Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 6083 insertions, 0 deletions

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
new file mode 100644
index 0000000..5441531
--- /dev/null
+++ b/drivers/scsi/ipr.c
@@ -0,0 +1,6083 @@
+/*
+ * ipr.c -- driver for IBM Power Linux RAID adapters
+ *
+ * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2003, 2004 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*
+ * Notes:
+ *
+ * This driver is used to control the following SCSI adapters:
+ *
+ * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
+ *
+ * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
+ *              PCI-X Dual Channel Ultra 320 SCSI Adapter
+ *              PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
+ *              Embedded SCSI adapter on p615 and p655 systems
+ *
+ * Supported Hardware Features:
+ *	- Ultra 320 SCSI controller
+ *	- PCI-X host interface
+ *	- Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
+ *	- Non-Volatile Write Cache
+ *	- Supports attachment of non-RAID disks, tape, and optical devices
+ *	- RAID Levels 0, 5, 10
+ *	- Hot spare
+ *	- Background Parity Checking
+ *	- Background Data Scrubbing
+ *	- Ability to increase the capacity of an existing RAID 5 disk array
+ *		by adding disks
+ *
+ * Driver Features:
+ *	- Tagged command queuing
+ *	- Adapter microcode download
+ *	- PCI hot plug
+ *	- SCSI device hot plug
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/processor.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_request.h>
+#include "ipr.h"
+
+/*
+ *   Global Data
+ */
+static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head);
+static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
+static unsigned int ipr_max_speed = 1;
+static int ipr_testmode = 0;
+static unsigned int ipr_fastfail = 0;
+static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT;
+static DEFINE_SPINLOCK(ipr_driver_lock);
+
+/* This table describes the differences between DMA controller chips */
+static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
+	{ /* Gemstone and Citrine */
+		.mailbox = 0x0042C,
+		.cache_line_size = 0x20,
+		{
+			.set_interrupt_mask_reg = 0x0022C,
+			.clr_interrupt_mask_reg = 0x00230,
+			.sense_interrupt_mask_reg = 0x0022C,
+			.clr_interrupt_reg = 0x00228,
+			.sense_interrupt_reg = 0x00224,
+			.ioarrin_reg = 0x00404,
+			.sense_uproc_interrupt_reg = 0x00214,
+			.set_uproc_interrupt_reg = 0x00214,
+			.clr_uproc_interrupt_reg = 0x00218
+		}
+	},
+	{ /* Snipe and Scamp */
+		.mailbox = 0x0052C,
+		.cache_line_size = 0x20,
+		{
+			.set_interrupt_mask_reg = 0x00288,
+			.clr_interrupt_mask_reg = 0x0028C,
+			.sense_interrupt_mask_reg = 0x00288,
+			.clr_interrupt_reg = 0x00284,
+			.sense_interrupt_reg = 0x00280,
+			.ioarrin_reg = 0x00504,
+			.sense_uproc_interrupt_reg = 0x00290,
+			.set_uproc_interrupt_reg = 0x00290,
+			.clr_uproc_interrupt_reg = 0x00294
+		}
+	},
+};
+
+static const struct ipr_chip_t ipr_chip[] = {
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
+};
+
+static int ipr_max_bus_speeds [] = {
+	IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
+};
+
+MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
+MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
+module_param_named(max_speed, ipr_max_speed, uint, 0);
+MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
+module_param_named(log_level, ipr_log_level, uint, 0);
+MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
+module_param_named(testmode, ipr_testmode, int, 0);
+MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
+module_param_named(fastfail, ipr_fastfail, int, 0);
+MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
+module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
+MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(IPR_DRIVER_VERSION);
+
+static const char *ipr_gpdd_dev_end_states[] = {
+	"Command complete",
+	"Terminated by host",
+	"Terminated by device reset",
+	"Terminated by bus reset",
+	"Unknown",
+	"Command not started"
+};
+
+static const char *ipr_gpdd_dev_bus_phases[] = {
+	"Bus free",
+	"Arbitration",
+	"Selection",
+	"Message out",
+	"Command",
+	"Message in",
+	"Data out",
+	"Data in",
+	"Status",
+	"Reselection",
+	"Unknown"
+};
+
+/*  A constant array of IOASCs/URCs/Error Messages */
+static const
+struct ipr_error_table_t ipr_error_table[] = {
+	{0x00000000, 1, 1,
+	"8155: An unknown error was received"},
+	{0x00330000, 0, 0,
+	"Soft underlength error"},
+	{0x005A0000, 0, 0,
+	"Command to be cancelled not found"},
+	{0x00808000, 0, 0,
+	"Qualified success"},
+	{0x01080000, 1, 1,
+	"FFFE: Soft device bus error recovered by the IOA"},
+	{0x01170600, 0, 1,
+	"FFF9: Device sector reassign successful"},
+	{0x01170900, 0, 1,
+	"FFF7: Media error recovered by device rewrite procedures"},
+	{0x01180200, 0, 1,
+	"7001: IOA sector reassignment successful"},
+	{0x01180500, 0, 1,
+	"FFF9: Soft media error. Sector reassignment recommended"},
+	{0x01180600, 0, 1,
+	"FFF7: Media error recovered by IOA rewrite procedures"},
+	{0x01418000, 0, 1,
+	"FF3D: Soft PCI bus error recovered by the IOA"},
+	{0x01440000, 1, 1,
+	"FFF6: Device hardware error recovered by the IOA"},
+	{0x01448100, 0, 1,
+	"FFF6: Device hardware error recovered by the device"},
+	{0x01448200, 1, 1,
+	"FF3D: Soft IOA error recovered by the IOA"},
+	{0x01448300, 0, 1,
+	"FFFA: Undefined device response recovered by the IOA"},
+	{0x014A0000, 1, 1,
+	"FFF6: Device bus error, message or command phase"},
+	{0x015D0000, 0, 1,
+	"FFF6: Failure prediction threshold exceeded"},
+	{0x015D9200, 0, 1,
+	"8009: Impending cache battery pack failure"},
+	{0x02040400, 0, 0,
+	"34FF: Disk device format in progress"},
+	{0x023F0000, 0, 0,
+	"Synchronization required"},
+	{0x024E0000, 0, 0,
+	"No ready, IOA shutdown"},
+	{0x025A0000, 0, 0,
+	"Not ready, IOA has been shutdown"},
+	{0x02670100, 0, 1,
+	"3020: Storage subsystem configuration error"},
+	{0x03110B00, 0, 0,
+	"FFF5: Medium error, data unreadable, recommend reassign"},
+	{0x03110C00, 0, 0,
+	"7000: Medium error, data unreadable, do not reassign"},
+	{0x03310000, 0, 1,
+	"FFF3: Disk media format bad"},
+	{0x04050000, 0, 1,
+	"3002: Addressed device failed to respond to selection"},
+	{0x04080000, 1, 1,
+	"3100: Device bus error"},
+	{0x04080100, 0, 1,
+	"3109: IOA timed out a device command"},
+	{0x04088000, 0, 0,
+	"3120: SCSI bus is not operational"},
+	{0x04118000, 0, 1,
+	"9000: IOA reserved area data check"},
+	{0x04118100, 0, 1,
+	"9001: IOA reserved area invalid data pattern"},
+	{0x04118200, 0, 1,
+	"9002: IOA reserved area LRC error"},
+	{0x04320000, 0, 1,
+	"102E: Out of alternate sectors for disk storage"},
+	{0x04330000, 1, 1,
+	"FFF4: Data transfer underlength error"},
+	{0x04338000, 1, 1,
+	"FFF4: Data transfer overlength error"},
+	{0x043E0100, 0, 1,
+	"3400: Logical unit failure"},
+	{0x04408500, 0, 1,
+	"FFF4: Device microcode is corrupt"},
+	{0x04418000, 1, 1,
+	"8150: PCI bus error"},
+	{0x04430000, 1, 0,
+	"Unsupported device bus message received"},
+	{0x04440000, 1, 1,
+	"FFF4: Disk device problem"},
+	{0x04448200, 1, 1,
+	"8150: Permanent IOA failure"},
+	{0x04448300, 0, 1,
+	"3010: Disk device returned wrong response to IOA"},
+	{0x04448400, 0, 1,
+	"8151: IOA microcode error"},
+	{0x04448500, 0, 0,
+	"Device bus status error"},
+	{0x04448600, 0, 1,
+	"8157: IOA error requiring IOA reset to recover"},
+	{0x04490000, 0, 0,
+	"Message reject received from the device"},
+	{0x04449200, 0, 1,
+	"8008: A permanent cache battery pack failure occurred"},
+	{0x0444A000, 0, 1,
+	"9090: Disk unit has been modified after the last known status"},
+	{0x0444A200, 0, 1,
+	"9081: IOA detected device error"},
+	{0x0444A300, 0, 1,
+	"9082: IOA detected device error"},
+	{0x044A0000, 1, 1,
+	"3110: Device bus error, message or command phase"},
+	{0x04670400, 0, 1,
+	"9091: Incorrect hardware configuration change has been detected"},
+	{0x046E0000, 0, 1,
+	"FFF4: Command to logical unit failed"},
+	{0x05240000, 1, 0,
+	"Illegal request, invalid request type or request packet"},
+	{0x05250000, 0, 0,
+	"Illegal request, invalid resource handle"},
+	{0x05260000, 0, 0,
+	"Illegal request, invalid field in parameter list"},
+	{0x05260100, 0, 0,
+	"Illegal request, parameter not supported"},
+	{0x05260200, 0, 0,
+	"Illegal request, parameter value invalid"},
+	{0x052C0000, 0, 0,
+	"Illegal request, command sequence error"},
+	{0x06040500, 0, 1,
+	"9031: Array protection temporarily suspended, protection resuming"},
+	{0x06040600, 0, 1,
+	"9040: Array protection temporarily suspended, protection resuming"},
+	{0x06290000, 0, 1,
+	"FFFB: SCSI bus was reset"},
+	{0x06290500, 0, 0,
+	"FFFE: SCSI bus transition to single ended"},
+	{0x06290600, 0, 0,
+	"FFFE: SCSI bus transition to LVD"},
+	{0x06298000, 0, 1,
+	"FFFB: SCSI bus was reset by another initiator"},
+	{0x063F0300, 0, 1,
+	"3029: A device replacement has occurred"},
+	{0x064C8000, 0, 1,
+	"9051: IOA cache data exists for a missing or failed device"},
+	{0x06670100, 0, 1,
+	"9025: Disk unit is not supported at its physical location"},
+	{0x06670600, 0, 1,
+	"3020: IOA detected a SCSI bus configuration error"},
+	{0x06678000, 0, 1,
+	"3150: SCSI bus configuration error"},
+	{0x06690200, 0, 1,
+	"9041: Array protection temporarily suspended"},
+	{0x06698200, 0, 1,
+	"9042: Corrupt array parity detected on specified device"},
+	{0x066B0200, 0, 1,
+	"9030: Array no longer protected due to missing or failed disk unit"},
+	{0x066B8200, 0, 1,
+	"9032: Array exposed but still protected"},
+	{0x07270000, 0, 0,
+	"Failure due to other device"},
+	{0x07278000, 0, 1,
+	"9008: IOA does not support functions expected by devices"},
+	{0x07278100, 0, 1,
+	"9010: Cache data associated with attached devices cannot be found"},
+	{0x07278200, 0, 1,
+	"9011: Cache data belongs to devices other than those attached"},
+	{0x07278400, 0, 1,
+	"9020: Array missing 2 or more devices with only 1 device present"},
+	{0x07278500, 0, 1,
+	"9021: Array missing 2 or more devices with 2 or more devices present"},
+	{0x07278600, 0, 1,
+	"9022: Exposed array is missing a required device"},
+	{0x07278700, 0, 1,
+	"9023: Array member(s) not at required physical locations"},
+	{0x07278800, 0, 1,
+	"9024: Array not functional due to present hardware configuration"},
+	{0x07278900, 0, 1,
+	"9026: Array not functional due to present hardware configuration"},
+	{0x07278A00, 0, 1,
+	"9027: Array is missing a device and parity is out of sync"},
+	{0x07278B00, 0, 1,
+	"9028: Maximum number of arrays already exist"},
+	{0x07278C00, 0, 1,
+	"9050: Required cache data cannot be located for a disk unit"},
+	{0x07278D00, 0, 1,
+	"9052: Cache data exists for a device that has been modified"},
+	{0x07278F00, 0, 1,
+	"9054: IOA resources not available due to previous problems"},
+	{0x07279100, 0, 1,
+	"9092: Disk unit requires initialization before use"},
+	{0x07279200, 0, 1,
+	"9029: Incorrect hardware configuration change has been detected"},
+	{0x07279600, 0, 1,
+	"9060: One or more disk pairs are missing from an array"},
+	{0x07279700, 0, 1,
+	"9061: One or more disks are missing from an array"},
+	{0x07279800, 0, 1,
+	"9062: One or more disks are missing from an array"},
+	{0x07279900, 0, 1,
+	"9063: Maximum number of functional arrays has been exceeded"},
+	{0x0B260000, 0, 0,
+	"Aborted command, invalid descriptor"},
+	{0x0B5A0000, 0, 0,
+	"Command terminated by host"}
+};
+
+static const struct ipr_ses_table_entry ipr_ses_table[] = {
+	{ "2104-DL1        ", "XXXXXXXXXXXXXXXX", 80 },
+	{ "2104-TL1        ", "XXXXXXXXXXXXXXXX", 80 },
+	{ "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
+	{ "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
+	{ "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
+	{ "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
+	{ "2104-DU3        ", "XXXXXXXXXXXXXXXX", 160 },
+	{ "2104-TU3        ", "XXXXXXXXXXXXXXXX", 160 },
+	{ "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
+	{ "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
+	{ "St  V1S2        ", "XXXXXXXXXXXXXXXX", 160 },
+	{ "HSBPD4M  PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
+	{ "VSBPD1H   U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
+};
+
+/*
+ *  Function Prototypes
+ */
+static int ipr_reset_alert(struct ipr_cmnd *);
+static void ipr_process_ccn(struct ipr_cmnd *);
+static void ipr_process_error(struct ipr_cmnd *);
+static void ipr_reset_ioa_job(struct ipr_cmnd *);
+static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
+				   enum ipr_shutdown_type);
+
+#ifdef CONFIG_SCSI_IPR_TRACE
+/**
+ * ipr_trc_hook - Add a trace entry to the driver trace
+ * @ipr_cmd:	ipr command struct
+ * @type:		trace type
+ * @add_data:	additional data
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
+			 u8 type, u32 add_data)
+{
+	struct ipr_trace_entry *trace_entry;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
+	trace_entry->time = jiffies;
+	trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
+	trace_entry->type = type;
+	trace_entry->cmd_index = ipr_cmd->cmd_index;
+	trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
+	trace_entry->u.add_data = add_data;
+}
+#else
+#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
+#endif
+
+/**
+ * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+
+	memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
+	ioarcb->write_data_transfer_length = 0;
+	ioarcb->read_data_transfer_length = 0;
+	ioarcb->write_ioadl_len = 0;
+	ioarcb->read_ioadl_len = 0;
+	ioasa->ioasc = 0;
+	ioasa->residual_data_len = 0;
+
+	ipr_cmd->scsi_cmd = NULL;
+	ipr_cmd->sense_buffer[0] = 0;
+	ipr_cmd->dma_use_sg = 0;
+}
+
+/**
+ * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
+{
+	ipr_reinit_ipr_cmnd(ipr_cmd);
+	ipr_cmd->u.scratch = 0;
+	ipr_cmd->sibling = NULL;
+	init_timer(&ipr_cmd->timer);
+}
+
+/**
+ * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	pointer to ipr command struct
+ **/
+static
+struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_cmnd *ipr_cmd;
+
+	ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
+	list_del(&ipr_cmd->queue);
+	ipr_init_ipr_cmnd(ipr_cmd);
+
+	return ipr_cmd;
+}
+
+/**
+ * ipr_unmap_sglist - Unmap scatterlist if mapped
+ * @ioa_cfg:	ioa config struct
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg,
+			     struct ipr_cmnd *ipr_cmd)
+{
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+
+	if (ipr_cmd->dma_use_sg) {
+		if (scsi_cmd->use_sg > 0) {
+			pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer,
+				     scsi_cmd->use_sg,
+				     scsi_cmd->sc_data_direction);
+		} else {
+			pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle,
+					 scsi_cmd->request_bufflen,
+					 scsi_cmd->sc_data_direction);
+		}
+	}
+}
+
+/**
+ * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
+ * @ioa_cfg:	ioa config struct
+ * @clr_ints:     interrupts to clear
+ *
+ * This function masks all interrupts on the adapter, then clears the
+ * interrupts specified in the mask
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
+					  u32 clr_ints)
+{
+	volatile u32 int_reg;
+
+	/* Stop new interrupts */
+	ioa_cfg->allow_interrupts = 0;
+
+	/* Set interrupt mask to stop all new interrupts */
+	writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
+
+	/* Clear any pending interrupts */
+	writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+}
+
+/**
+ * ipr_save_pcix_cmd_reg - Save PCI-X command register
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	0 on success / -EIO on failure
+ **/
+static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
+
+	if (pcix_cmd_reg == 0) {
+		dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
+		return -EIO;
+	}
+
+	if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
+				 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
+		dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
+		return -EIO;
+	}
+
+	ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
+	return 0;
+}
+
+/**
+ * ipr_set_pcix_cmd_reg - Setup PCI-X command register
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	0 on success / -EIO on failure
+ **/
+static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
+
+	if (pcix_cmd_reg) {
+		if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
+					  ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
+			dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
+			return -EIO;
+		}
+	} else {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Failed to setup PCI-X command register\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/**
+ * ipr_scsi_eh_done - mid-layer done function for aborted ops
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is invoked by the interrupt handler for
+ * ops generated by the SCSI mid-layer which are being aborted.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+
+	scsi_cmd->result |= (DID_ERROR << 16);
+
+	ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+	scsi_cmd->scsi_done(scsi_cmd);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+}
+
+/**
+ * ipr_fail_all_ops - Fails all outstanding ops.
+ * @ioa_cfg:	ioa config struct
+ *
+ * This function fails all outstanding ops.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_cmnd *ipr_cmd, *temp;
+
+	ENTER;
+	list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
+		list_del(&ipr_cmd->queue);
+
+		ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
+		ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
+
+		if (ipr_cmd->scsi_cmd)
+			ipr_cmd->done = ipr_scsi_eh_done;
+
+		ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
+		del_timer(&ipr_cmd->timer);
+		ipr_cmd->done(ipr_cmd);
+	}
+
+	LEAVE;
+}
+
+/**
+ * ipr_do_req -  Send driver initiated requests.
+ * @ipr_cmd:		ipr command struct
+ * @done:			done function
+ * @timeout_func:	timeout function
+ * @timeout:		timeout value
+ *
+ * This function sends the specified command to the adapter with the
+ * timeout given. The done function is invoked on command completion.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
+		       void (*done) (struct ipr_cmnd *),
+		       void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
+
+	ipr_cmd->done = done;
+
+	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
+	ipr_cmd->timer.expires = jiffies + timeout;
+	ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
+
+	add_timer(&ipr_cmd->timer);
+
+	ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
+
+	mb();
+	writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
+	       ioa_cfg->regs.ioarrin_reg);
+}
+
+/**
+ * ipr_internal_cmd_done - Op done function for an internally generated op.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is the op done function for an internally generated,
+ * blocking op. It simply wakes the sleeping thread.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
+{
+	if (ipr_cmd->sibling)
+		ipr_cmd->sibling = NULL;
+	else
+		complete(&ipr_cmd->completion);
+}
+
+/**
+ * ipr_send_blocking_cmd - Send command and sleep on its completion.
+ * @ipr_cmd:	ipr command struct
+ * @timeout_func:	function to invoke if command times out
+ * @timeout:	timeout
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
+				  void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
+				  u32 timeout)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	init_completion(&ipr_cmd->completion);
+	ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
+
+	spin_unlock_irq(ioa_cfg->host->host_lock);
+	wait_for_completion(&ipr_cmd->completion);
+	spin_lock_irq(ioa_cfg->host->host_lock);
+}
+
+/**
+ * ipr_send_hcam - Send an HCAM to the adapter.
+ * @ioa_cfg:	ioa config struct
+ * @type:		HCAM type
+ * @hostrcb:	hostrcb struct
+ *
+ * This function will send a Host Controlled Async command to the adapter.
+ * If HCAMs are currently not allowed to be issued to the adapter, it will
+ * place the hostrcb on the free queue.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
+			  struct ipr_hostrcb *hostrcb)
+{
+	struct ipr_cmnd *ipr_cmd;
+	struct ipr_ioarcb *ioarcb;
+
+	if (ioa_cfg->allow_cmds) {
+		ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+		list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
+		list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
+
+		ipr_cmd->u.hostrcb = hostrcb;
+		ioarcb = &ipr_cmd->ioarcb;
+
+		ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+		ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
+		ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
+		ioarcb->cmd_pkt.cdb[1] = type;
+		ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
+		ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
+
+		ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
+		ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+		ipr_cmd->ioadl[0].flags_and_data_len =
+			cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
+		ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
+
+		if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
+			ipr_cmd->done = ipr_process_ccn;
+		else
+			ipr_cmd->done = ipr_process_error;
+
+		ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
+
+		mb();
+		writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
+		       ioa_cfg->regs.ioarrin_reg);
+	} else {
+		list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
+	}
+}
+
+/**
+ * ipr_init_res_entry - Initialize a resource entry struct.
+ * @res:	resource entry struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_init_res_entry(struct ipr_resource_entry *res)
+{
+	res->needs_sync_complete = 1;
+	res->in_erp = 0;
+	res->add_to_ml = 0;
+	res->del_from_ml = 0;
+	res->resetting_device = 0;
+	res->sdev = NULL;
+}
+
+/**
+ * ipr_handle_config_change - Handle a config change from the adapter
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
+			      struct ipr_hostrcb *hostrcb)
+{
+	struct ipr_resource_entry *res = NULL;
+	struct ipr_config_table_entry *cfgte;
+	u32 is_ndn = 1;
+
+	cfgte = &hostrcb->hcam.u.ccn.cfgte;
+
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
+			    sizeof(cfgte->res_addr))) {
+			is_ndn = 0;
+			break;
+		}
+	}
+
+	if (is_ndn) {
+		if (list_empty(&ioa_cfg->free_res_q)) {
+			ipr_send_hcam(ioa_cfg,
+				      IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
+				      hostrcb);
+			return;
+		}
+
+		res = list_entry(ioa_cfg->free_res_q.next,
+				 struct ipr_resource_entry, queue);
+
+		list_del(&res->queue);
+		ipr_init_res_entry(res);
+		list_add_tail(&res->queue, &ioa_cfg->used_res_q);
+	}
+
+	memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
+
+	if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
+		if (res->sdev) {
+			res->sdev->hostdata = NULL;
+			res->del_from_ml = 1;
+			if (ioa_cfg->allow_ml_add_del)
+				schedule_work(&ioa_cfg->work_q);
+		} else
+			list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+	} else if (!res->sdev) {
+		res->add_to_ml = 1;
+		if (ioa_cfg->allow_ml_add_del)
+			schedule_work(&ioa_cfg->work_q);
+	}
+
+	ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
+}
+
+/**
+ * ipr_process_ccn - Op done function for a CCN.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is the op done function for a configuration
+ * change notification host controlled async from the adapter.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	list_del(&hostrcb->queue);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+
+	if (ioasc) {
+		if (ioasc != IPR_IOASC_IOA_WAS_RESET)
+			dev_err(&ioa_cfg->pdev->dev,
+				"Host RCB failed with IOASC: 0x%08X\n", ioasc);
+
+		ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
+	} else {
+		ipr_handle_config_change(ioa_cfg, hostrcb);
+	}
+}
+
+/**
+ * ipr_log_vpd - Log the passed VPD to the error log.
+ * @vpids:			vendor/product id struct
+ * @serial_num:		serial number string
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_vpd(struct ipr_std_inq_vpids *vpids, u8 *serial_num)
+{
+	char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
+		    + IPR_SERIAL_NUM_LEN];
+
+	memcpy(buffer, vpids->vendor_id, IPR_VENDOR_ID_LEN);
+	memcpy(buffer + IPR_VENDOR_ID_LEN, vpids->product_id,
+	       IPR_PROD_ID_LEN);
+	buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
+	ipr_err("Vendor/Product ID: %s\n", buffer);
+
+	memcpy(buffer, serial_num, IPR_SERIAL_NUM_LEN);
+	buffer[IPR_SERIAL_NUM_LEN] = '\0';
+	ipr_err("    Serial Number: %s\n", buffer);
+}
+
+/**
+ * ipr_log_cache_error - Log a cache error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
+				struct ipr_hostrcb *hostrcb)
+{
+	struct ipr_hostrcb_type_02_error *error =
+		&hostrcb->hcam.u.error.u.type_02_error;
+
+	ipr_err("-----Current Configuration-----\n");
+	ipr_err("Cache Directory Card Information:\n");
+	ipr_log_vpd(&error->ioa_vpids, error->ioa_sn);
+	ipr_err("Adapter Card Information:\n");
+	ipr_log_vpd(&error->cfc_vpids, error->cfc_sn);
+
+	ipr_err("-----Expected Configuration-----\n");
+	ipr_err("Cache Directory Card Information:\n");
+	ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpids,
+		    error->ioa_last_attached_to_cfc_sn);
+	ipr_err("Adapter Card Information:\n");
+	ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpids,
+		    error->cfc_last_attached_to_ioa_sn);
+
+	ipr_err("Additional IOA Data: %08X %08X %08X\n",
+		     be32_to_cpu(error->ioa_data[0]),
+		     be32_to_cpu(error->ioa_data[1]),
+		     be32_to_cpu(error->ioa_data[2]));
+}
+
+/**
+ * ipr_log_config_error - Log a configuration error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
+				 struct ipr_hostrcb *hostrcb)
+{
+	int errors_logged, i;
+	struct ipr_hostrcb_device_data_entry *dev_entry;
+	struct ipr_hostrcb_type_03_error *error;
+
+	error = &hostrcb->hcam.u.error.u.type_03_error;
+	errors_logged = be32_to_cpu(error->errors_logged);
+
+	ipr_err("Device Errors Detected/Logged: %d/%d\n",
+		be32_to_cpu(error->errors_detected), errors_logged);
+
+	dev_entry = error->dev_entry;
+
+	for (i = 0; i < errors_logged; i++, dev_entry++) {
+		ipr_err_separator;
+
+		if (dev_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
+			ipr_err("Device %d: missing\n", i + 1);
+		} else {
+			ipr_err("Device %d: %d:%d:%d:%d\n", i + 1,
+				ioa_cfg->host->host_no, dev_entry->dev_res_addr.bus,
+				dev_entry->dev_res_addr.target, dev_entry->dev_res_addr.lun);
+		}
+		ipr_log_vpd(&dev_entry->dev_vpids, dev_entry->dev_sn);
+
+		ipr_err("-----New Device Information-----\n");
+		ipr_log_vpd(&dev_entry->new_dev_vpids, dev_entry->new_dev_sn);
+
+		ipr_err("Cache Directory Card Information:\n");
+		ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpids,
+			    dev_entry->ioa_last_with_dev_sn);
+
+		ipr_err("Adapter Card Information:\n");
+		ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpids,
+			    dev_entry->cfc_last_with_dev_sn);
+
+		ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
+			be32_to_cpu(dev_entry->ioa_data[0]),
+			be32_to_cpu(dev_entry->ioa_data[1]),
+			be32_to_cpu(dev_entry->ioa_data[2]),
+			be32_to_cpu(dev_entry->ioa_data[3]),
+			be32_to_cpu(dev_entry->ioa_data[4]));
+	}
+}
+
+/**
+ * ipr_log_array_error - Log an array configuration error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
+				struct ipr_hostrcb *hostrcb)
+{
+	int i;
+	struct ipr_hostrcb_type_04_error *error;
+	struct ipr_hostrcb_array_data_entry *array_entry;
+	const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
+
+	error = &hostrcb->hcam.u.error.u.type_04_error;
+
+	ipr_err_separator;
+
+	ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
+		error->protection_level,
+		ioa_cfg->host->host_no,
+		error->last_func_vset_res_addr.bus,
+		error->last_func_vset_res_addr.target,
+		error->last_func_vset_res_addr.lun);
+
+	ipr_err_separator;
+
+	array_entry = error->array_member;
+
+	for (i = 0; i < 18; i++) {
+		if (!memcmp(array_entry->serial_num, zero_sn, IPR_SERIAL_NUM_LEN))
+			continue;
+
+		if (be32_to_cpu(error->exposed_mode_adn) == i) {
+			ipr_err("Exposed Array Member %d:\n", i);
+		} else {
+			ipr_err("Array Member %d:\n", i);
+		}
+
+		ipr_log_vpd(&array_entry->vpids, array_entry->serial_num);
+
+		if (array_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
+			ipr_err("Current Location: unknown\n");
+		} else {
+			ipr_err("Current Location: %d:%d:%d:%d\n",
+				ioa_cfg->host->host_no,
+				array_entry->dev_res_addr.bus,
+				array_entry->dev_res_addr.target,
+				array_entry->dev_res_addr.lun);
+		}
+
+		if (array_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
+			ipr_err("Expected Location: unknown\n");
+		} else {
+			ipr_err("Expected Location: %d:%d:%d:%d\n",
+				ioa_cfg->host->host_no,
+				array_entry->expected_dev_res_addr.bus,
+				array_entry->expected_dev_res_addr.target,
+				array_entry->expected_dev_res_addr.lun);
+		}
+
+		ipr_err_separator;
+
+		if (i == 9)
+			array_entry = error->array_member2;
+		else
+			array_entry++;
+	}
+}
+
+/**
+ * ipr_log_generic_error - Log an adapter error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
+				  struct ipr_hostrcb *hostrcb)
+{
+	int i;
+	int ioa_data_len = be32_to_cpu(hostrcb->hcam.length);
+
+	if (ioa_data_len == 0)
+		return;
+
+	ipr_err("IOA Error Data:\n");
+	ipr_err("Offset    0 1 2 3  4 5 6 7  8 9 A B  C D E F\n");
+
+	for (i = 0; i < ioa_data_len / 4; i += 4) {
+		ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
+			be32_to_cpu(hostrcb->hcam.u.raw.data[i]),
+			be32_to_cpu(hostrcb->hcam.u.raw.data[i+1]),
+			be32_to_cpu(hostrcb->hcam.u.raw.data[i+2]),
+			be32_to_cpu(hostrcb->hcam.u.raw.data[i+3]));
+	}
+}
+
+/**
+ * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
+ * @ioasc:	IOASC
+ *
+ * This function will return the index of into the ipr_error_table
+ * for the specified IOASC. If the IOASC is not in the table,
+ * 0 will be returned, which points to the entry used for unknown errors.
+ *
+ * Return value:
+ * 	index into the ipr_error_table
+ **/
+static u32 ipr_get_error(u32 ioasc)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
+		if (ipr_error_table[i].ioasc == ioasc)
+			return i;
+
+	return 0;
+}
+
+/**
+ * ipr_handle_log_data - Log an adapter error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * This function logs an adapter error to the system.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
+				struct ipr_hostrcb *hostrcb)
+{
+	u32 ioasc;
+	int error_index;
+
+	if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
+		return;
+
+	if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
+		dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
+
+	ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
+
+	if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
+	    ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
+		/* Tell the midlayer we had a bus reset so it will handle the UA properly */
+		scsi_report_bus_reset(ioa_cfg->host,
+				      hostrcb->hcam.u.error.failing_dev_res_addr.bus);
+	}
+
+	error_index = ipr_get_error(ioasc);
+
+	if (!ipr_error_table[error_index].log_hcam)
+		return;
+
+	if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) {
+		ipr_res_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr,
+			    "%s\n", ipr_error_table[error_index].error);
+	} else {
+		dev_err(&ioa_cfg->pdev->dev, "%s\n",
+			ipr_error_table[error_index].error);
+	}
+
+	/* Set indication we have logged an error */
+	ioa_cfg->errors_logged++;
+
+	if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
+		return;
+
+	switch (hostrcb->hcam.overlay_id) {
+	case IPR_HOST_RCB_OVERLAY_ID_1:
+		ipr_log_generic_error(ioa_cfg, hostrcb);
+		break;
+	case IPR_HOST_RCB_OVERLAY_ID_2:
+		ipr_log_cache_error(ioa_cfg, hostrcb);
+		break;
+	case IPR_HOST_RCB_OVERLAY_ID_3:
+		ipr_log_config_error(ioa_cfg, hostrcb);
+		break;
+	case IPR_HOST_RCB_OVERLAY_ID_4:
+	case IPR_HOST_RCB_OVERLAY_ID_6:
+		ipr_log_array_error(ioa_cfg, hostrcb);
+		break;
+	case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
+		ipr_log_generic_error(ioa_cfg, hostrcb);
+		break;
+	default:
+		dev_err(&ioa_cfg->pdev->dev,
+			"Unknown error received. Overlay ID: %d\n",
+			hostrcb->hcam.overlay_id);
+		break;
+	}
+}
+
+/**
+ * ipr_process_error - Op done function for an adapter error log.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is the op done function for an error log host
+ * controlled async from the adapter. It will log the error and
+ * send the HCAM back to the adapter.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	list_del(&hostrcb->queue);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+
+	if (!ioasc) {
+		ipr_handle_log_data(ioa_cfg, hostrcb);
+	} else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Host RCB failed with IOASC: 0x%08X\n", ioasc);
+	}
+
+	ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
+}
+
+/**
+ * ipr_timeout -  An internally generated op has timed out.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function blocks host requests and initiates an
+ * adapter reset.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
+{
+	unsigned long lock_flags = 0;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	ioa_cfg->errors_logged++;
+	dev_err(&ioa_cfg->pdev->dev,
+		"Adapter being reset due to command timeout.\n");
+
+	if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
+		ioa_cfg->sdt_state = GET_DUMP;
+
+	if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
+		ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	LEAVE;
+}
+
+/**
+ * ipr_oper_timeout -  Adapter timed out transitioning to operational
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function blocks host requests and initiates an
+ * adapter reset.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
+{
+	unsigned long lock_flags = 0;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	ioa_cfg->errors_logged++;
+	dev_err(&ioa_cfg->pdev->dev,
+		"Adapter timed out transitioning to operational.\n");
+
+	if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
+		ioa_cfg->sdt_state = GET_DUMP;
+
+	if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
+		if (ipr_fastfail)
+			ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
+		ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+	}
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	LEAVE;
+}
+
+/**
+ * ipr_reset_reload - Reset/Reload the IOA
+ * @ioa_cfg:		ioa config struct
+ * @shutdown_type:	shutdown type
+ *
+ * This function resets the adapter and re-initializes it.
+ * This function assumes that all new host commands have been stopped.
+ * Return value:
+ * 	SUCCESS / FAILED
+ **/
+static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
+			    enum ipr_shutdown_type shutdown_type)
+{
+	if (!ioa_cfg->in_reset_reload)
+		ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
+
+	spin_unlock_irq(ioa_cfg->host->host_lock);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+	spin_lock_irq(ioa_cfg->host->host_lock);
+
+	/* If we got hit with a host reset while we were already resetting
+	 the adapter for some reason, and the reset failed. */
+	if (ioa_cfg->ioa_is_dead) {
+		ipr_trace;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+/**
+ * ipr_find_ses_entry - Find matching SES in SES table
+ * @res:	resource entry struct of SES
+ *
+ * Return value:
+ * 	pointer to SES table entry / NULL on failure
+ **/
+static const struct ipr_ses_table_entry *
+ipr_find_ses_entry(struct ipr_resource_entry *res)
+{
+	int i, j, matches;
+	const struct ipr_ses_table_entry *ste = ipr_ses_table;
+
+	for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
+		for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
+			if (ste->compare_product_id_byte[j] == 'X') {
+				if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
+					matches++;
+				else
+					break;
+			} else
+				matches++;
+		}
+
+		if (matches == IPR_PROD_ID_LEN)
+			return ste;
+	}
+
+	return NULL;
+}
+
+/**
+ * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
+ * @ioa_cfg:	ioa config struct
+ * @bus:		SCSI bus
+ * @bus_width:	bus width
+ *
+ * Return value:
+ *	SCSI bus speed in units of 100KHz, 1600 is 160 MHz
+ *	For a 2-byte wide SCSI bus, the maximum transfer speed is
+ *	twice the maximum transfer rate (e.g. for a wide enabled bus,
+ *	max 160MHz = max 320MB/sec).
+ **/
+static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
+{
+	struct ipr_resource_entry *res;
+	const struct ipr_ses_table_entry *ste;
+	u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
+
+	/* Loop through each config table entry in the config table buffer */
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
+			continue;
+
+		if (bus != res->cfgte.res_addr.bus)
+			continue;
+
+		if (!(ste = ipr_find_ses_entry(res)))
+			continue;
+
+		max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
+	}
+
+	return max_xfer_rate;
+}
+
+/**
+ * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
+ * @ioa_cfg:		ioa config struct
+ * @max_delay:		max delay in micro-seconds to wait
+ *
+ * Waits for an IODEBUG ACK from the IOA, doing busy looping.
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
+{
+	volatile u32 pcii_reg;
+	int delay = 1;
+
+	/* Read interrupt reg until IOA signals IO Debug Acknowledge */
+	while (delay < max_delay) {
+		pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+
+		if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
+			return 0;
+
+		/* udelay cannot be used if delay is more than a few milliseconds */
+		if ((delay / 1000) > MAX_UDELAY_MS)
+			mdelay(delay / 1000);
+		else
+			udelay(delay);
+
+		delay += delay;
+	}
+	return -EIO;
+}
+
+/**
+ * ipr_get_ldump_data_section - Dump IOA memory
+ * @ioa_cfg:			ioa config struct
+ * @start_addr:			adapter address to dump
+ * @dest:				destination kernel buffer
+ * @length_in_words:	length to dump in 4 byte words
+ *
+ * Return value:
+ * 	0 on success / -EIO on failure
+ **/
+static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
+				      u32 start_addr,
+				      __be32 *dest, u32 length_in_words)
+{
+	volatile u32 temp_pcii_reg;
+	int i, delay = 0;
+
+	/* Write IOA interrupt reg starting LDUMP state  */
+	writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
+	       ioa_cfg->regs.set_uproc_interrupt_reg);
+
+	/* Wait for IO debug acknowledge */
+	if (ipr_wait_iodbg_ack(ioa_cfg,
+			       IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"IOA dump long data transfer timeout\n");
+		return -EIO;
+	}
+
+	/* Signal LDUMP interlocked - clear IO debug ack */
+	writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
+	       ioa_cfg->regs.clr_interrupt_reg);
+
+	/* Write Mailbox with starting address */
+	writel(start_addr, ioa_cfg->ioa_mailbox);
+
+	/* Signal address valid - clear IOA Reset alert */
+	writel(IPR_UPROCI_RESET_ALERT,
+	       ioa_cfg->regs.clr_uproc_interrupt_reg);
+
+	for (i = 0; i < length_in_words; i++) {
+		/* Wait for IO debug acknowledge */
+		if (ipr_wait_iodbg_ack(ioa_cfg,
+				       IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
+			dev_err(&ioa_cfg->pdev->dev,
+				"IOA dump short data transfer timeout\n");
+			return -EIO;
+		}
+
+		/* Read data from mailbox and increment destination pointer */
+		*dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
+		dest++;
+
+		/* For all but the last word of data, signal data received */
+		if (i < (length_in_words - 1)) {
+			/* Signal dump data received - Clear IO debug Ack */
+			writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
+			       ioa_cfg->regs.clr_interrupt_reg);
+		}
+	}
+
+	/* Signal end of block transfer. Set reset alert then clear IO debug ack */
+	writel(IPR_UPROCI_RESET_ALERT,
+	       ioa_cfg->regs.set_uproc_interrupt_reg);
+
+	writel(IPR_UPROCI_IO_DEBUG_ALERT,
+	       ioa_cfg->regs.clr_uproc_interrupt_reg);
+
+	/* Signal dump data received - Clear IO debug Ack */
+	writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
+	       ioa_cfg->regs.clr_interrupt_reg);
+
+	/* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
+	while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
+		temp_pcii_reg =
+		    readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
+
+		if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
+			return 0;
+
+		udelay(10);
+		delay += 10;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_SCSI_IPR_DUMP
+/**
+ * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
+ * @ioa_cfg:		ioa config struct
+ * @pci_address:	adapter address
+ * @length:			length of data to copy
+ *
+ * Copy data from PCI adapter to kernel buffer.
+ * Note: length MUST be a 4 byte multiple
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
+			unsigned long pci_address, u32 length)
+{
+	int bytes_copied = 0;
+	int cur_len, rc, rem_len, rem_page_len;
+	__be32 *page;
+	unsigned long lock_flags = 0;
+	struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
+
+	while (bytes_copied < length &&
+	       (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
+		if (ioa_dump->page_offset >= PAGE_SIZE ||
+		    ioa_dump->page_offset == 0) {
+			page = (__be32 *)__get_free_page(GFP_ATOMIC);
+
+			if (!page) {
+				ipr_trace;
+				return bytes_copied;
+			}
+
+			ioa_dump->page_offset = 0;
+			ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
+			ioa_dump->next_page_index++;
+		} else
+			page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
+
+		rem_len = length - bytes_copied;
+		rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
+		cur_len = min(rem_len, rem_page_len);
+
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+		if (ioa_cfg->sdt_state == ABORT_DUMP) {
+			rc = -EIO;
+		} else {
+			rc = ipr_get_ldump_data_section(ioa_cfg,
+							pci_address + bytes_copied,
+							&page[ioa_dump->page_offset / 4],
+							(cur_len / sizeof(u32)));
+		}
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+		if (!rc) {
+			ioa_dump->page_offset += cur_len;
+			bytes_copied += cur_len;
+		} else {
+			ipr_trace;
+			break;
+		}
+		schedule();
+	}
+
+	return bytes_copied;
+}
+
+/**
+ * ipr_init_dump_entry_hdr - Initialize a dump entry header.
+ * @hdr:	dump entry header struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
+{
+	hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
+	hdr->num_elems = 1;
+	hdr->offset = sizeof(*hdr);
+	hdr->status = IPR_DUMP_STATUS_SUCCESS;
+}
+
+/**
+ * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
+ * @ioa_cfg:	ioa config struct
+ * @driver_dump:	driver dump struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
+				   struct ipr_driver_dump *driver_dump)
+{
+	struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
+
+	ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
+	driver_dump->ioa_type_entry.hdr.len =
+		sizeof(struct ipr_dump_ioa_type_entry) -
+		sizeof(struct ipr_dump_entry_header);
+	driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
+	driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
+	driver_dump->ioa_type_entry.type = ioa_cfg->type;
+	driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
+		(ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
+		ucode_vpd->minor_release[1];
+	driver_dump->hdr.num_entries++;
+}
+
+/**
+ * ipr_dump_version_data - Fill in the driver version in the dump.
+ * @ioa_cfg:	ioa config struct
+ * @driver_dump:	driver dump struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
+				  struct ipr_driver_dump *driver_dump)
+{
+	ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
+	driver_dump->version_entry.hdr.len =
+		sizeof(struct ipr_dump_version_entry) -
+		sizeof(struct ipr_dump_entry_header);
+	driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
+	driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
+	strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
+	driver_dump->hdr.num_entries++;
+}
+
+/**
+ * ipr_dump_trace_data - Fill in the IOA trace in the dump.
+ * @ioa_cfg:	ioa config struct
+ * @driver_dump:	driver dump struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
+				   struct ipr_driver_dump *driver_dump)
+{
+	ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
+	driver_dump->trace_entry.hdr.len =
+		sizeof(struct ipr_dump_trace_entry) -
+		sizeof(struct ipr_dump_entry_header);
+	driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
+	driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
+	memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
+	driver_dump->hdr.num_entries++;
+}
+
+/**
+ * ipr_dump_location_data - Fill in the IOA location in the dump.
+ * @ioa_cfg:	ioa config struct
+ * @driver_dump:	driver dump struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
+				   struct ipr_driver_dump *driver_dump)
+{
+	ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
+	driver_dump->location_entry.hdr.len =
+		sizeof(struct ipr_dump_location_entry) -
+		sizeof(struct ipr_dump_entry_header);
+	driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
+	driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
+	strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id);
+	driver_dump->hdr.num_entries++;
+}
+
+/**
+ * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
+ * @ioa_cfg:	ioa config struct
+ * @dump:		dump struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
+{
+	unsigned long start_addr, sdt_word;
+	unsigned long lock_flags = 0;
+	struct ipr_driver_dump *driver_dump = &dump->driver_dump;
+	struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
+	u32 num_entries, start_off, end_off;
+	u32 bytes_to_copy, bytes_copied, rc;
+	struct ipr_sdt *sdt;
+	int i;
+
+	ENTER;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	if (ioa_cfg->sdt_state != GET_DUMP) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return;
+	}
+
+	start_addr = readl(ioa_cfg->ioa_mailbox);
+
+	if (!ipr_sdt_is_fmt2(start_addr)) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Invalid dump table format: %lx\n", start_addr);
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return;
+	}
+
+	dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
+
+	driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
+
+	/* Initialize the overall dump header */
+	driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
+	driver_dump->hdr.num_entries = 1;
+	driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
+	driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
+	driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
+	driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
+
+	ipr_dump_version_data(ioa_cfg, driver_dump);
+	ipr_dump_location_data(ioa_cfg, driver_dump);
+	ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
+	ipr_dump_trace_data(ioa_cfg, driver_dump);
+
+	/* Update dump_header */
+	driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
+
+	/* IOA Dump entry */
+	ipr_init_dump_entry_hdr(&ioa_dump->hdr);
+	ioa_dump->format = IPR_SDT_FMT2;
+	ioa_dump->hdr.len = 0;
+	ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
+	ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
+
+	/* First entries in sdt are actually a list of dump addresses and
+	 lengths to gather the real dump data.  sdt represents the pointer
+	 to the ioa generated dump table.  Dump data will be extracted based
+	 on entries in this table */
+	sdt = &ioa_dump->sdt;
+
+	rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
+					sizeof(struct ipr_sdt) / sizeof(__be32));
+
+	/* Smart Dump table is ready to use and the first entry is valid */
+	if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Dump of IOA failed. Dump table not valid: %d, %X.\n",
+			rc, be32_to_cpu(sdt->hdr.state));
+		driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
+		ioa_cfg->sdt_state = DUMP_OBTAINED;
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return;
+	}
+
+	num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
+
+	if (num_entries > IPR_NUM_SDT_ENTRIES)
+		num_entries = IPR_NUM_SDT_ENTRIES;
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	for (i = 0; i < num_entries; i++) {
+		if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
+			driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
+			break;
+		}
+
+		if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
+			sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
+			start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
+			end_off = be32_to_cpu(sdt->entry[i].end_offset);
+
+			if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
+				bytes_to_copy = end_off - start_off;
+				if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
+					sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
+					continue;
+				}
+
+				/* Copy data from adapter to driver buffers */
+				bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
+							    bytes_to_copy);
+
+				ioa_dump->hdr.len += bytes_copied;
+
+				if (bytes_copied != bytes_to_copy) {
+					driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
+					break;
+				}
+			}
+		}
+	}
+
+	dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
+
+	/* Update dump_header */
+	driver_dump->hdr.len += ioa_dump->hdr.len;
+	wmb();
+	ioa_cfg->sdt_state = DUMP_OBTAINED;
+	LEAVE;
+}
+
+#else
+#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
+#endif
+
+/**
+ * ipr_release_dump - Free adapter dump memory
+ * @kref:	kref struct
+ *
+ * Return value:
+ *	nothing
+ **/
+static void ipr_release_dump(struct kref *kref)
+{
+	struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
+	struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
+	unsigned long lock_flags = 0;
+	int i;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ioa_cfg->dump = NULL;
+	ioa_cfg->sdt_state = INACTIVE;
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	for (i = 0; i < dump->ioa_dump.next_page_index; i++)
+		free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
+
+	kfree(dump);
+	LEAVE;
+}
+
+/**
+ * ipr_worker_thread - Worker thread
+ * @data:		ioa config struct
+ *
+ * Called at task level from a work thread. This function takes care
+ * of adding and removing device from the mid-layer as configuration
+ * changes are detected by the adapter.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_worker_thread(void *data)
+{
+	unsigned long lock_flags;
+	struct ipr_resource_entry *res;
+	struct scsi_device *sdev;
+	struct ipr_dump *dump;
+	struct ipr_ioa_cfg *ioa_cfg = data;
+	u8 bus, target, lun;
+	int did_work;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	if (ioa_cfg->sdt_state == GET_DUMP) {
+		dump = ioa_cfg->dump;
+		if (!dump) {
+			spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+			return;
+		}
+		kref_get(&dump->kref);
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		ipr_get_ioa_dump(ioa_cfg, dump);
+		kref_put(&dump->kref, ipr_release_dump);
+
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+		if (ioa_cfg->sdt_state == DUMP_OBTAINED)
+			ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return;
+	}
+
+restart:
+	do {
+		did_work = 0;
+		if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
+			spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+			return;
+		}
+
+		list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+			if (res->del_from_ml && res->sdev) {
+				did_work = 1;
+				sdev = res->sdev;
+				if (!scsi_device_get(sdev)) {
+					res->sdev = NULL;
+					list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+					spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+					scsi_remove_device(sdev);
+					scsi_device_put(sdev);
+					spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+				}
+				break;
+			}
+		}
+	} while(did_work);
+
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if (res->add_to_ml) {
+			bus = res->cfgte.res_addr.bus;
+			target = res->cfgte.res_addr.target;
+			lun = res->cfgte.res_addr.lun;
+			spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+			scsi_add_device(ioa_cfg->host, bus, target, lun);
+			spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+			goto restart;
+		}
+	}
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE, NULL);
+	LEAVE;
+}
+
+#ifdef CONFIG_SCSI_IPR_TRACE
+/**
+ * ipr_read_trace - Dump the adapter trace
+ * @kobj:		kobject struct
+ * @buf:		buffer
+ * @off:		offset
+ * @count:		buffer size
+ *
+ * Return value:
+ *	number of bytes printed to buffer
+ **/
+static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
+			      loff_t off, size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	unsigned long lock_flags = 0;
+	int size = IPR_TRACE_SIZE;
+	char *src = (char *)ioa_cfg->trace;
+
+	if (off > size)
+		return 0;
+	if (off + count > size) {
+		size -= off;
+		count = size;
+	}
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	memcpy(buf, &src[off], count);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return count;
+}
+
+static struct bin_attribute ipr_trace_attr = {
+	.attr =	{
+		.name = "trace",
+		.mode = S_IRUGO,
+	},
+	.size = 0,
+	.read = ipr_read_trace,
+};
+#endif
+
+/**
+ * ipr_show_fw_version - Show the firmware version
+ * @class_dev:	class device struct
+ * @buf:		buffer
+ *
+ * Return value:
+ *	number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
+	unsigned long lock_flags = 0;
+	int len;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
+		       ucode_vpd->major_release, ucode_vpd->card_type,
+		       ucode_vpd->minor_release[0],
+		       ucode_vpd->minor_release[1]);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return len;
+}
+
+static struct class_device_attribute ipr_fw_version_attr = {
+	.attr = {
+		.name =		"fw_version",
+		.mode =		S_IRUGO,
+	},
+	.show = ipr_show_fw_version,
+};
+
+/**
+ * ipr_show_log_level - Show the adapter's error logging level
+ * @class_dev:	class device struct
+ * @buf:		buffer
+ *
+ * Return value:
+ * 	number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	unsigned long lock_flags = 0;
+	int len;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return len;
+}
+
+/**
+ * ipr_store_log_level - Change the adapter's error logging level
+ * @class_dev:	class device struct
+ * @buf:		buffer
+ *
+ * Return value:
+ * 	number of bytes printed to buffer
+ **/
+static ssize_t ipr_store_log_level(struct class_device *class_dev,
+				   const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	unsigned long lock_flags = 0;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return strlen(buf);
+}
+
+static struct class_device_attribute ipr_log_level_attr = {
+	.attr = {
+		.name =		"log_level",
+		.mode =		S_IRUGO | S_IWUSR,
+	},
+	.show = ipr_show_log_level,
+	.store = ipr_store_log_level
+};
+
+/**
+ * ipr_store_diagnostics - IOA Diagnostics interface
+ * @class_dev:	class_device struct
+ * @buf:		buffer
+ * @count:		buffer size
+ *
+ * This function will reset the adapter and wait a reasonable
+ * amount of time for any errors that the adapter might log.
+ *
+ * Return value:
+ * 	count on success / other on failure
+ **/
+static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
+				     const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	unsigned long lock_flags = 0;
+	int rc = count;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ioa_cfg->errors_logged = 0;
+	ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+
+	if (ioa_cfg->in_reset_reload) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+		/* Wait for a second for any errors to be logged */
+		msleep(1000);
+	} else {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return -EIO;
+	}
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
+		rc = -EIO;
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	return rc;
+}
+
+static struct class_device_attribute ipr_diagnostics_attr = {
+	.attr = {
+		.name =		"run_diagnostics",
+		.mode =		S_IWUSR,
+	},
+	.store = ipr_store_diagnostics
+};
+
+/**
+ * ipr_store_reset_adapter - Reset the adapter
+ * @class_dev:	class_device struct
+ * @buf:		buffer
+ * @count:		buffer size
+ *
+ * This function will reset the adapter.
+ *
+ * Return value:
+ * 	count on success / other on failure
+ **/
+static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
+				       const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	unsigned long lock_flags;
+	int result = count;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	if (!ioa_cfg->in_reset_reload)
+		ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+	return result;
+}
+
+static struct class_device_attribute ipr_ioa_reset_attr = {
+	.attr = {
+		.name =		"reset_host",
+		.mode =		S_IWUSR,
+	},
+	.store = ipr_store_reset_adapter
+};
+
+/**
+ * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
+ * @buf_len:		buffer length
+ *
+ * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
+ * list to use for microcode download
+ *
+ * Return value:
+ * 	pointer to sglist / NULL on failure
+ **/
+static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
+{
+	int sg_size, order, bsize_elem, num_elem, i, j;
+	struct ipr_sglist *sglist;
+	struct scatterlist *scatterlist;
+	struct page *page;
+
+	/* Get the minimum size per scatter/gather element */
+	sg_size = buf_len / (IPR_MAX_SGLIST - 1);
+
+	/* Get the actual size per element */
+	order = get_order(sg_size);
+
+	/* Determine the actual number of bytes per element */
+	bsize_elem = PAGE_SIZE * (1 << order);
+
+	/* Determine the actual number of sg entries needed */
+	if (buf_len % bsize_elem)
+		num_elem = (buf_len / bsize_elem) + 1;
+	else
+		num_elem = buf_len / bsize_elem;
+
+	/* Allocate a scatter/gather list for the DMA */
+	sglist = kmalloc(sizeof(struct ipr_sglist) +
+			 (sizeof(struct scatterlist) * (num_elem - 1)),
+			 GFP_KERNEL);
+
+	if (sglist == NULL) {
+		ipr_trace;
+		return NULL;
+	}
+
+	memset(sglist, 0, sizeof(struct ipr_sglist) +
+	       (sizeof(struct scatterlist) * (num_elem - 1)));
+
+	scatterlist = sglist->scatterlist;
+
+	sglist->order = order;
+	sglist->num_sg = num_elem;
+
+	/* Allocate a bunch of sg elements */
+	for (i = 0; i < num_elem; i++) {
+		page = alloc_pages(GFP_KERNEL, order);
+		if (!page) {
+			ipr_trace;
+
+			/* Free up what we already allocated */
+			for (j = i - 1; j >= 0; j--)
+				__free_pages(scatterlist[j].page, order);
+			kfree(sglist);
+			return NULL;
+		}
+
+		scatterlist[i].page = page;
+	}
+
+	return sglist;
+}
+
+/**
+ * ipr_free_ucode_buffer - Frees a microcode download buffer
+ * @p_dnld:		scatter/gather list pointer
+ *
+ * Free a DMA'able ucode download buffer previously allocated with
+ * ipr_alloc_ucode_buffer
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
+{
+	int i;
+
+	for (i = 0; i < sglist->num_sg; i++)
+		__free_pages(sglist->scatterlist[i].page, sglist->order);
+
+	kfree(sglist);
+}
+
+/**
+ * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
+ * @sglist:		scatter/gather list pointer
+ * @buffer:		buffer pointer
+ * @len:		buffer length
+ *
+ * Copy a microcode image from a user buffer into a buffer allocated by
+ * ipr_alloc_ucode_buffer
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
+				 u8 *buffer, u32 len)
+{
+	int bsize_elem, i, result = 0;
+	struct scatterlist *scatterlist;
+	void *kaddr;
+
+	/* Determine the actual number of bytes per element */
+	bsize_elem = PAGE_SIZE * (1 << sglist->order);
+
+	scatterlist = sglist->scatterlist;
+
+	for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
+		kaddr = kmap(scatterlist[i].page);
+		memcpy(kaddr, buffer, bsize_elem);
+		kunmap(scatterlist[i].page);
+
+		scatterlist[i].length = bsize_elem;
+
+		if (result != 0) {
+			ipr_trace;
+			return result;
+		}
+	}
+
+	if (len % bsize_elem) {
+		kaddr = kmap(scatterlist[i].page);
+		memcpy(kaddr, buffer, len % bsize_elem);
+		kunmap(scatterlist[i].page);
+
+		scatterlist[i].length = len % bsize_elem;
+	}
+
+	sglist->buffer_len = len;
+	return result;
+}
+
+/**
+ * ipr_map_ucode_buffer - Map a microcode download buffer
+ * @ipr_cmd:	ipr command struct
+ * @sglist:		scatter/gather list
+ * @len:		total length of download buffer
+ *
+ * Maps a microcode download scatter/gather list for DMA and
+ * builds the IOADL.
+ *
+ * Return value:
+ * 	0 on success / -EIO on failure
+ **/
+static int ipr_map_ucode_buffer(struct ipr_cmnd *ipr_cmd,
+				struct ipr_sglist *sglist, int len)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+	struct scatterlist *scatterlist = sglist->scatterlist;
+	int i;
+
+	ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, scatterlist,
+					 sglist->num_sg, DMA_TO_DEVICE);
+
+	ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+	ioarcb->write_data_transfer_length = cpu_to_be32(len);
+	ioarcb->write_ioadl_len =
+		cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
+
+	for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
+		ioadl[i].flags_and_data_len =
+			cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
+		ioadl[i].address =
+			cpu_to_be32(sg_dma_address(&scatterlist[i]));
+	}
+
+	if (likely(ipr_cmd->dma_use_sg)) {
+		ioadl[i-1].flags_and_data_len |=
+			cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+	}
+	else {
+		dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/**
+ * ipr_store_update_fw - Update the firmware on the adapter
+ * @class_dev:	class_device struct
+ * @buf:		buffer
+ * @count:		buffer size
+ *
+ * This function will update the firmware on the adapter.
+ *
+ * Return value:
+ * 	count on success / other on failure
+ **/
+static ssize_t ipr_store_update_fw(struct class_device *class_dev,
+				       const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(class_dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	struct ipr_ucode_image_header *image_hdr;
+	const struct firmware *fw_entry;
+	struct ipr_sglist *sglist;
+	unsigned long lock_flags;
+	char fname[100];
+	char *src;
+	int len, result, dnld_size;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	len = snprintf(fname, 99, "%s", buf);
+	fname[len-1] = '\0';
+
+	if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
+		dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
+		return -EIO;
+	}
+
+	image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
+
+	if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
+	    (ioa_cfg->vpd_cbs->page3_data.card_type &&
+	     ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
+		dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
+		release_firmware(fw_entry);
+		return -EINVAL;
+	}
+
+	src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
+	dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
+	sglist = ipr_alloc_ucode_buffer(dnld_size);
+
+	if (!sglist) {
+		dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
+		release_firmware(fw_entry);
+		return -ENOMEM;
+	}
+
+	result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
+
+	if (result) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Microcode buffer copy to DMA buffer failed\n");
+		ipr_free_ucode_buffer(sglist);
+		release_firmware(fw_entry);
+		return result;
+	}
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	if (ioa_cfg->ucode_sglist) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		dev_err(&ioa_cfg->pdev->dev,
+			"Microcode download already in progress\n");
+		ipr_free_ucode_buffer(sglist);
+		release_firmware(fw_entry);
+		return -EIO;
+	}
+
+	ioa_cfg->ucode_sglist = sglist;
+	ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ioa_cfg->ucode_sglist = NULL;
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	ipr_free_ucode_buffer(sglist);
+	release_firmware(fw_entry);
+
+	return count;
+}
+
+static struct class_device_attribute ipr_update_fw_attr = {
+	.attr = {
+		.name =		"update_fw",
+		.mode =		S_IWUSR,
+	},
+	.store = ipr_store_update_fw
+};
+
+static struct class_device_attribute *ipr_ioa_attrs[] = {
+	&ipr_fw_version_attr,
+	&ipr_log_level_attr,
+	&ipr_diagnostics_attr,
+	&ipr_ioa_reset_attr,
+	&ipr_update_fw_attr,
+	NULL,
+};
+
+#ifdef CONFIG_SCSI_IPR_DUMP
+/**
+ * ipr_read_dump - Dump the adapter
+ * @kobj:		kobject struct
+ * @buf:		buffer
+ * @off:		offset
+ * @count:		buffer size
+ *
+ * Return value:
+ *	number of bytes printed to buffer
+ **/
+static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
+			      loff_t off, size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	struct ipr_dump *dump;
+	unsigned long lock_flags = 0;
+	char *src;
+	int len;
+	size_t rc = count;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	dump = ioa_cfg->dump;
+
+	if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return 0;
+	}
+	kref_get(&dump->kref);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	if (off > dump->driver_dump.hdr.len) {
+		kref_put(&dump->kref, ipr_release_dump);
+		return 0;
+	}
+
+	if (off + count > dump->driver_dump.hdr.len) {
+		count = dump->driver_dump.hdr.len - off;
+		rc = count;
+	}
+
+	if (count && off < sizeof(dump->driver_dump)) {
+		if (off + count > sizeof(dump->driver_dump))
+			len = sizeof(dump->driver_dump) - off;
+		else
+			len = count;
+		src = (u8 *)&dump->driver_dump + off;
+		memcpy(buf, src, len);
+		buf += len;
+		off += len;
+		count -= len;
+	}
+
+	off -= sizeof(dump->driver_dump);
+
+	if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
+		if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
+			len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
+		else
+			len = count;
+		src = (u8 *)&dump->ioa_dump + off;
+		memcpy(buf, src, len);
+		buf += len;
+		off += len;
+		count -= len;
+	}
+
+	off -= offsetof(struct ipr_ioa_dump, ioa_data);
+
+	while (count) {
+		if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
+			len = PAGE_ALIGN(off) - off;
+		else
+			len = count;
+		src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
+		src += off & ~PAGE_MASK;
+		memcpy(buf, src, len);
+		buf += len;
+		off += len;
+		count -= len;
+	}
+
+	kref_put(&dump->kref, ipr_release_dump);
+	return rc;
+}
+
+/**
+ * ipr_alloc_dump - Prepare for adapter dump
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ *	0 on success / other on failure
+ **/
+static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_dump *dump;
+	unsigned long lock_flags = 0;
+
+	ENTER;
+	dump = kmalloc(sizeof(struct ipr_dump), GFP_KERNEL);
+
+	if (!dump) {
+		ipr_err("Dump memory allocation failed\n");
+		return -ENOMEM;
+	}
+
+	memset(dump, 0, sizeof(struct ipr_dump));
+	kref_init(&dump->kref);
+	dump->ioa_cfg = ioa_cfg;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	if (INACTIVE != ioa_cfg->sdt_state) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		kfree(dump);
+		return 0;
+	}
+
+	ioa_cfg->dump = dump;
+	ioa_cfg->sdt_state = WAIT_FOR_DUMP;
+	if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
+		ioa_cfg->dump_taken = 1;
+		schedule_work(&ioa_cfg->work_q);
+	}
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	LEAVE;
+	return 0;
+}
+
+/**
+ * ipr_free_dump - Free adapter dump memory
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ *	0 on success / other on failure
+ **/
+static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_dump *dump;
+	unsigned long lock_flags = 0;
+
+	ENTER;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	dump = ioa_cfg->dump;
+	if (!dump) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return 0;
+	}
+
+	ioa_cfg->dump = NULL;
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	kref_put(&dump->kref, ipr_release_dump);
+
+	LEAVE;
+	return 0;
+}
+
+/**
+ * ipr_write_dump - Setup dump state of adapter
+ * @kobj:		kobject struct
+ * @buf:		buffer
+ * @off:		offset
+ * @count:		buffer size
+ *
+ * Return value:
+ *	number of bytes printed to buffer
+ **/
+static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
+			      loff_t off, size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+	int rc;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	if (buf[0] == '1')
+		rc = ipr_alloc_dump(ioa_cfg);
+	else if (buf[0] == '0')
+		rc = ipr_free_dump(ioa_cfg);
+	else
+		return -EINVAL;
+
+	if (rc)
+		return rc;
+	else
+		return count;
+}
+
+static struct bin_attribute ipr_dump_attr = {
+	.attr =	{
+		.name = "dump",
+		.mode = S_IRUSR | S_IWUSR,
+	},
+	.size = 0,
+	.read = ipr_read_dump,
+	.write = ipr_write_dump
+};
+#else
+static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
+#endif
+
+/**
+ * ipr_change_queue_depth - Change the device's queue depth
+ * @sdev:	scsi device struct
+ * @qdepth:	depth to set
+ *
+ * Return value:
+ * 	actual depth set
+ **/
+static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
+{
+	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
+	return sdev->queue_depth;
+}
+
+/**
+ * ipr_change_queue_type - Change the device's queue type
+ * @dsev:		scsi device struct
+ * @tag_type:	type of tags to use
+ *
+ * Return value:
+ * 	actual queue type set
+ **/
+static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
+{
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
+	struct ipr_resource_entry *res;
+	unsigned long lock_flags = 0;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	res = (struct ipr_resource_entry *)sdev->hostdata;
+
+	if (res) {
+		if (ipr_is_gscsi(res) && sdev->tagged_supported) {
+			/*
+			 * We don't bother quiescing the device here since the
+			 * adapter firmware does it for us.
+			 */
+			scsi_set_tag_type(sdev, tag_type);
+
+			if (tag_type)
+				scsi_activate_tcq(sdev, sdev->queue_depth);
+			else
+				scsi_deactivate_tcq(sdev, sdev->queue_depth);
+		} else
+			tag_type = 0;
+	} else
+		tag_type = 0;
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return tag_type;
+}
+
+/**
+ * ipr_show_adapter_handle - Show the adapter's resource handle for this device
+ * @dev:	device struct
+ * @buf:	buffer
+ *
+ * Return value:
+ * 	number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_adapter_handle(struct device *dev, char *buf)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
+	struct ipr_resource_entry *res;
+	unsigned long lock_flags = 0;
+	ssize_t len = -ENXIO;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	res = (struct ipr_resource_entry *)sdev->hostdata;
+	if (res)
+		len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return len;
+}
+
+static struct device_attribute ipr_adapter_handle_attr = {
+	.attr = {
+		.name = 	"adapter_handle",
+		.mode =		S_IRUSR,
+	},
+	.show = ipr_show_adapter_handle
+};
+
+static struct device_attribute *ipr_dev_attrs[] = {
+	&ipr_adapter_handle_attr,
+	NULL,
+};
+
+/**
+ * ipr_biosparam - Return the HSC mapping
+ * @sdev:			scsi device struct
+ * @block_device:	block device pointer
+ * @capacity:		capacity of the device
+ * @parm:			Array containing returned HSC values.
+ *
+ * This function generates the HSC parms that fdisk uses.
+ * We want to make sure we return something that places partitions
+ * on 4k boundaries for best performance with the IOA.
+ *
+ * Return value:
+ * 	0 on success
+ **/
+static int ipr_biosparam(struct scsi_device *sdev,
+			 struct block_device *block_device,
+			 sector_t capacity, int *parm)
+{
+	int heads, sectors;
+	sector_t cylinders;
+
+	heads = 128;
+	sectors = 32;
+
+	cylinders = capacity;
+	sector_div(cylinders, (128 * 32));
+
+	/* return result */
+	parm[0] = heads;
+	parm[1] = sectors;
+	parm[2] = cylinders;
+
+	return 0;
+}
+
+/**
+ * ipr_slave_destroy - Unconfigure a SCSI device
+ * @sdev:	scsi device struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_slave_destroy(struct scsi_device *sdev)
+{
+	struct ipr_resource_entry *res;
+	struct ipr_ioa_cfg *ioa_cfg;
+	unsigned long lock_flags = 0;
+
+	ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	res = (struct ipr_resource_entry *) sdev->hostdata;
+	if (res) {
+		sdev->hostdata = NULL;
+		res->sdev = NULL;
+	}
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+}
+
+/**
+ * ipr_slave_configure - Configure a SCSI device
+ * @sdev:	scsi device struct
+ *
+ * This function configures the specified scsi device.
+ *
+ * Return value:
+ * 	0 on success
+ **/
+static int ipr_slave_configure(struct scsi_device *sdev)
+{
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
+	struct ipr_resource_entry *res;
+	unsigned long lock_flags = 0;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	res = sdev->hostdata;
+	if (res) {
+		if (ipr_is_af_dasd_device(res))
+			sdev->type = TYPE_RAID;
+		if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res))
+			sdev->scsi_level = 4;
+		if (ipr_is_vset_device(res)) {
+			sdev->timeout = IPR_VSET_RW_TIMEOUT;
+			blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
+		}
+		if (IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data))
+			sdev->allow_restart = 1;
+		scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
+	}
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return 0;
+}
+
+/**
+ * ipr_slave_alloc - Prepare for commands to a device.
+ * @sdev:	scsi device struct
+ *
+ * This function saves a pointer to the resource entry
+ * in the scsi device struct if the device exists. We
+ * can then use this pointer in ipr_queuecommand when
+ * handling new commands.
+ *
+ * Return value:
+ * 	0 on success
+ **/
+static int ipr_slave_alloc(struct scsi_device *sdev)
+{
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
+	struct ipr_resource_entry *res;
+	unsigned long lock_flags;
+
+	sdev->hostdata = NULL;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if ((res->cfgte.res_addr.bus == sdev->channel) &&
+		    (res->cfgte.res_addr.target == sdev->id) &&
+		    (res->cfgte.res_addr.lun == sdev->lun)) {
+			res->sdev = sdev;
+			res->add_to_ml = 0;
+			res->in_erp = 0;
+			sdev->hostdata = res;
+			res->needs_sync_complete = 1;
+			break;
+		}
+	}
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	return 0;
+}
+
+/**
+ * ipr_eh_host_reset - Reset the host adapter
+ * @scsi_cmd:	scsi command struct
+ *
+ * Return value:
+ * 	SUCCESS / FAILED
+ **/
+static int ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg;
+	int rc;
+
+	ENTER;
+	ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
+
+	dev_err(&ioa_cfg->pdev->dev,
+		"Adapter being reset as a result of error recovery.\n");
+
+	if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
+		ioa_cfg->sdt_state = GET_DUMP;
+
+	rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
+
+	LEAVE;
+	return rc;
+}
+
+/**
+ * ipr_eh_dev_reset - Reset the device
+ * @scsi_cmd:	scsi command struct
+ *
+ * This function issues a device reset to the affected device.
+ * A LUN reset will be sent to the device first. If that does
+ * not work, a target reset will be sent.
+ *
+ * Return value:
+ *	SUCCESS / FAILED
+ **/
+static int ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
+{
+	struct ipr_cmnd *ipr_cmd;
+	struct ipr_ioa_cfg *ioa_cfg;
+	struct ipr_resource_entry *res;
+	struct ipr_cmd_pkt *cmd_pkt;
+	u32 ioasc;
+
+	ENTER;
+	ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
+	res = scsi_cmd->device->hostdata;
+
+	if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res)))
+		return FAILED;
+
+	/*
+	 * If we are currently going through reset/reload, return failed. This will force the
+	 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
+	 * reset to complete
+	 */
+	if (ioa_cfg->in_reset_reload)
+		return FAILED;
+	if (ioa_cfg->ioa_is_dead)
+		return FAILED;
+
+	list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
+		if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
+			if (ipr_cmd->scsi_cmd)
+				ipr_cmd->done = ipr_scsi_eh_done;
+		}
+	}
+
+	res->resetting_device = 1;
+
+	ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+
+	ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
+	cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
+	cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
+	cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
+
+	ipr_sdev_err(scsi_cmd->device, "Resetting device\n");
+	ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
+
+	ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	res->resetting_device = 0;
+
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+
+	LEAVE;
+	return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
+}
+
+/**
+ * ipr_bus_reset_done - Op done function for bus reset.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is the op done function for a bus reset
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_resource_entry *res;
+
+	ENTER;
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
+			    sizeof(res->cfgte.res_handle))) {
+			scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
+			break;
+		}
+	}
+
+	/*
+	 * If abort has not completed, indicate the reset has, else call the
+	 * abort's done function to wake the sleeping eh thread
+	 */
+	if (ipr_cmd->sibling->sibling)
+		ipr_cmd->sibling->sibling = NULL;
+	else
+		ipr_cmd->sibling->done(ipr_cmd->sibling);
+
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	LEAVE;
+}
+
+/**
+ * ipr_abort_timeout - An abort task has timed out
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function handles when an abort task times out. If this
+ * happens we issue a bus reset since we have resources tied
+ * up that must be freed before returning to the midlayer.
+ *
+ * Return value:
+ *	none
+ **/
+static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_cmnd *reset_cmd;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_cmd_pkt *cmd_pkt;
+	unsigned long lock_flags = 0;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return;
+	}
+
+	ipr_sdev_err(ipr_cmd->u.sdev, "Abort timed out. Resetting bus\n");
+	reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+	ipr_cmd->sibling = reset_cmd;
+	reset_cmd->sibling = ipr_cmd;
+	reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
+	cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
+	cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
+	cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
+	cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
+
+	ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	LEAVE;
+}
+
+/**
+ * ipr_cancel_op - Cancel specified op
+ * @scsi_cmd:	scsi command struct
+ *
+ * This function cancels specified op.
+ *
+ * Return value:
+ *	SUCCESS / FAILED
+ **/
+static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
+{
+	struct ipr_cmnd *ipr_cmd;
+	struct ipr_ioa_cfg *ioa_cfg;
+	struct ipr_resource_entry *res;
+	struct ipr_cmd_pkt *cmd_pkt;
+	u32 ioasc;
+	int op_found = 0;
+
+	ENTER;
+	ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
+	res = scsi_cmd->device->hostdata;
+
+	if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res)))
+		return FAILED;
+
+	list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
+		if (ipr_cmd->scsi_cmd == scsi_cmd) {
+			ipr_cmd->done = ipr_scsi_eh_done;
+			op_found = 1;
+			break;
+		}
+	}
+
+	if (!op_found)
+		return SUCCESS;
+
+	ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+	ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
+	cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
+	cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
+	cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
+	ipr_cmd->u.sdev = scsi_cmd->device;
+
+	ipr_sdev_err(scsi_cmd->device, "Aborting command: %02X\n", scsi_cmd->cmnd[0]);
+	ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
+	ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	/*
+	 * If the abort task timed out and we sent a bus reset, we will get
+	 * one the following responses to the abort
+	 */
+	if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
+		ioasc = 0;
+		ipr_trace;
+	}
+
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	res->needs_sync_complete = 1;
+
+	LEAVE;
+	return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
+}
+
+/**
+ * ipr_eh_abort - Abort a single op
+ * @scsi_cmd:	scsi command struct
+ *
+ * Return value:
+ * 	SUCCESS / FAILED
+ **/
+static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg;
+
+	ENTER;
+	ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
+
+	/* If we are currently going through reset/reload, return failed. This will force the
+	   mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
+	   reset to complete */
+	if (ioa_cfg->in_reset_reload)
+		return FAILED;
+	if (ioa_cfg->ioa_is_dead)
+		return FAILED;
+	if (!scsi_cmd->device->hostdata)
+		return FAILED;
+
+	LEAVE;
+	return ipr_cancel_op(scsi_cmd);
+}
+
+/**
+ * ipr_handle_other_interrupt - Handle "other" interrupts
+ * @ioa_cfg:	ioa config struct
+ * @int_reg:	interrupt register
+ *
+ * Return value:
+ * 	IRQ_NONE / IRQ_HANDLED
+ **/
+static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
+					      volatile u32 int_reg)
+{
+	irqreturn_t rc = IRQ_HANDLED;
+
+	if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
+		/* Mask the interrupt */
+		writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
+
+		/* Clear the interrupt */
+		writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
+		int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+
+		list_del(&ioa_cfg->reset_cmd->queue);
+		del_timer(&ioa_cfg->reset_cmd->timer);
+		ipr_reset_ioa_job(ioa_cfg->reset_cmd);
+	} else {
+		if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
+			ioa_cfg->ioa_unit_checked = 1;
+		else
+			dev_err(&ioa_cfg->pdev->dev,
+				"Permanent IOA failure. 0x%08X\n", int_reg);
+
+		if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
+			ioa_cfg->sdt_state = GET_DUMP;
+
+		ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
+		ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+	}
+
+	return rc;
+}
+
+/**
+ * ipr_isr - Interrupt service routine
+ * @irq:	irq number
+ * @devp:	pointer to ioa config struct
+ * @regs:	pt_regs struct
+ *
+ * Return value:
+ * 	IRQ_NONE / IRQ_HANDLED
+ **/
+static irqreturn_t ipr_isr(int irq, void *devp, struct pt_regs *regs)
+{
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
+	unsigned long lock_flags = 0;
+	volatile u32 int_reg, int_mask_reg;
+	u32 ioasc;
+	u16 cmd_index;
+	struct ipr_cmnd *ipr_cmd;
+	irqreturn_t rc = IRQ_NONE;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	/* If interrupts are disabled, ignore the interrupt */
+	if (!ioa_cfg->allow_interrupts) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return IRQ_NONE;
+	}
+
+	int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+
+	/* If an interrupt on the adapter did not occur, ignore it */
+	if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		return IRQ_NONE;
+	}
+
+	while (1) {
+		ipr_cmd = NULL;
+
+		while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
+		       ioa_cfg->toggle_bit) {
+
+			cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
+				     IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
+
+			if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
+				ioa_cfg->errors_logged++;
+				dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
+
+				if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
+					ioa_cfg->sdt_state = GET_DUMP;
+
+				ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+				spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+				return IRQ_HANDLED;
+			}
+
+			ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
+
+			ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+			ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
+
+			list_del(&ipr_cmd->queue);
+			del_timer(&ipr_cmd->timer);
+			ipr_cmd->done(ipr_cmd);
+
+			rc = IRQ_HANDLED;
+
+			if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
+				ioa_cfg->hrrq_curr++;
+			} else {
+				ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
+				ioa_cfg->toggle_bit ^= 1u;
+			}
+		}
+
+		if (ipr_cmd != NULL) {
+			/* Clear the PCI interrupt */
+			writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
+			int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+		} else
+			break;
+	}
+
+	if (unlikely(rc == IRQ_NONE))
+		rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return rc;
+}
+
+/**
+ * ipr_build_ioadl - Build a scatter/gather list and map the buffer
+ * @ioa_cfg:	ioa config struct
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ * 	0 on success / -1 on failure
+ **/
+static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
+			   struct ipr_cmnd *ipr_cmd)
+{
+	int i;
+	struct scatterlist *sglist;
+	u32 length;
+	u32 ioadl_flags = 0;
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+
+	length = scsi_cmd->request_bufflen;
+
+	if (length == 0)
+		return 0;
+
+	if (scsi_cmd->use_sg) {
+		ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev,
+						 scsi_cmd->request_buffer,
+						 scsi_cmd->use_sg,
+						 scsi_cmd->sc_data_direction);
+
+		if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
+			ioadl_flags = IPR_IOADL_FLAGS_WRITE;
+			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+			ioarcb->write_data_transfer_length = cpu_to_be32(length);
+			ioarcb->write_ioadl_len =
+				cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
+		} else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+			ioadl_flags = IPR_IOADL_FLAGS_READ;
+			ioarcb->read_data_transfer_length = cpu_to_be32(length);
+			ioarcb->read_ioadl_len =
+				cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
+		}
+
+		sglist = scsi_cmd->request_buffer;
+
+		for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
+			ioadl[i].flags_and_data_len =
+				cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i]));
+			ioadl[i].address =
+				cpu_to_be32(sg_dma_address(&sglist[i]));
+		}
+
+		if (likely(ipr_cmd->dma_use_sg)) {
+			ioadl[i-1].flags_and_data_len |=
+				cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+			return 0;
+		} else
+			dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
+	} else {
+		if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
+			ioadl_flags = IPR_IOADL_FLAGS_WRITE;
+			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+			ioarcb->write_data_transfer_length = cpu_to_be32(length);
+			ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+		} else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+			ioadl_flags = IPR_IOADL_FLAGS_READ;
+			ioarcb->read_data_transfer_length = cpu_to_be32(length);
+			ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+		}
+
+		ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev,
+						     scsi_cmd->request_buffer, length,
+						     scsi_cmd->sc_data_direction);
+
+		if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) {
+			ipr_cmd->dma_use_sg = 1;
+			ioadl[0].flags_and_data_len =
+				cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST);
+			ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle);
+			return 0;
+		} else
+			dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n");
+	}
+
+	return -1;
+}
+
+/**
+ * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
+ * @scsi_cmd:	scsi command struct
+ *
+ * Return value:
+ * 	task attributes
+ **/
+static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
+{
+	u8 tag[2];
+	u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
+
+	if (scsi_populate_tag_msg(scsi_cmd, tag)) {
+		switch (tag[0]) {
+		case MSG_SIMPLE_TAG:
+			rc = IPR_FLAGS_LO_SIMPLE_TASK;
+			break;
+		case MSG_HEAD_TAG:
+			rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
+			break;
+		case MSG_ORDERED_TAG:
+			rc = IPR_FLAGS_LO_ORDERED_TASK;
+			break;
+		};
+	}
+
+	return rc;
+}
+
+/**
+ * ipr_erp_done - Process completion of ERP for a device
+ * @ipr_cmd:		ipr command struct
+ *
+ * This function copies the sense buffer into the scsi_cmd
+ * struct and pushes the scsi_done function.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+	struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
+		scsi_cmd->result |= (DID_ERROR << 16);
+		ipr_sdev_err(scsi_cmd->device,
+			     "Request Sense failed with IOASC: 0x%08X\n", ioasc);
+	} else {
+		memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
+		       SCSI_SENSE_BUFFERSIZE);
+	}
+
+	if (res) {
+		res->needs_sync_complete = 1;
+		res->in_erp = 0;
+	}
+	ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	scsi_cmd->scsi_done(scsi_cmd);
+}
+
+/**
+ * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioarcb *ioarcb;
+	struct ipr_ioasa *ioasa;
+
+	ioarcb = &ipr_cmd->ioarcb;
+	ioasa = &ipr_cmd->ioasa;
+
+	memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
+	ioarcb->write_data_transfer_length = 0;
+	ioarcb->read_data_transfer_length = 0;
+	ioarcb->write_ioadl_len = 0;
+	ioarcb->read_ioadl_len = 0;
+	ioasa->ioasc = 0;
+	ioasa->residual_data_len = 0;
+}
+
+/**
+ * ipr_erp_request_sense - Send request sense to a device
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sends a request sense to a device as a result
+ * of a check condition.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
+		ipr_erp_done(ipr_cmd);
+		return;
+	}
+
+	ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
+
+	cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
+	cmd_pkt->cdb[0] = REQUEST_SENSE;
+	cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
+	cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
+	cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
+	cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
+
+	ipr_cmd->ioadl[0].flags_and_data_len =
+		cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
+	ipr_cmd->ioadl[0].address =
+		cpu_to_be32(ipr_cmd->sense_buffer_dma);
+
+	ipr_cmd->ioarcb.read_ioadl_len =
+		cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+	ipr_cmd->ioarcb.read_data_transfer_length =
+		cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
+
+	ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
+		   IPR_REQUEST_SENSE_TIMEOUT * 2);
+}
+
+/**
+ * ipr_erp_cancel_all - Send cancel all to a device
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sends a cancel all to a device to clear the
+ * queue. If we are running TCQ on the device, QERR is set to 1,
+ * which means all outstanding ops have been dropped on the floor.
+ * Cancel all will return them to us.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
+{
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+	struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
+	struct ipr_cmd_pkt *cmd_pkt;
+
+	res->in_erp = 1;
+
+	ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
+
+	if (!scsi_get_tag_type(scsi_cmd->device)) {
+		ipr_erp_request_sense(ipr_cmd);
+		return;
+	}
+
+	cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
+	cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
+	cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
+
+	ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
+		   IPR_CANCEL_ALL_TIMEOUT);
+}
+
+/**
+ * ipr_dump_ioasa - Dump contents of IOASA
+ * @ioa_cfg:	ioa config struct
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is invoked by the interrupt handler when ops
+ * fail. It will log the IOASA if appropriate. Only called
+ * for GPDD ops.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
+			   struct ipr_cmnd *ipr_cmd)
+{
+	int i;
+	u16 data_len;
+	u32 ioasc;
+	struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+	__be32 *ioasa_data = (__be32 *)ioasa;
+	int error_index;
+
+	ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
+
+	if (0 == ioasc)
+		return;
+
+	if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
+		return;
+
+	error_index = ipr_get_error(ioasc);
+
+	if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
+		/* Don't log an error if the IOA already logged one */
+		if (ioasa->ilid != 0)
+			return;
+
+		if (ipr_error_table[error_index].log_ioasa == 0)
+			return;
+	}
+
+	ipr_sdev_err(ipr_cmd->scsi_cmd->device, "%s\n",
+		     ipr_error_table[error_index].error);
+
+	if ((ioasa->u.gpdd.end_state <= ARRAY_SIZE(ipr_gpdd_dev_end_states)) &&
+	    (ioasa->u.gpdd.bus_phase <=  ARRAY_SIZE(ipr_gpdd_dev_bus_phases))) {
+		ipr_sdev_err(ipr_cmd->scsi_cmd->device,
+			     "Device End state: %s Phase: %s\n",
+			     ipr_gpdd_dev_end_states[ioasa->u.gpdd.end_state],
+			     ipr_gpdd_dev_bus_phases[ioasa->u.gpdd.bus_phase]);
+	}
+
+	if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
+		data_len = sizeof(struct ipr_ioasa);
+	else
+		data_len = be16_to_cpu(ioasa->ret_stat_len);
+
+	ipr_err("IOASA Dump:\n");
+
+	for (i = 0; i < data_len / 4; i += 4) {
+		ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
+			be32_to_cpu(ioasa_data[i]),
+			be32_to_cpu(ioasa_data[i+1]),
+			be32_to_cpu(ioasa_data[i+2]),
+			be32_to_cpu(ioasa_data[i+3]));
+	}
+}
+
+/**
+ * ipr_gen_sense - Generate SCSI sense data from an IOASA
+ * @ioasa:		IOASA
+ * @sense_buf:	sense data buffer
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
+{
+	u32 failing_lba;
+	u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
+	struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
+	struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+	u32 ioasc = be32_to_cpu(ioasa->ioasc);
+
+	memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
+
+	if (ioasc >= IPR_FIRST_DRIVER_IOASC)
+		return;
+
+	ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
+
+	if (ipr_is_vset_device(res) &&
+	    ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
+	    ioasa->u.vset.failing_lba_hi != 0) {
+		sense_buf[0] = 0x72;
+		sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
+		sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
+		sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
+
+		sense_buf[7] = 12;
+		sense_buf[8] = 0;
+		sense_buf[9] = 0x0A;
+		sense_buf[10] = 0x80;
+
+		failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
+
+		sense_buf[12] = (failing_lba & 0xff000000) >> 24;
+		sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
+		sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
+		sense_buf[15] = failing_lba & 0x000000ff;
+
+		failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
+
+		sense_buf[16] = (failing_lba & 0xff000000) >> 24;
+		sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
+		sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
+		sense_buf[19] = failing_lba & 0x000000ff;
+	} else {
+		sense_buf[0] = 0x70;
+		sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
+		sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
+		sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
+
+		/* Illegal request */
+		if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
+		    (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
+			sense_buf[7] = 10;	/* additional length */
+
+			/* IOARCB was in error */
+			if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
+				sense_buf[15] = 0xC0;
+			else	/* Parameter data was invalid */
+				sense_buf[15] = 0x80;
+
+			sense_buf[16] =
+			    ((IPR_FIELD_POINTER_MASK &
+			      be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
+			sense_buf[17] =
+			    (IPR_FIELD_POINTER_MASK &
+			     be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
+		} else {
+			if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
+				if (ipr_is_vset_device(res))
+					failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
+				else
+					failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
+
+				sense_buf[0] |= 0x80;	/* Or in the Valid bit */
+				sense_buf[3] = (failing_lba & 0xff000000) >> 24;
+				sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
+				sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
+				sense_buf[6] = failing_lba & 0x000000ff;
+			}
+
+			sense_buf[7] = 6;	/* additional length */
+		}
+	}
+}
+
+/**
+ * ipr_erp_start - Process an error response for a SCSI op
+ * @ioa_cfg:	ioa config struct
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function determines whether or not to initiate ERP
+ * on the affected device.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
+			      struct ipr_cmnd *ipr_cmd)
+{
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+	struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	if (!res) {
+		ipr_scsi_eh_done(ipr_cmd);
+		return;
+	}
+
+	if (ipr_is_gscsi(res))
+		ipr_dump_ioasa(ioa_cfg, ipr_cmd);
+	else
+		ipr_gen_sense(ipr_cmd);
+
+	switch (ioasc & IPR_IOASC_IOASC_MASK) {
+	case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
+		scsi_cmd->result |= (DID_IMM_RETRY << 16);
+		break;
+	case IPR_IOASC_IR_RESOURCE_HANDLE:
+		scsi_cmd->result |= (DID_NO_CONNECT << 16);
+		break;
+	case IPR_IOASC_HW_SEL_TIMEOUT:
+		scsi_cmd->result |= (DID_NO_CONNECT << 16);
+		res->needs_sync_complete = 1;
+		break;
+	case IPR_IOASC_SYNC_REQUIRED:
+		if (!res->in_erp)
+			res->needs_sync_complete = 1;
+		scsi_cmd->result |= (DID_IMM_RETRY << 16);
+		break;
+	case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
+		scsi_cmd->result |= (DID_PASSTHROUGH << 16);
+		break;
+	case IPR_IOASC_BUS_WAS_RESET:
+	case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
+		/*
+		 * Report the bus reset and ask for a retry. The device
+		 * will give CC/UA the next command.
+		 */
+		if (!res->resetting_device)
+			scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
+		scsi_cmd->result |= (DID_ERROR << 16);
+		res->needs_sync_complete = 1;
+		break;
+	case IPR_IOASC_HW_DEV_BUS_STATUS:
+		scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
+		if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
+			ipr_erp_cancel_all(ipr_cmd);
+			return;
+		}
+		res->needs_sync_complete = 1;
+		break;
+	case IPR_IOASC_NR_INIT_CMD_REQUIRED:
+		break;
+	default:
+		scsi_cmd->result |= (DID_ERROR << 16);
+		if (!ipr_is_vset_device(res))
+			res->needs_sync_complete = 1;
+		break;
+	}
+
+	ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	scsi_cmd->scsi_done(scsi_cmd);
+}
+
+/**
+ * ipr_scsi_done - mid-layer done function
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is invoked by the interrupt handler for
+ * ops generated by the SCSI mid-layer
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
+	u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+	scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len);
+
+	if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
+		ipr_unmap_sglist(ioa_cfg, ipr_cmd);
+		list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+		scsi_cmd->scsi_done(scsi_cmd);
+	} else
+		ipr_erp_start(ioa_cfg, ipr_cmd);
+}
+
+/**
+ * ipr_save_ioafp_mode_select - Save adapters mode select data
+ * @ioa_cfg:	ioa config struct
+ * @scsi_cmd:	scsi command struct
+ *
+ * This function saves mode select data for the adapter to
+ * use following an adapter reset.
+ *
+ * Return value:
+ *	0 on success / SCSI_MLQUEUE_HOST_BUSY on failure
+ **/
+static int ipr_save_ioafp_mode_select(struct ipr_ioa_cfg *ioa_cfg,
+				       struct scsi_cmnd *scsi_cmd)
+{
+	if (!ioa_cfg->saved_mode_pages) {
+		ioa_cfg->saved_mode_pages  = kmalloc(sizeof(struct ipr_mode_pages),
+						     GFP_ATOMIC);
+		if (!ioa_cfg->saved_mode_pages) {
+			dev_err(&ioa_cfg->pdev->dev,
+				"IOA mode select buffer allocation failed\n");
+			return SCSI_MLQUEUE_HOST_BUSY;
+		}
+	}
+
+	memcpy(ioa_cfg->saved_mode_pages, scsi_cmd->buffer, scsi_cmd->cmnd[4]);
+	ioa_cfg->saved_mode_page_len = scsi_cmd->cmnd[4];
+	return 0;
+}
+
+/**
+ * ipr_queuecommand - Queue a mid-layer request
+ * @scsi_cmd:	scsi command struct
+ * @done:		done function
+ *
+ * This function queues a request generated by the mid-layer.
+ *
+ * Return value:
+ *	0 on success
+ *	SCSI_MLQUEUE_DEVICE_BUSY if device is busy
+ *	SCSI_MLQUEUE_HOST_BUSY if host is busy
+ **/
+static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
+			    void (*done) (struct scsi_cmnd *))
+{
+	struct ipr_ioa_cfg *ioa_cfg;
+	struct ipr_resource_entry *res;
+	struct ipr_ioarcb *ioarcb;
+	struct ipr_cmnd *ipr_cmd;
+	int rc = 0;
+
+	scsi_cmd->scsi_done = done;
+	ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
+	res = scsi_cmd->device->hostdata;
+	scsi_cmd->result = (DID_OK << 16);
+
+	/*
+	 * We are currently blocking all devices due to a host reset
+	 * We have told the host to stop giving us new requests, but
+	 * ERP ops don't count. FIXME
+	 */
+	if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	/*
+	 * FIXME - Create scsi_set_host_offline interface
+	 *  and the ioa_is_dead check can be removed
+	 */
+	if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
+		memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+		scsi_cmd->result = (DID_NO_CONNECT << 16);
+		scsi_cmd->scsi_done(scsi_cmd);
+		return 0;
+	}
+
+	ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+	ioarcb = &ipr_cmd->ioarcb;
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
+
+	memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
+	ipr_cmd->scsi_cmd = scsi_cmd;
+	ioarcb->res_handle = res->cfgte.res_handle;
+	ipr_cmd->done = ipr_scsi_done;
+	ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
+
+	if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
+		if (scsi_cmd->underflow == 0)
+			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
+
+		if (res->needs_sync_complete) {
+			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
+			res->needs_sync_complete = 0;
+		}
+
+		ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
+		ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
+		ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
+		ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
+	}
+
+	if (scsi_cmd->cmnd[0] >= 0xC0 &&
+	    (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
+		ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+
+	if (ipr_is_ioa_resource(res) && scsi_cmd->cmnd[0] == MODE_SELECT)
+		rc = ipr_save_ioafp_mode_select(ioa_cfg, scsi_cmd);
+
+	if (likely(rc == 0))
+		rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
+
+	if (likely(rc == 0)) {
+		mb();
+		writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
+		       ioa_cfg->regs.ioarrin_reg);
+	} else {
+		 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+		 return SCSI_MLQUEUE_HOST_BUSY;
+	}
+
+	return 0;
+}
+
+/**
+ * ipr_info - Get information about the card/driver
+ * @scsi_host:	scsi host struct
+ *
+ * Return value:
+ * 	pointer to buffer with description string
+ **/
+static const char * ipr_ioa_info(struct Scsi_Host *host)
+{
+	static char buffer[512];
+	struct ipr_ioa_cfg *ioa_cfg;
+	unsigned long lock_flags = 0;
+
+	ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
+
+	spin_lock_irqsave(host->host_lock, lock_flags);
+	sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
+	spin_unlock_irqrestore(host->host_lock, lock_flags);
+
+	return buffer;
+}
+
+static struct scsi_host_template driver_template = {
+	.module = THIS_MODULE,
+	.name = "IPR",
+	.info = ipr_ioa_info,
+	.queuecommand = ipr_queuecommand,
+	.eh_abort_handler = ipr_eh_abort,
+	.eh_device_reset_handler = ipr_eh_dev_reset,
+	.eh_host_reset_handler = ipr_eh_host_reset,
+	.slave_alloc = ipr_slave_alloc,
+	.slave_configure = ipr_slave_configure,
+	.slave_destroy = ipr_slave_destroy,
+	.change_queue_depth = ipr_change_queue_depth,
+	.change_queue_type = ipr_change_queue_type,
+	.bios_param = ipr_biosparam,
+	.can_queue = IPR_MAX_COMMANDS,
+	.this_id = -1,
+	.sg_tablesize = IPR_MAX_SGLIST,
+	.max_sectors = IPR_IOA_MAX_SECTORS,
+	.cmd_per_lun = IPR_MAX_CMD_PER_LUN,
+	.use_clustering = ENABLE_CLUSTERING,
+	.shost_attrs = ipr_ioa_attrs,
+	.sdev_attrs = ipr_dev_attrs,
+	.proc_name = IPR_NAME
+};
+
+#ifdef CONFIG_PPC_PSERIES
+static const u16 ipr_blocked_processors[] = {
+	PV_NORTHSTAR,
+	PV_PULSAR,
+	PV_POWER4,
+	PV_ICESTAR,
+	PV_SSTAR,
+	PV_POWER4p,
+	PV_630,
+	PV_630p
+};
+
+/**
+ * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
+ * @ioa_cfg:	ioa cfg struct
+ *
+ * Adapters that use Gemstone revision < 3.1 do not work reliably on
+ * certain pSeries hardware. This function determines if the given
+ * adapter is in one of these confgurations or not.
+ *
+ * Return value:
+ * 	1 if adapter is not supported / 0 if adapter is supported
+ **/
+static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
+{
+	u8 rev_id;
+	int i;
+
+	if (ioa_cfg->type == 0x5702) {
+		if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
+					 &rev_id) == PCIBIOS_SUCCESSFUL) {
+			if (rev_id < 4) {
+				for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
+					if (__is_processor(ipr_blocked_processors[i]))
+						return 1;
+				}
+			}
+		}
+	}
+	return 0;
+}
+#else
+#define ipr_invalid_adapter(ioa_cfg) 0
+#endif
+
+/**
+ * ipr_ioa_bringdown_done - IOA bring down completion.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function processes the completion of an adapter bring down.
+ * It wakes any reset sleepers.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	ENTER;
+	ioa_cfg->in_reset_reload = 0;
+	ioa_cfg->reset_retries = 0;
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	wake_up_all(&ioa_cfg->reset_wait_q);
+
+	spin_unlock_irq(ioa_cfg->host->host_lock);
+	scsi_unblock_requests(ioa_cfg->host);
+	spin_lock_irq(ioa_cfg->host->host_lock);
+	LEAVE;
+
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioa_reset_done - IOA reset completion.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function processes the completion of an adapter reset.
+ * It schedules any necessary mid-layer add/removes and
+ * wakes any reset sleepers.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_resource_entry *res;
+	struct ipr_hostrcb *hostrcb, *temp;
+	int i = 0;
+
+	ENTER;
+	ioa_cfg->in_reset_reload = 0;
+	ioa_cfg->allow_cmds = 1;
+	ioa_cfg->reset_cmd = NULL;
+
+	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+		if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
+			ipr_trace;
+			break;
+		}
+	}
+	schedule_work(&ioa_cfg->work_q);
+
+	list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
+		list_del(&hostrcb->queue);
+		if (i++ < IPR_NUM_LOG_HCAMS)
+			ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
+		else
+			ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
+	}
+
+	dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
+
+	ioa_cfg->reset_retries = 0;
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	wake_up_all(&ioa_cfg->reset_wait_q);
+
+	spin_unlock_irq(ioa_cfg->host->host_lock);
+	scsi_unblock_requests(ioa_cfg->host);
+	spin_lock_irq(ioa_cfg->host->host_lock);
+
+	if (!ioa_cfg->allow_cmds)
+		scsi_block_requests(ioa_cfg->host);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
+ * @supported_dev:	supported device struct
+ * @vpids:			vendor product id struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
+				 struct ipr_std_inq_vpids *vpids)
+{
+	memset(supported_dev, 0, sizeof(struct ipr_supported_device));
+	memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
+	supported_dev->num_records = 1;
+	supported_dev->data_length =
+		cpu_to_be16(sizeof(struct ipr_supported_device));
+	supported_dev->reserved = 0;
+}
+
+/**
+ * ipr_set_supported_devs - Send Set Supported Devices for a device
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function send a Set Supported Devices to the adapter
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_resource_entry *res = ipr_cmd->u.res;
+
+	ipr_cmd->job_step = ipr_ioa_reset_done;
+
+	list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
+		if (!ipr_is_af_dasd_device(res))
+			continue;
+
+		ipr_cmd->u.res = res;
+		ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
+
+		ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+		ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+		ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+
+		ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
+		ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
+		ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
+
+		ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
+							sizeof(struct ipr_supported_device));
+		ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
+					     offsetof(struct ipr_misc_cbs, supp_dev));
+		ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+		ioarcb->write_data_transfer_length =
+			cpu_to_be32(sizeof(struct ipr_supported_device));
+
+		ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
+			   IPR_SET_SUP_DEVICE_TIMEOUT);
+
+		ipr_cmd->job_step = ipr_set_supported_devs;
+		return IPR_RC_JOB_RETURN;
+	}
+
+	return IPR_RC_JOB_CONTINUE;
+}
+
+/**
+ * ipr_get_mode_page - Locate specified mode page
+ * @mode_pages:	mode page buffer
+ * @page_code:	page code to find
+ * @len:		minimum required length for mode page
+ *
+ * Return value:
+ * 	pointer to mode page / NULL on failure
+ **/
+static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
+			       u32 page_code, u32 len)
+{
+	struct ipr_mode_page_hdr *mode_hdr;
+	u32 page_length;
+	u32 length;
+
+	if (!mode_pages || (mode_pages->hdr.length == 0))
+		return NULL;
+
+	length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
+	mode_hdr = (struct ipr_mode_page_hdr *)
+		(mode_pages->data + mode_pages->hdr.block_desc_len);
+
+	while (length) {
+		if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
+			if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
+				return mode_hdr;
+			break;
+		} else {
+			page_length = (sizeof(struct ipr_mode_page_hdr) +
+				       mode_hdr->page_length);
+			length -= page_length;
+			mode_hdr = (struct ipr_mode_page_hdr *)
+				((unsigned long)mode_hdr + page_length);
+		}
+	}
+	return NULL;
+}
+
+/**
+ * ipr_check_term_power - Check for term power errors
+ * @ioa_cfg:	ioa config struct
+ * @mode_pages:	IOAFP mode pages buffer
+ *
+ * Check the IOAFP's mode page 28 for term power errors
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
+				 struct ipr_mode_pages *mode_pages)
+{
+	int i;
+	int entry_length;
+	struct ipr_dev_bus_entry *bus;
+	struct ipr_mode_page28 *mode_page;
+
+	mode_page = ipr_get_mode_page(mode_pages, 0x28,
+				      sizeof(struct ipr_mode_page28));
+
+	entry_length = mode_page->entry_length;
+
+	bus = mode_page->bus;
+
+	for (i = 0; i < mode_page->num_entries; i++) {
+		if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
+			dev_err(&ioa_cfg->pdev->dev,
+				"Term power is absent on scsi bus %d\n",
+				bus->res_addr.bus);
+		}
+
+		bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
+	}
+}
+
+/**
+ * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
+ * @ioa_cfg:	ioa config struct
+ *
+ * Looks through the config table checking for SES devices. If
+ * the SES device is in the SES table indicating a maximum SCSI
+ * bus speed, the speed is limited for the bus.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
+{
+	u32 max_xfer_rate;
+	int i;
+
+	for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
+		max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
+						       ioa_cfg->bus_attr[i].bus_width);
+
+		if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
+			ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
+	}
+}
+
+/**
+ * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
+ * @ioa_cfg:	ioa config struct
+ * @mode_pages:	mode page 28 buffer
+ *
+ * Updates mode page 28 based on driver configuration
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
+					  	struct ipr_mode_pages *mode_pages)
+{
+	int i, entry_length;
+	struct ipr_dev_bus_entry *bus;
+	struct ipr_bus_attributes *bus_attr;
+	struct ipr_mode_page28 *mode_page;
+
+	mode_page = ipr_get_mode_page(mode_pages, 0x28,
+				      sizeof(struct ipr_mode_page28));
+
+	entry_length = mode_page->entry_length;
+
+	/* Loop for each device bus entry */
+	for (i = 0, bus = mode_page->bus;
+	     i < mode_page->num_entries;
+	     i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
+		if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
+			dev_err(&ioa_cfg->pdev->dev,
+				"Invalid resource address reported: 0x%08X\n",
+				IPR_GET_PHYS_LOC(bus->res_addr));
+			continue;
+		}
+
+		bus_attr = &ioa_cfg->bus_attr[i];
+		bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
+		bus->bus_width = bus_attr->bus_width;
+		bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
+		bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
+		if (bus_attr->qas_enabled)
+			bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
+		else
+			bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
+	}
+}
+
+/**
+ * ipr_build_mode_select - Build a mode select command
+ * @ipr_cmd:	ipr command struct
+ * @res_handle:	resource handle to send command to
+ * @parm:		Byte 2 of Mode Sense command
+ * @dma_addr:	DMA buffer address
+ * @xfer_len:	data transfer length
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
+				  __be32 res_handle, u8 parm, u32 dma_addr,
+				  u8 xfer_len)
+{
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+
+	ioarcb->res_handle = res_handle;
+	ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
+	ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
+	ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
+	ioarcb->cmd_pkt.cdb[1] = parm;
+	ioarcb->cmd_pkt.cdb[4] = xfer_len;
+
+	ioadl->flags_and_data_len =
+		cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
+	ioadl->address = cpu_to_be32(dma_addr);
+	ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+	ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
+}
+
+/**
+ * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sets up the SCSI bus attributes and sends
+ * a Mode Select for Page 28 to activate them.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
+	int length;
+
+	ENTER;
+	if (ioa_cfg->saved_mode_pages) {
+		memcpy(mode_pages, ioa_cfg->saved_mode_pages,
+		       ioa_cfg->saved_mode_page_len);
+		length = ioa_cfg->saved_mode_page_len;
+	} else {
+		ipr_scsi_bus_speed_limit(ioa_cfg);
+		ipr_check_term_power(ioa_cfg, mode_pages);
+		ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
+		length = mode_pages->hdr.length + 1;
+		mode_pages->hdr.length = 0;
+	}
+
+	ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
+			      ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
+			      length);
+
+	ipr_cmd->job_step = ipr_set_supported_devs;
+	ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
+				    struct ipr_resource_entry, queue);
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_build_mode_sense - Builds a mode sense command
+ * @ipr_cmd:	ipr command struct
+ * @res:		resource entry struct
+ * @parm:		Byte 2 of mode sense command
+ * @dma_addr:	DMA address of mode sense buffer
+ * @xfer_len:	Size of DMA buffer
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
+				 __be32 res_handle,
+				 u8 parm, u32 dma_addr, u8 xfer_len)
+{
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+
+	ioarcb->res_handle = res_handle;
+	ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
+	ioarcb->cmd_pkt.cdb[2] = parm;
+	ioarcb->cmd_pkt.cdb[4] = xfer_len;
+	ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
+
+	ioadl->flags_and_data_len =
+		cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
+	ioadl->address = cpu_to_be32(dma_addr);
+	ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+	ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
+}
+
+/**
+ * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function send a Page 28 mode sense to the IOA to
+ * retrieve SCSI bus attributes.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	ENTER;
+	ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
+			     0x28, ioa_cfg->vpd_cbs_dma +
+			     offsetof(struct ipr_misc_cbs, mode_pages),
+			     sizeof(struct ipr_mode_pages));
+
+	ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_init_res_table - Initialize the resource table
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function looks through the existing resource table, comparing
+ * it with the config table. This function will take care of old/new
+ * devices and schedule adding/removing them from the mid-layer
+ * as appropriate.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE
+ **/
+static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_resource_entry *res, *temp;
+	struct ipr_config_table_entry *cfgte;
+	int found, i;
+	LIST_HEAD(old_res);
+
+	ENTER;
+	if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
+		dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
+
+	list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
+		list_move_tail(&res->queue, &old_res);
+
+	for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
+		cfgte = &ioa_cfg->cfg_table->dev[i];
+		found = 0;
+
+		list_for_each_entry_safe(res, temp, &old_res, queue) {
+			if (!memcmp(&res->cfgte.res_addr,
+				    &cfgte->res_addr, sizeof(cfgte->res_addr))) {
+				list_move_tail(&res->queue, &ioa_cfg->used_res_q);
+				found = 1;
+				break;
+			}
+		}
+
+		if (!found) {
+			if (list_empty(&ioa_cfg->free_res_q)) {
+				dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
+				break;
+			}
+
+			found = 1;
+			res = list_entry(ioa_cfg->free_res_q.next,
+					 struct ipr_resource_entry, queue);
+			list_move_tail(&res->queue, &ioa_cfg->used_res_q);
+			ipr_init_res_entry(res);
+			res->add_to_ml = 1;
+		}
+
+		if (found)
+			memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
+	}
+
+	list_for_each_entry_safe(res, temp, &old_res, queue) {
+		if (res->sdev) {
+			res->del_from_ml = 1;
+			res->sdev->hostdata = NULL;
+			list_move_tail(&res->queue, &ioa_cfg->used_res_q);
+		} else {
+			list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+		}
+	}
+
+	ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
+
+	LEAVE;
+	return IPR_RC_JOB_CONTINUE;
+}
+
+/**
+ * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sends a Query IOA Configuration command
+ * to the adapter to retrieve the IOA configuration table.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+	struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
+
+	ENTER;
+	dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
+		 ucode_vpd->major_release, ucode_vpd->card_type,
+		 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
+	ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+	ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+
+	ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
+	ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
+	ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
+
+	ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+	ioarcb->read_data_transfer_length =
+		cpu_to_be32(sizeof(struct ipr_config_table));
+
+	ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
+	ioadl->flags_and_data_len =
+		cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
+
+	ipr_cmd->job_step = ipr_init_res_table;
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This utility function sends an inquiry to the adapter.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
+			      u32 dma_addr, u8 xfer_len)
+{
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+	struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+
+	ENTER;
+	ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
+	ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+
+	ioarcb->cmd_pkt.cdb[0] = INQUIRY;
+	ioarcb->cmd_pkt.cdb[1] = flags;
+	ioarcb->cmd_pkt.cdb[2] = page;
+	ioarcb->cmd_pkt.cdb[4] = xfer_len;
+
+	ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
+	ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
+
+	ioadl->address = cpu_to_be32(dma_addr);
+	ioadl->flags_and_data_len =
+		cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+	LEAVE;
+}
+
+/**
+ * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sends a Page 3 inquiry to the adapter
+ * to retrieve software VPD information.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	char type[5];
+
+	ENTER;
+
+	/* Grab the type out of the VPD and store it away */
+	memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
+	type[4] = '\0';
+	ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
+
+	ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
+
+	ipr_ioafp_inquiry(ipr_cmd, 1, 3,
+			  ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
+			  sizeof(struct ipr_inquiry_page3));
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function sends a standard inquiry to the adapter.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	ENTER;
+	ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
+
+	ipr_ioafp_inquiry(ipr_cmd, 0, 0,
+			  ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
+			  sizeof(struct ipr_ioa_vpd));
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function send an Identify Host Request Response Queue
+ * command to establish the HRRQ with the adapter.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
+
+	ENTER;
+	dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
+
+	ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
+	ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+
+	ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+	ioarcb->cmd_pkt.cdb[2] =
+		((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
+	ioarcb->cmd_pkt.cdb[3] =
+		((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
+	ioarcb->cmd_pkt.cdb[4] =
+		((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
+	ioarcb->cmd_pkt.cdb[5] =
+		((u32) ioa_cfg->host_rrq_dma) & 0xff;
+	ioarcb->cmd_pkt.cdb[7] =
+		((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
+	ioarcb->cmd_pkt.cdb[8] =
+		(sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
+
+	ipr_cmd->job_step = ipr_ioafp_std_inquiry;
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_timer_done - Adapter reset timer function
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function is used in adapter reset processing
+ * for timing events. If the reset_cmd pointer in the IOA
+ * config struct is not this adapter's we are doing nested
+ * resets and fail_all_ops will take care of freeing the
+ * command block.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	unsigned long lock_flags = 0;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	if (ioa_cfg->reset_cmd == ipr_cmd) {
+		list_del(&ipr_cmd->queue);
+		ipr_cmd->done(ipr_cmd);
+	}
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+}
+
+/**
+ * ipr_reset_start_timer - Start a timer for adapter reset job
+ * @ipr_cmd:	ipr command struct
+ * @timeout:	timeout value
+ *
+ * Description: This function is used in adapter reset processing
+ * for timing events. If the reset_cmd pointer in the IOA
+ * config struct is not this adapter's we are doing nested
+ * resets and fail_all_ops will take care of freeing the
+ * command block.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
+				  unsigned long timeout)
+{
+	list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
+	ipr_cmd->done = ipr_reset_ioa_job;
+
+	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
+	ipr_cmd->timer.expires = jiffies + timeout;
+	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
+	add_timer(&ipr_cmd->timer);
+}
+
+/**
+ * ipr_init_ioa_mem - Initialize ioa_cfg control block
+ * @ioa_cfg:	ioa cfg struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
+{
+	memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
+
+	/* Initialize Host RRQ pointers */
+	ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
+	ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
+	ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
+	ioa_cfg->toggle_bit = 1;
+
+	/* Zero out config table */
+	memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
+}
+
+/**
+ * ipr_reset_enable_ioa - Enable the IOA following a reset.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function reinitializes some control blocks and
+ * enables destructive diagnostics on the adapter.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	volatile u32 int_reg;
+
+	ENTER;
+	ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
+	ipr_init_ioa_mem(ioa_cfg);
+
+	ioa_cfg->allow_interrupts = 1;
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+
+	if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
+		writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
+		       ioa_cfg->regs.clr_interrupt_mask_reg);
+		int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+		return IPR_RC_JOB_CONTINUE;
+	}
+
+	/* Enable destructive diagnostics on IOA */
+	writel(IPR_DOORBELL, ioa_cfg->regs.set_uproc_interrupt_reg);
+
+	writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+
+	dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
+
+	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
+	ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ);
+	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+	ipr_cmd->done = ipr_reset_ioa_job;
+	add_timer(&ipr_cmd->timer);
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_wait_for_dump - Wait for a dump to timeout.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function is invoked when an adapter dump has run out
+ * of processing time.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE
+ **/
+static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	if (ioa_cfg->sdt_state == GET_DUMP)
+		ioa_cfg->sdt_state = ABORT_DUMP;
+
+	ipr_cmd->job_step = ipr_reset_alert;
+
+	return IPR_RC_JOB_CONTINUE;
+}
+
+/**
+ * ipr_unit_check_no_data - Log a unit check/no data error log
+ * @ioa_cfg:		ioa config struct
+ *
+ * Logs an error indicating the adapter unit checked, but for some
+ * reason, we were unable to fetch the unit check buffer.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
+{
+	ioa_cfg->errors_logged++;
+	dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
+}
+
+/**
+ * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
+ * @ioa_cfg:		ioa config struct
+ *
+ * Fetches the unit check buffer from the adapter by clocking the data
+ * through the mailbox register.
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
+{
+	unsigned long mailbox;
+	struct ipr_hostrcb *hostrcb;
+	struct ipr_uc_sdt sdt;
+	int rc, length;
+
+	mailbox = readl(ioa_cfg->ioa_mailbox);
+
+	if (!ipr_sdt_is_fmt2(mailbox)) {
+		ipr_unit_check_no_data(ioa_cfg);
+		return;
+	}
+
+	memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
+	rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
+					(sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
+
+	if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
+	    !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
+		ipr_unit_check_no_data(ioa_cfg);
+		return;
+	}
+
+	/* Find length of the first sdt entry (UC buffer) */
+	length = (be32_to_cpu(sdt.entry[0].end_offset) -
+		  be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
+
+	hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
+			     struct ipr_hostrcb, queue);
+	list_del(&hostrcb->queue);
+	memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
+
+	rc = ipr_get_ldump_data_section(ioa_cfg,
+					be32_to_cpu(sdt.entry[0].bar_str_offset),
+					(__be32 *)&hostrcb->hcam,
+					min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
+
+	if (!rc)
+		ipr_handle_log_data(ioa_cfg, hostrcb);
+	else
+		ipr_unit_check_no_data(ioa_cfg);
+
+	list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
+}
+
+/**
+ * ipr_reset_restore_cfg_space - Restore PCI config space.
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function restores the saved PCI config space of
+ * the adapter, fails all outstanding ops back to the callers, and
+ * fetches the dump/unit check if applicable to this reset.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	int rc;
+
+	ENTER;
+	rc = pci_restore_state(ioa_cfg->pdev);
+
+	if (rc != PCIBIOS_SUCCESSFUL) {
+		ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+		return IPR_RC_JOB_CONTINUE;
+	}
+
+	if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
+		ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+		return IPR_RC_JOB_CONTINUE;
+	}
+
+	ipr_fail_all_ops(ioa_cfg);
+
+	if (ioa_cfg->ioa_unit_checked) {
+		ioa_cfg->ioa_unit_checked = 0;
+		ipr_get_unit_check_buffer(ioa_cfg);
+		ipr_cmd->job_step = ipr_reset_alert;
+		ipr_reset_start_timer(ipr_cmd, 0);
+		return IPR_RC_JOB_RETURN;
+	}
+
+	if (ioa_cfg->in_ioa_bringdown) {
+		ipr_cmd->job_step = ipr_ioa_bringdown_done;
+	} else {
+		ipr_cmd->job_step = ipr_reset_enable_ioa;
+
+		if (GET_DUMP == ioa_cfg->sdt_state) {
+			ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
+			ipr_cmd->job_step = ipr_reset_wait_for_dump;
+			schedule_work(&ioa_cfg->work_q);
+			return IPR_RC_JOB_RETURN;
+		}
+	}
+
+	ENTER;
+	return IPR_RC_JOB_CONTINUE;
+}
+
+/**
+ * ipr_reset_start_bist - Run BIST on the adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function runs BIST on the adapter, then delays 2 seconds.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	int rc;
+
+	ENTER;
+	rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
+
+	if (rc != PCIBIOS_SUCCESSFUL) {
+		ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+		rc = IPR_RC_JOB_CONTINUE;
+	} else {
+		ipr_cmd->job_step = ipr_reset_restore_cfg_space;
+		ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
+		rc = IPR_RC_JOB_RETURN;
+	}
+
+	LEAVE;
+	return rc;
+}
+
+/**
+ * ipr_reset_allowed - Query whether or not IOA can be reset
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	0 if reset not allowed / non-zero if reset is allowed
+ **/
+static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
+{
+	volatile u32 temp_reg;
+
+	temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+	return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
+}
+
+/**
+ * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function waits for adapter permission to run BIST,
+ * then runs BIST. If the adapter does not give permission after a
+ * reasonable time, we will reset the adapter anyway. The impact of
+ * resetting the adapter without warning the adapter is the risk of
+ * losing the persistent error log on the adapter. If the adapter is
+ * reset while it is writing to the flash on the adapter, the flash
+ * segment will have bad ECC and be zeroed.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	int rc = IPR_RC_JOB_RETURN;
+
+	if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
+		ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
+		ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
+	} else {
+		ipr_cmd->job_step = ipr_reset_start_bist;
+		rc = IPR_RC_JOB_CONTINUE;
+	}
+
+	return rc;
+}
+
+/**
+ * ipr_reset_alert_part2 - Alert the adapter of a pending reset
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function alerts the adapter that it will be reset.
+ * If memory space is not currently enabled, proceed directly
+ * to running BIST on the adapter. The timer must always be started
+ * so we guarantee we do not run BIST from ipr_isr.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	u16 cmd_reg;
+	int rc;
+
+	ENTER;
+	rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
+
+	if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
+		ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
+		writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
+		ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
+	} else {
+		ipr_cmd->job_step = ipr_reset_start_bist;
+	}
+
+	ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
+	ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_ucode_download_done - Microcode download completion
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function unmaps the microcode download buffer.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE
+ **/
+static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
+
+	pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
+		     sglist->num_sg, DMA_TO_DEVICE);
+
+	ipr_cmd->job_step = ipr_reset_alert;
+	return IPR_RC_JOB_CONTINUE;
+}
+
+/**
+ * ipr_reset_ucode_download - Download microcode to the adapter
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function checks to see if it there is microcode
+ * to download to the adapter. If there is, a download is performed.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
+
+	ENTER;
+	ipr_cmd->job_step = ipr_reset_alert;
+
+	if (!sglist)
+		return IPR_RC_JOB_CONTINUE;
+
+	ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+	ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
+	ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
+	ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
+	ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
+	ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
+	ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
+
+	if (ipr_map_ucode_buffer(ipr_cmd, sglist, sglist->buffer_len)) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"Failed to map microcode download buffer\n");
+		return IPR_RC_JOB_CONTINUE;
+	}
+
+	ipr_cmd->job_step = ipr_reset_ucode_download_done;
+
+	ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
+		   IPR_WRITE_BUFFER_TIMEOUT);
+
+	LEAVE;
+	return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_shutdown_ioa - Shutdown the adapter
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function issues an adapter shutdown of the
+ * specified type to the specified adapter as part of the
+ * adapter reset job.
+ *
+ * Return value:
+ * 	IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
+{
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
+	unsigned long timeout;
+	int rc = IPR_RC_JOB_CONTINUE;
+
+	ENTER;
+	if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
+		ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+		ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+		ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
+		ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
+
+		if (shutdown_type == IPR_SHUTDOWN_ABBREV)
+			timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
+		else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
+			timeout = IPR_INTERNAL_TIMEOUT;
+		else
+			timeout = IPR_SHUTDOWN_TIMEOUT;
+
+		ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
+
+		rc = IPR_RC_JOB_RETURN;
+		ipr_cmd->job_step = ipr_reset_ucode_download;
+	} else
+		ipr_cmd->job_step = ipr_reset_alert;
+
+	LEAVE;
+	return rc;
+}
+
+/**
+ * ipr_reset_ioa_job - Adapter reset job
+ * @ipr_cmd:	ipr command struct
+ *
+ * Description: This function is the job router for the adapter reset job.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
+{
+	u32 rc, ioasc;
+	unsigned long scratch = ipr_cmd->u.scratch;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	do {
+		ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+		if (ioa_cfg->reset_cmd != ipr_cmd) {
+			/*
+			 * We are doing nested adapter resets and this is
+			 * not the current reset job.
+			 */
+			list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+			return;
+		}
+
+		if (IPR_IOASC_SENSE_KEY(ioasc)) {
+			dev_err(&ioa_cfg->pdev->dev,
+				"0x%02X failed with IOASC: 0x%08X\n",
+				ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
+
+			ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+			list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+			return;
+		}
+
+		ipr_reinit_ipr_cmnd(ipr_cmd);
+		ipr_cmd->u.scratch = scratch;
+		rc = ipr_cmd->job_step(ipr_cmd);
+	} while(rc == IPR_RC_JOB_CONTINUE);
+}
+
+/**
+ * _ipr_initiate_ioa_reset - Initiate an adapter reset
+ * @ioa_cfg:		ioa config struct
+ * @job_step:		first job step of reset job
+ * @shutdown_type:	shutdown type
+ *
+ * Description: This function will initiate the reset of the given adapter
+ * starting at the selected job step.
+ * If the caller needs to wait on the completion of the reset,
+ * the caller must sleep on the reset_wait_q.
+ *
+ * Return value:
+ * 	none
+ **/
+static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
+				    int (*job_step) (struct ipr_cmnd *),
+				    enum ipr_shutdown_type shutdown_type)
+{
+	struct ipr_cmnd *ipr_cmd;
+
+	ioa_cfg->in_reset_reload = 1;
+	ioa_cfg->allow_cmds = 0;
+	scsi_block_requests(ioa_cfg->host);
+
+	ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+	ioa_cfg->reset_cmd = ipr_cmd;
+	ipr_cmd->job_step = job_step;
+	ipr_cmd->u.shutdown_type = shutdown_type;
+
+	ipr_reset_ioa_job(ipr_cmd);
+}
+
+/**
+ * ipr_initiate_ioa_reset - Initiate an adapter reset
+ * @ioa_cfg:		ioa config struct
+ * @shutdown_type:	shutdown type
+ *
+ * Description: This function will initiate the reset of the given adapter.
+ * If the caller needs to wait on the completion of the reset,
+ * the caller must sleep on the reset_wait_q.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
+				   enum ipr_shutdown_type shutdown_type)
+{
+	if (ioa_cfg->ioa_is_dead)
+		return;
+
+	if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
+		ioa_cfg->sdt_state = ABORT_DUMP;
+
+	if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
+		dev_err(&ioa_cfg->pdev->dev,
+			"IOA taken offline - error recovery failed\n");
+
+		ioa_cfg->reset_retries = 0;
+		ioa_cfg->ioa_is_dead = 1;
+
+		if (ioa_cfg->in_ioa_bringdown) {
+			ioa_cfg->reset_cmd = NULL;
+			ioa_cfg->in_reset_reload = 0;
+			ipr_fail_all_ops(ioa_cfg);
+			wake_up_all(&ioa_cfg->reset_wait_q);
+
+			spin_unlock_irq(ioa_cfg->host->host_lock);
+			scsi_unblock_requests(ioa_cfg->host);
+			spin_lock_irq(ioa_cfg->host->host_lock);
+			return;
+		} else {
+			ioa_cfg->in_ioa_bringdown = 1;
+			shutdown_type = IPR_SHUTDOWN_NONE;
+		}
+	}
+
+	_ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
+				shutdown_type);
+}
+
+/**
+ * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
+ * @ioa_cfg:	ioa cfg struct
+ *
+ * Description: This is the second phase of adapter intialization
+ * This function takes care of initilizing the adapter to the point
+ * where it can accept new commands.
+
+ * Return value:
+ * 	0 on sucess / -EIO on failure
+ **/
+static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int rc = 0;
+	unsigned long host_lock_flags = 0;
+
+	ENTER;
+	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
+	dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
+	_ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, IPR_SHUTDOWN_NONE);
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
+
+	if (ioa_cfg->ioa_is_dead) {
+		rc = -EIO;
+	} else if (ipr_invalid_adapter(ioa_cfg)) {
+		if (!ipr_testmode)
+			rc = -EIO;
+
+		dev_err(&ioa_cfg->pdev->dev,
+			"Adapter not supported in this hardware configuration.\n");
+	}
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
+
+	LEAVE;
+	return rc;
+}
+
+/**
+ * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int i;
+
+	for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
+		if (ioa_cfg->ipr_cmnd_list[i])
+			pci_pool_free(ioa_cfg->ipr_cmd_pool,
+				      ioa_cfg->ipr_cmnd_list[i],
+				      ioa_cfg->ipr_cmnd_list_dma[i]);
+
+		ioa_cfg->ipr_cmnd_list[i] = NULL;
+	}
+
+	if (ioa_cfg->ipr_cmd_pool)
+		pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
+
+	ioa_cfg->ipr_cmd_pool = NULL;
+}
+
+/**
+ * ipr_free_mem - Frees memory allocated for an adapter
+ * @ioa_cfg:	ioa cfg struct
+ *
+ * Return value:
+ * 	nothing
+ **/
+static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int i;
+
+	kfree(ioa_cfg->res_entries);
+	pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
+			    ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
+	ipr_free_cmd_blks(ioa_cfg);
+	pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
+			    ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
+	pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
+			    ioa_cfg->cfg_table,
+			    ioa_cfg->cfg_table_dma);
+
+	for (i = 0; i < IPR_NUM_HCAMS; i++) {
+		pci_free_consistent(ioa_cfg->pdev,
+				    sizeof(struct ipr_hostrcb),
+				    ioa_cfg->hostrcb[i],
+				    ioa_cfg->hostrcb_dma[i]);
+	}
+
+	ipr_free_dump(ioa_cfg);
+	kfree(ioa_cfg->saved_mode_pages);
+	kfree(ioa_cfg->trace);
+}
+
+/**
+ * ipr_free_all_resources - Free all allocated resources for an adapter.
+ * @ipr_cmd:	ipr command struct
+ *
+ * This function frees all allocated resources for the
+ * specified adapter.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct pci_dev *pdev = ioa_cfg->pdev;
+
+	ENTER;
+	free_irq(pdev->irq, ioa_cfg);
+	iounmap(ioa_cfg->hdw_dma_regs);
+	pci_release_regions(pdev);
+	ipr_free_mem(ioa_cfg);
+	scsi_host_put(ioa_cfg->host);
+	pci_disable_device(pdev);
+	LEAVE;
+}
+
+/**
+ * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	0 on success / -ENOMEM on allocation failure
+ **/
+static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_cmnd *ipr_cmd;
+	struct ipr_ioarcb *ioarcb;
+	dma_addr_t dma_addr;
+	int i;
+
+	ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
+						 sizeof(struct ipr_cmnd), 8, 0);
+
+	if (!ioa_cfg->ipr_cmd_pool)
+		return -ENOMEM;
+
+	for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
+		ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr);
+
+		if (!ipr_cmd) {
+			ipr_free_cmd_blks(ioa_cfg);
+			return -ENOMEM;
+		}
+
+		memset(ipr_cmd, 0, sizeof(*ipr_cmd));
+		ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
+		ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
+
+		ioarcb = &ipr_cmd->ioarcb;
+		ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
+		ioarcb->host_response_handle = cpu_to_be32(i << 2);
+		ioarcb->write_ioadl_addr =
+			cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
+		ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
+		ioarcb->ioasa_host_pci_addr =
+			cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
+		ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
+		ipr_cmd->cmd_index = i;
+		ipr_cmd->ioa_cfg = ioa_cfg;
+		ipr_cmd->sense_buffer_dma = dma_addr +
+			offsetof(struct ipr_cmnd, sense_buffer);
+
+		list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	}
+
+	return 0;
+}
+
+/**
+ * ipr_alloc_mem - Allocate memory for an adapter
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	0 on success / non-zero for error
+ **/
+static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct pci_dev *pdev = ioa_cfg->pdev;
+	int i, rc = -ENOMEM;
+
+	ENTER;
+	ioa_cfg->res_entries = kmalloc(sizeof(struct ipr_resource_entry) *
+				       IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
+
+	if (!ioa_cfg->res_entries)
+		goto out;
+
+	memset(ioa_cfg->res_entries, 0,
+	       sizeof(struct ipr_resource_entry) * IPR_MAX_PHYSICAL_DEVS);
+
+	for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
+		list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
+
+	ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
+						sizeof(struct ipr_misc_cbs),
+						&ioa_cfg->vpd_cbs_dma);
+
+	if (!ioa_cfg->vpd_cbs)
+		goto out_free_res_entries;
+
+	if (ipr_alloc_cmd_blks(ioa_cfg))
+		goto out_free_vpd_cbs;
+
+	ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
+						 sizeof(u32) * IPR_NUM_CMD_BLKS,
+						 &ioa_cfg->host_rrq_dma);
+
+	if (!ioa_cfg->host_rrq)
+		goto out_ipr_free_cmd_blocks;
+
+	ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
+						  sizeof(struct ipr_config_table),
+						  &ioa_cfg->cfg_table_dma);
+
+	if (!ioa_cfg->cfg_table)
+		goto out_free_host_rrq;
+
+	for (i = 0; i < IPR_NUM_HCAMS; i++) {
+		ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
+							   sizeof(struct ipr_hostrcb),
+							   &ioa_cfg->hostrcb_dma[i]);
+
+		if (!ioa_cfg->hostrcb[i])
+			goto out_free_hostrcb_dma;
+
+		ioa_cfg->hostrcb[i]->hostrcb_dma =
+			ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
+		list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
+	}
+
+	ioa_cfg->trace = kmalloc(sizeof(struct ipr_trace_entry) *
+				 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
+
+	if (!ioa_cfg->trace)
+		goto out_free_hostrcb_dma;
+
+	memset(ioa_cfg->trace, 0,
+	       sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES);
+
+	rc = 0;
+out:
+	LEAVE;
+	return rc;
+
+out_free_hostrcb_dma:
+	while (i-- > 0) {
+		pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
+				    ioa_cfg->hostrcb[i],
+				    ioa_cfg->hostrcb_dma[i]);
+	}
+	pci_free_consistent(pdev, sizeof(struct ipr_config_table),
+			    ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
+out_free_host_rrq:
+	pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
+			    ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
+out_ipr_free_cmd_blocks:
+	ipr_free_cmd_blks(ioa_cfg);
+out_free_vpd_cbs:
+	pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
+			    ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
+out_free_res_entries:
+	kfree(ioa_cfg->res_entries);
+	goto out;
+}
+
+/**
+ * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int i;
+
+	for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
+		ioa_cfg->bus_attr[i].bus = i;
+		ioa_cfg->bus_attr[i].qas_enabled = 0;
+		ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
+		if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
+			ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
+		else
+			ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
+	}
+}
+
+/**
+ * ipr_init_ioa_cfg - Initialize IOA config struct
+ * @ioa_cfg:	ioa config struct
+ * @host:		scsi host struct
+ * @pdev:		PCI dev struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
+				       struct Scsi_Host *host, struct pci_dev *pdev)
+{
+	const struct ipr_interrupt_offsets *p;
+	struct ipr_interrupts *t;
+	void __iomem *base;
+
+	ioa_cfg->host = host;
+	ioa_cfg->pdev = pdev;
+	ioa_cfg->log_level = ipr_log_level;
+	sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
+	sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
+	sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
+	sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
+	sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
+	sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
+	sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
+	sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
+
+	INIT_LIST_HEAD(&ioa_cfg->free_q);
+	INIT_LIST_HEAD(&ioa_cfg->pending_q);
+	INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
+	INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
+	INIT_LIST_HEAD(&ioa_cfg->free_res_q);
+	INIT_LIST_HEAD(&ioa_cfg->used_res_q);
+	INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg);
+	init_waitqueue_head(&ioa_cfg->reset_wait_q);
+	ioa_cfg->sdt_state = INACTIVE;
+
+	ipr_initialize_bus_attr(ioa_cfg);
+
+	host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
+	host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
+	host->max_channel = IPR_MAX_BUS_TO_SCAN;
+	host->unique_id = host->host_no;
+	host->max_cmd_len = IPR_MAX_CDB_LEN;
+	pci_set_drvdata(pdev, ioa_cfg);
+
+	p = &ioa_cfg->chip_cfg->regs;
+	t = &ioa_cfg->regs;
+	base = ioa_cfg->hdw_dma_regs;
+
+	t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
+	t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
+	t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
+	t->clr_interrupt_reg = base + p->clr_interrupt_reg;
+	t->sense_interrupt_reg = base + p->sense_interrupt_reg;
+	t->ioarrin_reg = base + p->ioarrin_reg;
+	t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
+	t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
+	t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
+}
+
+/**
+ * ipr_get_chip_cfg - Find adapter chip configuration
+ * @dev_id:		PCI device id struct
+ *
+ * Return value:
+ * 	ptr to chip config on success / NULL on failure
+ **/
+static const struct ipr_chip_cfg_t * __devinit
+ipr_get_chip_cfg(const struct pci_device_id *dev_id)
+{
+	int i;
+
+	if (dev_id->driver_data)
+		return (const struct ipr_chip_cfg_t *)dev_id->driver_data;
+
+	for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
+		if (ipr_chip[i].vendor == dev_id->vendor &&
+		    ipr_chip[i].device == dev_id->device)
+			return ipr_chip[i].cfg;
+	return NULL;
+}
+
+/**
+ * ipr_probe_ioa - Allocates memory and does first stage of initialization
+ * @pdev:		PCI device struct
+ * @dev_id:		PCI device id struct
+ *
+ * Return value:
+ * 	0 on success / non-zero on failure
+ **/
+static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
+				   const struct pci_device_id *dev_id)
+{
+	struct ipr_ioa_cfg *ioa_cfg;
+	struct Scsi_Host *host;
+	unsigned long ipr_regs_pci;
+	void __iomem *ipr_regs;
+	u32 rc = PCIBIOS_SUCCESSFUL;
+
+	ENTER;
+
+	if ((rc = pci_enable_device(pdev))) {
+		dev_err(&pdev->dev, "Cannot enable adapter\n");
+		goto out;
+	}
+
+	dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
+
+	host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
+
+	if (!host) {
+		dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
+		rc = -ENOMEM;
+		goto out_disable;
+	}
+
+	ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
+	memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
+
+	ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
+
+	if (!ioa_cfg->chip_cfg) {
+		dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
+			dev_id->vendor, dev_id->device);
+		goto out_scsi_host_put;
+	}
+
+	ipr_regs_pci = pci_resource_start(pdev, 0);
+
+	rc = pci_request_regions(pdev, IPR_NAME);
+	if (rc < 0) {
+		dev_err(&pdev->dev,
+			"Couldn't register memory range of registers\n");
+		goto out_scsi_host_put;
+	}
+
+	ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
+
+	if (!ipr_regs) {
+		dev_err(&pdev->dev,
+			"Couldn't map memory range of registers\n");
+		rc = -ENOMEM;
+		goto out_release_regions;
+	}
+
+	ioa_cfg->hdw_dma_regs = ipr_regs;
+	ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
+	ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
+
+	ipr_init_ioa_cfg(ioa_cfg, host, pdev);
+
+	pci_set_master(pdev);
+
+	rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
+		goto cleanup_nomem;
+	}
+
+	rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
+				   ioa_cfg->chip_cfg->cache_line_size);
+
+	if (rc != PCIBIOS_SUCCESSFUL) {
+		dev_err(&pdev->dev, "Write of cache line size failed\n");
+		rc = -EIO;
+		goto cleanup_nomem;
+	}
+
+	/* Save away PCI config space for use following IOA reset */
+	rc = pci_save_state(pdev);
+
+	if (rc != PCIBIOS_SUCCESSFUL) {
+		dev_err(&pdev->dev, "Failed to save PCI config space\n");
+		rc = -EIO;
+		goto cleanup_nomem;
+	}
+
+	if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
+		goto cleanup_nomem;
+
+	if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
+		goto cleanup_nomem;
+
+	rc = ipr_alloc_mem(ioa_cfg);
+	if (rc < 0) {
+		dev_err(&pdev->dev,
+			"Couldn't allocate enough memory for device driver!\n");
+		goto cleanup_nomem;
+	}
+
+	ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
+	rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg);
+
+	if (rc) {
+		dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
+			pdev->irq, rc);
+		goto cleanup_nolog;
+	}
+
+	spin_lock(&ipr_driver_lock);
+	list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
+	spin_unlock(&ipr_driver_lock);
+
+	LEAVE;
+out:
+	return rc;
+
+cleanup_nolog:
+	ipr_free_mem(ioa_cfg);
+cleanup_nomem:
+	iounmap(ipr_regs);
+out_release_regions:
+	pci_release_regions(pdev);
+out_scsi_host_put:
+	scsi_host_put(host);
+out_disable:
+	pci_disable_device(pdev);
+	goto out;
+}
+
+/**
+ * ipr_scan_vsets - Scans for VSET devices
+ * @ioa_cfg:	ioa config struct
+ *
+ * Description: Since the VSET resources do not follow SAM in that we can have
+ * sparse LUNs with no LUN 0, we have to scan for these ourselves.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
+{
+	int target, lun;
+
+	for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
+		for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
+			scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
+}
+
+/**
+ * ipr_initiate_ioa_bringdown - Bring down an adapter
+ * @ioa_cfg:		ioa config struct
+ * @shutdown_type:	shutdown type
+ *
+ * Description: This function will initiate bringing down the adapter.
+ * This consists of issuing an IOA shutdown to the adapter
+ * to flush the cache, and running BIST.
+ * If the caller needs to wait on the completion of the reset,
+ * the caller must sleep on the reset_wait_q.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
+				       enum ipr_shutdown_type shutdown_type)
+{
+	ENTER;
+	if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
+		ioa_cfg->sdt_state = ABORT_DUMP;
+	ioa_cfg->reset_retries = 0;
+	ioa_cfg->in_ioa_bringdown = 1;
+	ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
+	LEAVE;
+}
+
+/**
+ * __ipr_remove - Remove a single adapter
+ * @pdev:	pci device struct
+ *
+ * Adapter hot plug remove entry point.
+ *
+ * Return value:
+ * 	none
+ **/
+static void __ipr_remove(struct pci_dev *pdev)
+{
+	unsigned long host_lock_flags = 0;
+	struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
+	ENTER;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
+	ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
+
+	spin_lock(&ipr_driver_lock);
+	list_del(&ioa_cfg->queue);
+	spin_unlock(&ipr_driver_lock);
+
+	if (ioa_cfg->sdt_state == ABORT_DUMP)
+		ioa_cfg->sdt_state = WAIT_FOR_DUMP;
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
+
+	ipr_free_all_resources(ioa_cfg);
+
+	LEAVE;
+}
+
+/**
+ * ipr_remove - IOA hot plug remove entry point
+ * @pdev:	pci device struct
+ *
+ * Adapter hot plug remove entry point.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_remove(struct pci_dev *pdev)
+{
+	struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
+
+	ENTER;
+
+	ioa_cfg->allow_cmds = 0;
+	flush_scheduled_work();
+	ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
+			      &ipr_trace_attr);
+	ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
+			     &ipr_dump_attr);
+	scsi_remove_host(ioa_cfg->host);
+
+	__ipr_remove(pdev);
+
+	LEAVE;
+}
+
+/**
+ * ipr_probe - Adapter hot plug add entry point
+ *
+ * Return value:
+ * 	0 on success / non-zero on failure
+ **/
+static int __devinit ipr_probe(struct pci_dev *pdev,
+			       const struct pci_device_id *dev_id)
+{
+	struct ipr_ioa_cfg *ioa_cfg;
+	int rc;
+
+	rc = ipr_probe_ioa(pdev, dev_id);
+
+	if (rc)
+		return rc;
+
+	ioa_cfg = pci_get_drvdata(pdev);
+	rc = ipr_probe_ioa_part2(ioa_cfg);
+
+	if (rc) {
+		__ipr_remove(pdev);
+		return rc;
+	}
+
+	rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
+
+	if (rc) {
+		__ipr_remove(pdev);
+		return rc;
+	}
+
+	rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
+				   &ipr_trace_attr);
+
+	if (rc) {
+		scsi_remove_host(ioa_cfg->host);
+		__ipr_remove(pdev);
+		return rc;
+	}
+
+	rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
+				   &ipr_dump_attr);
+
+	if (rc) {
+		ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
+				      &ipr_trace_attr);
+		scsi_remove_host(ioa_cfg->host);
+		__ipr_remove(pdev);
+		return rc;
+	}
+
+	scsi_scan_host(ioa_cfg->host);
+	ipr_scan_vsets(ioa_cfg);
+	scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
+	ioa_cfg->allow_ml_add_del = 1;
+	schedule_work(&ioa_cfg->work_q);
+	return 0;
+}
+
+/**
+ * ipr_shutdown - Shutdown handler.
+ * @dev:	device struct
+ *
+ * This function is invoked upon system shutdown/reboot. It will issue
+ * an adapter shutdown to the adapter to flush the write cache.
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_shutdown(struct device *dev)
+{
+	struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(to_pci_dev(dev));
+	unsigned long lock_flags = 0;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+}
+
+static struct pci_device_id ipr_pci_table[] __devinitdata = {
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702,
+		0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780,
+		0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E,
+		0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, ipr_pci_table);
+
+static struct pci_driver ipr_driver = {
+	.name = IPR_NAME,
+	.id_table = ipr_pci_table,
+	.probe = ipr_probe,
+	.remove = ipr_remove,
+	.driver = {
+		.shutdown = ipr_shutdown,
+	},
+};
+
+/**
+ * ipr_init - Module entry point
+ *
+ * Return value:
+ * 	0 on success / negative value on failure
+ **/
+static int __init ipr_init(void)
+{
+	ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
+		 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
+
+	return pci_module_init(&ipr_driver);
+}
+
+/**
+ * ipr_exit - Module unload
+ *
+ * Module unload entry point.
+ *
+ * Return value:
+ * 	none
+ **/
+static void __exit ipr_exit(void)
+{
+	pci_unregister_driver(&ipr_driver);
+}
+
+module_init(ipr_init);
+module_exit(ipr_exit);