forked from Minki/linux
a0c1c185fb
For one GFP_DMA32 does not actually work with kmalloc, as we only have GFP_DMA and GFP_KERNEL caches, but not GFP_DMA32. Second the memory is mapped using the proper DMA API anyway, which would include proper bounce buffering if needed by the device. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
1124 lines
29 KiB
C
1124 lines
29 KiB
C
/*
|
|
* 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. (aacraid@pmc-sierra.com)
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* 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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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/delay.h> /* ssleep prototype */
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#include <linux/kthread.h>
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#include <linux/semaphore.h>
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#include <linux/uaccess.h>
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#include <scsi/scsi_host.h>
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#include "aacraid.h"
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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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# define AAC_DEBUG_PREAMBLE KERN_INFO
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# define AAC_DEBUG_POSTAMBLE
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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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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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if (size > 2048) {
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retval = -EINVAL;
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goto cleanup;
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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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/* 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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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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/* 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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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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* open_getadapter_fib - Get the next fib
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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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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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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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sema_init(&fibctx->wait_sem, 0);
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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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* 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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if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl)))
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return -EFAULT;
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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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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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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(down_interruptible(&fibctx->wait_sem) < 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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/*
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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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}
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/*
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* Remove the Context from the AdapterFibContext List
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*/
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list_del(&fibctx->next);
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/*
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* Invalidate context
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*/
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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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* close_getadapter_fib - close down user fib context
|
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* @dev: adapter
|
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* @arg: ioctl arguments
|
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*
|
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* 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)
|
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{
|
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struct aac_fib_context *fibctx;
|
|
int status;
|
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unsigned long flags;
|
|
struct list_head * entry;
|
|
|
|
/*
|
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* Verify that the HANDLE passed in was a valid AdapterFibContext
|
|
*
|
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* Search the list of AdapterFibContext addresses on the adapter
|
|
* to be sure this is a valid address
|
|
*/
|
|
|
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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 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 = 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;
|
|
}
|
|
|
|
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 = pci_map_single(dev->pdev, 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 = pci_map_single(dev->pdev, 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 = pci_map_single(dev->pdev, 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 = 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(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 = pci_map_single(dev->pdev, 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, 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;
|
|
}
|
|
|