diff options
Diffstat (limited to 'drivers/block/rsxx/rsxx_priv.h')
-rw-r--r-- | drivers/block/rsxx/rsxx_priv.h | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h deleted file mode 100644 index 26c320c0d924..000000000000 --- a/drivers/block/rsxx/rsxx_priv.h +++ /dev/null @@ -1,418 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -* 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 -*/ - -#ifndef __RSXX_PRIV_H__ -#define __RSXX_PRIV_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 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__ */ |