mpt2sas: mpt2sas_base sources

mpt2sas_base

Common API layer interface to MPT (Message Passing Technology) firmware.

Signed-off-by Eric Moore <[email protected]>

---

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +493 -0

@@ -0,0 +1,3403 @@
+/*
+ * This is the Fusion MPT base driver providing common API layer interface
+ * for access to MPT (Message Passing Technology) firmware.
+ *
+ * This code is based on drivers/scsi/mpt2sas/mpt2_base.c
+ * Copyright (C) 2007-2008  LSI Corporation
+ *  (mailto:[email protected])
+ *
+ * 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.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/sort.h>
+#include <linux/io.h>
+
+#include "mpt2sas_base.h"
+
+static MPT_CALLBACK    mpt_callbacks[MPT_MAX_CALLBACKS];
+
+#define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
+#define MPT2SAS_MAX_REQUEST_QUEUE 500 /* maximum controller queue depth */
+
+static int max_queue_depth = -1;
+module_param(max_queue_depth, int, 0);
+MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
+
+static int max_sgl_entries = -1;
+module_param(max_sgl_entries, int, 0);
+MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
+
+static int msix_disable = -1;
+module_param(msix_disable, int, 0);
+MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
+
+/**
+ * _base_fault_reset_work - workq handling ioc fault conditions
+ * @work: input argument, used to derive ioc
+ * Context: sleep.
+ *
+ * Return nothing.
+ */
+static void
+_base_fault_reset_work(struct work_struct *work)
+{
+       struct MPT2SAS_ADAPTER *ioc =
+           container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
+       unsigned long    flags;
+       u32 doorbell;
+       int rc;
+
+       spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+       if (ioc->ioc_reset_in_progress)
+               goto rearm_timer;
+       spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+
+       doorbell = base_get_iocstate(ioc, 0);
+       if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+               rc = base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
+               printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
+                   __func__, (rc == 0) ? "success" : "failed");
+               doorbell = base_get_iocstate(ioc, 0);
+               if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+                       base_fault_info(ioc, doorbell &
+                           MPI2_DOORBELL_DATA_MASK);
+       }
+
+       spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+ rearm_timer:
+       if (ioc->fault_reset_work_q)
+               queue_delayed_work(ioc->fault_reset_work_q,
+                   &ioc->fault_reset_work,
+                   msecs_to_jiffies(FAULT_POLLING_INTERVAL));
+       spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+}
+
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
+/**
+ * _base_sas_ioc_info - verbose translation of the ioc status
+ * @ioc: pointer to scsi command object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @request_hdr: request mf
+ *
+ * Return nothing.
+ */
+static void
+_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
+     MPI2RequestHeader_t *request_hdr)
+{
+       u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
+           MPI2_IOCSTATUS_MASK;
+       char *desc = NULL;
+       u16 frame_sz;
+       char *func_str = NULL;
+
+       /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
+       if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+           request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
+           request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
+               return;
+
+       switch (ioc_status) {
+
+/****************************************************************************
+*  Common IOCStatus values for all replies
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_INVALID_FUNCTION:
+               desc = "invalid function";
+               break;
+       case MPI2_IOCSTATUS_BUSY:
+               desc = "busy";
+               break;
+       case MPI2_IOCSTATUS_INVALID_SGL:
+               desc = "invalid sgl";
+               break;
+       case MPI2_IOCSTATUS_INTERNAL_ERROR:
+               desc = "internal error";
+               break;
+       case MPI2_IOCSTATUS_INVALID_VPID:
+               desc = "invalid vpid";
+               break;
+       case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
+               desc = "insufficient resources";
+               break;
+       case MPI2_IOCSTATUS_INVALID_FIELD:
+               desc = "invalid field";
+               break;
+       case MPI2_IOCSTATUS_INVALID_STATE:
+               desc = "invalid state";
+               break;
+       case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
+               desc = "op state not supported";
+               break;
+
+/****************************************************************************
+*  Config IOCStatus values
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
+               desc = "config invalid action";
+               break;
+       case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
+               desc = "config invalid type";
+               break;
+       case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
+               desc = "config invalid page";
+               break;
+       case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
+               desc = "config invalid data";
+               break;
+       case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
+               desc = "config no defaults";
+               break;
+       case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
+               desc = "config cant commit";
+               break;
+
+/****************************************************************************
+*  SCSI IO Reply
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
+       case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
+       case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
+       case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
+       case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
+       case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
+       case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
+       case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
+       case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
+       case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
+       case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
+       case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
+               break;
+
+/****************************************************************************
+*  For use by SCSI Initiator and SCSI Target end-to-end data protection
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
+               desc = "eedp guard error";
+               break;
+       case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
+               desc = "eedp ref tag error";
+               break;
+       case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
+               desc = "eedp app tag error";
+               break;
+
+/****************************************************************************
+*  SCSI Target values
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
+               desc = "target invalid io index";
+               break;
+       case MPI2_IOCSTATUS_TARGET_ABORTED:
+               desc = "target aborted";
+               break;
+       case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
+               desc = "target no conn retryable";
+               break;
+       case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
+               desc = "target no connection";
+               break;
+       case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
+               desc = "target xfer count mismatch";
+               break;
+       case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
+               desc = "target data offset error";
+               break;
+       case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
+               desc = "target too much write data";
+               break;
+       case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
+               desc = "target iu too short";
+               break;
+       case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
+               desc = "target ack nak timeout";
+               break;
+       case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
+               desc = "target nak received";
+               break;
+
+/****************************************************************************
+*  Serial Attached SCSI values
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
+               desc = "smp request failed";
+               break;
+       case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
+               desc = "smp data overrun";
+               break;
+
+/****************************************************************************
+*  Diagnostic Buffer Post / Diagnostic Release values
+****************************************************************************/
+
+       case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
+               desc = "diagnostic released";
+               break;
+       default:
+               break;
+       }
+
+       if (!desc)
+               return;
+
+       switch (request_hdr->Function) {
+       case MPI2_FUNCTION_CONFIG:
+               frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
+               func_str = "config_page";
+               break;
+       case MPI2_FUNCTION_SCSI_TASK_MGMT:
+               frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
+               func_str = "task_mgmt";
+               break;
+       case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
+               frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
+               func_str = "sas_iounit_ctl";
+               break;
+       case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
+               frame_sz = sizeof(Mpi2SepRequest_t);
+               func_str = "enclosure";
+               break;
+       case MPI2_FUNCTION_IOC_INIT:
+               frame_sz = sizeof(Mpi2IOCInitRequest_t);
+               func_str = "ioc_init";
+               break;
+       case MPI2_FUNCTION_PORT_ENABLE:
+               frame_sz = sizeof(Mpi2PortEnableRequest_t);
+               func_str = "port_enable";
+               break;
+       case MPI2_FUNCTION_SMP_PASSTHROUGH:
+               frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
+               func_str = "smp_passthru";
+               break;
+       default:
+               frame_sz = 32;
+               func_str = "unknown";
+               break;
+       }
+
+       printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
+           " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
+
+       _debug_dump_mf(request_hdr, frame_sz/4);
+}
+
+/**
+ * _base_display_event_data - verbose translation of firmware asyn events
+ * @ioc: pointer to scsi command object
+ * @mpi_reply: reply mf payload returned from firmware
+ *
+ * Return nothing.
+ */
+static void
+_base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
+    Mpi2EventNotificationReply_t *mpi_reply)
+{
+       char *desc = NULL;
+       u16 event;
+
+       if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
+               return;
+
+       event = le16_to_cpu(mpi_reply->Event);
+
+       switch (event) {
+       case MPI2_EVENT_LOG_DATA:
+               desc = "Log Data";
+               break;
+       case MPI2_EVENT_STATE_CHANGE:
+               desc = "Status Change";
+               break;
+       case MPI2_EVENT_HARD_RESET_RECEIVED:
+               desc = "Hard Reset Received";
+               break;
+       case MPI2_EVENT_EVENT_CHANGE:
+               desc = "Event Change";
+               break;
+       case MPI2_EVENT_TASK_SET_FULL:
+               desc = "Task Set Full";
+               break;
+       case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
+               desc = "Device Status Change";
+               break;
+       case MPI2_EVENT_IR_OPERATION_STATUS:
+               desc = "IR Operation Status";
+               break;
+       case MPI2_EVENT_SAS_DISCOVERY:
+               desc =  "Discovery";
+               break;
+       case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
+               desc = "SAS Broadcast Primitive";
+               break;
+       case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
+               desc = "SAS Init Device Status Change";
+               break;
+       case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
+               desc = "SAS Init Table Overflow";
+               break;
+       case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
+               desc = "SAS Topology Change List";
+               break;
+       case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
+               desc = "SAS Enclosure Device Status Change";
+               break;
+       case MPI2_EVENT_IR_VOLUME:
+               desc = "IR Volume";
+               break;
+       case MPI2_EVENT_IR_PHYSICAL_DISK:
+               desc = "IR Physical Disk";
+               break;
+       case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
+               desc = "IR Configuration Change List";
+               break;
+       case MPI2_EVENT_LOG_ENTRY_ADDED:
+               desc = "Log Entry Added";
+               break;
+       }
+
+       if (!desc)
+               return;
+
+       printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
+}
+#endif
+
+/**
+ * _base_sas_log_info - verbose translation of firmware log info
+ * @ioc: pointer to scsi command object
+ * @log_info: log info
+ *
+ * Return nothing.
+ */
+static void
+_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
+{
+       union loginfo_type {
+               u32     loginfo;
+               struct {
+                       u32     subcode:16;
+                       u32     code:8;
+                       u32     originator:4;
+                       u32     bus_type:4;
+               } dw;
+       };
+       union loginfo_type sas_loginfo;
+       char *originator_str = NULL;
+
+       sas_loginfo.loginfo = log_info;
+       if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
+               return;
+
+       /* eat the loginfos associated with task aborts */
+       if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
+           0x31140000 || log_info == 0x31130000))
+               return;
+
+       switch (sas_loginfo.dw.originator) {
+       case 0:
+               originator_str = "IOP";
+               break;
+       case 1:
+               originator_str = "PL";
+               break;
+       case 2:
+               originator_str = "IR";
+               break;
+       }
+
+       printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
+           "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
+            originator_str, sas_loginfo.dw.code,
+            sas_loginfo.dw.subcode);
+}
+
+/**
+ * base_fault_info - verbose translation of firmware FAULT code
+ * @ioc: pointer to scsi command object
+ * @fault_code: fault code
+ *
+ * Return nothing.
+ */
+void
+base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
+{
+       printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
+           ioc->name, fault_code);
+}
+
+/**
+ * _base_display_reply_info -
+ * @ioc: pointer to scsi command object
+ * @smid: system request message index
+ * @VF_ID: virtual function id
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return nothing.
+ */
+static void
+_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID,
+    u32 reply)
+{
+       MPI2DefaultReply_t *mpi_reply;
+       u16 ioc_status;

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +86 -0

+       if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
+               _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
+}
+
+/**
+ * base_done - base internal command completion routine
+ * @ioc: pointer to scsi command object
+ * @smid: system request message index
+ * @VF_ID: virtual function id
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return nothing.
+ */
+void
+base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
+{
+       MPI2DefaultReply_t *mpi_reply;
+
+       mpi_reply =  base_get_reply_virt_addr(ioc, reply);
+       if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
+               return;
+
+       if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
+               return;
+
+       ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
+       if (mpi_reply) {
+               ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
+               memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
+       }
+       ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
+       complete(&ioc->base_cmds.done);
+}
+
+/**
+ * _base_async_event - main callback handler for firmware asyn events
+ * @ioc: pointer to scsi command object
+ * @VF_ID: virtual function id
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return nothing.
+ */
+static void
+_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
+{
+       Mpi2EventNotificationReply_t *mpi_reply;
+       Mpi2EventAckRequest_t *ack_request;
+       u16 smid;
+
+       mpi_reply =  base_get_reply_virt_addr(ioc, reply);
+       if (!mpi_reply)
+               return;
+       if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
+               return;
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
+       _base_display_event_data(ioc, mpi_reply);
+#endif
+       if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
+               goto out;
+       smid = base_get_smid(ioc, ioc->base_cb_idx);
+       if (!smid) {
+               printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
+                   ioc->name, __func__);
+               goto out;
+       }
+
+       ack_request = base_get_msg_frame(ioc, smid);
+       memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
+       ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
+       ack_request->Event = mpi_reply->Event;
+       ack_request->EventContext = mpi_reply->EventContext;
+       ack_request->VF_ID = VF_ID;
+       base_put_smid_default(ioc, smid, VF_ID);
+
+ out:
+       scsih_event_callback(ioc, VF_ID, reply); /* scsih callback handler */
+       ctl_event_callback(ioc, VF_ID, reply); /* ctl callback handler */
+}
+
+/**
+ * _base_mask_interrupts - disable interrupts
+ * @ioc: pointer to scsi command object
+ *
+ * Disabling ResetIRQ, Reply and Doorbell Interrupts
+ *
+ * Return nothing.

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +45 -0

+}
+
+/**
+ * _base_unmask_interrupts - enable interrupts
+ * @ioc: pointer to scsi command object
+ *
+ * Enabling only Reply Interrupts
+ *
+ * Return nothing.
+ */
+static void
+_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
+{
+       u32 him_register;
+
+       writel(0, &ioc->chip->HostInterruptStatus);
+       him_register = readl(&ioc->chip->HostInterruptMask);
+       him_register &= ~MPI2_HIM_RIM;
+       writel(him_register, &ioc->chip->HostInterruptMask);
+       ioc->mask_interrupts = 0;
+}
+
+/**
+ * base_interrupt - MPT adapter (IOC) specific interrupt handler.
+ * @irq: irq number (not used)
+ * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
+ * @r: pt_regs pointer (not used)
+ *
+ * Return IRQ_HANDLE if processed, else IRQ_NONE.
+ */
+static irqreturn_t
+base_interrupt(int irq, void *bus_id)
+{
+       u32 post_index, post_index_next, completed_cmds;
+       u8 request_desript_type;
+       u16 smid;
+       u8 cb_idx;
+       u32 reply;
+       u8 VF_ID;
+       int i;
+       struct MPT2SAS_ADAPTER *ioc = bus_id;
+
+       if (ioc->mask_interrupts)
+               return IRQ_NONE;
+

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +63 -0

+                       goto out;
+               reply = 0;
+               cb_idx = 0xFF;
+               smid = le16_to_cpu(ioc->reply_post_free[post_index].
+                   Default.DescriptorTypeDependent1);
+               VF_ID = ioc->reply_post_free[post_index].
+                   Default.VF_ID;
+               if (request_desript_type ==
+                   MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
+                       reply = le32_to_cpu(ioc->reply_post_free[post_index].
+                           AddressReply.ReplyFrameAddress);
+               } else if (request_desript_type ==
+                   MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
+                       goto next;
+               else if (request_desript_type ==
+                   MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
+                       goto next;
+               if (smid)
+                       cb_idx = ioc->scsi_lookup[smid - 1].cb_idx;
+               if (smid && cb_idx != 0xFF) {
+                       mpt_callbacks[cb_idx](ioc, smid, VF_ID, reply);
+                       if (reply)
+                               _base_display_reply_info(ioc, smid, VF_ID,
+                                   reply);
+                       base_free_smid(ioc, smid);
+               }
+               if (!smid)
+                       _base_async_event(ioc, VF_ID, reply);
+
+               /* reply free queue handling */
+               if (reply) {
+                       ioc->reply_free_host_index =
+                           (ioc->reply_free_host_index ==
+                           (ioc->reply_free_queue_depth - 1)) ?
+                           0 : ioc->reply_free_host_index + 1;
+                       ioc->reply_free[ioc->reply_free_host_index] =
+                           cpu_to_le32(reply);
+                       writel(ioc->reply_free_host_index,
+                           &ioc->chip->ReplyFreeHostIndex);
+                       wmb();
+               }
+
+ next:
+               post_index_next = (post_index == (ioc->reply_post_queue_depth -
+                   1)) ? 0 : post_index + 1;
+               request_desript_type =
+                   ioc->reply_post_free[post_index_next].Default.ReplyFlags
+                   & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
+               completed_cmds++;
+               if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
+                       goto out;
+               post_index = post_index_next;
+       } while (1);
+
+ out:
+
+       if (!completed_cmds)
+               return IRQ_NONE;
+
+       /* reply post descriptor handling */
+       post_index_next = ioc->reply_post_host_index;
+       for (i = 0 ; i < completed_cmds; i++) {
+               post_index = post_index_next;

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +141 -0

+       return IRQ_HANDLED;
+}
+
+/**
+ * base_release_callback_handler - clear interupt callback handler
+ * @cb_idx: callback index
+ *
+ * Return nothing.
+ */
+void
+base_release_callback_handler(u8 cb_idx)
+{
+       mpt_callbacks[cb_idx] = NULL;
+}
+
+/**
+ * base_register_callback_handler - obtain index for the interrupt callback handler
+ * @cb_func: callback function
+ *
+ * Returns cb_func.
+ */
+u8
+base_register_callback_handler(MPT_CALLBACK cb_func)
+{
+       u8 cb_idx;
+
+       for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
+               if (mpt_callbacks[cb_idx] == NULL)
+                       break;
+
+       mpt_callbacks[cb_idx] = cb_func;
+       return cb_idx;
+}
+
+/**
+ * base_initialize_callback_handler - initialize the interrupt callback handler
+ *
+ * Return nothing.
+ */
+void
+base_initialize_callback_handler(void)
+{
+       u8 cb_idx;
+
+       for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
+               base_release_callback_handler(cb_idx);
+}
+
+/**
+ * base_build_zero_len_sge - build zero length sg entry
+ * @ioc: per adapter object
+ * @paddr: virtual address for SGE
+ *
+ * Create a zero length scatter gather entry to insure the IOCs hardware has
+ * something to use if the target device goes brain dead and tries
+ * to send data even when none is asked for.
+ *
+ * Return nothing.
+ */
+void
+base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
+{
+       u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
+           MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
+           MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
+           MPI2_SGE_FLAGS_SHIFT);
+       ioc->base_add_sg_single(paddr, flags_length, -1);
+}
+
+/**
+ * base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
+ * @paddr: virtual address for SGE
+ * @flags_length: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * Return nothing.
+ */
+static void
+base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
+{
+       Mpi2SGESimple32_t *sgel = paddr;
+
+       flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
+           MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
+       sgel->FlagsLength = cpu_to_le32(flags_length);
+       sgel->Address = cpu_to_le32(dma_addr);
+}
+
+
+/**
+ * base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
+ * @paddr: virtual address for SGE
+ * @flags_length: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * Return nothing.
+ */
+static void
+base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
+{
+       Mpi2SGESimple64_t *sgel = paddr;
+
+       flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
+           MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
+       sgel->FlagsLength = cpu_to_le32(flags_length);
+       sgel->Address = cpu_to_le64(dma_addr);
+}
+
+#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
+
+/**
+ * _base_config_dma_addressing - set dma addressing
+ * @ioc: per adapter object
+ * @pdev: PCI device struct
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
+{
+       struct sysinfo s;
+       char *desc = NULL;
+
+       if (sizeof(dma_addr_t) > 4) {
+               const uint64_t required_mask =
+                   dma_get_required_mask(&pdev->dev);
+               if ((required_mask > DMA_32BIT_MASK) && !pci_set_dma_mask(pdev,
+                   DMA_64BIT_MASK) && !pci_set_consistent_dma_mask(pdev,
+                   DMA_64BIT_MASK)) {
+                       ioc->base_add_sg_single = &base_add_sg_single_64;
+                       ioc->sge_size = sizeof(Mpi2SGESimple64_t);
+                       desc = "64";
+                       goto out;
+               }
+       }
+
+       if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)
+           && !pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+               ioc->base_add_sg_single = &base_add_sg_single_32;
+               ioc->sge_size = sizeof(Mpi2SGESimple32_t);
+               desc = "32";

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +50 -0

+
+/**
+ * base_save_msix_table - backup msix vector table
+ * @ioc: per adapter object
+ *
+ * This address an errata where diag reset clears out the table
+ */
+static void
+base_save_msix_table(struct MPT2SAS_ADAPTER *ioc)
+{
+       int i;
+
+       if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
+               return;
+
+       for (i = 0; i < ioc->msix_vector_count; i++)
+               ioc->msix_table_backup[i] = ioc->msix_table[i];
+}
+
+/**
+ * base_restore_msix_table - this restores the msix vector table
+ * @ioc: per adapter object
+ *
+ */
+static void
+base_restore_msix_table(struct MPT2SAS_ADAPTER *ioc)
+{
+       int i;
+
+       if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
+               return;
+
+       for (i = 0; i < ioc->msix_vector_count; i++)
+               ioc->msix_table[i] = ioc->msix_table_backup[i];
+}
+
+/**
+ * base_check_enable_msix - checks MSIX capabable.
+ * @ioc: per adapter object
+ *
+ * Check to see if card is capable of MSIX, and set number
+ * of avaliable msix vectors
+ */
+static int
+base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
+{
+       int base;
+       u16 message_control;
+       u32 msix_table_offset;
+

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +65 -0

+
+       /* get msix table  */
+       pci_read_config_dword(ioc->pdev, base + 4, &msix_table_offset);
+       msix_table_offset &= 0xFFFFFFF8;
+       ioc->msix_table = (u32 *)((void *)ioc->chip + msix_table_offset);
+
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
+           "vector_count(%d), table_offset(0x%08x), table(%p)\n", ioc->name,
+           ioc->msix_vector_count, msix_table_offset, ioc->msix_table));
+       return 0;
+}
+
+/**
+ * base_disable_msix - disables msix
+ * @ioc: per adapter object
+ *
+ */
+static void
+base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
+{
+       if (ioc->msix_enable) {
+               pci_disable_msix(ioc->pdev);
+               kfree(ioc->msix_table_backup);
+               ioc->msix_table_backup = NULL;
+               ioc->msix_enable = 0;
+       }
+}
+
+/**
+ * base_enable_msix - enables msix, failback to io_apic
+ * @ioc: per adapter object
+ *
+ */
+static int
+base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
+{
+       struct msix_entry *entries = NULL;
+       int i, r;
+       u8 try_msix = 0;
+
+       if (msix_disable == -1 || msix_disable == 0)
+               try_msix = 1;
+
+       if (!try_msix)
+               goto try_ioapic;
+
+       if (base_check_enable_msix(ioc) != 0)
+               goto try_ioapic;
+
+       entries = kcalloc(ioc->msix_vector_count, sizeof(struct msix_entry),
+           GFP_KERNEL);
+       if (!entries) {
+               dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
+                   "msix_entry failed !!!\n", ioc->name));
+               goto try_ioapic;
+       }
+
+       for (i = 0; i < ioc->msix_vector_count; i++)
+               entries[i].entry = i;
+
+       ioc->msix_table_backup = kcalloc(ioc->msix_vector_count, 4, GFP_KERNEL);
+       if (!ioc->msix_table_backup) {
+               dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
+                   "msix_table_backup failed!!!\n", ioc->name));
+               goto try_ioapic;

drivers/scsi/mpt2sas/mpt2sas_base.c       2009-02-24 14:27:01.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.c       1969-12-31 17:00:00.000000000 -0700 +2388 -0

+       if (r) {
+               dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "unable to allocate "
+                   "interrupt %d !!!\n", ioc->name, entries[0].vector));
+               pci_disable_msix(ioc->pdev);
+               goto try_ioapic;
+       }
+
+       ioc->pci_irq = entries[0].vector;
+       ioc->msix_enable = 1;
+       kfree(entries);
+       return 0;
+
+/* failback to io_apic interrupt routing */
+ try_ioapic:
+       kfree(entries);
+
+       r = request_irq(ioc->pdev->irq, base_interrupt, IRQF_SHARED,
+           ioc->name, ioc);
+       if (r) {
+               printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
+                   ioc->name, ioc->pdev->irq);
+               r = -EBUSY;
+               goto out_fail;
+       }
+
+       ioc->pci_irq = ioc->pdev->irq;
+       return 0;
+
+ out_fail:
+       return r;
+}
+
+/**
+ * base_map_resources - map in controller resources (io/irq/memap)
+ * @ioc: per adapter object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+base_map_resources(struct MPT2SAS_ADAPTER *ioc)
+{
+       struct pci_dev *pdev = ioc->pdev;
+       u32 memap_sz;
+       u32 pio_sz;
+       int i, r = 0;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n",
+           ioc->name, __func__));
+
+       ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
+       if (pci_enable_device_mem(pdev)) {
+               printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
+                   "failed\n", ioc->name);
+               return -ENODEV;
+       }
+
+
+       if (pci_request_selected_regions(pdev, ioc->bars,
+           MPT2SAS_DRIVER_NAME)) {
+               printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
+                   "failed\n", ioc->name);
+               r = -ENODEV;
+               goto out_fail;
+       }
+
+       pci_set_master(pdev);
+
+       if (_base_config_dma_addressing(ioc, pdev) != 0) {
+               printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
+                   ioc->name, pci_name(pdev));
+               r = -ENODEV;
+               goto out_fail;
+       }
+
+       for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
+               if (pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE_IO) {
+                       if (pio_sz)
+                               continue;
+                       ioc->pio_chip = pci_resource_start(pdev, i);
+                       pio_sz = pci_resource_len(pdev, i);
+               } else {
+                       if (memap_sz)
+                               continue;
+                       ioc->chip_phys = pci_resource_start(pdev, i);
+                       memap_sz = pci_resource_len(pdev, i);
+                       ioc->chip = ioremap(ioc->chip_phys, memap_sz);
+                       if (ioc->chip == NULL) {
+                               printk(MPT2SAS_ERR_FMT "unable to map adapter "
+                                   "memory!\n", ioc->name);
+                               r = -EINVAL;
+                               goto out_fail;
+                       }
+               }
+       }
+
+       pci_set_drvdata(pdev, ioc->shost);
+       _base_mask_interrupts(ioc);
+       r = base_enable_msix(ioc);
+       if (r)
+               goto out_fail;
+
+       printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
+           ioc->name,  ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
+           "IO-APIC enabled"), ioc->pci_irq);
+       printk(MPT2SAS_INFO_FMT "iomem(0x%lx), mapped(0x%p), size(%d)\n",
+           ioc->name, ioc->chip_phys, ioc->chip, memap_sz);
+       printk(MPT2SAS_INFO_FMT "ioport(0x%lx), size(%d)\n",
+           ioc->name, ioc->pio_chip, pio_sz);
+
+       return 0;
+
+ out_fail:
+       if (ioc->chip_phys)
+               iounmap(ioc->chip);
+       ioc->chip_phys = 0;
+       ioc->pci_irq = -1;
+       pci_release_selected_regions(ioc->pdev, ioc->bars);
+       pci_disable_device(pdev);
+       pci_set_drvdata(pdev, NULL);
+       return r;
+}
+
+/**
+ * base_get_msg_frame_dma - obtain request mf pointer phys addr
+ * @ioc: per adapter object
+ * @smid: system request message index(smid zero is invalid)
+ *
+ * Returns phys pointer to message frame.
+ */
+dma_addr_t
+base_get_msg_frame_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
+{
+       return ioc->request_dma + (smid * ioc->request_sz);
+}
+
+/**
+ * base_get_msg_frame - obtain request mf pointer
+ * @ioc: per adapter object
+ * @smid: system request message index(smid zero is invalid)
+ *
+ * Returns virt pointer to message frame.
+ */
+void *
+base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
+{
+       return (void *)(ioc->request + (smid * ioc->request_sz));
+}
+
+/**
+ * base_get_sense_buffer - obtain a sense buffer assigned to a mf request
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns virt pointer to sense buffer.
+ */
+void *
+base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
+{
+       return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
+}
+
+/**
+ * base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns phys pointer to sense buffer.
+ */
+dma_addr_t
+base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
+{
+       return ioc->sense_dma + ((smid - 1) * SCSI_SENSE_BUFFERSIZE);
+}
+
+/**
+ * base_get_reply_virt_addr - obtain reply frames virt address
+ * @ioc: per adapter object
+ * @phys_addr: lower 32 physical addr of the reply
+ *
+ * Converts 32bit lower physical addr into a virt address.
+ */
+void *
+base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
+{
+       if (!phys_addr)
+               return NULL;
+       return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
+}
+
+/**
+ * base_get_smid - obtain a free smid
+ * @ioc: per adapter object
+ * @cb_idx: callback index
+ *
+ * Returns smid (zero is invalid)
+ */
+u16
+base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
+{
+       unsigned long flags;
+       struct request_tracker *request;
+       u16 smid;
+
+       spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+       if (list_empty(&ioc->free_list)) {
+               spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+               printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
+                   ioc->name, __func__);
+               return 0;
+       }
+
+       request = list_entry(ioc->free_list.next,
+           struct request_tracker, tracker_list);
+       request->cb_idx = cb_idx;
+       smid = request->smid;
+       list_del(&request->tracker_list);
+       spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+       return smid;
+}
+
+
+/**
+ * base_free_smid - put smid back on free_list
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Return nothing.
+ */
+void
+base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+       ioc->scsi_lookup[smid - 1].cb_idx = 0xFF;
+       list_add_tail(&ioc->scsi_lookup[smid - 1].tracker_list,
+           &ioc->free_list);
+       spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+       /*
+        * See _wait_for_commands_to_complete() call with regards to this code.
+        */
+       if (ioc->shost_recovery && ioc->pending_io_count) {
+               if (ioc->pending_io_count == 1)
+                       wake_up(&ioc->reset_wq);
+               ioc->pending_io_count--;
+       }
+}
+
+/**
+ * _base_writeq - 64 bit write to MMIO
+ * @ioc: per adapter object
+ * @b: data payload
+ * @addr: address in MMIO space
+ * @writeq_lock: spin lock
+ *
+ * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
+ * care of 32 bit environment where its not quarenteed to send the entire word
+ * in one transfer.
+ */
+#ifndef writeq
+static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
+    spinlock_t *writeq_lock)
+{
+       unsigned long flags;
+       __u64 data_out = cpu_to_le64(b);
+
+       spin_lock_irqsave(writeq_lock, flags);
+       writel((u32)(data_out), addr);
+       writel((u32)(data_out >> 32), (addr + 4));
+       spin_unlock_irqrestore(writeq_lock, flags);
+}
+#else
+static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
+    spinlock_t *writeq_lock)
+{
+       writeq(cpu_to_le64(b), addr);
+}
+#endif
+
+/**
+ * base_put_smid_scsi_io - send SCSI_IO request to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @vf_id: virtual function id
+ * @handle: device handle
+ *
+ * Return nothing.
+ */
+void
+base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id,
+    u16 handle)
+{
+       Mpi2RequestDescriptorUnion_t descriptor;
+       u64 *request = (u64 *)&descriptor;
+
+
+       descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
+       descriptor.SCSIIO.VF_ID = vf_id;
+       descriptor.SCSIIO.SMID = cpu_to_le16(smid);
+       descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
+       descriptor.SCSIIO.LMID = 0;
+       _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+           &ioc->scsi_lookup_lock);
+}
+
+
+/**
+ * base_put_smid_hi_priority - send Task Managment request to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @vf_id: virtual function id
+ *
+ * Return nothing.
+ */
+void
+base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id)
+{
+       Mpi2RequestDescriptorUnion_t descriptor;
+       u64 *request = (u64 *)&descriptor;
+
+       descriptor.HighPriority.RequestFlags =
+           MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
+       descriptor.HighPriority.VF_ID = vf_id;
+       descriptor.HighPriority.SMID = cpu_to_le16(smid);
+       descriptor.HighPriority.LMID = 0;
+       descriptor.HighPriority.Reserved1 = 0;
+       _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+           &ioc->scsi_lookup_lock);
+}
+
+/**
+ * base_put_smid_default - Default, primarily used for config pages
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @vf_id: virtual function id
+ *
+ * Return nothing.
+ */
+void
+base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id)
+{
+       Mpi2RequestDescriptorUnion_t descriptor;
+       u64 *request = (u64 *)&descriptor;
+
+       descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
+       descriptor.Default.VF_ID = vf_id;
+       descriptor.Default.SMID = cpu_to_le16(smid);
+       descriptor.Default.LMID = 0;
+       descriptor.Default.DescriptorTypeDependent = 0;
+       _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+           &ioc->scsi_lookup_lock);
+}
+
+/**
+ * base_put_smid_target_assist - send Target Assist/Status to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @vf_id: virtual function id
+ * @io_index: value used to track the IO
+ *
+ * Return nothing.
+ */
+void
+base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id,
+    u16 io_index)
+{
+       Mpi2RequestDescriptorUnion_t descriptor;
+       u64 *request = (u64 *)&descriptor;
+
+       descriptor.SCSITarget.RequestFlags =
+           MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
+       descriptor.SCSITarget.VF_ID = vf_id;
+       descriptor.SCSITarget.SMID = cpu_to_le16(smid);
+       descriptor.SCSITarget.LMID = 0;
+       descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
+       _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+           &ioc->scsi_lookup_lock);
+}
+
+/**
+ * _base_display_ioc_capabilities - Disply IOC's capabilities.
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
+{
+       int i = 0;
+       char desc[16];
+       u8 revision;
+       u32 iounit_pg1_flags;
+
+       pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
+       strncpy(desc, ioc->manu_pg0.ChipName, 16);
+       printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
+          "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
+           ioc->name, desc,
+          (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
+          (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
+          (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
+          ioc->facts.FWVersion.Word & 0x000000FF,
+          revision,
+          (ioc->bios_pg3.BiosVersion & 0xFF000000) >> 24,
+          (ioc->bios_pg3.BiosVersion & 0x00FF0000) >> 16,
+          (ioc->bios_pg3.BiosVersion & 0x0000FF00) >> 8,
+           ioc->bios_pg3.BiosVersion & 0x000000FF);
+
+       printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
+
+       if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
+               printk("Initiator");
+               i++;
+       }
+
+       if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
+               printk("%sTarget", i ? "," : "");
+               i++;
+       }
+
+       i = 0;
+       printk("), ");
+       printk("Capabilities=(");
+
+       if (ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
+               printk("Raid");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
+               printk("%sTLR", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
+               printk("%sMulticast", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
+               printk("%sBIDI Target", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
+               printk("%sEEDP", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
+               printk("%sSnapshot Buffer", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
+               printk("%sDiag Trace Buffer", i ? "," : "");
+               i++;
+       }
+
+       if (ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
+               printk("%sTask Set Full", i ? "," : "");
+               i++;
+       }
+
+       iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
+       if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
+               printk("%sNCQ", i ? "," : "");
+               i++;
+       }
+
+       printk(")\n");
+}
+
+/**
+ * _base_static_config_pages - static start of day config pages
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
+{
+       Mpi2ConfigReply_t mpi_reply;
+       u32 iounit_pg1_flags;
+
+       config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
+       config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
+       config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
+       config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
+       config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
+       config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
+       _base_display_ioc_capabilities(ioc);
+
+       /*
+        * Enable task_set_full handling in iounit_pg1 when the
+        * facts capabilities indicate that its supported.
+        */
+       iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
+       if ((ioc->facts.IOCCapabilities &
+           MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
+               iounit_pg1_flags &=
+                   ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
+       else
+               iounit_pg1_flags |=
+                   MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
+       ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
+       config_set_iounit_pg1(ioc, &mpi_reply, ioc->iounit_pg1);
+}
+
+/**
+ * _base_release_memory_pools - release memory
+ * @ioc: per adapter object
+ *
+ * Free memory allocated from _base_allocate_memory_pools.
+ *
+ * Return nothing.
+ */
+static void
+_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
+{
+       dexitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       if (ioc->request) {
+               pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
+                   ioc->request,  ioc->request_dma);
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)"
+                   ": free\n", ioc->name, ioc->request));
+               ioc->request = NULL;
+       }
+
+       if (ioc->sense) {
+               pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
+               if (ioc->sense_dma_pool)
+                       pci_pool_destroy(ioc->sense_dma_pool);
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)"
+                   ": free\n", ioc->name, ioc->sense));
+               ioc->sense = NULL;
+       }
+
+       if (ioc->reply) {
+               pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
+               if (ioc->reply_dma_pool)
+                       pci_pool_destroy(ioc->reply_dma_pool);
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)"
+                    ": free\n", ioc->name, ioc->reply));
+               ioc->reply = NULL;
+       }
+
+       if (ioc->reply_free) {
+               pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
+                   ioc->reply_free_dma);
+               if (ioc->reply_free_dma_pool)
+                       pci_pool_destroy(ioc->reply_free_dma_pool);
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool"
+                   "(0x%p): free\n", ioc->name, ioc->reply_free));
+               ioc->reply_free = NULL;
+       }
+
+       if (ioc->reply_post_free) {
+               pci_pool_free(ioc->reply_post_free_dma_pool,
+                   ioc->reply_post_free, ioc->reply_post_free_dma);
+               if (ioc->reply_post_free_dma_pool)
+                       pci_pool_destroy(ioc->reply_post_free_dma_pool);
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
+                   "reply_post_free_pool(0x%p): free\n", ioc->name,
+                   ioc->reply_post_free));
+               ioc->reply_post_free = NULL;
+       }
+
+       if (ioc->config_page) {
+               dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
+                   "config_page(0x%p): free\n", ioc->name,
+                   ioc->config_page));
+               pci_free_consistent(ioc->pdev, ioc->config_page_sz,
+                   ioc->config_page, ioc->config_page_dma);
+       }
+
+       kfree(ioc->scsi_lookup);
+}
+
+
+/**
+ * _base_allocate_memory_pools - allocate start of day memory pools
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 success, anything else error
+ */
+static int
+_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
+{
+       Mpi2IOCFactsReply_t *facts;
+       u32 queue_size, queue_diff;
+       u16 max_sge_elements;
+       u16 num_of_reply_frames;
+       u16 chains_needed_per_io;
+       u32 sz, total_sz;
+       u16 i;
+       u32 retry_sz;
+       u16 max_request_credit;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       retry_sz = 0;
+       facts = &ioc->facts;
+
+       /* command line tunables  for max sgl entries */
+       if (max_sgl_entries != -1) {
+               ioc->shost->sg_tablesize = (max_sgl_entries <
+                   MPT2SAS_SG_DEPTH) ? max_sgl_entries :
+                   MPT2SAS_SG_DEPTH;
+       } else {
+               ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
+       }
+
+       /* command line tunables  for max controller queue depth */
+       if (max_queue_depth != -1) {
+               max_request_credit = (max_queue_depth < facts->RequestCredit)
+                   ? max_queue_depth : facts->RequestCredit;
+       } else {
+               max_request_credit = (facts->RequestCredit >
+                   MPT2SAS_MAX_REQUEST_QUEUE) ? MPT2SAS_MAX_REQUEST_QUEUE :
+                   facts->RequestCredit;
+       }
+       ioc->request_depth = max_request_credit;
+
+       /* request frame size */
+       ioc->request_sz = facts->IOCRequestFrameSize * 4;
+
+       /* reply frame size */
+       ioc->reply_sz = facts->ReplyFrameSize * 4;
+
+ retry_allocation:
+       total_sz = 0;
+       /* calculate number of sg elements left over in the 1st frame */
+       max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
+           sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size);
+       ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size;
+
+       /* now do the same for a chain buffer */
+       max_sge_elements = ioc->request_sz - ioc->sge_size;
+       ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size;
+
+       ioc->chain_offset_value_for_main_message =
+           ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) +
+            (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4;
+
+       /*
+        *  MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
+        */
+       chains_needed_per_io = ((ioc->shost->sg_tablesize -
+          ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
+           + 1;
+       if (chains_needed_per_io > facts->MaxChainDepth) {
+               chains_needed_per_io = facts->MaxChainDepth;
+               ioc->shost->sg_tablesize = min_t(u16,
+               ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
+               * chains_needed_per_io), ioc->shost->sg_tablesize);
+       }
+       ioc->chains_needed_per_io = chains_needed_per_io;
+
+       /* reply free queue sizing - taking into account for events */
+       num_of_reply_frames = ioc->request_depth + 32;
+
+       /* number of replies frames can't be a multiple of 16 */
+       /* decrease number of reply frames by 1 */
+       if (!(num_of_reply_frames % 16))
+               num_of_reply_frames--;
+
+       /* calculate number of reply free queue entries
+        *  (must be multiple of 16)
+        */
+
+       /* (we know reply_free_queue_depth is not a multiple of 16) */
+       queue_size = num_of_reply_frames;
+       queue_size += 16 - (queue_size % 16);
+       ioc->reply_free_queue_depth = queue_size;
+
+       /* reply descriptor post queue sizing */
+       /* this size should be the number of request frames + number of reply
+        * frames
+        */
+
+       queue_size = ioc->request_depth + num_of_reply_frames + 1;
+       /* round up to 16 byte boundary */
+       if (queue_size % 16)
+               queue_size += 16 - (queue_size % 16);
+
+       /* check against IOC maximum reply post queue depth */
+       if (queue_size > facts->MaxReplyDescriptorPostQueueDepth) {
+               queue_diff = queue_size -
+                   facts->MaxReplyDescriptorPostQueueDepth;
+
+               /* round queue_diff up to multiple of 16 */
+               if (queue_diff % 16)
+                       queue_diff += 16 - (queue_diff % 16);
+
+               /* adjust request_depth, reply_free_queue_depth,
+                * and queue_size
+                */
+               ioc->request_depth -= queue_diff;
+               ioc->reply_free_queue_depth -= queue_diff;
+               queue_size -= queue_diff;
+       }
+       ioc->reply_post_queue_depth = queue_size;
+
+       /* max scsi host queue depth */
+       ioc->shost->can_queue = ioc->request_depth - INTERNAL_CMDS_COUNT;
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host queue: depth"
+           "(%d)\n", ioc->name, ioc->shost->can_queue));
+
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
+           "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
+           "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
+           ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
+           ioc->chains_needed_per_io));
+
+       /* contiguous pool for request and chains, 16 byte align, one extra "
+        * "frame for smid=0
+        */
+       ioc->chain_depth = ioc->chains_needed_per_io * ioc->request_depth;
+       sz = ((ioc->request_depth + 1 + ioc->chain_depth) * ioc->request_sz);
+
+       ioc->request_dma_sz = sz;
+       ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
+       if (!ioc->request) {
+               printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
+                   "failed: req_depth(%d), chains_per_io(%d), frame_sz(%d), "
+                   "total(%d kB)\n", ioc->name, ioc->request_depth,
+                   ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
+               if (ioc->request_depth < MPT2SAS_SAS_QUEUE_DEPTH)
+                       goto out;
+               retry_sz += 64;
+               ioc->request_depth = max_request_credit - retry_sz;
+               goto retry_allocation;
+       }
+
+       if (retry_sz)
+               printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
+                   "succeed: req_depth(%d), chains_per_io(%d), frame_sz(%d), "
+                   "total(%d kb)\n", ioc->name, ioc->request_depth,
+                   ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
+
+       ioc->chain = ioc->request + ((ioc->request_depth + 1) *
+           ioc->request_sz);
+       ioc->chain_dma = ioc->request_dma + ((ioc->request_depth + 1) *
+           ioc->request_sz);
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): "
+           "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
+           ioc->request, ioc->request_depth, ioc->request_sz,
+           ((ioc->request_depth + 1) * ioc->request_sz)/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool(0x%p): depth"
+           "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->chain,
+           ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth *
+           ioc->request_sz))/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n",
+           ioc->name, (unsigned long long) ioc->request_dma));
+       total_sz += sz;
+
+       ioc->scsi_lookup = kcalloc(ioc->request_depth,
+           sizeof(struct request_tracker), GFP_KERNEL);
+       if (!ioc->scsi_lookup) {
+               printk(MPT2SAS_ERR_FMT "scsi_lookup: kcalloc failed\n",
+                   ioc->name);
+               goto out;
+       }
+
+        /* initialize some bits */
+       for (i = 0; i < ioc->request_depth; i++)
+               ioc->scsi_lookup[i].smid = i + 1;
+
+       /* sense buffers, 4 byte align */
+       sz = ioc->request_depth * SCSI_SENSE_BUFFERSIZE;
+       ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
+           0);
+       if (!ioc->sense_dma_pool) {
+               printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n",
+                   ioc->name);
+               goto out;
+       }
+       ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
+           &ioc->sense_dma);
+       if (!ioc->sense) {
+               printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n",
+                   ioc->name);
+               goto out;
+       }
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
+           "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
+           "(%d kB)\n", ioc->name, ioc->sense, ioc->request_depth,
+           SCSI_SENSE_BUFFERSIZE, sz/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n",
+           ioc->name, (unsigned long long)ioc->sense_dma));
+       total_sz += sz;
+
+       /* reply pool, 4 byte align */
+       sz = ioc->reply_free_queue_depth * ioc->reply_sz;
+       ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
+           0);
+       if (!ioc->reply_dma_pool) {
+               printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n",
+                   ioc->name);
+               goto out;
+       }
+       ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
+           &ioc->reply_dma);
+       if (!ioc->reply) {
+               printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n",
+                   ioc->name);
+               goto out;
+       }
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth"
+           "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply,
+           ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n",
+           ioc->name, (unsigned long long)ioc->reply_dma));
+       total_sz += sz;
+
+       /* reply free queue, 16 byte align */
+       sz = ioc->reply_free_queue_depth * 4;
+       ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
+           ioc->pdev, sz, 16, 0);
+       if (!ioc->reply_free_dma_pool) {
+               printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create "
+                   "failed\n", ioc->name);
+               goto out;
+       }
+       ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
+           &ioc->reply_free_dma);
+       if (!ioc->reply_free) {
+               printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc "
+                   "failed\n", ioc->name);
+               goto out;
+       }
+       memset(ioc->reply_free, 0, sz);
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): "
+           "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
+           ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma"
+           "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma));
+       total_sz += sz;
+
+       /* reply post queue, 16 byte align */
+       sz = ioc->reply_post_queue_depth * sizeof(Mpi2DefaultReplyDescriptor_t);
+       ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
+           ioc->pdev, sz, 16, 0);
+       if (!ioc->reply_post_free_dma_pool) {
+               printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create "
+                   "failed\n", ioc->name);
+               goto out;
+       }
+       ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
+           GFP_KERNEL, &ioc->reply_post_free_dma);
+       if (!ioc->reply_post_free) {
+               printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc "
+                   "failed\n", ioc->name);
+               goto out;
+       }
+       memset(ioc->reply_post_free, 0, sz);
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool"
+           "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
+           ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
+           sz/1024));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = "
+           "(0x%llx)\n", ioc->name, (unsigned long long)
+           ioc->reply_post_free_dma));
+       total_sz += sz;
+
+       ioc->config_page_sz = 512;
+       ioc->config_page = pci_alloc_consistent(ioc->pdev,
+           ioc->config_page_sz, &ioc->config_page_dma);
+       if (!ioc->config_page) {
+               printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc "
+                   "failed\n", ioc->name);
+               goto out;
+       }
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size"
+           "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma"
+           "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma));
+       total_sz += ioc->config_page_sz;
+
+       printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n",
+           ioc->name, total_sz/1024);
+       printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), "
+           "Max Controller Queue Depth(%d)\n",
+           ioc->name, ioc->shost->can_queue, facts->RequestCredit);
+       printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n",
+           ioc->name, ioc->shost->sg_tablesize);
+       return 0;
+
+ out:
+       _base_release_memory_pools(ioc);
+       return -ENOMEM;
+}
+
+
+/**
+ * base_get_iocstate - Get the current state of a MPT adapter.
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @cooked: Request raw or cooked IOC state
+ *
+ * Returns all IOC Doorbell register bits if cooked==0, else just the
+ * Doorbell bits in MPI_IOC_STATE_MASK.
+ */
+u32
+base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked)
+{
+       u32 s, sc;
+
+       s = readl(&ioc->chip->Doorbell);
+       sc = s & MPI2_IOC_STATE_MASK;
+       return cooked ? sc : s;
+}
+
+/**
+ * _base_wait_on_iocstate - waiting on a particular ioc state
+ * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
+    int sleep_flag)
+{
+       u32 count, cntdn;
+       u32 current_state;
+
+       count = 0;
+       cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+       do {
+               current_state = base_get_iocstate(ioc, 1);
+               if (current_state == ioc_state)
+                       return 0;
+               if (count && current_state == MPI2_IOC_STATE_FAULT)
+                       break;
+               if (sleep_flag == CAN_SLEEP)
+                       msleep(1);
+               else
+                       udelay(500);
+               count++;
+       } while (--cntdn);
+
+       return current_state;
+}
+
+/**
+ * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
+ * a write to the doorbell)
+ * @ioc: per adapter object
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ * Notes: MPI2_HIS_DOORBELL_INTERRUPT - set to one when IOC writes to doorbell.
+ */
+static int
+_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
+    int sleep_flag)
+{
+       u32 cntdn, count;
+       u32 int_status;
+
+       count = 0;
+       cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+       do {
+               int_status = readl(&ioc->chip->HostInterruptStatus);
+               if (int_status & MPI2_HIS_DOORBELL_INTERRUPT) {
+                       dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+                           "successfull count(%d), timeout(%d)\n", ioc->name,
+                           __func__, count, timeout));
+                       return 0;
+               }
+               if (sleep_flag == CAN_SLEEP)
+                       msleep(1);
+               else
+                       udelay(500);
+               count++;
+       } while (--cntdn);
+
+       printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
+           "int_status(%x)!\n", ioc->name, __func__, count, int_status);
+       return -EFAULT;
+}
+
+/**
+ * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
+ * @ioc: per adapter object
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ * Notes: MPI2_HIS_IOP_DOORBELL_STATUS - set to one when host writes to
+ * doorbell.
+ */
+static int
+_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
+    int sleep_flag)
+{
+       u32 cntdn, count;
+       u32 int_status;
+       u32 doorbell;
+
+       count = 0;
+       cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+       do {
+               int_status = readl(&ioc->chip->HostInterruptStatus);
+               if (!(int_status & MPI2_HIS_IOP_DOORBELL_STATUS)) {
+                       dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+                           "successfull count(%d), timeout(%d)\n", ioc->name,
+                           __func__, count, timeout));
+                       return 0;
+               } else if (int_status & MPI2_HIS_DOORBELL_INTERRUPT) {
+                       doorbell = readl(&ioc->chip->Doorbell);
+                       if ((doorbell & MPI2_IOC_STATE_MASK) ==
+                           MPI2_IOC_STATE_FAULT) {
+                               base_fault_info(ioc , doorbell);
+                               return -EFAULT;
+                       }
+               } else if (int_status == 0xFFFFFFFF)
+                       goto out;
+
+               if (sleep_flag == CAN_SLEEP)
+                       msleep(1);
+               else
+                       udelay(500);
+               count++;
+       } while (--cntdn);
+
+ out:
+       printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
+           "int_status(%x)!\n", ioc->name, __func__, count, int_status);
+       return -EFAULT;
+}
+
+#if defined(MUR)
+/**
+ * _base_send_ioc_reset - send doorbell reset
+ * @ioc: per adapter object
+ * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout,
+    int sleep_flag)
+{
+       u32 ioc_state;
+       int r = 0;
+
+       if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
+               printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n",
+                   ioc->name, __func__);
+               return -EFAULT;
+       }
+
+       if (!(ioc->facts.IOCCapabilities &
+          MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
+               return -EFAULT;
+
+       printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name);
+
+       writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
+           &ioc->chip->Doorbell);
+       if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
+               r = -EFAULT;
+               goto out;
+       }
+       ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
+           timeout, sleep_flag);
+       if (ioc_state) {
+               printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
+                   " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
+               r = -EFAULT;
+               goto out;
+       }
+ out:
+       printk(MPT2SAS_INFO_FMT "message unit reset: %s\n",
+           ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
+       return r;
+}
+#endif
+
+/**
+ * _base_handshake_req_reply_wait - send request thru doorbell interface
+ * @ioc: per adapter object
+ * @request_bytes: request length
+ * @request: pointer having request payload
+ * @reply_bytes: reply length
+ * @reply: pointer to reply payload
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes,
+    u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
+{
+       MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
+       int i;
+       u8 failed;
+       u16 dummy;
+       u32 *mfp;
+
+       /* make sure doorbell is not in use */
+       if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
+               printk(MPT2SAS_ERR_FMT "doorbell is in use "
+                   " (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+
+       /* clear pending doorbell interrupts from previous state changes */
+       if (readl(&ioc->chip->HostInterruptStatus) &
+           MPI2_HIS_IOC2SYS_DB_STATUS)
+               writel(0, &ioc->chip->HostInterruptStatus);
+
+       /* send message to ioc */
+       writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
+           ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
+           &ioc->chip->Doorbell);
+
+       if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+               printk(MPT2SAS_ERR_FMT "doorbell handshake "
+                  "int failed (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+       writel(0, &ioc->chip->HostInterruptStatus);
+
+       if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
+               printk(MPT2SAS_ERR_FMT "doorbell handshake "
+                   "ack failed (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+
+       /* send message 32-bits at a time */
+       for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
+               writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
+               if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
+                       failed = 1;
+       }
+
+       if (failed) {
+               printk(MPT2SAS_ERR_FMT "doorbell handshake "
+                   "sending request failed (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+
+       /* now wait for the reply */
+       if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
+               printk(MPT2SAS_ERR_FMT "doorbell handshake "
+                  "int failed (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+
+       /* read the first two 16-bits, it gives the total length of the reply */
+       reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+           & MPI2_DOORBELL_DATA_MASK);
+       writel(0, &ioc->chip->HostInterruptStatus);
+       if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+               printk(MPT2SAS_ERR_FMT "doorbell handshake "
+                  "int failed (line=%d)\n", ioc->name, __LINE__);
+               return -EFAULT;
+       }
+       reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+           & MPI2_DOORBELL_DATA_MASK);
+       writel(0, &ioc->chip->HostInterruptStatus);
+
+       for (i = 2; i < default_reply->MsgLength * 2; i++)  {
+               if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+                       printk(MPT2SAS_ERR_FMT "doorbell "
+                           "handshake int failed (line=%d)\n", ioc->name,
+                           __LINE__);
+                       return -EFAULT;
+               }
+               if (i >=  reply_bytes/2) /* overflow case */
+                       dummy = readl(&ioc->chip->Doorbell);
+               else
+                       reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+                           & MPI2_DOORBELL_DATA_MASK);
+               writel(0, &ioc->chip->HostInterruptStatus);
+       }
+
+       _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
+       if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
+               dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use "
+                   " (line=%d)\n", ioc->name, __LINE__));
+       }
+
+       if (ioc->logging_level & MPT_DEBUG_INIT) {
+               mfp = (u32 *)reply;
+               printk(KERN_DEBUG "\toffset:data\n");
+               for (i = 0; i < reply_bytes/4; i++)
+                       printk(KERN_DEBUG "\t[0x%02x]:%08x\n", i*4,
+                           le32_to_cpu(mfp[i]));
+       }
+       return 0;
+}
+
+/**
+ * base_sas_iounit_control - send sas iounit control to FW
+ * @ioc: per adapter object
+ * @mpi_reply: the reply payload from FW
+ * @mpi_request: the request payload sent to FW
+ *
+ * The SAS IO Unit Control Request message allows the host to perform low-level
+ * operations, such as resets on the PHYs of the IO Unit, also allows the host
+ * to obtain the IOC assigned device handles for a device if it has other
+ * identifying information about the device, in addition allows the host to
+ * remove IOC resources associated with the device.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc, Mpi2SasIoUnitControlReply_t
+    *mpi_reply, Mpi2SasIoUnitControlRequest_t *mpi_request)
+{
+       u16 smid;
+       u32 ioc_state;
+       unsigned long timeleft;
+       u8 issue_reset;
+       int rc;
+       void *request;
+       u16 wait_state_count;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       mutex_lock(&ioc->base_cmds.mutex);
+
+       if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
+               printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
+                   ioc->name, __func__);
+               rc = -EAGAIN;
+               goto out;
+       }
+
+       wait_state_count = 0;
+       ioc_state = base_get_iocstate(ioc, 1);
+       while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+               if (wait_state_count++ == 10) {
+                       printk(MPT2SAS_ERR_FMT
+                           "%s: failed due to ioc not operational\n",
+                           ioc->name, __func__);
+                       rc = -EFAULT;
+                       goto out;
+               }
+               ssleep(1);
+               ioc_state = base_get_iocstate(ioc, 1);
+               printk(MPT2SAS_INFO_FMT "%s: waiting for "
+                   "operational state(count=%d)\n", ioc->name,
+                   __func__, wait_state_count);
+       }
+
+       smid = base_get_smid(ioc, ioc->base_cb_idx);
+       if (!smid) {
+               printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
+                   ioc->name, __func__);
+               rc = -EAGAIN;
+               goto out;
+       }
+
+       rc = 0;
+       ioc->base_cmds.status = MPT2_CMD_PENDING;
+       request = base_get_msg_frame(ioc, smid);
+       ioc->base_cmds.smid = smid;
+       memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
+       if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
+           mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
+               ioc->ioc_link_reset_in_progress = 1;
+       base_put_smid_default(ioc, smid, mpi_request->VF_ID);
+       timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+           msecs_to_jiffies(10000));
+       if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
+           mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
+           ioc->ioc_link_reset_in_progress)
+               ioc->ioc_link_reset_in_progress = 0;
+       if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
+               printk(MPT2SAS_ERR_FMT "%s: timeout\n",
+                   ioc->name, __func__);
+               _debug_dump_mf(mpi_request,
+                   sizeof(Mpi2SasIoUnitControlRequest_t)/4);
+               if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
+                       issue_reset = 1;
+               goto issue_host_reset;
+       }
+       if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
+               memcpy(mpi_reply, ioc->base_cmds.reply,
+                   sizeof(Mpi2SasIoUnitControlReply_t));
+       else
+               memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       goto out;
+
+ issue_host_reset:
+       if (issue_reset)
+               base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       rc = -EFAULT;
+ out:
+       mutex_unlock(&ioc->base_cmds.mutex);
+       return rc;
+}
+
+
+/**
+ * base_scsi_enclosure_processor - sending request to sep device
+ * @ioc: per adapter object
+ * @mpi_reply: the reply payload from FW
+ * @mpi_request: the request payload sent to FW
+ *
+ * The SCSI Enclosure Processor request message causes the IOC to
+ * communicate with SES devices to control LED status signals.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc, Mpi2SepReply_t
+    *mpi_reply, Mpi2SepRequest_t *mpi_request)
+{
+       u16 smid;
+       u32 ioc_state;
+       unsigned long timeleft;
+       u8 issue_reset;
+       int rc;
+       void *request;
+       u16 wait_state_count;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       mutex_lock(&ioc->base_cmds.mutex);
+
+       if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
+               printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
+                   ioc->name, __func__);
+               rc = -EAGAIN;
+               goto out;
+       }
+
+       wait_state_count = 0;
+       ioc_state = base_get_iocstate(ioc, 1);
+       while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+               if (wait_state_count++ == 10) {
+                       printk(MPT2SAS_ERR_FMT
+                           "%s: failed due to ioc not operational\n",
+                           ioc->name, __func__);
+                       rc = -EFAULT;
+                       goto out;
+               }
+               ssleep(1);
+               ioc_state = base_get_iocstate(ioc, 1);
+               printk(MPT2SAS_INFO_FMT "%s: waiting for "
+                   "operational state(count=%d)\n", ioc->name,
+                   __func__, wait_state_count);
+       }
+
+       smid = base_get_smid(ioc, ioc->base_cb_idx);
+       if (!smid) {
+               printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
+                   ioc->name, __func__);
+               rc = -EAGAIN;
+               goto out;
+       }
+
+       rc = 0;
+       ioc->base_cmds.status = MPT2_CMD_PENDING;
+       request = base_get_msg_frame(ioc, smid);
+       ioc->base_cmds.smid = smid;
+       memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
+       base_put_smid_default(ioc, smid, mpi_request->VF_ID);
+       timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+           msecs_to_jiffies(10000));
+       if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
+               printk(MPT2SAS_ERR_FMT "%s: timeout\n",
+                   ioc->name, __func__);
+               _debug_dump_mf(mpi_request,
+                   sizeof(Mpi2SepRequest_t)/4);
+               if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
+                       issue_reset = 1;
+               goto issue_host_reset;
+       }
+       if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
+               memcpy(mpi_reply, ioc->base_cmds.reply,
+                   sizeof(Mpi2SepReply_t));
+       else
+               memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       goto out;
+
+ issue_host_reset:
+       if (issue_reset)
+               base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       rc = -EFAULT;
+ out:
+       mutex_unlock(&ioc->base_cmds.mutex);
+       return rc;
+}
+
+/**
+ * _base_get_port_facts - obtain port facts reply and save in ioc
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
+{
+       Mpi2PortFactsRequest_t mpi_request;
+       Mpi2PortFactsReply_t mpi_reply, *pfacts;
+       int mpi_reply_sz, mpi_request_sz, r;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
+       mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
+       memset(&mpi_request, 0, mpi_request_sz);
+       mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
+       mpi_request.PortNumber = port;
+       r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
+           (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+
+       if (r != 0) {
+               printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
+                   ioc->name, __func__, r);
+               return r;
+       }
+
+       pfacts = &ioc->pfacts[port];
+       memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
+       pfacts->PortNumber = mpi_reply.PortNumber;
+       pfacts->VP_ID = mpi_reply.VP_ID;
+       pfacts->VF_ID = mpi_reply.VF_ID;
+       pfacts->MaxPostedCmdBuffers =
+           le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
+
+       return 0;
+}
+
+/**
+ * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
+{
+       Mpi2IOCFactsRequest_t mpi_request;
+       Mpi2IOCFactsReply_t mpi_reply, *facts;
+       int mpi_reply_sz, mpi_request_sz, r;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
+       mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
+       memset(&mpi_request, 0, mpi_request_sz);
+       mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
+       r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
+           (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+
+       if (r != 0) {
+               printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
+                   ioc->name, __func__, r);
+               return r;
+       }
+
+       facts = &ioc->facts;
+       memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
+       facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
+       facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
+       facts->VP_ID = mpi_reply.VP_ID;
+       facts->VF_ID = mpi_reply.VF_ID;
+       facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
+       facts->MaxChainDepth = mpi_reply.MaxChainDepth;
+       facts->WhoInit = mpi_reply.WhoInit;
+       facts->NumberOfPorts = mpi_reply.NumberOfPorts;
+       facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
+       facts->MaxReplyDescriptorPostQueueDepth =
+           le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
+       facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
+       facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
+       if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
+               ioc->ir_firmware = 1;
+       facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
+       facts->IOCRequestFrameSize =
+           le16_to_cpu(mpi_reply.IOCRequestFrameSize);
+       facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
+       facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
+       ioc->shost->max_id = -1;
+       facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
+       facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
+       facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
+       facts->HighPriorityCredit =
+           le16_to_cpu(mpi_reply.HighPriorityCredit);
+       facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
+       facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
+
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), "
+           "max chains per io(%d)\n", ioc->name, facts->RequestCredit,
+           facts->MaxChainDepth));
+       dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), "
+           "reply frame size(%d)\n", ioc->name,
+           facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
+       return 0;
+}
+
+/**
+ * _base_send_ioc_init - send ioc_init to firmware
+ * @ioc: per adapter object
+ * @VF_ID: virtual function id
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, int sleep_flag)
+{
+       Mpi2IOCInitRequest_t mpi_request;
+       Mpi2IOCInitReply_t mpi_reply;
+       int r;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
+       mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
+       mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
+       mpi_request.VF_ID = VF_ID;
+       mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
+       mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
+
+       /* In MPI Revision I (0xA), the SystemReplyFrameSize(offset 0x18) was
+        * removed and made reserved.  For those with older firmware will need
+        * this fix. It was decided that the Reply and Request frame sizes are
+        * the same.
+        */
+       if ((ioc->facts.HeaderVersion >> 8) < 0xA) {
+               mpi_request.Reserved7 = cpu_to_le16(ioc->reply_sz);
+/*             mpi_request.SystemReplyFrameSize =
+ *              cpu_to_le16(ioc->reply_sz);
+ */
+       }
+
+       mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
+       mpi_request.ReplyDescriptorPostQueueDepth =
+           cpu_to_le16(ioc->reply_post_queue_depth);
+       mpi_request.ReplyFreeQueueDepth =
+           cpu_to_le16(ioc->reply_free_queue_depth);
+
+#if BITS_PER_LONG > 32
+       mpi_request.SenseBufferAddressHigh =
+           cpu_to_le32(ioc->sense_dma >> 32);
+       mpi_request.SystemReplyAddressHigh =
+           cpu_to_le32(ioc->reply_dma >> 32);
+       mpi_request.SystemRequestFrameBaseAddress =
+           cpu_to_le64(ioc->request_dma);
+       mpi_request.ReplyFreeQueueAddress =
+           cpu_to_le64(ioc->reply_free_dma);
+       mpi_request.ReplyDescriptorPostQueueAddress =
+           cpu_to_le64(ioc->reply_post_free_dma);
+#else
+       mpi_request.SystemRequestFrameBaseAddress =
+           cpu_to_le32(ioc->request_dma);
+       mpi_request.ReplyFreeQueueAddress =
+           cpu_to_le32(ioc->reply_free_dma);
+       mpi_request.ReplyDescriptorPostQueueAddress =
+           cpu_to_le32(ioc->reply_post_free_dma);
+#endif
+
+       if (ioc->logging_level & MPT_DEBUG_INIT) {
+               u32 *mfp;
+               int i;
+
+               mfp = (u32 *)&mpi_request;
+               printk(KERN_DEBUG "\toffset:data\n");
+               for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
+                       printk(KERN_DEBUG "\t[0x%02x]:%08x\n", i*4,
+                           le32_to_cpu(mfp[i]));
+       }
+
+       r = _base_handshake_req_reply_wait(ioc,
+           sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
+           sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
+           sleep_flag);
+
+       if (r != 0) {
+               printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
+                   ioc->name, __func__, r);
+               return r;
+       }
+
+       if (mpi_reply.IOCStatus != MPI2_IOCSTATUS_SUCCESS ||
+           mpi_reply.IOCLogInfo) {
+               printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__);
+               r = -EIO;
+       }
+
+       return 0;
+}
+
+/**
+ * _base_send_port_enable - send port_enable(discovery stuff) to firmware
+ * @ioc: per adapter object
+ * @VF_ID: virtual function id
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, int sleep_flag)
+{
+       Mpi2PortEnableRequest_t *mpi_request;
+       u32 ioc_state;
+       unsigned long timeleft;
+       int r = 0;
+       u16 smid;
+
+       printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
+
+       if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
+               printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
+                   ioc->name, __func__);
+               return -EAGAIN;
+       }
+
+       smid = base_get_smid(ioc, ioc->base_cb_idx);
+       if (!smid) {
+               printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
+                   ioc->name, __func__);
+               return -EAGAIN;
+       }
+
+       ioc->base_cmds.status = MPT2_CMD_PENDING;
+       mpi_request = base_get_msg_frame(ioc, smid);
+       ioc->base_cmds.smid = smid;
+       memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
+       mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
+       mpi_request->VF_ID = VF_ID;
+
+       base_put_smid_default(ioc, smid, VF_ID);
+       timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+           300*HZ);
+       if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
+               printk(MPT2SAS_ERR_FMT "%s: timeout\n",
+                   ioc->name, __func__);
+               _debug_dump_mf(mpi_request,
+                   sizeof(Mpi2PortEnableRequest_t)/4);
+               if (ioc->base_cmds.status & MPT2_CMD_RESET)
+                       r = -EFAULT;
+               else
+                       r = -ETIME;
+               goto out;
+       } else
+               dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: complete\n",
+                   ioc->name, __func__));
+
+       ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_OPERATIONAL,
+           60, sleep_flag);
+       if (ioc_state) {
+               printk(MPT2SAS_ERR_FMT "%s: failed going to operational state "
+                   " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
+               r = -EFAULT;
+       }
+ out:
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       printk(MPT2SAS_INFO_FMT "port enable: %s\n",
+           ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
+       return r;
+}
+
+/**
+ * _base_unmask_events - turn on notification for this event
+ * @ioc: per adapter object
+ * @event: firmware event
+ *
+ * The mask is stored in ioc->event_masks.
+ */
+static void
+_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event)
+{
+       u32 desired_event;
+
+       if (event >= 128)
+               return;
+
+       desired_event = (1 << (event % 32));
+
+       if (event < 32)
+               ioc->event_masks[0] &= ~desired_event;
+       else if (event < 64)
+               ioc->event_masks[1] &= ~desired_event;
+       else if (event < 96)
+               ioc->event_masks[2] &= ~desired_event;
+       else if (event < 128)
+               ioc->event_masks[3] &= ~desired_event;
+}
+
+/**
+ * _base_event_notification - send event notification
+ * @ioc: per adapter object
+ * @VF_ID: virtual function id
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_event_notification(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, int sleep_flag)
+{
+       Mpi2EventNotificationRequest_t *mpi_request;
+       unsigned long timeleft;
+       u16 smid;
+       int r = 0;
+       int i;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
+               printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
+                   ioc->name, __func__);
+               return -EAGAIN;
+       }
+
+       smid = base_get_smid(ioc, ioc->base_cb_idx);
+       if (!smid) {
+               printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
+                   ioc->name, __func__);
+               return -EAGAIN;
+       }
+       ioc->base_cmds.status = MPT2_CMD_PENDING;
+       mpi_request = base_get_msg_frame(ioc, smid);
+       ioc->base_cmds.smid = smid;
+       memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
+       mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
+       mpi_request->VF_ID = VF_ID;
+       for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
+               mpi_request->EventMasks[i] =
+                   le32_to_cpu(ioc->event_masks[i]);
+       base_put_smid_default(ioc, smid, VF_ID);
+       timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
+       if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
+               printk(MPT2SAS_ERR_FMT "%s: timeout\n",
+                   ioc->name, __func__);
+               _debug_dump_mf(mpi_request,
+                   sizeof(Mpi2EventNotificationRequest_t)/4);
+               if (ioc->base_cmds.status & MPT2_CMD_RESET)
+                       r = -EFAULT;
+               else
+                       r = -ETIME;
+       } else
+               dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: complete\n",
+                   ioc->name, __func__));
+       ioc->base_cmds.status = MPT2_CMD_NOT_USED;
+       return r;
+}
+
+/**
+ * base_validate_event_type - validating event types
+ * @ioc: per adapter object
+ * @event: firmware event
+ *
+ * This will turn on firmware event notification when application
+ * ask for that event. We don't mask events that are already enabled.
+ */
+void
+base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type)
+{
+       int i, j;
+       u32 event_mask, desired_event;
+       u8 send_update_to_fw;
+
+       for (i = 0, send_update_to_fw = 0; i <
+           MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
+               event_mask = ~event_type[i];
+               desired_event = 1;
+               for (j = 0; j < 32; j++) {
+                       if (!(event_mask & desired_event) &&
+                           (ioc->event_masks[i] & desired_event)) {
+                               ioc->event_masks[i] &= ~desired_event;
+                               send_update_to_fw = 1;
+                       }
+                       desired_event = (desired_event << 1);
+               }
+       }
+
+       if (!send_update_to_fw)
+               return;
+
+       mutex_lock(&ioc->base_cmds.mutex);
+       _base_event_notification(ioc, 0, CAN_SLEEP);
+       mutex_unlock(&ioc->base_cmds.mutex);
+}
+
+/**
+ * _base_diag_reset - the "big hammer" start of day reset
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
+{
+       u32 host_diagnostic;
+       u32 ioc_state;
+       u32 count;
+       u32 hcb_size;
+
+       printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name);
+
+       base_save_msix_table(ioc);
+
+       drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "clear interrupts\n",
+           ioc->name));
+       writel(0, &ioc->chip->HostInterruptStatus);
+
+       count = 0;
+       do {
+               /* Write magic sequence to WriteSequence register
+                * Loop until in diagnostic mode
+                */
+               drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "write magic "
+                   "sequence\n", ioc->name));
+               writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
+               writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
+
+               /* wait 100 msec */
+               if (sleep_flag == CAN_SLEEP)
+                       msleep(100);
+               else
+                       mdelay(100);
+
+               if (count++ > 20)
+                       goto out;
+
+               host_diagnostic = readl(&ioc->chip->HostDiagnostic);
+               drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "wrote magic "
+                   "sequence: count(%d), host_diagnostic(0x%08x)\n",
+                   ioc->name, count, host_diagnostic));
+
+       } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
+
+       hcb_size = readl(&ioc->chip->HCBSize);
+
+       drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "diag reset: issued\n",
+           ioc->name));
+       writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
+            &ioc->chip->HostDiagnostic);
+
+       /* don't access any registers for 50 milliseconds */
+       msleep(50);
+
+       /* 300 second max wait */
+       for (count = 0; count < 3000000 ; count++) {
+
+               host_diagnostic = readl(&ioc->chip->HostDiagnostic);
+
+               if (host_diagnostic == 0xFFFFFFFF)
+                       goto out;
+               if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
+                       break;
+
+               /* wait 100 msec */
+               if (sleep_flag == CAN_SLEEP)
+                       msleep(1);
+               else
+                       mdelay(1);
+       }
+
+       if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
+
+               drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "restart the adapter "
+                   "assuming the HCB Address points to good F/W\n",
+                   ioc->name));
+               host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
+               host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
+               writel(host_diagnostic, &ioc->chip->HostDiagnostic);
+
+               drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT
+                   "re-enable the HCDW\n", ioc->name));
+               writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
+                   &ioc->chip->HCBSize);
+       }
+
+       drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "restart the adapter\n",
+           ioc->name));
+       writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
+           &ioc->chip->HostDiagnostic);
+
+       drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "disable writes to the "
+           "diagnostic register\n", ioc->name));
+       writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
+
+       drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "Wait for FW to go to the "
+           "READY state\n", ioc->name));
+       ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
+           sleep_flag);
+       if (ioc_state) {
+               printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
+                   " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
+               goto out;
+       }
+
+       base_restore_msix_table(ioc);
+       printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name);
+       return 0;
+
+ out:
+       printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name);
+       return -EFAULT;
+}
+
+/**
+ * _base_make_ioc_ready - put controller in READY state
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ * @type: FORCE_BIG_HAMMER or SOFT_RESET
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
+    enum reset_type type)
+{
+       u32 ioc_state;
+
+       dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+           __func__));
+
+       ioc_state = base_get_iocstate(ioc, 0);
+       dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: ioc_state(0x%08x)\n",
+           ioc->name, __func__, ioc_state));
+
+       if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
+               return 0;
+
+       if (ioc_state & MPI2_DOORBELL_USED) {
+               dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
+                   "active!\n", ioc->name));
+               goto issue_diag_reset;
+       }
+
+       if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+               base_fault_info(ioc, ioc_state & MPI2_DOORBELL_DATA_MASK);
+               goto issue_diag_reset;
+       }
+
+       if (type == FORCE_BIG_HAMMER)
+               goto issue_diag_reset;
+
+#if defined(MUR)
+       if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
+               if (!(_base_send_ioc_reset(ioc,
+                   MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP)))
+                       return 0;
+#endif
+
+ issue_diag_reset:
+       return _base_diag_reset(ioc, CAN_SLEEP);
+}
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drivers/scsi/mpt2sas/mpt2sas_base.h       2009-02-24 14:17:02.000000000 -0700 renamed from drivers/scsi/mpt2sas/mpt2sas_base.h       1969-12-31 17:00:00.000000000 -0700 +7 -0

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