Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...

1 files changed, 183 insertions, 0 deletions

diff --git a/drivers/net/wwan/iosm/iosm_ipc_mmio.h b/drivers/net/wwan/iosm/iosm_ipc_mmio.h
new file mode 100644
index 000000000000..45e6923da78f
--- /dev/null
+++ b/drivers/net/wwan/iosm/iosm_ipc_mmio.h
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Copyright (C) 2020-21 Intel Corporation.
+ */
+
+#ifndef IOSM_IPC_MMIO_H
+#define IOSM_IPC_MMIO_H
+
+/* Minimal IOSM CP VERSION which has valid CP_CAPABILITIES field */
+#define IOSM_CP_VERSION 0x0100UL
+
+/* DL dir Aggregation support mask */
+#define DL_AGGR BIT(23)
+
+/* UL dir Aggregation support mask */
+#define UL_AGGR BIT(22)
+
+/* UL flow credit support mask */
+#define UL_FLOW_CREDIT BIT(21)
+
+/* Possible states of the IPC finite state machine. */
+enum ipc_mem_device_ipc_state {
+	IPC_MEM_DEVICE_IPC_UNINIT,
+	IPC_MEM_DEVICE_IPC_INIT,
+	IPC_MEM_DEVICE_IPC_RUNNING,
+	IPC_MEM_DEVICE_IPC_RECOVERY,
+	IPC_MEM_DEVICE_IPC_ERROR,
+	IPC_MEM_DEVICE_IPC_DONT_CARE,
+	IPC_MEM_DEVICE_IPC_INVALID = -1
+};
+
+/* Boot ROM exit status. */
+enum rom_exit_code {
+	IMEM_ROM_EXIT_OPEN_EXT = 0x01,
+	IMEM_ROM_EXIT_OPEN_MEM = 0x02,
+	IMEM_ROM_EXIT_CERT_EXT = 0x10,
+	IMEM_ROM_EXIT_CERT_MEM = 0x20,
+	IMEM_ROM_EXIT_FAIL = 0xFF
+};
+
+/* Boot stages */
+enum ipc_mem_exec_stage {
+	IPC_MEM_EXEC_STAGE_RUN = 0x600DF00D,
+	IPC_MEM_EXEC_STAGE_CRASH = 0x8BADF00D,
+	IPC_MEM_EXEC_STAGE_CD_READY = 0xBADC0DED,
+	IPC_MEM_EXEC_STAGE_BOOT = 0xFEEDB007,
+	IPC_MEM_EXEC_STAGE_PSI = 0xFEEDBEEF,
+	IPC_MEM_EXEC_STAGE_EBL = 0xFEEDCAFE,
+	IPC_MEM_EXEC_STAGE_INVALID = 0xFFFFFFFF
+};
+
+/* mmio scratchpad info */
+struct mmio_offset {
+	int exec_stage;
+	int chip_info;
+	int rom_exit_code;
+	int psi_address;
+	int psi_size;
+	int ipc_status;
+	int context_info;
+	int ap_win_base;
+	int ap_win_end;
+	int cp_version;
+	int cp_capability;
+};
+
+/**
+ * struct iosm_mmio - MMIO region mapped to the doorbell scratchpad.
+ * @base:		Base address of MMIO region
+ * @dev:		Pointer to device structure
+ * @offset:		Start offset
+ * @context_info_addr:	Physical base address of context info structure
+ * @chip_info_version:	Version of chip info structure
+ * @chip_info_size:	Size of chip info structure
+ * @has_mux_lite:	It doesn't support mux aggergation
+ * @has_ul_flow_credit:	Ul flow credit support
+ * @has_slp_no_prot:	Device sleep no protocol support
+ * @has_mcr_support:	Usage of mcr support
+ */
+struct iosm_mmio {
+	unsigned char __iomem *base;
+	struct device *dev;
+	struct mmio_offset offset;
+	phys_addr_t context_info_addr;
+	unsigned int chip_info_version;
+	unsigned int chip_info_size;
+	u8 has_mux_lite:1,
+	   has_ul_flow_credit:1,
+	   has_slp_no_prot:1,
+	   has_mcr_support:1;
+};
+
+/**
+ * ipc_mmio_init - Allocate mmio instance data
+ * @mmio_addr:	Mapped AP base address of the MMIO area.
+ * @dev:	Pointer to device structure
+ *
+ * Returns: address of mmio instance data or NULL if fails.
+ */
+struct iosm_mmio *ipc_mmio_init(void __iomem *mmio_addr, struct device *dev);
+
+/**
+ * ipc_mmio_set_psi_addr_and_size - Set start address and size of the
+ *				    primary system image (PSI) for the
+ *				    FW dowload.
+ * @ipc_mmio:	Pointer to mmio instance
+ * @addr:	PSI address
+ * @size:	PSI immage size
+ */
+void ipc_mmio_set_psi_addr_and_size(struct iosm_mmio *ipc_mmio, dma_addr_t addr,
+				    u32 size);
+
+/**
+ * ipc_mmio_set_contex_info_addr - Stores the Context Info Address in
+ *				   MMIO instance to share it with CP during
+ *				   mmio_init.
+ * @ipc_mmio:	Pointer to mmio instance
+ * @addr:	64-bit address of AP context information.
+ */
+void ipc_mmio_set_contex_info_addr(struct iosm_mmio *ipc_mmio,
+				   phys_addr_t addr);
+
+/**
+ * ipc_mmio_get_cp_version - Get the CP IPC version
+ * @ipc_mmio:	Pointer to mmio instance
+ *
+ * Returns: version number on success and failure value on error.
+ */
+int ipc_mmio_get_cp_version(struct iosm_mmio *ipc_mmio);
+
+/**
+ * ipc_mmio_get_rom_exit_code - Get exit code from CP boot rom download app
+ * @ipc_mmio:	Pointer to mmio instance
+ *
+ * Returns: exit code from CP boot rom download APP
+ */
+enum rom_exit_code ipc_mmio_get_rom_exit_code(struct iosm_mmio *ipc_mmio);
+
+/**
+ * ipc_mmio_get_exec_stage - Query CP execution stage
+ * @ipc_mmio:	Pointer to mmio instance
+ *
+ * Returns: CP execution stage
+ */
+enum ipc_mem_exec_stage ipc_mmio_get_exec_stage(struct iosm_mmio *ipc_mmio);
+
+/**
+ * ipc_mmio_get_ipc_state - Query CP IPC state
+ * @ipc_mmio:	Pointer to mmio instance
+ *
+ * Returns: CP IPC state
+ */
+enum ipc_mem_device_ipc_state
+ipc_mmio_get_ipc_state(struct iosm_mmio *ipc_mmio);
+
+/**
+ * ipc_mmio_copy_chip_info - Copy size bytes of CP chip info structure
+ *			     into caller provided buffer
+ * @ipc_mmio:	Pointer to mmio instance
+ * @dest:	Pointer to caller provided buff
+ * @size:	Number of bytes to copy
+ */
+void ipc_mmio_copy_chip_info(struct iosm_mmio *ipc_mmio, void *dest,
+			     size_t size);
+
+/**
+ * ipc_mmio_config - Write context info and AP memory range addresses.
+ *		     This needs to be called when CP is in
+ *		     IPC_MEM_DEVICE_IPC_INIT state
+ *
+ * @ipc_mmio:	Pointer to mmio instance
+ */
+void ipc_mmio_config(struct iosm_mmio *ipc_mmio);
+
+/**
+ * ipc_mmio_update_cp_capability - Read and update modem capability, from mmio
+ *				   capability offset
+ *
+ * @ipc_mmio:	Pointer to mmio instance
+ */
+void ipc_mmio_update_cp_capability(struct iosm_mmio *ipc_mmio);
+
+#endif