Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 356 insertions, 0 deletions

diff --git a/drivers/s390/net/ctcm_fsms.h b/drivers/s390/net/ctcm_fsms.h
new file mode 100644
index 000000000..d98c48672
--- /dev/null
+++ b/drivers/s390/net/ctcm_fsms.h
@@ -0,0 +1,356 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2001, 2007
+ * Authors: 	Fritz Elfert (felfert@millenux.com)
+ * 		Peter Tiedemann (ptiedem@de.ibm.com)
+ * 	MPC additions :
+ *		Belinda Thompson (belindat@us.ibm.com)
+ *		Andy Richter (richtera@us.ibm.com)
+ */
+#ifndef _CTCM_FSMS_H_
+#define _CTCM_FSMS_H_
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/bitops.h>
+
+#include <linux/signal.h>
+#include <linux/string.h>
+
+#include <linux/ip.h>
+#include <linux/if_arp.h>
+#include <linux/tcp.h>
+#include <linux/skbuff.h>
+#include <linux/ctype.h>
+#include <net/dst.h>
+
+#include <linux/io.h>
+#include <asm/ccwdev.h>
+#include <asm/ccwgroup.h>
+#include <linux/uaccess.h>
+
+#include <asm/idals.h>
+
+#include "fsm.h"
+#include "ctcm_main.h"
+
+/*
+ * Definitions for the channel statemachine(s) for ctc and ctcmpc
+ *
+ * To allow better kerntyping, prefix-less definitions for channel states
+ * and channel events have been replaced :
+ * ch_event... -> ctc_ch_event...
+ * CH_EVENT... -> CTC_EVENT...
+ * ch_state... -> ctc_ch_state...
+ * CH_STATE... -> CTC_STATE...
+ */
+/*
+ * Events of the channel statemachine(s) for ctc and ctcmpc
+ */
+enum ctc_ch_events {
+	/*
+	 * Events, representing return code of
+	 * I/O operations (ccw_device_start, ccw_device_halt et al.)
+	 */
+	CTC_EVENT_IO_SUCCESS,
+	CTC_EVENT_IO_EBUSY,
+	CTC_EVENT_IO_ENODEV,
+	CTC_EVENT_IO_UNKNOWN,
+
+	CTC_EVENT_ATTNBUSY,
+	CTC_EVENT_ATTN,
+	CTC_EVENT_BUSY,
+	/*
+	 * Events, representing unit-check
+	 */
+	CTC_EVENT_UC_RCRESET,
+	CTC_EVENT_UC_RSRESET,
+	CTC_EVENT_UC_TXTIMEOUT,
+	CTC_EVENT_UC_TXPARITY,
+	CTC_EVENT_UC_HWFAIL,
+	CTC_EVENT_UC_RXPARITY,
+	CTC_EVENT_UC_ZERO,
+	CTC_EVENT_UC_UNKNOWN,
+	/*
+	 * Events, representing subchannel-check
+	 */
+	CTC_EVENT_SC_UNKNOWN,
+	/*
+	 * Events, representing machine checks
+	 */
+	CTC_EVENT_MC_FAIL,
+	CTC_EVENT_MC_GOOD,
+	/*
+	 * Event, representing normal IRQ
+	 */
+	CTC_EVENT_IRQ,
+	CTC_EVENT_FINSTAT,
+	/*
+	 * Event, representing timer expiry.
+	 */
+	CTC_EVENT_TIMER,
+	/*
+	 * Events, representing commands from upper levels.
+	 */
+	CTC_EVENT_START,
+	CTC_EVENT_STOP,
+	CTC_NR_EVENTS,
+	/*
+	 * additional MPC events
+	 */
+	CTC_EVENT_SEND_XID = CTC_NR_EVENTS,
+	CTC_EVENT_RSWEEP_TIMER,
+	/*
+	 * MUST be always the last element!!
+	 */
+	CTC_MPC_NR_EVENTS,
+};
+
+/*
+ * States of the channel statemachine(s) for ctc and ctcmpc.
+ */
+enum ctc_ch_states {
+	/*
+	 * Channel not assigned to any device,
+	 * initial state, direction invalid
+	 */
+	CTC_STATE_IDLE,
+	/*
+	 * Channel assigned but not operating
+	 */
+	CTC_STATE_STOPPED,
+	CTC_STATE_STARTWAIT,
+	CTC_STATE_STARTRETRY,
+	CTC_STATE_SETUPWAIT,
+	CTC_STATE_RXINIT,
+	CTC_STATE_TXINIT,
+	CTC_STATE_RX,
+	CTC_STATE_TX,
+	CTC_STATE_RXIDLE,
+	CTC_STATE_TXIDLE,
+	CTC_STATE_RXERR,
+	CTC_STATE_TXERR,
+	CTC_STATE_TERM,
+	CTC_STATE_DTERM,
+	CTC_STATE_NOTOP,
+	CTC_NR_STATES,     /* MUST be the last element of non-expanded states */
+	/*
+	 * additional MPC states
+	 */
+	CH_XID0_PENDING = CTC_NR_STATES,
+	CH_XID0_INPROGRESS,
+	CH_XID7_PENDING,
+	CH_XID7_PENDING1,
+	CH_XID7_PENDING2,
+	CH_XID7_PENDING3,
+	CH_XID7_PENDING4,
+	CTC_MPC_NR_STATES, /* MUST be the last element of expanded mpc states */
+};
+
+extern const char *ctc_ch_event_names[];
+
+extern const char *ctc_ch_state_names[];
+
+void ctcm_ccw_check_rc(struct channel *ch, int rc, char *msg);
+void ctcm_purge_skb_queue(struct sk_buff_head *q);
+
+/*
+ * ----- non-static actions for ctcm channel statemachine -----
+ *
+ */
+void ctcm_chx_txidle(fsm_instance *fi, int event, void *arg);
+
+/*
+ * ----- FSM (state/event/action) of the ctcm channel statemachine -----
+ */
+extern const fsm_node ch_fsm[];
+extern int ch_fsm_len;
+
+
+/*
+ * ----- non-static actions for ctcmpc channel statemachine ----
+ *
+ */
+/* shared :
+void ctcm_chx_txidle(fsm_instance * fi, int event, void *arg);
+ */
+void ctcmpc_chx_rxidle(fsm_instance *fi, int event, void *arg);
+
+/*
+ * ----- FSM (state/event/action) of the ctcmpc channel statemachine -----
+ */
+extern const fsm_node ctcmpc_ch_fsm[];
+extern int mpc_ch_fsm_len;
+
+/*
+ * Definitions for the device interface statemachine for ctc and mpc
+ */
+
+/*
+ * States of the device interface statemachine.
+ */
+enum dev_states {
+	DEV_STATE_STOPPED,
+	DEV_STATE_STARTWAIT_RXTX,
+	DEV_STATE_STARTWAIT_RX,
+	DEV_STATE_STARTWAIT_TX,
+	DEV_STATE_STOPWAIT_RXTX,
+	DEV_STATE_STOPWAIT_RX,
+	DEV_STATE_STOPWAIT_TX,
+	DEV_STATE_RUNNING,
+	/*
+	 * MUST be always the last element!!
+	 */
+	CTCM_NR_DEV_STATES
+};
+
+extern const char *dev_state_names[];
+
+/*
+ * Events of the device interface statemachine.
+ * ctcm and ctcmpc
+ */
+enum dev_events {
+	DEV_EVENT_START,
+	DEV_EVENT_STOP,
+	DEV_EVENT_RXUP,
+	DEV_EVENT_TXUP,
+	DEV_EVENT_RXDOWN,
+	DEV_EVENT_TXDOWN,
+	DEV_EVENT_RESTART,
+	/*
+	 * MUST be always the last element!!
+	 */
+	CTCM_NR_DEV_EVENTS
+};
+
+extern const char *dev_event_names[];
+
+/*
+ * Actions for the device interface statemachine.
+ * ctc and ctcmpc
+ */
+/*
+static void dev_action_start(fsm_instance * fi, int event, void *arg);
+static void dev_action_stop(fsm_instance * fi, int event, void *arg);
+static void dev_action_restart(fsm_instance *fi, int event, void *arg);
+static void dev_action_chup(fsm_instance * fi, int event, void *arg);
+static void dev_action_chdown(fsm_instance * fi, int event, void *arg);
+*/
+
+/*
+ * The (state/event/action) fsm table of the device interface statemachine.
+ * ctcm and ctcmpc
+ */
+extern const fsm_node dev_fsm[];
+extern int dev_fsm_len;
+
+
+/*
+ * Definitions for the MPC Group statemachine
+ */
+
+/*
+ * MPC Group Station FSM States
+
+State Name		When In This State
+======================	=======================================
+MPCG_STATE_RESET	Initial State When Driver Loaded
+			We receive and send NOTHING
+
+MPCG_STATE_INOP         INOP Received.
+			Group level non-recoverable error
+
+MPCG_STATE_READY	XID exchanges for at least 1 write and
+			1 read channel have completed.
+			Group is ready for data transfer.
+
+States from ctc_mpc_alloc_channel
+==============================================================
+MPCG_STATE_XID2INITW	Awaiting XID2(0) Initiation
+			      ATTN from other side will start
+			      XID negotiations.
+			      Y-side protocol only.
+
+MPCG_STATE_XID2INITX	XID2(0) negotiations are in progress.
+			      At least 1, but not all, XID2(0)'s
+			      have been received from partner.
+
+MPCG_STATE_XID7INITW	XID2(0) complete
+			      No XID2(7)'s have yet been received.
+			      XID2(7) negotiations pending.
+
+MPCG_STATE_XID7INITX	XID2(7) negotiations in progress.
+			      At least 1, but not all, XID2(7)'s
+			      have been received from partner.
+
+MPCG_STATE_XID7INITF	XID2(7) negotiations complete.
+			      Transitioning to READY.
+
+MPCG_STATE_READY	      Ready for Data Transfer.
+
+
+States from ctc_mpc_establish_connectivity call
+==============================================================
+MPCG_STATE_XID0IOWAIT	Initiating XID2(0) negotiations.
+			      X-side protocol only.
+			      ATTN-BUSY from other side will convert
+			      this to Y-side protocol and the
+			      ctc_mpc_alloc_channel flow will begin.
+
+MPCG_STATE_XID0IOWAIX	XID2(0) negotiations are in progress.
+			      At least 1, but not all, XID2(0)'s
+			      have been received from partner.
+
+MPCG_STATE_XID7INITI	XID2(0) complete
+			      No XID2(7)'s have yet been received.
+			      XID2(7) negotiations pending.
+
+MPCG_STATE_XID7INITZ	XID2(7) negotiations in progress.
+			      At least 1, but not all, XID2(7)'s
+			      have been received from partner.
+
+MPCG_STATE_XID7INITF	XID2(7) negotiations complete.
+			      Transitioning to READY.
+
+MPCG_STATE_READY	      Ready for Data Transfer.
+
+*/
+
+enum mpcg_events {
+	MPCG_EVENT_INOP,
+	MPCG_EVENT_DISCONC,
+	MPCG_EVENT_XID0DO,
+	MPCG_EVENT_XID2,
+	MPCG_EVENT_XID2DONE,
+	MPCG_EVENT_XID7DONE,
+	MPCG_EVENT_TIMER,
+	MPCG_EVENT_DOIO,
+	MPCG_NR_EVENTS,
+};
+
+enum mpcg_states {
+	MPCG_STATE_RESET,
+	MPCG_STATE_INOP,
+	MPCG_STATE_XID2INITW,
+	MPCG_STATE_XID2INITX,
+	MPCG_STATE_XID7INITW,
+	MPCG_STATE_XID7INITX,
+	MPCG_STATE_XID0IOWAIT,
+	MPCG_STATE_XID0IOWAIX,
+	MPCG_STATE_XID7INITI,
+	MPCG_STATE_XID7INITZ,
+	MPCG_STATE_XID7INITF,
+	MPCG_STATE_FLOWC,
+	MPCG_STATE_READY,
+	MPCG_NR_STATES,
+};
+
+#endif
+/* --- This is the END my friend --- */