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advansys.c：源码内容

ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */
ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */
ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */
ushort tagqng_able; /* try tagged queuing with a device */
ushort ppr_able; /* PPR message capable per TID bitmask. */
uchar max_dvc_qng; /* maximum number of tagged commands per device */
ushort start_motor; /* start motor command allowed */
uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */
uchar chip_no; /* should be assigned by caller */
uchar max_host_qng; /* maximum number of Q'ed command allowed */
uchar irq_no; /* IRQ number */
ushort no_scam; /* scam_tolerant of EEPROM */
struct asc_board *drv_ptr; /* driver pointer to private structure */
uchar chip_scsi_id; /* chip SCSI target ID */
uchar chip_type;
uchar bist_err_code;
ADV_CARR_T *carrier_buf;
ADV_CARR_T *carr_freelist; /* Carrier free list. */
ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */
ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */
ushort carr_pending_cnt; /* Count of pending carriers. */
/*
* Note: The following fields will not be used after initialization. The
* driver may discard the buffer after initialization is done.
*/
ADV_DVC_CFG *cfg; /* temporary configuration structure */
} ADV_DVC_VAR;
#define NO_OF_SG_PER_BLOCK 15
typedef struct asc_sg_block {
uchar reserved1;
uchar reserved2;
uchar reserved3;
uchar sg_cnt; /* Valid entries in block. */
ADV_PADDR sg_ptr; /* Pointer to next sg block. */
struct {
ADV_PADDR sg_addr; /* SG element address. */
ADV_DCNT sg_count; /* SG element count. */
} sg_list[NO_OF_SG_PER_BLOCK];
} ADV_SG_BLOCK;
/*
* ADV_SCSI_REQ_Q - microcode request structure
*
* All fields in this structure up to byte 60 are used by the microcode.
* The microcode makes assumptions about the size and ordering of fields
* in this structure. Do not change the structure definition here without
* coordinating the change with the microcode.
*
* All fields accessed by microcode must be maintained in little_endian
* order.
*/
typedef struct adv_scsi_req_q {
uchar cntl; /* Ucode flags and state (ASC_MC_QC_*). */
uchar target_cmd;
uchar target_id; /* Device target identifier. */
uchar target_lun; /* Device target logical unit number. */
ADV_PADDR data_addr; /* Data buffer physical address. */
ADV_DCNT data_cnt; /* Data count. Ucode sets to residual. */
ADV_PADDR sense_addr;
ADV_PADDR carr_pa;
uchar mflag;
uchar sense_len;
uchar cdb_len; /* SCSI CDB length. Must <= 16 bytes. */
uchar scsi_cntl;
uchar done_status; /* Completion status. */
uchar scsi_status; /* SCSI status byte. */
uchar host_status; /* Ucode host status. */
uchar sg_working_ix;
uchar cdb[12]; /* SCSI CDB bytes 0-11. */
ADV_PADDR sg_real_addr; /* SG list physical address. */
ADV_PADDR scsiq_rptr;
uchar cdb16[4]; /* SCSI CDB bytes 12-15. */
ADV_VADDR scsiq_ptr;
ADV_VADDR carr_va;
/*
* End of microcode structure - 60 bytes. The rest of the structure
* is used by the Adv Library and ignored by the microcode.
*/
ADV_VADDR srb_ptr;
ADV_SG_BLOCK *sg_list_ptr; /* SG list virtual address. */
char *vdata_addr; /* Data buffer virtual address. */
uchar a_flag;
uchar pad[2]; /* Pad out to a word boundary. */
} ADV_SCSI_REQ_Q;
/*
* Microcode idle loop commands
*/
#define IDLE_CMD_COMPLETED 0
#define IDLE_CMD_STOP_CHIP 0x0001
#define IDLE_CMD_STOP_CHIP_SEND_INT 0x0002
#define IDLE_CMD_SEND_INT 0x0004
#define IDLE_CMD_ABORT 0x0008
#define IDLE_CMD_DEVICE_RESET 0x0010
#define IDLE_CMD_SCSI_RESET_START 0x0020 /* Assert SCSI Bus Reset */
#define IDLE_CMD_SCSI_RESET_END 0x0040 /* Deassert SCSI Bus Reset */
#define IDLE_CMD_SCSIREQ 0x0080
#define IDLE_CMD_STATUS_SUCCESS 0x0001
#define IDLE_CMD_STATUS_FAILURE 0x0002
/*
* AdvSendIdleCmd() flag definitions.
*/
#define ADV_NOWAIT 0x01
/*
* Wait loop time out values.
*/
#define SCSI_WAIT_10_SEC 10UL /* 10 seconds */
#define SCSI_WAIT_100_MSEC 100UL /* 100 milliseconds */
#define SCSI_US_PER_MSEC 1000 /* microseconds per millisecond */
#define SCSI_MS_PER_SEC 1000UL /* milliseconds per second */
#define SCSI_MAX_RETRY 10 /* retry count */
#define ADV_ASYNC_RDMA_FAILURE 0x01 /* Fatal RDMA failure. */
#define ADV_ASYNC_SCSI_BUS_RESET_DET 0x02 /* Detected SCSI Bus Reset. */
#define ADV_ASYNC_CARRIER_READY_FAILURE 0x03 /* Carrier Ready failure. */
#define ADV_RDMA_IN_CARR_AND_Q_INVALID 0x04 /* RDMAed-in data invalid. */
#define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */
/*
* Device drivers must define the following functions.
*/
STATIC inline ulong DvcEnterCritical(void);
STATIC inline void DvcLeaveCritical(ulong);
STATIC void DvcSleepMilliSecond(ADV_DCNT);
STATIC uchar DvcAdvReadPCIConfigByte(ADV_DVC_VAR *, ushort);
STATIC void DvcAdvWritePCIConfigByte(ADV_DVC_VAR *, ushort, uchar);
STATIC ADV_PADDR DvcGetPhyAddr(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *,
uchar *, ASC_SDCNT *, int);
STATIC void DvcDelayMicroSecond(ADV_DVC_VAR *, ushort);
/*
* Adv Library functions available to drivers.
*/
STATIC int AdvExeScsiQueue(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *);
STATIC int AdvISR(ADV_DVC_VAR *);
STATIC int AdvInitGetConfig(ADV_DVC_VAR *);
STATIC int AdvInitAsc3550Driver(ADV_DVC_VAR *);
STATIC int AdvInitAsc38C0800Driver(ADV_DVC_VAR *);
STATIC int AdvInitAsc38C1600Driver(ADV_DVC_VAR *);
STATIC int AdvResetChipAndSB(ADV_DVC_VAR *);
STATIC int AdvResetSB(ADV_DVC_VAR *asc_dvc);
/*
* Internal Adv Library functions.
*/
STATIC int AdvSendIdleCmd(ADV_DVC_VAR *, ushort, ADV_DCNT);
STATIC void AdvInquiryHandling(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *);
STATIC int AdvInitFrom3550EEP(ADV_DVC_VAR *);
STATIC int AdvInitFrom38C0800EEP(ADV_DVC_VAR *);
STATIC int AdvInitFrom38C1600EEP(ADV_DVC_VAR *);
STATIC ushort AdvGet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *);
STATIC void AdvSet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *);
STATIC ushort AdvGet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *);
STATIC void AdvSet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *);
STATIC ushort AdvGet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *);
STATIC void AdvSet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *);
STATIC void AdvWaitEEPCmd(AdvPortAddr);
STATIC ushort AdvReadEEPWord(AdvPortAddr, int);
/*
* PCI Bus Definitions
*/
#define AscPCICmdRegBits_BusMastering 0x0007
#define AscPCICmdRegBits_ParErrRespCtrl 0x0040
/* Read byte from a register. */
#define AdvReadByteRegister(iop_base, reg_off)
(ADV_MEM_READB((iop_base) + (reg_off)))
/* Write byte to a register. */
#define AdvWriteByteRegister(iop_base, reg_off, byte)
(ADV_MEM_WRITEB((iop_base) + (reg_off), (byte)))
/* Read word (2 bytes) from a register. */
#define AdvReadWordRegister(iop_base, reg_off)
(ADV_MEM_READW((iop_base) + (reg_off)))
/* Write word (2 bytes) to a register. */
#define AdvWriteWordRegister(iop_base, reg_off, word)
(ADV_MEM_WRITEW((iop_base) + (reg_off), (word)))
/* Write dword (4 bytes) to a register. */
#define AdvWriteDWordRegister(iop_base, reg_off, dword)
(ADV_MEM_WRITEDW((iop_base) + (reg_off), (dword)))
/* Read byte from LRAM. */
#define AdvReadByteLram(iop_base, addr, byte)
do {
ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr));
(byte) = ADV_MEM_READB((iop_base) + IOPB_RAM_DATA);
} while (0)
/* Write byte to LRAM. */
#define AdvWriteByteLram(iop_base, addr, byte)
(ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)),
ADV_MEM_WRITEB((iop_base) + IOPB_RAM_DATA, (byte)))
/* Read word (2 bytes) from LRAM. */
#define AdvReadWordLram(iop_base, addr, word)
do {
ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr));
(word) = (ADV_MEM_READW((iop_base) + IOPW_RAM_DATA));
} while (0)
/* Write word (2 bytes) to LRAM. */
#define AdvWriteWordLram(iop_base, addr, word)
(ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)),
ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word)))
/* Write little-endian double word (4 bytes) to LRAM */
/* Because of unspecified C language ordering don't use auto-increment. */
#define AdvWriteDWordLramNoSwap(iop_base, addr, dword)
((ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)),
ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA,
cpu_to_le16((ushort) ((dword) & 0xFFFF)))),
(ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr) + 2),
ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA,
cpu_to_le16((ushort) ((dword >> 16) & 0xFFFF)))))
/* Read word (2 bytes) from LRAM assuming that the address is already set. */
#define AdvReadWordAutoIncLram(iop_base)
(ADV_MEM_READW((iop_base) + IOPW_RAM_DATA))
/* Write word (2 bytes) to LRAM assuming that the address is already set. */
#define AdvWriteWordAutoIncLram(iop_base, word)
(ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word)))
/*
* Define macro to check for Condor signature.
*
* Evaluate to ADV_TRUE if a Condor chip is found the specified port
* address 'iop_base'. Otherwise evalue to ADV_FALSE.
*/
#define AdvFindSignature(iop_base)
(((AdvReadByteRegister((iop_base), IOPB_CHIP_ID_1) ==
ADV_CHIP_ID_BYTE) &&
(AdvReadWordRegister((iop_base), IOPW_CHIP_ID_0) ==
ADV_CHIP_ID_WORD)) ? ADV_TRUE : ADV_FALSE)
/*
* Define macro to Return the version number of the chip at 'iop_base'.
*
* The second parameter 'bus_type' is currently unused.
*/
#define AdvGetChipVersion(iop_base, bus_type)
AdvReadByteRegister((iop_base), IOPB_CHIP_TYPE_REV)
/*
* Abort an SRB in the chip's RISC Memory. The 'srb_ptr' argument must
* match the ASC_SCSI_REQ_Q 'srb_ptr' field.
*
* If the request has not yet been sent to the device it will simply be
* aborted from RISC memory. If the request is disconnected it will be
* aborted on reselection by sending an Abort Message to the target ID.
*
* Return value:
* ADV_TRUE(1) - Queue was successfully aborted.
* ADV_FALSE(0) - Queue was not found on the active queue list.
*/
#define AdvAbortQueue(asc_dvc, scsiq)
AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_ABORT,
(ADV_DCNT) (scsiq))
/*
* Send a Bus Device Reset Message to the specified target ID.
*
* All outstanding commands will be purged if sending the
* Bus Device Reset Message is successful.
*
* Return Value:
* ADV_TRUE(1) - All requests on the target are purged.
* ADV_FALSE(0) - Couldn't issue Bus Device Reset Message; Requests
* are not purged.
*/
#define AdvResetDevice(asc_dvc, target_id)
AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_DEVICE_RESET,
(ADV_DCNT) (target_id))
/*
* SCSI Wide Type definition.
*/
#define ADV_SCSI_BIT_ID_TYPE ushort
/*
* AdvInitScsiTarget() 'cntl_flag' options.
*/
#define ADV_SCAN_LUN 0x01
#define ADV_CAPINFO_NOLUN 0x02
/*
* Convert target id to target id bit mask.
*/
#define ADV_TID_TO_TIDMASK(tid) (0x01 << ((tid) & ADV_MAX_TID))
/*
* ASC_SCSI_REQ_Q 'done_status' and 'host_status' return values.
*/
#define QD_NO_STATUS 0x00 /* Request not completed yet. */
#define QD_NO_ERROR 0x01
#define QD_ABORTED_BY_HOST 0x02
#define QD_WITH_ERROR 0x04
#define QHSTA_NO_ERROR 0x00
#define QHSTA_M_SEL_TIMEOUT 0x11
#define QHSTA_M_DATA_OVER_RUN 0x12
#define QHSTA_M_UNEXPECTED_BUS_FREE 0x13
#define QHSTA_M_QUEUE_ABORTED 0x15
#define QHSTA_M_SXFR_SDMA_ERR 0x16 /* SXFR_STATUS SCSI DMA Error */
#define QHSTA_M_SXFR_SXFR_PERR 0x17 /* SXFR_STATUS SCSI Bus Parity Error */
#define QHSTA_M_RDMA_PERR 0x18 /* RISC PCI DMA parity error */
#define QHSTA_M_SXFR_OFF_UFLW 0x19 /* SXFR_STATUS Offset Underflow */
#define QHSTA_M_SXFR_OFF_OFLW 0x20 /* SXFR_STATUS Offset Overflow */
#define QHSTA_M_SXFR_WD_TMO 0x21 /* SXFR_STATUS Watchdog Timeout */
#define QHSTA_M_SXFR_DESELECTED 0x22 /* SXFR_STATUS Deselected */
/* Note: QHSTA_M_SXFR_XFR_OFLW is identical to QHSTA_M_DATA_OVER_RUN. */
#define QHSTA_M_SXFR_XFR_OFLW 0x12 /* SXFR_STATUS Transfer Overflow */
#define QHSTA_M_SXFR_XFR_PH_ERR 0x24 /* SXFR_STATUS Transfer Phase Error */
#define QHSTA_M_SXFR_UNKNOWN_ERROR 0x25 /* SXFR_STATUS Unknown Error */
#define QHSTA_M_SCSI_BUS_RESET 0x30 /* Request aborted from SBR */
#define QHSTA_M_SCSI_BUS_RESET_UNSOL 0x31 /* Request aborted from unsol. SBR */
#define QHSTA_M_BUS_DEVICE_RESET 0x32 /* Request aborted from BDR */
#define QHSTA_M_DIRECTION_ERR 0x35 /* Data Phase mismatch */
#define QHSTA_M_DIRECTION_ERR_HUNG 0x36 /* Data Phase mismatch and bus hang */
#define QHSTA_M_WTM_TIMEOUT 0x41
#define QHSTA_M_BAD_CMPL_STATUS_IN 0x42
#define QHSTA_M_NO_AUTO_REQ_SENSE 0x43
#define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44
#define QHSTA_M_INVALID_DEVICE 0x45 /* Bad target ID */
#define QHSTA_M_FROZEN_TIDQ 0x46 /* TID Queue frozen. */
#define QHSTA_M_SGBACKUP_ERROR 0x47 /* Scatter-Gather backup error */
/*
* Default EEPROM Configuration structure defined in a_init.c.
*/
extern ADVEEP_3550_CONFIG Default_3550_EEPROM_Config;
extern ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config;
extern ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config;
/*
* DvcGetPhyAddr() flag arguments
*/
#define ADV_IS_SCSIQ_FLAG 0x01 /* 'addr' is ASC_SCSI_REQ_Q pointer */
#define ADV_ASCGETSGLIST_VADDR 0x02 /* 'addr' is AscGetSGList() virtual addr */
#define ADV_IS_SENSE_FLAG 0x04 /* 'addr' is sense virtual pointer */
#define ADV_IS_DATA_FLAG 0x08 /* 'addr' is data virtual pointer */
#define ADV_IS_SGLIST_FLAG 0x10 /* 'addr' is sglist virtual pointer */
#define ADV_IS_CARRIER_FLAG 0x20 /* 'addr' is ADV_CARR_T pointer */
/* Return the address that is aligned at the next doubleword >= to 'addr'. */
#define ADV_8BALIGN(addr) (((ulong) (addr) + 0x7) & ~0x7)
#define ADV_16BALIGN(addr) (((ulong) (addr) + 0xF) & ~0xF)
#define ADV_32BALIGN(addr) (((ulong) (addr) + 0x1F) & ~0x1F)
/*
* Total contiguous memory needed for driver SG blocks.
*
* ADV_MAX_SG_LIST must be defined by a driver. It is the maximum
* number of scatter-gather elements the driver supports in a
* single request.
*/
#define ADV_SG_LIST_MAX_BYTE_SIZE
(sizeof(ADV_SG_BLOCK) *
((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK))
/*
* Inquiry data structure and bitfield macros
*
* Using bitfields to access the subchar data isn't portable across
* endianness, so instead mask and shift. Only quantities of more
* than 1 bit are shifted, since the others are just tested for true
* or false.
*/
#define ADV_INQ_DVC_TYPE(inq) ((inq)->periph & 0x1f)
#define ADV_INQ_QUALIFIER(inq) (((inq)->periph & 0xe0) >> 5)
#define ADV_INQ_DVC_TYPE_MOD(inq) ((inq)->devtype & 0x7f)
#define ADV_INQ_REMOVABLE(inq) ((inq)->devtype & 0x80)
#define ADV_INQ_ANSI_VER(inq) ((inq)->ver & 0x07)
#define ADV_INQ_ECMA_VER(inq) (((inq)->ver & 0x38) >> 3)
#define ADV_INQ_ISO_VER(inq) (((inq)->ver & 0xc0) >> 6)
#define ADV_INQ_RESPONSE_FMT(inq) ((inq)->byte3 & 0x0f)
#define ADV_INQ_TERM_IO(inq) ((inq)->byte3 & 0x40)
#define ADV_INQ_ASYNC_NOTIF(inq) ((inq)->byte3 & 0x80)
#define ADV_INQ_SOFT_RESET(inq) ((inq)->flags & 0x01)
#define ADV_INQ_CMD_QUEUE(inq) ((inq)->flags & 0x02)
#define ADV_INQ_LINK_CMD(inq) ((inq)->flags & 0x08)
#define ADV_INQ_SYNC(inq) ((inq)->flags & 0x10)
#define ADV_INQ_WIDE16(inq) ((inq)->flags & 0x20)
#define ADV_INQ_WIDE32(inq) ((inq)->flags & 0x40)
#define ADV_INQ_REL_ADDR(inq) ((inq)->flags & 0x80)
#define ADV_INQ_INFO_UNIT(inq) ((inq)->info & 0x01)
#define ADV_INQ_QUICK_ARB(inq) ((inq)->info & 0x02)
#define ADV_INQ_CLOCKING(inq) (((inq)->info & 0x0c) >> 2)
typedef struct {
uchar periph; /* peripheral device type [0:4] */
/* peripheral qualifier [5:7] */
uchar devtype; /* device type modifier (for SCSI I) [0:6] */
/* RMB - removable medium bit [7] */
uchar ver; /* ANSI approved version [0:2] */
/* ECMA version [3:5] */
/* ISO version [6:7] */
uchar byte3; /* response data format [0:3] */
/* 0 SCSI 1 */
/* 1 CCS */
/* 2 SCSI-2 */
/* 3-F reserved */
/* reserved [4:5] */
/* terminate I/O process bit (see 5.6.22) [6] */
/* asynch. event notification (processor) [7] */
uchar add_len; /* additional length */
uchar res1; /* reserved */
uchar res2; /* reserved */
uchar flags; /* soft reset implemented [0] */
/* command queuing [1] */
/* reserved [2] */
/* linked command for this logical unit [3] */
/* synchronous data transfer [4] */
/* wide bus 16 bit data transfer [5] */
/* wide bus 32 bit data transfer [6] */
/* relative addressing mode [7] */
uchar vendor_id[8]; /* vendor identification */
uchar product_id[16]; /* product identification */
uchar product_rev_level[4]; /* product revision level */
uchar vendor_specific[20]; /* vendor specific */
uchar info; /* information unit supported [0] */
/* quick arbitrate supported [1] */
/* clocking field [2:3] */
/* reserved [4:7] */
uchar res3; /* reserved */
} ADV_SCSI_INQUIRY; /* 58 bytes */
/*
* --- Driver Constants and Macros
*/
#define ASC_NUM_BOARD_SUPPORTED 16
#define ASC_NUM_IOPORT_PROBE 4
#define ASC_NUM_BUS 4
/* Reference Scsi_Host hostdata */
#define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata))
/* asc_board_t flags */
#define ASC_HOST_IN_RESET 0x01
#define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */
#define ASC_SELECT_QUEUE_DEPTHS 0x08
#define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0)
#define ASC_WIDE_BOARD(boardp) ((boardp)->flags & ASC_IS_WIDE_BOARD)
#define NO_ISA_DMA 0xff /* No ISA DMA Channel Used */
/*
* If the Linux kernel version supports freeing initialization code
* and data after loading, define macros for this purpose. These macros
* are not used when the driver is built as a module, cf. linux/init.h.
*/
#if ASC_LINUX_KERNEL24
#define ASC_INITFUNC(type, func) type __init func
#elif ASC_LINUX_KERNEL22
#define ASC_INITFUNC(type, func) __initfunc(type func)
#endif
#define ASC_INITDATA __initdata
#define ASC_INIT __init
#define ASC_INFO_SIZE 128 /* advansys_info() line size */
#ifdef CONFIG_PROC_FS
/* /proc/scsi/advansys/[0...] related definitions */
#define ASC_PRTBUF_SIZE 2048
#define ASC_PRTLINE_SIZE 160
#define ASC_PRT_NEXT()
if (cp) {
totlen += len;
leftlen -= len;
if (leftlen == 0) {
return totlen;
}
cp += len;
}
#define ASC_MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif /* CONFIG_PROC_FS */
/*
* XXX - Release and acquire the io_request_lock. These macros are needed
* because the 2.4 kernel SCSI mid-level driver holds the 'io_request_lock'
* on entry to SCSI low-level drivers.
*
* These definitions and all code that uses code should be removed when the
* SCSI mid-level driver no longer holds the 'io_request_lock' on entry to
* SCSI low-level driver detect, queuecommand, and reset entrypoints.
*
* The interrupt flags values doesn't matter in the macros because the
* SCSI mid-level will save and restore the flags values before and after
* calling advansys_detect, advansys_queuecommand, and advansys_reset where
* these macros are used. We do want interrupts enabled after the lock is
* released so an explicit sti() is done. The driver only needs interrupts
* disabled when it acquires the per board lock.
*/
#define ASC_UNLOCK_IO_REQUEST_LOCK
{
ulong flags; /* flags value not needed, cf. comment above. */
save_flags(flags);
spin_unlock_irqrestore(&io_request_lock, flags);
sti(); /* enable interrupts */
}
#define ASC_LOCK_IO_REQUEST_LOCK
{
ulong flags; /* flags value not needed, cf. comment above. */
spin_lock_irqsave(&io_request_lock, flags);
}
/* Asc Library return codes */
#define ASC_TRUE 1
#define ASC_FALSE 0
#define ASC_NOERROR 1
#define ASC_BUSY 0
#define ASC_ERROR (-1)
/* Scsi_Cmnd function return codes */
#define STATUS_BYTE(byte) (byte)
#define MSG_BYTE(byte) ((byte) << 8)
#define HOST_BYTE(byte) ((byte) << 16)
#define DRIVER_BYTE(byte) ((byte) << 24)
/*
* The following definitions and macros are OS independent interfaces to
* the queue functions:
* REQ - SCSI request structure
* REQP - pointer to SCSI request structure
* REQPTID(reqp) - reqp's target id
* REQPNEXT(reqp) - reqp's next pointer
* REQPNEXTP(reqp) - pointer to reqp's next pointer
* REQPTIME(reqp) - reqp's time stamp value
* REQTIMESTAMP() - system time stamp value
*/
typedef Scsi_Cmnd REQ, *REQP;
#define REQPNEXT(reqp) ((REQP) ((reqp)->host_scribble))
#define REQPNEXTP(reqp) ((REQP *) &((reqp)->host_scribble))
#define REQPTID(reqp) ((reqp)->target)
#define REQPTIME(reqp) ((reqp)->SCp.this_residual)
#define REQTIMESTAMP() (jiffies)
#define REQTIMESTAT(function, ascq, reqp, tid)
{
/*
* If the request time stamp is less than the system time stamp, then
* maybe the system time stamp wrapped. Set the request time to zero.
*/
if (REQPTIME(reqp) <= REQTIMESTAMP()) {
REQPTIME(reqp) = REQTIMESTAMP() - REQPTIME(reqp);
} else {
/* Indicate an error occurred with the assertion. */
ASC_ASSERT(REQPTIME(reqp) <= REQTIMESTAMP());
REQPTIME(reqp) = 0;
}
/* Handle first minimum time case without external initialization. */
if (((ascq)->q_tot_cnt[tid] == 1) ||
(REQPTIME(reqp) < (ascq)->q_min_tim[tid])) {
(ascq)->q_min_tim[tid] = REQPTIME(reqp);
ASC_DBG3(1, "%s: new q_min_tim[%d] %un",
(function), (tid), (ascq)->q_min_tim[tid]);
}
if (REQPTIME(reqp) > (ascq)->q_max_tim[tid]) {
(ascq)->q_max_tim[tid] = REQPTIME(reqp);
ASC_DBG3(1, "%s: new q_max_tim[%d] %un",
(function), tid, (ascq)->q_max_tim[tid]);
}
(ascq)->q_tot_tim[tid] += REQPTIME(reqp);
/* Reset the time stamp field. */
REQPTIME(reqp) = 0;
}
/* asc_enqueue() flags */
#define ASC_FRONT 1
#define ASC_BACK 2
/* asc_dequeue_list() argument */
#define ASC_TID_ALL (-1)
/* Return non-zero, if the queue is empty. */
#define ASC_QUEUE_EMPTY(ascq) ((ascq)->q_tidmask == 0)
/* PCI configuration declarations */
#define PCI_BASE_CLASS_PREDEFINED 0x00
#define PCI_BASE_CLASS_MASS_STORAGE 0x01
#define PCI_BASE_CLASS_NETWORK 0x02
#define PCI_BASE_CLASS_DISPLAY 0x03
#define PCI_BASE_CLASS_MULTIMEDIA 0x04
#define PCI_BASE_CLASS_MEMORY_CONTROLLER 0x05
#define PCI_BASE_CLASS_BRIDGE_DEVICE 0x06
/* MASS STORAGE */
#define PCI_SUB_CLASS_SCSI_CONTROLLER 0x00
#define PCI_SUB_CLASS_IDE_CONTROLLER 0x01
#define PCI_SUB_CLASS_FLOPPY_DISK_CONTROLLER 0x02
#define PCI_SUB_CLASS_IPI_BUS_CONTROLLER 0x03
#define PCI_SUB_CLASS_OTHER_MASS_CONTROLLER 0x80
/* NETWORK CONTROLLER */
#define PCI_SUB_CLASS_ETHERNET_CONTROLLER 0x00
#define PCI_SUB_CLASS_TOKEN_RING_CONTROLLER 0x01
#define PCI_SUB_CLASS_FDDI_CONTROLLER 0x02
#define PCI_SUB_CLASS_OTHER_NETWORK_CONTROLLER 0x80
/* DISPLAY CONTROLLER */
#define PCI_SUB_CLASS_VGA_CONTROLLER 0x00
#define PCI_SUB_CLASS_XGA_CONTROLLER 0x01
#define PCI_SUB_CLASS_OTHER_DISPLAY_CONTROLLER 0x80
/* MULTIMEDIA CONTROLLER */
#define PCI_SUB_CLASS_VIDEO_DEVICE 0x00
#define PCI_SUB_CLASS_AUDIO_DEVICE 0x01
#define PCI_SUB_CLASS_OTHER_MULTIMEDIA_DEVICE 0x80
/* MEMORY CONTROLLER */
#define PCI_SUB_CLASS_RAM_CONTROLLER 0x00
#define PCI_SUB_CLASS_FLASH_CONTROLLER 0x01
#define PCI_SUB_CLASS_OTHER_MEMORY_CONTROLLER 0x80
/* BRIDGE CONTROLLER */
#define PCI_SUB_CLASS_HOST_BRIDGE_CONTROLLER 0x00
#define PCI_SUB_CLASS_ISA_BRIDGE_CONTROLLER 0x01
#define PCI_SUB_CLASS_EISA_BRIDGE_CONTROLLER 0x02
#define PCI_SUB_CLASS_MC_BRIDGE_CONTROLLER 0x03
#define PCI_SUB_CLASS_PCI_TO_PCI_BRIDGE_CONTROLLER 0x04
#define PCI_SUB_CLASS_PCMCIA_BRIDGE_CONTROLLER 0x05
#define PCI_SUB_CLASS_OTHER_BRIDGE_CONTROLLER 0x80
#define PCI_MAX_SLOT 0x1F
#define PCI_MAX_BUS 0xFF
#define PCI_IOADDRESS_MASK 0xFFFE
#define ASC_PCI_VENDORID 0x10CD
#define ASC_PCI_DEVICE_ID_CNT 6 /* PCI Device ID count. */
#define ASC_PCI_DEVICE_ID_1100 0x1100
#define ASC_PCI_DEVICE_ID_1200 0x1200
#define ASC_PCI_DEVICE_ID_1300 0x1300
#define ASC_PCI_DEVICE_ID_2300 0x2300 /* ASC-3550 */
#define ASC_PCI_DEVICE_ID_2500 0x2500 /* ASC-38C0800 */
#define ASC_PCI_DEVICE_ID_2700 0x2700 /* ASC-38C1600 */
/* PCI IO Port Addresses to generate special cycle */
#define PCI_CONFIG_ADDRESS_MECH1 0x0CF8
#define PCI_CONFIG_DATA_MECH1 0x0CFC
#define PCI_CONFIG_FORWARD_REGISTER 0x0CFA /* 0=type 0; 1=type 1; */
#define PCI_CONFIG_BUS_NUMBER_MASK 0x00FF0000
#define PCI_CONFIG_DEVICE_FUNCTION_MASK 0x0000FF00
#define PCI_CONFIG_REGISTER_NUMBER_MASK 0x000000F8
#define PCI_DEVICE_FOUND 0x0000
#define PCI_DEVICE_NOT_FOUND 0xffff
#define SUBCLASS_OFFSET 0x0A
#define CLASSCODE_OFFSET 0x0B
#define VENDORID_OFFSET 0x00
#define DEVICEID_OFFSET 0x02
#ifndef ADVANSYS_STATS
#define ASC_STATS(shp, counter)
#define ASC_STATS_ADD(shp, counter, count)
#else /* ADVANSYS_STATS */
#define ASC_STATS(shp, counter)
(ASC_BOARDP(shp)->asc_stats.counter++)
#define ASC_STATS_ADD(shp, counter, count)
(ASC_BOARDP(shp)->asc_stats.counter += (count))
#endif /* ADVANSYS_STATS */
#define ASC_CEILING(val, unit) (((val) + ((unit) - 1))/(unit))
/* If the result wraps when calculating tenths, return 0. */
#define ASC_TENTHS(num, den)
(((10 * ((num)/(den))) > (((num) * 10)/(den))) ?
0 : ((((num) * 10)/(den)) - (10 * ((num)/(den)))))
/*
* Display a message to the console.
*/
#define ASC_PRINT(s)
{
printk("advansys: ");
printk(s);
}
#define ASC_PRINT1(s, a1)
{
printk("advansys: ");
printk((s), (a1));
}
#define ASC_PRINT2(s, a1, a2)
{
printk("advansys: ");
printk((s), (a1), (a2));
}
#define ASC_PRINT3(s, a1, a2, a3)
{
printk("advansys: ");
printk((s), (a1), (a2), (a3));
}
#define ASC_PRINT4(s, a1, a2, a3, a4)
{
printk("advansys: ");
printk((s), (a1), (a2), (a3), (a4));
}
#ifndef ADVANSYS_DEBUG
#define ASC_DBG(lvl, s)
#define ASC_DBG1(lvl, s, a1)
#define ASC_DBG2(lvl, s, a1, a2)
#define ASC_DBG3(lvl, s, a1, a2, a3)
#define ASC_DBG4(lvl, s, a1, a2, a3, a4)
#define ASC_DBG_PRT_SCSI_HOST(lvl, s)
#define ASC_DBG_PRT_SCSI_CMND(lvl, s)
#define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp)
#define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp)
#define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone)
#define ADV_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp)
#define ASC_DBG_PRT_HEX(lvl, name, start, length)
#define ASC_DBG_PRT_CDB(lvl, cdb, len)
#define ASC_DBG_PRT_SENSE(lvl, sense, len)
#define ASC_DBG_PRT_INQUIRY(lvl, inq, len)
#else /* ADVANSYS_DEBUG */
/*
* Debugging Message Levels:
* 0: Errors Only
* 1: High-Level Tracing
* 2-N: Verbose Tracing
*/
#define ASC_DBG(lvl, s)
{
if (asc_dbglvl >= (lvl)) {
printk(s);
}
}
#define ASC_DBG1(lvl, s, a1)
{
if (asc_dbglvl >= (lvl)) {
printk((s), (a1));
}
}
#define ASC_DBG2(lvl, s, a1, a2)
{
if (asc_dbglvl >= (lvl)) {
printk((s), (a1), (a2));
}
}
#define ASC_DBG3(lvl, s, a1, a2, a3)
{
if (asc_dbglvl >= (lvl)) {
printk((s), (a1), (a2), (a3));
}
}
#define ASC_DBG4(lvl, s, a1, a2, a3, a4)
{
if (asc_dbglvl >= (lvl)) {
printk((s), (a1), (a2), (a3), (a4));
}
}
#define ASC_DBG_PRT_SCSI_HOST(lvl, s)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_scsi_host(s);
}
}
#define ASC_DBG_PRT_SCSI_CMND(lvl, s)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_scsi_cmnd(s);
}
}
#define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_asc_scsi_q(scsiqp);
}
}
#define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_asc_qdone_info(qdone);
}
}
#define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_adv_scsi_req_q(scsiqp);
}
}
#define ASC_DBG_PRT_HEX(lvl, name, start, length)
{
if (asc_dbglvl >= (lvl)) {
asc_prt_hex((name), (start), (length));
}
}
#define ASC_DBG_PRT_CDB(lvl, cdb, len)
ASC_DBG_PRT_HEX((lvl), "CDB", (uchar *) (cdb), (len));
#define ASC_DBG_PRT_SENSE(lvl, sense, len)
ASC_DBG_PRT_HEX((lvl), "SENSE", (uchar *) (sense), (len));
#define ASC_DBG_PRT_INQUIRY(lvl, inq, len)
ASC_DBG_PRT_HEX((lvl), "INQUIRY", (uchar *) (inq), (len));
#endif /* ADVANSYS_DEBUG */
#ifndef ADVANSYS_ASSERT
#define ASC_ASSERT(a)
#else /* ADVANSYS_ASSERT */
#define ASC_ASSERT(a)
{
if (!(a)) {
printk("ASC_ASSERT() Failure: file %s, line %dn",
__FILE__, __LINE__);
}
}
#endif /* ADVANSYS_ASSERT */
/*
* --- Driver Structures
*/
#ifdef ADVANSYS_STATS
/* Per board statistics structure */
struct asc_stats {
/* Driver Entrypoint Statistics */
ADV_DCNT queuecommand; /* # calls to advansys_queuecommand() */
ADV_DCNT reset; /* # calls to advansys_eh_bus_reset() */
ADV_DCNT biosparam; /* # calls to advansys_biosparam() */
ADV_DCNT interrupt; /* # advansys_interrupt() calls */
ADV_DCNT callback; /* # calls to asc/adv_isr_callback() */
ADV_DCNT done; /* # calls to request's scsi_done function */
ADV_DCNT build_error; /* # asc/adv_build_req() ASC_ERROR returns. */
ADV_DCNT adv_build_noreq; /* # adv_build_req() adv_req_t alloc. fail. */
ADV_DCNT adv_build_nosg; /* # adv_build_req() adv_sgblk_t alloc. fail. */
/* AscExeScsiQueue()/AdvExeScsiQueue() Statistics */
ADV_DCNT exe_noerror; /* # ASC_NOERROR returns. */
ADV_DCNT exe_busy; /* # ASC_BUSY returns. */
ADV_DCNT exe_error; /* # ASC_ERROR returns. */
ADV_DCNT exe_unknown; /* # unknown returns. */
/* Data Transfer Statistics */
ADV_DCNT cont_cnt; /* # non-scatter-gather I/O requests received */
ADV_DCNT cont_xfer; /* # contiguous transfer 512-bytes */
ADV_DCNT sg_cnt; /* # scatter-gather I/O requests received */
ADV_DCNT sg_elem; /* # scatter-gather elements */
ADV_DCNT sg_xfer; /* # scatter-gather transfer 512-bytes */
};
#endif /* ADVANSYS_STATS */
/*
* Request queuing structure
*/
typedef struct asc_queue {
ADV_SCSI_BIT_ID_TYPE q_tidmask; /* queue mask */
REQP q_first[ADV_MAX_TID+1]; /* first queued request */
REQP q_last[ADV_MAX_TID+1]; /* last queued request */
#ifdef ADVANSYS_STATS
short q_cur_cnt[ADV_MAX_TID+1]; /* current queue count */
short q_max_cnt[ADV_MAX_TID+1]; /* maximum queue count */
ADV_DCNT q_tot_cnt[ADV_MAX_TID+1]; /* total enqueue count */
ADV_DCNT q_tot_tim[ADV_MAX_TID+1]; /* total time queued */
ushort q_max_tim[ADV_MAX_TID+1]; /* maximum time queued */
ushort q_min_tim[ADV_MAX_TID+1]; /* minimum time queued */
#endif /* ADVANSYS_STATS */
} asc_queue_t;
/*
* Adv Library Request Structures
*
* The following two structures are used to process Wide Board requests.
*
* The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library
* and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the
* adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the
* Mid-Level SCSI request structure.
*
* Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each
* ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux
* up to 255 scatter-gather elements may be used per request or
* ADV_SCSI_REQ_Q.
*
* Both structures must be 32 byte aligned.
*/
typedef struct adv_sgblk {
ADV_SG_BLOCK sg_block; /* Sgblock structure. */
uchar align[32]; /* Sgblock structure padding. */
struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */
} adv_sgblk_t;
typedef struct adv_req {
ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */
uchar align[32]; /* Request structure padding. */
Scsi_Cmnd *cmndp; /* Mid-Level SCSI command pointer. */
adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */
struct adv_req *next_reqp; /* Next Request Structure. */
} adv_req_t;
/*
* Structure allocated for each board.
*
* This structure is allocated by scsi_register() at the end
* of the 'Scsi_Host' structure starting at the 'hostdata'
* field. It is guaranteed to be allocated from DMA-able memory.
*/
typedef struct asc_board {
int id; /* Board Id */
uint flags; /* Board flags */
union {
ASC_DVC_VAR asc_dvc_var; /* Narrow board */
ADV_DVC_VAR adv_dvc_var; /* Wide board */
} dvc_var;
union {
ASC_DVC_CFG asc_dvc_cfg; /* Narrow board */
ADV_DVC_CFG adv_dvc_cfg; /* Wide board */
} dvc_cfg;
ushort asc_n_io_port; /* Number I/O ports. */
asc_queue_t active; /* Active command queue */
asc_queue_t waiting; /* Waiting command queue */
asc_queue_t done; /* Done command queue */
ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */
Scsi_Device *device[ADV_MAX_TID+1]; /* Mid-Level Scsi Device */
ushort reqcnt[ADV_MAX_TID+1]; /* Starvation request count */
ADV_SCSI_BIT_ID_TYPE queue_full; /* Queue full mask */
ushort queue_full_cnt[ADV_MAX_TID+1]; /* Queue full count */
union {
ASCEEP_CONFIG asc_eep; /* Narrow EEPROM config. */
ADVEEP_3550_CONFIG adv_3550_eep; /* 3550 EEPROM config. */
ADVEEP_38C0800_CONFIG adv_38C0800_eep; /* 38C0800 EEPROM config. */
ADVEEP_38C1600_CONFIG adv_38C1600_eep; /* 38C1600 EEPROM config. */
} eep_config;
ulong last_reset; /* Saved last reset time */
spinlock_t lock; /* Board spinlock */
#ifdef CONFIG_PROC_FS
/* /proc/scsi/advansys/[0...] */
char *prtbuf; /* /proc print buffer */
#endif /* CONFIG_PROC_FS */
#ifdef ADVANSYS_STATS
struct asc_stats asc_stats; /* Board statistics */
#endif /* ADVANSYS_STATS */
/*
* The following fields are used only for Narrow Boards.
*/
/* The following three structures must be in DMA-able memory. */
ASC_SCSI_REQ_Q scsireqq;
ASC_CAP_INFO cap_info;
ASC_SCSI_INQUIRY inquiry;
uchar sdtr_data[ASC_MAX_TID+1]; /* SDTR information */
/*
* The following fields are used only for Wide Boards.
*/
void *ioremap_addr; /* I/O Memory remap address. */
ushort ioport; /* I/O Port address. */
ADV_CARR_T *orig_carrp; /* ADV_CARR_T memory block. */
adv_req_t *orig_reqp; /* adv_req_t memory block. */
adv_req_t *adv_reqp; /* Request structures. */
adv_sgblk_t *adv_sgblkp; /* Scatter-gather structures. */
ushort bios_signature; /* BIOS Signature. */
ushort bios_version; /* BIOS Version. */
ushort bios_codeseg; /* BIOS Code Segment. */
ushort bios_codelen; /* BIOS Code Segment Length. */
} asc_board_t;
/*
* PCI configuration structures
*/
typedef struct _PCI_DATA_
{
uchar type;
uchar bus;
uchar slot;
uchar func;
uchar offset;
} PCI_DATA;
typedef struct _PCI_DEVICE_
{
ushort vendorID;
ushort deviceID;
ushort slotNumber;
ushort slotFound;
uchar busNumber;
uchar maxBusNumber;
uchar devFunc;
ushort startSlot;
ushort endSlot;
uchar bridge;
uchar type;
} PCI_DEVICE;
typedef struct _PCI_CONFIG_SPACE_
{
ushort vendorID;
ushort deviceID;
ushort command;
ushort status;
uchar revision;
uchar classCode[3];
uchar cacheSize;
uchar latencyTimer;
uchar headerType;
uchar bist;
ADV_PADDR baseAddress[6];
ushort reserved[4];
ADV_PADDR optionRomAddr;
ushort reserved2[4];
uchar irqLine;
uchar irqPin;
uchar minGnt;
uchar maxLatency;
} PCI_CONFIG_SPACE;
/*
* --- Driver Data
*/
/* Note: All driver global data should be initialized. */
#if ASC_LINUX_KERNEL22
#ifdef CONFIG_PROC_FS
struct proc_dir_entry proc_scsi_advansys =
{
PROC_SCSI_ADVANSYS, /* unsigned short low_ino */
8, /* unsigned short namelen */
"advansys", /* const char *name */
S_IFDIR | S_IRUGO | S_IXUGO, /* mode_t mode */
2 /* nlink_t nlink */
};
#endif /* CONFIG_PROC_FS */
#endif /* ASC_LINUX_KERNEL22 */
/* Number of boards detected in system. */
STATIC int asc_board_count = 0;
STATIC struct Scsi_Host *asc_host[ASC_NUM_BOARD_SUPPORTED] = { 0 };
/* Overrun buffer used by all narrow boards. */
STATIC uchar overrun_buf[ASC_OVERRUN_BSIZE] = { 0 };
/*
* Global structures required to issue a command.
*/
STATIC ASC_SCSI_Q asc_scsi_q = { { 0 } };
STATIC ASC_SG_HEAD asc_sg_head = { 0 };
/* List of supported bus types. */
STATIC ushort asc_bus[ASC_NUM_BUS] ASC_INITDATA = {
ASC_IS_ISA,
ASC_IS_VL,
ASC_IS_EISA,
ASC_IS_PCI,
};
/*
* Used with the LILO 'advansys' option to eliminate or
* limit I/O port probing at boot time, cf. advansys_setup().
*/
STATIC int asc_iopflag = ASC_FALSE;
STATIC int asc_ioport[ASC_NUM_IOPORT_PROBE] = { 0, 0, 0, 0 };
#ifdef ADVANSYS_DEBUG
STATIC char *
asc_bus_name[ASC_NUM_BUS] = {
"ASC_IS_ISA",
"ASC_IS_VL",
"ASC_IS_EISA",
"ASC_IS_PCI",
};
STATIC int asc_dbglvl = 3;
#endif /* ADVANSYS_DEBUG */
/* Declaration for Asc Library internal data referenced by driver. */
STATIC PortAddr _asc_def_iop_base[];
/*
* --- Driver Function Prototypes
*
* advansys.h contains function prototypes for functions global to Linux.
*/
STATIC void advansys_interrupt(int, void *, struct pt_regs *);
STATIC void advansys_select_queue_depths(struct Scsi_Host *,
Scsi_Device *);
STATIC void asc_scsi_done_list(Scsi_Cmnd *);
STATIC int asc_execute_scsi_cmnd(Scsi_Cmnd *);
STATIC int asc_build_req(asc_board_t *, Scsi_Cmnd *);
STATIC int adv_build_req(asc_board_t *, Scsi_Cmnd *, ADV_SCSI_REQ_Q **);
STATIC int adv_get_sglist(asc_board_t *, adv_req_t *, Scsi_Cmnd *);
STATIC void asc_isr_callback(ASC_DVC_VAR *, ASC_QDONE_INFO *);
STATIC void adv_isr_callback(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *);
STATIC void adv_async_callback(ADV_DVC_VAR *, uchar);
STATIC void asc_enqueue(asc_queue_t *, REQP, int);
STATIC REQP asc_dequeue(asc_queue_t *, int);
STATIC REQP asc_dequeue_list(asc_queue_t *, REQP *, int);
STATIC int asc_rmqueue(asc_queue_t *, REQP);
STATIC void asc_execute_queue(asc_queue_t *);
#ifdef CONFIG_PROC_FS
STATIC int asc_proc_copy(off_t, off_t, char *, int , char *, int);
STATIC int asc_prt_board_devices(struct Scsi_Host *, char *, int);
STATIC int asc_prt_adv_bios(struct Scsi_Host *, char *, int);
STATIC int asc_get_eeprom_string(ushort *serialnum, uchar *cp);
STATIC int asc_prt_asc_board_eeprom(struct Scsi_Host *, char *, int);
STATIC int asc_prt_adv_board_eeprom(struct Scsi_Host *, char *, int);
STATIC int asc_prt_driver_conf(struct Scsi_Host *, char *, int);
STATIC int asc_prt_asc_board_info(struct Scsi_Host *, char *, int);
STATIC int asc_prt_adv_board_info(struct Scsi_Host *, char *, int);
STATIC int asc_prt_line(char *, int, char *fmt, ...);
#endif /* CONFIG_PROC_FS */
/* Declaration for Asc Library internal functions referenced by driver. */
STATIC int AscFindSignature(PortAddr);
STATIC ushort AscGetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort);
/* Statistics function prototypes. */
#ifdef ADVANSYS_STATS
#ifdef CONFIG_PROC_FS
STATIC int asc_prt_board_stats(struct Scsi_Host *, char *, int);
STATIC int asc_prt_target_stats(struct Scsi_Host *, int, char *, int);
#endif /* CONFIG_PROC_FS */
#endif /* ADVANSYS_STATS */
/* Debug function prototypes. */
#ifdef ADVANSYS_DEBUG
STATIC void asc_prt_scsi_host(struct Scsi_Host *);
STATIC void asc_prt_scsi_cmnd(Scsi_Cmnd *);
STATIC void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *);
STATIC void asc_prt_asc_dvc_var(ASC_DVC_VAR *);
STATIC void asc_prt_asc_scsi_q(ASC_SCSI_Q *);
STATIC void asc_prt_asc_qdone_info(ASC_QDONE_INFO *);
STATIC void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *);
STATIC void asc_prt_adv_dvc_var(ADV_DVC_VAR *);
STATIC void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *);
STATIC void asc_prt_adv_sgblock(int, ADV_SG_BLOCK *);
STATIC void asc_prt_hex(char *f, uchar *, int);
#endif /* ADVANSYS_DEBUG */
/*
* --- Linux 'Scsi_Host_Template' and advansys_setup() Functions
*/
#ifdef CONFIG_PROC_FS
/*
* advansys_proc_info() - /proc/scsi/advansys/[0-(ASC_NUM_BOARD_SUPPORTED-1)]
*
* *buffer: I/O buffer
* **start: if inout == FALSE pointer into buffer where user read should start
* offset: current offset into a /proc/scsi/advansys/[0...] file
* length: length of buffer
* hostno: Scsi_Host host_no
* inout: TRUE - user is writing; FALSE - user is reading
*
* Return the number of bytes read from or written to a
* /proc/scsi/advansys/[0...] file.
*
* Note: This function uses the per board buffer 'prtbuf' which is
* allocated when the board is initialized in advansys_detect(). The
* buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is
* used to write to the buffer. The way asc_proc_copy() is written
* if 'prtbuf' is too small it will not be overwritten. Instead the
* user just won't get all the available statistics.
*/
int
advansys_proc_info(char *buffer, char **start, off_t offset, int length,
int hostno, int inout)
{
struct Scsi_Host *shp;
asc_board_t *boardp;
int i;
char *cp;
int cplen;
int cnt;
int totcnt;
int leftlen;
char *curbuf;
off_t advoffset;
Scsi_Device *scd;
#ifdef ADVANSYS_STATS
int tgt_id;
#endif /* ADVANSYS_STATS */
ASC_DBG(1, "advansys_proc_info: beginn");
/*
* User write not supported.
*/
if (inout == TRUE) {
return(-ENOSYS);
}
/*
* User read of /proc/scsi/advansys/[0...] file.
*/
/* Find the specified board. */
for (i = 0; i < asc_board_count; i++) {
if (asc_host[i]->host_no == hostno) {
break;
}
}
if (i == asc_board_count) {
return(-ENOENT);
}
shp = asc_host[i];
boardp = ASC_BOARDP(shp);
/* Copy read data starting at the beginning of the buffer. */
*start = buffer;
curbuf = buffer;
advoffset = 0;
totcnt = 0;
leftlen = length;
/*
* Get board configuration information.
*
* advansys_info() returns the board string from its own static buffer.
*/
cp = (char *) advansys_info(shp);
strcat(cp, "n");
cplen = strlen(cp);
/* Copy board information. */
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
/*
* Display Wide Board BIOS Information.
*/
if (ASC_WIDE_BOARD(boardp)) {
cp = boardp->prtbuf;
cplen = asc_prt_adv_bios(shp, cp, ASC_PRTBUF_SIZE);
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
}
/*
* Display driver information for each device attached to the board.
*/
cp = boardp->prtbuf;
cplen = asc_prt_board_devices(shp, cp, ASC_PRTBUF_SIZE);
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
/*
* Display target driver information for each device attached
* to the board.
*/
for (scd = shp->host_queue; scd; scd = scd->next)
{
if (scd->host == shp) {
cp = boardp->prtbuf;
/*
* Note: If proc_print_scsidevice() writes more than
* ASC_PRTBUF_SIZE bytes, it will overrun 'prtbuf'.
*/
proc_print_scsidevice(scd, cp, &cplen, 0);
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
}
}
/*
* Display EEPROM configuration for the board.
*/
cp = boardp->prtbuf;
if (ASC_NARROW_BOARD(boardp)) {
cplen = asc_prt_asc_board_eeprom(shp, cp, ASC_PRTBUF_SIZE);
} else {
cplen = asc_prt_adv_board_eeprom(shp, cp, ASC_PRTBUF_SIZE);
}
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
/*
* Display driver configuration and information for the board.
*/
cp = boardp->prtbuf;
cplen = asc_prt_driver_conf(shp, cp, ASC_PRTBUF_SIZE);
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
#ifdef ADVANSYS_STATS
/*
* Display driver statistics for the board.
*/
cp = boardp->prtbuf;
cplen = asc_prt_board_stats(shp, cp, ASC_PRTBUF_SIZE);
ASC_ASSERT(cplen <= ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
/*
* Display driver statistics for each target.
*/
for (tgt_id = 0; tgt_id <= ADV_MAX_TID; tgt_id++) {
cp = boardp->prtbuf;
cplen = asc_prt_target_stats(shp, tgt_id, cp, ASC_PRTBUF_SIZE);
ASC_ASSERT(cplen <= ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
}
#endif /* ADVANSYS_STATS */
/*
* Display Asc Library dynamic configuration information
* for the board.
*/
cp = boardp->prtbuf;
if (ASC_NARROW_BOARD(boardp)) {
cplen = asc_prt_asc_board_info(shp, cp, ASC_PRTBUF_SIZE);
} else {
cplen = asc_prt_adv_board_info(shp, cp, ASC_PRTBUF_SIZE);
}
ASC_ASSERT(cplen < ASC_PRTBUF_SIZE);
cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen);
totcnt += cnt;
leftlen -= cnt;
if (leftlen == 0) {
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
advoffset += cplen;
curbuf += cnt;
ASC_DBG1(1, "advansys_proc_info: totcnt %dn", totcnt);
return totcnt;
}
#endif /* CONFIG_PROC_FS */
/*
* advansys_detect()
*
* Detect function for AdvanSys adapters.
*
* Argument is a pointer to the host driver's scsi_hosts entry.
*
* Return number of adapters found.
*
* Note: Because this function is called during system initialization
* it must not call SCSI mid-level functions including scsi_malloc()
* and scsi_free().
*/
ASC_INITFUNC(
int,
advansys_detect(Scsi_Host_Template *tpnt)
)
{
static int detect_called = ASC_FALSE;
int iop;
int bus;
struct Scsi_Host *shp = NULL;
asc_board_t *boardp = NULL;
ASC_DVC_VAR *asc_dvc_varp = NULL;
ADV_DVC_VAR *adv_dvc_varp = NULL;
adv_sgblk_t *sgp = NULL;
int ioport = 0;
int share_irq = FALSE;
int iolen = 0;
#ifdef CONFIG_PCI
int pci_init_search = 0;
struct pci_dev *pci_devicep[ASC_NUM_BOARD_SUPPORTED];
int pci_card_cnt_max = 0;
int pci_card_cnt = 0;
struct pci_dev *pci_devp = NULL;
int pci_device_id_cnt = 0;
unsigned int pci_device_id[ASC_PCI_DEVICE_ID_CNT] = {
ASC_PCI_DEVICE_ID_1100,
ASC_PCI_DEVICE_ID_1200,
ASC_PCI_DEVICE_ID_1300,
ASC_PCI_DEVICE_ID_2300,
ASC_PCI_DEVICE_ID_2500,
ASC_PCI_DEVICE_ID_2700
};
ADV_PADDR pci_memory_address;
#endif /* CONFIG_PCI */
int warn_code, err_code;
int ret;
if (detect_called == ASC_FALSE) {
detect_called = ASC_TRUE;
} else {
printk("AdvanSys SCSI: advansys_detect() multiple calls ignoredn");
return 0;
}
ASC_DBG(1, "advansys_detect: beginn");
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level detect entrypoint.
*/
ASC_UNLOCK_IO_REQUEST_LOCK
#if ASC_LINUX_KERNEL24
tpnt->proc_name = "advansys";
#elif ASC_LINUX_KERNEL22
tpnt->proc_dir = &proc_scsi_advansys;
#endif
asc_board_count = 0;
/*
* If I/O port probing has been modified, then verify and
* clean-up the 'asc_ioport' list.
*/
if (asc_iopflag == ASC_TRUE) {
for (ioport = 0; ioport < ASC_NUM_IOPORT_PROBE; ioport++) {
ASC_DBG2(1, "advansys_detect: asc_ioport[%d] 0x%xn",
ioport, asc_ioport[ioport]);
if (asc_ioport[ioport] != 0) {
for (iop = 0; iop < ASC_IOADR_TABLE_MAX_IX; iop++) {
if (_asc_def_iop_base[iop] == asc_ioport[ioport]) {
break;
}
}
if (iop == ASC_IOADR_TABLE_MAX_IX) {
printk(
"AdvanSys SCSI: specified I/O Port 0x%X is invalidn",
asc_ioport[ioport]);
asc_ioport[ioport] = 0;
}
}
}
ioport = 0;
}
for (bus = 0; bus < ASC_NUM_BUS; bus++) {
ASC_DBG2(1, "advansys_detect: bus search type %d (%s)n",
bus, asc_bus_name[bus]);
iop = 0;
while (asc_board_count < ASC_NUM_BOARD_SUPPORTED) {
ASC_DBG1(2, "advansys_detect: asc_board_count %dn",
asc_board_count);
switch (asc_bus[bus]) {
case ASC_IS_ISA:
case ASC_IS_VL:
#ifdef CONFIG_ISA
if (asc_iopflag == ASC_FALSE) {
iop = AscSearchIOPortAddr(iop, asc_bus[bus]);
} else {
/*
* ISA and VL I/O port scanning has either been
* eliminated or limited to selected ports on
* the LILO command line, /etc/lilo.conf, or
* by setting variables when the module was loaded.
*/
ASC_DBG(1, "advansys_detect: I/O port scanning modifiedn");
ioport_try_again:
iop = 0;
for (; ioport < ASC_NUM_IOPORT_PROBE; ioport++) {
if ((iop = asc_ioport[ioport]) != 0) {
break;
}
}
if (iop) {
ASC_DBG1(1,
"advansys_detect: probing I/O port 0x%x...n",
iop);
if (check_region(iop, ASC_IOADR_GAP) != 0) {
printk(
"AdvanSys SCSI: specified I/O Port 0x%X is busyn", iop);
/* Don't try this I/O port twice. */
asc_ioport[ioport] = 0;
goto ioport_try_again;
} else if (AscFindSignature(iop) == ASC_FALSE) {
printk(
"AdvanSys SCSI: specified I/O Port 0x%X has no adaptern", iop);
/* Don't try this I/O port twice. */
asc_ioport[ioport] = 0;
goto ioport_try_again;
} else {
/*
* If this isn't an ISA board, then it must be
* a VL board. If currently looking an ISA
* board is being looked for then try for
* another ISA board in 'asc_ioport'.
*/
if (asc_bus[bus] == ASC_IS_ISA &&
(AscGetChipVersion(iop, ASC_IS_ISA) &
ASC_CHIP_VER_ISA_BIT) == 0) {
/*
* Don't clear 'asc_ioport[ioport]'. Try
* this board again for VL. Increment
* 'ioport' past this board.
*/
ioport++;
goto ioport_try_again;
}
}
/*
* This board appears good, don't try the I/O port
* again by clearing its value. Increment 'ioport'
* for the next iteration.
*/
asc_ioport[ioport++] = 0;
}
}
#endif /* CONFIG_ISA */
break;
case ASC_IS_EISA:
#ifdef CONFIG_ISA
iop = AscSearchIOPortAddr(iop, asc_bus[bus]);
#endif /* CONFIG_ISA */
break;
case ASC_IS_PCI:
#ifdef CONFIG_PCI
if (pci_init_search == 0) {
int i, j;
pci_init_search = 1;
/* Find all PCI cards. */
while (pci_device_id_cnt < ASC_PCI_DEVICE_ID_CNT) {
if ((pci_devp = pci_find_device(ASC_PCI_VENDORID,
pci_device_id[pci_device_id_cnt], pci_devp)) ==
NULL) {
pci_device_id_cnt++;
} else {
#if ASC_LINUX_KERNEL24
if (pci_enable_device(pci_devp) == 0) {
pci_devicep[pci_card_cnt_max++] = pci_devp;
}
#elif ASC_LINUX_KERNEL22
pci_devicep[pci_card_cnt_max++] = pci_devp;
#endif
}
}
/*
* Sort PCI cards in ascending order by PCI Bus, Slot,
* and Device Number.
*/
for (i = 0; i < pci_card_cnt_max - 1; i++)
{
for (j = i + 1; j < pci_card_cnt_max; j++) {
if ((pci_devicep[j]->bus->number <
pci_devicep[i]->bus->number) ||
((pci_devicep[j]->bus->number ==
pci_devicep[i]->bus->number) &&
(pci_devicep[j]->devfn <
pci_devicep[i]->devfn))) {
pci_devp = pci_devicep[i];
pci_devicep[i] = pci_devicep[j];
pci_devicep[j] = pci_devp;
}
}
}
pci_card_cnt = 0;
} else {
pci_card_cnt++;
}
if (pci_card_cnt == pci_card_cnt_max) {
iop = 0;
} else {
pci_devp = pci_devicep[pci_card_cnt];
ASC_DBG2(2,
"advansys_detect: devfn %d, bus number %dn",
pci_devp->devfn, pci_devp->bus->number);
#if ASC_LINUX_KERNEL24
iop = pci_resource_start(pci_devp, 0);
#elif ASC_LINUX_KERNEL22
iop = pci_devp->base_address[0] & PCI_IOADDRESS_MASK;
#endif
ASC_DBG2(1,
"advansys_detect: vendorID %X, deviceID %Xn",
pci_devp->vendor, pci_devp->device);
ASC_DBG2(2, "advansys_detect: iop %X, irqLine %dn",
iop, pci_devp->irq);
}
#endif /* CONFIG_PCI */
break;
default:
ASC_PRINT1("advansys_detect: unknown bus type: %dn",
asc_bus[bus]);
break;
}
ASC_DBG1(1, "advansys_detect: iop 0x%xn", iop);
/*
* Adapter not found, try next bus type.
*/
if (iop == 0) {
break;
}
/*
* Adapter found.
*
* Register the adapter, get its configuration, and
* initialize it.
*/
ASC_DBG(2, "advansys_detect: scsi_register()n");
shp = scsi_register(tpnt, sizeof(asc_board_t));
if (shp == NULL) {
continue;
}
#ifdef CONFIG_PCI
scsi_set_pci_device(shp, pci_devp);
#endif
/* Save a pointer to the Scsi_host of each board found. */
asc_host[asc_board_count++] = shp;
/* Initialize private per board data */
boardp = ASC_BOARDP(shp);
memset(boardp, 0, sizeof(asc_board_t));
boardp->id = asc_board_count - 1;
/* Initialize spinlock. */
boardp->lock = SPIN_LOCK_UNLOCKED;
/*
* Handle both narrow and wide boards.
*
* If a Wide board was detected, set the board structure
* wide board flag. Set-up the board structure based on
* the board type.
*/
#ifdef CONFIG_PCI
if (asc_bus[bus] == ASC_IS_PCI &&
(pci_devp->device == ASC_PCI_DEVICE_ID_2300 ||
pci_devp->device == ASC_PCI_DEVICE_ID_2500 ||
pci_devp->device == ASC_PCI_DEVICE_ID_2700))
{
boardp->flags |= ASC_IS_WIDE_BOARD;
}
#endif /* CONFIG_PCI */
if (ASC_NARROW_BOARD(boardp)) {
ASC_DBG(1, "advansys_detect: narrow boardn");
asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
asc_dvc_varp->bus_type = asc_bus[bus];
asc_dvc_varp->drv_ptr = boardp;
asc_dvc_varp->cfg = &boardp->dvc_cfg.asc_dvc_cfg;
asc_dvc_varp->cfg->overrun_buf = &overrun_buf[0];
asc_dvc_varp->iop_base = iop;
asc_dvc_varp->isr_callback = asc_isr_callback;
} else {
ASC_DBG(1, "advansys_detect: wide boardn");
adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
adv_dvc_varp->drv_ptr = boardp;
adv_dvc_varp->cfg = &boardp->dvc_cfg.adv_dvc_cfg;
adv_dvc_varp->isr_callback = adv_isr_callback;
adv_dvc_varp->async_callback = adv_async_callback;
#ifdef CONFIG_PCI
if (pci_devp->device == ASC_PCI_DEVICE_ID_2300)
{
ASC_DBG(1, "advansys_detect: ASC-3550n");
adv_dvc_varp->chip_type = ADV_CHIP_ASC3550;
} else if (pci_devp->device == ASC_PCI_DEVICE_ID_2500)
{
ASC_DBG(1, "advansys_detect: ASC-38C0800n");
adv_dvc_varp->chip_type = ADV_CHIP_ASC38C0800;
} else
{
ASC_DBG(1, "advansys_detect: ASC-38C1600n");
adv_dvc_varp->chip_type = ADV_CHIP_ASC38C1600;
}
#endif /* CONFIG_PCI */
/*
* Map the board's registers into virtual memory for
* PCI slave access. Only memory accesses are used to
* access the board's registers.
*
* Note: The PCI register base address is not always
* page aligned, but the address passed to ioremap()
* must be page aligned. It is guaranteed that the
* PCI register base address will not cross a page
* boundary.
*/
if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550)
{
iolen = ADV_3550_IOLEN;
} else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800)
{
iolen = ADV_38C0800_IOLEN;
} else
{
iolen = ADV_38C1600_IOLEN;
}
#ifdef CONFIG_PCI
#if ASC_LINUX_KERNEL24
pci_memory_address = pci_resource_start(pci_devp, 1);
#elif ASC_LINUX_KERNEL22
pci_memory_address = pci_devp->base_address[1];
#endif
ASC_DBG1(1, "advansys_detect: pci_memory_address: 0x%lxn",
(ulong) pci_memory_address);
if ((boardp->ioremap_addr =
ioremap(pci_memory_address & PAGE_MASK,
PAGE_SIZE)) == 0) {
ASC_PRINT3(
"advansys_detect: board %d: ioremap(%x, %d) returned NULLn",
boardp->id, pci_memory_address, iolen);
scsi_unregister(shp);
asc_board_count--;
continue;
}
ASC_DBG1(1, "advansys_detect: ioremap_addr: 0x%lxn",
(ulong) boardp->ioremap_addr);
adv_dvc_varp->iop_base = (AdvPortAddr)
(boardp->ioremap_addr +
(pci_memory_address - (pci_memory_address & PAGE_MASK)));
ASC_DBG1(1, "advansys_detect: iop_base: 0x%lxn",
adv_dvc_varp->iop_base);
#endif /* CONFIG_PCI */
/*
* Even though it isn't used to access wide boards, other
* than for the debug line below, save I/O Port address so
* that it can be reported.
*/
boardp->ioport = iop;
ASC_DBG2(1,
"advansys_detect: iopb_chip_id_1 0x%x, iopw_chip_id_0 0x%xn",
(ushort) inp(iop + 1), (ushort) inpw(iop));
}
#ifdef CONFIG_PROC_FS
/*
* Allocate buffer for printing information from
* /proc/scsi/advansys/[0...].
*/
if ((boardp->prtbuf =
kmalloc(ASC_PRTBUF_SIZE, GFP_ATOMIC)) == NULL) {
ASC_PRINT3(
"advansys_detect: board %d: kmalloc(%d, %d) returned NULLn",
boardp->id, ASC_PRTBUF_SIZE, GFP_ATOMIC);
scsi_unregister(shp);
asc_board_count--;
continue;
}
#endif /* CONFIG_PROC_FS */
if (ASC_NARROW_BOARD(boardp)) {
/*
* Set the board bus type and PCI IRQ before
* calling AscInitGetConfig().
*/
switch (asc_dvc_varp->bus_type) {
#ifdef CONFIG_ISA
case ASC_IS_ISA:
shp->unchecked_isa_dma = TRUE;
share_irq = FALSE;
break;
case ASC_IS_VL:
shp->unchecked_isa_dma = FALSE;
share_irq = FALSE;
break;
case ASC_IS_EISA:
shp->unchecked_isa_dma = FALSE;
share_irq = TRUE;
break;
#endif /* CONFIG_ISA */
#ifdef CONFIG_PCI
case ASC_IS_PCI:
shp->irq = asc_dvc_varp->irq_no = pci_devp->irq;
asc_dvc_varp->cfg->pci_device_id = pci_devp->device;
asc_dvc_varp->cfg->pci_slot_info =
ASC_PCI_MKID(pci_devp->bus->number,
PCI_SLOT(pci_devp->devfn),
PCI_FUNC(pci_devp->devfn));
shp->unchecked_isa_dma = FALSE;
share_irq = TRUE;
break;
#endif /* CONFIG_PCI */
default:
ASC_PRINT2(
"advansys_detect: board %d: unknown adapter type: %dn",
boardp->id, asc_dvc_varp->bus_type);
shp->unchecked_isa_dma = TRUE;
share_irq = FALSE;
break;
}
} else {
/*
* For Wide boards set PCI information before calling
* AdvInitGetConfig().
*/
#ifdef CONFIG_PCI
shp->irq = adv_dvc_varp->irq_no = pci_devp->irq;
adv_dvc_varp->cfg->pci_device_id = pci_devp->device;
adv_dvc_varp->cfg->pci_slot_info =
ASC_PCI_MKID(pci_devp->bus->number,
PCI_SLOT(pci_devp->devfn),
PCI_FUNC(pci_devp->devfn));
shp->unchecked_isa_dma = FALSE;
share_irq = TRUE;
#endif /* CONFIG_PCI */
}
/*
* Read the board configuration.
*/
if (ASC_NARROW_BOARD(boardp)) {
/*
* NOTE: AscInitGetConfig() may change the board's
* bus_type value. The asc_bus[bus] value should no
* longer be used. If the bus_type field must be
* referenced only use the bit-wise AND operator "&".
*/
ASC_DBG(2, "advansys_detect: AscInitGetConfig()n");
switch(ret = AscInitGetConfig(asc_dvc_varp)) {
case 0: /* No error */
break;
case ASC_WARN_IO_PORT_ROTATE:
ASC_PRINT1(
"AscInitGetConfig: board %d: I/O port address modifiedn",
boardp->id);
break;
case ASC_WARN_AUTO_CONFIG:
ASC_PRINT1(
"AscInitGetConfig: board %d: I/O port increment switch enabledn",
boardp->id);
break;
case ASC_WARN_EEPROM_CHKSUM:
ASC_PRINT1(
"AscInitGetConfig: board %d: EEPROM checksum errorn",
boardp->id);
break;
case ASC_WARN_IRQ_MODIFIED:
ASC_PRINT1(
"AscInitGetConfig: board %d: IRQ modifiedn",
boardp->id);
break;
case ASC_WARN_CMD_QNG_CONFLICT:
ASC_PRINT1(
"AscInitGetConfig: board %d: tag queuing enabled w/o disconnectsn",
boardp->id);
break;
default:
ASC_PRINT2(
"AscInitGetConfig: board %d: unknown warning: 0x%xn",
boardp->id, ret);
break;
}
if ((err_code = asc_dvc_varp->err_code) != 0) {
ASC_PRINT3(
"AscInitGetConfig: board %d error: init_state 0x%x, err_code 0x%xn",
boardp->id, asc_dvc_varp->init_state,
asc_dvc_varp->err_code);
}
} else {
ASC_DBG(2, "advansys_detect: AdvInitGetConfig()n");
if ((ret = AdvInitGetConfig(adv_dvc_varp)) != 0) {
ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%xn",
boardp->id, ret);
}
if ((err_code = adv_dvc_varp->err_code) != 0) {
ASC_PRINT2(
"AdvInitGetConfig: board %d error: err_code 0x%xn",
boardp->id, adv_dvc_varp->err_code);
}
}
if (err_code != 0) {
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
asc_board_count--;
continue;
}
/*
* Save the EEPROM configuration so that it can be displayed
* from /proc/scsi/advansys/[0...].
*/
if (ASC_NARROW_BOARD(boardp)) {
ASCEEP_CONFIG *ep;
/*
* Set the adapter's target id bit in the 'init_tidmask' field.
*/
boardp->init_tidmask |=
ADV_TID_TO_TIDMASK(asc_dvc_varp->cfg->chip_scsi_id);
/*
* Save EEPROM settings for the board.
*/
ep = &boardp->eep_config.asc_eep;
ep->init_sdtr = asc_dvc_varp->cfg->sdtr_enable;
ep->disc_enable = asc_dvc_varp->cfg->disc_enable;
ep->use_cmd_qng = asc_dvc_varp->cfg->cmd_qng_enabled;
ASC_EEP_SET_DMA_SPD(ep, asc_dvc_varp->cfg->isa_dma_speed);
ep->start_motor = asc_dvc_varp->start_motor;
ep->cntl = asc_dvc_varp->dvc_cntl;
ep->no_scam = asc_dvc_varp->no_scam;
ep->max_total_qng = asc_dvc_varp->max_total_qng;
ASC_EEP_SET_CHIP_ID(ep, asc_dvc_varp->cfg->chip_scsi_id);
/* 'max_tag_qng' is set to the same value for every device. */
ep->max_tag_qng = asc_dvc_varp->cfg->max_tag_qng[0];
ep->adapter_info[0] = asc_dvc_varp->cfg->adapter_info[0];
ep->adapter_info[1] = asc_dvc_varp->cfg->adapter_info[1];
ep->adapter_info[2] = asc_dvc_varp->cfg->adapter_info[2];
ep->adapter_info[3] = asc_dvc_varp->cfg->adapter_info[3];
ep->adapter_info[4] = asc_dvc_varp->cfg->adapter_info[4];
ep->adapter_info[5] = asc_dvc_varp->cfg->adapter_info[5];
ep->adapter_info[6] = asc_dvc_varp->cfg->adapter_info[6];
/*
* Modify board configuration.
*/
ASC_DBG(2, "advansys_detect: AscInitSetConfig()n");
switch (ret = AscInitSetConfig(asc_dvc_varp)) {
case 0: /* No error. */
break;
case ASC_WARN_IO_PORT_ROTATE:
ASC_PRINT1(
"AscInitSetConfig: board %d: I/O port address modifiedn",
boardp->id);
break;
case ASC_WARN_AUTO_CONFIG:
ASC_PRINT1(
"AscInitSetConfig: board %d: I/O port increment switch enabledn",
boardp->id);
break;
case ASC_WARN_EEPROM_CHKSUM:
ASC_PRINT1(
"AscInitSetConfig: board %d: EEPROM checksum errorn",
boardp->id);
break;
case ASC_WARN_IRQ_MODIFIED:
ASC_PRINT1(
"AscInitSetConfig: board %d: IRQ modifiedn",
boardp->id);
break;
case ASC_WARN_CMD_QNG_CONFLICT:
ASC_PRINT1(
"AscInitSetConfig: board %d: tag queuing w/o disconnectsn",
boardp->id);
break;
default:
ASC_PRINT2(
"AscInitSetConfig: board %d: unknown warning: 0x%xn",
boardp->id, ret);
break;
}
if (asc_dvc_varp->err_code != 0) {
ASC_PRINT3(
"AscInitSetConfig: board %d error: init_state 0x%x, err_code 0x%xn",
boardp->id, asc_dvc_varp->init_state,
asc_dvc_varp->err_code);
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
asc_board_count--;
continue;
}
/*
* Finish initializing the 'Scsi_Host' structure.
*/
/* AscInitSetConfig() will set the IRQ for non-PCI boards. */
if ((asc_dvc_varp->bus_type & ASC_IS_PCI) == 0) {
shp->irq = asc_dvc_varp->irq_no;
}
} else {
ADVEEP_3550_CONFIG *ep_3550;
ADVEEP_38C0800_CONFIG *ep_38C0800;
ADVEEP_38C1600_CONFIG *ep_38C1600;
/*
* Save Wide EEP Configuration Information.
*/
if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550)
{
ep_3550 = &boardp->eep_config.adv_3550_eep;
ep_3550->adapter_scsi_id = adv_dvc_varp->chip_scsi_id;
ep_3550->max_host_qng = adv_dvc_varp->max_host_qng;
ep_3550->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
ep_3550->termination = adv_dvc_varp->cfg->termination;
ep_3550->disc_enable = adv_dvc_varp->cfg->disc_enable;
ep_3550->bios_ctrl = adv_dvc_varp->bios_ctrl;
ep_3550->wdtr_able = adv_dvc_varp->wdtr_able;
ep_3550->sdtr_able = adv_dvc_varp->sdtr_able;
ep_3550->ultra_able = adv_dvc_varp->ultra_able;
ep_3550->tagqng_able = adv_dvc_varp->tagqng_able;
ep_3550->start_motor = adv_dvc_varp->start_motor;
ep_3550->scsi_reset_delay = adv_dvc_varp->scsi_reset_wait;
ep_3550->serial_number_word1 =
adv_dvc_varp->cfg->serial1;
ep_3550->serial_number_word2 =
adv_dvc_varp->cfg->serial2;
ep_3550->serial_number_word3 =
adv_dvc_varp->cfg->serial3;
} else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800)
{
ep_38C0800 = &boardp->eep_config.adv_38C0800_eep;
ep_38C0800->adapter_scsi_id = adv_dvc_varp->chip_scsi_id;
ep_38C0800->max_host_qng = adv_dvc_varp->max_host_qng;
ep_38C0800->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
ep_38C0800->termination_lvd =
adv_dvc_varp->cfg->termination;
ep_38C0800->disc_enable = adv_dvc_varp->cfg->disc_enable;
ep_38C0800->bios_ctrl = adv_dvc_varp->bios_ctrl;
ep_38C0800->wdtr_able = adv_dvc_varp->wdtr_able;
ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able;
ep_38C0800->sdtr_speed1 = adv_dvc_varp->sdtr_speed1;
ep_38C0800->sdtr_speed2 = adv_dvc_varp->sdtr_speed2;
ep_38C0800->sdtr_speed3 = adv_dvc_varp->sdtr_speed3;
ep_38C0800->sdtr_speed4 = adv_dvc_varp->sdtr_speed4;
ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able;
ep_38C0800->start_motor = adv_dvc_varp->start_motor;
ep_38C0800->scsi_reset_delay =
adv_dvc_varp->scsi_reset_wait;
ep_38C0800->serial_number_word1 =
adv_dvc_varp->cfg->serial1;
ep_38C0800->serial_number_word2 =
adv_dvc_varp->cfg->serial2;
ep_38C0800->serial_number_word3 =
adv_dvc_varp->cfg->serial3;
} else
{
ep_38C1600 = &boardp->eep_config.adv_38C1600_eep;
ep_38C1600->adapter_scsi_id = adv_dvc_varp->chip_scsi_id;
ep_38C1600->max_host_qng = adv_dvc_varp->max_host_qng;
ep_38C1600->max_dvc_qng = adv_dvc_varp->max_dvc_qng;
ep_38C1600->termination_lvd =
adv_dvc_varp->cfg->termination;
ep_38C1600->disc_enable = adv_dvc_varp->cfg->disc_enable;
ep_38C1600->bios_ctrl = adv_dvc_varp->bios_ctrl;
ep_38C1600->wdtr_able = adv_dvc_varp->wdtr_able;
ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able;
ep_38C1600->sdtr_speed1 = adv_dvc_varp->sdtr_speed1;
ep_38C1600->sdtr_speed2 = adv_dvc_varp->sdtr_speed2;
ep_38C1600->sdtr_speed3 = adv_dvc_varp->sdtr_speed3;
ep_38C1600->sdtr_speed4 = adv_dvc_varp->sdtr_speed4;
ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able;
ep_38C1600->start_motor = adv_dvc_varp->start_motor;
ep_38C1600->scsi_reset_delay =
adv_dvc_varp->scsi_reset_wait;
ep_38C1600->serial_number_word1 =
adv_dvc_varp->cfg->serial1;
ep_38C1600->serial_number_word2 =
adv_dvc_varp->cfg->serial2;
ep_38C1600->serial_number_word3 =
adv_dvc_varp->cfg->serial3;
}
/*
* Set the adapter's target id bit in the 'init_tidmask' field.
*/
boardp->init_tidmask |=
ADV_TID_TO_TIDMASK(adv_dvc_varp->chip_scsi_id);
/*
* Finish initializing the 'Scsi_Host' structure.
*/
shp->irq = adv_dvc_varp->irq_no;
}
/*
* Channels are numbered beginning with 0. For AdvanSys one host
* structure supports one channel. Multi-channel boards have a
* separate host structure for each channel.
*/
shp->max_channel = 0;
if (ASC_NARROW_BOARD(boardp)) {
shp->max_id = ASC_MAX_TID + 1;
shp->max_lun = ASC_MAX_LUN + 1;
shp->io_port = asc_dvc_varp->iop_base;
boardp->asc_n_io_port = ASC_IOADR_GAP;
shp->this_id = asc_dvc_varp->cfg->chip_scsi_id;
/* Set maximum number of queues the adapter can handle. */
shp->can_queue = asc_dvc_varp->max_total_qng;
} else {
shp->max_id = ADV_MAX_TID + 1;
shp->max_lun = ADV_MAX_LUN + 1;
/*
* Save the I/O Port address and length even though
* I/O ports are not used to access Wide boards.
* Instead the Wide boards are accessed with
* PCI Memory Mapped I/O.
*/
shp->io_port = iop;
boardp->asc_n_io_port = iolen;
shp->this_id = adv_dvc_varp->chip_scsi_id;
/* Set maximum number of queues the adapter can handle. */
shp->can_queue = adv_dvc_varp->max_host_qng;
}
/*
* 'n_io_port' currently is one byte.
*
* Set a value to 'n_io_port', but never referenced it because
* it may be truncated.
*/
shp->n_io_port = boardp->asc_n_io_port <= 255 ?
boardp->asc_n_io_port : 255;
/*
* Following v1.3.89, 'cmd_per_lun' is no longer needed
* and should be set to zero.
*
* But because of a bug introduced in v1.3.89 if the driver is
* compiled as a module and 'cmd_per_lun' is zero, the Mid-Level
* SCSI function 'allocate_device' will panic. To allow the driver
* to work as a module in these kernels set 'cmd_per_lun' to 1.
*/
#ifdef MODULE
shp->cmd_per_lun = 1;
#else /* MODULE */
shp->cmd_per_lun = 0;
#endif /* MODULE */
/*
* Use the host 'select_queue_depths' function to determine
* the number of commands to queue per device.
*/
shp->select_queue_depths = advansys_select_queue_depths;
/*
* Set the maximum number of scatter-gather elements the
* adapter can handle.
*/
if (ASC_NARROW_BOARD(boardp)) {
/*
* Allow two commands with 'sg_tablesize' scatter-gather
* elements to be executed simultaneously. This value is
* the theoretical hardware limit. It may be decreased
* below.
*/
shp->sg_tablesize =
(((asc_dvc_varp->max_total_qng - 2) / 2) *
ASC_SG_LIST_PER_Q) + 1;
} else {
shp->sg_tablesize = ADV_MAX_SG_LIST;
}
/*
* The value of 'sg_tablesize' can not exceed the SCSI
* mid-level driver definition of SG_ALL. SG_ALL also
* must not be exceeded, because it is used to define the
* size of the scatter-gather table in 'struct asc_sg_head'.
*/
if (shp->sg_tablesize > SG_ALL) {
shp->sg_tablesize = SG_ALL;
}
ASC_DBG1(1, "advansys_detect: sg_tablesize: %dn",
shp->sg_tablesize);
/* BIOS start address. */
if (ASC_NARROW_BOARD(boardp)) {
#if ASC_LINUX_KERNEL24
shp->base =
#elif ASC_LINUX_KERNEL22
shp->base = (char *)
#endif
((ulong) AscGetChipBiosAddress(
asc_dvc_varp->iop_base,
asc_dvc_varp->bus_type));
} else {
/*
* Fill-in BIOS board variables. The Wide BIOS saves
* information in LRAM that is used by the driver.
*/
AdvReadWordLram(adv_dvc_varp->iop_base, BIOS_SIGNATURE,
boardp->bios_signature);
AdvReadWordLram(adv_dvc_varp->iop_base, BIOS_VERSION,
boardp->bios_version);
AdvReadWordLram(adv_dvc_varp->iop_base, BIOS_CODESEG,
boardp->bios_codeseg);
AdvReadWordLram(adv_dvc_varp->iop_base, BIOS_CODELEN,
boardp->bios_codelen);
ASC_DBG2(1,
"advansys_detect: bios_signature 0x%x, bios_version 0x%xn",
boardp->bios_signature, boardp->bios_version);
ASC_DBG2(1,
"advansys_detect: bios_codeseg 0x%x, bios_codelen 0x%xn",
boardp->bios_codeseg, boardp->bios_codelen);
/*
* If the BIOS saved a valid signature, then fill in
* the BIOS code segment base address.
*/
if (boardp->bios_signature == 0x55AA) {
/*
* Convert x86 realmode code segment to a linear
* address by shifting left 4.
*/
shp->base =
#if ASC_LINUX_KERNEL22
(char *)
#endif
((ulong) boardp->bios_codeseg << 4);
} else {
shp->base = 0;
}
}
/*
* Register Board Resources - I/O Port, DMA, IRQ
*/
/*
* Register I/O port range.
*
* For Wide boards the I/O ports are not used to access
* the board, but request the region anyway.
*
* 'shp->n_io_port' is not referenced, because it may be truncated.
*/
ASC_DBG2(2,
"advansys_detect: request_region port 0x%lx, len 0x%xn",
(ulong) shp->io_port, boardp->asc_n_io_port);
#if ASC_LINUX_KERNEL24
if (request_region(shp->io_port, boardp->asc_n_io_port,
"advansys") == NULL) {
ASC_PRINT3(
"advansys_detect: board %d: request_region() failed, port 0x%lx, len 0x%xn",
boardp->id, (ulong) shp->io_port, boardp->asc_n_io_port);
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
asc_board_count--;
continue;
}
#elif ASC_LINUX_KERNEL22
request_region(shp->io_port, boardp->asc_n_io_port, "advansys");
#endif
/* Register DMA Channel for Narrow boards. */
shp->dma_channel = NO_ISA_DMA; /* Default to no ISA DMA. */
#ifdef CONFIG_ISA
if (ASC_NARROW_BOARD(boardp)) {
/* Register DMA channel for ISA bus. */
if (asc_dvc_varp->bus_type & ASC_IS_ISA) {
shp->dma_channel = asc_dvc_varp->cfg->isa_dma_channel;
if ((ret =
request_dma(shp->dma_channel, "advansys")) != 0) {
ASC_PRINT3(
"advansys_detect: board %d: request_dma() %d failed %dn",
boardp->id, shp->dma_channel, ret);
release_region(shp->io_port, boardp->asc_n_io_port);
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
asc_board_count--;
continue;
}
AscEnableIsaDma(shp->dma_channel);
}
}
#endif /* CONFIG_ISA */
/* Register IRQ Number. */
ASC_DBG1(2, "advansys_detect: request_irq() %dn", shp->irq);
/*
* If request_irq() fails with the SA_INTERRUPT flag set,
* then try again without the SA_INTERRUPT flag set. This
* allows IRQ sharing to work even with other drivers that
* do not set the SA_INTERRUPT flag.
*
* If SA_INTERRUPT is not set, then interrupts are enabled
* before the driver interrupt function is called.
*/
if (((ret = request_irq(shp->irq, advansys_interrupt,
SA_INTERRUPT | (share_irq == TRUE ? SA_SHIRQ : 0),
"advansys", boardp)) != 0) &&
((ret = request_irq(shp->irq, advansys_interrupt,
(share_irq == TRUE ? SA_SHIRQ : 0),
"advansys", boardp)) != 0))
{
if (ret == -EBUSY) {
ASC_PRINT2(
"advansys_detect: board %d: request_irq(): IRQ 0x%x already in use.n",
boardp->id, shp->irq);
} else if (ret == -EINVAL) {
ASC_PRINT2(
"advansys_detect: board %d: request_irq(): IRQ 0x%x not valid.n",
boardp->id, shp->irq);
} else {
ASC_PRINT3(
"advansys_detect: board %d: request_irq(): IRQ 0x%x failed with %dn",
boardp->id, shp->irq, ret);
}
release_region(shp->io_port, boardp->asc_n_io_port);
iounmap(boardp->ioremap_addr);
if (shp->dma_channel != NO_ISA_DMA) {
free_dma(shp->dma_channel);
}
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
asc_board_count--;
continue;
}
/*
* Initialize board RISC chip and enable interrupts.
*/
if (ASC_NARROW_BOARD(boardp)) {
ASC_DBG(2, "advansys_detect: AscInitAsc1000Driver()n");
warn_code = AscInitAsc1000Driver(asc_dvc_varp);
err_code = asc_dvc_varp->err_code;
if (warn_code || err_code) {
ASC_PRINT4(
"advansys_detect: board %d error: init_state 0x%x, warn 0x%x, error 0x%xn",
boardp->id, asc_dvc_varp->init_state,
warn_code, err_code);
}
} else {
ADV_CARR_T *carrp;
int req_cnt;
adv_req_t *reqp = NULL;
int sg_cnt = 0;
/*
* Allocate buffer carrier structures. The total size
* is about 4 KB, so allocate all at once.
*/
carrp =
(ADV_CARR_T *) kmalloc(ADV_CARRIER_BUFSIZE, GFP_ATOMIC);
ASC_DBG1(1, "advansys_detect: carrp 0x%lxn", (ulong) carrp);
if (carrp == NULL) {
goto kmalloc_error;
}
/*
* Allocate up to 'max_host_qng' request structures for
* the Wide board. The total size is about 16 KB, so
* allocate all at once. If the allocation fails decrement
* and try again.
*/
for (req_cnt = adv_dvc_varp->max_host_qng;
req_cnt > 0; req_cnt--) {
reqp = (adv_req_t *)
kmalloc(sizeof(adv_req_t) * req_cnt, GFP_ATOMIC);
ASC_DBG3(1,
"advansys_detect: reqp 0x%lx, req_cnt %d, bytes %lun",
(ulong) reqp, req_cnt,
(ulong) sizeof(adv_req_t) * req_cnt);
if (reqp != NULL) {
break;
}
}
if (reqp == NULL)
{
goto kmalloc_error;
}
/*
* Allocate up to ADV_TOT_SG_BLOCK request structures for
* the Wide board. Each structure is about 136 bytes.
*/
boardp->adv_sgblkp = NULL;
for (sg_cnt = 0; sg_cnt < ADV_TOT_SG_BLOCK; sg_cnt++) {
sgp = (adv_sgblk_t *)
kmalloc(sizeof(adv_sgblk_t), GFP_ATOMIC);
if (sgp == NULL) {
break;
}
sgp->next_sgblkp = boardp->adv_sgblkp;
boardp->adv_sgblkp = sgp;
}
ASC_DBG3(1,
"advansys_detect: sg_cnt %d * %u = %u bytesn",
sg_cnt, sizeof(adv_sgblk_t),
(unsigned) (sizeof(adv_sgblk_t) * sg_cnt));
/*
* If no request structures or scatter-gather structures could
* be allocated, then return an error. Otherwise continue with
* initialization.
*/
kmalloc_error:
if (carrp == NULL)
{
ASC_PRINT1(
"advansys_detect: board %d error: failed to kmalloc() carrier buffer.n",
boardp->id);
err_code = ADV_ERROR;
} else if (reqp == NULL) {
kfree(carrp);
ASC_PRINT1(
"advansys_detect: board %d error: failed to kmalloc() adv_req_t buffer.n",
boardp->id);
err_code = ADV_ERROR;
} else if (boardp->adv_sgblkp == NULL) {
kfree(carrp);
kfree(reqp);
ASC_PRINT1(
"advansys_detect: board %d error: failed to kmalloc() adv_sgblk_t buffers.n",
boardp->id);
err_code = ADV_ERROR;
} else {
/* Save carrier buffer pointer. */
boardp->orig_carrp = carrp;
/*
* Save original pointer for kfree() in case the
* driver is built as a module and can be unloaded.
*/
boardp->orig_reqp = reqp;
adv_dvc_varp->carrier_buf = carrp;
/*
* Point 'adv_reqp' to the request structures and
* link them together.
*/
req_cnt--;
reqp[req_cnt].next_reqp = NULL;
for (; req_cnt > 0; req_cnt--) {
reqp[req_cnt - 1].next_reqp = &reqp[req_cnt];
}
boardp->adv_reqp = &reqp[0];
if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550)
{
ASC_DBG(2,
"advansys_detect: AdvInitAsc3550Driver()n");
warn_code = AdvInitAsc3550Driver(adv_dvc_varp);
} else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
ASC_DBG(2,
"advansys_detect: AdvInitAsc38C0800Driver()n");
warn_code = AdvInitAsc38C0800Driver(adv_dvc_varp);
} else {
ASC_DBG(2,
"advansys_detect: AdvInitAsc38C1600Driver()n");
warn_code = AdvInitAsc38C1600Driver(adv_dvc_varp);
}
err_code = adv_dvc_varp->err_code;
if (warn_code || err_code) {
ASC_PRINT3(
"advansys_detect: board %d error: warn 0x%x, error 0x%xn",
boardp->id, warn_code, err_code);
}
}
}
if (err_code != 0) {
release_region(shp->io_port, boardp->asc_n_io_port);
if (ASC_WIDE_BOARD(boardp)) {
iounmap(boardp->ioremap_addr);
if (boardp->orig_carrp) {
kfree(boardp->orig_carrp);
boardp->orig_carrp = NULL;
}
if (boardp->orig_reqp) {
kfree(boardp->orig_reqp);
boardp->orig_reqp = boardp->adv_reqp = NULL;
}
while ((sgp = boardp->adv_sgblkp) != NULL)
{
boardp->adv_sgblkp = sgp->next_sgblkp;
kfree(sgp);
}
}
if (shp->dma_channel != NO_ISA_DMA) {
free_dma(shp->dma_channel);
}
#ifdef CONFIG_PROC_FS
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
free_irq(shp->irq, boardp);
scsi_unregister(shp);
asc_board_count--;
continue;
}
ASC_DBG_PRT_SCSI_HOST(2, shp);
}
}
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level detect entrypoint.
*/
ASC_LOCK_IO_REQUEST_LOCK
ASC_DBG1(1, "advansys_detect: done: asc_board_count %dn", asc_board_count);
return asc_board_count;
}
/*
* advansys_release()
*
* Release resources allocated for a single AdvanSys adapter.
*/
int
advansys_release(struct Scsi_Host *shp)
{
asc_board_t *boardp;
ASC_DBG(1, "advansys_release: beginn");
boardp = ASC_BOARDP(shp);
free_irq(shp->irq, boardp);
if (shp->dma_channel != NO_ISA_DMA) {
ASC_DBG(1, "advansys_release: free_dma()n");
free_dma(shp->dma_channel);
}
release_region(shp->io_port, boardp->asc_n_io_port);
if (ASC_WIDE_BOARD(boardp)) {
adv_sgblk_t *sgp = NULL;
iounmap(boardp->ioremap_addr);
if (boardp->orig_carrp) {
kfree(boardp->orig_carrp);
boardp->orig_carrp = NULL;
}
if (boardp->orig_reqp) {
kfree(boardp->orig_reqp);
boardp->orig_reqp = boardp->adv_reqp = NULL;
}
while ((sgp = boardp->adv_sgblkp) != NULL)
{
boardp->adv_sgblkp = sgp->next_sgblkp;
kfree(sgp);
}
}
#ifdef CONFIG_PROC_FS
ASC_ASSERT(boardp->prtbuf != NULL);
kfree(boardp->prtbuf);
#endif /* CONFIG_PROC_FS */
scsi_unregister(shp);
ASC_DBG(1, "advansys_release: endn");
return 0;
}
/*
* advansys_info()
*
* Return suitable for printing on the console with the argument
* adapter's configuration information.
*
* Note: The information line should not exceed ASC_INFO_SIZE bytes,
* otherwise the static 'info' array will be overrun.
*/
const char *
advansys_info(struct Scsi_Host *shp)
{
static char info[ASC_INFO_SIZE];
asc_board_t *boardp;
ASC_DVC_VAR *asc_dvc_varp;
ADV_DVC_VAR *adv_dvc_varp;
char *busname;
int iolen;
char *widename = NULL;
boardp = ASC_BOARDP(shp);
if (ASC_NARROW_BOARD(boardp)) {
asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
ASC_DBG(1, "advansys_info: beginn");
if (asc_dvc_varp->bus_type & ASC_IS_ISA) {
if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == ASC_IS_ISAPNP) {
busname = "ISA PnP";
} else {
busname = "ISA";
}
/* Don't reference 'shp->n_io_port'; It may be truncated. */
sprintf(info,
"AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X",
ASC_VERSION, busname,
(ulong) shp->io_port,
(ulong) shp->io_port + boardp->asc_n_io_port - 1,
shp->irq, shp->dma_channel);
} else {
if (asc_dvc_varp->bus_type & ASC_IS_VL) {
busname = "VL";
} else if (asc_dvc_varp->bus_type & ASC_IS_EISA) {
busname = "EISA";
} else if (asc_dvc_varp->bus_type & ASC_IS_PCI) {
if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA)
== ASC_IS_PCI_ULTRA) {
busname = "PCI Ultra";
} else {
busname = "PCI";
}
} else {
busname = "?";
ASC_PRINT2( "advansys_info: board %d: unknown bus type %dn",
boardp->id, asc_dvc_varp->bus_type);
}
/* Don't reference 'shp->n_io_port'; It may be truncated. */
sprintf(info,
"AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X",
ASC_VERSION, busname,
(ulong) shp->io_port,
(ulong) shp->io_port + boardp->asc_n_io_port - 1,
shp->irq);
}
} else {
/*
* Wide Adapter Information
*
* Memory-mapped I/O is used instead of I/O space to access
* the adapter, but display the I/O Port range. The Memory
* I/O address is displayed through the driver /proc file.
*/
adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550)
{
iolen = ADV_3550_IOLEN;
widename = "Ultra-Wide";
} else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800)
{
iolen = ADV_38C0800_IOLEN;
widename = "Ultra2-Wide";
} else
{
iolen = ADV_38C1600_IOLEN;
widename = "Ultra3-Wide";
}
sprintf(info, "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X",
ASC_VERSION,
widename,
(ulong) adv_dvc_varp->iop_base,
(ulong) adv_dvc_varp->iop_base + iolen - 1,
shp->irq);
}
ASC_ASSERT(strlen(info) < ASC_INFO_SIZE);
ASC_DBG(1, "advansys_info: endn");
return info;
}
/*
* advansys_queuecommand() - interrupt-driven I/O entrypoint.
*
* This function always returns 0. Command return status is saved
* in the 'scp' result field.
*/
int
advansys_queuecommand(Scsi_Cmnd *scp, void (*done)(Scsi_Cmnd *))
{
struct Scsi_Host *shp;
asc_board_t *boardp;
ulong flags;
Scsi_Cmnd *done_scp;
shp = scp->host;
boardp = ASC_BOARDP(shp);
ASC_STATS(shp, queuecommand);
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level queuecommand entrypoint.
*/
ASC_UNLOCK_IO_REQUEST_LOCK
spin_lock_irqsave(&boardp->lock, flags);
/*
* Block new commands while handling a reset or abort request.
*/
if (boardp->flags & ASC_HOST_IN_RESET) {
ASC_DBG1(1,
"advansys_queuecommand: scp 0x%lx blocked for reset requestn",
(ulong) scp);
scp->result = HOST_BYTE(DID_RESET);
/*
* Add blocked requests to the board's 'done' queue. The queued
* requests will be completed at the end of the abort or reset
* handling.
*/
asc_enqueue(&boardp->done, scp, ASC_BACK);
spin_unlock_irqrestore(&boardp->lock, flags);
return 0;
}
/*
* Attempt to execute any waiting commands for the board.
*/
if (!ASC_QUEUE_EMPTY(&boardp->waiting)) {
ASC_DBG(1,
"advansys_queuecommand: before asc_execute_queue() waitingn");
asc_execute_queue(&boardp->waiting);
}
/*
* Save the function pointer to Linux mid-level 'done' function
* and attempt to execute the command.
*
* If ASC_NOERROR is returned the request has been added to the
* board's 'active' queue and will be completed by the interrupt
* handler.
*
* If ASC_BUSY is returned add the request to the board's per
* target waiting list. This is the first time the request has
* been tried. Add it to the back of the waiting list. It will be
* retried later.
*
* If an error occurred, the request will have been placed on the
* board's 'done' queue and must be completed before returning.
*/
scp->scsi_done = done;
switch (asc_execute_scsi_cmnd(scp)) {
case ASC_NOERROR:
break;
case ASC_BUSY:
asc_enqueue(&boardp->waiting, scp, ASC_BACK);
break;
case ASC_ERROR:
default:
done_scp = asc_dequeue_list(&boardp->done, NULL, ASC_TID_ALL);
/* Interrupts could be enabled here. */
asc_scsi_done_list(done_scp);
break;
}
spin_unlock_irqrestore(&boardp->lock, flags);
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level queuecommand entrypoint.
*/
ASC_LOCK_IO_REQUEST_LOCK
return 0;
}
/*
* advansys_reset()
*
* Reset the bus associated with the command 'scp'.
*
* This function runs its own thread. Interrupts must be blocked but
* sleeping is allowed and no locking other than for host structures is
* required. Returns SUCCESS or FAILED.
*/
int
advansys_reset(Scsi_Cmnd *scp)
{
struct Scsi_Host *shp;
asc_board_t *boardp;
ASC_DVC_VAR *asc_dvc_varp;
ADV_DVC_VAR *adv_dvc_varp;
ulong flags;
Scsi_Cmnd *done_scp = NULL, *last_scp = NULL;
Scsi_Cmnd *tscp, *new_last_scp;
int status;
int ret = SUCCESS;
ASC_DBG1(1, "advansys_reset: 0x%lxn", (ulong) scp);
#ifdef ADVANSYS_STATS
if (scp->host != NULL) {
ASC_STATS(scp->host, reset);
}
#endif /* ADVANSYS_STATS */
if ((shp = scp->host) == NULL) {
scp->result = HOST_BYTE(DID_ERROR);
return FAILED;
}
boardp = ASC_BOARDP(shp);
ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...n",
boardp->id);
/*
* Check for re-entrancy.
*/
spin_lock_irqsave(&boardp->lock, flags);
if (boardp->flags & ASC_HOST_IN_RESET) {
spin_unlock_irqrestore(&boardp->lock, flags);
return FAILED;
}
boardp->flags |= ASC_HOST_IN_RESET;
spin_unlock_irqrestore(&boardp->lock, flags);
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level reset entrypoint.
*/
ASC_UNLOCK_IO_REQUEST_LOCK
if (ASC_NARROW_BOARD(boardp)) {
/*
* Narrow Board
*/
asc_dvc_varp = &boardp->dvc_var.asc_dvc_var;
/*
* Reset the chip and SCSI bus.
*/
ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()n");
status = AscInitAsc1000Driver(asc_dvc_varp);
/* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */
if (asc_dvc_varp->err_code) {
ASC_PRINT2(
"advansys_reset: board %d: SCSI bus reset error: 0x%xn",
boardp->id, asc_dvc_varp->err_code);
ret = FAILED;
} else if (status) {
ASC_PRINT2(
"advansys_reset: board %d: SCSI bus reset warning: 0x%xn",
boardp->id, status);
} else {
ASC_PRINT1(
"advansys_reset: board %d: SCSI bus reset successful.n",
boardp->id);
}
ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()n");
/*
* Acquire the board lock.
*/
spin_lock_irqsave(&boardp->lock, flags);
} else {
/*
* Wide Board
*
* If the suggest reset bus flags are set, then reset the bus.
* Otherwise only reset the device.
*/
adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
/*
* Reset the target's SCSI bus.
*/
ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()n");
switch (AdvResetChipAndSB(adv_dvc_varp)) {
case ASC_TRUE:
ASC_PRINT1("advansys_reset: board %d: SCSI bus reset successful.n",
boardp->id);
break;
case ASC_FALSE:
default:
ASC_PRINT1("advansys_reset: board %d: SCSI bus reset error.n",
boardp->id);
ret = FAILED;
break;
}
/*
* Acquire the board lock and ensure all requests completed by the
* microcode have been processed by calling AdvISR().
*/
spin_lock_irqsave(&boardp->lock, flags);
(void) AdvISR(adv_dvc_varp);
}
/* Board lock is held. */
/*
* Dequeue all board 'done' requests. A pointer to the last request
* is returned in 'last_scp'.
*/
done_scp = asc_dequeue_list(&boardp->done, &last_scp, ASC_TID_ALL);
/*
* Dequeue all board 'active' requests for all devices and set
* the request status to DID_RESET. A pointer to the last request
* is returned in 'last_scp'.
*/
if (done_scp == NULL) {
done_scp = asc_dequeue_list(&boardp->active, &last_scp, ASC_TID_ALL);
for (tscp = done_scp; tscp; tscp = REQPNEXT(tscp)) {
tscp->result = HOST_BYTE(DID_RESET);
}
} else {
/* Append to 'done_scp' at the end with 'last_scp'. */
ASC_ASSERT(last_scp != NULL);
REQPNEXT(last_scp) = asc_dequeue_list(&boardp->active,
&new_last_scp, ASC_TID_ALL);
if (new_last_scp != NULL) {
ASC_ASSERT(REQPNEXT(last_scp) != NULL);
for (tscp = REQPNEXT(last_scp); tscp; tscp = REQPNEXT(tscp)) {
tscp->result = HOST_BYTE(DID_RESET);
}
last_scp = new_last_scp;
}
}
/*
* Dequeue all 'waiting' requests and set the request status
* to DID_RESET.
*/
if (done_scp == NULL) {
done_scp = asc_dequeue_list(&boardp->waiting, &last_scp, ASC_TID_ALL);
for (tscp = done_scp; tscp; tscp = REQPNEXT(tscp)) {
tscp->result = HOST_BYTE(DID_RESET);
}
} else {
/* Append to 'done_scp' at the end with 'last_scp'. */
ASC_ASSERT(last_scp != NULL);
REQPNEXT(last_scp) = asc_dequeue_list(&boardp->waiting,
&new_last_scp, ASC_TID_ALL);
if (new_last_scp != NULL) {
ASC_ASSERT(REQPNEXT(last_scp) != NULL);
for (tscp = REQPNEXT(last_scp); tscp; tscp = REQPNEXT(tscp)) {
tscp->result = HOST_BYTE(DID_RESET);
}
last_scp = new_last_scp;
}
}
/* Save the time of the most recently completed reset. */
boardp->last_reset = jiffies;
/* Clear reset flag. */
boardp->flags &= ~ASC_HOST_IN_RESET;
/* Release the board. */
spin_unlock_irqrestore(&boardp->lock, flags);
/*
* Complete all the 'done_scp' requests.
*/
if (done_scp != NULL) {
asc_scsi_done_list(done_scp);
}
/*
* XXX - Remove this comment and the next line when SCSI mid-level
* no longer acquires 'io_request_lock' before calling the SCSI
* low-level reset entrypoint.
*/
ASC_LOCK_IO_REQUEST_LOCK
ASC_DBG1(1, "advansys_reset: ret %dn", ret);
return ret;
}
/*
* advansys_biosparam()
*
* Translate disk drive geometry if the "BIOS greater than 1 GB"
* support is enabled for a drive.
*
* ip (information pointer) is an int array with the following definition:
* ip[0]: heads
* ip[1]: sectors
* ip[2]: cylinders
*/
int
advansys_biosparam(Disk *dp, kdev_t dep, int ip[])
{
asc_board_t *boardp;
ASC_DBG(1, "advansys_biosparam: beginn");
ASC_STATS(dp->device->host, biosparam);
boardp = ASC_BOARDP(dp->device->host);
if (ASC_NARROW_BOARD(boardp)) {
if ((boardp->dvc_var.asc_dvc_var.dvc_cntl &
ASC_CNTL_BIOS_GT_1GB) && dp->capacity > 0x200000) {
ip[0] = 255;
ip[1] = 63;
} else {
ip[0] = 64;
ip[1] = 32;
}
} else {
if ((boardp->dvc_var.adv_dvc_var.bios_ctrl &
BIOS_CTRL_EXTENDED_XLAT) && dp->capacity > 0x200000) {
ip[0] = 255;
ip[1] = 63;
} else {
ip[0] = 64;
ip[1] = 32;
}
}
ip[2] = dp->capacity / (ip[0] * ip[1]);
ASC_DBG(1, "advansys_biosparam: endn");
return 0;
}
/*
* advansys_setup()