Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2061 insertions, 0 deletions

diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
new file mode 100644
index 000000000..d9a045f98
--- /dev/null
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -0,0 +1,2061 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 
+ * of PCI-SCSI IO processors.
+ *
+ * Copyright (C) 1999-2001  Gerard Roudier <groudier@free.fr>
+ * Copyright (c) 2003-2005  Matthew Wilcox <matthew@wil.cx>
+ *
+ * This driver is derived from the Linux sym53c8xx driver.
+ * Copyright (C) 1998-2000  Gerard Roudier
+ *
+ * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 
+ * a port of the FreeBSD ncr driver to Linux-1.2.13.
+ *
+ * The original ncr driver has been written for 386bsd and FreeBSD by
+ *         Wolfgang Stanglmeier        <wolf@cologne.de>
+ *         Stefan Esser                <se@mi.Uni-Koeln.de>
+ * Copyright (C) 1994  Wolfgang Stanglmeier
+ *
+ * Other major contributions:
+ *
+ * NVRAM detection and reading.
+ * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
+ *
+ *-----------------------------------------------------------------------------
+ */
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/spinlock.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_transport.h>
+
+#include "sym_glue.h"
+#include "sym_nvram.h"
+
+#define NAME53C		"sym53c"
+#define NAME53C8XX	"sym53c8xx"
+
+struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP;
+unsigned int sym_debug_flags = 0;
+
+static char *excl_string;
+static char *safe_string;
+module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0);
+module_param_named(burst, sym_driver_setup.burst_order, byte, 0);
+module_param_named(led, sym_driver_setup.scsi_led, byte, 0);
+module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0);
+module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0);
+module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0);
+module_param_named(hostid, sym_driver_setup.host_id, byte, 0);
+module_param_named(verb, sym_driver_setup.verbose, byte, 0);
+module_param_named(debug, sym_debug_flags, uint, 0);
+module_param_named(settle, sym_driver_setup.settle_delay, byte, 0);
+module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0);
+module_param_named(excl, excl_string, charp, 0);
+module_param_named(safe, safe_string, charp, 0);
+
+MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default");
+MODULE_PARM_DESC(burst, "Maximum burst.  0 to disable, 255 to read from registers");
+MODULE_PARM_DESC(led, "Set to 1 to enable LED support");
+MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3");
+MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole");
+MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error");
+MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters");
+MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive");
+MODULE_PARM_DESC(debug, "Set bits to enable debugging");
+MODULE_PARM_DESC(settle, "Settle delay in seconds.  Default 3");
+MODULE_PARM_DESC(nvram, "Option currently not used");
+MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached");
+MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\"");
+
+MODULE_LICENSE("GPL");
+MODULE_VERSION(SYM_VERSION);
+MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>");
+MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters");
+
+static void sym2_setup_params(void)
+{
+	char *p = excl_string;
+	int xi = 0;
+
+	while (p && (xi < 8)) {
+		char *next_p;
+		int val = (int) simple_strtoul(p, &next_p, 0);
+		sym_driver_setup.excludes[xi++] = val;
+		p = next_p;
+	}
+
+	if (safe_string) {
+		if (*safe_string == 'y') {
+			sym_driver_setup.max_tag = 0;
+			sym_driver_setup.burst_order = 0;
+			sym_driver_setup.scsi_led = 0;
+			sym_driver_setup.scsi_diff = 1;
+			sym_driver_setup.irq_mode = 0;
+			sym_driver_setup.scsi_bus_check = 2;
+			sym_driver_setup.host_id = 7;
+			sym_driver_setup.verbose = 2;
+			sym_driver_setup.settle_delay = 10;
+			sym_driver_setup.use_nvram = 1;
+		} else if (*safe_string != 'n') {
+			printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s"
+					" passed to safe option", safe_string);
+		}
+	}
+}
+
+static struct scsi_transport_template *sym2_transport_template = NULL;
+
+/*
+ *  Driver private area in the SCSI command structure.
+ */
+struct sym_ucmd {		/* Override the SCSI pointer structure */
+	struct completion *eh_done;		/* SCSI error handling */
+};
+
+#define SYM_UCMD_PTR(cmd)  ((struct sym_ucmd *)(&(cmd)->SCp))
+#define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host)
+
+/*
+ *  Complete a pending CAM CCB.
+ */
+void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd)
+{
+	struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd);
+	BUILD_BUG_ON(sizeof(struct scsi_pointer) < sizeof(struct sym_ucmd));
+
+	if (ucmd->eh_done)
+		complete(ucmd->eh_done);
+
+	scsi_dma_unmap(cmd);
+	cmd->scsi_done(cmd);
+}
+
+/*
+ *  Tell the SCSI layer about a BUS RESET.
+ */
+void sym_xpt_async_bus_reset(struct sym_hcb *np)
+{
+	printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np));
+	np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ;
+	np->s.settle_time_valid = 1;
+	if (sym_verbose >= 2)
+		printf_info("%s: command processing suspended for %d seconds\n",
+			    sym_name(np), sym_driver_setup.settle_delay);
+}
+
+/*
+ *  Choose the more appropriate CAM status if 
+ *  the IO encountered an extended error.
+ */
+static int sym_xerr_cam_status(int cam_status, int x_status)
+{
+	if (x_status) {
+		if (x_status & XE_PARITY_ERR)
+			cam_status = DID_PARITY;
+		else
+			cam_status = DID_ERROR;
+	}
+	return cam_status;
+}
+
+/*
+ *  Build CAM result for a failed or auto-sensed IO.
+ */
+void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid)
+{
+	struct scsi_cmnd *cmd = cp->cmd;
+	u_int cam_status, scsi_status, drv_status;
+
+	drv_status  = 0;
+	cam_status  = DID_OK;
+	scsi_status = cp->ssss_status;
+
+	if (cp->host_flags & HF_SENSE) {
+		scsi_status = cp->sv_scsi_status;
+		resid = cp->sv_resid;
+		if (sym_verbose && cp->sv_xerr_status)
+			sym_print_xerr(cmd, cp->sv_xerr_status);
+		if (cp->host_status == HS_COMPLETE &&
+		    cp->ssss_status == S_GOOD &&
+		    cp->xerr_status == 0) {
+			cam_status = sym_xerr_cam_status(DID_OK,
+							 cp->sv_xerr_status);
+			drv_status = DRIVER_SENSE;
+			/*
+			 *  Bounce back the sense data to user.
+			 */
+			memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+			memcpy(cmd->sense_buffer, cp->sns_bbuf,
+			       min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN));
+#if 0
+			/*
+			 *  If the device reports a UNIT ATTENTION condition 
+			 *  due to a RESET condition, we should consider all 
+			 *  disconnect CCBs for this unit as aborted.
+			 */
+			if (1) {
+				u_char *p;
+				p  = (u_char *) cmd->sense_data;
+				if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29)
+					sym_clear_tasks(np, DID_ABORT,
+							cp->target,cp->lun, -1);
+			}
+#endif
+		} else {
+			/*
+			 * Error return from our internal request sense.  This
+			 * is bad: we must clear the contingent allegiance
+			 * condition otherwise the device will always return
+			 * BUSY.  Use a big stick.
+			 */
+			sym_reset_scsi_target(np, cmd->device->id);
+			cam_status = DID_ERROR;
+		}
+	} else if (cp->host_status == HS_COMPLETE) 	/* Bad SCSI status */
+		cam_status = DID_OK;
+	else if (cp->host_status == HS_SEL_TIMEOUT)	/* Selection timeout */
+		cam_status = DID_NO_CONNECT;
+	else if (cp->host_status == HS_UNEXPECTED)	/* Unexpected BUS FREE*/
+		cam_status = DID_ERROR;
+	else {						/* Extended error */
+		if (sym_verbose) {
+			sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n",
+				cp->host_status, cp->ssss_status,
+				cp->xerr_status);
+		}
+		/*
+		 *  Set the most appropriate value for CAM status.
+		 */
+		cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status);
+	}
+	scsi_set_resid(cmd, resid);
+	cmd->result = (drv_status << 24) | (cam_status << 16) | scsi_status;
+}
+
+static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd)
+{
+	int segment;
+	int use_sg;
+
+	cp->data_len = 0;
+
+	use_sg = scsi_dma_map(cmd);
+	if (use_sg > 0) {
+		struct scatterlist *sg;
+		struct sym_tcb *tp = &np->target[cp->target];
+		struct sym_tblmove *data;
+
+		if (use_sg > SYM_CONF_MAX_SG) {
+			scsi_dma_unmap(cmd);
+			return -1;
+		}
+
+		data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg];
+
+		scsi_for_each_sg(cmd, sg, use_sg, segment) {
+			dma_addr_t baddr = sg_dma_address(sg);
+			unsigned int len = sg_dma_len(sg);
+
+			if ((len & 1) && (tp->head.wval & EWS)) {
+				len++;
+				cp->odd_byte_adjustment++;
+			}
+
+			sym_build_sge(np, &data[segment], baddr, len);
+			cp->data_len += len;
+		}
+	} else {
+		segment = -2;
+	}
+
+	return segment;
+}
+
+/*
+ *  Queue a SCSI command.
+ */
+static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd)
+{
+	struct scsi_device *sdev = cmd->device;
+	struct sym_tcb *tp;
+	struct sym_lcb *lp;
+	struct sym_ccb *cp;
+	int	order;
+
+	/*
+	 *  Retrieve the target descriptor.
+	 */
+	tp = &np->target[sdev->id];
+
+	/*
+	 *  Select tagged/untagged.
+	 */
+	lp = sym_lp(tp, sdev->lun);
+	order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0;
+
+	/*
+	 *  Queue the SCSI IO.
+	 */
+	cp = sym_get_ccb(np, cmd, order);
+	if (!cp)
+		return 1;	/* Means resource shortage */
+	sym_queue_scsiio(np, cmd, cp);
+	return 0;
+}
+
+/*
+ *  Setup buffers and pointers that address the CDB.
+ */
+static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp)
+{
+	memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len);
+
+	cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]);
+	cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len);
+
+	return 0;
+}
+
+/*
+ *  Setup pointers that address the data and start the I/O.
+ */
+int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp)
+{
+	u32 lastp, goalp;
+	int dir;
+
+	/*
+	 *  Build the CDB.
+	 */
+	if (sym_setup_cdb(np, cmd, cp))
+		goto out_abort;
+
+	/*
+	 *  No direction means no data.
+	 */
+	dir = cmd->sc_data_direction;
+	if (dir != DMA_NONE) {
+		cp->segments = sym_scatter(np, cp, cmd);
+		if (cp->segments < 0) {
+			sym_set_cam_status(cmd, DID_ERROR);
+			goto out_abort;
+		}
+
+		/*
+		 *  No segments means no data.
+		 */
+		if (!cp->segments)
+			dir = DMA_NONE;
+	} else {
+		cp->data_len = 0;
+		cp->segments = 0;
+	}
+
+	/*
+	 *  Set the data pointer.
+	 */
+	switch (dir) {
+	case DMA_BIDIRECTIONAL:
+		scmd_printk(KERN_INFO, cmd, "got DMA_BIDIRECTIONAL command");
+		sym_set_cam_status(cmd, DID_ERROR);
+		goto out_abort;
+	case DMA_TO_DEVICE:
+		goalp = SCRIPTA_BA(np, data_out2) + 8;
+		lastp = goalp - 8 - (cp->segments * (2*4));
+		break;
+	case DMA_FROM_DEVICE:
+		cp->host_flags |= HF_DATA_IN;
+		goalp = SCRIPTA_BA(np, data_in2) + 8;
+		lastp = goalp - 8 - (cp->segments * (2*4));
+		break;
+	case DMA_NONE:
+	default:
+		lastp = goalp = SCRIPTB_BA(np, no_data);
+		break;
+	}
+
+	/*
+	 *  Set all pointers values needed by SCRIPTS.
+	 */
+	cp->phys.head.lastp = cpu_to_scr(lastp);
+	cp->phys.head.savep = cpu_to_scr(lastp);
+	cp->startp	    = cp->phys.head.savep;
+	cp->goalp	    = cpu_to_scr(goalp);
+
+	/*
+	 *  When `#ifed 1', the code below makes the driver 
+	 *  panic on the first attempt to write to a SCSI device.
+	 *  It is the first test we want to do after a driver 
+	 *  change that does not seem obviously safe. :)
+	 */
+#if 0
+	switch (cp->cdb_buf[0]) {
+	case 0x0A: case 0x2A: case 0xAA:
+		panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n");
+		break;
+	default:
+		break;
+	}
+#endif
+
+	/*
+	 *	activate this job.
+	 */
+	sym_put_start_queue(np, cp);
+	return 0;
+
+out_abort:
+	sym_free_ccb(np, cp);
+	sym_xpt_done(np, cmd);
+	return 0;
+}
+
+
+/*
+ *  timer daemon.
+ *
+ *  Misused to keep the driver running when
+ *  interrupts are not configured correctly.
+ */
+static void sym_timer(struct sym_hcb *np)
+{
+	unsigned long thistime = jiffies;
+
+	/*
+	 *  Restart the timer.
+	 */
+	np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL;
+	add_timer(&np->s.timer);
+
+	/*
+	 *  If we are resetting the ncr, wait for settle_time before 
+	 *  clearing it. Then command processing will be resumed.
+	 */
+	if (np->s.settle_time_valid) {
+		if (time_before_eq(np->s.settle_time, thistime)) {
+			if (sym_verbose >= 2 )
+				printk("%s: command processing resumed\n",
+				       sym_name(np));
+			np->s.settle_time_valid = 0;
+		}
+		return;
+	}
+
+	/*
+	 *	Nothing to do for now, but that may come.
+	 */
+	if (np->s.lasttime + 4*HZ < thistime) {
+		np->s.lasttime = thistime;
+	}
+
+#ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS
+	/*
+	 *  Some way-broken PCI bridges may lead to 
+	 *  completions being lost when the clearing 
+	 *  of the INTFLY flag by the CPU occurs 
+	 *  concurrently with the chip raising this flag.
+	 *  If this ever happen, lost completions will 
+	 * be reaped here.
+	 */
+	sym_wakeup_done(np);
+#endif
+}
+
+
+/*
+ *  PCI BUS error handler.
+ */
+void sym_log_bus_error(struct Scsi_Host *shost)
+{
+	struct sym_data *sym_data = shost_priv(shost);
+	struct pci_dev *pdev = sym_data->pdev;
+	unsigned short pci_sts;
+	pci_read_config_word(pdev, PCI_STATUS, &pci_sts);
+	if (pci_sts & 0xf900) {
+		pci_write_config_word(pdev, PCI_STATUS, pci_sts);
+		shost_printk(KERN_WARNING, shost,
+			"PCI bus error: status = 0x%04x\n", pci_sts & 0xf900);
+	}
+}
+
+/*
+ * queuecommand method.  Entered with the host adapter lock held and
+ * interrupts disabled.
+ */
+static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd,
+					void (*done)(struct scsi_cmnd *))
+{
+	struct sym_hcb *np = SYM_SOFTC_PTR(cmd);
+	struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd);
+	int sts = 0;
+
+	cmd->scsi_done = done;
+	memset(ucp, 0, sizeof(*ucp));
+
+	/*
+	 *  Shorten our settle_time if needed for 
+	 *  this command not to time out.
+	 */
+	if (np->s.settle_time_valid && cmd->request->timeout) {
+		unsigned long tlimit = jiffies + cmd->request->timeout;
+		tlimit -= SYM_CONF_TIMER_INTERVAL*2;
+		if (time_after(np->s.settle_time, tlimit)) {
+			np->s.settle_time = tlimit;
+		}
+	}
+
+	if (np->s.settle_time_valid)
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	sts = sym_queue_command(np, cmd);
+	if (sts)
+		return SCSI_MLQUEUE_HOST_BUSY;
+	return 0;
+}
+
+static DEF_SCSI_QCMD(sym53c8xx_queue_command)
+
+/*
+ *  Linux entry point of the interrupt handler.
+ */
+static irqreturn_t sym53c8xx_intr(int irq, void *dev_id)
+{
+	struct Scsi_Host *shost = dev_id;
+	struct sym_data *sym_data = shost_priv(shost);
+	irqreturn_t result;
+
+	/* Avoid spinloop trying to handle interrupts on frozen device */
+	if (pci_channel_offline(sym_data->pdev))
+		return IRQ_NONE;
+
+	if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("[");
+
+	spin_lock(shost->host_lock);
+	result = sym_interrupt(shost);
+	spin_unlock(shost->host_lock);
+
+	if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n");
+
+	return result;
+}
+
+/*
+ *  Linux entry point of the timer handler
+ */
+static void sym53c8xx_timer(struct timer_list *t)
+{
+	struct sym_hcb *np = from_timer(np, t, s.timer);
+	unsigned long flags;
+
+	spin_lock_irqsave(np->s.host->host_lock, flags);
+	sym_timer(np);
+	spin_unlock_irqrestore(np->s.host->host_lock, flags);
+}
+
+
+/*
+ *  What the eh thread wants us to perform.
+ */
+#define SYM_EH_ABORT		0
+#define SYM_EH_DEVICE_RESET	1
+#define SYM_EH_BUS_RESET	2
+#define SYM_EH_HOST_RESET	3
+
+/*
+ *  Generic method for our eh processing.
+ *  The 'op' argument tells what we have to do.
+ */
+static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd)
+{
+	struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd);
+	struct Scsi_Host *shost = cmd->device->host;
+	struct sym_data *sym_data = shost_priv(shost);
+	struct pci_dev *pdev = sym_data->pdev;
+	struct sym_hcb *np = sym_data->ncb;
+	SYM_QUEHEAD *qp;
+	int cmd_queued = 0;
+	int sts = -1;
+	struct completion eh_done;
+
+	scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname);
+
+	/* We may be in an error condition because the PCI bus
+	 * went down. In this case, we need to wait until the
+	 * PCI bus is reset, the card is reset, and only then
+	 * proceed with the scsi error recovery.  There's no
+	 * point in hurrying; take a leisurely wait.
+	 */
+#define WAIT_FOR_PCI_RECOVERY	35
+	if (pci_channel_offline(pdev)) {
+		int finished_reset = 0;
+		init_completion(&eh_done);
+		spin_lock_irq(shost->host_lock);
+		/* Make sure we didn't race */
+		if (pci_channel_offline(pdev)) {
+			BUG_ON(sym_data->io_reset);
+			sym_data->io_reset = &eh_done;
+		} else {
+			finished_reset = 1;
+		}
+		spin_unlock_irq(shost->host_lock);
+		if (!finished_reset)
+			finished_reset = wait_for_completion_timeout
+						(sym_data->io_reset,
+						WAIT_FOR_PCI_RECOVERY*HZ);
+		spin_lock_irq(shost->host_lock);
+		sym_data->io_reset = NULL;
+		spin_unlock_irq(shost->host_lock);
+		if (!finished_reset)
+			return SCSI_FAILED;
+	}
+
+	spin_lock_irq(shost->host_lock);
+	/* This one is queued in some place -> to wait for completion */
+	FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) {
+		struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq);
+		if (cp->cmd == cmd) {
+			cmd_queued = 1;
+			break;
+		}
+	}
+
+	/* Try to proceed the operation we have been asked for */
+	sts = -1;
+	switch(op) {
+	case SYM_EH_ABORT:
+		sts = sym_abort_scsiio(np, cmd, 1);
+		break;
+	case SYM_EH_DEVICE_RESET:
+		sts = sym_reset_scsi_target(np, cmd->device->id);
+		break;
+	case SYM_EH_BUS_RESET:
+		sym_reset_scsi_bus(np, 1);
+		sts = 0;
+		break;
+	case SYM_EH_HOST_RESET:
+		sym_reset_scsi_bus(np, 0);
+		sym_start_up(shost, 1);
+		sts = 0;
+		break;
+	default:
+		break;
+	}
+
+	/* On error, restore everything and cross fingers :) */
+	if (sts)
+		cmd_queued = 0;
+
+	if (cmd_queued) {
+		init_completion(&eh_done);
+		ucmd->eh_done = &eh_done;
+		spin_unlock_irq(shost->host_lock);
+		if (!wait_for_completion_timeout(&eh_done, 5*HZ)) {
+			ucmd->eh_done = NULL;
+			sts = -2;
+		}
+	} else {
+		spin_unlock_irq(shost->host_lock);
+	}
+
+	dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname,
+			sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed");
+	return sts ? SCSI_FAILED : SCSI_SUCCESS;
+}
+
+
+/*
+ * Error handlers called from the eh thread (one thread per HBA).
+ */
+static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd)
+{
+	return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd);
+}
+
+static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd)
+{
+	return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd);
+}
+
+static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd)
+{
+	return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd);
+}
+
+static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd)
+{
+	return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd);
+}
+
+/*
+ *  Tune device queuing depth, according to various limits.
+ */
+static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags)
+{
+	struct sym_lcb *lp = sym_lp(tp, lun);
+	u_short	oldtags;
+
+	if (!lp)
+		return;
+
+	oldtags = lp->s.reqtags;
+
+	if (reqtags > lp->s.scdev_depth)
+		reqtags = lp->s.scdev_depth;
+
+	lp->s.reqtags     = reqtags;
+
+	if (reqtags != oldtags) {
+		dev_info(&tp->starget->dev,
+		         "tagged command queuing %s, command queue depth %d.\n",
+		          lp->s.reqtags ? "enabled" : "disabled", reqtags);
+	}
+}
+
+static int sym53c8xx_slave_alloc(struct scsi_device *sdev)
+{
+	struct sym_hcb *np = sym_get_hcb(sdev->host);
+	struct sym_tcb *tp = &np->target[sdev->id];
+	struct sym_lcb *lp;
+	unsigned long flags;
+	int error;
+
+	if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN)
+		return -ENXIO;
+
+	spin_lock_irqsave(np->s.host->host_lock, flags);
+
+	/*
+	 * Fail the device init if the device is flagged NOSCAN at BOOT in
+	 * the NVRAM.  This may speed up boot and maintain coherency with
+	 * BIOS device numbering.  Clearing the flag allows the user to
+	 * rescan skipped devices later.  We also return an error for
+	 * devices not flagged for SCAN LUNS in the NVRAM since some single
+	 * lun devices behave badly when asked for a non zero LUN.
+	 */
+
+	if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) {
+		tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED;
+		starget_printk(KERN_INFO, sdev->sdev_target,
+				"Scan at boot disabled in NVRAM\n");
+		error = -ENXIO;
+		goto out;
+	}
+
+	if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) {
+		if (sdev->lun != 0) {
+			error = -ENXIO;
+			goto out;
+		}
+		starget_printk(KERN_INFO, sdev->sdev_target,
+				"Multiple LUNs disabled in NVRAM\n");
+	}
+
+	lp = sym_alloc_lcb(np, sdev->id, sdev->lun);
+	if (!lp) {
+		error = -ENOMEM;
+		goto out;
+	}
+	if (tp->nlcb == 1)
+		tp->starget = sdev->sdev_target;
+
+	spi_min_period(tp->starget) = tp->usr_period;
+	spi_max_width(tp->starget) = tp->usr_width;
+
+	error = 0;
+out:
+	spin_unlock_irqrestore(np->s.host->host_lock, flags);
+
+	return error;
+}
+
+/*
+ * Linux entry point for device queue sizing.
+ */
+static int sym53c8xx_slave_configure(struct scsi_device *sdev)
+{
+	struct sym_hcb *np = sym_get_hcb(sdev->host);
+	struct sym_tcb *tp = &np->target[sdev->id];
+	struct sym_lcb *lp = sym_lp(tp, sdev->lun);
+	int reqtags, depth_to_use;
+
+	/*
+	 *  Get user flags.
+	 */
+	lp->curr_flags = lp->user_flags;
+
+	/*
+	 *  Select queue depth from driver setup.
+	 *  Do not use more than configured by user.
+	 *  Use at least 1.
+	 *  Do not use more than our maximum.
+	 */
+	reqtags = sym_driver_setup.max_tag;
+	if (reqtags > tp->usrtags)
+		reqtags = tp->usrtags;
+	if (!sdev->tagged_supported)
+		reqtags = 0;
+	if (reqtags > SYM_CONF_MAX_TAG)
+		reqtags = SYM_CONF_MAX_TAG;
+	depth_to_use = reqtags ? reqtags : 1;
+	scsi_change_queue_depth(sdev, depth_to_use);
+	lp->s.scdev_depth = depth_to_use;
+	sym_tune_dev_queuing(tp, sdev->lun, reqtags);
+
+	if (!spi_initial_dv(sdev->sdev_target))
+		spi_dv_device(sdev);
+
+	return 0;
+}
+
+static void sym53c8xx_slave_destroy(struct scsi_device *sdev)
+{
+	struct sym_hcb *np = sym_get_hcb(sdev->host);
+	struct sym_tcb *tp = &np->target[sdev->id];
+	struct sym_lcb *lp = sym_lp(tp, sdev->lun);
+	unsigned long flags;
+
+	/* if slave_alloc returned before allocating a sym_lcb, return */
+	if (!lp)
+		return;
+
+	spin_lock_irqsave(np->s.host->host_lock, flags);
+
+	if (lp->busy_itlq || lp->busy_itl) {
+		/*
+		 * This really shouldn't happen, but we can't return an error
+		 * so let's try to stop all on-going I/O.
+		 */
+		starget_printk(KERN_WARNING, tp->starget,
+			       "Removing busy LCB (%d)\n", (u8)sdev->lun);
+		sym_reset_scsi_bus(np, 1);
+	}
+
+	if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) {
+		/*
+		 * It was the last unit for this target.
+		 */
+		tp->head.sval        = 0;
+		tp->head.wval        = np->rv_scntl3;
+		tp->head.uval        = 0;
+		tp->tgoal.check_nego = 1;
+		tp->starget	     = NULL;
+	}
+
+	spin_unlock_irqrestore(np->s.host->host_lock, flags);
+}
+
+/*
+ *  Linux entry point for info() function
+ */
+static const char *sym53c8xx_info (struct Scsi_Host *host)
+{
+	return SYM_DRIVER_NAME;
+}
+
+
+#ifdef SYM_LINUX_PROC_INFO_SUPPORT
+/*
+ *  Proc file system stuff
+ *
+ *  A read operation returns adapter information.
+ *  A write operation is a control command.
+ *  The string is parsed in the driver code and the command is passed 
+ *  to the sym_usercmd() function.
+ */
+
+#ifdef SYM_LINUX_USER_COMMAND_SUPPORT
+
+struct	sym_usrcmd {
+	u_long	target;
+	u_long	lun;
+	u_long	data;
+	u_long	cmd;
+};
+
+#define UC_SETSYNC      10
+#define UC_SETTAGS	11
+#define UC_SETDEBUG	12
+#define UC_SETWIDE	14
+#define UC_SETFLAG	15
+#define UC_SETVERBOSE	17
+#define UC_RESETDEV	18
+#define UC_CLEARDEV	19
+
+static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc)
+{
+	struct sym_tcb *tp;
+	int t, l;
+
+	switch (uc->cmd) {
+	case 0: return;
+
+#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
+	case UC_SETDEBUG:
+		sym_debug_flags = uc->data;
+		break;
+#endif
+	case UC_SETVERBOSE:
+		np->verbose = uc->data;
+		break;
+	default:
+		/*
+		 * We assume that other commands apply to targets.
+		 * This should always be the case and avoid the below 
+		 * 4 lines to be repeated 6 times.
+		 */
+		for (t = 0; t < SYM_CONF_MAX_TARGET; t++) {
+			if (!((uc->target >> t) & 1))
+				continue;
+			tp = &np->target[t];
+			if (!tp->nlcb)
+				continue;
+
+			switch (uc->cmd) {
+
+			case UC_SETSYNC:
+				if (!uc->data || uc->data >= 255) {
+					tp->tgoal.iu = tp->tgoal.dt =
+						tp->tgoal.qas = 0;
+					tp->tgoal.offset = 0;
+				} else if (uc->data <= 9 && np->minsync_dt) {
+					if (uc->data < np->minsync_dt)
+						uc->data = np->minsync_dt;
+					tp->tgoal.iu = tp->tgoal.dt =
+						tp->tgoal.qas = 1;
+					tp->tgoal.width = 1;
+					tp->tgoal.period = uc->data;
+					tp->tgoal.offset = np->maxoffs_dt;
+				} else {
+					if (uc->data < np->minsync)
+						uc->data = np->minsync;
+					tp->tgoal.iu = tp->tgoal.dt =
+						tp->tgoal.qas = 0;
+					tp->tgoal.period = uc->data;
+					tp->tgoal.offset = np->maxoffs;
+				}
+				tp->tgoal.check_nego = 1;
+				break;
+			case UC_SETWIDE:
+				tp->tgoal.width = uc->data ? 1 : 0;
+				tp->tgoal.check_nego = 1;
+				break;
+			case UC_SETTAGS:
+				for (l = 0; l < SYM_CONF_MAX_LUN; l++)
+					sym_tune_dev_queuing(tp, l, uc->data);
+				break;
+			case UC_RESETDEV:
+				tp->to_reset = 1;
+				np->istat_sem = SEM;
+				OUTB(np, nc_istat, SIGP|SEM);
+				break;
+			case UC_CLEARDEV:
+				for (l = 0; l < SYM_CONF_MAX_LUN; l++) {
+					struct sym_lcb *lp = sym_lp(tp, l);
+					if (lp) lp->to_clear = 1;
+				}
+				np->istat_sem = SEM;
+				OUTB(np, nc_istat, SIGP|SEM);
+				break;
+			case UC_SETFLAG:
+				tp->usrflags = uc->data;
+				break;
+			}
+		}
+		break;
+	}
+}
+
+static int sym_skip_spaces(char *ptr, int len)
+{
+	int cnt, c;
+
+	for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--);
+
+	return (len - cnt);
+}
+
+static int get_int_arg(char *ptr, int len, u_long *pv)
+{
+	char *end;
+
+	*pv = simple_strtoul(ptr, &end, 10);
+	return (end - ptr);
+}
+
+static int is_keyword(char *ptr, int len, char *verb)
+{
+	int verb_len = strlen(verb);
+
+	if (len >= verb_len && !memcmp(verb, ptr, verb_len))
+		return verb_len;
+	else
+		return 0;
+}
+
+#define SKIP_SPACES(ptr, len)						\
+	if ((arg_len = sym_skip_spaces(ptr, len)) < 1)			\
+		return -EINVAL;						\
+	ptr += arg_len; len -= arg_len;
+
+#define GET_INT_ARG(ptr, len, v)					\
+	if (!(arg_len = get_int_arg(ptr, len, &(v))))			\
+		return -EINVAL;						\
+	ptr += arg_len; len -= arg_len;
+
+
+/*
+ * Parse a control command
+ */
+
+static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length)
+{
+	struct sym_hcb *np = sym_get_hcb(shost);
+	char *ptr	= buffer;
+	int len		= length;
+	struct sym_usrcmd cmd, *uc = &cmd;
+	int		arg_len;
+	u_long 		target;
+
+	memset(uc, 0, sizeof(*uc));
+
+	if (len > 0 && ptr[len-1] == '\n')
+		--len;
+
+	if	((arg_len = is_keyword(ptr, len, "setsync")) != 0)
+		uc->cmd = UC_SETSYNC;
+	else if	((arg_len = is_keyword(ptr, len, "settags")) != 0)
+		uc->cmd = UC_SETTAGS;
+	else if	((arg_len = is_keyword(ptr, len, "setverbose")) != 0)
+		uc->cmd = UC_SETVERBOSE;
+	else if	((arg_len = is_keyword(ptr, len, "setwide")) != 0)
+		uc->cmd = UC_SETWIDE;
+#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
+	else if	((arg_len = is_keyword(ptr, len, "setdebug")) != 0)
+		uc->cmd = UC_SETDEBUG;
+#endif
+	else if	((arg_len = is_keyword(ptr, len, "setflag")) != 0)
+		uc->cmd = UC_SETFLAG;
+	else if	((arg_len = is_keyword(ptr, len, "resetdev")) != 0)
+		uc->cmd = UC_RESETDEV;
+	else if	((arg_len = is_keyword(ptr, len, "cleardev")) != 0)
+		uc->cmd = UC_CLEARDEV;
+	else
+		arg_len = 0;
+
+#ifdef DEBUG_PROC_INFO
+printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd);
+#endif
+
+	if (!arg_len)
+		return -EINVAL;
+	ptr += arg_len; len -= arg_len;
+
+	switch(uc->cmd) {
+	case UC_SETSYNC:
+	case UC_SETTAGS:
+	case UC_SETWIDE:
+	case UC_SETFLAG:
+	case UC_RESETDEV:
+	case UC_CLEARDEV:
+		SKIP_SPACES(ptr, len);
+		if ((arg_len = is_keyword(ptr, len, "all")) != 0) {
+			ptr += arg_len; len -= arg_len;
+			uc->target = ~0;
+		} else {
+			GET_INT_ARG(ptr, len, target);
+			uc->target = (1<<target);
+#ifdef DEBUG_PROC_INFO
+printk("sym_user_command: target=%ld\n", target);
+#endif
+		}
+		break;
+	}
+
+	switch(uc->cmd) {
+	case UC_SETVERBOSE:
+	case UC_SETSYNC:
+	case UC_SETTAGS:
+	case UC_SETWIDE:
+		SKIP_SPACES(ptr, len);
+		GET_INT_ARG(ptr, len, uc->data);
+#ifdef DEBUG_PROC_INFO
+printk("sym_user_command: data=%ld\n", uc->data);
+#endif
+		break;
+#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
+	case UC_SETDEBUG:
+		while (len > 0) {
+			SKIP_SPACES(ptr, len);
+			if	((arg_len = is_keyword(ptr, len, "alloc")))
+				uc->data |= DEBUG_ALLOC;
+			else if	((arg_len = is_keyword(ptr, len, "phase")))
+				uc->data |= DEBUG_PHASE;
+			else if	((arg_len = is_keyword(ptr, len, "queue")))
+				uc->data |= DEBUG_QUEUE;
+			else if	((arg_len = is_keyword(ptr, len, "result")))
+				uc->data |= DEBUG_RESULT;
+			else if	((arg_len = is_keyword(ptr, len, "scatter")))
+				uc->data |= DEBUG_SCATTER;
+			else if	((arg_len = is_keyword(ptr, len, "script")))
+				uc->data |= DEBUG_SCRIPT;
+			else if	((arg_len = is_keyword(ptr, len, "tiny")))
+				uc->data |= DEBUG_TINY;
+			else if	((arg_len = is_keyword(ptr, len, "timing")))
+				uc->data |= DEBUG_TIMING;
+			else if	((arg_len = is_keyword(ptr, len, "nego")))
+				uc->data |= DEBUG_NEGO;
+			else if	((arg_len = is_keyword(ptr, len, "tags")))
+				uc->data |= DEBUG_TAGS;
+			else if	((arg_len = is_keyword(ptr, len, "pointer")))
+				uc->data |= DEBUG_POINTER;
+			else
+				return -EINVAL;
+			ptr += arg_len; len -= arg_len;
+		}
+#ifdef DEBUG_PROC_INFO
+printk("sym_user_command: data=%ld\n", uc->data);
+#endif
+		break;
+#endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */
+	case UC_SETFLAG:
+		while (len > 0) {
+			SKIP_SPACES(ptr, len);
+			if	((arg_len = is_keyword(ptr, len, "no_disc")))
+				uc->data &= ~SYM_DISC_ENABLED;
+			else
+				return -EINVAL;
+			ptr += arg_len; len -= arg_len;
+		}
+		break;
+	default:
+		break;
+	}
+
+	if (len)
+		return -EINVAL;
+	else {
+		unsigned long flags;
+
+		spin_lock_irqsave(shost->host_lock, flags);
+		sym_exec_user_command(np, uc);
+		spin_unlock_irqrestore(shost->host_lock, flags);
+	}
+	return length;
+}
+
+#endif	/* SYM_LINUX_USER_COMMAND_SUPPORT */
+
+
+/*
+ *  Copy formatted information into the input buffer.
+ */
+static int sym_show_info(struct seq_file *m, struct Scsi_Host *shost)
+{
+#ifdef SYM_LINUX_USER_INFO_SUPPORT
+	struct sym_data *sym_data = shost_priv(shost);
+	struct pci_dev *pdev = sym_data->pdev;
+	struct sym_hcb *np = sym_data->ncb;
+
+	seq_printf(m, "Chip " NAME53C "%s, device id 0x%x, "
+		 "revision id 0x%x\n", np->s.chip_name,
+		 pdev->device, pdev->revision);
+	seq_printf(m, "At PCI address %s, IRQ %u\n",
+			 pci_name(pdev), pdev->irq);
+	seq_printf(m, "Min. period factor %d, %s SCSI BUS%s\n",
+		 (int) (np->minsync_dt ? np->minsync_dt : np->minsync),
+		 np->maxwide ? "Wide" : "Narrow",
+		 np->minsync_dt ? ", DT capable" : "");
+
+	seq_printf(m, "Max. started commands %d, "
+		 "max. commands per LUN %d\n",
+		 SYM_CONF_MAX_START, SYM_CONF_MAX_TAG);
+
+	return 0;
+#else
+	return -EINVAL;
+#endif /* SYM_LINUX_USER_INFO_SUPPORT */
+}
+
+#endif /* SYM_LINUX_PROC_INFO_SUPPORT */
+
+/*
+ * Free resources claimed by sym_iomap_device().  Note that
+ * sym_free_resources() should be used instead of this function after calling
+ * sym_attach().
+ */
+static void sym_iounmap_device(struct sym_device *device)
+{
+	if (device->s.ioaddr)
+		pci_iounmap(device->pdev, device->s.ioaddr);
+	if (device->s.ramaddr)
+		pci_iounmap(device->pdev, device->s.ramaddr);
+}
+
+/*
+ *	Free controller resources.
+ */
+static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev,
+		int do_free_irq)
+{
+	/*
+	 *  Free O/S specific resources.
+	 */
+	if (do_free_irq)
+		free_irq(pdev->irq, np->s.host);
+	if (np->s.ioaddr)
+		pci_iounmap(pdev, np->s.ioaddr);
+	if (np->s.ramaddr)
+		pci_iounmap(pdev, np->s.ramaddr);
+	/*
+	 *  Free O/S independent resources.
+	 */
+	sym_hcb_free(np);
+
+	sym_mfree_dma(np, sizeof(*np), "HCB");
+}
+
+/*
+ *  Host attach and initialisations.
+ *
+ *  Allocate host data and ncb structure.
+ *  Remap MMIO region.
+ *  Do chip initialization.
+ *  If all is OK, install interrupt handling and
+ *  start the timer daemon.
+ */
+static struct Scsi_Host *sym_attach(struct scsi_host_template *tpnt, int unit,
+				    struct sym_device *dev)
+{
+	struct sym_data *sym_data;
+	struct sym_hcb *np = NULL;
+	struct Scsi_Host *shost = NULL;
+	struct pci_dev *pdev = dev->pdev;
+	unsigned long flags;
+	struct sym_fw *fw;
+	int do_free_irq = 0;
+
+	printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n",
+		unit, dev->chip.name, pdev->revision, pci_name(pdev),
+		pdev->irq);
+
+	/*
+	 *  Get the firmware for this chip.
+	 */
+	fw = sym_find_firmware(&dev->chip);
+	if (!fw)
+		goto attach_failed;
+
+	shost = scsi_host_alloc(tpnt, sizeof(*sym_data));
+	if (!shost)
+		goto attach_failed;
+	sym_data = shost_priv(shost);
+
+	/*
+	 *  Allocate immediately the host control block, 
+	 *  since we are only expecting to succeed. :)
+	 *  We keep track in the HCB of all the resources that 
+	 *  are to be released on error.
+	 */
+	np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB");
+	if (!np)
+		goto attach_failed;
+	np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */
+	sym_data->ncb = np;
+	sym_data->pdev = pdev;
+	np->s.host = shost;
+
+	pci_set_drvdata(pdev, shost);
+
+	/*
+	 *  Copy some useful infos to the HCB.
+	 */
+	np->hcb_ba	= vtobus(np);
+	np->verbose	= sym_driver_setup.verbose;
+	np->s.unit	= unit;
+	np->features	= dev->chip.features;
+	np->clock_divn	= dev->chip.nr_divisor;
+	np->maxoffs	= dev->chip.offset_max;
+	np->maxburst	= dev->chip.burst_max;
+	np->myaddr	= dev->host_id;
+	np->mmio_ba	= (u32)dev->mmio_base;
+	np->ram_ba	= (u32)dev->ram_base;
+	np->s.ioaddr	= dev->s.ioaddr;
+	np->s.ramaddr	= dev->s.ramaddr;
+
+	/*
+	 *  Edit its name.
+	 */
+	strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name));
+	sprintf(np->s.inst_name, "sym%d", np->s.unit);
+
+	if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) &&
+			!dma_set_mask(&pdev->dev, DMA_DAC_MASK)) {
+		set_dac(np);
+	} else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
+		printf_warning("%s: No suitable DMA available\n", sym_name(np));
+		goto attach_failed;
+	}
+
+	if (sym_hcb_attach(shost, fw, dev->nvram))
+		goto attach_failed;
+
+	/*
+	 *  Install the interrupt handler.
+	 *  If we synchonize the C code with SCRIPTS on interrupt, 
+	 *  we do not want to share the INTR line at all.
+	 */
+	if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX,
+			shost)) {
+		printf_err("%s: request irq %u failure\n",
+			sym_name(np), pdev->irq);
+		goto attach_failed;
+	}
+	do_free_irq = 1;
+
+	/*
+	 *  After SCSI devices have been opened, we cannot
+	 *  reset the bus safely, so we do it here.
+	 */
+	spin_lock_irqsave(shost->host_lock, flags);
+	if (sym_reset_scsi_bus(np, 0))
+		goto reset_failed;
+
+	/*
+	 *  Start the SCRIPTS.
+	 */
+	sym_start_up(shost, 1);
+
+	/*
+	 *  Start the timer daemon
+	 */
+	timer_setup(&np->s.timer, sym53c8xx_timer, 0);
+	np->s.lasttime=0;
+	sym_timer (np);
+
+	/*
+	 *  Fill Linux host instance structure
+	 *  and return success.
+	 */
+	shost->max_channel	= 0;
+	shost->this_id		= np->myaddr;
+	shost->max_id		= np->maxwide ? 16 : 8;
+	shost->max_lun		= SYM_CONF_MAX_LUN;
+	shost->unique_id	= pci_resource_start(pdev, 0);
+	shost->cmd_per_lun	= SYM_CONF_MAX_TAG;
+	shost->can_queue	= (SYM_CONF_MAX_START-2);
+	shost->sg_tablesize	= SYM_CONF_MAX_SG;
+	shost->max_cmd_len	= 16;
+	BUG_ON(sym2_transport_template == NULL);
+	shost->transportt	= sym2_transport_template;
+
+	/* 53c896 rev 1 errata: DMA may not cross 16MB boundary */
+	if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2)
+		shost->dma_boundary = 0xFFFFFF;
+
+	spin_unlock_irqrestore(shost->host_lock, flags);
+
+	return shost;
+
+ reset_failed:
+	printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, "
+		   "TERMINATION, DEVICE POWER etc.!\n", sym_name(np));
+	spin_unlock_irqrestore(shost->host_lock, flags);
+ attach_failed:
+	printf_info("sym%d: giving up ...\n", unit);
+	if (np)
+		sym_free_resources(np, pdev, do_free_irq);
+	else
+		sym_iounmap_device(dev);
+	if (shost)
+		scsi_host_put(shost);
+
+	return NULL;
+}
+
+
+/*
+ *    Detect and try to read SYMBIOS and TEKRAM NVRAM.
+ */
+#if SYM_CONF_NVRAM_SUPPORT
+static void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp)
+{
+	devp->nvram = nvp;
+	nvp->type = 0;
+
+	sym_read_nvram(devp, nvp);
+}
+#else
+static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp)
+{
+}
+#endif	/* SYM_CONF_NVRAM_SUPPORT */
+
+static int sym_check_supported(struct sym_device *device)
+{
+	struct sym_chip *chip;
+	struct pci_dev *pdev = device->pdev;
+	unsigned long io_port = pci_resource_start(pdev, 0);
+	int i;
+
+	/*
+	 *  If user excluded this chip, do not initialize it.
+	 *  I hate this code so much.  Must kill it.
+	 */
+	if (io_port) {
+		for (i = 0 ; i < 8 ; i++) {
+			if (sym_driver_setup.excludes[i] == io_port)
+				return -ENODEV;
+		}
+	}
+
+	/*
+	 * Check if the chip is supported.  Then copy the chip description
+	 * to our device structure so we can make it match the actual device
+	 * and options.
+	 */
+	chip = sym_lookup_chip_table(pdev->device, pdev->revision);
+	if (!chip) {
+		dev_info(&pdev->dev, "device not supported\n");
+		return -ENODEV;
+	}
+	memcpy(&device->chip, chip, sizeof(device->chip));
+
+	return 0;
+}
+
+/*
+ * Ignore Symbios chips controlled by various RAID controllers.
+ * These controllers set value 0x52414944 at RAM end - 16.
+ */
+static int sym_check_raid(struct sym_device *device)
+{
+	unsigned int ram_size, ram_val;
+
+	if (!device->s.ramaddr)
+		return 0;
+
+	if (device->chip.features & FE_RAM8K)
+		ram_size = 8192;
+	else
+		ram_size = 4096;
+
+	ram_val = readl(device->s.ramaddr + ram_size - 16);
+	if (ram_val != 0x52414944)
+		return 0;
+
+	dev_info(&device->pdev->dev,
+			"not initializing, driven by RAID controller.\n");
+	return -ENODEV;
+}
+
+static int sym_set_workarounds(struct sym_device *device)
+{
+	struct sym_chip *chip = &device->chip;
+	struct pci_dev *pdev = device->pdev;
+	u_short status_reg;
+
+	/*
+	 *  (ITEM 12 of a DEL about the 896 I haven't yet).
+	 *  We must ensure the chip will use WRITE AND INVALIDATE.
+	 *  The revision number limit is for now arbitrary.
+	 */
+	if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) {
+		chip->features	|= (FE_WRIE | FE_CLSE);
+	}
+
+	/* If the chip can do Memory Write Invalidate, enable it */
+	if (chip->features & FE_WRIE) {
+		if (pci_set_mwi(pdev))
+			return -ENODEV;
+	}
+
+	/*
+	 *  Work around for errant bit in 895A. The 66Mhz
+	 *  capable bit is set erroneously. Clear this bit.
+	 *  (Item 1 DEL 533)
+	 *
+	 *  Make sure Config space and Features agree.
+	 *
+	 *  Recall: writes are not normal to status register -
+	 *  write a 1 to clear and a 0 to leave unchanged.
+	 *  Can only reset bits.
+	 */
+	pci_read_config_word(pdev, PCI_STATUS, &status_reg);
+	if (chip->features & FE_66MHZ) {
+		if (!(status_reg & PCI_STATUS_66MHZ))
+			chip->features &= ~FE_66MHZ;
+	} else {
+		if (status_reg & PCI_STATUS_66MHZ) {
+			status_reg = PCI_STATUS_66MHZ;
+			pci_write_config_word(pdev, PCI_STATUS, status_reg);
+			pci_read_config_word(pdev, PCI_STATUS, &status_reg);
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Map HBA registers and on-chip SRAM (if present).
+ */
+static int sym_iomap_device(struct sym_device *device)
+{
+	struct pci_dev *pdev = device->pdev;
+	struct pci_bus_region bus_addr;
+	int i = 2;
+
+	pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]);
+	device->mmio_base = bus_addr.start;
+
+	if (device->chip.features & FE_RAM) {
+		/*
+		 * If the BAR is 64-bit, resource 2 will be occupied by the
+		 * upper 32 bits
+		 */
+		if (!pdev->resource[i].flags)
+			i++;
+		pcibios_resource_to_bus(pdev->bus, &bus_addr,
+					&pdev->resource[i]);
+		device->ram_base = bus_addr.start;
+	}
+
+#ifdef CONFIG_SCSI_SYM53C8XX_MMIO
+	if (device->mmio_base)
+		device->s.ioaddr = pci_iomap(pdev, 1,
+						pci_resource_len(pdev, 1));
+#endif
+	if (!device->s.ioaddr)
+		device->s.ioaddr = pci_iomap(pdev, 0,
+						pci_resource_len(pdev, 0));
+	if (!device->s.ioaddr) {
+		dev_err(&pdev->dev, "could not map registers; giving up.\n");
+		return -EIO;
+	}
+	if (device->ram_base) {
+		device->s.ramaddr = pci_iomap(pdev, i,
+						pci_resource_len(pdev, i));
+		if (!device->s.ramaddr) {
+			dev_warn(&pdev->dev,
+				"could not map SRAM; continuing anyway.\n");
+			device->ram_base = 0;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * The NCR PQS and PDS cards are constructed as a DEC bridge
+ * behind which sits a proprietary NCR memory controller and
+ * either four or two 53c875s as separate devices.  We can tell
+ * if an 875 is part of a PQS/PDS or not since if it is, it will
+ * be on the same bus as the memory controller.  In its usual
+ * mode of operation, the 875s are slaved to the memory
+ * controller for all transfers.  To operate with the Linux
+ * driver, the memory controller is disabled and the 875s
+ * freed to function independently.  The only wrinkle is that
+ * the preset SCSI ID (which may be zero) must be read in from
+ * a special configuration space register of the 875.
+ */
+static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev)
+{
+	int slot;
+	u8 tmp;
+
+	for (slot = 0; slot < 256; slot++) {
+		struct pci_dev *memc = pci_get_slot(pdev->bus, slot);
+
+		if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) {
+			pci_dev_put(memc);
+			continue;
+		}
+
+		/* bit 1: allow individual 875 configuration */
+		pci_read_config_byte(memc, 0x44, &tmp);
+		if ((tmp & 0x2) == 0) {
+			tmp |= 0x2;
+			pci_write_config_byte(memc, 0x44, tmp);
+		}
+
+		/* bit 2: drive individual 875 interrupts to the bus */
+		pci_read_config_byte(memc, 0x45, &tmp);
+		if ((tmp & 0x4) == 0) {
+			tmp |= 0x4;
+			pci_write_config_byte(memc, 0x45, tmp);
+		}
+
+		pci_dev_put(memc);
+		break;
+	}
+
+	pci_read_config_byte(pdev, 0x84, &tmp);
+	sym_dev->host_id = tmp;
+}
+
+/*
+ *  Called before unloading the module.
+ *  Detach the host.
+ *  We have to free resources and halt the NCR chip.
+ */
+static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev)
+{
+	struct sym_hcb *np = sym_get_hcb(shost);
+	printk("%s: detaching ...\n", sym_name(np));
+
+	del_timer_sync(&np->s.timer);
+
+	/*
+	 * Reset NCR chip.
+	 * We should use sym_soft_reset(), but we don't want to do 
+	 * so, since we may not be safe if interrupts occur.
+	 */
+	printk("%s: resetting chip\n", sym_name(np));
+	OUTB(np, nc_istat, SRST);
+	INB(np, nc_mbox1);
+	udelay(10);
+	OUTB(np, nc_istat, 0);
+
+	sym_free_resources(np, pdev, 1);
+	scsi_host_put(shost);
+
+	return 1;
+}
+
+/*
+ * Driver host template.
+ */
+static struct scsi_host_template sym2_template = {
+	.module			= THIS_MODULE,
+	.name			= "sym53c8xx",
+	.info			= sym53c8xx_info, 
+	.queuecommand		= sym53c8xx_queue_command,
+	.slave_alloc		= sym53c8xx_slave_alloc,
+	.slave_configure	= sym53c8xx_slave_configure,
+	.slave_destroy		= sym53c8xx_slave_destroy,
+	.eh_abort_handler	= sym53c8xx_eh_abort_handler,
+	.eh_device_reset_handler = sym53c8xx_eh_device_reset_handler,
+	.eh_bus_reset_handler	= sym53c8xx_eh_bus_reset_handler,
+	.eh_host_reset_handler	= sym53c8xx_eh_host_reset_handler,
+	.this_id		= 7,
+	.max_sectors		= 0xFFFF,
+#ifdef SYM_LINUX_PROC_INFO_SUPPORT
+	.show_info		= sym_show_info,
+#ifdef	SYM_LINUX_USER_COMMAND_SUPPORT
+	.write_info		= sym_user_command,
+#endif
+	.proc_name		= NAME53C8XX,
+#endif
+};
+
+static int attach_count;
+
+static int sym2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct sym_device sym_dev;
+	struct sym_nvram nvram;
+	struct Scsi_Host *shost;
+	int do_iounmap = 0;
+	int do_disable_device = 1;
+
+	memset(&sym_dev, 0, sizeof(sym_dev));
+	memset(&nvram, 0, sizeof(nvram));
+	sym_dev.pdev = pdev;
+	sym_dev.host_id = SYM_SETUP_HOST_ID;
+
+	if (pci_enable_device(pdev))
+		goto leave;
+
+	pci_set_master(pdev);
+
+	if (pci_request_regions(pdev, NAME53C8XX))
+		goto disable;
+
+	if (sym_check_supported(&sym_dev))
+		goto free;
+
+	if (sym_iomap_device(&sym_dev))
+		goto free;
+	do_iounmap = 1;
+
+	if (sym_check_raid(&sym_dev)) {
+		do_disable_device = 0;	/* Don't disable the device */
+		goto free;
+	}
+
+	if (sym_set_workarounds(&sym_dev))
+		goto free;
+
+	sym_config_pqs(pdev, &sym_dev);
+
+	sym_get_nvram(&sym_dev, &nvram);
+
+	do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */
+	shost = sym_attach(&sym2_template, attach_count, &sym_dev);
+	if (!shost)
+		goto free;
+
+	if (scsi_add_host(shost, &pdev->dev))
+		goto detach;
+	scsi_scan_host(shost);
+
+	attach_count++;
+
+	return 0;
+
+ detach:
+	sym_detach(pci_get_drvdata(pdev), pdev);
+ free:
+	if (do_iounmap)
+		sym_iounmap_device(&sym_dev);
+	pci_release_regions(pdev);
+ disable:
+	if (do_disable_device)
+		pci_disable_device(pdev);
+ leave:
+	return -ENODEV;
+}
+
+static void sym2_remove(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+
+	scsi_remove_host(shost);
+	sym_detach(shost, pdev);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+
+	attach_count--;
+}
+
+/**
+ * sym2_io_error_detected() - called when PCI error is detected
+ * @pdev: pointer to PCI device
+ * @state: current state of the PCI slot
+ */
+static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev,
+                                         pci_channel_state_t state)
+{
+	/* If slot is permanently frozen, turn everything off */
+	if (state == pci_channel_io_perm_failure) {
+		sym2_remove(pdev);
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	disable_irq(pdev->irq);
+	pci_disable_device(pdev);
+
+	/* Request that MMIO be enabled, so register dump can be taken. */
+	return PCI_ERS_RESULT_CAN_RECOVER;
+}
+
+/**
+ * sym2_io_slot_dump - Enable MMIO and dump debug registers
+ * @pdev: pointer to PCI device
+ */
+static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+
+	sym_dump_registers(shost);
+
+	/* Request a slot reset. */
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * sym2_reset_workarounds - hardware-specific work-arounds
+ * @pdev: pointer to PCI device
+ *
+ * This routine is similar to sym_set_workarounds(), except
+ * that, at this point, we already know that the device was
+ * successfully initialized at least once before, and so most
+ * of the steps taken there are un-needed here.
+ */
+static void sym2_reset_workarounds(struct pci_dev *pdev)
+{
+	u_short status_reg;
+	struct sym_chip *chip;
+
+	chip = sym_lookup_chip_table(pdev->device, pdev->revision);
+
+	/* Work around for errant bit in 895A, in a fashion
+	 * similar to what is done in sym_set_workarounds().
+	 */
+	pci_read_config_word(pdev, PCI_STATUS, &status_reg);
+	if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) {
+		status_reg = PCI_STATUS_66MHZ;
+		pci_write_config_word(pdev, PCI_STATUS, status_reg);
+		pci_read_config_word(pdev, PCI_STATUS, &status_reg);
+	}
+}
+
+/**
+ * sym2_io_slot_reset() - called when the pci bus has been reset.
+ * @pdev: pointer to PCI device
+ *
+ * Restart the card from scratch.
+ */
+static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct sym_hcb *np = sym_get_hcb(shost);
+
+	printk(KERN_INFO "%s: recovering from a PCI slot reset\n",
+	          sym_name(np));
+
+	if (pci_enable_device(pdev)) {
+		printk(KERN_ERR "%s: Unable to enable after PCI reset\n",
+		        sym_name(np));
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	pci_set_master(pdev);
+	enable_irq(pdev->irq);
+
+	/* If the chip can do Memory Write Invalidate, enable it */
+	if (np->features & FE_WRIE) {
+		if (pci_set_mwi(pdev))
+			return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	/* Perform work-arounds, analogous to sym_set_workarounds() */
+	sym2_reset_workarounds(pdev);
+
+	/* Perform host reset only on one instance of the card */
+	if (PCI_FUNC(pdev->devfn) == 0) {
+		if (sym_reset_scsi_bus(np, 0)) {
+			printk(KERN_ERR "%s: Unable to reset scsi host\n",
+			        sym_name(np));
+			return PCI_ERS_RESULT_DISCONNECT;
+		}
+		sym_start_up(shost, 1);
+	}
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * sym2_io_resume() - resume normal ops after PCI reset
+ * @pdev: pointer to PCI device
+ *
+ * Called when the error recovery driver tells us that its
+ * OK to resume normal operation. Use completion to allow
+ * halted scsi ops to resume.
+ */
+static void sym2_io_resume(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct sym_data *sym_data = shost_priv(shost);
+
+	spin_lock_irq(shost->host_lock);
+	if (sym_data->io_reset)
+		complete(sym_data->io_reset);
+	spin_unlock_irq(shost->host_lock);
+}
+
+static void sym2_get_signalling(struct Scsi_Host *shost)
+{
+	struct sym_hcb *np = sym_get_hcb(shost);
+	enum spi_signal_type type;
+
+	switch (np->scsi_mode) {
+	case SMODE_SE:
+		type = SPI_SIGNAL_SE;
+		break;
+	case SMODE_LVD:
+		type = SPI_SIGNAL_LVD;
+		break;
+	case SMODE_HVD:
+		type = SPI_SIGNAL_HVD;
+		break;
+	default:
+		type = SPI_SIGNAL_UNKNOWN;
+		break;
+	}
+	spi_signalling(shost) = type;
+}
+
+static void sym2_set_offset(struct scsi_target *starget, int offset)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	tp->tgoal.offset = offset;
+	tp->tgoal.check_nego = 1;
+}
+
+static void sym2_set_period(struct scsi_target *starget, int period)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	/* have to have DT for these transfers, but DT will also
+	 * set width, so check that this is allowed */
+	if (period <= np->minsync && spi_width(starget))
+		tp->tgoal.dt = 1;
+
+	tp->tgoal.period = period;
+	tp->tgoal.check_nego = 1;
+}
+
+static void sym2_set_width(struct scsi_target *starget, int width)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	/* It is illegal to have DT set on narrow transfers.  If DT is
+	 * clear, we must also clear IU and QAS.  */
+	if (width == 0)
+		tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0;
+
+	tp->tgoal.width = width;
+	tp->tgoal.check_nego = 1;
+}
+
+static void sym2_set_dt(struct scsi_target *starget, int dt)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	/* We must clear QAS and IU if DT is clear */
+	if (dt)
+		tp->tgoal.dt = 1;
+	else
+		tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0;
+	tp->tgoal.check_nego = 1;
+}
+
+#if 0
+static void sym2_set_iu(struct scsi_target *starget, int iu)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	if (iu)
+		tp->tgoal.iu = tp->tgoal.dt = 1;
+	else
+		tp->tgoal.iu = 0;
+	tp->tgoal.check_nego = 1;
+}
+
+static void sym2_set_qas(struct scsi_target *starget, int qas)
+{
+	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+	struct sym_hcb *np = sym_get_hcb(shost);
+	struct sym_tcb *tp = &np->target[starget->id];
+
+	if (qas)
+		tp->tgoal.dt = tp->tgoal.qas = 1;
+	else
+		tp->tgoal.qas = 0;
+	tp->tgoal.check_nego = 1;
+}
+#endif
+
+static struct spi_function_template sym2_transport_functions = {
+	.set_offset	= sym2_set_offset,
+	.show_offset	= 1,
+	.set_period	= sym2_set_period,
+	.show_period	= 1,
+	.set_width	= sym2_set_width,
+	.show_width	= 1,
+	.set_dt		= sym2_set_dt,
+	.show_dt	= 1,
+#if 0
+	.set_iu		= sym2_set_iu,
+	.show_iu	= 1,
+	.set_qas	= sym2_set_qas,
+	.show_qas	= 1,
+#endif
+	.get_signalling	= sym2_get_signalling,
+};
+
+static struct pci_device_id sym2_id_table[] = {
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510,
+	  PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8,  0xffff00, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510,
+	  PCI_ANY_ID, PCI_ANY_ID,  PCI_CLASS_STORAGE_SCSI<<8,  0xffff00, 0UL }, /* new */
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, sym2_id_table);
+
+static const struct pci_error_handlers sym2_err_handler = {
+	.error_detected	= sym2_io_error_detected,
+	.mmio_enabled	= sym2_io_slot_dump,
+	.slot_reset	= sym2_io_slot_reset,
+	.resume		= sym2_io_resume,
+};
+
+static struct pci_driver sym2_driver = {
+	.name		= NAME53C8XX,
+	.id_table	= sym2_id_table,
+	.probe		= sym2_probe,
+	.remove		= sym2_remove,
+	.err_handler 	= &sym2_err_handler,
+};
+
+static int __init sym2_init(void)
+{
+	int error;
+
+	sym2_setup_params();
+	sym2_transport_template = spi_attach_transport(&sym2_transport_functions);
+	if (!sym2_transport_template)
+		return -ENODEV;
+
+	error = pci_register_driver(&sym2_driver);
+	if (error)
+		spi_release_transport(sym2_transport_template);
+	return error;
+}
+
+static void __exit sym2_exit(void)
+{
+	pci_unregister_driver(&sym2_driver);
+	spi_release_transport(sym2_transport_template);
+}
+
+module_init(sym2_init);
+module_exit(sym2_exit);