diff -urNp -X dontdiff linux-2.6.4-applied/drivers/scsi/Makefile linux-2.6.4-work/drivers/scsi/Makefile --- linux-2.6.4-applied/drivers/scsi/Makefile 2004-03-13 15:08:31.000000000 -0300 +++ linux-2.6.4-work/drivers/scsi/Makefile 2004-03-30 09:54:40.000000000 -0300 @@ -67,7 +67,8 @@ obj-$(CONFIG_SCSI_NCR53C406A) += NCR53c4 obj-$(CONFIG_SCSI_NCR_D700) += NCR_D700.o 53c700.o obj-$(CONFIG_SCSI_NCR_Q720) += NCR_Q720_mod.o obj-$(CONFIG_SCSI_SYM53C416) += sym53c416.o -obj-$(CONFIG_SCSI_QLOGIC_FAS) += qlogicfas.o +obj-$(CONFIG_SCSI_QLOGIC_FAS) += qlogicfas408.o qlogicfas.o +obj-$(CONFIG_PCMCIA_QLOGIC) += qlogicfas408.o obj-$(CONFIG_SCSI_QLOGIC_ISP) += qlogicisp.o obj-$(CONFIG_SCSI_QLOGIC_FC) += qlogicfc.o obj-$(CONFIG_SCSI_QLOGIC_1280) += qla1280.o diff -urNp -X dontdiff linux-2.6.4-applied/drivers/scsi/qlogicfas.c linux-2.6.4-work/drivers/scsi/qlogicfas.c --- linux-2.6.4-applied/drivers/scsi/qlogicfas.c 2004-03-18 08:45:57.000000000 -0300 +++ linux-2.6.4-work/drivers/scsi/qlogicfas.c 2004-03-30 13:51:19.000000000 -0300 @@ -1,43 +1,19 @@ -/*----------------------------------------------------------------*/ /* - Qlogic linux driver - work in progress. No Warranty express or implied. - Use at your own risk. Support Tort Reform so you won't have to read all - these silly disclaimers. - - Copyright 1994, Tom Zerucha. - tz@execpc.com - - Additional Code, and much appreciated help by - Michael A. Griffith - grif@cs.ucr.edu - - Thanks to Eric Youngdale and Dave Hinds for loadable module and PCMCIA - help respectively, and for suffering through my foolishness during the - debugging process. - - Reference Qlogic FAS408 Technical Manual, 53408-510-00A, May 10, 1994 - (you can reference it, but it is incomplete and inaccurate in places) - - Version 0.46 1/30/97 - kernel 1.2.0+ - - Functions as standalone, loadable, and PCMCIA driver, the latter from - Dave Hinds' PCMCIA package. - - Cleaned up 26/10/2002 by Alan Cox as part of the 2.5 - SCSI driver cleanup and audit. This driver still needs work on the - following - - Non terminating hardware waits - - Some layering violations with its pcmcia stub - - Redistributable under terms of the GNU General Public License - - For the avoidance of doubt the "preferred form" of this code is one which - is in an open non patent encumbered format. Where cryptographic key signing - forms part of the process of creating an executable the information - including keys needed to generate an equivalently functional executable - are deemed to be part of the source code. - -*/ + * Qlogic FAS408 ISA card driver + * + * Copyright 1994, Tom Zerucha. + * tz@execpc.com + * + * Redistributable under terms of the GNU General Public License + * + * For the avoidance of doubt the "preferred form" of this code is one which + * is in an open non patent encumbered format. Where cryptographic key signing + * forms part of the process of creating an executable the information + * including keys needed to generate an equivalently functional executable + * are deemed to be part of the source code. + * + * Check qlogicfas408.c for more credits and info. + */ #include #include /* to get disk capacity */ @@ -57,428 +33,28 @@ #include "scsi.h" #include "hosts.h" -#include "qlogicfas.h" - -/*----------------------------------------------------------------*/ -int qlcfg5 = (XTALFREQ << 5); /* 15625/512 */ -int qlcfg6 = SYNCXFRPD; -int qlcfg7 = SYNCOFFST; -int qlcfg8 = (SLOWCABLE << 7) | (QL_ENABLE_PARITY << 4); -int qlcfg9 = ((XTALFREQ + 4) / 5); -int qlcfgc = (FASTCLK << 3) | (FASTSCSI << 4); - -static char qlogicfas_name[] = "qlogicfas"; - -int qlogicfas_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)); - -/*----------------------------------------------------------------*/ - -/*----------------------------------------------------------------*/ -/* local functions */ -/*----------------------------------------------------------------*/ +#include "qlogicfas408.h" -/* error recovery - reset everything */ - -static void ql_zap(qlogicfas_priv_t priv) -{ - int x; - int qbase = priv->qbase; - - x = inb(qbase + 0xd); - REG0; - outb(3, qbase + 3); /* reset SCSI */ - outb(2, qbase + 3); /* reset chip */ - if (x & 0x80) - REG1; -} - -/* - * Do a pseudo-dma tranfer +/* Set the following to 2 to use normal interrupt (active high/totempole- + * tristate), otherwise use 0 (REQUIRED FOR PCMCIA) for active low, open + * drain */ - -static int ql_pdma(qlogicfas_priv_t priv, int phase, char *request, int reqlen) -{ - int j; - int qbase = priv->qbase; - j = 0; - if (phase & 1) { /* in */ -#if QL_TURBO_PDMA - rtrc(4) - /* empty fifo in large chunks */ - if (reqlen >= 128 && (inb(qbase + 8) & 2)) { /* full */ - insl(qbase + 4, request, 32); - reqlen -= 128; - request += 128; - } - while (reqlen >= 84 && !(j & 0xc0)) /* 2/3 */ - if ((j = inb(qbase + 8)) & 4) - { - insl(qbase + 4, request, 21); - reqlen -= 84; - request += 84; - } - if (reqlen >= 44 && (inb(qbase + 8) & 8)) { /* 1/3 */ - insl(qbase + 4, request, 11); - reqlen -= 44; - request += 44; - } -#endif - /* until both empty and int (or until reclen is 0) */ - rtrc(7) - j = 0; - while (reqlen && !((j & 0x10) && (j & 0xc0))) - { - /* while bytes to receive and not empty */ - j &= 0xc0; - while (reqlen && !((j = inb(qbase + 8)) & 0x10)) - { - *request++ = inb(qbase + 4); - reqlen--; - } - if (j & 0x10) - j = inb(qbase + 8); +#define INT_TYPE 2 - } - } else { /* out */ -#if QL_TURBO_PDMA - rtrc(4) - if (reqlen >= 128 && inb(qbase + 8) & 0x10) { /* empty */ - outsl(qbase + 4, request, 32); - reqlen -= 128; - request += 128; - } - while (reqlen >= 84 && !(j & 0xc0)) /* 1/3 */ - if (!((j = inb(qbase + 8)) & 8)) { - outsl(qbase + 4, request, 21); - reqlen -= 84; - request += 84; - } - if (reqlen >= 40 && !(inb(qbase + 8) & 4)) { /* 2/3 */ - outsl(qbase + 4, request, 10); - reqlen -= 40; - request += 40; - } -#endif - /* until full and int (or until reclen is 0) */ - rtrc(7) - j = 0; - while (reqlen && !((j & 2) && (j & 0xc0))) { - /* while bytes to send and not full */ - while (reqlen && !((j = inb(qbase + 8)) & 2)) - { - outb(*request++, qbase + 4); - reqlen--; - } - if (j & 2) - j = inb(qbase + 8); - } - } - /* maybe return reqlen */ - return inb(qbase + 8) & 0xc0; -} - -/* - * Wait for interrupt flag (polled - not real hardware interrupt) - */ - -static int ql_wai(qlogicfas_priv_t priv) -{ - int k; - int qbase = priv->qbase; - unsigned long i; - - k = 0; - i = jiffies + WATCHDOG; - while (time_before(jiffies, i) && !priv->qabort && - !((k = inb(qbase + 4)) & 0xe0)) { - barrier(); - cpu_relax(); - } - if (time_after_eq(jiffies, i)) - return (DID_TIME_OUT); - if (priv->qabort) - return (priv->qabort == 1 ? DID_ABORT : DID_RESET); - if (k & 0x60) - ql_zap(priv); - if (k & 0x20) - return (DID_PARITY); - if (k & 0x40) - return (DID_ERROR); - return 0; -} - -/* - * Initiate scsi command - queueing handler - * caller must hold host lock - */ - -static void ql_icmd(Scsi_Cmnd * cmd) -{ - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(cmd->device->host->hostdata[0]); - int qbase = priv->qbase; - unsigned int i; - - priv->qabort = 0; - - REG0; - /* clearing of interrupts and the fifo is needed */ - - inb(qbase + 5); /* clear interrupts */ - if (inb(qbase + 5)) /* if still interrupting */ - outb(2, qbase + 3); /* reset chip */ - else if (inb(qbase + 7) & 0x1f) - outb(1, qbase + 3); /* clear fifo */ - while (inb(qbase + 5)); /* clear ints */ - REG1; - outb(1, qbase + 8); /* set for PIO pseudo DMA */ - outb(0, qbase + 0xb); /* disable ints */ - inb(qbase + 8); /* clear int bits */ - REG0; - outb(0x40, qbase + 0xb); /* enable features */ - - /* configurables */ - outb(qlcfgc, qbase + 0xc); - /* config: no reset interrupt, (initiator) bus id */ - outb(0x40 | qlcfg8 | priv->qinitid, qbase + 8); - outb(qlcfg7, qbase + 7); - outb(qlcfg6, qbase + 6); - /**/ outb(qlcfg5, qbase + 5); /* select timer */ - outb(qlcfg9 & 7, qbase + 9); /* prescaler */ -/* outb(0x99, qbase + 5); */ - outb(cmd->device->id, qbase + 4); - - for (i = 0; i < cmd->cmd_len; i++) - outb(cmd->cmnd[i], qbase + 2); - - priv->qlcmd = cmd; - outb(0x41, qbase + 3); /* select and send command */ -} - -/* - * Process scsi command - usually after interrupt - */ - -static unsigned int ql_pcmd(Scsi_Cmnd * cmd) -{ - unsigned int i, j; - unsigned long k; - unsigned int result; /* ultimate return result */ - unsigned int status; /* scsi returned status */ - unsigned int message; /* scsi returned message */ - unsigned int phase; /* recorded scsi phase */ - unsigned int reqlen; /* total length of transfer */ - struct scatterlist *sglist; /* scatter-gather list pointer */ - unsigned int sgcount; /* sg counter */ - char *buf; - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(cmd->device->host->hostdata[0]); - int qbase = priv->qbase; - - rtrc(1) - j = inb(qbase + 6); - i = inb(qbase + 5); - if (i == 0x20) { - return (DID_NO_CONNECT << 16); - } - i |= inb(qbase + 5); /* the 0x10 bit can be set after the 0x08 */ - if (i != 0x18) { - printk(KERN_ERR "Ql:Bad Interrupt status:%02x\n", i); - ql_zap(priv); - return (DID_BAD_INTR << 16); - } - j &= 7; /* j = inb( qbase + 7 ) >> 5; */ - - /* correct status is supposed to be step 4 */ - /* it sometimes returns step 3 but with 0 bytes left to send */ - /* We can try stuffing the FIFO with the max each time, but we will get a - sequence of 3 if any bytes are left (but we do flush the FIFO anyway */ - - if (j != 3 && j != 4) { - printk(KERN_ERR "Ql:Bad sequence for command %d, int %02X, cmdleft = %d\n", - j, i, inb(qbase + 7) & 0x1f); - ql_zap(priv); - return (DID_ERROR << 16); - } - result = DID_OK; - if (inb(qbase + 7) & 0x1f) /* if some bytes in fifo */ - outb(1, qbase + 3); /* clear fifo */ - /* note that request_bufflen is the total xfer size when sg is used */ - reqlen = cmd->request_bufflen; - /* note that it won't work if transfers > 16M are requested */ - if (reqlen && !((phase = inb(qbase + 4)) & 6)) { /* data phase */ - rtrc(2) - outb(reqlen, qbase); /* low-mid xfer cnt */ - outb(reqlen >> 8, qbase + 1); /* low-mid xfer cnt */ - outb(reqlen >> 16, qbase + 0xe); /* high xfer cnt */ - outb(0x90, qbase + 3); /* command do xfer */ - /* PIO pseudo DMA to buffer or sglist */ - REG1; - if (!cmd->use_sg) - ql_pdma(priv, phase, cmd->request_buffer, - cmd->request_bufflen); - else { - sgcount = cmd->use_sg; - sglist = cmd->request_buffer; - while (sgcount--) { - if (priv->qabort) { - REG0; - return ((priv->qabort == 1 ? - DID_ABORT : DID_RESET) << 16); - } - buf = page_address(sglist->page) + sglist->offset; - if (ql_pdma(priv, phase, buf, sglist->length)) - break; - sglist++; - } - } - REG0; - rtrc(2) - /* - * Wait for irq (split into second state of irq handler - * if this can take time) - */ - if ((k = ql_wai(priv))) - return (k << 16); - k = inb(qbase + 5); /* should be 0x10, bus service */ - } - - /* - * Enter Status (and Message In) Phase - */ - - k = jiffies + WATCHDOG; - - while (time_before(jiffies, k) && !priv->qabort && - !(inb(qbase + 4) & 6)) - cpu_relax(); /* wait for status phase */ - - if (time_after_eq(jiffies, k)) { - ql_zap(priv); - return (DID_TIME_OUT << 16); - } - - /* FIXME: timeout ?? */ - while (inb(qbase + 5)) - cpu_relax(); /* clear pending ints */ - - if (priv->qabort) - return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); - - outb(0x11, qbase + 3); /* get status and message */ - if ((k = ql_wai(priv))) - return (k << 16); - i = inb(qbase + 5); /* get chip irq stat */ - j = inb(qbase + 7) & 0x1f; /* and bytes rec'd */ - status = inb(qbase + 2); - message = inb(qbase + 2); - - /* - * Should get function complete int if Status and message, else - * bus serv if only status - */ - if (!((i == 8 && j == 2) || (i == 0x10 && j == 1))) { - printk(KERN_ERR "Ql:Error during status phase, int=%02X, %d bytes recd\n", i, j); - result = DID_ERROR; - } - outb(0x12, qbase + 3); /* done, disconnect */ - rtrc(1) - if ((k = ql_wai(priv))) - return (k << 16); - - /* - * Should get bus service interrupt and disconnect interrupt - */ - - i = inb(qbase + 5); /* should be bus service */ - while (!priv->qabort && ((i & 0x20) != 0x20)) { - barrier(); - cpu_relax(); - i |= inb(qbase + 5); - } - rtrc(0) - - if (priv->qabort) - return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); - - return (result << 16) | (message << 8) | (status & STATUS_MASK); -} - -/* - * Interrupt handler - */ - -static void ql_ihandl(int irq, void *dev_id, struct pt_regs *regs) -{ - Scsi_Cmnd *icmd; - struct Scsi_Host *host = (struct Scsi_Host *)dev_id; - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(host->hostdata[0]); - int qbase = priv->qbase; - REG0; - - if (!(inb(qbase + 4) & 0x80)) /* false alarm? */ - return; - - if (priv->qlcmd == NULL) { /* no command to process? */ - int i; - i = 16; - while (i-- && inb(qbase + 5)); /* maybe also ql_zap() */ - return; - } - icmd = priv->qlcmd; - icmd->result = ql_pcmd(icmd); - priv->qlcmd = NULL; - /* - * If result is CHECK CONDITION done calls qcommand to request - * sense - */ - (icmd->scsi_done) (icmd); -} - -irqreturn_t do_ql_ihandl(int irq, void *dev_id, struct pt_regs *regs) -{ - unsigned long flags; - struct Scsi_Host *host = dev_id; - - spin_lock_irqsave(host->host_lock, flags); - ql_ihandl(irq, dev_id, regs); - spin_unlock_irqrestore(host->host_lock, flags); - return IRQ_HANDLED; -} - -/* - * Queued command - */ - -int qlogicfas_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) -{ - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(cmd->device->host->hostdata[0]); - if (cmd->device->id == priv->qinitid) { - cmd->result = DID_BAD_TARGET << 16; - done(cmd); - return 0; - } - - cmd->scsi_done = done; - /* wait for the last command's interrupt to finish */ - while (priv->qlcmd != NULL) { - barrier(); - cpu_relax(); - } - ql_icmd(cmd); - return 0; -} +static char qlogicfas_name[] = "qlogicfas"; -#ifndef PCMCIA /* * Look for qlogic card and init if found */ -struct Scsi_Host *__qlogicfas_detect(Scsi_Host_Template *host, int qbase, +static struct Scsi_Host *__qlogicfas_detect(Scsi_Host_Template *host, + int qbase, int qlirq) { int qltyp; /* type of chip */ int qinitid; struct Scsi_Host *hreg; /* registered host structure */ - qlogicfas_priv_t priv; + struct qlogicfas408_priv *priv; /* Qlogic Cards only exist at 0x230 or 0x330 (the chip itself * decodes the address - I check 230 first since MIDI cards are @@ -498,9 +74,7 @@ struct Scsi_Host *__qlogicfas_detect(Scs goto err; } - REG1; - if (((inb(qbase + 0xe) ^ inb(qbase + 0xe)) != 7) - || ((inb(qbase + 0xe) ^ inb(qbase + 0xe)) != 7)) { + if (!qlogicfas408_detect(qbase, INT_TYPE)) { printk(KERN_WARNING "%s: probe failed for %#x\n", qlogicfas_name, qbase); @@ -510,29 +84,17 @@ struct Scsi_Host *__qlogicfas_detect(Scs printk(KERN_INFO "%s: Using preset base address of %03x," " IRQ %d\n", qlogicfas_name, qbase, qlirq); - qltyp = inb(qbase + 0xe) & 0xf8; + qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE); qinitid = host->this_id; if (qinitid < 0) qinitid = 7; /* if no ID, use 7 */ - outb(1, qbase + 8); /* set for PIO pseudo DMA */ - REG0; - outb(0x40 | qlcfg8 | qinitid, qbase + 8); /* (ini) bus id, disable scsi rst */ - outb(qlcfg5, qbase + 5); /* select timer */ - outb(qlcfg9, qbase + 9); /* prescaler */ - -#if QL_RESET_AT_START - outb(3, qbase + 3); - REG1; - /* FIXME: timeout */ - while (inb(qbase + 0xf) & 4) - cpu_relax(); - REG0; -#endif - hreg = scsi_host_alloc(host, sizeof(struct qlogicfas_priv)); + qlogicfas408_setup(qbase, qinitid, INT_TYPE); + + hreg = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv)); if (!hreg) goto err_release_mem; - priv = (qlogicfas_priv_t)&(hreg->hostdata[0]); + priv = get_priv_by_host(hreg); hreg->io_port = qbase; hreg->n_io_port = 16; hreg->dma_channel = -1; @@ -542,13 +104,14 @@ struct Scsi_Host *__qlogicfas_detect(Scs priv->qlirq = qlirq; priv->qinitid = qinitid; priv->shost = hreg; + priv->int_type = INT_TYPE; sprintf(priv->qinfo, "Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d", qltyp, qbase, qlirq, QL_TURBO_PDMA); host->name = qlogicfas_name; - if (request_irq(qlirq, do_ql_ihandl, 0, qlogicfas_name, hreg)) + if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogicfas_name, hreg)) goto free_scsi_host; if (scsi_add_host(hreg, NULL)) @@ -571,7 +134,7 @@ err: } #define MAX_QLOGICFAS 8 -static qlogicfas_priv_t cards; +static struct qlogicfas408_priv *cards; static int iobase[MAX_QLOGICFAS]; static int irq[MAX_QLOGICFAS] = { [0 ... MAX_QLOGICFAS-1] = -1 }; MODULE_PARM(iobase, "1-" __MODULE_STRING(MAX_QLOGICFAS) "i"); @@ -579,11 +142,11 @@ MODULE_PARM(irq, "1-" __MODULE_STRING(MA MODULE_PARM_DESC(iobase, "I/O address"); MODULE_PARM_DESC(irq, "IRQ"); -int __devinit qlogicfas_detect(Scsi_Host_Template *sht) +static int __devinit qlogicfas_detect(Scsi_Host_Template *sht) { - struct Scsi_Host *shost; - qlogicfas_priv_t priv; - int num; + struct Scsi_Host *shost; + struct qlogicfas408_priv *priv; + int num; for (num = 0; num < MAX_QLOGICFAS; num++) { shost = __qlogicfas_detect(sht, iobase[num], irq[num]); @@ -591,7 +154,7 @@ int __devinit qlogicfas_detect(Scsi_Host /* no more devices */ break; } - priv = (qlogicfas_priv_t)&(shost->hostdata[0]); + priv = get_priv_by_host(shost); priv->next = cards; cards = priv; } @@ -601,13 +164,10 @@ int __devinit qlogicfas_detect(Scsi_Host static int qlogicfas_release(struct Scsi_Host *shost) { - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(shost->hostdata[0]); - int qbase = priv->qbase; + struct qlogicfas408_priv *priv = get_priv_by_host(shost); if (shost->irq) { - REG1; - outb(0, qbase + 0xb); /* disable ints */ - + qlogicfas408_disable_ints(priv); free_irq(shost->irq, shost); } if (shost->dma_channel != 0xff) @@ -619,100 +179,21 @@ static int qlogicfas_release(struct Scsi return 0; } -#endif /* ifndef PCMCIA */ - -/* - * Return bios parameters - */ - -int qlogicfas_biosparam(struct scsi_device * disk, - struct block_device *dev, - sector_t capacity, int ip[]) -{ -/* This should mimic the DOS Qlogic driver's behavior exactly */ - ip[0] = 0x40; - ip[1] = 0x20; - ip[2] = (unsigned long) capacity / (ip[0] * ip[1]); - if (ip[2] > 1024) { - ip[0] = 0xff; - ip[1] = 0x3f; - ip[2] = (unsigned long) capacity / (ip[0] * ip[1]); -#if 0 - if (ip[2] > 1023) - ip[2] = 1023; -#endif - } - return 0; -} - -/* - * Abort a command in progress - */ - -static int qlogicfas_abort(Scsi_Cmnd * cmd) -{ - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(cmd->device->host->hostdata[0]); - priv->qabort = 1; - ql_zap(priv); - return SUCCESS; -} - -/* - * Reset SCSI bus - * FIXME: This function is invoked with cmd = NULL directly by - * the PCMCIA qlogic_stub code. This wants fixing - */ - -int qlogicfas_bus_reset(Scsi_Cmnd * cmd) -{ - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(cmd->device->host->hostdata[0]); - priv->qabort = 2; - ql_zap(priv); - return SUCCESS; -} - -/* - * Reset SCSI host controller - */ - -static int qlogicfas_host_reset(Scsi_Cmnd * cmd) -{ - return FAILED; -} - -/* - * Reset SCSI device - */ - -static int qlogicfas_device_reset(Scsi_Cmnd * cmd) -{ - return FAILED; -} - -/* - * Return info string - */ - -static const char *qlogicfas_info(struct Scsi_Host *host) -{ - qlogicfas_priv_t priv = (qlogicfas_priv_t)&(host->hostdata[0]); - return priv->qinfo; -} /* * The driver template is also needed for PCMCIA */ -Scsi_Host_Template qlogicfas_driver_template = { +static Scsi_Host_Template qlogicfas_driver_template = { .module = THIS_MODULE, .name = qlogicfas_name, .proc_name = qlogicfas_name, - .info = qlogicfas_info, - .queuecommand = qlogicfas_queuecommand, - .eh_abort_handler = qlogicfas_abort, - .eh_bus_reset_handler = qlogicfas_bus_reset, - .eh_device_reset_handler= qlogicfas_device_reset, - .eh_host_reset_handler = qlogicfas_host_reset, - .bios_param = qlogicfas_biosparam, + .info = qlogicfas408_info, + .queuecommand = qlogicfas408_queuecommand, + .eh_abort_handler = qlogicfas408_abort, + .eh_bus_reset_handler = qlogicfas408_bus_reset, + .eh_device_reset_handler= qlogicfas408_device_reset, + .eh_host_reset_handler = qlogicfas408_host_reset, + .bios_param = qlogicfas408_biosparam, .can_queue = 1, .this_id = -1, .sg_tablesize = SG_ALL, @@ -720,7 +201,6 @@ Scsi_Host_Template qlogicfas_driver_temp .use_clustering = DISABLE_CLUSTERING, }; -#ifndef PCMCIA static __init int qlogicfas_init(void) { if (!qlogicfas_detect(&qlogicfas_driver_template)) { @@ -736,16 +216,15 @@ static __init int qlogicfas_init(void) static __exit void qlogicfas_exit(void) { - qlogicfas_priv_t priv; + struct qlogicfas408_priv *priv; for (priv = cards; priv != NULL; priv = priv->next) qlogicfas_release(priv->shost); } MODULE_AUTHOR("Tom Zerucha, Michael Griffith"); -MODULE_DESCRIPTION("Driver for the Qlogic FAS SCSI controllers"); +MODULE_DESCRIPTION("Driver for the Qlogic FAS408 based ISA card"); MODULE_LICENSE("GPL"); module_init(qlogicfas_init); module_exit(qlogicfas_exit); -#endif /* ifndef PCMCIA */ diff -urNp -X dontdiff linux-2.6.4-applied/drivers/scsi/qlogicfas.h linux-2.6.4-work/drivers/scsi/qlogicfas.h --- linux-2.6.4-applied/drivers/scsi/qlogicfas.h 2004-03-13 15:10:48.000000000 -0300 +++ linux-2.6.4-work/drivers/scsi/qlogicfas.h 1969-12-31 21:00:00.000000000 -0300 @@ -1,124 +0,0 @@ -/* to be used by qlogicfas and qlogic_cs */ -#ifndef __QLOGICFAS_H -#define __QLOGICFAS_H - -/*----------------------------------------------------------------*/ -/* Configuration */ - -/* Set the following to 2 to use normal interrupt (active high/totempole- - tristate), otherwise use 0 (REQUIRED FOR PCMCIA) for active low, open - drain */ - -#define QL_INT_ACTIVE_HIGH 2 - -/* Set the following to max out the speed of the PIO PseudoDMA transfers, - again, 0 tends to be slower, but more stable. */ - -#define QL_TURBO_PDMA 1 - -/* This should be 1 to enable parity detection */ - -#define QL_ENABLE_PARITY 1 - -/* This will reset all devices when the driver is initialized (during bootup). - The other linux drivers don't do this, but the DOS drivers do, and after - using DOS or some kind of crash or lockup this will bring things back - without requiring a cold boot. It does take some time to recover from a - reset, so it is slower, and I have seen timeouts so that devices weren't - recognized when this was set. */ - -#define QL_RESET_AT_START 0 - -/* crystal frequency in megahertz (for offset 5 and 9) - Please set this for your card. Most Qlogic cards are 40 Mhz. The - Control Concepts ISA (not VLB) is 24 Mhz */ - -#define XTALFREQ 40 - -/**********/ -/* DANGER! modify these at your own risk */ -/* SLOWCABLE can usually be reset to zero if you have a clean setup and - proper termination. The rest are for synchronous transfers and other - advanced features if your device can transfer faster than 5Mb/sec. - If you are really curious, email me for a quick howto until I have - something official */ -/**********/ - -/*****/ -/* config register 1 (offset 8) options */ -/* This needs to be set to 1 if your cabling is long or noisy */ -#define SLOWCABLE 1 - -/*****/ -/* offset 0xc */ -/* This will set fast (10Mhz) synchronous timing when set to 1 - For this to have an effect, FASTCLK must also be 1 */ -#define FASTSCSI 0 - -/* This when set to 1 will set a faster sync transfer rate */ -#define FASTCLK 0 /*(XTALFREQ>25?1:0)*/ - -/*****/ -/* offset 6 */ -/* This is the sync transfer divisor, XTALFREQ/X will be the maximum - achievable data rate (assuming the rest of the system is capable - and set properly) */ -#define SYNCXFRPD 5 /*(XTALFREQ/5)*/ - -/*****/ -/* offset 7 */ -/* This is the count of how many synchronous transfers can take place - i.e. how many reqs can occur before an ack is given. - The maximum value for this is 15, the upper bits can modify - REQ/ACK assertion and deassertion during synchronous transfers - If this is 0, the bus will only transfer asynchronously */ -#define SYNCOFFST 0 -/* for the curious, bits 7&6 control the deassertion delay in 1/2 cycles - of the 40Mhz clock. If FASTCLK is 1, specifying 01 (1/2) will - cause the deassertion to be early by 1/2 clock. Bits 5&4 control - the assertion delay, also in 1/2 clocks (FASTCLK is ignored here). */ - -/*----------------------------------------------------------------*/ -#ifdef PCMCIA -#undef QL_INT_ACTIVE_HIGH -#define QL_INT_ACTIVE_HIGH 0 -#endif - -struct qlogicfas_priv; -typedef struct qlogicfas_priv *qlogicfas_priv_t; -struct qlogicfas_priv { - int qbase; /* Port */ - int qinitid; /* initiator ID */ - int qabort; /* Flag to cause an abort */ - int qlirq; /* IRQ being used */ - char qinfo[80]; /* description */ - Scsi_Cmnd *qlcmd; /* current command being processed */ - struct Scsi_Host *shost; /* pointer back to host */ - qlogicfas_priv_t next; /* next private struct */ -}; - -extern int qlcfg5; -extern int qlcfg6; -extern int qlcfg7; -extern int qlcfg8; -extern int qlcfg9; -extern int qlcfgc; - -/* The qlogic card uses two register maps - These macros select which one */ -#define REG0 ( outb( inb( qbase + 0xd ) & 0x7f , qbase + 0xd ), outb( 4 , qbase + 0xd )) -#define REG1 ( outb( inb( qbase + 0xd ) | 0x80 , qbase + 0xd ), outb( 0xb4 | QL_INT_ACTIVE_HIGH , qbase + 0xd )) - -/* following is watchdog timeout in microseconds */ -#define WATCHDOG 5000000 - -/*----------------------------------------------------------------*/ -/* the following will set the monitor border color (useful to find - where something crashed or gets stuck at and as a simple profiler) */ - -#if 0 -#define rtrc(i) {inb(0x3da);outb(0x31,0x3c0);outb((i),0x3c0);} -#else -#define rtrc(i) {} -#endif -#endif /* __QLOGICFAS_H */ - diff -urNp -X dontdiff linux-2.6.4-applied/drivers/scsi/qlogicfas408.c linux-2.6.4-work/drivers/scsi/qlogicfas408.c --- linux-2.6.4-applied/drivers/scsi/qlogicfas408.c 1969-12-31 21:00:00.000000000 -0300 +++ linux-2.6.4-work/drivers/scsi/qlogicfas408.c 2004-03-30 13:49:22.000000000 -0300 @@ -0,0 +1,637 @@ +/*----------------------------------------------------------------*/ +/* + Qlogic linux driver - work in progress. No Warranty express or implied. + Use at your own risk. Support Tort Reform so you won't have to read all + these silly disclaimers. + + Copyright 1994, Tom Zerucha. + tz@execpc.com + + Additional Code, and much appreciated help by + Michael A. Griffith + grif@cs.ucr.edu + + Thanks to Eric Youngdale and Dave Hinds for loadable module and PCMCIA + help respectively, and for suffering through my foolishness during the + debugging process. + + Reference Qlogic FAS408 Technical Manual, 53408-510-00A, May 10, 1994 + (you can reference it, but it is incomplete and inaccurate in places) + + Version 0.46 1/30/97 - kernel 1.2.0+ + + Functions as standalone, loadable, and PCMCIA driver, the latter from + Dave Hinds' PCMCIA package. + + Cleaned up 26/10/2002 by Alan Cox as part of the 2.5 + SCSI driver cleanup and audit. This driver still needs work on the + following + - Non terminating hardware waits + - Some layering violations with its pcmcia stub + + Redistributable under terms of the GNU General Public License + + For the avoidance of doubt the "preferred form" of this code is one which + is in an open non patent encumbered format. Where cryptographic key signing + forms part of the process of creating an executable the information + including keys needed to generate an equivalently functional executable + are deemed to be part of the source code. + +*/ + +#include +#include /* to get disk capacity */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "scsi.h" +#include "hosts.h" +#include "qlogicfas408.h" + +/*----------------------------------------------------------------*/ +static int qlcfg5 = (XTALFREQ << 5); /* 15625/512 */ +static int qlcfg6 = SYNCXFRPD; +static int qlcfg7 = SYNCOFFST; +static int qlcfg8 = (SLOWCABLE << 7) | (QL_ENABLE_PARITY << 4); +static int qlcfg9 = ((XTALFREQ + 4) / 5); +static int qlcfgc = (FASTCLK << 3) | (FASTSCSI << 4); + +/*----------------------------------------------------------------*/ + +/*----------------------------------------------------------------*/ +/* local functions */ +/*----------------------------------------------------------------*/ + +/* error recovery - reset everything */ + +static void ql_zap(struct qlogicfas408_priv *priv) +{ + int x; + int qbase = priv->qbase; + int int_type = priv->int_type; + + x = inb(qbase + 0xd); + REG0; + outb(3, qbase + 3); /* reset SCSI */ + outb(2, qbase + 3); /* reset chip */ + if (x & 0x80) + REG1; +} + +/* + * Do a pseudo-dma tranfer + */ + +static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request, int reqlen) +{ + int j; + int qbase = priv->qbase; + j = 0; + if (phase & 1) { /* in */ +#if QL_TURBO_PDMA + rtrc(4) + /* empty fifo in large chunks */ + if (reqlen >= 128 && (inb(qbase + 8) & 2)) { /* full */ + insl(qbase + 4, request, 32); + reqlen -= 128; + request += 128; + } + while (reqlen >= 84 && !(j & 0xc0)) /* 2/3 */ + if ((j = inb(qbase + 8)) & 4) + { + insl(qbase + 4, request, 21); + reqlen -= 84; + request += 84; + } + if (reqlen >= 44 && (inb(qbase + 8) & 8)) { /* 1/3 */ + insl(qbase + 4, request, 11); + reqlen -= 44; + request += 44; + } +#endif + /* until both empty and int (or until reclen is 0) */ + rtrc(7) + j = 0; + while (reqlen && !((j & 0x10) && (j & 0xc0))) + { + /* while bytes to receive and not empty */ + j &= 0xc0; + while (reqlen && !((j = inb(qbase + 8)) & 0x10)) + { + *request++ = inb(qbase + 4); + reqlen--; + } + if (j & 0x10) + j = inb(qbase + 8); + + } + } else { /* out */ +#if QL_TURBO_PDMA + rtrc(4) + if (reqlen >= 128 && inb(qbase + 8) & 0x10) { /* empty */ + outsl(qbase + 4, request, 32); + reqlen -= 128; + request += 128; + } + while (reqlen >= 84 && !(j & 0xc0)) /* 1/3 */ + if (!((j = inb(qbase + 8)) & 8)) { + outsl(qbase + 4, request, 21); + reqlen -= 84; + request += 84; + } + if (reqlen >= 40 && !(inb(qbase + 8) & 4)) { /* 2/3 */ + outsl(qbase + 4, request, 10); + reqlen -= 40; + request += 40; + } +#endif + /* until full and int (or until reclen is 0) */ + rtrc(7) + j = 0; + while (reqlen && !((j & 2) && (j & 0xc0))) { + /* while bytes to send and not full */ + while (reqlen && !((j = inb(qbase + 8)) & 2)) + { + outb(*request++, qbase + 4); + reqlen--; + } + if (j & 2) + j = inb(qbase + 8); + } + } + /* maybe return reqlen */ + return inb(qbase + 8) & 0xc0; +} + +/* + * Wait for interrupt flag (polled - not real hardware interrupt) + */ + +static int ql_wai(struct qlogicfas408_priv *priv) +{ + int k; + int qbase = priv->qbase; + unsigned long i; + + k = 0; + i = jiffies + WATCHDOG; + while (time_before(jiffies, i) && !priv->qabort && + !((k = inb(qbase + 4)) & 0xe0)) { + barrier(); + cpu_relax(); + } + if (time_after_eq(jiffies, i)) + return (DID_TIME_OUT); + if (priv->qabort) + return (priv->qabort == 1 ? DID_ABORT : DID_RESET); + if (k & 0x60) + ql_zap(priv); + if (k & 0x20) + return (DID_PARITY); + if (k & 0x40) + return (DID_ERROR); + return 0; +} + +/* + * Initiate scsi command - queueing handler + * caller must hold host lock + */ + +static void ql_icmd(Scsi_Cmnd * cmd) +{ + struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + int qbase = priv->qbase; + int int_type = priv->int_type; + unsigned int i; + + priv->qabort = 0; + + REG0; + /* clearing of interrupts and the fifo is needed */ + + inb(qbase + 5); /* clear interrupts */ + if (inb(qbase + 5)) /* if still interrupting */ + outb(2, qbase + 3); /* reset chip */ + else if (inb(qbase + 7) & 0x1f) + outb(1, qbase + 3); /* clear fifo */ + while (inb(qbase + 5)); /* clear ints */ + REG1; + outb(1, qbase + 8); /* set for PIO pseudo DMA */ + outb(0, qbase + 0xb); /* disable ints */ + inb(qbase + 8); /* clear int bits */ + REG0; + outb(0x40, qbase + 0xb); /* enable features */ + + /* configurables */ + outb(qlcfgc, qbase + 0xc); + /* config: no reset interrupt, (initiator) bus id */ + outb(0x40 | qlcfg8 | priv->qinitid, qbase + 8); + outb(qlcfg7, qbase + 7); + outb(qlcfg6, qbase + 6); + /**/ outb(qlcfg5, qbase + 5); /* select timer */ + outb(qlcfg9 & 7, qbase + 9); /* prescaler */ +/* outb(0x99, qbase + 5); */ + outb(cmd->device->id, qbase + 4); + + for (i = 0; i < cmd->cmd_len; i++) + outb(cmd->cmnd[i], qbase + 2); + + priv->qlcmd = cmd; + outb(0x41, qbase + 3); /* select and send command */ +} + +/* + * Process scsi command - usually after interrupt + */ + +static unsigned int ql_pcmd(Scsi_Cmnd * cmd) +{ + unsigned int i, j; + unsigned long k; + unsigned int result; /* ultimate return result */ + unsigned int status; /* scsi returned status */ + unsigned int message; /* scsi returned message */ + unsigned int phase; /* recorded scsi phase */ + unsigned int reqlen; /* total length of transfer */ + struct scatterlist *sglist; /* scatter-gather list pointer */ + unsigned int sgcount; /* sg counter */ + char *buf; + struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + int qbase = priv->qbase; + int int_type = priv->int_type; + + rtrc(1) + j = inb(qbase + 6); + i = inb(qbase + 5); + if (i == 0x20) { + return (DID_NO_CONNECT << 16); + } + i |= inb(qbase + 5); /* the 0x10 bit can be set after the 0x08 */ + if (i != 0x18) { + printk(KERN_ERR "Ql:Bad Interrupt status:%02x\n", i); + ql_zap(priv); + return (DID_BAD_INTR << 16); + } + j &= 7; /* j = inb( qbase + 7 ) >> 5; */ + + /* correct status is supposed to be step 4 */ + /* it sometimes returns step 3 but with 0 bytes left to send */ + /* We can try stuffing the FIFO with the max each time, but we will get a + sequence of 3 if any bytes are left (but we do flush the FIFO anyway */ + + if (j != 3 && j != 4) { + printk(KERN_ERR "Ql:Bad sequence for command %d, int %02X, cmdleft = %d\n", + j, i, inb(qbase + 7) & 0x1f); + ql_zap(priv); + return (DID_ERROR << 16); + } + result = DID_OK; + if (inb(qbase + 7) & 0x1f) /* if some bytes in fifo */ + outb(1, qbase + 3); /* clear fifo */ + /* note that request_bufflen is the total xfer size when sg is used */ + reqlen = cmd->request_bufflen; + /* note that it won't work if transfers > 16M are requested */ + if (reqlen && !((phase = inb(qbase + 4)) & 6)) { /* data phase */ + rtrc(2) + outb(reqlen, qbase); /* low-mid xfer cnt */ + outb(reqlen >> 8, qbase + 1); /* low-mid xfer cnt */ + outb(reqlen >> 16, qbase + 0xe); /* high xfer cnt */ + outb(0x90, qbase + 3); /* command do xfer */ + /* PIO pseudo DMA to buffer or sglist */ + REG1; + if (!cmd->use_sg) + ql_pdma(priv, phase, cmd->request_buffer, + cmd->request_bufflen); + else { + sgcount = cmd->use_sg; + sglist = cmd->request_buffer; + while (sgcount--) { + if (priv->qabort) { + REG0; + return ((priv->qabort == 1 ? + DID_ABORT : DID_RESET) << 16); + } + buf = page_address(sglist->page) + sglist->offset; + if (ql_pdma(priv, phase, buf, sglist->length)) + break; + sglist++; + } + } + REG0; + rtrc(2) + /* + * Wait for irq (split into second state of irq handler + * if this can take time) + */ + if ((k = ql_wai(priv))) + return (k << 16); + k = inb(qbase + 5); /* should be 0x10, bus service */ + } + + /* + * Enter Status (and Message In) Phase + */ + + k = jiffies + WATCHDOG; + + while (time_before(jiffies, k) && !priv->qabort && + !(inb(qbase + 4) & 6)) + cpu_relax(); /* wait for status phase */ + + if (time_after_eq(jiffies, k)) { + ql_zap(priv); + return (DID_TIME_OUT << 16); + } + + /* FIXME: timeout ?? */ + while (inb(qbase + 5)) + cpu_relax(); /* clear pending ints */ + + if (priv->qabort) + return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); + + outb(0x11, qbase + 3); /* get status and message */ + if ((k = ql_wai(priv))) + return (k << 16); + i = inb(qbase + 5); /* get chip irq stat */ + j = inb(qbase + 7) & 0x1f; /* and bytes rec'd */ + status = inb(qbase + 2); + message = inb(qbase + 2); + + /* + * Should get function complete int if Status and message, else + * bus serv if only status + */ + if (!((i == 8 && j == 2) || (i == 0x10 && j == 1))) { + printk(KERN_ERR "Ql:Error during status phase, int=%02X, %d bytes recd\n", i, j); + result = DID_ERROR; + } + outb(0x12, qbase + 3); /* done, disconnect */ + rtrc(1) + if ((k = ql_wai(priv))) + return (k << 16); + + /* + * Should get bus service interrupt and disconnect interrupt + */ + + i = inb(qbase + 5); /* should be bus service */ + while (!priv->qabort && ((i & 0x20) != 0x20)) { + barrier(); + cpu_relax(); + i |= inb(qbase + 5); + } + rtrc(0) + + if (priv->qabort) + return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); + + return (result << 16) | (message << 8) | (status & STATUS_MASK); +} + +/* + * Interrupt handler + */ + +static void ql_ihandl(int irq, void *dev_id, struct pt_regs *regs) +{ + Scsi_Cmnd *icmd; + struct Scsi_Host *host = (struct Scsi_Host *)dev_id; + struct qlogicfas408_priv *priv = get_priv_by_host(host); + int qbase = priv->qbase; + REG0; + + if (!(inb(qbase + 4) & 0x80)) /* false alarm? */ + return; + + if (priv->qlcmd == NULL) { /* no command to process? */ + int i; + i = 16; + while (i-- && inb(qbase + 5)); /* maybe also ql_zap() */ + return; + } + icmd = priv->qlcmd; + icmd->result = ql_pcmd(icmd); + priv->qlcmd = NULL; + /* + * If result is CHECK CONDITION done calls qcommand to request + * sense + */ + (icmd->scsi_done) (icmd); +} + +irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id, struct pt_regs *regs) +{ + unsigned long flags; + struct Scsi_Host *host = dev_id; + + spin_lock_irqsave(host->host_lock, flags); + ql_ihandl(irq, dev_id, regs); + spin_unlock_irqrestore(host->host_lock, flags); + return IRQ_HANDLED; +} + +/* + * Queued command + */ + +int qlogicfas408_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) +{ + struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + if (cmd->device->id == priv->qinitid) { + cmd->result = DID_BAD_TARGET << 16; + done(cmd); + return 0; + } + + cmd->scsi_done = done; + /* wait for the last command's interrupt to finish */ + while (priv->qlcmd != NULL) { + barrier(); + cpu_relax(); + } + ql_icmd(cmd); + return 0; +} + +/* + * Return bios parameters + */ + +int qlogicfas408_biosparam(struct scsi_device * disk, + struct block_device *dev, + sector_t capacity, int ip[]) +{ +/* This should mimic the DOS Qlogic driver's behavior exactly */ + ip[0] = 0x40; + ip[1] = 0x20; + ip[2] = (unsigned long) capacity / (ip[0] * ip[1]); + if (ip[2] > 1024) { + ip[0] = 0xff; + ip[1] = 0x3f; + ip[2] = (unsigned long) capacity / (ip[0] * ip[1]); +#if 0 + if (ip[2] > 1023) + ip[2] = 1023; +#endif + } + return 0; +} + +/* + * Abort a command in progress + */ + +int qlogicfas408_abort(Scsi_Cmnd * cmd) +{ + struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + priv->qabort = 1; + ql_zap(priv); + return SUCCESS; +} + +/* + * Reset SCSI bus + * FIXME: This function is invoked with cmd = NULL directly by + * the PCMCIA qlogic_stub code. This wants fixing + */ + +int qlogicfas408_bus_reset(Scsi_Cmnd * cmd) +{ + struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + priv->qabort = 2; + ql_zap(priv); + return SUCCESS; +} + +/* + * Reset SCSI host controller + */ + +int qlogicfas408_host_reset(Scsi_Cmnd * cmd) +{ + return FAILED; +} + +/* + * Reset SCSI device + */ + +int qlogicfas408_device_reset(Scsi_Cmnd * cmd) +{ + return FAILED; +} + +/* + * Return info string + */ + +char *qlogicfas408_info(struct Scsi_Host *host) +{ + struct qlogicfas408_priv *priv = get_priv_by_host(host); + return priv->qinfo; +} + +/* + * Get type of chip + */ + +int qlogicfas408_get_chip_type(int qbase, int int_type) +{ + REG1; + return inb(qbase + 0xe) & 0xf8; +} + +/* + * Perform initialization tasks + */ + +void qlogicfas408_setup(int qbase, int id, int int_type) +{ + outb(1, qbase + 8); /* set for PIO pseudo DMA */ + REG0; + outb(0x40 | qlcfg8 | id, qbase + 8); /* (ini) bus id, disable scsi rst */ + outb(qlcfg5, qbase + 5); /* select timer */ + outb(qlcfg9, qbase + 9); /* prescaler */ + +#if QL_RESET_AT_START + outb(3, qbase + 3); + + REG1; + /* FIXME: timeout */ + while (inb(qbase + 0xf) & 4) + cpu_relax(); + + REG0; +#endif +} + +/* + * Checks if this is a QLogic FAS 408 + */ + +int qlogicfas408_detect(int qbase, int int_type) +{ + REG1; + return (((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7) && + ((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7)); +} + +/* + * Disable interrupts + */ + +void qlogicfas408_disable_ints(struct qlogicfas408_priv *priv) +{ + int qbase = priv->qbase; + int int_type = priv->int_type; + + REG1; + outb(0, qbase + 0xb); /* disable ints */ +} + +/* + * Init and exit functions + */ + +static int __init qlogicfas408_init(void) +{ + return 0; +} + +static void __exit qlogicfas408_exit(void) +{ + +} + +MODULE_AUTHOR("Tom Zerucha, Michael Griffith"); +MODULE_DESCRIPTION("Driver for the Qlogic FAS SCSI controllers"); +MODULE_LICENSE("GPL"); +module_init(qlogicfas408_init); +module_exit(qlogicfas408_exit); + +EXPORT_SYMBOL(qlogicfas408_info); +EXPORT_SYMBOL(qlogicfas408_queuecommand); +EXPORT_SYMBOL(qlogicfas408_abort); +EXPORT_SYMBOL(qlogicfas408_bus_reset); +EXPORT_SYMBOL(qlogicfas408_device_reset); +EXPORT_SYMBOL(qlogicfas408_host_reset); +EXPORT_SYMBOL(qlogicfas408_biosparam); +EXPORT_SYMBOL(qlogicfas408_ihandl); +EXPORT_SYMBOL(qlogicfas408_get_chip_type); +EXPORT_SYMBOL(qlogicfas408_setup); +EXPORT_SYMBOL(qlogicfas408_detect); +EXPORT_SYMBOL(qlogicfas408_disable_ints); + diff -urNp -X dontdiff linux-2.6.4-applied/drivers/scsi/qlogicfas408.h linux-2.6.4-work/drivers/scsi/qlogicfas408.h --- linux-2.6.4-applied/drivers/scsi/qlogicfas408.h 1969-12-31 21:00:00.000000000 -0300 +++ linux-2.6.4-work/drivers/scsi/qlogicfas408.h 2004-03-30 13:49:32.000000000 -0300 @@ -0,0 +1,120 @@ +/* to be used by qlogicfas and qlogic_cs */ +#ifndef __QLOGICFAS408_H +#define __QLOGICFAS408_H + +/*----------------------------------------------------------------*/ +/* Configuration */ + +/* Set the following to max out the speed of the PIO PseudoDMA transfers, + again, 0 tends to be slower, but more stable. */ + +#define QL_TURBO_PDMA 1 + +/* This should be 1 to enable parity detection */ + +#define QL_ENABLE_PARITY 1 + +/* This will reset all devices when the driver is initialized (during bootup). + The other linux drivers don't do this, but the DOS drivers do, and after + using DOS or some kind of crash or lockup this will bring things back + without requiring a cold boot. It does take some time to recover from a + reset, so it is slower, and I have seen timeouts so that devices weren't + recognized when this was set. */ + +#define QL_RESET_AT_START 0 + +/* crystal frequency in megahertz (for offset 5 and 9) + Please set this for your card. Most Qlogic cards are 40 Mhz. The + Control Concepts ISA (not VLB) is 24 Mhz */ + +#define XTALFREQ 40 + +/**********/ +/* DANGER! modify these at your own risk */ +/* SLOWCABLE can usually be reset to zero if you have a clean setup and + proper termination. The rest are for synchronous transfers and other + advanced features if your device can transfer faster than 5Mb/sec. + If you are really curious, email me for a quick howto until I have + something official */ +/**********/ + +/*****/ +/* config register 1 (offset 8) options */ +/* This needs to be set to 1 if your cabling is long or noisy */ +#define SLOWCABLE 1 + +/*****/ +/* offset 0xc */ +/* This will set fast (10Mhz) synchronous timing when set to 1 + For this to have an effect, FASTCLK must also be 1 */ +#define FASTSCSI 0 + +/* This when set to 1 will set a faster sync transfer rate */ +#define FASTCLK 0 /*(XTALFREQ>25?1:0)*/ + +/*****/ +/* offset 6 */ +/* This is the sync transfer divisor, XTALFREQ/X will be the maximum + achievable data rate (assuming the rest of the system is capable + and set properly) */ +#define SYNCXFRPD 5 /*(XTALFREQ/5)*/ + +/*****/ +/* offset 7 */ +/* This is the count of how many synchronous transfers can take place + i.e. how many reqs can occur before an ack is given. + The maximum value for this is 15, the upper bits can modify + REQ/ACK assertion and deassertion during synchronous transfers + If this is 0, the bus will only transfer asynchronously */ +#define SYNCOFFST 0 +/* for the curious, bits 7&6 control the deassertion delay in 1/2 cycles + of the 40Mhz clock. If FASTCLK is 1, specifying 01 (1/2) will + cause the deassertion to be early by 1/2 clock. Bits 5&4 control + the assertion delay, also in 1/2 clocks (FASTCLK is ignored here). */ + +/*----------------------------------------------------------------*/ + +struct qlogicfas408_priv { + int qbase; /* Port */ + int qinitid; /* initiator ID */ + int qabort; /* Flag to cause an abort */ + int qlirq; /* IRQ being used */ + int int_type; /* type of irq, 2 for ISA board, 0 for PCMCIA */ + char qinfo[80]; /* description */ + Scsi_Cmnd *qlcmd; /* current command being processed */ + struct Scsi_Host *shost; /* pointer back to host */ + struct qlogicfas408_priv *next; /* next private struct */ +}; + +/* The qlogic card uses two register maps - These macros select which one */ +#define REG0 ( outb( inb( qbase + 0xd ) & 0x7f , qbase + 0xd ), outb( 4 , qbase + 0xd )) +#define REG1 ( outb( inb( qbase + 0xd ) | 0x80 , qbase + 0xd ), outb( 0xb4 | int_type, qbase + 0xd )) + +/* following is watchdog timeout in microseconds */ +#define WATCHDOG 5000000 + +/*----------------------------------------------------------------*/ +/* the following will set the monitor border color (useful to find + where something crashed or gets stuck at and as a simple profiler) */ + +#define rtrc(i) {} + +#define get_priv_by_cmd(x) (struct qlogicfas408_priv *)&((x)->device->host->hostdata[0]) +#define get_priv_by_host(x) (struct qlogicfas408_priv *)&((x)->hostdata[0]) + +irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id, struct pt_regs *regs); +int qlogicfas408_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)); +int qlogicfas408_biosparam(struct scsi_device * disk, + struct block_device *dev, + sector_t capacity, int ip[]); +int qlogicfas408_abort(Scsi_Cmnd * cmd); +int qlogicfas408_bus_reset(Scsi_Cmnd * cmd); +int qlogicfas408_host_reset(Scsi_Cmnd * cmd); +int qlogicfas408_device_reset(Scsi_Cmnd * cmd); +char *qlogicfas408_info(struct Scsi_Host *host); +int qlogicfas408_get_chip_type(int qbase, int int_type); +void qlogicfas408_setup(int qbase, int id, int int_type); +int qlogicfas408_detect(int qbase, int int_type); +void qlogicfas408_disable_ints(struct qlogicfas408_priv *priv); +#endif /* __QLOGICFAS408_H */ +