diff options
| -rw-r--r-- | drivers/scsi/advansys.c | 12273 |
1 files changed, 6043 insertions, 6230 deletions
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 0303fc7dacd3..4f047cc87c66 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -878,7 +878,6 @@ typedef struct asceep_config { #define ASC_1000_ID0W_FIX 0x00C1 #define ASC_1000_ID1B 0x25 #define ASC_EISA_REV_IOP_MASK (0x0C83) -#define ASC_EISA_PID_IOP_MASK (0x0C80) #define ASC_EISA_CFG_IOP_MASK (0x0C86) #define ASC_GET_EISA_SLOT(iop) (PortAddr)((iop) & 0xF000) #define INS_HALTINT (ushort)0x6281 @@ -903,10 +902,10 @@ typedef struct asc_mc_saved { #define AscGetRiscVarDoneQTail(port) AscReadLramByte((port), ASCV_DONENEXT_B) #define AscPutRiscVarFreeQHead(port, val) AscWriteLramByte((port), ASCV_NEXTRDY_B, val) #define AscPutRiscVarDoneQTail(port, val) AscWriteLramByte((port), ASCV_DONENEXT_B, val) -#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)); -#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)); -#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data); -#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)); +#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)) +#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)) +#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data) +#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)) #define AscSynIndexToPeriod(index) (uchar)(asc_dvc->sdtr_period_tbl[ (index) ]) #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE) #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD) @@ -962,83 +961,6 @@ typedef struct asc_mc_saved { #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID) #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data) -static int AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg); -static int AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg); -static void AscWaitEEPRead(void); -static void AscWaitEEPWrite(void); -static ushort AscReadEEPWord(PortAddr, uchar); -static ushort AscWriteEEPWord(PortAddr, uchar, ushort); -static ushort AscGetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfigOnce(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscStartChip(PortAddr); -static int AscStopChip(PortAddr); -static void AscSetChipIH(PortAddr, ushort); -static int AscIsChipHalted(PortAddr); -static void AscAckInterrupt(PortAddr); -static void AscDisableInterrupt(PortAddr); -static void AscEnableInterrupt(PortAddr); -static void AscSetBank(PortAddr, uchar); -static int AscResetChipAndScsiBus(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static uchar AscGetIsaDmaSpeed(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscReadLramByte(PortAddr, ushort); -static ushort AscReadLramWord(PortAddr, ushort); -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr, ushort); -#endif /* CC_VERY_LONG_SG_LIST */ -static void AscWriteLramWord(PortAddr, ushort, ushort); -static void AscWriteLramByte(PortAddr, ushort, uchar); -static ASC_DCNT AscMemSumLramWord(PortAddr, ushort, int); -static void AscMemWordSetLram(PortAddr, ushort, ushort, int); -static void AscMemWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemDWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemWordCopyPtrFromLram(PortAddr, ushort, uchar *, int); -static ushort AscInitAscDvcVar(ASC_DVC_VAR *); -static ushort AscInitFromEEP(ASC_DVC_VAR *); -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *); -static int AscTestExternalLram(ASC_DVC_VAR *); -static uchar AscMsgOutSDTR(ASC_DVC_VAR *, uchar, uchar); -static uchar AscCalSDTRData(ASC_DVC_VAR *, uchar, uchar); -static void AscSetChipSDTR(PortAddr, uchar, uchar); -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *, uchar); -static uchar AscAllocFreeQueue(PortAddr, uchar); -static uchar AscAllocMultipleFreeQueue(PortAddr, uchar, uchar); -static int AscHostReqRiscHalt(PortAddr); -static int AscStopQueueExe(PortAddr); -static int AscSendScsiQueue(ASC_DVC_VAR *, - ASC_SCSI_Q *scsiq, uchar n_q_required); -static int AscPutReadyQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscPutReadySgListQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscSetChipSynRegAtID(PortAddr, uchar, uchar); -static int AscSetRunChipSynRegAtID(PortAddr, uchar, uchar); -static ushort AscInitLram(ASC_DVC_VAR *); -static int AscSetLibErrorCode(ASC_DVC_VAR *, ushort); -static int AscIsrChipHalted(ASC_DVC_VAR *); -static uchar _AscCopyLramScsiDoneQ(PortAddr, ushort, - ASC_QDONE_INFO *, ASC_DCNT); -static int AscIsrQDone(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static ushort AscGetEisaChipCfg(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscGetChipScsiCtrl(PortAddr); -static uchar AscGetChipVersion(PortAddr, ushort); -static ASC_DCNT AscLoadMicroCode(PortAddr, ushort, uchar *, ushort); -static void AscToggleIRQAct(PortAddr); -static void DvcPutScsiQ(PortAddr, ushort, uchar *, int); -static void DvcGetQinfo(PortAddr, ushort, uchar *, int); -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *); -static void AscAsyncFix(ASC_DVC_VAR *, struct scsi_device *); -static int AscExeScsiQueue(ASC_DVC_VAR *, ASC_SCSI_Q *); -static int AscISR(ASC_DVC_VAR *); -static uint AscGetNumOfFreeQueue(ASC_DVC_VAR *, uchar, uchar); -static int AscSgListToQueue(int); -#ifdef CONFIG_ISA -static void AscEnableIsaDma(uchar); -#endif /* CONFIG_ISA */ -static const char *advansys_info(struct Scsi_Host *shost); - #define ADV_LIB_VERSION_MAJOR 5 #define ADV_LIB_VERSION_MINOR 14 @@ -2109,36 +2031,6 @@ typedef struct adv_scsi_req_q { #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */ -static ADV_PADDR DvcGetPhyAddr(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *, - uchar *, ASC_SDCNT *, int); - -/* - * Adv Library functions available to drivers. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *); -static int AdvISR(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 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); - /* Read byte from a register. */ #define AdvReadByteRegister(iop_base, reg_off) \ (ADV_MEM_READB((iop_base) + (reg_off))) @@ -2676,1717 +2568,489 @@ static ASC_SG_HEAD asc_sg_head = { 0 }; #ifdef ADVANSYS_DEBUG static int asc_dbglvl = 3; -#endif /* ADVANSYS_DEBUG */ - -static int advansys_slave_configure(struct scsi_device *); -static int asc_execute_scsi_cmnd(struct scsi_cmnd *); -static int asc_build_req(asc_board_t *, struct scsi_cmnd *); -static int adv_build_req(asc_board_t *, struct scsi_cmnd *, ADV_SCSI_REQ_Q **); -static int adv_get_sglist(asc_board_t *, adv_req_t *, struct scsi_cmnd *, int); -#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 */ -/* Statistics function prototypes. */ -#ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS -static int asc_prt_board_stats(struct Scsi_Host *, 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(struct 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 */ - -#ifdef CONFIG_PROC_FS /* - * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} - * - * *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. + * asc_prt_scsi_host() */ -static int -advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +static void asc_prt_scsi_host(struct Scsi_Host *s) { asc_board_t *boardp; - char *cp; - int cplen; - int cnt; - int totcnt; - int leftlen; - char *curbuf; - off_t advoffset; - - ASC_DBG(1, "advansys_proc_info: begin\n"); - - /* - * User write not supported. - */ - if (inout == TRUE) { - return (-ENOSYS); - } - - /* - * User read of /proc/scsi/advansys/[0...] file. - */ - - boardp = ASC_BOARDP(shost); - - /* 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(shost); - 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 %d\n", 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(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(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 %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - } + boardp = ASC_BOARDP(s); - /* - * Display driver information for each device attached to the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(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 %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk("Scsi_Host at addr 0x%lx\n", (ulong)s); + printk(" host_busy %u, host_no %d, last_reset %d,\n", + s->host_busy, s->host_no, (unsigned)s->last_reset); - /* - * Display EEPROM configuration for the board. - */ - cp = boardp->prtbuf; - if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } else { - cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(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 %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", + (ulong)s->base, (ulong)s->io_port, s->irq); - /* - * Display driver configuration and information for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(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 %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" dma_channel %d, this_id %d, can_queue %d,\n", + s->dma_channel, s->this_id, s->can_queue); -#ifdef ADVANSYS_STATS - /* - * Display driver statistics for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(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 %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; -#endif /* ADVANSYS_STATS */ + printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", + s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); - /* - * Display Asc Library dynamic configuration information - * for the board. - */ - cp = boardp->prtbuf; if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); } else { - cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(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 %d\n", totcnt); - return totcnt; + asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); } - advoffset += cplen; - curbuf += cnt; - - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - - return totcnt; } -#endif /* CONFIG_PROC_FS */ /* - * 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. + * asc_prt_scsi_cmnd() */ -static const char *advansys_info(struct Scsi_Host *shost) -{ - static char info[ASC_INFO_SIZE]; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - char *busname; - char *widename = NULL; - - boardp = ASC_BOARDP(shost); - if (ASC_NARROW_BOARD(boardp)) { - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - ASC_DBG(1, "advansys_info: begin\n"); - 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"; - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", - ASC_VERSION, busname, - (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq, shost->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 %d\n", boardp->id, - asc_dvc_varp->bus_type); - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", - ASC_VERSION, busname, (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->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) { - widename = "Ultra-Wide"; - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - widename = "Ultra2-Wide"; - } else { - 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 + boardp->asc_n_io_port - 1, shost->irq); - } - BUG_ON(strlen(info) >= ASC_INFO_SIZE); - ASC_DBG(1, "advansys_info: end\n"); - return info; -} - -static void asc_scsi_done(struct scsi_cmnd *scp) +static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); + printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); + printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", + (ulong)s->device->host, (ulong)s->device, s->device->id, + s->device->lun, s->device->channel); - ASC_STATS(scp->device->host, done); + asc_prt_hex(" CDB", s->cmnd, s->cmd_len); - scp->scsi_done(scp); -} + printk("sc_data_direction %u, resid %d\n", + s->sc_data_direction, s->resid); -/* - * advansys_queuecommand() - interrupt-driven I/O entrypoint. - * - * This function always returns 0. Command return status is saved - * in the 'scp' result field. - */ -static int -advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) -{ - struct Scsi_Host *shost = scp->device->host; - asc_board_t *boardp = ASC_BOARDP(shost); - unsigned long flags; - int asc_res, result = 0; + printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); - ASC_STATS(shost, queuecommand); - scp->scsi_done = done; + printk(" serial_number 0x%x, retries %d, allowed %d\n", + (unsigned)s->serial_number, s->retries, s->allowed); - /* - * host_lock taken by mid-level prior to call, but need - * to protect against own ISR - */ - spin_lock_irqsave(&boardp->lock, flags); - asc_res = asc_execute_scsi_cmnd(scp); - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" timeout_per_command %d\n", s->timeout_per_command); - switch (asc_res) { - case ASC_NOERROR: - break; - case ASC_BUSY: - result = SCSI_MLQUEUE_HOST_BUSY; - break; - case ASC_ERROR: - default: - asc_scsi_done(scp); - break; - } + printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", + s->scsi_done, s->done, s->host_scribble, s->result); - return result; + printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); } /* - * 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. + * asc_prt_asc_dvc_var() */ -static int advansys_reset(struct scsi_cmnd *scp) +static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ulong flags; - int status; - int ret = SUCCESS; - - ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); - -#ifdef ADVANSYS_STATS - if (scp->device->host != NULL) { - ASC_STATS(scp->device->host, reset); - } -#endif /* ADVANSYS_STATS */ - - if ((shost = scp->device->host) == NULL) { - scp->result = HOST_BYTE(DID_ERROR); - return FAILED; - } - - boardp = ASC_BOARDP(shost); - - 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); - - 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%x\n", boardp->id, - asc_dvc_varp->err_code); - ret = FAILED; - } else if (status) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "warning: 0x%x\n", 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"); - 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; + printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - /* - * 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; - } - spin_lock_irqsave(&boardp->lock, flags); - (void)AdvISR(adv_dvc_varp); - } - /* Board lock is held. */ + printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " + "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - /* Save the time of the most recently completed reset. */ - boardp->last_reset = jiffies; + printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, + (unsigned)h->init_sdtr); - /* Clear reset flag. */ - boardp->flags &= ~ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " + "chip_no 0x%x,\n", (unsigned)h->sdtr_done, + (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, + (unsigned)h->chip_no); - ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " + "%u,\n", (unsigned)h->queue_full_or_busy, + (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); - return ret; -} + printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " + "in_critical_cnt %u,\n", (unsigned)h->is_in_int, + (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, + (unsigned)h->in_critical_cnt); -/* - * 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 - */ -static int -advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, - sector_t capacity, int ip[]) -{ - asc_board_t *boardp; + printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " + "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, + (unsigned)h->init_state, (unsigned)h->no_scam, + (unsigned)h->pci_fix_asyn_xfer); - ASC_DBG(1, "advansys_biosparam: begin\n"); - ASC_STATS(sdev->host, biosparam); - boardp = ASC_BOARDP(sdev->host); - if (ASC_NARROW_BOARD(boardp)) { - if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & - ASC_CNTL_BIOS_GT_1GB) && 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) && capacity > 0x200000) { - ip[0] = 255; - ip[1] = 63; - } else { - ip[0] = 64; - ip[1] = 32; - } - } - ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); - ASC_DBG(1, "advansys_biosparam: end\n"); - return 0; + printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); } -static struct scsi_host_template advansys_template = { - .proc_name = DRV_NAME, -#ifdef CONFIG_PROC_FS - .proc_info = advansys_proc_info, -#endif - .name = DRV_NAME, - .info = advansys_info, - .queuecommand = advansys_queuecommand, - .eh_bus_reset_handler = advansys_reset, - .bios_param = advansys_biosparam, - .slave_configure = advansys_slave_configure, - /* - * Because the driver may control an ISA adapter 'unchecked_isa_dma' - * must be set. The flag will be cleared in advansys_board_found - * for non-ISA adapters. - */ - .unchecked_isa_dma = 1, - /* - * All adapters controlled by this driver are capable of large - * scatter-gather lists. According to the mid-level SCSI documentation - * this obviates any performance gain provided by setting - * 'use_clustering'. But empirically while CPU utilization is increased - * by enabling clustering, I/O throughput increases as well. - */ - .use_clustering = ENABLE_CLUSTERING, -}; - /* - * First-level interrupt handler. - * - * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + * asc_prt_asc_dvc_cfg() */ -static irqreturn_t advansys_interrupt(int irq, void *dev_id) -{ - unsigned long flags; - struct Scsi_Host *shost = dev_id; - asc_board_t *boardp = ASC_BOARDP(shost); - irqreturn_t result = IRQ_NONE; - - ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); - spin_lock_irqsave(&boardp->lock, flags); - if (ASC_NARROW_BOARD(boardp)) { - if (AscIsIntPending(shost->io_port)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); - AscISR(&boardp->dvc_var.asc_dvc_var); - } - } else { - ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); - if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - } - } - spin_unlock_irqrestore(&boardp->lock, flags); - - ASC_DBG(1, "advansys_interrupt: end\n"); - return result; -} - -static void -advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) { - ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; - ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; - - if (sdev->lun == 0) { - ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; - if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { - asc_dvc->init_sdtr |= tid_bit; - } else { - asc_dvc->init_sdtr &= ~tid_bit; - } - - if (orig_init_sdtr != asc_dvc->init_sdtr) - AscAsyncFix(asc_dvc, sdev); - } - - if (sdev->tagged_supported) { - if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng |= tid_bit; - asc_dvc->use_tagged_qng |= tid_bit; - } - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - asc_dvc->max_dvc_qng[sdev->id]); - } - } else { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng &= ~tid_bit; - asc_dvc->use_tagged_qng &= ~tid_bit; - } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); - } - - if ((sdev->lun == 0) && - (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { - AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, - asc_dvc->use_tagged_qng); - AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, - asc_dvc->cfg->can_tagged_qng); + printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_dvc->max_dvc_qng[sdev->id] = - asc_dvc->cfg->max_tag_qng[sdev->id]; - AscWriteLramByte(asc_dvc->iop_base, - (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), - asc_dvc->max_dvc_qng[sdev->id]); - } -} + printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", + h->can_tagged_qng, h->cmd_qng_enabled); + printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", + h->disc_enable, h->sdtr_enable); -/* - * Wide Transfers - * - * If the EEPROM enabled WDTR for the device and the device supports wide - * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and - * write the new value to the microcode. - */ -static void -advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) -{ - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; + printk + (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", + h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, + h->chip_version); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + printk + (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", + to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, + h->mcode_date); - /* - * Clear the microcode SDTR and WDTR negotiation done indicators for - * the target to cause it to negotiate with the new setting set above. - * WDTR when accepted causes the target to enter asynchronous mode, so - * SDTR must be negotiated. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + printk(" mcode_version %d, overrun_buf 0x%lx\n", + h->mcode_version, (ulong)h->overrun_buf); } /* - * Synchronous Transfers - * - * If the EEPROM enabled SDTR for the device and the device - * supports synchronous transfers, then turn on the device's - * 'sdtr_able' bit. Write the new value to the microcode. + * asc_prt_asc_scsi_q() */ -static void -advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; - - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - - /* - * Clear the microcode "SDTR negotiation" done indicator for the - * target to cause it to negotiate with the new setting set above. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); -} + ASC_SG_HEAD *sgp; + int i; -/* - * PPR (Parallel Protocol Request) Capable - * - * If the device supports DT mode, then it must be PPR capable. - * The PPR message will be used in place of the SDTR and WDTR - * messages to negotiate synchronous speed and offset, transfer - * width, and protocol options. - */ -static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, - AdvPortAddr iop_base, unsigned short tidmask) -{ - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); - adv_dvc->ppr_able |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); -} + printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); -static void -advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) -{ - AdvPortAddr iop_base = adv_dvc->iop_base; - unsigned short tidmask = 1 << sdev->id; + printk + (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", + q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, + q->q2.tag_code); - if (sdev->lun == 0) { - /* - * Handle WDTR, SDTR, and Tag Queuing. If the feature - * is enabled in the EEPROM and the device supports the - * feature, then enable it in the microcode. - */ + printk + (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->q1.data_addr), + (ulong)le32_to_cpu(q->q1.data_cnt), + (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); - if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) - advansys_wide_enable_wdtr(iop_base, tidmask); - if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) - advansys_wide_enable_sdtr(iop_base, tidmask); - if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) - advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", + (ulong)q->cdbptr, q->q2.cdb_len, + (ulong)q->sg_head, q->q1.sg_queue_cnt); - /* - * Tag Queuing is disabled for the BIOS which runs in polled - * mode and would see no benefit from Tag Queuing. Also by - * disabling Tag Queuing in the BIOS devices with Tag Queuing - * bugs will at least work with the BIOS. - */ - if ((adv_dvc->tagqng_able & tidmask) && - sdev->tagged_supported) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, - cfg_word); - AdvWriteByteLram(iop_base, - ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, - adv_dvc->max_dvc_qng); + if (q->sg_head) { + sgp = q->sg_head; + printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); + printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, + sgp->queue_cnt); + for (i = 0; i < sgp->entry_cnt; i++) { + printk(" [%u]: addr 0x%lx, bytes %lu\n", + i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), + (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); } - } - if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - adv_dvc->max_dvc_qng); - } else { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } } /* - * Set the number of commands to queue per device for the - * specified host adapter. + * asc_prt_asc_qdone_info() */ -static int advansys_slave_configure(struct scsi_device *sdev) +static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) { - asc_board_t *boardp = ASC_BOARDP(sdev->host); - boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; - - /* - * Save a pointer to the sdev and set its initial/maximum - * queue depth. Only save the pointer for a lun0 dev though. - */ - if (sdev->lun == 0) - boardp->device[sdev->id] = sdev; - - if (ASC_NARROW_BOARD(boardp)) - advansys_narrow_slave_configure(sdev, - &boardp->dvc_var.asc_dvc_var); - else - advansys_wide_slave_configure(sdev, - &boardp->dvc_var.adv_dvc_var); - - return 0; + printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); + printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", + (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, + q->d2.tag_code); + printk + (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", + q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); } /* - * Execute a single 'Scsi_Cmnd'. - * - * The function 'done' is called when the request has been completed. - * - * Scsi_Cmnd: - * - * host - board controlling device - * device - device to send command - * target - target of device - * lun - lun of device - * cmd_len - length of SCSI CDB - * cmnd - buffer for SCSI 8, 10, or 12 byte CDB - * use_sg - if non-zero indicates scatter-gather request with use_sg elements - * - * if (use_sg == 0) { - * request_buffer - buffer address for request - * request_bufflen - length of request buffer - * } else { - * request_buffer - pointer to scatterlist structure - * } - * - * sense_buffer - sense command buffer - * - * result (4 bytes of an int): - * Byte Meaning - * 0 SCSI Status Byte Code - * 1 SCSI One Byte Message Code - * 2 Host Error Code - * 3 Mid-Level Error Code - * - * host driver fields: - * SCp - Scsi_Pointer used for command processing status - * scsi_done - used to save caller's done function - * host_scribble - used for pointer to another struct scsi_cmnd - * - * If this function returns ASC_NOERROR the request will be completed - * from the interrupt handler. - * - * If this function returns ASC_ERROR the host error code has been set, - * and the called must call asc_scsi_done. + * asc_prt_adv_dvc_var() * - * If ASC_BUSY is returned the request will be returned to the midlayer - * and re-tried later. + * Display an ADV_DVC_VAR structure. */ -static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) { - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ADV_SCSI_REQ_Q *adv_scsiqp; - struct scsi_device *device; - int ret; - - ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", - (ulong)scp, (ulong)scp->scsi_done); - - boardp = ASC_BOARDP(scp->device->host); - device = boardp->device[scp->device->id]; + printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); - if (ASC_NARROW_BOARD(boardp)) { - /* - * Build and execute Narrow Board request. - */ + printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", + (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", + (ulong)h->isr_callback, (unsigned)h->sdtr_able, + (unsigned)h->wdtr_able); - /* - * Build Asc Library request structure using the - * global structures 'asc_scsi_req' and 'asc_sg_head'. - * - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - * - * asc_build_req() can not return ASC_BUSY. - */ - if (asc_build_req(boardp, scp) == ASC_ERROR) { - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", + (unsigned)h->start_motor, + (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); - switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } else { - /* - * Build and execute Wide Board request. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", + (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, + (ulong)h->carr_freelist); - /* - * Build and get a pointer to an Adv Library request structure. - * - * If the request is successfully built then send it below, - * otherwise return with an error. - */ - switch (adv_build_req(boardp, scp, &adv_scsiqp)) { - case ASC_NOERROR: - ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_BUSY\n"); - /* - * The asc_stats fields 'adv_build_noreq' and - * 'adv_build_nosg' count wide board busy conditions. - * They are updated in adv_build_req and - * adv_get_sglist, respectively. - */ - return ASC_BUSY; - case ASC_ERROR: - default: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_ERROR\n"); - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", + (ulong)h->icq_sp, (ulong)h->irq_sp); - switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } + printk(" no_scam 0x%x, tagqng_able 0x%x\n", + (unsigned)h->no_scam, (unsigned)h->tagqng_able); - ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); - return ret; + printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", + (unsigned)h->chip_scsi_id, (ulong)h->cfg); } /* - * Build a request structure for the Asc Library (Narrow Board). - * - * The global structures 'asc_scsi_q' and 'asc_sg_head' are - * used to build the request. + * asc_prt_adv_dvc_cfg() * - * If an error occurs, then return ASC_ERROR. + * Display an ADV_DVC_CFG structure. */ -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) { - /* - * Mutually exclusive access is required to 'asc_scsi_q' and - * 'asc_sg_head' until after the request is started. - */ - memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); - - /* - * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. - */ - asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); - - /* - * Build the ASC_SCSI_Q request. - */ - asc_scsi_q.cdbptr = &scp->cmnd[0]; - asc_scsi_q.q2.cdb_len = scp->cmd_len; - asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); - asc_scsi_q.q1.target_lun = scp->device->lun; - asc_scsi_q.q2.target_ix = - ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); - asc_scsi_q.q1.sense_addr = - cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); - - /* - * If there are any outstanding requests for the current target, - * then every 255th request send an ORDERED request. This heuristic - * tries to retain the benefit of request sorting while preventing - * request starvation. 255 is the max number of tags or pending commands - * a device may have outstanding. - * - * The request count is incremented below for every successfully - * started request. - * - */ - if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && - (boardp->reqcnt[scp->device->id] % 255) == 0) { - asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; - } else { - asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; - } - - /* - * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q.q1.sg_queue_cnt = 0; - asc_scsi_q.sg_head = NULL; - } else { - /* - * CDB scatter-gather request list. - */ - int sgcnt; - int use_sg; - struct scatterlist *slp; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - - if (use_sg > scp->device->host->sg_tablesize) { - ASC_PRINT3("asc_build_req: board %d: use_sg %d > " - "sg_tablesize %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); - return ASC_ERROR; - } - - ASC_STATS(scp->device->host, sg_cnt); - - /* - * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q - * structure to point to it. - */ - memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_scsi_q.q1.cntl |= QC_SG_HEAD; - asc_scsi_q.sg_head = &asc_sg_head; - asc_scsi_q.q1.data_cnt = 0; - asc_scsi_q.q1.data_addr = 0; - /* This is a byte value, otherwise it would need to be swapped. */ - asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; - ASC_STATS_ADD(scp->device->host, sg_elem, - asc_sg_head.entry_cnt); + printk(" disc_enable 0x%x, termination 0x%x\n", + h->disc_enable, h->termination); - /* - * Convert scatter-gather list into ASC_SG_HEAD list. - */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { - asc_sg_head.sg_list[sgcnt].addr = - cpu_to_le32(sg_dma_address(slp)); - asc_sg_head.sg_list[sgcnt].bytes = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - } - } + printk(" chip_version 0x%x, mcode_date 0x%x\n", + h->chip_version, h->mcode_date); - ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", + h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); - return ASC_NOERROR; + printk(" control_flag 0x%x\n", h->control_flag); } /* - * Build a request structure for the Adv Library (Wide Board). - * - * If an adv_req_t can not be allocated to issue the request, - * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * asc_prt_adv_scsi_req_q() * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the - * microcode for DMA addresses or math operations are byte swapped - * to little-endian order. + * Display an ADV_SCSI_REQ_Q structure. */ -static int -adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, - ADV_SCSI_REQ_Q **adv_scsiqpp) +static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) { - adv_req_t *reqp; - ADV_SCSI_REQ_Q *scsiqp; - int i; - int ret; - - /* - * Allocate an adv_req_t structure from the board to execute - * the command. - */ - if (boardp->adv_reqp == NULL) { - ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); - ASC_STATS(scp->device->host, adv_build_noreq); - return ASC_BUSY; - } else { - reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp->next_reqp; - reqp->next_reqp = NULL; - } - - /* - * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. - */ - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - - /* - * Initialize the structure. - */ - scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; - - /* - * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. - */ - scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); - - /* - * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. - */ - reqp->cmndp = scp; - - /* - * Build the ADV_SCSI_REQ_Q request. - */ - - /* Set CDB length and copy it to the request structure. */ - scsiqp->cdb_len = scp->cmd_len; - /* Copy first 12 CDB bytes to cdb[]. */ - for (i = 0; i < scp->cmd_len && i < 12; i++) { - scsiqp->cdb[i] = scp->cmnd[i]; - } - /* Copy last 4 CDB bytes, if present, to cdb16[]. */ - for (; i < scp->cmd_len; i++) { - scsiqp->cdb16[i - 12] = scp->cmnd[i]; - } - - scsiqp->target_id = scp->device->id; - scsiqp->target_lun = scp->device->lun; - - scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - scsiqp->sense_len = sizeof(scp->sense_buffer); + int sg_blk_cnt; + struct asc_sg_block *sg_ptr; - /* - * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ + printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", + q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); - scsiqp->sg_list_ptr = NULL; - scsiqp->sg_real_addr = 0; - ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - } else { - /* - * CDB scatter-gather request list. - */ - struct scatterlist *slp; - int use_sg; + printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", + q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->data_cnt), + (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - if (use_sg > ADV_MAX_SG_LIST) { - ASC_PRINT3("adv_build_req: board %d: use_sg %d > " - "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); + printk + (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", + q->cdb_len, q->done_status, q->host_status, q->scsi_status); - /* - * Free the 'adv_req_t' structure by adding it back - * to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; + printk(" sg_working_ix 0x%x, target_cmd %u\n", + q->sg_working_ix, q->target_cmd); - return ASC_ERROR; - } + printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", + (ulong)le32_to_cpu(q->scsiq_rptr), + (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); - ret = adv_get_sglist(boardp, reqp, scp, use_sg); - if (ret != ADV_SUCCESS) { + /* Display the request's ADV_SG_BLOCK structures. */ + if (q->sg_list_ptr != NULL) { + sg_blk_cnt = 0; + while (1) { /* - * Free the adv_req_t structure by adding it back to - * the board free list. + * 'sg_ptr' is a physical address. Convert it to a virtual + * address by indexing 'sg_blk_cnt' into the virtual address + * array 'sg_list_ptr'. + * + * XXX - Assumes all SG physical blocks are virtually contiguous. */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - return ret; + sg_ptr = + &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); + asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); + if (sg_ptr->sg_ptr == 0) { + break; + } + sg_blk_cnt++; } - - ASC_STATS(scp->device->host, sg_cnt); - ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); } - - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); - - *adv_scsiqpp = scsiqp; - - return ASC_NOERROR; } /* - * Build scatter-gather list for Adv Library (Wide Board). - * - * Additional ADV_SG_BLOCK structures will need to be allocated - * if the total number of scatter-gather elements exceeds - * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are - * assumed to be physically contiguous. + * asc_prt_adv_sgblock() * - * Return: - * ADV_SUCCESS(1) - SG List successfully created - * ADV_ERROR(-1) - SG List creation failed + * Display an ADV_SG_BLOCK structure. */ -static int -adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, - int use_sg) +static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) { - adv_sgblk_t *sgblkp; - ADV_SCSI_REQ_Q *scsiqp; - struct scatterlist *slp; - int sg_elem_cnt; - ADV_SG_BLOCK *sg_block, *prev_sg_block; - ADV_PADDR sg_block_paddr; int i; - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; - sg_elem_cnt = use_sg; - prev_sg_block = NULL; - reqp->sgblkp = NULL; - - for (;;) { - /* - * Allocate a 'adv_sgblk_t' structure from the board free - * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK - * (15) scatter-gather elements. - */ - if ((sgblkp = boardp->adv_sgblkp) == NULL) { - ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); - ASC_STATS(scp->device->host, adv_build_nosg); - - /* - * Allocation failed. Free 'adv_sgblk_t' structures - * already allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; - } - return ASC_BUSY; - } - - /* Complete 'adv_sgblk_t' board allocation. */ - boardp->adv_sgblkp = sgblkp->next_sgblkp; - sgblkp->next_sgblkp = NULL; - - /* - * Get 8 byte aligned virtual and physical addresses - * for the allocated ADV_SG_BLOCK structure. - */ - sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); - sg_block_paddr = virt_to_bus(sg_block); - - /* - * Check if this is the first 'adv_sgblk_t' for the - * request. - */ - if (reqp->sgblkp == NULL) { - /* Request's first scatter-gather block. */ - reqp->sgblkp = sgblkp; - - /* - * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical - * address pointers. - */ - scsiqp->sg_list_ptr = sg_block; - scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); - } else { - /* Request's second or later scatter-gather block. */ - sgblkp->next_sgblkp = reqp->sgblkp; - reqp->sgblkp = sgblkp; - - /* - * Point the previous ADV_SG_BLOCK structure to - * the newly allocated ADV_SG_BLOCK structure. - */ - prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); - } - - for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { - sg_block->sg_list[i].sg_addr = - cpu_to_le32(sg_dma_address(slp)); - sg_block->sg_list[i].sg_count = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - - if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ - sg_block->sg_cnt = i + 1; - sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ - return ADV_SUCCESS; - } - slp++; - } - sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; - prev_sg_block = sg_block; + printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", + (ulong)b, sgblockno); + printk(" sg_cnt %u, sg_ptr 0x%lx\n", + b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); + BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); + if (b->sg_ptr != 0) + BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); + for (i = 0; i < b->sg_cnt; i++) { + printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", + i, (ulong)b->sg_list[i].sg_addr, + (ulong)b->sg_list[i].sg_count); } } /* - * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * asc_prt_hex() * - * Interrupt callback function for the Narrow SCSI Asc Library. + * Print hexadecimal output in 4 byte groupings 32 bytes + * or 8 double-words per line. */ -static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +static void asc_prt_hex(char *f, uchar *s, int l) { - asc_board_t *boardp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - - ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", - (ulong)asc_dvc_varp, (ulong)qdonep); - ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - */ - scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); - ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); - - if (scp == NULL) { - ASC_PRINT("asc_isr_callback: scp is NULL\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + int i; + int j; + int k; + int m; - boardp = ASC_BOARDP(shost); - BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + printk("%s: (%d bytes)\n", f, l); - /* - * 'qdonep' contains the command's ending status. - */ - switch (qdonep->d3.done_stat) { - case QD_NO_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; + for (i = 0; i < l; i += 32) { - /* - * Check for an underrun condition. - * - * If there was no error and an underrun condition, then - * return the number of underrun bytes. - */ - if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && - qdonep->remain_bytes <= scp->request_bufflen) { - ASC_DBG1(1, - "asc_isr_callback: underrun condition %u bytes\n", - (unsigned)qdonep->remain_bytes); - scp->resid = qdonep->remain_bytes; + /* Display a maximum of 8 double-words per line. */ + if ((k = (l - i) / 4) >= 8) { + k = 8; + m = 0; + } else { + m = (l - i) % 4; } - break; - case QD_WITH_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); - switch (qdonep->d3.host_stat) { - case QHSTA_NO_ERROR: - if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(qdonep->d3.scsi_stat); - } else { - scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); - } - break; + for (j = 0; j < k; j++) { + printk(" %2.2X%2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); + } + switch (m) { + case 0: default: - /* QHSTA error occurred */ - ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", - qdonep->d3.host_stat); - scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + case 1: + printk(" %2.2X", (unsigned)s[i + (j * 4)]); + break; + case 2: + printk(" %2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1]); + break; + case 3: + printk(" %2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); break; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - - default: - ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", - qdonep->d3.done_stat); - scp->result = - HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - } - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - qdonep->d3.done_stat == QD_NO_ERROR && - qdonep->d3.host_stat == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + printk("\n"); } - - asc_scsi_done(scp); - - return; } +#endif /* ADVANSYS_DEBUG */ /* - * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * advansys_info() * - * Callback function for the Wide SCSI Adv Library. + * 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. */ -static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +static const char *advansys_info(struct Scsi_Host *shost) { + static char info[ASC_INFO_SIZE]; asc_board_t *boardp; - adv_req_t *reqp; - adv_sgblk_t *sgblkp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - ADV_DCNT resid_cnt; - - ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", - (ulong)adv_dvc_varp, (ulong)scsiqp); - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - - /* - * Get the adv_req_t structure for the command that has been - * completed. The adv_req_t structure actually contains the - * completed ADV_SCSI_REQ_Q structure. - */ - reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); - ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); - if (reqp == NULL) { - ASC_PRINT("adv_isr_callback: reqp is NULL\n"); - return; - } - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - * - * Note: The adv_req_t request structure and adv_sgblk_t structure, - * if any, are dropped, because a board structure pointer can not be - * determined. - */ - scp = reqp->cmndp; - ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); - if (scp == NULL) { - ASC_PRINT - ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + char *busname; + char *widename = NULL; boardp = ASC_BOARDP(shost); - BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); - - /* - * 'done_status' contains the command's ending status. - */ - switch (scsiqp->done_status) { - case QD_NO_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; - + if (ASC_NARROW_BOARD(boardp)) { + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DBG(1, "advansys_info: begin\n"); + 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"; + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", + ASC_VERSION, busname, + (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq, shost->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 %d\n", boardp->id, + asc_dvc_varp->bus_type); + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", + ASC_VERSION, busname, (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq); + } + } else { /* - * Check for an underrun condition. + * Wide Adapter Information * - * If there was no error and an underrun condition, then - * then return the number of underrun bytes. + * 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. */ - resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { - ASC_DBG1(1, - "adv_isr_callback: underrun condition %lu bytes\n", - (ulong)resid_cnt); - scp->resid = resid_cnt; - } - break; - - case QD_WITH_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); - switch (scsiqp->host_status) { - case QHSTA_NO_ERROR: - if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(scsiqp->scsi_status); - } else { - scp->result = STATUS_BYTE(scsiqp->scsi_status); - } - break; - - default: - /* Some other QHSTA error occurred. */ - ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", - scsiqp->host_status); - scp->result = HOST_BYTE(DID_BAD_TARGET); - break; + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { + widename = "Ultra-Wide"; + } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { + widename = "Ultra2-Wide"; + } else { + widename = "Ultra3-Wide"; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); - break; - - default: - ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", - scsiqp->done_status); - scp->result = - HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); - break; - } - - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - scsiqp->done_status == QD_NO_ERROR && - scsiqp->host_status == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); - } - - asc_scsi_done(scp); - - /* - * Free all 'adv_sgblk_t' structures allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; + 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 + boardp->asc_n_io_port - 1, shost->irq); } - - /* - * Free the adv_req_t structure used with the command by adding - * it back to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - ASC_DBG(1, "adv_isr_callback: done\n"); - - return; + BUG_ON(strlen(info) >= ASC_INFO_SIZE); + ASC_DBG(1, "advansys_info: end\n"); + return info; } +#ifdef CONFIG_PROC_FS /* - * adv_async_callback() - Adv Library asynchronous event callback function. + * asc_prt_line() + * + * If 'cp' is NULL print to the console, otherwise print to a buffer. + * + * Return 0 if printing to the console, otherwise return the number of + * bytes written to the buffer. + * + * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack + * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. */ -static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +static int asc_prt_line(char *buf, int buflen, char *fmt, ...) { - switch (code) { - case ADV_ASYNC_SCSI_BUS_RESET_DET: - /* - * The firmware detected a SCSI Bus reset. - */ - ASC_DBG(0, - "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); - break; - - case ADV_ASYNC_RDMA_FAILURE: - /* - * Handle RDMA failure by resetting the SCSI Bus and - * possibly the chip if it is unresponsive. Log the error - * with a unique code. - */ - ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); - AdvResetChipAndSB(adv_dvc_varp); - break; - - case ADV_HOST_SCSI_BUS_RESET: - /* - * Host generated SCSI bus reset occurred. - */ - ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); - break; + va_list args; + int ret; + char s[ASC_PRTLINE_SIZE]; - default: - ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); - break; + va_start(args, fmt); + ret = vsprintf(s, fmt, args); + BUG_ON(ret >= ASC_PRTLINE_SIZE); + if (buf == NULL) { + (void)printk(s); + ret = 0; + } else { + ret = min(buflen, ret); + memcpy(buf, s, ret); } + va_end(args); + return ret; } -#ifdef CONFIG_PROC_FS /* * asc_prt_board_devices() * @@ -5548,159 +4212,7 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, return cnt; } -/* - * asc_prt_line() - * - * If 'cp' is NULL print to the console, otherwise print to a buffer. - * - * Return 0 if printing to the console, otherwise return the number of - * bytes written to the buffer. - * - * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack - * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. - */ -static int asc_prt_line(char *buf, int buflen, char *fmt, ...) -{ - va_list args; - int ret; - char s[ASC_PRTLINE_SIZE]; - - va_start(args, fmt); - ret = vsprintf(s, fmt, args); - BUG_ON(ret >= ASC_PRTLINE_SIZE); - if (buf == NULL) { - (void)printk(s); - ret = 0; - } else { - ret = min(buflen, ret); - memcpy(buf, s, ret); - } - va_end(args); - return ret; -} -#endif /* CONFIG_PROC_FS */ - -/* - * void - * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Output an ASC_SCSI_Q structure to the chip - */ -static void -DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) -{ - int i; - - ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 4 || i == 20) { - continue; - } - outpw(iop_base + IOP_RAM_DATA, - ((ushort)outbuf[i + 1] << 8) | outbuf[i]); - } -} - -/* - * void - * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Input an ASC_QDONE_INFO structure from the chip - */ -static void -DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 10) { - continue; - } - word = inpw(iop_base + IOP_RAM_DATA); - inbuf[i] = word & 0xff; - inbuf[i + 1] = (word >> 8) & 0xff; - } - ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); -} - -/* - * Return the BIOS address of the adapter at the specified - * I/O port and with the specified bus type. - */ -static unsigned short __devinit -AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) -{ - unsigned short cfg_lsw; - unsigned short bios_addr; - - /* - * The PCI BIOS is re-located by the motherboard BIOS. Because - * of this the driver can not determine where a PCI BIOS is - * loaded and executes. - */ - if (bus_type & ASC_IS_PCI) - return 0; - -#ifdef CONFIG_ISA - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - cfg_lsw &= 0x000F; - bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; - return bios_addr; - } -#endif /* CONFIG_ISA */ - - cfg_lsw = AscGetChipCfgLsw(iop_base); - - /* - * ISA PnP uses the top bit as the 32K BIOS flag - */ - if (bus_type == ASC_IS_ISAPNP) - cfg_lsw &= 0x7FFF; - bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; - return bios_addr; -} - -/* - * DvcGetPhyAddr() - * - * Return the physical address of 'vaddr' and set '*lenp' to the - * number of physically contiguous bytes that follow 'vaddr'. - * 'flag' indicates the type of structure whose physical address - * is being translated. - * - * Note: Because Linux currently doesn't page the kernel and all - * kernel buffers are physically contiguous, leave '*lenp' unchanged. - */ -ADV_PADDR -DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, - uchar *vaddr, ADV_SDCNT *lenp, int flag) -{ - ADV_PADDR paddr; - - paddr = virt_to_bus(vaddr); - - ASC_DBG4(4, - "DvcGetPhyAddr: vaddr 0x%lx, lenp 0x%lx *lenp %lu, paddr 0x%lx\n", - (ulong)vaddr, (ulong)lenp, (ulong)*((ulong *)lenp), - (ulong)paddr); - - return paddr; -} - #ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS /* * asc_prt_board_stats() * @@ -5803,420 +4315,543 @@ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) return totlen; } -#endif /* CONFIG_PROC_FS */ #endif /* ADVANSYS_STATS */ -#ifdef ADVANSYS_DEBUG /* - * asc_prt_scsi_host() + * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} + * + * *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. */ -static void asc_prt_scsi_host(struct Scsi_Host *s) +static int +advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, + off_t offset, int length, int inout) { asc_board_t *boardp; + char *cp; + int cplen; + int cnt; + int totcnt; + int leftlen; + char *curbuf; + off_t advoffset; - boardp = ASC_BOARDP(s); + ASC_DBG(1, "advansys_proc_info: begin\n"); - printk("Scsi_Host at addr 0x%lx\n", (ulong)s); - printk(" host_busy %u, host_no %d, last_reset %d,\n", - s->host_busy, s->host_no, (unsigned)s->last_reset); + /* + * User write not supported. + */ + if (inout == TRUE) { + return (-ENOSYS); + } - printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", - (ulong)s->base, (ulong)s->io_port, s->irq); + /* + * User read of /proc/scsi/advansys/[0...] file. + */ - printk(" dma_channel %d, this_id %d, can_queue %d,\n", - s->dma_channel, s->this_id, s->can_queue); + boardp = ASC_BOARDP(shost); - printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", - s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); + /* Copy read data starting at the beginning of the buffer. */ + *start = buffer; + curbuf = buffer; + advoffset = 0; + totcnt = 0; + leftlen = length; - if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); - } else { - asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); + /* + * Get board configuration information. + * + * advansys_info() returns the board string from its own static buffer. + */ + cp = (char *)advansys_info(shost); + 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 %d\n", totcnt); + return totcnt; } -} - -/* - * asc_prt_scsi_cmnd() - */ -static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) -{ - printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); + advoffset += cplen; + curbuf += cnt; - printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", - (ulong)s->device->host, (ulong)s->device, s->device->id, - s->device->lun, s->device->channel); + /* + * Display Wide Board BIOS Information. + */ + if (ASC_WIDE_BOARD(boardp)) { + cp = boardp->prtbuf; + cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; + } - asc_prt_hex(" CDB", s->cmnd, s->cmd_len); + /* + * Display driver information for each device attached to the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk("sc_data_direction %u, resid %d\n", - s->sc_data_direction, s->resid); + /* + * Display EEPROM configuration for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); + /* + * Display driver configuration and information for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" serial_number 0x%x, retries %d, allowed %d\n", - (unsigned)s->serial_number, s->retries, s->allowed); +#ifdef ADVANSYS_STATS + /* + * Display driver statistics for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; +#endif /* ADVANSYS_STATS */ - printk(" timeout_per_command %d\n", s->timeout_per_command); + /* + * Display Asc Library dynamic configuration information + * for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(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 %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", - s->scsi_done, s->done, s->host_scribble, s->result); + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); + return totcnt; } +#endif /* CONFIG_PROC_FS */ -/* - * asc_prt_asc_dvc_var() - */ -static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) +static void asc_scsi_done(struct scsi_cmnd *scp) { - printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - - printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " - "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - - printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, - (unsigned)h->init_sdtr); + struct asc_board *boardp = ASC_BOARDP(scp->device->host); - printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " - "chip_no 0x%x,\n", (unsigned)h->sdtr_done, - (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, - (unsigned)h->chip_no); + if (scp->use_sg) + dma_unmap_sg(boardp->dev, + (struct scatterlist *)scp->request_buffer, + scp->use_sg, scp->sc_data_direction); + else if (scp->request_bufflen) + dma_unmap_single(boardp->dev, scp->SCp.dma_handle, + scp->request_bufflen, scp->sc_data_direction); - printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " - "%u,\n", (unsigned)h->queue_full_or_busy, - (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); + ASC_STATS(scp->device->host, done); - printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " - "in_critical_cnt %u,\n", (unsigned)h->is_in_int, - (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, - (unsigned)h->in_critical_cnt); + scp->scsi_done(scp); +} - printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " - "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, - (unsigned)h->init_state, (unsigned)h->no_scam, - (unsigned)h->pci_fix_asyn_xfer); +static void AscSetBank(PortAddr iop_base, uchar bank) +{ + uchar val; - printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); + val = AscGetChipControl(iop_base) & + (~ + (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | + CC_CHIP_RESET)); + if (bank == 1) { + val |= CC_BANK_ONE; + } else if (bank == 2) { + val |= CC_DIAG | CC_BANK_ONE; + } else { + val &= ~CC_BANK_ONE; + } + AscSetChipControl(iop_base, val); + return; } -/* - * asc_prt_asc_dvc_cfg() - */ -static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) +static void AscSetChipIH(PortAddr iop_base, ushort ins_code) { - printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - - printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", - h->can_tagged_qng, h->cmd_qng_enabled); - printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", - h->disc_enable, h->sdtr_enable); + AscSetBank(iop_base, 1); + AscWriteChipIH(iop_base, ins_code); + AscSetBank(iop_base, 0); + return; +} - printk - (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", - h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, - h->chip_version); +static int AscStartChip(PortAddr iop_base) +{ + AscSetChipControl(iop_base, 0); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + return (0); + } + return (1); +} - printk - (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", - to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, - h->mcode_date); +static int AscStopChip(PortAddr iop_base) +{ + uchar cc_val; - printk(" mcode_version %d, overrun_buf 0x%lx\n", - h->mcode_version, (ulong)h->overrun_buf); + cc_val = + AscGetChipControl(iop_base) & + (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); + AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { + return (0); + } + return (1); } -/* - * asc_prt_asc_scsi_q() - */ -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) +static int AscIsChipHalted(PortAddr iop_base) { - ASC_SG_HEAD *sgp; - int i; - - printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { + return (1); + } + } + return (0); +} - printk - (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", - q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, - q->q2.tag_code); +static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i = 10; - printk - (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->q1.data_addr), - (ulong)le32_to_cpu(q->q1.data_cnt), - (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); + iop_base = asc_dvc->iop_base; + while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) + && (i-- > 0)) { + mdelay(100); + } + AscStopChip(iop_base); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); + udelay(60); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); + AscSetChipControl(iop_base, CC_HALT); + mdelay(200); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + return (AscIsChipHalted(iop_base)); +} - printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", - (ulong)q->cdbptr, q->q2.cdb_len, - (ulong)q->sg_head, q->q1.sg_queue_cnt); +static int AscFindSignature(PortAddr iop_base) +{ + ushort sig_word; - if (q->sg_head) { - sgp = q->sg_head; - printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); - printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, - sgp->queue_cnt); - for (i = 0; i < sgp->entry_cnt; i++) { - printk(" [%u]: addr 0x%lx, bytes %lu\n", - i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), - (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); + ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureByte(iop_base)); + if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { + ASC_DBG2(1, + "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureWord(iop_base)); + sig_word = AscGetChipSignatureWord(iop_base); + if ((sig_word == (ushort)ASC_1000_ID0W) || + (sig_word == (ushort)ASC_1000_ID0W_FIX)) { + return (1); } - } + return (0); } -/* - * asc_prt_asc_qdone_info() - */ -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) +static void AscEnableInterrupt(PortAddr iop_base) { - printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); - printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", - (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, - q->d2.tag_code); - printk - (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", - q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); + ushort cfg; + + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); + return; } -/* - * asc_prt_adv_dvc_var() - * - * Display an ADV_DVC_VAR structure. - */ -static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) +static void AscDisableInterrupt(PortAddr iop_base) { - printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); + ushort cfg; - printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", - (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); + return; +} - printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", - (ulong)h->isr_callback, (unsigned)h->sdtr_able, - (unsigned)h->wdtr_able); +static uchar AscReadLramByte(PortAddr iop_base, ushort addr) +{ + unsigned char byte_data; + unsigned short word_data; - printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", - (unsigned)h->start_motor, - (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); + if (isodd_word(addr)) { + AscSetChipLramAddr(iop_base, addr - 1); + word_data = AscGetChipLramData(iop_base); + byte_data = (word_data >> 8) & 0xFF; + } else { + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + byte_data = word_data & 0xFF; + } + return byte_data; +} - printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", - (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, - (ulong)h->carr_freelist); +static ushort AscReadLramWord(PortAddr iop_base, ushort addr) +{ + ushort word_data; - printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", - (ulong)h->icq_sp, (ulong)h->irq_sp); + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + return (word_data); +} - printk(" no_scam 0x%x, tagqng_able 0x%x\n", - (unsigned)h->no_scam, (unsigned)h->tagqng_able); +#if CC_VERY_LONG_SG_LIST +static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) +{ + ushort val_low, val_high; + ASC_DCNT dword_data; - printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", - (unsigned)h->chip_scsi_id, (ulong)h->cfg); + AscSetChipLramAddr(iop_base, addr); + val_low = AscGetChipLramData(iop_base); + val_high = AscGetChipLramData(iop_base); + dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; + return (dword_data); } +#endif /* CC_VERY_LONG_SG_LIST */ -/* - * asc_prt_adv_dvc_cfg() - * - * Display an ADV_DVC_CFG structure. - */ -static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) +static void +AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) { - printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); + int i; - printk(" disc_enable 0x%x, termination 0x%x\n", - h->disc_enable, h->termination); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < words; i++) { + AscSetChipLramData(iop_base, set_wval); + } +} - printk(" chip_version 0x%x, mcode_date 0x%x\n", - h->chip_version, h->mcode_date); +static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) +{ + AscSetChipLramAddr(iop_base, addr); + AscSetChipLramData(iop_base, word_val); + return; +} - printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", - h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); +static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) +{ + ushort word_data; - printk(" control_flag 0x%x\n", h->control_flag); + if (isodd_word(addr)) { + addr--; + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0x00FF; + word_data |= (((ushort)byte_val << 8) & 0xFF00); + } else { + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0xFF00; + word_data |= ((ushort)byte_val & 0x00FF); + } + AscWriteLramWord(iop_base, addr, word_data); + return; } /* - * asc_prt_adv_scsi_req_q() + * Copy 2 bytes to LRAM. * - * Display an ADV_SCSI_REQ_Q structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when written to LRAM. */ -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) +static void +AscMemWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int words) { - int sg_blk_cnt; - struct asc_sg_block *sg_ptr; - - printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - - printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", - q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - - printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", - q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - - printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->data_cnt), - (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - - printk - (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", - q->cdb_len, q->done_status, q->host_status, q->scsi_status); - - printk(" sg_working_ix 0x%x, target_cmd %u\n", - q->sg_working_ix, q->target_cmd); - - printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", - (ulong)le32_to_cpu(q->scsiq_rptr), - (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); + int i; - /* Display the request's ADV_SG_BLOCK structures. */ - if (q->sg_list_ptr != NULL) { - sg_blk_cnt = 0; - while (1) { - /* - * 'sg_ptr' is a physical address. Convert it to a virtual - * address by indexing 'sg_blk_cnt' into the virtual address - * array 'sg_list_ptr'. - * - * XXX - Assumes all SG physical blocks are virtually contiguous. - */ - sg_ptr = - &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); - asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); - if (sg_ptr->sg_ptr == 0) { - break; - } - sg_blk_cnt++; - } + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + /* + * On a little-endian system the second argument below + * produces a little-endian ushort which is written to + * LRAM in little-endian order. On a big-endian system + * the second argument produces a big-endian ushort which + * is "transparently" byte-swapped by outpw() and written + * in little-endian order to LRAM. + */ + outpw(iop_base + IOP_RAM_DATA, + ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); } + return; } /* - * asc_prt_adv_sgblock() + * Copy 4 bytes to LRAM. * - * Display an ADV_SG_BLOCK structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when writen to LRAM. */ -static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) +static void +AscMemDWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int dwords) { int i; - printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", - (ulong)b, sgblockno); - printk(" sg_cnt %u, sg_ptr 0x%lx\n", - b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); - BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); - if (b->sg_ptr != 0) - BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); - for (i = 0; i < b->sg_cnt; i++) { - printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", - i, (ulong)b->sg_list[i].sg_addr, - (ulong)b->sg_list[i].sg_count); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 4 * dwords; i += 4) { + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ } + return; } /* - * asc_prt_hex() + * Copy 2 bytes from LRAM. * - * Print hexadecimal output in 4 byte groupings 32 bytes - * or 8 double-words per line. + * The source data is assumed to be in little-endian order in LRAM + * and is maintained in little-endian order when written to memory. */ -static void asc_prt_hex(char *f, uchar *s, int l) +static void +AscMemWordCopyPtrFromLram(PortAddr iop_base, + ushort s_addr, uchar *d_buffer, int words) { int i; - int j; - int k; - int m; - - printk("%s: (%d bytes)\n", f, l); - - for (i = 0; i < l; i += 32) { - - /* Display a maximum of 8 double-words per line. */ - if ((k = (l - i) / 4) >= 8) { - k = 8; - m = 0; - } else { - m = (l - i) % 4; - } - - for (j = 0; j < k; j++) { - printk(" %2.2X%2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - } - - switch (m) { - case 0: - default: - break; - case 1: - printk(" %2.2X", (unsigned)s[i + (j * 4)]); - break; - case 2: - printk(" %2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1]); - break; - case 3: - printk(" %2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - break; - } + ushort word; - printk("\n"); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + word = inpw(iop_base + IOP_RAM_DATA); + d_buffer[i] = word & 0xff; + d_buffer[i + 1] = (word >> 8) & 0xff; } -} -#endif /* ADVANSYS_DEBUG */ - -static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) -{ - PortAddr eisa_cfg_iop; - - eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) (ASC_EISA_CFG_IOP_MASK); - return (inpw(eisa_cfg_iop)); + return; } -static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) { - ushort cfg_lsw; + ASC_DCNT sum; + int i; - if (AscGetChipScsiID(iop_base) == new_host_id) { - return (new_host_id); + sum = 0L; + for (i = 0; i < words; i++, s_addr += 2) { + sum += AscReadLramWord(iop_base, s_addr); } - cfg_lsw = AscGetChipCfgLsw(iop_base); - cfg_lsw &= 0xF8FF; - cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipScsiID(iop_base)); + return (sum); } -static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) { - unsigned char sc; - - AscSetBank(iop_base, 1); - sc = inp(iop_base + IOP_REG_SC); - AscSetBank(iop_base, 0); - return sc; -} + uchar i; + ushort s_addr; + PortAddr iop_base; + ushort warn_code; -static unsigned char __devinit -AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) -{ - if (bus_type & ASC_IS_EISA) { - PortAddr eisa_iop; - unsigned char revision; - eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) ASC_EISA_REV_IOP_MASK; - revision = inp(eisa_iop); - return ASC_CHIP_MIN_VER_EISA - 1 + revision; + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, + (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * + 64) >> 1)); + i = ASC_MIN_ACTIVE_QNO; + s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(i - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); } - return AscGetChipVerNo(iop_base); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)ASC_QLINK_END); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)asc_dvc->max_total_qng); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i <= (uchar)(asc_dvc->max_total_qng + 3); + i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); + } + return warn_code; } static ASC_DCNT @@ -6247,865 +4882,6 @@ AscLoadMicroCode(PortAddr iop_base, return (chksum); } -static int AscFindSignature(PortAddr iop_base) -{ - ushort sig_word; - - ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureByte(iop_base)); - if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { - ASC_DBG2(1, - "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureWord(iop_base)); - sig_word = AscGetChipSignatureWord(iop_base); - if ((sig_word == (ushort)ASC_1000_ID0W) || - (sig_word == (ushort)ASC_1000_ID0W_FIX)) { - return (1); - } - } - return (0); -} - -static void __devinit AscToggleIRQAct(PortAddr iop_base) -{ - AscSetChipStatus(iop_base, CIW_IRQ_ACT); - AscSetChipStatus(iop_base, 0); - return; -} - -static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) -{ - ushort cfg_lsw; - uchar chip_irq; - - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); - if ((chip_irq == 13) || (chip_irq > 15)) { - return (0); - } - return (chip_irq); - } - if ((bus_type & ASC_IS_VL) != 0) { - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); - if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { - return (0); - } - return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); - } - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); - if (chip_irq == 3) - chip_irq += (uchar)2; - return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); -} - -static uchar __devinit -AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) -{ - ushort cfg_lsw; - - if ((bus_type & ASC_IS_VL) != 0) { - if (irq_no != 0) { - if ((irq_no < ASC_MIN_IRQ_NO) - || (irq_no > ASC_MAX_IRQ_NO)) { - irq_no = 0; - } else { - irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); - } - } - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); - cfg_lsw |= (ushort)0x0010; - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); - cfg_lsw |= (ushort)((irq_no & 0x07) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - return (AscGetChipIRQ(iop_base, bus_type)); - } - if ((bus_type & (ASC_IS_ISA)) != 0) { - if (irq_no == 15) - irq_no -= (uchar)2; - irq_no -= (uchar)ASC_MIN_IRQ_NO; - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); - cfg_lsw |= (ushort)((irq_no & 0x03) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipIRQ(iop_base, bus_type)); - } - return (0); -} - -#ifdef CONFIG_ISA -static void __devinit AscEnableIsaDma(uchar dma_channel) -{ - if (dma_channel < 4) { - outp(0x000B, (ushort)(0xC0 | dma_channel)); - outp(0x000A, dma_channel); - } else if (dma_channel < 8) { - outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); - outp(0x00D4, (ushort)(dma_channel - 4)); - } - return; -} -#endif /* CONFIG_ISA */ - -static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) -{ - EXT_MSG ext_msg; - EXT_MSG out_msg; - ushort halt_q_addr; - int sdtr_accept; - ushort int_halt_code; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - uchar tag_code; - uchar q_status; - uchar halt_qp; - uchar sdtr_data; - uchar target_ix; - uchar q_cntl, tid_no; - uchar cur_dvc_qng; - uchar asyn_sdtr; - uchar scsi_status; - asc_board_t *boardp; - - BUG_ON(!asc_dvc->drv_ptr); - boardp = asc_dvc->drv_ptr; - - iop_base = asc_dvc->iop_base; - int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); - - halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); - halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); - target_ix = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TARGET_IX)); - q_cntl = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - tid_no = ASC_TIX_TO_TID(target_ix); - target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; - } else { - asyn_sdtr = 0; - } - if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, 0, tid_no); - boardp->sdtr_data[tid_no] = 0; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGIN_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - - if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_SDTR && - ext_msg.msg_len == MS_SDTR_LEN) { - sdtr_accept = TRUE; - if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { - - sdtr_accept = FALSE; - ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; - } - if ((ext_msg.xfer_period < - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]) - || (ext_msg.xfer_period > - asc_dvc->sdtr_period_tbl[asc_dvc-> - max_sdtr_index])) { - sdtr_accept = FALSE; - ext_msg.xfer_period = - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]; - } - if (sdtr_accept) { - sdtr_data = - AscCalSDTRData(asc_dvc, ext_msg.xfer_period, - ext_msg.req_ack_offset); - if ((sdtr_data == 0xFF)) { - - q_cntl |= QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, - tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - } - if (ext_msg.req_ack_offset == 0) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - } else { - if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - } else { - - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - ext_msg.xfer_period, - ext_msg.req_ack_offset); - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - } - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_WDTR && - ext_msg.msg_len == MS_WDTR_LEN) { - - ext_msg.wdtr_width = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else { - - ext_msg.msg_type = MESSAGE_REJECT; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } - } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { - - q_cntl |= QC_REQ_SENSE; - - if ((asc_dvc->init_sdtr & target_id) != 0) { - - asc_dvc->sdtr_done &= ~target_id; - - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - - tag_code = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_TAG_CODE)); - tag_code &= 0xDC; - if ((asc_dvc->pci_fix_asyn_xfer & target_id) - && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) - ) { - - tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT - | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); - - } - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TAG_CODE), - tag_code); - - q_status = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_STATUS)); - q_status |= (QS_READY | QS_BUSY); - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - q_status); - - scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); - - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { - - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&out_msg, - sizeof(EXT_MSG) >> 1); - - if ((out_msg.msg_type == EXTENDED_MESSAGE) && - (out_msg.msg_len == MS_SDTR_LEN) && - (out_msg.msg_req == EXTENDED_SDTR)) { - - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - q_cntl &= ~QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { - - scsi_status = AscReadLramByte(iop_base, - (ushort)((ushort)halt_q_addr + - (ushort) - ASC_SCSIQ_SCSI_STATUS)); - cur_dvc_qng = - AscReadLramByte(iop_base, - (ushort)((ushort)ASC_QADR_BEG + - (ushort)target_ix)); - if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { - - scsi_busy = AscReadLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B); - scsi_busy |= target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, scsi_busy); - asc_dvc->queue_full_or_busy |= target_id; - - if (scsi_status == SAM_STAT_TASK_SET_FULL) { - if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { - cur_dvc_qng -= 1; - asc_dvc->max_dvc_qng[tid_no] = - cur_dvc_qng; - - AscWriteLramByte(iop_base, - (ushort)((ushort) - ASCV_MAX_DVC_QNG_BEG - + (ushort) - tid_no), - cur_dvc_qng); - - /* - * Set the device queue depth to the - * number of active requests when the - * QUEUE FULL condition was encountered. - */ - boardp->queue_full |= target_id; - boardp->queue_full_cnt[tid_no] = - cur_dvc_qng; - } - } - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#if CC_VERY_LONG_SG_LIST - else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { - uchar q_no; - ushort q_addr; - uchar sg_wk_q_no; - uchar first_sg_wk_q_no; - ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ - ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ - ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ - ushort sg_list_dwords; - ushort sg_entry_cnt; - uchar next_qp; - int i; - - q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); - if (q_no == ASC_QLINK_END) - return 0; - - q_addr = ASC_QNO_TO_QADDR(q_no); - - /* - * Convert the request's SRB pointer to a host ASC_SCSI_REQ - * structure pointer using a macro provided by the driver. - * The ASC_SCSI_REQ pointer provides a pointer to the - * host ASC_SG_HEAD structure. - */ - /* Read request's SRB pointer. */ - scsiq = (ASC_SCSI_Q *) - ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, - (ushort) - (q_addr + - ASC_SCSIQ_D_SRBPTR)))); - - /* - * Get request's first and working SG queue. - */ - sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_SG_WK_QP)); - - first_sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FIRST_SG_WK_QP)); - - /* - * Reset request's working SG queue back to the - * first SG queue. - */ - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SG_WK_QP), - first_sg_wk_q_no); - - sg_head = scsiq->sg_head; - - /* - * Set sg_entry_cnt to the number of SG elements - * that will be completed on this interrupt. - * - * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 - * SG elements. The data_cnt and data_addr fields which - * add 1 to the SG element capacity are not used when - * restarting SG handling after a halt. - */ - if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that - * will need to be handled on the next interrupt. - */ - scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); - } else { - sg_entry_cnt = scsiq->remain_sg_entry_cnt; - scsiq->remain_sg_entry_cnt = 0; - } - - /* - * Copy SG elements into the list of allocated SG queues. - * - * Last index completed is saved in scsiq->next_sg_index. - */ - next_qp = first_sg_wk_q_no; - q_addr = ASC_QNO_TO_QADDR(next_qp); - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - /* - * After very first SG queue RISC FW uses next - * SG queue first element then checks sg_list_cnt - * against zero and then decrements, so set - * sg_list_cnt 1 less than number of SG elements - * in each SG queue. - */ - scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } else { - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (scsiq->remain_sg_entry_cnt != 0) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { - scsi_sg_q.cntl |= QCSG_SG_XFER_END; - } - /* equals sg_entry_cnt * 2 */ - sg_list_dwords = sg_entry_cnt << 1; - scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; - sg_entry_cnt = 0; - } - - scsi_sg_q.q_no = next_qp; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[scsiq->next_sg_index], - sg_list_dwords); - - scsiq->next_sg_index += ASC_SG_LIST_PER_Q; - - /* - * If the just completed SG queue contained the - * last SG element, then no more SG queues need - * to be written. - */ - if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { - break; - } - - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - q_addr = ASC_QNO_TO_QADDR(next_qp); - } - - /* - * Clear the halt condition so the RISC will be restarted - * after the return. - */ - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#endif /* CC_VERY_LONG_SG_LIST */ - return (0); -} - -static uchar -_AscCopyLramScsiDoneQ(PortAddr iop_base, - ushort q_addr, - ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) -{ - ushort _val; - uchar sg_queue_cnt; - - DvcGetQinfo(iop_base, - q_addr + ASC_SCSIQ_DONE_INFO_BEG, - (uchar *)scsiq, - (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); - - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); - scsiq->q_status = (uchar)_val; - scsiq->q_no = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - scsiq->cntl = (uchar)_val; - sg_queue_cnt = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SENSE_LEN)); - scsiq->sense_len = (uchar)_val; - scsiq->extra_bytes = (uchar)(_val >> 8); - - /* - * Read high word of remain bytes from alternate location. - */ - scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort) - ASC_SCSIQ_W_ALT_DC1))) - << 16); - /* - * Read low word of remain bytes from original location. - */ - scsiq->remain_bytes += AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_DW_REMAIN_XFER_CNT)); - - scsiq->remain_bytes &= max_dma_count; - return (sg_queue_cnt); -} - -static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) -{ - uchar next_qp; - uchar n_q_used; - uchar sg_list_qp; - uchar sg_queue_cnt; - uchar q_cnt; - uchar done_q_tail; - uchar tid_no; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - ushort q_addr; - ushort sg_q_addr; - uchar cur_target_qng; - ASC_QDONE_INFO scsiq_buf; - ASC_QDONE_INFO *scsiq; - int false_overrun; - - iop_base = asc_dvc->iop_base; - n_q_used = 1; - scsiq = (ASC_QDONE_INFO *)&scsiq_buf; - done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); - q_addr = ASC_QNO_TO_QADDR(done_q_tail); - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); - if (next_qp != ASC_QLINK_END) { - AscPutVarDoneQTail(iop_base, next_qp); - q_addr = ASC_QNO_TO_QADDR(next_qp); - sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, - asc_dvc->max_dma_count); - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - (uchar)(scsiq-> - q_status & (uchar)~(QS_READY | - QS_ABORTED))); - tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); - target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); - if ((scsiq->cntl & QC_SG_HEAD) != 0) { - sg_q_addr = q_addr; - sg_list_qp = next_qp; - for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { - sg_list_qp = AscReadLramByte(iop_base, - (ushort)(sg_q_addr - + (ushort) - ASC_SCSIQ_B_FWD)); - sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); - if (sg_list_qp == ASC_QLINK_END) { - AscSetLibErrorCode(asc_dvc, - ASCQ_ERR_SG_Q_LINKS); - scsiq->d3.done_stat = QD_WITH_ERROR; - scsiq->d3.host_stat = - QHSTA_D_QDONE_SG_LIST_CORRUPTED; - goto FATAL_ERR_QDONE; - } - AscWriteLramByte(iop_base, - (ushort)(sg_q_addr + (ushort) - ASC_SCSIQ_B_STATUS), - QS_FREE); - } - n_q_used = sg_queue_cnt + 1; - AscPutVarDoneQTail(iop_base, sg_list_qp); - } - if (asc_dvc->queue_full_or_busy & target_id) { - cur_target_qng = AscReadLramByte(iop_base, - (ushort)((ushort) - ASC_QADR_BEG - + (ushort) - scsiq->d2. - target_ix)); - if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { - scsi_busy = AscReadLramByte(iop_base, (ushort) - ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, - scsi_busy); - asc_dvc->queue_full_or_busy &= ~target_id; - } - } - if (asc_dvc->cur_total_qng >= n_q_used) { - asc_dvc->cur_total_qng -= n_q_used; - if (asc_dvc->cur_dvc_qng[tid_no] != 0) { - asc_dvc->cur_dvc_qng[tid_no]--; - } - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); - scsiq->d3.done_stat = QD_WITH_ERROR; - goto FATAL_ERR_QDONE; - } - if ((scsiq->d2.srb_ptr == 0UL) || - ((scsiq->q_status & QS_ABORTED) != 0)) { - return (0x11); - } else if (scsiq->q_status == QS_DONE) { - false_overrun = FALSE; - if (scsiq->extra_bytes != 0) { - scsiq->remain_bytes += - (ADV_DCNT)scsiq->extra_bytes; - } - if (scsiq->d3.done_stat == QD_WITH_ERROR) { - if (scsiq->d3.host_stat == - QHSTA_M_DATA_OVER_RUN) { - if ((scsiq-> - cntl & (QC_DATA_IN | QC_DATA_OUT)) - == 0) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } else if (false_overrun) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } - } else if (scsiq->d3.host_stat == - QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { - AscStopChip(iop_base); - AscSetChipControl(iop_base, - (uchar)(CC_SCSI_RESET - | CC_HALT)); - udelay(60); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, - CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - AscSetChipControl(iop_base, 0); - } - } - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } else { - if ((AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_CDB_BEG)) - == START_STOP)) { - asc_dvc->unit_not_ready &= ~target_id; - if (scsiq->d3.done_stat != QD_NO_ERROR) { - asc_dvc->start_motor &= - ~target_id; - } - } - } - return (1); - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); - FATAL_ERR_QDONE: - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } - return (0x80); - } - } - return (0); -} - -static int AscISR(ASC_DVC_VAR *asc_dvc) -{ - ASC_CS_TYPE chipstat; - PortAddr iop_base; - ushort saved_ram_addr; - uchar ctrl_reg; - uchar saved_ctrl_reg; - int int_pending; - int status; - uchar host_flag; - - iop_base = asc_dvc->iop_base; - int_pending = FALSE; - - if (AscIsIntPending(iop_base) == 0) { - return int_pending; - } - - if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { - return (ERR); - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); - return (ERR); - } - if (asc_dvc->is_in_int) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); - return (ERR); - } - asc_dvc->is_in_int = TRUE; - ctrl_reg = AscGetChipControl(iop_base); - saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | - CC_SINGLE_STEP | CC_DIAG | CC_TEST)); - chipstat = AscGetChipStatus(iop_base); - if (chipstat & CSW_SCSI_RESET_LATCH) { - if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { - int i = 10; - int_pending = TRUE; - asc_dvc->sdtr_done = 0; - saved_ctrl_reg &= (uchar)(~CC_HALT); - while ((AscGetChipStatus(iop_base) & - CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { - mdelay(100); - } - AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - chipstat = AscGetChipStatus(iop_base); - } - } - saved_ram_addr = AscGetChipLramAddr(iop_base); - host_flag = AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & - (uchar)(~ASC_HOST_FLAG_IN_ISR); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); - if ((chipstat & CSW_INT_PENDING) - || (int_pending) - ) { - AscAckInterrupt(iop_base); - int_pending = TRUE; - if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { - if (AscIsrChipHalted(asc_dvc) == ERR) { - goto ISR_REPORT_QDONE_FATAL_ERROR; - } else { - saved_ctrl_reg &= (uchar)(~CC_HALT); - } - } else { - ISR_REPORT_QDONE_FATAL_ERROR: - if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { - while (((status = - AscIsrQDone(asc_dvc)) & 0x01) != 0) { - } - } else { - do { - if ((status = - AscIsrQDone(asc_dvc)) == 1) { - break; - } - } while (status == 0x11); - } - if ((status & 0x80) != 0) - int_pending = ERR; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - AscSetChipLramAddr(iop_base, saved_ram_addr); - AscSetChipControl(iop_base, saved_ctrl_reg); - asc_dvc->is_in_int = FALSE; - return (int_pending); -} - /* Microcode buffer is kept after initialization for error recovery. */ static uchar _asc_mcode_buf[] = { 0x01, 0x03, 0x01, 0x19, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -7302,1977 +5078,9 @@ static uchar _asc_mcode_buf[] = { 0xF8, 0x88, 0x11, 0x23, 0xA1, 0x01, 0x04, 0x23, 0xA0, 0x01, 0xE6, 0x84, }; -static ushort _asc_mcode_size = sizeof(_asc_mcode_buf); +static unsigned short _asc_mcode_size = sizeof(_asc_mcode_buf); static ADV_DCNT _asc_mcode_chksum = 0x012C453FUL; -#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 -static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { - INQUIRY, - REQUEST_SENSE, - READ_CAPACITY, - READ_TOC, - MODE_SELECT, - MODE_SENSE, - MODE_SELECT_10, - MODE_SENSE_10, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF -}; - -static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) -{ - PortAddr iop_base; - int sta; - int n_q_required; - int disable_syn_offset_one_fix; - int i; - ASC_PADDR addr; - ushort sg_entry_cnt = 0; - ushort sg_entry_cnt_minus_one = 0; - uchar target_ix; - uchar tid_no; - uchar sdtr_data; - uchar extra_bytes; - uchar scsi_cmd; - uchar disable_cmd; - ASC_SG_HEAD *sg_head; - ASC_DCNT data_cnt; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - if (asc_dvc->err_code != 0) - return (ERR); - scsiq->q1.q_no = 0; - if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { - scsiq->q1.extra_bytes = 0; - } - sta = 0; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - n_q_required = 1; - if (scsiq->cdbptr[0] == REQUEST_SENSE) { - if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { - asc_dvc->sdtr_done &= ~scsiq->q1.target_id; - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); - } - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); - return (ERR); - } - asc_dvc->in_critical_cnt++; - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#if !CC_VERY_LONG_SG_LIST - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#endif /* !CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt == 1) { - scsiq->q1.data_addr = - (ADV_PADDR)sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = - (ADV_DCNT)sg_head->sg_list[0].bytes; - scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); - } - sg_entry_cnt_minus_one = sg_entry_cnt - 1; - } - scsi_cmd = scsiq->cdbptr[0]; - disable_syn_offset_one_fix = FALSE; - if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && - !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { - if (scsiq->q1.cntl & QC_SG_HEAD) { - data_cnt = 0; - for (i = 0; i < sg_entry_cnt; i++) { - data_cnt += - (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. - bytes); - } - } else { - data_cnt = le32_to_cpu(scsiq->q1.data_cnt); - } - if (data_cnt != 0UL) { - if (data_cnt < 512UL) { - disable_syn_offset_one_fix = TRUE; - } else { - for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; - i++) { - disable_cmd = - _syn_offset_one_disable_cmd[i]; - if (disable_cmd == 0xFF) { - break; - } - if (scsi_cmd == disable_cmd) { - disable_syn_offset_one_fix = - TRUE; - break; - } - } - } - } - } - if (disable_syn_offset_one_fix) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | - ASC_TAG_FLAG_DISABLE_DISCONNECT); - } else { - scsiq->q2.tag_code &= 0x27; - } - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - (ADV_PADDR)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - addr) + - (ADV_DCNT)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - scsiq->q1.extra_bytes = - extra_bytes; - data_cnt = - le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - data_cnt -= - (ASC_DCNT) extra_bytes; - sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes = - cpu_to_le32(data_cnt); - } - } - } - } - sg_head->entry_to_copy = sg_head->entry_cnt; -#if CC_VERY_LONG_SG_LIST - /* - * Set the sg_entry_cnt to the maximum possible. The rest of - * the SG elements will be copied when the RISC completes the - * SG elements that fit and halts. - */ - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - sg_entry_cnt = ASC_MAX_SG_LIST; - } -#endif /* CC_VERY_LONG_SG_LIST */ - n_q_required = AscSgListToQueue(sg_entry_cnt); - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= - (uint) n_q_required) - || ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = - AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } else { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - le32_to_cpu(scsiq->q1.data_addr) + - le32_to_cpu(scsiq->q1.data_cnt); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - data_cnt = - le32_to_cpu(scsiq->q1. - data_cnt); - if (((ushort)data_cnt & 0x01FF) - == 0) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - data_cnt -= (ASC_DCNT) - extra_bytes; - scsiq->q1.data_cnt = - cpu_to_le32 - (data_cnt); - scsiq->q1.extra_bytes = - extra_bytes; - } - } - } - } - } - n_q_required = 1; - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || - ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } - asc_dvc->in_critical_cnt--; - return (sta); -} - -static int -AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) -{ - PortAddr iop_base; - uchar free_q_head; - uchar next_qp; - uchar tid_no; - uchar target_ix; - int sta; - - iop_base = asc_dvc->iop_base; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - sta = 0; - free_q_head = (uchar)AscGetVarFreeQHead(iop_base); - if (n_q_required > 1) { - next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, - (uchar)n_q_required); - if (next_qp != ASC_QLINK_END) { - asc_dvc->last_q_shortage = 0; - scsiq->sg_head->queue_cnt = n_q_required - 1; - scsiq->q1.q_no = free_q_head; - sta = AscPutReadySgListQueue(asc_dvc, scsiq, - free_q_head); - } - } else if (n_q_required == 1) { - next_qp = AscAllocFreeQueue(iop_base, free_q_head); - if (next_qp != ASC_QLINK_END) { - scsiq->q1.q_no = free_q_head; - sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); - } - } - if (sta == 1) { - AscPutVarFreeQHead(iop_base, next_qp); - asc_dvc->cur_total_qng += (uchar)(n_q_required); - asc_dvc->cur_dvc_qng[tid_no]++; - } - return sta; -} - -static int AscSgListToQueue(int sg_list) -{ - int n_sg_list_qs; - - n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); - if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) - n_sg_list_qs++; - return (n_sg_list_qs + 1); -} - -static uint -AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) -{ - uint cur_used_qs; - uint cur_free_qs; - ASC_SCSI_BIT_ID_TYPE target_id; - uchar tid_no; - - target_id = ASC_TIX_TO_TARGET_ID(target_ix); - tid_no = ASC_TIX_TO_TID(target_ix); - if ((asc_dvc->unit_not_ready & target_id) || - (asc_dvc->queue_full_or_busy & target_id)) { - return (0); - } - if (n_qs == 1) { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; - } else { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) ASC_MIN_FREE_Q; - } - if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { - cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; - if (asc_dvc->cur_dvc_qng[tid_no] >= - asc_dvc->max_dvc_qng[tid_no]) { - return (0); - } - return (cur_free_qs); - } - if (n_qs > 1) { - if ((n_qs > asc_dvc->last_q_shortage) - && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { - asc_dvc->last_q_shortage = n_qs; - } - } - return (0); -} - -static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - ushort q_addr; - uchar tid_no; - uchar sdtr_data; - uchar syn_period_ix; - uchar syn_offset; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && - ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { - tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - syn_period_ix = - (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); - syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; - AscMsgOutSDTR(asc_dvc, - asc_dvc->sdtr_period_tbl[syn_period_ix], - syn_offset); - scsiq->q1.cntl |= QC_MSG_OUT; - } - q_addr = ASC_QNO_TO_QADDR(q_no); - if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - } - scsiq->q1.status = QS_FREE; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_CDB_BEG, - (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); - - DvcPutScsiQ(iop_base, - q_addr + ASC_SCSIQ_CPY_BEG, - (uchar *)&scsiq->q1.cntl, - ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); - AscWriteLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), - (ushort)(((ushort)scsiq->q1. - q_no << 8) | (ushort)QS_READY)); - return (1); -} - -static int -AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - int sta; - int i; - ASC_SG_HEAD *sg_head; - ASC_SG_LIST_Q scsi_sg_q; - ASC_DCNT saved_data_addr; - ASC_DCNT saved_data_cnt; - PortAddr iop_base; - ushort sg_list_dwords; - ushort sg_index; - ushort sg_entry_cnt; - ushort q_addr; - uchar next_qp; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - saved_data_addr = scsiq->q1.data_addr; - saved_data_cnt = scsiq->q1.data_cnt; - scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; -#if CC_VERY_LONG_SG_LIST - /* - * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST - * then not all SG elements will fit in the allocated queues. - * The rest of the SG elements will be copied when the RISC - * completes the SG elements that fit and halts. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. ASC_MAX_SG_LIST is - * already inflated by 1 to account for this. For example it - * may be 50 which is 1 + 7 queues * 7 SG elements. - */ - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that will - * need to be handled from a_isr.c. - */ - scsiq->remain_sg_entry_cnt = - sg_head->entry_cnt - ASC_MAX_SG_LIST; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. - */ - sg_entry_cnt = sg_head->entry_cnt - 1; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt != 0) { - scsiq->q1.cntl |= QC_SG_HEAD; - q_addr = ASC_QNO_TO_QADDR(q_no); - sg_index = 1; - scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - if (i == 0) { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q; - } else { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } - } else { -#if CC_VERY_LONG_SG_LIST - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - scsi_sg_q.cntl |= QCSG_SG_XFER_END; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - sg_list_dwords = sg_entry_cnt << 1; - if (i == 0) { - scsi_sg_q.sg_list_cnt = sg_entry_cnt; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt; - } else { - scsi_sg_q.sg_list_cnt = - sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt - 1; - } - sg_entry_cnt = 0; - } - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - scsi_sg_q.q_no = next_qp; - q_addr = ASC_QNO_TO_QADDR(next_qp); - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[sg_index], - sg_list_dwords); - sg_index += ASC_SG_LIST_PER_Q; - scsiq->next_sg_index = sg_index; - } - } else { - scsiq->q1.cntl &= ~QC_SG_HEAD; - } - sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); - scsiq->q1.data_addr = saved_data_addr; - scsiq->q1.data_cnt = saved_data_cnt; - return (sta); -} - -static int -AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) -{ - int sta = FALSE; - - if (AscHostReqRiscHalt(iop_base)) { - sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscStartChip(iop_base); - return (sta); - } - return (sta); -} - -static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) -{ - ASC_SCSI_BIT_ID_TYPE org_id; - int i; - int sta = TRUE; - - AscSetBank(iop_base, 1); - org_id = AscReadChipDvcID(iop_base); - for (i = 0; i <= ASC_MAX_TID; i++) { - if (org_id == (0x01 << i)) - break; - } - org_id = (ASC_SCSI_BIT_ID_TYPE) i; - AscWriteChipDvcID(iop_base, id); - if (AscReadChipDvcID(iop_base) == (0x01 << id)) { - AscSetBank(iop_base, 0); - AscSetChipSyn(iop_base, sdtr_data); - if (AscGetChipSyn(iop_base) != sdtr_data) { - sta = FALSE; - } - } else { - sta = FALSE; - } - AscSetBank(iop_base, 1); - AscWriteChipDvcID(iop_base, org_id); - AscSetBank(iop_base, 0); - return (sta); -} - -static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) -{ - uchar i; - ushort s_addr; - PortAddr iop_base; - ushort warn_code; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, - (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * - 64) >> 1) - ); - i = ASC_MIN_ACTIVE_QNO; - s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(i - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - } - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)ASC_QLINK_END); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)asc_dvc->max_total_qng); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i <= (uchar)(asc_dvc->max_total_qng + 3); - i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); - } - return (warn_code); -} - -static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i; - ushort lram_addr; - - iop_base = asc_dvc->iop_base; - AscPutRiscVarFreeQHead(iop_base, 1); - AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscPutVarFreeQHead(iop_base, 1); - AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 1)); - AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 2)); - AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, - asc_dvc->max_total_qng); - AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); - AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); - AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); - AscPutQDoneInProgress(iop_base, 0); - lram_addr = ASC_QADR_BEG; - for (i = 0; i < 32; i++, lram_addr += 2) { - AscWriteLramWord(iop_base, lram_addr, 0); - } -} - -static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) -{ - if (asc_dvc->err_code == 0) { - asc_dvc->err_code = err_code; - AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, - err_code); - } - return (err_code); -} - -static uchar -AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) -{ - EXT_MSG sdtr_buf; - uchar sdtr_period_index; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - sdtr_buf.msg_type = EXTENDED_MESSAGE; - sdtr_buf.msg_len = MS_SDTR_LEN; - sdtr_buf.msg_req = EXTENDED_SDTR; - sdtr_buf.xfer_period = sdtr_period; - sdtr_offset &= ASC_SYN_MAX_OFFSET; - sdtr_buf.req_ack_offset = sdtr_offset; - if ((sdtr_period_index = - AscGetSynPeriodIndex(asc_dvc, sdtr_period)) <= - asc_dvc->max_sdtr_index) { - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return ((sdtr_period_index << 4) | sdtr_offset); - } else { - - sdtr_buf.req_ack_offset = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return (0); - } -} - -static uchar -AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) -{ - uchar byte; - uchar sdtr_period_ix; - - sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); - if ((sdtr_period_ix > asc_dvc->max_sdtr_index) - ) { - return (0xFF); - } - byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); - return (byte); -} - -static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) -{ - AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); - return; -} - -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) -{ - uchar *period_table; - int max_index; - int min_index; - int i; - - period_table = asc_dvc->sdtr_period_tbl; - max_index = (int)asc_dvc->max_sdtr_index; - min_index = (int)asc_dvc->host_init_sdtr_index; - if ((syn_time <= period_table[max_index])) { - for (i = min_index; i < (max_index - 1); i++) { - if (syn_time <= period_table[i]) { - return ((uchar)i); - } - } - return ((uchar)max_index); - } else { - return ((uchar)(max_index + 1)); - } -} - -static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) -{ - ushort q_addr; - uchar next_qp; - uchar q_status; - - q_addr = ASC_QNO_TO_QADDR(free_q_head); - q_status = (uchar)AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_STATUS)); - next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); - if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) { - return (next_qp); - } - return (ASC_QLINK_END); -} - -static uchar -AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) -{ - uchar i; - - for (i = 0; i < n_free_q; i++) { - if ((free_q_head = AscAllocFreeQueue(iop_base, free_q_head)) - == ASC_QLINK_END) { - return (ASC_QLINK_END); - } - } - return (free_q_head); -} - -static int AscHostReqRiscHalt(PortAddr iop_base) -{ - int count = 0; - int sta = 0; - uchar saved_stop_code; - - if (AscIsChipHalted(iop_base)) - return (1); - saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); - do { - if (AscIsChipHalted(iop_base)) { - sta = 1; - break; - } - mdelay(100); - } while (count++ < 20); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); - return (sta); -} - -static int AscStopQueueExe(PortAddr iop_base) -{ - int count = 0; - - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_REQ_RISC_STOP); - do { - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & - ASC_STOP_ACK_RISC_STOP) { - return (1); - } - mdelay(100); - } while (count++ < 20); - } - return (0); -} - -static int AscStartChip(PortAddr iop_base) -{ - AscSetChipControl(iop_base, 0); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - return (0); - } - return (1); -} - -static int AscStopChip(PortAddr iop_base) -{ - uchar cc_val; - - cc_val = - AscGetChipControl(iop_base) & - (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); - AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { - return (0); - } - return (1); -} - -static int AscIsChipHalted(PortAddr iop_base) -{ - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { - return (1); - } - } - return (0); -} - -static void AscSetChipIH(PortAddr iop_base, ushort ins_code) -{ - AscSetBank(iop_base, 1); - AscWriteChipIH(iop_base, ins_code); - AscSetBank(iop_base, 0); - return; -} - -static void AscAckInterrupt(PortAddr iop_base) -{ - uchar host_flag; - uchar risc_flag; - ushort loop; - - loop = 0; - do { - risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); - if (loop++ > 0x7FFF) { - break; - } - } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); - host_flag = - AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); - AscSetChipStatus(iop_base, CIW_INT_ACK); - loop = 0; - while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { - AscSetChipStatus(iop_base, CIW_INT_ACK); - if (loop++ > 3) { - break; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - return; -} - -static void AscDisableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); - return; -} - -static void AscEnableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); - return; -} - -static void AscSetBank(PortAddr iop_base, uchar bank) -{ - uchar val; - - val = AscGetChipControl(iop_base) & - (~ - (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | - CC_CHIP_RESET)); - if (bank == 1) { - val |= CC_BANK_ONE; - } else if (bank == 2) { - val |= CC_DIAG | CC_BANK_ONE; - } else { - val &= ~CC_BANK_ONE; - } - AscSetChipControl(iop_base, val); - return; -} - -static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i = 10; - - iop_base = asc_dvc->iop_base; - while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) - && (i-- > 0)) { - mdelay(100); - } - AscStopChip(iop_base); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); - udelay(60); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); - AscSetChipControl(iop_base, CC_HALT); - mdelay(200); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - return (AscIsChipHalted(iop_base)); -} - -static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) -{ - if (bus_type & ASC_IS_ISA) - return ASC_MAX_ISA_DMA_COUNT; - else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) - return ASC_MAX_VL_DMA_COUNT; - return ASC_MAX_PCI_DMA_COUNT; -} - -#ifdef CONFIG_ISA -static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) -{ - ushort channel; - - channel = AscGetChipCfgLsw(iop_base) & 0x0003; - if (channel == 0x03) - return (0); - else if (channel == 0x00) - return (7); - return (channel + 4); -} - -static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) -{ - ushort cfg_lsw; - uchar value; - - if ((dma_channel >= 5) && (dma_channel <= 7)) { - if (dma_channel == 7) - value = 0x00; - else - value = dma_channel - 4; - cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; - cfg_lsw |= value; - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetIsaDmaChannel(iop_base)); - } - return (0); -} - -static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) -{ - speed_value &= 0x07; - AscSetBank(iop_base, 1); - AscWriteChipDmaSpeed(iop_base, speed_value); - AscSetBank(iop_base, 0); - return (AscGetIsaDmaSpeed(iop_base)); -} - -static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) -{ - uchar speed_value; - - AscSetBank(iop_base, 1); - speed_value = AscReadChipDmaSpeed(iop_base); - speed_value &= 0x07; - AscSetBank(iop_base, 0); - return (speed_value); -} -#endif /* CONFIG_ISA */ - -static int __devinit AscInitGetConfig(asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - unsigned short warn_code = 0; - - asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - - if (AscFindSignature(asc_dvc->iop_base)) { - warn_code |= AscInitAscDvcVar(asc_dvc); - warn_code |= AscInitFromEEP(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; - if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) - asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; - } else { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - } - - switch (warn_code) { - case 0: /* No error */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " - "w/o disconnects\n", boardp->id); - break; - default: - ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - PortAddr iop_base = asc_dvc->iop_base; - unsigned short cfg_msw; - unsigned short warn_code = 0; - - asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return asc_dvc->err_code; - } - - cfg_msw = AscGetChipCfgMsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != - asc_dvc->cfg->cmd_qng_enabled) { - asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - } - if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { - if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) - != asc_dvc->irq_no) { - asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; - } - } -#ifdef CONFIG_PCI - if (asc_dvc->bus_type & ASC_IS_PCI) { - cfg_msw &= 0xFFC0; - AscSetChipCfgMsw(iop_base, cfg_msw); - if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { - } else { - if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || - (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; - asc_dvc->bug_fix_cntl |= - ASC_BUG_FIX_ASYN_USE_SYN; - } - } - } else -#endif /* CONFIG_PCI */ - if (asc_dvc->bus_type == ASC_IS_ISAPNP) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) - == ASC_CHIP_VER_ASYN_BUG) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; - } - } - if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != - asc_dvc->cfg->chip_scsi_id) { - asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; - } -#ifdef CONFIG_ISA - if (asc_dvc->bus_type & ASC_IS_ISA) { - AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); - AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); - } -#endif /* CONFIG_ISA */ - - asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; - - switch (warn_code) { - case 0: /* No error. */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " - "disconnects\n", - boardp->id); - break; - default: - ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) -{ - ushort warn_code; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && - !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; - if (asc_dvc->err_code != 0) - return (UW_ERR); - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return (warn_code); - } - AscDisableInterrupt(iop_base); - warn_code |= AscInitLram(asc_dvc); - if (asc_dvc->err_code != 0) - return (UW_ERR); - ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", - (ulong)_asc_mcode_chksum); - if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, - _asc_mcode_size) != _asc_mcode_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; - return (warn_code); - } - warn_code |= AscInitMicroCodeVar(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; - AscEnableInterrupt(iop_base); - return (warn_code); -} - -static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - PortAddr iop_base; - ushort warn_code; - uchar chip_version; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - asc_dvc->err_code = 0; - if ((asc_dvc->bus_type & - (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { - asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; - } - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, 0); - asc_dvc->bug_fix_cntl = 0; - asc_dvc->pci_fix_asyn_xfer = 0; - asc_dvc->pci_fix_asyn_xfer_always = 0; - /* asc_dvc->init_state initalized in AscInitGetConfig(). */ - asc_dvc->sdtr_done = 0; - asc_dvc->cur_total_qng = 0; - asc_dvc->is_in_int = 0; - asc_dvc->in_critical_cnt = 0; - asc_dvc->last_q_shortage = 0; - asc_dvc->use_tagged_qng = 0; - asc_dvc->no_scam = 0; - asc_dvc->unit_not_ready = 0; - asc_dvc->queue_full_or_busy = 0; - asc_dvc->redo_scam = 0; - asc_dvc->res2 = 0; - asc_dvc->host_init_sdtr_index = 0; - asc_dvc->cfg->can_tagged_qng = 0; - asc_dvc->cfg->cmd_qng_enabled = 0; - asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; - asc_dvc->init_sdtr = 0; - asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; - asc_dvc->scsi_reset_wait = 3; - asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); - asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; - asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; - asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | - ASC_LIB_VERSION_MINOR; - chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); - asc_dvc->cfg->chip_version = chip_version; - asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; - asc_dvc->max_sdtr_index = 7; - if ((asc_dvc->bus_type & ASC_IS_PCI) && - (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { - asc_dvc->bus_type = ASC_IS_PCI_ULTRA; - asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; - asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; - asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; - asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; - asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; - asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; - asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; - asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; - asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; - asc_dvc->max_sdtr_index = 15; - if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | - SEC_ENABLE_FILTER)); - } - } - if (asc_dvc->bus_type == ASC_IS_PCI) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } - - asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; -#ifdef CONFIG_ISA - if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { - if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { - AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); - asc_dvc->bus_type = ASC_IS_ISAPNP; - } - asc_dvc->cfg->isa_dma_channel = - (uchar)AscGetIsaDmaChannel(iop_base); - } -#endif /* CONFIG_ISA */ - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->cur_dvc_qng[i] = 0; - asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; - asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; - asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; - asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; - } - return (warn_code); -} - -static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) -{ - ASCEEP_CONFIG eep_config_buf; - ASCEEP_CONFIG *eep_config; - PortAddr iop_base; - ushort chksum; - ushort warn_code; - ushort cfg_msw, cfg_lsw; - int i; - int write_eep = 0; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); - AscStopQueueExe(iop_base); - if ((AscStopChip(iop_base) == FALSE) || - (AscGetChipScsiCtrl(iop_base) != 0)) { - asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - if (AscIsChipHalted(iop_base) == FALSE) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - eep_config = (ASCEEP_CONFIG *)&eep_config_buf; - cfg_msw = AscGetChipCfgMsw(iop_base); - cfg_lsw = AscGetChipCfgLsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); - ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); - if (chksum == 0) { - chksum = 0xaa55; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - if (asc_dvc->cfg->chip_version == 3) { - if (eep_config->cfg_lsw != cfg_lsw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_lsw = - AscGetChipCfgLsw(iop_base); - } - if (eep_config->cfg_msw != cfg_msw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_msw = - AscGetChipCfgMsw(iop_base); - } - } - } - eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; - ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", - eep_config->chksum); - if (chksum != eep_config->chksum) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == - ASC_CHIP_VER_PCI_ULTRA_3050) { - ASC_DBG(1, - "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); - eep_config->init_sdtr = 0xFF; - eep_config->disc_enable = 0xFF; - eep_config->start_motor = 0xFF; - eep_config->use_cmd_qng = 0; - eep_config->max_total_qng = 0xF0; - eep_config->max_tag_qng = 0x20; - eep_config->cntl = 0xBFFF; - ASC_EEP_SET_CHIP_ID(eep_config, 7); - eep_config->no_scam = 0; - eep_config->adapter_info[0] = 0; - eep_config->adapter_info[1] = 0; - eep_config->adapter_info[2] = 0; - eep_config->adapter_info[3] = 0; - eep_config->adapter_info[4] = 0; - /* Indicate EEPROM-less board. */ - eep_config->adapter_info[5] = 0xBB; - } else { - ASC_PRINT - ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); - write_eep = 1; - warn_code |= ASC_WARN_EEPROM_CHKSUM; - } - } - asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; - asc_dvc->cfg->disc_enable = eep_config->disc_enable; - asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; - asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); - asc_dvc->start_motor = eep_config->start_motor; - asc_dvc->dvc_cntl = eep_config->cntl; - asc_dvc->no_scam = eep_config->no_scam; - asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; - asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; - asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; - asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; - asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; - asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; - if (!AscTestExternalLram(asc_dvc)) { - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == - ASC_IS_PCI_ULTRA)) { - eep_config->max_total_qng = - ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = - ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; - } else { - eep_config->cfg_msw |= 0x0800; - cfg_msw |= 0x0800; - AscSetChipCfgMsw(iop_base, cfg_msw); - eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; - } - } else { - } - if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; - } - if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; - } - if (eep_config->max_tag_qng > eep_config->max_total_qng) { - eep_config->max_tag_qng = eep_config->max_total_qng; - } - if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { - eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; - } - asc_dvc->max_total_qng = eep_config->max_total_qng; - if ((eep_config->use_cmd_qng & eep_config->disc_enable) != - eep_config->use_cmd_qng) { - eep_config->disc_enable = eep_config->use_cmd_qng; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { - asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); - } - ASC_EEP_SET_CHIP_ID(eep_config, - ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); - asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && - !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { - asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; - } - - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; - asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; - asc_dvc->cfg->sdtr_period_offset[i] = - (uchar)(ASC_DEF_SDTR_OFFSET | - (asc_dvc->host_init_sdtr_index << 4)); - } - eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); - if (write_eep) { - if ((i = - AscSetEEPConfig(iop_base, eep_config, - asc_dvc->bus_type)) != 0) { - ASC_PRINT1 - ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", - i); - } else { - ASC_PRINT - ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); - } - } - return (warn_code); -} - -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - ushort warn_code; - PortAddr iop_base; - ASC_PADDR phy_addr; - ASC_DCNT phy_size; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - for (i = 0; i <= ASC_MAX_TID; i++) { - AscPutMCodeInitSDTRAtID(iop_base, i, - asc_dvc->cfg->sdtr_period_offset[i] - ); - } - - AscInitQLinkVar(asc_dvc); - AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, - ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); - - /* Align overrun buffer on an 8 byte boundary. */ - phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); - phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, - (uchar *)&phy_addr, 1); - phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, - (uchar *)&phy_size, 1); - - asc_dvc->cfg->mcode_date = - AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); - asc_dvc->cfg->mcode_version = - AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); - - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - if (AscStartChip(iop_base) != 1) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - - return (warn_code); -} - -static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - ushort q_addr; - ushort saved_word; - int sta; - - iop_base = asc_dvc->iop_base; - sta = 0; - q_addr = ASC_QNO_TO_QADDR(241); - saved_word = AscReadLramWord(iop_base, q_addr); - AscSetChipLramAddr(iop_base, q_addr); - AscSetChipLramData(iop_base, 0x55AA); - mdelay(10); - AscSetChipLramAddr(iop_base, q_addr); - if (AscGetChipLramData(iop_base) == 0x55AA) { - sta = 1; - AscWriteLramWord(iop_base, q_addr, saved_word); - } - return (sta); -} - -static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) -{ - uchar read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPCmd(iop_base, cmd_reg); - mdelay(1); - read_back = AscGetChipEEPCmd(iop_base); - if (read_back == cmd_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) -{ - ushort read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPData(iop_base, data_reg); - mdelay(1); - read_back = AscGetChipEEPData(iop_base); - if (read_back == data_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static void __devinit AscWaitEEPRead(void) -{ - mdelay(1); - return; -} - -static void __devinit AscWaitEEPWrite(void) -{ - mdelay(20); - return; -} - -static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) -{ - ushort read_wval; - uchar cmd_reg; - - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - cmd_reg = addr | ASC_EEP_CMD_READ; - AscWriteEEPCmdReg(iop_base, cmd_reg); - AscWaitEEPRead(); - read_wval = AscGetChipEEPData(iop_base); - AscWaitEEPRead(); - return (read_wval); -} - -static ushort __devinit -AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) -{ - ushort read_wval; - - read_wval = AscReadEEPWord(iop_base, addr); - if (read_wval != word_val) { - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); - AscWaitEEPRead(); - AscWriteEEPDataReg(iop_base, word_val); - AscWaitEEPRead(); - AscWriteEEPCmdReg(iop_base, - (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); - AscWaitEEPWrite(); - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - return (AscReadEEPWord(iop_base, addr)); - } - return (read_wval); -} - -static ushort __devinit -AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - ushort wval; - ushort sum; - ushort *wbuf; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - int s_addr; - - wbuf = (ushort *)cfg_buf; - sum = 0; - /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - sum += *wbuf; - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - wval = AscReadEEPWord(iop_base, (uchar)s_addr); - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields - must unswap bytes already swapped - * by AscReadEEPWord(). - */ - *wbuf = le16_to_cpu(wval); - } else { - /* Don't swap word field at the end - cntl field. */ - *wbuf = wval; - } - sum += wval; /* Checksum treats all EEPROM data as words. */ - } - /* - * Read the checksum word which will be compared against 'sum' - * by the caller. Word field already swapped. - */ - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - return (sum); -} - -static int __devinit -AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int n_error; - ushort *wbuf; - ushort word; - ushort sum; - int s_addr; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - - wbuf = (ushort *)cfg_buf; - n_error = 0; - sum = 0; - /* Write two config words; AscWriteEEPWord() will swap bytes. */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - sum += *wbuf; - if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * This is a char field. Swap char fields before they are - * swapped again by AscWriteEEPWord(). - */ - word = cpu_to_le16(*wbuf); - if (word != - AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { - n_error++; - } - } else { - /* Don't swap word field at the end - cntl field. */ - if (*wbuf != - AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - sum += *wbuf; /* Checksum calculated from word values. */ - } - /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ - *wbuf = sum; - if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { - n_error++; - } - - /* Read EEPROM back again. */ - wbuf = (ushort *)cfg_buf; - /* - * Read two config words; Byte-swapping done by AscReadEEPWord(). - */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields. Must unswap bytes already swapped - * by AscReadEEPWord(). - */ - word = - le16_to_cpu(AscReadEEPWord - (iop_base, (uchar)s_addr)); - } else { - /* Don't swap word field at the end - cntl field. */ - word = AscReadEEPWord(iop_base, (uchar)s_addr); - } - if (*wbuf != word) { - n_error++; - } - } - /* Read checksum; Byte swapping not needed. */ - if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { - n_error++; - } - return (n_error); -} - -static int __devinit -AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int retry; - int n_error; - - retry = 0; - while (TRUE) { - if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, - bus_type)) == 0) { - break; - } - if (++retry > ASC_EEP_MAX_RETRY) { - break; - } - } - return (n_error); -} - -static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) -{ - char type = sdev->type; - ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; - - if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) - return; - if (asc_dvc->init_sdtr & tid_bits) - return; - - if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) - asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; - - asc_dvc->pci_fix_asyn_xfer |= tid_bits; - if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || - (type == TYPE_ROM) || (type == TYPE_TAPE)) - asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; - - if (asc_dvc->pci_fix_asyn_xfer & tid_bits) - AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, - ASYN_SDTR_DATA_FIX_PCI_REV_AB); -} - -static uchar AscReadLramByte(PortAddr iop_base, ushort addr) -{ - uchar byte_data; - ushort word_data; - - if (isodd_word(addr)) { - AscSetChipLramAddr(iop_base, addr - 1); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)((word_data >> 8) & 0xFF); - } else { - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)(word_data & 0xFF); - } - return (byte_data); -} - -static ushort AscReadLramWord(PortAddr iop_base, ushort addr) -{ - ushort word_data; - - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - return (word_data); -} - -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) -{ - ushort val_low, val_high; - ASC_DCNT dword_data; - - AscSetChipLramAddr(iop_base, addr); - val_low = AscGetChipLramData(iop_base); - val_high = AscGetChipLramData(iop_base); - dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; - return (dword_data); -} -#endif /* CC_VERY_LONG_SG_LIST */ - -static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) -{ - AscSetChipLramAddr(iop_base, addr); - AscSetChipLramData(iop_base, word_val); - return; -} - -static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) -{ - ushort word_data; - - if (isodd_word(addr)) { - addr--; - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0x00FF; - word_data |= (((ushort)byte_val << 8) & 0xFF00); - } else { - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0xFF00; - word_data |= ((ushort)byte_val & 0x00FF); - } - AscWriteLramWord(iop_base, addr, word_data); - return; -} - -/* - * Copy 2 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when written to LRAM. - */ -static void -AscMemWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - /* - * On a little-endian system the second argument below - * produces a little-endian ushort which is written to - * LRAM in little-endian order. On a big-endian system - * the second argument produces a big-endian ushort which - * is "transparently" byte-swapped by outpw() and written - * in little-endian order to LRAM. - */ - outpw(iop_base + IOP_RAM_DATA, - ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); - } - return; -} - -/* - * Copy 4 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when writen to LRAM. - */ -static void -AscMemDWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int dwords) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 4 * dwords; i += 4) { - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ - } - return; -} - -/* - * Copy 2 bytes from LRAM. - * - * The source data is assumed to be in little-endian order in LRAM - * and is maintained in little-endian order when written to memory. - */ -static void -AscMemWordCopyPtrFromLram(PortAddr iop_base, - ushort s_addr, uchar *d_buffer, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - word = inpw(iop_base + IOP_RAM_DATA); - d_buffer[i] = word & 0xff; - d_buffer[i + 1] = (word >> 8) & 0xff; - } - return; -} - -static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) -{ - ASC_DCNT sum; - int i; - - sum = 0L; - for (i = 0; i < words; i++, s_addr += 2) { - sum += AscReadLramWord(iop_base, s_addr); - } - return (sum); -} - -static void -AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < words; i++) { - AscSetChipLramData(iop_base, set_wval); - } - return; -} - /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc3550_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0x16, 0x18, 0xe4, 0x00, 0xfc, @@ -10686,451 +6494,213 @@ static unsigned char _adv_asc38C1600_buf[] = { static unsigned short _adv_asc38C1600_size = sizeof(_adv_asc38C1600_buf); /* 0x1673 */ static ADV_DCNT _adv_asc38C1600_chksum = 0x0604EF77UL; /* Expanded little-endian checksum. */ -/* - * EEPROM Configuration. - * - * All drivers should use this structure to set the default EEPROM - * configuration. The BIOS now uses this structure when it is built. - * Additional structure information can be found in a_condor.h where - * the structure is defined. - * - * The *_Field_IsChar structs are needed to correct for endianness. - * These values are read from the board 16 bits at a time directly - * into the structs. Because some fields are char, the values will be - * in the wrong order. The *_Field_IsChar tells when to flip the - * bytes. Data read and written to PCI memory is automatically swapped - * on big-endian platforms so char fields read as words are actually being - * unswapped on big-endian platforms. - */ -static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ - 0x0000, /* cfg_msw */ - 0xFFFF, /* disc_enable */ - 0xFFFF, /* wdtr_able */ - 0xFFFF, /* sdtr_able */ - 0xFFFF, /* start_motor */ - 0xFFFF, /* tagqng_able */ - 0xFFFF, /* bios_scan */ - 0, /* scam_tolerant */ - 7, /* adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* termination */ - 0, /* reserved1 */ - 0xFFE7, /* bios_ctrl */ - 0xFFFF, /* ultra_able */ - 0, /* reserved2 */ - ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; +static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i; + ushort lram_addr; -static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { - 0, /* cfg_lsw */ - 0, /* cfg_msw */ - 0, /* -disc_enable */ - 0, /* wdtr_able */ - 0, /* sdtr_able */ - 0, /* start_motor */ - 0, /* tagqng_able */ - 0, /* bios_scan */ - 0, /* scam_tolerant */ - 1, /* adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* termination */ - 1, /* reserved1 */ - 0, /* bios_ctrl */ - 0, /* ultra_able */ - 0, /* reserved2 */ - 1, /* max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; + iop_base = asc_dvc->iop_base; + AscPutRiscVarFreeQHead(iop_base, 1); + AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscPutVarFreeQHead(iop_base, 1); + AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 1)); + AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 2)); + AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, + asc_dvc->max_total_qng); + AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); + AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); + AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); + AscPutQDoneInProgress(iop_base, 0); + lram_addr = ASC_QADR_BEG; + for (i = 0; i < 32; i++, lram_addr += 2) { + AscWriteLramWord(iop_base, lram_addr, 0); + } +} -static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x4444, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x4444, /* 13 sdtr_speed2 */ - 0x4444, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x4444, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; +static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + ushort warn_code; + PortAddr iop_base; + ASC_PADDR phy_addr; + ASC_DCNT phy_size; -static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + iop_base = asc_dvc->iop_base; + warn_code = 0; + for (i = 0; i <= ASC_MAX_TID; i++) { + AscPutMCodeInitSDTRAtID(iop_base, i, + asc_dvc->cfg->sdtr_period_offset[i]); + } -static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x5555, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x5555, /* 13 sdtr_speed2 */ - 0x5555, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x5555, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + AscInitQLinkVar(asc_dvc); + AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, + ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); -static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + /* Align overrun buffer on an 8 byte boundary. */ + phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); + phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, + (uchar *)&phy_addr, 1); + phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, + (uchar *)&phy_size, 1); + + asc_dvc->cfg->mcode_date = + AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); + asc_dvc->cfg->mcode_version = + AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); + + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return warn_code; + } + if (AscStartChip(iop_base) != 1) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return warn_code; + } + + return warn_code; +} + +static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) +{ + ushort warn_code; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && + !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; + if (asc_dvc->err_code != 0) + return UW_ERR; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return warn_code; + } + AscDisableInterrupt(iop_base); + warn_code |= AscInitLram(asc_dvc); + if (asc_dvc->err_code != 0) + return UW_ERR; + ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", + (ulong)_asc_mcode_chksum); + if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, + _asc_mcode_size) != _asc_mcode_chksum) { + asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + return warn_code; + } + warn_code |= AscInitMicroCodeVar(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; + AscEnableInterrupt(iop_base); + return warn_code; +} -#ifdef CONFIG_PCI /* - * Initialize the ADV_DVC_VAR structure. + * Load the Microcode * - * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. + * Write the microcode image to RISC memory starting at address 0. * - * For a non-fatal error return a warning code. If there are no warnings - * then 0 is returned. + * The microcode is stored compressed in the following format: + * + * 254 word (508 byte) table indexed by byte code followed + * by the following byte codes: + * + * 1-Byte Code: + * 00: Emit word 0 in table. + * 01: Emit word 1 in table. + * . + * FD: Emit word 253 in table. + * + * Multi-Byte Code: + * FE WW WW: (3 byte code) Word to emit is the next word WW WW. + * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * + * Returns 0 or an error if the checksum doesn't match */ -static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) +static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, + int memsize, int chksum) { - ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; - unsigned short warn_code = 0; - AdvPortAddr iop_base = asc_dvc->iop_base; - u16 cmd; - int status; + int i, j, end, len = 0; + ADV_DCNT sum; - asc_dvc->err_code = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Save the state of the PCI Configuration Command Register - * "Parity Error Response Control" Bit. If the bit is clear (0), - * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore - * DMA parity errors. - */ - asc_dvc->cfg->control_flag = 0; - pci_read_config_word(pdev, PCI_COMMAND, &cmd); - if ((cmd & PCI_COMMAND_PARITY) == 0) - asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; + for (i = 253 * 2; i < size; i++) { + if (buf[i] == 0xff) { + unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; + for (j = 0; j < buf[i + 1]; j++) { + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + i += 3; + } else if (buf[i] == 0xfe) { + unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; + AdvWriteWordAutoIncLram(iop_base, word); + i += 2; + len += 2; + } else { + unsigned char off = buf[i] * 2; + unsigned short word = (buf[off + 1] << 8) | buf[off]; + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + } - asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | - ADV_LIB_VERSION_MINOR; - asc_dvc->cfg->chip_version = - AdvGetChipVersion(iop_base, asc_dvc->bus_type); + end = len; - ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", - (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), - (ushort)ADV_CHIP_ID_BYTE); + while (len < memsize) { + AdvWriteWordAutoIncLram(iop_base, 0); + len += 2; + } - ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", - (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), - (ushort)ADV_CHIP_ID_WORD); + /* Verify the microcode checksum. */ + sum = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Reset the chip to start and allow register writes. - */ - if (AdvFindSignature(iop_base) == 0) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return ADV_ERROR; - } else { - /* - * The caller must set 'chip_type' to a valid setting. - */ - if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && - asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && - asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { - asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; - return ADV_ERROR; - } + for (len = 0; len < end; len += 2) { + sum += AdvReadWordAutoIncLram(iop_base); + } - /* - * Reset Chip. - */ - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); + if (sum != chksum) + return ASC_IERR_MCODE_CHKSUM; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitFrom38C1600EEP(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitFrom38C0800EEP(asc_dvc); - } else { - status = AdvInitFrom3550EEP(asc_dvc); - } - warn_code |= status; - } + return 0; +} - if (warn_code != 0) { - ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", - boardp->id, warn_code); - } +/* + * DvcGetPhyAddr() + * + * Return the physical address of 'vaddr' and set '*lenp' to the + * number of physically contiguous bytes that follow 'vaddr'. + * 'flag' indicates the type of structure whose physical address + * is being translated. + * + * Note: Because Linux currently doesn't page the kernel and all + * kernel buffers are physically contiguous, leave '*lenp' unchanged. + */ +ADV_PADDR +DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, + uchar *vaddr, ADV_SDCNT *lenp, int flag) +{ + ADV_PADDR paddr = virt_to_bus(vaddr); - if (asc_dvc->err_code) { - ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", - boardp->id, asc_dvc->err_code); - } + ASC_DBG4(4, "DvcGetPhyAddr: vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", + vaddr, lenp, (ulong)*((ulong *)lenp), (ulong)paddr); - return asc_dvc->err_code; + return paddr; } -#endif static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) { @@ -11183,75 +6753,117 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) } /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - * - * The microcode is stored compressed in the following format: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: + * Send an idle command to the chip and wait for completion. * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. + * Command completion is polled for once per microsecond. * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * The function can be called from anywhere including an interrupt handler. + * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() + * functions to prevent reentrancy. * - * Returns 0 or an error if the checksum doesn't match + * Return Values: + * ADV_TRUE - command completed successfully + * ADV_FALSE - command failed + * ADV_ERROR - command timed out */ -static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, - int memsize, int chksum) +static int +AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, + ushort idle_cmd, ADV_DCNT idle_cmd_parameter) { - int i, j, end, len = 0; - ADV_DCNT sum; + int result; + ADV_DCNT i, j; + AdvPortAddr iop_base; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + iop_base = asc_dvc->iop_base; - for (i = 253 * 2; i < size; i++) { - if (buf[i] == 0xff) { - unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; - for (j = 0; j < buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; - } - i += 3; - } else if (buf[i] == 0xfe) { - unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; - AdvWriteWordAutoIncLram(iop_base, word); - i += 2; - len += 2; - } else { - unsigned char off = buf[i] * 2; - unsigned short word = (buf[off + 1] << 8) | buf[off]; - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; + /* + * Clear the idle command status which is set by the microcode + * to a non-zero value to indicate when the command is completed. + * The non-zero result is one of the IDLE_CMD_STATUS_* values + */ + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); + + /* + * Write the idle command value after the idle command parameter + * has been written to avoid a race condition. If the order is not + * followed, the microcode may process the idle command before the + * parameters have been written to LRAM. + */ + AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, + cpu_to_le32(idle_cmd_parameter)); + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); + + /* + * Tickle the RISC to tell it to process the idle command. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_b' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); + } + + /* Wait for up to 100 millisecond for the idle command to timeout. */ + for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { + /* Poll once each microsecond for command completion. */ + for (j = 0; j < SCSI_US_PER_MSEC; j++) { + AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, + result); + if (result != 0) + return result; + udelay(1); } } - end = len; + BUG(); /* The idle command should never timeout. */ + return ADV_ERROR; +} - while (len < memsize) { - AdvWriteWordAutoIncLram(iop_base, 0); - len += 2; +/* + * Reset SCSI Bus and purge all outstanding requests. + * + * Return Value: + * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. + * ADV_FALSE(0) - Microcode command failed. + * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC + * may be hung which requires driver recovery. + */ +static int AdvResetSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + + /* + * Send the SCSI Bus Reset idle start idle command which asserts + * the SCSI Bus Reset signal. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); + if (status != ADV_TRUE) { + return status; } - /* Verify the microcode checksum. */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + /* + * Delay for the specified SCSI Bus Reset hold time. + * + * The hold time delay is done on the host because the RISC has no + * microsecond accurate timer. + */ + udelay(ASC_SCSI_RESET_HOLD_TIME_US); - for (len = 0; len < end; len += 2) { - sum += AdvReadWordAutoIncLram(iop_base); + /* + * Send the SCSI Bus Reset end idle command which de-asserts + * the SCSI Bus Reset signal and purges any pending requests. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); + if (status != ADV_TRUE) { + return status; } - if (sum != chksum) - return ASC_IERR_MCODE_CHKSUM; + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - return 0; + return status; } /* @@ -12661,6 +8273,4917 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) } /* + * Reset chip and SCSI Bus. + * + * Return Value: + * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. + * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. + */ +static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + ushort wdtr_able, sdtr_able, tagqng_able; + ushort ppr_able = 0; + uchar tid, max_cmd[ADV_MAX_TID + 1]; + AdvPortAddr iop_base; + ushort bios_sig; + + iop_base = asc_dvc->iop_base; + + /* + * Save current per TID negotiated values. + */ + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + /* + * Force the AdvInitAsc3550/38C0800Driver() function to + * perform a SCSI Bus Reset by clearing the BIOS signature word. + * The initialization functions assumes a SCSI Bus Reset is not + * needed if the BIOS signature word is present. + */ + AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); + + /* + * Stop chip and reset it. + */ + AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); + + /* + * Reset Adv Library error code, if any, and try + * re-initializing the chip. + */ + asc_dvc->err_code = 0; + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitAsc38C1600Driver(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitAsc38C0800Driver(asc_dvc); + } else { + status = AdvInitAsc3550Driver(asc_dvc); + } + + /* Translate initialization return value to status value. */ + if (status == 0) { + status = ADV_TRUE; + } else { + status = ADV_FALSE; + } + + /* + * Restore the BIOS signature word. + */ + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + + /* + * Restore per TID negotiated values. + */ + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + return status; +} + +/* + * adv_async_callback() - Adv Library asynchronous event callback function. + */ +static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +{ + switch (code) { + case ADV_ASYNC_SCSI_BUS_RESET_DET: + /* + * The firmware detected a SCSI Bus reset. + */ + ASC_DBG(0, + "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); + break; + + case ADV_ASYNC_RDMA_FAILURE: + /* + * Handle RDMA failure by resetting the SCSI Bus and + * possibly the chip if it is unresponsive. Log the error + * with a unique code. + */ + ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); + AdvResetChipAndSB(adv_dvc_varp); + break; + + case ADV_HOST_SCSI_BUS_RESET: + /* + * Host generated SCSI bus reset occurred. + */ + ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); + break; + + default: + ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); + break; + } +} + +/* + * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * + * Callback function for the Wide SCSI Adv Library. + */ +static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +{ + asc_board_t *boardp; + adv_req_t *reqp; + adv_sgblk_t *sgblkp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + ADV_DCNT resid_cnt; + + ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", + (ulong)adv_dvc_varp, (ulong)scsiqp); + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + + /* + * Get the adv_req_t structure for the command that has been + * completed. The adv_req_t structure actually contains the + * completed ADV_SCSI_REQ_Q structure. + */ + reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); + ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); + if (reqp == NULL) { + ASC_PRINT("adv_isr_callback: reqp is NULL\n"); + return; + } + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + * + * Note: The adv_req_t request structure and adv_sgblk_t structure, + * if any, are dropped, because a board structure pointer can not be + * determined. + */ + scp = reqp->cmndp; + ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); + if (scp == NULL) { + ASC_PRINT + ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); + + /* + * 'done_status' contains the command's ending status. + */ + switch (scsiqp->done_status) { + case QD_NO_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * then return the number of underrun bytes. + */ + resid_cnt = le32_to_cpu(scsiqp->data_cnt); + if (scp->request_bufflen != 0 && resid_cnt != 0 && + resid_cnt <= scp->request_bufflen) { + ASC_DBG1(1, + "adv_isr_callback: underrun condition %lu bytes\n", + (ulong)resid_cnt); + scp->resid = resid_cnt; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); + switch (scsiqp->host_status) { + case QHSTA_NO_ERROR: + if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(scsiqp->scsi_status); + } else { + scp->result = STATUS_BYTE(scsiqp->scsi_status); + } + break; + + default: + /* Some other QHSTA error occurred. */ + ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", + scsiqp->host_status); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); + break; + + default: + ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", + scsiqp->done_status); + scp->result = + HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + scsiqp->done_status == QD_NO_ERROR && + scsiqp->host_status == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + /* + * Free all 'adv_sgblk_t' structures allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + + /* + * Free the adv_req_t structure used with the command by adding + * it back to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + ASC_DBG(1, "adv_isr_callback: done\n"); + + return; +} + +/* + * Adv Library Interrupt Service Routine + * + * This function is called by a driver's interrupt service routine. + * The function disables and re-enables interrupts. + * + * When a microcode idle command is completed, the ADV_DVC_VAR + * 'idle_cmd_done' field is set to ADV_TRUE. + * + * Note: AdvISR() can be called when interrupts are disabled or even + * when there is no hardware interrupt condition present. It will + * always check for completed idle commands and microcode requests. + * This is an important feature that shouldn't be changed because it + * allows commands to be completed from polling mode loops. + * + * Return: + * ADV_TRUE(1) - interrupt was pending + * ADV_FALSE(0) - no interrupt was pending + */ +static int AdvISR(ADV_DVC_VAR *asc_dvc) +{ + AdvPortAddr iop_base; + uchar int_stat; + ushort target_bit; + ADV_CARR_T *free_carrp; + ADV_VADDR irq_next_vpa; + ADV_SCSI_REQ_Q *scsiq; + + iop_base = asc_dvc->iop_base; + + /* Reading the register clears the interrupt. */ + int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); + + if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | + ADV_INTR_STATUS_INTRC)) == 0) { + return ADV_FALSE; + } + + /* + * Notify the driver of an asynchronous microcode condition by + * calling the adv_async_callback function. The function + * is passed the microcode ASC_MC_INTRB_CODE byte value. + */ + if (int_stat & ADV_INTR_STATUS_INTRB) { + uchar intrb_code; + + AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && + asc_dvc->carr_pending_cnt != 0) { + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + AdvWriteByteRegister(iop_base, + IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } + } + + adv_async_callback(asc_dvc, intrb_code); + } + + /* + * Check if the IRQ stopper carrier contains a completed request. + */ + while (((irq_next_vpa = + le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { + /* + * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. + * The RISC will have set 'areq_vpa' to a virtual address. + * + * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr + * field to the carrier ADV_CARR_T.areq_vpa field. The conversion + * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' + * in AdvExeScsiQueue(). + */ + scsiq = (ADV_SCSI_REQ_Q *) + ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); + + /* + * Request finished with good status and the queue was not + * DMAed to host memory by the firmware. Set all status fields + * to indicate good status. + */ + if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { + scsiq->done_status = QD_NO_ERROR; + scsiq->host_status = scsiq->scsi_status = 0; + scsiq->data_cnt = 0L; + } + + /* + * Advance the stopper pointer to the next carrier + * ignoring the lower four bits. Free the previous + * stopper carrier. + */ + free_carrp = asc_dvc->irq_sp; + asc_dvc->irq_sp = (ADV_CARR_T *) + ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); + + free_carrp->next_vpa = + cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); + asc_dvc->carr_freelist = free_carrp; + asc_dvc->carr_pending_cnt--; + + target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); + + /* + * Clear request microcode control flag. + */ + scsiq->cntl = 0; + + /* + * Notify the driver of the completed request by passing + * the ADV_SCSI_REQ_Q pointer to its callback function. + */ + scsiq->a_flag |= ADV_SCSIQ_DONE; + adv_isr_callback(asc_dvc, scsiq); + /* + * Note: After the driver callback function is called, 'scsiq' + * can no longer be referenced. + * + * Fall through and continue processing other completed + * requests... + */ + } + return ADV_TRUE; +} + +static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) +{ + if (asc_dvc->err_code == 0) { + asc_dvc->err_code = err_code; + AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, + err_code); + } + return err_code; +} + +static void AscAckInterrupt(PortAddr iop_base) +{ + uchar host_flag; + uchar risc_flag; + ushort loop; + + loop = 0; + do { + risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); + if (loop++ > 0x7FFF) { + break; + } + } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); + host_flag = + AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); + AscSetChipStatus(iop_base, CIW_INT_ACK); + loop = 0; + while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { + AscSetChipStatus(iop_base, CIW_INT_ACK); + if (loop++ > 3) { + break; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + return; +} + +static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) +{ + uchar *period_table; + int max_index; + int min_index; + int i; + + period_table = asc_dvc->sdtr_period_tbl; + max_index = (int)asc_dvc->max_sdtr_index; + min_index = (int)asc_dvc->host_init_sdtr_index; + if ((syn_time <= period_table[max_index])) { + for (i = min_index; i < (max_index - 1); i++) { + if (syn_time <= period_table[i]) { + return (uchar)i; + } + } + return (uchar)max_index; + } else { + return (uchar)(max_index + 1); + } +} + +static uchar +AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) +{ + EXT_MSG sdtr_buf; + uchar sdtr_period_index; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + sdtr_buf.msg_type = EXTENDED_MESSAGE; + sdtr_buf.msg_len = MS_SDTR_LEN; + sdtr_buf.msg_req = EXTENDED_SDTR; + sdtr_buf.xfer_period = sdtr_period; + sdtr_offset &= ASC_SYN_MAX_OFFSET; + sdtr_buf.req_ack_offset = sdtr_offset; + sdtr_period_index = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_index <= asc_dvc->max_sdtr_index) { + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return ((sdtr_period_index << 4) | sdtr_offset); + } else { + sdtr_buf.req_ack_offset = 0; + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return 0; + } +} + +static uchar +AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) +{ + uchar byte; + uchar sdtr_period_ix; + + sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_ix > asc_dvc->max_sdtr_index) { + return 0xFF; + } + byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); + return byte; +} + +static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) +{ + ASC_SCSI_BIT_ID_TYPE org_id; + int i; + int sta = TRUE; + + AscSetBank(iop_base, 1); + org_id = AscReadChipDvcID(iop_base); + for (i = 0; i <= ASC_MAX_TID; i++) { + if (org_id == (0x01 << i)) + break; + } + org_id = (ASC_SCSI_BIT_ID_TYPE) i; + AscWriteChipDvcID(iop_base, id); + if (AscReadChipDvcID(iop_base) == (0x01 << id)) { + AscSetBank(iop_base, 0); + AscSetChipSyn(iop_base, sdtr_data); + if (AscGetChipSyn(iop_base) != sdtr_data) { + sta = FALSE; + } + } else { + sta = FALSE; + } + AscSetBank(iop_base, 1); + AscWriteChipDvcID(iop_base, org_id); + AscSetBank(iop_base, 0); + return (sta); +} + +static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) +{ + AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); +} + +static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) +{ + EXT_MSG ext_msg; + EXT_MSG out_msg; + ushort halt_q_addr; + int sdtr_accept; + ushort int_halt_code; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + uchar tag_code; + uchar q_status; + uchar halt_qp; + uchar sdtr_data; + uchar target_ix; + uchar q_cntl, tid_no; + uchar cur_dvc_qng; + uchar asyn_sdtr; + uchar scsi_status; + asc_board_t *boardp; + + BUG_ON(!asc_dvc->drv_ptr); + boardp = asc_dvc->drv_ptr; + + iop_base = asc_dvc->iop_base; + int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); + + halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); + halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); + target_ix = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TARGET_IX)); + q_cntl = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + tid_no = ASC_TIX_TO_TID(target_ix); + target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; + } else { + asyn_sdtr = 0; + } + if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, 0, tid_no); + boardp->sdtr_data[tid_no] = 0; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGIN_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + + if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_SDTR && + ext_msg.msg_len == MS_SDTR_LEN) { + sdtr_accept = TRUE; + if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { + + sdtr_accept = FALSE; + ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; + } + if ((ext_msg.xfer_period < + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]) + || (ext_msg.xfer_period > + asc_dvc->sdtr_period_tbl[asc_dvc-> + max_sdtr_index])) { + sdtr_accept = FALSE; + ext_msg.xfer_period = + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]; + } + if (sdtr_accept) { + sdtr_data = + AscCalSDTRData(asc_dvc, ext_msg.xfer_period, + ext_msg.req_ack_offset); + if ((sdtr_data == 0xFF)) { + + q_cntl |= QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, + tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + } + if (ext_msg.req_ack_offset == 0) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + } else { + if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + } else { + + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + ext_msg.xfer_period, + ext_msg.req_ack_offset); + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + } + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_WDTR && + ext_msg.msg_len == MS_WDTR_LEN) { + + ext_msg.wdtr_width = 0; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else { + + ext_msg.msg_type = MESSAGE_REJECT; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } + } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { + + q_cntl |= QC_REQ_SENSE; + + if ((asc_dvc->init_sdtr & target_id) != 0) { + + asc_dvc->sdtr_done &= ~target_id; + + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + + tag_code = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_TAG_CODE)); + tag_code &= 0xDC; + if ((asc_dvc->pci_fix_asyn_xfer & target_id) + && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) + ) { + + tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT + | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); + + } + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TAG_CODE), + tag_code); + + q_status = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_STATUS)); + q_status |= (QS_READY | QS_BUSY); + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + q_status); + + scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); + + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { + + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&out_msg, + sizeof(EXT_MSG) >> 1); + + if ((out_msg.msg_type == EXTENDED_MESSAGE) && + (out_msg.msg_len == MS_SDTR_LEN) && + (out_msg.msg_req == EXTENDED_SDTR)) { + + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + q_cntl &= ~QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { + + scsi_status = AscReadLramByte(iop_base, + (ushort)((ushort)halt_q_addr + + (ushort) + ASC_SCSIQ_SCSI_STATUS)); + cur_dvc_qng = + AscReadLramByte(iop_base, + (ushort)((ushort)ASC_QADR_BEG + + (ushort)target_ix)); + if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { + + scsi_busy = AscReadLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B); + scsi_busy |= target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, scsi_busy); + asc_dvc->queue_full_or_busy |= target_id; + + if (scsi_status == SAM_STAT_TASK_SET_FULL) { + if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { + cur_dvc_qng -= 1; + asc_dvc->max_dvc_qng[tid_no] = + cur_dvc_qng; + + AscWriteLramByte(iop_base, + (ushort)((ushort) + ASCV_MAX_DVC_QNG_BEG + + (ushort) + tid_no), + cur_dvc_qng); + + /* + * Set the device queue depth to the + * number of active requests when the + * QUEUE FULL condition was encountered. + */ + boardp->queue_full |= target_id; + boardp->queue_full_cnt[tid_no] = + cur_dvc_qng; + } + } + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#if CC_VERY_LONG_SG_LIST + else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { + uchar q_no; + ushort q_addr; + uchar sg_wk_q_no; + uchar first_sg_wk_q_no; + ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ + ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ + ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ + ushort sg_list_dwords; + ushort sg_entry_cnt; + uchar next_qp; + int i; + + q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); + if (q_no == ASC_QLINK_END) + return 0; + + q_addr = ASC_QNO_TO_QADDR(q_no); + + /* + * Convert the request's SRB pointer to a host ASC_SCSI_REQ + * structure pointer using a macro provided by the driver. + * The ASC_SCSI_REQ pointer provides a pointer to the + * host ASC_SG_HEAD structure. + */ + /* Read request's SRB pointer. */ + scsiq = (ASC_SCSI_Q *) + ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, + (ushort) + (q_addr + + ASC_SCSIQ_D_SRBPTR)))); + + /* + * Get request's first and working SG queue. + */ + sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_SG_WK_QP)); + + first_sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FIRST_SG_WK_QP)); + + /* + * Reset request's working SG queue back to the + * first SG queue. + */ + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SG_WK_QP), + first_sg_wk_q_no); + + sg_head = scsiq->sg_head; + + /* + * Set sg_entry_cnt to the number of SG elements + * that will be completed on this interrupt. + * + * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 + * SG elements. The data_cnt and data_addr fields which + * add 1 to the SG element capacity are not used when + * restarting SG handling after a halt. + */ + if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that + * will need to be handled on the next interrupt. + */ + scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); + } else { + sg_entry_cnt = scsiq->remain_sg_entry_cnt; + scsiq->remain_sg_entry_cnt = 0; + } + + /* + * Copy SG elements into the list of allocated SG queues. + * + * Last index completed is saved in scsiq->next_sg_index. + */ + next_qp = first_sg_wk_q_no; + q_addr = ASC_QNO_TO_QADDR(next_qp); + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + /* + * After very first SG queue RISC FW uses next + * SG queue first element then checks sg_list_cnt + * against zero and then decrements, so set + * sg_list_cnt 1 less than number of SG elements + * in each SG queue. + */ + scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } else { + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (scsiq->remain_sg_entry_cnt != 0) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { + scsi_sg_q.cntl |= QCSG_SG_XFER_END; + } + /* equals sg_entry_cnt * 2 */ + sg_list_dwords = sg_entry_cnt << 1; + scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; + sg_entry_cnt = 0; + } + + scsi_sg_q.q_no = next_qp; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[scsiq->next_sg_index], + sg_list_dwords); + + scsiq->next_sg_index += ASC_SG_LIST_PER_Q; + + /* + * If the just completed SG queue contained the + * last SG element, then no more SG queues need + * to be written. + */ + if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { + break; + } + + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + q_addr = ASC_QNO_TO_QADDR(next_qp); + } + + /* + * Clear the halt condition so the RISC will be restarted + * after the return. + */ + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#endif /* CC_VERY_LONG_SG_LIST */ + return (0); +} + +/* + * void + * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Input an ASC_QDONE_INFO structure from the chip + */ +static void +DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) +{ + int i; + ushort word; + + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 10) { + continue; + } + word = inpw(iop_base + IOP_RAM_DATA); + inbuf[i] = word & 0xff; + inbuf[i + 1] = (word >> 8) & 0xff; + } + ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); +} + +static uchar +_AscCopyLramScsiDoneQ(PortAddr iop_base, + ushort q_addr, + ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) +{ + ushort _val; + uchar sg_queue_cnt; + + DvcGetQinfo(iop_base, + q_addr + ASC_SCSIQ_DONE_INFO_BEG, + (uchar *)scsiq, + (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); + + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); + scsiq->q_status = (uchar)_val; + scsiq->q_no = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + scsiq->cntl = (uchar)_val; + sg_queue_cnt = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SENSE_LEN)); + scsiq->sense_len = (uchar)_val; + scsiq->extra_bytes = (uchar)(_val >> 8); + + /* + * Read high word of remain bytes from alternate location. + */ + scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort) + ASC_SCSIQ_W_ALT_DC1))) + << 16); + /* + * Read low word of remain bytes from original location. + */ + scsiq->remain_bytes += AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_DW_REMAIN_XFER_CNT)); + + scsiq->remain_bytes &= max_dma_count; + return sg_queue_cnt; +} + +/* + * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * + * Interrupt callback function for the Narrow SCSI Asc Library. + */ +static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +{ + asc_board_t *boardp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + + ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", + (ulong)asc_dvc_varp, (ulong)qdonep); + ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + */ + scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); + ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); + + if (scp == NULL) { + ASC_PRINT("asc_isr_callback: scp is NULL\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + + /* + * 'qdonep' contains the command's ending status. + */ + switch (qdonep->d3.done_stat) { + case QD_NO_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * return the number of underrun bytes. + */ + if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && + qdonep->remain_bytes <= scp->request_bufflen) { + ASC_DBG1(1, + "asc_isr_callback: underrun condition %u bytes\n", + (unsigned)qdonep->remain_bytes); + scp->resid = qdonep->remain_bytes; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); + switch (qdonep->d3.host_stat) { + case QHSTA_NO_ERROR: + if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(qdonep->d3.scsi_stat); + } else { + scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); + } + break; + + default: + /* QHSTA error occurred */ + ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", + qdonep->d3.host_stat); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + + default: + ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", + qdonep->d3.done_stat); + scp->result = + HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + qdonep->d3.done_stat == QD_NO_ERROR && + qdonep->d3.host_stat == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + return; +} + +static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) +{ + uchar next_qp; + uchar n_q_used; + uchar sg_list_qp; + uchar sg_queue_cnt; + uchar q_cnt; + uchar done_q_tail; + uchar tid_no; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + ushort q_addr; + ushort sg_q_addr; + uchar cur_target_qng; + ASC_QDONE_INFO scsiq_buf; + ASC_QDONE_INFO *scsiq; + int false_overrun; + + iop_base = asc_dvc->iop_base; + n_q_used = 1; + scsiq = (ASC_QDONE_INFO *)&scsiq_buf; + done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); + q_addr = ASC_QNO_TO_QADDR(done_q_tail); + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); + if (next_qp != ASC_QLINK_END) { + AscPutVarDoneQTail(iop_base, next_qp); + q_addr = ASC_QNO_TO_QADDR(next_qp); + sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, + asc_dvc->max_dma_count); + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + (uchar)(scsiq-> + q_status & (uchar)~(QS_READY | + QS_ABORTED))); + tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); + target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); + if ((scsiq->cntl & QC_SG_HEAD) != 0) { + sg_q_addr = q_addr; + sg_list_qp = next_qp; + for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { + sg_list_qp = AscReadLramByte(iop_base, + (ushort)(sg_q_addr + + (ushort) + ASC_SCSIQ_B_FWD)); + sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); + if (sg_list_qp == ASC_QLINK_END) { + AscSetLibErrorCode(asc_dvc, + ASCQ_ERR_SG_Q_LINKS); + scsiq->d3.done_stat = QD_WITH_ERROR; + scsiq->d3.host_stat = + QHSTA_D_QDONE_SG_LIST_CORRUPTED; + goto FATAL_ERR_QDONE; + } + AscWriteLramByte(iop_base, + (ushort)(sg_q_addr + (ushort) + ASC_SCSIQ_B_STATUS), + QS_FREE); + } + n_q_used = sg_queue_cnt + 1; + AscPutVarDoneQTail(iop_base, sg_list_qp); + } + if (asc_dvc->queue_full_or_busy & target_id) { + cur_target_qng = AscReadLramByte(iop_base, + (ushort)((ushort) + ASC_QADR_BEG + + (ushort) + scsiq->d2. + target_ix)); + if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { + scsi_busy = AscReadLramByte(iop_base, (ushort) + ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, + scsi_busy); + asc_dvc->queue_full_or_busy &= ~target_id; + } + } + if (asc_dvc->cur_total_qng >= n_q_used) { + asc_dvc->cur_total_qng -= n_q_used; + if (asc_dvc->cur_dvc_qng[tid_no] != 0) { + asc_dvc->cur_dvc_qng[tid_no]--; + } + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); + scsiq->d3.done_stat = QD_WITH_ERROR; + goto FATAL_ERR_QDONE; + } + if ((scsiq->d2.srb_ptr == 0UL) || + ((scsiq->q_status & QS_ABORTED) != 0)) { + return (0x11); + } else if (scsiq->q_status == QS_DONE) { + false_overrun = FALSE; + if (scsiq->extra_bytes != 0) { + scsiq->remain_bytes += + (ADV_DCNT)scsiq->extra_bytes; + } + if (scsiq->d3.done_stat == QD_WITH_ERROR) { + if (scsiq->d3.host_stat == + QHSTA_M_DATA_OVER_RUN) { + if ((scsiq-> + cntl & (QC_DATA_IN | QC_DATA_OUT)) + == 0) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } else if (false_overrun) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } + } else if (scsiq->d3.host_stat == + QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { + AscStopChip(iop_base); + AscSetChipControl(iop_base, + (uchar)(CC_SCSI_RESET + | CC_HALT)); + udelay(60); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, + CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + AscSetChipControl(iop_base, 0); + } + } + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } else { + if ((AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_CDB_BEG)) + == START_STOP)) { + asc_dvc->unit_not_ready &= ~target_id; + if (scsiq->d3.done_stat != QD_NO_ERROR) { + asc_dvc->start_motor &= + ~target_id; + } + } + } + return (1); + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); + FATAL_ERR_QDONE: + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } + return (0x80); + } + } + return (0); +} + +static int AscISR(ASC_DVC_VAR *asc_dvc) +{ + ASC_CS_TYPE chipstat; + PortAddr iop_base; + ushort saved_ram_addr; + uchar ctrl_reg; + uchar saved_ctrl_reg; + int int_pending; + int status; + uchar host_flag; + + iop_base = asc_dvc->iop_base; + int_pending = FALSE; + + if (AscIsIntPending(iop_base) == 0) + return int_pending; + + if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { + return ERR; + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); + return ERR; + } + if (asc_dvc->is_in_int) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); + return ERR; + } + asc_dvc->is_in_int = TRUE; + ctrl_reg = AscGetChipControl(iop_base); + saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | + CC_SINGLE_STEP | CC_DIAG | CC_TEST)); + chipstat = AscGetChipStatus(iop_base); + if (chipstat & CSW_SCSI_RESET_LATCH) { + if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { + int i = 10; + int_pending = TRUE; + asc_dvc->sdtr_done = 0; + saved_ctrl_reg &= (uchar)(~CC_HALT); + while ((AscGetChipStatus(iop_base) & + CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { + mdelay(100); + } + AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + chipstat = AscGetChipStatus(iop_base); + } + } + saved_ram_addr = AscGetChipLramAddr(iop_base); + host_flag = AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & + (uchar)(~ASC_HOST_FLAG_IN_ISR); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); + if ((chipstat & CSW_INT_PENDING) || (int_pending)) { + AscAckInterrupt(iop_base); + int_pending = TRUE; + if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { + if (AscIsrChipHalted(asc_dvc) == ERR) { + goto ISR_REPORT_QDONE_FATAL_ERROR; + } else { + saved_ctrl_reg &= (uchar)(~CC_HALT); + } + } else { + ISR_REPORT_QDONE_FATAL_ERROR: + if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { + while (((status = + AscIsrQDone(asc_dvc)) & 0x01) != 0) { + } + } else { + do { + if ((status = + AscIsrQDone(asc_dvc)) == 1) { + break; + } + } while (status == 0x11); + } + if ((status & 0x80) != 0) + int_pending = ERR; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + AscSetChipLramAddr(iop_base, saved_ram_addr); + AscSetChipControl(iop_base, saved_ctrl_reg); + asc_dvc->is_in_int = FALSE; + return int_pending; +} + +/* + * 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. + */ +static int advansys_reset(struct scsi_cmnd *scp) +{ + struct Scsi_Host *shost; + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ulong flags; + int status; + int ret = SUCCESS; + + ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); + +#ifdef ADVANSYS_STATS + if (scp->device->host != NULL) { + ASC_STATS(scp->device->host, reset); + } +#endif /* ADVANSYS_STATS */ + + if ((shost = scp->device->host) == NULL) { + scp->result = HOST_BYTE(DID_ERROR); + return FAILED; + } + + boardp = ASC_BOARDP(shost); + + 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); + + 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%x\n", boardp->id, + asc_dvc_varp->err_code); + ret = FAILED; + } else if (status) { + ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " + "warning: 0x%x\n", 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"); + 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; + } + spin_lock_irqsave(&boardp->lock, flags); + AdvISR(adv_dvc_varp); + } + /* Board lock is held. */ + + /* Save the time of the most recently completed reset. */ + boardp->last_reset = jiffies; + + /* Clear reset flag. */ + boardp->flags &= ~ASC_HOST_IN_RESET; + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG1(1, "advansys_reset: ret %d\n", 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 + */ +static int +advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, + sector_t capacity, int ip[]) +{ + asc_board_t *boardp; + + ASC_DBG(1, "advansys_biosparam: begin\n"); + ASC_STATS(sdev->host, biosparam); + boardp = ASC_BOARDP(sdev->host); + if (ASC_NARROW_BOARD(boardp)) { + if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & + ASC_CNTL_BIOS_GT_1GB) && 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) && capacity > 0x200000) { + ip[0] = 255; + ip[1] = 63; + } else { + ip[0] = 64; + ip[1] = 32; + } + } + ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); + ASC_DBG(1, "advansys_biosparam: end\n"); + return 0; +} + +/* + * First-level interrupt handler. + * + * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + */ +static irqreturn_t advansys_interrupt(int irq, void *dev_id) +{ + unsigned long flags; + struct Scsi_Host *shost = dev_id; + asc_board_t *boardp = ASC_BOARDP(shost); + irqreturn_t result = IRQ_NONE; + + ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); + spin_lock_irqsave(&boardp->lock, flags); + if (ASC_NARROW_BOARD(boardp)) { + if (AscIsIntPending(shost->io_port)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); + AscISR(&boardp->dvc_var.asc_dvc_var); + } + } else { + ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); + if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + } + } + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG(1, "advansys_interrupt: end\n"); + return result; +} + +static int AscHostReqRiscHalt(PortAddr iop_base) +{ + int count = 0; + int sta = 0; + uchar saved_stop_code; + + if (AscIsChipHalted(iop_base)) + return (1); + saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); + do { + if (AscIsChipHalted(iop_base)) { + sta = 1; + break; + } + mdelay(100); + } while (count++ < 20); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); + return (sta); +} + +static int +AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) +{ + int sta = FALSE; + + if (AscHostReqRiscHalt(iop_base)) { + sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscStartChip(iop_base); + } + return sta; +} + +static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) +{ + char type = sdev->type; + ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; + + if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) + return; + if (asc_dvc->init_sdtr & tid_bits) + return; + + if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) + asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; + + asc_dvc->pci_fix_asyn_xfer |= tid_bits; + if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || + (type == TYPE_ROM) || (type == TYPE_TAPE)) + asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; + + if (asc_dvc->pci_fix_asyn_xfer & tid_bits) + AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, + ASYN_SDTR_DATA_FIX_PCI_REV_AB); +} + +static void +advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +{ + ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; + ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; + + if (sdev->lun == 0) { + ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; + if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { + asc_dvc->init_sdtr |= tid_bit; + } else { + asc_dvc->init_sdtr &= ~tid_bit; + } + + if (orig_init_sdtr != asc_dvc->init_sdtr) + AscAsyncFix(asc_dvc, sdev); + } + + if (sdev->tagged_supported) { + if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng |= tid_bit; + asc_dvc->use_tagged_qng |= tid_bit; + } + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + asc_dvc->max_dvc_qng[sdev->id]); + } + } else { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng &= ~tid_bit; + asc_dvc->use_tagged_qng &= ~tid_bit; + } + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } + + if ((sdev->lun == 0) && + (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { + AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, + asc_dvc->use_tagged_qng); + AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, + asc_dvc->cfg->can_tagged_qng); + + asc_dvc->max_dvc_qng[sdev->id] = + asc_dvc->cfg->max_tag_qng[sdev->id]; + AscWriteLramByte(asc_dvc->iop_base, + (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), + asc_dvc->max_dvc_qng[sdev->id]); + } +} + +/* + * Wide Transfers + * + * If the EEPROM enabled WDTR for the device and the device supports wide + * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and + * write the new value to the microcode. + */ +static void +advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + + /* + * Clear the microcode SDTR and WDTR negotiation done indicators for + * the target to cause it to negotiate with the new setting set above. + * WDTR when accepted causes the target to enter asynchronous mode, so + * SDTR must be negotiated. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); +} + +/* + * Synchronous Transfers + * + * If the EEPROM enabled SDTR for the device and the device + * supports synchronous transfers, then turn on the device's + * 'sdtr_able' bit. Write the new value to the microcode. + */ +static void +advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + + /* + * Clear the microcode "SDTR negotiation" done indicator for the + * target to cause it to negotiate with the new setting set above. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); +} + +/* + * PPR (Parallel Protocol Request) Capable + * + * If the device supports DT mode, then it must be PPR capable. + * The PPR message will be used in place of the SDTR and WDTR + * messages to negotiate synchronous speed and offset, transfer + * width, and protocol options. + */ +static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, + AdvPortAddr iop_base, unsigned short tidmask) +{ + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); + adv_dvc->ppr_able |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); +} + +static void +advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) +{ + AdvPortAddr iop_base = adv_dvc->iop_base; + unsigned short tidmask = 1 << sdev->id; + + if (sdev->lun == 0) { + /* + * Handle WDTR, SDTR, and Tag Queuing. If the feature + * is enabled in the EEPROM and the device supports the + * feature, then enable it in the microcode. + */ + + if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) + advansys_wide_enable_wdtr(iop_base, tidmask); + if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) + advansys_wide_enable_sdtr(iop_base, tidmask); + if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) + advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + + /* + * Tag Queuing is disabled for the BIOS which runs in polled + * mode and would see no benefit from Tag Queuing. Also by + * disabling Tag Queuing in the BIOS devices with Tag Queuing + * bugs will at least work with the BIOS. + */ + if ((adv_dvc->tagqng_able & tidmask) && + sdev->tagged_supported) { + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, + cfg_word); + AdvWriteByteLram(iop_base, + ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, + adv_dvc->max_dvc_qng); + } + } + + if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + adv_dvc->max_dvc_qng); + } else { + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } +} + +/* + * Set the number of commands to queue per device for the + * specified host adapter. + */ +static int advansys_slave_configure(struct scsi_device *sdev) +{ + asc_board_t *boardp = ASC_BOARDP(sdev->host); + boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; + + /* + * Save a pointer to the sdev and set its initial/maximum + * queue depth. Only save the pointer for a lun0 dev though. + */ + if (sdev->lun == 0) + boardp->device[sdev->id] = sdev; + + if (ASC_NARROW_BOARD(boardp)) + advansys_narrow_slave_configure(sdev, + &boardp->dvc_var.asc_dvc_var); + else + advansys_wide_slave_configure(sdev, + &boardp->dvc_var.adv_dvc_var); + + return 0; +} + +/* + * Build a request structure for the Asc Library (Narrow Board). + * + * The global structures 'asc_scsi_q' and 'asc_sg_head' are + * used to build the request. + * + * If an error occurs, then return ASC_ERROR. + */ +static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +{ + /* + * Mutually exclusive access is required to 'asc_scsi_q' and + * 'asc_sg_head' until after the request is started. + */ + memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); + + /* + * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. + */ + asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); + + /* + * Build the ASC_SCSI_Q request. + */ + asc_scsi_q.cdbptr = &scp->cmnd[0]; + asc_scsi_q.q2.cdb_len = scp->cmd_len; + asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); + asc_scsi_q.q1.target_lun = scp->device->lun; + asc_scsi_q.q2.target_ix = + ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); + asc_scsi_q.q1.sense_addr = + cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); + + /* + * If there are any outstanding requests for the current target, + * then every 255th request send an ORDERED request. This heuristic + * tries to retain the benefit of request sorting while preventing + * request starvation. 255 is the max number of tags or pending commands + * a device may have outstanding. + * + * The request count is incremented below for every successfully + * started request. + * + */ + if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && + (boardp->reqcnt[scp->device->id] % 255) == 0) { + asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; + } else { + asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; + } + + /* + * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + ASC_STATS(scp->device->host, cont_cnt); + scp->SCp.dma_handle = scp->request_bufflen ? + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction) : 0; + asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); + asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + asc_scsi_q.q1.sg_queue_cnt = 0; + asc_scsi_q.sg_head = NULL; + } else { + /* + * CDB scatter-gather request list. + */ + int sgcnt; + int use_sg; + struct scatterlist *slp; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > scp->device->host->sg_tablesize) { + ASC_PRINT3("asc_build_req: board %d: use_sg %d > " + "sg_tablesize %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + return ASC_ERROR; + } + + ASC_STATS(scp->device->host, sg_cnt); + + /* + * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q + * structure to point to it. + */ + memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + + asc_scsi_q.q1.cntl |= QC_SG_HEAD; + asc_scsi_q.sg_head = &asc_sg_head; + asc_scsi_q.q1.data_cnt = 0; + asc_scsi_q.q1.data_addr = 0; + /* This is a byte value, otherwise it would need to be swapped. */ + asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; + ASC_STATS_ADD(scp->device->host, sg_elem, + asc_sg_head.entry_cnt); + + /* + * Convert scatter-gather list into ASC_SG_HEAD list. + */ + for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + asc_sg_head.sg_list[sgcnt].addr = + cpu_to_le32(sg_dma_address(slp)); + asc_sg_head.sg_list[sgcnt].bytes = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + } + } + + ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + return ASC_NOERROR; +} + +/* + * Build scatter-gather list for Adv Library (Wide Board). + * + * Additional ADV_SG_BLOCK structures will need to be allocated + * if the total number of scatter-gather elements exceeds + * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are + * assumed to be physically contiguous. + * + * Return: + * ADV_SUCCESS(1) - SG List successfully created + * ADV_ERROR(-1) - SG List creation failed + */ +static int +adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, + int use_sg) +{ + adv_sgblk_t *sgblkp; + ADV_SCSI_REQ_Q *scsiqp; + struct scatterlist *slp; + int sg_elem_cnt; + ADV_SG_BLOCK *sg_block, *prev_sg_block; + ADV_PADDR sg_block_paddr; + int i; + + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + slp = (struct scatterlist *)scp->request_buffer; + sg_elem_cnt = use_sg; + prev_sg_block = NULL; + reqp->sgblkp = NULL; + + for (;;) { + /* + * Allocate a 'adv_sgblk_t' structure from the board free + * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK + * (15) scatter-gather elements. + */ + if ((sgblkp = boardp->adv_sgblkp) == NULL) { + ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); + ASC_STATS(scp->device->host, adv_build_nosg); + + /* + * Allocation failed. Free 'adv_sgblk_t' structures + * already allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + return ASC_BUSY; + } + + /* Complete 'adv_sgblk_t' board allocation. */ + boardp->adv_sgblkp = sgblkp->next_sgblkp; + sgblkp->next_sgblkp = NULL; + + /* + * Get 8 byte aligned virtual and physical addresses + * for the allocated ADV_SG_BLOCK structure. + */ + sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); + sg_block_paddr = virt_to_bus(sg_block); + + /* + * Check if this is the first 'adv_sgblk_t' for the + * request. + */ + if (reqp->sgblkp == NULL) { + /* Request's first scatter-gather block. */ + reqp->sgblkp = sgblkp; + + /* + * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical + * address pointers. + */ + scsiqp->sg_list_ptr = sg_block; + scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); + } else { + /* Request's second or later scatter-gather block. */ + sgblkp->next_sgblkp = reqp->sgblkp; + reqp->sgblkp = sgblkp; + + /* + * Point the previous ADV_SG_BLOCK structure to + * the newly allocated ADV_SG_BLOCK structure. + */ + prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); + } + + for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { + sg_block->sg_list[i].sg_addr = + cpu_to_le32(sg_dma_address(slp)); + sg_block->sg_list[i].sg_count = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + + if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ + sg_block->sg_cnt = i + 1; + sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ + return ADV_SUCCESS; + } + slp++; + } + sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; + prev_sg_block = sg_block; + } +} + +/* + * Build a request structure for the Adv Library (Wide Board). + * + * If an adv_req_t can not be allocated to issue the request, + * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the + * microcode for DMA addresses or math operations are byte swapped + * to little-endian order. + */ +static int +adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, + ADV_SCSI_REQ_Q **adv_scsiqpp) +{ + adv_req_t *reqp; + ADV_SCSI_REQ_Q *scsiqp; + int i; + int ret; + + /* + * Allocate an adv_req_t structure from the board to execute + * the command. + */ + if (boardp->adv_reqp == NULL) { + ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); + ASC_STATS(scp->device->host, adv_build_noreq); + return ASC_BUSY; + } else { + reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp->next_reqp; + reqp->next_reqp = NULL; + } + + /* + * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. + */ + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + + /* + * Initialize the structure. + */ + scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; + + /* + * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. + */ + scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); + + /* + * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. + */ + reqp->cmndp = scp; + + /* + * Build the ADV_SCSI_REQ_Q request. + */ + + /* Set CDB length and copy it to the request structure. */ + scsiqp->cdb_len = scp->cmd_len; + /* Copy first 12 CDB bytes to cdb[]. */ + for (i = 0; i < scp->cmd_len && i < 12; i++) { + scsiqp->cdb[i] = scp->cmnd[i]; + } + /* Copy last 4 CDB bytes, if present, to cdb16[]. */ + for (; i < scp->cmd_len; i++) { + scsiqp->cdb16[i - 12] = scp->cmnd[i]; + } + + scsiqp->target_id = scp->device->id; + scsiqp->target_lun = scp->device->lun; + + scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + scsiqp->sense_len = sizeof(scp->sense_buffer); + + /* + * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + scsiqp->vdata_addr = scp->request_buffer; + scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + reqp->sgblkp = NULL; + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + if (scp->request_bufflen) { + scsiqp->vdata_addr = scp->request_buffer; + scp->SCp.dma_handle = + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction); + } else { + scsiqp->vdata_addr = NULL; + scp->SCp.dma_handle = 0; + } + scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + scsiqp->sg_list_ptr = NULL; + scsiqp->sg_real_addr = 0; + ASC_STATS(scp->device->host, cont_cnt); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + } else { + /* + * CDB scatter-gather request list. + */ + struct scatterlist *slp; + int use_sg; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > ADV_MAX_SG_LIST) { + ASC_PRINT3("adv_build_req: board %d: use_sg %d > " + "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + + /* + * Free the 'adv_req_t' structure by adding it back + * to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ASC_ERROR; + } + + ret = adv_get_sglist(boardp, reqp, scp, use_sg); + if (ret != ADV_SUCCESS) { + /* + * Free the adv_req_t structure by adding it back to + * the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ret; + } + + ASC_STATS(scp->device->host, sg_cnt); + ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); + } + + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + *adv_scsiqpp = scsiqp; + + return ASC_NOERROR; +} + +static int AscSgListToQueue(int sg_list) +{ + int n_sg_list_qs; + + n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); + if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) + n_sg_list_qs++; + return n_sg_list_qs + 1; +} + +static uint +AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) +{ + uint cur_used_qs; + uint cur_free_qs; + ASC_SCSI_BIT_ID_TYPE target_id; + uchar tid_no; + + target_id = ASC_TIX_TO_TARGET_ID(target_ix); + tid_no = ASC_TIX_TO_TID(target_ix); + if ((asc_dvc->unit_not_ready & target_id) || + (asc_dvc->queue_full_or_busy & target_id)) { + return 0; + } + if (n_qs == 1) { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; + } else { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) ASC_MIN_FREE_Q; + } + if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { + cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; + if (asc_dvc->cur_dvc_qng[tid_no] >= + asc_dvc->max_dvc_qng[tid_no]) { + return 0; + } + return cur_free_qs; + } + if (n_qs > 1) { + if ((n_qs > asc_dvc->last_q_shortage) + && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { + asc_dvc->last_q_shortage = n_qs; + } + } + return 0; +} + +static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) +{ + ushort q_addr; + uchar next_qp; + uchar q_status; + + q_addr = ASC_QNO_TO_QADDR(free_q_head); + q_status = (uchar)AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_STATUS)); + next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); + if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) + return next_qp; + return ASC_QLINK_END; +} + +static uchar +AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) +{ + uchar i; + + for (i = 0; i < n_free_q; i++) { + free_q_head = AscAllocFreeQueue(iop_base, free_q_head); + if (free_q_head == ASC_QLINK_END) + break; + } + return free_q_head; +} + +/* + * void + * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Output an ASC_SCSI_Q structure to the chip + */ +static void +DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) +{ + int i; + + ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 4 || i == 20) { + continue; + } + outpw(iop_base + IOP_RAM_DATA, + ((ushort)outbuf[i + 1] << 8) | outbuf[i]); + } +} + +static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + ushort q_addr; + uchar tid_no; + uchar sdtr_data; + uchar syn_period_ix; + uchar syn_offset; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && + ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { + tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + syn_period_ix = + (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); + syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; + AscMsgOutSDTR(asc_dvc, + asc_dvc->sdtr_period_tbl[syn_period_ix], + syn_offset); + scsiq->q1.cntl |= QC_MSG_OUT; + } + q_addr = ASC_QNO_TO_QADDR(q_no); + if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + } + scsiq->q1.status = QS_FREE; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_CDB_BEG, + (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); + + DvcPutScsiQ(iop_base, + q_addr + ASC_SCSIQ_CPY_BEG, + (uchar *)&scsiq->q1.cntl, + ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); + AscWriteLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), + (ushort)(((ushort)scsiq->q1. + q_no << 8) | (ushort)QS_READY)); + return 1; +} + +static int +AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + int sta; + int i; + ASC_SG_HEAD *sg_head; + ASC_SG_LIST_Q scsi_sg_q; + ASC_DCNT saved_data_addr; + ASC_DCNT saved_data_cnt; + PortAddr iop_base; + ushort sg_list_dwords; + ushort sg_index; + ushort sg_entry_cnt; + ushort q_addr; + uchar next_qp; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + saved_data_addr = scsiq->q1.data_addr; + saved_data_cnt = scsiq->q1.data_cnt; + scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; +#if CC_VERY_LONG_SG_LIST + /* + * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST + * then not all SG elements will fit in the allocated queues. + * The rest of the SG elements will be copied when the RISC + * completes the SG elements that fit and halts. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. ASC_MAX_SG_LIST is + * already inflated by 1 to account for this. For example it + * may be 50 which is 1 + 7 queues * 7 SG elements. + */ + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that will + * need to be handled from a_isr.c. + */ + scsiq->remain_sg_entry_cnt = + sg_head->entry_cnt - ASC_MAX_SG_LIST; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. + */ + sg_entry_cnt = sg_head->entry_cnt - 1; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt != 0) { + scsiq->q1.cntl |= QC_SG_HEAD; + q_addr = ASC_QNO_TO_QADDR(q_no); + sg_index = 1; + scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + if (i == 0) { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q; + } else { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } + } else { +#if CC_VERY_LONG_SG_LIST + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + scsi_sg_q.cntl |= QCSG_SG_XFER_END; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + sg_list_dwords = sg_entry_cnt << 1; + if (i == 0) { + scsi_sg_q.sg_list_cnt = sg_entry_cnt; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt; + } else { + scsi_sg_q.sg_list_cnt = + sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt - 1; + } + sg_entry_cnt = 0; + } + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + scsi_sg_q.q_no = next_qp; + q_addr = ASC_QNO_TO_QADDR(next_qp); + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[sg_index], + sg_list_dwords); + sg_index += ASC_SG_LIST_PER_Q; + scsiq->next_sg_index = sg_index; + } + } else { + scsiq->q1.cntl &= ~QC_SG_HEAD; + } + sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); + scsiq->q1.data_addr = saved_data_addr; + scsiq->q1.data_cnt = saved_data_cnt; + return (sta); +} + +static int +AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) +{ + PortAddr iop_base; + uchar free_q_head; + uchar next_qp; + uchar tid_no; + uchar target_ix; + int sta; + + iop_base = asc_dvc->iop_base; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + sta = 0; + free_q_head = (uchar)AscGetVarFreeQHead(iop_base); + if (n_q_required > 1) { + next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, + (uchar)n_q_required); + if (next_qp != ASC_QLINK_END) { + asc_dvc->last_q_shortage = 0; + scsiq->sg_head->queue_cnt = n_q_required - 1; + scsiq->q1.q_no = free_q_head; + sta = AscPutReadySgListQueue(asc_dvc, scsiq, + free_q_head); + } + } else if (n_q_required == 1) { + next_qp = AscAllocFreeQueue(iop_base, free_q_head); + if (next_qp != ASC_QLINK_END) { + scsiq->q1.q_no = free_q_head; + sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); + } + } + if (sta == 1) { + AscPutVarFreeQHead(iop_base, next_qp); + asc_dvc->cur_total_qng += n_q_required; + asc_dvc->cur_dvc_qng[tid_no]++; + } + return sta; +} + +#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 +static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { + INQUIRY, + REQUEST_SENSE, + READ_CAPACITY, + READ_TOC, + MODE_SELECT, + MODE_SENSE, + MODE_SELECT_10, + MODE_SENSE_10, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF +}; + +static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) +{ + PortAddr iop_base; + int sta; + int n_q_required; + int disable_syn_offset_one_fix; + int i; + ASC_PADDR addr; + ushort sg_entry_cnt = 0; + ushort sg_entry_cnt_minus_one = 0; + uchar target_ix; + uchar tid_no; + uchar sdtr_data; + uchar extra_bytes; + uchar scsi_cmd; + uchar disable_cmd; + ASC_SG_HEAD *sg_head; + ASC_DCNT data_cnt; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + if (asc_dvc->err_code != 0) + return (ERR); + scsiq->q1.q_no = 0; + if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { + scsiq->q1.extra_bytes = 0; + } + sta = 0; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + n_q_required = 1; + if (scsiq->cdbptr[0] == REQUEST_SENSE) { + if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { + asc_dvc->sdtr_done &= ~scsiq->q1.target_id; + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); + } + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); + return (ERR); + } + asc_dvc->in_critical_cnt++; + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#if !CC_VERY_LONG_SG_LIST + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#endif /* !CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt == 1) { + scsiq->q1.data_addr = + (ADV_PADDR)sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = + (ADV_DCNT)sg_head->sg_list[0].bytes; + scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); + } + sg_entry_cnt_minus_one = sg_entry_cnt - 1; + } + scsi_cmd = scsiq->cdbptr[0]; + disable_syn_offset_one_fix = FALSE; + if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && + !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { + if (scsiq->q1.cntl & QC_SG_HEAD) { + data_cnt = 0; + for (i = 0; i < sg_entry_cnt; i++) { + data_cnt += + (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. + bytes); + } + } else { + data_cnt = le32_to_cpu(scsiq->q1.data_cnt); + } + if (data_cnt != 0UL) { + if (data_cnt < 512UL) { + disable_syn_offset_one_fix = TRUE; + } else { + for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; + i++) { + disable_cmd = + _syn_offset_one_disable_cmd[i]; + if (disable_cmd == 0xFF) { + break; + } + if (scsi_cmd == disable_cmd) { + disable_syn_offset_one_fix = + TRUE; + break; + } + } + } + } + } + if (disable_syn_offset_one_fix) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | + ASC_TAG_FLAG_DISABLE_DISCONNECT); + } else { + scsiq->q2.tag_code &= 0x27; + } + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + (ADV_PADDR)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + addr) + + (ADV_DCNT)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + scsiq->q1.extra_bytes = + extra_bytes; + data_cnt = + le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + data_cnt -= + (ASC_DCNT) extra_bytes; + sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes = + cpu_to_le32(data_cnt); + } + } + } + } + sg_head->entry_to_copy = sg_head->entry_cnt; +#if CC_VERY_LONG_SG_LIST + /* + * Set the sg_entry_cnt to the maximum possible. The rest of + * the SG elements will be copied when the RISC completes the + * SG elements that fit and halts. + */ + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + sg_entry_cnt = ASC_MAX_SG_LIST; + } +#endif /* CC_VERY_LONG_SG_LIST */ + n_q_required = AscSgListToQueue(sg_entry_cnt); + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= + (uint) n_q_required) + || ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = + AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } else { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + le32_to_cpu(scsiq->q1.data_addr) + + le32_to_cpu(scsiq->q1.data_cnt); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + data_cnt = + le32_to_cpu(scsiq->q1. + data_cnt); + if (((ushort)data_cnt & 0x01FF) + == 0) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + data_cnt -= (ASC_DCNT) + extra_bytes; + scsiq->q1.data_cnt = + cpu_to_le32 + (data_cnt); + scsiq->q1.extra_bytes = + extra_bytes; + } + } + } + } + } + n_q_required = 1; + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || + ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } + asc_dvc->in_critical_cnt--; + return (sta); +} + +/* + * AdvExeScsiQueue() - Send a request to the RISC microcode program. + * + * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, + * add the carrier to the ICQ (Initiator Command Queue), and tickle the + * RISC to notify it a new command is ready to be executed. + * + * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be + * set to SCSI_MAX_RETRY. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode + * for DMA addresses or math operations are byte swapped to little-endian + * order. + * + * Return: + * ADV_SUCCESS(1) - The request was successfully queued. + * ADV_BUSY(0) - Resource unavailable; Retry again after pending + * request completes. + * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure + * host IC error. + */ +static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) +{ + AdvPortAddr iop_base; + ADV_DCNT req_size; + ADV_PADDR req_paddr; + ADV_CARR_T *new_carrp; + + /* + * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + */ + if (scsiq->target_id > ADV_MAX_TID) { + scsiq->host_status = QHSTA_M_INVALID_DEVICE; + scsiq->done_status = QD_WITH_ERROR; + return ADV_ERROR; + } + + iop_base = asc_dvc->iop_base; + + /* + * Allocate a carrier ensuring at least one carrier always + * remains on the freelist and initialize fields. + */ + if ((new_carrp = asc_dvc->carr_freelist) == NULL) { + return ADV_BUSY; + } + asc_dvc->carr_freelist = (ADV_CARR_T *) + ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); + asc_dvc->carr_pending_cnt++; + + /* + * Set the carrier to be a stopper by setting 'next_vpa' + * to the stopper value. The current stopper will be changed + * below to point to the new stopper. + */ + new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); + + /* + * Clear the ADV_SCSI_REQ_Q done flag. + */ + scsiq->a_flag &= ~ADV_SCSIQ_DONE; + + req_size = sizeof(ADV_SCSI_REQ_Q); + req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, + (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); + + BUG_ON(req_paddr & 31); + BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); + + /* Wait for assertion before making little-endian */ + req_paddr = cpu_to_le32(req_paddr); + + /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ + scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); + scsiq->scsiq_rptr = req_paddr; + + scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); + /* + * Every ADV_CARR_T.carr_pa is byte swapped to little-endian + * order during initialization. + */ + scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; + + /* + * Use the current stopper to send the ADV_SCSI_REQ_Q command to + * the microcode. The newly allocated stopper will become the new + * stopper. + */ + asc_dvc->icq_sp->areq_vpa = req_paddr; + + /* + * Set the 'next_vpa' pointer for the old stopper to be the + * physical address of the new stopper. The RISC can only + * follow physical addresses. + */ + asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; + + /* + * Set the host adapter stopper pointer to point to the new carrier. + */ + asc_dvc->icq_sp = new_carrp; + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + /* + * Tickle the RISC to tell it to read its Command Queue Head pointer. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_a' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* + * Notify the RISC a carrier is ready by writing the physical + * address of the new carrier stopper to the COMMA register. + */ + AdvWriteDWordRegister(iop_base, IOPDW_COMMA, + le32_to_cpu(new_carrp->carr_pa)); + } + + return ADV_SUCCESS; +} + +/* + * Execute a single 'Scsi_Cmnd'. + * + * The function 'done' is called when the request has been completed. + * + * Scsi_Cmnd: + * + * host - board controlling device + * device - device to send command + * target - target of device + * lun - lun of device + * cmd_len - length of SCSI CDB + * cmnd - buffer for SCSI 8, 10, or 12 byte CDB + * use_sg - if non-zero indicates scatter-gather request with use_sg elements + * + * if (use_sg == 0) { + * request_buffer - buffer address for request + * request_bufflen - length of request buffer + * } else { + * request_buffer - pointer to scatterlist structure + * } + * + * sense_buffer - sense command buffer + * + * result (4 bytes of an int): + * Byte Meaning + * 0 SCSI Status Byte Code + * 1 SCSI One Byte Message Code + * 2 Host Error Code + * 3 Mid-Level Error Code + * + * host driver fields: + * SCp - Scsi_Pointer used for command processing status + * scsi_done - used to save caller's done function + * host_scribble - used for pointer to another struct scsi_cmnd + * + * If this function returns ASC_NOERROR the request will be completed + * from the interrupt handler. + * + * If this function returns ASC_ERROR the host error code has been set, + * and the called must call asc_scsi_done. + * + * If ASC_BUSY is returned the request will be returned to the midlayer + * and re-tried later. + */ +static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +{ + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ADV_SCSI_REQ_Q *adv_scsiqp; + struct scsi_device *device; + int ret; + + ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", + (ulong)scp, (ulong)scp->scsi_done); + + boardp = ASC_BOARDP(scp->device->host); + device = boardp->device[scp->device->id]; + + if (ASC_NARROW_BOARD(boardp)) { + /* + * Build and execute Narrow Board request. + */ + + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + + /* + * Build Asc Library request structure using the + * global structures 'asc_scsi_req' and 'asc_sg_head'. + * + * If an error is returned, then the request has been + * queued on the board done queue. It will be completed + * by the caller. + * + * asc_build_req() can not return ASC_BUSY. + */ + if (asc_build_req(boardp, scp) == ASC_ERROR) { + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } else { + /* + * Build and execute Wide Board request. + */ + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + + /* + * Build and get a pointer to an Adv Library request structure. + * + * If the request is successfully built then send it below, + * otherwise return with an error. + */ + switch (adv_build_req(boardp, scp, &adv_scsiqp)) { + case ASC_NOERROR: + ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_BUSY\n"); + /* + * The asc_stats fields 'adv_build_noreq' and + * 'adv_build_nosg' count wide board busy conditions. + * They are updated in adv_build_req and + * adv_get_sglist, respectively. + */ + return ASC_BUSY; + case ASC_ERROR: + default: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_ERROR\n"); + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } + + ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); + return ret; +} + +/* + * advansys_queuecommand() - interrupt-driven I/O entrypoint. + * + * This function always returns 0. Command return status is saved + * in the 'scp' result field. + */ +static int +advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) +{ + struct Scsi_Host *shost = scp->device->host; + asc_board_t *boardp = ASC_BOARDP(shost); + unsigned long flags; + int asc_res, result = 0; + + ASC_STATS(shost, queuecommand); + scp->scsi_done = done; + + /* + * host_lock taken by mid-level prior to call, but need + * to protect against own ISR + */ + spin_lock_irqsave(&boardp->lock, flags); + asc_res = asc_execute_scsi_cmnd(scp); + spin_unlock_irqrestore(&boardp->lock, flags); + + switch (asc_res) { + case ASC_NOERROR: + break; + case ASC_BUSY: + result = SCSI_MLQUEUE_HOST_BUSY; + break; + case ASC_ERROR: + default: + asc_scsi_done(scp); + break; + } + + return result; +} + +static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) +{ + PortAddr eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) (ASC_EISA_CFG_IOP_MASK); + return inpw(eisa_cfg_iop); +} + +/* + * Return the BIOS address of the adapter at the specified + * I/O port and with the specified bus type. + */ +static unsigned short __devinit +AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) +{ + unsigned short cfg_lsw; + unsigned short bios_addr; + + /* + * The PCI BIOS is re-located by the motherboard BIOS. Because + * of this the driver can not determine where a PCI BIOS is + * loaded and executes. + */ + if (bus_type & ASC_IS_PCI) + return 0; + + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + cfg_lsw &= 0x000F; + bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; + return bios_addr; + } + + cfg_lsw = AscGetChipCfgLsw(iop_base); + + /* + * ISA PnP uses the top bit as the 32K BIOS flag + */ + if (bus_type == ASC_IS_ISAPNP) + cfg_lsw &= 0x7FFF; + bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; + return bios_addr; +} + +static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +{ + ushort cfg_lsw; + + if (AscGetChipScsiID(iop_base) == new_host_id) { + return (new_host_id); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + cfg_lsw &= 0xF8FF; + cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipScsiID(iop_base)); +} + +static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +{ + unsigned char sc; + + AscSetBank(iop_base, 1); + sc = inp(iop_base + IOP_REG_SC); + AscSetBank(iop_base, 0); + return sc; +} + +static unsigned char __devinit +AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) +{ + if (bus_type & ASC_IS_EISA) { + PortAddr eisa_iop; + unsigned char revision; + eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) ASC_EISA_REV_IOP_MASK; + revision = inp(eisa_iop); + return ASC_CHIP_MIN_VER_EISA - 1 + revision; + } + return AscGetChipVerNo(iop_base); +} + +static void __devinit AscToggleIRQAct(PortAddr iop_base) +{ + AscSetChipStatus(iop_base, CIW_IRQ_ACT); + AscSetChipStatus(iop_base, 0); + return; +} + +static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) +{ + ushort cfg_lsw; + uchar chip_irq; + + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); + if ((chip_irq == 13) || (chip_irq > 15)) { + return (0); + } + return (chip_irq); + } + if ((bus_type & ASC_IS_VL) != 0) { + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); + if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { + return (0); + } + return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); + if (chip_irq == 3) + chip_irq += (uchar)2; + return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); +} + +static uchar __devinit +AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) +{ + ushort cfg_lsw; + + if ((bus_type & ASC_IS_VL) != 0) { + if (irq_no != 0) { + if ((irq_no < ASC_MIN_IRQ_NO) + || (irq_no > ASC_MAX_IRQ_NO)) { + irq_no = 0; + } else { + irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); + } + } + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); + cfg_lsw |= (ushort)0x0010; + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); + cfg_lsw |= (ushort)((irq_no & 0x07) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + return (AscGetChipIRQ(iop_base, bus_type)); + } + if ((bus_type & (ASC_IS_ISA)) != 0) { + if (irq_no == 15) + irq_no -= (uchar)2; + irq_no -= (uchar)ASC_MIN_IRQ_NO; + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); + cfg_lsw |= (ushort)((irq_no & 0x03) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipIRQ(iop_base, bus_type)); + } + return (0); +} + +#ifdef CONFIG_ISA +static void __devinit AscEnableIsaDma(uchar dma_channel) +{ + if (dma_channel < 4) { + outp(0x000B, (ushort)(0xC0 | dma_channel)); + outp(0x000A, dma_channel); + } else if (dma_channel < 8) { + outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); + outp(0x00D4, (ushort)(dma_channel - 4)); + } + return; +} +#endif /* CONFIG_ISA */ + +static int AscStopQueueExe(PortAddr iop_base) +{ + int count = 0; + + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_REQ_RISC_STOP); + do { + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & + ASC_STOP_ACK_RISC_STOP) { + return (1); + } + mdelay(100); + } while (count++ < 20); + } + return (0); +} + +static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) +{ + if (bus_type & ASC_IS_ISA) + return ASC_MAX_ISA_DMA_COUNT; + else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) + return ASC_MAX_VL_DMA_COUNT; + return ASC_MAX_PCI_DMA_COUNT; +} + +#ifdef CONFIG_ISA +static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) +{ + ushort channel; + + channel = AscGetChipCfgLsw(iop_base) & 0x0003; + if (channel == 0x03) + return (0); + else if (channel == 0x00) + return (7); + return (channel + 4); +} + +static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) +{ + ushort cfg_lsw; + uchar value; + + if ((dma_channel >= 5) && (dma_channel <= 7)) { + if (dma_channel == 7) + value = 0x00; + else + value = dma_channel - 4; + cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; + cfg_lsw |= value; + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetIsaDmaChannel(iop_base)); + } + return 0; +} + +static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) +{ + uchar speed_value; + + AscSetBank(iop_base, 1); + speed_value = AscReadChipDmaSpeed(iop_base); + speed_value &= 0x07; + AscSetBank(iop_base, 0); + return speed_value; +} + +static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) +{ + speed_value &= 0x07; + AscSetBank(iop_base, 1); + AscWriteChipDmaSpeed(iop_base, speed_value); + AscSetBank(iop_base, 0); + return AscGetIsaDmaSpeed(iop_base); +} +#endif /* CONFIG_ISA */ + +static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + PortAddr iop_base; + ushort warn_code; + uchar chip_version; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + asc_dvc->err_code = 0; + if ((asc_dvc->bus_type & + (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { + asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; + } + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, 0); + asc_dvc->bug_fix_cntl = 0; + asc_dvc->pci_fix_asyn_xfer = 0; + asc_dvc->pci_fix_asyn_xfer_always = 0; + /* asc_dvc->init_state initalized in AscInitGetConfig(). */ + asc_dvc->sdtr_done = 0; + asc_dvc->cur_total_qng = 0; + asc_dvc->is_in_int = 0; + asc_dvc->in_critical_cnt = 0; + asc_dvc->last_q_shortage = 0; + asc_dvc->use_tagged_qng = 0; + asc_dvc->no_scam = 0; + asc_dvc->unit_not_ready = 0; + asc_dvc->queue_full_or_busy = 0; + asc_dvc->redo_scam = 0; + asc_dvc->res2 = 0; + asc_dvc->host_init_sdtr_index = 0; + asc_dvc->cfg->can_tagged_qng = 0; + asc_dvc->cfg->cmd_qng_enabled = 0; + asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; + asc_dvc->init_sdtr = 0; + asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; + asc_dvc->scsi_reset_wait = 3; + asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); + asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; + asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; + asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | + ASC_LIB_VERSION_MINOR; + chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); + asc_dvc->cfg->chip_version = chip_version; + asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; + asc_dvc->max_sdtr_index = 7; + if ((asc_dvc->bus_type & ASC_IS_PCI) && + (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { + asc_dvc->bus_type = ASC_IS_PCI_ULTRA; + asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; + asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; + asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; + asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; + asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; + asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; + asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; + asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; + asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; + asc_dvc->max_sdtr_index = 15; + if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | + SEC_ENABLE_FILTER)); + } + } + if (asc_dvc->bus_type == ASC_IS_PCI) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } + + asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; +#ifdef CONFIG_ISA + if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { + if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { + AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); + asc_dvc->bus_type = ASC_IS_ISAPNP; + } + asc_dvc->cfg->isa_dma_channel = + (uchar)AscGetIsaDmaChannel(iop_base); + } +#endif /* CONFIG_ISA */ + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->cur_dvc_qng[i] = 0; + asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; + asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; + asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; + asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; + } + return warn_code; +} + +static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) +{ + int retry; + + for (retry = 0; retry < ASC_EEP_MAX_RETRY; retry++) { + unsigned char read_back; + AscSetChipEEPCmd(iop_base, cmd_reg); + mdelay(1); + read_back = AscGetChipEEPCmd(iop_base); + if (read_back == cmd_reg) + return 1; + } + return 0; +} + +static void __devinit AscWaitEEPRead(void) +{ + mdelay(1); +} + +static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) +{ + ushort read_wval; + uchar cmd_reg; + + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + cmd_reg = addr | ASC_EEP_CMD_READ; + AscWriteEEPCmdReg(iop_base, cmd_reg); + AscWaitEEPRead(); + read_wval = AscGetChipEEPData(iop_base); + AscWaitEEPRead(); + return read_wval; +} + +static ushort __devinit +AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + ushort wval; + ushort sum; + ushort *wbuf; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + int s_addr; + + wbuf = (ushort *)cfg_buf; + sum = 0; + /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + sum += *wbuf; + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + wval = AscReadEEPWord(iop_base, (uchar)s_addr); + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields - must unswap bytes already swapped + * by AscReadEEPWord(). + */ + *wbuf = le16_to_cpu(wval); + } else { + /* Don't swap word field at the end - cntl field. */ + *wbuf = wval; + } + sum += wval; /* Checksum treats all EEPROM data as words. */ + } + /* + * Read the checksum word which will be compared against 'sum' + * by the caller. Word field already swapped. + */ + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + return sum; +} + +static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + ushort q_addr; + ushort saved_word; + int sta; + + iop_base = asc_dvc->iop_base; + sta = 0; + q_addr = ASC_QNO_TO_QADDR(241); + saved_word = AscReadLramWord(iop_base, q_addr); + AscSetChipLramAddr(iop_base, q_addr); + AscSetChipLramData(iop_base, 0x55AA); + mdelay(10); + AscSetChipLramAddr(iop_base, q_addr); + if (AscGetChipLramData(iop_base) == 0x55AA) { + sta = 1; + AscWriteLramWord(iop_base, q_addr, saved_word); + } + return (sta); +} + +static void __devinit AscWaitEEPWrite(void) +{ + mdelay(20); + return; +} + +static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) +{ + ushort read_back; + int retry; + + retry = 0; + while (TRUE) { + AscSetChipEEPData(iop_base, data_reg); + mdelay(1); + read_back = AscGetChipEEPData(iop_base); + if (read_back == data_reg) { + return (1); + } + if (retry++ > ASC_EEP_MAX_RETRY) { + return (0); + } + } +} + +static ushort __devinit +AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) +{ + ushort read_wval; + + read_wval = AscReadEEPWord(iop_base, addr); + if (read_wval != word_val) { + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); + AscWaitEEPRead(); + AscWriteEEPDataReg(iop_base, word_val); + AscWaitEEPRead(); + AscWriteEEPCmdReg(iop_base, + (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); + AscWaitEEPWrite(); + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + return (AscReadEEPWord(iop_base, addr)); + } + return (read_wval); +} + +static int __devinit +AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int n_error; + ushort *wbuf; + ushort word; + ushort sum; + int s_addr; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + + wbuf = (ushort *)cfg_buf; + n_error = 0; + sum = 0; + /* Write two config words; AscWriteEEPWord() will swap bytes. */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + sum += *wbuf; + if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * This is a char field. Swap char fields before they are + * swapped again by AscWriteEEPWord(). + */ + word = cpu_to_le16(*wbuf); + if (word != + AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { + n_error++; + } + } else { + /* Don't swap word field at the end - cntl field. */ + if (*wbuf != + AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + sum += *wbuf; /* Checksum calculated from word values. */ + } + /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ + *wbuf = sum; + if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { + n_error++; + } + + /* Read EEPROM back again. */ + wbuf = (ushort *)cfg_buf; + /* + * Read two config words; Byte-swapping done by AscReadEEPWord(). + */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields. Must unswap bytes already swapped + * by AscReadEEPWord(). + */ + word = + le16_to_cpu(AscReadEEPWord + (iop_base, (uchar)s_addr)); + } else { + /* Don't swap word field at the end - cntl field. */ + word = AscReadEEPWord(iop_base, (uchar)s_addr); + } + if (*wbuf != word) { + n_error++; + } + } + /* Read checksum; Byte swapping not needed. */ + if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { + n_error++; + } + return n_error; +} + +static int __devinit +AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int retry; + int n_error; + + retry = 0; + while (TRUE) { + if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, + bus_type)) == 0) { + break; + } + if (++retry > ASC_EEP_MAX_RETRY) { + break; + } + } + return n_error; +} + +static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) +{ + ASCEEP_CONFIG eep_config_buf; + ASCEEP_CONFIG *eep_config; + PortAddr iop_base; + ushort chksum; + ushort warn_code; + ushort cfg_msw, cfg_lsw; + int i; + int write_eep = 0; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); + AscStopQueueExe(iop_base); + if ((AscStopChip(iop_base) == FALSE) || + (AscGetChipScsiCtrl(iop_base) != 0)) { + asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + if (AscIsChipHalted(iop_base) == FALSE) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return (warn_code); + } + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return (warn_code); + } + eep_config = (ASCEEP_CONFIG *)&eep_config_buf; + cfg_msw = AscGetChipCfgMsw(iop_base); + cfg_lsw = AscGetChipCfgLsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); + ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); + if (chksum == 0) { + chksum = 0xaa55; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + if (asc_dvc->cfg->chip_version == 3) { + if (eep_config->cfg_lsw != cfg_lsw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_lsw = + AscGetChipCfgLsw(iop_base); + } + if (eep_config->cfg_msw != cfg_msw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_msw = + AscGetChipCfgMsw(iop_base); + } + } + } + eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; + ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", + eep_config->chksum); + if (chksum != eep_config->chksum) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == + ASC_CHIP_VER_PCI_ULTRA_3050) { + ASC_DBG(1, + "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); + eep_config->init_sdtr = 0xFF; + eep_config->disc_enable = 0xFF; + eep_config->start_motor = 0xFF; + eep_config->use_cmd_qng = 0; + eep_config->max_total_qng = 0xF0; + eep_config->max_tag_qng = 0x20; + eep_config->cntl = 0xBFFF; + ASC_EEP_SET_CHIP_ID(eep_config, 7); + eep_config->no_scam = 0; + eep_config->adapter_info[0] = 0; + eep_config->adapter_info[1] = 0; + eep_config->adapter_info[2] = 0; + eep_config->adapter_info[3] = 0; + eep_config->adapter_info[4] = 0; + /* Indicate EEPROM-less board. */ + eep_config->adapter_info[5] = 0xBB; + } else { + ASC_PRINT + ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); + write_eep = 1; + warn_code |= ASC_WARN_EEPROM_CHKSUM; + } + } + asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; + asc_dvc->cfg->disc_enable = eep_config->disc_enable; + asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; + asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); + asc_dvc->start_motor = eep_config->start_motor; + asc_dvc->dvc_cntl = eep_config->cntl; + asc_dvc->no_scam = eep_config->no_scam; + asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; + asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; + asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; + asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; + asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; + asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; + if (!AscTestExternalLram(asc_dvc)) { + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == + ASC_IS_PCI_ULTRA)) { + eep_config->max_total_qng = + ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = + ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; + } else { + eep_config->cfg_msw |= 0x0800; + cfg_msw |= 0x0800; + AscSetChipCfgMsw(iop_base, cfg_msw); + eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; + } + } else { + } + if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; + } + if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; + } + if (eep_config->max_tag_qng > eep_config->max_total_qng) { + eep_config->max_tag_qng = eep_config->max_total_qng; + } + if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { + eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; + } + asc_dvc->max_total_qng = eep_config->max_total_qng; + if ((eep_config->use_cmd_qng & eep_config->disc_enable) != + eep_config->use_cmd_qng) { + eep_config->disc_enable = eep_config->use_cmd_qng; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { + asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); + } + ASC_EEP_SET_CHIP_ID(eep_config, + ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); + asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && + !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { + asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; + } + + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; + asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; + asc_dvc->cfg->sdtr_period_offset[i] = + (uchar)(ASC_DEF_SDTR_OFFSET | + (asc_dvc->host_init_sdtr_index << 4)); + } + eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); + if (write_eep) { + if ((i = AscSetEEPConfig(iop_base, eep_config, + asc_dvc->bus_type)) != 0) { + ASC_PRINT1 + ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", + i); + } else { + ASC_PRINT + ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); + } + } + return (warn_code); +} + +static int __devinit AscInitGetConfig(asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + unsigned short warn_code = 0; + + asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + + if (AscFindSignature(asc_dvc->iop_base)) { + warn_code |= AscInitAscDvcVar(asc_dvc); + warn_code |= AscInitFromEEP(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; + if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) + asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; + } else { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + } + + switch (warn_code) { + case 0: /* No error */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " + "w/o disconnects\n", boardp->id); + break; + default: + ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + PortAddr iop_base = asc_dvc->iop_base; + unsigned short cfg_msw; + unsigned short warn_code = 0; + + asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return asc_dvc->err_code; + } + + cfg_msw = AscGetChipCfgMsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != + asc_dvc->cfg->cmd_qng_enabled) { + asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + } + if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { + if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) + != asc_dvc->irq_no) { + asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; + } + } +#ifdef CONFIG_PCI + if (asc_dvc->bus_type & ASC_IS_PCI) { + cfg_msw &= 0xFFC0; + AscSetChipCfgMsw(iop_base, cfg_msw); + if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { + } else { + if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || + (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; + asc_dvc->bug_fix_cntl |= + ASC_BUG_FIX_ASYN_USE_SYN; + } + } + } else +#endif /* CONFIG_PCI */ + if (asc_dvc->bus_type == ASC_IS_ISAPNP) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) + == ASC_CHIP_VER_ASYN_BUG) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; + } + } + if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != + asc_dvc->cfg->chip_scsi_id) { + asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; + } +#ifdef CONFIG_ISA + if (asc_dvc->bus_type & ASC_IS_ISA) { + AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); + AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); + } +#endif /* CONFIG_ISA */ + + asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; + + switch (warn_code) { + case 0: /* No error. */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " + "disconnects\n", + boardp->id); + break; + default: + ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +/* + * EEPROM Configuration. + * + * All drivers should use this structure to set the default EEPROM + * configuration. The BIOS now uses this structure when it is built. + * Additional structure information can be found in a_condor.h where + * the structure is defined. + * + * The *_Field_IsChar structs are needed to correct for endianness. + * These values are read from the board 16 bits at a time directly + * into the structs. Because some fields are char, the values will be + * in the wrong order. The *_Field_IsChar tells when to flip the + * bytes. Data read and written to PCI memory is automatically swapped + * on big-endian platforms so char fields read as words are actually being + * unswapped on big-endian platforms. + */ +static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ + 0x0000, /* cfg_msw */ + 0xFFFF, /* disc_enable */ + 0xFFFF, /* wdtr_able */ + 0xFFFF, /* sdtr_able */ + 0xFFFF, /* start_motor */ + 0xFFFF, /* tagqng_able */ + 0xFFFF, /* bios_scan */ + 0, /* scam_tolerant */ + 7, /* adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* termination */ + 0, /* reserved1 */ + 0xFFE7, /* bios_ctrl */ + 0xFFFF, /* ultra_able */ + 0, /* reserved2 */ + ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { + 0, /* cfg_lsw */ + 0, /* cfg_msw */ + 0, /* -disc_enable */ + 0, /* wdtr_able */ + 0, /* sdtr_able */ + 0, /* start_motor */ + 0, /* tagqng_able */ + 0, /* bios_scan */ + 0, /* scam_tolerant */ + 1, /* adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* termination */ + 1, /* reserved1 */ + 0, /* bios_ctrl */ + 0, /* ultra_able */ + 0, /* reserved2 */ + 1, /* max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x4444, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x4444, /* 13 sdtr_speed2 */ + 0x4444, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x4444, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x5555, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x5555, /* 13 sdtr_speed2 */ + 0x5555, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x5555, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +#ifdef CONFIG_PCI +/* + * Wait for EEPROM command to complete + */ +static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) +{ + int eep_delay_ms; + + for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { + if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & + ASC_EEP_CMD_DONE) { + break; + } + mdelay(1); + } + if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == + 0) + BUG(); +} + +/* + * Read the EEPROM from specified location + */ +static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) +{ + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_READ | eep_word_addr); + AdvWaitEEPCmd(iop_base); + return AdvReadWordRegister(iop_base, IOPW_EE_DATA); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort addr, chksum; + ushort *charfields; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while * all of this is done. @@ -13234,834 +13757,124 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) } /* - * Read EEPROM configuration into the specified buffer. - * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * Initialize the ADV_DVC_VAR structure. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read the EEPROM from specified location - */ -static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) -{ - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_READ | eep_word_addr); - AdvWaitEEPCmd(iop_base); - return AdvReadWordRegister(iop_base, IOPW_EE_DATA); -} - -/* - * Wait for EEPROM command to complete - */ -static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) -{ - int eep_delay_ms; - - for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { - if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & - ASC_EEP_CMD_DONE) { - break; - } - mdelay(1); - } - if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == - 0) - BUG(); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort addr, chksum; - ushort *charfields; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. + * For a non-fatal error return a warning code. If there are no warnings + * then 0 is returned. */ -void __devinit -AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +static int __devinit +AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) { - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; + ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; + unsigned short warn_code = 0; + AdvPortAddr iop_base = asc_dvc->iop_base; + u16 cmd; + int status; - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } + asc_dvc->err_code = 0; /* - * Write EEPROM checksum at word 21. + * Save the state of the PCI Configuration Command Register + * "Parity Error Response Control" Bit. If the bit is clear (0), + * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore + * DMA parity errors. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; + asc_dvc->cfg->control_flag = 0; + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + if ((cmd & PCI_COMMAND_PARITY) == 0) + asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; + asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | + ADV_LIB_VERSION_MINOR; + asc_dvc->cfg->chip_version = + AdvGetChipVersion(iop_base, asc_dvc->bus_type); - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} + ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", + (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), + (ushort)ADV_CHIP_ID_BYTE); -/* - * AdvExeScsiQueue() - Send a request to the RISC microcode program. - * - * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, - * add the carrier to the ICQ (Initiator Command Queue), and tickle the - * RISC to notify it a new command is ready to be executed. - * - * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be - * set to SCSI_MAX_RETRY. - * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode - * for DMA addresses or math operations are byte swapped to little-endian - * order. - * - * Return: - * ADV_SUCCESS(1) - The request was successfully queued. - * ADV_BUSY(0) - Resource unavailable; Retry again after pending - * request completes. - * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure - * host IC error. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) -{ - AdvPortAddr iop_base; - ADV_DCNT req_size; - ADV_PADDR req_paddr; - ADV_CARR_T *new_carrp; + ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", + (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), + (ushort)ADV_CHIP_ID_WORD); /* - * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + * Reset the chip to start and allow register writes. */ - if (scsiq->target_id > ADV_MAX_TID) { - scsiq->host_status = QHSTA_M_INVALID_DEVICE; - scsiq->done_status = QD_WITH_ERROR; + if (AdvFindSignature(iop_base) == 0) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; return ADV_ERROR; - } - - iop_base = asc_dvc->iop_base; - - /* - * Allocate a carrier ensuring at least one carrier always - * remains on the freelist and initialize fields. - */ - if ((new_carrp = asc_dvc->carr_freelist) == NULL) { - return ADV_BUSY; - } - asc_dvc->carr_freelist = (ADV_CARR_T *) - ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); - asc_dvc->carr_pending_cnt++; - - /* - * Set the carrier to be a stopper by setting 'next_vpa' - * to the stopper value. The current stopper will be changed - * below to point to the new stopper. - */ - new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); - - /* - * Clear the ADV_SCSI_REQ_Q done flag. - */ - scsiq->a_flag &= ~ADV_SCSIQ_DONE; - - req_size = sizeof(ADV_SCSI_REQ_Q); - req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, - (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); - - BUG_ON(req_paddr & 31); - BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); - - /* Wait for assertion before making little-endian */ - req_paddr = cpu_to_le32(req_paddr); - - /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ - scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); - scsiq->scsiq_rptr = req_paddr; - - scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); - /* - * Every ADV_CARR_T.carr_pa is byte swapped to little-endian - * order during initialization. - */ - scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; - - /* - * Use the current stopper to send the ADV_SCSI_REQ_Q command to - * the microcode. The newly allocated stopper will become the new - * stopper. - */ - asc_dvc->icq_sp->areq_vpa = req_paddr; - - /* - * Set the 'next_vpa' pointer for the old stopper to be the - * physical address of the new stopper. The RISC can only - * follow physical addresses. - */ - asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; - - /* - * Set the host adapter stopper pointer to point to the new carrier. - */ - asc_dvc->icq_sp = new_carrp; - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + } else { /* - * Tickle the RISC to tell it to read its Command Queue Head pointer. + * The caller must set 'chip_type' to a valid setting. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_a' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_NOP); + if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && + asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && + asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { + asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; + return ADV_ERROR; } - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* - * Notify the RISC a carrier is ready by writing the physical - * address of the new carrier stopper to the COMMA register. + * Reset Chip. */ - AdvWriteDWordRegister(iop_base, IOPDW_COMMA, - le32_to_cpu(new_carrp->carr_pa)); - } - - return ADV_SUCCESS; -} - -/* - * Reset SCSI Bus and purge all outstanding requests. - * - * Return Value: - * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. - * ADV_FALSE(0) - Microcode command failed. - * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC - * may be hung which requires driver recovery. - */ -static int AdvResetSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - - /* - * Send the SCSI Bus Reset idle start idle command which asserts - * the SCSI Bus Reset signal. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); - if (status != ADV_TRUE) { - return status; - } - - /* - * Delay for the specified SCSI Bus Reset hold time. - * - * The hold time delay is done on the host because the RISC has no - * microsecond accurate timer. - */ - udelay(ASC_SCSI_RESET_HOLD_TIME_US); - - /* - * Send the SCSI Bus Reset end idle command which de-asserts - * the SCSI Bus Reset signal and purges any pending requests. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); - if (status != ADV_TRUE) { - return status; - } - - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - - return status; -} - -/* - * Reset chip and SCSI Bus. - * - * Return Value: - * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. - * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. - */ -static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - ushort wdtr_able, sdtr_able, tagqng_able; - ushort ppr_able = 0; - uchar tid, max_cmd[ADV_MAX_TID + 1]; - AdvPortAddr iop_base; - ushort bios_sig; - - iop_base = asc_dvc->iop_base; - - /* - * Save current per TID negotiated values. - */ - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); - } - - /* - * Force the AdvInitAsc3550/38C0800Driver() function to - * perform a SCSI Bus Reset by clearing the BIOS signature word. - * The initialization functions assumes a SCSI Bus Reset is not - * needed if the BIOS signature word is present. - */ - AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); - - /* - * Stop chip and reset it. - */ - AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); - - /* - * Reset Adv Library error code, if any, and try - * re-initializing the chip. - */ - asc_dvc->err_code = 0; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitAsc38C1600Driver(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitAsc38C0800Driver(asc_dvc); - } else { - status = AdvInitAsc3550Driver(asc_dvc); - } - - /* Translate initialization return value to status value. */ - if (status == 0) { - status = ADV_TRUE; - } else { - status = ADV_FALSE; - } - - /* - * Restore the BIOS signature word. - */ - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); - /* - * Restore per TID negotiated values. - */ - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitFrom38C1600EEP(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitFrom38C0800EEP(asc_dvc); + } else { + status = AdvInitFrom3550EEP(asc_dvc); + } + warn_code |= status; } - return status; -} - -/* - * Adv Library Interrupt Service Routine - * - * This function is called by a driver's interrupt service routine. - * The function disables and re-enables interrupts. - * - * When a microcode idle command is completed, the ADV_DVC_VAR - * 'idle_cmd_done' field is set to ADV_TRUE. - * - * Note: AdvISR() can be called when interrupts are disabled or even - * when there is no hardware interrupt condition present. It will - * always check for completed idle commands and microcode requests. - * This is an important feature that shouldn't be changed because it - * allows commands to be completed from polling mode loops. - * - * Return: - * ADV_TRUE(1) - interrupt was pending - * ADV_FALSE(0) - no interrupt was pending - */ -static int AdvISR(ADV_DVC_VAR *asc_dvc) -{ - AdvPortAddr iop_base; - uchar int_stat; - ushort target_bit; - ADV_CARR_T *free_carrp; - ADV_VADDR irq_next_vpa; - ADV_SCSI_REQ_Q *scsiq; - - iop_base = asc_dvc->iop_base; - - /* Reading the register clears the interrupt. */ - int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); - - if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | - ADV_INTR_STATUS_INTRC)) == 0) { - return ADV_FALSE; + if (warn_code != 0) { + ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", + boardp->id, warn_code); } - /* - * Notify the driver of an asynchronous microcode condition by - * calling the adv_async_callback function. The function - * is passed the microcode ASC_MC_INTRB_CODE byte value. - */ - if (int_stat & ADV_INTR_STATUS_INTRB) { - uchar intrb_code; - - AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && - asc_dvc->carr_pending_cnt != 0) { - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - AdvWriteByteRegister(iop_base, - IOPB_TICKLE, - ADV_TICKLE_NOP); - } - } - } - - adv_async_callback(asc_dvc, intrb_code); + if (asc_dvc->err_code) { + ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", + boardp->id, asc_dvc->err_code); } - /* - * Check if the IRQ stopper carrier contains a completed request. - */ - while (((irq_next_vpa = - le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { - /* - * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. - * The RISC will have set 'areq_vpa' to a virtual address. - * - * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr - * field to the carrier ADV_CARR_T.areq_vpa field. The conversion - * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' - * in AdvExeScsiQueue(). - */ - scsiq = (ADV_SCSI_REQ_Q *) - ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); - - /* - * Request finished with good status and the queue was not - * DMAed to host memory by the firmware. Set all status fields - * to indicate good status. - */ - if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { - scsiq->done_status = QD_NO_ERROR; - scsiq->host_status = scsiq->scsi_status = 0; - scsiq->data_cnt = 0L; - } - - /* - * Advance the stopper pointer to the next carrier - * ignoring the lower four bits. Free the previous - * stopper carrier. - */ - free_carrp = asc_dvc->irq_sp; - asc_dvc->irq_sp = (ADV_CARR_T *) - ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); - - free_carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = free_carrp; - asc_dvc->carr_pending_cnt--; - - target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); - - /* - * Clear request microcode control flag. - */ - scsiq->cntl = 0; - - /* - * Notify the driver of the completed request by passing - * the ADV_SCSI_REQ_Q pointer to its callback function. - */ - scsiq->a_flag |= ADV_SCSIQ_DONE; - adv_isr_callback(asc_dvc, scsiq); - /* - * Note: After the driver callback function is called, 'scsiq' - * can no longer be referenced. - * - * Fall through and continue processing other completed - * requests... - */ - } - return ADV_TRUE; + return asc_dvc->err_code; } +#endif -/* - * Send an idle command to the chip and wait for completion. - * - * Command completion is polled for once per microsecond. - * - * The function can be called from anywhere including an interrupt handler. - * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() - * functions to prevent reentrancy. - * - * Return Values: - * ADV_TRUE - command completed successfully - * ADV_FALSE - command failed - * ADV_ERROR - command timed out - */ -static int -AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, - ushort idle_cmd, ADV_DCNT idle_cmd_parameter) -{ - int result; - ADV_DCNT i, j; - AdvPortAddr iop_base; - - iop_base = asc_dvc->iop_base; - - /* - * Clear the idle command status which is set by the microcode - * to a non-zero value to indicate when the command is completed. - * The non-zero result is one of the IDLE_CMD_STATUS_* values - */ - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); - +static struct scsi_host_template advansys_template = { + .proc_name = DRV_NAME, +#ifdef CONFIG_PROC_FS + .proc_info = advansys_proc_info, +#endif + .name = DRV_NAME, + .info = advansys_info, + .queuecommand = advansys_queuecommand, + .eh_bus_reset_handler = advansys_reset, + .bios_param = advansys_biosparam, + .slave_configure = advansys_slave_configure, /* - * Write the idle command value after the idle command parameter - * has been written to avoid a race condition. If the order is not - * followed, the microcode may process the idle command before the - * parameters have been written to LRAM. + * Because the driver may control an ISA adapter 'unchecked_isa_dma' + * must be set. The flag will be cleared in advansys_board_found + * for non-ISA adapters. */ - AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, - cpu_to_le32(idle_cmd_parameter)); - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); - + .unchecked_isa_dma = 1, /* - * Tickle the RISC to tell it to process the idle command. + * All adapters controlled by this driver are capable of large + * scatter-gather lists. According to the mid-level SCSI documentation + * this obviates any performance gain provided by setting + * 'use_clustering'. But empirically while CPU utilization is increased + * by enabling clustering, I/O throughput increases as well. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_b' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); - } - - /* Wait for up to 100 millisecond for the idle command to timeout. */ - for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { - /* Poll once each microsecond for command completion. */ - for (j = 0; j < SCSI_US_PER_MSEC; j++) { - AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, - result); - if (result != 0) - return result; - udelay(1); - } - } - - BUG(); /* The idle command should never timeout. */ - return ADV_ERROR; -} + .use_clustering = ENABLE_CLUSTERING, +}; static int __devinit advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) |