Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (73 commits)
[SCSI] aic79xx: Add ASC-29320LPE ids to driver
[SCSI] stex: version update
[SCSI] stex: change wait loop code
[SCSI] stex: add new device type support
[SCSI] stex: update device id info
[SCSI] stex: adjust default queue length
[SCSI] stex: add value check in hard reset routine
[SCSI] stex: fix controller_info command handling
[SCSI] stex: fix biosparam calculation
[SCSI] megaraid: fix MMIO casts
[SCSI] tgt: fix undefined flush_dcache_page() problem
[SCSI] libsas: better error handling in sas_expander.c
[SCSI] lpfc 8.1.11 : Change version number to 8.1.11
[SCSI] lpfc 8.1.11 : Misc Fixes
[SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable
[SCSI] lpfc 8.1.11 : Removed decoding of PCI Subsystem Id
[SCSI] lpfc 8.1.11 : Add MSI (Message Signalled Interrupts) support
[SCSI] lpfc 8.1.11 : Adjust LOG_FCP logging
[SCSI] lpfc 8.1.11 : Fix Memory leaks
[SCSI] lpfc 8.1.11 : Fix lpfc_multi_ring_support
...

Documentation/kernel-parameters.txt

···
 
 	scsi_logging=	[SCSI]
 
+	scsi_mod.scan=	[SCSI] sync (default) scans SCSI busses as they are
+			discovered.  async scans them in kernel threads,
+			allowing boot to proceed.  none ignores them, expecting
+			user space to do the scan.
+
 	selinux		[SELINUX] Disable or enable SELinux at boot time.
 			Format: { "0" | "1" }
 			See security/selinux/Kconfig help text.

Documentation/scsi/scsi_mid_low_api.txt

···
    scsi_add_device - creates new scsi device (lu) instance
    scsi_add_host - perform sysfs registration and set up transport class
    scsi_adjust_queue_depth - change the queue depth on a SCSI device
-   scsi_assign_lock - replace default host_lock with given lock
    scsi_bios_ptable - return copy of block device's partition table
    scsi_block_requests - prevent further commands being queued to given host
    scsi_deactivate_tcq - turn off tag command queueing
···
  **/
 void scsi_adjust_queue_depth(struct scsi_device * sdev, int tagged, 
                              int tags)
-
-
-/**
- * scsi_assign_lock - replace default host_lock with given lock
- * @shost: a pointer to a scsi host instance
- * @lock: pointer to lock to replace host_lock for this host
- *
- *      Returns nothing
- *
- *      Might block: no
- *
- *      Defined in: include/scsi/scsi_host.h .
- **/
-void scsi_assign_lock(struct Scsi_Host *shost, spinlock_t *lock)
 
 
 /**
···
 Each struct Scsi_Host instance has a spin_lock called struct 
 Scsi_Host::default_lock which is initialized in scsi_host_alloc() [found in 
 hosts.c]. Within the same function the struct Scsi_Host::host_lock pointer
-is initialized to point at default_lock with the scsi_assign_lock() function.
-Thereafter lock and unlock operations performed by the mid level use the
-struct Scsi_Host::host_lock pointer.
+is initialized to point at default_lock.  Thereafter lock and unlock
+operations performed by the mid level use the struct Scsi_Host::host_lock
+pointer.  Previously drivers could override the host_lock pointer but
+this is not allowed anymore.
 
-LLDs can override the use of struct Scsi_Host::default_lock by
-using scsi_assign_lock(). The earliest opportunity to do this would
-be in the detect() function after it has invoked scsi_register(). It
-could be replaced by a coarser grain lock (e.g. per driver) or a
-lock of equal granularity (i.e. per host). Using finer grain locks 
-(e.g. per SCSI device) may be possible by juggling locks in
-queuecommand().
 
 Autosense
 =========

block/scsi_ioctl.c

···
 	if (rq->bio)
 		blk_queue_bounce(q, &rq->bio);
 
-	rq->timeout = (hdr->timeout * HZ) / 1000;
+	rq->timeout = jiffies_to_msecs(hdr->timeout);
 	if (!rq->timeout)
 		rq->timeout = q->sg_timeout;
 	if (!rq->timeout)

drivers/scsi/53c700.c

···
 			dma_unmap_single(hostdata->dev, slot->dma_handle, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
 			/* restore the old result if the request sense was
 			 * successful */
-			if(result == 0)
+			if (result == 0)
 				result = cmnd[7];
+			/* restore the original length */
+			SCp->cmd_len = cmnd[8];
 		} else
 			NCR_700_unmap(hostdata, SCp, slot);
 
···
 				 * of the command */
 				cmnd[6] = NCR_700_INTERNAL_SENSE_MAGIC;
 				cmnd[7] = hostdata->status[0];
+				cmnd[8] = SCp->cmd_len;
+				SCp->cmd_len = 6; /* command length for
+						   * REQUEST_SENSE */
 				slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE);
 				slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
 				slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | sizeof(SCp->sense_buffer));

drivers/scsi/BusLogic.c

···
 
 	if (BusLogic_ProbeOptions.NoProbe)
 		return -ENODEV;
-	BusLogic_ProbeInfoList = (struct BusLogic_ProbeInfo *)
-	    kmalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_ATOMIC);
+	BusLogic_ProbeInfoList =
+	    kzalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_KERNEL);
 	if (BusLogic_ProbeInfoList == NULL) {
 		BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL);
 		return -ENOMEM;
 	}
-	memset(BusLogic_ProbeInfoList, 0, BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo));
-	PrototypeHostAdapter = (struct BusLogic_HostAdapter *)
-	    kmalloc(sizeof(struct BusLogic_HostAdapter), GFP_ATOMIC);
+
+	PrototypeHostAdapter =
+	    kzalloc(sizeof(struct BusLogic_HostAdapter), GFP_KERNEL);
 	if (PrototypeHostAdapter == NULL) {
 		kfree(BusLogic_ProbeInfoList);
 		BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL);
 		return -ENOMEM;
 	}
-	memset(PrototypeHostAdapter, 0, sizeof(struct BusLogic_HostAdapter));
+
 #ifdef MODULE
 	if (BusLogic != NULL)
 		BusLogic_Setup(BusLogic);

drivers/scsi/Kconfig

···
 	  However, do not compile this as a module if your root file system
 	  (the one containing the directory /) is located on a SCSI device.
 
+config SCSI_TGT
+	tristate "SCSI target support"
+	depends on SCSI && EXPERIMENTAL
+	---help---
+	  If you want to use SCSI target mode drivers enable this option.
+	  If you choose M, the module will be called scsi_tgt.
+
 config SCSI_NETLINK
 	bool
 	default	n
···
 	  problems. If you say Y here your kernel will be somewhat larger, but
 	  there should be no noticeable performance impact as long as you have
 	  logging turned off.
+
+config SCSI_SCAN_ASYNC
+	bool "Asynchronous SCSI scanning"
+	depends on SCSI
+	help
+	  The SCSI subsystem can probe for devices while the rest of the
+	  system continues booting, and even probe devices on different
+	  busses in parallel, leading to a significant speed-up.
+	  If you have built SCSI as modules, enabling this option can
+	  be a problem as the devices may not have been found by the
+	  time your system expects them to have been.  You can load the
+	  scsi_wait_scan module to ensure that all scans have completed.
+	  If you build your SCSI drivers into the kernel, then everything
+	  will work fine if you say Y here.
+
+	  You can override this choice by specifying scsi_mod.scan="sync"
+	  or "async" on the kernel's command line.
 
 menu "SCSI Transports"
 	depends on SCSI
···
 	  To compile this driver as a module, choose M here: the
 	  module will be called ibmvscsic.
 
+config SCSI_IBMVSCSIS
+	tristate "IBM Virtual SCSI Server support"
+	depends on PPC_PSERIES && SCSI_TGT && SCSI_SRP
+	help
+	  This is the SRP target driver for IBM pSeries virtual environments.
+
+	  The userspace component needed to initialize the driver and
+	  documentation can be found:
+
+	  http://stgt.berlios.de/
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ibmvstgt.
+
 config SCSI_INITIO
 	tristate "Initio 9100U(W) support"
 	depends on PCI && SCSI
···
 	tristate "Promise SuperTrak EX Series support"
 	depends on PCI && SCSI
 	---help---
-	  This driver supports Promise SuperTrak EX8350/8300/16350/16300
-	  Storage controllers.
+	  This driver supports Promise SuperTrak EX series storage controllers.
+
+	  Promise provides Linux RAID configuration utility for these
+	  controllers. Please visit <http://www.promise.com> to download.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called stex.
 
 config SCSI_SYM53C8XX_2
 	tristate "SYM53C8XX Version 2 SCSI support"
···
 config SCSI_IPR_TRACE
 	bool "enable driver internal trace"
 	depends on SCSI_IPR
+	default y
 	help
 	  If you say Y here, the driver will trace all commands issued
 	  to the adapter. Performance impact is minimal. Trace can be
···
 config SCSI_IPR_DUMP
 	bool "enable adapter dump support"
 	depends on SCSI_IPR
+	default y
 	help
 	  If you say Y here, the driver will support adapter crash dump.
 	  If you enable this support, the iprdump daemon can be used
···
           This driver is also available as a module. This module will be
           called zfcp. If you want to compile it as a module, say M here
           and read <file:Documentation/modules.txt>.
+
+config SCSI_SRP
+	tristate "SCSI RDMA Protocol helper library"
+	depends on SCSI && PCI
+	select SCSI_TGT
+	help
+	  If you wish to use SRP target drivers, say Y.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called libsrp.
 
 endmenu
 

drivers/scsi/Makefile

···
 subdir-$(CONFIG_PCMCIA)		+= pcmcia
 
 obj-$(CONFIG_SCSI)		+= scsi_mod.o
+obj-$(CONFIG_SCSI_TGT)		+= scsi_tgt.o
 
 obj-$(CONFIG_RAID_ATTRS)	+= raid_class.o
 
···
 obj-$(CONFIG_SCSI_LASI700)	+= 53c700.o lasi700.o
 obj-$(CONFIG_SCSI_NSP32)	+= nsp32.o
 obj-$(CONFIG_SCSI_IPR)		+= ipr.o
+obj-$(CONFIG_SCSI_SRP)		+= libsrp.o
 obj-$(CONFIG_SCSI_IBMVSCSI)	+= ibmvscsi/
+obj-$(CONFIG_SCSI_IBMVSCSIS)	+= ibmvscsi/
 obj-$(CONFIG_SCSI_HPTIOP)	+= hptiop.o
 obj-$(CONFIG_SCSI_STEX)		+= stex.o
 
···
 # This goes last, so that "real" scsi devices probe earlier
 obj-$(CONFIG_SCSI_DEBUG)	+= scsi_debug.o
 
+obj-$(CONFIG_SCSI)		+= scsi_wait_scan.o
+
 scsi_mod-y			+= scsi.o hosts.o scsi_ioctl.o constants.o \
 				   scsicam.o scsi_error.o scsi_lib.o \
 				   scsi_scan.o scsi_sysfs.o \
···
 scsi_mod-$(CONFIG_SCSI_NETLINK)	+= scsi_netlink.o
 scsi_mod-$(CONFIG_SYSCTL)	+= scsi_sysctl.o
 scsi_mod-$(CONFIG_SCSI_PROC_FS)	+= scsi_proc.o
+
+scsi_tgt-y			+= scsi_tgt_lib.o scsi_tgt_if.o
 
 sd_mod-objs	:= sd.o
 sr_mod-objs	:= sr.o sr_ioctl.o sr_vendor.o

drivers/scsi/NCR53c406a.c

···
 static unsigned short ports[] = { 0x230, 0x330, 0x280, 0x290, 0x330, 0x340, 0x300, 0x310, 0x348, 0x350 };
 #define PORT_COUNT ARRAY_SIZE(ports)
 
+#ifndef MODULE
 /* possible interrupt channels */
 static unsigned short intrs[] = { 10, 11, 12, 15 };
 #define INTR_COUNT ARRAY_SIZE(intrs)
+#endif /* !MODULE */
 
 /* signatures for NCR 53c406a based controllers */
 #if USE_BIOS
···
 	return 0;
 }
 
+#ifndef MODULE
 /* called from init/main.c */
 static int __init NCR53c406a_setup(char *str)
 {
···
 }
 
 __setup("ncr53c406a=", NCR53c406a_setup);
+
+#endif /* !MODULE */
 
 static const char *NCR53c406a_info(struct Scsi_Host *SChost)
 {

drivers/scsi/aacraid/aacraid.h

···
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 2409
-# define AAC_DRIVER_BRANCH "-mh2"
+# define AAC_DRIVER_BUILD 2423
+# define AAC_DRIVER_BRANCH "-mh3"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
 

drivers/scsi/aacraid/commsup.c

···
 			 */
 			unsigned long count = 36000000L; /* 3 minutes */
 			while (down_trylock(&fibptr->event_wait)) {
+				int blink;
 				if (--count == 0) {
 					spin_lock_irqsave(q->lock, qflags);
 					q->numpending--;
···
 						  "the SAFE mode kernel options (acpi, apic etc)\n");
 					}
 					return -ETIMEDOUT;
+				}
+				if ((blink = aac_adapter_check_health(dev)) > 0) {
+					if (wait == -1) {
+	        				printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n"
+						  "Usually a result of a serious unrecoverable hardware problem\n",
+						  blink);
+					}
+					return -EFAULT;
 				}
 				udelay(5);
 			}
···
 		goto out;
 	}
 
+	/*
+	 *	Loop through the fibs, close the synchronous FIBS
+	 */
+	for (index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) {
+		struct fib *fib = &aac->fibs[index];
+		if (!(fib->hw_fib->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
+		  (fib->hw_fib->header.XferState & cpu_to_le32(ResponseExpected))) {
+			unsigned long flagv;
+			spin_lock_irqsave(&fib->event_lock, flagv);
+			up(&fib->event_wait);
+			spin_unlock_irqrestore(&fib->event_lock, flagv);
+			schedule();
+		}
+	}
 	index = aac->cardtype;
 
 	/*

drivers/scsi/aha1740.c

···
 
 static int aha1740_probe (struct device *dev)
 {
-	int slotbase;
+	int slotbase, rc;
 	unsigned int irq_level, irq_type, translation;
 	struct Scsi_Host *shpnt;
 	struct aha1740_hostdata *host;
···
 	}
 
 	eisa_set_drvdata (edev, shpnt);
-	scsi_add_host (shpnt, dev); /* XXX handle failure */
+
+	rc = scsi_add_host (shpnt, dev);
+	if (rc)
+		goto err_irq;
+
 	scsi_scan_host (shpnt);
 	return 0;
 
+ err_irq:
+ 	free_irq(irq_level, shpnt);
  err_unmap:
 	dma_unmap_single (&edev->dev, host->ecb_dma_addr,
 			  sizeof (host->ecb), DMA_BIDIRECTIONAL);

drivers/scsi/aic7xxx/aic79xx_osm_pci.c

···
 	/* aic7901 based controllers */
 	ID(ID_AHA_29320A),
 	ID(ID_AHA_29320ALP),
+	ID(ID_AHA_29320LPE),
 	/* aic7902 based controllers */
 	ID(ID_AHA_29320),
 	ID(ID_AHA_29320B),

drivers/scsi/aic7xxx/aic79xx_pci.c

···
 	{
 		ID_AHA_29320ALP,
 		ID_ALL_MASK,
-		"Adaptec 29320ALP Ultra320 SCSI adapter",
+		"Adaptec 29320ALP PCIx Ultra320 SCSI adapter",
+		ahd_aic7901_setup
+	},
+	{
+		ID_AHA_29320LPE,
+		ID_ALL_MASK,
+		"Adaptec 29320LPE PCIe Ultra320 SCSI adapter",
 		ahd_aic7901_setup
 	},
 	/* aic7901A based controllers */

drivers/scsi/aic7xxx/aic79xx_pci.h

···
 #define ID_AIC7901			0x800F9005FFFF9005ull
 #define ID_AHA_29320A			0x8000900500609005ull
 #define ID_AHA_29320ALP			0x8017900500449005ull
+#define ID_AHA_29320LPE			0x8017900500459005ull
 
 #define ID_AIC7901A			0x801E9005FFFF9005ull
 #define ID_AHA_29320LP			0x8014900500449005ull

drivers/scsi/aic94xx/aic94xx_init.c

···
 
 	list_for_each_safe(pos, n, &pending) {
 		struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
+		/*
+		 * Delete unexpired ascb timers.  This may happen if we issue
+		 * a CONTROL PHY scb to an adapter and rmmod before the scb
+		 * times out.  Apparently we don't wait for the CONTROL PHY
+		 * to complete, so it doesn't matter if we kill the timer.
+		 */
+		del_timer_sync(&ascb->timer);
+		WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
+
 		list_del_init(pos);
 		ASD_DPRINTK("freeing from pending\n");
 		asd_ascb_free(ascb);

drivers/scsi/aic94xx/aic94xx_scb.c

···
  */
 
 #include <linux/pci.h>
+#include <scsi/scsi_host.h>
 
 #include "aic94xx.h"
 #include "aic94xx_reg.h"
···
 	}
 }
 
+/* hard reset a phy later */
+static void do_phy_reset_later(void *data)
+{
+	struct sas_phy *sas_phy = data;
+	int error;
+
+	ASD_DPRINTK("%s: About to hard reset phy %d\n", __FUNCTION__,
+		    sas_phy->identify.phy_identifier);
+	/* Reset device port */
+	error = sas_phy_reset(sas_phy, 1);
+	if (error)
+		ASD_DPRINTK("%s: Hard reset of phy %d failed (%d).\n",
+			    __FUNCTION__, sas_phy->identify.phy_identifier, error);
+}
+
+static void phy_reset_later(struct sas_phy *sas_phy, struct Scsi_Host *shost)
+{
+	INIT_WORK(&sas_phy->reset_work, do_phy_reset_later, sas_phy);
+	queue_work(shost->work_q, &sas_phy->reset_work);
+}
+
+/* start up the ABORT TASK tmf... */
+static void task_kill_later(struct asd_ascb *ascb)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
+	struct Scsi_Host *shost = sas_ha->core.shost;
+	struct sas_task *task = ascb->uldd_task;
+
+	INIT_WORK(&task->abort_work, (void (*)(void *))sas_task_abort, task);
+	queue_work(shost->work_q, &task->abort_work);
+}
+
 static void escb_tasklet_complete(struct asd_ascb *ascb,
 				  struct done_list_struct *dl)
 {
···
 			    le64_to_cpu(ascb->scb->header.next_scb),
 			    le16_to_cpu(ascb->scb->header.index),
 			    ascb->scb->header.opcode);
+	}
+
+	/* Catch these before we mask off the sb_opcode bits */
+	switch (sb_opcode) {
+	case REQ_TASK_ABORT: {
+		struct asd_ascb *a, *b;
+		u16 tc_abort;
+
+		tc_abort = *((u16*)(&dl->status_block[1]));
+		tc_abort = le16_to_cpu(tc_abort);
+
+		ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n",
+			    __FUNCTION__, dl->status_block[3]);
+
+		/* Find the pending task and abort it. */
+		list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list)
+			if (a->tc_index == tc_abort) {
+				task_kill_later(a);
+				break;
+			}
+		goto out;
+	}
+	case REQ_DEVICE_RESET: {
+		struct Scsi_Host *shost = sas_ha->core.shost;
+		struct sas_phy *dev_phy;
+		struct asd_ascb *a;
+		u16 conn_handle;
+
+		conn_handle = *((u16*)(&dl->status_block[1]));
+		conn_handle = le16_to_cpu(conn_handle);
+
+		ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __FUNCTION__,
+			    dl->status_block[3]);
+
+		/* Kill all pending tasks and reset the device */
+		dev_phy = NULL;
+		list_for_each_entry(a, &asd_ha->seq.pend_q, list) {
+			struct sas_task *task;
+			struct domain_device *dev;
+			u16 x;
+
+			task = a->uldd_task;
+			if (!task)
+				continue;
+			dev = task->dev;
+
+			x = (unsigned long)dev->lldd_dev;
+			if (x == conn_handle) {
+				dev_phy = dev->port->phy;
+				task_kill_later(a);
+			}
+		}
+
+		/* Reset device port */
+		if (!dev_phy) {
+			ASD_DPRINTK("%s: No pending commands; can't reset.\n",
+				    __FUNCTION__);
+			goto out;
+		}
+		phy_reset_later(dev_phy, shost);
+		goto out;
+	}
+	case SIGNAL_NCQ_ERROR:
+		ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __FUNCTION__);
+		goto out;
+	case CLEAR_NCQ_ERROR:
+		ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __FUNCTION__);
+		goto out;
 	}
 
 	sb_opcode &= ~DL_PHY_MASK;
···
 		asd_deform_port(asd_ha, phy);
 		sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT);
 		break;
-	case REQ_TASK_ABORT:
-		ASD_DPRINTK("%s: phy%d: REQ_TASK_ABORT\n", __FUNCTION__,
-			    phy_id);
-		break;
-	case REQ_DEVICE_RESET:
-		ASD_DPRINTK("%s: phy%d: REQ_DEVICE_RESET\n", __FUNCTION__,
-			    phy_id);
-		break;
-	case SIGNAL_NCQ_ERROR:
-		ASD_DPRINTK("%s: phy%d: SIGNAL_NCQ_ERROR\n", __FUNCTION__,
-			    phy_id);
-		break;
-	case CLEAR_NCQ_ERROR:
-		ASD_DPRINTK("%s: phy%d: CLEAR_NCQ_ERROR\n", __FUNCTION__,
-			    phy_id);
-		break;
 	default:
 		ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__,
 			    phy_id, sb_opcode);
···
 
 		break;
 	}
-
+out:
 	asd_invalidate_edb(ascb, edb);
 }
 

drivers/scsi/fd_mcs.c

···
 static int user_fifo_count = 0;
 static int user_fifo_size = 0;
 
+#ifndef MODULE
 static int __init fd_mcs_setup(char *str)
 {
 	static int done_setup = 0;
···
 }
 
 __setup("fd_mcs=", fd_mcs_setup);
+#endif /* !MODULE */
 
 static void print_banner(struct Scsi_Host *shpnt)
 {

drivers/scsi/hosts.c

···
 		kthread_stop(shost->ehandler);
 	if (shost->work_q)
 		destroy_workqueue(shost->work_q);
+	if (shost->uspace_req_q) {
+		kfree(shost->uspace_req_q->queuedata);
+		scsi_free_queue(shost->uspace_req_q);
+	}
 
 	scsi_destroy_command_freelist(shost);
 	if (shost->bqt)
···
 	if (!shost)
 		return NULL;
 
-	spin_lock_init(&shost->default_lock);
-	scsi_assign_lock(shost, &shost->default_lock);
+	shost->host_lock = &shost->default_lock;
+	spin_lock_init(shost->host_lock);
 	shost->shost_state = SHOST_CREATED;
 	INIT_LIST_HEAD(&shost->__devices);
 	INIT_LIST_HEAD(&shost->__targets);

drivers/scsi/ibmvscsi/Makefile

···
 ibmvscsic-y			+= ibmvscsi.o
 ibmvscsic-$(CONFIG_PPC_ISERIES)	+= iseries_vscsi.o 
 ibmvscsic-$(CONFIG_PPC_PSERIES)	+= rpa_vscsi.o 
+
+obj-$(CONFIG_SCSI_IBMVSCSIS)	+= ibmvstgt.o

drivers/scsi/ibmvscsi/ibmvstgt.c

···
+/*
+ * IBM eServer i/pSeries Virtual SCSI Target Driver
+ * Copyright (C) 2003-2005 Dave Boutcher ([e-mail]) IBM Corp.
+ *			   Santiago Leon ([e-mail]) IBM Corp.
+ *			   Linda Xie ([e-mail]) IBM Corp.
+ *
+ * Copyright (C) 2005-2006 FUJITA Tomonori <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tgt.h>
+#include <scsi/libsrp.h>
+#include <asm/hvcall.h>
+#include <asm/iommu.h>
+#include <asm/prom.h>
+#include <asm/vio.h>
+
+#include "ibmvscsi.h"
+
+#define	INITIAL_SRP_LIMIT	16
+#define	DEFAULT_MAX_SECTORS	512
+
+#define	TGT_NAME	"ibmvstgt"
+
+/*
+ * Hypervisor calls.
+ */
+#define h_copy_rdma(l, sa, sb, da, db) \
+			plpar_hcall_norets(H_COPY_RDMA, l, sa, sb, da, db)
+#define h_send_crq(ua, l, h) \
+			plpar_hcall_norets(H_SEND_CRQ, ua, l, h)
+#define h_reg_crq(ua, tok, sz)\
+			plpar_hcall_norets(H_REG_CRQ, ua, tok, sz);
+#define h_free_crq(ua) \
+			plpar_hcall_norets(H_FREE_CRQ, ua);
+
+/* tmp - will replace with SCSI logging stuff */
+#define eprintk(fmt, args...)					\
+do {								\
+	printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args);	\
+} while (0)
+/* #define dprintk eprintk */
+#define dprintk(fmt, args...)
+
+struct vio_port {
+	struct vio_dev *dma_dev;
+
+	struct crq_queue crq_queue;
+	struct work_struct crq_work;
+
+	unsigned long liobn;
+	unsigned long riobn;
+};
+
+static struct workqueue_struct *vtgtd;
+
+/*
+ * These are fixed for the system and come from the Open Firmware device tree.
+ * We just store them here to save getting them every time.
+ */
+static char system_id[64] = "";
+static char partition_name[97] = "UNKNOWN";
+static unsigned int partition_number = -1;
+
+static struct vio_port *target_to_port(struct srp_target *target)
+{
+	return (struct vio_port *) target->ldata;
+}
+
+static inline union viosrp_iu *vio_iu(struct iu_entry *iue)
+{
+	return (union viosrp_iu *) (iue->sbuf->buf);
+}
+
+static int send_iu(struct iu_entry *iue, uint64_t length, uint8_t format)
+{
+	struct srp_target *target = iue->target;
+	struct vio_port *vport = target_to_port(target);
+	long rc, rc1;
+	union {
+		struct viosrp_crq cooked;
+		uint64_t raw[2];
+	} crq;
+
+	/* First copy the SRP */
+	rc = h_copy_rdma(length, vport->liobn, iue->sbuf->dma,
+			 vport->riobn, iue->remote_token);
+
+	if (rc)
+		eprintk("Error %ld transferring data\n", rc);
+
+	crq.cooked.valid = 0x80;
+	crq.cooked.format = format;
+	crq.cooked.reserved = 0x00;
+	crq.cooked.timeout = 0x00;
+	crq.cooked.IU_length = length;
+	crq.cooked.IU_data_ptr = vio_iu(iue)->srp.rsp.tag;
+
+	if (rc == 0)
+		crq.cooked.status = 0x99;	/* Just needs to be non-zero */
+	else
+		crq.cooked.status = 0x00;
+
+	rc1 = h_send_crq(vport->dma_dev->unit_address, crq.raw[0], crq.raw[1]);
+
+	if (rc1) {
+		eprintk("%ld sending response\n", rc1);
+		return rc1;
+	}
+
+	return rc;
+}
+
+#define SRP_RSP_SENSE_DATA_LEN	18
+
+static int send_rsp(struct iu_entry *iue, struct scsi_cmnd *sc,
+		    unsigned char status, unsigned char asc)
+{
+	union viosrp_iu *iu = vio_iu(iue);
+	uint64_t tag = iu->srp.rsp.tag;
+
+	/* If the linked bit is on and status is good */
+	if (test_bit(V_LINKED, &iue->flags) && (status == NO_SENSE))
+		status = 0x10;
+
+	memset(iu, 0, sizeof(struct srp_rsp));
+	iu->srp.rsp.opcode = SRP_RSP;
+	iu->srp.rsp.req_lim_delta = 1;
+	iu->srp.rsp.tag = tag;
+
+	if (test_bit(V_DIOVER, &iue->flags))
+		iu->srp.rsp.flags |= SRP_RSP_FLAG_DIOVER;
+
+	iu->srp.rsp.data_in_res_cnt = 0;
+	iu->srp.rsp.data_out_res_cnt = 0;
+
+	iu->srp.rsp.flags &= ~SRP_RSP_FLAG_RSPVALID;
+
+	iu->srp.rsp.resp_data_len = 0;
+	iu->srp.rsp.status = status;
+	if (status) {
+		uint8_t *sense = iu->srp.rsp.data;
+
+		if (sc) {
+			iu->srp.rsp.flags |= SRP_RSP_FLAG_SNSVALID;
+			iu->srp.rsp.sense_data_len = SCSI_SENSE_BUFFERSIZE;
+			memcpy(sense, sc->sense_buffer, SCSI_SENSE_BUFFERSIZE);
+		} else {
+			iu->srp.rsp.status = SAM_STAT_CHECK_CONDITION;
+			iu->srp.rsp.flags |= SRP_RSP_FLAG_SNSVALID;
+			iu->srp.rsp.sense_data_len = SRP_RSP_SENSE_DATA_LEN;
+
+			/* Valid bit and 'current errors' */
+			sense[0] = (0x1 << 7 | 0x70);
+			/* Sense key */
+			sense[2] = status;
+			/* Additional sense length */
+			sense[7] = 0xa;	/* 10 bytes */
+			/* Additional sense code */
+			sense[12] = asc;
+		}
+	}
+
+	send_iu(iue, sizeof(iu->srp.rsp) + SRP_RSP_SENSE_DATA_LEN,
+		VIOSRP_SRP_FORMAT);
+
+	return 0;
+}
+
+static void handle_cmd_queue(struct srp_target *target)
+{
+	struct Scsi_Host *shost = target->shost;
+	struct iu_entry *iue;
+	struct srp_cmd *cmd;
+	unsigned long flags;
+	int err;
+
+retry:
+	spin_lock_irqsave(&target->lock, flags);
+
+	list_for_each_entry(iue, &target->cmd_queue, ilist) {
+		if (!test_and_set_bit(V_FLYING, &iue->flags)) {
+			spin_unlock_irqrestore(&target->lock, flags);
+			cmd = iue->sbuf->buf;
+			err = srp_cmd_queue(shost, cmd, iue, 0);
+			if (err) {
+				eprintk("cannot queue cmd %p %d\n", cmd, err);
+				srp_iu_put(iue);
+			}
+			goto retry;
+		}
+	}
+
+	spin_unlock_irqrestore(&target->lock, flags);
+}
+
+static int ibmvstgt_rdma(struct scsi_cmnd *sc, struct scatterlist *sg, int nsg,
+			 struct srp_direct_buf *md, int nmd,
+			 enum dma_data_direction dir, unsigned int rest)
+{
+	struct iu_entry *iue = (struct iu_entry *) sc->SCp.ptr;
+	struct srp_target *target = iue->target;
+	struct vio_port *vport = target_to_port(target);
+	dma_addr_t token;
+	long err;
+	unsigned int done = 0;
+	int i, sidx, soff;
+
+	sidx = soff = 0;
+	token = sg_dma_address(sg + sidx);
+
+	for (i = 0; i < nmd && rest; i++) {
+		unsigned int mdone, mlen;
+
+		mlen = min(rest, md[i].len);
+		for (mdone = 0; mlen;) {
+			int slen = min(sg_dma_len(sg + sidx) - soff, mlen);
+
+			if (dir == DMA_TO_DEVICE)
+				err = h_copy_rdma(slen,
+						  vport->riobn,
+						  md[i].va + mdone,
+						  vport->liobn,
+						  token + soff);
+			else
+				err = h_copy_rdma(slen,
+						  vport->liobn,
+						  token + soff,
+						  vport->riobn,
+						  md[i].va + mdone);
+
+			if (err != H_SUCCESS) {
+				eprintk("rdma error %d %d\n", dir, slen);
+				goto out;
+			}
+
+			mlen -= slen;
+			mdone += slen;
+			soff += slen;
+			done += slen;
+
+			if (soff == sg_dma_len(sg + sidx)) {
+				sidx++;
+				soff = 0;
+				token = sg_dma_address(sg + sidx);
+
+				if (sidx > nsg) {
+					eprintk("out of sg %p %d %d\n",
+						iue, sidx, nsg);
+					goto out;
+				}
+			}
+		};
+
+		rest -= mlen;
+	}
+out:
+
+	return 0;
+}
+
+static int ibmvstgt_transfer_data(struct scsi_cmnd *sc,
+				  void (*done)(struct scsi_cmnd *))
+{
+	struct iu_entry	*iue = (struct iu_entry *) sc->SCp.ptr;
+	int err;
+
+	err = srp_transfer_data(sc, &vio_iu(iue)->srp.cmd, ibmvstgt_rdma, 1, 1);
+
+	done(sc);
+
+	return err;
+}
+
+static int ibmvstgt_cmd_done(struct scsi_cmnd *sc,
+			     void (*done)(struct scsi_cmnd *))
+{
+	unsigned long flags;
+	struct iu_entry *iue = (struct iu_entry *) sc->SCp.ptr;
+	struct srp_target *target = iue->target;
+
+	dprintk("%p %p %x\n", iue, target, vio_iu(iue)->srp.cmd.cdb[0]);
+
+	spin_lock_irqsave(&target->lock, flags);
+	list_del(&iue->ilist);
+	spin_unlock_irqrestore(&target->lock, flags);
+
+	if (sc->result != SAM_STAT_GOOD) {
+		eprintk("operation failed %p %d %x\n",
+			iue, sc->result, vio_iu(iue)->srp.cmd.cdb[0]);
+		send_rsp(iue, sc, HARDWARE_ERROR, 0x00);
+	} else
+		send_rsp(iue, sc, NO_SENSE, 0x00);
+
+	done(sc);
+	srp_iu_put(iue);
+	return 0;
+}
+
+int send_adapter_info(struct iu_entry *iue,
+		      dma_addr_t remote_buffer, uint16_t length)
+{
+	struct srp_target *target = iue->target;
+	struct vio_port *vport = target_to_port(target);
+	struct Scsi_Host *shost = target->shost;
+	dma_addr_t data_token;
+	struct mad_adapter_info_data *info;
+	int err;
+
+	info = dma_alloc_coherent(target->dev, sizeof(*info), &data_token,
+				  GFP_KERNEL);
+	if (!info) {
+		eprintk("bad dma_alloc_coherent %p\n", target);
+		return 1;
+	}
+
+	/* Get remote info */
+	err = h_copy_rdma(sizeof(*info), vport->riobn, remote_buffer,
+			  vport->liobn, data_token);
+	if (err == H_SUCCESS) {
+		dprintk("Client connect: %s (%d)\n",
+			info->partition_name, info->partition_number);
+	}
+
+	memset(info, 0, sizeof(*info));
+
+	strcpy(info->srp_version, "16.a");
+	strncpy(info->partition_name, partition_name,
+		sizeof(info->partition_name));
+	info->partition_number = partition_number;
+	info->mad_version = 1;
+	info->os_type = 2;
+	info->port_max_txu[0] = shost->hostt->max_sectors << 9;
+
+	/* Send our info to remote */
+	err = h_copy_rdma(sizeof(*info), vport->liobn, data_token,
+			  vport->riobn, remote_buffer);
+
+	dma_free_coherent(target->dev, sizeof(*info), info, data_token);
+
+	if (err != H_SUCCESS) {
+		eprintk("Error sending adapter info %d\n", err);
+		return 1;
+	}
+
+	return 0;
+}
+
+static void process_login(struct iu_entry *iue)
+{
+	union viosrp_iu *iu = vio_iu(iue);
+	struct srp_login_rsp *rsp = &iu->srp.login_rsp;
+	uint64_t tag = iu->srp.rsp.tag;
+
+	/* TODO handle case that requested size is wrong and
+	 * buffer format is wrong
+	 */
+	memset(iu, 0, sizeof(struct srp_login_rsp));
+	rsp->opcode = SRP_LOGIN_RSP;
+	rsp->req_lim_delta = INITIAL_SRP_LIMIT;
+	rsp->tag = tag;
+	rsp->max_it_iu_len = sizeof(union srp_iu);
+	rsp->max_ti_iu_len = sizeof(union srp_iu);
+	/* direct and indirect */
+	rsp->buf_fmt = SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT;
+
+	send_iu(iue, sizeof(*rsp), VIOSRP_SRP_FORMAT);
+}
+
+static inline void queue_cmd(struct iu_entry *iue)
+{
+	struct srp_target *target = iue->target;
+	unsigned long flags;
+
+	spin_lock_irqsave(&target->lock, flags);
+	list_add_tail(&iue->ilist, &target->cmd_queue);
+	spin_unlock_irqrestore(&target->lock, flags);
+}
+
+static int process_tsk_mgmt(struct iu_entry *iue)
+{
+	union viosrp_iu *iu = vio_iu(iue);
+	int fn;
+
+	dprintk("%p %u\n", iue, iu->srp.tsk_mgmt.tsk_mgmt_func);
+
+	switch (iu->srp.tsk_mgmt.tsk_mgmt_func) {
+	case SRP_TSK_ABORT_TASK:
+		fn = ABORT_TASK;
+		break;
+	case SRP_TSK_ABORT_TASK_SET:
+		fn = ABORT_TASK_SET;
+		break;
+	case SRP_TSK_CLEAR_TASK_SET:
+		fn = CLEAR_TASK_SET;
+		break;
+	case SRP_TSK_LUN_RESET:
+		fn = LOGICAL_UNIT_RESET;
+		break;
+	case SRP_TSK_CLEAR_ACA:
+		fn = CLEAR_ACA;
+		break;
+	default:
+		fn = 0;
+	}
+	if (fn)
+		scsi_tgt_tsk_mgmt_request(iue->target->shost, fn,
+					  iu->srp.tsk_mgmt.task_tag,
+					  (struct scsi_lun *) &iu->srp.tsk_mgmt.lun,
+					  iue);
+	else
+		send_rsp(iue, NULL, ILLEGAL_REQUEST, 0x20);
+
+	return !fn;
+}
+
+static int process_mad_iu(struct iu_entry *iue)
+{
+	union viosrp_iu *iu = vio_iu(iue);
+	struct viosrp_adapter_info *info;
+	struct viosrp_host_config *conf;
+
+	switch (iu->mad.empty_iu.common.type) {
+	case VIOSRP_EMPTY_IU_TYPE:
+		eprintk("%s\n", "Unsupported EMPTY MAD IU");
+		break;
+	case VIOSRP_ERROR_LOG_TYPE:
+		eprintk("%s\n", "Unsupported ERROR LOG MAD IU");
+		iu->mad.error_log.common.status = 1;
+		send_iu(iue, sizeof(iu->mad.error_log),	VIOSRP_MAD_FORMAT);
+		break;
+	case VIOSRP_ADAPTER_INFO_TYPE:
+		info = &iu->mad.adapter_info;
+		info->common.status = send_adapter_info(iue, info->buffer,
+							info->common.length);
+		send_iu(iue, sizeof(*info), VIOSRP_MAD_FORMAT);
+		break;
+	case VIOSRP_HOST_CONFIG_TYPE:
+		conf = &iu->mad.host_config;
+		conf->common.status = 1;
+		send_iu(iue, sizeof(*conf), VIOSRP_MAD_FORMAT);
+		break;
+	default:
+		eprintk("Unknown type %u\n", iu->srp.rsp.opcode);
+	}
+
+	return 1;
+}
+
+static int process_srp_iu(struct iu_entry *iue)
+{
+	union viosrp_iu *iu = vio_iu(iue);
+	int done = 1;
+	u8 opcode = iu->srp.rsp.opcode;
+
+	switch (opcode) {
+	case SRP_LOGIN_REQ:
+		process_login(iue);
+		break;
+	case SRP_TSK_MGMT:
+		done = process_tsk_mgmt(iue);
+		break;
+	case SRP_CMD:
+		queue_cmd(iue);
+		done = 0;
+		break;
+	case SRP_LOGIN_RSP:
+	case SRP_I_LOGOUT:
+	case SRP_T_LOGOUT:
+	case SRP_RSP:
+	case SRP_CRED_REQ:
+	case SRP_CRED_RSP:
+	case SRP_AER_REQ:
+	case SRP_AER_RSP:
+		eprintk("Unsupported type %u\n", opcode);
+		break;
+	default:
+		eprintk("Unknown type %u\n", opcode);
+	}
+
+	return done;
+}
+
+static void process_iu(struct viosrp_crq *crq, struct srp_target *target)
+{
+	struct vio_port *vport = target_to_port(target);
+	struct iu_entry *iue;
+	long err, done;
+
+	iue = srp_iu_get(target);
+	if (!iue) {
+		eprintk("Error getting IU from pool, %p\n", target);
+		return;
+	}
+
+	iue->remote_token = crq->IU_data_ptr;
+
+	err = h_copy_rdma(crq->IU_length, vport->riobn,
+			  iue->remote_token, vport->liobn, iue->sbuf->dma);
+
+	if (err != H_SUCCESS) {
+		eprintk("%ld transferring data error %p\n", err, iue);
+		done = 1;
+		goto out;
+	}
+
+	if (crq->format == VIOSRP_MAD_FORMAT)
+		done = process_mad_iu(iue);
+	else
+		done = process_srp_iu(iue);
+out:
+	if (done)
+		srp_iu_put(iue);
+}
+
+static irqreturn_t ibmvstgt_interrupt(int irq, void *data)
+{
+	struct srp_target *target = (struct srp_target *) data;
+	struct vio_port *vport = target_to_port(target);
+
+	vio_disable_interrupts(vport->dma_dev);
+	queue_work(vtgtd, &vport->crq_work);
+
+	return IRQ_HANDLED;
+}
+
+static int crq_queue_create(struct crq_queue *queue, struct srp_target *target)
+{
+	int err;
+	struct vio_port *vport = target_to_port(target);
+
+	queue->msgs = (struct viosrp_crq *) get_zeroed_page(GFP_KERNEL);
+	if (!queue->msgs)
+		goto malloc_failed;
+	queue->size = PAGE_SIZE / sizeof(*queue->msgs);
+
+	queue->msg_token = dma_map_single(target->dev, queue->msgs,
+					  queue->size * sizeof(*queue->msgs),
+					  DMA_BIDIRECTIONAL);
+
+	if (dma_mapping_error(queue->msg_token))
+		goto map_failed;
+
+	err = h_reg_crq(vport->dma_dev->unit_address, queue->msg_token,
+			PAGE_SIZE);
+
+	/* If the adapter was left active for some reason (like kexec)
+	 * try freeing and re-registering
+	 */
+	if (err == H_RESOURCE) {
+	    do {
+		err = h_free_crq(vport->dma_dev->unit_address);
+	    } while (err == H_BUSY || H_IS_LONG_BUSY(err));
+
+	    err = h_reg_crq(vport->dma_dev->unit_address, queue->msg_token,
+			    PAGE_SIZE);
+	}
+
+	if (err != H_SUCCESS && err != 2) {
+		eprintk("Error 0x%x opening virtual adapter\n", err);
+		goto reg_crq_failed;
+	}
+
+	err = request_irq(vport->dma_dev->irq, &ibmvstgt_interrupt,
+			  SA_INTERRUPT, "ibmvstgt", target);
+	if (err)
+		goto req_irq_failed;
+
+	vio_enable_interrupts(vport->dma_dev);
+
+	h_send_crq(vport->dma_dev->unit_address, 0xC001000000000000, 0);
+
+	queue->cur = 0;
+	spin_lock_init(&queue->lock);
+
+	return 0;
+
+req_irq_failed:
+	do {
+		err = h_free_crq(vport->dma_dev->unit_address);
+	} while (err == H_BUSY || H_IS_LONG_BUSY(err));
+
+reg_crq_failed:
+	dma_unmap_single(target->dev, queue->msg_token,
+			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
+map_failed:
+	free_page((unsigned long) queue->msgs);
+
+malloc_failed:
+	return -ENOMEM;
+}
+
+static void crq_queue_destroy(struct srp_target *target)
+{
+	struct vio_port *vport = target_to_port(target);
+	struct crq_queue *queue = &vport->crq_queue;
+	int err;
+
+	free_irq(vport->dma_dev->irq, target);
+	do {
+		err = h_free_crq(vport->dma_dev->unit_address);
+	} while (err == H_BUSY || H_IS_LONG_BUSY(err));
+
+	dma_unmap_single(target->dev, queue->msg_token,
+			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
+
+	free_page((unsigned long) queue->msgs);
+}
+
+static void process_crq(struct viosrp_crq *crq,	struct srp_target *target)
+{
+	struct vio_port *vport = target_to_port(target);
+	dprintk("%x %x\n", crq->valid, crq->format);
+
+	switch (crq->valid) {
+	case 0xC0:
+		/* initialization */
+		switch (crq->format) {
+		case 0x01:
+			h_send_crq(vport->dma_dev->unit_address,
+				   0xC002000000000000, 0);
+			break;
+		case 0x02:
+			break;
+		default:
+			eprintk("Unknown format %u\n", crq->format);
+		}
+		break;
+	case 0xFF:
+		/* transport event */
+		break;
+	case 0x80:
+		/* real payload */
+		switch (crq->format) {
+		case VIOSRP_SRP_FORMAT:
+		case VIOSRP_MAD_FORMAT:
+			process_iu(crq, target);
+			break;
+		case VIOSRP_OS400_FORMAT:
+		case VIOSRP_AIX_FORMAT:
+		case VIOSRP_LINUX_FORMAT:
+		case VIOSRP_INLINE_FORMAT:
+			eprintk("Unsupported format %u\n", crq->format);
+			break;
+		default:
+			eprintk("Unknown format %u\n", crq->format);
+		}
+		break;
+	default:
+		eprintk("unknown message type 0x%02x!?\n", crq->valid);
+	}
+}
+
+static inline struct viosrp_crq *next_crq(struct crq_queue *queue)
+{
+	struct viosrp_crq *crq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&queue->lock, flags);
+	crq = &queue->msgs[queue->cur];
+	if (crq->valid & 0x80) {
+		if (++queue->cur == queue->size)
+			queue->cur = 0;
+	} else
+		crq = NULL;
+	spin_unlock_irqrestore(&queue->lock, flags);
+
+	return crq;
+}
+
+static void handle_crq(void *data)
+{
+	struct srp_target *target = (struct srp_target *) data;
+	struct vio_port *vport = target_to_port(target);
+	struct viosrp_crq *crq;
+	int done = 0;
+
+	while (!done) {
+		while ((crq = next_crq(&vport->crq_queue)) != NULL) {
+			process_crq(crq, target);
+			crq->valid = 0x00;
+		}
+
+		vio_enable_interrupts(vport->dma_dev);
+
+		crq = next_crq(&vport->crq_queue);
+		if (crq) {
+			vio_disable_interrupts(vport->dma_dev);
+			process_crq(crq, target);
+			crq->valid = 0x00;
+		} else
+			done = 1;
+	}
+
+	handle_cmd_queue(target);
+}
+
+
+static int ibmvstgt_eh_abort_handler(struct scsi_cmnd *sc)
+{
+	unsigned long flags;
+	struct iu_entry *iue = (struct iu_entry *) sc->SCp.ptr;
+	struct srp_target *target = iue->target;
+
+	dprintk("%p %p %x\n", iue, target, vio_iu(iue)->srp.cmd.cdb[0]);
+
+	spin_lock_irqsave(&target->lock, flags);
+	list_del(&iue->ilist);
+	spin_unlock_irqrestore(&target->lock, flags);
+
+	srp_iu_put(iue);
+
+	return 0;
+}
+
+static int ibmvstgt_tsk_mgmt_response(u64 mid, int result)
+{
+	struct iu_entry *iue = (struct iu_entry *) ((void *) mid);
+	union viosrp_iu *iu = vio_iu(iue);
+	unsigned char status, asc;
+
+	eprintk("%p %d\n", iue, result);
+	status = NO_SENSE;
+	asc = 0;
+
+	switch (iu->srp.tsk_mgmt.tsk_mgmt_func) {
+	case SRP_TSK_ABORT_TASK:
+		asc = 0x14;
+		if (result)
+			status = ABORTED_COMMAND;
+		break;
+	default:
+		break;
+	}
+
+	send_rsp(iue, NULL, status, asc);
+	srp_iu_put(iue);
+
+	return 0;
+}
+
+static ssize_t system_id_show(struct class_device *cdev, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%s\n", system_id);
+}
+
+static ssize_t partition_number_show(struct class_device *cdev, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%x\n", partition_number);
+}
+
+static ssize_t unit_address_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct srp_target *target = host_to_srp_target(shost);
+	struct vio_port *vport = target_to_port(target);
+	return snprintf(buf, PAGE_SIZE, "%x\n", vport->dma_dev->unit_address);
+}
+
+static CLASS_DEVICE_ATTR(system_id, S_IRUGO, system_id_show, NULL);
+static CLASS_DEVICE_ATTR(partition_number, S_IRUGO, partition_number_show, NULL);
+static CLASS_DEVICE_ATTR(unit_address, S_IRUGO, unit_address_show, NULL);
+
+static struct class_device_attribute *ibmvstgt_attrs[] = {
+	&class_device_attr_system_id,
+	&class_device_attr_partition_number,
+	&class_device_attr_unit_address,
+	NULL,
+};
+
+static struct scsi_host_template ibmvstgt_sht = {
+	.name			= TGT_NAME,
+	.module			= THIS_MODULE,
+	.can_queue		= INITIAL_SRP_LIMIT,
+	.sg_tablesize		= SG_ALL,
+	.use_clustering		= DISABLE_CLUSTERING,
+	.max_sectors		= DEFAULT_MAX_SECTORS,
+	.transfer_response	= ibmvstgt_cmd_done,
+	.transfer_data		= ibmvstgt_transfer_data,
+	.eh_abort_handler	= ibmvstgt_eh_abort_handler,
+	.tsk_mgmt_response	= ibmvstgt_tsk_mgmt_response,
+	.shost_attrs		= ibmvstgt_attrs,
+	.proc_name		= TGT_NAME,
+};
+
+static int ibmvstgt_probe(struct vio_dev *dev, const struct vio_device_id *id)
+{
+	struct Scsi_Host *shost;
+	struct srp_target *target;
+	struct vio_port *vport;
+	unsigned int *dma, dma_size;
+	int err = -ENOMEM;
+
+	vport = kzalloc(sizeof(struct vio_port), GFP_KERNEL);
+	if (!vport)
+		return err;
+	shost = scsi_host_alloc(&ibmvstgt_sht, sizeof(struct srp_target));
+	if (!shost)
+		goto free_vport;
+	err = scsi_tgt_alloc_queue(shost);
+	if (err)
+		goto put_host;
+
+	target = host_to_srp_target(shost);
+	target->shost = shost;
+	vport->dma_dev = dev;
+	target->ldata = vport;
+	err = srp_target_alloc(target, &dev->dev, INITIAL_SRP_LIMIT,
+			       SRP_MAX_IU_LEN);
+	if (err)
+		goto put_host;
+
+	dma = (unsigned int *) vio_get_attribute(dev, "ibm,my-dma-window",
+						 &dma_size);
+	if (!dma || dma_size != 40) {
+		eprintk("Couldn't get window property %d\n", dma_size);
+		err = -EIO;
+		goto free_srp_target;
+	}
+	vport->liobn = dma[0];
+	vport->riobn = dma[5];
+
+	INIT_WORK(&vport->crq_work, handle_crq, target);
+
+	err = crq_queue_create(&vport->crq_queue, target);
+	if (err)
+		goto free_srp_target;
+
+	err = scsi_add_host(shost, target->dev);
+	if (err)
+		goto destroy_queue;
+	return 0;
+
+destroy_queue:
+	crq_queue_destroy(target);
+free_srp_target:
+	srp_target_free(target);
+put_host:
+	scsi_host_put(shost);
+free_vport:
+	kfree(vport);
+	return err;
+}
+
+static int ibmvstgt_remove(struct vio_dev *dev)
+{
+	struct srp_target *target = (struct srp_target *) dev->dev.driver_data;
+	struct Scsi_Host *shost = target->shost;
+	struct vio_port *vport = target->ldata;
+
+	crq_queue_destroy(target);
+	scsi_remove_host(shost);
+	scsi_tgt_free_queue(shost);
+	srp_target_free(target);
+	kfree(vport);
+	scsi_host_put(shost);
+	return 0;
+}
+
+static struct vio_device_id ibmvstgt_device_table[] __devinitdata = {
+	{"v-scsi-host", "IBM,v-scsi-host"},
+	{"",""}
+};
+
+MODULE_DEVICE_TABLE(vio, ibmvstgt_device_table);
+
+static struct vio_driver ibmvstgt_driver = {
+	.id_table = ibmvstgt_device_table,
+	.probe = ibmvstgt_probe,
+	.remove = ibmvstgt_remove,
+	.driver = {
+		.name = "ibmvscsis",
+		.owner = THIS_MODULE,
+	}
+};
+
+static int get_system_info(void)
+{
+	struct device_node *rootdn;
+	const char *id, *model, *name;
+	unsigned int *num;
+
+	rootdn = find_path_device("/");
+	if (!rootdn)
+		return -ENOENT;
+
+	model = get_property(rootdn, "model", NULL);
+	id = get_property(rootdn, "system-id", NULL);
+	if (model && id)
+		snprintf(system_id, sizeof(system_id), "%s-%s", model, id);
+
+	name = get_property(rootdn, "ibm,partition-name", NULL);
+	if (name)
+		strncpy(partition_name, name, sizeof(partition_name));
+
+	num = (unsigned int *) get_property(rootdn, "ibm,partition-no", NULL);
+	if (num)
+		partition_number = *num;
+
+	return 0;
+}
+
+static int ibmvstgt_init(void)
+{
+	int err = -ENOMEM;
+
+	printk("IBM eServer i/pSeries Virtual SCSI Target Driver\n");
+
+	vtgtd = create_workqueue("ibmvtgtd");
+	if (!vtgtd)
+		return err;
+
+	err = get_system_info();
+	if (err)
+		goto destroy_wq;
+
+	err = vio_register_driver(&ibmvstgt_driver);
+	if (err)
+		goto destroy_wq;
+
+	return 0;
+
+destroy_wq:
+	destroy_workqueue(vtgtd);
+	return err;
+}
+
+static void ibmvstgt_exit(void)
+{
+	printk("Unregister IBM virtual SCSI driver\n");
+
+	destroy_workqueue(vtgtd);
+	vio_unregister_driver(&ibmvstgt_driver);
+}
+
+MODULE_DESCRIPTION("IBM Virtual SCSI Target");
+MODULE_AUTHOR("Santiago Leon");
+MODULE_LICENSE("GPL");
+
+module_init(ibmvstgt_init);
+module_exit(ibmvstgt_exit);

drivers/scsi/initio.c

···
 static void i91uSCBPost(BYTE * pHcb, BYTE * pScb);
 
 /* PCI Devices supported by this driver */
-static struct pci_device_id i91u_pci_devices[] __devinitdata = {
+static struct pci_device_id i91u_pci_devices[] = {
 	{ PCI_VENDOR_ID_INIT,  I950_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_INIT,  I940_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_INIT,  I935_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},

drivers/scsi/ipr.c

···
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_transport.h>
 #include "ipr.h"
 
 /*
···
 
 /* This table describes the differences between DMA controller chips */
 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
-	{ /* Gemstone, Citrine, and Obsidian */
+	{ /* Gemstone, Citrine, Obsidian, and Obsidian-E */
 		.mailbox = 0x0042C,
 		.cache_line_size = 0x20,
 		{
···
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
 	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
 };
···
 
 /**
  * ipr_log_hex_data - Log additional hex IOA error data.
+ * @ioa_cfg:	ioa config struct
  * @data:		IOA error data
  * @len:		data length
  *
  * Return value:
  * 	none
  **/
-static void ipr_log_hex_data(u32 *data, int len)
+static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
 {
 	int i;
 
 	if (len == 0)
 		return;
+
+	if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
+		len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
 
 	for (i = 0; i < len / 4; i += 4) {
 		ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
···
 	ipr_err("%s\n", error->failure_reason);
 	ipr_err("Remote Adapter VPD:\n");
 	ipr_log_ext_vpd(&error->vpd);
-	ipr_log_hex_data(error->data,
+	ipr_log_hex_data(ioa_cfg, error->data,
 			 be32_to_cpu(hostrcb->hcam.length) -
 			 (offsetof(struct ipr_hostrcb_error, u) +
 			  offsetof(struct ipr_hostrcb_type_17_error, data)));
···
 	ipr_err("%s\n", error->failure_reason);
 	ipr_err("Remote Adapter VPD:\n");
 	ipr_log_vpd(&error->vpd);
-	ipr_log_hex_data(error->data,
+	ipr_log_hex_data(ioa_cfg, error->data,
 			 be32_to_cpu(hostrcb->hcam.length) -
 			 (offsetof(struct ipr_hostrcb_error, u) +
 			  offsetof(struct ipr_hostrcb_type_07_error, data)));
+}
+
+static const struct {
+	u8 active;
+	char *desc;
+} path_active_desc[] = {
+	{ IPR_PATH_NO_INFO, "Path" },
+	{ IPR_PATH_ACTIVE, "Active path" },
+	{ IPR_PATH_NOT_ACTIVE, "Inactive path" }
+};
+
+static const struct {
+	u8 state;
+	char *desc;
+} path_state_desc[] = {
+	{ IPR_PATH_STATE_NO_INFO, "has no path state information available" },
+	{ IPR_PATH_HEALTHY, "is healthy" },
+	{ IPR_PATH_DEGRADED, "is degraded" },
+	{ IPR_PATH_FAILED, "is failed" }
+};
+
+/**
+ * ipr_log_fabric_path - Log a fabric path error
+ * @hostrcb:	hostrcb struct
+ * @fabric:		fabric descriptor
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
+				struct ipr_hostrcb_fabric_desc *fabric)
+{
+	int i, j;
+	u8 path_state = fabric->path_state;
+	u8 active = path_state & IPR_PATH_ACTIVE_MASK;
+	u8 state = path_state & IPR_PATH_STATE_MASK;
+
+	for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
+		if (path_active_desc[i].active != active)
+			continue;
+
+		for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
+			if (path_state_desc[j].state != state)
+				continue;
+
+			if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
+				ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
+					     path_active_desc[i].desc, path_state_desc[j].desc,
+					     fabric->ioa_port);
+			} else if (fabric->cascaded_expander == 0xff) {
+				ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
+					     path_active_desc[i].desc, path_state_desc[j].desc,
+					     fabric->ioa_port, fabric->phy);
+			} else if (fabric->phy == 0xff) {
+				ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
+					     path_active_desc[i].desc, path_state_desc[j].desc,
+					     fabric->ioa_port, fabric->cascaded_expander);
+			} else {
+				ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
+					     path_active_desc[i].desc, path_state_desc[j].desc,
+					     fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
+			}
+			return;
+		}
+	}
+
+	ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
+		fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
+}
+
+static const struct {
+	u8 type;
+	char *desc;
+} path_type_desc[] = {
+	{ IPR_PATH_CFG_IOA_PORT, "IOA port" },
+	{ IPR_PATH_CFG_EXP_PORT, "Expander port" },
+	{ IPR_PATH_CFG_DEVICE_PORT, "Device port" },
+	{ IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
+};
+
+static const struct {
+	u8 status;
+	char *desc;
+} path_status_desc[] = {
+	{ IPR_PATH_CFG_NO_PROB, "Functional" },
+	{ IPR_PATH_CFG_DEGRADED, "Degraded" },
+	{ IPR_PATH_CFG_FAILED, "Failed" },
+	{ IPR_PATH_CFG_SUSPECT, "Suspect" },
+	{ IPR_PATH_NOT_DETECTED, "Missing" },
+	{ IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
+};
+
+static const char *link_rate[] = {
+	"unknown",
+	"disabled",
+	"phy reset problem",
+	"spinup hold",
+	"port selector",
+	"unknown",
+	"unknown",
+	"unknown",
+	"1.5Gbps",
+	"3.0Gbps",
+	"unknown",
+	"unknown",
+	"unknown",
+	"unknown",
+	"unknown",
+	"unknown"
+};
+
+/**
+ * ipr_log_path_elem - Log a fabric path element.
+ * @hostrcb:	hostrcb struct
+ * @cfg:		fabric path element struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
+			      struct ipr_hostrcb_config_element *cfg)
+{
+	int i, j;
+	u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
+	u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
+
+	if (type == IPR_PATH_CFG_NOT_EXIST)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
+		if (path_type_desc[i].type != type)
+			continue;
+
+		for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
+			if (path_status_desc[j].status != status)
+				continue;
+
+			if (type == IPR_PATH_CFG_IOA_PORT) {
+				ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
+					     path_status_desc[j].desc, path_type_desc[i].desc,
+					     cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+					     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+			} else {
+				if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
+					ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
+						     path_status_desc[j].desc, path_type_desc[i].desc,
+						     link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+						     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+				} else if (cfg->cascaded_expander == 0xff) {
+					ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
+						     "WWN=%08X%08X\n", path_status_desc[j].desc,
+						     path_type_desc[i].desc, cfg->phy,
+						     link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+						     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+				} else if (cfg->phy == 0xff) {
+					ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
+						     "WWN=%08X%08X\n", path_status_desc[j].desc,
+						     path_type_desc[i].desc, cfg->cascaded_expander,
+						     link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+						     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+				} else {
+					ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
+						     "WWN=%08X%08X\n", path_status_desc[j].desc,
+						     path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
+						     link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+						     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+				}
+			}
+			return;
+		}
+	}
+
+	ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
+		     "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
+		     link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
+		     be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
+}
+
+/**
+ * ipr_log_fabric_error - Log a fabric error.
+ * @ioa_cfg:	ioa config struct
+ * @hostrcb:	hostrcb struct
+ *
+ * Return value:
+ * 	none
+ **/
+static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
+				 struct ipr_hostrcb *hostrcb)
+{
+	struct ipr_hostrcb_type_20_error *error;
+	struct ipr_hostrcb_fabric_desc *fabric;
+	struct ipr_hostrcb_config_element *cfg;
+	int i, add_len;
+
+	error = &hostrcb->hcam.u.error.u.type_20_error;
+	error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
+	ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
+
+	add_len = be32_to_cpu(hostrcb->hcam.length) -
+		(offsetof(struct ipr_hostrcb_error, u) +
+		 offsetof(struct ipr_hostrcb_type_20_error, desc));
+
+	for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
+		ipr_log_fabric_path(hostrcb, fabric);
+		for_each_fabric_cfg(fabric, cfg)
+			ipr_log_path_elem(hostrcb, cfg);
+
+		add_len -= be16_to_cpu(fabric->length);
+		fabric = (struct ipr_hostrcb_fabric_desc *)
+			((unsigned long)fabric + be16_to_cpu(fabric->length));
+	}
+
+	ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
 }
 
 /**
···
 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
 				  struct ipr_hostrcb *hostrcb)
 {
-	ipr_log_hex_data(hostrcb->hcam.u.raw.data,
+	ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
 			 be32_to_cpu(hostrcb->hcam.length));
 }
 
···
 	if (!ipr_error_table[error_index].log_hcam)
 		return;
 
-	if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) {
-		ipr_ra_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr,
-			   "%s\n", ipr_error_table[error_index].error);
-	} else {
-		dev_err(&ioa_cfg->pdev->dev, "%s\n",
-			ipr_error_table[error_index].error);
-	}
+	ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
 
 	/* Set indication we have logged an error */
 	ioa_cfg->errors_logged++;
···
 		break;
 	case IPR_HOST_RCB_OVERLAY_ID_17:
 		ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
+		break;
+	case IPR_HOST_RCB_OVERLAY_ID_20:
+		ipr_log_fabric_error(ioa_cfg, hostrcb);
 		break;
 	case IPR_HOST_RCB_OVERLAY_ID_1:
 	case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
···
 	struct ipr_dump *dump;
 	unsigned long lock_flags = 0;
 
-	ENTER;
 	dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
 
 	if (!dump) {
···
 	}
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 
-	LEAVE;
 	return 0;
 }
 
···
 
 	ENTER;
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	while(ioa_cfg->in_reset_reload) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	}
+
 	res = sata_port->res;
 	if (res) {
 		rc = ipr_device_reset(ioa_cfg, res);
···
 		if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
 			if (ipr_cmd->scsi_cmd)
 				ipr_cmd->done = ipr_scsi_eh_done;
+			if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
+				ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
+				ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
+			}
 		}
 	}
 
···
 	 */
 	if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
 		return FAILED;
-	if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res)))
+	if (!res || !ipr_is_gscsi(res))
 		return FAILED;
 
 	list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
···
  * Return value:
  * 	0 on success / other on failure
  **/
-int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
+static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
 {
 	struct ipr_resource_entry *res;
 
···
 
 	return buffer;
 }
-
-/**
- * ipr_scsi_timed_out - Handle scsi command timeout
- * @scsi_cmd:	scsi command struct
- *
- * Return value:
- * 	EH_NOT_HANDLED
- **/
-enum scsi_eh_timer_return ipr_scsi_timed_out(struct scsi_cmnd *scsi_cmd)
-{
-	struct ipr_ioa_cfg *ioa_cfg;
-	struct ipr_cmnd *ipr_cmd;
-	unsigned long flags;
-
-	ENTER;
-	spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
-	ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
-
-	list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
-		if (ipr_cmd->qc && ipr_cmd->qc->scsicmd == scsi_cmd) {
-			ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
-			ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
-			break;
-		}
-	}
-
-	spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
-	LEAVE;
-	return EH_NOT_HANDLED;
-}
-
-static struct scsi_transport_template ipr_transport_template = {
-	.eh_timed_out = ipr_scsi_timed_out
-};
 
 static struct scsi_host_template driver_template = {
 	.module = THIS_MODULE,
···
 	unsigned long flags;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
+	while(ioa_cfg->in_reset_reload) {
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
+		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+		spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
+	}
+
 	list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
 		if (ipr_cmd->qc == qc) {
 			ipr_device_reset(ioa_cfg, sata_port->res);
···
 
 		ioa_cfg->hostrcb[i]->hostrcb_dma =
 			ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
+		ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
 		list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
 	}
 
···
 
 	ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
 	memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
-	host->transportt = &ipr_transport_template;
 	ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
 		      sata_port_info.flags, &ipr_sata_ops);
 
···
 	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
 	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
 	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
+	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
 	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A,
 	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
 	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B8,
+	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
+	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7,
 	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
 		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780,
···
 		0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
 	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
 		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F,
+		0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
+		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F,
 		0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
 	{ }
 };

drivers/scsi/ipr.h

···
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.2.0"
-#define IPR_DRIVER_DATE "(September 25, 2006)"
+#define IPR_DRIVER_VERSION "2.3.0"
+#define IPR_DRIVER_DATE "(November 8, 2006)"
 
 /*
  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
···
  */
 #define IPR_NUM_BASE_CMD_BLKS				100
 
+#define PCI_DEVICE_ID_IBM_OBSIDIAN_E	0x0339
+
 #define IPR_SUBS_DEV_ID_2780	0x0264
 #define IPR_SUBS_DEV_ID_5702	0x0266
 #define IPR_SUBS_DEV_ID_5703	0x0278
···
 #define IPR_SUBS_DEV_ID_571F	0x02D5
 #define IPR_SUBS_DEV_ID_572A	0x02C1
 #define IPR_SUBS_DEV_ID_572B	0x02C2
+#define IPR_SUBS_DEV_ID_572F	0x02C3
 #define IPR_SUBS_DEV_ID_575B	0x030D
+#define IPR_SUBS_DEV_ID_575C	0x0338
+#define IPR_SUBS_DEV_ID_57B7	0x0360
+#define IPR_SUBS_DEV_ID_57B8	0x02C2
 
 #define IPR_NAME				"ipr"
 
···
 #define IPR_IOASC_IOA_WAS_RESET			0x10000001
 #define IPR_IOASC_PCI_ACCESS_ERROR			0x10000002
 
+#define IPR_DEFAULT_MAX_ERROR_DUMP			984
 #define IPR_NUM_LOG_HCAMS				2
 #define IPR_NUM_CFG_CHG_HCAMS				2
 #define IPR_NUM_HCAMS	(IPR_NUM_LOG_HCAMS + IPR_NUM_CFG_CHG_HCAMS)
···
 	u32 data[476];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb_config_element {
+	u8 type_status;
+#define IPR_PATH_CFG_TYPE_MASK	0xF0
+#define IPR_PATH_CFG_NOT_EXIST	0x00
+#define IPR_PATH_CFG_IOA_PORT		0x10
+#define IPR_PATH_CFG_EXP_PORT		0x20
+#define IPR_PATH_CFG_DEVICE_PORT	0x30
+#define IPR_PATH_CFG_DEVICE_LUN	0x40
+
+#define IPR_PATH_CFG_STATUS_MASK	0x0F
+#define IPR_PATH_CFG_NO_PROB		0x00
+#define IPR_PATH_CFG_DEGRADED		0x01
+#define IPR_PATH_CFG_FAILED		0x02
+#define IPR_PATH_CFG_SUSPECT		0x03
+#define IPR_PATH_NOT_DETECTED		0x04
+#define IPR_PATH_INCORRECT_CONN	0x05
+
+	u8 cascaded_expander;
+	u8 phy;
+	u8 link_rate;
+#define IPR_PHY_LINK_RATE_MASK	0x0F
+
+	__be32 wwid[2];
+}__attribute__((packed, aligned (4)));
+
+struct ipr_hostrcb_fabric_desc {
+	__be16 length;
+	u8 ioa_port;
+	u8 cascaded_expander;
+	u8 phy;
+	u8 path_state;
+#define IPR_PATH_ACTIVE_MASK		0xC0
+#define IPR_PATH_NO_INFO		0x00
+#define IPR_PATH_ACTIVE			0x40
+#define IPR_PATH_NOT_ACTIVE		0x80
+
+#define IPR_PATH_STATE_MASK		0x0F
+#define IPR_PATH_STATE_NO_INFO	0x00
+#define IPR_PATH_HEALTHY		0x01
+#define IPR_PATH_DEGRADED		0x02
+#define IPR_PATH_FAILED			0x03
+
+	__be16 num_entries;
+	struct ipr_hostrcb_config_element elem[1];
+}__attribute__((packed, aligned (4)));
+
+#define for_each_fabric_cfg(fabric, cfg) \
+		for (cfg = (fabric)->elem; \
+			cfg < ((fabric)->elem + be16_to_cpu((fabric)->num_entries)); \
+			cfg++)
+
+struct ipr_hostrcb_type_20_error {
+	u8 failure_reason[64];
+	u8 reserved[3];
+	u8 num_entries;
+	struct ipr_hostrcb_fabric_desc desc[1];
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_error {
 	__be32 failing_dev_ioasc;
 	struct ipr_res_addr failing_dev_res_addr;
···
 		struct ipr_hostrcb_type_13_error type_13_error;
 		struct ipr_hostrcb_type_14_error type_14_error;
 		struct ipr_hostrcb_type_17_error type_17_error;
+		struct ipr_hostrcb_type_20_error type_20_error;
 	} u;
 }__attribute__((packed, aligned (4)));
 
···
 #define IPR_HOST_RCB_OVERLAY_ID_14				0x14
 #define IPR_HOST_RCB_OVERLAY_ID_16				0x16
 #define IPR_HOST_RCB_OVERLAY_ID_17				0x17
+#define IPR_HOST_RCB_OVERLAY_ID_20				0x20
 #define IPR_HOST_RCB_OVERLAY_ID_DEFAULT			0xFF
 
 	u8 reserved1[3];
···
 	struct ipr_hcam hcam;
 	dma_addr_t hostrcb_dma;
 	struct list_head queue;
+	struct ipr_ioa_cfg *ioa_cfg;
 };
 
 /* IPR smart dump table structures */
···
 			##__VA_ARGS__, (ioa_cfg)->host->host_no,	\
 			(res).bus, (res).target, (res).lun);		\
 	}								\
+}
+
+#define ipr_hcam_err(hostrcb, fmt, ...)					\
+{													\
+	if (ipr_is_device(&(hostrcb)->hcam.u.error.failing_dev_res_addr)) {		\
+		ipr_ra_err((hostrcb)->ioa_cfg,							\
+				(hostrcb)->hcam.u.error.failing_dev_res_addr,			\
+				fmt, ##__VA_ARGS__);							\
+	} else {											\
+		dev_err(&(hostrcb)->ioa_cfg->pdev->dev, fmt, ##__VA_ARGS__);		\
+	}												\
 }
 
 #define ipr_trace ipr_dbg("%s: %s: Line: %d\n",\

drivers/scsi/ips.c

···
 				break;
 
 			/* Delay for 1 Second */
-			msleep(IPS_ONE_SEC);
+			MDELAY(IPS_ONE_SEC);
 		}
 
 		if (j >= 45)
···
 				break;
 
 			/* Delay for 1 Second */
-			msleep(IPS_ONE_SEC);
+			MDELAY(IPS_ONE_SEC);
 		}
 
 		if (j >= 240)
···
 			break;
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 	}
 
 	if (i >= 240)
···
 				break;
 
 			/* Delay for 1 Second */
-			msleep(IPS_ONE_SEC);
+			MDELAY(IPS_ONE_SEC);
 		}
 
 		if (j >= 45)
···
 				break;
 
 			/* Delay for 1 Second */
-			msleep(IPS_ONE_SEC);
+			MDELAY(IPS_ONE_SEC);
 		}
 
 		if (j >= 240)
···
 			break;
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 	}
 
 	if (i >= 240)
···
 			break;
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 	}
 
 	if (i >= 45) {
···
 			if (Post != 0x4F00)
 				break;
 			/* Delay for 1 Second */
-			msleep(IPS_ONE_SEC);
+			MDELAY(IPS_ONE_SEC);
 		}
 
 		if (i >= 120) {
···
 			break;
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 	}
 
 	if (i >= 240) {
···
 		outb(IPS_BIT_RST, ha->io_addr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 
 		outb(0, ha->io_addr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 
 		if ((*ha->func.init) (ha))
 			break;
···
 		writeb(IPS_BIT_RST, ha->mem_ptr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 
 		writeb(0, ha->mem_ptr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		msleep(IPS_ONE_SEC);
+		MDELAY(IPS_ONE_SEC);
 
 		if ((*ha->func.init) (ha))
 			break;
···
 		writel(0x80000000, ha->mem_ptr + IPS_REG_I960_IDR);
 
 		/* Delay for 5 Seconds */
-		msleep(5 * IPS_ONE_SEC);
+		MDELAY(5 * IPS_ONE_SEC);
 
 		/* Do a PCI config read to wait for adapter */
 		pci_read_config_byte(ha->pcidev, 4, &junk);

drivers/scsi/ips.h

···
    #define _IPS_H_
 
 #include <linux/version.h>
+#include <linux/nmi.h>
    #include <asm/uaccess.h>
    #include <asm/io.h>
 
···
             dev_printk(level , &((pcidev)->dev) , format , ## arg)
    #endif
 
-   #ifndef MDELAY
-      #define MDELAY mdelay
-   #endif
+   #define MDELAY(n)			\
+	do {				\
+		mdelay(n);		\
+		touch_nmi_watchdog();	\
+	} while (0)
 
    #ifndef min
       #define min(x,y) ((x) < (y) ? x : y)

drivers/scsi/libsas/sas_expander.c

···
 	child->iproto = phy->attached_iproto;
 	memcpy(child->sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE);
 	sas_hash_addr(child->hashed_sas_addr, child->sas_addr);
-	phy->port = sas_port_alloc(&parent->rphy->dev, phy_id);
-	BUG_ON(!phy->port);
-	/* FIXME: better error handling*/
-	BUG_ON(sas_port_add(phy->port) != 0);
+	if (!phy->port) {
+		phy->port = sas_port_alloc(&parent->rphy->dev, phy_id);
+		if (unlikely(!phy->port))
+			goto out_err;
+		if (unlikely(sas_port_add(phy->port) != 0)) {
+			sas_port_free(phy->port);
+			goto out_err;
+		}
+	}
 	sas_ex_get_linkrate(parent, child, phy);
 
 	if ((phy->attached_tproto & SAS_PROTO_STP) || phy->attached_sata_dev) {
···
 			SAS_DPRINTK("report phy sata to %016llx:0x%x returned "
 				    "0x%x\n", SAS_ADDR(parent->sas_addr),
 				    phy_id, res);
-			kfree(child);
-			return NULL;
+			goto out_free;
 		}
 		memcpy(child->frame_rcvd, &child->sata_dev.rps_resp.rps.fis,
 		       sizeof(struct dev_to_host_fis));
···
 				    "%016llx:0x%x returned 0x%x\n",
 				    SAS_ADDR(child->sas_addr),
 				    SAS_ADDR(parent->sas_addr), phy_id, res);
-			kfree(child);
-			return NULL;
+			goto out_free;
 		}
 	} else if (phy->attached_tproto & SAS_PROTO_SSP) {
 		child->dev_type = SAS_END_DEV;
 		rphy = sas_end_device_alloc(phy->port);
 		/* FIXME: error handling */
-		BUG_ON(!rphy);
+		if (unlikely(!rphy))
+			goto out_free;
 		child->tproto = phy->attached_tproto;
 		sas_init_dev(child);
 
···
 				    "at %016llx:0x%x returned 0x%x\n",
 				    SAS_ADDR(child->sas_addr),
 				    SAS_ADDR(parent->sas_addr), phy_id, res);
-			/* FIXME: this kfrees list elements without removing them */
-			//kfree(child);
-			return NULL;
+			goto out_list_del;
 		}
 	} else {
 		SAS_DPRINTK("target proto 0x%x at %016llx:0x%x not handled\n",
···
 
 	list_add_tail(&child->siblings, &parent_ex->children);
 	return child;
+
+ out_list_del:
+	list_del(&child->dev_list_node);
+	sas_rphy_free(rphy);
+ out_free:
+	sas_port_delete(phy->port);
+ out_err:
+	phy->port = NULL;
+	kfree(child);
+	return NULL;
 }
 
 static struct domain_device *sas_ex_discover_expander(

drivers/scsi/libsas/sas_init.c

···
 		}
 	}
 
+	INIT_LIST_HEAD(&sas_ha->eh_done_q);
+
 	return 0;
 
 Undo_ports:
···
 	return sas_smp_get_phy_events(phy);
 }
 
-static int sas_phy_reset(struct sas_phy *phy, int hard_reset)
+int sas_phy_reset(struct sas_phy *phy, int hard_reset)
 {
 	int ret;
 	enum phy_func reset_type;

drivers/scsi/libsas/sas_scsi_host.c

···
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsi.h>
+#include <scsi/scsi_eh.h>
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_transport_sas.h>
 #include "../scsi_sas_internal.h"
+#include "../scsi_transport_api.h"
 
 #include <linux/err.h>
 #include <linux/blkdev.h>
···
 {
 	struct task_status_struct *ts = &task->task_status;
 	struct scsi_cmnd *sc = task->uldd_task;
+	struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(sc->device->host);
 	unsigned ts_flags = task->task_state_flags;
 	int hs = 0, stat = 0;
 
···
 	sas_free_task(task);
 	/* This is very ugly but this is how SCSI Core works. */
 	if (ts_flags & SAS_TASK_STATE_ABORTED)
-		scsi_finish_command(sc);
+		scsi_eh_finish_cmd(sc, &sas_ha->eh_done_q);
 	else
 		sc->scsi_done(sc);
 }
···
 		spin_unlock_irqrestore(&core->task_queue_lock, flags);
 	}
 
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_INITIATOR_ABORTED) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		SAS_DPRINTK("%s: task 0x%p already aborted\n",
+			    __FUNCTION__, task);
+		return TASK_IS_ABORTED;
+	}
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
 	for (i = 0; i < 5; i++) {
 		SAS_DPRINTK("%s: aborting task 0x%p\n", __FUNCTION__, task);
 		res = si->dft->lldd_abort_task(task);
···
 	SAS_DPRINTK("going over list...\n");
 	list_for_each_entry_safe(cmd, n, &error_q, eh_entry) {
 		struct sas_task *task = TO_SAS_TASK(cmd);
-
-		SAS_DPRINTK("trying to find task 0x%p\n", task);
 		list_del_init(&cmd->eh_entry);
+
+		if (!task) {
+			SAS_DPRINTK("%s: taskless cmd?!\n", __FUNCTION__);
+			continue;
+		}
+		SAS_DPRINTK("trying to find task 0x%p\n", task);
 		res = sas_scsi_find_task(task);
 
 		cmd->eh_eflags = 0;
-		shost->host_failed--;
 
 		switch (res) {
 		case TASK_IS_DONE:
···
 		}
 	}
 out:
+	scsi_eh_flush_done_q(&ha->eh_done_q);
 	SAS_DPRINTK("--- Exit %s\n", __FUNCTION__);
 	return;
 clear_q:
···
 	unsigned long flags;
 
 	if (!task) {
-		SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
+		SAS_DPRINTK("command 0x%p, task 0x%p, gone: EH_HANDLED\n",
 			    cmd, task);
 		return EH_HANDLED;
 	}
 
 	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_INITIATOR_ABORTED) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		SAS_DPRINTK("command 0x%p, task 0x%p, aborted by initiator: "
+			    "EH_NOT_HANDLED\n", cmd, task);
+		return EH_NOT_HANDLED;
+	}
 	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
 		spin_unlock_irqrestore(&task->task_state_lock, flags);
 		SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
···
 	spin_unlock_irqrestore(&core->task_queue_lock, flags);
 }
 
+static int do_sas_task_abort(struct sas_task *task)
+{
+	struct scsi_cmnd *sc = task->uldd_task;
+	struct sas_internal *si =
+		to_sas_internal(task->dev->port->ha->core.shost->transportt);
+	unsigned long flags;
+	int res;
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		SAS_DPRINTK("%s: Task %p already aborted.\n", __FUNCTION__,
+			    task);
+		return 0;
+	}
+
+	task->task_state_flags |= SAS_TASK_INITIATOR_ABORTED;
+	if (!(task->task_state_flags & SAS_TASK_STATE_DONE))
+		task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	if (!si->dft->lldd_abort_task)
+		return -ENODEV;
+
+	res = si->dft->lldd_abort_task(task);
+	if ((task->task_state_flags & SAS_TASK_STATE_DONE) ||
+	    (res == TMF_RESP_FUNC_COMPLETE))
+	{
+		/* SMP commands don't have scsi_cmds(?) */
+		if (!sc) {
+			task->task_done(task);
+			return 0;
+		}
+		scsi_req_abort_cmd(sc);
+		scsi_schedule_eh(sc->device->host);
+		return 0;
+	}
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	task->task_state_flags &= ~SAS_TASK_INITIATOR_ABORTED;
+	if (!(task->task_state_flags & SAS_TASK_STATE_DONE))
+		task->task_state_flags &= ~SAS_TASK_STATE_ABORTED;
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	return -EAGAIN;
+}
+
+void sas_task_abort(struct sas_task *task)
+{
+	int i;
+
+	for (i = 0; i < 5; i++)
+		if (!do_sas_task_abort(task))
+			return;
+
+	SAS_DPRINTK("%s: Could not kill task!\n", __FUNCTION__);
+}
+
 EXPORT_SYMBOL_GPL(sas_queuecommand);
 EXPORT_SYMBOL_GPL(sas_target_alloc);
 EXPORT_SYMBOL_GPL(sas_slave_configure);
···
 EXPORT_SYMBOL_GPL(sas_change_queue_depth);
 EXPORT_SYMBOL_GPL(sas_change_queue_type);
 EXPORT_SYMBOL_GPL(sas_bios_param);
+EXPORT_SYMBOL_GPL(sas_task_abort);
+EXPORT_SYMBOL_GPL(sas_phy_reset);

drivers/scsi/libsrp.c

···
+/*
+ * SCSI RDAM Protocol lib functions
+ *
+ * Copyright (C) 2006 FUJITA Tomonori <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/err.h>
+#include <linux/kfifo.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_tgt.h>
+#include <scsi/srp.h>
+#include <scsi/libsrp.h>
+
+enum srp_task_attributes {
+	SRP_SIMPLE_TASK = 0,
+	SRP_HEAD_TASK = 1,
+	SRP_ORDERED_TASK = 2,
+	SRP_ACA_TASK = 4
+};
+
+/* tmp - will replace with SCSI logging stuff */
+#define eprintk(fmt, args...)					\
+do {								\
+	printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args);	\
+} while (0)
+/* #define dprintk eprintk */
+#define dprintk(fmt, args...)
+
+static int srp_iu_pool_alloc(struct srp_queue *q, size_t max,
+			     struct srp_buf **ring)
+{
+	int i;
+	struct iu_entry *iue;
+
+	q->pool = kcalloc(max, sizeof(struct iu_entry *), GFP_KERNEL);
+	if (!q->pool)
+		return -ENOMEM;
+	q->items = kcalloc(max, sizeof(struct iu_entry), GFP_KERNEL);
+	if (!q->items)
+		goto free_pool;
+
+	spin_lock_init(&q->lock);
+	q->queue = kfifo_init((void *) q->pool, max * sizeof(void *),
+			      GFP_KERNEL, &q->lock);
+	if (IS_ERR(q->queue))
+		goto free_item;
+
+	for (i = 0, iue = q->items; i < max; i++) {
+		__kfifo_put(q->queue, (void *) &iue, sizeof(void *));
+		iue->sbuf = ring[i];
+		iue++;
+	}
+	return 0;
+
+free_item:
+	kfree(q->items);
+free_pool:
+	kfree(q->pool);
+	return -ENOMEM;
+}
+
+static void srp_iu_pool_free(struct srp_queue *q)
+{
+	kfree(q->items);
+	kfree(q->pool);
+}
+
+static struct srp_buf **srp_ring_alloc(struct device *dev,
+				       size_t max, size_t size)
+{
+	int i;
+	struct srp_buf **ring;
+
+	ring = kcalloc(max, sizeof(struct srp_buf *), GFP_KERNEL);
+	if (!ring)
+		return NULL;
+
+	for (i = 0; i < max; i++) {
+		ring[i] = kzalloc(sizeof(struct srp_buf), GFP_KERNEL);
+		if (!ring[i])
+			goto out;
+		ring[i]->buf = dma_alloc_coherent(dev, size, &ring[i]->dma,
+						  GFP_KERNEL);
+		if (!ring[i]->buf)
+			goto out;
+	}
+	return ring;
+
+out:
+	for (i = 0; i < max && ring[i]; i++) {
+		if (ring[i]->buf)
+			dma_free_coherent(dev, size, ring[i]->buf, ring[i]->dma);
+		kfree(ring[i]);
+	}
+	kfree(ring);
+
+	return NULL;
+}
+
+static void srp_ring_free(struct device *dev, struct srp_buf **ring, size_t max,
+			  size_t size)
+{
+	int i;
+
+	for (i = 0; i < max; i++) {
+		dma_free_coherent(dev, size, ring[i]->buf, ring[i]->dma);
+		kfree(ring[i]);
+	}
+}
+
+int srp_target_alloc(struct srp_target *target, struct device *dev,
+		     size_t nr, size_t iu_size)
+{
+	int err;
+
+	spin_lock_init(&target->lock);
+	INIT_LIST_HEAD(&target->cmd_queue);
+
+	target->dev = dev;
+	target->dev->driver_data = target;
+
+	target->srp_iu_size = iu_size;
+	target->rx_ring_size = nr;
+	target->rx_ring = srp_ring_alloc(target->dev, nr, iu_size);
+	if (!target->rx_ring)
+		return -ENOMEM;
+	err = srp_iu_pool_alloc(&target->iu_queue, nr, target->rx_ring);
+	if (err)
+		goto free_ring;
+
+	return 0;
+
+free_ring:
+	srp_ring_free(target->dev, target->rx_ring, nr, iu_size);
+	return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(srp_target_alloc);
+
+void srp_target_free(struct srp_target *target)
+{
+	srp_ring_free(target->dev, target->rx_ring, target->rx_ring_size,
+		      target->srp_iu_size);
+	srp_iu_pool_free(&target->iu_queue);
+}
+EXPORT_SYMBOL_GPL(srp_target_free);
+
+struct iu_entry *srp_iu_get(struct srp_target *target)
+{
+	struct iu_entry *iue = NULL;
+
+	kfifo_get(target->iu_queue.queue, (void *) &iue, sizeof(void *));
+	if (!iue)
+		return iue;
+	iue->target = target;
+	INIT_LIST_HEAD(&iue->ilist);
+	iue->flags = 0;
+	return iue;
+}
+EXPORT_SYMBOL_GPL(srp_iu_get);
+
+void srp_iu_put(struct iu_entry *iue)
+{
+	kfifo_put(iue->target->iu_queue.queue, (void *) &iue, sizeof(void *));
+}
+EXPORT_SYMBOL_GPL(srp_iu_put);
+
+static int srp_direct_data(struct scsi_cmnd *sc, struct srp_direct_buf *md,
+			   enum dma_data_direction dir, srp_rdma_t rdma_io,
+			   int dma_map, int ext_desc)
+{
+	struct iu_entry *iue = NULL;
+	struct scatterlist *sg = NULL;
+	int err, nsg = 0, len;
+
+	if (dma_map) {
+		iue = (struct iu_entry *) sc->SCp.ptr;
+		sg = sc->request_buffer;
+
+		dprintk("%p %u %u %d\n", iue, sc->request_bufflen,
+			md->len, sc->use_sg);
+
+		nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg,
+				 DMA_BIDIRECTIONAL);
+		if (!nsg) {
+			printk("fail to map %p %d\n", iue, sc->use_sg);
+			return 0;
+		}
+		len = min(sc->request_bufflen, md->len);
+	} else
+		len = md->len;
+
+	err = rdma_io(sc, sg, nsg, md, 1, dir, len);
+
+	if (dma_map)
+		dma_unmap_sg(iue->target->dev, sg, nsg, DMA_BIDIRECTIONAL);
+
+	return err;
+}
+
+static int srp_indirect_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
+			     struct srp_indirect_buf *id,
+			     enum dma_data_direction dir, srp_rdma_t rdma_io,
+			     int dma_map, int ext_desc)
+{
+	struct iu_entry *iue = NULL;
+	struct srp_direct_buf *md = NULL;
+	struct scatterlist dummy, *sg = NULL;
+	dma_addr_t token = 0;
+	long err;
+	unsigned int done = 0;
+	int nmd, nsg = 0, len;
+
+	if (dma_map || ext_desc) {
+		iue = (struct iu_entry *) sc->SCp.ptr;
+		sg = sc->request_buffer;
+
+		dprintk("%p %u %u %d %d\n",
+			iue, sc->request_bufflen, id->len,
+			cmd->data_in_desc_cnt, cmd->data_out_desc_cnt);
+	}
+
+	nmd = id->table_desc.len / sizeof(struct srp_direct_buf);
+
+	if ((dir == DMA_FROM_DEVICE && nmd == cmd->data_in_desc_cnt) ||
+	    (dir == DMA_TO_DEVICE && nmd == cmd->data_out_desc_cnt)) {
+		md = &id->desc_list[0];
+		goto rdma;
+	}
+
+	if (ext_desc && dma_map) {
+		md = dma_alloc_coherent(iue->target->dev, id->table_desc.len,
+				&token, GFP_KERNEL);
+		if (!md) {
+			eprintk("Can't get dma memory %u\n", id->table_desc.len);
+			return -ENOMEM;
+		}
+
+		sg_init_one(&dummy, md, id->table_desc.len);
+		sg_dma_address(&dummy) = token;
+		err = rdma_io(sc, &dummy, 1, &id->table_desc, 1, DMA_TO_DEVICE,
+			      id->table_desc.len);
+		if (err < 0) {
+			eprintk("Error copying indirect table %ld\n", err);
+			goto free_mem;
+		}
+	} else {
+		eprintk("This command uses external indirect buffer\n");
+		return -EINVAL;
+	}
+
+rdma:
+	if (dma_map) {
+		nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg, DMA_BIDIRECTIONAL);
+		if (!nsg) {
+			eprintk("fail to map %p %d\n", iue, sc->use_sg);
+			goto free_mem;
+		}
+		len = min(sc->request_bufflen, id->len);
+	} else
+		len = id->len;
+
+	err = rdma_io(sc, sg, nsg, md, nmd, dir, len);
+
+	if (dma_map)
+		dma_unmap_sg(iue->target->dev, sg, nsg, DMA_BIDIRECTIONAL);
+
+free_mem:
+	if (token && dma_map)
+		dma_free_coherent(iue->target->dev, id->table_desc.len, md, token);
+
+	return done;
+}
+
+static int data_out_desc_size(struct srp_cmd *cmd)
+{
+	int size = 0;
+	u8 fmt = cmd->buf_fmt >> 4;
+
+	switch (fmt) {
+	case SRP_NO_DATA_DESC:
+		break;
+	case SRP_DATA_DESC_DIRECT:
+		size = sizeof(struct srp_direct_buf);
+		break;
+	case SRP_DATA_DESC_INDIRECT:
+		size = sizeof(struct srp_indirect_buf) +
+			sizeof(struct srp_direct_buf) * cmd->data_out_desc_cnt;
+		break;
+	default:
+		eprintk("client error. Invalid data_out_format %x\n", fmt);
+		break;
+	}
+	return size;
+}
+
+/*
+ * TODO: this can be called multiple times for a single command if it
+ * has very long data.
+ */
+int srp_transfer_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
+		      srp_rdma_t rdma_io, int dma_map, int ext_desc)
+{
+	struct srp_direct_buf *md;
+	struct srp_indirect_buf *id;
+	enum dma_data_direction dir;
+	int offset, err = 0;
+	u8 format;
+
+	offset = cmd->add_cdb_len * 4;
+
+	dir = srp_cmd_direction(cmd);
+	if (dir == DMA_FROM_DEVICE)
+		offset += data_out_desc_size(cmd);
+
+	if (dir == DMA_TO_DEVICE)
+		format = cmd->buf_fmt >> 4;
+	else
+		format = cmd->buf_fmt & ((1U << 4) - 1);
+
+	switch (format) {
+	case SRP_NO_DATA_DESC:
+		break;
+	case SRP_DATA_DESC_DIRECT:
+		md = (struct srp_direct_buf *)
+			(cmd->add_data + offset);
+		err = srp_direct_data(sc, md, dir, rdma_io, dma_map, ext_desc);
+		break;
+	case SRP_DATA_DESC_INDIRECT:
+		id = (struct srp_indirect_buf *)
+			(cmd->add_data + offset);
+		err = srp_indirect_data(sc, cmd, id, dir, rdma_io, dma_map,
+					ext_desc);
+		break;
+	default:
+		eprintk("Unknown format %d %x\n", dir, format);
+		break;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(srp_transfer_data);
+
+static int vscsis_data_length(struct srp_cmd *cmd, enum dma_data_direction dir)
+{
+	struct srp_direct_buf *md;
+	struct srp_indirect_buf *id;
+	int len = 0, offset = cmd->add_cdb_len * 4;
+	u8 fmt;
+
+	if (dir == DMA_TO_DEVICE)
+		fmt = cmd->buf_fmt >> 4;
+	else {
+		fmt = cmd->buf_fmt & ((1U << 4) - 1);
+		offset += data_out_desc_size(cmd);
+	}
+
+	switch (fmt) {
+	case SRP_NO_DATA_DESC:
+		break;
+	case SRP_DATA_DESC_DIRECT:
+		md = (struct srp_direct_buf *) (cmd->add_data + offset);
+		len = md->len;
+		break;
+	case SRP_DATA_DESC_INDIRECT:
+		id = (struct srp_indirect_buf *) (cmd->add_data + offset);
+		len = id->len;
+		break;
+	default:
+		eprintk("invalid data format %x\n", fmt);
+		break;
+	}
+	return len;
+}
+
+int srp_cmd_queue(struct Scsi_Host *shost, struct srp_cmd *cmd, void *info,
+		  u64 addr)
+{
+	enum dma_data_direction dir;
+	struct scsi_cmnd *sc;
+	int tag, len, err;
+
+	switch (cmd->task_attr) {
+	case SRP_SIMPLE_TASK:
+		tag = MSG_SIMPLE_TAG;
+		break;
+	case SRP_ORDERED_TASK:
+		tag = MSG_ORDERED_TAG;
+		break;
+	case SRP_HEAD_TASK:
+		tag = MSG_HEAD_TAG;
+		break;
+	default:
+		eprintk("Task attribute %d not supported\n", cmd->task_attr);
+		tag = MSG_ORDERED_TAG;
+	}
+
+	dir = srp_cmd_direction(cmd);
+	len = vscsis_data_length(cmd, dir);
+
+	dprintk("%p %x %lx %d %d %d %llx\n", info, cmd->cdb[0],
+		cmd->lun, dir, len, tag, (unsigned long long) cmd->tag);
+
+	sc = scsi_host_get_command(shost, dir, GFP_KERNEL);
+	if (!sc)
+		return -ENOMEM;
+
+	sc->SCp.ptr = info;
+	memcpy(sc->cmnd, cmd->cdb, MAX_COMMAND_SIZE);
+	sc->request_bufflen = len;
+	sc->request_buffer = (void *) (unsigned long) addr;
+	sc->tag = tag;
+	err = scsi_tgt_queue_command(sc, (struct scsi_lun *) &cmd->lun, cmd->tag);
+	if (err)
+		scsi_host_put_command(shost, sc);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(srp_cmd_queue);
+
+MODULE_DESCRIPTION("SCSI RDAM Protocol lib functions");
+MODULE_AUTHOR("FUJITA Tomonori");
+MODULE_LICENSE("GPL");

drivers/scsi/lpfc/lpfc.h

···
 	uint32_t cfg_cr_delay;
 	uint32_t cfg_cr_count;
 	uint32_t cfg_multi_ring_support;
+	uint32_t cfg_multi_ring_rctl;
+	uint32_t cfg_multi_ring_type;
 	uint32_t cfg_fdmi_on;
 	uint32_t cfg_discovery_threads;
 	uint32_t cfg_max_luns;
 	uint32_t cfg_poll;
 	uint32_t cfg_poll_tmo;
+	uint32_t cfg_use_msi;
 	uint32_t cfg_sg_seg_cnt;
 	uint32_t cfg_sg_dma_buf_size;
+	uint64_t cfg_soft_wwnn;
 	uint64_t cfg_soft_wwpn;
 
 	uint32_t dev_loss_tmo_changed;
···
 #define VPD_PORT            0x8         /* valid vpd port data */
 #define VPD_MASK            0xf         /* mask for any vpd data */
 
-	uint8_t soft_wwpn_enable;
+	uint8_t soft_wwn_enable;
 
 	struct timer_list fcp_poll_timer;
 	struct timer_list els_tmofunc;

drivers/scsi/lpfc/lpfc_attr.c

···
 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 
 
-static char *lpfc_soft_wwpn_key = "C99G71SL8032A";
+static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 
 static ssize_t
-lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
+lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
 				size_t count)
 {
 	struct Scsi_Host *host = class_to_shost(cdev);
···
 	if (buf[cnt-1] == '\n')
 		cnt--;
 
-	if ((cnt != strlen(lpfc_soft_wwpn_key)) ||
-	    (strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0))
+	if ((cnt != strlen(lpfc_soft_wwn_key)) ||
+	    (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
 		return -EINVAL;
 
-	phba->soft_wwpn_enable = 1;
+	phba->soft_wwn_enable = 1;
 	return count;
 }
-static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL,
-				lpfc_soft_wwpn_enable_store);
+static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
+				lpfc_soft_wwn_enable_store);
 
 static ssize_t
 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
···
 	if (buf[cnt-1] == '\n')
 		cnt--;
 
-	if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
+	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
 	    ((cnt == 17) && (*buf++ != 'x')) ||
 	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
 		return -EINVAL;
 
-	phba->soft_wwpn_enable = 0;
+	phba->soft_wwn_enable = 0;
 
 	memset(wwpn, 0, sizeof(wwpn));
 
···
 	}
 	phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
 	fc_host_port_name(host) = phba->cfg_soft_wwpn;
+	if (phba->cfg_soft_wwnn)
+		fc_host_node_name(host) = phba->cfg_soft_wwnn;
 
 	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
 		   "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
···
 }
 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
 			 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
+
+static ssize_t
+lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+			(unsigned long long)phba->cfg_soft_wwnn);
+}
+
+
+static ssize_t
+lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	unsigned int i, j, cnt=count;
+	u8 wwnn[8];
+
+	/* count may include a LF at end of string */
+	if (buf[cnt-1] == '\n')
+		cnt--;
+
+	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
+	    ((cnt == 17) && (*buf++ != 'x')) ||
+	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
+		return -EINVAL;
+
+	/*
+	 * Allow wwnn to be set many times, as long as the enable is set.
+	 * However, once the wwpn is set, everything locks.
+	 */
+
+	memset(wwnn, 0, sizeof(wwnn));
+
+	/* Validate and store the new name */
+	for (i=0, j=0; i < 16; i++) {
+		if ((*buf >= 'a') && (*buf <= 'f'))
+			j = ((j << 4) | ((*buf++ -'a') + 10));
+		else if ((*buf >= 'A') && (*buf <= 'F'))
+			j = ((j << 4) | ((*buf++ -'A') + 10));
+		else if ((*buf >= '0') && (*buf <= '9'))
+			j = ((j << 4) | (*buf++ -'0'));
+		else
+			return -EINVAL;
+		if (i % 2) {
+			wwnn[i/2] = j & 0xff;
+			j = 0;
+		}
+	}
+	phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
+
+	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
+		   "lpfc%d: soft_wwnn set. Value will take effect upon "
+		   "setting of the soft_wwpn\n", phba->brd_no);
+
+	return count;
+}
+static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
+			 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
 
 
 static int lpfc_poll = 0;
···
 # LOG_MBOX                      0x4        Mailbox events
 # LOG_INIT                      0x8        Initialization events
 # LOG_LINK_EVENT                0x10       Link events
-# LOG_IP                        0x20       IP traffic history
 # LOG_FCP                       0x40       FCP traffic history
 # LOG_NODE                      0x80       Node table events
 # LOG_MISC                      0x400      Miscellaneous events
 # LOG_SLI                       0x800      SLI events
-# LOG_CHK_COND                  0x1000     FCP Check condition flag
+# LOG_FCP_ERROR                 0x1000     Only log FCP errors
 # LOG_LIBDFC                    0x2000     LIBDFC events
 # LOG_ALL_MSG                   0xffff     LOG all messages
 */
···
 		"SLI rings to spread IOCB entries across");
 
 /*
+# lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
+# identifies what rctl value to configure the additional ring for.
+# Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
+*/
+LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
+	     255, "Identifies RCTL for additional ring configuration");
+
+/*
+# lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
+# identifies what type value to configure the additional ring for.
+# Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
+*/
+LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
+	     255, "Identifies TYPE for additional ring configuration");
+
+/*
 # lpfc_fdmi_on: controls FDMI support.
 #       0 = no FDMI support
 #       1 = support FDMI without attribute of hostname
···
 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 	     "Milliseconds driver will wait between polling FCP ring");
 
+/*
+# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
+#		support this feature
+#       0  = MSI disabled (default)
+#       1  = MSI enabled
+# Value range is [0,1]. Default value is 0.
+*/
+LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
+
 
 struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_info,
···
 	&class_device_attr_lpfc_cr_delay,
 	&class_device_attr_lpfc_cr_count,
 	&class_device_attr_lpfc_multi_ring_support,
+	&class_device_attr_lpfc_multi_ring_rctl,
+	&class_device_attr_lpfc_multi_ring_type,
 	&class_device_attr_lpfc_fdmi_on,
 	&class_device_attr_lpfc_max_luns,
 	&class_device_attr_nport_evt_cnt,
···
 	&class_device_attr_issue_reset,
 	&class_device_attr_lpfc_poll,
 	&class_device_attr_lpfc_poll_tmo,
+	&class_device_attr_lpfc_use_msi,
+	&class_device_attr_lpfc_soft_wwnn,
 	&class_device_attr_lpfc_soft_wwpn,
-	&class_device_attr_lpfc_soft_wwpn_enable,
+	&class_device_attr_lpfc_soft_wwn_enable,
 	NULL,
 };
 
···
 	lpfc_cr_delay_init(phba, lpfc_cr_delay);
 	lpfc_cr_count_init(phba, lpfc_cr_count);
 	lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
+	lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
+	lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
 	lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
 	lpfc_fcp_class_init(phba, lpfc_fcp_class);
 	lpfc_use_adisc_init(phba, lpfc_use_adisc);
···
 	lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
 	lpfc_max_luns_init(phba, lpfc_max_luns);
 	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
+	lpfc_use_msi_init(phba, lpfc_use_msi);
 	lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
 	lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
 	phba->cfg_poll = lpfc_poll;
+	phba->cfg_soft_wwnn = 0L;
 	phba->cfg_soft_wwpn = 0L;
 
 	/*

drivers/scsi/lpfc/lpfc_ct.c

···
 	return;
 }
 
+static void
+lpfc_cmpl_ct_cmd_rff_id(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
+			 struct lpfc_iocbq * rspiocb)
+{
+	lpfc_cmpl_ct_cmd_rft_id(phba, cmdiocb, rspiocb);
+	return;
+}
+
 void
 lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp)
 {
···
 		bpl->tus.f.bdeSize = RNN_REQUEST_SZ;
 	else if (cmdcode == SLI_CTNS_RSNN_NN)
 		bpl->tus.f.bdeSize = RSNN_REQUEST_SZ;
+	else if (cmdcode == SLI_CTNS_RFF_ID)
+		bpl->tus.f.bdeSize = RFF_REQUEST_SZ;
 	else
 		bpl->tus.f.bdeSize = 0;
 	bpl->tus.w = le32_to_cpu(bpl->tus.w);
···
 		CtReq->un.rft.PortId = be32_to_cpu(phba->fc_myDID);
 		CtReq->un.rft.fcpReg = 1;
 		cmpl = lpfc_cmpl_ct_cmd_rft_id;
+		break;
+
+	case SLI_CTNS_RFF_ID:
+		CtReq->CommandResponse.bits.CmdRsp =
+			be16_to_cpu(SLI_CTNS_RFF_ID);
+		CtReq->un.rff.PortId = be32_to_cpu(phba->fc_myDID);
+		CtReq->un.rff.feature_res = 0;
+		CtReq->un.rff.feature_tgt = 0;
+		CtReq->un.rff.type_code = FC_FCP_DATA;
+		CtReq->un.rff.feature_init = 1;
+		cmpl = lpfc_cmpl_ct_cmd_rff_id;
 		break;
 
 	case SLI_CTNS_RNN_ID:
···
 			ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
 			ae->ad.bits.AttrType = be16_to_cpu(OS_NAME_VERSION);
 			sprintf(ae->un.OsNameVersion, "%s %s %s",
-				init_utsname()->sysname, init_utsname()->release,
+				init_utsname()->sysname,
+				init_utsname()->release,
 				init_utsname()->version);
 			len = strlen(ae->un.OsNameVersion);
 			len += (len & 3) ? (4 - (len & 3)) : 4;

drivers/scsi/lpfc/lpfc_els.c

···
 		struct serv_parm *sp, IOCB_t *irsp)
 {
 	LPFC_MBOXQ_t *mbox;
+	struct lpfc_dmabuf *mp;
 	int rc;
 
 	spin_lock_irq(phba->host->host_lock);
···
 
 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
 	if (rc == MBX_NOT_FINISHED)
-		goto fail_free_mbox;
+		goto fail_issue_reg_login;
 
 	return 0;
 
+ fail_issue_reg_login:
+	mp = (struct lpfc_dmabuf *) mbox->context1;
+	lpfc_mbuf_free(phba, mp->virt, mp->phys);
+	kfree(mp);
  fail_free_mbox:
 	mempool_free(mbox, phba->mbox_mem_pool);
  fail:
···
 	struct serv_parm *sp;
 	uint8_t name[sizeof (struct lpfc_name)];
 	uint32_t rc;
+
+	/* Fabric nodes can have the same WWPN so we don't bother searching
+	 * by WWPN.  Just return the ndlp that was given to us.
+	 */
+	if (ndlp->nlp_type & NLP_FABRIC)
+		return ndlp;
 
 	lp = (uint32_t *) prsp->virt;
 	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
···
 						mempool_free(mbox,
 						     phba->mbox_mem_pool);
 						lpfc_disc_flush_list(phba);
-						psli->ring[(psli->ip_ring)].
+						psli->ring[(psli->extra_ring)].
 						    flag &=
 						    ~LPFC_STOP_IOCB_EVENT;
 						psli->ring[(psli->fcp_ring)].
···
 	IOCB_t *irsp;
 	struct lpfc_nodelist *ndlp;
 	LPFC_MBOXQ_t *mbox = NULL;
+	struct lpfc_dmabuf *mp;
 
 	irsp = &rspiocb->iocb;
 
···
 	/* Check to see if link went down during discovery */
 	if ((lpfc_els_chk_latt(phba)) || !ndlp) {
 		if (mbox) {
+			mp = (struct lpfc_dmabuf *) mbox->context1;
+			if (mp) {
+				lpfc_mbuf_free(phba, mp->virt, mp->phys);
+				kfree(mp);
+			}
 			mempool_free( mbox, phba->mbox_mem_pool);
 		}
 		goto out;
···
 			}
 			/* NOTE: we should have messages for unsuccessful
 			   reglogin */
-			mempool_free( mbox, phba->mbox_mem_pool);
 		} else {
-			mempool_free( mbox, phba->mbox_mem_pool);
 			/* Do not call NO_LIST for lpfc_els_abort'ed ELS cmds */
 			if (!((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 			      ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
···
 				}
 			}
 		}
+		mp = (struct lpfc_dmabuf *) mbox->context1;
+		if (mp) {
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+		}
+		mempool_free(mbox, phba->mbox_mem_pool);
 	}
 out:
 	if (ndlp) {
···
 			ndlp->nlp_type |= NLP_FABRIC;
 			ndlp->nlp_prev_state = ndlp->nlp_state;
 			ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
 			lpfc_issue_els_plogi(phba, NameServer_DID, 0);
 			/* Wait for NameServer login cmpl before we can
 			   continue */
···
 	/* FARP-REQ received from DID <did> */
 	lpfc_printf_log(phba,
 			 KERN_INFO,
-			 LOG_IP,
+			 LOG_ELS,
 			 "%d:0601 FARP-REQ received from DID x%x\n",
 			 phba->brd_no, did);
 
···
 	/* FARP-RSP received from DID <did> */
 	lpfc_printf_log(phba,
 			 KERN_INFO,
-			 LOG_IP,
+			 LOG_ELS,
 			 "%d:0600 FARP-RSP received from DID x%x\n",
 			 phba->brd_no, did);
 

drivers/scsi/lpfc/lpfc_hbadisc.c

···
 	psli = &phba->sli;
 	mb = &pmb->mb;
 	/* Since we don't do discovery right now, turn these off here */
-	psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
+	psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 	psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 	psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 
···
 	if (rc == MBX_NOT_FINISHED) {
 		mempool_free(pmb, phba->mbox_mem_pool);
 		lpfc_disc_flush_list(phba);
-		psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
+		psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		phba->hba_state = LPFC_HBA_READY;
···
 
 	memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 	       sizeof (struct serv_parm));
+	if (phba->cfg_soft_wwnn)
+		u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
 	if (phba->cfg_soft_wwpn)
 		u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 	memcpy((uint8_t *) & phba->fc_nodename,
···
 		    == MBX_NOT_FINISHED) {
 			mempool_free( pmb, phba->mbox_mem_pool);
 			lpfc_disc_flush_list(phba);
-			psli->ring[(psli->ip_ring)].flag &=
+			psli->ring[(psli->extra_ring)].flag &=
 			    ~LPFC_STOP_IOCB_EVENT;
 			psli->ring[(psli->fcp_ring)].flag &=
 			    ~LPFC_STOP_IOCB_EVENT;
···
 {
 	int i;
 	LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
+	struct lpfc_dmabuf *mp;
+	int rc;
+
 	sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 
···
 	if (sparam_mbox) {
 		lpfc_read_sparam(phba, sparam_mbox);
 		sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
-		lpfc_sli_issue_mbox(phba, sparam_mbox,
+		rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
 						(MBX_NOWAIT | MBX_STOP_IOCB));
+		if (rc == MBX_NOT_FINISHED) {
+			mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+			mempool_free(sparam_mbox, phba->mbox_mem_pool);
+			if (cfglink_mbox)
+				mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+			return;
+		}
 	}
 
 	if (cfglink_mbox) {
 		phba->hba_state = LPFC_LOCAL_CFG_LINK;
 		lpfc_config_link(phba, cfglink_mbox);
 		cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
-		lpfc_sli_issue_mbox(phba, cfglink_mbox,
+		rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
 						(MBX_NOWAIT | MBX_STOP_IOCB));
+		if (rc == MBX_NOT_FINISHED)
+			mempool_free(cfglink_mbox, phba->mbox_mem_pool);
 	}
 }
 
···
 		lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
 		lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
 		lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
+		lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
 	}
 
 	phba->fc_ns_retry = 0;
···
 			if (iocb->context1 == (uint8_t *) ndlp)
 				return 1;
 		}
-	} else if (pring->ringno == psli->ip_ring) {
+	} else if (pring->ringno == psli->extra_ring) {
 
 	} else if (pring->ringno == psli->fcp_ring) {
 		/* Skip match check if waiting to relogin to FCP target */
···
 struct lpfc_nodelist *
 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
 {
-	struct lpfc_nodelist *ndlp, *next_ndlp;
+	struct lpfc_nodelist *ndlp;
+	struct list_head *lists[]={&phba->fc_nlpunmap_list,
+				   &phba->fc_nlpmap_list,
+				   &phba->fc_plogi_list,
+				   &phba->fc_adisc_list,
+				   &phba->fc_reglogin_list,
+				   &phba->fc_prli_list,
+				   &phba->fc_npr_list,
+				   &phba->fc_unused_list};
+	uint32_t search[]={NLP_SEARCH_UNMAPPED,
+			   NLP_SEARCH_MAPPED,
+			   NLP_SEARCH_PLOGI,
+			   NLP_SEARCH_ADISC,
+			   NLP_SEARCH_REGLOGIN,
+			   NLP_SEARCH_PRLI,
+			   NLP_SEARCH_NPR,
+			   NLP_SEARCH_UNUSED};
+	int i;
 	uint32_t data1;
 
 	spin_lock_irq(phba->host->host_lock);
-	if (order & NLP_SEARCH_UNMAPPED) {
-		list_for_each_entry_safe(ndlp, next_ndlp,
-					 &phba->fc_nlpunmap_list, nlp_listp) {
+	for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
+		if (!(order & search[i]))
+			continue;
+		list_for_each_entry(ndlp, lists[i], nlp_listp) {
 			if (lpfc_matchdid(phba, ndlp, did)) {
 				data1 = (((uint32_t) ndlp->nlp_state << 24) |
 					 ((uint32_t) ndlp->nlp_xri << 16) |
 					 ((uint32_t) ndlp->nlp_type << 8) |
 					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* FIND node DID unmapped */
 				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0929 FIND node DID unmapped"
+						"%d:0929 FIND node DID "
 						" Data: x%p x%x x%x x%x\n",
 						phba->brd_no,
 						ndlp, ndlp->nlp_DID,
···
 			}
 		}
 	}
-
-	if (order & NLP_SEARCH_MAPPED) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* FIND node DID mapped */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0930 FIND node DID mapped "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_PLOGI) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to PLOGI */
-				/* FIND node DID plogi */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0908 FIND node DID plogi "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_ADISC) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to ADISC */
-				/* FIND node DID adisc */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0931 FIND node DID adisc "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_REGLOGIN) {
-		list_for_each_entry_safe(ndlp, next_ndlp,
-					 &phba->fc_reglogin_list, nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to REGLOGIN */
-				/* FIND node DID reglogin */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0901 FIND node DID reglogin"
-						" Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_PRLI) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to PRLI */
-				/* FIND node DID prli */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0902 FIND node DID prli "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_NPR) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to NPR */
-				/* FIND node DID npr */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0903 FIND node DID npr "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
-	if (order & NLP_SEARCH_UNUSED) {
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
-					nlp_listp) {
-			if (lpfc_matchdid(phba, ndlp, did)) {
-
-				data1 = (((uint32_t) ndlp->nlp_state << 24) |
-					 ((uint32_t) ndlp->nlp_xri << 16) |
-					 ((uint32_t) ndlp->nlp_type << 8) |
-					 ((uint32_t) ndlp->nlp_rpi & 0xff));
-				/* LOG change to UNUSED */
-				/* FIND node DID unused */
-				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0905 FIND node DID unused "
-						"Data: x%p x%x x%x x%x\n",
-						phba->brd_no,
-						ndlp, ndlp->nlp_DID,
-						ndlp->nlp_flag, data1);
-				spin_unlock_irq(phba->host->host_lock);
-				return ndlp;
-			}
-		}
-	}
-
 	spin_unlock_irq(phba->host->host_lock);
 
 	/* FIND node did <did> NOT FOUND */
-	lpfc_printf_log(phba,
-			KERN_INFO,
-			LOG_NODE,
+	lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
 			"%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
 			phba->brd_no, did, order);
-
-	/* no match found */
 	return NULL;
 }
 
···
 			if (rc == MBX_NOT_FINISHED) {
 				mempool_free( mbox, phba->mbox_mem_pool);
 				lpfc_disc_flush_list(phba);
-				psli->ring[(psli->ip_ring)].flag &=
+				psli->ring[(psli->extra_ring)].flag &=
 					~LPFC_STOP_IOCB_EVENT;
 				psli->ring[(psli->fcp_ring)].flag &=
 					~LPFC_STOP_IOCB_EVENT;
···
 
 	if (clrlaerr) {
 		lpfc_disc_flush_list(phba);
-		psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
+		psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 		phba->hba_state = LPFC_HBA_READY;

drivers/scsi/lpfc/lpfc_hw.h

···
 #define FCELSSIZE             1024	/* maximum ELS transfer size */
 
 #define LPFC_FCP_RING            0	/* ring 0 for FCP initiator commands */
-#define LPFC_IP_RING             1	/* ring 1 for IP commands */
+#define LPFC_EXTRA_RING          1	/* ring 1 for other protocols */
 #define LPFC_ELS_RING            2	/* ring 2 for ELS commands */
 #define LPFC_FCP_NEXT_RING       3
 
 #define SLI2_IOCB_CMD_R0_ENTRIES    172	/* SLI-2 FCP command ring entries */
 #define SLI2_IOCB_RSP_R0_ENTRIES    134	/* SLI-2 FCP response ring entries */
-#define SLI2_IOCB_CMD_R1_ENTRIES      4	/* SLI-2 IP command ring entries */
-#define SLI2_IOCB_RSP_R1_ENTRIES      4	/* SLI-2 IP response ring entries */
+#define SLI2_IOCB_CMD_R1_ENTRIES      4	/* SLI-2 extra command ring entries */
+#define SLI2_IOCB_RSP_R1_ENTRIES      4	/* SLI-2 extra response ring entries */
 #define SLI2_IOCB_CMD_R1XTRA_ENTRIES 36	/* SLI-2 extra FCP cmd ring entries */
 #define SLI2_IOCB_RSP_R1XTRA_ENTRIES 52	/* SLI-2 extra FCP rsp ring entries */
 #define SLI2_IOCB_CMD_R2_ENTRIES     20	/* SLI-2 ELS command ring entries */
···
 
 			uint32_t rsvd[7];
 		} rft;
+		struct rff {
+			uint32_t PortId;
+			uint8_t reserved[2];
+#ifdef __BIG_ENDIAN_BITFIELD
+			uint8_t feature_res:6;
+			uint8_t feature_init:1;
+			uint8_t feature_tgt:1;
+#else  /*  __LITTLE_ENDIAN_BITFIELD */
+			uint8_t feature_tgt:1;
+			uint8_t feature_init:1;
+			uint8_t feature_res:6;
+#endif
+			uint8_t type_code;     /* type=8 for FCP */
+		} rff;
 		struct rnn {
 			uint32_t PortId;	/* For RNN_ID requests */
 			uint8_t wwnn[8];
···
 #define  SLI_CT_REVISION        1
 #define  GID_REQUEST_SZ         (sizeof(struct lpfc_sli_ct_request) - 260)
 #define  RFT_REQUEST_SZ         (sizeof(struct lpfc_sli_ct_request) - 228)
+#define  RFF_REQUEST_SZ         (sizeof(struct lpfc_sli_ct_request) - 235)
 #define  RNN_REQUEST_SZ         (sizeof(struct lpfc_sli_ct_request) - 252)
 #define  RSNN_REQUEST_SZ        (sizeof(struct lpfc_sli_ct_request))
 
···
 #define  SLI_CTNS_RNN_ID      0x0213
 #define  SLI_CTNS_RCS_ID      0x0214
 #define  SLI_CTNS_RFT_ID      0x0217
+#define  SLI_CTNS_RFF_ID      0x021F
 #define  SLI_CTNS_RSPN_ID     0x0218
 #define  SLI_CTNS_RPT_ID      0x021A
 #define  SLI_CTNS_RIP_NN      0x0235
···
 #define PCI_DEVICE_ID_ZEPHYR_SCSP   0xfe11
 #define PCI_DEVICE_ID_ZEPHYR_DCSP   0xfe12
 
-#define PCI_SUBSYSTEM_ID_LP11000S      0xfc11
-#define PCI_SUBSYSTEM_ID_LP11002S      0xfc12
-#define PCI_SUBSYSTEM_ID_LPE11000S     0xfc21
-#define PCI_SUBSYSTEM_ID_LPE11002S     0xfc22
-#define PCI_SUBSYSTEM_ID_LPE11010S     0xfc2A
-
 #define JEDEC_ID_ADDRESS            0x0080001c
 #define FIREFLY_JEDEC_ID            0x1ACC
 #define SUPERFLY_JEDEC_ID           0x0020
···
 #define CMD_FCP_IREAD_CX        0x1B
 #define CMD_FCP_ICMND_CR        0x1C
 #define CMD_FCP_ICMND_CX        0x1D
+#define CMD_FCP_TSEND_CX        0x1F
+#define CMD_FCP_TRECEIVE_CX     0x21
+#define CMD_FCP_TRSP_CX	        0x23
+#define CMD_FCP_AUTO_TRSP_CX    0x29
 
 #define CMD_ADAPTER_MSG         0x20
 #define CMD_ADAPTER_DUMP        0x22
···
 #define CMD_FCP_IREAD64_CX      0x9B
 #define CMD_FCP_ICMND64_CR      0x9C
 #define CMD_FCP_ICMND64_CX      0x9D
+#define CMD_FCP_TSEND64_CX      0x9F
+#define CMD_FCP_TRECEIVE64_CX   0xA1
+#define CMD_FCP_TRSP64_CX       0xA3
 
 #define CMD_GEN_REQUEST64_CR    0xC2
 #define CMD_GEN_REQUEST64_CX    0xC3

drivers/scsi/lpfc/lpfc_init.c

···
 	kfree(mp);
 	pmb->context1 = NULL;
 
+	if (phba->cfg_soft_wwnn)
+		u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
 	if (phba->cfg_soft_wwpn)
 		u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 	memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
···
 	phba->hba_state = LPFC_LINK_DOWN;
 
 	/* Only process IOCBs on ring 0 till hba_state is READY */
-	if (psli->ring[psli->ip_ring].cmdringaddr)
-		psli->ring[psli->ip_ring].flag |= LPFC_STOP_IOCB_EVENT;
+	if (psli->ring[psli->extra_ring].cmdringaddr)
+		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 	if (psli->ring[psli->fcp_ring].cmdringaddr)
 		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 	if (psli->ring[psli->next_ring].cmdringaddr)
···
 	struct lpfc_sli_ring  *pring;
 	uint32_t event_data;
 
-	if (phba->work_hs & HS_FFER6) {
+	if (phba->work_hs & HS_FFER6 ||
+	    phba->work_hs & HS_FFER5) {
 		/* Re-establishing Link */
 		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
 				"%d:1301 Re-establishing Link "
···
 	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
 	rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 	if (rc == MBX_NOT_FINISHED)
-		goto lpfc_handle_latt_free_mp;
+		goto lpfc_handle_latt_free_mbuf;
 
 	/* Clear Link Attention in HA REG */
 	spin_lock_irq(phba->host->host_lock);
···
 
 	return;
 
+lpfc_handle_latt_free_mbuf:
+	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 lpfc_handle_latt_free_mp:
 	kfree(mp);
 lpfc_handle_latt_free_pmb:
···
 {
 	lpfc_vpd_t *vp;
 	uint16_t dev_id = phba->pcidev->device;
-	uint16_t dev_subid = phba->pcidev->subsystem_device;
-	uint8_t hdrtype;
 	int max_speed;
-	char * ports;
 	struct {
 		char * name;
 		int    max_speed;
-		char * ports;
 		char * bus;
-	} m = {"<Unknown>", 0, "", ""};
+	} m = {"<Unknown>", 0, ""};
 
-	pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
-	ports = (hdrtype == 0x80) ? "2-port " : "";
 	if (mdp && mdp[0] != '\0'
 		&& descp && descp[0] != '\0')
 		return;
···
 
 	switch (dev_id) {
 	case PCI_DEVICE_ID_FIREFLY:
-		m = (typeof(m)){"LP6000", max_speed, "", "PCI"};
+		m = (typeof(m)){"LP6000", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_SUPERFLY:
 		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
-			m = (typeof(m)){"LP7000", max_speed, "", "PCI"};
+			m = (typeof(m)){"LP7000", max_speed,  "PCI"};
 		else
-			m = (typeof(m)){"LP7000E", max_speed, "", "PCI"};
+			m = (typeof(m)){"LP7000E", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_DRAGONFLY:
-		m = (typeof(m)){"LP8000", max_speed, "", "PCI"};
+		m = (typeof(m)){"LP8000", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_CENTAUR:
 		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
-			m = (typeof(m)){"LP9002", max_speed, "", "PCI"};
+			m = (typeof(m)){"LP9002", max_speed, "PCI"};
 		else
-			m = (typeof(m)){"LP9000", max_speed, "", "PCI"};
+			m = (typeof(m)){"LP9000", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_RFLY:
-		m = (typeof(m)){"LP952", max_speed, "", "PCI"};
+		m = (typeof(m)){"LP952", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_PEGASUS:
-		m = (typeof(m)){"LP9802", max_speed, "", "PCI-X"};
+		m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_THOR:
-		if (hdrtype == 0x80)
-			m = (typeof(m)){"LP10000DC",
-					max_speed, ports, "PCI-X"};
-		else
-			m = (typeof(m)){"LP10000",
-					max_speed, ports, "PCI-X"};
+		m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_VIPER:
-		m = (typeof(m)){"LPX1000", max_speed, "", "PCI-X"};
+		m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_PFLY:
-		m = (typeof(m)){"LP982", max_speed, "", "PCI-X"};
+		m = (typeof(m)){"LP982", max_speed, "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_TFLY:
-		if (hdrtype == 0x80)
-			m = (typeof(m)){"LP1050DC", max_speed, ports, "PCI-X"};
-		else
-			m = (typeof(m)){"LP1050", max_speed, ports, "PCI-X"};
+		m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_HELIOS:
-		if (hdrtype == 0x80)
-			m = (typeof(m)){"LP11002", max_speed, ports, "PCI-X2"};
-		else
-			m = (typeof(m)){"LP11000", max_speed, ports, "PCI-X2"};
+		m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
 		break;
 	case PCI_DEVICE_ID_HELIOS_SCSP:
-		m = (typeof(m)){"LP11000-SP", max_speed, ports, "PCI-X2"};
+		m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
 		break;
 	case PCI_DEVICE_ID_HELIOS_DCSP:
-		m = (typeof(m)){"LP11002-SP", max_speed, ports, "PCI-X2"};
+		m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
 		break;
 	case PCI_DEVICE_ID_NEPTUNE:
-		if (hdrtype == 0x80)
-			m = (typeof(m)){"LPe1002", max_speed, ports, "PCIe"};
-		else
-			m = (typeof(m)){"LPe1000", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_NEPTUNE_SCSP:
-		m = (typeof(m)){"LPe1000-SP", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_NEPTUNE_DCSP:
-		m = (typeof(m)){"LPe1002-SP", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_BMID:
-		m = (typeof(m)){"LP1150", max_speed, ports, "PCI-X2"};
+		m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
 		break;
 	case PCI_DEVICE_ID_BSMB:
-		m = (typeof(m)){"LP111", max_speed, ports, "PCI-X2"};
+		m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
 		break;
 	case PCI_DEVICE_ID_ZEPHYR:
-		if (hdrtype == 0x80)
-			m = (typeof(m)){"LPe11002", max_speed, ports, "PCIe"};
-		else
-			m = (typeof(m)){"LPe11000", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_ZEPHYR_SCSP:
-		m = (typeof(m)){"LPe11000", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_ZEPHYR_DCSP:
-		m = (typeof(m)){"LPe11002-SP", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_ZMID:
-		m = (typeof(m)){"LPe1150", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_ZSMB:
-		m = (typeof(m)){"LPe111", max_speed, ports, "PCIe"};
+		m = (typeof(m)){"LPe111", max_speed, "PCIe"};
 		break;
 	case PCI_DEVICE_ID_LP101:
-		m = (typeof(m)){"LP101", max_speed, ports, "PCI-X"};
+		m = (typeof(m)){"LP101", max_speed, "PCI-X"};
 		break;
 	case PCI_DEVICE_ID_LP10000S:
-		m = (typeof(m)){"LP10000-S", max_speed, ports, "PCI"};
+		m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
 		break;
 	case PCI_DEVICE_ID_LP11000S:
+		m = (typeof(m)){"LP11000-S", max_speed,
+			"PCI-X2"};
+		break;
 	case PCI_DEVICE_ID_LPE11000S:
-		switch (dev_subid) {
-		case PCI_SUBSYSTEM_ID_LP11000S:
-			m = (typeof(m)){"LP11000-S", max_speed,
-					ports, "PCI-X2"};
-			break;
-		case PCI_SUBSYSTEM_ID_LP11002S:
-			m = (typeof(m)){"LP11002-S", max_speed,
-					ports, "PCI-X2"};
-			break;
-		case PCI_SUBSYSTEM_ID_LPE11000S:
-			m = (typeof(m)){"LPe11000-S", max_speed,
-					ports, "PCIe"};
-			break;
-		case PCI_SUBSYSTEM_ID_LPE11002S:
-			m = (typeof(m)){"LPe11002-S", max_speed,
-					ports, "PCIe"};
-			break;
-		case PCI_SUBSYSTEM_ID_LPE11010S:
-			m = (typeof(m)){"LPe11010-S", max_speed,
-					"10-port ", "PCIe"};
-			break;
-		default:
-			m = (typeof(m)){ NULL };
-			break;
-		}
+		m = (typeof(m)){"LPe11000-S", max_speed,
+			"PCIe"};
 		break;
 	default:
 		m = (typeof(m)){ NULL };
···
 		snprintf(mdp, 79,"%s", m.name);
 	if (descp && descp[0] == '\0')
 		snprintf(descp, 255,
-			 "Emulex %s %dGb %s%s Fibre Channel Adapter",
-			 m.name, m.max_speed, m.ports, m.bus);
+			 "Emulex %s %dGb %s Fibre Channel Adapter",
+			 m.name, m.max_speed, m.bus);
 }
 
 /**************************************************/
···
 	if (error)
 		goto out_remove_host;
 
+	if (phba->cfg_use_msi) {
+		error = pci_enable_msi(phba->pcidev);
+		if (error)
+			lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
+					"Enable MSI failed, continuing with "
+					"IRQ\n", phba->brd_no);
+	}
+
 	error =	request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
 							LPFC_DRIVER_NAME, phba);
 	if (error) {
···
 	lpfc_stop_timer(phba);
 	phba->work_hba_events = 0;
 	free_irq(phba->pcidev->irq, phba);
+	pci_disable_msi(phba->pcidev);
 out_free_sysfs_attr:
 	lpfc_free_sysfs_attr(phba);
 out_remove_host:
···
 
 	/* Release the irq reservation */
 	free_irq(phba->pcidev->irq, phba);
+	pci_disable_msi(phba->pcidev);
 
 	lpfc_cleanup(phba, 0);
 	lpfc_stop_timer(phba);

drivers/scsi/lpfc/lpfc_logmsg.h

···
 #define LOG_NODE                      0x80	/* Node table events */
 #define LOG_MISC                      0x400	/* Miscellaneous events */
 #define LOG_SLI                       0x800	/* SLI events */
-#define LOG_CHK_COND                  0x1000	/* FCP Check condition flag */
+#define LOG_FCP_ERROR                 0x1000	/* log errors, not underruns */
 #define LOG_LIBDFC                    0x2000	/* Libdfc events */
 #define LOG_ALL_MSG                   0xffff	/* LOG all messages */
 

drivers/scsi/lpfc/lpfc_nportdisc.c

···
 			    uint32_t evt)
 {
 	struct lpfc_iocbq *cmdiocb, *rspiocb;
-	struct lpfc_dmabuf *pcmd, *prsp;
+	struct lpfc_dmabuf *pcmd, *prsp, *mp;
 	uint32_t *lp;
 	IOCB_t *irsp;
 	struct serv_parm *sp;
···
 				      NLP_REGLOGIN_LIST);
 			return ndlp->nlp_state;
 		}
+		mp = (struct lpfc_dmabuf *)mbox->context1;
+		lpfc_mbuf_free(phba, mp->virt, mp->phys);
+		kfree(mp);
 		mempool_free(mbox, phba->mbox_mem_pool);
 	} else {
 		mempool_free(mbox, phba->mbox_mem_pool);
···
 	 * or discovery in progress for this node. Starting discovery
 	 * here will affect the counting of discovery threads.
 	 */
-	if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) &&
-		(ndlp->nlp_flag & NLP_NPR_2B_DISC)){
+	if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
+		!(ndlp->nlp_flag & NLP_NPR_2B_DISC)){
 		if (ndlp->nlp_flag & NLP_NPR_ADISC) {
 			ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
 			ndlp->nlp_state = NLP_STE_ADISC_ISSUE;

drivers/scsi/lpfc/lpfc_scsi.c

···
 	uint32_t fcpi_parm = lpfc_cmd->cur_iocbq.iocb.un.fcpi.fcpi_parm;
 	uint32_t resp_info = fcprsp->rspStatus2;
 	uint32_t scsi_status = fcprsp->rspStatus3;
+	uint32_t *lp;
 	uint32_t host_status = DID_OK;
 	uint32_t rsplen = 0;
+	uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
 
 	/*
 	 *  If this is a task management command, there is no
···
 		goto out;
 	}
 
-	lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
-			"%d:0730 FCP command failed: RSP "
-			"Data: x%x x%x x%x x%x x%x x%x\n",
-			phba->brd_no, resp_info, scsi_status,
+	if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) {
+		uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen);
+		if (snslen > SCSI_SENSE_BUFFERSIZE)
+			snslen = SCSI_SENSE_BUFFERSIZE;
+
+		if (resp_info & RSP_LEN_VALID)
+		  rsplen = be32_to_cpu(fcprsp->rspRspLen);
+		memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen);
+	}
+	lp = (uint32_t *)cmnd->sense_buffer;
+
+	if (!scsi_status && (resp_info & RESID_UNDER))
+		logit = LOG_FCP;
+
+	lpfc_printf_log(phba, KERN_WARNING, logit,
+			"%d:0730 FCP command x%x failed: x%x SNS x%x x%x "
+			"Data: x%x x%x x%x x%x x%x\n",
+			phba->brd_no, cmnd->cmnd[0], scsi_status,
+			be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info,
 			be32_to_cpu(fcprsp->rspResId),
 			be32_to_cpu(fcprsp->rspSnsLen),
 			be32_to_cpu(fcprsp->rspRspLen),
···
 			host_status = DID_ERROR;
 			goto out;
 		}
-	}
-
-	if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) {
-		uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen);
-		if (snslen > SCSI_SENSE_BUFFERSIZE)
-			snslen = SCSI_SENSE_BUFFERSIZE;
-
-		memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen);
 	}
 
 	cmnd->resid = 0;
···
 	 */
 	} else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm &&
 			(cmnd->sc_data_direction == DMA_FROM_DEVICE)) {
-		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
 			"%d:0734 FCP Read Check Error Data: "
 			"x%x x%x x%x x%x\n", phba->brd_no,
 			be32_to_cpu(fcpcmd->fcpDl),
···
 	struct lpfc_iocbq *iocbq;
 	struct lpfc_iocbq *iocbqrsp;
 	int ret;
+
+	if (!rdata->pnode)
+		return FAILED;
 
 	lpfc_cmd->rdata = rdata;
 	ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, lun,
···
 
 	lpfc_block_error_handler(cmnd);
 	spin_lock_irq(shost->host_lock);
+	loopcnt = 0;
 	/*
 	 * If target is not in a MAPPED state, delay the reset until
 	 * target is rediscovered or devloss timeout expires.
 	 */
 	while ( 1 ) {
 		if (!pnode)
-			break;
+			return FAILED;
 
 		if (pnode->nlp_state != NLP_STE_MAPPED_NODE) {
 			spin_unlock_irq(phba->host->host_lock);
 			schedule_timeout_uninterruptible(msecs_to_jiffies(500));
 			spin_lock_irq(phba->host->host_lock);
+			loopcnt++;
+			rdata = cmnd->device->hostdata;
+			if (!rdata ||
+				(loopcnt > ((phba->cfg_devloss_tmo * 2) + 1))) {
+				lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
+		   			"%d:0721 LUN Reset rport failure:"
+					" cnt x%x rdata x%p\n",
+		   			phba->brd_no, loopcnt, rdata);
+				goto out;
+			}
+			pnode = rdata->pnode;
+			if (!pnode)
+				return FAILED;
 		}
-		if ((pnode) && (pnode->nlp_state == NLP_STE_MAPPED_NODE))
+		if (pnode->nlp_state == NLP_STE_MAPPED_NODE)
 			break;
 	}
 

drivers/scsi/lpfc/lpfc_sli.c

···
 	case CMD_FCP_IREAD_CX:
 	case CMD_FCP_ICMND_CR:
 	case CMD_FCP_ICMND_CX:
+	case CMD_FCP_TSEND_CX:
+	case CMD_FCP_TRSP_CX:
+	case CMD_FCP_TRECEIVE_CX:
+	case CMD_FCP_AUTO_TRSP_CX:
 	case CMD_ADAPTER_MSG:
 	case CMD_ADAPTER_DUMP:
 	case CMD_XMIT_SEQUENCE64_CR:
···
 	case CMD_FCP_IREAD64_CX:
 	case CMD_FCP_ICMND64_CR:
 	case CMD_FCP_ICMND64_CX:
+	case CMD_FCP_TSEND64_CX:
+	case CMD_FCP_TRSP64_CX:
+	case CMD_FCP_TRECEIVE64_CX:
 	case CMD_GEN_REQUEST64_CR:
 	case CMD_GEN_REQUEST64_CX:
 	case CMD_XMIT_ELS_RSP64_CX:
···
 		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
 				      (uint32_t *) &rspiocbq.iocb,
 				      sizeof (IOCB_t));
+		INIT_LIST_HEAD(&(rspiocbq.list));
 		irsp = &rspiocbq.iocb;
 
 		type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
···
 							  iflag);
 				}
 			}
+			break;
+		case LPFC_UNSOL_IOCB:
+			spin_unlock_irqrestore(phba->host->host_lock, iflag);
+			lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
+			spin_lock_irqsave(phba->host->host_lock, iflag);
 			break;
 		default:
 			if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
···
 	psli = &phba->sli;
 
 	/* Adjust cmd/rsp ring iocb entries more evenly */
+
+	/* Take some away from the FCP ring */
 	pring = &psli->ring[psli->fcp_ring];
 	pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
 	pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
 	pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
 	pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
 
-	pring = &psli->ring[1];
+	/* and give them to the extra ring */
+	pring = &psli->ring[psli->extra_ring];
+
 	pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
 	pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
 	pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
···
 	pring->iotag_max = 4096;
 	pring->num_mask = 1;
 	pring->prt[0].profile = 0;      /* Mask 0 */
-	pring->prt[0].rctl = FC_UNSOL_DATA;
-	pring->prt[0].type = 5;
+	pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
+	pring->prt[0].type = phba->cfg_multi_ring_type;
 	pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
 	return 0;
 }
···
 	psli->sli_flag = 0;
 	psli->fcp_ring = LPFC_FCP_RING;
 	psli->next_ring = LPFC_FCP_NEXT_RING;
-	psli->ip_ring = LPFC_IP_RING;
+	psli->extra_ring = LPFC_EXTRA_RING;
 
 	psli->iocbq_lookup = NULL;
 	psli->iocbq_lookup_len = 0;
···
 			pring->fast_iotag = pring->iotag_max;
 			pring->num_mask = 0;
 			break;
-		case LPFC_IP_RING:	/* ring 1 - IP */
+		case LPFC_EXTRA_RING:	/* ring 1 - EXTRA */
 			/* numCiocb and numRiocb are used in config_port */
 			pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
 			pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
···
 		lpfc_sli_handle_fast_ring_event(phba,
 						&phba->sli.ring[LPFC_FCP_RING],
 						status);
+
+	if (phba->cfg_multi_ring_support == 2) {
+		/*
+		 * Process all events on extra ring.  Take the optimized path
+		 * for extra ring IO.  Any other IO is slow path and is handled
+		 * by the worker thread.
+		 */
+		status = (ha_copy & (HA_RXMASK  << (4*LPFC_EXTRA_RING)));
+		status >>= (4*LPFC_EXTRA_RING);
+		if (status & HA_RXATT) {
+			lpfc_sli_handle_fast_ring_event(phba,
+					&phba->sli.ring[LPFC_EXTRA_RING],
+					status);
+		}
+	}
 	return IRQ_HANDLED;
 
 } /* lpfc_intr_handler */

drivers/scsi/lpfc/lpfc_sli.h

···
 	int fcp_ring;		/* ring used for FCP initiator commands */
 	int next_ring;
 
-	int ip_ring;		/* ring used for IP network drv cmds */
+	int extra_ring;		/* extra ring used for other protocols */
 
 	struct lpfc_sli_stat slistat;	/* SLI statistical info */
 	struct list_head mboxq;

drivers/scsi/lpfc/lpfc_version.h

···
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.1.10"
+#define LPFC_DRIVER_VERSION "8.1.11"
 
 #define LPFC_DRIVER_NAME "lpfc"
 

drivers/scsi/megaraid.c

···
 module_param(max_mbox_busy_wait, ushort, 0);
 MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
 
-#define RDINDOOR(adapter)		readl((adapter)->base + 0x20)
-#define RDOUTDOOR(adapter)		readl((adapter)->base + 0x2C)
-#define WRINDOOR(adapter,value)		writel(value, (adapter)->base + 0x20)
-#define WROUTDOOR(adapter,value)	writel(value, (adapter)->base + 0x2C)
+#define RDINDOOR(adapter)	readl((adapter)->mmio_base + 0x20)
+#define RDOUTDOOR(adapter)	readl((adapter)->mmio_base + 0x2C)
+#define WRINDOOR(adapter,value)	 writel(value, (adapter)->mmio_base + 0x20)
+#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
 
 /*
  * Global variables
···
 
 		handled = 1;
 
-		while( RDINDOOR(adapter) & 0x02 ) cpu_relax();
+		while( RDINDOOR(adapter) & 0x02 )
+			cpu_relax();
 
 		mega_cmd_done(adapter, completed, nstatus, status);
 
···
 		host->host_no, mega_baseport, irq);
 
 	adapter->base = mega_baseport;
+	if (flag & BOARD_MEMMAP)
+		adapter->mmio_base = (void __iomem *) mega_baseport;
 
 	INIT_LIST_HEAD(&adapter->free_list);
 	INIT_LIST_HEAD(&adapter->pending_list);

drivers/scsi/megaraid.h

···
 				   clustering is available */
 	u32	flag;
 
-	unsigned long	base;
+	unsigned long		base;
+	void __iomem		*mmio_base;
 
 	/* mbox64 with mbox not aligned on 16-byte boundry */
 	mbox64_t	*una_mbox64;

drivers/scsi/megaraid/megaraid_sas.c

···
  * Returns the number of frames required for numnber of sge's (sge_count)
  */
 
-u32 megasas_get_frame_count(u8 sge_count)
+static u32 megasas_get_frame_count(u8 sge_count)
 {
 	int num_cnt;
 	int sge_bytes;
···
  *
  * Tasklet to complete cmds
  */
-void megasas_complete_cmd_dpc(unsigned long instance_addr)
+static void megasas_complete_cmd_dpc(unsigned long instance_addr)
 {
 	u32 producer;
 	u32 consumer;

drivers/scsi/ncr53c8xx.c

···
 static struct ncr_driver_setup
 	driver_setup			= SCSI_NCR_DRIVER_SETUP;
 
+#ifndef MODULE
 #ifdef	SCSI_NCR_BOOT_COMMAND_LINE_SUPPORT
 static struct ncr_driver_setup
 	driver_safe_setup __initdata	= SCSI_NCR_DRIVER_SAFE_SETUP;
 #endif
+#endif /* !MODULE */
 
 #define initverbose (driver_setup.verbose)
 #define bootverbose (np->verbose)
···
 #define OPT_IARB		26
 #endif
 
+#ifdef MODULE
+#define	ARG_SEP	' '
+#else
+#define	ARG_SEP	','
+#endif
+
+#ifndef MODULE
 static char setup_token[] __initdata = 
 	"tags:"   "mpar:"
 	"spar:"   "disc:"
···
 #endif
 	;	/* DONNOT REMOVE THIS ';' */
 
-#ifdef MODULE
-#define	ARG_SEP	' '
-#else
-#define	ARG_SEP	','
-#endif
-
 static int __init get_setup_token(char *p)
 {
 	char *cur = setup_token;
···
 	}
 	return 0;
 }
-
 
 static int __init sym53c8xx__setup(char *str)
 {
···
 #endif /* SCSI_NCR_BOOT_COMMAND_LINE_SUPPORT */
 	return 1;
 }
+#endif /* !MODULE */
 
 /*===================================================================
 **
···
 module_param(ncr53c8xx, charp, 0);
 #endif
 
+#ifndef MODULE
 static int __init ncr53c8xx_setup(char *str)
 {
 	return sym53c8xx__setup(str);
 }
 
-#ifndef MODULE
 __setup("ncr53c8xx=", ncr53c8xx_setup);
 #endif
 

drivers/scsi/qla2xxx/qla_attr.c

···
 	{ "optrom_ctl", &sysfs_optrom_ctl_attr, },
 	{ "vpd", &sysfs_vpd_attr, 1 },
 	{ "sfp", &sysfs_sfp_attr, 1 },
-	{ 0 },
+	{ NULL },
 };
 
 void

drivers/scsi/qla2xxx/qla_init.c

···
 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
 {
 	int	rval;
-	uint8_t	restart_risc = 0;
-	uint8_t	retry;
-	uint32_t wait_time;
 
 	/* Clear adapter flags. */
 	ha->flags.online = 0;
···
 
 	qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 
-	retry = 10;
-	/*
-	 * Try to configure the loop.
-	 */
-	do {
-		restart_risc = 0;
-
-		/* If firmware needs to be loaded */
-		if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
-			if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
-				rval = qla2x00_setup_chip(ha);
-			}
-		}
-
-		if (rval == QLA_SUCCESS &&
-		    (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
-check_fw_ready_again:
-			/*
-			 * Wait for a successful LIP up to a maximum
-			 * of (in seconds): RISC login timeout value,
-			 * RISC retry count value, and port down retry
-			 * value OR a minimum of 4 seconds OR If no
-			 * cable, only 5 seconds.
-			 */
-			rval = qla2x00_fw_ready(ha);
-			if (rval == QLA_SUCCESS) {
-				clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
-
-				/* Issue a marker after FW becomes ready. */
-				qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
-
-				/*
-				 * Wait at most MAX_TARGET RSCNs for a stable
-				 * link.
-				 */
-				wait_time = 256;
-				do {
-					clear_bit(LOOP_RESYNC_NEEDED,
-					    &ha->dpc_flags);
-					rval = qla2x00_configure_loop(ha);
-
-					if (test_and_clear_bit(ISP_ABORT_NEEDED,
-					    &ha->dpc_flags)) {
-						restart_risc = 1;
-						break;
-					}
-
-					/*
-					 * If loop state change while we were
-					 * discoverying devices then wait for
-					 * LIP to complete
-					 */
-
-					if (atomic_read(&ha->loop_state) !=
-					    LOOP_READY && retry--) {
-						goto check_fw_ready_again;
-					}
-					wait_time--;
-				} while (!atomic_read(&ha->loop_down_timer) &&
-				    retry &&
-				    wait_time &&
-				    (test_bit(LOOP_RESYNC_NEEDED,
-					&ha->dpc_flags)));
-
-				if (wait_time == 0)
-					rval = QLA_FUNCTION_FAILED;
-			} else if (ha->device_flags & DFLG_NO_CABLE)
-				/* If no cable, then all is good. */
-				rval = QLA_SUCCESS;
-		}
-	} while (restart_risc && retry--);
-
-	if (rval == QLA_SUCCESS) {
-		clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
-		qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
-		ha->marker_needed = 0;
-
-		ha->flags.online = 1;
-	} else {
-		DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
+	if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
+		rval = ha->isp_ops.chip_diag(ha);
+		if (rval)
+			return (rval);
+		rval = qla2x00_setup_chip(ha);
+		if (rval)
+			return (rval);
 	}
+	rval = qla2x00_init_rings(ha);
 
 	return (rval);
 }
···
 
 	atomic_set(&fcport->state, FCS_ONLINE);
 
-	if (ha->flags.init_done)
-		qla2x00_reg_remote_port(ha, fcport);
+	qla2x00_reg_remote_port(ha, fcport);
 }
 
 void

drivers/scsi/qla2xxx/qla_os.c

···
  */
 static int qla2xxx_slave_configure(struct scsi_device * device);
 static int qla2xxx_slave_alloc(struct scsi_device *);
+static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
+static void qla2xxx_scan_start(struct Scsi_Host *);
 static void qla2xxx_slave_destroy(struct scsi_device *);
 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
 		void (*fn)(struct scsi_cmnd *));
···
 
 	.slave_alloc		= qla2xxx_slave_alloc,
 	.slave_destroy		= qla2xxx_slave_destroy,
+	.scan_finished		= qla2xxx_scan_finished,
+	.scan_start		= qla2xxx_scan_start,
 	.change_queue_depth	= qla2x00_change_queue_depth,
 	.change_queue_type	= qla2x00_change_queue_type,
 	.this_id		= -1,
···
 	return str;
 }
 
-char *
+static char *
 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
 {
 	char un_str[10];
···
 	return (str);
 }
 
-char *
+static char *
 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
 {
 	sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
···
 * Note:
 *    Only return FAILED if command not returned by firmware.
 **************************************************************************/
-int
+static int
 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
···
 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 *
 **************************************************************************/
-int
+static int
 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
···
 *    SUCCESS/FAILURE (defined as macro in scsi.h).
 *
 **************************************************************************/
-int
+static int
 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
···
 *
 * Note:
 **************************************************************************/
-int
+static int
 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
···
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
 
+static void
+qla2xxx_scan_start(struct Scsi_Host *shost)
+{
+	scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
+
+	set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
+	set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
+	set_bit(RSCN_UPDATE, &ha->dpc_flags);
+}
+
+static int
+qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+	scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
+
+	if (!ha->host)
+		return 1;
+	if (time > ha->loop_reset_delay * HZ)
+		return 1;
+
+	return atomic_read(&ha->loop_state) == LOOP_READY;
+}
+
 /*
  * PCI driver interface
  */
···
 	struct Scsi_Host *host;
 	scsi_qla_host_t *ha;
 	unsigned long	flags = 0;
-	unsigned long	wait_switch = 0;
 	char pci_info[20];
 	char fw_str[30];
-	fc_port_t *fcport;
 	struct scsi_host_template *sht;
 
 	if (pci_enable_device(pdev))
···
 
 	ha->isp_ops.enable_intrs(ha);
 
-	/* v2.19.5b6 */
-	/*
-	 * Wait around max loop_reset_delay secs for the devices to come
-	 * on-line. We don't want Linux scanning before we are ready.
-	 *
-	 */
-	for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
-	    time_before(jiffies,wait_switch) &&
-	     !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
-	     && (ha->device_flags & SWITCH_FOUND) ;) {
-
-		qla2x00_check_fabric_devices(ha);
-
-		msleep(10);
-	}
-
 	pci_set_drvdata(pdev, ha);
+
 	ha->flags.init_done = 1;
+	ha->flags.online = 1;
+
 	num_hosts++;
 
 	ret = scsi_add_host(host, &pdev->dev);
 	if (ret)
 		goto probe_failed;
+
+	scsi_scan_host(host);
 
 	qla2x00_alloc_sysfs_attr(ha);
 
···
 	    ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
 	    ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
 	    ha->isp_ops.fw_version_str(ha, fw_str));
-
-	/* Go with fc_rport registration. */
-	list_for_each_entry(fcport, &ha->fcports, list)
-		qla2x00_reg_remote_port(ha, fcport);
 
 	return 0;
 

drivers/scsi/qla2xxx/qla_sup.c

···
 	return FARX_ACCESS_NVRAM_DATA | naddr;
 }
 
-uint32_t
+static uint32_t
 qla24xx_read_flash_dword(scsi_qla_host_t *ha, uint32_t addr)
 {
 	int rval;
···
 	return dwptr;
 }
 
-int
+static int
 qla24xx_write_flash_dword(scsi_qla_host_t *ha, uint32_t addr, uint32_t data)
 {
 	int rval;
···
 	return rval;
 }
 
-void
+static void
 qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
     uint8_t *flash_id)
 {
···
 	}
 }
 
-int
+static int
 qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
     uint32_t dwords)
 {

drivers/scsi/qla4xxx/ql4_dbg.c

···
 		       readw(&ha->reg->u1.isp4010.nvram));
 	}
 
-	else if (is_qla4022(ha)) {
+	else if (is_qla4022(ha) | is_qla4032(ha)) {
 		printk(KERN_INFO "0x%02X intr_mask	 = 0x%08X\n",
 		       (uint8_t) offsetof(struct isp_reg,
 					  u1.isp4022.intr_mask),
···
 		       readw(&ha->reg->u2.isp4010.port_err_status));
 	}
 
-	else if (is_qla4022(ha)) {
+	else if (is_qla4022(ha) | is_qla4032(ha)) {
 		printk(KERN_INFO "Page 0 Registers:\n");
 		printk(KERN_INFO "0x%02X ext_hw_conf	 = 0x%08X\n",
 		       (uint8_t) offsetof(struct isp_reg,

drivers/scsi/qla4xxx/ql4_def.h

···
 
 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4022
 #define PCI_DEVICE_ID_QLOGIC_ISP4022	0x4022
-#endif				/*  */
+#endif
+
+#ifndef PCI_DEVICE_ID_QLOGIC_ISP4032
+#define PCI_DEVICE_ID_QLOGIC_ISP4032	0x4032
+#endif
 
 #define QLA_SUCCESS			0
 #define QLA_ERROR			1
···
 #define AF_INTERRUPTS_ON	      6 /* 0x00000040 Not Used */
 #define AF_GET_CRASH_RECORD	      7 /* 0x00000080 */
 #define AF_LINK_UP		      8 /* 0x00000100 */
-#define AF_TOPCAT_CHIP_PRESENT	      9 /* 0x00000200 */
 #define AF_IRQ_ATTACHED		     10 /* 0x00000400 */
 #define AF_ISNS_CMD_IN_PROCESS	     12 /* 0x00001000 */
 #define AF_ISNS_CMD_DONE	     13 /* 0x00002000 */
···
 	/* NVRAM registers */
 	struct eeprom_data *nvram;
 	spinlock_t hardware_lock ____cacheline_aligned;
-	spinlock_t list_lock;
 	uint32_t   eeprom_cmd_data;
 
 	/* Counters for general statistics */
+	uint64_t isr_count;
 	uint64_t adapter_error_count;
 	uint64_t device_error_count;
 	uint64_t total_io_count;
 	uint64_t total_mbytes_xferred;
 	uint64_t link_failure_count;
 	uint64_t invalid_crc_count;
+	uint32_t bytes_xfered;
 	uint32_t spurious_int_count;
 	uint32_t aborted_io_count;
 	uint32_t io_timeout_count;
···
 	return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
 }
 
+static inline int is_qla4032(struct scsi_qla_host *ha)
+{
+	return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
+}
+
 static inline int adapter_up(struct scsi_qla_host *ha)
 {
 	return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
···
 
 static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u1.isp4022.semaphore :
-		&ha->reg->u1.isp4010.nvram);
+	return (is_qla4010(ha) ?
+		&ha->reg->u1.isp4010.nvram :
+		&ha->reg->u1.isp4022.semaphore);
 }
 
 static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u1.isp4022.nvram :
-		&ha->reg->u1.isp4010.nvram);
+	return (is_qla4010(ha) ?
+		&ha->reg->u1.isp4010.nvram :
+		&ha->reg->u1.isp4022.nvram);
 }
 
 static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u2.isp4022.p0.ext_hw_conf :
-		&ha->reg->u2.isp4010.ext_hw_conf);
+	return (is_qla4010(ha) ?
+		&ha->reg->u2.isp4010.ext_hw_conf :
+		&ha->reg->u2.isp4022.p0.ext_hw_conf);
 }
 
 static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u2.isp4022.p0.port_status :
-		&ha->reg->u2.isp4010.port_status);
+	return (is_qla4010(ha) ?
+		&ha->reg->u2.isp4010.port_status :
+		&ha->reg->u2.isp4022.p0.port_status);
 }
 
 static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u2.isp4022.p0.port_ctrl :
-		&ha->reg->u2.isp4010.port_ctrl);
+	return (is_qla4010(ha) ?
+		&ha->reg->u2.isp4010.port_ctrl :
+		&ha->reg->u2.isp4022.p0.port_ctrl);
 }
 
 static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u2.isp4022.p0.port_err_status :
-		&ha->reg->u2.isp4010.port_err_status);
+	return (is_qla4010(ha) ?
+		&ha->reg->u2.isp4010.port_err_status :
+		&ha->reg->u2.isp4022.p0.port_err_status);
 }
 
 static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		&ha->reg->u2.isp4022.p0.gp_out :
-		&ha->reg->u2.isp4010.gp_out);
+	return (is_qla4010(ha) ?
+		&ha->reg->u2.isp4010.gp_out :
+		&ha->reg->u2.isp4022.p0.gp_out);
 }
 
 static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
 {
-	return (is_qla4022(ha) ?
-		offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2 :
-		offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2);
+	return (is_qla4010(ha) ?
+		offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
+		offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
 }
 
 int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
···
 
 static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
+	if (is_qla4010(a))
+		return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
+					   QL4010_FLASH_SEM_BITS);
+	else
 		return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
 					   (QL4022_RESOURCE_BITS_BASE_CODE |
 					    (a->mac_index)) << 13);
-	else
-		return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
-					   QL4010_FLASH_SEM_BITS);
 }
 
 static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
-		ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
-	else
+	if (is_qla4010(a))
 		ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
+	else
+		ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
 }
 
 static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
+	if (is_qla4010(a))
+		return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
+					   QL4010_NVRAM_SEM_BITS);
+	else
 		return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
 					   (QL4022_RESOURCE_BITS_BASE_CODE |
 					    (a->mac_index)) << 10);
-	else
-		return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
-					   QL4010_NVRAM_SEM_BITS);
 }
 
 static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
-		ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
-	else
+	if (is_qla4010(a))
 		ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
+	else
+		ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
 }
 
 static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
+	if (is_qla4010(a))
+		return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
+				       QL4010_DRVR_SEM_BITS);
+	else
 		return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
 				       (QL4022_RESOURCE_BITS_BASE_CODE |
 					(a->mac_index)) << 1);
-	else
-		return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
-				       QL4010_DRVR_SEM_BITS);
 }
 
 static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
 {
-	if (is_qla4022(a))
-		ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
-	else
+	if (is_qla4010(a))
 		ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
+	else
+		ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
 }
 
 /*---------------------------------------------------------------------------*/

drivers/scsi/qla4xxx/ql4_fw.h

···
 /*  ISP Semaphore definitions */
 
 /*  ISP General Purpose Output definitions */
-#define GPOR_TOPCAT_RESET			0x00000004
 
 /*  shadow registers (DMA'd from HA to system memory.  read only) */
 struct shadow_regs {
···
 /*  Mailbox command definitions */
 #define MBOX_CMD_ABOUT_FW			0x0009
 #define MBOX_CMD_LUN_RESET			0x0016
+#define MBOX_CMD_GET_MANAGEMENT_DATA		0x001E
 #define MBOX_CMD_GET_FW_STATUS			0x001F
 #define MBOX_CMD_SET_ISNS_SERVICE		0x0021
 #define ISNS_DISABLE				0
 #define ISNS_ENABLE				1
+#define MBOX_CMD_COPY_FLASH			0x0024
+#define MBOX_CMD_WRITE_FLASH			0x0025
 #define MBOX_CMD_READ_FLASH			0x0026
 #define MBOX_CMD_CLEAR_DATABASE_ENTRY		0x0031
 #define MBOX_CMD_CONN_CLOSE_SESS_LOGOUT		0x0056
···
 #define DDB_DS_SESSION_FAILED			0x06
 #define DDB_DS_LOGIN_IN_PROCESS			0x07
 #define MBOX_CMD_GET_FW_STATE			0x0069
+#define MBOX_CMD_GET_INIT_FW_CTRL_BLOCK_DEFAULTS 0x006A
+#define MBOX_CMD_RESTORE_FACTORY_DEFAULTS	0x0087
 
 /* Mailbox 1 */
 #define FW_STATE_READY				0x0000
 #define FW_STATE_CONFIG_WAIT			0x0001
+#define FW_STATE_WAIT_LOGIN			0x0002
 #define FW_STATE_ERROR				0x0004
 #define FW_STATE_DHCP_IN_PROGRESS		0x0008
 

drivers/scsi/qla4xxx/ql4_glbl.h

···
 #ifndef __QLA4x_GBL_H
 #define	__QLA4x_GBL_H
 
+int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a);
 int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port);
 int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb);
 int qla4xxx_initialize_adapter(struct scsi_qla_host * ha,
···
 extern int ql4xextended_error_logging;
 extern int ql4xdiscoverywait;
 extern int ql4xdontresethba;
-#endif				/* _QLA4x_GBL_H */
+#endif /* _QLA4x_GBL_H */

drivers/scsi/qla4xxx/ql4_init.c

···
 			      "seconds expired= %d\n", ha->host_no, __func__,
 			      ha->firmware_state, ha->addl_fw_state,
 			      timeout_count));
+		if (is_qla4032(ha) &&
+			!(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
+			(timeout_count < ADAPTER_INIT_TOV - 5)) {
+			break;
+		}
+
 		msleep(1000);
 	}			/* end of for */
 
-	if (timeout_count <= 0)
+	if (timeout_count == 0)
 		DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
 			      ha->host_no, __func__));
 
···
 	return QLA_SUCCESS;
 }
 
-/**
- * qla4010_get_topcat_presence - check if it is QLA4040 TopCat Chip
- * @ha: Pointer to host adapter structure.
- *
- **/
-static int qla4010_get_topcat_presence(struct scsi_qla_host *ha)
-{
-	unsigned long flags;
-	uint16_t topcat;
-
-	if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS)
-		return QLA_ERROR;
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-	topcat = rd_nvram_word(ha, offsetof(struct eeprom_data,
-					    isp4010.topcat));
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
-	if ((topcat & TOPCAT_MASK) == TOPCAT_PRESENT)
-		set_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags);
-	else
-		clear_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags);
-	ql4xxx_unlock_nvram(ha);
-	return QLA_SUCCESS;
-}
-
-
 static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
 {
 	unsigned long flags;
···
 		/* set defaults */
 		if (is_qla4010(ha))
 			extHwConfig.Asuint32_t = 0x1912;
-		else if (is_qla4022(ha))
+		else if (is_qla4022(ha) | is_qla4032(ha))
 			extHwConfig.Asuint32_t = 0x0023;
 	}
 	DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
···
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	writel(jiffies, &ha->reg->mailbox[7]);
-	if (is_qla4022(ha))
+	if (is_qla4022(ha) | is_qla4032(ha))
 		writel(set_rmask(NVR_WRITE_ENABLE),
 		       &ha->reg->u1.isp4022.nvram);
 
···
 	return status;
 }
 
-static int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
+int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
 {
 #define QL4_LOCK_DRVR_WAIT	300
 #define QL4_LOCK_DRVR_SLEEP	100
···
 	int soft_reset = 1;
 	int config_chip = 0;
 
-	if (is_qla4010(ha)){
-		if (qla4010_get_topcat_presence(ha) != QLA_SUCCESS)
-			return QLA_ERROR;
-	}
-
-	if (is_qla4022(ha))
+	if (is_qla4022(ha) | is_qla4032(ha))
 		ql4xxx_set_mac_number(ha);
 
 	if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)

drivers/scsi/qla4xxx/ql4_inline.h

···
 static inline void
 __qla4xxx_enable_intrs(struct scsi_qla_host *ha)
 {
-	if (is_qla4022(ha)) {
+	if (is_qla4022(ha) | is_qla4032(ha)) {
 		writel(set_rmask(IMR_SCSI_INTR_ENABLE),
 		       &ha->reg->u1.isp4022.intr_mask);
 		readl(&ha->reg->u1.isp4022.intr_mask);
···
 static inline void
 __qla4xxx_disable_intrs(struct scsi_qla_host *ha)
 {
-	if (is_qla4022(ha)) {
+	if (is_qla4022(ha) | is_qla4032(ha)) {
 		writel(clr_rmask(IMR_SCSI_INTR_ENABLE),
 		       &ha->reg->u1.isp4022.intr_mask);
 		readl(&ha->reg->u1.isp4022.intr_mask);

drivers/scsi/qla4xxx/ql4_iocb.c

···
 			cmd_entry->control_flags = CF_WRITE;
 		else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
 			cmd_entry->control_flags = CF_READ;
+
+		ha->bytes_xfered += cmd->request_bufflen;
+		if (ha->bytes_xfered & ~0xFFFFF){
+			ha->total_mbytes_xferred += ha->bytes_xfered >> 20;
+			ha->bytes_xfered &= 0xFFFFF;
+		}
 	}
 
 	/* Set tagged queueing control flags */

drivers/scsi/qla4xxx/ql4_isr.c

···
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 
+	ha->isr_count++;
 	/*
 	 * Repeatedly service interrupts up to a maximum of
 	 * MAX_REQS_SERVICED_PER_INTR

drivers/scsi/qla4xxx/ql4_nvram.c

···
 
 #include "ql4_def.h"
 
+static inline void eeprom_cmd(uint32_t cmd, struct scsi_qla_host *ha)
+{
+	writel(cmd, isp_nvram(ha));
+	readl(isp_nvram(ha));
+	udelay(1);
+}
+
 static inline int eeprom_size(struct scsi_qla_host *ha)
 {
-	return is_qla4022(ha) ? FM93C86A_SIZE_16 : FM93C66A_SIZE_16;
+	return is_qla4010(ha) ? FM93C66A_SIZE_16 : FM93C86A_SIZE_16;
 }
 
 static inline int eeprom_no_addr_bits(struct scsi_qla_host *ha)
 {
-	return is_qla4022(ha) ? FM93C86A_NO_ADDR_BITS_16 :
-		FM93C56A_NO_ADDR_BITS_16;
+	return is_qla4010(ha) ? FM93C56A_NO_ADDR_BITS_16 :
+		FM93C86A_NO_ADDR_BITS_16 ;
 }
 
 static inline int eeprom_no_data_bits(struct scsi_qla_host *ha)
···
 	DEBUG5(printk(KERN_ERR "fm93c56a_select:\n"));
 
 	ha->eeprom_cmd_data = AUBURN_EEPROM_CS_1 | 0x000f0000;
-	writel(ha->eeprom_cmd_data, isp_nvram(ha));
-	readl(isp_nvram(ha));
+	eeprom_cmd(ha->eeprom_cmd_data, ha);
 	return 1;
 }
 
···
 	int previousBit;
 
 	/* Clock in a zero, then do the start bit. */
-	writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1, isp_nvram(ha));
-	writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
-	       AUBURN_EEPROM_CLK_RISE, isp_nvram(ha));
-	writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
-	       AUBURN_EEPROM_CLK_FALL, isp_nvram(ha));
-	readl(isp_nvram(ha));
+	eeprom_cmd(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1, ha);
+
+	eeprom_cmd(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
+	       AUBURN_EEPROM_CLK_RISE, ha);
+	eeprom_cmd(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
+	       AUBURN_EEPROM_CLK_FALL, ha);
+
 	mask = 1 << (FM93C56A_CMD_BITS - 1);
 
 	/* Force the previous data bit to be different. */
···
 			 * If the bit changed, then change the DO state to
 			 * match.
 			 */
-			writel(ha->eeprom_cmd_data | dataBit, isp_nvram(ha));
+			eeprom_cmd(ha->eeprom_cmd_data | dataBit, ha);
 			previousBit = dataBit;
 		}
-		writel(ha->eeprom_cmd_data | dataBit |
-		       AUBURN_EEPROM_CLK_RISE, isp_nvram(ha));
-		writel(ha->eeprom_cmd_data | dataBit |
-		       AUBURN_EEPROM_CLK_FALL, isp_nvram(ha));
-		readl(isp_nvram(ha));
+		eeprom_cmd(ha->eeprom_cmd_data | dataBit |
+		       AUBURN_EEPROM_CLK_RISE, ha);
+		eeprom_cmd(ha->eeprom_cmd_data | dataBit |
+		       AUBURN_EEPROM_CLK_FALL, ha);
+
 		cmd = cmd << 1;
 	}
 	mask = 1 << (eeprom_no_addr_bits(ha) - 1);
···
 			 * If the bit changed, then change the DO state to
 			 * match.
 			 */
-			writel(ha->eeprom_cmd_data | dataBit, isp_nvram(ha));
+			eeprom_cmd(ha->eeprom_cmd_data | dataBit, ha);
+
 			previousBit = dataBit;
 		}
-		writel(ha->eeprom_cmd_data | dataBit |
-		       AUBURN_EEPROM_CLK_RISE, isp_nvram(ha));
-		writel(ha->eeprom_cmd_data | dataBit |
-		       AUBURN_EEPROM_CLK_FALL, isp_nvram(ha));
-		readl(isp_nvram(ha));
+		eeprom_cmd(ha->eeprom_cmd_data | dataBit |
+		       AUBURN_EEPROM_CLK_RISE, ha);
+		eeprom_cmd(ha->eeprom_cmd_data | dataBit |
+		       AUBURN_EEPROM_CLK_FALL, ha);
+
 		addr = addr << 1;
 	}
 	return 1;
···
 static int fm93c56a_deselect(struct scsi_qla_host * ha)
 {
 	ha->eeprom_cmd_data = AUBURN_EEPROM_CS_0 | 0x000f0000;
-	writel(ha->eeprom_cmd_data, isp_nvram(ha));
-	readl(isp_nvram(ha));
+	eeprom_cmd(ha->eeprom_cmd_data, ha);
 	return 1;
 }
 
···
 	/* Read the data bits
 	 * The first bit is a dummy.  Clock right over it. */
 	for (i = 0; i < eeprom_no_data_bits(ha); i++) {
-		writel(ha->eeprom_cmd_data |
-		       AUBURN_EEPROM_CLK_RISE, isp_nvram(ha));
-		writel(ha->eeprom_cmd_data |
-		       AUBURN_EEPROM_CLK_FALL, isp_nvram(ha));
-		dataBit =
-			(readw(isp_nvram(ha)) & AUBURN_EEPROM_DI_1) ? 1 : 0;
+		eeprom_cmd(ha->eeprom_cmd_data |
+		       AUBURN_EEPROM_CLK_RISE, ha);
+		eeprom_cmd(ha->eeprom_cmd_data |
+		       AUBURN_EEPROM_CLK_FALL, ha);
+
+		dataBit = (readw(isp_nvram(ha)) & AUBURN_EEPROM_DI_1) ? 1 : 0;
+
 		data = (data << 1) | dataBit;
 	}
 

drivers/scsi/qla4xxx/ql4_nvram.h

···
 			u16 phyConfig;	/* x36 */
 #define	 PHY_CONFIG_PHY_ADDR_MASK	      0x1f
 #define	 PHY_CONFIG_ENABLE_FW_MANAGEMENT_MASK 0x20
-			u16 topcat;	/* x38 */
-#define TOPCAT_PRESENT		0x0100
-#define TOPCAT_MASK		0xFF00
+			u16 reserved_56;	/* x38 */
 
 #define EEPROM_UNUSED_1_SIZE   2
 			u8 unused_1[EEPROM_UNUSED_1_SIZE]; /* x3A */

drivers/scsi/qla4xxx/ql4_os.c

···
 }
 
 /**
- * qla4010_soft_reset - performs soft reset.
+ * qla4xxx_soft_reset - performs soft reset.
  * @ha: Pointer to host adapter structure.
  **/
-static int qla4010_soft_reset(struct scsi_qla_host *ha)
+int qla4xxx_soft_reset(struct scsi_qla_host *ha)
 {
 	uint32_t max_wait_time;
 	unsigned long flags = 0;
···
 }
 
 /**
- * qla4xxx_topcat_reset - performs hard reset of TopCat Chip.
- * @ha: Pointer to host adapter structure.
- **/
-static int qla4xxx_topcat_reset(struct scsi_qla_host *ha)
-{
-	unsigned long flags;
-
-	ql4xxx_lock_nvram(ha);
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-	writel(set_rmask(GPOR_TOPCAT_RESET), isp_gp_out(ha));
-	readl(isp_gp_out(ha));
-	mdelay(1);
-
-	writel(clr_rmask(GPOR_TOPCAT_RESET), isp_gp_out(ha));
-	readl(isp_gp_out(ha));
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-	mdelay(2523);
-
-	ql4xxx_unlock_nvram(ha);
-	return QLA_SUCCESS;
-}
-
-/**
  * qla4xxx_flush_active_srbs - returns all outstanding i/o requests to O.S.
  * @ha: Pointer to host adapter structure.
  *
···
 	}
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
-}
-
-/**
- * qla4xxx_hard_reset - performs HBA Hard Reset
- * @ha: Pointer to host adapter structure.
- **/
-static int qla4xxx_hard_reset(struct scsi_qla_host *ha)
-{
-	/* The QLA4010 really doesn't have an equivalent to a hard reset */
-	qla4xxx_flush_active_srbs(ha);
-	if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) {
-		int status = QLA_ERROR;
-
-		if ((qla4010_soft_reset(ha) == QLA_SUCCESS) &&
-		    (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) &&
-		    (qla4010_soft_reset(ha) == QLA_SUCCESS))
-			status = QLA_SUCCESS;
-		return status;
-	} else
-		return qla4010_soft_reset(ha);
 }
 
 /**
···
 	if (status == QLA_SUCCESS) {
 		DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
 			      ha->host_no, __func__));
-		status = qla4xxx_soft_reset(ha);
-	}
-	/* FIXMEkaren: Do we want to keep interrupts enabled and process
-	   AENs after soft reset */
-
-	/* If firmware (SOFT) reset failed, or if all outstanding
-	 * commands have not returned, then do a HARD reset.
-	 */
-	if (status == QLA_ERROR) {
-		DEBUG2(printk("scsi%ld: %s - Performing hard reset..\n",
-			      ha->host_no, __func__));
-		status = qla4xxx_hard_reset(ha);
+		qla4xxx_flush_active_srbs(ha);
+		if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
+			status = qla4xxx_soft_reset(ha);
+		else
+			status = QLA_ERROR;
 	}
 
 	/* Flush any pending ddb changed AENs */
···
 	struct scsi_qla_host *ha = (struct scsi_qla_host *) data;
 	struct ddb_entry *ddb_entry, *dtemp;
 
-	DEBUG2(printk("scsi%ld: %s: DPC handler waking up.\n",
-		      ha->host_no, __func__));
-
-	DEBUG2(printk("scsi%ld: %s: ha->flags = 0x%08lx\n",
-		      ha->host_no, __func__, ha->flags));
-	DEBUG2(printk("scsi%ld: %s: ha->dpc_flags = 0x%08lx\n",
-		      ha->host_no, __func__, ha->dpc_flags));
+	DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
+		"flags = 0x%08lx, dpc_flags = 0x%08lx\n",
+		ha->host_no, __func__, ha->flags, ha->dpc_flags));
 
 	/* Initialization not yet finished. Don't do anything yet. */
 	if (!test_bit(AF_INIT_DONE, &ha->flags))
···
 	    test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags)) {
-		if (test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags))
-			/*
-			 * dg 09/23 Never initialize ddb list
-			 * once we up and running
-			 * qla4xxx_recover_adapter(ha,
-			 *    REBUILD_DDB_LIST);
-			 */
-			qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST);
-
-		if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
+		if (test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags) ||
+			test_bit(DPC_RESET_HA, &ha->dpc_flags))
 			qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST);
 
 		if (test_and_clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
···
 		destroy_workqueue(ha->dpc_thread);
 
 	/* Issue Soft Reset to put firmware in unknown state */
-	qla4xxx_soft_reset(ha);
+	if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
+		qla4xxx_soft_reset(ha);
 
 	/* Remove timer thread, if present */
 	if (ha->timer_active)
···
 	init_waitqueue_head(&ha->mailbox_wait_queue);
 
 	spin_lock_init(&ha->hardware_lock);
-	spin_lock_init(&ha->list_lock);
 
 	/* Allocate dma buffers */
 	if (qla4xxx_mem_alloc(ha)) {
···
 }
 
 /**
- * qla4xxx_soft_reset - performs a SOFT RESET of hba.
- * @ha: Pointer to host adapter structure.
- **/
-int qla4xxx_soft_reset(struct scsi_qla_host *ha)
-{
-
-	DEBUG2(printk(KERN_WARNING "scsi%ld: %s: chip reset!\n", ha->host_no,
-		      __func__));
-	if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) {
-		int status = QLA_ERROR;
-
-		if ((qla4010_soft_reset(ha) == QLA_SUCCESS) &&
-		    (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) &&
-		    (qla4010_soft_reset(ha) == QLA_SUCCESS) )
-			status = QLA_SUCCESS;
-		return status;
-	} else
-		return qla4010_soft_reset(ha);
-}
-
-/**
  * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
  * @ha: actual ha whose done queue will contain the comd returned by firmware.
  * @cmd: Scsi Command to wait on.
···
 	{
 		.vendor		= PCI_VENDOR_ID_QLOGIC,
 		.device		= PCI_DEVICE_ID_QLOGIC_ISP4022,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_QLOGIC,
+		.device		= PCI_DEVICE_ID_QLOGIC_ISP4032,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
 	},

drivers/scsi/qla4xxx/ql4_version.h

···
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION	"5.00.05b9-k"
-
-#define QL4_DRIVER_MAJOR_VER	5
-#define QL4_DRIVER_MINOR_VER	0
-#define QL4_DRIVER_PATCH_VER	5
-#define QL4_DRIVER_BETA_VER	9
+#define QLA4XXX_DRIVER_VERSION	"5.00.07-k"

drivers/scsi/scsi.c

···
 
 static DEFINE_MUTEX(host_cmd_pool_mutex);
 
-static struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost,
-					    gfp_t gfp_mask)
+struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask)
 {
 	struct scsi_cmnd *cmd;
 
···
 
 	return cmd;
 }
+EXPORT_SYMBOL_GPL(__scsi_get_command);
 
 /*
  * Function:	scsi_get_command()
···
 		put_device(&dev->sdev_gendev);
 
 	return cmd;
-}				
+}
 EXPORT_SYMBOL(scsi_get_command);
+
+void __scsi_put_command(struct Scsi_Host *shost, struct scsi_cmnd *cmd,
+			struct device *dev)
+{
+	unsigned long flags;
+
+	/* changing locks here, don't need to restore the irq state */
+	spin_lock_irqsave(&shost->free_list_lock, flags);
+	if (unlikely(list_empty(&shost->free_list))) {
+		list_add(&cmd->list, &shost->free_list);
+		cmd = NULL;
+	}
+	spin_unlock_irqrestore(&shost->free_list_lock, flags);
+
+	if (likely(cmd != NULL))
+		kmem_cache_free(shost->cmd_pool->slab, cmd);
+
+	put_device(dev);
+}
+EXPORT_SYMBOL(__scsi_put_command);
 
 /*
  * Function:	scsi_put_command()
···
 void scsi_put_command(struct scsi_cmnd *cmd)
 {
 	struct scsi_device *sdev = cmd->device;
-	struct Scsi_Host *shost = sdev->host;
 	unsigned long flags;
-	
+
 	/* serious error if the command hasn't come from a device list */
 	spin_lock_irqsave(&cmd->device->list_lock, flags);
 	BUG_ON(list_empty(&cmd->list));
 	list_del_init(&cmd->list);
-	spin_unlock(&cmd->device->list_lock);
-	/* changing locks here, don't need to restore the irq state */
-	spin_lock(&shost->free_list_lock);
-	if (unlikely(list_empty(&shost->free_list))) {
-		list_add(&cmd->list, &shost->free_list);
-		cmd = NULL;
-	}
-	spin_unlock_irqrestore(&shost->free_list_lock, flags);
+	spin_unlock_irqrestore(&cmd->device->list_lock, flags);
 
-	if (likely(cmd != NULL))
-		kmem_cache_free(shost->cmd_pool->slab, cmd);
-
-	put_device(&sdev->sdev_gendev);
+	__scsi_put_command(cmd->device->host, cmd, &sdev->sdev_gendev);
 }
 EXPORT_SYMBOL(scsi_put_command);
 
···
  */
 void scsi_device_put(struct scsi_device *sdev)
 {
+#ifdef CONFIG_MODULE_UNLOAD
 	struct module *module = sdev->host->hostt->module;
 
-#ifdef CONFIG_MODULE_UNLOAD
 	/* The module refcount will be zero if scsi_device_get()
 	 * was called from a module removal routine */
 	if (module && module_refcount(module) != 0)

drivers/scsi/scsi_error.c

···
 }
 
 /**
- * scsi_send_eh_cmnd  - send a cmd to a device as part of error recovery.
- * @scmd:	SCSI Cmd to send.
- * @timeout:	Timeout for cmd.
+ * scsi_send_eh_cmnd  - submit a scsi command as part of error recory
+ * @scmd:       SCSI command structure to hijack
+ * @cmnd:       CDB to send
+ * @cmnd_size:  size in bytes of @cmnd
+ * @timeout:    timeout for this request
+ * @copy_sense: request sense data if set to 1
+ *
+ * This function is used to send a scsi command down to a target device
+ * as part of the error recovery process.  If @copy_sense is 0 the command
+ * sent must be one that does not transfer any data.  If @copy_sense is 1
+ * the command must be REQUEST_SENSE and this functions copies out the
+ * sense buffer it got into @scmd->sense_buffer.
  *
  * Return value:
  *    SUCCESS or FAILED or NEEDS_RETRY
···
 	DECLARE_COMPLETION_ONSTACK(done);
 	unsigned long timeleft;
 	unsigned long flags;
+	struct scatterlist sgl;
 	unsigned char old_cmnd[MAX_COMMAND_SIZE];
 	enum dma_data_direction old_data_direction;
 	unsigned short old_use_sg;
···
 		if (shost->hostt->unchecked_isa_dma)
 			gfp_mask |= __GFP_DMA;
 
-		scmd->sc_data_direction = DMA_FROM_DEVICE;
-		scmd->request_bufflen = 252;
-		scmd->request_buffer = kzalloc(scmd->request_bufflen, gfp_mask);
-		if (!scmd->request_buffer)
+		sgl.page = alloc_page(gfp_mask);
+		if (!sgl.page)
 			return FAILED;
+		sgl.offset = 0;
+		sgl.length = 252;
+
+		scmd->sc_data_direction = DMA_FROM_DEVICE;
+		scmd->request_bufflen = sgl.length;
+		scmd->request_buffer = &sgl;
+		scmd->use_sg = 1;
 	} else {
 		scmd->request_buffer = NULL;
 		scmd->request_bufflen = 0;
 		scmd->sc_data_direction = DMA_NONE;
+		scmd->use_sg = 0;
 	}
 
 	scmd->underflow = 0;
-	scmd->use_sg = 0;
 	scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]);
 
 	if (sdev->scsi_level <= SCSI_2)
···
 			memcpy(scmd->sense_buffer, scmd->request_buffer,
 			       sizeof(scmd->sense_buffer));
 		}
-		kfree(scmd->request_buffer);
+		__free_page(sgl.page);
 	}
 
 

drivers/scsi/scsi_lib.c

···
 	return NULL;
 }
 
-static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
+struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 {
 	struct scsi_host_sg_pool *sgp;
 	struct scatterlist *sgl;
···
 	return sgl;
 }
 
-static void scsi_free_sgtable(struct scatterlist *sgl, int index)
+EXPORT_SYMBOL(scsi_alloc_sgtable);
+
+void scsi_free_sgtable(struct scatterlist *sgl, int index)
 {
 	struct scsi_host_sg_pool *sgp;
 
···
 	sgp = scsi_sg_pools + index;
 	mempool_free(sgl, sgp->pool);
 }
+
+EXPORT_SYMBOL(scsi_free_sgtable);
 
 /*
  * Function:    scsi_release_buffers()
···
 	int		   count;
 
 	/*
-	 * if this is a rq->data based REQ_BLOCK_PC, setup for a non-sg xfer
-	 */
-	if (blk_pc_request(req) && !req->bio) {
-		cmd->request_bufflen = req->data_len;
-		cmd->request_buffer = req->data;
-		req->buffer = req->data;
-		cmd->use_sg = 0;
-		return 0;
-	}
-
-	/*
-	 * we used to not use scatter-gather for single segment request,
+	 * We used to not use scatter-gather for single segment request,
 	 * but now we do (it makes highmem I/O easier to support without
 	 * kmapping pages)
 	 */
 	cmd->use_sg = req->nr_phys_segments;
 
 	/*
-	 * if sg table allocation fails, requeue request later.
+	 * If sg table allocation fails, requeue request later.
 	 */
 	sgpnt = scsi_alloc_sgtable(cmd, GFP_ATOMIC);
 	if (unlikely(!sgpnt)) {
···
 		return BLKPREP_DEFER;
 	}
 
+	req->buffer = NULL;
 	cmd->request_buffer = (char *) sgpnt;
-	cmd->request_bufflen = req->nr_sectors << 9;
 	if (blk_pc_request(req))
 		cmd->request_bufflen = req->data_len;
-	req->buffer = NULL;
+	else
+		cmd->request_bufflen = req->nr_sectors << 9;
 
 	/* 
 	 * Next, walk the list, and fill in the addresses and sizes of
 	 * each segment.
 	 */
 	count = blk_rq_map_sg(req->q, req, cmd->request_buffer);
-
-	/*
-	 * mapped well, send it off
-	 */
 	if (likely(count <= cmd->use_sg)) {
 		cmd->use_sg = count;
-		return 0;
+		return BLKPREP_OK;
 	}
 
 	printk(KERN_ERR "Incorrect number of segments after building list\n");
···
 	return -EOPNOTSUPP;
 }
 
+static struct scsi_cmnd *scsi_get_cmd_from_req(struct scsi_device *sdev,
+		struct request *req)
+{
+	struct scsi_cmnd *cmd;
+
+	if (!req->special) {
+		cmd = scsi_get_command(sdev, GFP_ATOMIC);
+		if (unlikely(!cmd))
+			return NULL;
+		req->special = cmd;
+	} else {
+		cmd = req->special;
+	}
+
+	/* pull a tag out of the request if we have one */
+	cmd->tag = req->tag;
+	cmd->request = req;
+
+	return cmd;
+}
+
 static void scsi_blk_pc_done(struct scsi_cmnd *cmd)
 {
 	BUG_ON(!blk_pc_request(cmd->request));
···
 	scsi_io_completion(cmd, cmd->request_bufflen);
 }
 
-static void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
+static int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req)
 {
-	struct request *req = cmd->request;
+	struct scsi_cmnd *cmd;
+
+	cmd = scsi_get_cmd_from_req(sdev, req);
+	if (unlikely(!cmd))
+		return BLKPREP_DEFER;
+
+	/*
+	 * BLOCK_PC requests may transfer data, in which case they must
+	 * a bio attached to them.  Or they might contain a SCSI command
+	 * that does not transfer data, in which case they may optionally
+	 * submit a request without an attached bio.
+	 */
+	if (req->bio) {
+		int ret;
+
+		BUG_ON(!req->nr_phys_segments);
+
+		ret = scsi_init_io(cmd);
+		if (unlikely(ret))
+			return ret;
+	} else {
+		BUG_ON(req->data_len);
+		BUG_ON(req->data);
+
+		cmd->request_bufflen = 0;
+		cmd->request_buffer = NULL;
+		cmd->use_sg = 0;
+		req->buffer = NULL;
+	}
 
 	BUILD_BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd));
 	memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
···
 	cmd->allowed = req->retries;
 	cmd->timeout_per_command = req->timeout;
 	cmd->done = scsi_blk_pc_done;
+	return BLKPREP_OK;
+}
+
+/*
+ * Setup a REQ_TYPE_FS command.  These are simple read/write request
+ * from filesystems that still need to be translated to SCSI CDBs from
+ * the ULD.
+ */
+static int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req)
+{
+	struct scsi_cmnd *cmd;
+	struct scsi_driver *drv;
+	int ret;
+
+	/*
+	 * Filesystem requests must transfer data.
+	 */
+	BUG_ON(!req->nr_phys_segments);
+
+	cmd = scsi_get_cmd_from_req(sdev, req);
+	if (unlikely(!cmd))
+		return BLKPREP_DEFER;
+
+	ret = scsi_init_io(cmd);
+	if (unlikely(ret))
+		return ret;
+
+	/*
+	 * Initialize the actual SCSI command for this request.
+	 */
+	drv = *(struct scsi_driver **)req->rq_disk->private_data;
+	if (unlikely(!drv->init_command(cmd))) {
+		scsi_release_buffers(cmd);
+		scsi_put_command(cmd);
+		return BLKPREP_KILL;
+	}
+
+	return BLKPREP_OK;
 }
 
 static int scsi_prep_fn(struct request_queue *q, struct request *req)
 {
 	struct scsi_device *sdev = q->queuedata;
-	struct scsi_cmnd *cmd;
-	int specials_only = 0;
+	int ret = BLKPREP_OK;
 
 	/*
-	 * Just check to see if the device is online.  If it isn't, we
-	 * refuse to process any commands.  The device must be brought
-	 * online before trying any recovery commands
+	 * If the device is not in running state we will reject some
+	 * or all commands.
 	 */
-	if (unlikely(!scsi_device_online(sdev))) {
-		sdev_printk(KERN_ERR, sdev,
-			    "rejecting I/O to offline device\n");
-		goto kill;
-	}
 	if (unlikely(sdev->sdev_state != SDEV_RUNNING)) {
-		/* OK, we're not in a running state don't prep
-		 * user commands */
-		if (sdev->sdev_state == SDEV_DEL) {
-			/* Device is fully deleted, no commands
-			 * at all allowed down */
+		switch (sdev->sdev_state) {
+		case SDEV_OFFLINE:
+			/*
+			 * If the device is offline we refuse to process any
+			 * commands.  The device must be brought online
+			 * before trying any recovery commands.
+			 */
+			sdev_printk(KERN_ERR, sdev,
+				    "rejecting I/O to offline device\n");
+			ret = BLKPREP_KILL;
+			break;
+		case SDEV_DEL:
+			/*
+			 * If the device is fully deleted, we refuse to
+			 * process any commands as well.
+			 */
 			sdev_printk(KERN_ERR, sdev,
 				    "rejecting I/O to dead device\n");
-			goto kill;
+			ret = BLKPREP_KILL;
+			break;
+		case SDEV_QUIESCE:
+		case SDEV_BLOCK:
+			/*
+			 * If the devices is blocked we defer normal commands.
+			 */
+			if (!(req->cmd_flags & REQ_PREEMPT))
+				ret = BLKPREP_DEFER;
+			break;
+		default:
+			/*
+			 * For any other not fully online state we only allow
+			 * special commands.  In particular any user initiated
+			 * command is not allowed.
+			 */
+			if (!(req->cmd_flags & REQ_PREEMPT))
+				ret = BLKPREP_KILL;
+			break;
 		}
-		/* OK, we only allow special commands (i.e. not
-		 * user initiated ones */
-		specials_only = sdev->sdev_state;
+
+		if (ret != BLKPREP_OK)
+			goto out;
 	}
 
-	/*
-	 * Find the actual device driver associated with this command.
-	 * The SPECIAL requests are things like character device or
-	 * ioctls, which did not originate from ll_rw_blk.  Note that
-	 * the special field is also used to indicate the cmd for
-	 * the remainder of a partially fulfilled request that can 
-	 * come up when there is a medium error.  We have to treat
-	 * these two cases differently.  We differentiate by looking
-	 * at request->cmd, as this tells us the real story.
-	 */
-	if (blk_special_request(req) && req->special)
-		cmd = req->special;
-	else if (blk_pc_request(req) || blk_fs_request(req)) {
-		if (unlikely(specials_only) && !(req->cmd_flags & REQ_PREEMPT)){
-			if (specials_only == SDEV_QUIESCE ||
-			    specials_only == SDEV_BLOCK)
-				goto defer;
-			
-			sdev_printk(KERN_ERR, sdev,
-				    "rejecting I/O to device being removed\n");
-			goto kill;
-		}
-			
+	switch (req->cmd_type) {
+	case REQ_TYPE_BLOCK_PC:
+		ret = scsi_setup_blk_pc_cmnd(sdev, req);
+		break;
+	case REQ_TYPE_FS:
+		ret = scsi_setup_fs_cmnd(sdev, req);
+		break;
+	default:
 		/*
-		 * Now try and find a command block that we can use.
-		 */
-		if (!req->special) {
-			cmd = scsi_get_command(sdev, GFP_ATOMIC);
-			if (unlikely(!cmd))
-				goto defer;
-		} else
-			cmd = req->special;
-		
-		/* pull a tag out of the request if we have one */
-		cmd->tag = req->tag;
-	} else {
-		blk_dump_rq_flags(req, "SCSI bad req");
-		goto kill;
-	}
-	
-	/* note the overloading of req->special.  When the tag
-	 * is active it always means cmd.  If the tag goes
-	 * back for re-queueing, it may be reset */
-	req->special = cmd;
-	cmd->request = req;
-	
-	/*
-	 * FIXME: drop the lock here because the functions below
-	 * expect to be called without the queue lock held.  Also,
-	 * previously, we dequeued the request before dropping the
-	 * lock.  We hope REQ_STARTED prevents anything untoward from
-	 * happening now.
-	 */
-	if (blk_fs_request(req) || blk_pc_request(req)) {
-		int ret;
-
-		/*
-		 * This will do a couple of things:
-		 *  1) Fill in the actual SCSI command.
-		 *  2) Fill in any other upper-level specific fields
-		 * (timeout).
+		 * All other command types are not supported.
 		 *
-		 * If this returns 0, it means that the request failed
-		 * (reading past end of disk, reading offline device,
-		 * etc).   This won't actually talk to the device, but
-		 * some kinds of consistency checking may cause the	
-		 * request to be rejected immediately.
+		 * Note that these days the SCSI subsystem does not use
+		 * REQ_TYPE_SPECIAL requests anymore.  These are only used
+		 * (directly or via blk_insert_request) by non-SCSI drivers.
 		 */
-
-		/* 
-		 * This sets up the scatter-gather table (allocating if
-		 * required).
-		 */
-		ret = scsi_init_io(cmd);
-		switch(ret) {
-			/* For BLKPREP_KILL/DEFER the cmd was released */
-		case BLKPREP_KILL:
-			goto kill;
-		case BLKPREP_DEFER:
-			goto defer;
-		}
-		
-		/*
-		 * Initialize the actual SCSI command for this request.
-		 */
-		if (blk_pc_request(req)) {
-			scsi_setup_blk_pc_cmnd(cmd);
-		} else if (req->rq_disk) {
-			struct scsi_driver *drv;
-
-			drv = *(struct scsi_driver **)req->rq_disk->private_data;
-			if (unlikely(!drv->init_command(cmd))) {
-				scsi_release_buffers(cmd);
-				scsi_put_command(cmd);
-				goto kill;
-			}
-		}
+		blk_dump_rq_flags(req, "SCSI bad req");
+		ret = BLKPREP_KILL;
+		break;
 	}
 
-	/*
-	 * The request is now prepped, no need to come back here
-	 */
-	req->cmd_flags |= REQ_DONTPREP;
-	return BLKPREP_OK;
+ out:
+	switch (ret) {
+	case BLKPREP_KILL:
+		req->errors = DID_NO_CONNECT << 16;
+		break;
+	case BLKPREP_DEFER:
+		/*
+		 * If we defer, the elv_next_request() returns NULL, but the
+		 * queue must be restarted, so we plug here if no returning
+		 * command will automatically do that.
+		 */
+		if (sdev->device_busy == 0)
+			blk_plug_device(q);
+		break;
+	default:
+		req->cmd_flags |= REQ_DONTPREP;
+	}
 
- defer:
-	/* If we defer, the elv_next_request() returns NULL, but the
-	 * queue must be restarted, so we plug here if no returning
-	 * command will automatically do that. */
-	if (sdev->device_busy == 0)
-		blk_plug_device(q);
-	return BLKPREP_DEFER;
- kill:
-	req->errors = DID_NO_CONNECT << 16;
-	return BLKPREP_KILL;
+	return ret;
 }
 
 /*
···
 }
 EXPORT_SYMBOL(scsi_calculate_bounce_limit);
 
-struct request_queue *scsi_alloc_queue(struct scsi_device *sdev)
+struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
+					 request_fn_proc *request_fn)
 {
-	struct Scsi_Host *shost = sdev->host;
 	struct request_queue *q;
 
-	q = blk_init_queue(scsi_request_fn, NULL);
+	q = blk_init_queue(request_fn, NULL);
 	if (!q)
 		return NULL;
-
-	blk_queue_prep_rq(q, scsi_prep_fn);
 
 	blk_queue_max_hw_segments(q, shost->sg_tablesize);
 	blk_queue_max_phys_segments(q, SCSI_MAX_PHYS_SEGMENTS);
 	blk_queue_max_sectors(q, shost->max_sectors);
 	blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost));
 	blk_queue_segment_boundary(q, shost->dma_boundary);
-	blk_queue_issue_flush_fn(q, scsi_issue_flush_fn);
-	blk_queue_softirq_done(q, scsi_softirq_done);
 
 	if (!shost->use_clustering)
 		clear_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
+	return q;
+}
+EXPORT_SYMBOL(__scsi_alloc_queue);
+
+struct request_queue *scsi_alloc_queue(struct scsi_device *sdev)
+{
+	struct request_queue *q;
+
+	q = __scsi_alloc_queue(sdev->host, scsi_request_fn);
+	if (!q)
+		return NULL;
+
+	blk_queue_prep_rq(q, scsi_prep_fn);
+	blk_queue_issue_flush_fn(q, scsi_issue_flush_fn);
+	blk_queue_softirq_done(q, scsi_softirq_done);
 	return q;
 }
 

drivers/scsi/scsi_priv.h

···
 	{ };
 #endif
 
+/* scsi_scan.c */
+int scsi_complete_async_scans(void);
+
 /* scsi_devinfo.c */
 extern int scsi_get_device_flags(struct scsi_device *sdev,
 				 const unsigned char *vendor,

drivers/scsi/scsi_scan.c

···
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/blkdev.h>
-#include <asm/semaphore.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+#include <linux/spinlock.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
···
 MODULE_PARM_DESC(max_luns,
 		 "last scsi LUN (should be between 1 and 2^32-1)");
 
+#ifdef CONFIG_SCSI_SCAN_ASYNC
+#define SCSI_SCAN_TYPE_DEFAULT "async"
+#else
+#define SCSI_SCAN_TYPE_DEFAULT "sync"
+#endif
+
+static char scsi_scan_type[6] = SCSI_SCAN_TYPE_DEFAULT;
+
+module_param_string(scan, scsi_scan_type, sizeof(scsi_scan_type), S_IRUGO);
+MODULE_PARM_DESC(scan, "sync, async or none");
+
 /*
  * max_scsi_report_luns: the maximum number of LUNS that will be
  * returned from the REPORT LUNS command. 8 times this value must
···
 MODULE_PARM_DESC(inq_timeout, 
 		 "Timeout (in seconds) waiting for devices to answer INQUIRY."
 		 " Default is 5. Some non-compliant devices need more.");
+
+static DEFINE_SPINLOCK(async_scan_lock);
+static LIST_HEAD(scanning_hosts);
+
+struct async_scan_data {
+	struct list_head list;
+	struct Scsi_Host *shost;
+	struct completion prev_finished;
+};
+
+/**
+ * scsi_complete_async_scans - Wait for asynchronous scans to complete
+ *
+ * Asynchronous scans add themselves to the scanning_hosts list.  Once
+ * that list is empty, we know that the scans are complete.  Rather than
+ * waking up periodically to check the state of the list, we pretend to be
+ * a scanning task by adding ourselves at the end of the list and going to
+ * sleep.  When the task before us wakes us up, we take ourselves off the
+ * list and return.
+ */
+int scsi_complete_async_scans(void)
+{
+	struct async_scan_data *data;
+
+	do {
+		if (list_empty(&scanning_hosts))
+			return 0;
+		/* If we can't get memory immediately, that's OK.  Just
+		 * sleep a little.  Even if we never get memory, the async
+		 * scans will finish eventually.
+		 */
+		data = kmalloc(sizeof(*data), GFP_KERNEL);
+		if (!data)
+			msleep(1);
+	} while (!data);
+
+	data->shost = NULL;
+	init_completion(&data->prev_finished);
+
+	spin_lock(&async_scan_lock);
+	/* Check that there's still somebody else on the list */
+	if (list_empty(&scanning_hosts))
+		goto done;
+	list_add_tail(&data->list, &scanning_hosts);
+	spin_unlock(&async_scan_lock);
+
+	printk(KERN_INFO "scsi: waiting for bus probes to complete ...\n");
+	wait_for_completion(&data->prev_finished);
+
+	spin_lock(&async_scan_lock);
+	list_del(&data->list);
+ done:
+	spin_unlock(&async_scan_lock);
+
+	kfree(data);
+	return 0;
+}
+
+#ifdef MODULE
+/* Only exported for the benefit of scsi_wait_scan */
+EXPORT_SYMBOL_GPL(scsi_complete_async_scans);
+#endif
 
 /**
  * scsi_unlock_floptical - unlock device via a special MODE SENSE command
···
  *     SCSI_SCAN_LUN_PRESENT: a new scsi_device was allocated and initialized
  **/
 static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
-		int *bflags)
+		int *bflags, int async)
 {
 	/*
 	 * XXX do not save the inquiry, since it can change underneath us,
···
 	 * register it and tell the rest of the kernel
 	 * about it.
 	 */
-	if (scsi_sysfs_add_sdev(sdev) != 0)
+	if (!async && scsi_sysfs_add_sdev(sdev) != 0)
 		return SCSI_SCAN_NO_RESPONSE;
 
 	return SCSI_SCAN_LUN_PRESENT;
···
 		goto out_free_result;
 	}
 
-	res = scsi_add_lun(sdev, result, &bflags);
+	res = scsi_add_lun(sdev, result, &bflags, shost->async_scan);
 	if (res == SCSI_SCAN_LUN_PRESENT) {
 		if (bflags & BLIST_KEY) {
 			sdev->lockable = 0;
···
 {
 	struct Scsi_Host *shost = dev_to_shost(parent);
 
+	if (strncmp(scsi_scan_type, "none", 4) == 0)
+		return;
+
+	if (!shost->async_scan)
+		scsi_complete_async_scans();
+
 	mutex_lock(&shost->scan_mutex);
 	if (scsi_host_scan_allowed(shost))
 		__scsi_scan_target(parent, channel, id, lun, rescan);
···
 		"%s: <%u:%u:%u>\n",
 		__FUNCTION__, channel, id, lun));
 
+	if (!shost->async_scan)
+		scsi_complete_async_scans();
+
 	if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||
 	    ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) ||
 	    ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun)))
···
 	return 0;
 }
 
+static void scsi_sysfs_add_devices(struct Scsi_Host *shost)
+{
+	struct scsi_device *sdev;
+	shost_for_each_device(sdev, shost) {
+		if (scsi_sysfs_add_sdev(sdev) != 0)
+			scsi_destroy_sdev(sdev);
+	}
+}
+
+/**
+ * scsi_prep_async_scan - prepare for an async scan
+ * @shost: the host which will be scanned
+ * Returns: a cookie to be passed to scsi_finish_async_scan()
+ *
+ * Tells the midlayer this host is going to do an asynchronous scan.
+ * It reserves the host's position in the scanning list and ensures
+ * that other asynchronous scans started after this one won't affect the
+ * ordering of the discovered devices.
+ */
+static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost)
+{
+	struct async_scan_data *data;
+
+	if (strncmp(scsi_scan_type, "sync", 4) == 0)
+		return NULL;
+
+	if (shost->async_scan) {
+		printk("%s called twice for host %d", __FUNCTION__,
+				shost->host_no);
+		dump_stack();
+		return NULL;
+	}
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		goto err;
+	data->shost = scsi_host_get(shost);
+	if (!data->shost)
+		goto err;
+	init_completion(&data->prev_finished);
+
+	spin_lock(&async_scan_lock);
+	shost->async_scan = 1;
+	if (list_empty(&scanning_hosts))
+		complete(&data->prev_finished);
+	list_add_tail(&data->list, &scanning_hosts);
+	spin_unlock(&async_scan_lock);
+
+	return data;
+
+ err:
+	kfree(data);
+	return NULL;
+}
+
+/**
+ * scsi_finish_async_scan - asynchronous scan has finished
+ * @data: cookie returned from earlier call to scsi_prep_async_scan()
+ *
+ * All the devices currently attached to this host have been found.
+ * This function announces all the devices it has found to the rest
+ * of the system.
+ */
+static void scsi_finish_async_scan(struct async_scan_data *data)
+{
+	struct Scsi_Host *shost;
+
+	if (!data)
+		return;
+
+	shost = data->shost;
+	if (!shost->async_scan) {
+		printk("%s called twice for host %d", __FUNCTION__,
+				shost->host_no);
+		dump_stack();
+		return;
+	}
+
+	wait_for_completion(&data->prev_finished);
+
+	scsi_sysfs_add_devices(shost);
+
+	spin_lock(&async_scan_lock);
+	shost->async_scan = 0;
+	list_del(&data->list);
+	if (!list_empty(&scanning_hosts)) {
+		struct async_scan_data *next = list_entry(scanning_hosts.next,
+				struct async_scan_data, list);
+		complete(&next->prev_finished);
+	}
+	spin_unlock(&async_scan_lock);
+
+	scsi_host_put(shost);
+	kfree(data);
+}
+
+static void do_scsi_scan_host(struct Scsi_Host *shost)
+{
+	if (shost->hostt->scan_finished) {
+		unsigned long start = jiffies;
+		if (shost->hostt->scan_start)
+			shost->hostt->scan_start(shost);
+
+		while (!shost->hostt->scan_finished(shost, jiffies - start))
+			msleep(10);
+	} else {
+		scsi_scan_host_selected(shost, SCAN_WILD_CARD, SCAN_WILD_CARD,
+				SCAN_WILD_CARD, 0);
+	}
+}
+
+static int do_scan_async(void *_data)
+{
+	struct async_scan_data *data = _data;
+	do_scsi_scan_host(data->shost);
+	scsi_finish_async_scan(data);
+	return 0;
+}
+
 /**
  * scsi_scan_host - scan the given adapter
  * @shost:	adapter to scan
  **/
 void scsi_scan_host(struct Scsi_Host *shost)
 {
-	scsi_scan_host_selected(shost, SCAN_WILD_CARD, SCAN_WILD_CARD,
-				SCAN_WILD_CARD, 0);
+	struct async_scan_data *data;
+
+	if (strncmp(scsi_scan_type, "none", 4) == 0)
+		return;
+
+	data = scsi_prep_async_scan(shost);
+	if (!data) {
+		do_scsi_scan_host(shost);
+		return;
+	}
+
+	kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
 }
 EXPORT_SYMBOL(scsi_scan_host);
 

drivers/scsi/scsi_tgt_if.c

···
+/*
+ * SCSI target kernel/user interface functions
+ *
+ * Copyright (C) 2005 FUJITA Tomonori <[e-mail]>
+ * Copyright (C) 2005 Mike Christie <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/miscdevice.h>
+#include <linux/file.h>
+#include <net/tcp.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tgt.h>
+#include <scsi/scsi_tgt_if.h>
+
+#include <asm/cacheflush.h>
+
+#include "scsi_tgt_priv.h"
+
+struct tgt_ring {
+	u32 tr_idx;
+	unsigned long tr_pages[TGT_RING_PAGES];
+	spinlock_t tr_lock;
+};
+
+/* tx_ring : kernel->user, rx_ring : user->kernel */
+static struct tgt_ring tx_ring, rx_ring;
+static DECLARE_WAIT_QUEUE_HEAD(tgt_poll_wait);
+
+static inline void tgt_ring_idx_inc(struct tgt_ring *ring)
+{
+	if (ring->tr_idx == TGT_MAX_EVENTS - 1)
+		ring->tr_idx = 0;
+	else
+		ring->tr_idx++;
+}
+
+static struct tgt_event *tgt_head_event(struct tgt_ring *ring, u32 idx)
+{
+	u32 pidx, off;
+
+	pidx = idx / TGT_EVENT_PER_PAGE;
+	off = idx % TGT_EVENT_PER_PAGE;
+
+	return (struct tgt_event *)
+		(ring->tr_pages[pidx] + sizeof(struct tgt_event) * off);
+}
+
+static int tgt_uspace_send_event(u32 type, struct tgt_event *p)
+{
+	struct tgt_event *ev;
+	struct tgt_ring *ring = &tx_ring;
+	unsigned long flags;
+	int err = 0;
+
+	spin_lock_irqsave(&ring->tr_lock, flags);
+
+	ev = tgt_head_event(ring, ring->tr_idx);
+	if (!ev->hdr.status)
+		tgt_ring_idx_inc(ring);
+	else
+		err = -BUSY;
+
+	spin_unlock_irqrestore(&ring->tr_lock, flags);
+
+	if (err)
+		return err;
+
+	memcpy(ev, p, sizeof(*ev));
+	ev->hdr.type = type;
+	mb();
+	ev->hdr.status = 1;
+
+	flush_dcache_page(virt_to_page(ev));
+
+	wake_up_interruptible(&tgt_poll_wait);
+
+	return 0;
+}
+
+int scsi_tgt_uspace_send_cmd(struct scsi_cmnd *cmd, struct scsi_lun *lun, u64 tag)
+{
+	struct Scsi_Host *shost = scsi_tgt_cmd_to_host(cmd);
+	struct tgt_event ev;
+	int err;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.p.cmd_req.host_no = shost->host_no;
+	ev.p.cmd_req.data_len = cmd->request_bufflen;
+	memcpy(ev.p.cmd_req.scb, cmd->cmnd, sizeof(ev.p.cmd_req.scb));
+	memcpy(ev.p.cmd_req.lun, lun, sizeof(ev.p.cmd_req.lun));
+	ev.p.cmd_req.attribute = cmd->tag;
+	ev.p.cmd_req.tag = tag;
+
+	dprintk("%p %d %u %x %llx\n", cmd, shost->host_no,
+		ev.p.cmd_req.data_len, cmd->tag,
+		(unsigned long long) ev.p.cmd_req.tag);
+
+	err = tgt_uspace_send_event(TGT_KEVENT_CMD_REQ, &ev);
+	if (err)
+		eprintk("tx buf is full, could not send\n");
+
+	return err;
+}
+
+int scsi_tgt_uspace_send_status(struct scsi_cmnd *cmd, u64 tag)
+{
+	struct Scsi_Host *shost = scsi_tgt_cmd_to_host(cmd);
+	struct tgt_event ev;
+	int err;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.p.cmd_done.host_no = shost->host_no;
+	ev.p.cmd_done.tag = tag;
+	ev.p.cmd_done.result = cmd->result;
+
+	dprintk("%p %d %llu %u %x\n", cmd, shost->host_no,
+		(unsigned long long) ev.p.cmd_req.tag,
+		ev.p.cmd_req.data_len, cmd->tag);
+
+	err = tgt_uspace_send_event(TGT_KEVENT_CMD_DONE, &ev);
+	if (err)
+		eprintk("tx buf is full, could not send\n");
+
+	return err;
+}
+
+int scsi_tgt_uspace_send_tsk_mgmt(int host_no, int function, u64 tag,
+				  struct scsi_lun *scsilun, void *data)
+{
+	struct tgt_event ev;
+	int err;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.p.tsk_mgmt_req.host_no = host_no;
+	ev.p.tsk_mgmt_req.function = function;
+	ev.p.tsk_mgmt_req.tag = tag;
+	memcpy(ev.p.tsk_mgmt_req.lun, scsilun, sizeof(ev.p.tsk_mgmt_req.lun));
+	ev.p.tsk_mgmt_req.mid = (u64) (unsigned long) data;
+
+	dprintk("%d %x %llx %llx\n", host_no, function, (unsigned long long) tag,
+		(unsigned long long) ev.p.tsk_mgmt_req.mid);
+
+	err = tgt_uspace_send_event(TGT_KEVENT_TSK_MGMT_REQ, &ev);
+	if (err)
+		eprintk("tx buf is full, could not send\n");
+
+	return err;
+}
+
+static int event_recv_msg(struct tgt_event *ev)
+{
+	int err = 0;
+
+	switch (ev->hdr.type) {
+	case TGT_UEVENT_CMD_RSP:
+		err = scsi_tgt_kspace_exec(ev->p.cmd_rsp.host_no,
+					   ev->p.cmd_rsp.tag,
+					   ev->p.cmd_rsp.result,
+					   ev->p.cmd_rsp.len,
+					   ev->p.cmd_rsp.uaddr,
+					   ev->p.cmd_rsp.rw);
+		break;
+	case TGT_UEVENT_TSK_MGMT_RSP:
+		err = scsi_tgt_kspace_tsk_mgmt(ev->p.tsk_mgmt_rsp.host_no,
+					       ev->p.tsk_mgmt_rsp.mid,
+					       ev->p.tsk_mgmt_rsp.result);
+		break;
+	default:
+		eprintk("unknown type %d\n", ev->hdr.type);
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static ssize_t tgt_write(struct file *file, const char __user * buffer,
+			 size_t count, loff_t * ppos)
+{
+	struct tgt_event *ev;
+	struct tgt_ring *ring = &rx_ring;
+
+	while (1) {
+		ev = tgt_head_event(ring, ring->tr_idx);
+		/* do we need this? */
+		flush_dcache_page(virt_to_page(ev));
+
+		if (!ev->hdr.status)
+			break;
+
+		tgt_ring_idx_inc(ring);
+		event_recv_msg(ev);
+		ev->hdr.status = 0;
+	};
+
+	return count;
+}
+
+static unsigned int tgt_poll(struct file * file, struct poll_table_struct *wait)
+{
+	struct tgt_event *ev;
+	struct tgt_ring *ring = &tx_ring;
+	unsigned long flags;
+	unsigned int mask = 0;
+	u32 idx;
+
+	poll_wait(file, &tgt_poll_wait, wait);
+
+	spin_lock_irqsave(&ring->tr_lock, flags);
+
+	idx = ring->tr_idx ? ring->tr_idx - 1 : TGT_MAX_EVENTS - 1;
+	ev = tgt_head_event(ring, idx);
+	if (ev->hdr.status)
+		mask |= POLLIN | POLLRDNORM;
+
+	spin_unlock_irqrestore(&ring->tr_lock, flags);
+
+	return mask;
+}
+
+static int uspace_ring_map(struct vm_area_struct *vma, unsigned long addr,
+			   struct tgt_ring *ring)
+{
+	int i, err;
+
+	for (i = 0; i < TGT_RING_PAGES; i++) {
+		struct page *page = virt_to_page(ring->tr_pages[i]);
+		err = vm_insert_page(vma, addr, page);
+		if (err)
+			return err;
+		addr += PAGE_SIZE;
+	}
+
+	return 0;
+}
+
+static int tgt_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	unsigned long addr;
+	int err;
+
+	if (vma->vm_pgoff)
+		return -EINVAL;
+
+	if (vma->vm_end - vma->vm_start != TGT_RING_SIZE * 2) {
+		eprintk("mmap size must be %lu, not %lu \n",
+			TGT_RING_SIZE * 2, vma->vm_end - vma->vm_start);
+		return -EINVAL;
+	}
+
+	addr = vma->vm_start;
+	err = uspace_ring_map(vma, addr, &tx_ring);
+	if (err)
+		return err;
+	err = uspace_ring_map(vma, addr + TGT_RING_SIZE, &rx_ring);
+
+	return err;
+}
+
+static int tgt_open(struct inode *inode, struct file *file)
+{
+	tx_ring.tr_idx = rx_ring.tr_idx = 0;
+
+	return 0;
+}
+
+static struct file_operations tgt_fops = {
+	.owner		= THIS_MODULE,
+	.open		= tgt_open,
+	.poll		= tgt_poll,
+	.write		= tgt_write,
+	.mmap		= tgt_mmap,
+};
+
+static struct miscdevice tgt_miscdev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "tgt",
+	.fops = &tgt_fops,
+};
+
+static void tgt_ring_exit(struct tgt_ring *ring)
+{
+	int i;
+
+	for (i = 0; i < TGT_RING_PAGES; i++)
+		free_page(ring->tr_pages[i]);
+}
+
+static int tgt_ring_init(struct tgt_ring *ring)
+{
+	int i;
+
+	spin_lock_init(&ring->tr_lock);
+
+	for (i = 0; i < TGT_RING_PAGES; i++) {
+		ring->tr_pages[i] = get_zeroed_page(GFP_KERNEL);
+		if (!ring->tr_pages[i]) {
+			eprintk("out of memory\n");
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+}
+
+void scsi_tgt_if_exit(void)
+{
+	tgt_ring_exit(&tx_ring);
+	tgt_ring_exit(&rx_ring);
+	misc_deregister(&tgt_miscdev);
+}
+
+int scsi_tgt_if_init(void)
+{
+	int err;
+
+	err = tgt_ring_init(&tx_ring);
+	if (err)
+		return err;
+
+	err = tgt_ring_init(&rx_ring);
+	if (err)
+		goto free_tx_ring;
+
+	err = misc_register(&tgt_miscdev);
+	if (err)
+		goto free_rx_ring;
+
+	return 0;
+free_rx_ring:
+	tgt_ring_exit(&rx_ring);
+free_tx_ring:
+	tgt_ring_exit(&tx_ring);
+
+	return err;
+}

drivers/scsi/scsi_tgt_lib.c

···
+/*
+ * SCSI target lib functions
+ *
+ * Copyright (C) 2005 Mike Christie <[e-mail]>
+ * Copyright (C) 2005 FUJITA Tomonori <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/blkdev.h>
+#include <linux/hash.h>
+#include <linux/module.h>
+#include <linux/pagemap.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tgt.h>
+#include <../drivers/md/dm-bio-list.h>
+
+#include "scsi_tgt_priv.h"
+
+static struct workqueue_struct *scsi_tgtd;
+static kmem_cache_t *scsi_tgt_cmd_cache;
+
+/*
+ * TODO: this struct will be killed when the block layer supports large bios
+ * and James's work struct code is in
+ */
+struct scsi_tgt_cmd {
+	/* TODO replace work with James b's code */
+	struct work_struct work;
+	/* TODO replace the lists with a large bio */
+	struct bio_list xfer_done_list;
+	struct bio_list xfer_list;
+
+	struct list_head hash_list;
+	struct request *rq;
+	u64 tag;
+
+	void *buffer;
+	unsigned bufflen;
+};
+
+#define TGT_HASH_ORDER	4
+#define cmd_hashfn(tag)	hash_long((unsigned long) (tag), TGT_HASH_ORDER)
+
+struct scsi_tgt_queuedata {
+	struct Scsi_Host *shost;
+	struct list_head cmd_hash[1 << TGT_HASH_ORDER];
+	spinlock_t cmd_hash_lock;
+};
+
+/*
+ * Function:	scsi_host_get_command()
+ *
+ * Purpose:	Allocate and setup a scsi command block and blk request
+ *
+ * Arguments:	shost	- scsi host
+ *		data_dir - dma data dir
+ *		gfp_mask- allocator flags
+ *
+ * Returns:	The allocated scsi command structure.
+ *
+ * This should be called by target LLDs to get a command.
+ */
+struct scsi_cmnd *scsi_host_get_command(struct Scsi_Host *shost,
+					enum dma_data_direction data_dir,
+					gfp_t gfp_mask)
+{
+	int write = (data_dir == DMA_TO_DEVICE);
+	struct request *rq;
+	struct scsi_cmnd *cmd;
+	struct scsi_tgt_cmd *tcmd;
+
+	/* Bail if we can't get a reference to the device */
+	if (!get_device(&shost->shost_gendev))
+		return NULL;
+
+	tcmd = kmem_cache_alloc(scsi_tgt_cmd_cache, GFP_ATOMIC);
+	if (!tcmd)
+		goto put_dev;
+
+	rq = blk_get_request(shost->uspace_req_q, write, gfp_mask);
+	if (!rq)
+		goto free_tcmd;
+
+	cmd = __scsi_get_command(shost, gfp_mask);
+	if (!cmd)
+		goto release_rq;
+
+	memset(cmd, 0, sizeof(*cmd));
+	cmd->sc_data_direction = data_dir;
+	cmd->jiffies_at_alloc = jiffies;
+	cmd->request = rq;
+
+	rq->special = cmd;
+	rq->cmd_type = REQ_TYPE_SPECIAL;
+	rq->cmd_flags |= REQ_TYPE_BLOCK_PC;
+	rq->end_io_data = tcmd;
+
+	bio_list_init(&tcmd->xfer_list);
+	bio_list_init(&tcmd->xfer_done_list);
+	tcmd->rq = rq;
+
+	return cmd;
+
+release_rq:
+	blk_put_request(rq);
+free_tcmd:
+	kmem_cache_free(scsi_tgt_cmd_cache, tcmd);
+put_dev:
+	put_device(&shost->shost_gendev);
+	return NULL;
+
+}
+EXPORT_SYMBOL_GPL(scsi_host_get_command);
+
+/*
+ * Function:	scsi_host_put_command()
+ *
+ * Purpose:	Free a scsi command block
+ *
+ * Arguments:	shost	- scsi host
+ * 		cmd	- command block to free
+ *
+ * Returns:	Nothing.
+ *
+ * Notes:	The command must not belong to any lists.
+ */
+void scsi_host_put_command(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
+{
+	struct request_queue *q = shost->uspace_req_q;
+	struct request *rq = cmd->request;
+	struct scsi_tgt_cmd *tcmd = rq->end_io_data;
+	unsigned long flags;
+
+	kmem_cache_free(scsi_tgt_cmd_cache, tcmd);
+
+	spin_lock_irqsave(q->queue_lock, flags);
+	__blk_put_request(q, rq);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+
+	__scsi_put_command(shost, cmd, &shost->shost_gendev);
+}
+EXPORT_SYMBOL_GPL(scsi_host_put_command);
+
+static void scsi_unmap_user_pages(struct scsi_tgt_cmd *tcmd)
+{
+	struct bio *bio;
+
+	/* must call bio_endio in case bio was bounced */
+	while ((bio = bio_list_pop(&tcmd->xfer_done_list))) {
+		bio_endio(bio, bio->bi_size, 0);
+		bio_unmap_user(bio);
+	}
+
+	while ((bio = bio_list_pop(&tcmd->xfer_list))) {
+		bio_endio(bio, bio->bi_size, 0);
+		bio_unmap_user(bio);
+	}
+}
+
+static void cmd_hashlist_del(struct scsi_cmnd *cmd)
+{
+	struct request_queue *q = cmd->request->q;
+	struct scsi_tgt_queuedata *qdata = q->queuedata;
+	unsigned long flags;
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+
+	spin_lock_irqsave(&qdata->cmd_hash_lock, flags);
+	list_del(&tcmd->hash_list);
+	spin_unlock_irqrestore(&qdata->cmd_hash_lock, flags);
+}
+
+static void scsi_tgt_cmd_destroy(void *data)
+{
+	struct scsi_cmnd *cmd = data;
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+
+	dprintk("cmd %p %d %lu\n", cmd, cmd->sc_data_direction,
+		rq_data_dir(cmd->request));
+	/*
+	 * We fix rq->cmd_flags here since when we told bio_map_user
+	 * to write vm for WRITE commands, blk_rq_bio_prep set
+	 * rq_data_dir the flags to READ.
+	 */
+	if (cmd->sc_data_direction == DMA_TO_DEVICE)
+		cmd->request->cmd_flags |= REQ_RW;
+	else
+		cmd->request->cmd_flags &= ~REQ_RW;
+
+	scsi_unmap_user_pages(tcmd);
+	scsi_host_put_command(scsi_tgt_cmd_to_host(cmd), cmd);
+}
+
+static void init_scsi_tgt_cmd(struct request *rq, struct scsi_tgt_cmd *tcmd,
+			      u64 tag)
+{
+	struct scsi_tgt_queuedata *qdata = rq->q->queuedata;
+	unsigned long flags;
+	struct list_head *head;
+
+	tcmd->tag = tag;
+	spin_lock_irqsave(&qdata->cmd_hash_lock, flags);
+	head = &qdata->cmd_hash[cmd_hashfn(tag)];
+	list_add(&tcmd->hash_list, head);
+	spin_unlock_irqrestore(&qdata->cmd_hash_lock, flags);
+}
+
+/*
+ * scsi_tgt_alloc_queue - setup queue used for message passing
+ * shost: scsi host
+ *
+ * This should be called by the LLD after host allocation.
+ * And will be released when the host is released.
+ */
+int scsi_tgt_alloc_queue(struct Scsi_Host *shost)
+{
+	struct scsi_tgt_queuedata *queuedata;
+	struct request_queue *q;
+	int err, i;
+
+	/*
+	 * Do we need to send a netlink event or should uspace
+	 * just respond to the hotplug event?
+	 */
+	q = __scsi_alloc_queue(shost, NULL);
+	if (!q)
+		return -ENOMEM;
+
+	queuedata = kzalloc(sizeof(*queuedata), GFP_KERNEL);
+	if (!queuedata) {
+		err = -ENOMEM;
+		goto cleanup_queue;
+	}
+	queuedata->shost = shost;
+	q->queuedata = queuedata;
+
+	/*
+	 * this is a silly hack. We should probably just queue as many
+	 * command as is recvd to userspace. uspace can then make
+	 * sure we do not overload the HBA
+	 */
+	q->nr_requests = shost->hostt->can_queue;
+	/*
+	 * We currently only support software LLDs so this does
+	 * not matter for now. Do we need this for the cards we support?
+	 * If so we should make it a host template value.
+	 */
+	blk_queue_dma_alignment(q, 0);
+	shost->uspace_req_q = q;
+
+	for (i = 0; i < ARRAY_SIZE(queuedata->cmd_hash); i++)
+		INIT_LIST_HEAD(&queuedata->cmd_hash[i]);
+	spin_lock_init(&queuedata->cmd_hash_lock);
+
+	return 0;
+
+cleanup_queue:
+	blk_cleanup_queue(q);
+	return err;
+}
+EXPORT_SYMBOL_GPL(scsi_tgt_alloc_queue);
+
+void scsi_tgt_free_queue(struct Scsi_Host *shost)
+{
+	int i;
+	unsigned long flags;
+	struct request_queue *q = shost->uspace_req_q;
+	struct scsi_cmnd *cmd;
+	struct scsi_tgt_queuedata *qdata = q->queuedata;
+	struct scsi_tgt_cmd *tcmd, *n;
+	LIST_HEAD(cmds);
+
+	spin_lock_irqsave(&qdata->cmd_hash_lock, flags);
+
+	for (i = 0; i < ARRAY_SIZE(qdata->cmd_hash); i++) {
+		list_for_each_entry_safe(tcmd, n, &qdata->cmd_hash[i],
+					 hash_list) {
+			list_del(&tcmd->hash_list);
+			list_add(&tcmd->hash_list, &cmds);
+		}
+	}
+
+	spin_unlock_irqrestore(&qdata->cmd_hash_lock, flags);
+
+	while (!list_empty(&cmds)) {
+		tcmd = list_entry(cmds.next, struct scsi_tgt_cmd, hash_list);
+		list_del(&tcmd->hash_list);
+		cmd = tcmd->rq->special;
+
+		shost->hostt->eh_abort_handler(cmd);
+		scsi_tgt_cmd_destroy(cmd);
+	}
+}
+EXPORT_SYMBOL_GPL(scsi_tgt_free_queue);
+
+struct Scsi_Host *scsi_tgt_cmd_to_host(struct scsi_cmnd *cmd)
+{
+	struct scsi_tgt_queuedata *queue = cmd->request->q->queuedata;
+	return queue->shost;
+}
+EXPORT_SYMBOL_GPL(scsi_tgt_cmd_to_host);
+
+/*
+ * scsi_tgt_queue_command - queue command for userspace processing
+ * @cmd:	scsi command
+ * @scsilun:	scsi lun
+ * @tag:	unique value to identify this command for tmf
+ */
+int scsi_tgt_queue_command(struct scsi_cmnd *cmd, struct scsi_lun *scsilun,
+			   u64 tag)
+{
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+	int err;
+
+	init_scsi_tgt_cmd(cmd->request, tcmd, tag);
+	err = scsi_tgt_uspace_send_cmd(cmd, scsilun, tag);
+	if (err)
+		cmd_hashlist_del(cmd);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(scsi_tgt_queue_command);
+
+/*
+ * This is run from a interrpt handler normally and the unmap
+ * needs process context so we must queue
+ */
+static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
+{
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+
+	dprintk("cmd %p %lu\n", cmd, rq_data_dir(cmd->request));
+
+	scsi_tgt_uspace_send_status(cmd, tcmd->tag);
+	INIT_WORK(&tcmd->work, scsi_tgt_cmd_destroy, cmd);
+	queue_work(scsi_tgtd, &tcmd->work);
+}
+
+static int __scsi_tgt_transfer_response(struct scsi_cmnd *cmd)
+{
+	struct Scsi_Host *shost = scsi_tgt_cmd_to_host(cmd);
+	int err;
+
+	dprintk("cmd %p %lu\n", cmd, rq_data_dir(cmd->request));
+
+	err = shost->hostt->transfer_response(cmd, scsi_tgt_cmd_done);
+	switch (err) {
+	case SCSI_MLQUEUE_HOST_BUSY:
+	case SCSI_MLQUEUE_DEVICE_BUSY:
+		return -EAGAIN;
+	}
+
+	return 0;
+}
+
+static void scsi_tgt_transfer_response(struct scsi_cmnd *cmd)
+{
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+	int err;
+
+	err = __scsi_tgt_transfer_response(cmd);
+	if (!err)
+		return;
+
+	cmd->result = DID_BUS_BUSY << 16;
+	err = scsi_tgt_uspace_send_status(cmd, tcmd->tag);
+	if (err <= 0)
+		/* the eh will have to pick this up */
+		printk(KERN_ERR "Could not send cmd %p status\n", cmd);
+}
+
+static int scsi_tgt_init_cmd(struct scsi_cmnd *cmd, gfp_t gfp_mask)
+{
+	struct request *rq = cmd->request;
+	struct scsi_tgt_cmd *tcmd = rq->end_io_data;
+	int count;
+
+	cmd->use_sg = rq->nr_phys_segments;
+	cmd->request_buffer = scsi_alloc_sgtable(cmd, gfp_mask);
+	if (!cmd->request_buffer)
+		return -ENOMEM;
+
+	cmd->request_bufflen = rq->data_len;
+
+	dprintk("cmd %p addr %p cnt %d %lu\n", cmd, tcmd->buffer, cmd->use_sg,
+		rq_data_dir(rq));
+	count = blk_rq_map_sg(rq->q, rq, cmd->request_buffer);
+	if (likely(count <= cmd->use_sg)) {
+		cmd->use_sg = count;
+		return 0;
+	}
+
+	eprintk("cmd %p addr %p cnt %d\n", cmd, tcmd->buffer, cmd->use_sg);
+	scsi_free_sgtable(cmd->request_buffer, cmd->sglist_len);
+	return -EINVAL;
+}
+
+/* TODO: test this crap and replace bio_map_user with new interface maybe */
+static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
+			       int rw)
+{
+	struct request_queue *q = cmd->request->q;
+	struct request *rq = cmd->request;
+	void *uaddr = tcmd->buffer;
+	unsigned int len = tcmd->bufflen;
+	struct bio *bio;
+	int err;
+
+	while (len > 0) {
+		dprintk("%lx %u\n", (unsigned long) uaddr, len);
+		bio = bio_map_user(q, NULL, (unsigned long) uaddr, len, rw);
+		if (IS_ERR(bio)) {
+			err = PTR_ERR(bio);
+			dprintk("fail to map %lx %u %d %x\n",
+				(unsigned long) uaddr, len, err, cmd->cmnd[0]);
+			goto unmap_bios;
+		}
+
+		uaddr += bio->bi_size;
+		len -= bio->bi_size;
+
+		/*
+		 * The first bio is added and merged. We could probably
+		 * try to add others using scsi_merge_bio() but for now
+		 * we keep it simple. The first bio should be pretty large
+		 * (either hitting the 1 MB bio pages limit or a queue limit)
+		 * already but for really large IO we may want to try and
+		 * merge these.
+		 */
+		if (!rq->bio) {
+			blk_rq_bio_prep(q, rq, bio);
+			rq->data_len = bio->bi_size;
+		} else
+			/* put list of bios to transfer in next go around */
+			bio_list_add(&tcmd->xfer_list, bio);
+	}
+
+	cmd->offset = 0;
+	err = scsi_tgt_init_cmd(cmd, GFP_KERNEL);
+	if (err)
+		goto unmap_bios;
+
+	return 0;
+
+unmap_bios:
+	if (rq->bio) {
+		bio_unmap_user(rq->bio);
+		while ((bio = bio_list_pop(&tcmd->xfer_list)))
+			bio_unmap_user(bio);
+	}
+
+	return err;
+}
+
+static int scsi_tgt_transfer_data(struct scsi_cmnd *);
+
+static void scsi_tgt_data_transfer_done(struct scsi_cmnd *cmd)
+{
+	struct scsi_tgt_cmd *tcmd = cmd->request->end_io_data;
+	struct bio *bio;
+	int err;
+
+	/* should we free resources here on error ? */
+	if (cmd->result) {
+send_uspace_err:
+		err = scsi_tgt_uspace_send_status(cmd, tcmd->tag);
+		if (err <= 0)
+			/* the tgt uspace eh will have to pick this up */
+			printk(KERN_ERR "Could not send cmd %p status\n", cmd);
+		return;
+	}
+
+	dprintk("cmd %p request_bufflen %u bufflen %u\n",
+		cmd, cmd->request_bufflen, tcmd->bufflen);
+
+	scsi_free_sgtable(cmd->request_buffer, cmd->sglist_len);
+	bio_list_add(&tcmd->xfer_done_list, cmd->request->bio);
+
+	tcmd->buffer += cmd->request_bufflen;
+	cmd->offset += cmd->request_bufflen;
+
+	if (!tcmd->xfer_list.head) {
+		scsi_tgt_transfer_response(cmd);
+		return;
+	}
+
+	dprintk("cmd2 %p request_bufflen %u bufflen %u\n",
+		cmd, cmd->request_bufflen, tcmd->bufflen);
+
+	bio = bio_list_pop(&tcmd->xfer_list);
+	BUG_ON(!bio);
+
+	blk_rq_bio_prep(cmd->request->q, cmd->request, bio);
+	cmd->request->data_len = bio->bi_size;
+	err = scsi_tgt_init_cmd(cmd, GFP_ATOMIC);
+	if (err) {
+		cmd->result = DID_ERROR << 16;
+		goto send_uspace_err;
+	}
+
+	if (scsi_tgt_transfer_data(cmd)) {
+		cmd->result = DID_NO_CONNECT << 16;
+		goto send_uspace_err;
+	}
+}
+
+static int scsi_tgt_transfer_data(struct scsi_cmnd *cmd)
+{
+	int err;
+	struct Scsi_Host *host = scsi_tgt_cmd_to_host(cmd);
+
+	err = host->hostt->transfer_data(cmd, scsi_tgt_data_transfer_done);
+	switch (err) {
+		case SCSI_MLQUEUE_HOST_BUSY:
+		case SCSI_MLQUEUE_DEVICE_BUSY:
+			return -EAGAIN;
+	default:
+		return 0;
+	}
+}
+
+static int scsi_tgt_copy_sense(struct scsi_cmnd *cmd, unsigned long uaddr,
+				unsigned len)
+{
+	char __user *p = (char __user *) uaddr;
+
+	if (copy_from_user(cmd->sense_buffer, p,
+			   min_t(unsigned, SCSI_SENSE_BUFFERSIZE, len))) {
+		printk(KERN_ERR "Could not copy the sense buffer\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int scsi_tgt_abort_cmd(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
+{
+	int err;
+
+	err = shost->hostt->eh_abort_handler(cmd);
+	if (err)
+		eprintk("fail to abort %p\n", cmd);
+
+	scsi_tgt_cmd_destroy(cmd);
+	return err;
+}
+
+static struct request *tgt_cmd_hash_lookup(struct request_queue *q, u64 tag)
+{
+	struct scsi_tgt_queuedata *qdata = q->queuedata;
+	struct request *rq = NULL;
+	struct list_head *head;
+	struct scsi_tgt_cmd *tcmd;
+	unsigned long flags;
+
+	head = &qdata->cmd_hash[cmd_hashfn(tag)];
+	spin_lock_irqsave(&qdata->cmd_hash_lock, flags);
+	list_for_each_entry(tcmd, head, hash_list) {
+		if (tcmd->tag == tag) {
+			rq = tcmd->rq;
+			list_del(&tcmd->hash_list);
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&qdata->cmd_hash_lock, flags);
+
+	return rq;
+}
+
+int scsi_tgt_kspace_exec(int host_no, u64 tag, int result, u32 len,
+			 unsigned long uaddr, u8 rw)
+{
+	struct Scsi_Host *shost;
+	struct scsi_cmnd *cmd;
+	struct request *rq;
+	struct scsi_tgt_cmd *tcmd;
+	int err = 0;
+
+	dprintk("%d %llu %d %u %lx %u\n", host_no, (unsigned long long) tag,
+		result, len, uaddr, rw);
+
+	/* TODO: replace with a O(1) alg */
+	shost = scsi_host_lookup(host_no);
+	if (IS_ERR(shost)) {
+		printk(KERN_ERR "Could not find host no %d\n", host_no);
+		return -EINVAL;
+	}
+
+	if (!shost->uspace_req_q) {
+		printk(KERN_ERR "Not target scsi host %d\n", host_no);
+		goto done;
+	}
+
+	rq = tgt_cmd_hash_lookup(shost->uspace_req_q, tag);
+	if (!rq) {
+		printk(KERN_ERR "Could not find tag %llu\n",
+		       (unsigned long long) tag);
+		err = -EINVAL;
+		goto done;
+	}
+	cmd = rq->special;
+
+	dprintk("cmd %p result %d len %d bufflen %u %lu %x\n", cmd,
+		result, len, cmd->request_bufflen, rq_data_dir(rq), cmd->cmnd[0]);
+
+	if (result == TASK_ABORTED) {
+		scsi_tgt_abort_cmd(shost, cmd);
+		goto done;
+	}
+	/*
+	 * store the userspace values here, the working values are
+	 * in the request_* values
+	 */
+	tcmd = cmd->request->end_io_data;
+	tcmd->buffer = (void *)uaddr;
+	tcmd->bufflen = len;
+	cmd->result = result;
+
+	if (!tcmd->bufflen || cmd->request_buffer) {
+		err = __scsi_tgt_transfer_response(cmd);
+		goto done;
+	}
+
+	/*
+	 * TODO: Do we need to handle case where request does not
+	 * align with LLD.
+	 */
+	err = scsi_map_user_pages(rq->end_io_data, cmd, rw);
+	if (err) {
+		eprintk("%p %d\n", cmd, err);
+		err = -EAGAIN;
+		goto done;
+	}
+
+	/* userspace failure */
+	if (cmd->result) {
+		if (status_byte(cmd->result) == CHECK_CONDITION)
+			scsi_tgt_copy_sense(cmd, uaddr, len);
+		err = __scsi_tgt_transfer_response(cmd);
+		goto done;
+	}
+	/* ask the target LLD to transfer the data to the buffer */
+	err = scsi_tgt_transfer_data(cmd);
+
+done:
+	scsi_host_put(shost);
+	return err;
+}
+
+int scsi_tgt_tsk_mgmt_request(struct Scsi_Host *shost, int function, u64 tag,
+			      struct scsi_lun *scsilun, void *data)
+{
+	int err;
+
+	/* TODO: need to retry if this fails. */
+	err = scsi_tgt_uspace_send_tsk_mgmt(shost->host_no, function,
+					    tag, scsilun, data);
+	if (err < 0)
+		eprintk("The task management request lost!\n");
+	return err;
+}
+EXPORT_SYMBOL_GPL(scsi_tgt_tsk_mgmt_request);
+
+int scsi_tgt_kspace_tsk_mgmt(int host_no, u64 mid, int result)
+{
+	struct Scsi_Host *shost;
+	int err = -EINVAL;
+
+	dprintk("%d %d %llx\n", host_no, result, (unsigned long long) mid);
+
+	shost = scsi_host_lookup(host_no);
+	if (IS_ERR(shost)) {
+		printk(KERN_ERR "Could not find host no %d\n", host_no);
+		return err;
+	}
+
+	if (!shost->uspace_req_q) {
+		printk(KERN_ERR "Not target scsi host %d\n", host_no);
+		goto done;
+	}
+
+	err = shost->hostt->tsk_mgmt_response(mid, result);
+done:
+	scsi_host_put(shost);
+	return err;
+}
+
+static int __init scsi_tgt_init(void)
+{
+	int err;
+
+	scsi_tgt_cmd_cache = kmem_cache_create("scsi_tgt_cmd",
+					       sizeof(struct scsi_tgt_cmd),
+					       0, 0, NULL, NULL);
+	if (!scsi_tgt_cmd_cache)
+		return -ENOMEM;
+
+	scsi_tgtd = create_workqueue("scsi_tgtd");
+	if (!scsi_tgtd) {
+		err = -ENOMEM;
+		goto free_kmemcache;
+	}
+
+	err = scsi_tgt_if_init();
+	if (err)
+		goto destroy_wq;
+
+	return 0;
+
+destroy_wq:
+	destroy_workqueue(scsi_tgtd);
+free_kmemcache:
+	kmem_cache_destroy(scsi_tgt_cmd_cache);
+	return err;
+}
+
+static void __exit scsi_tgt_exit(void)
+{
+	destroy_workqueue(scsi_tgtd);
+	scsi_tgt_if_exit();
+	kmem_cache_destroy(scsi_tgt_cmd_cache);
+}
+
+module_init(scsi_tgt_init);
+module_exit(scsi_tgt_exit);
+
+MODULE_DESCRIPTION("SCSI target core");
+MODULE_LICENSE("GPL");

drivers/scsi/scsi_tgt_priv.h

···
+struct scsi_cmnd;
+struct scsi_lun;
+struct Scsi_Host;
+struct task_struct;
+
+/* tmp - will replace with SCSI logging stuff */
+#define eprintk(fmt, args...)					\
+do {								\
+	printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args);	\
+} while (0)
+
+#define dprintk(fmt, args...)
+/* #define dprintk eprintk */
+
+extern void scsi_tgt_if_exit(void);
+extern int scsi_tgt_if_init(void);
+
+extern int scsi_tgt_uspace_send_cmd(struct scsi_cmnd *cmd, struct scsi_lun *lun,
+				    u64 tag);
+extern int scsi_tgt_uspace_send_status(struct scsi_cmnd *cmd, u64 tag);
+extern int scsi_tgt_kspace_exec(int host_no, u64 tag, int result, u32 len,
+				unsigned long uaddr, u8 rw);
+extern int scsi_tgt_uspace_send_tsk_mgmt(int host_no, int function, u64 tag,
+					 struct scsi_lun *scsilun, void *data);
+extern int scsi_tgt_kspace_tsk_mgmt(int host_no, u64 mid, int result);

drivers/scsi/scsi_wait_scan.c

···
+/*
+ * scsi_wait_scan.c
+ *
+ * Copyright (C) 2006 James Bottomley <[e-mail]>
+ *
+ * This is a simple module to wait until all the async scans are
+ * complete.  The idea is to use it in initrd/initramfs scripts.  You
+ * modprobe it after all the modprobes of the root SCSI drivers and it
+ * will wait until they have all finished scanning their busses before
+ * allowing the boot to proceed
+ */
+
+#include <linux/module.h>
+#include "scsi_priv.h"
+
+static int __init wait_scan_init(void)
+{
+	scsi_complete_async_scans();
+	return 0;
+}
+
+static void __exit wait_scan_exit(void)
+{
+}
+
+MODULE_DESCRIPTION("SCSI wait for scans");
+MODULE_AUTHOR("James Bottomley");
+MODULE_LICENSE("GPL");
+
+late_initcall(wait_scan_init);
+module_exit(wait_scan_exit);

drivers/scsi/sd.c

···
 						      &sshdr, SD_TIMEOUT,
 						      SD_MAX_RETRIES);
 
+			/*
+			 * If the drive has indicated to us that it
+			 * doesn't have any media in it, don't bother
+			 * with any more polling.
+			 */
+			if (media_not_present(sdkp, &sshdr))
+				return;
+
 			if (the_result)
 				sense_valid = scsi_sense_valid(&sshdr);
 			retries++;
···
 			 (!scsi_status_is_good(the_result) ||
 			  ((driver_byte(the_result) & DRIVER_SENSE) &&
 			  sense_valid && sshdr.sense_key == UNIT_ATTENTION)));
-
-		/*
-		 * If the drive has indicated to us that it doesn't have
-		 * any media in it, don't bother with any of the rest of
-		 * this crap.
-		 */
-		if (media_not_present(sdkp, &sshdr))
-			return;
 
 		if ((driver_byte(the_result) & DRIVER_SENSE) == 0) {
 			/* no sense, TUR either succeeded or failed
···
 	res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len, &data, &sshdr);
 
 	if (scsi_status_is_good(res)) {
-		int ct = 0;
 		int offset = data.header_length + data.block_descriptor_length;
 
 		if (offset >= SD_BUF_SIZE - 2) {
···
 			sdkp->DPOFUA = 0;
 		}
 
-		ct =  sdkp->RCD + 2*sdkp->WCE;
-
-		printk(KERN_NOTICE "SCSI device %s: drive cache: %s%s\n",
-		       diskname, sd_cache_types[ct],
-		       sdkp->DPOFUA ? " w/ FUA" : "");
+		printk(KERN_NOTICE "SCSI device %s: "
+		       "write cache: %s, read cache: %s, %s\n",
+		       diskname,
+		       sdkp->WCE ? "enabled" : "disabled",
+		       sdkp->RCD ? "disabled" : "enabled",
+		       sdkp->DPOFUA ? "supports DPO and FUA"
+		       : "doesn't support DPO or FUA");
 
 		return;
 	}

drivers/scsi/st.c

···
    Steve Hirsch, Andreas Koppenh"ofer, Michael Leodolter, Eyal Lebedinsky,
    Michael Schaefer, J"org Weule, and Eric Youngdale.
 
-   Copyright 1992 - 2005 Kai Makisara
+   Copyright 1992 - 2006 Kai Makisara
    email [e-mail]
 
    Some small formal changes - aeb, 950809
···
    Last modified: 18-JAN-1998 Richard Gooch <[e-mail]> Devfs support
  */
 
-static const char *verstr = "20050830";
+static const char *verstr = "20061107";
 
 #include <linux/module.h>
 
···
 			STp->min_block = ((STp->buffer)->b_data[4] << 8) |
 			    (STp->buffer)->b_data[5];
 			if ( DEB( debugging || ) !STp->inited)
-				printk(KERN_WARNING
+				printk(KERN_INFO
                                        "%s: Block limits %d - %d bytes.\n", name,
                                        STp->min_block, STp->max_block);
 		} else {
···
 	}
 
 	DEBC( if (STp->nbr_requests)
-		printk(KERN_WARNING "%s: Number of r/w requests %d, dio used in %d, pages %d (%d).\n",
+		printk(KERN_DEBUG "%s: Number of r/w requests %d, dio used in %d, pages %d (%d).\n",
 		       name, STp->nbr_requests, STp->nbr_dio, STp->nbr_pages, STp->nbr_combinable));
 
 	if (STps->rw == ST_WRITING && !STp->pos_unknown) {
···
 			goto out_free_tape;
 	}
 
-	sdev_printk(KERN_WARNING, SDp,
+	sdev_printk(KERN_NOTICE, SDp,
 		    "Attached scsi tape %s\n", tape_name(tpnt));
-	printk(KERN_WARNING "%s: try direct i/o: %s (alignment %d B)\n",
-	       tape_name(tpnt), tpnt->try_dio ? "yes" : "no",
-	       queue_dma_alignment(SDp->request_queue) + 1);
+	sdev_printk(KERN_INFO, SDp, "%s: try direct i/o: %s (alignment %d B)\n",
+		    tape_name(tpnt), tpnt->try_dio ? "yes" : "no",
+		    queue_dma_alignment(SDp->request_queue) + 1);
 
 	return 0;
 

drivers/scsi/stex.c

···
  *	Written By:
  *		Ed Lin <[e-mail]>
  *
- *	Version: 3.0.0.1
- *
  */
 
 #include <linux/init.h>
···
 #include <scsi/scsi_tcq.h>
 
 #define DRV_NAME "stex"
-#define ST_DRIVER_VERSION "3.0.0.1"
+#define ST_DRIVER_VERSION "3.1.0.1"
 #define ST_VER_MAJOR 		3
-#define ST_VER_MINOR 		0
+#define ST_VER_MINOR 		1
 #define ST_OEM 			0
 #define ST_BUILD_VER 		1
 
···
 	MU_STATE_STARTED			= 4,
 	MU_STATE_RESETTING			= 5,
 
-	MU_MAX_DELAY_TIME			= 240000,
+	MU_MAX_DELAY				= 120,
 	MU_HANDSHAKE_SIGNATURE			= 0x55aaaa55,
+	MU_HANDSHAKE_SIGNATURE_HALF		= 0x5a5a0000,
+	MU_HARD_RESET_WAIT			= 30000,
 	HMU_PARTNER_TYPE			= 2,
 
 	/* firmware returned values */
···
 
 	st_shasta				= 0,
 	st_vsc					= 1,
-	st_yosemite				= 2,
+	st_vsc1					= 2,
+	st_yosemite				= 3,
 
 	PASSTHRU_REQ_TYPE			= 0x00000001,
 	PASSTHRU_REQ_NO_WAKEUP			= 0x00000100,
···
 	MGT_CMD_SIGNATURE			= 0xba,
 
 	INQUIRY_EVPD				= 0x01,
+
+	ST_ADDITIONAL_MEM			= 0x200000,
 };
 
 /* SCSI inquiry data */
···
 	__le32 partner_ver_minor;
 	__le32 partner_ver_oem;
 	__le32 partner_ver_build;
-	u32 reserved1[4];
+	__le32 extra_offset;	/* NEW */
+	__le32 extra_size;	/* NEW */
+	u32 reserved1[2];
 };
 
 struct req_msg {
···
 	void __iomem *mmio_base;	/* iomapped PCI memory space */
 	void *dma_mem;
 	dma_addr_t dma_handle;
+	size_t dma_size;
 
 	struct Scsi_Host *host;
 	struct pci_dev *pdev;
···
 	size_t count = sizeof(struct st_frame);
 
 	p = hba->copy_buffer;
+	stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_FROM_CMD);
 	memset(p->base, 0, sizeof(u32)*6);
 	*(unsigned long *)(p->base) = pci_resource_start(hba->pdev, 0);
 	p->rom_addr = 0;
···
 	void __iomem *base = hba->mmio_base;
 	struct handshake_frame *h;
 	dma_addr_t status_phys;
-	int i;
+	u32 data;
+	unsigned long before;
 
 	if (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
 		writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL);
 		readl(base + IDBL);
-		for (i = 0; readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE
-			&& i < MU_MAX_DELAY_TIME; i++) {
+		before = jiffies;
+		while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
+			if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
+				printk(KERN_ERR DRV_NAME
+					"(%s): no handshake signature\n",
+					pci_name(hba->pdev));
+				return -1;
+			}
 			rmb();
 			msleep(1);
-		}
-
-		if (i == MU_MAX_DELAY_TIME) {
-			printk(KERN_ERR DRV_NAME
-				"(%s): no handshake signature\n",
-				pci_name(hba->pdev));
-			return -1;
 		}
 	}
 
 	udelay(10);
+
+	data = readl(base + OMR1);
+	if ((data & 0xffff0000) == MU_HANDSHAKE_SIGNATURE_HALF) {
+		data &= 0x0000ffff;
+		if (hba->host->can_queue > data)
+			hba->host->can_queue = data;
+	}
 
 	h = (struct handshake_frame *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
 	h->rb_phy = cpu_to_le32(hba->dma_handle);
···
 	h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);
 	stex_gettime(&h->hosttime);
 	h->partner_type = HMU_PARTNER_TYPE;
+	if (hba->dma_size > STEX_BUFFER_SIZE) {
+		h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);
+		h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
+	} else
+		h->extra_offset = h->extra_size = 0;
 
 	status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;
 	writel(status_phys, base + IMR0);
···
 	readl(base + IDBL); /* flush */
 
 	udelay(10);
-	for (i = 0; readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE
-		&& i < MU_MAX_DELAY_TIME; i++) {
+	before = jiffies;
+	while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
+		if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
+			printk(KERN_ERR DRV_NAME
+				"(%s): no signature after handshake frame\n",
+				pci_name(hba->pdev));
+			return -1;
+		}
 		rmb();
 		msleep(1);
-	}
-
-	if (i == MU_MAX_DELAY_TIME) {
-		printk(KERN_ERR DRV_NAME
-			"(%s): no signature after handshake frame\n",
-			pci_name(hba->pdev));
-		return -1;
 	}
 
 	writel(0, base + IMR0);
···
 	pci_bctl &= ~PCI_BRIDGE_CTL_BUS_RESET;
 	pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);
 
-	for (i = 0; i < MU_MAX_DELAY_TIME; i++) {
+	for (i = 0; i < MU_HARD_RESET_WAIT; i++) {
 		pci_read_config_word(hba->pdev, PCI_COMMAND, &pci_cmd);
-		if (pci_cmd & PCI_COMMAND_MASTER)
+		if (pci_cmd != 0xffff && (pci_cmd & PCI_COMMAND_MASTER))
 			break;
 		msleep(1);
 	}
···
 static int stex_biosparam(struct scsi_device *sdev,
 	struct block_device *bdev, sector_t capacity, int geom[])
 {
-	int heads = 255, sectors = 63, cylinders;
+	int heads = 255, sectors = 63;
 
 	if (capacity < 0x200000) {
 		heads = 64;
 		sectors = 32;
 	}
 
-	cylinders = sector_div(capacity, heads * sectors);
+	sector_div(capacity, heads * sectors);
 
 	geom[0] = heads;
 	geom[1] = sectors;
-	geom[2] = cylinders;
+	geom[2] = capacity;
 
 	return 0;
 }
···
 		goto out_iounmap;
 	}
 
+	hba->cardtype = (unsigned int) id->driver_data;
+	if (hba->cardtype == st_vsc && (pdev->subsystem_device & 0xf) == 0x1)
+		hba->cardtype = st_vsc1;
+	hba->dma_size = (hba->cardtype == st_vsc1) ?
+		(STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
 	hba->dma_mem = dma_alloc_coherent(&pdev->dev,
-		STEX_BUFFER_SIZE, &hba->dma_handle, GFP_KERNEL);
+		hba->dma_size, &hba->dma_handle, GFP_KERNEL);
 	if (!hba->dma_mem) {
 		err = -ENOMEM;
 		printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n",
···
 		(struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
 	hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
 	hba->mu_status = MU_STATE_STARTING;
-
-	hba->cardtype = (unsigned int) id->driver_data;
 
 	/* firmware uses id/lun pair for a logical drive, but lun would be
 	   always 0 if CONFIG_SCSI_MULTI_LUN not configured, so we use
···
 	if (err)
 		goto out_free_irq;
 
-	err = scsi_init_shared_tag_map(host, ST_CAN_QUEUE);
+	err = scsi_init_shared_tag_map(host, host->can_queue);
 	if (err) {
 		printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n",
 			pci_name(pdev));
···
 out_free_irq:
 	free_irq(pdev->irq, hba);
 out_pci_free:
-	dma_free_coherent(&pdev->dev, STEX_BUFFER_SIZE,
+	dma_free_coherent(&pdev->dev, hba->dma_size,
 			  hba->dma_mem, hba->dma_handle);
 out_iounmap:
 	iounmap(hba->mmio_base);
···
 
 	pci_release_regions(hba->pdev);
 
-	dma_free_coherent(&hba->pdev->dev, STEX_BUFFER_SIZE,
+	dma_free_coherent(&hba->pdev->dev, hba->dma_size,
 			  hba->dma_mem, hba->dma_handle);
 }
 
···
 }
 
 static struct pci_device_id stex_pci_tbl[] = {
-	{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0xf350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0x8301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x105a, 0x8302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta },
-	{ 0x1725, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
-	{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },
+	/* st_shasta */
+	{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
+	{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		st_shasta }, /* SuperTrak EX12350 */
+	{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		st_shasta }, /* SuperTrak EX4350 */
+	{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		st_shasta }, /* SuperTrak EX24350 */
+
+	/* st_vsc */
+	{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
+
+	/* st_yosemite */
+	{ 0x105a, 0x8650, PCI_ANY_ID, 0x4600, 0, 0,
+		st_yosemite }, /* SuperTrak EX4650 */
+	{ 0x105a, 0x8650, PCI_ANY_ID, 0x4610, 0, 0,
+		st_yosemite }, /* SuperTrak EX4650o */
+	{ 0x105a, 0x8650, PCI_ANY_ID, 0x8600, 0, 0,
+		st_yosemite }, /* SuperTrak EX8650EL */
+	{ 0x105a, 0x8650, PCI_ANY_ID, 0x8601, 0, 0,
+		st_yosemite }, /* SuperTrak EX8650 */
+	{ 0x105a, 0x8650, PCI_ANY_ID, 0x8602, 0, 0,
+		st_yosemite }, /* SuperTrak EX8654 */
+	{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		st_yosemite }, /* generic st_yosemite */
 	{ }	/* terminate list */
 };
 MODULE_DEVICE_TABLE(pci, stex_pci_tbl);

drivers/scsi/t128.h

···
  *	[e-mail]
  *      [phone]
  *
- * DISTRIBUTION RELEASE 3. 
+ * DISTRIBUTION RELEASE 3.
  *
- * For more information, please consult 
+ * For more information, please consult
  *
  * Trantor Systems, Ltd.
  * T128/T128F/T228 SCSI Host Adapter
  * Hardware Specifications
- * 
- * Trantor Systems, Ltd. 
+ *
+ * Trantor Systems, Ltd.
  * 5415 Randall Place
  * Fremont, CA 94538
  * 1+ [phone], FAX 1+ [phone]
- * 
- * and 
+ *
+ * and
  *
  * NCR 5380 Family
  * SCSI Protocol Controller
···
 #define TDEBUG_TRANSFER 0x2
 
 /*
- * The trantor boards are memory mapped. They use an NCR5380 or 
+ * The trantor boards are memory mapped. They use an NCR5380 or
  * equivalent (my sample board had part second sourced from ZILOG).
- * NCR's recommended "Pseudo-DMA" architecture is used, where 
+ * NCR's recommended "Pseudo-DMA" architecture is used, where
  * a PAL drives the DMA signals on the 5380 allowing fast, blind
- * transfers with proper handshaking. 
+ * transfers with proper handshaking.
  */
 
 /*
- * Note : a boot switch is provided for the purpose of informing the 
+ * Note : a boot switch is provided for the purpose of informing the
  * firmware to boot or not boot from attached SCSI devices.  So, I imagine
  * there are fewer people who've yanked the ROM like they do on the Seagate
  * to make bootup faster, and I'll probably use this for autodetection.
···
 #define T_DATA_REG_OFFSET	0x1e00	/* rw 512 bytes long */
 
 #ifndef ASM
-static int t128_abort(Scsi_Cmnd *);
+static int t128_abort(struct scsi_cmnd *);
 static int t128_biosparam(struct scsi_device *, struct block_device *,
 			  sector_t, int*);
 static int t128_detect(struct scsi_host_template *);
-static int t128_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
-static int t128_bus_reset(Scsi_Cmnd *);
+static int t128_queue_command(struct scsi_cmnd *,
+			      void (*done)(struct scsi_cmnd *));
+static int t128_bus_reset(struct scsi_cmnd *);
 
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN 2
 #endif
 
 #ifndef CAN_QUEUE
-#define CAN_QUEUE 32 
+#define CAN_QUEUE 32
 #endif
 
 #ifndef HOSTS_C
···
 
 #define T128_address(reg) (base + T_5380_OFFSET + ((reg) * 0x20))
 
-#if !(TDEBUG & TDEBUG_TRANSFER) 
+#if !(TDEBUG & TDEBUG_TRANSFER)
 #define NCR5380_read(reg) readb(T128_address(reg))
 #define NCR5380_write(reg, value) writeb((value),(T128_address(reg)))
 #else
···
     , instance->hostno, (reg), T128_address(reg))), readb(T128_address(reg)))
 
 #define NCR5380_write(reg, value) {					\
-    printk("scsi%d : write %02x to register %d at address %08x\n", 	\
+    printk("scsi%d : write %02x to register %d at address %08x\n",	\
 	    instance->hostno, (value), (reg), T128_address(reg));	\
     writeb((value), (T128_address(reg)));				\
 }
···
 #define NCR5380_bus_reset t128_bus_reset
 #define NCR5380_proc_info t128_proc_info
 
-/* 15 14 12 10 7 5 3 
+/* 15 14 12 10 7 5 3
    1101 0100 1010 1000 */
-   
-#define T128_IRQS 0xc4a8 
+
+#define T128_IRQS 0xc4a8
 
 #endif /* else def HOSTS_C */
 #endif /* ndef ASM */

include/scsi/libsas.h

···
 	void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
 
 	void *lldd_ha;		  /* not touched by sas class code */
+
+	struct list_head eh_done_q;
 };
 
 #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
···
 
 	void   *lldd_task;	  /* for use by LLDDs */
 	void   *uldd_task;
+
+	struct work_struct abort_work;
 };
 
 
 
-#define SAS_TASK_STATE_PENDING  1
-#define SAS_TASK_STATE_DONE     2
-#define SAS_TASK_STATE_ABORTED  4
+#define SAS_TASK_STATE_PENDING      1
+#define SAS_TASK_STATE_DONE         2
+#define SAS_TASK_STATE_ABORTED      4
+#define SAS_TASK_INITIATOR_ABORTED  8
 
 static inline struct sas_task *sas_alloc_task(gfp_t flags)
 {
···
 extern int sas_register_ha(struct sas_ha_struct *);
 extern int sas_unregister_ha(struct sas_ha_struct *);
 
+int sas_phy_reset(struct sas_phy *phy, int hard_reset);
 extern int sas_queuecommand(struct scsi_cmnd *,
 		     void (*scsi_done)(struct scsi_cmnd *));
 extern int sas_target_alloc(struct scsi_target *);
···
 void sas_unregister_dev(struct domain_device *);
 
 void sas_init_dev(struct domain_device *);
+
+void sas_task_abort(struct sas_task *task);
 
 #endif /* _SASLIB_H_ */

include/scsi/libsrp.h

···
+#ifndef __LIBSRP_H__
+#define __LIBSRP_H__
+
+#include <linux/list.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_host.h>
+#include <scsi/srp.h>
+
+enum iue_flags {
+	V_DIOVER,
+	V_WRITE,
+	V_LINKED,
+	V_FLYING,
+};
+
+struct srp_buf {
+	dma_addr_t dma;
+	void *buf;
+};
+
+struct srp_queue {
+	void *pool;
+	void *items;
+	struct kfifo *queue;
+	spinlock_t lock;
+};
+
+struct srp_target {
+	struct Scsi_Host *shost;
+	struct device *dev;
+
+	spinlock_t lock;
+	struct list_head cmd_queue;
+
+	size_t srp_iu_size;
+	struct srp_queue iu_queue;
+	size_t rx_ring_size;
+	struct srp_buf **rx_ring;
+
+	void *ldata;
+};
+
+struct iu_entry {
+	struct srp_target *target;
+
+	struct list_head ilist;
+	dma_addr_t remote_token;
+	unsigned long flags;
+
+	struct srp_buf *sbuf;
+};
+
+typedef int (srp_rdma_t)(struct scsi_cmnd *, struct scatterlist *, int,
+			 struct srp_direct_buf *, int,
+			 enum dma_data_direction, unsigned int);
+extern int srp_target_alloc(struct srp_target *, struct device *, size_t, size_t);
+extern void srp_target_free(struct srp_target *);
+
+extern struct iu_entry *srp_iu_get(struct srp_target *);
+extern void srp_iu_put(struct iu_entry *);
+
+extern int srp_cmd_queue(struct Scsi_Host *, struct srp_cmd *, void *, u64);
+extern int srp_transfer_data(struct scsi_cmnd *, struct srp_cmd *,
+			     srp_rdma_t, int, int);
+
+
+static inline struct srp_target *host_to_srp_target(struct Scsi_Host *host)
+{
+	return (struct srp_target *) host->hostdata;
+}
+
+static inline int srp_cmd_direction(struct srp_cmd *cmd)
+{
+	return (cmd->buf_fmt >> 4) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
+}
+
+#endif

include/scsi/scsi_cmnd.h

···
 
 struct request;
 struct scatterlist;
+struct Scsi_Host;
 struct scsi_device;
 
 
···
 	unsigned short use_sg;	/* Number of pieces of scatter-gather */
 	unsigned short sglist_len;	/* size of malloc'd scatter-gather list */
 
+	/* offset in cmd we are at (for multi-transfer tgt cmds) */
+	unsigned offset;
+
 	unsigned underflow;	/* Return error if less than
 				   this amount is transferred */
 
···
 };
 
 extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t);
+extern struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *, gfp_t);
 extern void scsi_put_command(struct scsi_cmnd *);
+extern void __scsi_put_command(struct Scsi_Host *, struct scsi_cmnd *,
+			       struct device *);
 extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
 extern void scsi_finish_command(struct scsi_cmnd *cmd);
 extern void scsi_req_abort_cmd(struct scsi_cmnd *cmd);
···
 extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
 				 size_t *offset, size_t *len);
 extern void scsi_kunmap_atomic_sg(void *virt);
+
+extern struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t);
+extern void scsi_free_sgtable(struct scatterlist *, int);
 
 #endif /* _SCSI_SCSI_CMND_H */

include/scsi/scsi_device.h

···
 						  struct scsi_device *);
 
 /**
- * shost_for_each_device  -  iterate over all devices of a host
- * @sdev:	iterator
- * @host:	host whiches devices we want to iterate over
+ * shost_for_each_device - iterate over all devices of a host
+ * @sdev: the &struct scsi_device to use as a cursor
+ * @shost: the &struct scsi_host to iterate over
  *
- * This traverses over each devices of @shost.  The devices have
- * a reference that must be released by scsi_host_put when breaking
- * out of the loop.
+ * Iterator that returns each device attached to @shost.  This loop
+ * takes a reference on each device and releases it at the end.  If
+ * you break out of the loop, you must call scsi_device_put(sdev).
  */
 #define shost_for_each_device(sdev, shost) \
 	for ((sdev) = __scsi_iterate_devices((shost), NULL); \
···
 	     (sdev) = __scsi_iterate_devices((shost), (sdev)))
 
 /**
- * __shost_for_each_device  -  iterate over all devices of a host (UNLOCKED)
- * @sdev:	iterator
- * @host:	host whiches devices we want to iterate over
+ * __shost_for_each_device - iterate over all devices of a host (UNLOCKED)
+ * @sdev: the &struct scsi_device to use as a cursor
+ * @shost: the &struct scsi_host to iterate over
  *
- * This traverses over each devices of @shost.  It does _not_ take a
- * reference on the scsi_device, thus it the whole loop must be protected
- * by shost->host_lock.
+ * Iterator that returns each device attached to @shost.  It does _not_
+ * take a reference on the scsi_device, so the whole loop must be
+ * protected by shost->host_lock.
  *
- * Note:  The only reason why drivers would want to use this is because
- * they're need to access the device list in irq context.  Otherwise you
- * really want to use shost_for_each_device instead.
+ * Note: The only reason to use this is because you need to access the
+ * device list in interrupt context.  Otherwise you really want to use
+ * shost_for_each_device instead.
  */
 #define __shost_for_each_device(sdev, shost) \
 	list_for_each_entry((sdev), &((shost)->__devices), siblings)

include/scsi/scsi_host.h

···
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
 
+struct request_queue;
 struct block_device;
 struct completion;
 struct module;
···
 			     void (*done)(struct scsi_cmnd *));
 
 	/*
+	 * The transfer functions are used to queue a scsi command to
+	 * the LLD. When the driver is finished processing the command
+	 * the done callback is invoked.
+	 *
+	 * return values: see queuecommand
+	 *
+	 * If the LLD accepts the cmd, it should set the result to an
+	 * appropriate value when completed before calling the done function.
+	 *
+	 * STATUS: REQUIRED FOR TARGET DRIVERS
+	 */
+	/* TODO: rename */
+	int (* transfer_response)(struct scsi_cmnd *,
+				  void (*done)(struct scsi_cmnd *));
+	/*
+	 * This is called to inform the LLD to transfer cmd->request_bufflen
+	 * bytes of the cmd at cmd->offset in the cmd. The cmd->use_sg
+	 * speciefies the number of scatterlist entried in the command
+	 * and cmd->request_buffer contains the scatterlist.
+	 *
+	 * If the command cannot be processed in one transfer_data call
+	 * becuase a scatterlist within the LLD's limits cannot be
+	 * created then transfer_data will be called multiple times.
+	 * It is initially called from process context, and later
+	 * calls are from the interrup context.
+	 */
+	int (* transfer_data)(struct scsi_cmnd *,
+			      void (*done)(struct scsi_cmnd *));
+
+	/* Used as callback for the completion of task management request. */
+	int (* tsk_mgmt_response)(u64 mid, int result);
+
+	/*
 	 * This is an error handling strategy routine.  You don't need to
 	 * define one of these if you don't want to - there is a default
 	 * routine that is present that should work in most cases.  For those
···
 	 * Status: OPTIONAL
 	 */
 	void (* target_destroy)(struct scsi_target *);
+
+	/*
+	 * If a host has the ability to discover targets on its own instead
+	 * of scanning the entire bus, it can fill in this function and
+	 * call scsi_scan_host().  This function will be called periodically
+	 * until it returns 1 with the scsi_host and the elapsed time of
+	 * the scan in jiffies.
+	 *
+	 * Status: OPTIONAL
+	 */
+	int (* scan_finished)(struct Scsi_Host *, unsigned long);
+
+	/*
+	 * If the host wants to be called before the scan starts, but
+	 * after the midlayer has set up ready for the scan, it can fill
+	 * in this function.
+	 */
+	void (* scan_start)(struct Scsi_Host *);
 
 	/*
 	 * fill in this function to allow the queue depth of this host
···
 	/* task mgmt function in progress */
 	unsigned tmf_in_progress:1;
 
+	/* Asynchronous scan in progress */
+	unsigned async_scan:1;
+
 	/*
 	 * Optional work queue to be utilized by the transport
 	 */
···
 	 * Value host_blocked counts down from
 	 */
 	unsigned int max_host_blocked;
+
+	/*
+	 * q used for scsi_tgt msgs, async events or any other requests that
+	 * need to be processed in userspace
+	 */
+	struct request_queue *uspace_req_q;
 
 	/* legacy crap */
 	unsigned long base;
···
 
 extern u64 scsi_calculate_bounce_limit(struct Scsi_Host *);
 
-static inline void scsi_assign_lock(struct Scsi_Host *shost, spinlock_t *lock)
-{
-	shost->host_lock = lock;
-}
-
 static inline struct device *scsi_get_device(struct Scsi_Host *shost)
 {
         return shost->shost_gendev.parent;
···
 extern void scsi_block_requests(struct Scsi_Host *);
 
 struct class_container;
+
+extern struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
+						void (*) (struct request_queue *));
 /*
  * These two functions are used to allocate and free a pseudo device
  * which will connect to the host adapter itself rather than any

include/scsi/scsi_tgt.h

···
+/*
+ * SCSI target definitions
+ */
+
+#include <linux/dma-mapping.h>
+
+struct Scsi_Host;
+struct scsi_cmnd;
+struct scsi_lun;
+
+extern struct Scsi_Host *scsi_tgt_cmd_to_host(struct scsi_cmnd *);
+extern int scsi_tgt_alloc_queue(struct Scsi_Host *);
+extern void scsi_tgt_free_queue(struct Scsi_Host *);
+extern int scsi_tgt_queue_command(struct scsi_cmnd *, struct scsi_lun *, u64);
+extern int scsi_tgt_tsk_mgmt_request(struct Scsi_Host *, int, u64, struct scsi_lun *,
+				     void *);
+extern struct scsi_cmnd *scsi_host_get_command(struct Scsi_Host *,
+					       enum dma_data_direction,	gfp_t);
+extern void scsi_host_put_command(struct Scsi_Host *, struct scsi_cmnd *);

include/scsi/scsi_tgt_if.h

···
+/*
+ * SCSI target kernel/user interface
+ *
+ * Copyright (C) 2005 FUJITA Tomonori <[e-mail]>
+ * Copyright (C) 2005 Mike Christie <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#ifndef __SCSI_TARGET_IF_H
+#define __SCSI_TARGET_IF_H
+
+/* user -> kernel */
+#define	TGT_UEVENT_CMD_RSP	0x0001
+#define	TGT_UEVENT_TSK_MGMT_RSP	0x0002
+
+/* kernel -> user */
+#define	TGT_KEVENT_CMD_REQ	0x1001
+#define	TGT_KEVENT_CMD_DONE	0x1002
+#define	TGT_KEVENT_TSK_MGMT_REQ	0x1003
+
+struct tgt_event_hdr {
+	uint16_t version;
+	uint16_t status;
+	uint16_t type;
+	uint16_t len;
+} __attribute__ ((aligned (sizeof(uint64_t))));
+
+struct tgt_event {
+	struct tgt_event_hdr hdr;
+
+	union {
+		/* user-> kernel */
+		struct {
+			int host_no;
+			uint32_t len;
+			int result;
+			aligned_u64 uaddr;
+			uint8_t rw;
+			aligned_u64 tag;
+		} cmd_rsp;
+		struct {
+			int host_no;
+			aligned_u64 mid;
+			int result;
+		} tsk_mgmt_rsp;
+
+
+		/* kernel -> user */
+		struct {
+			int host_no;
+			uint32_t data_len;
+			uint8_t scb[16];
+			uint8_t lun[8];
+			int attribute;
+			aligned_u64 tag;
+		} cmd_req;
+		struct {
+			int host_no;
+			aligned_u64 tag;
+			int result;
+		} cmd_done;
+		struct {
+			int host_no;
+			int function;
+			aligned_u64 tag;
+			uint8_t lun[8];
+			aligned_u64 mid;
+		} tsk_mgmt_req;
+	} p;
+} __attribute__ ((aligned (sizeof(uint64_t))));
+
+#define TGT_RING_SIZE (1UL << 16)
+#define TGT_RING_PAGES (TGT_RING_SIZE >> PAGE_SHIFT)
+#define TGT_EVENT_PER_PAGE (PAGE_SIZE / sizeof(struct tgt_event))
+#define TGT_MAX_EVENTS (TGT_EVENT_PER_PAGE * TGT_RING_PAGES)
+
+#endif

include/scsi/scsi_transport_sas.h

···
 
 	/* for the list of phys belonging to a port */
 	struct list_head	port_siblings;
+
+	struct work_struct      reset_work;
 };
 
 #define dev_to_phy(d) \