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/*
* Copyright (c) 2004-07 Applied Micro Circuits Corporation.
* Copyright (c) 2004-05 Vinod Kashyap
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/dev/twa/tw_cl_share.h 212008 2010-08-30 19:15:04Z delphij $
*/
/*
* AMCC'S 3ware driver for 9000 series storage controllers.
*
* Author: Vinod Kashyap
* Modifications by: Adam Radford
* Modifications by: Manjunath Ranganathaiah
*/
#ifndef TW_CL_SHARE_H
#define TW_CL_SHARE_H
/*
* Macros, structures and functions shared between OSL and CL,
* and defined by CL.
*/
#define TW_CL_NULL ((TW_VOID *)0)
#define TW_CL_TRUE 1
#define TW_CL_FALSE 0
#define TW_CL_VENDOR_ID 0x13C1 /* 3ware vendor id */
#define TW_CL_DEVICE_ID_9K 0x1002 /* 9000 PCI series device id */
#define TW_CL_DEVICE_ID_9K_X 0x1003 /* 9000 PCI-X series device id */
#define TW_CL_DEVICE_ID_9K_E 0x1004 /* 9000 PCIe series device id */
#define TW_CL_DEVICE_ID_9K_SA 0x1005 /* 9000 PCIe SAS series device id */
#define TW_CL_BAR_TYPE_IO 1 /* I/O base address */
#define TW_CL_BAR_TYPE_MEM 2 /* memory base address */
#define TW_CL_BAR_TYPE_SBUF 3 /* SBUF base address */
#ifdef TW_OSL_ENCLOSURE_SUPPORT
#define TW_CL_MAX_NUM_UNITS 65 /* max # of units we support
-- enclosure target id is 64 */
#else /* TW_OSL_ENCLOSURE_SUPPORT */
#define TW_CL_MAX_NUM_UNITS 32 /* max # of units we support */
#endif /* TW_OSL_ENCLOSURE_SUPPORT */
#define TW_CL_MAX_NUM_LUNS 16 /* max # of LUN's we support */
#define TW_CL_MAX_IO_SIZE 0x20000 /* 128K */
/*
* Though we can support 256 simultaneous requests, we advertise as capable
* of supporting only 255, since we want to keep one CL internal request
* context packet always available for internal requests.
*/
#define TW_CL_MAX_SIMULTANEOUS_REQUESTS 256 /* max simult reqs supported */
#define TW_CL_MAX_32BIT_SG_ELEMENTS 109 /* max 32-bit sg elements */
#define TW_CL_MAX_64BIT_SG_ELEMENTS 72 /* max 64-bit sg elements */
/* Possible values of ctlr->flags */
#define TW_CL_64BIT_ADDRESSES (1<<0) /* 64 bit cmdpkt & SG addresses */
#define TW_CL_64BIT_SG_LENGTH (1<<1) /* 64 bit SG length */
#define TW_CL_START_CTLR_ONLY (1<<2) /* Start ctlr only */
#define TW_CL_STOP_CTLR_ONLY (1<<3) /* Stop ctlr only */
#define TW_CL_DEFERRED_INTR_USED (1<<5) /* OS Layer uses deferred intr */
/* Possible error values from the Common Layer. */
#define TW_CL_ERR_REQ_SUCCESS 0
#define TW_CL_ERR_REQ_GENERAL_FAILURE (1<<0)
#define TW_CL_ERR_REQ_INVALID_TARGET (1<<1)
#define TW_CL_ERR_REQ_INVALID_LUN (1<<2)
#define TW_CL_ERR_REQ_SCSI_ERROR (1<<3)
#define TW_CL_ERR_REQ_AUTO_SENSE_VALID (1<<4)
#define TW_CL_ERR_REQ_BUS_RESET (1<<5)
#define TW_CL_ERR_REQ_UNABLE_TO_SUBMIT_COMMAND (1<<6)
/* Possible values of req_pkt->flags */
#define TW_CL_REQ_RETRY_ON_BUSY (1<<0)
#define TW_CL_REQ_CALLBACK_FOR_SGLIST (1<<1)
#define TW_CL_MESSAGE_SOURCE_CONTROLLER_ERROR 3
#define TW_CL_MESSAGE_SOURCE_CONTROLLER_EVENT 4
#define TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR 21
#define TW_CL_MESSAGE_SOURCE_COMMON_LAYER_EVENT 22
#define TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER 5
#define TW_CL_MESSAGE_SOURCE_FREEBSD_OS 8
#define TW_CL_MESSAGE_SOURCE_WINDOWS_DRIVER 7
#define TW_CL_MESSAGE_SOURCE_WINDOWS_OS 10
#define TW_CL_SEVERITY_ERROR 0x1
#define TW_CL_SEVERITY_WARNING 0x2
#define TW_CL_SEVERITY_INFO 0x3
#define TW_CL_SEVERITY_DEBUG 0x4
#define TW_CL_SEVERITY_ERROR_STRING "ERROR"
#define TW_CL_SEVERITY_WARNING_STRING "WARNING"
#define TW_CL_SEVERITY_INFO_STRING "INFO"
#define TW_CL_SEVERITY_DEBUG_STRING "DEBUG"
/*
* Structure, a pointer to which is used as the controller handle in
* communications between the OS Layer and the Common Layer.
*/
struct tw_cl_ctlr_handle {
TW_VOID *osl_ctlr_ctxt; /* OSL's ctlr context */
TW_VOID *cl_ctlr_ctxt; /* CL's ctlr context */
};
/*
* Structure, a pointer to which is used as the request handle in
* communications between the OS Layer and the Common Layer.
*/
struct tw_cl_req_handle {
TW_VOID *osl_req_ctxt; /* OSL's request context */
TW_VOID *cl_req_ctxt; /* CL's request context */
TW_UINT8 is_io; /* Only freeze/release simq for IOs */
};
/* Structure used to describe SCSI requests to CL. */
struct tw_cl_scsi_req_packet {
TW_UINT32 unit; /* unit # to send cmd to */
TW_UINT32 lun; /* LUN to send cmd to */
TW_UINT8 *cdb; /* ptr to SCSI cdb */
TW_UINT32 cdb_len; /* # of valid cdb bytes */
TW_UINT32 sense_len; /* # of bytes of valid sense info */
TW_UINT8 *sense_data; /* ptr to sense data, if any */
TW_UINT32 scsi_status; /* SCSI status returned by fw */
TW_UINT32 sgl_entries; /* # of SG descriptors */
TW_UINT8 *sg_list; /* ptr to SG list */
};
/* Structure used to describe pass through command packets to CL. */
struct tw_cl_passthru_req_packet {
TW_UINT8 *cmd_pkt; /* ptr to passthru cmd pkt */
TW_UINT32 cmd_pkt_length; /* size of cmd pkt */
TW_UINT32 sgl_entries; /* # of SG descriptors */
TW_UINT8 *sg_list; /* ptr to SG list */
};
/* Request packet submitted to the Common Layer, by the OS Layer. */
struct tw_cl_req_packet {
TW_UINT32 cmd; /* Common Layer cmd */
TW_UINT32 flags; /* flags describing request */
TW_UINT32 status; /* Common Layer returned status */
TW_VOID (*tw_osl_callback)(struct tw_cl_req_handle *req_handle);
/* OSL routine to be called by CL on req completion */
TW_VOID (*tw_osl_sgl_callback)(
struct tw_cl_req_handle *req_handle, TW_VOID *sg_list,
TW_UINT32 *num_sgl_entries);
/* OSL callback to get SG list. */
union {
struct tw_cl_scsi_req_packet scsi_req; /* SCSI req */
struct tw_cl_passthru_req_packet pt_req;/*Passthru req*/
} gen_req_pkt;
};
#pragma pack(1)
/*
* Packet that describes an AEN/error generated by the controller,
* Common Layer, or even the OS Layer.
*/
struct tw_cl_event_packet {
TW_UINT32 sequence_id;
TW_UINT32 time_stamp_sec;
TW_UINT16 aen_code;
TW_UINT8 severity;
TW_UINT8 retrieved;
TW_UINT8 repeat_count;
TW_UINT8 parameter_len;
TW_UINT8 parameter_data[98];
TW_UINT32 event_src;
TW_UINT8 severity_str[20];
};
#pragma pack()
/* Structure to link 2 adjacent elements in a list. */
struct tw_cl_link {
struct tw_cl_link *next;
struct tw_cl_link *prev;
};
#pragma pack(1)
/* Scatter/Gather list entry with 32 bit addresses. */
struct tw_cl_sg_desc32 {
TW_UINT32 address;
TW_UINT32 length;
};
/* Scatter/Gather list entry with 64 bit addresses. */
struct tw_cl_sg_desc64 {
TW_UINT64 address;
TW_UINT32 length;
};
#pragma pack()
/* Byte swap functions. Valid only if running on big endian platforms. */
#ifdef TW_OSL_BIG_ENDIAN
#define TW_CL_SWAP16_WITH_CAST(x) \
((x << 8) | (x >> 8))
#define TW_CL_SWAP32_WITH_CAST(x) \
((x << 24) | ((x << 8) & (0xFF0000)) | \
((x >> 8) & (0xFF00)) | (x >> 24))
#define TW_CL_SWAP64_WITH_CAST(x) \
((((TW_UINT64)(TW_CL_SWAP32(((TW_UINT32 *)(&(x)))[1]))) << 32) |\
((TW_UINT32)(TW_CL_SWAP32(((TW_UINT32 *)(&(x)))[0]))))
#else /* TW_OSL_BIG_ENDIAN */
#define TW_CL_SWAP16_WITH_CAST(x) x
#define TW_CL_SWAP32_WITH_CAST(x) x
#define TW_CL_SWAP64_WITH_CAST(x) x
#endif /* TW_OSL_BIG_ENDIAN */
#define TW_CL_SWAP16(x) TW_CL_SWAP16_WITH_CAST((TW_UINT16)(x))
#define TW_CL_SWAP32(x) TW_CL_SWAP32_WITH_CAST((TW_UINT32)(x))
#define TW_CL_SWAP64(x) TW_CL_SWAP64_WITH_CAST((TW_UINT64)(x))
/* Queue manipulation functions. */
/* Initialize a queue. */
#define TW_CL_Q_INIT(head) do { \
(head)->prev = (head)->next = head; \
} while (0)
/* Insert an item at the head of the queue. */
#define TW_CL_Q_INSERT_HEAD(head, item) do { \
(item)->next = (head)->next; \
(item)->prev = head; \
(head)->next->prev = item; \
(head)->next = item; \
} while (0)
/* Insert an item at the tail of the queue. */
#define TW_CL_Q_INSERT_TAIL(head, item) do { \
(item)->next = head; \
(item)->prev = (head)->prev; \
(head)->prev->next = item; \
(head)->prev = item; \
} while (0)
/* Remove an item from the head of the queue. */
#define TW_CL_Q_REMOVE_ITEM(head, item) do { \
(item)->prev->next = (item)->next; \
(item)->next->prev = (item)->prev; \
} while (0)
/* Retrieve the item at the head of the queue. */
#define TW_CL_Q_FIRST_ITEM(head) \
(((head)->next != head) ? ((head)->next) : TW_CL_NULL)
/* Retrieve the item at the tail of the queue. */
#define TW_CL_Q_LAST_ITEM(head) \
(((head)->prev != head) ? ((head)->prev) : TW_CL_NULL)
/* Retrieve the item next to a given item in the queue. */
#define TW_CL_Q_NEXT_ITEM(head, item) \
(((item)->next != head) ? ((item)->next) : TW_CL_NULL)
/* Retrieve the item previous to a given item in the queue. */
#define TW_CL_Q_PREV_ITEM(head, item) \
(((item)->prev != head) ? ((item)->prev) : TW_CL_NULL)
/* Determine the offset of a field from the head of the structure it is in. */
#define TW_CL_STRUCT_OFFSET(struct_type, field) \
(TW_INT8 *)(&((struct_type *)0)->field)
/*
* Determine the address of the head of a structure, given the address of a
* field within it.
*/
#define TW_CL_STRUCT_HEAD(addr, struct_type, field) \
(struct_type *)((TW_INT8 *)addr - \
TW_CL_STRUCT_OFFSET(struct_type, field))
#ifndef TW_BUILDING_API
#include "tw_osl_inline.h"
/*
* The following are extern declarations of OS Layer defined functions called
* by the Common Layer. If any function has been defined as a macro in
* tw_osl_share.h, we will not make the extern declaration here.
*/
#ifndef tw_osl_breakpoint
/* Allows setting breakpoints in the CL code for debugging purposes. */
extern TW_VOID tw_osl_breakpoint(TW_VOID);
#endif
#ifndef tw_osl_timeout
/* Start OS timeout() routine after controller reset sequence */
extern TW_VOID tw_osl_timeout(struct tw_cl_req_handle *req_handle);
#endif
#ifndef tw_osl_untimeout
/* Stop OS timeout() routine during controller reset sequence */
extern TW_VOID tw_osl_untimeout(struct tw_cl_req_handle *req_handle);
#endif
#ifndef tw_osl_cur_func
/* Text name of current function. */
extern TW_INT8 *tw_osl_cur_func(TW_VOID);
#endif
#ifdef TW_OSL_DEBUG
#ifndef tw_osl_dbg_printf
/* Print to syslog/event log/debug console, as applicable. */
extern TW_INT32 tw_osl_dbg_printf(struct tw_cl_ctlr_handle *ctlr_handle,
const TW_INT8 *fmt, ...);
#endif
#endif /* TW_OSL_DEBUG */
#ifndef tw_osl_delay
/* Cause a delay of usecs micro-seconds. */
extern TW_VOID tw_osl_delay(TW_INT32 usecs);
#endif
#ifndef tw_osl_destroy_lock
/* Create/initialize a lock for CL's use. */
extern TW_VOID tw_osl_destroy_lock(struct tw_cl_ctlr_handle *ctlr_handle,
TW_LOCK_HANDLE *lock);
#endif
#ifndef tw_osl_free_lock
/* Free a previously held lock. */
extern TW_VOID tw_osl_free_lock(struct tw_cl_ctlr_handle *ctlr_handle,
TW_LOCK_HANDLE *lock);
#endif
#ifndef tw_osl_get_local_time
/* Get local time. */
extern TW_TIME tw_osl_get_local_time(TW_VOID);
#endif
#ifndef tw_osl_get_lock
/* Acquire a lock. */
extern TW_VOID tw_osl_get_lock(struct tw_cl_ctlr_handle *ctlr_handle,
TW_LOCK_HANDLE *lock);
#endif
#ifndef tw_osl_init_lock
/* Create/initialize a lock for CL's use. */
extern TW_VOID tw_osl_init_lock(struct tw_cl_ctlr_handle *ctlr_handle,
TW_INT8 *lock_name, TW_LOCK_HANDLE *lock);
#endif
#ifndef tw_osl_memcpy
/* Copy 'size' bytes from 'src' to 'dest'. */
extern TW_VOID tw_osl_memcpy(TW_VOID *src, TW_VOID *dest, TW_INT32 size);
#endif
#ifndef tw_osl_memzero
/* Zero 'size' bytes starting at 'addr'. */
extern TW_VOID tw_osl_memzero(TW_VOID *addr, TW_INT32 size);
#endif
#ifndef tw_osl_notify_event
/* Notify OSL of a controller/CL (or even OSL) event. */
extern TW_VOID tw_osl_notify_event(struct tw_cl_ctlr_handle *ctlr_handle,
struct tw_cl_event_packet *event);
#endif
#ifdef TW_OSL_PCI_CONFIG_ACCESSIBLE
#ifndef tw_osl_read_pci_config
/* Read 'size' bytes from 'offset' in the PCI config space. */
extern TW_UINT32 tw_osl_read_pci_config(
struct tw_cl_ctlr_handle *ctlr_handle, TW_INT32 offset, TW_INT32 size);
#endif
#endif /* TW_OSL_PCI_CONFIG_ACCESSIBLE */
#ifndef tw_osl_read_reg
/* Read 'size' bytes at 'offset' from base address of this controller. */
extern TW_UINT32 tw_osl_read_reg(struct tw_cl_ctlr_handle *ctlr_handle,
TW_INT32 offset, TW_INT32 size);
#endif
#ifndef tw_osl_scan_bus
/* Request OSL for a bus scan. */
extern TW_VOID tw_osl_scan_bus(struct tw_cl_ctlr_handle *ctlr_handle);
#endif
#ifdef TW_OSL_CAN_SLEEP
#ifndef tw_osl_sleep
/* Sleep for 'timeout' ms or until woken up (by tw_osl_wakeup). */
extern TW_INT32 tw_osl_sleep(struct tw_cl_ctlr_handle *ctlr_handle,
TW_SLEEP_HANDLE *sleep_handle, TW_INT32 timeout);
#endif
#endif /* TW_OSL_CAN_SLEEP */
#ifndef tw_osl_sprintf
/* Standard sprintf. */
extern TW_INT32 tw_osl_sprintf(TW_INT8 *dest, const TW_INT8 *fmt, ...);
#endif
#ifndef tw_osl_strcpy
/* Copy string 'src' to 'dest'. */
extern TW_INT8 *tw_osl_strcpy(TW_INT8 *dest, TW_INT8 *src);
#endif
#ifndef tw_osl_strlen
/* Return length of string pointed at by 'str'. */
extern TW_INT32 tw_osl_strlen(TW_VOID *str);
#endif
#ifndef tw_osl_vsprintf
/* Standard vsprintf. */
extern TW_INT32 tw_osl_vsprintf(TW_INT8 *dest, const TW_INT8 *fmt, va_list ap);
#endif
#ifdef TW_OSL_CAN_SLEEP
#ifndef tw_osl_wakeup
/* Wake up a thread sleeping by a call to tw_osl_sleep. */
extern TW_VOID tw_osl_wakeup(struct tw_cl_ctlr_handle *ctlr_handle,
TW_SLEEP_HANDLE *sleep_handle);
#endif
#endif /* TW_OSL_CAN_SLEEP */
#ifdef TW_OSL_PCI_CONFIG_ACCESSIBLE
#ifndef tw_osl_write_pci_config
/* Write 'value' of 'size' bytes at 'offset' in the PCI config space. */
extern TW_VOID tw_osl_write_pci_config(struct tw_cl_ctlr_handle *ctlr_handle,
TW_INT32 offset, TW_INT32 value, TW_INT32 size);
#endif
#endif /* TW_OSL_PCI_CONFIG_ACCESSIBLE */
#ifndef tw_osl_write_reg
/*
* Write 'value' of 'size' (max 4) bytes at 'offset' from base address of
* this controller.
*/
extern TW_VOID tw_osl_write_reg(struct tw_cl_ctlr_handle *ctlr_handle,
TW_INT32 offset, TW_INT32 value, TW_INT32 size);
#endif
/* Functions in the Common Layer */
/* Creates and queues AEN's. Also notifies OS Layer. */
extern TW_VOID tw_cl_create_event(struct tw_cl_ctlr_handle *ctlr_handle,
TW_UINT8 queue_event, TW_UINT8 event_src, TW_UINT16 event_code,
TW_UINT8 severity, TW_UINT8 *severity_str, TW_UINT8 *event_desc,
TW_UINT8 *event_specific_desc, ...);
/* Indicates whether a ctlr is supported by CL. */
extern TW_INT32 tw_cl_ctlr_supported(TW_INT32 vendor_id, TW_INT32 device_id);
/* Submit a firmware cmd packet. */
extern TW_INT32 tw_cl_fw_passthru(struct tw_cl_ctlr_handle *ctlr_handle,
struct tw_cl_req_packet *req_pkt, struct tw_cl_req_handle *req_handle);
/* Find out how much memory CL needs. */
extern TW_INT32 tw_cl_get_mem_requirements(
struct tw_cl_ctlr_handle *ctlr_handle, TW_UINT32 flags,
TW_INT32 device_id, TW_INT32 max_simult_reqs, TW_INT32 max_aens,
TW_UINT32 *alignment, TW_UINT32 *sg_size_factor,
TW_UINT32 *non_dma_mem_size, TW_UINT32 *dma_mem_size
);
/* Return PCI BAR info. */
extern TW_INT32 tw_cl_get_pci_bar_info(TW_INT32 device_id, TW_INT32 bar_type,
TW_INT32 *bar_num, TW_INT32 *bar0_offset, TW_INT32 *bar_size);
/* Initialize Common Layer for a given controller. */
extern TW_INT32 tw_cl_init_ctlr(struct tw_cl_ctlr_handle *ctlr_handle,
TW_UINT32 flags, TW_INT32 device_id, TW_INT32 max_simult_reqs,
TW_INT32 max_aens, TW_VOID *non_dma_mem, TW_VOID *dma_mem,
TW_UINT64 dma_mem_phys
);
extern TW_VOID tw_cl_set_reset_needed(struct tw_cl_ctlr_handle *ctlr_handle);
extern TW_INT32 tw_cl_is_reset_needed(struct tw_cl_ctlr_handle *ctlr_handle);
extern TW_INT32 tw_cl_is_active(struct tw_cl_ctlr_handle *ctlr_handle);
/* CL's interrupt handler. */
extern TW_INT32 tw_cl_interrupt(struct tw_cl_ctlr_handle *ctlr_handle);
/* CL's ioctl handler. */
extern TW_INT32 tw_cl_ioctl(struct tw_cl_ctlr_handle *ctlr_handle,
u_long cmd, TW_VOID *buf);
#ifdef TW_OSL_DEBUG
/* Print CL's state/statistics for a controller. */
extern TW_VOID tw_cl_print_ctlr_stats(struct tw_cl_ctlr_handle *ctlr_handle);
/* Prints CL internal details of a given request. */
extern TW_VOID tw_cl_print_req_info(struct tw_cl_req_handle *req_handle);
#endif /* TW_OSL_DEBUG */
/* Soft reset controller. */
extern TW_INT32 tw_cl_reset_ctlr(struct tw_cl_ctlr_handle *ctlr_handle);
#ifdef TW_OSL_DEBUG
/* Reset CL's statistics for a controller. */
extern TW_VOID tw_cl_reset_stats(struct tw_cl_ctlr_handle *ctlr_handle);
#endif /* TW_OSL_DEBUG */
/* Stop a controller. */
extern TW_INT32 tw_cl_shutdown_ctlr(struct tw_cl_ctlr_handle *ctlr_handle,
TW_UINT32 flags);
/* Submit a SCSI I/O request. */
extern TW_INT32 tw_cl_start_io(struct tw_cl_ctlr_handle *ctlr_handle,
struct tw_cl_req_packet *req_pkt, struct tw_cl_req_handle *req_handle);
#endif /* TW_BUILDING_API */
#endif /* TW_CL_SHARE_H */