Import of Linux/MIPS 2.1.36

1 files changed, 1127 insertions, 0 deletions

diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
new file mode 100644
index 000000000..54658955f
--- /dev/null
+++ b/drivers/scsi/qlogicpti.c
@@ -0,0 +1,1127 @@
+/* qlogicpti.c: Performance Technologies QlogicISP sbus card driver.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
+ *
+ * A lot of this driver was directly stolen from Erik H. Moe's PCI
+ * Qlogic ISP driver.  Mucho kudos to him for this code.
+ *
+ * An even bigger kudos to John Grana at Performance Technologies
+ * for providing me with the hardware to write this driver, you rule
+ * John you really do.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/malloc.h>
+#include <linux/blk.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+
+#include <asm/byteorder.h>
+
+#include "scsi.h"
+#include "hosts.h"
+#include "qlogicpti.h"
+
+#include <asm/sbus.h>
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/machines.h>
+#include <asm/ptrace.h>
+#include <asm/pgtable.h>
+#include <asm/oplib.h>
+#include <asm/vaddrs.h>
+#include <asm/io.h>
+
+#include <linux/module.h>
+
+#define MAX_TARGETS	16
+#define MAX_LUNS	8
+
+#define DEFAULT_LOOP_COUNT	1000000
+
+#include "qlogicpti_asm.c"
+
+static struct qlogicpti *qptichain;
+static int qptis_running = 0;
+
+#define PACKB(a, b)			(((a)<<4)|(b))
+
+const u_char mbox_param[] = {
+	PACKB(1, 1),	/* MBOX_NO_OP */
+	PACKB(5, 5),	/* MBOX_LOAD_RAM */
+	PACKB(2, 0),	/* MBOX_EXEC_FIRMWARE */
+	PACKB(5, 5),	/* MBOX_DUMP_RAM */
+	PACKB(3, 3),	/* MBOX_WRITE_RAM_WORD */
+	PACKB(2, 3),	/* MBOX_READ_RAM_WORD */
+	PACKB(6, 6),	/* MBOX_MAILBOX_REG_TEST */
+	PACKB(2, 3),	/* MBOX_VERIFY_CHECKSUM	*/
+	PACKB(1, 3),	/* MBOX_ABOUT_FIRMWARE */
+	PACKB(0, 0),	/* 0x0009 */
+	PACKB(0, 0),	/* 0x000a */
+	PACKB(0, 0),	/* 0x000b */
+	PACKB(0, 0),	/* 0x000c */
+	PACKB(0, 0),	/* 0x000d */
+	PACKB(1, 2),	/* MBOX_CHECK_FIRMWARE */
+	PACKB(0, 0),	/* 0x000f */
+	PACKB(5, 5),	/* MBOX_INIT_REQ_QUEUE */
+	PACKB(6, 6),	/* MBOX_INIT_RES_QUEUE */
+	PACKB(4, 4),	/* MBOX_EXECUTE_IOCB */
+	PACKB(2, 2),	/* MBOX_WAKE_UP	*/
+	PACKB(1, 6),	/* MBOX_STOP_FIRMWARE */
+	PACKB(4, 4),	/* MBOX_ABORT */
+	PACKB(2, 2),	/* MBOX_ABORT_DEVICE */
+	PACKB(3, 3),	/* MBOX_ABORT_TARGET */
+	PACKB(2, 2),	/* MBOX_BUS_RESET */
+	PACKB(2, 3),	/* MBOX_STOP_QUEUE */
+	PACKB(2, 3),	/* MBOX_START_QUEUE */
+	PACKB(2, 3),	/* MBOX_SINGLE_STEP_QUEUE */
+	PACKB(2, 3),	/* MBOX_ABORT_QUEUE */
+	PACKB(2, 4),	/* MBOX_GET_DEV_QUEUE_STATUS */
+	PACKB(0, 0),	/* 0x001e */
+	PACKB(1, 3),	/* MBOX_GET_FIRMWARE_STATUS */
+	PACKB(1, 2),	/* MBOX_GET_INIT_SCSI_ID */
+	PACKB(1, 2),	/* MBOX_GET_SELECT_TIMEOUT */
+	PACKB(1, 3),	/* MBOX_GET_RETRY_COUNT	*/
+	PACKB(1, 2),	/* MBOX_GET_TAG_AGE_LIMIT */
+	PACKB(1, 2),	/* MBOX_GET_CLOCK_RATE */
+	PACKB(1, 2),	/* MBOX_GET_ACT_NEG_STATE */
+	PACKB(1, 2),	/* MBOX_GET_ASYNC_DATA_SETUP_TIME */
+	PACKB(1, 3),	/* MBOX_GET_SBUS_PARAMS */
+	PACKB(2, 4),	/* MBOX_GET_TARGET_PARAMS */
+	PACKB(2, 4),	/* MBOX_GET_DEV_QUEUE_PARAMS */
+	PACKB(0, 0),	/* 0x002a */
+	PACKB(0, 0),	/* 0x002b */
+	PACKB(0, 0),	/* 0x002c */
+	PACKB(0, 0),	/* 0x002d */
+	PACKB(0, 0),	/* 0x002e */
+	PACKB(0, 0),	/* 0x002f */
+	PACKB(2, 2),	/* MBOX_SET_INIT_SCSI_ID */
+	PACKB(2, 2),	/* MBOX_SET_SELECT_TIMEOUT */
+	PACKB(3, 3),	/* MBOX_SET_RETRY_COUNT	*/
+	PACKB(2, 2),	/* MBOX_SET_TAG_AGE_LIMIT */
+	PACKB(2, 2),	/* MBOX_SET_CLOCK_RATE */
+	PACKB(2, 2),	/* MBOX_SET_ACTIVE_NEG_STATE */
+	PACKB(2, 2),	/* MBOX_SET_ASYNC_DATA_SETUP_TIME */
+	PACKB(3, 3),	/* MBOX_SET_SBUS_CONTROL_PARAMS */
+	PACKB(4, 4),	/* MBOX_SET_TARGET_PARAMS */
+	PACKB(4, 4),	/* MBOX_SET_DEV_QUEUE_PARAMS */
+	PACKB(0, 0),	/* 0x003a */
+	PACKB(0, 0),	/* 0x003b */
+	PACKB(0, 0),	/* 0x003c */
+	PACKB(0, 0),	/* 0x003d */
+	PACKB(0, 0),	/* 0x003e */
+	PACKB(0, 0),	/* 0x003f */
+	PACKB(0, 0),	/* 0x0040 */
+	PACKB(0, 0),	/* 0x0041 */
+	PACKB(0, 0)	/* 0x0042 */
+};
+
+#define MAX_MBOX_COMMAND	(sizeof(mbox_param)/sizeof(u_short))
+
+/* queue length's _must_ be power of two: */
+#define QUEUE_DEPTH(in, out, ql)	((in - out) & (ql))
+#define REQ_QUEUE_DEPTH(in, out)	QUEUE_DEPTH(in, out, 		     \
+						    QLOGICISP_REQ_QUEUE_LEN)
+#define RES_QUEUE_DEPTH(in, out)	QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
+
+static struct proc_dir_entry proc_scsi_qlogicpti = {
+	PROC_SCSI_QLOGICPTI, 7, "qlogicpti",
+	S_IFDIR | S_IRUGO | S_IXUGO, 2
+};
+
+static inline void qlogicpti_enable_irqs(struct qlogicpti_regs *qregs)
+{
+	qregs->sbus_ctrl = SBUS_CTRL_ERIRQ | SBUS_CTRL_GENAB;
+}
+
+
+static inline void qlogicpti_disable_irqs(struct qlogicpti_regs *qregs)
+{
+	qregs->sbus_ctrl = 0;
+}
+
+static inline void set_sbus_cfg1(struct qlogicpti_regs *qregs, unsigned char bursts)
+{
+	if(bursts & DMA_BURST32) {
+		qregs->sbus_cfg1 = (SBUS_CFG1_BENAB | SBUS_CFG1_B32);
+	} else if(bursts & DMA_BURST16) {
+		qregs->sbus_cfg1 = (SBUS_CFG1_BENAB | SBUS_CFG1_B16);
+	} else if(bursts & DMA_BURST8) {
+		qregs->sbus_cfg1 = (SBUS_CFG1_BENAB | SBUS_CFG1_B8);
+	} else {
+		qregs->sbus_cfg1 = 0; /* No sbus bursts for you... */
+	}
+}
+
+static int qlogicpti_mbox_command(struct qlogicpti *qpti, u_short param[], int force)
+{
+	struct qlogicpti_regs *qregs = qpti->qregs;
+	int loop_count;
+
+	if(mbox_param[param[0]] == 0)
+		return 1;
+
+	loop_count = DEFAULT_LOOP_COUNT;
+	while(--loop_count && (qregs->hcctrl & HCCTRL_HIRQ))
+		barrier();
+	if(!loop_count)
+		printk(KERN_EMERG "qlogicpti: mbox_command loop timeout #1\n");
+
+	switch(mbox_param[param[0]] >> 4) {
+	case 6: qregs->mbox5 = param[5];
+	case 5: qregs->mbox4 = param[4];
+	case 4: qregs->mbox3 = param[3];
+	case 3: qregs->mbox2 = param[2];
+	case 2: qregs->mbox1 = param[1];
+	case 1: qregs->mbox0 = param[0];
+	}
+
+	qregs->hcctrl |= HCCTRL_SHIRQ;
+
+	loop_count = DEFAULT_LOOP_COUNT;
+	while(--loop_count && !(qregs->sbus_semaphore & SBUS_SEMAPHORE_LCK))
+		udelay(20);
+	if(!loop_count)
+		printk(KERN_EMERG "qlogicpti: mbox_command loop timeout #2\n");
+
+	loop_count = DEFAULT_LOOP_COUNT;
+	while(--loop_count && (qregs->mbox0 == 0x04))
+		udelay(20);
+	if(!loop_count)
+		printk(KERN_EMERG "qlogicpti: mbox_command loop timeout #3\n");
+
+	if(force) {
+		qregs->hcctrl = HCCTRL_CRIRQ;
+	} else {
+		if((qregs->mbox5 - qpti->res_out_ptr) == 0)
+			qregs->hcctrl = HCCTRL_CRIRQ;
+	}
+
+	switch(mbox_param[param[0]] & 0xf) {
+	case 6: param[5] = qregs->mbox5;
+	case 5: param[4] = qregs->mbox4;
+	case 4: param[3] = qregs->mbox3;
+	case 3: param[2] = qregs->mbox2;
+	case 2: param[1] = qregs->mbox1;
+	case 1: param[0] = qregs->mbox0;
+	}
+
+	qregs->sbus_semaphore &= ~(SBUS_SEMAPHORE_LCK);
+	return 0;
+}
+
+static int qlogicpti_reset_hardware(struct Scsi_Host *host)
+{
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+	struct qlogicpti_regs *qregs = qpti->qregs;
+	u_short param[6];
+	int loop_count, i;
+	unsigned long flags;
+
+	save_flags(flags); cli();
+
+	qregs->hcctrl = HCCTRL_PAUSE;
+
+	/* Only reset the scsi bus if it is not free. */
+	if(qregs->cpu_pctrl & CPU_PCTRL_BSY) {
+		qregs->cpu_oride = CPU_ORIDE_RMOD;
+		qregs->cpu_cmd = CPU_CMD_BRESET;
+		udelay(400);
+	}
+
+	qregs->sbus_ctrl = SBUS_CTRL_RESET;
+	qregs->cmd_dma_ctrl = (DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ);
+	qregs->data_dma_ctrl = (DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ);
+
+	loop_count = DEFAULT_LOOP_COUNT;
+	while(--loop_count && ((qregs->mbox0 & 0xff) == 0x04))
+		udelay(20);
+	if(!loop_count)
+		printk(KERN_EMERG "qlogicpti: reset_hardware loop timeout\n");
+
+	qregs->hcctrl = HCCTRL_PAUSE;
+	set_sbus_cfg1(qregs, qpti->bursts);
+	qlogicpti_enable_irqs(qregs);
+
+	if(qregs->risc_psr & RISC_PSR_ULTRA) {
+		qpti->ultra = 1;
+		qregs->risc_mtreg = (RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA);
+	} else {
+		qpti->ultra = 0;
+		qregs->risc_mtreg = (RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT);
+	}
+
+	/* Release the RISC processor. */
+	qregs->hcctrl = HCCTRL_REL;
+
+	/* Get RISC to start executing the firmware code. */
+	param[0] = MBOX_EXEC_FIRMWARE;
+	param[1] = risc_code_addr01;
+	if(qlogicpti_mbox_command(qpti, param, 1)) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot execute ISP firmware.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	/* Set initiator scsi ID. */
+	param[0] = MBOX_SET_INIT_SCSI_ID;
+	param[1] = qpti->host_param.initiator_scsi_id;
+	if(qlogicpti_mbox_command(qpti, param, 1) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot set initiator SCSI ID.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	/* Initialize state of the queues, both hw and sw. */
+	qpti->req_in_ptr = qpti->res_out_ptr = 0;
+
+	param[0] = MBOX_INIT_RES_QUEUE;
+	param[1] = RES_QUEUE_LEN + 1;
+	param[2] = (u_short) (qpti->res_dvma >> 16);
+	param[3] = (u_short) (qpti->res_dvma & 0xffff);
+	param[4] = param[5] = 0;
+	if(qlogicpti_mbox_command(qpti, param, 1)) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot init response queue.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	param[0] = MBOX_INIT_REQ_QUEUE;
+	param[1] = QLOGICISP_REQ_QUEUE_LEN + 1;
+	param[2] = (u_short) (qpti->req_dvma >> 16);
+	param[3] = (u_short) (qpti->req_dvma & 0xffff);
+	param[4] = param[5] = 0;
+	if(qlogicpti_mbox_command(qpti, param, 1)) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot init request queue.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	param[0] = MBOX_SET_RETRY_COUNT;
+	param[1] = qpti->host_param.retry_count;
+	param[2] = qpti->host_param.retry_delay;
+	qlogicpti_mbox_command(qpti, param, 0);
+
+	param[0] = MBOX_SET_TAG_AGE_LIMIT;
+	param[1] = qpti->host_param.tag_aging;
+	qlogicpti_mbox_command(qpti, param, 0);
+
+	for(i = 0; i < MAX_TARGETS; i++) {
+		param[0] = MBOX_GET_DEV_QUEUE_PARAMS;
+		param[1] = (i << 8);
+		qlogicpti_mbox_command(qpti, param, 0);
+	}
+
+	param[0] = MBOX_GET_FIRMWARE_STATUS;
+	qlogicpti_mbox_command(qpti, param, 0);
+
+	param[0] = MBOX_SET_SELECT_TIMEOUT;
+	param[1] = qpti->host_param.selection_timeout;
+	qlogicpti_mbox_command(qpti, param, 0);
+
+	for(i = 0; i < MAX_TARGETS; i++) {
+		param[0] = MBOX_SET_TARGET_PARAMS;
+		param[1] = (i << 8);
+		param[2] = (qpti->dev_param[i].device_flags << 8);
+		param[3] = (qpti->dev_param[i].synchronous_offset << 8) |
+			qpti->dev_param[i].synchronous_period;
+		qlogicpti_mbox_command(qpti, param, 0);
+	}
+
+	restore_flags(flags);
+	return 0;
+}
+
+#define PTI_RESET_LIMIT 400
+
+__initfunc(static int qlogicpti_load_firmware(struct qlogicpti *qpti))
+{
+	struct qlogicpti_regs *qregs = qpti->qregs;
+	unsigned short csum = 0;
+	unsigned short param[6];
+	unsigned long flags;
+#ifndef MODULE
+	unsigned long dvma_addr;
+#endif
+	int i, timeout;
+
+	save_flags(flags); cli();
+
+	/* Verify the checksum twice, one before loading it, and once
+	 * afterwards via the mailbox commands.
+	 */
+	for(i = 0; i < risc_code_length01; i++)
+		csum += risc_code01[i];
+	if(csum) {
+		printk(KERN_EMERG "qlogicpti%d: AIeee, firmware checksum failed!",
+		       qpti->qpti_id);
+		return 1;
+	}		
+	qregs->sbus_ctrl = SBUS_CTRL_RESET;
+	qregs->cmd_dma_ctrl = (DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ);
+	qregs->data_dma_ctrl = (DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ);
+	timeout = PTI_RESET_LIMIT;
+	while(--timeout && (qregs->sbus_ctrl & SBUS_CTRL_RESET))
+		udelay(20);
+	if(!timeout) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot reset the ISP.", qpti->qpti_id);
+		return 1;
+	}
+
+	qregs->hcctrl = HCCTRL_RESET;
+	udelay(1000);
+
+	qregs->sbus_ctrl = (SBUS_CTRL_GENAB | SBUS_CTRL_ERIRQ);
+	set_sbus_cfg1(qregs, qpti->bursts);
+	qregs->sbus_semaphore = 0;
+
+	if(qregs->risc_psr & RISC_PSR_ULTRA) {
+		qpti->ultra = 1;
+		qregs->risc_mtreg = (RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA);
+	} else {
+		qpti->ultra = 0;
+		qregs->risc_mtreg = (RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT);
+	}
+
+	qregs->hcctrl = HCCTRL_REL;
+
+	/* Pin lines are only stable while RISC is paused. */
+	qregs->hcctrl = HCCTRL_PAUSE;
+	if(qregs->cpu_pdiff & CPU_PDIFF_MODE)
+		qpti->differential = 1;
+	else
+		qpti->differential = 0;
+	qregs->hcctrl = HCCTRL_REL;
+
+	/* XXX Talk to PTI engineer about the following, ISP always
+	 * XXX returns 0x4001 return status for stop firmware command,
+	 * XXX documentation claims this means the cmd is unsupported
+	 * XXX on this ISP.  I think something fishy is going on.
+	 */
+	param[0] = MBOX_STOP_FIRMWARE;
+	param[1] = param[2] = param[3] = param[4] = param[5] = 0;
+	if(qlogicpti_mbox_command(qpti, param, 1)) {
+		printk(KERN_EMERG "qlogicpti%d: Cannot stop firmware for reload.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}		
+
+	/* Load the firmware. */
+#ifndef MODULE
+	/* XXX THIS SHIT DOES NOT WORK ON ULTRA... FIXME -DaveM */
+	dvma_addr = (unsigned long) mmu_lockarea((char *)&risc_code01[0],
+						 (sizeof(u_short) * risc_code_length01));
+	param[0] = MBOX_LOAD_RAM;
+	param[1] = risc_code_addr01;
+	param[2] = (dvma_addr >> 16);
+	param[3] = (dvma_addr & 0xffff);
+	param[4] = (sizeof(u_short) * risc_code_length01);
+	if(qlogicpti_mbox_command(qpti, param, 1) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicpti%d: Firmware dload failed, I'm bolixed!\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+	/* XXX THIS SHIT DOES NOT WORK ON ULTRA... FIXME -DaveM */
+	mmu_unlockarea((char *)dvma_addr, (sizeof(u_short) * risc_code_length01));
+#else
+	for(i = 0; i < risc_code_length01; i++) {
+		param[0] = MBOX_WRITE_RAM_WORD;
+		param[1] = risc_code_addr01 + i;
+		param[2] = risc_code01[i];
+		if(qlogicpti_mbox_command(qpti, param, 1) ||
+		   param[0] != MBOX_COMMAND_COMPLETE) {
+			printk("qlogicpti%d: Firmware dload failed, I'm bolixed!\n",
+			       qpti->qpti_id);
+			restore_flags(flags);
+			return 1;
+		}
+	}
+#endif
+
+	/* Reset the ISP again. */
+	qregs->hcctrl = HCCTRL_RESET;
+	udelay(1000);
+
+	qlogicpti_enable_irqs(qregs);
+	qregs->sbus_semaphore = 0;
+	qregs->hcctrl = HCCTRL_REL;
+
+	/* Ask ISP to verify the checksum of the new code. */
+	param[0] = MBOX_VERIFY_CHECKSUM;
+	param[1] = risc_code_addr01;
+	if(qlogicpti_mbox_command(qpti, param, 1) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicpti%d: New firmware csum failure!\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	/* Start using newly downloaded firmware. */
+	param[0] = MBOX_EXEC_FIRMWARE;
+	param[1] = risc_code_addr01;
+	qlogicpti_mbox_command(qpti, param, 1);
+
+	param[0] = MBOX_ABOUT_FIRMWARE;
+	if(qlogicpti_mbox_command(qpti, param, 1) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicpti%d: AboutFirmware cmd fails.\n",
+		       qpti->qpti_id);
+		restore_flags(flags);
+		return 1;
+	}
+
+	/* Snag the major and minor revisions from the result. */
+	qpti->fware_majrev = param[1];
+	qpti->fware_minrev = param[2];
+
+	/* Load scsi initiator ID and interrupt level into sbus static ram. */
+	param[0] = MBOX_WRITE_RAM_WORD;
+	param[1] = 0xff80;
+	param[2] = (unsigned short) qpti->scsi_id;
+	qlogicpti_mbox_command(qpti, param, 1);
+
+	param[0] = MBOX_WRITE_RAM_WORD;
+	param[1] = 0xff00;
+	param[2] = (unsigned short) 3;
+	qlogicpti_mbox_command(qpti, param, 1);
+
+	restore_flags(flags);
+	return 0;
+}
+
+static int qlogicpti_verify_tmon(struct qlogicpti *qpti)
+{
+	int curstat = *qpti->sreg;
+
+	curstat &= 0xf0;
+	if(!(curstat & SREG_FUSE) && (qpti->swsreg & SREG_FUSE))
+		printk("qlogicpti%d: Fuse returned to normal state.\n", qpti->qpti_id);
+	if(!(curstat & SREG_TPOWER) && (qpti->swsreg & SREG_TPOWER))
+		printk("qlogicpti%d: termpwr back to normal state.\n", qpti->qpti_id);
+	if(curstat != qpti->swsreg) {
+		int error = 0;
+		if(curstat & SREG_FUSE) {
+			error++;
+			printk("qlogicpti%d: Fuse is open!\n", qpti->qpti_id);
+		}
+		if(curstat & SREG_TPOWER) {
+			error++;
+			printk("qlogicpti%d: termpwr failure\n", qpti->qpti_id);
+		}
+		if(qpti->differential &&
+		   (curstat & SREG_DSENSE) != SREG_DSENSE) {
+			error++;
+			printk("qlogicpti%d: You have a single ended device on a "
+			       "differential bus!  Please fix!\n", qpti->qpti_id);
+		}
+		qpti->swsreg = curstat;
+		return error;
+	}
+	return 0;
+}
+
+static inline void qlogicpti_set_hostdev_defaults(struct qlogicpti *qpti)
+{
+	int i;
+
+	qpti->host_param.initiator_scsi_id = qpti->scsi_id;
+	qpti->host_param.bus_reset_delay = 3;
+	qpti->host_param.retry_count = 0;
+	qpti->host_param.retry_delay = 5;
+	qpti->host_param.async_data_setup_time = 3;
+	qpti->host_param.req_ack_active_negation = 1;
+	qpti->host_param.data_line_active_negation = 1;
+	qpti->host_param.data_dma_burst_enable = 1;
+	qpti->host_param.command_dma_burst_enable = 1;
+	qpti->host_param.tag_aging = 8;
+	qpti->host_param.selection_timeout = 250;
+	qpti->host_param.max_queue_depth = 256;
+
+	for(i = 0; i < MAX_TARGETS; i++) {
+		qpti->dev_param[i].device_flags = 0xf9;
+		qpti->dev_param[i].execution_throttle = 16;
+		qpti->dev_param[i].synchronous_period = 16;
+		qpti->dev_param[i].synchronous_offset = 12;
+		qpti->dev_param[i].device_enable = 1;
+	}
+}
+
+static void qlogicpti_intr_handler(int irq, void *dev_id, struct pt_regs *regs);
+
+/* Detect all PTI Qlogic ISP's in the machine. */
+__initfunc(int qlogicpti_detect(Scsi_Host_Template *tpnt))
+{
+	struct qlogicpti *qpti, *qlink;
+	struct Scsi_Host *qpti_host;
+	struct linux_sbus *sbus;
+	struct linux_sbus_device *qpti_dev, *sbdev_iter;
+	struct qlogicpti_regs *qregs;
+	volatile unsigned char *sreg;
+	unsigned char bsizes, bsizes_more;
+	int nqptis = 0, nqptis_in_use = 0;
+	int qpti_node;
+
+	tpnt->proc_dir = &proc_scsi_qlogicpti;
+	qptichain = 0;
+	if(!SBus_chain)
+		panic("No SBUS in qlogicpti_detect()");
+	for_each_sbus(sbus) {
+		for_each_sbusdev(sbdev_iter, sbus) {
+			qpti_dev = sbdev_iter;
+
+			/* Is this a red snapper? */
+			if(strcmp(qpti_dev->prom_name, "ptisp") &&
+			   strcmp(qpti_dev->prom_name, "PTI,ptisp"))
+				continue;
+
+			/* Yep, register and allocate software state. */
+			qpti_host = scsi_register(tpnt, sizeof(struct qlogicpti));
+			if(!qpti_host)
+				panic("Cannot register PTI Qlogic ISP SCSI host");
+			qpti = (struct qlogicpti *) qpti_host->hostdata;
+			if(!qpti)
+				panic("No qpti in hostdata");
+
+			/* We are wide capable, 16 targets. */
+			qpti_host->max_id = MAX_TARGETS;
+
+			/* Setup back pointers and misc. state. */
+			qpti->qhost = qpti_host;
+			qpti->qdev = qpti_dev;
+			qpti->qpti_id = nqptis++;
+
+			/* Insert this one into the global interrupt service chain. */
+			if(qptichain) {
+				qlink = qptichain;
+				while(qlink->next) qlink = qlink->next;
+				qlink->next = qpti;
+			} else {
+				qptichain = qpti;
+			}
+			qpti->next = 0;
+
+			/* More misc. prom information. */
+			qpti_node = qpti_dev->prom_node;
+			prom_getstring(qpti_node, "name", qpti->prom_name,
+				       sizeof(qpti->prom_name));
+			qpti->prom_node = qpti_node;
+
+			/* Setup the reg property for this device. */
+			prom_apply_sbus_ranges(qpti->qdev->my_bus,
+					       qpti->qdev->reg_addrs,
+					       1, qpti->qdev);
+
+			/* Map in Qlogic,ISP regs and the PTI status reg. */
+			qpti->qregs = qregs = (struct qlogicpti_regs *)
+				sparc_alloc_io(qpti->qdev->reg_addrs[0].phys_addr, 0,
+					       qpti->qdev->reg_addrs[0].reg_size,
+					       "PTI Qlogic/ISP Registers",
+					       qpti->qdev->reg_addrs[0].which_io, 0x0);
+			if(!qregs)
+				panic("PTI Qlogic/ISP registers unmappable");
+
+			/* Map this one read only. */
+			qpti->sreg = sreg = (volatile unsigned char *)
+				sparc_alloc_io((qpti->qdev->reg_addrs[0].phys_addr +
+					       (16 * PAGE_SIZE)), 0,
+					       sizeof(unsigned char),
+					       "PTI Qlogic/ISP Status Reg",
+					       qpti->qdev->reg_addrs[0].which_io, 1);
+			if(!sreg)
+				panic("PTI Qlogic/ISP status reg unmappable");
+			qpti->swsreg = 0;
+
+			qpti_host->base = (unsigned char *)qregs;
+			qpti_host->io_port = (unsigned int) qregs;
+			qpti_host->n_io_port = (unsigned char)
+				qpti->qdev->reg_addrs[0].reg_size;
+
+			qpti_host->irq = qpti->irq = qpti->qdev->irqs[0].pri;
+
+			/* Allocate the irq only if necessary. */
+			for_each_qlogicpti(qlink) {
+				if((qlink != qpti) && (qpti->irq == qlink->irq)) {
+					goto qpti_irq_acquired; /* BASIC rulez */
+				}
+			}
+			if(request_irq(qpti->qhost->irq, qlogicpti_intr_handler,
+				       SA_SHIRQ, "PTI Qlogic/ISP SCSI", NULL)) {
+				printk("Cannot acquire PTI Qlogic/ISP irq line\n");
+				/* XXX Unmap regs, unregister scsi host, free things. */
+				continue;
+			}
+qpti_irq_acquired:
+			printk("qpti%d: IRQ %d ", qpti->qpti_id, qpti->qhost->irq);
+
+			/* Figure out our scsi ID on the bus */
+			qpti->scsi_id = prom_getintdefault(qpti->prom_node,
+							   "initiator-id",
+							   -1);
+			if(qpti->scsi_id == -1)
+				qpti->scsi_id = prom_getintdefault(qpti->prom_node,
+								   "scsi-initiator-id",
+								   -1);
+			if(qpti->scsi_id == -1)
+				qpti->scsi_id =
+					prom_getintdefault(qpti->qdev->my_bus->prom_node,
+							   "scsi-initiator-id", 7);
+			qpti->qhost->this_id = qpti->scsi_id;
+			printk("SCSI ID %d ", qpti->scsi_id);
+
+			/* Check for what the best SBUS burst we can use happens
+			 * to be on this machine.
+			 */
+			bsizes = prom_getintdefault(qpti->prom_node,"burst-sizes",0xff);
+			bsizes &= 0xff;
+			bsizes_more = prom_getintdefault(qpti->qdev->my_bus->prom_node,
+							 "burst-sizes", 0xff);
+			if(bsizes_more != 0xff)
+				bsizes &= bsizes_more;
+			if(bsizes == 0xff || (bsizes & DMA_BURST16)==0 ||
+			   (bsizes & DMA_BURST32) == 0)
+				bsizes = (DMA_BURST32 - 1);
+			qpti->bursts = bsizes;
+
+			/* The request and response queues must each be aligned
+			 * on a page boundry.
+			 */
+
+#define QSIZE(entries)	(((entries) + 1) * QUEUE_ENTRY_LEN)
+
+			qpti->res_cpu = sparc_dvma_malloc(QSIZE(RES_QUEUE_LEN),
+							  "PTISP Response Queue",
+							  &qpti->res_dvma);
+			qpti->req_cpu = sparc_dvma_malloc(QSIZE(QLOGICISP_REQ_QUEUE_LEN),
+							  "PTISP Request Queue",
+							  &qpti->req_dvma);
+
+#undef QSIZE
+
+
+			/* Set adapter and per-device default values. */
+			qlogicpti_set_hostdev_defaults(qpti);
+
+			/* Load the firmware. */
+			if(qlogicpti_load_firmware(qpti))
+				panic("PTI Qlogic/ISP firmware load failed");
+
+			/* Check the PTI status reg. */
+			if(qlogicpti_verify_tmon(qpti))
+				panic("PTI Qlogic/ISP tmon verification failed");
+
+			/* Reset the ISP and init res/req queues. */
+			if(qlogicpti_reset_hardware(qpti_host))
+				panic("PTI Qlogic/ISP cannot be reset");
+
+			printk("(Firmware v%d.%d) [%s Wide, using %s interface]\n",
+			       qpti->fware_majrev, qpti->fware_minrev,
+			       (qpti->ultra ? "Ultra" : "Fast"),
+			       (qpti->differential ? "differential" : "single ended"));
+
+			nqptis_in_use++;
+		}
+	}
+	printk("QPTI: Total of %d PTI Qlogic/ISP hosts found, %d actually in use.\n",
+	       nqptis, nqptis_in_use);
+	qptis_running = nqptis_in_use;
+	return nqptis;
+}
+
+int qlogicpti_release(struct Scsi_Host *host)
+{
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+	struct qlogicpti_regs *qregs = qpti->qregs;
+
+	/* Shut up the card. */
+	qregs->sbus_ctrl = 0;
+
+	/* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
+	free_irq(host->irq, NULL);
+	unmapioaddr((unsigned long)qregs);
+	unmapioaddr((unsigned long)qpti->sreg);
+
+	return 0;
+}
+
+const char *qlogicpti_info(struct Scsi_Host *host)
+{
+	static char buf[80];
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+
+	sprintf(buf, "PTI Qlogic,ISP SBUS SCSI irq %d regs at %08lx",
+		host->irq, (unsigned long) qpti->qregs);
+	return buf;
+}
+
+/* I am a certified frobtronicist. */
+static inline void marker_frob(struct Command_Entry *cmd)
+{
+	struct Marker_Entry *marker = (struct Marker_Entry *) cmd;
+
+	memset(marker, 0, sizeof(struct Marker_Entry));
+	marker->hdr.entry_cnt = 1;
+	marker->hdr.entry_type = ENTRY_MARKER;
+	marker->modifier = SYNC_ALL;
+	marker->rsvd = 0;
+}
+
+static inline void cmd_frob(struct Command_Entry *cmd, Scsi_Cmnd *Cmnd,
+			    struct qlogicpti *qpti)
+{
+	memset(cmd, 0, sizeof(struct Command_Entry));
+	cmd->hdr.entry_cnt = 1;
+	cmd->hdr.entry_type = ENTRY_COMMAND;
+	cmd->handle = (u_int) Cmnd;          /* magic mushroom */
+	cmd->target_id = Cmnd->target;
+	cmd->target_lun = Cmnd->lun;
+	cmd->cdb_length = Cmnd->cmd_len;
+	cmd->control_flags = 0;
+	if(Cmnd->device->tagged_supported) {
+		if(qpti->cmd_count[Cmnd->target] == 0)
+			qpti->tag_ages[Cmnd->target] = jiffies;
+		if((jiffies - qpti->tag_ages[Cmnd->target]) > (5*HZ)) {
+			cmd->control_flags = CFLAG_ORDERED_TAG;
+			qpti->tag_ages[Cmnd->target] = jiffies;
+		} else
+			cmd->control_flags = CFLAG_SIMPLE_TAG;
+	}
+	if((Cmnd->cmnd[0] == WRITE_6) ||
+	   (Cmnd->cmnd[0] == WRITE_10) ||
+	   (Cmnd->cmnd[0] == WRITE_12))
+		cmd->control_flags |= CFLAG_WRITE;
+	else
+		cmd->control_flags |= CFLAG_READ;
+	cmd->time_out = 30;
+	memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
+}
+
+/* Do it to it baby. */
+static inline u_int load_cmd(Scsi_Cmnd *Cmnd, struct Command_Entry *cmd,
+			     struct qlogicpti *qpti, struct qlogicpti_regs *qregs,
+			     u_int in_ptr, u_int out_ptr)
+{
+	struct dataseg * ds;
+	struct scatterlist *sg;
+	int sg_count = Cmnd->use_sg;
+	int i, n;
+
+	if(sg_count) {
+		mmu_get_scsi_sgl((struct mmu_sglist *)Cmnd->buffer, (Cmnd->use_sg - 1),
+				 qpti->qdev->my_bus);
+
+		cmd->segment_cnt = sg_count;
+		sg = (struct scatterlist *) Cmnd->request_buffer;
+		ds = cmd->dataseg;
+
+		/* Fill in first four sg entries: */
+		n = sg_count;
+		if(n > 4)
+			n = 4;
+		for(i = 0; i < n; i++, sg++) {
+			ds[i].d_base = (u_int) sg->dvma_address;
+			ds[i].d_count = (u_int) sg->length;
+		}
+		sg_count -= 4;
+		while(sg_count > 0) {
+			struct Continuation_Entry *cont;
+
+			++cmd->hdr.entry_cnt;
+			cont = (struct Continuation_Entry *) &qpti->req_cpu[in_ptr];
+			in_ptr = NEXT_REQ_PTR(in_ptr);
+			if(in_ptr == out_ptr) {
+				printk(KERN_EMERG "qlogicpti: Unexpected request queue overflow\n");
+				return -1;
+			}
+			cont->hdr.entry_type = ENTRY_CONTINUATION;
+			cont->hdr.entry_cnt = 0;
+			cont->hdr.sys_def_1 = 0;
+			cont->hdr.flags = 0;
+			cont->reserved = 0;
+			ds = cont->dataseg;
+			n = sg_count;
+			if(n > 7)
+				n = 7;
+			for(i = 0; i < n; i++, sg++) {
+				ds[i].d_base = (u_int) sg->dvma_address;
+				ds[i].d_count = (u_int) sg->length;
+			}
+			sg_count -= n;
+		}
+	} else {
+		/* XXX Casts are extremely gross, but with 64-bit cpu addresses
+		 * XXX and 32-bit SBUS DVMA addresses what am I to do? -DaveM
+		 */
+		Cmnd->SCp.ptr = (char *)((unsigned long)
+					 mmu_get_scsi_one((char *)Cmnd->request_buffer,
+							  Cmnd->request_bufflen,
+							  qpti->qdev->my_bus));
+
+		cmd->dataseg[0].d_base = (u_int) Cmnd->SCp.ptr;
+		cmd->dataseg[0].d_count = Cmnd->request_bufflen;
+		cmd->segment_cnt = 1;
+	}
+	qpti->cmd_count[Cmnd->target]++;
+	qregs->mbox4 = in_ptr;
+	qpti->req_in_ptr = in_ptr;
+	return in_ptr;
+}
+
+static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int out_ptr)
+{
+	int num_free = QLOGICISP_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
+	host->can_queue = host->host_busy + num_free;
+	host->sg_tablesize = QLOGICISP_MAX_SG(num_free);
+}
+
+/*
+ * The middle SCSI layer ensures that queuecommand never gets invoked
+ * concurrently with itself or the interrupt handler (though the
+ * interrupt handler may call this routine as part of
+ * request-completion handling).
+ *
+ * "This code must fly." -davem
+ */
+int qlogicpti_queuecommand(Scsi_Cmnd *Cmnd, void (*done)(Scsi_Cmnd *))
+{
+	struct Scsi_Host *host = Cmnd->host;
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+	struct qlogicpti_regs *qregs = qpti->qregs;
+	u_int in_ptr = qpti->req_in_ptr;
+	u_int out_ptr = qregs->mbox4;
+	struct Command_Entry *cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr];
+
+	Cmnd->scsi_done = done;
+	in_ptr = NEXT_REQ_PTR(in_ptr);
+	if(in_ptr == out_ptr) {
+		printk(KERN_EMERG "qlogicpti%d: request queue overflow\n", qpti->qpti_id);
+		return 1;
+	}
+	if(qpti->send_marker) {
+		marker_frob(cmd);
+		qpti->send_marker = 0;
+		if(NEXT_REQ_PTR(in_ptr) == out_ptr) {
+			qregs->mbox4 = in_ptr;
+			qpti->req_in_ptr = in_ptr;
+			printk(KERN_EMERG "qlogicpti%d: request queue overflow\n", qpti->qpti_id);
+			return 1;
+		}
+		cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr];
+		in_ptr = NEXT_REQ_PTR(in_ptr);
+	}
+	cmd_frob(cmd, Cmnd, qpti);
+	if((in_ptr = load_cmd(Cmnd, cmd, qpti, qregs, in_ptr, out_ptr)) == -1)
+		return 1;
+	update_can_queue(host, in_ptr, out_ptr);
+	return 0;
+}
+
+static int qlogicpti_return_status(struct Status_Entry *sts)
+{
+	int host_status = DID_ERROR;
+
+	switch(sts->completion_status) {
+	      case CS_COMPLETE:
+		host_status = DID_OK;
+		break;
+	      case CS_INCOMPLETE:
+		if (!(sts->state_flags & SF_GOT_BUS))
+			host_status = DID_NO_CONNECT;
+		else if (!(sts->state_flags & SF_GOT_TARGET))
+			host_status = DID_BAD_TARGET;
+		else if (!(sts->state_flags & SF_SENT_CDB))
+			host_status = DID_ERROR;
+		else if (!(sts->state_flags & SF_TRANSFERRED_DATA))
+			host_status = DID_ERROR;
+		else if (!(sts->state_flags & SF_GOT_STATUS))
+			host_status = DID_ERROR;
+		else if (!(sts->state_flags & SF_GOT_SENSE))
+			host_status = DID_ERROR;
+		break;
+	      case CS_DMA_ERROR:
+	      case CS_TRANSPORT_ERROR:
+		host_status = DID_ERROR;
+		break;
+	      case CS_RESET_OCCURRED:
+		host_status = DID_RESET;
+		break;
+	      case CS_ABORTED:
+		host_status = DID_ABORT;
+		break;
+	      case CS_TIMEOUT:
+		host_status = DID_TIME_OUT;
+		break;
+	      case CS_DATA_OVERRUN:
+	      case CS_COMMAND_OVERRUN:
+	      case CS_STATUS_OVERRUN:
+	      case CS_BAD_MESSAGE:
+	      case CS_NO_MESSAGE_OUT:
+	      case CS_EXT_ID_FAILED:
+	      case CS_IDE_MSG_FAILED:
+	      case CS_ABORT_MSG_FAILED:
+	      case CS_NOP_MSG_FAILED:
+	      case CS_PARITY_ERROR_MSG_FAILED:
+	      case CS_DEVICE_RESET_MSG_FAILED:
+	      case CS_ID_MSG_FAILED:
+	      case CS_UNEXP_BUS_FREE:
+		host_status = DID_ERROR;
+		break;
+	      case CS_DATA_UNDERRUN:
+		host_status = DID_OK;
+		break;
+	      default:
+		printk(KERN_EMERG "qlogicpti : unknown completion status 0x%04x\n",
+		       sts->completion_status);
+		host_status = DID_ERROR;
+		break;
+	}
+
+	return (sts->scsi_status & STATUS_MASK) | (host_status << 16);
+}
+
+static void qlogicpti_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+	static int running = 0;
+	Scsi_Cmnd *Cmnd;
+	struct Status_Entry *sts;
+	struct qlogicpti *qpti;
+	u_int in_ptr, out_ptr;
+	int again;
+
+	/* It is ok to take irq's on one qpti while the other
+	 * is amidst the processing of a reset.
+	 */
+	running++;
+
+#if 0 /* XXX Investigate why resets cause this with one controller. */
+	if(running > qptis_running)
+		printk("qlogicpti_intr_handler: yieee, recursive interrupt!\n");
+#endif
+
+	/* Handle all ISP interrupts showing */
+repeat:
+	again = 0;
+	for_each_qlogicpti(qpti) {
+		if(qpti->qregs->sbus_stat & SBUS_STAT_RINT) {
+			struct qlogicpti_regs *qregs = qpti->qregs;
+
+			again = 1;
+			in_ptr = qregs->mbox5;
+			qregs->hcctrl = HCCTRL_CRIRQ;
+			if(qregs->sbus_semaphore & SBUS_SEMAPHORE_LCK) {
+				switch(qregs->mbox0) {
+				case ASYNC_SCSI_BUS_RESET:
+				case EXECUTION_TIMEOUT_RESET:
+					qpti->send_marker = 1;
+					break;
+				case INVALID_COMMAND:
+				case HOST_INTERFACE_ERROR:
+				case COMMAND_ERROR:
+				case COMMAND_PARAM_ERROR:
+					break;
+				}
+				qregs->sbus_semaphore = 0;
+			}
+
+			/* This looks like a network driver! */
+			out_ptr = qpti->res_out_ptr;
+			while(out_ptr != in_ptr) {
+				sts = (struct Status_Entry *) &qpti->res_cpu[out_ptr];
+				out_ptr = NEXT_RES_PTR(out_ptr);
+				Cmnd = (Scsi_Cmnd *) sts->handle; /* but_to_virt?!?! */
+				if(sts->completion_status == CS_RESET_OCCURRED ||
+				   sts->completion_status == CS_ABORTED ||
+				   (sts->status_flags & STF_BUS_RESET))
+					qpti->send_marker = 1;
+
+				if(sts->state_flags & SF_GOT_SENSE)
+					memcpy(Cmnd->sense_buffer, sts->req_sense_data,
+					       sizeof(Cmnd->sense_buffer));
+
+				if(sts->hdr.entry_type == ENTRY_STATUS)
+					Cmnd->result = qlogicpti_return_status(sts);
+				else
+					Cmnd->result = DID_ERROR << 16;
+
+				if(Cmnd->use_sg)
+					mmu_release_scsi_sgl((struct mmu_sglist *)
+							     Cmnd->buffer,
+							     Cmnd->use_sg - 1,
+							     qpti->qdev->my_bus);
+				else
+					mmu_release_scsi_one((__u32)Cmnd->SCp.ptr,
+							     Cmnd->request_bufflen,
+							     qpti->qdev->my_bus);
+
+				qpti->cmd_count[Cmnd->target]--;
+				qregs->mbox5 = out_ptr;
+				Cmnd->scsi_done(Cmnd);
+			}
+			qpti->res_out_ptr = out_ptr;
+		}
+	}
+	if(again)
+		goto repeat;
+	running--;
+}
+
+int qlogicpti_abort(Scsi_Cmnd *Cmnd)
+{
+	u_short param[6];
+	struct Scsi_Host *host = Cmnd->host;
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+	int return_status = SCSI_ABORT_SUCCESS;
+
+	printk(KERN_EMERG "qlogicpti : Aborting cmd for tgt[%d] lun[%d]\n",
+	       (int)Cmnd->target, (int)Cmnd->lun);
+	qlogicpti_disable_irqs(qpti->qregs);
+	param[0] = MBOX_ABORT;
+	param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
+	param[2] = ((unsigned int)Cmnd) >> 16;
+	param[3] = ((unsigned int)Cmnd) & 0xffff;
+	if(qlogicpti_mbox_command(qpti, param, 0) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicpti : scsi abort failure: %x\n", param[0]);
+		return_status = SCSI_ABORT_ERROR;
+	}
+	qlogicpti_enable_irqs(qpti->qregs);
+	return return_status;
+}
+
+int qlogicpti_reset(Scsi_Cmnd *Cmnd, unsigned int reset_flags)
+{
+	u_short param[6];
+	struct Scsi_Host *host = Cmnd->host;
+	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
+	int return_status = SCSI_RESET_SUCCESS;
+
+	printk(KERN_EMERG "qlogicpti : Resetting SCSI bus!\n");
+	qlogicpti_disable_irqs(qpti->qregs);
+	param[0] = MBOX_BUS_RESET;
+	param[1] = qpti->host_param.bus_reset_delay;
+	if(qlogicpti_mbox_command(qpti, param, 0) ||
+	   (param[0] != MBOX_COMMAND_COMPLETE)) {
+		printk(KERN_EMERG "qlogicisp : scsi bus reset failure: %x\n", param[0]);
+		return_status = SCSI_RESET_ERROR;
+	}
+	qlogicpti_enable_irqs(qpti->qregs);
+	return return_status;
+}
+
+#ifdef MODULE
+Scsi_Host_Template driver_template = QLOGICPTI;
+
+#include "scsi_module.c"
+#endif /* MODULE */