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1121 lines
29 KiB
1121 lines
29 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
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* Adaptec AAC series RAID controller driver |
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* (c) Copyright 2001 Red Hat Inc. |
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* |
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* based on the old aacraid driver that is.. |
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* Adaptec aacraid device driver for Linux. |
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* |
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* Copyright (c) 2000-2010 Adaptec, Inc. |
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* 2010-2015 PMC-Sierra, Inc. ([email protected]) |
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* 2016-2017 Microsemi Corp. ([email protected]) |
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* |
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* Module Name: |
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* commctrl.c |
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* |
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* Abstract: Contains all routines for control of the AFA comm layer |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/types.h> |
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#include <linux/pci.h> |
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#include <linux/spinlock.h> |
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#include <linux/slab.h> |
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#include <linux/completion.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/blkdev.h> |
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#include <linux/compat.h> |
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#include <linux/delay.h> /* ssleep prototype */ |
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#include <linux/kthread.h> |
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#include <linux/uaccess.h> |
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#include <scsi/scsi_host.h> |
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|
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#include "aacraid.h" |
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|
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# define AAC_DEBUG_PREAMBLE KERN_INFO |
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# define AAC_DEBUG_POSTAMBLE |
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/** |
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* ioctl_send_fib - send a FIB from userspace |
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* @dev: adapter is being processed |
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* @arg: arguments to the ioctl call |
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* |
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* This routine sends a fib to the adapter on behalf of a user level |
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* program. |
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*/ |
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static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) |
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{ |
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struct hw_fib * kfib; |
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struct fib *fibptr; |
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struct hw_fib * hw_fib = (struct hw_fib *)0; |
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dma_addr_t hw_fib_pa = (dma_addr_t)0LL; |
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unsigned int size, osize; |
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int retval; |
|
|
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if (dev->in_reset) { |
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return -EBUSY; |
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} |
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fibptr = aac_fib_alloc(dev); |
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if(fibptr == NULL) { |
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return -ENOMEM; |
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} |
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|
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kfib = fibptr->hw_fib_va; |
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/* |
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* First copy in the header so that we can check the size field. |
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*/ |
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if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) { |
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aac_fib_free(fibptr); |
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return -EFAULT; |
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} |
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/* |
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* Since we copy based on the fib header size, make sure that we |
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* will not overrun the buffer when we copy the memory. Return |
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* an error if we would. |
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*/ |
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osize = size = le16_to_cpu(kfib->header.Size) + |
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sizeof(struct aac_fibhdr); |
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if (size < le16_to_cpu(kfib->header.SenderSize)) |
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size = le16_to_cpu(kfib->header.SenderSize); |
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if (size > dev->max_fib_size) { |
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dma_addr_t daddr; |
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|
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if (size > 2048) { |
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retval = -EINVAL; |
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goto cleanup; |
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} |
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|
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kfib = dma_alloc_coherent(&dev->pdev->dev, size, &daddr, |
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GFP_KERNEL); |
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if (!kfib) { |
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retval = -ENOMEM; |
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goto cleanup; |
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} |
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|
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/* Highjack the hw_fib */ |
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hw_fib = fibptr->hw_fib_va; |
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hw_fib_pa = fibptr->hw_fib_pa; |
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fibptr->hw_fib_va = kfib; |
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fibptr->hw_fib_pa = daddr; |
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memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size); |
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memcpy(kfib, hw_fib, dev->max_fib_size); |
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} |
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|
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if (copy_from_user(kfib, arg, size)) { |
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retval = -EFAULT; |
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goto cleanup; |
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} |
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|
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/* Sanity check the second copy */ |
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if ((osize != le16_to_cpu(kfib->header.Size) + |
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sizeof(struct aac_fibhdr)) |
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|| (size < le16_to_cpu(kfib->header.SenderSize))) { |
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retval = -EINVAL; |
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goto cleanup; |
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} |
|
|
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if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) { |
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aac_adapter_interrupt(dev); |
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/* |
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* Since we didn't really send a fib, zero out the state to allow |
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* cleanup code not to assert. |
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*/ |
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kfib->header.XferState = 0; |
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} else { |
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retval = aac_fib_send(le16_to_cpu(kfib->header.Command), fibptr, |
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le16_to_cpu(kfib->header.Size) , FsaNormal, |
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1, 1, NULL, NULL); |
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if (retval) { |
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goto cleanup; |
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} |
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if (aac_fib_complete(fibptr) != 0) { |
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retval = -EINVAL; |
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goto cleanup; |
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} |
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} |
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/* |
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* Make sure that the size returned by the adapter (which includes |
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* the header) is less than or equal to the size of a fib, so we |
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* don't corrupt application data. Then copy that size to the user |
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* buffer. (Don't try to add the header information again, since it |
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* was already included by the adapter.) |
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*/ |
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|
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retval = 0; |
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if (copy_to_user(arg, (void *)kfib, size)) |
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retval = -EFAULT; |
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cleanup: |
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if (hw_fib) { |
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dma_free_coherent(&dev->pdev->dev, size, kfib, |
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fibptr->hw_fib_pa); |
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fibptr->hw_fib_pa = hw_fib_pa; |
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fibptr->hw_fib_va = hw_fib; |
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} |
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if (retval != -ERESTARTSYS) |
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aac_fib_free(fibptr); |
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return retval; |
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} |
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|
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/** |
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* open_getadapter_fib - Get the next fib |
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* @dev: adapter is being processed |
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* @arg: arguments to the open call |
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* |
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* This routine will get the next Fib, if available, from the AdapterFibContext |
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* passed in from the user. |
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*/ |
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static int open_getadapter_fib(struct aac_dev * dev, void __user *arg) |
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{ |
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struct aac_fib_context * fibctx; |
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int status; |
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|
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fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL); |
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if (fibctx == NULL) { |
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status = -ENOMEM; |
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} else { |
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unsigned long flags; |
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struct list_head * entry; |
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struct aac_fib_context * context; |
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|
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fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT; |
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fibctx->size = sizeof(struct aac_fib_context); |
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/* |
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* Yes yes, I know this could be an index, but we have a |
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* better guarantee of uniqueness for the locked loop below. |
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* Without the aid of a persistent history, this also helps |
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* reduce the chance that the opaque context would be reused. |
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*/ |
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fibctx->unique = (u32)((ulong)fibctx & 0xFFFFFFFF); |
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/* |
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* Initialize the mutex used to wait for the next AIF. |
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*/ |
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init_completion(&fibctx->completion); |
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fibctx->wait = 0; |
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/* |
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* Initialize the fibs and set the count of fibs on |
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* the list to 0. |
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*/ |
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fibctx->count = 0; |
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INIT_LIST_HEAD(&fibctx->fib_list); |
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fibctx->jiffies = jiffies/HZ; |
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/* |
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* Now add this context onto the adapter's |
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* AdapterFibContext list. |
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*/ |
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spin_lock_irqsave(&dev->fib_lock, flags); |
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/* Ensure that we have a unique identifier */ |
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entry = dev->fib_list.next; |
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while (entry != &dev->fib_list) { |
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context = list_entry(entry, struct aac_fib_context, next); |
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if (context->unique == fibctx->unique) { |
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/* Not unique (32 bits) */ |
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fibctx->unique++; |
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entry = dev->fib_list.next; |
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} else { |
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entry = entry->next; |
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} |
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} |
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list_add_tail(&fibctx->next, &dev->fib_list); |
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spin_unlock_irqrestore(&dev->fib_lock, flags); |
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if (copy_to_user(arg, &fibctx->unique, |
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sizeof(fibctx->unique))) { |
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status = -EFAULT; |
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} else { |
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status = 0; |
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} |
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} |
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return status; |
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} |
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|
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struct compat_fib_ioctl { |
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u32 fibctx; |
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s32 wait; |
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compat_uptr_t fib; |
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}; |
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|
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/** |
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* next_getadapter_fib - get the next fib |
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* @dev: adapter to use |
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* @arg: ioctl argument |
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* |
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* This routine will get the next Fib, if available, from the AdapterFibContext |
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* passed in from the user. |
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*/ |
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static int next_getadapter_fib(struct aac_dev * dev, void __user *arg) |
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{ |
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struct fib_ioctl f; |
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struct fib *fib; |
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struct aac_fib_context *fibctx; |
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int status; |
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struct list_head * entry; |
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unsigned long flags; |
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|
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if (in_compat_syscall()) { |
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struct compat_fib_ioctl cf; |
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|
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if (copy_from_user(&cf, arg, sizeof(struct compat_fib_ioctl))) |
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return -EFAULT; |
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|
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f.fibctx = cf.fibctx; |
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f.wait = cf.wait; |
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f.fib = compat_ptr(cf.fib); |
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} else { |
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if (copy_from_user(&f, arg, sizeof(struct fib_ioctl))) |
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return -EFAULT; |
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} |
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/* |
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* Verify that the HANDLE passed in was a valid AdapterFibContext |
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* |
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* Search the list of AdapterFibContext addresses on the adapter |
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* to be sure this is a valid address |
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*/ |
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spin_lock_irqsave(&dev->fib_lock, flags); |
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entry = dev->fib_list.next; |
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fibctx = NULL; |
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|
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while (entry != &dev->fib_list) { |
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fibctx = list_entry(entry, struct aac_fib_context, next); |
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/* |
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* Extract the AdapterFibContext from the Input parameters. |
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*/ |
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if (fibctx->unique == f.fibctx) { /* We found a winner */ |
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break; |
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} |
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entry = entry->next; |
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fibctx = NULL; |
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} |
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if (!fibctx) { |
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spin_unlock_irqrestore(&dev->fib_lock, flags); |
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dprintk ((KERN_INFO "Fib Context not found\n")); |
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return -EINVAL; |
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} |
|
|
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if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || |
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(fibctx->size != sizeof(struct aac_fib_context))) { |
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spin_unlock_irqrestore(&dev->fib_lock, flags); |
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dprintk ((KERN_INFO "Fib Context corrupt?\n")); |
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return -EINVAL; |
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} |
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status = 0; |
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/* |
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* If there are no fibs to send back, then either wait or return |
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* -EAGAIN |
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*/ |
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return_fib: |
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if (!list_empty(&fibctx->fib_list)) { |
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/* |
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* Pull the next fib from the fibs |
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*/ |
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entry = fibctx->fib_list.next; |
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list_del(entry); |
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|
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fib = list_entry(entry, struct fib, fiblink); |
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fibctx->count--; |
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spin_unlock_irqrestore(&dev->fib_lock, flags); |
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if (copy_to_user(f.fib, fib->hw_fib_va, sizeof(struct hw_fib))) { |
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kfree(fib->hw_fib_va); |
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kfree(fib); |
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return -EFAULT; |
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} |
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/* |
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* Free the space occupied by this copy of the fib. |
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*/ |
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kfree(fib->hw_fib_va); |
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kfree(fib); |
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status = 0; |
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} else { |
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spin_unlock_irqrestore(&dev->fib_lock, flags); |
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/* If someone killed the AIF aacraid thread, restart it */ |
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status = !dev->aif_thread; |
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if (status && !dev->in_reset && dev->queues && dev->fsa_dev) { |
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/* Be paranoid, be very paranoid! */ |
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kthread_stop(dev->thread); |
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ssleep(1); |
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dev->aif_thread = 0; |
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dev->thread = kthread_run(aac_command_thread, dev, |
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"%s", dev->name); |
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ssleep(1); |
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} |
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if (f.wait) { |
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if (wait_for_completion_interruptible(&fibctx->completion) < 0) { |
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status = -ERESTARTSYS; |
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} else { |
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/* Lock again and retry */ |
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spin_lock_irqsave(&dev->fib_lock, flags); |
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goto return_fib; |
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} |
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} else { |
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status = -EAGAIN; |
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} |
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} |
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fibctx->jiffies = jiffies/HZ; |
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return status; |
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} |
|
|
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int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx) |
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{ |
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struct fib *fib; |
|
|
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/* |
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* First free any FIBs that have not been consumed. |
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*/ |
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while (!list_empty(&fibctx->fib_list)) { |
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struct list_head * entry; |
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/* |
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* Pull the next fib from the fibs |
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*/ |
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entry = fibctx->fib_list.next; |
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list_del(entry); |
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fib = list_entry(entry, struct fib, fiblink); |
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fibctx->count--; |
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/* |
|
* Free the space occupied by this copy of the fib. |
|
*/ |
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kfree(fib->hw_fib_va); |
|
kfree(fib); |
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} |
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/* |
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* Remove the Context from the AdapterFibContext List |
|
*/ |
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list_del(&fibctx->next); |
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/* |
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* Invalidate context |
|
*/ |
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fibctx->type = 0; |
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/* |
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* Free the space occupied by the Context |
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*/ |
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kfree(fibctx); |
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return 0; |
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} |
|
|
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/** |
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* 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. |
|
*/ |
|
|
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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_srb() |
|
* @dev: adapter is being processed |
|
* @arg: arguments to the send call |
|
*/ |
|
static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) |
|
{ |
|
struct fib* srbfib; |
|
int status; |
|
struct aac_srb *srbcmd = NULL; |
|
struct aac_hba_cmd_req *hbacmd = NULL; |
|
struct user_aac_srb *user_srbcmd = NULL; |
|
struct user_aac_srb __user *user_srb = arg; |
|
struct aac_srb_reply __user *user_reply; |
|
u32 chn; |
|
u32 fibsize = 0; |
|
u32 flags = 0; |
|
s32 rcode = 0; |
|
u32 data_dir; |
|
void __user *sg_user[HBA_MAX_SG_EMBEDDED]; |
|
void *sg_list[HBA_MAX_SG_EMBEDDED]; |
|
u32 sg_count[HBA_MAX_SG_EMBEDDED]; |
|
u32 sg_indx = 0; |
|
u32 byte_count = 0; |
|
u32 actual_fibsize64, actual_fibsize = 0; |
|
int i; |
|
int is_native_device; |
|
u64 address; |
|
|
|
|
|
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; |
|
} |
|
|
|
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 = memdup_user(user_srb, fibsize); |
|
if (IS_ERR(user_srbcmd)) { |
|
rcode = PTR_ERR(user_srbcmd); |
|
user_srbcmd = NULL; |
|
goto cleanup; |
|
} |
|
|
|
flags = user_srbcmd->flags; /* from user in cpu order */ |
|
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", |
|
user_srbcmd->sg.count)); |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
if ((data_dir == DMA_NONE) && user_srbcmd->sg.count) { |
|
dprintk((KERN_DEBUG"aacraid:SG with no direction specified\n")); |
|
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; |
|
} |
|
|
|
chn = user_srbcmd->channel; |
|
if (chn < AAC_MAX_BUSES && user_srbcmd->id < AAC_MAX_TARGETS && |
|
dev->hba_map[chn][user_srbcmd->id].devtype == |
|
AAC_DEVTYPE_NATIVE_RAW) { |
|
is_native_device = 1; |
|
hbacmd = (struct aac_hba_cmd_req *)srbfib->hw_fib_va; |
|
memset(hbacmd, 0, 96); /* sizeof(*hbacmd) is not necessary */ |
|
|
|
/* iu_type is a parameter of aac_hba_send */ |
|
switch (data_dir) { |
|
case DMA_TO_DEVICE: |
|
hbacmd->byte1 = 2; |
|
break; |
|
case DMA_FROM_DEVICE: |
|
case DMA_BIDIRECTIONAL: |
|
hbacmd->byte1 = 1; |
|
break; |
|
case DMA_NONE: |
|
default: |
|
break; |
|
} |
|
hbacmd->lun[1] = cpu_to_le32(user_srbcmd->lun); |
|
hbacmd->it_nexus = dev->hba_map[chn][user_srbcmd->id].rmw_nexus; |
|
|
|
/* |
|
* we fill in reply_qid later in aac_src_deliver_message |
|
* we fill in iu_type, request_id later in aac_hba_send |
|
* we fill in emb_data_desc_count, data_length later |
|
* in sg list build |
|
*/ |
|
|
|
memcpy(hbacmd->cdb, user_srbcmd->cdb, sizeof(hbacmd->cdb)); |
|
|
|
address = (u64)srbfib->hw_error_pa; |
|
hbacmd->error_ptr_hi = cpu_to_le32((u32)(address >> 32)); |
|
hbacmd->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff)); |
|
hbacmd->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE); |
|
hbacmd->emb_data_desc_count = |
|
cpu_to_le32(user_srbcmd->sg.count); |
|
srbfib->hbacmd_size = 64 + |
|
user_srbcmd->sg.count * sizeof(struct aac_hba_sgl); |
|
|
|
} else { |
|
is_native_device = 0; |
|
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); |
|
|
|
// 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)); |
|
} |
|
|
|
byte_count = 0; |
|
if (is_native_device) { |
|
struct user_sgmap *usg32 = &user_srbcmd->sg; |
|
struct user_sgmap64 *usg64 = |
|
(struct user_sgmap64 *)&user_srbcmd->sg; |
|
|
|
for (i = 0; i < usg32->count; i++) { |
|
void *p; |
|
u64 addr; |
|
|
|
sg_count[i] = (actual_fibsize64 == fibsize) ? |
|
usg64->sg[i].count : usg32->sg[i].count; |
|
if (sg_count[i] > |
|
(dev->scsi_host_ptr->max_sectors << 9)) { |
|
pr_err("aacraid: upsg->sg[%d].count=%u>%u\n", |
|
i, sg_count[i], |
|
dev->scsi_host_ptr->max_sectors << 9); |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
|
|
p = kmalloc(sg_count[i], GFP_KERNEL); |
|
if (!p) { |
|
rcode = -ENOMEM; |
|
goto cleanup; |
|
} |
|
|
|
if (actual_fibsize64 == fibsize) { |
|
addr = (u64)usg64->sg[i].addr[0]; |
|
addr += ((u64)usg64->sg[i].addr[1]) << 32; |
|
} else { |
|
addr = (u64)usg32->sg[i].addr; |
|
} |
|
|
|
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], |
|
sg_count[i])) { |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
addr = dma_map_single(&dev->pdev->dev, p, sg_count[i], |
|
data_dir); |
|
hbacmd->sge[i].addr_hi = cpu_to_le32((u32)(addr>>32)); |
|
hbacmd->sge[i].addr_lo = cpu_to_le32( |
|
(u32)(addr & 0xffffffff)); |
|
hbacmd->sge[i].len = cpu_to_le32(sg_count[i]); |
|
hbacmd->sge[i].flags = 0; |
|
byte_count += sg_count[i]; |
|
} |
|
|
|
if (usg32->count > 0) /* embedded sglist */ |
|
hbacmd->sge[usg32->count-1].flags = |
|
cpu_to_le32(0x40000000); |
|
hbacmd->data_length = cpu_to_le32(byte_count); |
|
|
|
status = aac_hba_send(HBA_IU_TYPE_SCSI_CMD_REQ, srbfib, |
|
NULL, NULL); |
|
|
|
} else 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; |
|
|
|
sg_count[i] = upsg->sg[i].count; |
|
if (sg_count[i] > |
|
((dev->adapter_info.options & |
|
AAC_OPT_NEW_COMM) ? |
|
(dev->scsi_host_ptr->max_sectors << 9) : |
|
65536)) { |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
|
|
p = kmalloc(sg_count[i], GFP_KERNEL); |
|
if(!p) { |
|
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
|
sg_count[i], 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], |
|
sg_count[i])){ |
|
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
addr = dma_map_single(&dev->pdev->dev, p, |
|
sg_count[i], data_dir); |
|
|
|
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
|
psg->sg[i].addr[1] = cpu_to_le32(addr>>32); |
|
byte_count += sg_count[i]; |
|
psg->sg[i].count = cpu_to_le32(sg_count[i]); |
|
} |
|
} else { |
|
struct user_sgmap* usg; |
|
usg = kmemdup(upsg, |
|
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; |
|
} |
|
actual_fibsize = actual_fibsize64; |
|
|
|
for (i = 0; i < usg->count; i++) { |
|
u64 addr; |
|
void* p; |
|
|
|
sg_count[i] = usg->sg[i].count; |
|
if (sg_count[i] > |
|
((dev->adapter_info.options & |
|
AAC_OPT_NEW_COMM) ? |
|
(dev->scsi_host_ptr->max_sectors << 9) : |
|
65536)) { |
|
kfree(usg); |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
|
|
p = kmalloc(sg_count[i], GFP_KERNEL); |
|
if(!p) { |
|
dprintk((KERN_DEBUG "aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
|
sg_count[i], 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], |
|
sg_count[i])) { |
|
kfree (usg); |
|
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
addr = dma_map_single(&dev->pdev->dev, p, |
|
sg_count[i], data_dir); |
|
|
|
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
|
psg->sg[i].addr[1] = cpu_to_le32(addr>>32); |
|
byte_count += sg_count[i]; |
|
psg->sg[i].count = cpu_to_le32(sg_count[i]); |
|
} |
|
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; |
|
|
|
sg_count[i] = usg->sg[i].count; |
|
if (sg_count[i] > |
|
((dev->adapter_info.options & |
|
AAC_OPT_NEW_COMM) ? |
|
(dev->scsi_host_ptr->max_sectors << 9) : |
|
65536)) { |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
p = kmalloc(sg_count[i], GFP_KERNEL); |
|
if (!p) { |
|
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
|
sg_count[i], 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], |
|
sg_count[i])){ |
|
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
addr = dma_map_single(&dev->pdev->dev, 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(sg_count[i]); |
|
} |
|
} else { |
|
for (i = 0; i < upsg->count; i++) { |
|
dma_addr_t addr; |
|
void* p; |
|
|
|
sg_count[i] = upsg->sg[i].count; |
|
if (sg_count[i] > |
|
((dev->adapter_info.options & |
|
AAC_OPT_NEW_COMM) ? |
|
(dev->scsi_host_ptr->max_sectors << 9) : |
|
65536)) { |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
p = kmalloc(sg_count[i], GFP_KERNEL); |
|
if (!p) { |
|
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
|
sg_count[i], 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], |
|
sg_count[i])) { |
|
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
addr = dma_map_single(&dev->pdev->dev, p, |
|
sg_count[i], data_dir); |
|
|
|
psg->sg[i].addr = cpu_to_le32(addr); |
|
byte_count += sg_count[i]; |
|
psg->sg[i].count = cpu_to_le32(sg_count[i]); |
|
} |
|
} |
|
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++){ |
|
if (copy_to_user(sg_user[i], sg_list[i], sg_count[i])) { |
|
dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
|
|
} |
|
} |
|
} |
|
|
|
user_reply = arg + fibsize; |
|
if (is_native_device) { |
|
struct aac_hba_resp *err = |
|
&((struct aac_native_hba *)srbfib->hw_fib_va)->resp.err; |
|
struct aac_srb_reply reply; |
|
|
|
memset(&reply, 0, sizeof(reply)); |
|
reply.status = ST_OK; |
|
if (srbfib->flags & FIB_CONTEXT_FLAG_FASTRESP) { |
|
/* fast response */ |
|
reply.srb_status = SRB_STATUS_SUCCESS; |
|
reply.scsi_status = 0; |
|
reply.data_xfer_length = byte_count; |
|
reply.sense_data_size = 0; |
|
memset(reply.sense_data, 0, AAC_SENSE_BUFFERSIZE); |
|
} else { |
|
reply.srb_status = err->service_response; |
|
reply.scsi_status = err->status; |
|
reply.data_xfer_length = byte_count - |
|
le32_to_cpu(err->residual_count); |
|
reply.sense_data_size = err->sense_response_data_len; |
|
memcpy(reply.sense_data, err->sense_response_buf, |
|
AAC_SENSE_BUFFERSIZE); |
|
} |
|
if (copy_to_user(user_reply, &reply, |
|
sizeof(struct aac_srb_reply))) { |
|
dprintk((KERN_DEBUG"aacraid: Copy to user failed\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} else { |
|
struct aac_srb_reply *reply; |
|
|
|
reply = (struct aac_srb_reply *) fib_data(srbfib); |
|
if (copy_to_user(user_reply, reply, |
|
sizeof(struct aac_srb_reply))) { |
|
dprintk((KERN_DEBUG"aacraid: Copy to user failed\n")); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
|
|
cleanup: |
|
kfree(user_srbcmd); |
|
if (rcode != -ERESTARTSYS) { |
|
for (i = 0; i <= sg_indx; i++) |
|
kfree(sg_list[i]); |
|
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; |
|
} |
|
|
|
static int aac_get_hba_info(struct aac_dev *dev, void __user *arg) |
|
{ |
|
struct aac_hba_info hbainfo; |
|
|
|
memset(&hbainfo, 0, sizeof(hbainfo)); |
|
hbainfo.adapter_number = (u8) dev->id; |
|
hbainfo.system_io_bus_number = dev->pdev->bus->number; |
|
hbainfo.device_number = (dev->pdev->devfn >> 3); |
|
hbainfo.function_number = (dev->pdev->devfn & 0x0007); |
|
|
|
hbainfo.vendor_id = dev->pdev->vendor; |
|
hbainfo.device_id = dev->pdev->device; |
|
hbainfo.sub_vendor_id = dev->pdev->subsystem_vendor; |
|
hbainfo.sub_system_id = dev->pdev->subsystem_device; |
|
|
|
if (copy_to_user(arg, &hbainfo, sizeof(struct aac_hba_info))) { |
|
dprintk((KERN_DEBUG "aacraid: Could not copy hba info\n")); |
|
return -EFAULT; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
struct aac_reset_iop { |
|
u8 reset_type; |
|
}; |
|
|
|
static int aac_send_reset_adapter(struct aac_dev *dev, void __user *arg) |
|
{ |
|
struct aac_reset_iop reset; |
|
int retval; |
|
|
|
if (copy_from_user((void *)&reset, arg, sizeof(struct aac_reset_iop))) |
|
return -EFAULT; |
|
|
|
dev->adapter_shutdown = 1; |
|
|
|
mutex_unlock(&dev->ioctl_mutex); |
|
retval = aac_reset_adapter(dev, 0, reset.reset_type); |
|
mutex_lock(&dev->ioctl_mutex); |
|
|
|
return retval; |
|
} |
|
|
|
int aac_do_ioctl(struct aac_dev *dev, unsigned int cmd, void __user *arg) |
|
{ |
|
int status; |
|
|
|
mutex_lock(&dev->ioctl_mutex); |
|
|
|
if (dev->adapter_shutdown) { |
|
status = -EACCES; |
|
goto cleanup; |
|
} |
|
|
|
/* |
|
* HBA gets first crack |
|
*/ |
|
|
|
status = aac_dev_ioctl(dev, cmd, arg); |
|
if (status != -ENOTTY) |
|
goto cleanup; |
|
|
|
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; |
|
case FSACTL_GET_HBA_INFO: |
|
status = aac_get_hba_info(dev, arg); |
|
break; |
|
case FSACTL_RESET_IOP: |
|
status = aac_send_reset_adapter(dev, arg); |
|
break; |
|
|
|
default: |
|
status = -ENOTTY; |
|
break; |
|
} |
|
|
|
cleanup: |
|
mutex_unlock(&dev->ioctl_mutex); |
|
|
|
return status; |
|
} |
|
|
|
|