include/linux/switchtec.h - kernel/msm-4.19 - Gitiles

 /*
  * Microsemi Switchtec PCIe Driver
  * Copyright (c) 2017, Microsemi Corporation
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
  */

 #ifndef _SWITCHTEC_H
 #define _SWITCHTEC_H

 #include <linux/pci.h>
 #include <linux/cdev.h>

 #define MICROSEMI_VENDOR_ID         0x11f8
 #define MICROSEMI_NTB_CLASSCODE     0x068000
 #define MICROSEMI_MGMT_CLASSCODE    0x058000

 #define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024
 #define SWITCHTEC_MAX_PFF_CSR 48

 #define SWITCHTEC_EVENT_OCCURRED BIT(0)
 #define SWITCHTEC_EVENT_CLEAR    BIT(0)
 #define SWITCHTEC_EVENT_EN_LOG   BIT(1)
 #define SWITCHTEC_EVENT_EN_CLI   BIT(2)
 #define SWITCHTEC_EVENT_EN_IRQ   BIT(3)
 #define SWITCHTEC_EVENT_FATAL    BIT(4)

 enum {
 	SWITCHTEC_GAS_MRPC_OFFSET       = 0x0000,
 	SWITCHTEC_GAS_TOP_CFG_OFFSET    = 0x1000,
 	SWITCHTEC_GAS_SW_EVENT_OFFSET   = 0x1800,
 	SWITCHTEC_GAS_SYS_INFO_OFFSET   = 0x2000,
 	SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200,
 	SWITCHTEC_GAS_PART_CFG_OFFSET   = 0x4000,
 	SWITCHTEC_GAS_NTB_OFFSET        = 0x10000,
 	SWITCHTEC_GAS_PFF_CSR_OFFSET    = 0x134000,
 };

 struct mrpc_regs {
 	u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
 	u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
 	u32 cmd;
 	u32 status;
 	u32 ret_value;
 } __packed;

 enum mrpc_status {
 	SWITCHTEC_MRPC_STATUS_INPROGRESS = 1,
 	SWITCHTEC_MRPC_STATUS_DONE = 2,
 	SWITCHTEC_MRPC_STATUS_ERROR = 0xFF,
 	SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100,
 };

 struct sw_event_regs {
 	u64 event_report_ctrl;
 	u64 reserved1;
 	u64 part_event_bitmap;
 	u64 reserved2;
 	u32 global_summary;
 	u32 reserved3[3];
 	u32 stack_error_event_hdr;
 	u32 stack_error_event_data;
 	u32 reserved4[4];
 	u32 ppu_error_event_hdr;
 	u32 ppu_error_event_data;
 	u32 reserved5[4];
 	u32 isp_error_event_hdr;
 	u32 isp_error_event_data;
 	u32 reserved6[4];
 	u32 sys_reset_event_hdr;
 	u32 reserved7[5];
 	u32 fw_exception_hdr;
 	u32 reserved8[5];
 	u32 fw_nmi_hdr;
 	u32 reserved9[5];
 	u32 fw_non_fatal_hdr;
 	u32 reserved10[5];
 	u32 fw_fatal_hdr;
 	u32 reserved11[5];
 	u32 twi_mrpc_comp_hdr;
 	u32 twi_mrpc_comp_data;
 	u32 reserved12[4];
 	u32 twi_mrpc_comp_async_hdr;
 	u32 twi_mrpc_comp_async_data;
 	u32 reserved13[4];
 	u32 cli_mrpc_comp_hdr;
 	u32 cli_mrpc_comp_data;
 	u32 reserved14[4];
 	u32 cli_mrpc_comp_async_hdr;
 	u32 cli_mrpc_comp_async_data;
 	u32 reserved15[4];
 	u32 gpio_interrupt_hdr;
 	u32 gpio_interrupt_data;
 	u32 reserved16[4];
 } __packed;

 enum {
 	SWITCHTEC_CFG0_RUNNING = 0x04,
 	SWITCHTEC_CFG1_RUNNING = 0x05,
 	SWITCHTEC_IMG0_RUNNING = 0x03,
 	SWITCHTEC_IMG1_RUNNING = 0x07,
 };

 struct sys_info_regs {
 	u32 device_id;
 	u32 device_version;
 	u32 firmware_version;
 	u32 reserved1;
 	u32 vendor_table_revision;
 	u32 table_format_version;
 	u32 partition_id;
 	u32 cfg_file_fmt_version;
 	u16 cfg_running;
 	u16 img_running;
 	u32 reserved2[57];
 	char vendor_id[8];
 	char product_id[16];
 	char product_revision[4];
 	char component_vendor[8];
 	u16 component_id;
 	u8 component_revision;
 } __packed;

 struct flash_info_regs {
 	u32 flash_part_map_upd_idx;

 	struct active_partition_info {
 		u32 address;
 		u32 build_version;
 		u32 build_string;
 	} active_img;

 	struct active_partition_info active_cfg;
 	struct active_partition_info inactive_img;
 	struct active_partition_info inactive_cfg;

 	u32 flash_length;

 	struct partition_info {
 		u32 address;
 		u32 length;
 	} cfg0;

 	struct partition_info cfg1;
 	struct partition_info img0;
 	struct partition_info img1;
 	struct partition_info nvlog;
 	struct partition_info vendor[8];
 };

 enum {
 	SWITCHTEC_NTB_REG_INFO_OFFSET   = 0x0000,
 	SWITCHTEC_NTB_REG_CTRL_OFFSET   = 0x4000,
 	SWITCHTEC_NTB_REG_DBMSG_OFFSET  = 0x64000,
 };

 struct ntb_info_regs {
 	u8  partition_count;
 	u8  partition_id;
 	u16 reserved1;
 	u64 ep_map;
 	u16 requester_id;
 } __packed;

 struct part_cfg_regs {
 	u32 status;
 	u32 state;
 	u32 port_cnt;
 	u32 usp_port_mode;
 	u32 usp_pff_inst_id;
 	u32 vep_pff_inst_id;
 	u32 dsp_pff_inst_id[47];
 	u32 reserved1[11];
 	u16 vep_vector_number;
 	u16 usp_vector_number;
 	u32 port_event_bitmap;
 	u32 reserved2[3];
 	u32 part_event_summary;
 	u32 reserved3[3];
 	u32 part_reset_hdr;
 	u32 part_reset_data[5];
 	u32 mrpc_comp_hdr;
 	u32 mrpc_comp_data[5];
 	u32 mrpc_comp_async_hdr;
 	u32 mrpc_comp_async_data[5];
 	u32 dyn_binding_hdr;
 	u32 dyn_binding_data[5];
 	u32 reserved4[159];
 } __packed;

 enum {
 	NTB_CTRL_PART_OP_LOCK = 0x1,
 	NTB_CTRL_PART_OP_CFG = 0x2,
 	NTB_CTRL_PART_OP_RESET = 0x3,

 	NTB_CTRL_PART_STATUS_NORMAL = 0x1,
 	NTB_CTRL_PART_STATUS_LOCKED = 0x2,
 	NTB_CTRL_PART_STATUS_LOCKING = 0x3,
 	NTB_CTRL_PART_STATUS_CONFIGURING = 0x4,
 	NTB_CTRL_PART_STATUS_RESETTING = 0x5,

 	NTB_CTRL_BAR_VALID = 1 << 0,
 	NTB_CTRL_BAR_DIR_WIN_EN = 1 << 4,
 	NTB_CTRL_BAR_LUT_WIN_EN = 1 << 5,

 	NTB_CTRL_REQ_ID_EN = 1 << 0,

 	NTB_CTRL_LUT_EN = 1 << 0,

 	NTB_PART_CTRL_ID_PROT_DIS = 1 << 0,
 };

 struct ntb_ctrl_regs {
 	u32 partition_status;
 	u32 partition_op;
 	u32 partition_ctrl;
 	u32 bar_setup;
 	u32 bar_error;
 	u16 lut_table_entries;
 	u16 lut_table_offset;
 	u32 lut_error;
 	u16 req_id_table_size;
 	u16 req_id_table_offset;
 	u32 req_id_error;
 	u32 reserved1[7];
 	struct {
 		u32 ctl;
 		u32 win_size;
 		u64 xlate_addr;
 	} bar_entry[6];
 	u32 reserved2[216];
 	u32 req_id_table[256];
 	u32 reserved3[512];
 	u64 lut_entry[512];
 } __packed;

 #define NTB_DBMSG_IMSG_STATUS BIT_ULL(32)
 #define NTB_DBMSG_IMSG_MASK   BIT_ULL(40)

 struct ntb_dbmsg_regs {
 	u32 reserved1[1024];
 	u64 odb;
 	u64 odb_mask;
 	u64 idb;
 	u64 idb_mask;
 	u8  idb_vec_map[64];
 	u32 msg_map;
 	u32 reserved2;
 	struct {
 		u32 msg;
 		u32 status;
 	} omsg[4];

 	struct {
 		u32 msg;
 		u8  status;
 		u8  mask;
 		u8  src;
 		u8  reserved;
 	} imsg[4];

 	u8 reserved3[3928];
 	u8 msix_table[1024];
 	u8 reserved4[3072];
 	u8 pba[24];
 	u8 reserved5[4072];
 } __packed;

 enum {
 	SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0,
 	SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1,
 	SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2,
 	SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3,
 };

 struct pff_csr_regs {
 	u16 vendor_id;
 	u16 device_id;
 	u32 pci_cfg_header[15];
 	u32 pci_cap_region[48];
 	u32 pcie_cap_region[448];
 	u32 indirect_gas_window[128];
 	u32 indirect_gas_window_off;
 	u32 reserved[127];
 	u32 pff_event_summary;
 	u32 reserved2[3];
 	u32 aer_in_p2p_hdr;
 	u32 aer_in_p2p_data[5];
 	u32 aer_in_vep_hdr;
 	u32 aer_in_vep_data[5];
 	u32 dpc_hdr;
 	u32 dpc_data[5];
 	u32 cts_hdr;
 	u32 cts_data[5];
 	u32 reserved3[6];
 	u32 hotplug_hdr;
 	u32 hotplug_data[5];
 	u32 ier_hdr;
 	u32 ier_data[5];
 	u32 threshold_hdr;
 	u32 threshold_data[5];
 	u32 power_mgmt_hdr;
 	u32 power_mgmt_data[5];
 	u32 tlp_throttling_hdr;
 	u32 tlp_throttling_data[5];
 	u32 force_speed_hdr;
 	u32 force_speed_data[5];
 	u32 credit_timeout_hdr;
 	u32 credit_timeout_data[5];
 	u32 link_state_hdr;
 	u32 link_state_data[5];
 	u32 reserved4[174];
 } __packed;

 struct switchtec_ntb;

 struct switchtec_dev {
 	struct pci_dev *pdev;
 	struct device dev;
 	struct cdev cdev;

 	int partition;
 	int partition_count;
 	int pff_csr_count;
 	char pff_local[SWITCHTEC_MAX_PFF_CSR];

 	void __iomem *mmio;
 	struct mrpc_regs __iomem *mmio_mrpc;
 	struct sw_event_regs __iomem *mmio_sw_event;
 	struct sys_info_regs __iomem *mmio_sys_info;
 	struct flash_info_regs __iomem *mmio_flash_info;
 	struct ntb_info_regs __iomem *mmio_ntb;
 	struct part_cfg_regs __iomem *mmio_part_cfg;
 	struct part_cfg_regs __iomem *mmio_part_cfg_all;
 	struct pff_csr_regs __iomem *mmio_pff_csr;

 	/*
 	 * The mrpc mutex must be held when accessing the other
 	 * mrpc_ fields, alive flag and stuser->state field
 	 */
 	struct mutex mrpc_mutex;
 	struct list_head mrpc_queue;
 	int mrpc_busy;
 	struct work_struct mrpc_work;
 	struct delayed_work mrpc_timeout;
 	bool alive;

 	wait_queue_head_t event_wq;
 	atomic_t event_cnt;

 	struct work_struct link_event_work;
 	void (*link_notifier)(struct switchtec_dev *stdev);
 	u8 link_event_count[SWITCHTEC_MAX_PFF_CSR];

 	struct switchtec_ntb *sndev;
 };

 static inline struct switchtec_dev *to_stdev(struct device *dev)
 {
 	return container_of(dev, struct switchtec_dev, dev);
 }

 extern struct class *switchtec_class;

 #endif
	/*
	* Microsemi Switchtec PCIe Driver
	* Copyright (c) 2017, Microsemi Corporation
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	*/

	#ifndef _SWITCHTEC_H
	#define _SWITCHTEC_H

	#include <linux/pci.h>
	#include <linux/cdev.h>

	#define MICROSEMI_VENDOR_ID 0x11f8
	#define MICROSEMI_NTB_CLASSCODE 0x068000
	#define MICROSEMI_MGMT_CLASSCODE 0x058000

	#define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024
	#define SWITCHTEC_MAX_PFF_CSR 48

	#define SWITCHTEC_EVENT_OCCURRED BIT(0)
	#define SWITCHTEC_EVENT_CLEAR BIT(0)
	#define SWITCHTEC_EVENT_EN_LOG BIT(1)
	#define SWITCHTEC_EVENT_EN_CLI BIT(2)
	#define SWITCHTEC_EVENT_EN_IRQ BIT(3)
	#define SWITCHTEC_EVENT_FATAL BIT(4)

	enum {
	SWITCHTEC_GAS_MRPC_OFFSET = 0x0000,
	SWITCHTEC_GAS_TOP_CFG_OFFSET = 0x1000,
	SWITCHTEC_GAS_SW_EVENT_OFFSET = 0x1800,
	SWITCHTEC_GAS_SYS_INFO_OFFSET = 0x2000,
	SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200,
	SWITCHTEC_GAS_PART_CFG_OFFSET = 0x4000,
	SWITCHTEC_GAS_NTB_OFFSET = 0x10000,
	SWITCHTEC_GAS_PFF_CSR_OFFSET = 0x134000,
	};

	struct mrpc_regs {
	u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
	u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
	u32 cmd;
	u32 status;
	u32 ret_value;
	} __packed;

	enum mrpc_status {
	SWITCHTEC_MRPC_STATUS_INPROGRESS = 1,
	SWITCHTEC_MRPC_STATUS_DONE = 2,
	SWITCHTEC_MRPC_STATUS_ERROR = 0xFF,
	SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100,
	};

	struct sw_event_regs {
	u64 event_report_ctrl;
	u64 reserved1;
	u64 part_event_bitmap;
	u64 reserved2;
	u32 global_summary;
	u32 reserved3[3];
	u32 stack_error_event_hdr;
	u32 stack_error_event_data;
	u32 reserved4[4];
	u32 ppu_error_event_hdr;
	u32 ppu_error_event_data;
	u32 reserved5[4];
	u32 isp_error_event_hdr;
	u32 isp_error_event_data;
	u32 reserved6[4];
	u32 sys_reset_event_hdr;
	u32 reserved7[5];
	u32 fw_exception_hdr;
	u32 reserved8[5];
	u32 fw_nmi_hdr;
	u32 reserved9[5];
	u32 fw_non_fatal_hdr;
	u32 reserved10[5];
	u32 fw_fatal_hdr;
	u32 reserved11[5];
	u32 twi_mrpc_comp_hdr;
	u32 twi_mrpc_comp_data;
	u32 reserved12[4];
	u32 twi_mrpc_comp_async_hdr;
	u32 twi_mrpc_comp_async_data;
	u32 reserved13[4];
	u32 cli_mrpc_comp_hdr;
	u32 cli_mrpc_comp_data;
	u32 reserved14[4];
	u32 cli_mrpc_comp_async_hdr;
	u32 cli_mrpc_comp_async_data;
	u32 reserved15[4];
	u32 gpio_interrupt_hdr;
	u32 gpio_interrupt_data;
	u32 reserved16[4];
	} __packed;

	enum {
	SWITCHTEC_CFG0_RUNNING = 0x04,
	SWITCHTEC_CFG1_RUNNING = 0x05,
	SWITCHTEC_IMG0_RUNNING = 0x03,
	SWITCHTEC_IMG1_RUNNING = 0x07,
	};

	struct sys_info_regs {
	u32 device_id;
	u32 device_version;
	u32 firmware_version;
	u32 reserved1;
	u32 vendor_table_revision;
	u32 table_format_version;
	u32 partition_id;
	u32 cfg_file_fmt_version;
	u16 cfg_running;
	u16 img_running;
	u32 reserved2[57];
	char vendor_id[8];
	char product_id[16];
	char product_revision[4];
	char component_vendor[8];
	u16 component_id;
	u8 component_revision;
	} __packed;

	struct flash_info_regs {
	u32 flash_part_map_upd_idx;

	struct active_partition_info {
	u32 address;
	u32 build_version;
	u32 build_string;
	} active_img;

	struct active_partition_info active_cfg;
	struct active_partition_info inactive_img;
	struct active_partition_info inactive_cfg;

	u32 flash_length;

	struct partition_info {
	u32 address;
	u32 length;
	} cfg0;

	struct partition_info cfg1;
	struct partition_info img0;
	struct partition_info img1;
	struct partition_info nvlog;
	struct partition_info vendor[8];
	};

	enum {
	SWITCHTEC_NTB_REG_INFO_OFFSET = 0x0000,
	SWITCHTEC_NTB_REG_CTRL_OFFSET = 0x4000,
	SWITCHTEC_NTB_REG_DBMSG_OFFSET = 0x64000,
	};

	struct ntb_info_regs {
	u8 partition_count;
	u8 partition_id;
	u16 reserved1;
	u64 ep_map;
	u16 requester_id;
	} __packed;

	struct part_cfg_regs {
	u32 status;
	u32 state;
	u32 port_cnt;
	u32 usp_port_mode;
	u32 usp_pff_inst_id;
	u32 vep_pff_inst_id;
	u32 dsp_pff_inst_id[47];
	u32 reserved1[11];
	u16 vep_vector_number;
	u16 usp_vector_number;
	u32 port_event_bitmap;
	u32 reserved2[3];
	u32 part_event_summary;
	u32 reserved3[3];
	u32 part_reset_hdr;
	u32 part_reset_data[5];
	u32 mrpc_comp_hdr;
	u32 mrpc_comp_data[5];
	u32 mrpc_comp_async_hdr;
	u32 mrpc_comp_async_data[5];
	u32 dyn_binding_hdr;
	u32 dyn_binding_data[5];
	u32 reserved4[159];
	} __packed;

	enum {
	NTB_CTRL_PART_OP_LOCK = 0x1,
	NTB_CTRL_PART_OP_CFG = 0x2,
	NTB_CTRL_PART_OP_RESET = 0x3,

	NTB_CTRL_PART_STATUS_NORMAL = 0x1,
	NTB_CTRL_PART_STATUS_LOCKED = 0x2,
	NTB_CTRL_PART_STATUS_LOCKING = 0x3,
	NTB_CTRL_PART_STATUS_CONFIGURING = 0x4,
	NTB_CTRL_PART_STATUS_RESETTING = 0x5,

	NTB_CTRL_BAR_VALID = 1 << 0,
	NTB_CTRL_BAR_DIR_WIN_EN = 1 << 4,
	NTB_CTRL_BAR_LUT_WIN_EN = 1 << 5,

	NTB_CTRL_REQ_ID_EN = 1 << 0,

	NTB_CTRL_LUT_EN = 1 << 0,

	NTB_PART_CTRL_ID_PROT_DIS = 1 << 0,
	};

	struct ntb_ctrl_regs {
	u32 partition_status;
	u32 partition_op;
	u32 partition_ctrl;
	u32 bar_setup;
	u32 bar_error;
	u16 lut_table_entries;
	u16 lut_table_offset;
	u32 lut_error;
	u16 req_id_table_size;
	u16 req_id_table_offset;
	u32 req_id_error;
	u32 reserved1[7];
	struct {
	u32 ctl;
	u32 win_size;
	u64 xlate_addr;
	} bar_entry[6];
	u32 reserved2[216];
	u32 req_id_table[256];
	u32 reserved3[512];
	u64 lut_entry[512];
	} __packed;

	#define NTB_DBMSG_IMSG_STATUS BIT_ULL(32)
	#define NTB_DBMSG_IMSG_MASK BIT_ULL(40)

	struct ntb_dbmsg_regs {
	u32 reserved1[1024];
	u64 odb;
	u64 odb_mask;
	u64 idb;
	u64 idb_mask;
	u8 idb_vec_map[64];
	u32 msg_map;
	u32 reserved2;
	struct {
	u32 msg;
	u32 status;
	} omsg[4];

	struct {
	u32 msg;
	u8 status;
	u8 mask;
	u8 src;
	u8 reserved;
	} imsg[4];

	u8 reserved3[3928];
	u8 msix_table[1024];
	u8 reserved4[3072];
	u8 pba[24];
	u8 reserved5[4072];
	} __packed;

	enum {
	SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0,
	SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1,
	SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2,
	SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3,
	};

	struct pff_csr_regs {
	u16 vendor_id;
	u16 device_id;
	u32 pci_cfg_header[15];
	u32 pci_cap_region[48];
	u32 pcie_cap_region[448];
	u32 indirect_gas_window[128];
	u32 indirect_gas_window_off;
	u32 reserved[127];
	u32 pff_event_summary;
	u32 reserved2[3];
	u32 aer_in_p2p_hdr;
	u32 aer_in_p2p_data[5];
	u32 aer_in_vep_hdr;
	u32 aer_in_vep_data[5];
	u32 dpc_hdr;
	u32 dpc_data[5];
	u32 cts_hdr;
	u32 cts_data[5];
	u32 reserved3[6];
	u32 hotplug_hdr;
	u32 hotplug_data[5];
	u32 ier_hdr;
	u32 ier_data[5];
	u32 threshold_hdr;
	u32 threshold_data[5];
	u32 power_mgmt_hdr;
	u32 power_mgmt_data[5];
	u32 tlp_throttling_hdr;
	u32 tlp_throttling_data[5];
	u32 force_speed_hdr;
	u32 force_speed_data[5];
	u32 credit_timeout_hdr;
	u32 credit_timeout_data[5];
	u32 link_state_hdr;
	u32 link_state_data[5];
	u32 reserved4[174];
	} __packed;

	struct switchtec_ntb;

	struct switchtec_dev {
	struct pci_dev *pdev;
	struct device dev;
	struct cdev cdev;

	int partition;
	int partition_count;
	int pff_csr_count;
	char pff_local[SWITCHTEC_MAX_PFF_CSR];

	void __iomem *mmio;
	struct mrpc_regs __iomem *mmio_mrpc;
	struct sw_event_regs __iomem *mmio_sw_event;
	struct sys_info_regs __iomem *mmio_sys_info;
	struct flash_info_regs __iomem *mmio_flash_info;
	struct ntb_info_regs __iomem *mmio_ntb;
	struct part_cfg_regs __iomem *mmio_part_cfg;
	struct part_cfg_regs __iomem *mmio_part_cfg_all;
	struct pff_csr_regs __iomem *mmio_pff_csr;

	/*
	* The mrpc mutex must be held when accessing the other
	* mrpc_ fields, alive flag and stuser->state field
	*/
	struct mutex mrpc_mutex;
	struct list_head mrpc_queue;
	int mrpc_busy;
	struct work_struct mrpc_work;
	struct delayed_work mrpc_timeout;
	bool alive;

	wait_queue_head_t event_wq;
	atomic_t event_cnt;

	struct work_struct link_event_work;
	void (link_notifier)(struct switchtec_dev stdev);
	u8 link_event_count[SWITCHTEC_MAX_PFF_CSR];

	struct switchtec_ntb *sndev;
	};

	static inline struct switchtec_dev to_stdev(struct device dev)
	{
	return container_of(dev, struct switchtec_dev, dev);
	}

	extern struct class *switchtec_class;

	#endif