cciss.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:60k
- /*
- * Disk Array driver for Compaq SMART2 Controllers
- * Copyright 2000 Compaq Computer Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Questions/Comments/Bugfixes to arrays@compaq.com
- *
- */
- #include <linux/config.h> /* CONFIG_PROC_FS */
- #include <linux/module.h>
- #include <linux/version.h>
- #include <linux/types.h>
- #include <linux/pci.h>
- #include <linux/kernel.h>
- #include <linux/slab.h>
- #include <linux/delay.h>
- #include <linux/major.h>
- #include <linux/fs.h>
- #include <linux/blkpg.h>
- #include <linux/timer.h>
- #include <linux/proc_fs.h>
- #include <linux/init.h>
- #include <linux/hdreg.h>
- #include <linux/spinlock.h>
- #include <asm/uaccess.h>
- #include <asm/io.h>
- #include <linux/blk.h>
- #include <linux/blkdev.h>
- #include <linux/genhd.h>
- #define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin))
- #define DRIVER_NAME "Compaq CISS Driver (v 2.4.5)"
- #define DRIVER_VERSION CCISS_DRIVER_VERSION(2,4,5)
- /* Embedded module documentation macros - see modules.h */
- MODULE_AUTHOR("Charles M. White III - Compaq Computer Corporation");
- MODULE_DESCRIPTION("Driver for Compaq Smart Array Controller 5300");
- MODULE_LICENSE("GPL");
- #include "cciss_cmd.h"
- #include "cciss.h"
- #include <linux/cciss_ioctl.h>
- /* define the PCI info for the cards we can control */
- const struct pci_device_id cciss_pci_device_id[] = {
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISS,
- 0x0E11, 0x4070, 0, 0, 0},
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB,
- 0x0E11, 0x4080, 0, 0, 0},
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB,
- 0x0E11, 0x4082, 0, 0, 0},
- {0,}
- };
- MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
- #define NR_PRODUCTS (sizeof(products)/sizeof(struct board_type))
- /* board_id = Subsystem Device ID & Vendor ID
- * product = Marketing Name for the board
- * access = Address of the struct of function pointers
- */
- static struct board_type products[] = {
- { 0x40700E11, "Smart Array 5300", &SA5_access },
- { 0x40800E11, "Smart Array 5i", &SA5B_access},
- { 0x40820E11, "Smart Array 532", &SA5B_access},
- };
- /* How long to wait (in millesconds) for board to go into simple mode */
- #define MAX_CONFIG_WAIT 1000
- #define READ_AHEAD 128
- #define NR_CMDS 128 /* #commands that can be outstanding */
- #define MAX_CTLR 8
- #define CCISS_DMA_MASK 0xFFFFFFFF /* 32 bit DMA */
- static ctlr_info_t *hba[MAX_CTLR];
- static struct proc_dir_entry *proc_cciss;
- static void do_cciss_request(request_queue_t *q);
- static int cciss_open(struct inode *inode, struct file *filep);
- static int cciss_release(struct inode *inode, struct file *filep);
- static int cciss_ioctl(struct inode *inode, struct file *filep,
- unsigned int cmd, unsigned long arg);
- static int revalidate_allvol(kdev_t dev);
- static int revalidate_logvol(kdev_t dev, int maxusage);
- static int frevalidate_logvol(kdev_t dev);
- static void cciss_getgeometry(int cntl_num);
- static inline void addQ(CommandList_struct **Qptr, CommandList_struct *c);
- static void start_io( ctlr_info_t *h);
- #ifdef CONFIG_PROC_FS
- static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
- int length, int *eof, void *data);
- static void cciss_procinit(int i);
- #else
- static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
- int length, int *eof, void *data) { return 0;}
- static void cciss_procinit(int i) {}
- #endif /* CONFIG_PROC_FS */
- static struct block_device_operations cciss_fops = {
- owner: THIS_MODULE,
- open: cciss_open,
- release: cciss_release,
- ioctl: cciss_ioctl,
- revalidate: frevalidate_logvol,
- };
- /*
- * Report information about this controller.
- */
- #ifdef CONFIG_PROC_FS
- static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
- int length, int *eof, void *data)
- {
- off_t pos = 0;
- off_t len = 0;
- int size, i, ctlr;
- ctlr_info_t *h = (ctlr_info_t*)data;
- drive_info_struct *drv;
- ctlr = h->ctlr;
- size = sprintf(buffer, "%s: Compaq %s Controllern"
- " Board ID: 0x%08lxn"
- " Firmware Version: %c%c%c%cn"
- " Memory Address: 0x%08lxn"
- " IRQ: %dn"
- " Logical drives: %dn"
- " Current Q depth: %dn"
- " Current # commands on controller %dn"
- " Max Q depth since init: %dn"
- " Max # commands on controller since init: %dn"
- " Max SG entries since init: %dnn",
- h->devname,
- h->product_name,
- (unsigned long)h->board_id,
- h->firm_ver[0], h->firm_ver[1], h->firm_ver[2], h->firm_ver[3],
- (unsigned long)h->vaddr,
- (unsigned int)h->intr,
- h->num_luns,
- h->Qdepth, h->commands_outstanding,
- h->maxQsinceinit, h->max_outstanding, h->maxSG);
- pos += size; len += size;
- for(i=0; i<h->num_luns; i++) {
- drv = &h->drv[i];
- size = sprintf(buffer+len, "cciss/c%dd%d: blksz=%d nr_blocks=%dn",
- ctlr, i, drv->block_size, drv->nr_blocks);
- pos += size; len += size;
- }
- size = sprintf(buffer+len, "nr_allocs = %dnnr_frees = %dn",
- h->nr_allocs, h->nr_frees);
- pos += size; len += size;
- *eof = 1;
- *start = buffer+offset;
- len -= offset;
- if (len>length)
- len = length;
- return len;
- }
- /*
- * Get us a file in /proc/cciss that says something about each controller.
- * Create /proc/cciss if it doesn't exist yet.
- */
- static void __init cciss_procinit(int i)
- {
- if (proc_cciss == NULL) {
- proc_cciss = proc_mkdir("cciss", proc_root_driver);
- if (!proc_cciss)
- return;
- }
- create_proc_read_entry(hba[i]->devname, 0, proc_cciss,
- cciss_proc_get_info, hba[i]);
- }
- #endif /* CONFIG_PROC_FS */
- /*
- * For operations that cannot sleep, a command block is allocated at init,
- * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
- * which ones are free or in use. For operations that can wait for kmalloc
- * to possible sleep, this routine can be called with get_from_pool set to 0.
- * cmd_free() MUST be called with a got_from_pool set to 0 if cmd_alloc was.
- */
- static CommandList_struct * cmd_alloc(ctlr_info_t *h, int get_from_pool)
- {
- CommandList_struct *c;
- int i;
- u64bit temp64;
- dma_addr_t cmd_dma_handle, err_dma_handle;
- if (!get_from_pool)
- {
- c = (CommandList_struct *) pci_alloc_consistent(
- h->pdev, sizeof(CommandList_struct), &cmd_dma_handle);
- if(c==NULL)
- return NULL;
- memset(c, 0, sizeof(CommandList_struct));
- c->err_info = (ErrorInfo_struct *)pci_alloc_consistent(
- h->pdev, sizeof(ErrorInfo_struct),
- &err_dma_handle);
-
- if (c->err_info == NULL)
- {
- pci_free_consistent(h->pdev,
- sizeof(CommandList_struct), c, cmd_dma_handle);
- return NULL;
- }
- memset(c->err_info, 0, sizeof(ErrorInfo_struct));
- } else /* get it out of the controllers pool */
- {
- do {
- i = find_first_zero_bit(h->cmd_pool_bits, NR_CMDS);
- if (i == NR_CMDS)
- return NULL;
- } while(test_and_set_bit(i%32, h->cmd_pool_bits+(i/32)) != 0);
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss: using command buffer %dn", i);
- #endif
- c = h->cmd_pool + i;
- memset(c, 0, sizeof(CommandList_struct));
- cmd_dma_handle = h->cmd_pool_dhandle
- + i*sizeof(CommandList_struct);
- c->err_info = h->errinfo_pool + i;
- memset(c->err_info, 0, sizeof(ErrorInfo_struct));
- err_dma_handle = h->errinfo_pool_dhandle
- + i*sizeof(ErrorInfo_struct);
- h->nr_allocs++;
- }
- c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_dma_handle;
- c->ErrDesc.Addr.lower = temp64.val32.lower;
- c->ErrDesc.Addr.upper = temp64.val32.upper;
- c->ErrDesc.Len = sizeof(ErrorInfo_struct);
-
- c->ctlr = h->ctlr;
- return c;
- }
- /*
- * Frees a command block that was previously allocated with cmd_alloc().
- */
- static void cmd_free(ctlr_info_t *h, CommandList_struct *c, int got_from_pool)
- {
- int i;
- u64bit temp64;
- if( !got_from_pool)
- {
- temp64.val32.lower = c->ErrDesc.Addr.lower;
- temp64.val32.upper = c->ErrDesc.Addr.upper;
- pci_free_consistent(h->pdev, sizeof(ErrorInfo_struct),
- c->err_info, (dma_addr_t) temp64.val);
- pci_free_consistent(h->pdev, sizeof(CommandList_struct),
- c, (dma_addr_t) c->busaddr);
- } else
- {
- i = c - h->cmd_pool;
- clear_bit(i%32, h->cmd_pool_bits+(i/32));
- h->nr_frees++;
- }
- }
- /*
- * fills in the disk information.
- */
- static void cciss_geninit( int ctlr)
- {
- drive_info_struct *drv;
- int i,j;
-
- /* Loop through each real device */
- hba[ctlr]->gendisk.nr_real = 0;
- for(i=0; i< NWD; i++)
- {
- drv = &(hba[ctlr]->drv[i]);
- if( !(drv->nr_blocks))
- continue;
- hba[ctlr]->hd[i << NWD_SHIFT].nr_sects =
- hba[ctlr]->sizes[i << NWD_SHIFT] = drv->nr_blocks;
- /* for each partition */
- for(j=0; j<MAX_PART; j++)
- {
- hba[ctlr]->blocksizes[(i<<NWD_SHIFT) + j] = 1024;
- hba[ctlr]->hardsizes[ (i<<NWD_SHIFT) + j] =
- drv->block_size;
- }
- hba[ctlr]->gendisk.nr_real++;
- }
- }
- /*
- * Open. Make sure the device is really there.
- */
- static int cciss_open(struct inode *inode, struct file *filep)
- {
- int ctlr = MAJOR(inode->i_rdev) - MAJOR_NR;
- int dsk = MINOR(inode->i_rdev) >> NWD_SHIFT;
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss_open %x (%x:%x)n", inode->i_rdev, ctlr, dsk);
- #endif /* CCISS_DEBUG */
- if (ctlr > MAX_CTLR || hba[ctlr] == NULL)
- return -ENXIO;
- if (!suser() && hba[ctlr]->sizes[ MINOR(inode->i_rdev)] == 0)
- return -ENXIO;
- /*
- * Root is allowed to open raw volume zero even if its not configured
- * so array config can still work. I don't think I really like this,
- * but I'm already using way to many device nodes to claim another one
- * for "raw controller".
- */
- if (suser()
- && (hba[ctlr]->sizes[MINOR(inode->i_rdev)] == 0)
- && (MINOR(inode->i_rdev)!= 0))
- return -ENXIO;
- hba[ctlr]->drv[dsk].usage_count++;
- hba[ctlr]->usage_count++;
- return 0;
- }
- /*
- * Close. Sync first.
- */
- static int cciss_release(struct inode *inode, struct file *filep)
- {
- int ctlr = MAJOR(inode->i_rdev) - MAJOR_NR;
- int dsk = MINOR(inode->i_rdev) >> NWD_SHIFT;
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss_release %x (%x:%x)n", inode->i_rdev, ctlr, dsk);
- #endif /* CCISS_DEBUG */
- /* fsync_dev(inode->i_rdev); */
- hba[ctlr]->drv[dsk].usage_count--;
- hba[ctlr]->usage_count--;
- return 0;
- }
- /*
- * ioctl
- */
- static int cciss_ioctl(struct inode *inode, struct file *filep,
- unsigned int cmd, unsigned long arg)
- {
- int ctlr = MAJOR(inode->i_rdev) - MAJOR_NR;
- int dsk = MINOR(inode->i_rdev) >> NWD_SHIFT;
- int diskinfo[4];
- struct hd_geometry *geo = (struct hd_geometry *)arg;
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss_ioctl: Called with cmd=%x %lxn", cmd, arg);
- #endif /* CCISS_DEBUG */
-
- switch(cmd) {
- case HDIO_GETGEO:
- if (hba[ctlr]->drv[dsk].cylinders) {
- diskinfo[0] = hba[ctlr]->drv[dsk].heads;
- diskinfo[1] = hba[ctlr]->drv[dsk].sectors;
- diskinfo[2] = hba[ctlr]->drv[dsk].cylinders;
- } else {
- diskinfo[0] = 0xff;
- diskinfo[1] = 0x3f;
- diskinfo[2] = hba[ctlr]->drv[dsk].nr_blocks / (0xff*0x3f); }
- put_user(diskinfo[0], &geo->heads);
- put_user(diskinfo[1], &geo->sectors);
- put_user(diskinfo[2], &geo->cylinders);
- put_user(hba[ctlr]->hd[MINOR(inode->i_rdev)].start_sect, &geo->start);
- return 0;
- case BLKGETSIZE:
- put_user(hba[ctlr]->hd[MINOR(inode->i_rdev)].nr_sects, (unsigned long *)arg);
- return 0;
- case BLKGETSIZE64:
- put_user((u64)hba[ctlr]->hd[MINOR(inode->i_rdev)].nr_sects << 9, (u64*)arg);
- return 0;
- case BLKRRPART:
- return revalidate_logvol(inode->i_rdev, 1);
- case BLKFLSBUF:
- case BLKBSZSET:
- case BLKBSZGET:
- case BLKROSET:
- case BLKROGET:
- case BLKRASET:
- case BLKRAGET:
- case BLKPG:
- case BLKELVGET:
- case BLKELVSET:
- return( blk_ioctl(inode->i_rdev, cmd, arg));
- case CCISS_GETPCIINFO:
- {
- cciss_pci_info_struct pciinfo;
- if (!arg) return -EINVAL;
- pciinfo.bus = hba[ctlr]->pdev->bus->number;
- pciinfo.dev_fn = hba[ctlr]->pdev->devfn;
- pciinfo.board_id = hba[ctlr]->board_id;
- if (copy_to_user((void *) arg, &pciinfo, sizeof( cciss_pci_info_struct )))
- return -EFAULT;
- return(0);
- }
- case CCISS_GETINTINFO:
- {
- cciss_coalint_struct intinfo;
- ctlr_info_t *c = hba[ctlr];
- if (!arg) return -EINVAL;
- intinfo.delay = readl(&c->cfgtable->HostWrite.CoalIntDelay);
- intinfo.count = readl(&c->cfgtable->HostWrite.CoalIntCount);
- if (copy_to_user((void *) arg, &intinfo, sizeof( cciss_coalint_struct )))
- return -EFAULT;
- return(0);
- }
- case CCISS_SETINTINFO:
- {
- cciss_coalint_struct intinfo;
- ctlr_info_t *c = hba[ctlr];
- unsigned long flags;
- int i;
- if (!arg) return -EINVAL;
- if (!capable(CAP_SYS_ADMIN)) return -EPERM;
- if (copy_from_user(&intinfo, (void *) arg, sizeof( cciss_coalint_struct)))
- return -EFAULT;
- if ( (intinfo.delay == 0 ) && (intinfo.count == 0))
- {
- // printk("cciss_ioctl: delay and count cannot be 0n");
- return( -EINVAL);
- }
- spin_lock_irqsave(&io_request_lock, flags);
- /* Can only safely update if no commands outstanding */
- if (c->commands_outstanding > 0 )
- {
- // printk("cciss_ioctl: cannot change coalasing "
- // "%d commands outstanding on controllern",
- // c->commands_outstanding);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return(-EINVAL);
- }
- /* Update the field, and then ring the doorbell */
- writel( intinfo.delay,
- &(c->cfgtable->HostWrite.CoalIntDelay));
- writel( intinfo.count,
- &(c->cfgtable->HostWrite.CoalIntCount));
- writel( CFGTBL_ChangeReq, c->vaddr + SA5_DOORBELL);
- for(i=0;i<MAX_CONFIG_WAIT;i++)
- {
- if (!(readl(c->vaddr + SA5_DOORBELL)
- & CFGTBL_ChangeReq))
- break;
- /* delay and try again */
- udelay(1000);
- }
- spin_unlock_irqrestore(&io_request_lock, flags);
- if (i >= MAX_CONFIG_WAIT)
- return( -EFAULT);
- return(0);
- }
- case CCISS_GETNODENAME:
- {
- NodeName_type NodeName;
- ctlr_info_t *c = hba[ctlr];
- int i;
- if (!arg) return -EINVAL;
- for(i=0;i<16;i++)
- NodeName[i] = readb(&c->cfgtable->ServerName[i]);
- if (copy_to_user((void *) arg, NodeName, sizeof( NodeName_type)))
- return -EFAULT;
- return(0);
- }
- case CCISS_SETNODENAME:
- {
- NodeName_type NodeName;
- ctlr_info_t *c = hba[ctlr];
- unsigned long flags;
- int i;
- if (!arg) return -EINVAL;
- if (!capable(CAP_SYS_ADMIN)) return -EPERM;
-
- if (copy_from_user(NodeName, (void *) arg, sizeof( NodeName_type)))
- return -EFAULT;
- spin_lock_irqsave(&io_request_lock, flags);
- /* Update the field, and then ring the doorbell */
- for(i=0;i<16;i++)
- writeb( NodeName[i], &c->cfgtable->ServerName[i]);
-
- writel( CFGTBL_ChangeReq, c->vaddr + SA5_DOORBELL);
- for(i=0;i<MAX_CONFIG_WAIT;i++)
- {
- if (!(readl(c->vaddr + SA5_DOORBELL)
- & CFGTBL_ChangeReq))
- break;
- /* delay and try again */
- udelay(1000);
- }
- spin_unlock_irqrestore(&io_request_lock, flags);
- if (i >= MAX_CONFIG_WAIT)
- return( -EFAULT);
- return(0);
- }
- case CCISS_GETHEARTBEAT:
- {
- Heartbeat_type heartbeat;
- ctlr_info_t *c = hba[ctlr];
- if (!arg) return -EINVAL;
- heartbeat = readl(&c->cfgtable->HeartBeat);
- if (copy_to_user((void *) arg, &heartbeat, sizeof( Heartbeat_type)))
- return -EFAULT;
- return(0);
- }
- case CCISS_GETBUSTYPES:
- {
- BusTypes_type BusTypes;
- ctlr_info_t *c = hba[ctlr];
- if (!arg) return -EINVAL;
- BusTypes = readl(&c->cfgtable->BusTypes);
- if (copy_to_user((void *) arg, &BusTypes, sizeof( BusTypes_type) ))
- return -EFAULT;
- return(0);
- }
- case CCISS_GETFIRMVER:
- {
- FirmwareVer_type firmware;
- if (!arg) return -EINVAL;
- memcpy(firmware, hba[ctlr]->firm_ver, 4);
- if (copy_to_user((void *) arg, firmware, sizeof( FirmwareVer_type)))
- return -EFAULT;
- return(0);
- }
- case CCISS_GETDRIVVER:
- {
- DriverVer_type DriverVer = DRIVER_VERSION;
- if (!arg) return -EINVAL;
- if (copy_to_user((void *) arg, &DriverVer, sizeof( DriverVer_type) ))
- return -EFAULT;
- return(0);
- }
- case CCISS_REVALIDVOLS:
- return( revalidate_allvol(inode->i_rdev));
-
- case CCISS_PASSTHRU:
- {
- IOCTL_Command_struct iocommand;
- ctlr_info_t *h = hba[ctlr];
- CommandList_struct *c;
- char *buff = NULL;
- u64bit temp64;
- unsigned long flags;
- if (!arg) return -EINVAL;
-
- if (!capable(CAP_SYS_RAWIO)) return -EPERM;
- if (copy_from_user(&iocommand, (void *) arg, sizeof( IOCTL_Command_struct) ))
- return -EFAULT;
- if((iocommand.buf_size < 1) &&
- (iocommand.Request.Type.Direction != XFER_NONE))
- {
- return -EINVAL;
- }
- /* Check kmalloc limits */
- if(iocommand.buf_size > 128000)
- return -EINVAL;
- if(iocommand.buf_size > 0)
- {
- buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
- if( buff == NULL)
- return -EFAULT;
- }
- if (iocommand.Request.Type.Direction == XFER_WRITE)
- {
- /* Copy the data into the buffer we created */
- if (copy_from_user(buff, iocommand.buf, iocommand.buf_size))
- {
- kfree(buff);
- return -EFAULT;
- }
- }
- if ((c = cmd_alloc(h , 0)) == NULL)
- {
- kfree(buff);
- return -ENOMEM;
- }
- // Fill in the command type
- c->cmd_type = CMD_IOCTL_PEND;
- // Fill in Command Header
- c->Header.ReplyQueue = 0; // unused in simple mode
- if( iocommand.buf_size > 0) // buffer to fill
- {
- c->Header.SGList = 1;
- c->Header.SGTotal= 1;
- } else // no buffers to fill
- {
- c->Header.SGList = 0;
- c->Header.SGTotal= 0;
- }
- c->Header.LUN = iocommand.LUN_info;
- c->Header.Tag.lower = c->busaddr; // use the kernel address the cmd block for tag
-
- // Fill in Request block
- c->Request = iocommand.Request;
-
- // Fill in the scatter gather information
- if (iocommand.buf_size > 0 )
- {
- temp64.val = pci_map_single( h->pdev, buff,
- iocommand.buf_size,
- PCI_DMA_BIDIRECTIONAL);
- c->SG[0].Addr.lower = temp64.val32.lower;
- c->SG[0].Addr.upper = temp64.val32.upper;
- c->SG[0].Len = iocommand.buf_size;
- c->SG[0].Ext = 0; // we are not chaining
- }
- /* Put the request on the tail of the request queue */
- spin_lock_irqsave(&io_request_lock, flags);
- addQ(&h->reqQ, c);
- h->Qdepth++;
- start_io(h);
- spin_unlock_irqrestore(&io_request_lock, flags);
- /* Wait for completion */
- while(c->cmd_type != CMD_IOCTL_DONE)
- schedule_timeout(1);
- /* unlock the buffers from DMA */
- temp64.val32.lower = c->SG[0].Addr.lower;
- temp64.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single( h->pdev, (dma_addr_t) temp64.val,
- iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
- /* Copy the error information out */
- iocommand.error_info = *(c->err_info);
- if ( copy_to_user((void *) arg, &iocommand, sizeof( IOCTL_Command_struct) ) )
- {
- kfree(buff);
- cmd_free(h, c, 0);
- return( -EFAULT);
- }
- if (iocommand.Request.Type.Direction == XFER_READ)
- {
- /* Copy the data out of the buffer we created */
- if (copy_to_user(iocommand.buf, buff, iocommand.buf_size))
- {
- kfree(buff);
- cmd_free(h, c, 0);
- return -EFAULT;
- }
- }
- kfree(buff);
- cmd_free(h, c, 0);
- return(0);
- }
- default:
- return -EBADRQC;
- }
-
- }
- /* Borrowed and adapted from sd.c */
- static int revalidate_logvol(kdev_t dev, int maxusage)
- {
- int ctlr, target;
- struct gendisk *gdev;
- unsigned long flags;
- int max_p;
- int start;
- int i;
- target = MINOR(dev) >> NWD_SHIFT;
- ctlr = MAJOR(dev) - MAJOR_NR;
- gdev = &(hba[ctlr]->gendisk);
- spin_lock_irqsave(&io_request_lock, flags);
- if (hba[ctlr]->drv[target].usage_count > maxusage) {
- spin_unlock_irqrestore(&io_request_lock, flags);
- printk(KERN_WARNING "cciss: Device busy for "
- "revalidation (usage=%d)n",
- hba[ctlr]->drv[target].usage_count);
- return -EBUSY;
- }
- hba[ctlr]->drv[target].usage_count++;
- spin_unlock_irqrestore(&io_request_lock, flags);
- max_p = gdev->max_p;
- start = target << gdev->minor_shift;
- for(i=max_p-1; i>=0; i--) {
- int minor = start+i;
- invalidate_device(MKDEV(MAJOR_NR + ctlr, minor), 1);
- gdev->part[minor].start_sect = 0;
- gdev->part[minor].nr_sects = 0;
- /* reset the blocksize so we can read the partition table */
- blksize_size[MAJOR_NR+ctlr][minor] = 1024;
- }
- /* setup partitions per disk */
- grok_partitions(gdev, target, MAX_PART,
- hba[ctlr]->drv[target].nr_blocks);
- hba[ctlr]->drv[target].usage_count--;
- return 0;
- }
- static int frevalidate_logvol(kdev_t dev)
- {
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss: frevalidate has been calledn");
- #endif /* CCISS_DEBUG */
- return revalidate_logvol(dev, 0);
- }
- /*
- * revalidate_allvol is for online array config utilities. After a
- * utility reconfigures the drives in the array, it can use this function
- * (through an ioctl) to make the driver zap any previous disk structs for
- * that controller and get new ones.
- *
- * Right now I'm using the getgeometry() function to do this, but this
- * function should probably be finer grained and allow you to revalidate one
- * particualar logical volume (instead of all of them on a particular
- * controller).
- */
- static int revalidate_allvol(kdev_t dev)
- {
- int ctlr, i;
- unsigned long flags;
- ctlr = MAJOR(dev) - MAJOR_NR;
- if (MINOR(dev) != 0)
- return -ENXIO;
- spin_lock_irqsave(&io_request_lock, flags);
- if (hba[ctlr]->usage_count > 1) {
- spin_unlock_irqrestore(&io_request_lock, flags);
- printk(KERN_WARNING "cciss: Device busy for volume"
- " revalidation (usage=%d)n", hba[ctlr]->usage_count);
- return -EBUSY;
- }
- spin_unlock_irqrestore(&io_request_lock, flags);
- hba[ctlr]->usage_count++;
- /*
- * Set the partition and block size structures for all volumes
- * on this controller to zero. We will reread all of this data
- */
- memset(hba[ctlr]->hd, 0, sizeof(struct hd_struct) * 256);
- memset(hba[ctlr]->sizes, 0, sizeof(int) * 256);
- memset(hba[ctlr]->blocksizes, 0, sizeof(int) * 256);
- memset(hba[ctlr]->hardsizes, 0, sizeof(int) * 256);
- memset(hba[ctlr]->drv, 0, sizeof(drive_info_struct)
- * CISS_MAX_LUN);
- hba[ctlr]->gendisk.nr_real = 0;
- /*
- * Tell the array controller not to give us any interrupts while
- * we check the new geometry. Then turn interrupts back on when
- * we're done.
- */
- hba[ctlr]->access.set_intr_mask(hba[ctlr], CCISS_INTR_OFF);
- cciss_getgeometry(ctlr);
- hba[ctlr]->access.set_intr_mask(hba[ctlr], CCISS_INTR_ON);
- cciss_geninit(ctlr);
- for(i=0; i<NWD; i++)
- if (hba[ctlr]->sizes[ i<<NWD_SHIFT ])
- revalidate_logvol(dev+(i<<NWD_SHIFT), 2);
- hba[ctlr]->usage_count--;
- return 0;
- }
- /*
- * Wait polling for a command to complete.
- * The memory mapped FIFO is polled for the completion.
- * Used only at init time, interrupts disabled.
- */
- static unsigned long pollcomplete(int ctlr)
- {
- unsigned long done;
- int i;
- /* Wait (up to 2 seconds) for a command to complete */
- for (i = 200000; i > 0; i--) {
- done = hba[ctlr]->access.command_completed(hba[ctlr]);
- if (done == FIFO_EMPTY) {
- udelay(10); /* a short fixed delay */
- } else
- return (done);
- }
- /* Invalid address to tell caller we ran out of time */
- return 1;
- }
- /*
- * Send a command to the controller, and wait for it to complete.
- * Only used at init time.
- */
- static int sendcmd(
- __u8 cmd,
- int ctlr,
- void *buff,
- size_t size,
- unsigned int use_unit_num,
- unsigned int log_unit,
- __u8 page_code )
- {
- CommandList_struct *c;
- int i;
- unsigned long complete;
- ctlr_info_t *info_p= hba[ctlr];
- u64bit buff_dma_handle;
- c = cmd_alloc(info_p, 1);
- if (c == NULL)
- {
- printk(KERN_WARNING "cciss: unable to get memory");
- return(IO_ERROR);
- }
- // Fill in Command Header
- c->Header.ReplyQueue = 0; // unused in simple mode
- if( buff != NULL) // buffer to fill
- {
- c->Header.SGList = 1;
- c->Header.SGTotal= 1;
- } else // no buffers to fill
- {
- c->Header.SGList = 0;
- c->Header.SGTotal= 0;
- }
- c->Header.Tag.lower = c->busaddr; // use the kernel address the cmd block for tag
- // Fill in Request block
- switch(cmd)
- {
- case CISS_INQUIRY:
- /* If the logical unit number is 0 then, this is going
- to controller so It's a physical command
- mode = 0 target = 0.
- So we have nothing to write.
- Otherwise
- mode = 1 target = LUNID
- */
- if(use_unit_num != 0)
- {
- c->Header.LUN.LogDev.VolId=
- hba[ctlr]->drv[log_unit].LunID;
- c->Header.LUN.LogDev.Mode = 1;
- }
- /* are we trying to read a vital product page */
- if(page_code != 0)
- {
- c->Request.CDB[1] = 0x01;
- c->Request.CDB[2] = page_code;
- }
- c->Request.CDBLen = 6;
- c->Request.Type.Type = TYPE_CMD; // It is a command.
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ; // Read
- c->Request.Timeout = 0; // Don't time out
- c->Request.CDB[0] = CISS_INQUIRY;
- c->Request.CDB[4] = size & 0xFF;
- break;
- case CISS_REPORT_LOG:
- /* Talking to controller so It's a physical command
- mode = 00 target = 0.
- So we have nothing to write.
- */
- c->Request.CDBLen = 12;
- c->Request.Type.Type = TYPE_CMD; // It is a command.
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ; // Read
- c->Request.Timeout = 0; // Don't time out
- c->Request.CDB[0] = CISS_REPORT_LOG;
- c->Request.CDB[6] = (size >> 24) & 0xFF; //MSB
- c->Request.CDB[7] = (size >> 16) & 0xFF;
- c->Request.CDB[8] = (size >> 8) & 0xFF;
- c->Request.CDB[9] = size & 0xFF;
- break;
- case CCISS_READ_CAPACITY:
- c->Header.LUN.LogDev.VolId=
- hba[ctlr]->drv[log_unit].LunID;
- c->Header.LUN.LogDev.Mode = 1;
- c->Request.CDBLen = 10;
- c->Request.Type.Type = TYPE_CMD; // It is a command.
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ; // Read
- c->Request.Timeout = 0; // Don't time out
- c->Request.CDB[0] = CCISS_READ_CAPACITY;
- break;
- default:
- printk(KERN_WARNING
- "cciss: Unknown Command 0x%c sent attemptedn",
- cmd);
- cmd_free(info_p, c, 1);
- return(IO_ERROR);
- };
- // Fill in the scatter gather information
- if (size > 0 )
- {
- buff_dma_handle.val = (__u64) pci_map_single( info_p->pdev,
- buff, size, PCI_DMA_BIDIRECTIONAL);
- c->SG[0].Addr.lower = buff_dma_handle.val32.lower;
- c->SG[0].Addr.upper = buff_dma_handle.val32.upper;
- c->SG[0].Len = size;
- c->SG[0].Ext = 0; // we are not chaining
- }
- /*
- * Disable interrupt
- */
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss: turning intr offn");
- #endif /* CCISS_DEBUG */
- info_p->access.set_intr_mask(info_p, CCISS_INTR_OFF);
-
- /* Make sure there is room in the command FIFO */
- /* Actually it should be completely empty at this time. */
- for (i = 200000; i > 0; i--)
- {
- /* if fifo isn't full go */
- if (!(info_p->access.fifo_full(info_p)))
- {
-
- break;
- }
- udelay(10);
- printk(KERN_WARNING "cciss cciss%d: SendCmd FIFO full,"
- " waiting!n", ctlr);
- }
- /*
- * Send the cmd
- */
- info_p->access.submit_command(info_p, c);
- complete = pollcomplete(ctlr);
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss: command completedn");
- #endif /* CCISS_DEBUG */
- /* unlock the data buffer from DMA */
- pci_unmap_single(info_p->pdev, (dma_addr_t) buff_dma_handle.val,
- size, PCI_DMA_BIDIRECTIONAL);
- if (complete != 1) {
- if ( (complete & CISS_ERROR_BIT)
- && (complete & ~CISS_ERROR_BIT) == c->busaddr)
- {
- /* if data overrun or underun on Report command
- ignore it
- */
- if (((c->Request.CDB[0] == CISS_REPORT_LOG) ||
- (c->Request.CDB[0] == CISS_INQUIRY)) &&
- ((c->err_info->CommandStatus ==
- CMD_DATA_OVERRUN) ||
- (c->err_info->CommandStatus ==
- CMD_DATA_UNDERRUN)
- ))
- {
- complete = c->busaddr;
- } else
- {
- printk(KERN_WARNING "ciss ciss%d: sendcmd"
- " Error %x n", ctlr,
- c->err_info->CommandStatus);
- printk(KERN_WARNING "ciss ciss%d: sendcmd"
- " offensive infon"
- " size %xn num %x value %xn", ctlr,
- c->err_info->MoreErrInfo.Invalid_Cmd.offense_size,
- c->err_info->MoreErrInfo.Invalid_Cmd.offense_num,
- c->err_info->MoreErrInfo.Invalid_Cmd.offense_value);
- cmd_free(info_p,c, 1);
- return(IO_ERROR);
- }
- }
- if (complete != c->busaddr) {
- printk( KERN_WARNING "cciss cciss%d: SendCmd "
- "Invalid command list address returned! (%lx)n",
- ctlr, complete);
- cmd_free(info_p, c, 1);
- return (IO_ERROR);
- }
- } else {
- printk( KERN_WARNING
- "cciss cciss%d: SendCmd Timeout out, "
- "No command list address returned!n",
- ctlr);
- cmd_free(info_p, c, 1);
- return (IO_ERROR);
- }
- cmd_free(info_p, c, 1);
- return (IO_OK);
- }
- /*
- * Map (physical) PCI mem into (virtual) kernel space
- */
- static ulong remap_pci_mem(ulong base, ulong size)
- {
- ulong page_base = ((ulong) base) & PAGE_MASK;
- ulong page_offs = ((ulong) base) - page_base;
- ulong page_remapped = (ulong) ioremap(page_base, page_offs+size);
- return (ulong) (page_remapped ? (page_remapped + page_offs) : 0UL);
- }
- /*
- * Enqueuing and dequeuing functions for cmdlists.
- */
- static inline void addQ(CommandList_struct **Qptr, CommandList_struct *c)
- {
- if (*Qptr == NULL) {
- *Qptr = c;
- c->next = c->prev = c;
- } else {
- c->prev = (*Qptr)->prev;
- c->next = (*Qptr);
- (*Qptr)->prev->next = c;
- (*Qptr)->prev = c;
- }
- }
- static inline CommandList_struct *removeQ(CommandList_struct **Qptr,
- CommandList_struct *c)
- {
- if (c && c->next != c) {
- if (*Qptr == c) *Qptr = c->next;
- c->prev->next = c->next;
- c->next->prev = c->prev;
- } else {
- *Qptr = NULL;
- }
- return c;
- }
- /*
- * Takes jobs of the Q and sends them to the hardware, then puts it on
- * the Q to wait for completion.
- */
- static void start_io( ctlr_info_t *h)
- {
- CommandList_struct *c;
-
- while(( c = h->reqQ) != NULL )
- {
- /* can't do anything if fifo is full */
- if ((h->access.fifo_full(h)))
- {
- printk(KERN_WARNING "cciss: fifo full n");
- return;
- }
- /* Get the frist entry from the Request Q */
- removeQ(&(h->reqQ), c);
- h->Qdepth--;
-
- /* Tell the controller execute command */
- h->access.submit_command(h, c);
-
- /* Put job onto the completed Q */
- addQ (&(h->cmpQ), c);
- }
- }
- static inline void complete_buffers( struct buffer_head *bh, int status)
- {
- struct buffer_head *xbh;
-
- while(bh)
- {
- xbh = bh->b_reqnext;
- bh->b_reqnext = NULL;
- blk_finished_io(bh->b_size >> 9);
- bh->b_end_io(bh, status);
- bh = xbh;
- }
- }
- /* checks the status of the job and calls complete buffers to mark all
- * buffers for the completed job.
- */
- static inline void complete_command( CommandList_struct *cmd, int timeout)
- {
- int status = 1;
- int i;
- u64bit temp64;
-
- if (timeout)
- status = 0;
- /* unmap the DMA mapping for all the scatter gather elements */
- for(i=0; i<cmd->Header.SGList; i++)
- {
- temp64.val32.lower = cmd->SG[i].Addr.lower;
- temp64.val32.upper = cmd->SG[i].Addr.upper;
- pci_unmap_single(hba[cmd->ctlr]->pdev,
- temp64.val, cmd->SG[i].Len,
- (cmd->Request.Type.Direction == XFER_READ) ?
- PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
- }
- if(cmd->err_info->CommandStatus != 0)
- { /* an error has occurred */
- switch(cmd->err_info->CommandStatus)
- {
- case CMD_TARGET_STATUS:
- printk(KERN_WARNING "cciss: cmd %p has "
- " completed with errorsn", cmd);
- if( cmd->err_info->ScsiStatus)
- {
- printk(KERN_WARNING "cciss: cmd %p "
- "has SCSI Status = %xn",
- cmd,
- cmd->err_info->ScsiStatus);
- }
- break;
- case CMD_DATA_UNDERRUN:
- printk(KERN_WARNING "cciss: cmd %p has"
- " completed with data underrun "
- "reportedn", cmd);
- break;
- case CMD_DATA_OVERRUN:
- printk(KERN_WARNING "cciss: cmd %p has"
- " completed with data overrun "
- "reportedn", cmd);
- break;
- case CMD_INVALID:
- printk(KERN_WARNING "cciss: cmd %p is "
- "reported invalidn", cmd);
- status = 0;
- break;
- case CMD_PROTOCOL_ERR:
- printk(KERN_WARNING "cciss: cmd %p has "
- "protocol error n", cmd);
- status = 0;
- break;
- case CMD_HARDWARE_ERR:
- printk(KERN_WARNING "cciss: cmd %p had "
- " hardware errorn", cmd);
- status = 0;
- break;
- case CMD_CONNECTION_LOST:
- printk(KERN_WARNING "cciss: cmd %p had "
- "connection lostn", cmd);
- status=0;
- break;
- case CMD_ABORTED:
- printk(KERN_WARNING "cciss: cmd %p was "
- "abortedn", cmd);
- status=0;
- break;
- case CMD_ABORT_FAILED:
- printk(KERN_WARNING "cciss: cmd %p reports "
- "abort failedn", cmd);
- status=0;
- break;
- case CMD_UNSOLICITED_ABORT:
- printk(KERN_WARNING "cciss: cmd %p aborted "
- "do to an unsolicited abortn", cmd);
- status=0;
- break;
- case CMD_TIMEOUT:
- printk(KERN_WARNING "cciss: cmd %p timedoutn",
- cmd);
- status=0;
- break;
- default:
- printk(KERN_WARNING "cciss: cmd %p returned "
- "unknown status %xn", cmd,
- cmd->err_info->CommandStatus);
- status=0;
- }
- }
- complete_buffers(cmd->rq->bh, status);
- #ifdef CCISS_DEBUG
- printk("Done with %pn", cmd->rq);
- #endif /* CCISS_DEBUG */
- end_that_request_last(cmd->rq);
- }
- static inline int cpq_new_segment(request_queue_t *q, struct request *rq,
- int max_segments)
- {
- if (rq->nr_segments < MAXSGENTRIES) {
- rq->nr_segments++;
- return 1;
- }
- return 0;
- }
- static int cpq_back_merge_fn(request_queue_t *q, struct request *rq,
- struct buffer_head *bh, int max_segments)
- {
- if (rq->bhtail->b_data + rq->bhtail->b_size == bh->b_data)
- return 1;
- return cpq_new_segment(q, rq, max_segments);
- }
- static int cpq_front_merge_fn(request_queue_t *q, struct request *rq,
- struct buffer_head *bh, int max_segments)
- {
- if (bh->b_data + bh->b_size == rq->bh->b_data)
- return 1;
- return cpq_new_segment(q, rq, max_segments);
- }
- static int cpq_merge_requests_fn(request_queue_t *q, struct request *rq,
- struct request *nxt, int max_segments)
- {
- int total_segments = rq->nr_segments + nxt->nr_segments;
- if (rq->bhtail->b_data + rq->bhtail->b_size == nxt->bh->b_data)
- total_segments--;
- if (total_segments > MAXSGENTRIES)
- return 0;
- rq->nr_segments = total_segments;
- return 1;
- }
- /*
- * Get a request and submit it to the controller.
- * Currently we do one request at a time. Ideally we would like to send
- * everything to the controller on the first call, but there is a danger
- * of holding the io_request_lock for to long.
- */
- static void do_cciss_request(request_queue_t *q)
- {
- ctlr_info_t *h= q->queuedata;
- CommandList_struct *c;
- int log_unit, start_blk, seg;
- char *lastdataend;
- struct buffer_head *bh;
- struct list_head *queue_head = &q->queue_head;
- struct request *creq;
- u64bit temp64;
- struct my_sg tmp_sg[MAXSGENTRIES];
- int i;
- if (q->plugged)
- goto startio;
- queue_next:
- if (list_empty(queue_head))
- goto startio;
- creq = blkdev_entry_next_request(queue_head);
- if (creq->nr_segments > MAXSGENTRIES)
- BUG();
- if (h->ctlr != MAJOR(creq->rq_dev)-MAJOR_NR )
- {
- printk(KERN_WARNING "doreq cmd for %d, %x at %pn",
- h->ctlr, creq->rq_dev, creq);
- blkdev_dequeue_request(creq);
- complete_buffers(creq->bh, 0);
- end_that_request_last(creq);
- goto startio;
- }
- if (( c = cmd_alloc(h, 1)) == NULL)
- goto startio;
- blkdev_dequeue_request(creq);
- spin_unlock_irq(&io_request_lock);
- c->cmd_type = CMD_RWREQ;
- bh = creq->bh;
- c->rq = creq;
-
- /* fill in the request */
- log_unit = MINOR(creq->rq_dev) >> NWD_SHIFT;
- c->Header.ReplyQueue = 0; // unused in simple mode
- c->Header.Tag.lower = c->busaddr; // use the physical address the cmd block for tag
- c->Header.LUN.LogDev.VolId= hba[h->ctlr]->drv[log_unit].LunID;
- c->Header.LUN.LogDev.Mode = 1;
- c->Request.CDBLen = 10; // 12 byte commands not in FW yet;
- c->Request.Type.Type = TYPE_CMD; // It is a command.
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction =
- (creq->cmd == READ) ? XFER_READ: XFER_WRITE;
- c->Request.Timeout = 0; // Don't time out
- c->Request.CDB[0] = (creq->cmd == READ) ? CCISS_READ : CCISS_WRITE;
- start_blk = hba[h->ctlr]->hd[MINOR(creq->rq_dev)].start_sect + creq->sector;
- #ifdef CCISS_DEBUG
- if (bh == NULL)
- panic("cciss: bh== NULL?");
- printk(KERN_DEBUG "ciss: sector =%d nr_sectors=%dn",(int) creq->sector,
- (int) creq->nr_sectors);
- #endif /* CCISS_DEBUG */
- seg = 0;
- lastdataend = NULL;
- while(bh)
- {
- if (bh->b_data == lastdataend)
- { // tack it on to the last segment
- tmp_sg[seg-1].len +=bh->b_size;
- lastdataend += bh->b_size;
- } else
- {
- if (seg == MAXSGENTRIES)
- BUG();
- tmp_sg[seg].len = bh->b_size;
- tmp_sg[seg].start_addr = bh->b_data;
- lastdataend = bh->b_data + bh->b_size;
- seg++;
- }
- bh = bh->b_reqnext;
- }
- /* get the DMA records for the setup */
- for (i=0; i<seg; i++)
- {
- c->SG[i].Len = tmp_sg[i].len;
- temp64.val = (__u64) pci_map_single( h->pdev,
- tmp_sg[i].start_addr,
- tmp_sg[i].len,
- (c->Request.Type.Direction == XFER_READ) ?
- PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
- c->SG[i].Addr.lower = temp64.val32.lower;
- c->SG[i].Addr.upper = temp64.val32.upper;
- c->SG[i].Ext = 0; // we are not chaining
- }
- /* track how many SG entries we are using */
- if( seg > h->maxSG)
- h->maxSG = seg;
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "cciss: Submitting %d sectors in %d segmentsn", creq->nr_sectors, seg);
- #endif /* CCISS_DEBUG */
- c->Header.SGList = c->Header.SGTotal = seg;
- c->Request.CDB[1]= 0;
- c->Request.CDB[2]= (start_blk >> 24) & 0xff; //MSB
- c->Request.CDB[3]= (start_blk >> 16) & 0xff;
- c->Request.CDB[4]= (start_blk >> 8) & 0xff;
- c->Request.CDB[5]= start_blk & 0xff;
- c->Request.CDB[6]= 0; // (sect >> 24) & 0xff; MSB
- c->Request.CDB[7]= (creq->nr_sectors >> 8) & 0xff;
- c->Request.CDB[8]= creq->nr_sectors & 0xff;
- c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0;
- spin_lock_irq(&io_request_lock);
- addQ(&(h->reqQ),c);
- h->Qdepth++;
- if(h->Qdepth > h->maxQsinceinit)
- h->maxQsinceinit = h->Qdepth;
- goto queue_next;
- startio:
- start_io(h);
- }
- static void do_cciss_intr(int irq, void *dev_id, struct pt_regs *regs)
- {
- ctlr_info_t *h = dev_id;
- CommandList_struct *c;
- unsigned long flags;
- __u32 a, a1;
- /* Is this interrupt for us? */
- if ( h->access.intr_pending(h) == 0)
- return;
- /*
- * If there are completed commands in the completion queue,
- * we had better do something about it.
- */
- spin_lock_irqsave(&io_request_lock, flags);
- while( h->access.intr_pending(h))
- {
- while((a = h->access.command_completed(h)) != FIFO_EMPTY)
- {
- a1 = a;
- a &= ~3;
- if ((c = h->cmpQ) == NULL)
- {
- printk(KERN_WARNING "cciss: Completion of %08lx ignoredn", (unsigned long)a1);
- continue;
- }
- while(c->busaddr != a) {
- c = c->next;
- if (c == h->cmpQ)
- break;
- }
- /*
- * If we've found the command, take it off the
- * completion Q and free it
- */
- if (c->busaddr == a) {
- removeQ(&h->cmpQ, c);
- if (c->cmd_type == CMD_RWREQ) {
- complete_command(c, 0);
- cmd_free(h, c, 1);
- } else if (c->cmd_type == CMD_IOCTL_PEND) {
- c->cmd_type = CMD_IOCTL_DONE;
- }
- continue;
- }
- }
- }
- /*
- * See if we can queue up some more IO
- */
- do_cciss_request(BLK_DEFAULT_QUEUE(MAJOR_NR + h->ctlr));
- spin_unlock_irqrestore(&io_request_lock, flags);
- }
- /*
- * We cannot read the structure directly, for portablity we must use
- * the io functions.
- * This is for debug only.
- */
- #ifdef CCISS_DEBUG
- static void print_cfg_table( CfgTable_struct *tb)
- {
- int i;
- char temp_name[17];
- printk("Controller Configuration informationn");
- printk("------------------------------------n");
- for(i=0;i<4;i++)
- temp_name[i] = readb(&(tb->Signature[i]));
- temp_name[4]=' ';
- printk(" Signature = %sn", temp_name);
- printk(" Spec Number = %dn", readl(&(tb->SpecValence)));
- printk(" Transport methods supported = 0x%xn",
- readl(&(tb-> TransportSupport)));
- printk(" Transport methods active = 0x%xn",
- readl(&(tb->TransportActive)));
- printk(" Requested transport Method = 0x%xn",
- readl(&(tb->HostWrite.TransportRequest)));
- printk(" Coalese Interrupt Delay = 0x%xn",
- readl(&(tb->HostWrite.CoalIntDelay)));
- printk(" Coalese Interrupt Count = 0x%xn",
- readl(&(tb->HostWrite.CoalIntCount)));
- printk(" Max outstanding commands = 0x%dn",
- readl(&(tb->CmdsOutMax)));
- printk(" Bus Types = 0x%xn", readl(&(tb-> BusTypes)));
- for(i=0;i<16;i++)
- temp_name[i] = readb(&(tb->ServerName[i]));
- temp_name[16] = ' ';
- printk(" Server Name = %sn", temp_name);
- printk(" Heartbeat Counter = 0x%xnnn",
- readl(&(tb->HeartBeat)));
- }
- #endif /* CCISS_DEBUG */
- static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
- {
- ushort vendor_id, device_id, command;
- unchar cache_line_size, latency_timer;
- unchar irq, revision;
- uint addr[6];
- __u32 board_id;
- int cfg_offset;
- int cfg_base_addr;
- int cfg_base_addr_index;
- int i;
- vendor_id = pdev->vendor;
- device_id = pdev->device;
- irq = pdev->irq;
- for(i=0; i<6; i++)
- addr[i] = pdev->resource[i].start;
- if (pci_enable_device(pdev))
- {
- printk(KERN_ERR "cciss: Unable to Enable PCI devicen");
- return( -1);
- }
- if (pci_set_dma_mask(pdev, CCISS_DMA_MASK ) != 0)
- {
- printk(KERN_ERR "cciss: Unable to set DMA maskn");
- return(-1);
- }
-
- (void) pci_read_config_word(pdev, PCI_COMMAND,&command);
- (void) pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
- (void) pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE,
- &cache_line_size);
- (void) pci_read_config_byte(pdev, PCI_LATENCY_TIMER,
- &latency_timer);
- (void) pci_read_config_dword(pdev, PCI_SUBSYSTEM_VENDOR_ID,
- &board_id);
- #ifdef CCISS_DEBUG
- printk("vendor_id = %xn", vendor_id);
- printk("device_id = %xn", device_id);
- printk("command = %xn", command);
- for(i=0; i<6; i++)
- printk("addr[%d] = %xn", i, addr[i]);
- printk("revision = %xn", revision);
- printk("irq = %xn", irq);
- printk("cache_line_size = %xn", cache_line_size);
- printk("latency_timer = %xn", latency_timer);
- printk("board_id = %xn", board_id);
- #endif /* CCISS_DEBUG */
- c->intr = irq;
- /*
- * Memory base addr is first addr , the second points to the config
- * table
- */
- c->paddr = addr[0] & 0xfffffff0; /* remove the addressing mode bits */
- #ifdef CCISS_DEBUG
- printk("address 0 = %xn", c->paddr);
- #endif /* CCISS_DEBUG */
- c->vaddr = remap_pci_mem(c->paddr, 200);
- /* get the address index number */
- cfg_base_addr = readl(c->vaddr + SA5_CTCFG_OFFSET);
- /* I am not prepared to deal with a 64 bit address value */
- cfg_base_addr &= 0xffff;
- #ifdef CCISS_DEBUG
- printk("cfg base address = %xn", cfg_base_addr);
- #endif /* CCISS_DEBUG */
- cfg_base_addr_index = (cfg_base_addr - PCI_BASE_ADDRESS_0)/4;
- #ifdef CCISS_DEBUG
- printk("cfg base address index = %xn", cfg_base_addr_index);
- #endif /* CCISS_DEBUG */
- cfg_offset = readl(c->vaddr + SA5_CTMEM_OFFSET);
- #ifdef CCISS_DEBUG
- printk("cfg offset = %xn", cfg_offset);
- #endif /* CCISS_DEBUG */
- c->cfgtable = (CfgTable_struct *)
- remap_pci_mem((addr[cfg_base_addr_index] & 0xfffffff0)
- + cfg_offset, sizeof(CfgTable_struct));
- c->board_id = board_id;
- #ifdef CCISS_DEBUG
- print_cfg_table(c->cfgtable);
- #endif /* CCISS_DEBUG */
- for(i=0; i<NR_PRODUCTS; i++) {
- if (board_id == products[i].board_id) {
- c->product_name = products[i].product_name;
- c->access = *(products[i].access);
- break;
- }
- }
- if (i == NR_PRODUCTS) {
- printk(KERN_WARNING "cciss: Sorry, I don't know how"
- " to access the Smart Array controller %08lxn",
- (unsigned long)board_id);
- return -1;
- }
- if ( (readb(&c->cfgtable->Signature[0]) != 'C') ||
- (readb(&c->cfgtable->Signature[1]) != 'I') ||
- (readb(&c->cfgtable->Signature[2]) != 'S') ||
- (readb(&c->cfgtable->Signature[3]) != 'S') )
- {
- printk("Does not appear to be a valid CISS config tablen");
- return -1;
- }
- #ifdef CCISS_DEBUG
- printk("Trying to put board into Simple moden");
- #endif /* CCISS_DEBUG */
- c->max_commands = readl(&(c->cfgtable->CmdsOutMax));
- /* Update the field, and then ring the doorbell */
- writel( CFGTBL_Trans_Simple,
- &(c->cfgtable->HostWrite.TransportRequest));
- writel( CFGTBL_ChangeReq, c->vaddr + SA5_DOORBELL);
- for(i=0;i<MAX_CONFIG_WAIT;i++)
- {
- if (!(readl(c->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
- break;
- /* delay and try again */
- udelay(1000);
- }
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "I counter got to %d %xn", i, readl(c->vaddr + SA5_DOORBELL));
- #endif /* CCISS_DEBUG */
- #ifdef CCISS_DEBUG
- print_cfg_table(c->cfgtable);
- #endif /* CCISS_DEBUG */
- if (!(readl(&(c->cfgtable->TransportActive)) & CFGTBL_Trans_Simple))
- {
- printk(KERN_WARNING "cciss: unable to get board into"
- " simple moden");
- return -1;
- }
- return 0;
- }
- /*
- * Gets information about the local volumes attached to the controller.
- */
- static void cciss_getgeometry(int cntl_num)
- {
- ReportLunData_struct *ld_buff;
- ReadCapdata_struct *size_buff;
- InquiryData_struct *inq_buff;
- int return_code;
- int i;
- int listlength = 0;
- int lunid = 0;
- int block_size;
- int total_size;
- ld_buff = kmalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
- if (ld_buff == NULL)
- {
- printk(KERN_ERR "cciss: out of memoryn");
- return;
- }
- memset(ld_buff, 0, sizeof(ReportLunData_struct));
- size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
- if (size_buff == NULL)
- {
- printk(KERN_ERR "cciss: out of memoryn");
- kfree(ld_buff);
- return;
- }
- inq_buff = kmalloc(sizeof( InquiryData_struct), GFP_KERNEL);
- if (inq_buff == NULL)
- {
- printk(KERN_ERR "cciss: out of memoryn");
- kfree(ld_buff);
- kfree(size_buff);
- return;
- }
- /* Get the firmware version */
- return_code = sendcmd(CISS_INQUIRY, cntl_num, inq_buff,
- sizeof(InquiryData_struct), 0, 0 ,0 );
- if (return_code == IO_OK)
- {
- hba[cntl_num]->firm_ver[0] = inq_buff->data_byte[32];
- hba[cntl_num]->firm_ver[1] = inq_buff->data_byte[33];
- hba[cntl_num]->firm_ver[2] = inq_buff->data_byte[34];
- hba[cntl_num]->firm_ver[3] = inq_buff->data_byte[35];
- } else /* send command failed */
- {
- printk(KERN_WARNING "cciss: unable to determine firmware"
- " version of controllern");
- }
- /* Get the number of logical volumes */
- return_code = sendcmd(CISS_REPORT_LOG, cntl_num, ld_buff,
- sizeof(ReportLunData_struct), 0, 0, 0 );
- if( return_code == IO_OK)
- {
- #ifdef CCISS_DEBUG
- printk("LUN Datan--------------------------n");
- #endif /* CCISS_DEBUG */
- listlength |= (0xff & (unsigned int)(ld_buff->LUNListLength[0])) << 24;
- listlength |= (0xff & (unsigned int)(ld_buff->LUNListLength[1])) << 16;
- listlength |= (0xff & (unsigned int)(ld_buff->LUNListLength[2])) << 8;
- listlength |= 0xff & (unsigned int)(ld_buff->LUNListLength[3]);
- } else /* reading number of logical volumes failed */
- {
- printk(KERN_WARNING "cciss: report logical volume"
- " command failedn");
- listlength = 0;
- }
- hba[cntl_num]->num_luns = listlength / 8; // 8 bytes pre entry
- if (hba[cntl_num]->num_luns > CISS_MAX_LUN)
- {
- printk(KERN_ERR "ciss: only %d number of logical volumes supportedn",
- CISS_MAX_LUN);
- hba[cntl_num]->num_luns = CISS_MAX_LUN;
- }
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "Length = %x %x %x %x = %dn", ld_buff->LUNListLength[0],
- ld_buff->LUNListLength[1], ld_buff->LUNListLength[2],
- ld_buff->LUNListLength[3], hba[cntl_num]->num_luns);
- #endif /* CCISS_DEBUG */
- for(i=0; i< hba[cntl_num]->num_luns ; i++)
- {
- lunid = (0xff & (unsigned int)(ld_buff->LUN[i][3])) << 24;
- lunid |= (0xff & (unsigned int)(ld_buff->LUN[i][2])) << 16;
- lunid |= (0xff & (unsigned int)(ld_buff->LUN[i][1])) << 8;
- lunid |= 0xff & (unsigned int)(ld_buff->LUN[i][0]);
- hba[cntl_num]->drv[i].LunID = lunid;
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "LUN[%d]: %x %x %x %x = %xn", i,
- ld_buff->LUN[i][0], ld_buff->LUN[i][1],ld_buff->LUN[i][2],
- ld_buff->LUN[i][3], hba[cntl_num]->drv[i].LunID);
- #endif /* CCISS_DEBUG */
- memset(size_buff, 0, sizeof(ReadCapdata_struct));
- return_code = sendcmd(CCISS_READ_CAPACITY, cntl_num, size_buff,
- sizeof( ReadCapdata_struct), 1, i, 0 );
- if (return_code == IO_OK)
- {
- total_size = (0xff &
- (unsigned int)(size_buff->total_size[0])) << 24;
- total_size |= (0xff &
- (unsigned int)(size_buff->total_size[1])) << 16;
- total_size |= (0xff &
- (unsigned int)(size_buff->total_size[2])) << 8;
- total_size |= (0xff & (unsigned int)
- (size_buff->total_size[3]));
- total_size++; // command returns highest block address
- block_size = (0xff &
- (unsigned int)(size_buff->block_size[0])) << 24;
- block_size |= (0xff &
- (unsigned int)(size_buff->block_size[1])) << 16;
- block_size |= (0xff &
- (unsigned int)(size_buff->block_size[2])) << 8;
- block_size |= (0xff &
- (unsigned int)(size_buff->block_size[3]));
- } else /* read capacity command failed */
- {
- printk(KERN_WARNING "cciss: read capacity failedn");
- total_size = block_size = 0;
- }
- printk(KERN_INFO " blocks= %d block_size= %dn",
- total_size, block_size);
- /* Execute the command to read the disk geometry */
- memset(inq_buff, 0, sizeof(InquiryData_struct));
- return_code = sendcmd(CISS_INQUIRY, cntl_num, inq_buff,
- sizeof(InquiryData_struct), 1, i ,0xC1 );
- if (return_code == IO_OK)
- {
- if(inq_buff->data_byte[8] == 0xFF)
- {
- printk(KERN_WARNING "cciss: reading geometry failed, volume does not support reading geometryn");
- hba[cntl_num]->drv[i].block_size = block_size;
- hba[cntl_num]->drv[i].nr_blocks = total_size;
- hba[cntl_num]->drv[i].heads = 255;
- hba[cntl_num]->drv[i].sectors = 32; // Sectors per track
- hba[cntl_num]->drv[i].cylinders = total_size / 255 / 32; } else
- {
- hba[cntl_num]->drv[i].block_size = block_size;
- hba[cntl_num]->drv[i].nr_blocks = total_size;
- hba[cntl_num]->drv[i].heads =
- inq_buff->data_byte[6];
- hba[cntl_num]->drv[i].sectors =
- inq_buff->data_byte[7];
- hba[cntl_num]->drv[i].cylinders =
- (inq_buff->data_byte[4] & 0xff) << 8;
- hba[cntl_num]->drv[i].cylinders +=
- inq_buff->data_byte[5];
- }
- }
- else /* Get geometry failed */
- {
- printk(KERN_WARNING "cciss: reading geometry failed, continuing with default geometryn");
- hba[cntl_num]->drv[i].block_size = block_size;
- hba[cntl_num]->drv[i].nr_blocks = total_size;
- hba[cntl_num]->drv[i].heads = 255;
- hba[cntl_num]->drv[i].sectors = 32; // Sectors per track
- hba[cntl_num]->drv[i].cylinders = total_size / 255 / 32;
- }
- printk(KERN_INFO " heads= %d, sectors= %d, cylinders= %dnn",
- hba[cntl_num]->drv[i].heads,
- hba[cntl_num]->drv[i].sectors,
- hba[cntl_num]->drv[i].cylinders);
- }
- kfree(ld_buff);
- kfree(size_buff);
- }
- /* Function to find the first free pointer into our hba[] array */
- /* Returns -1 if no free entries are left. */
- static int alloc_cciss_hba(void)
- {
- int i;
- for(i=0; i< MAX_CTLR; i++)
- {
- if (hba[i] == NULL)
- {
- hba[i] = kmalloc(sizeof(ctlr_info_t), GFP_KERNEL);
- if(hba[i]==NULL)
- {
- printk(KERN_ERR "cciss: out of memory.n");
- return (-1);
- }
- return (i);
- }
- }
- printk(KERN_WARNING "cciss: This driver supports a maximum"
- " of 8 controllers.n");
- return(-1);
- }
- static void free_hba(int i)
- {
- kfree(hba[i]);
- hba[i]=NULL;
- }
- /*
- * This is it. Find all the controllers and register them. I really hate
- * stealing all these major device numbers.
- * returns the number of block devices registered.
- */
- static int __init cciss_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
- {
- request_queue_t *q;
- int i;
- int j;
- printk(KERN_DEBUG "cciss: Device 0x%x has been found at"
- " bus %d dev %d func %dn",
- pdev->device, pdev->bus->number, PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn));
- i = alloc_cciss_hba();
- if( i < 0 )
- return (-1);
- memset(hba[i], 0, sizeof(ctlr_info_t));
- if (cciss_pci_init(hba[i], pdev) != 0)
- {
- free_hba(i);
- return (-1);
- }
- sprintf(hba[i]->devname, "cciss%d", i);
- hba[i]->ctlr = i;
- hba[i]->pdev = pdev;
-
- if( register_blkdev(MAJOR_NR+i, hba[i]->devname, &cciss_fops))
- {
- printk(KERN_ERR "cciss: Unable to get major number "
- "%d for %sn", MAJOR_NR+i, hba[i]->devname);
- free_hba(i);
- return(-1);
- }
- /* make sure the board interrupts are off */
- hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_OFF);
- if( request_irq(hba[i]->intr, do_cciss_intr,
- SA_INTERRUPT|SA_SHIRQ, hba[i]->devname, hba[i]))
- {
- printk(KERN_ERR "ciss: Unable to get irq %d for %sn",
- hba[i]->intr, hba[i]->devname);
- unregister_blkdev( MAJOR_NR+i, hba[i]->devname);
- free_hba(i);
- return(-1);
- }
- hba[i]->cmd_pool_bits = (__u32*)kmalloc(
- ((NR_CMDS+31)/32)*sizeof(__u32), GFP_KERNEL);
- hba[i]->cmd_pool = (CommandList_struct *)pci_alloc_consistent(
- hba[i]->pdev, NR_CMDS * sizeof(CommandList_struct),
- &(hba[i]->cmd_pool_dhandle));
- hba[i]->errinfo_pool = (ErrorInfo_struct *)pci_alloc_consistent(
- hba[i]->pdev, NR_CMDS * sizeof( ErrorInfo_struct),
- &(hba[i]->errinfo_pool_dhandle));
- if((hba[i]->cmd_pool_bits == NULL)
- || (hba[i]->cmd_pool == NULL)
- || (hba[i]->errinfo_pool == NULL))
- {
- if(hba[i]->cmd_pool_bits)
- kfree(hba[i]->cmd_pool_bits);
- if(hba[i]->cmd_pool)
- pci_free_consistent(hba[i]->pdev,
- NR_CMDS * sizeof(CommandList_struct),
- hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
- if(hba[i]->errinfo_pool)
- pci_free_consistent(hba[i]->pdev,
- NR_CMDS * sizeof( ErrorInfo_struct),
- hba[i]->errinfo_pool,
- hba[i]->errinfo_pool_dhandle);
- free_irq(hba[i]->intr, hba[i]);
- unregister_blkdev(MAJOR_NR+i, hba[i]->devname);
- free_hba(i);
- printk( KERN_ERR "cciss: out of memory");
- return(-1);
- }
- /* Initialize the pdev driver private data.
- have it point to hba[i]. */
- pci_set_drvdata(pdev, hba[i]);
- /* command and error info recs zeroed out before
- they are used */
- memset(hba[i]->cmd_pool_bits, 0, ((NR_CMDS+31)/32)*sizeof(__u32));
- #ifdef CCISS_DEBUG
- printk(KERN_DEBUG "Scanning for drives on controller cciss%dn",i);
- #endif /* CCISS_DEBUG */
- cciss_getgeometry(i);
- /* Turn the interrupts on so we can service requests */
- hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON);
- cciss_procinit(i);
- q = BLK_DEFAULT_QUEUE(MAJOR_NR + i);
- q->queuedata = hba[i];
- blk_init_queue(q, do_cciss_request);
- blk_queue_headactive(q, 0);
- /* fill in the other Kernel structs */
- blksize_size[MAJOR_NR+i] = hba[i]->blocksizes;
- hardsect_size[MAJOR_NR+i] = hba[i]->hardsizes;
- read_ahead[MAJOR_NR+i] = READ_AHEAD;
- /* Set the pointers to queue functions */
- q->back_merge_fn = cpq_back_merge_fn;
- q->front_merge_fn = cpq_front_merge_fn;
- q->merge_requests_fn = cpq_merge_requests_fn;
- /* Fill in the gendisk data */
- hba[i]->gendisk.major = MAJOR_NR + i;
- hba[i]->gendisk.major_name = "cciss";
- hba[i]->gendisk.minor_shift = NWD_SHIFT;
- hba[i]->gendisk.max_p = MAX_PART;
- hba[i]->gendisk.part = hba[i]->hd;
- hba[i]->gendisk.sizes = hba[i]->sizes;
- hba[i]->gendisk.nr_real = hba[i]->num_luns;
- /* Get on the disk list */
- add_gendisk(&(hba[i]->gendisk));
- cciss_geninit(i);
- for(j=0; j<NWD; j++)
- register_disk(&(hba[i]->gendisk),
- MKDEV(MAJOR_NR+i, j <<4),
- MAX_PART, &cciss_fops,
- hba[i]->drv[j].nr_blocks);
- return(1);
- }
- static void __devexit cciss_remove_one (struct pci_dev *pdev)
- {
- ctlr_info_t *tmp_ptr;
- int i;
- if (pci_get_drvdata(pdev) == NULL)
- {
- printk( KERN_ERR "cciss: Unable to remove device n");
- return;
- }
- tmp_ptr = pci_get_drvdata(pdev);
- i = tmp_ptr->ctlr;
- if (hba[i] == NULL)
- {
- printk(KERN_ERR "cciss: device appears to "
- "already be removed n");
- return;
- }
- /* Turn board interrupts off */
- hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_OFF);
- free_irq(hba[i]->intr, hba[i]);
- pci_set_drvdata(pdev, NULL);
- iounmap((void*)hba[i]->vaddr);
- unregister_blkdev(MAJOR_NR+i, hba[i]->devname);
- remove_proc_entry(hba[i]->devname, proc_cciss);
-
- /* remove it from the disk list */
- del_gendisk(&(hba[i]->gendisk));
- pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof(CommandList_struct),
- hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
- pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof( ErrorInfo_struct),
- hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle);
- kfree(hba[i]->cmd_pool_bits);
- free_hba(i);
- }
- static struct pci_driver cciss_pci_driver = {
- name: "cciss",
- probe: cciss_init_one,
- remove: __devexit_p(cciss_remove_one),
- id_table: cciss_pci_device_id, /* id_table */
- };
- /*
- * This is it. Register the PCI driver information for the cards we control
- * the OS will call our registered routines when it finds one of our cards.
- */
- int __init cciss_init(void)
- {
- printk(KERN_INFO DRIVER_NAME "n");
- /* Register for out PCI devices */
- if (pci_register_driver(&cciss_pci_driver) > 0 )
- return 0;
- else
- return -ENODEV;
- }
- EXPORT_NO_SYMBOLS;
- static int __init init_cciss_module(void)
- {
- return ( cciss_init());
- }
- static void __exit cleanup_cciss_module(void)
- {
- int i;
- pci_unregister_driver(&cciss_pci_driver);
- /* double check that all controller entrys have been removed */
- for (i=0; i< MAX_CTLR; i++)
- {
- if (hba[i] != NULL)
- {
- printk(KERN_WARNING "cciss: had to remove"
- " controller %dn", i);
- cciss_remove_one(hba[i]->pdev);
- }
- }
- remove_proc_entry("cciss", proc_root_driver);
- }
- module_init(init_cciss_module);
- module_exit(cleanup_cciss_module);