop in rt6_nlmsg_size()
  ipv6: add a retry logic in net6_rt_notify()
  vrf: Drop existing dst reference in vrf_ip6_input_dst
  net/sched: taprio: align entry index attr validation with mqprio
  net: fsl_pq_mdio: use dev_err_probe
  selftests: rtnetlink.sh: remove esp4_offload after test
  vsock: remove unnecessary null check in vsock_getname()
  igb: xsk: solve negative overflow of nb_pkts in zerocopy mode
  stmmac: xsk: fix negative overflow of budget in zerocopy mode
  dt-bindings: ieee802154: Convert at86rf230.txt yaml format
  net: dsa: microchip: Disable PTP function of KSZ8463
  net: dsa: microchip: Setup fiber ports for KSZ8463
  net: dsa: microchip: Write switch MAC address differently for KSZ8463
  net: dsa: microchip: Use different registers for KSZ8463
  net: dsa: microchip: Add KSZ8463 switch support to KSZ DSA driver
  dt-bindings: net: dsa: microchip: Add KSZ8463 switch support
  ...

1 files changed, 30 insertions, 15 deletions

diff --git a/tools/testing/selftests/drivers/net/stats.py b/tools/testing/selftests/drivers/net/stats.py
index efcc1e10575b..c2bb5d3f1ca1 100755
--- a/tools/testing/selftests/drivers/net/stats.py
+++ b/tools/testing/selftests/drivers/net/stats.py
@@ -1,12 +1,16 @@
 #!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0
 
+"""
+Tests related to standard netdevice statistics.
+"""
+
 import errno
 import subprocess
 import time
 from lib.py import ksft_run, ksft_exit, ksft_pr
 from lib.py import ksft_ge, ksft_eq, ksft_is, ksft_in, ksft_lt, ksft_true, ksft_raises
-from lib.py import KsftSkipEx, KsftXfailEx
+from lib.py import KsftSkipEx, KsftFailEx
 from lib.py import ksft_disruptive
 from lib.py import EthtoolFamily, NetdevFamily, RtnlFamily, NlError
 from lib.py import NetDrvEnv
@@ -18,13 +22,16 @@ rtnl = RtnlFamily()
 
 
 def check_pause(cfg) -> None:
-    global ethnl
+    """
+    Check that drivers which support Pause config also report standard
+    pause stats.
+    """
 
     try:
         ethnl.pause_get({"header": {"dev-index": cfg.ifindex}})
     except NlError as e:
         if e.error == errno.EOPNOTSUPP:
-            raise KsftXfailEx("pause not supported by the device")
+            raise KsftSkipEx("pause not supported by the device") from e
         raise
 
     data = ethnl.pause_get({"header": {"dev-index": cfg.ifindex,
@@ -33,13 +40,16 @@ def check_pause(cfg) -> None:
 
 
 def check_fec(cfg) -> None:
-    global ethnl
+    """
+    Check that drivers which support FEC config also report standard
+    FEC stats.
+    """
 
     try:
         ethnl.fec_get({"header": {"dev-index": cfg.ifindex}})
     except NlError as e:
         if e.error == errno.EOPNOTSUPP:
-            raise KsftXfailEx("FEC not supported by the device")
+            raise KsftSkipEx("FEC not supported by the device") from e
         raise
 
     data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
@@ -48,15 +58,17 @@ def check_fec(cfg) -> None:
 
 
 def pkt_byte_sum(cfg) -> None:
-    global netfam, rtnl
+    """
+    Check that qstat and interface stats match in value.
+    """
 
     def get_qstat(test):
-        global netfam
         stats = netfam.qstats_get({}, dump=True)
         if stats:
             for qs in stats:
                 if qs["ifindex"]== test.ifindex:
                     return qs
+        return None
 
     qstat = get_qstat(cfg)
     if qstat is None:
@@ -77,15 +89,14 @@ def pkt_byte_sum(cfg) -> None:
     for _ in range(10):
         rtstat = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
         if stat_cmp(rtstat, qstat) < 0:
-            raise Exception("RTNL stats are lower, fetched later")
+            raise KsftFailEx("RTNL stats are lower, fetched later")
         qstat = get_qstat(cfg)
         if stat_cmp(rtstat, qstat) > 0:
-            raise Exception("Qstats are lower, fetched later")
+            raise KsftFailEx("Qstats are lower, fetched later")
 
 
 def qstat_by_ifindex(cfg) -> None:
-    global netfam
-    global rtnl
+    """ Qstats Netlink API tests - querying by ifindex. """
 
     # Construct a map ifindex -> [dump, by-index, dump]
     ifindexes = {}
@@ -93,7 +104,7 @@ def qstat_by_ifindex(cfg) -> None:
     for entry in stats:
         ifindexes[entry['ifindex']] = [entry, None, None]
 
-    for ifindex in ifindexes.keys():
+    for ifindex in ifindexes:
         entry = netfam.qstats_get({"ifindex": ifindex}, dump=True)
         ksft_eq(len(entry), 1)
         ifindexes[entry[0]['ifindex']][1] = entry[0]
@@ -145,7 +156,7 @@ def qstat_by_ifindex(cfg) -> None:
 
     # Try to get stats for lowest unused ifindex but not 0
     devs = rtnl.getlink({}, dump=True)
-    all_ifindexes = set([dev["ifi-index"] for dev in devs])
+    all_ifindexes = set(dev["ifi-index"] for dev in devs)
     lowest = 2
     while lowest in all_ifindexes:
         lowest += 1
@@ -158,18 +169,20 @@ def qstat_by_ifindex(cfg) -> None:
 
 @ksft_disruptive
 def check_down(cfg) -> None:
+    """ Test statistics (interface and qstat) are not impacted by ifdown """
+
     try:
         qstat = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
     except NlError as e:
         if e.error == errno.EOPNOTSUPP:
-            raise KsftSkipEx("qstats not supported by the device")
+            raise KsftSkipEx("qstats not supported by the device") from e
         raise
 
     ip(f"link set dev {cfg.dev['ifname']} down")
     defer(ip, f"link set dev {cfg.dev['ifname']} up")
 
     qstat2 = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
-    for k, v in qstat.items():
+    for k in qstat:
         ksft_ge(qstat2[k], qstat[k], comment=f"{k} went backwards on device down")
 
     # exercise per-queue API to make sure that "device down" state
@@ -263,6 +276,8 @@ def procfs_downup_hammer(cfg) -> None:
 
 
 def main() -> None:
+    """ Ksft boiler plate main """
+
     with NetDrvEnv(__file__, queue_count=100) as cfg:
         ksft_run([check_pause, check_fec, pkt_byte_sum, qstat_by_ifindex,
                   check_down, procfs_hammer, procfs_downup_hammer],