Initial import

1 files changed, 895 insertions, 0 deletions

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
new file mode 100644
index 000000000..54195a117
--- /dev/null
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -0,0 +1,895 @@
+/*
+ *	Adaptec AAC series RAID controller driver
+ *	(c) Copyright 2001 Red Hat Inc.
+ *
+ * based on the old aacraid driver that is..
+ * Adaptec aacraid device driver for Linux.
+ *
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Module Name:
+ *  commctrl.c
+ *
+ * Abstract: Contains all routines for control of the AFA comm layer
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/completion.h>
+#include <linux/dma-mapping.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h> /* ssleep prototype */
+#include <linux/kthread.h>
+#include <linux/semaphore.h>
+#include <asm/uaccess.h>
+#include <scsi/scsi_host.h>
+
+#include "aacraid.h"
+
+/**
+ *	ioctl_send_fib	-	send a FIB from userspace
+ *	@dev:	adapter is being processed
+ *	@arg:	arguments to the ioctl call
+ *
+ *	This routine sends a fib to the adapter on behalf of a user level
+ *	program.
+ */
+# define AAC_DEBUG_PREAMBLE	KERN_INFO
+# define AAC_DEBUG_POSTAMBLE
+
+static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
+{
+	struct hw_fib * kfib;
+	struct fib *fibptr;
+	struct hw_fib * hw_fib = (struct hw_fib *)0;
+	dma_addr_t hw_fib_pa = (dma_addr_t)0LL;
+	unsigned size;
+	int retval;
+
+	if (dev->in_reset) {
+		return -EBUSY;
+	}
+	fibptr = aac_fib_alloc(dev);
+	if(fibptr == NULL) {
+		return -ENOMEM;
+	}
+
+	kfib = fibptr->hw_fib_va;
+	/*
+	 *	First copy in the header so that we can check the size field.
+	 */
+	if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) {
+		aac_fib_free(fibptr);
+		return -EFAULT;
+	}
+	/*
+	 *	Since we copy based on the fib header size, make sure that we
+	 *	will not overrun the buffer when we copy the memory. Return
+	 *	an error if we would.
+	 */
+	size = le16_to_cpu(kfib->header.Size) + sizeof(struct aac_fibhdr);
+	if (size < le16_to_cpu(kfib->header.SenderSize))
+		size = le16_to_cpu(kfib->header.SenderSize);
+	if (size > dev->max_fib_size) {
+		dma_addr_t daddr;
+
+		if (size > 2048) {
+			retval = -EINVAL;
+			goto cleanup;
+		}
+
+		kfib = pci_alloc_consistent(dev->pdev, size, &daddr);
+		if (!kfib) {
+			retval = -ENOMEM;
+			goto cleanup;
+		}
+
+		/* Highjack the hw_fib */
+		hw_fib = fibptr->hw_fib_va;
+		hw_fib_pa = fibptr->hw_fib_pa;
+		fibptr->hw_fib_va = kfib;
+		fibptr->hw_fib_pa = daddr;
+		memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size);
+		memcpy(kfib, hw_fib, dev->max_fib_size);
+	}
+
+	if (copy_from_user(kfib, arg, size)) {
+		retval = -EFAULT;
+		goto cleanup;
+	}
+
+	if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) {
+		aac_adapter_interrupt(dev);
+		/*
+		 * Since we didn't really send a fib, zero out the state to allow
+		 * cleanup code not to assert.
+		 */
+		kfib->header.XferState = 0;
+	} else {
+		retval = aac_fib_send(le16_to_cpu(kfib->header.Command), fibptr,
+				le16_to_cpu(kfib->header.Size) , FsaNormal,
+				1, 1, NULL, NULL);
+		if (retval) {
+			goto cleanup;
+		}
+		if (aac_fib_complete(fibptr) != 0) {
+			retval = -EINVAL;
+			goto cleanup;
+		}
+	}
+	/*
+	 *	Make sure that the size returned by the adapter (which includes
+	 *	the header) is less than or equal to the size of a fib, so we
+	 *	don't corrupt application data. Then copy that size to the user
+	 *	buffer. (Don't try to add the header information again, since it
+	 *	was already included by the adapter.)
+	 */
+
+	retval = 0;
+	if (copy_to_user(arg, (void *)kfib, size))
+		retval = -EFAULT;
+cleanup:
+	if (hw_fib) {
+		pci_free_consistent(dev->pdev, size, kfib, fibptr->hw_fib_pa);
+		fibptr->hw_fib_pa = hw_fib_pa;
+		fibptr->hw_fib_va = hw_fib;
+	}
+	if (retval != -ERESTARTSYS)
+		aac_fib_free(fibptr);
+	return retval;
+}
+
+/**
+ *	open_getadapter_fib	-	Get the next fib
+ *
+ *	This routine will get the next Fib, if available, from the AdapterFibContext
+ *	passed in from the user.
+ */
+
+static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
+{
+	struct aac_fib_context * fibctx;
+	int status;
+
+	fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL);
+	if (fibctx == NULL) {
+		status = -ENOMEM;
+	} else {
+		unsigned long flags;
+		struct list_head * entry;
+		struct aac_fib_context * context;
+
+		fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT;
+		fibctx->size = sizeof(struct aac_fib_context);
+		/*
+		 *	Yes yes, I know this could be an index, but we have a
+		 * better guarantee of uniqueness for the locked loop below.
+		 * Without the aid of a persistent history, this also helps
+		 * reduce the chance that the opaque context would be reused.
+		 */
+		fibctx->unique = (u32)((ulong)fibctx & 0xFFFFFFFF);
+		/*
+		 *	Initialize the mutex used to wait for the next AIF.
+		 */
+		sema_init(&fibctx->wait_sem, 0);
+		fibctx->wait = 0;
+		/*
+		 *	Initialize the fibs and set the count of fibs on
+		 *	the list to 0.
+		 */
+		fibctx->count = 0;
+		INIT_LIST_HEAD(&fibctx->fib_list);
+		fibctx->jiffies = jiffies/HZ;
+		/*
+		 *	Now add this context onto the adapter's
+		 *	AdapterFibContext list.
+		 */
+		spin_lock_irqsave(&dev->fib_lock, flags);
+		/* Ensure that we have a unique identifier */
+		entry = dev->fib_list.next;
+		while (entry != &dev->fib_list) {
+			context = list_entry(entry, struct aac_fib_context, next);
+			if (context->unique == fibctx->unique) {
+				/* Not unique (32 bits) */
+				fibctx->unique++;
+				entry = dev->fib_list.next;
+			} else {
+				entry = entry->next;
+			}
+		}
+		list_add_tail(&fibctx->next, &dev->fib_list);
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
+		if (copy_to_user(arg, &fibctx->unique,
+						sizeof(fibctx->unique))) {
+			status = -EFAULT;
+		} else {
+			status = 0;
+		}
+	}
+	return status;
+}
+
+/**
+ *	next_getadapter_fib	-	get the next fib
+ *	@dev: adapter to use
+ *	@arg: ioctl argument
+ *
+ *	This routine will get the next Fib, if available, from the AdapterFibContext
+ *	passed in from the user.
+ */
+
+static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
+{
+	struct fib_ioctl f;
+	struct fib *fib;
+	struct aac_fib_context *fibctx;
+	int status;
+	struct list_head * entry;
+	unsigned long flags;
+
+	if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl)))
+		return -EFAULT;
+	/*
+	 *	Verify that the HANDLE passed in was a valid AdapterFibContext
+	 *
+	 *	Search the list of AdapterFibContext addresses on the adapter
+	 *	to be sure this is a valid address
+	 */
+	spin_lock_irqsave(&dev->fib_lock, flags);
+	entry = dev->fib_list.next;
+	fibctx = NULL;
+
+	while (entry != &dev->fib_list) {
+		fibctx = list_entry(entry, struct aac_fib_context, next);
+		/*
+		 *	Extract the AdapterFibContext from the Input parameters.
+		 */
+		if (fibctx->unique == f.fibctx) { /* We found a winner */
+			break;
+		}
+		entry = entry->next;
+		fibctx = NULL;
+	}
+	if (!fibctx) {
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
+		dprintk ((KERN_INFO "Fib Context not found\n"));
+		return -EINVAL;
+	}
+
+	if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
+		 (fibctx->size != sizeof(struct aac_fib_context))) {
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
+		dprintk ((KERN_INFO "Fib Context corrupt?\n"));
+		return -EINVAL;
+	}
+	status = 0;
+	/*
+	 *	If there are no fibs to send back, then either wait or return
+	 *	-EAGAIN
+	 */
+return_fib:
+	if (!list_empty(&fibctx->fib_list)) {
+		/*
+		 *	Pull the next fib from the fibs
+		 */
+		entry = fibctx->fib_list.next;
+		list_del(entry);
+
+		fib = list_entry(entry, struct fib, fiblink);
+		fibctx->count--;
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
+		if (copy_to_user(f.fib, fib->hw_fib_va, sizeof(struct hw_fib))) {
+			kfree(fib->hw_fib_va);
+			kfree(fib);
+			return -EFAULT;
+		}
+		/*
+		 *	Free the space occupied by this copy of the fib.
+		 */
+		kfree(fib->hw_fib_va);
+		kfree(fib);
+		status = 0;
+	} else {
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
+		/* If someone killed the AIF aacraid thread, restart it */
+		status = !dev->aif_thread;
+		if (status && !dev->in_reset && dev->queues && dev->fsa_dev) {
+			/* Be paranoid, be very paranoid! */
+			kthread_stop(dev->thread);
+			ssleep(1);
+			dev->aif_thread = 0;
+			dev->thread = kthread_run(aac_command_thread, dev,
+						  "%s", dev->name);
+			ssleep(1);
+		}
+		if (f.wait) {
+			if(down_interruptible(&fibctx->wait_sem) < 0) {
+				status = -ERESTARTSYS;
+			} else {
+				/* Lock again and retry */
+				spin_lock_irqsave(&dev->fib_lock, flags);
+				goto return_fib;
+			}
+		} else {
+			status = -EAGAIN;
+		}
+	}
+	fibctx->jiffies = jiffies/HZ;
+	return status;
+}
+
+int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
+{
+	struct fib *fib;
+
+	/*
+	 *	First free any FIBs that have not been consumed.
+	 */
+	while (!list_empty(&fibctx->fib_list)) {
+		struct list_head * entry;
+		/*
+		 *	Pull the next fib from the fibs
+		 */
+		entry = fibctx->fib_list.next;
+		list_del(entry);
+		fib = list_entry(entry, struct fib, fiblink);
+		fibctx->count--;
+		/*
+		 *	Free the space occupied by this copy of the fib.
+		 */
+		kfree(fib->hw_fib_va);
+		kfree(fib);
+	}
+	/*
+	 *	Remove the Context from the AdapterFibContext List
+	 */
+	list_del(&fibctx->next);
+	/*
+	 *	Invalidate context
+	 */
+	fibctx->type = 0;
+	/*
+	 *	Free the space occupied by the Context
+	 */
+	kfree(fibctx);
+	return 0;
+}
+
+/**
+ *	close_getadapter_fib	-	close down user fib context
+ *	@dev: adapter
+ *	@arg: ioctl arguments
+ *
+ *	This routine will close down the fibctx passed in from the user.
+ */
+
+static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
+{
+	struct aac_fib_context *fibctx;
+	int status;
+	unsigned long flags;
+	struct list_head * entry;
+
+	/*
+	 *	Verify that the HANDLE passed in was a valid AdapterFibContext
+	 *
+	 *	Search the list of AdapterFibContext addresses on the adapter
+	 *	to be sure this is a valid address
+	 */
+
+	entry = dev->fib_list.next;
+	fibctx = NULL;
+
+	while(entry != &dev->fib_list) {
+		fibctx = list_entry(entry, struct aac_fib_context, next);
+		/*
+		 *	Extract the fibctx from the input parameters
+		 */
+		if (fibctx->unique == (u32)(uintptr_t)arg) /* We found a winner */
+			break;
+		entry = entry->next;
+		fibctx = NULL;
+	}
+
+	if (!fibctx)
+		return 0; /* Already gone */
+
+	if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
+		 (fibctx->size != sizeof(struct aac_fib_context)))
+		return -EINVAL;
+	spin_lock_irqsave(&dev->fib_lock, flags);
+	status = aac_close_fib_context(dev, fibctx);
+	spin_unlock_irqrestore(&dev->fib_lock, flags);
+	return status;
+}
+
+/**
+ *	check_revision	-	close down user fib context
+ *	@dev: adapter
+ *	@arg: ioctl arguments
+ *
+ *	This routine returns the driver version.
+ *	Under Linux, there have been no version incompatibilities, so this is
+ *	simple!
+ */
+
+static int check_revision(struct aac_dev *dev, void __user *arg)
+{
+	struct revision response;
+	char *driver_version = aac_driver_version;
+	u32 version;
+
+	response.compat = 1;
+	version = (simple_strtol(driver_version,
+				&driver_version, 10) << 24) | 0x00000400;
+	version += simple_strtol(driver_version + 1, &driver_version, 10) << 16;
+	version += simple_strtol(driver_version + 1, NULL, 10);
+	response.version = cpu_to_le32(version);
+#	ifdef AAC_DRIVER_BUILD
+		response.build = cpu_to_le32(AAC_DRIVER_BUILD);
+#	else
+		response.build = cpu_to_le32(9999);
+#	endif
+
+	if (copy_to_user(arg, &response, sizeof(response)))
+		return -EFAULT;
+	return 0;
+}
+
+
+/**
+ *
+ * aac_send_raw_scb
+ *
+ */
+
+static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
+{
+	struct fib* srbfib;
+	int status;
+	struct aac_srb *srbcmd = NULL;
+	struct user_aac_srb *user_srbcmd = NULL;
+	struct user_aac_srb __user *user_srb = arg;
+	struct aac_srb_reply __user *user_reply;
+	struct aac_srb_reply* reply;
+	u32 fibsize = 0;
+	u32 flags = 0;
+	s32 rcode = 0;
+	u32 data_dir;
+	void __user *sg_user[32];
+	void *sg_list[32];
+	u32 sg_indx = 0;
+	u32 byte_count = 0;
+	u32 actual_fibsize64, actual_fibsize = 0;
+	int i;
+
+
+	if (dev->in_reset) {
+		dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n"));
+		return -EBUSY;
+	}
+	if (!capable(CAP_SYS_ADMIN)){
+		dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n"));
+		return -EPERM;
+	}
+	/*
+	 *	Allocate and initialize a Fib then setup a SRB command
+	 */
+	if (!(srbfib = aac_fib_alloc(dev))) {
+		return -ENOMEM;
+	}
+	aac_fib_init(srbfib);
+	/* raw_srb FIB is not FastResponseCapable */
+	srbfib->hw_fib_va->header.XferState &= ~cpu_to_le32(FastResponseCapable);
+
+	srbcmd = (struct aac_srb*) fib_data(srbfib);
+
+	memset(sg_list, 0, sizeof(sg_list)); /* cleanup may take issue */
+	if(copy_from_user(&fibsize, &user_srb->count,sizeof(u32))){
+		dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n"));
+		rcode = -EFAULT;
+		goto cleanup;
+	}
+
+	if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) ||
+	    (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) {
+		rcode = -EINVAL;
+		goto cleanup;
+	}
+
+	user_srbcmd = kmalloc(fibsize, GFP_KERNEL);
+	if (!user_srbcmd) {
+		dprintk((KERN_DEBUG"aacraid: Could not make a copy of the srb\n"));
+		rcode = -ENOMEM;
+		goto cleanup;
+	}
+	if(copy_from_user(user_srbcmd, user_srb,fibsize)){
+		dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n"));
+		rcode = -EFAULT;
+		goto cleanup;
+	}
+
+	user_reply = arg+fibsize;
+
+	flags = user_srbcmd->flags; /* from user in cpu order */
+	// Fix up srb for endian and force some values
+
+	srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);	// Force this
+	srbcmd->channel	 = cpu_to_le32(user_srbcmd->channel);
+	srbcmd->id	 = cpu_to_le32(user_srbcmd->id);
+	srbcmd->lun	 = cpu_to_le32(user_srbcmd->lun);
+	srbcmd->timeout	 = cpu_to_le32(user_srbcmd->timeout);
+	srbcmd->flags	 = cpu_to_le32(flags);
+	srbcmd->retry_limit = 0; // Obsolete parameter
+	srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size);
+	memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb));
+
+	switch (flags & (SRB_DataIn | SRB_DataOut)) {
+	case SRB_DataOut:
+		data_dir = DMA_TO_DEVICE;
+		break;
+	case (SRB_DataIn | SRB_DataOut):
+		data_dir = DMA_BIDIRECTIONAL;
+		break;
+	case SRB_DataIn:
+		data_dir = DMA_FROM_DEVICE;
+		break;
+	default:
+		data_dir = DMA_NONE;
+	}
+	if (user_srbcmd->sg.count > ARRAY_SIZE(sg_list)) {
+		dprintk((KERN_DEBUG"aacraid: too many sg entries %d\n",
+		  le32_to_cpu(srbcmd->sg.count)));
+		rcode = -EINVAL;
+		goto cleanup;
+	}
+	actual_fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) +
+		((user_srbcmd->sg.count & 0xff) * sizeof(struct sgentry));
+	actual_fibsize64 = actual_fibsize + (user_srbcmd->sg.count & 0xff) *
+	  (sizeof(struct sgentry64) - sizeof(struct sgentry));
+	/* User made a mistake - should not continue */
+	if ((actual_fibsize != fibsize) && (actual_fibsize64 != fibsize)) {
+		dprintk((KERN_DEBUG"aacraid: Bad Size specified in "
+		  "Raw SRB command calculated fibsize=%lu;%lu "
+		  "user_srbcmd->sg.count=%d aac_srb=%lu sgentry=%lu;%lu "
+		  "issued fibsize=%d\n",
+		  actual_fibsize, actual_fibsize64, user_srbcmd->sg.count,
+		  sizeof(struct aac_srb), sizeof(struct sgentry),
+		  sizeof(struct sgentry64), fibsize));
+		rcode = -EINVAL;
+		goto cleanup;
+	}
+	if ((data_dir == DMA_NONE) && user_srbcmd->sg.count) {
+		dprintk((KERN_DEBUG"aacraid: SG with no direction specified in Raw SRB command\n"));
+		rcode = -EINVAL;
+		goto cleanup;
+	}
+	byte_count = 0;
+	if (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) {
+		struct user_sgmap64* upsg = (struct user_sgmap64*)&user_srbcmd->sg;
+		struct sgmap64* psg = (struct sgmap64*)&srbcmd->sg;
+
+		/*
+		 * This should also catch if user used the 32 bit sgmap
+		 */
+		if (actual_fibsize64 == fibsize) {
+			actual_fibsize = actual_fibsize64;
+			for (i = 0; i < upsg->count; i++) {
+				u64 addr;
+				void* p;
+				if (upsg->sg[i].count >
+				    ((dev->adapter_info.options &
+				     AAC_OPT_NEW_COMM) ?
+				      (dev->scsi_host_ptr->max_sectors << 9) :
+				      65536)) {
+					rcode = -EINVAL;
+					goto cleanup;
+				}
+				/* Does this really need to be GFP_DMA? */
+				p = kmalloc(upsg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+				if(!p) {
+					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+					  upsg->sg[i].count,i,upsg->count));
+					rcode = -ENOMEM;
+					goto cleanup;
+				}
+				addr = (u64)upsg->sg[i].addr[0];
+				addr += ((u64)upsg->sg[i].addr[1]) << 32;
+				sg_user[i] = (void __user *)(uintptr_t)addr;
+				sg_list[i] = p; // save so we can clean up later
+				sg_indx = i;
+
+				if (flags & SRB_DataOut) {
+					if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){
+						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
+						rcode = -EFAULT;
+						goto cleanup;
+					}
+				}
+				addr = pci_map_single(dev->pdev, p, upsg->sg[i].count, data_dir);
+
+				psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
+				psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
+				byte_count += upsg->sg[i].count;
+				psg->sg[i].count = cpu_to_le32(upsg->sg[i].count);
+			}
+		} else {
+			struct user_sgmap* usg;
+			usg = kmalloc(actual_fibsize - sizeof(struct aac_srb)
+			  + sizeof(struct sgmap), GFP_KERNEL);
+			if (!usg) {
+				dprintk((KERN_DEBUG"aacraid: Allocation error in Raw SRB command\n"));
+				rcode = -ENOMEM;
+				goto cleanup;
+			}
+			memcpy (usg, upsg, actual_fibsize - sizeof(struct aac_srb)
+			  + sizeof(struct sgmap));
+			actual_fibsize = actual_fibsize64;
+
+			for (i = 0; i < usg->count; i++) {
+				u64 addr;
+				void* p;
+				if (usg->sg[i].count >
+				    ((dev->adapter_info.options &
+				     AAC_OPT_NEW_COMM) ?
+				      (dev->scsi_host_ptr->max_sectors << 9) :
+				      65536)) {
+					kfree(usg);
+					rcode = -EINVAL;
+					goto cleanup;
+				}
+				/* Does this really need to be GFP_DMA? */
+				p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+				if(!p) {
+					dprintk((KERN_DEBUG "aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+					  usg->sg[i].count,i,usg->count));
+					kfree(usg);
+					rcode = -ENOMEM;
+					goto cleanup;
+				}
+				sg_user[i] = (void __user *)(uintptr_t)usg->sg[i].addr;
+				sg_list[i] = p; // save so we can clean up later
+				sg_indx = i;
+
+				if (flags & SRB_DataOut) {
+					if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){
+						kfree (usg);
+						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
+						rcode = -EFAULT;
+						goto cleanup;
+					}
+				}
+				addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir);
+
+				psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
+				psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
+				byte_count += usg->sg[i].count;
+				psg->sg[i].count = cpu_to_le32(usg->sg[i].count);
+			}
+			kfree (usg);
+		}
+		srbcmd->count = cpu_to_le32(byte_count);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
+		status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL);
+	} else {
+		struct user_sgmap* upsg = &user_srbcmd->sg;
+		struct sgmap* psg = &srbcmd->sg;
+
+		if (actual_fibsize64 == fibsize) {
+			struct user_sgmap64* usg = (struct user_sgmap64 *)upsg;
+			for (i = 0; i < upsg->count; i++) {
+				uintptr_t addr;
+				void* p;
+				if (usg->sg[i].count >
+				    ((dev->adapter_info.options &
+				     AAC_OPT_NEW_COMM) ?
+				      (dev->scsi_host_ptr->max_sectors << 9) :
+				      65536)) {
+					rcode = -EINVAL;
+					goto cleanup;
+				}
+				/* Does this really need to be GFP_DMA? */
+				p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+				if(!p) {
+					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+					  usg->sg[i].count,i,usg->count));
+					rcode = -ENOMEM;
+					goto cleanup;
+				}
+				addr = (u64)usg->sg[i].addr[0];
+				addr += ((u64)usg->sg[i].addr[1]) << 32;
+				sg_user[i] = (void __user *)addr;
+				sg_list[i] = p; // save so we can clean up later
+				sg_indx = i;
+
+				if (flags & SRB_DataOut) {
+					if(copy_from_user(p,sg_user[i],usg->sg[i].count)){
+						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
+						rcode = -EFAULT;
+						goto cleanup;
+					}
+				}
+				addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir);
+
+				psg->sg[i].addr = cpu_to_le32(addr & 0xffffffff);
+				byte_count += usg->sg[i].count;
+				psg->sg[i].count = cpu_to_le32(usg->sg[i].count);
+			}
+		} else {
+			for (i = 0; i < upsg->count; i++) {
+				dma_addr_t addr;
+				void* p;
+				if (upsg->sg[i].count >
+				    ((dev->adapter_info.options &
+				     AAC_OPT_NEW_COMM) ?
+				      (dev->scsi_host_ptr->max_sectors << 9) :
+				      65536)) {
+					rcode = -EINVAL;
+					goto cleanup;
+				}
+				p = kmalloc(upsg->sg[i].count, GFP_KERNEL);
+				if (!p) {
+					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+					  upsg->sg[i].count, i, upsg->count));
+					rcode = -ENOMEM;
+					goto cleanup;
+				}
+				sg_user[i] = (void __user *)(uintptr_t)upsg->sg[i].addr;
+				sg_list[i] = p; // save so we can clean up later
+				sg_indx = i;
+
+				if (flags & SRB_DataOut) {
+					if(copy_from_user(p, sg_user[i],
+							upsg->sg[i].count)) {
+						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
+						rcode = -EFAULT;
+						goto cleanup;
+					}
+				}
+				addr = pci_map_single(dev->pdev, p,
+					upsg->sg[i].count, data_dir);
+
+				psg->sg[i].addr = cpu_to_le32(addr);
+				byte_count += upsg->sg[i].count;
+				psg->sg[i].count = cpu_to_le32(upsg->sg[i].count);
+			}
+		}
+		srbcmd->count = cpu_to_le32(byte_count);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
+		status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
+	}
+	if (status == -ERESTARTSYS) {
+		rcode = -ERESTARTSYS;
+		goto cleanup;
+	}
+
+	if (status != 0){
+		dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n"));
+		rcode = -ENXIO;
+		goto cleanup;
+	}
+
+	if (flags & SRB_DataIn) {
+		for(i = 0 ; i <= sg_indx; i++){
+			byte_count = le32_to_cpu(
+			  (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)
+			      ? ((struct sgmap64*)&srbcmd->sg)->sg[i].count
+			      : srbcmd->sg.sg[i].count);
+			if(copy_to_user(sg_user[i], sg_list[i], byte_count)){
+				dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n"));
+				rcode = -EFAULT;
+				goto cleanup;
+
+			}
+		}
+	}
+
+	reply = (struct aac_srb_reply *) fib_data(srbfib);
+	if(copy_to_user(user_reply,reply,sizeof(struct aac_srb_reply))){
+		dprintk((KERN_DEBUG"aacraid: Could not copy reply to user\n"));
+		rcode = -EFAULT;
+		goto cleanup;
+	}
+
+cleanup:
+	kfree(user_srbcmd);
+	for(i=0; i <= sg_indx; i++){
+		kfree(sg_list[i]);
+	}
+	if (rcode != -ERESTARTSYS) {
+		aac_fib_complete(srbfib);
+		aac_fib_free(srbfib);
+	}
+
+	return rcode;
+}
+
+struct aac_pci_info {
+	u32 bus;
+	u32 slot;
+};
+
+
+static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
+{
+	struct aac_pci_info pci_info;
+
+	pci_info.bus = dev->pdev->bus->number;
+	pci_info.slot = PCI_SLOT(dev->pdev->devfn);
+
+	if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
+		dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
+		return -EFAULT;
+	}
+	return 0;
+}
+
+
+int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
+{
+	int status;
+
+	/*
+	 *	HBA gets first crack
+	 */
+
+	status = aac_dev_ioctl(dev, cmd, arg);
+	if (status != -ENOTTY)
+		return status;
+
+	switch (cmd) {
+	case FSACTL_MINIPORT_REV_CHECK:
+		status = check_revision(dev, arg);
+		break;
+	case FSACTL_SEND_LARGE_FIB:
+	case FSACTL_SENDFIB:
+		status = ioctl_send_fib(dev, arg);
+		break;
+	case FSACTL_OPEN_GET_ADAPTER_FIB:
+		status = open_getadapter_fib(dev, arg);
+		break;
+	case FSACTL_GET_NEXT_ADAPTER_FIB:
+		status = next_getadapter_fib(dev, arg);
+		break;
+	case FSACTL_CLOSE_GET_ADAPTER_FIB:
+		status = close_getadapter_fib(dev, arg);
+		break;
+	case FSACTL_SEND_RAW_SRB:
+		status = aac_send_raw_srb(dev,arg);
+		break;
+	case FSACTL_GET_PCI_INFO:
+		status = aac_get_pci_info(dev,arg);
+		break;
+	default:
+		status = -ENOTTY;
+		break;
+	}
+	return status;
+}
+