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

65 files changed, 3135 insertions, 2863 deletions

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 3ff74f47224..31c49754227 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -73,6 +73,7 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/time.h>
+#include <linux/mutex.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
@@ -615,7 +616,7 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
 	void __user *argp = (void __user *)arg;
 
 	/* Only let one of these through at a time */
-	if (down_interruptible(&tw_dev->ioctl_sem)) {
+	if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
 		retval = TW_IOCTL_ERROR_OS_EINTR;
 		goto out;
 	}
@@ -852,7 +853,7 @@ out3:
 	/* Now free ioctl buf memory */
 	dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle);
 out2:
-	up(&tw_dev->ioctl_sem);
+	mutex_unlock(&tw_dev->ioctl_lock);
 out:
 	return retval;
 } /* End twa_chrdev_ioctl() */
@@ -1182,7 +1183,7 @@ static int twa_initialize_device_extension(TW_Device_Extension *tw_dev)
 	tw_dev->error_sequence_id = 1;
 	tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
 
-	init_MUTEX(&tw_dev->ioctl_sem);
+	mutex_init(&tw_dev->ioctl_lock);
 	init_waitqueue_head(&tw_dev->ioctl_wqueue);
 
 	retval = 0;
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index 46f22cdc829..1b16d57f031 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -672,7 +672,7 @@ typedef struct TAG_TW_Device_Extension {
 	u32                     ioctl_msec;
 	int			chrdev_request_id;
 	wait_queue_head_t	ioctl_wqueue;
-	struct semaphore	ioctl_sem;
+	struct mutex		ioctl_lock;
 	char			aen_clobber;
 	unsigned short		working_srl;
 	unsigned short		working_branch;
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 283f6d25892..25f678d0780 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -203,6 +203,7 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/time.h>
+#include <linux/mutex.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
@@ -888,7 +889,7 @@ static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
 	dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl()\n");
 
 	/* Only let one of these through at a time */
-	if (down_interruptible(&tw_dev->ioctl_sem))
+	if (mutex_lock_interruptible(&tw_dev->ioctl_lock))
 		return -EINTR;
 
 	/* First copy down the buffer length */
@@ -1029,7 +1030,7 @@ out2:
 	/* Now free ioctl buf memory */
 	dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle);
 out:
-	up(&tw_dev->ioctl_sem);
+	mutex_unlock(&tw_dev->ioctl_lock);
 	return retval;
 } /* End tw_chrdev_ioctl() */
 
@@ -1270,7 +1271,7 @@ static int tw_initialize_device_extension(TW_Device_Extension *tw_dev)
 	tw_dev->pending_tail = TW_Q_START;
 	tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
 
-	init_MUTEX(&tw_dev->ioctl_sem);
+	mutex_init(&tw_dev->ioctl_lock);
 	init_waitqueue_head(&tw_dev->ioctl_wqueue);
 
 	return 0;
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index 4f81fc39ec5..31fe5ea1592 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -420,7 +420,7 @@ typedef struct TAG_TW_Device_Extension {
 	u32			max_sector_count;
 	u32			aen_count;
 	struct Scsi_Host	*host;
-	struct semaphore	ioctl_sem;
+	struct mutex		ioctl_lock;
 	unsigned short		aen_queue[TW_Q_LENGTH];
 	unsigned char		aen_head;
 	unsigned char		aen_tail;
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 9d6040bfa06..1c459343292 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2216,6 +2216,7 @@ static int __init BusLogic_init(void)
 		HostAdapter->PCI_Address = ProbeInfo->PCI_Address;
 		HostAdapter->Bus = ProbeInfo->Bus;
 		HostAdapter->Device = ProbeInfo->Device;
+		HostAdapter->PCI_Device = ProbeInfo->PCI_Device;
 		HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel;
 		HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType];
 		/*
@@ -2296,7 +2297,7 @@ static int __init BusLogic_init(void)
 				scsi_host_put(Host);
 			} else {
 				BusLogic_InitializeHostStructure(HostAdapter, Host);
-				scsi_add_host(Host, NULL);
+				scsi_add_host(Host, HostAdapter->PCI_Device ? &HostAdapter->PCI_Device->dev : NULL);
 				scsi_scan_host(Host);
 				BusLogicHostAdapterCount++;
 			}
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 6e0c059df6a..320e765fa0c 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -80,7 +80,7 @@ obj-$(CONFIG_SCSI_QLOGIC_FAS)	+= qlogicfas408.o	qlogicfas.o
 obj-$(CONFIG_PCMCIA_QLOGIC)	+= qlogicfas408.o
 obj-$(CONFIG_SCSI_QLOGIC_FC)	+= qlogicfc.o 
 obj-$(CONFIG_SCSI_QLOGIC_1280)	+= qla1280.o 
-obj-$(CONFIG_SCSI_QLA2XXX)	+= qla2xxx/
+obj-$(CONFIG_SCSI_QLA_FC)	+= qla2xxx/
 obj-$(CONFIG_SCSI_LPFC)		+= lpfc/
 obj-$(CONFIG_SCSI_PAS16)	+= pas16.o
 obj-$(CONFIG_SCSI_SEAGATE)	+= seagate.o
diff --git a/drivers/scsi/aacraid/README b/drivers/scsi/aacraid/README
deleted file mode 100644
index 4193865d419..00000000000
--- a/drivers/scsi/aacraid/README
+++ /dev/null
@@ -1,74 +0,0 @@
-AACRAID Driver for Linux (take two)
-
-Introduction
--------------------------
-The aacraid driver adds support for Adaptec (http://www.adaptec.com)
-RAID controllers. This is a major rewrite from the original 
-Adaptec supplied driver. It has signficantly cleaned up both the code
-and the running binary size (the module is less than half the size of
-the original).
-
-Supported Cards/Chipsets
--------------------------
-	Adaptec 2020S
-	Adaptec 2025S
-	Adaptec 2120S
-	Adaptec 2130S
-	Adaptec 2200S
-	Adaptec 2230S
-	Adaptec 2240S
-	Adaptec 2410SA
-	Adaptec 2610SA
-	Adaptec 2810SA
-	Adaptec 21610SA
-	Adaptec 3230S
-	Adaptec 3240S
-	Adaptec 4000SAS
-	Adaptec 4005SAS
-	Adaptec 4800SAS
-	Adaptec 4805SAS
-	Adaptec 5400S
-	Dell PERC 2 Quad Channel
-	Dell PERC 2/Si
-	Dell PERC 3/Si
-	Dell PERC 3/Di
-	Dell CERC 2
-	HP NetRAID-4M
-	Legend S220
-	Legend S230
-	IBM ServeRAID 8i
-	ICP 9014R0
-	ICP 9024R0
-	ICP 9047MA
-	ICP 9087MA
-	ICP 9085LI
-	ICP 5085AU
-
-People
--------------------------
-Alan Cox <alan@redhat.com>
-Christoph Hellwig <hch@infradead.org>	(updates for new-style PCI probing and SCSI host registration,
-					 small cleanups/fixes)
-Matt Domsch <matt_domsch@dell.com>	(revision ioctl, adapter messages)
-Deanna Bonds                            (non-DASD support, PAE fibs and 64 bit, added new adaptec controllers
-					 added new ioctls, changed scsi interface to use new error handler,
-					 increased the number of fibs and outstanding commands to a container)
-
-					(fixed 64bit and 64G memory model, changed confusing naming convention
-					 where fibs that go to the hardware are consistently called hw_fibs and
-					 not just fibs like the name of the driver tracking structure)
-Mark Salyzyn <Mark_Salyzyn@adaptec.com> Fixed panic issues and added some new product ids for upcoming hbas. Performance tuning, card failover and bug mitigations.
-
-Original Driver
--------------------------
-Adaptec Unix OEM Product Group
-
-Mailing List
--------------------------
-linux-scsi@vger.kernel.org (Interested parties troll here)
-Also note this is very different to Brian's original driver
-so don't expect him to support it.
-Adaptec does support this driver.  Contact either tech support or Mark Salyzyn.
-
-Original by Brian Boerner February 2001
-Rewritten by Alan Cox, November 2001
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 30fd8d6e3f3..66dbb6d2c50 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -532,6 +532,13 @@ struct aac_driver_ident
 #define AAC_QUIRK_MASTER 0x0008
 
 /*
+ * Some adapter firmware perform poorly when it must split up scatter gathers
+ * in order to deal with the limits of the underlying CHIM. This limit in this
+ * class of adapters is 17 scatter gather elements.
+ */
+#define AAC_QUIRK_17SG	0x0010
+
+/*
  *	The adapter interface specs all queues to be located in the same
  *	physically contigous block. The host structure that defines the
  *	commuication queues will assume they are each a separate physically
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index ef623bd965f..4fe79cd7c95 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -85,6 +85,10 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
 	if (size < le16_to_cpu(kfib->header.SenderSize))
 		size = le16_to_cpu(kfib->header.SenderSize);
 	if (size > dev->max_fib_size) {
+		if (size > 2048) {
+			retval = -EINVAL;
+			goto cleanup;
+		}
 		/* Highjack the hw_fib */
 		hw_fib = fibptr->hw_fib;
 		hw_fib_pa = fibptr->hw_fib_pa;
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 9b9062f0246..0bf5f9a943e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -200,10 +200,10 @@ static struct aac_driver_ident aac_drivers[] = {
 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "Callisto        ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020SA       ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025SA       ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
-	{ aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
+	{ aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2026ZCR     ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2610SA      ", 1 }, /* SATA 6Ch (Bearcat) */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2240S       ", 1 }, /* ASR-2240S (SabreExpress) */
@@ -574,7 +574,15 @@ static ssize_t aac_show_model(struct class_device *class_dev,
 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
 	int len;
 
-	len = snprintf(buf, PAGE_SIZE, "%s\n",
+	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
+		char * cp = dev->supplement_adapter_info.AdapterTypeText;
+		while (*cp && *cp != ' ')
+			++cp;
+		while (*cp == ' ')
+			++cp;
+		len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
+	} else
+		len = snprintf(buf, PAGE_SIZE, "%s\n",
 		  aac_drivers[dev->cardtype].model);
 	return len;
 }
@@ -585,7 +593,15 @@ static ssize_t aac_show_vendor(struct class_device *class_dev,
 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
 	int len;
 
-	len = snprintf(buf, PAGE_SIZE, "%s\n",
+	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
+		char * cp = dev->supplement_adapter_info.AdapterTypeText;
+		while (*cp && *cp != ' ')
+			++cp;
+		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
+		  (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
+		  dev->supplement_adapter_info.AdapterTypeText);
+	} else
+		len = snprintf(buf, PAGE_SIZE, "%s\n",
 		  aac_drivers[dev->cardtype].vname);
 	return len;
 }
@@ -837,6 +853,13 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
  		  = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
  	}
 
+ 	if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
+			(aac->scsi_host_ptr->sg_tablesize > 17)) {
+ 		aac->scsi_host_ptr->sg_tablesize = 17;
+ 		aac->scsi_host_ptr->max_sectors
+ 		  = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
+ 	}
+
 	/*
 	 * Firware printf works only with older firmware.
 	 */
diff --git a/drivers/scsi/aic7xxx/Kconfig.aic7xxx b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
index ac8de03c9fa..6c2c395554f 100644
--- a/drivers/scsi/aic7xxx/Kconfig.aic7xxx
+++ b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
@@ -42,13 +42,13 @@ config AIC7XXX_CMDS_PER_DEVICE
 config AIC7XXX_RESET_DELAY_MS
 	int "Initial bus reset delay in milli-seconds"
 	depends on SCSI_AIC7XXX
-	default "15000"
+	default "5000"
 	---help---
 	The number of milliseconds to delay after an initial bus reset.
 	The bus settle delay following all error recovery actions is
 	dictated by the SCSI layer and is not affected by this value.
 
-	Default: 15000 (15 seconds)
+	Default: 5000 (5 seconds)
 
 config AIC7XXX_PROBE_EISA_VL
 	bool "Probe for EISA and VL AIC7XXX Adapters"
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index 653fb0b42ae..2cfdbef447d 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -37,7 +37,7 @@
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGES.
  *
- * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#95 $
+ * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#108 $
  *
  * $FreeBSD$
  */
@@ -75,8 +75,7 @@ struct scb_platform_data;
 #define INITIATOR_WILDCARD	(~0)
 #define	SCB_LIST_NULL		0xFF00
 #define	SCB_LIST_NULL_LE	(ahd_htole16(SCB_LIST_NULL))
-#define QOUTFIFO_ENTRY_VALID 0x8000
-#define QOUTFIFO_ENTRY_VALID_LE (ahd_htole16(0x8000))
+#define QOUTFIFO_ENTRY_VALID 0x80
 #define SCBID_IS_NULL(scbid) (((scbid) & 0xFF00 ) == SCB_LIST_NULL)
 
 #define SCSIID_TARGET(ahd, scsiid)	\
@@ -1053,6 +1052,13 @@ typedef uint8_t ahd_mode_state;
 
 typedef void ahd_callback_t (void *);
 
+struct ahd_completion
+{
+	uint16_t	tag;
+	uint8_t		sg_status;
+	uint8_t		valid_tag;
+};
+
 struct ahd_softc {
 	bus_space_tag_t           tags[2];
 	bus_space_handle_t        bshs[2];
@@ -1062,6 +1068,7 @@ struct ahd_softc {
 	struct scb_data		  scb_data;
 
 	struct hardware_scb	 *next_queued_hscb;
+	struct map_node		 *next_queued_hscb_map;
 
 	/*
 	 * SCBs that have been sent to the controller
@@ -1140,16 +1147,23 @@ struct ahd_softc {
 	ahd_flag		  flags;
 	struct seeprom_config	 *seep_config;
 
-	/* Values to store in the SEQCTL register for pause and unpause */
-	uint8_t			  unpause;
-	uint8_t			  pause;
-
 	/* Command Queues */
+	struct ahd_completion	  *qoutfifo;
 	uint16_t		  qoutfifonext;
 	uint16_t		  qoutfifonext_valid_tag;
 	uint16_t		  qinfifonext;
 	uint16_t		  qinfifo[AHD_SCB_MAX];
-	uint16_t		 *qoutfifo;
+
+	/*
+	 * Our qfreeze count.  The sequencer compares
+	 * this value with its own counter to determine
+	 * whether to allow selections to occur.
+	 */
+	uint16_t		  qfreeze_cnt;
+
+	/* Values to store in the SEQCTL register for pause and unpause */
+	uint8_t			  unpause;
+	uint8_t			  pause;
 
 	/* Critical Section Data */
 	struct cs		 *critical_sections;
@@ -1197,8 +1211,7 @@ struct ahd_softc {
 	 */
 	bus_dma_tag_t		  parent_dmat;
 	bus_dma_tag_t		  shared_data_dmat;
-	bus_dmamap_t		  shared_data_dmamap;
-	dma_addr_t		  shared_data_busaddr;
+	struct map_node		  shared_data_map;
 
 	/* Information saved through suspend/resume cycles */
 	struct ahd_suspend_state  suspend_state;
@@ -1296,9 +1309,9 @@ struct ahd_devinfo {
 };
 
 /****************************** PCI Structures ********************************/
-#define AHD_PCI_IOADDR0	PCIR_MAPS	/* I/O BAR*/
-#define AHD_PCI_MEMADDR	(PCIR_MAPS + 4)	/* Memory BAR */
-#define AHD_PCI_IOADDR1	(PCIR_MAPS + 12)/* Second I/O BAR */
+#define AHD_PCI_IOADDR0	PCIR_BAR(0)	/* I/O BAR*/
+#define AHD_PCI_MEMADDR	PCIR_BAR(1)	/* Memory BAR */
+#define AHD_PCI_IOADDR1	PCIR_BAR(3)	/* Second I/O BAR */
 
 typedef int (ahd_device_setup_t)(struct ahd_softc *);
 
diff --git a/drivers/scsi/aic7xxx/aic79xx.reg b/drivers/scsi/aic7xxx/aic79xx.reg
index cca58edc864..3a3204703b1 100644
--- a/drivers/scsi/aic7xxx/aic79xx.reg
+++ b/drivers/scsi/aic7xxx/aic79xx.reg
@@ -39,7 +39,7 @@
  *
  * $FreeBSD$
  */
-VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#70 $"
+VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#76 $"
 
 /*
  * This file is processed by the aic7xxx_asm utility for use in assembling
@@ -65,13 +65,6 @@ VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#70 $"
 		mvi	MODE_PTR, MK_MODE(src, dst);			\
 	}
 
-#define TOGGLE_DFF_MODE							\
-	if ((ahd->bugs & AHD_SET_MODE_BUG) != 0) {			\
-		call	toggle_dff_mode_work_around;			\
-	} else {							\
-		xor	MODE_PTR, MK_MODE(M_DFF1, M_DFF1);		\
-	}
-	
 #define RESTORE_MODE(mode)						\
 	if ((ahd->bugs & AHD_SET_MODE_BUG) != 0) {			\
 		mov	mode call set_mode_work_around;			\
@@ -1199,7 +1192,7 @@ register TARGPCISTAT {
 
 /*
  * LQ Packet In
- * The last LQ Packet received
+ * The last LQ Packet recieved
  */
 register LQIN {
 	address			0x020
@@ -3542,10 +3535,34 @@ scratch_ram {
 	COMPLETE_DMA_SCB_HEAD {
 		size		2
 	}
-	/* Counting semaphore to prevent new select-outs */
+	/*
+	 * tail of list of SCBs that have
+	 * completed but need to be uploaded
+	 * to the host prior to being completed.
+	 */
+	COMPLETE_DMA_SCB_TAIL {
+		size		2
+	}
+	/*
+	 * head of list of SCBs that have
+	 * been uploaded to the host, but cannot
+	 * be completed until the QFREEZE is in
+	 * full effect (i.e. no selections pending).
+	 */
+	COMPLETE_ON_QFREEZE_HEAD {
+		size		2
+	}
+	/*
+	 * Counting sem