Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/scsi/fcoe/fcoe.c
	net/core/drop_monitor.c
	net/core/net-traces.c

12 files changed, 4602 insertions, 2491 deletions

diff --git a/drivers/message/fusion/lsi/mpi_history.txt b/drivers/message/fusion/lsi/mpi_history.txt
index 693e4b51135..fa9249b4971 100644
--- a/drivers/message/fusion/lsi/mpi_history.txt
+++ b/drivers/message/fusion/lsi/mpi_history.txt
@@ -130,7 +130,7 @@ mpi_ioc.h
  *  08-08-01  01.02.01  Original release for v1.2 work.
  *                      New format for FWVersion and ProductId in
  *                      MSG_IOC_FACTS_REPLY and MPI_FW_HEADER.
- *  08-31-01  01.02.02  Addded event MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE and
+ *  08-31-01  01.02.02  Added event MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE and
  *                      related structure and defines.
  *                      Added event MPI_EVENT_ON_BUS_TIMER_EXPIRED.
  *                      Added MPI_IOCINIT_FLAGS_DISCARD_FW_IMAGE.
@@ -190,7 +190,7 @@ mpi_ioc.h
  *  10-11-06  01.05.12  Added MPI_IOCFACTS_EXCEPT_METADATA_UNSUPPORTED.
  *                      Added MaxInitiators field to PortFacts reply.
  *                      Added SAS Device Status Change ReasonCode for
- *                      asynchronous notificaiton.
+ *                      asynchronous notification.
  *                      Added MPI_EVENT_SAS_EXPANDER_STATUS_CHANGE and event
  *                      data structure.
  *                      Added new ImageType values for FWDownload and FWUpload
@@ -623,7 +623,7 @@ mpi_fc.h
  *  11-02-00  01.01.01  Original release for post 1.0 work
  *  12-04-00  01.01.02  Added messages for Common Transport Send and
  *                      Primitive Send.
- *  01-09-01  01.01.03  Modifed some of the new flags to have an MPI prefix
+ *  01-09-01  01.01.03  Modified some of the new flags to have an MPI prefix
  *                      and modified the FcPrimitiveSend flags.
  *  01-25-01  01.01.04  Move InitiatorIndex in LinkServiceRsp reply to a larger
  *                      field.
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 5d496a99e03..0df065275cd 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -146,7 +146,6 @@ static MPT_EVHANDLER		 MptEvHandlers[MPT_MAX_PROTOCOL_DRIVERS];
 static MPT_RESETHANDLER		 MptResetHandlers[MPT_MAX_PROTOCOL_DRIVERS];
 static struct mpt_pci_driver 	*MptDeviceDriverHandlers[MPT_MAX_PROTOCOL_DRIVERS];
 
-static DECLARE_WAIT_QUEUE_HEAD(mpt_waitq);
 
 /*
  *  Driver Callback Index's
@@ -159,7 +158,8 @@ static u8 last_drv_idx;
  *  Forward protos...
  */
 static irqreturn_t mpt_interrupt(int irq, void *bus_id);
-static int	mpt_base_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
+static int	mptbase_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
+		MPT_FRAME_HDR *reply);
 static int	mpt_handshake_req_reply_wait(MPT_ADAPTER *ioc, int reqBytes,
 			u32 *req, int replyBytes, u16 *u16reply, int maxwait,
 			int sleepFlag);
@@ -190,9 +190,9 @@ static int	mpt_GetScsiPortSettings(MPT_ADAPTER *ioc, int portnum);
 static int	mpt_readScsiDevicePageHeaders(MPT_ADAPTER *ioc, int portnum);
 static void 	mpt_read_ioc_pg_1(MPT_ADAPTER *ioc);
 static void 	mpt_read_ioc_pg_4(MPT_ADAPTER *ioc);
-static void	mpt_timer_expired(unsigned long data);
 static void	mpt_get_manufacturing_pg_0(MPT_ADAPTER *ioc);
-static int	SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch);
+static int	SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch,
+	int sleepFlag);
 static int	SendEventAck(MPT_ADAPTER *ioc, EventNotificationReply_t *evnp);
 static int	mpt_host_page_access_control(MPT_ADAPTER *ioc, u8 access_control_value, int sleepFlag);
 static int	mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init);
@@ -207,8 +207,8 @@ static int	procmpt_iocinfo_read(char *buf, char **start, off_t offset,
 #endif
 static void	mpt_get_fw_exp_ver(char *buf, MPT_ADAPTER *ioc);
 
-//int		mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
-static int	ProcessEventNotification(MPT_ADAPTER *ioc, EventNotificationReply_t *evReply, int *evHandlers);
+static int	ProcessEventNotification(MPT_ADAPTER *ioc,
+		EventNotificationReply_t *evReply, int *evHandlers);
 static void	mpt_iocstatus_info(MPT_ADAPTER *ioc, u32 ioc_status, MPT_FRAME_HDR *mf);
 static void	mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info);
 static void	mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info);
@@ -277,6 +277,56 @@ mpt_get_cb_idx(MPT_DRIVER_CLASS dclass)
 }
 
 /**
+ * mpt_is_discovery_complete - determine if discovery has completed
+ * @ioc: per adatper instance
+ *
+ * Returns 1 when discovery completed, else zero.
+ */
+static int
+mpt_is_discovery_complete(MPT_ADAPTER *ioc)
+{
+	ConfigExtendedPageHeader_t hdr;
+	CONFIGPARMS cfg;
+	SasIOUnitPage0_t *buffer;
+	dma_addr_t dma_handle;
+	int rc = 0;
+
+	memset(&hdr, 0, sizeof(ConfigExtendedPageHeader_t));
+	memset(&cfg, 0, sizeof(CONFIGPARMS));
+	hdr.PageVersion = MPI_SASIOUNITPAGE0_PAGEVERSION;
+	hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
+	hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+	cfg.cfghdr.ehdr = &hdr;
+	cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
+
+	if ((mpt_config(ioc, &cfg)))
+		goto out;
+	if (!hdr.ExtPageLength)
+		goto out;
+
+	buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
+	    &dma_handle);
+	if (!buffer)
+		goto out;
+
+	cfg.physAddr = dma_handle;
+	cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
+
+	if ((mpt_config(ioc, &cfg)))
+		goto out_free_consistent;
+
+	if (!(buffer->PhyData[0].PortFlags &
+	    MPI_SAS_IOUNIT0_PORT_FLAGS_DISCOVERY_IN_PROGRESS))
+		rc = 1;
+
+ out_free_consistent:
+	pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
+	    buffer, dma_handle);
+ out:
+	return rc;
+}
+
+/**
  *	mpt_fault_reset_work - work performed on workq after ioc fault
  *	@work: input argument, used to derive ioc
  *
@@ -290,7 +340,7 @@ mpt_fault_reset_work(struct work_struct *work)
 	int		 rc;
 	unsigned long	 flags;
 
-	if (ioc->diagPending || !ioc->active)
+	if (ioc->ioc_reset_in_progress || !ioc->active)
 		goto out;
 
 	ioc_raw_state = mpt_GetIocState(ioc, 0);
@@ -307,6 +357,12 @@ mpt_fault_reset_work(struct work_struct *work)
 			printk(MYIOC_s_WARN_FMT "IOC is in FAULT state after "
 			    "reset (%04xh)\n", ioc->name, ioc_raw_state &
 			    MPI_DOORBELL_DATA_MASK);
+	} else if (ioc->bus_type == SAS && ioc->sas_discovery_quiesce_io) {
+		if ((mpt_is_discovery_complete(ioc))) {
+			devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "clearing "
+			    "discovery_quiesce_io flag\n", ioc->name));
+			ioc->sas_discovery_quiesce_io = 0;
+		}
 	}
 
  out:
@@ -317,11 +373,11 @@ mpt_fault_reset_work(struct work_struct *work)
 		ioc = ioc->alt_ioc;
 
 	/* rearm the timer */
-	spin_lock_irqsave(&ioc->fault_reset_work_lock, flags);
+	spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
 	if (ioc->reset_work_q)
 		queue_delayed_work(ioc->reset_work_q, &ioc->fault_reset_work,
 			msecs_to_jiffies(MPT_POLLING_INTERVAL));
-	spin_unlock_irqrestore(&ioc->fault_reset_work_lock, flags);
+	spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
 }
 
 
@@ -501,9 +557,9 @@ mpt_interrupt(int irq, void *bus_id)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *	mpt_base_reply - MPT base driver's callback routine
+ *	mptbase_reply - MPT base driver's callback routine
  *	@ioc: Pointer to MPT_ADAPTER structure
- *	@mf: Pointer to original MPT request frame
+ *	@req: Pointer to original MPT request frame
  *	@reply: Pointer to MPT reply frame (NULL if TurboReply)
  *
  *	MPT base driver's callback routine; all base driver
@@ -514,122 +570,49 @@ mpt_interrupt(int irq, void *bus_id)
  *	should be freed, or 0 if it shouldn't.
  */
 static int
-mpt_base_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *reply)
+mptbase_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
 {
+	EventNotificationReply_t *pEventReply;
+	u8 event;
+	int evHandlers;
 	int freereq = 1;
-	u8 func;
 
-	dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mpt_base_reply() called\n", ioc->name));
-#ifdef CONFIG_FUSION_LOGGING
-	if ((ioc->debug_level & MPT_DEBUG_MSG_FRAME) &&
-			!(reply->u.hdr.MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) {
-		dmfprintk(ioc, printk(MYIOC_s_INFO_FMT ": Original request frame (@%p) header\n",
-		    ioc->name, mf));
-		DBG_DUMP_REQUEST_FRAME_HDR(ioc, (u32 *)mf);
-	}
-#endif
-
-	func = reply->u.hdr.Function;
-	dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mpt_base_reply, Function=%02Xh\n",
-			ioc->name, func));
-
-	if (func == MPI_FUNCTION_EVENT_NOTIFICATION) {
-		EventNotificationReply_t *pEvReply = (EventNotificationReply_t *) reply;
-		int evHandlers = 0;
-		int results;
-
-		results = ProcessEventNotification(ioc, pEvReply, &evHandlers);
-		if (results != evHandlers) {
-			/* CHECKME! Any special handling needed here? */
-			devtverboseprintk(ioc, printk(MYIOC_s_WARN_FMT "Called %d event handlers, sum results = %d\n",
-					ioc->name, evHandlers, results));
-		}
-
-		/*
-		 *	Hmmm...  It seems that EventNotificationReply is an exception
-		 *	to the rule of one reply per request.
-		 */
-		if (pEvReply->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) {
+	switch (reply->u.hdr.Function) {
+	case MPI_FUNCTION_EVENT_NOTIFICATION:
+		pEventReply = (EventNotificationReply_t *)reply;
+		evHandlers = 0;
+		ProcessEventNotification(ioc, pEventReply, &evHandlers);
+		event = le32_to_cpu(pEventReply->Event) & 0xFF;
+		if (pEventReply->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)
 			freereq = 0;
-		} else {
-			devtverboseprintk(ioc, printk(MYIOC_s_WARN_FMT "EVENT_NOTIFICATION reply %p returns Request frame\n",
-				ioc->name, pEvReply));
-		}
-
-#ifdef CONFIG_PROC_FS
-//		LogEvent(ioc, pEvReply);
-#endif
-
-	} else if (func == MPI_FUNCTION_EVENT_ACK) {
-		dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mpt_base_reply, EventAck reply received\n",
-				ioc->name));
-	} else if (func == MPI_FUNCTION_CONFIG) {
-		CONFIGPARMS *pCfg;
-		unsigned long flags;
-
-		dcprintk(ioc, printk(MYIOC_s_DEBUG_FMT "config_complete (mf=%p,mr=%p)\n",
-				ioc->name, mf, reply));
-
-		pCfg = * ((CONFIGPARMS **)((u8 *) mf + ioc->req_sz - sizeof(void *)));
-
-		if (pCfg) {
-			/* disable timer and remove from linked list */
-			del_timer(&pCfg->timer);
-
-			spin_lock_irqsave(&ioc->FreeQlock, flags);
-			list_del(&pCfg->linkage);
-			spin_unlock_irqrestore(&ioc->FreeQlock, flags);
-
-			/*
-			 *	If IOC Status is SUCCESS, save the header
-			 *	and set the status code to GOOD.
-			 */
-			pCfg->status = MPT_CONFIG_ERROR;
-			if (reply) {
-				ConfigReply_t	*pReply = (ConfigReply_t *)reply;
-				u16		 status;
-
-				status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
-				dcprintk(ioc, printk(MYIOC_s_NOTE_FMT "  IOCStatus=%04xh, IOCLogInfo=%08xh\n",
-				     ioc->name, status, le32_to_cpu(pReply->IOCLogInfo)));
-
-				pCfg->status = status;
-				if (status == MPI_IOCSTATUS_SUCCESS) {
-					if ((pReply->Header.PageType &
-					    MPI_CONFIG_PAGETYPE_MASK) ==
-					    MPI_CONFIG_PAGETYPE_EXTENDED) {
-						pCfg->cfghdr.ehdr->ExtPageLength =
-						    le16_to_cpu(pReply->ExtPageLength);
-						pCfg->cfghdr.ehdr->ExtPageType =
-						    pReply->ExtPageType;
-					}
-					pCfg->cfghdr.hdr->PageVersion = pReply->Header.PageVersion;
-
-					/* If this is a regular header, save PageLength. */
-					/* LMP Do this better so not using a reserved field! */
-					pCfg->cfghdr.hdr->PageLength = pReply->Header.PageLength;
-					pCfg->cfghdr.hdr->PageNumber = pReply->Header.PageNumber;
-					pCfg->cfghdr.hdr->PageType = pReply->Header.PageType;
-				}
-			}
-
-			/*
-			 *	Wake up the original calling thread
-			 */
-			pCfg->wait_done = 1;
-			wake_up(&mpt_waitq);
+		if (event != MPI_EVENT_EVENT_CHANGE)
+			break;
+	case MPI_FUNCTION_CONFIG:
+	case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
+		ioc->mptbase_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
+		if (reply) {
+			ioc->mptbase_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
+			memcpy(ioc->mptbase_cmds.reply, reply,
+			    min(MPT_DEFAULT_FRAME_SIZE,
+				4 * reply->u.reply.MsgLength));
 		}
-	} else if (func == MPI_FUNCTION_SAS_IO_UNIT_CONTROL) {
-		/* we should be always getting a reply frame */
-		memcpy(ioc->persist_reply_frame, reply,
-		    min(MPT_DEFAULT_FRAME_SIZE,
-		    4*reply->u.reply.MsgLength));
-		del_timer(&ioc->persist_timer);
-		ioc->persist_wait_done = 1;
-		wake_up(&mpt_waitq);
-	} else {
-		printk(MYIOC_s_ERR_FMT "Unexpected msg function (=%02Xh) reply received!\n",
-				ioc->name, func);
+		if (ioc->mptbase_cmds.status & MPT_MGMT_STATUS_PENDING) {
+			ioc->mptbase_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
+			complete(&ioc->mptbase_cmds.done);
+		} else
+			freereq = 0;
+		if (ioc->mptbase_cmds.status & MPT_MGMT_STATUS_FREE_MF)
+			freereq = 1;
+		break;
+	case MPI_FUNCTION_EVENT_ACK:
+		devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+		    "EventAck reply received\n", ioc->name));
+		break;
+	default:
+		printk(MYIOC_s_ERR_FMT
+		    "Unexpected msg function (=%02Xh) reply received!\n",
+		    ioc->name, reply->u.hdr.Function);
+		break;
 	}
 
 	/*
@@ -988,17 +971,21 @@ mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
 
 	/*  Put Request back on FreeQ!  */
 	spin_lock_irqsave(&ioc->FreeQlock, flags);
-	mf->u.frame.linkage.arg1 = 0xdeadbeaf; /* signature to know if this mf is freed */
+	if (cpu_to_le32(mf->u.frame.linkage.arg1) == 0xdeadbeaf)
+		goto out;
+	/* signature to know if this mf is freed */
+	mf->u.frame.linkage.arg1 = cpu_to_le32(0xdeadbeaf);
 	list_add_tail(&mf->u.frame.linkage.list, &ioc->FreeQ);
 #ifdef MFCNT
 	ioc->mfcnt--;
 #endif
+ out:
 	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
- *	mpt_add_sge - Place a simple SGE at address pAddr.
+ *	mpt_add_sge - Place a simple 32 bit SGE at address pAddr.
  *	@pAddr: virtual address for SGE
  *	@flagslength: SGE flags and data transfer length
  *	@dma_addr: Physical address
@@ -1006,23 +993,116 @@ mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
  *	This routine places a MPT request frame back on the MPT adapter's
  *	FreeQ.
  */
-void
-mpt_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
+static void
+mpt_add_sge(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
 {
-	if (sizeof(dma_addr_t) == sizeof(u64)) {
-		SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+	SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
+	pSge->FlagsLength = cpu_to_le32(flagslength);
+	pSge->Address = cpu_to_le32(dma_addr);
+}
+
+/**
+ *	mpt_add_sge_64bit - Place a simple 64 bit SGE at address pAddr.
+ *	@pAddr: virtual address for SGE
+ *	@flagslength: SGE flags and data transfer length
+ *	@dma_addr: Physical address
+ *
+ *	This routine places a MPT request frame back on the MPT adapter's
+ *	FreeQ.
+ **/
+static void
+mpt_add_sge_64bit(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
+{
+	SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+	pSge->Address.Low = cpu_to_le32
+			(lower_32_bits((unsigned long)(dma_addr)));
+	pSge->Address.High = cpu_to_le32
+			(upper_32_bits((unsigned long)dma_addr));
+	pSge->FlagsLength = cpu_to_le32
+			((flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING));
+}
+
+/**
+ *	mpt_add_sge_64bit_1078 - Place a simple 64 bit SGE at address pAddr (1078 workaround).
+ *	@pAddr: virtual address for SGE
+ *	@flagslength: SGE flags and data transfer length
+ *	@dma_addr: Physical address
+ *
+ *	This routine places a MPT request frame back on the MPT adapter's
+ *	FreeQ.
+ **/
+static void
+mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
+{
+	SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+	u32 tmp;
+
+	pSge->Address.Low = cpu_to_le32
+			(lower_32_bits((unsigned long)(dma_addr)));
+	tmp = (u32)(upper_32_bits((unsigned long)dma_addr));
+
+	/*
+	 * 1078 errata workaround for the 36GB limitation
+	 */
+	if ((((u64)dma_addr + MPI_SGE_LENGTH(flagslength)) >> 32)  == 9) {
+		flagslength |=
+		    MPI_SGE_SET_FLAGS(MPI_SGE_FLAGS_LOCAL_ADDRESS);
+		tmp |= (1<<31);
+		if (mpt_debug_level & MPT_DEBUG_36GB_MEM)
+			printk(KERN_DEBUG "1078 P0M2 addressing for "
+			    "addr = 0x%llx len = %d\n",
+			    (unsigned long long)dma_addr,
+			    MPI_SGE_LENGTH(flagslength));
+	}
+
+	pSge->Address.High = cpu_to_le32(tmp);
+	pSge->FlagsLength = cpu_to_le32(
+		(flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING));
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ *	mpt_add_chain - Place a 32 bit chain SGE at address pAddr.
+ *	@pAddr: virtual address for SGE
+ *	@next: nextChainOffset value (u32's)
+ *	@length: length of next SGL segment
+ *	@dma_addr: Physical address
+ *
+ */
+static void
+mpt_add_chain(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
+{
+		SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
+		pChain->Length = cpu_to_le16(length);
+		pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
+		pChain->NextChainOffset = next;
+		pChain->Address = cpu_to_le32(dma_addr);
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ *	mpt_add_chain_64bit - Place a 64 bit chain SGE at address pAddr.
+ *	@pAddr: virtual address for SGE
+ *	@next: nextChainOffset value (u32's)
+ *	@length: length of next SGL segment
+ *	@dma_addr: Physical address
+ *
+ */
+static void
+mpt_add_chain_64bit(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
+{
+		SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
 		u32 tmp = dma_addr & 0xFFFFFFFF;
 
-		pSge->FlagsLength = cpu_to_le32(flagslength);
-		pSge->Address.Low = cpu_to_le32(tmp);
-		tmp = (u32) ((u64)dma_addr >> 32);
-		pSge->Address.High = cpu_to_le32(tmp);
+		pChain->Length = cpu_to_le16(length);
+		pChain->Flags = (MPI_SGE_FLAGS_CHAIN_ELEMENT |
+				 MPI_SGE_FLAGS_64_BIT_ADDRESSING);
 
-	} else {
-		SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
-		pSge->FlagsLength = cpu_to_le32(flagslength);
-		pSge->Address = cpu_to_le32(dma_addr);
-	}
+		pChain->NextChainOffset = next;
+
+		pChain->Address.Low = cpu_to_le32(tmp);
+		tmp = (u32)(upper_32_bits((unsigned long)dma_addr));
+		pChain->Address.High = cpu_to_le32(tmp);
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
@@ -1225,7 +1305,7 @@ mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init)
 	}
 	flags_length = flags_length << MPI_SGE_FLAGS_SHIFT;
 	flags_length |= ioc->HostPageBuffer_sz;
-	mpt_add_sge(psge, flags_length, ioc->HostPageBuffer_dma);
+	ioc->add_sge(psge, flags_length, ioc->HostPageBuffer_dma);
 	ioc->facts.HostPageBufferSGE = ioc_init->HostPageBufferSGE;
 
 return 0;
@@ -1534,21 +1614,42 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 
 	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
 
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
-	    && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
-		    ": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
-		    ioc->name));
-	} else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
-	    && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
-		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
-		    ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
-		    ioc->name));
+	if (sizeof(dma_addr_t) > 4) {
+		const uint64_t required_mask = dma_get_required_mask
+		    (&pdev->dev);
+		if (required_mask > DMA_BIT_MASK(32)
+			&& !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+			&& !pci_set_consistent_dma_mask(pdev,
+						 DMA_BIT_MASK(64))) {
+			ioc->dma_mask = DMA_BIT_MASK(64);
+			dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+				": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+				ioc->name));
+		} else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+			&& !pci_set_consistent_dma_mask(pdev,
+						DMA_BIT_MASK(32))) {
+			ioc->dma_mask = DMA_BIT_MASK(32);
+			dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+				": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+				ioc->name));
+		} else {
+			printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
+			    ioc->name, pci_name(pdev));
+			return r;
+		}
 	} else {
-		printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
-		    ioc->name, pci_name(pdev));
-		pci_release_selected_regions(pdev, ioc->bars);
-		return r;
+		if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+			&& !pci_set_consistent_dma_mask(pdev,
+						DMA_BIT_MASK(32))) {
+			ioc->dma_mask = DMA_BIT_MASK(32);
+			dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+				": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+				ioc->name));
+		} else {
+			printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
+			    ioc->name, pci_name(pdev));
+			return r;
+		}
 	}
 
 	mem_phys = msize = 0;
@@ -1632,6 +1733,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	ioc->id = mpt_ids++;
 	sprintf(ioc->name, "ioc%d", ioc->id);
+	dinitprintk(ioc, printk(KERN_WARNING MYNAM ": mpt_adapter_install\n"));
 
 	/*
 	 * set initial debug level
@@ -1650,14 +1752,36 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 		return r;
 	}
 
+	/*
+	 * Setting up proper handlers for scatter gather handling
+	 */
+	if (ioc->dma_mask == DMA_BIT_MASK(64)) {
+		if (pdev->device == MPI_MANUFACTPAGE_DEVID_SAS1078)
+			ioc->add_sge = &mpt_add_sge_64bit_1078;
+		else
+			ioc->add_sge = &mpt_add_sge_64bit;
+		ioc->add_chain = &mpt_add_chain_64bit;
+		ioc->sg_addr_size = 8;
+	} else {
+		ioc->add_sge = &mpt_add_sge;
+		ioc->add_chain = &mpt_add_chain;
+		ioc->sg_addr_size = 4;
+	}
+	ioc->SGE_size = sizeof(u32) + ioc->sg_addr_size;
+
 	ioc->alloc_total = sizeof(MPT_ADAPTER);
 	ioc->req_sz = MPT_DEFAULT_FRAME_SIZE;		/* avoid div by zero! */
 	ioc->reply_sz = MPT_REPLY_FRAME_SIZE;
 
 	ioc->pcidev = pdev;
-	ioc->diagPending = 0;
-	spin_lock_init(&ioc->diagLock);
-	spin_lock_init(&ioc->initializing_hba_lock);
+
+	spin_lock_init(&ioc->taskmgmt_lock);
+	mutex_init(&ioc->internal_cmds.mutex);
+	init_completion(&ioc->internal_cmds.done);
+	mutex_init(&ioc->mptbase_cmds.mutex);
+	init_completion(&ioc->mptbase_cmds.done);
+	mutex_init(&ioc->taskmgmt_cmds.mutex);
+	init_completion(&ioc->taskmgmt_cmds.done);
 
 	/* Initialize the event logging.
 	 */
@@ -1670,16 +1794,13 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	ioc->mfcnt = 0;
 #endif
 
+	ioc->sh = NULL;
 	ioc->cached_fw = NULL;
 
 	/* Initilize SCSI Config Data structure
 	 */
 	memset(&ioc->spi_data, 0, sizeof(SpiCfgData));
 
-	/* Initialize the running configQ head.
-	 */
-	INIT_LIST_HEAD(&ioc->configQ);
-
 	/* Initialize the fc rport list head.
 	 */
 	INIT_LIST_HEAD(&ioc->fc_rports);
@@ -1690,9 +1811,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	/* Initialize workqueue */
 	INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work);
-	spin_lock_init(&ioc->fault_reset_work_lock);
 
-	snprintf(ioc->reset_work_q_name, sizeof(ioc->reset_work_q_name),
+	snprintf(ioc->reset_work_q_name, MPT_KOBJ_NAME_LEN,
 		 "mpt_poll_%d", ioc->id);
 	ioc->reset_work_q =
 		create_singlethread_workqueue(ioc->reset_work_q_name);
@@ -1767,11 +1887,14 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	case MPI_MANUFACTPAGE_DEVID_SAS1064:
 	case MPI_MANUFACTPAGE_DEVID_SAS1068:
 		ioc->errata_flag_1064 = 1;
+		ioc->bus_type = SAS;
+		break;
 
 	case MPI_MANUFACTPAGE_DEVID_SAS1064E:
 	case MPI_MANUFACTPAGE_DEVID_SAS1068E:
 	case MPI_MANUFACTPAGE_DEVID_SAS1078:
 		ioc->bus_type = SAS;
+		break;
 	}
 
 
@@ -1813,6 +1936,11 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	 */
 	mpt_detect_bound_ports(ioc, pdev);
 
+	INIT_LIST_HEAD(&ioc->fw_event_list);
+	spin_lock_init(&ioc->fw_event_lock);
+	snprintf(ioc->fw_event_q_name, MPT_KOBJ_NAME_LEN, "mpt/%d", ioc->id);
+	ioc->fw_event_q = create_singlethread_workqueue(ioc->fw_event_q_name);
+
 	if ((r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
 	    CAN_SLEEP)) != 0){
 		printk(MYIOC_s_ERR_FMT "didn't initialize properly! (%d)\n",
@@ -1885,13 +2013,18 @@ mpt_detach(struct pci_dev *pdev)
 	/*
 	 * Stop polling ioc for fault condition
 	 */
-	spin_lock_irqsave(&ioc->fault_reset_work_lock, flags);
+	spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
 	wq = ioc->reset_work_q;
 	ioc->reset_work_q = NULL;
-	spin_unlock_irqrestore(&ioc->fault_reset_work_lock, flags);
+	spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
 	cancel_delayed_work(&ioc->fault_reset_work);
 	destroy_workqueue(wq);
 
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	wq = ioc->fw_event_q;
+	ioc->fw_event_q = NULL;
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+	destroy_workqueue(wq);
 
 	sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name);
 	remove_proc_entry(pname, NULL);
@@ -1994,6 +2127,21 @@ mpt_resume(struct pci_dev *pdev)
 	if (err)
 		return err;
 
+	if (ioc->dma_mask == DMA_BIT_MASK(64)) {
+		if (pdev->device == MPI_MANUFACTPAGE_DEVID_SAS1078)
+			ioc->add_sge = &mpt_add_sge_64bit_1078;
+		else
+			ioc->add_sge = &mpt_add_sge_64bit;
+		ioc->add_chain = &mpt_add_chain_64bit;
+		ioc->sg_addr_size = 8;
+	} else {
+
+		ioc->add_sge = &mpt_add_sge;
+		ioc->add_chain = &mpt_add_chain;
+		ioc->sg_addr_size = 4;
+	}
+	ioc->SGE_size = sizeof(u32) + ioc->sg_addr_size;
+
 	printk(MYIOC_s_INFO_FMT "pci-resume: ioc-state=0x%x,doorbell=0x%x\n",
 	    ioc->name, (mpt_GetIocState(ioc, 1) >> MPI_IOC_STATE_SHIFT),
 	    CHIPREG_READ32(&ioc->chip->Doorbell));
@@ -2091,12 +2239,16 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 	ioc->active = 0;
 
 	if (ioc->alt_ioc) {
-		if (ioc->alt_ioc->active)
+		if (ioc->alt_ioc->active ||
+		    reason == MPT_HOSTEVENT_IOC_RECOVER) {
 			reset_alt_ioc_active = 1;
-
-		/* Disable alt-IOC's reply interrupts (and FreeQ) for a bit ... */
-		CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, 0xFFFFFFFF);
-		ioc->alt_ioc->active = 0;
+			/* Disable alt-IOC's reply interrupts
+			 *  (and FreeQ) for a bit
+			 **/
+			CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask,
+				0xFFFFFFFF);
+			ioc->alt_ioc->active = 0;
+		}
 	}
 
 	hard = 1;
@@ -2117,9 +2269,11 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 			}
 
 		} else {
-			printk(MYIOC_s_WARN_FMT "NOT READY!\n", ioc->name);
+			printk(MYIOC_s_WARN_FMT
+			    "NOT READY WARNING!\n", ioc->name);
 		}
-		return -1;
+		ret = -1;
+		goto out;
 	}
 
 	/* hard_reset_done = 0 if a soft reset was performed
@@ -2129,7 +2283,9 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 		if ((rc = MakeIocReady(ioc->alt_ioc, 0, sleepFlag)) == 0)
 			alt_ioc_ready = 1;
 		else
-			printk(MYIOC_s_WARN_FMT "alt_ioc not ready!\n", ioc->alt_ioc->name);
+			printk(MYIOC_s_WARN_FMT
+			    ": alt-ioc Not ready WARNING!\n",
+			    ioc->alt_ioc->name);
 	}
 
 	for (ii=0; ii<5; ii++) {
@@ -2150,7 +2306,8 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 	if (alt_ioc_ready) {
 		if ((rc = GetIocFacts(ioc->alt_ioc, sleepFlag, reason)) != 0) {
 			dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT
-			    "Initial Alt IocFacts failed rc=%x\n", ioc->name, rc));
+			    "Initial Alt IocFacts failed rc=%x\n",
+			    ioc->name, rc));
 			/* Retry - alt IOC was initialized once
 			 */
 			rc = GetIocFacts(ioc->alt_ioc, sleepFlag, reason);
@@ -2194,16 +2351,20 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 			    IRQF_SHARED, ioc->name, ioc);
 			if (rc < 0) {
 				printk(MYIOC_s_ERR_FMT "Unable to allocate "
-				    "interrupt %d!\n", ioc->name, ioc->pcidev->irq);
+				    "interrupt %d!\n",
+				    ioc->name, ioc->pcidev->irq);
 				if (ioc->msi_enable)
 					pci_disable_msi(ioc->pcidev);
-				return -EBUSY;
+				ret = -EBUSY;
+				goto out;
 			}
 			irq_allocated = 1;
 			ioc->pci_irq = ioc->pcidev->irq;
 			pci_set_master(ioc->pcidev);		/* ?? */
-			dprintk(ioc, printk(MYIOC_s_INFO_FMT "installed at interrupt "
-			    "%d\n", ioc->name, ioc->pcidev->irq));
+			pci_set_drvdata(ioc->pcidev, ioc);
+			dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+			    "installed at interrupt %d\n", ioc->name,
+			    ioc->pcidev->irq));
 		}
 	}
 
@@ -2212,17 +2373,22 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 	 * init as upper addresses are needed for init.
 	 * If fails, continue with alt-ioc processing
 	 */
+	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "PrimeIocFifos\n",
+	    ioc->name));
 	if ((ret == 0) && ((rc = PrimeIocFifos(ioc)) != 0))
 		ret = -3;
 
 	/* May need to check/upload firmware & data here!
 	 * If fails, continue with alt-ioc processing
 	 */
+	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "SendIocInit\n",
+	    ioc->name));
 	if ((ret == 0) && ((rc = SendIocInit(ioc, sleepFlag)) != 0))
 		ret = -4;
 // NEW!
 	if (alt_ioc_ready && ((rc = PrimeIocFifos(ioc->alt_ioc)) != 0)) {
-		printk(MYIOC_s_WARN_FMT ": alt_ioc (%d) FIFO mgmt alloc!\n",
+		printk(MYIOC_s_WARN_FMT
+		    ": alt-ioc (%d) FIFO mgmt alloc WARNING!\n",
 		    ioc->alt_ioc->name, rc);
 		alt_ioc_ready = 0;
 		reset_alt_ioc_active = 0;
@@ -2232,8 +2398,9 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 		if ((rc = SendIocInit(ioc->alt_ioc, sleepFlag)) != 0) {
 			alt_ioc_ready = 0;
 			reset_alt_ioc_active = 0;
-			printk(MYIOC_s_WARN_FMT "alt_ioc (%d) init failure!\n",
-			    ioc->alt_ioc->name, rc);
+			printk(MYIOC_s_WARN_FMT
+				": alt-ioc: (%d) init failure WARNING!\n",
+					ioc->alt_ioc->name, rc);
 		}
 	}
 
@@ -2269,28 +2436,36 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 		}
 	}
 
+	/*  Enable MPT base driver management of EventNotification
+	 *  and EventAck handling.
+	 */
+	if ((ret == 0) && (!ioc->facts.EventState)) {
+		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+			"SendEventNotification\n",
+		    ioc->name));
+		ret = SendEventNotification(ioc, 1, sleepFlag);	/* 1=Enable */
+	}
+
+	if (ioc->alt_ioc && alt_ioc_ready && !ioc->alt_ioc->facts.EventState)
+		rc = SendEventNotification(ioc->alt_ioc, 1, sleepFlag);
+
 	if (ret == 0) {
 		/* Enable! (reply interrupt) */
 		CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);
 		ioc->active = 1;
 	}
-
-	if (reset_alt_ioc_active && ioc->alt_ioc) {
-		/* (re)Enable alt-IOC! (reply interrupt) */
-		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "alt_ioc reply irq re-enabled\n",
-		    ioc->alt_ioc->name));
-		CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, MPI_HIM_DIM);
-		ioc->alt_ioc->active = 1;
+	if (rc == 0) {	/* alt ioc */
+		if (reset_alt_ioc_active && ioc->alt_ioc) {
+			/* (re)Enable alt-IOC! (reply interrupt) */
+			dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "alt-ioc"
+				"reply irq re-enabled\n",
+				ioc->alt_ioc->name));
+			CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask,
+				MPI_HIM_DIM);
+			ioc->alt_ioc->active = 1;
+		}
 	}
 
-	/*  Enable MPT base driver management of EventNotification
-	 *  and EventAck handling.
-	 */
-	if ((ret == 0) && (!ioc->facts.EventState))
-		(void) SendEventNotification(ioc, 1);	/* 1=Enable EventNotification */
-
-	if (ioc->alt_ioc && alt_ioc_ready && !ioc->alt_ioc->facts.EventState)
-		(void) SendEventNotification(ioc->alt_ioc, 1);	/* 1=Enable EventNotification */
 
 	/*	Add additional "reason" check before call to GetLanConfigPages
 	 *	(combined with GetIoUnitPage2 call).  This prevents a somewhat
@@ -2306,8 +2481,9 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 		mutex_init(&ioc->raid_data.inactive_list_mutex);
 		INIT_LIST_HEAD(&ioc->raid_data.inactive_list);
 
-		if (ioc->bus_type == SAS) {
+		switch (ioc->bus_type) {
 
+		case SAS:
 			/* clear persistency table */
 			if(ioc->facts.IOCExceptions &
 			    MPI_IOCFACTS_EXCEPT_PERSISTENT_TABLE_FULL) {
@@ -2321,8 +2497,15 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 			 */
 			mpt_findImVolumes(ioc);
 
-		} else if (ioc->bus_type == FC) {
-			if ((ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_LAN) &&
+			/* Check, and possibly reset, the coalescing value
+			 */
+			mpt_read_ioc_pg_1(ioc);
+
+			break;
+
+		case FC:
+			if ((ioc->pfacts[0].ProtocolFlags &
+				MPI_PORTFACTS_PROTOCOL_LAN) &&
 			    (ioc->lan_cnfg_page0.Header.PageLength == 0)) {
 				/*
 				 *  Pre-fetch the ports LAN MAC address!<