drivers/block/rsxx/rsxx_priv.h - arm/linux - Git at Google

 /*
 * Filename: rsxx_priv.h
 *
 *
 * Authors: Joshua Morris <josh.h.morris@us.ibm.com>
 *	Philip Kelleher <pjk1939@linux.vnet.ibm.com>
 *
 * (C) Copyright 2013 IBM Corporation
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

 #ifndef __RSXX_PRIV_H__
 #define __RSXX_PRIV_H__

 #include <linux/version.h>
 #include <linux/semaphore.h>

 #include <linux/fs.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
 #include <linux/sysfs.h>
 #include <linux/workqueue.h>
 #include <linux/bio.h>
 #include <linux/vmalloc.h>
 #include <linux/timer.h>
 #include <linux/ioctl.h>
 #include <linux/delay.h>

 #include "rsxx.h"
 #include "rsxx_cfg.h"

 struct proc_cmd;

 #define PCI_DEVICE_ID_FS70_FLASH	0x04A9
 #define PCI_DEVICE_ID_FS80_FLASH	0x04AA

 #define RS70_PCI_REV_SUPPORTED	4

 #define DRIVER_NAME "rsxx"
 #define DRIVER_VERSION "4.0.3.2516"

 /* Block size is 4096 */
 #define RSXX_HW_BLK_SHIFT		12
 #define RSXX_HW_BLK_SIZE		(1 << RSXX_HW_BLK_SHIFT)
 #define RSXX_HW_BLK_MASK		(RSXX_HW_BLK_SIZE - 1)

 #define MAX_CREG_DATA8	32
 #define LOG_BUF_SIZE8	128

 #define RSXX_MAX_OUTSTANDING_CMDS	255
 #define RSXX_CS_IDX_MASK		0xff

 #define STATUS_BUFFER_SIZE8     4096
 #define COMMAND_BUFFER_SIZE8    4096

 #define RSXX_MAX_TARGETS	8

 struct dma_tracker_list;

 /* DMA Command/Status Buffer structure */
 struct rsxx_cs_buffer {
 	dma_addr_t	dma_addr;
 	void		*buf;
 	u32		idx;
 };

 struct rsxx_dma_stats {
 	u32 crc_errors;
 	u32 hard_errors;
 	u32 soft_errors;
 	u32 writes_issued;
 	u32 writes_failed;
 	u32 reads_issued;
 	u32 reads_failed;
 	u32 reads_retried;
 	u32 discards_issued;
 	u32 discards_failed;
 	u32 done_rescheduled;
 	u32 issue_rescheduled;
 	u32 dma_sw_err;
 	u32 dma_hw_fault;
 	u32 dma_cancelled;
 	u32 sw_q_depth;		/* Number of DMAs on the SW queue. */
 	atomic_t hw_q_depth;	/* Number of DMAs queued to HW. */
 };

 struct rsxx_dma_ctrl {
 	struct rsxx_cardinfo		*card;
 	int				id;
 	void				__iomem *regmap;
 	struct rsxx_cs_buffer		status;
 	struct rsxx_cs_buffer		cmd;
 	u16				e_cnt;
 	spinlock_t			queue_lock;
 	struct list_head		queue;
 	struct workqueue_struct		*issue_wq;
 	struct work_struct		issue_dma_work;
 	struct workqueue_struct		*done_wq;
 	struct work_struct		dma_done_work;
 	struct timer_list		activity_timer;
 	struct dma_tracker_list		*trackers;
 	struct rsxx_dma_stats		stats;
 	struct mutex			work_lock;
 };

 struct rsxx_cardinfo {
 	struct pci_dev		*dev;
 	unsigned int		halt;
 	unsigned int		eeh_state;

 	void			__iomem *regmap;
 	spinlock_t		irq_lock;
 	unsigned int		isr_mask;
 	unsigned int		ier_mask;

 	struct rsxx_card_cfg	config;
 	int			config_valid;

 	/* Embedded CPU Communication */
 	struct {
 		spinlock_t		lock;
 		bool			active;
 		struct creg_cmd		*active_cmd;
 		struct workqueue_struct	*creg_wq;
 		struct work_struct	done_work;
 		struct list_head	queue;
 		unsigned int		q_depth;
 		/* Cache the creg status to prevent ioreads */
 		struct {
 			u32		stat;
 			u32		failed_cancel_timer;
 			u32		creg_timeout;
 		} creg_stats;
 		struct timer_list	cmd_timer;
 		struct mutex		reset_lock;
 		int			reset;
 	} creg_ctrl;

 	struct {
 		char tmp[MAX_CREG_DATA8];
 		char buf[LOG_BUF_SIZE8]; /* terminated */
 		int buf_len;
 	} log;

 	struct workqueue_struct	*event_wq;
 	struct work_struct	event_work;
 	unsigned int		state;
 	u64			size8;

 	/* Lock the device attach/detach function */
 	struct mutex		dev_lock;

 	/* Block Device Variables */
 	bool			bdev_attached;
 	int			disk_id;
 	int			major;
 	struct request_queue	*queue;
 	struct gendisk		*gendisk;
 	struct {
 		/* Used to convert a byte address to a device address. */
 		u64 lower_mask;
 		u64 upper_shift;
 		u64 upper_mask;
 		u64 target_mask;
 		u64 target_shift;
 	} _stripe;
 	unsigned int		dma_fault;

 	int			scrub_hard;

 	int			n_targets;
 	struct rsxx_dma_ctrl	*ctrl;

 	struct dentry		*debugfs_dir;
 };

 enum rsxx_pci_regmap {
 	HWID		= 0x00,	/* Hardware Identification Register */
 	SCRATCH		= 0x04, /* Scratch/Debug Register */
 	RESET		= 0x08, /* Reset Register */
 	ISR		= 0x10, /* Interrupt Status Register */
 	IER		= 0x14, /* Interrupt Enable Register */
 	IPR		= 0x18, /* Interrupt Poll Register */
 	CB_ADD_LO	= 0x20, /* Command Host Buffer Address [31:0] */
 	CB_ADD_HI	= 0x24, /* Command Host Buffer Address [63:32]*/
 	HW_CMD_IDX	= 0x28, /* Hardware Processed Command Index */
 	SW_CMD_IDX	= 0x2C, /* Software Processed Command Index */
 	SB_ADD_LO	= 0x30, /* Status Host Buffer Address [31:0] */
 	SB_ADD_HI	= 0x34, /* Status Host Buffer Address [63:32] */
 	HW_STATUS_CNT	= 0x38, /* Hardware Status Counter */
 	SW_STATUS_CNT	= 0x3C, /* Deprecated */
 	CREG_CMD	= 0x40, /* CPU Command Register */
 	CREG_ADD	= 0x44, /* CPU Address Register */
 	CREG_CNT	= 0x48, /* CPU Count Register */
 	CREG_STAT	= 0x4C, /* CPU Status Register */
 	CREG_DATA0	= 0x50, /* CPU Data Registers */
 	CREG_DATA1	= 0x54,
 	CREG_DATA2	= 0x58,
 	CREG_DATA3	= 0x5C,
 	CREG_DATA4	= 0x60,
 	CREG_DATA5	= 0x64,
 	CREG_DATA6	= 0x68,
 	CREG_DATA7	= 0x6c,
 	INTR_COAL	= 0x70, /* Interrupt Coalescing Register */
 	HW_ERROR	= 0x74, /* Card Error Register */
 	PCI_DEBUG0	= 0x78, /* PCI Debug Registers */
 	PCI_DEBUG1	= 0x7C,
 	PCI_DEBUG2	= 0x80,
 	PCI_DEBUG3	= 0x84,
 	PCI_DEBUG4	= 0x88,
 	PCI_DEBUG5	= 0x8C,
 	PCI_DEBUG6	= 0x90,
 	PCI_DEBUG7	= 0x94,
 	PCI_POWER_THROTTLE = 0x98,
 	PERF_CTRL	= 0x9c,
 	PERF_TIMER_LO	= 0xa0,
 	PERF_TIMER_HI	= 0xa4,
 	PERF_RD512_LO	= 0xa8,
 	PERF_RD512_HI	= 0xac,
 	PERF_WR512_LO	= 0xb0,
 	PERF_WR512_HI	= 0xb4,
 	PCI_RECONFIG	= 0xb8,
 };

 enum rsxx_intr {
 	CR_INTR_DMA0	= 0x00000001,
 	CR_INTR_CREG	= 0x00000002,
 	CR_INTR_DMA1	= 0x00000004,
 	CR_INTR_EVENT	= 0x00000008,
 	CR_INTR_DMA2	= 0x00000010,
 	CR_INTR_DMA3	= 0x00000020,
 	CR_INTR_DMA4	= 0x00000040,
 	CR_INTR_DMA5	= 0x00000080,
 	CR_INTR_DMA6	= 0x00000100,
 	CR_INTR_DMA7	= 0x00000200,
 	CR_INTR_ALL_C	= 0x0000003f,
 	CR_INTR_ALL_G	= 0x000003ff,
 	CR_INTR_DMA_ALL = 0x000003f5,
 	CR_INTR_ALL	= 0xffffffff,
 };

 static inline int CR_INTR_DMA(int N)
 {
 	static const unsigned int _CR_INTR_DMA[] = {
 		CR_INTR_DMA0, CR_INTR_DMA1, CR_INTR_DMA2, CR_INTR_DMA3,
 		CR_INTR_DMA4, CR_INTR_DMA5, CR_INTR_DMA6, CR_INTR_DMA7
 	};
 	return _CR_INTR_DMA[N];
 }
 enum rsxx_pci_reset {
 	DMA_QUEUE_RESET		= 0x00000001,
 };

 enum rsxx_hw_fifo_flush {
 	RSXX_FLUSH_BUSY		= 0x00000002,
 	RSXX_FLUSH_TIMEOUT	= 0x00000004,
 };

 enum rsxx_pci_revision {
 	RSXX_DISCARD_SUPPORT = 2,
 	RSXX_EEH_SUPPORT     = 3,
 };

 enum rsxx_creg_cmd {
 	CREG_CMD_TAG_MASK	= 0x0000FF00,
 	CREG_OP_WRITE		= 0x000000C0,
 	CREG_OP_READ		= 0x000000E0,
 };

 enum rsxx_creg_addr {
 	CREG_ADD_CARD_CMD		= 0x80001000,
 	CREG_ADD_CARD_STATE		= 0x80001004,
 	CREG_ADD_CARD_SIZE		= 0x8000100c,
 	CREG_ADD_CAPABILITIES		= 0x80001050,
 	CREG_ADD_LOG			= 0x80002000,
 	CREG_ADD_NUM_TARGETS		= 0x80003000,
 	CREG_ADD_CRAM			= 0xA0000000,
 	CREG_ADD_CONFIG			= 0xB0000000,
 };

 enum rsxx_creg_card_cmd {
 	CARD_CMD_STARTUP		= 1,
 	CARD_CMD_SHUTDOWN		= 2,
 	CARD_CMD_LOW_LEVEL_FORMAT	= 3,
 	CARD_CMD_FPGA_RECONFIG_BR	= 4,
 	CARD_CMD_FPGA_RECONFIG_MAIN	= 5,
 	CARD_CMD_BACKUP			= 6,
 	CARD_CMD_RESET			= 7,
 	CARD_CMD_deprecated		= 8,
 	CARD_CMD_UNINITIALIZE		= 9,
 	CARD_CMD_DSTROY_EMERGENCY	= 10,
 	CARD_CMD_DSTROY_NORMAL		= 11,
 	CARD_CMD_DSTROY_EXTENDED	= 12,
 	CARD_CMD_DSTROY_ABORT		= 13,
 };

 enum rsxx_card_state {
 	CARD_STATE_SHUTDOWN		= 0x00000001,
 	CARD_STATE_STARTING		= 0x00000002,
 	CARD_STATE_FORMATTING		= 0x00000004,
 	CARD_STATE_UNINITIALIZED	= 0x00000008,
 	CARD_STATE_GOOD			= 0x00000010,
 	CARD_STATE_SHUTTING_DOWN	= 0x00000020,
 	CARD_STATE_FAULT		= 0x00000040,
 	CARD_STATE_RD_ONLY_FAULT	= 0x00000080,
 	CARD_STATE_DSTROYING		= 0x00000100,
 };

 enum rsxx_led {
 	LED_DEFAULT	= 0x0,
 	LED_IDENTIFY	= 0x1,
 	LED_SOAK	= 0x2,
 };

 enum rsxx_creg_flash_lock {
 	CREG_FLASH_LOCK		= 1,
 	CREG_FLASH_UNLOCK	= 2,
 };

 enum rsxx_card_capabilities {
 	CARD_CAP_SUBPAGE_WRITES = 0x00000080,
 };

 enum rsxx_creg_stat {
 	CREG_STAT_STATUS_MASK	= 0x00000003,
 	CREG_STAT_SUCCESS	= 0x1,
 	CREG_STAT_ERROR		= 0x2,
 	CREG_STAT_CHAR_PENDING	= 0x00000004, /* Character I/O pending bit */
 	CREG_STAT_LOG_PENDING	= 0x00000008, /* HW log message pending bit */
 	CREG_STAT_TAG_MASK	= 0x0000ff00,
 };

 enum rsxx_dma_finish {
 	FREE_DMA	= 0x0,
 	COMPLETE_DMA	= 0x1,
 };

 static inline unsigned int CREG_DATA(int N)
 {
 	return CREG_DATA0 + (N << 2);
 }

 /*----------------- Convenient Log Wrappers -------------------*/
 #define CARD_TO_DEV(__CARD)	(&(__CARD)->dev->dev)

 /***** config.c *****/
 int rsxx_load_config(struct rsxx_cardinfo *card);

 /***** core.c *****/
 void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr);
 void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr);
 void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card,
 				 unsigned int intr);
 void rsxx_disable_ier_and_isr(struct rsxx_cardinfo *card,
 				  unsigned int intr);

 /***** dev.c *****/
 int rsxx_attach_dev(struct rsxx_cardinfo *card);
 void rsxx_detach_dev(struct rsxx_cardinfo *card);
 int rsxx_setup_dev(struct rsxx_cardinfo *card);
 void rsxx_destroy_dev(struct rsxx_cardinfo *card);
 int rsxx_dev_init(void);
 void rsxx_dev_cleanup(void);

 /***** dma.c ****/
 typedef void (*rsxx_dma_cb)(struct rsxx_cardinfo *card,
 				void *cb_data,
 				unsigned int status);
 int rsxx_dma_setup(struct rsxx_cardinfo *card);
 void rsxx_dma_destroy(struct rsxx_cardinfo *card);
 int rsxx_dma_init(void);
 int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl,
 				struct list_head *q,
 				unsigned int done);
 int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl);
 void rsxx_dma_cleanup(void);
 void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
 int rsxx_dma_configure(struct rsxx_cardinfo *card);
 blk_status_t rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 			   struct bio *bio,
 			   atomic_t *n_dmas,
 			   rsxx_dma_cb cb,
 			   void *cb_data);
 int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl);
 int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card);
 int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card);

 /***** cregs.c *****/
 int rsxx_creg_write(struct rsxx_cardinfo *card, u32 addr,
 			unsigned int size8,
 			void *data,
 			int byte_stream);
 int rsxx_creg_read(struct rsxx_cardinfo *card,
 		       u32 addr,
 		       unsigned int size8,
 		       void *data,
 		       int byte_stream);
 int rsxx_read_hw_log(struct rsxx_cardinfo *card);
 int rsxx_get_card_state(struct rsxx_cardinfo *card,
 			    unsigned int *state);
 int rsxx_get_card_size8(struct rsxx_cardinfo *card, u64 *size8);
 int rsxx_get_num_targets(struct rsxx_cardinfo *card,
 			     unsigned int *n_targets);
 int rsxx_get_card_capabilities(struct rsxx_cardinfo *card,
 				   u32 *capabilities);
 int rsxx_issue_card_cmd(struct rsxx_cardinfo *card, u32 cmd);
 int rsxx_creg_setup(struct rsxx_cardinfo *card);
 void rsxx_creg_destroy(struct rsxx_cardinfo *card);
 int rsxx_creg_init(void);
 void rsxx_creg_cleanup(void);
 int rsxx_reg_access(struct rsxx_cardinfo *card,
 			struct rsxx_reg_access __user *ucmd,
 			int read);
 void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card);
 void rsxx_kick_creg_queue(struct rsxx_cardinfo *card);


 #endif /* __DRIVERS_BLOCK_RSXX_H__ */
	/*
	* Filename: rsxx_priv.h
	*
	*
	* Authors: Joshua Morris <josh.h.morris@us.ibm.com>
	* Philip Kelleher <pjk1939@linux.vnet.ibm.com>
	*
	* (C) Copyright 2013 IBM Corporation
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; either version 2 of the
	* License, or (at your option) any later version.
	*
	* This program is distributed in the hope that 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software Foundation,
	* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/

	#ifndef __RSXX_PRIV_H__
	#define __RSXX_PRIV_H__

	#include <linux/version.h>
	#include <linux/semaphore.h>

	#include <linux/fs.h>
	#include <linux/interrupt.h>
	#include <linux/mutex.h>
	#include <linux/pci.h>
	#include <linux/spinlock.h>
	#include <linux/sysfs.h>
	#include <linux/workqueue.h>
	#include <linux/bio.h>
	#include <linux/vmalloc.h>
	#include <linux/timer.h>
	#include <linux/ioctl.h>
	#include <linux/delay.h>

	#include "rsxx.h"
	#include "rsxx_cfg.h"

	struct proc_cmd;

	#define PCI_DEVICE_ID_FS70_FLASH 0x04A9
	#define PCI_DEVICE_ID_FS80_FLASH 0x04AA

	#define RS70_PCI_REV_SUPPORTED 4

	#define DRIVER_NAME "rsxx"
	#define DRIVER_VERSION "4.0.3.2516"

	/* Block size is 4096 */
	#define RSXX_HW_BLK_SHIFT 12
	#define RSXX_HW_BLK_SIZE (1 << RSXX_HW_BLK_SHIFT)
	#define RSXX_HW_BLK_MASK (RSXX_HW_BLK_SIZE - 1)

	#define MAX_CREG_DATA8 32
	#define LOG_BUF_SIZE8 128

	#define RSXX_MAX_OUTSTANDING_CMDS 255
	#define RSXX_CS_IDX_MASK 0xff

	#define STATUS_BUFFER_SIZE8 4096
	#define COMMAND_BUFFER_SIZE8 4096

	#define RSXX_MAX_TARGETS 8

	struct dma_tracker_list;

	/* DMA Command/Status Buffer structure */
	struct rsxx_cs_buffer {
	dma_addr_t dma_addr;
	void *buf;
	u32 idx;
	};

	struct rsxx_dma_stats {
	u32 crc_errors;
	u32 hard_errors;
	u32 soft_errors;
	u32 writes_issued;
	u32 writes_failed;
	u32 reads_issued;
	u32 reads_failed;
	u32 reads_retried;
	u32 discards_issued;
	u32 discards_failed;
	u32 done_rescheduled;
	u32 issue_rescheduled;
	u32 dma_sw_err;
	u32 dma_hw_fault;
	u32 dma_cancelled;
	u32 sw_q_depth; /* Number of DMAs on the SW queue. */
	atomic_t hw_q_depth; /* Number of DMAs queued to HW. */
	};

	struct rsxx_dma_ctrl {
	struct rsxx_cardinfo *card;
	int id;
	void __iomem *regmap;
	struct rsxx_cs_buffer status;
	struct rsxx_cs_buffer cmd;
	u16 e_cnt;
	spinlock_t queue_lock;
	struct list_head queue;
	struct workqueue_struct *issue_wq;
	struct work_struct issue_dma_work;
	struct workqueue_struct *done_wq;
	struct work_struct dma_done_work;
	struct timer_list activity_timer;
	struct dma_tracker_list *trackers;
	struct rsxx_dma_stats stats;
	struct mutex work_lock;
	};

	struct rsxx_cardinfo {
	struct pci_dev *dev;
	unsigned int halt;
	unsigned int eeh_state;

	void __iomem *regmap;
	spinlock_t irq_lock;
	unsigned int isr_mask;
	unsigned int ier_mask;

	struct rsxx_card_cfg config;
	int config_valid;

	/* Embedded CPU Communication */
	struct {
	spinlock_t lock;
	bool active;
	struct creg_cmd *active_cmd;
	struct workqueue_struct *creg_wq;
	struct work_struct done_work;
	struct list_head queue;
	unsigned int q_depth;
	/* Cache the creg status to prevent ioreads */
	struct {
	u32 stat;
	u32 failed_cancel_timer;
	u32 creg_timeout;
	} creg_stats;
	struct timer_list cmd_timer;
	struct mutex reset_lock;
	int reset;
	} creg_ctrl;

	struct {
	char tmp[MAX_CREG_DATA8];
	char buf[LOG_BUF_SIZE8]; /* terminated */
	int buf_len;
	} log;

	struct workqueue_struct *event_wq;
	struct work_struct event_work;
	unsigned int state;
	u64 size8;

	/* Lock the device attach/detach function */
	struct mutex dev_lock;

	/* Block Device Variables */
	bool bdev_attached;
	int disk_id;
	int major;
	struct request_queue *queue;
	struct gendisk *gendisk;
	struct {
	/* Used to convert a byte address to a device address. */
	u64 lower_mask;
	u64 upper_shift;
	u64 upper_mask;
	u64 target_mask;
	u64 target_shift;
	} _stripe;
	unsigned int dma_fault;

	int scrub_hard;

	int n_targets;
	struct rsxx_dma_ctrl *ctrl;

	struct dentry *debugfs_dir;
	};

	enum rsxx_pci_regmap {
	HWID = 0x00, /* Hardware Identification Register */
	SCRATCH = 0x04, /* Scratch/Debug Register */
	RESET = 0x08, /* Reset Register */
	ISR = 0x10, /* Interrupt Status Register */
	IER = 0x14, /* Interrupt Enable Register */
	IPR = 0x18, /* Interrupt Poll Register */
	CB_ADD_LO = 0x20, /* Command Host Buffer Address [31:0] */
	CB_ADD_HI = 0x24, /* Command Host Buffer Address [63:32]*/
	HW_CMD_IDX = 0x28, /* Hardware Processed Command Index */
	SW_CMD_IDX = 0x2C, /* Software Processed Command Index */
	SB_ADD_LO = 0x30, /* Status Host Buffer Address [31:0] */
	SB_ADD_HI = 0x34, /* Status Host Buffer Address [63:32] */
	HW_STATUS_CNT = 0x38, /* Hardware Status Counter */
	SW_STATUS_CNT = 0x3C, /* Deprecated */
	CREG_CMD = 0x40, /* CPU Command Register */
	CREG_ADD = 0x44, /* CPU Address Register */
	CREG_CNT = 0x48, /* CPU Count Register */
	CREG_STAT = 0x4C, /* CPU Status Register */
	CREG_DATA0 = 0x50, /* CPU Data Registers */
	CREG_DATA1 = 0x54,
	CREG_DATA2 = 0x58,
	CREG_DATA3 = 0x5C,
	CREG_DATA4 = 0x60,
	CREG_DATA5 = 0x64,
	CREG_DATA6 = 0x68,
	CREG_DATA7 = 0x6c,
	INTR_COAL = 0x70, /* Interrupt Coalescing Register */
	HW_ERROR = 0x74, /* Card Error Register */
	PCI_DEBUG0 = 0x78, /* PCI Debug Registers */
	PCI_DEBUG1 = 0x7C,
	PCI_DEBUG2 = 0x80,
	PCI_DEBUG3 = 0x84,
	PCI_DEBUG4 = 0x88,
	PCI_DEBUG5 = 0x8C,
	PCI_DEBUG6 = 0x90,
	PCI_DEBUG7 = 0x94,
	PCI_POWER_THROTTLE = 0x98,
	PERF_CTRL = 0x9c,
	PERF_TIMER_LO = 0xa0,
	PERF_TIMER_HI = 0xa4,
	PERF_RD512_LO = 0xa8,
	PERF_RD512_HI = 0xac,
	PERF_WR512_LO = 0xb0,
	PERF_WR512_HI = 0xb4,
	PCI_RECONFIG = 0xb8,
	};

	enum rsxx_intr {
	CR_INTR_DMA0 = 0x00000001,
	CR_INTR_CREG = 0x00000002,
	CR_INTR_DMA1 = 0x00000004,
	CR_INTR_EVENT = 0x00000008,
	CR_INTR_DMA2 = 0x00000010,
	CR_INTR_DMA3 = 0x00000020,
	CR_INTR_DMA4 = 0x00000040,
	CR_INTR_DMA5 = 0x00000080,
	CR_INTR_DMA6 = 0x00000100,
	CR_INTR_DMA7 = 0x00000200,
	CR_INTR_ALL_C = 0x0000003f,
	CR_INTR_ALL_G = 0x000003ff,
	CR_INTR_DMA_ALL = 0x000003f5,
	CR_INTR_ALL = 0xffffffff,
	};

	static inline int CR_INTR_DMA(int N)
	{
	static const unsigned int _CR_INTR_DMA[] = {
	CR_INTR_DMA0, CR_INTR_DMA1, CR_INTR_DMA2, CR_INTR_DMA3,
	CR_INTR_DMA4, CR_INTR_DMA5, CR_INTR_DMA6, CR_INTR_DMA7
	};
	return _CR_INTR_DMA[N];
	}
	enum rsxx_pci_reset {
	DMA_QUEUE_RESET = 0x00000001,
	};

	enum rsxx_hw_fifo_flush {
	RSXX_FLUSH_BUSY = 0x00000002,
	RSXX_FLUSH_TIMEOUT = 0x00000004,
	};

	enum rsxx_pci_revision {
	RSXX_DISCARD_SUPPORT = 2,
	RSXX_EEH_SUPPORT = 3,
	};

	enum rsxx_creg_cmd {
	CREG_CMD_TAG_MASK = 0x0000FF00,
	CREG_OP_WRITE = 0x000000C0,
	CREG_OP_READ = 0x000000E0,
	};

	enum rsxx_creg_addr {
	CREG_ADD_CARD_CMD = 0x80001000,
	CREG_ADD_CARD_STATE = 0x80001004,
	CREG_ADD_CARD_SIZE = 0x8000100c,
	CREG_ADD_CAPABILITIES = 0x80001050,
	CREG_ADD_LOG = 0x80002000,
	CREG_ADD_NUM_TARGETS = 0x80003000,
	CREG_ADD_CRAM = 0xA0000000,
	CREG_ADD_CONFIG = 0xB0000000,
	};

	enum rsxx_creg_card_cmd {
	CARD_CMD_STARTUP = 1,
	CARD_CMD_SHUTDOWN = 2,
	CARD_CMD_LOW_LEVEL_FORMAT = 3,
	CARD_CMD_FPGA_RECONFIG_BR = 4,
	CARD_CMD_FPGA_RECONFIG_MAIN = 5,
	CARD_CMD_BACKUP = 6,
	CARD_CMD_RESET = 7,
	CARD_CMD_deprecated = 8,
	CARD_CMD_UNINITIALIZE = 9,
	CARD_CMD_DSTROY_EMERGENCY = 10,
	CARD_CMD_DSTROY_NORMAL = 11,
	CARD_CMD_DSTROY_EXTENDED = 12,
	CARD_CMD_DSTROY_ABORT = 13,
	};

	enum rsxx_card_state {
	CARD_STATE_SHUTDOWN = 0x00000001,
	CARD_STATE_STARTING = 0x00000002,
	CARD_STATE_FORMATTING = 0x00000004,
	CARD_STATE_UNINITIALIZED = 0x00000008,
	CARD_STATE_GOOD = 0x00000010,
	CARD_STATE_SHUTTING_DOWN = 0x00000020,
	CARD_STATE_FAULT = 0x00000040,
	CARD_STATE_RD_ONLY_FAULT = 0x00000080,
	CARD_STATE_DSTROYING = 0x00000100,
	};

	enum rsxx_led {
	LED_DEFAULT = 0x0,
	LED_IDENTIFY = 0x1,
	LED_SOAK = 0x2,
	};

	enum rsxx_creg_flash_lock {
	CREG_FLASH_LOCK = 1,
	CREG_FLASH_UNLOCK = 2,
	};

	enum rsxx_card_capabilities {
	CARD_CAP_SUBPAGE_WRITES = 0x00000080,
	};

	enum rsxx_creg_stat {
	CREG_STAT_STATUS_MASK = 0x00000003,
	CREG_STAT_SUCCESS = 0x1,
	CREG_STAT_ERROR = 0x2,
	CREG_STAT_CHAR_PENDING = 0x00000004, /* Character I/O pending bit */
	CREG_STAT_LOG_PENDING = 0x00000008, /* HW log message pending bit */
	CREG_STAT_TAG_MASK = 0x0000ff00,
	};

	enum rsxx_dma_finish {
	FREE_DMA = 0x0,
	COMPLETE_DMA = 0x1,
	};

	static inline unsigned int CREG_DATA(int N)
	{
	return CREG_DATA0 + (N << 2);
	}

	/----------------- Convenient Log Wrappers -------------------/
	#define CARD_TO_DEV(__CARD) (&(__CARD)->dev->dev)

	/*** config.c ***/
	int rsxx_load_config(struct rsxx_cardinfo *card);

	/*** core.c ***/
	void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr);
	void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr);
	void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card,
	unsigned int intr);
	void rsxx_disable_ier_and_isr(struct rsxx_cardinfo *card,
	unsigned int intr);

	/*** dev.c ***/
	int rsxx_attach_dev(struct rsxx_cardinfo *card);
	void rsxx_detach_dev(struct rsxx_cardinfo *card);
	int rsxx_setup_dev(struct rsxx_cardinfo *card);
	void rsxx_destroy_dev(struct rsxx_cardinfo *card);
	int rsxx_dev_init(void);
	void rsxx_dev_cleanup(void);

	/*** dma.c **/
	typedef void (rsxx_dma_cb)(struct rsxx_cardinfo card,
	void *cb_data,
	unsigned int status);
	int rsxx_dma_setup(struct rsxx_cardinfo *card);
	void rsxx_dma_destroy(struct rsxx_cardinfo *card);
	int rsxx_dma_init(void);
	int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl,
	struct list_head *q,
	unsigned int done);
	int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl);
	void rsxx_dma_cleanup(void);
	void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
	int rsxx_dma_configure(struct rsxx_cardinfo *card);
	blk_status_t rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
	struct bio *bio,
	atomic_t *n_dmas,
	rsxx_dma_cb cb,
	void *cb_data);
	int rsxx_hw_buffers_init(struct pci_dev dev, struct rsxx_dma_ctrl ctrl);
	int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card);
	int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card);

	/*** cregs.c ***/
	int rsxx_creg_write(struct rsxx_cardinfo *card, u32 addr,
	unsigned int size8,
	void *data,
	int byte_stream);
	int rsxx_creg_read(struct rsxx_cardinfo *card,
	u32 addr,
	unsigned int size8,
	void *data,
	int byte_stream);
	int rsxx_read_hw_log(struct rsxx_cardinfo *card);
	int rsxx_get_card_state(struct rsxx_cardinfo *card,
	unsigned int *state);
	int rsxx_get_card_size8(struct rsxx_cardinfo card, u64 size8);
	int rsxx_get_num_targets(struct rsxx_cardinfo *card,
	unsigned int *n_targets);
	int rsxx_get_card_capabilities(struct rsxx_cardinfo *card,
	u32 *capabilities);
	int rsxx_issue_card_cmd(struct rsxx_cardinfo *card, u32 cmd);
	int rsxx_creg_setup(struct rsxx_cardinfo *card);
	void rsxx_creg_destroy(struct rsxx_cardinfo *card);
	int rsxx_creg_init(void);
	void rsxx_creg_cleanup(void);
	int rsxx_reg_access(struct rsxx_cardinfo *card,
	struct rsxx_reg_access __user *ucmd,
	int read);
	void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card);
	void rsxx_kick_creg_queue(struct rsxx_cardinfo *card);



	#endif /* __DRIVERS_BLOCK_RSXX_H__ */