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, 342 insertions, 0 deletions

diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h
new file mode 100644
index 000000000..bd52caa3b
--- /dev/null
+++ b/drivers/s390/net/lcs.h
@@ -0,0 +1,342 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*lcs.h*/
+
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/refcount.h>
+#include <asm/ccwdev.h>
+
+#define LCS_DBF_TEXT(level, name, text) \
+	do { \
+		debug_text_event(lcs_dbf_##name, level, text); \
+	} while (0)
+
+#define LCS_DBF_HEX(level,name,addr,len) \
+do { \
+	debug_event(lcs_dbf_##name,level,(void*)(addr),len); \
+} while (0)
+
+#define LCS_DBF_TEXT_(level,name,text...) \
+	do { \
+		if (debug_level_enabled(lcs_dbf_##name, level)) { \
+			sprintf(debug_buffer, text); \
+			debug_text_event(lcs_dbf_##name, level, debug_buffer); \
+		} \
+	} while (0)
+
+/**
+ *	sysfs related stuff
+ */
+#define CARD_FROM_DEV(cdev) \
+	(struct lcs_card *) dev_get_drvdata( \
+		&((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev);
+
+/**
+ * Enum for classifying detected devices.
+ */
+enum lcs_channel_types {
+	/* Device is not a channel  */
+	lcs_channel_type_none,
+
+	/* Device is a 2216 channel */
+	lcs_channel_type_parallel,
+
+	/* Device is a 2216 channel */
+	lcs_channel_type_2216,
+
+	/* Device is a OSA2 card */
+	lcs_channel_type_osa2
+};
+
+/**
+ * CCW commands used in this driver
+ */
+#define LCS_CCW_WRITE		0x01
+#define LCS_CCW_READ		0x02
+#define LCS_CCW_TRANSFER	0x08
+
+/**
+ * LCS device status primitives
+ */
+#define LCS_CMD_STARTLAN	0x01
+#define LCS_CMD_STOPLAN		0x02
+#define LCS_CMD_LANSTAT		0x04
+#define LCS_CMD_STARTUP		0x07
+#define LCS_CMD_SHUTDOWN	0x08
+#define LCS_CMD_QIPASSIST	0xb2
+#define LCS_CMD_SETIPM		0xb4
+#define LCS_CMD_DELIPM		0xb5
+
+#define LCS_INITIATOR_TCPIP	0x00
+#define LCS_INITIATOR_LGW	0x01
+#define LCS_STD_CMD_SIZE	16
+#define LCS_MULTICAST_CMD_SIZE	404
+
+/**
+ * LCS IPASSIST MASKS,only used when multicast is switched on
+ */
+/* Not supported by LCS */
+#define LCS_IPASS_ARP_PROCESSING	0x0001
+#define LCS_IPASS_IN_CHECKSUM_SUPPORT	0x0002
+#define LCS_IPASS_OUT_CHECKSUM_SUPPORT	0x0004
+#define LCS_IPASS_IP_FRAG_REASSEMBLY	0x0008
+#define LCS_IPASS_IP_FILTERING		0x0010
+/* Supported by lcs 3172 */
+#define LCS_IPASS_IPV6_SUPPORT		0x0020
+#define LCS_IPASS_MULTICAST_SUPPORT	0x0040
+
+/**
+ * LCS sense byte definitions
+ */
+#define LCS_SENSE_BYTE_0 		0
+#define LCS_SENSE_BYTE_1 		1
+#define LCS_SENSE_BYTE_2 		2
+#define LCS_SENSE_BYTE_3 		3
+#define LCS_SENSE_INTERFACE_DISCONNECT	0x01
+#define LCS_SENSE_EQUIPMENT_CHECK	0x10
+#define LCS_SENSE_BUS_OUT_CHECK		0x20
+#define LCS_SENSE_INTERVENTION_REQUIRED 0x40
+#define LCS_SENSE_CMD_REJECT		0x80
+#define LCS_SENSE_RESETTING_EVENT	0x80
+#define LCS_SENSE_DEVICE_ONLINE		0x20
+
+/**
+ * LCS packet type definitions
+ */
+#define LCS_FRAME_TYPE_CONTROL		0
+#define LCS_FRAME_TYPE_ENET		1
+#define LCS_FRAME_TYPE_TR		2
+#define LCS_FRAME_TYPE_FDDI		7
+#define LCS_FRAME_TYPE_AUTO		-1
+
+/**
+ * some more definitions,we will sort them later
+ */
+#define LCS_ILLEGAL_OFFSET		0xffff
+#define LCS_IOBUFFERSIZE		0x5000
+#define LCS_NUM_BUFFS			32	/* needs to be power of 2 */
+#define LCS_MAC_LENGTH			6
+#define LCS_INVALID_PORT_NO		-1
+#define LCS_LANCMD_TIMEOUT_DEFAULT      5
+
+/**
+ * Multicast state
+ */
+#define	 LCS_IPM_STATE_SET_REQUIRED	0
+#define	 LCS_IPM_STATE_DEL_REQUIRED	1
+#define	 LCS_IPM_STATE_ON_CARD		2
+
+/**
+ * LCS IP Assist declarations
+ * seems to be only used for multicast
+ */
+#define	 LCS_IPASS_ARP_PROCESSING	0x0001
+#define	 LCS_IPASS_INBOUND_CSUM_SUPP	0x0002
+#define	 LCS_IPASS_OUTBOUND_CSUM_SUPP	0x0004
+#define	 LCS_IPASS_IP_FRAG_REASSEMBLY	0x0008
+#define	 LCS_IPASS_IP_FILTERING		0x0010
+#define	 LCS_IPASS_IPV6_SUPPORT		0x0020
+#define	 LCS_IPASS_MULTICAST_SUPPORT	0x0040
+
+/**
+ * LCS Buffer states
+ */
+enum lcs_buffer_states {
+	LCS_BUF_STATE_EMPTY,	/* buffer is empty */
+	LCS_BUF_STATE_LOCKED,	/* buffer is locked, don't touch */
+	LCS_BUF_STATE_READY,	/* buffer is ready for read/write */
+	LCS_BUF_STATE_PROCESSED,
+};
+
+/**
+ * LCS Channel State Machine declarations
+ */
+enum lcs_channel_states {
+	LCS_CH_STATE_INIT,
+	LCS_CH_STATE_HALTED,
+	LCS_CH_STATE_STOPPED,
+	LCS_CH_STATE_RUNNING,
+	LCS_CH_STATE_SUSPENDED,
+	LCS_CH_STATE_CLEARED,
+	LCS_CH_STATE_ERROR,
+};
+
+/**
+ * LCS device state machine
+ */
+enum lcs_dev_states {
+	DEV_STATE_DOWN,
+	DEV_STATE_UP,
+	DEV_STATE_RECOVER,
+};
+
+enum lcs_threads {
+	LCS_SET_MC_THREAD 	= 1,
+	LCS_RECOVERY_THREAD 	= 2,
+};
+
+/**
+ * LCS struct declarations
+ */
+struct lcs_header {
+	__u16  offset;
+	__u8   type;
+	__u8   slot;
+}  __attribute__ ((packed));
+
+struct lcs_ip_mac_pair {
+	__be32  ip_addr;
+	__u8   mac_addr[LCS_MAC_LENGTH];
+	__u8   reserved[2];
+}  __attribute__ ((packed));
+
+struct lcs_ipm_list {
+	struct list_head list;
+	struct lcs_ip_mac_pair ipm;
+	__u8 ipm_state;
+};
+
+struct lcs_cmd {
+	__u16  offset;
+	__u8   type;
+	__u8   slot;
+	__u8   cmd_code;
+	__u8   initiator;
+	__u16  sequence_no;
+	__u16  return_code;
+	union {
+		struct {
+			__u8   lan_type;
+			__u8   portno;
+			__u16  parameter_count;
+			__u8   operator_flags[3];
+			__u8   reserved[3];
+		} lcs_std_cmd;
+		struct {
+			__u16  unused1;
+			__u16  buff_size;
+			__u8   unused2[6];
+		} lcs_startup;
+		struct {
+			__u8   lan_type;
+			__u8   portno;
+			__u8   unused[10];
+			__u8   mac_addr[LCS_MAC_LENGTH];
+			__u32  num_packets_deblocked;
+			__u32  num_packets_blocked;
+			__u32  num_packets_tx_on_lan;
+			__u32  num_tx_errors_detected;
+			__u32  num_tx_packets_disgarded;
+			__u32  num_packets_rx_from_lan;
+			__u32  num_rx_errors_detected;
+			__u32  num_rx_discarded_nobuffs_avail;
+			__u32  num_rx_packets_too_large;
+		} lcs_lanstat_cmd;
+#ifdef CONFIG_IP_MULTICAST
+		struct {
+			__u8   lan_type;
+			__u8   portno;
+			__u16  num_ip_pairs;
+			__u16  ip_assists_supported;
+			__u16  ip_assists_enabled;
+			__u16  version;
+			struct {
+				struct lcs_ip_mac_pair
+				ip_mac_pair[32];
+				__u32	  response_data;
+			} lcs_ipass_ctlmsg __attribute ((packed));
+		} lcs_qipassist __attribute__ ((packed));
+#endif /*CONFIG_IP_MULTICAST */
+	} cmd __attribute__ ((packed));
+}  __attribute__ ((packed));
+
+/**
+ * Forward declarations.
+ */
+struct lcs_card;
+struct lcs_channel;
+
+/**
+ * Definition of an lcs buffer.
+ */
+struct lcs_buffer {
+	enum lcs_buffer_states state;
+	void *data;
+	int count;
+	/* Callback for completion notification. */
+	void (*callback)(struct lcs_channel *, struct lcs_buffer *);
+};
+
+struct lcs_reply {
+	struct list_head list;
+	__u16 sequence_no;
+	refcount_t refcnt;
+	/* Callback for completion notification. */
+	void (*callback)(struct lcs_card *, struct lcs_cmd *);
+	wait_queue_head_t wait_q;
+	struct lcs_card *card;
+	struct timer_list timer;
+	int received;
+	int rc;
+};
+
+/**
+ * Definition of an lcs channel
+ */
+struct lcs_channel {
+	enum lcs_channel_states state;
+	struct ccw_device *ccwdev;
+	struct ccw1 ccws[LCS_NUM_BUFFS + 1];
+	wait_queue_head_t wait_q;
+	struct tasklet_struct irq_tasklet;
+	struct lcs_buffer iob[LCS_NUM_BUFFS];
+	int io_idx;
+	int buf_idx;
+};
+
+
+/**
+ * definition of the lcs card
+ */
+struct lcs_card {
+	spinlock_t lock;
+	spinlock_t ipm_lock;
+	enum lcs_dev_states state;
+	struct net_device *dev;
+	struct net_device_stats stats;
+	__be16 (*lan_type_trans)(struct sk_buff *skb,
+					 struct net_device *dev);
+	struct ccwgroup_device *gdev;
+	struct lcs_channel read;
+	struct lcs_channel write;
+	struct lcs_buffer *tx_buffer;
+	int tx_emitted;
+	struct list_head lancmd_waiters;
+	int lancmd_timeout;
+
+	struct work_struct kernel_thread_starter;
+	spinlock_t mask_lock;
+	unsigned long thread_start_mask;
+	unsigned long thread_running_mask;
+	unsigned long thread_allowed_mask;
+	wait_queue_head_t wait_q;
+
+#ifdef CONFIG_IP_MULTICAST
+	struct list_head ipm_list;
+#endif
+	__u8 mac[LCS_MAC_LENGTH];
+	__u16 ip_assists_supported;
+	__u16 ip_assists_enabled;
+	__s8 lan_type;
+	__u32 pkt_seq;
+	__u16 sequence_no;
+	__s16 portno;
+	/* Some info copied from probeinfo */
+	u8 device_forced;
+	u8 max_port_no;
+	u8 hint_port_no;
+	s16 port_protocol_no;
+}  __attribute__ ((aligned(8)));
+