[SCSI] dpt_i2o: 64 bit support (62ac5aed) · Commits · 戴 / test

drivers/scsi/Kconfig

+1 −2

Original line number	Diff line number	Diff line
		@@ -504,10 +504,9 @@ config SCSI_AIC7XXX_OLD
		source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
		source "drivers/scsi/aic94xx/Kconfig"

		# All the I2O code and drivers do not seem to be 64bit safe.
		config SCSI_DPT_I2O
		tristate "Adaptec I2O RAID support "
		depends on !64BIT && SCSI && PCI && VIRT_TO_BUS
		depends on SCSI && PCI && VIRT_TO_BUS
		help
		This driver supports all of Adaptec's I2O based RAID controllers as
		well as the DPT SmartRaid V cards. This is an Adaptec maintained

drivers/scsi/dpt/dpti_ioctl.h

+8 −8

Original line number	Diff line number	Diff line
		@@ -89,7 +89,7 @@ typedef struct {
		int njobs; /* # of jobs sent to HA */
		int qdepth; /* Controller queue depth. */
		int wakebase; /* mpx wakeup base index. */
		uLONG SGsize; /* Scatter/Gather list size. */
		uINT SGsize; /* Scatter/Gather list size. */
		unsigned heads; /* heads for drives on cntlr. */
		unsigned sectors; /* sectors for drives on cntlr. */
		uCHAR do_drive32; /* Flag for Above 16 MB Ability */
		@@ -97,8 +97,8 @@ typedef struct {
		char idPAL[4]; /* 4 Bytes Of The ID Pal */
		uCHAR primary; /* 1 For Primary, 0 For Secondary */
		uCHAR eataVersion; /* EATA Version */
		uLONG cpLength; /* EATA Command Packet Length */
		uLONG spLength; /* EATA Status Packet Length */
		uINT cpLength; /* EATA Command Packet Length */
		uINT spLength; /* EATA Status Packet Length */
		uCHAR drqNum; /* DRQ Index (0,5,6,7) */
		uCHAR flag1; /* EATA Flags 1 (Byte 9) */
		uCHAR flag2; /* EATA Flags 2 (Byte 30) */
		@@ -107,23 +107,23 @@ typedef struct {
		typedef struct {
		uSHORT length; // Remaining length of this
		uSHORT drvrHBAnum; // Relative HBA # used by the driver
		uLONG baseAddr; // Base I/O address
		uINT baseAddr; // Base I/O address
		uSHORT blinkState; // Blink LED state (0=Not in blink LED)
		uCHAR pciBusNum; // PCI Bus # (Optional)
		uCHAR pciDeviceNum; // PCI Device # (Optional)
		uSHORT hbaFlags; // Miscellaneous HBA flags
		uSHORT Interrupt; // Interrupt set for this device.
		# if (defined(_DPT_ARC))
		uLONG baseLength;
		uINT baseLength;
		ADAPTER_OBJECT *AdapterObject;
		LARGE_INTEGER DmaLogicalAddress;
		PVOID DmaVirtualAddress;
		LARGE_INTEGER ReplyLogicalAddress;
		PVOID ReplyVirtualAddress;
		# else
		uLONG reserved1; // Reserved for future expansion
		uLONG reserved2; // Reserved for future expansion
		uLONG reserved3; // Reserved for future expansion
		uINT reserved1; // Reserved for future expansion
		uINT reserved2; // Reserved for future expansion
		uINT reserved3; // Reserved for future expansion
		# endif
		} drvrHBAinfo_S;

drivers/scsi/dpt/dptsig.h

+2 −6

Original line number	Diff line number	Diff line
		@@ -33,11 +33,7 @@
		/* to make sure we are talking the same size under all OS's */
		typedef unsigned char sigBYTE;
		typedef unsigned short sigWORD;
		#if (defined(_MULTI_DATAMODEL) && defined(sun) && !defined(_ILP32))
		typedef uint32_t sigLONG;
		#else
		typedef unsigned long sigLONG;
		#endif
		typedef unsigned int sigINT;

		/*
		* use sigWORDLittleEndian for:
		@@ -300,7 +296,7 @@ typedef struct dpt_sig {
		sigBYTE dsFiletype; /* type of file */
		sigBYTE dsFiletypeFlags; /* flags to specify load type, etc. */
		sigBYTE dsOEM; /* OEM file was created for */
		sigLONG dsOS; /* which Operating systems */
		sigINT dsOS; /* which Operating systems */
		sigWORD dsCapabilities; /* RAID levels, etc. */
		sigWORD dsDeviceSupp; /* Types of SCSI devices supported */
		sigWORD dsAdapterSupp; /* DPT adapter families supported */

drivers/scsi/dpt/sys_info.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -145,8 +145,8 @@
		uCHAR smartROMRevision;
		uSHORT flags; /* See bit definitions above */
		uSHORT conventionalMemSize; /* in KB */
		uLONG extendedMemSize; /* in KB */
		uLONG osType; /* Same as DPTSIG's definition */
		uINT extendedMemSize; /* in KB */
		uINT osType; /* Same as DPTSIG's definition */
		uCHAR osMajorVersion;
		uCHAR osMinorVersion; /* The OS version */
		uCHAR osRevision;

drivers/scsi/dpt_i2o.c

+245 −35

Original line number	Diff line number	Diff line
		@@ -111,10 +111,17 @@ static int sys_tbl_len;
		static adpt_hba* hba_chain = NULL;
		static int hba_count = 0;

		#ifdef CONFIG_COMPAT
		static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long);
		#endif

		static const struct file_operations adpt_fops = {
		.ioctl = adpt_ioctl,
		.open = adpt_open,
		.release = adpt_close
		.release = adpt_close,
		#ifdef CONFIG_COMPAT
		.compat_ioctl = compat_adpt_ioctl,
		#endif
		};

		/* Structures and definitions for synchronous message posting.
		@@ -138,6 +145,11 @@ static DEFINE_SPINLOCK(adpt_post_wait_lock);
		*============================================================================
		*/

		static inline int dpt_dma64(adpt_hba *pHba)
		{
		return (sizeof(dma_addr_t) > 4 && (pHba)->dma64);
		}

		static inline u32 dma_high(dma_addr_t addr)
		{
		return upper_32_bits(addr);
		@@ -277,7 +289,7 @@ static int adpt_release(struct Scsi_Host *host)

		static void adpt_inquiry(adpt_hba* pHba)
		{
		u32 msg[14];
		u32 msg[17];
		u32 *mptr;
		u32 *lenptr;
		int direction;
		@@ -301,7 +313,10 @@ static void adpt_inquiry(adpt_hba* pHba)
		direction = 0x00000000;
		scsidir =0x40000000; // DATA IN (iop<--dev)

		reqlen = 14; // SINGLE SGE
		if (dpt_dma64(pHba))
		reqlen = 17; // SINGLE SGE, 64 bit
		else
		reqlen = 14; // SINGLE SGE, 32 bit
		/* Stick the headers on */
		msg[0] = reqlen<<16 \| SGL_OFFSET_12;
		msg[1] = (0xff<<24\|HOST_TID<<12\|ADAPTER_TID);
		@@ -334,8 +349,16 @@ static void adpt_inquiry(adpt_hba* pHba)

		/* Now fill in the SGList and command */
		*lenptr = len;
		if (dpt_dma64(pHba)) {
		mptr++ = (0x7C<<24)+(2<<16)+0x02; / Enable 64 bit */
		*mptr++ = 1 << PAGE_SHIFT;
		*mptr++ = 0xD0000000\|direction\|len;
		*mptr++ = dma_low(addr);
		*mptr++ = dma_high(addr);
		} else {
		*mptr++ = 0xD0000000\|direction\|len;
		*mptr++ = addr;
		}

		// Send it on it's way
		rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120);
		@@ -628,6 +651,92 @@ stop_output:
		return len;
		}

		/*
		* Turn a struct scsi_cmnd * into a unique 32 bit 'context'.
		*/
		static u32 adpt_cmd_to_context(struct scsi_cmnd *cmd)
		{
		return (u32)cmd->serial_number;
		}

		/*
		* Go from a u32 'context' to a struct scsi_cmnd * .
		* This could probably be made more efficient.
		*/
		static struct scsi_cmnd *
		adpt_cmd_from_context(adpt_hba * pHba, u32 context)
		{
		struct scsi_cmnd * cmd;
		struct scsi_device * d;

		if (context == 0)
		return NULL;

		spin_unlock(pHba->host->host_lock);
		shost_for_each_device(d, pHba->host) {
		unsigned long flags;
		spin_lock_irqsave(&d->list_lock, flags);
		list_for_each_entry(cmd, &d->cmd_list, list) {
		if (((u32)cmd->serial_number == context)) {
		spin_unlock_irqrestore(&d->list_lock, flags);
		scsi_device_put(d);
		spin_lock(pHba->host->host_lock);
		return cmd;
		}
		}
		spin_unlock_irqrestore(&d->list_lock, flags);
		}
		spin_lock(pHba->host->host_lock);

		return NULL;
		}

		/*
		* Turn a pointer to ioctl reply data into an u32 'context'
		*/
		static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply)
		{
		#if BITS_PER_LONG == 32
		return (u32)(unsigned long)reply;
		#else
		ulong flags = 0;
		u32 nr, i;

		spin_lock_irqsave(pHba->host->host_lock, flags);
		nr = ARRAY_SIZE(pHba->ioctl_reply_context);
		for (i = 0; i < nr; i++) {
		if (pHba->ioctl_reply_context[i] == NULL) {
		pHba->ioctl_reply_context[i] = reply;
		break;
		}
		}
		spin_unlock_irqrestore(pHba->host->host_lock, flags);
		if (i >= nr) {
		kfree (reply);
		printk(KERN_WARNING"%s: Too many outstanding "
		"ioctl commands\n", pHba->name);
		return (u32)-1;
		}

		return i;
		#endif
		}

		/*
		* Go from an u32 'context' to a pointer to ioctl reply data.
		*/
		static void adpt_ioctl_from_context(adpt_hba pHba, u32 context)
		{
		#if BITS_PER_LONG == 32
		return (void *)(unsigned long)context;
		#else
		void *p = pHba->ioctl_reply_context[context];
		pHba->ioctl_reply_context[context] = NULL;

		return p;
		#endif
		}

		/*===========================================================================
		* Error Handling routines
		*===========================================================================
		@@ -655,7 +764,7 @@ static int adpt_abort(struct scsi_cmnd * cmd)
		msg[1] = I2O_CMD_SCSI_ABORT<<24\|HOST_TID<<12\|dptdevice->tid;
		msg[2] = 0;
		msg[3]= 0;
		msg[4] = (u32)cmd;
		msg[4] = adpt_cmd_to_context(cmd);
		if (pHba->host)
		spin_lock_irq(pHba->host->host_lock);
		rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
		@@ -867,6 +976,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
		u32 hba_map1_area_size = 0;
		void __iomem *base_addr_virt = NULL;
		void __iomem *msg_addr_virt = NULL;
		int dma64 = 0;

		int raptorFlag = FALSE;

		@@ -880,7 +990,16 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
		}

		pci_set_master(pDev);
		if (pci_set_dma_mask(pDev, DMA_32BIT_MASK))

		/*
		* See if we should enable dma64 mode.
		*/
		if (sizeof(dma_addr_t) > 4 &&
		pci_set_dma_mask(pDev, DMA_64BIT_MASK) == 0) {
		if (dma_get_required_mask(&pDev->dev) > DMA_32BIT_MASK)
		dma64 = 1;
		}
		if (!dma64 && pci_set_dma_mask(pDev, DMA_32BIT_MASK) != 0)
		return -EINVAL;

		/* adapter only supports message blocks below 4GB */
		@@ -906,6 +1025,25 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
		raptorFlag = TRUE;
		}

		#if BITS_PER_LONG == 64
		/*
		* The original Adaptec 64 bit driver has this comment here:
		* "x86_64 machines need more optimal mappings"
		*
		* I assume some HBAs report ridiculously large mappings
		* and we need to limit them on platforms with IOMMUs.
		*/
		if (raptorFlag == TRUE) {
		if (hba_map0_area_size > 128)
		hba_map0_area_size = 128;
		if (hba_map1_area_size > 524288)
		hba_map1_area_size = 524288;
		} else {
		if (hba_map0_area_size > 524288)
		hba_map0_area_size = 524288;
		}
		#endif

		base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
		if (!base_addr_virt) {
		pci_release_regions(pDev);
		@@ -968,16 +1106,22 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
		pHba->state = DPTI_STATE_RESET;
		pHba->pDev = pDev;
		pHba->devices = NULL;
		pHba->dma64 = dma64;

		// Initializing the spinlocks
		spin_lock_init(&pHba->state_lock);
		spin_lock_init(&adpt_post_wait_lock);

		if(raptorFlag == 0){
		printk(KERN_INFO"Adaptec I2O RAID controller %d at %p size=%x irq=%d\n",
		hba_count-1, base_addr_virt, hba_map0_area_size, pDev->irq);
		printk(KERN_INFO "Adaptec I2O RAID controller"
		" %d at %p size=%x irq=%d%s\n",
		hba_count-1, base_addr_virt,
		hba_map0_area_size, pDev->irq,
		dma64 ? " (64-bit DMA)" : "");
		} else {
		printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d\n",hba_count-1, pDev->irq);
		printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n",
		hba_count-1, pDev->irq,
		dma64 ? " (64-bit DMA)" : "");
		printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
		printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
		}
		@@ -1030,6 +1174,8 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
		if(pHba->msg_addr_virt != pHba->base_addr_virt){
		iounmap(pHba->msg_addr_virt);
		}
		if(pHba->FwDebugBuffer_P)
		iounmap(pHba->FwDebugBuffer_P);
		if(pHba->hrt) {
		dma_free_coherent(&pHba->pDev->dev,
		pHba->hrt->num_entries * pHba->hrt->entry_len << 2,
		@@ -1657,10 +1803,13 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
		}
		sg_offset = (msg[0]>>4)&0xf;
		msg[2] = 0x40000000; // IOCTL context
		msg[3] = (u32)reply;
		msg[3] = adpt_ioctl_to_context(pHba, reply);
		if (msg[3] == (u32)-1)
		return -EBUSY;

		memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize);
		if(sg_offset) {
		// TODO 64bit fix
		// TODO add 64 bit API
		struct sg_simple_element sg = (struct sg_simple_element) (msg+sg_offset);
		sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
		if (sg_count > pHba->sg_tablesize){
		@@ -1689,15 +1838,15 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
		sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
		/* Copy in the user's SG buffer if necessary */
		if(sg[i].flag_count & 0x04000000 /I2O_SGL_FLAGS_DIR/) {
		// TODO 64bit fix
		if (copy_from_user(p,(void __user *)sg[i].addr_bus, sg_size)) {
		// sg_simple_element API is 32 bit
		if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) {
		printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
		rcode = -EFAULT;
		goto cleanup;
		}
		}
		//TODO 64bit fix
		sg[i].addr_bus = (u32)virt_to_bus(p);
		/* sg_simple_element API is 32 bit, but addr < 4GB */
		sg[i].addr_bus = addr;
		}
		}

		@@ -1725,7 +1874,7 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
		if(sg_offset) {
		/* Copy back the Scatter Gather buffers back to user space */
		u32 j;
		// TODO 64bit fix
		// TODO add 64 bit API
		struct sg_simple_element* sg;
		int sg_size;

		@@ -1745,14 +1894,14 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
		}
		sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);

		// TODO 64bit fix
		// TODO add 64 bit API
		sg = (struct sg_simple_element*)(msg + sg_offset);
		for (j = 0; j < sg_count; j++) {
		/* Copy out the SG list to user's buffer if necessary */
		if(! (sg[j].flag_count & 0x4000000 /I2O_SGL_FLAGS_DIR/)) {
		sg_size = sg[j].flag_count & 0xffffff;
		// TODO 64bit fix
		if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) {
		// sg_simple_element API is 32 bit
		if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) {
		printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
		rcode = -EFAULT;
		goto cleanup;
		@@ -1972,6 +2121,38 @@ static int adpt_ioctl(struct inode inode, struct file file, uint cmd,
		return error;
		}

		#ifdef CONFIG_COMPAT
		static long compat_adpt_ioctl(struct file *file,
		unsigned int cmd, unsigned long arg)
		{
		struct inode *inode;
		long ret;

		inode = file->f_dentry->d_inode;

		lock_kernel();

		switch(cmd) {
		case DPT_SIGNATURE:
		case I2OUSRCMD:
		case DPT_CTRLINFO:
		case DPT_SYSINFO:
		case DPT_BLINKLED:
		case I2ORESETCMD:
		case I2ORESCANCMD:
		case (DPT_TARGET_BUSY & 0xFFFF):
		case DPT_TARGET_BUSY:
		ret = adpt_ioctl(inode, file, cmd, arg);
		break;
		default:
		ret = -ENOIOCTLCMD;
		}

		unlock_kernel();

		return ret;
		}
		#endif

		static irqreturn_t adpt_isr(int irq, void *dev_id)
		{
		@@ -2032,7 +2213,7 @@ static irqreturn_t adpt_isr(int irq, void *dev_id)
		}
		context = readl(reply+8);
		if(context & 0x40000000){ // IOCTL
		void p = (void )readl(reply+12);
		void *p = adpt_ioctl_from_context(pHba, readl(reply+12));
		if( p != NULL) {
		memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
		}
		@@ -2046,14 +2227,15 @@ static irqreturn_t adpt_isr(int irq, void *dev_id)
		status = I2O_POST_WAIT_OK;
		}
		if(!(context & 0x40000000)) {
		cmd = (struct scsi_cmnd*) readl(reply+12);
		cmd = adpt_cmd_from_context(pHba,
		readl(reply+12));
		if(cmd != NULL) {
		printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
		}
		}
		adpt_i2o_post_wait_complete(context, status);
		} else { // SCSI message
		cmd = (struct scsi_cmnd*) readl(reply+12);
		cmd = adpt_cmd_from_context (pHba, readl(reply+12));
		if(cmd != NULL){
		scsi_dma_unmap(cmd);
		if(cmd->serial_number != 0) { // If not timedout
		@@ -2076,6 +2258,7 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d
		int i;
		u32 msg[MAX_MESSAGE_SIZE];
		u32* mptr;
		u32* lptr;
		u32 *lenptr;
		int direction;
		int scsidir;
		@@ -2083,6 +2266,7 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d
		u32 len;
		u32 reqlen;
		s32 rcode;
		dma_addr_t addr;

		memset(msg, 0 , sizeof(msg));
		len = scsi_bufflen(cmd);
		@@ -2122,7 +2306,7 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d
		// I2O_CMD_SCSI_EXEC
		msg[1] = ((0xff<<24)\|(HOST_TID<<12)\|d->tid);
		msg[2] = 0;
		msg[3] = (u32)cmd; /* We want the SCSI control block back */
		msg[3] = adpt_cmd_to_context(cmd); /* Want SCSI control block back */
		// Our cards use the transaction context as the tag for queueing
		// Adaptec/DPT Private stuff
		msg[4] = I2O_CMD_SCSI_EXEC\|(DPT_ORGANIZATION_ID<<16);
		@@ -2140,7 +2324,13 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d
		memcpy(mptr, cmd->cmnd, cmd->cmd_len);
		mptr+=4;
		lenptr=mptr++; /* Remember me - fill in when we know */
		if (dpt_dma64(pHba)) {
		reqlen = 16; // SINGLE SGE
		mptr++ = (0x7C<<24)+(2<<16)+0x02; / Enable 64 bit */
		*mptr++ = 1 << PAGE_SHIFT;
		} else {
		reqlen = 14; // SINGLE SGE
		}
		/* Now fill in the SGList and command */

		nseg = scsi_dma_map(cmd);
		@@ -2150,12 +2340,16 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d

		len = 0;
		scsi_for_each_sg(cmd, sg, nseg, i) {
		lptr = mptr;
		*mptr++ = direction\|0x10000000\|sg_dma_len(sg);
		len+=sg_dma_len(sg);
		*mptr++ = sg_dma_address(sg);
		addr = sg_dma_address(sg);
		*mptr++ = dma_low(addr);
		if (dpt_dma64(pHba))
		*mptr++ = dma_high(addr);
		/* Make this an end of list */
		if (i == nseg - 1)
		mptr[-2] = direction\|0xD0000000\|sg_dma_len(sg);
		*lptr = direction\|0xD0000000\|sg_dma_len(sg);
		}
		reqlen = mptr - msg;
		*lenptr = len;
		@@ -2824,7 +3018,17 @@ static s32 adpt_i2o_status_get(adpt_hba* pHba)
		}

		// Calculate the Scatter Gather list size
		pHba->sg_tablesize = (pHba->status_block->inbound_frame_size * 4 -40)/ sizeof(struct sg_simple_element);
		if (dpt_dma64(pHba)) {
		pHba->sg_tablesize
		= ((pHba->status_block->inbound_frame_size * 4
		- 14 * sizeof(u32))
		/ (sizeof(struct sg_simple_element) + sizeof(u32)));
		} else {
		pHba->sg_tablesize
		= ((pHba->status_block->inbound_frame_size * 4
		- 12 * sizeof(u32))
		/ sizeof(struct sg_simple_element));
		}
		if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
		pHba->sg_tablesize = SG_LIST_ELEMENTS;
		}
		@@ -2916,14 +3120,20 @@ static int adpt_i2o_lct_get(adpt_hba* pHba)
		// I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
		if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
		pHba->FwDebugBufferSize = buf[1];
		pHba->FwDebugBuffer_P = pHba->base_addr_virt + buf[0];
		pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P + FW_DEBUG_FLAGS_OFFSET;
		pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + FW_DEBUG_BLED_OFFSET;
		pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0],
		pHba->FwDebugBufferSize);
		if (pHba->FwDebugBuffer_P) {
		pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P +
		FW_DEBUG_FLAGS_OFFSET;
		pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P +
		FW_DEBUG_BLED_OFFSET;
		pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1;
		pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + FW_DEBUG_STR_LENGTH_OFFSET;
		pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P +
		FW_DEBUG_STR_LENGTH_OFFSET;
		pHba->FwDebugBuffer_P += buf[2];
		pHba->FwDebugFlags = 0;
		}
		}

		return 0;
		}

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