[SCSI] arcmsr: 1.20.00.15: add SATA RAID plus other fixes

Description:
** support ARC1200/1201/1202 SATA RAID adapter, which is named
ACB_ADAPTER_TYPE_B
** modify the arcmsr_pci_slot_reset function
** modify the arcmsr_pci_ers_disconnect_forepart function
** modify the arcmsr_pci_ers_need_reset_forepart function 

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

3 files changed, 1527 insertions, 978 deletions

diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index f0b8bf4534f0..ace7a15b413e 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -9,7 +9,7 @@
 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved.
 **
 **     Web site: www.areca.com.tw
-**       E-mail: erich@areca.com.tw
+**       E-mail: support@areca.com.tw
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License version 2 as
@@ -45,19 +45,26 @@
 #include <linux/interrupt.h>
 
 struct class_device_attribute;
-
-#define ARCMSR_MAX_OUTSTANDING_CMD 						256
-#define ARCMSR_MAX_FREECCB_NUM							288
-#define ARCMSR_DRIVER_VERSION				"Driver Version 1.20.00.14"
+/*The limit of outstanding scsi command that firmware can handle*/
+#define ARCMSR_MAX_OUTSTANDING_CMD						256
+#define ARCMSR_MAX_FREECCB_NUM							320
+#define ARCMSR_DRIVER_VERSION		     "Driver Version 1.20.00.15 2007/08/30"
 #define ARCMSR_SCSI_INITIATOR_ID						255
 #define ARCMSR_MAX_XFER_SECTORS							512
-#define ARCMSR_MAX_XFER_SECTORS_B                                              4096
-#define ARCMSR_MAX_TARGETID							 17
-#define ARCMSR_MAX_TARGETLUN							  8
-#define ARCMSR_MAX_CMD_PERLUN				 ARCMSR_MAX_OUTSTANDING_CMD
-#define ARCMSR_MAX_QBUFFER						       4096
-#define ARCMSR_MAX_SG_ENTRIES							 38
-
+#define ARCMSR_MAX_XFER_SECTORS_B						4096
+#define ARCMSR_MAX_TARGETID							17
+#define ARCMSR_MAX_TARGETLUN							8
+#define ARCMSR_MAX_CMD_PERLUN		                 ARCMSR_MAX_OUTSTANDING_CMD
+#define ARCMSR_MAX_QBUFFER							4096
+#define ARCMSR_MAX_SG_ENTRIES							38
+#define ARCMSR_MAX_HBB_POSTQUEUE						264
+/*
+**********************************************************************************
+**
+**********************************************************************************
+*/
+#define ARC_SUCCESS                                                       0
+#define ARC_FAILURE                                                       1
 /*
 *******************************************************************************
 **        split 64bits dma addressing
@@ -90,7 +97,7 @@ struct CMD_MESSAGE_FIELD
     uint8_t				messagedatabuffer[1032];
 };
 /* IOP message transfer */
-#define ARCMSR_MESSAGE_FAIL             0x0001
+#define ARCMSR_MESSAGE_FAIL			0x0001
 /* DeviceType */
 #define ARECA_SATA_RAID				0x90000000
 /* FunctionCode */
@@ -163,27 +170,27 @@ struct QBUFFER
 };
 /*
 *******************************************************************************
-**      FIRMWARE INFO
+**      FIRMWARE INFO for Intel IOP R 80331 processor (Type A)
 *******************************************************************************
 */
 struct FIRMWARE_INFO
 {
-	uint32_t      signature;                /*0, 00-03*/
-	uint32_t      request_len;              /*1, 04-07*/
-	uint32_t      numbers_queue;            /*2, 08-11*/
+	uint32_t      signature;		/*0, 00-03*/
+	uint32_t      request_len;		/*1, 04-07*/
+	uint32_t      numbers_queue;		/*2, 08-11*/
 	uint32_t      sdram_size;               /*3, 12-15*/
-	uint32_t      ide_channels;             /*4, 16-19*/
-	char          vendor[40];               /*5, 20-59*/
-	char          model[8];                 /*15, 60-67*/
-	char          firmware_ver[16];         /*17, 68-83*/
-	char          device_map[16];           /*21, 84-99*/
+	uint32_t      ide_channels;		/*4, 16-19*/
+	char          vendor[40];		/*5, 20-59*/
+	char          model[8];			/*15, 60-67*/
+	char          firmware_ver[16];     	/*17, 68-83*/
+	char          device_map[16];		/*21, 84-99*/
 };
 /* signature of set and get firmware config */
-#define ARCMSR_SIGNATURE_GET_CONFIG                   0x87974060
-#define ARCMSR_SIGNATURE_SET_CONFIG                   0x87974063
+#define ARCMSR_SIGNATURE_GET_CONFIG		      0x87974060
+#define ARCMSR_SIGNATURE_SET_CONFIG		      0x87974063
 /* message code of inbound message register */
-#define ARCMSR_INBOUND_MESG0_NOP                      0x00000000
-#define ARCMSR_INBOUND_MESG0_GET_CONFIG               0x00000001
+#define ARCMSR_INBOUND_MESG0_NOP		      0x00000000
+#define ARCMSR_INBOUND_MESG0_GET_CONFIG		      0x00000001
 #define ARCMSR_INBOUND_MESG0_SET_CONFIG               0x00000002
 #define ARCMSR_INBOUND_MESG0_ABORT_CMD                0x00000003
 #define ARCMSR_INBOUND_MESG0_STOP_BGRB                0x00000004
@@ -203,6 +210,60 @@ struct FIRMWARE_INFO
 #define ARCMSR_CCBREPLY_FLAG_ERROR                    0x10000000
 /* outbound firmware ok */
 #define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK             0x80000000
+
+/*
+************************************************************************
+**                SPEC. for Areca Type B adapter
+************************************************************************
+*/
+/* ARECA HBB COMMAND for its FIRMWARE */
+/* window of "instruction flags" from driver to iop */
+#define ARCMSR_DRV2IOP_DOORBELL                       0x00020400
+#define ARCMSR_DRV2IOP_DOORBELL_MASK                  0x00020404
+/* window of "instruction flags" from iop to driver */
+#define ARCMSR_IOP2DRV_DOORBELL                       0x00020408
+#define ARCMSR_IOP2DRV_DOORBELL_MASK                  0x0002040C
+/* ARECA FLAG LANGUAGE */
+/* ioctl transfer */
+#define ARCMSR_IOP2DRV_DATA_WRITE_OK                  0x00000001
+/* ioctl transfer */
+#define ARCMSR_IOP2DRV_DATA_READ_OK                   0x00000002
+#define ARCMSR_IOP2DRV_CDB_DONE                       0x00000004
+#define ARCMSR_IOP2DRV_MESSAGE_CMD_DONE               0x00000008
+
+#define ARCMSR_DOORBELL_HANDLE_INT		      0x0000000F
+#define ARCMSR_DOORBELL_INT_CLEAR_PATTERN   	      0xFF00FFF0
+#define ARCMSR_MESSAGE_INT_CLEAR_PATTERN	      0xFF00FFF7
+/* (ARCMSR_INBOUND_MESG0_GET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_GET_CONFIG		      0x00010008
+/* (ARCMSR_INBOUND_MESG0_SET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_SET_CONFIG		      0x00020008
+/* (ARCMSR_INBOUND_MESG0_ABORT_CMD<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_ABORT_CMD		      0x00030008
+/* (ARCMSR_INBOUND_MESG0_STOP_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_STOP_BGRB		      0x00040008
+/* (ARCMSR_INBOUND_MESG0_FLUSH_CACHE<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_FLUSH_CACHE                    0x00050008
+/* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
+#define ARCMSR_MESSAGE_START_BGRB		      0x00060008
+#define ARCMSR_MESSAGE_START_DRIVER_MODE	      0x000E0008
+#define ARCMSR_MESSAGE_SET_POST_WINDOW		      0x000F0008
+/* ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK */
+#define ARCMSR_MESSAGE_FIRMWARE_OK		      0x80000000
+/* ioctl transfer */
+#define ARCMSR_DRV2IOP_DATA_WRITE_OK                  0x00000001
+/* ioctl transfer */
+#define ARCMSR_DRV2IOP_DATA_READ_OK                   0x00000002
+#define ARCMSR_DRV2IOP_CDB_POSTED                     0x00000004
+#define ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED             0x00000008
+
+/* data tunnel buffer between user space program and its firmware */
+/* user space data to iop 128bytes */
+#define ARCMSR_IOCTL_WBUFFER			      0x0000fe00
+/* iop data to user space 128bytes */
+#define ARCMSR_IOCTL_RBUFFER			      0x0000ff00
+/* iop message_rwbuffer for message command */
+#define ARCMSR_MSGCODE_RWBUFFER			      0x0000fa00
 /*
 *******************************************************************************
 **    ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
@@ -214,7 +275,6 @@ struct ARCMSR_CDB
 	uint8_t							TargetID;
 	uint8_t							LUN;
 	uint8_t							Function;
-
 	uint8_t							CdbLength;
 	uint8_t							sgcount;
 	uint8_t							Flags;
@@ -224,20 +284,18 @@ struct ARCMSR_CDB
 #define ARCMSR_CDB_FLAG_SIMPLEQ            0x00
 #define ARCMSR_CDB_FLAG_HEADQ              0x08
 #define ARCMSR_CDB_FLAG_ORDEREDQ           0x10
-	uint8_t							Reserved1;
 
+	uint8_t							Reserved1;
 	uint32_t						Context;
 	uint32_t						DataLength;
-
 	uint8_t							Cdb[16];
-
 	uint8_t							DeviceStatus;
-#define ARCMSR_DEV_CHECK_CONDITION          0x02
-#define ARCMSR_DEV_SELECT_TIMEOUT			0xF0
-#define ARCMSR_DEV_ABORTED				0xF1
-#define ARCMSR_DEV_INIT_FAIL				0xF2
-	uint8_t							SenseData[15];
+#define ARCMSR_DEV_CHECK_CONDITION	    0x02
+#define ARCMSR_DEV_SELECT_TIMEOUT	    0xF0
+#define ARCMSR_DEV_ABORTED		    0xF1
+#define ARCMSR_DEV_INIT_FAIL		    0xF2
 
+	uint8_t							SenseData[15];
 	union
 	{
 		struct SG32ENTRY                sg32entry[ARCMSR_MAX_SG_ENTRIES];
@@ -246,10 +304,10 @@ struct ARCMSR_CDB
 };
 /*
 *******************************************************************************
-**     Messaging Unit (MU) of the Intel R 80331 I/O processor (80331)
+**     Messaging Unit (MU) of the Intel R 80331 I/O processor(Type A) and Type B processor
 *******************************************************************************
 */
-struct MessageUnit
+struct MessageUnit_A
 {
 	uint32_t	resrved0[4];			/*0000 000F*/
 	uint32_t	inbound_msgaddr0;		/*0010 0013*/
@@ -274,6 +332,30 @@ struct MessageUnit
 	uint32_t	message_rbuffer[32];		/*0F00 0F7F  32*/
 	uint32_t	reserved6[32];			/*0F80 0FFF  32*/
 };
+
+struct MessageUnit_B
+{
+	uint32_t	post_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
+	uint32_t	done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
+	uint32_t	postq_index;
+	uint32_t	doneq_index;
+	uint32_t	*drv2iop_doorbell_reg;
+	uint32_t	*drv2iop_doorbell_mask_reg;
+	uint32_t	*iop2drv_doorbell_reg;
+	uint32_t	*iop2drv_doorbell_mask_reg;
+	uint32_t	*msgcode_rwbuffer_reg;
+	uint32_t	*ioctl_wbuffer_reg;
+	uint32_t	*ioctl_rbuffer_reg;
+};
+
+struct MessageUnit
+{
+	union
+	{
+		struct MessageUnit_A	pmu_A;
+		struct MessageUnit_B	pmu_B;
+	} u;
+};
 /*
 *******************************************************************************
 **                 Adapter Control Block
@@ -281,37 +363,45 @@ struct MessageUnit
 */
 struct AdapterControlBlock
 {
+	uint32_t  adapter_type;                /* adapter A,B..... */
+	#define ACB_ADAPTER_TYPE_A            0x00000001	/* hba I IOP */
+	#define ACB_ADAPTER_TYPE_B            0x00000002	/* hbb M IOP */
+	#define ACB_ADAPTER_TYPE_C            0x00000004	/* hbc P IOP */
+	#define ACB_ADAPTER_TYPE_D            0x00000008	/* hbd A IOP */
 	struct pci_dev *		pdev;
 	struct Scsi_Host *		host;
 	unsigned long			vir2phy_offset;
 	/* Offset is used in making arc cdb physical to virtual calculations */
 	uint32_t			outbound_int_enable;
 
-	struct MessageUnit __iomem *		pmu;
+	struct MessageUnit *			pmu;
 	/* message unit ATU inbound base address0 */
 
 	uint32_t			acb_flags;
-#define ACB_F_SCSISTOPADAPTER         0x0001
-#define ACB_F_MSG_STOP_BGRB           0x0002
+	#define ACB_F_SCSISTOPADAPTER         	0x0001
+	#define ACB_F_MSG_STOP_BGRB     	0x0002
 	/* stop RAID background rebuild */
-#define ACB_F_MSG_START_BGRB          0x0004
+	#define ACB_F_MSG_START_BGRB          	0x0004
 	/* stop RAID background rebuild */
-#define ACB_F_IOPDATA_OVERFLOW        0x0008
+	#define ACB_F_IOPDATA_OVERFLOW        	0x0008
 	/* iop message data rqbuffer overflow */
-#define ACB_F_MESSAGE_WQBUFFER_CLEARED  0x0010
+	#define ACB_F_MESSAGE_WQBUFFER_CLEARED	0x0010
 	/* message clear wqbuffer */
-#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
+	#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
 	/* message clear rqbuffer */
-#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
-#define ACB_F_BUS_RESET               0x0080
-#define ACB_F_IOP_INITED              0x0100
+	#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
+	#define ACB_F_BUS_RESET               	0x0080
+	#define ACB_F_IOP_INITED              	0x0100
 	/* iop init */
 
 	struct CommandControlBlock *			pccb_pool[ARCMSR_MAX_FREECCB_NUM];
 	/* used for memory free */
 	struct list_head		ccb_free_list;
 	/* head of free ccb list */
+
 	atomic_t			ccboutstandingcount;
+	/*The present outstanding command number that in the IOP that
+					waiting for being handled by FW*/
 
 	void *				dma_coherent;
 	/* dma_coherent used for memory free */
@@ -353,7 +443,7 @@ struct CommandControlBlock
 {
 	struct ARCMSR_CDB		arcmsr_cdb;
 	/*
-	** 0-503 (size of CDB=504):
+	** 0-503 (size of CDB = 504):
 	** arcmsr messenger scsi command descriptor size 504 bytes
 	*/
 	uint32_t			cdb_shifted_phyaddr;
@@ -466,7 +556,9 @@ struct SENSE_DATA
 #define     ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE               0x01
 #define     ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE                    0x1F
 
-extern void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb);
+extern void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *);
+extern void arcmsr_iop_message_read(struct AdapterControlBlock *);
+extern struct QBUFFER *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *);
 extern struct class_device_attribute *arcmsr_host_attrs[];
-extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb);
+extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *);
 void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);
diff --git a/drivers/scsi/arcmsr/arcmsr_attr.c b/drivers/scsi/arcmsr/arcmsr_attr.c
index 06c0dce3b839..0f0a1ae99434 100644
--- a/drivers/scsi/arcmsr/arcmsr_attr.c
+++ b/drivers/scsi/arcmsr/arcmsr_attr.c
@@ -8,7 +8,7 @@
 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
 **
 **     Web site: www.areca.com.tw
-**       E-mail: erich@areca.com.tw
+**       E-mail: support@areca.com.tw
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License version 2 as
@@ -49,6 +49,7 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
+#include <linux/pci.h>
 
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -58,15 +59,11 @@
 
 struct class_device_attribute *arcmsr_host_attrs[];
 
-static ssize_t
-arcmsr_sysfs_iop_message_read(struct kobject *kobj,
-			      struct bin_attribute *bin_attr,
-			      char *buf, loff_t off, size_t count)
+static ssize_t arcmsr_sysfs_iop_message_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
-	struct MessageUnit __iomem *reg = acb->pmu;
 	uint8_t *pQbuffer,*ptmpQbuffer;
 	int32_t allxfer_len = 0;
 
@@ -85,12 +82,13 @@ arcmsr_sysfs_iop_message_read(struct kobject *kobj,
 		allxfer_len++;
 	}
 	if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
-		struct QBUFFER __iomem * prbuffer = (struct QBUFFER __iomem *)
-					&reg->message_rbuffer;
-		uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data;
+		struct QBUFFER *prbuffer;
+		uint8_t *iop_data;
 		int32_t iop_len;
 
 		acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
+		prbuffer = arcmsr_get_iop_rqbuffer(acb);
+		iop_data = (uint8_t *)prbuffer->data;
 		iop_len = readl(&prbuffer->data_len);
 		while (iop_len > 0) {
 			acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
@@ -99,16 +97,12 @@ arcmsr_sysfs_iop_message_read(struct kobject *kobj,
 			iop_data++;
 			iop_len--;
 		}
-		writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
-				&reg->inbound_doorbell);
+		arcmsr_iop_message_read(acb);
 	}
 	return (allxfer_len);
 }
 
-static ssize_t
-arcmsr_sysfs_iop_message_write(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buf, loff_t off, size_t count)
+static ssize_t arcmsr_sysfs_iop_message_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
@@ -126,7 +120,7 @@ arcmsr_sysfs_iop_message_write(struct kobject *kobj,
 	wqbuf_lastindex = acb->wqbuf_lastindex;
 	wqbuf_firstindex = acb->wqbuf_firstindex;
 	if (wqbuf_lastindex != wqbuf_firstindex) {
-		arcmsr_post_Qbuffer(acb);
+		arcmsr_post_ioctldata2iop(acb);
 		return 0;	/*need retry*/
 	} else {
 		my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
@@ -144,7 +138,7 @@ arcmsr_sysfs_iop_message_write(struct kobject *kobj,
 			if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
 				acb->acb_flags &=
 					~ACB_F_MESSAGE_WQBUFFER_CLEARED;
-				arcmsr_post_Qbuffer(acb);
+				arcmsr_post_ioctldata2iop(acb);
 			}
 			return count;
 		} else {
@@ -153,15 +147,11 @@ arcmsr_sysfs_iop_message_write(struct kobject *kobj,
 	}
 }
 
-static ssize_t
-arcmsr_sysfs_iop_message_clear(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buf, loff_t off, size_t count)
+static ssize_t arcmsr_sysfs_iop_message_clear(struct kobject *kobj, char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
-	struct MessageUnit __iomem *reg = acb->pmu;
 	uint8_t *pQbuffer;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -169,8 +159,7 @@ arcmsr_sysfs_iop_message_clear(struct kobject *kobj,
 
 	if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
 		acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
-		writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK
-				, &reg->inbound_doorbell);
+		arcmsr_iop_message_read(acb);
 	}
 	acb->acb_flags |=
 		(ACB_F_MESSAGE_WQBUFFER_CLEARED
@@ -191,6 +180,7 @@ static struct bin_attribute arcmsr_sysfs_message_read_attr = {
 	.attr = {
 		.name = "mu_read",
 		.mode = S_IRUSR ,
+		.owner = THIS_MODULE,
 	},
 	.size = 1032,
 	.read = arcmsr_sysfs_iop_message_read,
@@ -200,6 +190,7 @@ static struct bin_attribute arcmsr_sysfs_message_write_attr = {
 	.attr = {
 		.name = "mu_write",
 		.mode = S_IWUSR,
+		.owner = THIS_MODULE,
 	},
 	.size = 1032,
 	.write = arcmsr_sysfs_iop_message_write,
@@ -209,6 +200,7 @@ static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
 	.attr = {
 		.name = "mu_clear",
 		.mode = S_IWUSR,
+		.owner = THIS_MODULE,
 	},
 	.size = 1,
 	.write = arcmsr_sysfs_iop_message_clear,
@@ -219,31 +211,26 @@ int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb)
 	struct Scsi_Host *host = acb->host;
 	int error;
 
-	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_read_attr);
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_read_attr);
 	if (error) {
 		printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n");
 		goto error_bin_file_message_read;
 	}
-	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_write_attr);
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_write_attr);
 	if (error) {
 		printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n");
 		goto error_bin_file_message_write;
 	}
-	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_clear_attr);
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_clear_attr);
 	if (error) {
 		printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n");
 		goto error_bin_file_message_clear;
 	}
 	return 0;
 error_bin_file_message_clear:
-	sysfs_remove_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_write_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_write_attr);
 error_bin_file_message_write:
-	sysfs_remove_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_read_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_read_attr);
 error_bin_file_message_read:
 	return error;
 }
@@ -252,12 +239,9 @@ void
 arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb) {
 	struct Scsi_Host *host = acb->host;
 
-	sysfs_remove_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_clear_attr);
-	sysfs_remove_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_write_attr);
-	sysfs_remove_bin_file(&host->shost_classdev.kobj,
-				&arcmsr_sysfs_message_read_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_clear_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_write_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj, &arcmsr_sysfs_message_read_attr);
 }
 
 
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 0ddfc21e9f7d..d70398ac64db 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -9,7 +9,7 @@
 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
 **
 **     Web site: www.areca.com.tw
-**       E-mail: erich@areca.com.tw
+**       E-mail: support@areca.com.tw
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License version 2 as
@@ -71,33 +71,37 @@
 #include <scsi/scsicam.h>
 #include "arcmsr.h"
 
-MODULE_AUTHOR("Erich Chen <erich@areca.com.tw>");
+MODULE_AUTHOR("Erich Chen <support@areca.com.tw>");
 MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST Adapter");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
 
-static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd);
+static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
+					struct scsi_cmnd *cmd);
+static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
 static int arcmsr_abort(struct scsi_cmnd *);
 static int arcmsr_bus_reset(struct scsi_cmnd *);
 static int arcmsr_bios_param(struct scsi_device *sdev,
-				struct block_device *bdev, sector_t capacity, int *info);
-static int arcmsr_queue_command(struct scsi_cmnd * cmd,
-				void (*done) (struct scsi_cmnd *));
+		struct block_device *bdev, sector_t capacity, int *info);
+static int arcmsr_queue_command(struct scsi_cmnd *cmd,
+					void (*done) (struct scsi_cmnd *));
 static int arcmsr_probe(struct pci_dev *pdev,
 				const struct pci_device_id *id);
 static void arcmsr_remove(struct pci_dev *pdev);
 static void arcmsr_shutdown(struct pci_dev *pdev);
 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
+static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
-static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
-static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb);
+static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
+static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
 static const char *arcmsr_info(struct Scsi_Host *);
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
 static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev,
 						pci_channel_state_t state);
 static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev);
-static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
+static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
+								int queue_depth)
 {
 	if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
 		queue_depth = ARCMSR_MAX_CMD_PERLUN;
@@ -123,17 +127,21 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= arcmsr_host_attrs,
 };
+#ifdef CONFIG_SCSI_ARCMSR_AER
 static struct pci_error_handlers arcmsr_pci_error_handlers = {
 	.error_detected		= arcmsr_pci_error_detected,
 	.slot_reset		= arcmsr_pci_slot_reset,
 };
-
+#endif
 static struct pci_device_id arcmsr_device_id_table[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
@@ -153,20 +161,20 @@ static struct pci_driver arcmsr_pci_driver = {
 	.probe			= arcmsr_probe,
 	.remove			= arcmsr_remove,
 	.shutdown		= arcmsr_shutdown,
+	#ifdef CONFIG_SCSI_ARCMSR_AER
 	.err_handler		= &arcmsr_pci_error_handlers,
+	#endif
 };
 
 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
 {
 	irqreturn_t handle_state;
-	struct AdapterControlBlock *acb;
-	unsigned long flags;
-
-	acb = (struct AdapterControlBlock *)dev_id;
+	struct AdapterControlBlock *acb = dev_id;
 
-	spin_lock_irqsave(acb->host->host_lock, flags);
+	spin_lock(acb->host->host_lock);
 	handle_state = arcmsr_interrupt(acb);
-	spin_unlock_irqrestore(acb->host->host_lock, flags);
+	spin_unlock(acb->host->host_lock);
+
 	return handle_state;
 }
 
@@ -198,68 +206,159 @@ static int arcmsr_bios_param(struct scsi_device *sdev,
 	return 0;
 }
 
-static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
+static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
 {
 	struct pci_dev *pdev = acb->pdev;
-	struct MessageUnit __iomem *reg = acb->pmu;
-	u32 ccb_phyaddr_hi32;
-	void *dma_coherent;
-	dma_addr_t dma_coherent_handle, dma_addr;
-	struct CommandControlBlock *ccb_tmp;
-	int i, j;
+	u16 dev_id;
+	pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
+	switch (dev_id) {
+	case 0x1201 : {
+		acb->adapter_type = ACB_ADAPTER_TYPE_B;
+		}
+		break;
+
+	default : acb->adapter_type = ACB_ADAPTER_TYPE_A;
+	}
+}
 
-	dma_coherent = dma_alloc_coherent(&pdev->dev,
+static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
+{
+
+	switch (acb->adapter_type) {
+
+	case ACB_ADAPTER_TYPE_A: {
+		struct pci_dev *pdev = acb->pdev;
+		void *dma_coherent;
+		dma_addr_t dma_coherent_handle, dma_addr;
+		struct CommandControlBlock *ccb_tmp;
+		uint32_t intmask_org;
+		int i, j;
+
+		acb->pmu = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
+		if (!acb->pmu) {
+			printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n",
+							acb->host->host_no);
+		}
+
+		dma_coherent = dma_alloc_coherent(&pdev->dev,
 			ARCMSR_MAX_FREECCB_NUM *
 			sizeof (struct CommandControlBlock) + 0x20,
 			&dma_coherent_handle, GFP_KERNEL);
-	if (!dma_coherent)
-		return -ENOMEM;
+		if (!dma_coherent)
+			return -ENOMEM;
 
-	acb->dma_coherent = dma_coherent;
-	acb->dma_coherent_handle = dma_coherent_handle;
+		acb->dma_coherent = dma_coherent;
+		acb->dma_coherent_handle = dma_coherent_handle;
 
-	if (((unsigned long)dma_coherent & 0x1F)) {
-		dma_coherent = dma_coherent +
-			(0x20 - ((unsigned long)dma_coherent & 0x1F));
-		dma_coherent_handle = dma_coherent_handle +
-			(0x20 - ((unsigned long)dma_coherent_handle & 0x1F));
-	}
+		if (((unsigned long)dma_coherent & 0x1F)) {
+			dma_coherent = dma_coherent +
+				(0x20 - ((unsigned long)dma_coherent & 0x1F));
+			dma_coherent_handle = dma_coherent_handle +
+				(0x20 - ((unsigned long)dma_coherent_handle & 0x1F));
+		}
 
-	dma_addr = dma_coherent_handle;
-	ccb_tmp = (struct CommandControlBlock *)dma_coherent;
-	for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
-		ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
-		ccb_tmp->acb = acb;
-		acb->pccb_pool[i] = ccb_tmp;
-		list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
-		dma_addr = dma_addr + sizeof (struct CommandControlBlock);
-		ccb_tmp++;
-	}
+		dma_addr = dma_coherent_handle;
+		ccb_tmp = (struct CommandControlBlock *)dma_coherent;
+		for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+			ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
+			ccb_tmp->acb = acb;
+			acb->pccb_pool[i] = ccb_tmp;
+			list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
+			dma_addr = dma_addr + sizeof(struct CommandControlBlock);
+			ccb_tmp++;
+		}
 
-	acb->vir2phy_offset = (unsigned long)ccb_tmp -
-			      (unsigned long)dma_addr;
-	for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
-		for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
-			acb->devstate[i][j] = ARECA_RAID_GOOD;
+		acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned long)dma_addr;
+		for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
+			for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
+				acb->devstate[i][j] = ARECA_RAID_GONE;
 
-	/*
-	** here we need to tell iop 331 our ccb_tmp.HighPart
-	** if ccb_tmp.HighPart is not zero
-	*/
-	ccb_phyaddr_hi32 = (uint32_t) ((dma_coherent_handle >> 16) >> 16);
-	if (ccb_phyaddr_hi32 != 0) {
-		writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->message_rwbuffer[0]);
-		writel(ccb_phyaddr_hi32, &reg->message_rwbuffer[1]);
-		writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
-		if (arcmsr_wait_msgint_ready(acb))
-			printk(KERN_NOTICE "arcmsr%d: "
-			       "'set ccb high part physical address' timeout\n",
-				acb->host->host_no);
-	}
+		/*
+		** here we need to tell iop 331 our ccb_tmp.HighPart
+		** if ccb_tmp.HighPart is not zero
+		*/
+		intmask_org = arcmsr_disable_outbound_ints(acb);
+		}
+		break;
+
+	case ACB_ADAPTER_TYPE_B: {
+
+		struct pci_dev *pdev = acb->pdev;
+		struct MessageUnit_B *reg;
+		void *mem_base0, *mem_base1;
+		void *dma_coherent;
+		dma_addr_t dma_coherent_handle, dma_addr;
+		uint32_t intmask_org;
+		struct CommandControlBlock *ccb_tmp;
+		int i, j;
+
+		dma_coherent = dma_alloc_coherent(&pdev->dev,
+			((ARCMSR_MAX_FREECCB_NUM *
+			sizeof(struct CommandControlBlock) + 0x20) +
+			sizeof(struct MessageUnit_B)),
+			&dma_coherent_handle, GFP_KERNEL);
+		if (!dma_coherent)
+			return -ENOMEM;
 
-	writel(readl(&reg->outbound_intmask) |
-			ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
-	       &reg->outbound_intmask);
+		acb->dma_coherent = dma_coherent;
+		acb->dma_coherent_handle = dma_coherent_handle;
+
+		if (((unsigned long)dma_coherent & 0x1F)) {
+			dma_coherent = dma_coherent +
+				(0x20 - ((unsigned long)dma_coherent & 0x1F));
+			dma_coherent_handle = dma_coherent_handle +
+				(0x20 - ((unsigned long)dma_coherent_handle & 0x1F));
+		}
+
+		reg = (struct MessageUnit_B *)(dma_coherent +
+		ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock));
+
+		dma_addr = dma_coherent_handle;
+		ccb_tmp = (struct CommandControlBlock *)dma_coherent;
+		for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+			ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
+			ccb_tmp->acb = acb;
+			acb->pccb_pool[i] = ccb_tmp;
+			list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
+			dma_addr = dma_addr + sizeof(struct CommandControlBlock);
+			ccb_tmp++;
+		}
+
+		reg = (struct MessageUnit_B *)(dma_coherent +
+		ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock));
+		acb->pmu = (struct MessageUnit_B *)reg;
+		mem_base0 = ioremap(pci_resource_start(pdev, 0),
+					pci_resource_len(pdev, 0));
+		mem_base1 = ioremap(pci_resource_start(pdev, 2),
+					pci_resource_len(pdev, 2));
+		reg->drv2iop_doorbell_reg = (uint32_t *)((char *)mem_base0 +
+						ARCMSR_DRV2IOP_DOORBELL);
+		reg->drv2iop_doorbell_mask_reg = (uint32_t *)((char *)mem_base0 +
+						ARCMSR_DRV2IOP_DOORBELL_MASK);
+		reg->iop2drv_doorbell_reg = (uint32_t *)((char *)mem_base0 +
+							ARCMSR_IOP2DRV_DOORBELL);
+		reg->iop2drv_doorbell_mask_reg = (uint32_t *)((char *)mem_base0 +
+						ARCMSR_IOP2DRV_DOORBELL_MASK);
+		reg->ioctl_wbuffer_reg = (uint32_t *)((char *)mem_base1 +
+							ARCMSR_IOCTL_WBUFFER);
+		reg->ioctl_rbuffer_reg = (uint32_t *)((char *)mem_base1 +
+							ARCMSR_IOCTL_RBUFFER);
+		reg->msgcode_rwbuffer_reg = (uint32_t *)((char *)mem_base1 +
+							ARCMSR_MSGCODE_RWBUFFER);
+
+		acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned long)dma_addr;
+		for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
+			for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
+				acb->devstate[i][j] = ARECA_RAID_GOOD;
+
+		/*
+		** here we need to tell iop 331 our ccb_tmp.HighPart
+		** if ccb_tmp.HighPart is not zero
+		*/
+		intmask_org = arcmsr_disable_outbound_ints(acb);
+		}
+		break;
+	}
 	return 0;
 }
 
@@ -310,16 +409,11 @@ static int arcmsr_probe(struct pci_dev *pdev,
 	host->unique_id = (bus << 8) | dev_fun;
 	host->irq = pdev->irq;
 	error = pci_request_regions(pdev, "arcmsr");
-	if (error)
+	if (error) {
 		goto out_host_put;
-
-	acb->pmu = ioremap(pci_resource_start(pdev, 0),
-			   pci_resource_len(pdev, 0));
-	if (!acb->pmu) {
-		printk(KERN_NOTICE "arcmsr%d: memory"
-			" mapping region fail \n", acb->host->host_no);
-		goto out_release_regions;
 	}
+	arcmsr_define_adapter_type(acb);
+
 	acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
 			   ACB_F_MESSAGE_RQBUFFER_CLEARED |
 			   ACB_F_MESSAGE_WQBUFFER_READED);
@@ -328,10 +422,10 @@ static int arcmsr_probe(struct pci_dev *pdev,
 
 	error = arcmsr_alloc_ccb_pool(acb);
 	if (error)
-		goto out_iounmap;
+		goto out_release_regions;
 
 	error = request_irq(pdev->irq, arcmsr_do_interrupt,
-			IRQF_DISABLED | IRQF_SHARED, "arcmsr", acb);
+				IRQF_SHARED, "arcmsr", acb);
 	if (error)
 		goto out_free_ccb_pool;
 
@@ -349,14 +443,15 @@ static int arcmsr_probe(struct pci_dev *pdev,
 		goto out_free_sysfs;
 
 	scsi_scan_host(host);
+	#ifdef CONFIG_SCSI_ARCMSR_AER
 	pci_enable_pcie_error_reporting(pdev);
+	#endif
 	return 0;
  out_free_sysfs:
  out_free_irq:
 	free_irq(pdev->irq, acb);
  out_free_ccb_pool:
 	arcmsr_free_ccb_pool(acb);
- out_iounmap:
 	iounmap(acb->pmu);
  out_release_regions:
 	pci_release_regions(pdev);
@@ -368,17 +463,84 @@ static int arcmsr_probe(struct pci_dev *pdev,
 	return error;
 }
 
-static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
+{
+	struct MessageUnit_A __iomem *reg = (struct MessageUnit_A *)acb->pmu;
+	uint32_t Index;
+	uint8_t Retries = 0x00;
+
+	do {
+		for (Index = 0; Index < 100; Index++) {
+			if (readl(&reg->outbound_intstatus) &
+					ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+				writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
+					&reg->outbound_intstatus);
+				return 0x00;
+			}
+			msleep(10);
+		}/*max 1 seconds*/
+
+	} while (Retries++ < 20);/*max 20 sec*/
+	return 0xff;
+}
+
+static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
+{
+	struct MessageUnit_B *reg = (struct MessageUnit_B *)acb->pmu;
+	uint32_t Index;
+	uint8_t Retries = 0x00;
+
+	do {
+		for (Index = 0; Index < 100; Index++) {
+			if (readl(reg->iop2drv_doorbell_reg)
+				& ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+				writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
+					, reg->iop2drv_doorbell_reg);
+				return 0x00;
+			}
+			msleep(10);
+		}/*max 1 seconds*/
+
+	} while (Retries++ < 20);/*max 20 sec*/
+	return 0xff;
+}
+
+static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
 {
-	struct MessageUnit __iomem *reg = acb->pmu;
+	struct MessageUnit_A __iomem *reg = (struct MessageUnit_A *)acb->pmu;
 
 	writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
-	if (arcmsr_wait_msgint_ready(acb))
+	if (arcmsr_hba_wait_msgint_ready(acb))
 		printk(KERN_NOTICE
 			"arcmsr%d: wait 'abort all outstanding command' timeout \n"
 			, acb->host->host_no);
 }
 
+static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
+{
+	struct MessageUnit_B *reg = (struct MessageUnit_B *)acb->pmu;
+
+	writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell_reg);
+	if (arcmsr_hbb_wait_msgint_ready(acb))
+		printk(KERN_NOTICE
+			"arcmsr%d: wait 'abort all outstanding command' timeout \n"