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, 325 insertions, 0 deletions

diff --git a/drivers/net/wwan/iosm/iosm_ipc_mux_codec.h b/drivers/net/wwan/iosm/iosm_ipc_mux_codec.h
new file mode 100644
index 000000000..5d4e3b895
--- /dev/null
+++ b/drivers/net/wwan/iosm/iosm_ipc_mux_codec.h
@@ -0,0 +1,325 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Copyright (C) 2020-21 Intel Corporation.
+ */
+
+#ifndef IOSM_IPC_MUX_CODEC_H
+#define IOSM_IPC_MUX_CODEC_H
+
+#include "iosm_ipc_mux.h"
+
+/* Queue level size and reporting
+ * >1 is enable, 0 is disable
+ */
+#define MUX_QUEUE_LEVEL 1
+
+/* ADB finish timer value */
+#define IOSM_AGGR_MUX_ADB_FINISH_TIMEOUT_NSEC (500 * 1000)
+
+/* Enables the flow control (Flow is not allowed) */
+#define IOSM_AGGR_MUX_CMD_FLOW_CTL_ENABLE 5
+
+/* Disables the flow control (Flow is allowed) */
+#define IOSM_AGGR_MUX_CMD_FLOW_CTL_DISABLE 6
+
+/* ACK the flow control command. Shall have the same Transaction ID as the
+ * matching FLOW_CTL command
+ */
+#define IOSM_AGGR_MUX_CMD_FLOW_CTL_ACK 7
+
+/* Aggregation Protocol Command for report packet indicating link quality
+ */
+#define IOSM_AGGR_MUX_CMD_LINK_STATUS_REPORT 8
+
+/* Response to a report packet */
+#define IOSM_AGGR_MUX_CMD_LINK_STATUS_REPORT_RESP 9
+
+/* ACBH: Signature of the Aggregated Command Block Header. */
+#define IOSM_AGGR_MUX_SIG_ACBH 0x48424341
+
+/* ADTH: Signature of the Aggregated Datagram Table Header. */
+#define IOSM_AGGR_MUX_SIG_ADTH 0x48544441
+
+/* ADBH: Signature of the Aggregated Data Block Header. */
+#define IOSM_AGGR_MUX_SIG_ADBH 0x48424441
+
+/* ADGH: Signature of the Datagram Header. */
+#define IOSM_AGGR_MUX_SIG_ADGH 0x48474441
+
+/* Size of the buffer for the IP MUX commands. */
+#define MUX_MAX_UL_ACB_BUF_SIZE 256
+
+/* Maximum number of packets in a go per session */
+#define MUX_MAX_UL_DG_ENTRIES 100
+
+/* ADGH: Signature of the Datagram Header. */
+#define MUX_SIG_ADGH 0x48474441
+
+/* CMDH: Signature of the Command Header. */
+#define MUX_SIG_CMDH 0x48444D43
+
+/* QLTH: Signature of the Queue Level Table */
+#define MUX_SIG_QLTH 0x48544C51
+
+/* FCTH: Signature of the Flow Credit Table */
+#define MUX_SIG_FCTH 0x48544346
+
+/* MUX UL session threshold factor */
+#define IPC_MEM_MUX_UL_SESS_FCOFF_THRESHOLD_FACTOR (4)
+
+/* Size of the buffer for the IP MUX Lite data buffer. */
+#define IPC_MEM_MAX_DL_MUX_LITE_BUF_SIZE (2 * 1024)
+
+/* MUX UL session threshold in number of packets */
+#define IPC_MEM_MUX_UL_SESS_FCON_THRESHOLD (64)
+
+/* Default time out for sending IPC session commands like
+ * open session, close session etc
+ * unit : milliseconds
+ */
+#define IPC_MUX_CMD_RUN_DEFAULT_TIMEOUT 1000 /* 1 second */
+
+/* MUX UL flow control lower threshold in bytes */
+#define IPC_MEM_MUX_UL_FLOWCTRL_LOW_B 10240 /* 10KB */
+
+/* MUX UL flow control higher threshold in bytes (5ms worth of data)*/
+#define IPC_MEM_MUX_UL_FLOWCTRL_HIGH_B (110 * 1024)
+
+/**
+ * struct mux_cmdh - Structure of Command Header.
+ * @signature:		Signature of the Command Header.
+ * @cmd_len:		Length (in bytes) of the Aggregated Command Block.
+ * @if_id:		ID of the interface the commands in the table belong to.
+ * @reserved:		Reserved. Set to zero.
+ * @next_cmd_index:	Index (in bytes) to the next command in the buffer.
+ * @command_type:	Command Enum. See table Session Management chapter for
+ *			details.
+ * @transaction_id:	The Transaction ID shall be unique to the command
+ * @param:		Optional parameters used with the command.
+ */
+struct mux_cmdh {
+	__le32 signature;
+	__le16 cmd_len;
+	u8 if_id;
+	u8 reserved;
+	__le32 next_cmd_index;
+	__le32 command_type;
+	__le32 transaction_id;
+	union mux_cmd_param param;
+};
+
+/**
+ * struct mux_acbh -    Structure of the Aggregated Command Block Header.
+ * @signature:          Signature of the Aggregated Command Block Header.
+ * @reserved:           Reserved bytes. Set to zero.
+ * @sequence_nr:        Block sequence number.
+ * @block_length:       Length (in bytes) of the Aggregated Command Block.
+ * @first_cmd_index:    Index (in bytes) to the first command in the buffer.
+ */
+struct mux_acbh {
+	__le32 signature;
+	__le16 reserved;
+	__le16 sequence_nr;
+	__le32 block_length;
+	__le32 first_cmd_index;
+};
+
+/**
+ * struct mux_adbh - Structure of the Aggregated Data Block Header.
+ * @signature:		Signature of the Aggregated Data Block Header.
+ * @reserved:		Reserved bytes. Set to zero.
+ * @sequence_nr:	Block sequence number.
+ * @block_length:	Length (in bytes) of the Aggregated Data Block.
+ * @first_table_index:	Index (in bytes) to the first Datagram Table in
+ *			the buffer.
+ */
+struct mux_adbh {
+	__le32 signature;
+	__le16 reserved;
+	__le16 sequence_nr;
+	__le32 block_length;
+	__le32 first_table_index;
+};
+
+/**
+ * struct mux_adth - Structure of the Aggregated Datagram Table Header.
+ * @signature:          Signature of the Aggregated Datagram Table Header.
+ * @table_length:       Length (in bytes) of the datagram table.
+ * @if_id:              ID of the interface the datagrams in the table
+ *                      belong to.
+ * @opt_ipv4v6:         Indicates IPv4(=0)/IPv6(=1) hint.
+ * @reserved:           Reserved bits. Set to zero.
+ * @next_table_index:   Index (in bytes) to the next Datagram Table in
+ *                      the buffer.
+ * @reserved2:          Reserved bytes. Set to zero
+ * @dg:                 datagramm table with variable length
+ */
+struct mux_adth {
+	__le32 signature;
+	__le16 table_length;
+	u8 if_id;
+	u8 opt_ipv4v6;
+	__le32 next_table_index;
+	__le32 reserved2;
+	struct mux_adth_dg dg;
+};
+
+/**
+ * struct mux_adgh - Aggregated Datagram Header.
+ * @signature:		Signature of the Aggregated Datagram Header(0x48474441)
+ * @length:		Length (in bytes) of the datagram header. This length
+ *			shall include the header size. Min value: 0x10
+ * @if_id:		ID of the interface the datagrams belong to
+ * @opt_ipv4v6:		Indicates IPv4(=0)/IPv6(=1), It is optional if not
+ *			used set it to zero.
+ * @reserved:		Reserved bits. Set to zero.
+ * @service_class:	Service class identifier for the datagram.
+ * @next_count:		Count of the datagrams that shall be following this
+ *			datagrams for this interface. A count of zero means
+ *			the next datagram may not belong to this interface.
+ * @reserved1:		Reserved bytes, Set to zero
+ */
+struct mux_adgh {
+	__le32 signature;
+	__le16 length;
+	u8 if_id;
+	u8 opt_ipv4v6;
+	u8 service_class;
+	u8 next_count;
+	u8 reserved1[6];
+};
+
+/**
+ * struct mux_lite_cmdh - MUX Lite Command Header
+ * @signature:		Signature of the Command Header(0x48444D43)
+ * @cmd_len:		Length (in bytes) of the command. This length shall
+ *			include the header size. Minimum value: 0x10
+ * @if_id:		ID of the interface the commands in the table belong to.
+ * @reserved:		Reserved Set to zero.
+ * @command_type:	Command Enum.
+ * @transaction_id:	4 byte value shall be generated and sent along with a
+ *			command Responses and ACKs shall have the same
+ *			Transaction ID as their commands. It shall be unique to
+ *			the command transaction on the given interface.
+ * @param:		Optional parameters used with the command.
+ */
+struct mux_lite_cmdh {
+	__le32 signature;
+	__le16 cmd_len;
+	u8 if_id;
+	u8 reserved;
+	__le32 command_type;
+	__le32 transaction_id;
+	union mux_cmd_param param;
+};
+
+/**
+ * struct mux_lite_vfl - value field in generic table
+ * @nr_of_bytes:	Number of bytes available to transmit in the queue.
+ */
+struct mux_lite_vfl {
+	__le32 nr_of_bytes;
+};
+
+/**
+ * struct ipc_mem_lite_gen_tbl - Generic table format for Queue Level
+ *				 and Flow Credit
+ * @signature:	Signature of the table
+ * @length:	Length of the table
+ * @if_id:	ID of the interface the table belongs to
+ * @vfl_length:	Value field length
+ * @reserved:	Reserved
+ * @vfl:	Value field of variable length
+ */
+struct ipc_mem_lite_gen_tbl {
+	__le32 signature;
+	__le16 length;
+	u8 if_id;
+	u8 vfl_length;
+	u32 reserved[2];
+	struct mux_lite_vfl vfl;
+};
+
+/**
+ * struct mux_type_cmdh - Structure of command header for mux lite and aggr
+ * @ack_lite:	MUX Lite Command Header pointer
+ * @ack_aggr:	Command Header pointer
+ */
+union mux_type_cmdh {
+	struct mux_lite_cmdh *ack_lite;
+	struct mux_cmdh *ack_aggr;
+};
+
+/**
+ * struct mux_type_header - Structure of mux header type
+ * @adgh:	Aggregated Datagram Header pointer
+ * @adbh:	Aggregated Data Block Header pointer
+ */
+union mux_type_header {
+	struct mux_adgh *adgh;
+	struct mux_adbh *adbh;
+};
+
+void ipc_mux_dl_decode(struct iosm_mux *ipc_mux, struct sk_buff *skb);
+
+/**
+ * ipc_mux_dl_acb_send_cmds - Respond to the Command blocks.
+ * @ipc_mux:		Pointer to MUX data-struct
+ * @cmd_type:		Command
+ * @if_id:		Session interface id.
+ * @transaction_id:	Command transaction id.
+ * @param:		Pointer to command params.
+ * @res_size:		Response size
+ * @blocking:		True for blocking send
+ * @respond:		If true return transaction ID
+ *
+ * Returns:		0 in success and failure value on error
+ */
+int ipc_mux_dl_acb_send_cmds(struct iosm_mux *ipc_mux, u32 cmd_type, u8 if_id,
+			     u32 transaction_id, union mux_cmd_param *param,
+			     size_t res_size, bool blocking, bool respond);
+
+/**
+ * ipc_mux_netif_tx_flowctrl - Enable/Disable TX flow control on MUX sessions.
+ * @session:	Pointer to mux_session struct
+ * @idx:	Session ID
+ * @on:		true for Enable and false for disable flow control
+ */
+void ipc_mux_netif_tx_flowctrl(struct mux_session *session, int idx, bool on);
+
+/**
+ * ipc_mux_ul_trigger_encode - Route the UL packet through the IP MUX layer
+ *			       for encoding.
+ * @ipc_mux:	Pointer to MUX data-struct
+ * @if_id:	Session ID.
+ * @skb:	Pointer to ipc_skb.
+ *
+ * Returns: 0 if successfully encoded
+ *	    failure value on error
+ *	    -EBUSY if packet has to be retransmitted.
+ */
+int ipc_mux_ul_trigger_encode(struct iosm_mux *ipc_mux, int if_id,
+			      struct sk_buff *skb);
+/**
+ * ipc_mux_ul_data_encode - UL encode function for calling from Tasklet context.
+ * @ipc_mux:	Pointer to MUX data-struct
+ *
+ * Returns: TRUE if any packet of any session is encoded FALSE otherwise.
+ */
+bool ipc_mux_ul_data_encode(struct iosm_mux *ipc_mux);
+
+/**
+ * ipc_mux_ul_encoded_process - Handles the Modem processed UL data by adding
+ *				the SKB to the UL free list.
+ * @ipc_mux:	Pointer to MUX data-struct
+ * @skb:	Pointer to ipc_skb.
+ */
+void ipc_mux_ul_encoded_process(struct iosm_mux *ipc_mux, struct sk_buff *skb);
+
+void ipc_mux_ul_adb_finish(struct iosm_mux *ipc_mux);
+
+void ipc_mux_ul_adb_update_ql(struct iosm_mux *ipc_mux, struct mux_adb *p_adb,
+			      int session_id, int qlth_n_ql_size,
+			      struct sk_buff_head *ul_list);
+
+#endif