Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
new file mode 100644
index 0000000..8f7c1a1
--- /dev/null
+++ b/drivers/block/cciss.c
@@ -0,0 +1,2976 @@
+/*
+ * Disk Array driver for HP SA 5xxx and 6xxx Controllers
+ * Copyright 2000, 2002 Hewlett-Packard Development Company, L.P.
+ *
+ * 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 iss_storagedev@hp.com
+ *
+ */
+
+#include <linux/config.h> /* CONFIG_PROC_FS */
+#include <linux/module.h>
+#include <linux/interrupt.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/bio.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 <linux/compat.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/blkdev.h>
+#include <linux/genhd.h>
+#include <linux/completion.h>
+
+#define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin))
+#define DRIVER_NAME "HP CISS Driver (v 2.6.6)"
+#define DRIVER_VERSION CCISS_DRIVER_VERSION(2,6,6)
+
+/* Embedded module documentation macros - see modules.h */
+MODULE_AUTHOR("Hewlett-Packard Company");
+MODULE_DESCRIPTION("Driver for HP Controller SA5xxx SA6xxx version 2.6.6");
+MODULE_SUPPORTED_DEVICE("HP SA5i SA5i+ SA532 SA5300 SA5312 SA641 SA642 SA6400"
+ " SA6i P600 P800 E400");
+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 */
+static 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},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB,
+ 0x0E11, 0x4083, 0, 0, 0},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC,
+ 0x0E11, 0x409A, 0, 0, 0},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC,
+ 0x0E11, 0x409B, 0, 0, 0},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC,
+ 0x0E11, 0x409C, 0, 0, 0},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC,
+ 0x0E11, 0x409D, 0, 0, 0},
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC,
+ 0x0E11, 0x4091, 0, 0, 0},
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSA,
+ 0x103C, 0x3225, 0, 0, 0},
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSB,
+ 0x103c, 0x3223, 0, 0, 0},
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSB,
+ 0x103c, 0x3231, 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},
+ { 0x40830E11, "Smart Array 5312", &SA5B_access},
+ { 0x409A0E11, "Smart Array 641", &SA5_access},
+ { 0x409B0E11, "Smart Array 642", &SA5_access},
+ { 0x409C0E11, "Smart Array 6400", &SA5_access},
+ { 0x409D0E11, "Smart Array 6400 EM", &SA5_access},
+ { 0x40910E11, "Smart Array 6i", &SA5_access},
+ { 0x3225103C, "Smart Array P600", &SA5_access},
+ { 0x3223103C, "Smart Array P800", &SA5_access},
+ { 0x3231103C, "Smart Array E400", &SA5_access},
+};
+
+/* How long to wait (in millesconds) for board to go into simple mode */
+#define MAX_CONFIG_WAIT 30000
+#define MAX_IOCTL_CONFIG_WAIT 1000
+
+/*define how many times we will try a command because of bus resets */
+#define MAX_CMD_RETRIES 3
+
+#define READ_AHEAD 1024
+#define NR_CMDS 384 /* #commands that can be outstanding */
+#define MAX_CTLR 32
+
+/* Originally cciss driver only supports 8 major numbers */
+#define MAX_CTLR_ORIG 8
+
+
+#define CCISS_DMA_MASK 0xFFFFFFFF /* 32 bit DMA */
+
+static ctlr_info_t *hba[MAX_CTLR];
+
+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(ctlr_info_t *host);
+static int cciss_revalidate(struct gendisk *disk);
+static int deregister_disk(struct gendisk *disk);
+static int register_new_disk(ctlr_info_t *h);
+
+static void cciss_getgeometry(int cntl_num);
+
+static void start_io( ctlr_info_t *h);
+static int sendcmd( __u8 cmd, int ctlr, void *buff, size_t size,
+ unsigned int use_unit_num, unsigned int log_unit, __u8 page_code,
+ unsigned char *scsi3addr, int cmd_type);
+
+#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 void cciss_procinit(int i) {}
+#endif /* CONFIG_PROC_FS */
+
+#ifdef CONFIG_COMPAT
+static long cciss_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg);
+#endif
+
+static struct block_device_operations cciss_fops = {
+ .owner = THIS_MODULE,
+ .open = cciss_open,
+ .release = cciss_release,
+ .ioctl = cciss_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = cciss_compat_ioctl,
+#endif
+ .revalidate_disk= cciss_revalidate,
+};
+
+/*
+ * 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;
+}
+
+#include "cciss_scsi.c" /* For SCSI tape support */
+
+#ifdef CONFIG_PROC_FS
+
+/*
+ * Report information about this controller.
+ */
+#define ENG_GIG 1000000000
+#define ENG_GIG_FACTOR (ENG_GIG/512)
+#define RAID_UNKNOWN 6
+static const char *raid_label[] = {"0","4","1(1+0)","5","5+1","ADG",
+ "UNKNOWN"};
+
+static struct proc_dir_entry *proc_cciss;
+
+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;
+ unsigned long flags;
+ sector_t vol_sz, vol_sz_frac;
+
+ ctlr = h->ctlr;
+
+ /* prevent displaying bogus info during configuration
+ * or deconfiguration of a logical volume
+ */
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ if (h->busy_configuring) {
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ return -EBUSY;
+ }
+ h->busy_configuring = 1;
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+
+ size = sprintf(buffer, "%s: HP %s Controller\n"
+ "Board ID: 0x%08lx\n"
+ "Firmware Version: %c%c%c%c\n"
+ "IRQ: %d\n"
+ "Logical drives: %d\n"
+ "Current Q depth: %d\n"
+ "Current # commands on controller: %d\n"
+ "Max Q depth since init: %d\n"
+ "Max # commands on controller since init: %d\n"
+ "Max SG entries since init: %d\n\n",
+ 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 int)h->intr,
+ h->num_luns,
+ h->Qdepth, h->commands_outstanding,
+ h->maxQsinceinit, h->max_outstanding, h->maxSG);
+
+ pos += size; len += size;
+ cciss_proc_tape_report(ctlr, buffer, &pos, &len);
+ for(i=0; i<=h->highest_lun; i++) {
+
+ drv = &h->drv[i];
+ if (drv->block_size == 0)
+ continue;
+
+ vol_sz = drv->nr_blocks;
+ vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR);
+ vol_sz_frac *= 100;
+ sector_div(vol_sz_frac, ENG_GIG_FACTOR);
+
+ if (drv->raid_level > 5)
+ drv->raid_level = RAID_UNKNOWN;
+ size = sprintf(buffer+len, "cciss/c%dd%d:"
+ "\t%4u.%02uGB\tRAID %s\n",
+ ctlr, i, (int)vol_sz, (int)vol_sz_frac,
+ raid_label[drv->raid_level]);
+ pos += size; len += size;
+ }
+
+ *eof = 1;
+ *start = buffer+offset;
+ len -= offset;
+ if (len>length)
+ len = length;
+ h->busy_configuring = 0;
+ return len;
+}
+
+static int
+cciss_proc_write(struct file *file, const char __user *buffer,
+ unsigned long count, void *data)
+{
+ unsigned char cmd[80];
+ int len;
+#ifdef CONFIG_CISS_SCSI_TAPE
+ ctlr_info_t *h = (ctlr_info_t *) data;
+ int rc;
+#endif
+
+ if (count > sizeof(cmd)-1) return -EINVAL;
+ if (copy_from_user(cmd, buffer, count)) return -EFAULT;
+ cmd[count] = '\0';
+ len = strlen(cmd); // above 3 lines ensure safety
+ if (len && cmd[len-1] == '\n')
+ cmd[--len] = '\0';
+# ifdef CONFIG_CISS_SCSI_TAPE
+ if (strcmp("engage scsi", cmd)==0) {
+ rc = cciss_engage_scsi(h->ctlr);
+ if (rc != 0) return -rc;
+ return count;
+ }
+ /* might be nice to have "disengage" too, but it's not
+ safely possible. (only 1 module use count, lock issues.) */
+# endif
+ return -EINVAL;
+}
+
+/*
+ * Get us a file in /proc/cciss that says something about each controller.
+ * Create /proc/cciss if it doesn't exist yet.
+ */
+static void __devinit cciss_procinit(int i)
+{
+ struct proc_dir_entry *pde;
+
+ if (proc_cciss == NULL) {
+ proc_cciss = proc_mkdir("cciss", proc_root_driver);
+ if (!proc_cciss)
+ return;
+ }
+
+ pde = create_proc_read_entry(hba[i]->devname,
+ S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH,
+ proc_cciss, cciss_proc_get_info, hba[i]);
+ pde->write_proc = cciss_proc_write;
+}
+#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 & (BITS_PER_LONG - 1), h->cmd_pool_bits+(i/BITS_PER_LONG)) != 0);
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "cciss: using command buffer %d\n", 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&(BITS_PER_LONG-1), h->cmd_pool_bits+(i/BITS_PER_LONG));
+ h->nr_frees++;
+ }
+}
+
+static inline ctlr_info_t *get_host(struct gendisk *disk)
+{
+ return disk->queue->queuedata;
+}
+
+static inline drive_info_struct *get_drv(struct gendisk *disk)
+{
+ return disk->private_data;
+}
+
+/*
+ * Open. Make sure the device is really there.
+ */
+static int cciss_open(struct inode *inode, struct file *filep)
+{
+ ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+ drive_info_struct *drv = get_drv(inode->i_bdev->bd_disk);
+
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "cciss_open %s\n", inode->i_bdev->bd_disk->disk_name);
+#endif /* CCISS_DEBUG */
+
+ /*
+ * Root is allowed to open raw volume zero even if it's not configured
+ * so array config can still work. Root is also allowed to open any
+ * volume that has a LUN ID, so it can issue IOCTL to reread the
+ * disk information. 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 (drv->nr_blocks == 0) {
+ if (iminor(inode) != 0) { /* not node 0? */
+ /* if not node 0 make sure it is a partition = 0 */
+ if (iminor(inode) & 0x0f) {
+ return -ENXIO;
+ /* if it is, make sure we have a LUN ID */
+ } else if (drv->LunID == 0) {
+ return -ENXIO;
+ }
+ }
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ }
+ drv->usage_count++;
+ host->usage_count++;
+ return 0;
+}
+/*
+ * Close. Sync first.
+ */
+static int cciss_release(struct inode *inode, struct file *filep)
+{
+ ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+ drive_info_struct *drv = get_drv(inode->i_bdev->bd_disk);
+
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "cciss_release %s\n", inode->i_bdev->bd_disk->disk_name);
+#endif /* CCISS_DEBUG */
+
+ drv->usage_count--;
+ host->usage_count--;
+ return 0;
+}
+
+#ifdef CONFIG_COMPAT
+
+static int do_ioctl(struct file *f, unsigned cmd, unsigned long arg)
+{
+ int ret;
+ lock_kernel();
+ ret = cciss_ioctl(f->f_dentry->d_inode, f, cmd, arg);
+ unlock_kernel();
+ return ret;
+}
+
+static int cciss_ioctl32_passthru(struct file *f, unsigned cmd, unsigned long arg);
+static int cciss_ioctl32_big_passthru(struct file *f, unsigned cmd, unsigned long arg);
+
+static long cciss_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case CCISS_GETPCIINFO:
+ case CCISS_GETINTINFO:
+ case CCISS_SETINTINFO:
+ case CCISS_GETNODENAME:
+ case CCISS_SETNODENAME:
+ case CCISS_GETHEARTBEAT:
+ case CCISS_GETBUSTYPES:
+ case CCISS_GETFIRMVER:
+ case CCISS_GETDRIVVER:
+ case CCISS_REVALIDVOLS:
+ case CCISS_DEREGDISK:
+ case CCISS_REGNEWDISK:
+ case CCISS_REGNEWD:
+ case CCISS_RESCANDISK:
+ case CCISS_GETLUNINFO:
+ return do_ioctl(f, cmd, arg);
+
+ case CCISS_PASSTHRU32:
+ return cciss_ioctl32_passthru(f, cmd, arg);
+ case CCISS_BIG_PASSTHRU32:
+ return cciss_ioctl32_big_passthru(f, cmd, arg);
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+static int cciss_ioctl32_passthru(struct file *f, unsigned cmd, unsigned long arg)
+{
+ IOCTL32_Command_struct __user *arg32 =
+ (IOCTL32_Command_struct __user *) arg;
+ IOCTL_Command_struct arg64;
+ IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
+ int err;
+ u32 cp;
+
+ err = 0;
+ err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, sizeof(arg64.LUN_info));
+ err |= copy_from_user(&arg64.Request, &arg32->Request, sizeof(arg64.Request));
+ err |= copy_from_user(&arg64.error_info, &arg32->error_info, sizeof(arg64.error_info));
+ err |= get_user(arg64.buf_size, &arg32->buf_size);
+ err |= get_user(cp, &arg32->buf);
+ arg64.buf = compat_ptr(cp);
+ err |= copy_to_user(p, &arg64, sizeof(arg64));
+
+ if (err)
+ return -EFAULT;
+
+ err = do_ioctl(f, CCISS_PASSTHRU, (unsigned long) p);
+ if (err)
+ return err;
+ err |= copy_in_user(&arg32->error_info, &p->error_info, sizeof(arg32->error_info));
+ if (err)
+ return -EFAULT;
+ return err;
+}
+
+static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd, unsigned long arg)
+{
+ BIG_IOCTL32_Command_struct __user *arg32 =
+ (BIG_IOCTL32_Command_struct __user *) arg;
+ BIG_IOCTL_Command_struct arg64;
+ BIG_IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
+ int err;
+ u32 cp;
+
+ err = 0;
+ err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, sizeof(arg64.LUN_info));
+ err |= copy_from_user(&arg64.Request, &arg32->Request, sizeof(arg64.Request));
+ err |= copy_from_user(&arg64.error_info, &arg32->error_info, sizeof(arg64.error_info));
+ err |= get_user(arg64.buf_size, &arg32->buf_size);
+ err |= get_user(arg64.malloc_size, &arg32->malloc_size);
+ err |= get_user(cp, &arg32->buf);
+ arg64.buf = compat_ptr(cp);
+ err |= copy_to_user(p, &arg64, sizeof(arg64));
+
+ if (err)
+ return -EFAULT;
+
+ err = do_ioctl(file, CCISS_BIG_PASSTHRU, (unsigned long) p);
+ if (err)
+ return err;
+ err |= copy_in_user(&arg32->error_info, &p->error_info, sizeof(arg32->error_info));
+ if (err)
+ return -EFAULT;
+ return err;
+}
+#endif
+/*
+ * ioctl
+ */
+static int cciss_ioctl(struct inode *inode, struct file *filep,
+ unsigned int cmd, unsigned long arg)
+{
+ struct block_device *bdev = inode->i_bdev;
+ struct gendisk *disk = bdev->bd_disk;
+ ctlr_info_t *host = get_host(disk);
+ drive_info_struct *drv = get_drv(disk);
+ int ctlr = host->ctlr;
+ void __user *argp = (void __user *)arg;
+
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "cciss_ioctl: Called with cmd=%x %lx\n", cmd, arg);
+#endif /* CCISS_DEBUG */
+
+ switch(cmd) {
+ case HDIO_GETGEO:
+ {
+ struct hd_geometry driver_geo;
+ if (drv->cylinders) {
+ driver_geo.heads = drv->heads;
+ driver_geo.sectors = drv->sectors;
+ driver_geo.cylinders = drv->cylinders;
+ } else
+ return -ENXIO;
+ driver_geo.start= get_start_sect(inode->i_bdev);
+ if (copy_to_user(argp, &driver_geo, sizeof(struct hd_geometry)))
+ return -EFAULT;
+ return(0);
+ }
+
+ case CCISS_GETPCIINFO:
+ {
+ cciss_pci_info_struct pciinfo;
+
+ if (!arg) return -EINVAL;
+ pciinfo.bus = host->pdev->bus->number;
+ pciinfo.dev_fn = host->pdev->devfn;
+ pciinfo.board_id = host->board_id;
+ if (copy_to_user(argp, &pciinfo, sizeof( cciss_pci_info_struct )))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_GETINTINFO:
+ {
+ cciss_coalint_struct intinfo;
+ if (!arg) return -EINVAL;
+ intinfo.delay = readl(&host->cfgtable->HostWrite.CoalIntDelay);
+ intinfo.count = readl(&host->cfgtable->HostWrite.CoalIntCount);
+ if (copy_to_user(argp, &intinfo, sizeof( cciss_coalint_struct )))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_SETINTINFO:
+ {
+ cciss_coalint_struct intinfo;
+ unsigned long flags;
+ int i;
+
+ if (!arg) return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN)) return -EPERM;
+ if (copy_from_user(&intinfo, argp, sizeof( cciss_coalint_struct)))
+ return -EFAULT;
+ if ( (intinfo.delay == 0 ) && (intinfo.count == 0))
+
+ {
+// printk("cciss_ioctl: delay and count cannot be 0\n");
+ return( -EINVAL);
+ }
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ /* Update the field, and then ring the doorbell */
+ writel( intinfo.delay,
+ &(host->cfgtable->HostWrite.CoalIntDelay));
+ writel( intinfo.count,
+ &(host->cfgtable->HostWrite.CoalIntCount));
+ writel( CFGTBL_ChangeReq, host->vaddr + SA5_DOORBELL);
+
+ for(i=0;i<MAX_IOCTL_CONFIG_WAIT;i++) {
+ if (!(readl(host->vaddr + SA5_DOORBELL)
+ & CFGTBL_ChangeReq))
+ break;
+ /* delay and try again */
+ udelay(1000);
+ }
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ if (i >= MAX_IOCTL_CONFIG_WAIT)
+ return -EAGAIN;
+ return(0);
+ }
+ case CCISS_GETNODENAME:
+ {
+ NodeName_type NodeName;
+ int i;
+
+ if (!arg) return -EINVAL;
+ for(i=0;i<16;i++)
+ NodeName[i] = readb(&host->cfgtable->ServerName[i]);
+ if (copy_to_user(argp, NodeName, sizeof( NodeName_type)))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_SETNODENAME:
+ {
+ NodeName_type NodeName;
+ unsigned long flags;
+ int i;
+
+ if (!arg) return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN)) return -EPERM;
+
+ if (copy_from_user(NodeName, argp, sizeof( NodeName_type)))
+ return -EFAULT;
+
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+
+ /* Update the field, and then ring the doorbell */
+ for(i=0;i<16;i++)
+ writeb( NodeName[i], &host->cfgtable->ServerName[i]);
+
+ writel( CFGTBL_ChangeReq, host->vaddr + SA5_DOORBELL);
+
+ for(i=0;i<MAX_IOCTL_CONFIG_WAIT;i++) {
+ if (!(readl(host->vaddr + SA5_DOORBELL)
+ & CFGTBL_ChangeReq))
+ break;
+ /* delay and try again */
+ udelay(1000);
+ }
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ if (i >= MAX_IOCTL_CONFIG_WAIT)
+ return -EAGAIN;
+ return(0);
+ }
+
+ case CCISS_GETHEARTBEAT:
+ {
+ Heartbeat_type heartbeat;
+
+ if (!arg) return -EINVAL;
+ heartbeat = readl(&host->cfgtable->HeartBeat);
+ if (copy_to_user(argp, &heartbeat, sizeof( Heartbeat_type)))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_GETBUSTYPES:
+ {
+ BusTypes_type BusTypes;
+
+ if (!arg) return -EINVAL;
+ BusTypes = readl(&host->cfgtable->BusTypes);
+ if (copy_to_user(argp, &BusTypes, sizeof( BusTypes_type) ))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_GETFIRMVER:
+ {
+ FirmwareVer_type firmware;
+
+ if (!arg) return -EINVAL;
+ memcpy(firmware, host->firm_ver, 4);
+
+ if (copy_to_user(argp, firmware, sizeof( FirmwareVer_type)))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_GETDRIVVER:
+ {
+ DriverVer_type DriverVer = DRIVER_VERSION;
+
+ if (!arg) return -EINVAL;
+
+ if (copy_to_user(argp, &DriverVer, sizeof( DriverVer_type) ))
+ return -EFAULT;
+ return(0);
+ }
+
+ case CCISS_REVALIDVOLS:
+ if (bdev != bdev->bd_contains || drv != host->drv)
+ return -ENXIO;
+ return revalidate_allvol(host);
+
+ case CCISS_GETLUNINFO: {
+ LogvolInfo_struct luninfo;
+ int i;
+
+ luninfo.LunID = drv->LunID;
+ luninfo.num_opens = drv->usage_count;
+ luninfo.num_parts = 0;
+ /* count partitions 1 to 15 with sizes > 0 */
+ for (i = 0; i < MAX_PART - 1; i++) {
+ if (!disk->part[i])
+ continue;
+ if (disk->part[i]->nr_sects != 0)
+ luninfo.num_parts++;
+ }
+ if (copy_to_user(argp, &luninfo,
+ sizeof(LogvolInfo_struct)))
+ return -EFAULT;
+ return(0);
+ }
+ case CCISS_DEREGDISK:
+ return deregister_disk(disk);
+
+ case CCISS_REGNEWD:
+ return register_new_disk(host);
+
+ case CCISS_PASSTHRU:
+ {
+ IOCTL_Command_struct iocommand;
+ CommandList_struct *c;
+ char *buff = NULL;
+ u64bit temp64;
+ unsigned long flags;
+ DECLARE_COMPLETION(wait);
+
+ if (!arg) return -EINVAL;
+
+ if (!capable(CAP_SYS_RAWIO)) return -EPERM;
+
+ if (copy_from_user(&iocommand, argp, sizeof( IOCTL_Command_struct) ))
+ return -EFAULT;
+ if((iocommand.buf_size < 1) &&
+ (iocommand.Request.Type.Direction != XFER_NONE))
+ {
+ return -EINVAL;
+ }
+#if 0 /* 'buf_size' member is 16-bits, and always smaller than kmalloc limit */
+ /* Check kmalloc limits */
+ if(iocommand.buf_size > 128000)
+ return -EINVAL;
+#endif
+ 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;
+ }
+ } else {
+ memset(buff, 0, iocommand.buf_size);
+ }
+ if ((c = cmd_alloc(host , 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( host->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
+ }
+ c->waiting = &wait;
+
+ /* Put the request on the tail of the request queue */
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ addQ(&host->reqQ, c);
+ host->Qdepth++;
+ start_io(host);
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+
+ wait_for_completion(&wait);
+
+ /* unlock the buffers from DMA */
+ temp64.val32.lower = c->SG[0].Addr.lower;
+ temp64.val32.upper = c->SG[0].Addr.upper;
+ pci_unmap_single( host->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(argp, &iocommand, sizeof( IOCTL_Command_struct) ) )
+ {
+ kfree(buff);
+ cmd_free(host, 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(host, c, 0);
+ return -EFAULT;
+ }
+ }
+ kfree(buff);
+ cmd_free(host, c, 0);
+ return(0);
+ }
+ case CCISS_BIG_PASSTHRU: {
+ BIG_IOCTL_Command_struct *ioc;
+ CommandList_struct *c;
+ unsigned char **buff = NULL;
+ int *buff_size = NULL;
+ u64bit temp64;
+ unsigned long flags;
+ BYTE sg_used = 0;
+ int status = 0;
+ int i;
+ DECLARE_COMPLETION(wait);
+ __u32 left;
+ __u32 sz;
+ BYTE __user *data_ptr;
+
+ if (!arg)
+ return -EINVAL;
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+ ioc = (BIG_IOCTL_Command_struct *)
+ kmalloc(sizeof(*ioc), GFP_KERNEL);
+ if (!ioc) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ if (copy_from_user(ioc, argp, sizeof(*ioc))) {
+ status = -EFAULT;
+ goto cleanup1;
+ }
+ if ((ioc->buf_size < 1) &&
+ (ioc->Request.Type.Direction != XFER_NONE)) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ /* Check kmalloc limits using all SGs */
+ if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ buff = (unsigned char **) kmalloc(MAXSGENTRIES *
+ sizeof(char *), GFP_KERNEL);
+ if (!buff) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ memset(buff, 0, MAXSGENTRIES);
+ buff_size = (int *) kmalloc(MAXSGENTRIES * sizeof(int),
+ GFP_KERNEL);
+ if (!buff_size) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ left = ioc->buf_size;
+ data_ptr = ioc->buf;
+ while (left) {
+ sz = (left > ioc->malloc_size) ? ioc->malloc_size : left;
+ buff_size[sg_used] = sz;
+ buff[sg_used] = kmalloc(sz, GFP_KERNEL);
+ if (buff[sg_used] == NULL) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ if (ioc->Request.Type.Direction == XFER_WRITE &&
+ copy_from_user(buff[sg_used], data_ptr, sz)) {
+ status = -ENOMEM;
+ goto cleanup1;
+ } else {
+ memset(buff[sg_used], 0, sz);
+ }
+ left -= sz;
+ data_ptr += sz;
+ sg_used++;
+ }
+ if ((c = cmd_alloc(host , 0)) == NULL) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ c->cmd_type = CMD_IOCTL_PEND;
+ c->Header.ReplyQueue = 0;
+
+ if( ioc->buf_size > 0) {
+ c->Header.SGList = sg_used;
+ c->Header.SGTotal= sg_used;
+ } else {
+ c->Header.SGList = 0;
+ c->Header.SGTotal= 0;
+ }
+ c->Header.LUN = ioc->LUN_info;
+ c->Header.Tag.lower = c->busaddr;
+
+ c->Request = ioc->Request;
+ if (ioc->buf_size > 0 ) {
+ int i;
+ for(i=0; i<sg_used; i++) {
+ temp64.val = pci_map_single( host->pdev, buff[i],
+ buff_size[i],
+ PCI_DMA_BIDIRECTIONAL);
+ c->SG[i].Addr.lower = temp64.val32.lower;
+ c->SG[i].Addr.upper = temp64.val32.upper;
+ c->SG[i].Len = buff_size[i];
+ c->SG[i].Ext = 0; /* we are not chaining */
+ }
+ }
+ c->waiting = &wait;
+ /* Put the request on the tail of the request queue */
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ addQ(&host->reqQ, c);
+ host->Qdepth++;
+ start_io(host);
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ wait_for_completion(&wait);
+ /* unlock the buffers from DMA */
+ for(i=0; i<sg_used; i++) {
+ temp64.val32.lower = c->SG[i].Addr.lower;
+ temp64.val32.upper = c->SG[i].Addr.upper;
+ pci_unmap_single( host->pdev, (dma_addr_t) temp64.val,
+ buff_size[i], PCI_DMA_BIDIRECTIONAL);
+ }
+ /* Copy the error information out */
+ ioc->error_info = *(c->err_info);
+ if (copy_to_user(argp, ioc, sizeof(*ioc))) {
+ cmd_free(host, c, 0);
+ status = -EFAULT;
+ goto cleanup1;
+ }
+ if (ioc->Request.Type.Direction == XFER_READ) {
+ /* Copy the data out of the buffer we created */
+ BYTE __user *ptr = ioc->buf;
+ for(i=0; i< sg_used; i++) {
+ if (copy_to_user(ptr, buff[i], buff_size[i])) {
+ cmd_free(host, c, 0);
+ status = -EFAULT;
+ goto cleanup1;
+ }
+ ptr += buff_size[i];
+ }
+ }
+ cmd_free(host, c, 0);
+ status = 0;
+cleanup1:
+ if (buff) {
+ for(i=0; i<sg_used; i++)
+ if(buff[i] != NULL)
+ kfree(buff[i]);
+ kfree(buff);
+ }
+ if (buff_size)
+ kfree(buff_size);
+ if (ioc)
+ kfree(ioc);
+ return(status);
+ }
+ default:
+ return -ENOTTY;
+ }
+
+}
+
+/*
+ * 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(ctlr_info_t *host)
+{
+ int ctlr = host->ctlr, i;
+ unsigned long flags;
+
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ if (host->usage_count > 1) {
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ printk(KERN_WARNING "cciss: Device busy for volume"
+ " revalidation (usage=%d)\n", host->usage_count);
+ return -EBUSY;
+ }
+ host->usage_count++;
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+
+ for(i=0; i< NWD; i++) {
+ struct gendisk *disk = host->gendisk[i];
+ if (disk->flags & GENHD_FL_UP)
+ del_gendisk(disk);
+ }
+
+ /*
+ * Set the partition and block size structures for all volumes
+ * on this controller to zero. We will reread all of this data
+ */
+ memset(host->drv, 0, sizeof(drive_info_struct)
+ * CISS_MAX_LUN);
+ /*
+ * 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.
+ */
+ host->access.set_intr_mask(host, CCISS_INTR_OFF);
+ cciss_getgeometry(ctlr);
+ host->access.set_intr_mask(host, CCISS_INTR_ON);
+
+ /* Loop through each real device */
+ for (i = 0; i < NWD; i++) {
+ struct gendisk *disk = host->gendisk[i];
+ drive_info_struct *drv = &(host->drv[i]);
+ /* we must register the controller even if no disks exist */
+ /* this is for the online array utilities */
+ if (!drv->heads && i)
+ continue;
+ blk_queue_hardsect_size(host->queue, drv->block_size);
+ set_capacity(disk, drv->nr_blocks);
+ add_disk(disk);
+ }
+ host->usage_count--;
+ return 0;
+}
+
+static int deregister_disk(struct gendisk *disk)
+{
+ unsigned long flags;
+ ctlr_info_t *h = get_host(disk);
+ drive_info_struct *drv = get_drv(disk);
+ int ctlr = h->ctlr;
+
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ /* make sure logical volume is NOT is use */
+ if( drv->usage_count > 1) {
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+ return -EBUSY;
+ }
+ drv->usage_count++;
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+
+ /* invalidate the devices and deregister the disk */
+ if (disk->flags & GENHD_FL_UP)
+ del_gendisk(disk);
+ /* check to see if it was the last disk */
+ if (drv == h->drv + h->highest_lun) {
+ /* if so, find the new hightest lun */
+ int i, newhighest =-1;
+ for(i=0; i<h->highest_lun; i++) {
+ /* if the disk has size > 0, it is available */
+ if (h->drv[i].nr_blocks)
+ newhighest = i;
+ }
+ h->highest_lun = newhighest;
+
+ }
+ --h->num_luns;
+ /* zero out the disk size info */
+ drv->nr_blocks = 0;
+ drv->block_size = 0;
+ drv->cylinders = 0;
+ drv->LunID = 0;
+ return(0);
+}
+static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff,
+ size_t size,
+ unsigned int use_unit_num, /* 0: address the controller,
+ 1: address logical volume log_unit,
+ 2: periph device address is scsi3addr */
+ unsigned int log_unit, __u8 page_code, unsigned char *scsi3addr,
+ int cmd_type)
+{
+ ctlr_info_t *h= hba[ctlr];
+ u64bit buff_dma_handle;
+ int status = IO_OK;
+
+ c->cmd_type = CMD_IOCTL_PEND;
+ c->Header.ReplyQueue = 0;
+ if( buff != NULL) {
+ c->Header.SGList = 1;
+ c->Header.SGTotal= 1;
+ } else {
+ c->Header.SGList = 0;
+ c->Header.SGTotal= 0;
+ }
+ c->Header.Tag.lower = c->busaddr;
+
+ c->Request.Type.Type = cmd_type;
+ if (cmd_type == TYPE_CMD) {
+ 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, if use_unit_num == 1,
+ mode = 1(volume set addressing) target = LUNID
+ otherwise, if use_unit_num == 2,
+ mode = 0(periph dev addr) target = scsi3addr */
+ if (use_unit_num == 1) {
+ c->Header.LUN.LogDev.VolId=
+ h->drv[log_unit].LunID;
+ c->Header.LUN.LogDev.Mode = 1;
+ } else if (use_unit_num == 2) {
+ memcpy(c->Header.LUN.LunAddrBytes,scsi3addr,8);
+ c->Header.LUN.LogDev.Mode = 0;
+ }
+ /* 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.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_READ;
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = CISS_INQUIRY;
+ c->Request.CDB[4] = size & 0xFF;
+ break;
+ case CISS_REPORT_LOG:
+ case CISS_REPORT_PHYS:
+ /* Talking to controller so It's a physical command
+ mode = 00 target = 0. Nothing to write.
+ */
+ c->Request.CDBLen = 12;
+ c->Request.Type.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_READ;
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = cmd;
+ 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 = h->drv[log_unit].LunID;
+ c->Header.LUN.LogDev.Mode = 1;
+ c->Request.CDBLen = 10;
+ c->Request.Type.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_READ;
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = cmd;
+ break;
+ case CCISS_CACHE_FLUSH:
+ c->Request.CDBLen = 12;
+ c->Request.Type.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_WRITE;
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = BMIC_WRITE;
+ c->Request.CDB[6] = BMIC_CACHE_FLUSH;
+ break;
+ default:
+ printk(KERN_WARNING
+ "cciss%d: Unknown Command 0x%c\n", ctlr, cmd);
+ return(IO_ERROR);
+ }
+ } else if (cmd_type == TYPE_MSG) {
+ switch (cmd) {
+ case 3: /* No-Op message */
+ c->Request.CDBLen = 1;
+ c->Request.Type.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_WRITE;
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = cmd;
+ break;
+ default:
+ printk(KERN_WARNING
+ "cciss%d: unknown message type %d\n",
+ ctlr, cmd);
+ return IO_ERROR;
+ }
+ } else {
+ printk(KERN_WARNING
+ "cciss%d: unknown command type %d\n", ctlr, cmd_type);
+ return IO_ERROR;
+ }
+ /* Fill in the scatter gather information */
+ if (size > 0) {
+ buff_dma_handle.val = (__u64) pci_map_single(h->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 */
+ }
+ return status;
+}
+static int sendcmd_withirq(__u8 cmd,
+ int ctlr,
+ void *buff,
+ size_t size,
+ unsigned int use_unit_num,
+ unsigned int log_unit,
+ __u8 page_code,
+ int cmd_type)
+{
+ ctlr_info_t *h = hba[ctlr];
+ CommandList_struct *c;
+ u64bit buff_dma_handle;
+ unsigned long flags;
+ int return_status;
+ DECLARE_COMPLETION(wait);
+
+ if ((c = cmd_alloc(h , 0)) == NULL)
+ return -ENOMEM;
+ return_status = fill_cmd(c, cmd, ctlr, buff, size, use_unit_num,
+ log_unit, page_code, NULL, cmd_type);
+ if (return_status != IO_OK) {
+ cmd_free(h, c, 0);
+ return return_status;
+ }
+resend_cmd2:
+ c->waiting = &wait;
+
+ /* Put the request on the tail of the queue and send it */
+ spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
+ addQ(&h->reqQ, c);
+ h->Qdepth++;
+ start_io(h);
+ spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
+
+ wait_for_completion(&wait);
+
+ if(c->err_info->CommandStatus != 0)
+ { /* an error has occurred */
+ switch(c->err_info->CommandStatus)
+ {
+ case CMD_TARGET_STATUS:
+ printk(KERN_WARNING "cciss: cmd %p has "
+ " completed with errors\n", c);
+ if( c->err_info->ScsiStatus)
+ {
+ printk(KERN_WARNING "cciss: cmd %p "
+ "has SCSI Status = %x\n",
+ c,
+ c->err_info->ScsiStatus);
+ }
+
+ break;
+ case CMD_DATA_UNDERRUN:
+ case CMD_DATA_OVERRUN:
+ /* expected for inquire and report lun commands */
+ break;
+ case CMD_INVALID:
+ printk(KERN_WARNING "cciss: Cmd %p is "
+ "reported invalid\n", c);
+ return_status = IO_ERROR;
+ break;
+ case CMD_PROTOCOL_ERR:
+ printk(KERN_WARNING "cciss: cmd %p has "
+ "protocol error \n", c);
+ return_status = IO_ERROR;
+ break;
+case CMD_HARDWARE_ERR:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ " hardware error\n", c);
+ return_status = IO_ERROR;
+ break;
+ case CMD_CONNECTION_LOST:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ "connection lost\n", c);
+ return_status = IO_ERROR;
+ break;
+ case CMD_ABORTED:
+ printk(KERN_WARNING "cciss: cmd %p was "
+ "aborted\n", c);
+ return_status = IO_ERROR;
+ break;
+ case CMD_ABORT_FAILED:
+ printk(KERN_WARNING "cciss: cmd %p reports "
+ "abort failed\n", c);
+ return_status = IO_ERROR;
+ break;
+ case CMD_UNSOLICITED_ABORT:
+ printk(KERN_WARNING
+ "cciss%d: unsolicited abort %p\n",
+ ctlr, c);
+ if (c->retry_count < MAX_CMD_RETRIES) {
+ printk(KERN_WARNING
+ "cciss%d: retrying %p\n",
+ ctlr, c);
+ c->retry_count++;
+ /* erase the old error information */
+ memset(c->err_info, 0,
+ sizeof(ErrorInfo_struct));
+ return_status = IO_OK;
+ INIT_COMPLETION(wait);
+ goto resend_cmd2;
+ }
+ return_status = IO_ERROR;
+ break;
+ default:
+ printk(KERN_WARNING "cciss: cmd %p returned "
+ "unknown status %x\n", c,
+ c->err_info->CommandStatus);
+ return_status = IO_ERROR;
+ }
+ }
+ /* unlock the buffers from DMA */
+ pci_unmap_single( h->pdev, (dma_addr_t) buff_dma_handle.val,
+ size, PCI_DMA_BIDIRECTIONAL);
+ cmd_free(h, c, 0);
+ return(return_status);
+
+}
+static void cciss_geometry_inquiry(int ctlr, int logvol,
+ int withirq, unsigned int total_size,
+ unsigned int block_size, InquiryData_struct *inq_buff,
+ drive_info_struct *drv)
+{
+ int return_code;
+ memset(inq_buff, 0, sizeof(InquiryData_struct));
+ if (withirq)
+ return_code = sendcmd_withirq(CISS_INQUIRY, ctlr,
+ inq_buff, sizeof(*inq_buff), 1, logvol ,0xC1, TYPE_CMD);
+ else
+ return_code = sendcmd(CISS_INQUIRY, ctlr, inq_buff,
+ sizeof(*inq_buff), 1, logvol ,0xC1, NULL, TYPE_CMD);
+ if (return_code == IO_OK) {
+ if(inq_buff->data_byte[8] == 0xFF) {
+ printk(KERN_WARNING
+ "cciss: reading geometry failed, volume "
+ "does not support reading geometry\n");
+ drv->block_size = block_size;
+ drv->nr_blocks = total_size;
+ drv->heads = 255;
+ drv->sectors = 32; // Sectors per track
+ drv->cylinders = total_size / 255 / 32;
+ } else {
+ unsigned int t;
+
+ drv->block_size = block_size;
+ drv->nr_blocks = total_size;
+ drv->heads = inq_buff->data_byte[6];
+ drv->sectors = inq_buff->data_byte[7];
+ drv->cylinders = (inq_buff->data_byte[4] & 0xff) << 8;
+ drv->cylinders += inq_buff->data_byte[5];
+ drv->raid_level = inq_buff->data_byte[8];
+ t = drv->heads * drv->sectors;
+ if (t > 1) {
+ drv->cylinders = total_size/t;
+ }
+ }
+ } else { /* Get geometry failed */
+ printk(KERN_WARNING "cciss: reading geometry failed\n");
+ }
+ printk(KERN_INFO " heads= %d, sectors= %d, cylinders= %d\n\n",
+ drv->heads, drv->sectors, drv->cylinders);
+}
+static void
+cciss_read_capacity(int ctlr, int logvol, ReadCapdata_struct *buf,
+ int withirq, unsigned int *total_size, unsigned int *block_size)
+{
+ int return_code;
+ memset(buf, 0, sizeof(*buf));
+ if (withirq)
+ return_code = sendcmd_withirq(CCISS_READ_CAPACITY,
+ ctlr, buf, sizeof(*buf), 1, logvol, 0, TYPE_CMD);
+ else
+ return_code = sendcmd(CCISS_READ_CAPACITY,
+ ctlr, buf, sizeof(*buf), 1, logvol, 0, NULL, TYPE_CMD);
+ if (return_code == IO_OK) {
+ *total_size = be32_to_cpu(*((__be32 *) &buf->total_size[0]))+1;
+ *block_size = be32_to_cpu(*((__be32 *) &buf->block_size[0]));
+ } else { /* read capacity command failed */
+ printk(KERN_WARNING "cciss: read capacity failed\n");
+ *total_size = 0;
+ *block_size = BLOCK_SIZE;
+ }
+ printk(KERN_INFO " blocks= %u block_size= %d\n",
+ *total_size, *block_size);
+ return;
+}
+
+static int register_new_disk(ctlr_info_t *h)
+{
+ struct gendisk *disk;
+ int ctlr = h->ctlr;
+ int i;
+ int num_luns;
+ int logvol;
+ int new_lun_found = 0;
+ int new_lun_index = 0;
+ int free_index_found = 0;
+ int free_index = 0;
+ ReportLunData_struct *ld_buff = NULL;
+ ReadCapdata_struct *size_buff = NULL;
+ InquiryData_struct *inq_buff = NULL;
+ int return_code;
+ int listlength = 0;
+ __u32 lunid = 0;
+ unsigned int block_size;
+ unsigned int total_size;
+
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+ /* if we have no space in our disk array left to add anything */
+ if( h->num_luns >= CISS_MAX_LUN)
+ return -EINVAL;
+
+ ld_buff = kmalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
+ if (ld_buff == NULL)
+ goto mem_msg;
+ memset(ld_buff, 0, sizeof(ReportLunData_struct));
+ size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
+ if (size_buff == NULL)
+ goto mem_msg;
+ inq_buff = kmalloc(sizeof( InquiryData_struct), GFP_KERNEL);
+ if (inq_buff == NULL)
+ goto mem_msg;
+
+ return_code = sendcmd_withirq(CISS_REPORT_LOG, ctlr, ld_buff,
+ sizeof(ReportLunData_struct), 0, 0, 0, TYPE_CMD);
+
+ if( return_code == IO_OK)
+ {
+
+ // printk("LUN Data\n--------------------------\n");
+
+ 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 failed\n");
+ listlength = 0;
+ goto free_err;
+ }
+ num_luns = listlength / 8; // 8 bytes pre entry
+ if (num_luns > CISS_MAX_LUN)
+ {
+ num_luns = CISS_MAX_LUN;
+ }
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "Length = %x %x %x %x = %d\n", ld_buff->LUNListLength[0],
+ ld_buff->LUNListLength[1], ld_buff->LUNListLength[2],
+ ld_buff->LUNListLength[3], num_luns);
+#endif
+ for(i=0; i< num_luns; i++)
+ {
+ int j;
+ int lunID_found = 0;
+
+ 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]);
+
+ /* check to see if this is a new lun */
+ for(j=0; j <= h->highest_lun; j++)
+ {
+#ifdef CCISS_DEBUG
+ printk("Checking %d %x against %x\n", j,h->drv[j].LunID,
+ lunid);
+#endif /* CCISS_DEBUG */
+ if (h->drv[j].LunID == lunid)
+ {
+ lunID_found = 1;
+ break;
+ }
+
+ }
+ if( lunID_found == 1)
+ continue;
+ else
+ { /* It is the new lun we have been looking for */
+#ifdef CCISS_DEBUG
+ printk("new lun found at %d\n", i);
+#endif /* CCISS_DEBUG */
+ new_lun_index = i;
+ new_lun_found = 1;
+ break;
+ }
+ }
+ if (!new_lun_found)
+ {
+ printk(KERN_WARNING "cciss: New Logical Volume not found\n");
+ goto free_err;
+ }
+ /* Now find the free index */
+ for(i=0; i <CISS_MAX_LUN; i++)
+ {
+#ifdef CCISS_DEBUG
+ printk("Checking Index %d\n", i);
+#endif /* CCISS_DEBUG */
+ if(h->drv[i].LunID == 0)
+ {
+#ifdef CCISS_DEBUG
+ printk("free index found at %d\n", i);
+#endif /* CCISS_DEBUG */
+ free_index_found = 1;
+ free_index = i;
+ break;
+ }
+ }
+ if (!free_index_found)
+ {
+ printk(KERN_WARNING "cciss: unable to find free slot for disk\n");
+ goto free_err;
+ }
+
+ logvol = free_index;
+ h->drv[logvol].LunID = lunid;
+ /* there could be gaps in lun numbers, track hightest */
+ if(h->highest_lun < lunid)
+ h->highest_lun = logvol;
+ cciss_read_capacity(ctlr, logvol, size_buff, 1,
+ &total_size, &block_size);
+ cciss_geometry_inquiry(ctlr, logvol, 1, total_size, block_size,
+ inq_buff, &h->drv[logvol]);
+ h->drv[logvol].usage_count = 0;
+ ++h->num_luns;
+ /* setup partitions per disk */
+ disk = h->gendisk[logvol];
+ set_capacity(disk, h->drv[logvol].nr_blocks);
+ /* if it's the controller it's already added */
+ if(logvol)
+ add_disk(disk);
+freeret:
+ kfree(ld_buff);
+ kfree(size_buff);
+ kfree(inq_buff);
+ return (logvol);
+mem_msg:
+ printk(KERN_ERR "cciss: out of memory\n");
+free_err:
+ logvol = -1;
+ goto freeret;
+}
+
+static int cciss_revalidate(struct gendisk *disk)
+{
+ ctlr_info_t *h = get_host(disk);
+ drive_info_struct *drv = get_drv(disk);
+ int logvol;
+ int FOUND=0;
+ unsigned int block_size;
+ unsigned int total_size;
+ ReadCapdata_struct *size_buff = NULL;
+ InquiryData_struct *inq_buff = NULL;
+
+ for(logvol=0; logvol < CISS_MAX_LUN; logvol++)
+ {
+ if(h->drv[logvol].LunID == drv->LunID) {
+ FOUND=1;
+ break;
+ }
+ }
+
+ if (!FOUND) return 1;
+
+ size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
+ if (size_buff == NULL)
+ {
+ printk(KERN_WARNING "cciss: out of memory\n");
+ return 1;
+ }
+ inq_buff = kmalloc(sizeof( InquiryData_struct), GFP_KERNEL);
+ if (inq_buff == NULL)
+ {
+ printk(KERN_WARNING "cciss: out of memory\n");
+ kfree(size_buff);
+ return 1;
+ }
+
+ cciss_read_capacity(h->ctlr, logvol, size_buff, 1, &total_size, &block_size);
+ cciss_geometry_inquiry(h->ctlr, logvol, 1, total_size, block_size, inq_buff, drv);
+
+ blk_queue_hardsect_size(h->queue, drv->block_size);
+ set_capacity(disk, drv->nr_blocks);
+
+ kfree(size_buff);
+ kfree(inq_buff);
+ return 0;
+}
+
+/*
+ * Wait polling for a command to complete.
+ * The memory mapped FIFO is polled for the completion.
+ * Used only at init time, interrupts from the HBA are disabled.
+ */
+static unsigned long pollcomplete(int ctlr)
+{
+ unsigned long done;
+ int i;
+
+ /* Wait (up to 20 seconds) for a command to complete */
+
+ for (i = 20 * HZ; i > 0; i--) {
+ done = hba[ctlr]->access.command_completed(hba[ctlr]);
+ if (done == FIFO_EMPTY) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ } 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, /* 0: address the controller,
+ 1: address logical volume log_unit,
+ 2: periph device address is scsi3addr */
+ unsigned int log_unit,
+ __u8 page_code,
+ unsigned char *scsi3addr,
+ int cmd_type)
+{
+ CommandList_struct *c;
+ int i;
+ unsigned long complete;
+ ctlr_info_t *info_p= hba[ctlr];
+ u64bit buff_dma_handle;
+ int status;
+
+ if ((c = cmd_alloc(info_p, 1)) == NULL) {
+ printk(KERN_WARNING "cciss: unable to get memory");
+ return(IO_ERROR);
+ }
+ status = fill_cmd(c, cmd, ctlr, buff, size, use_unit_num,
+ log_unit, page_code, scsi3addr, cmd_type);
+ if (status != IO_OK) {
+ cmd_free(info_p, c, 1);
+ return status;
+ }
+resend_cmd1:
+ /*
+ * Disable interrupt
+ */
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "cciss: turning intr off\n");
+#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 completed\n");
+#endif /* CCISS_DEBUG */
+
+ 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_REPORT_PHYS) ||
+ (c->Request.CDB[0] == CISS_INQUIRY)) &&
+ ((c->err_info->CommandStatus ==
+ CMD_DATA_OVERRUN) ||
+ (c->err_info->CommandStatus ==
+ CMD_DATA_UNDERRUN)
+ ))
+ {
+ complete = c->busaddr;
+ } else {
+ if (c->err_info->CommandStatus ==
+ CMD_UNSOLICITED_ABORT) {
+ printk(KERN_WARNING "cciss%d: "
+ "unsolicited abort %p\n",
+ ctlr, c);
+ if (c->retry_count < MAX_CMD_RETRIES) {
+ printk(KERN_WARNING
+ "cciss%d: retrying %p\n",
+ ctlr, c);
+ c->retry_count++;
+ /* erase the old error */
+ /* information */
+ memset(c->err_info, 0,
+ sizeof(ErrorInfo_struct));
+ goto resend_cmd1;
+ } else {
+ printk(KERN_WARNING
+ "cciss%d: retried %p too "
+ "many times\n", ctlr, c);
+ status = IO_ERROR;
+ goto cleanup1;
+ }
+ }
+ printk(KERN_WARNING "ciss ciss%d: sendcmd"
+ " Error %x \n", ctlr,
+ c->err_info->CommandStatus);
+ printk(KERN_WARNING "ciss ciss%d: sendcmd"
+ " offensive info\n"
+ " size %x\n num %x value %x\n", 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);
+ status = IO_ERROR;
+ goto cleanup1;
+ }
+ }
+ if (complete != c->busaddr) {
+ printk( KERN_WARNING "cciss cciss%d: SendCmd "
+ "Invalid command list address returned! (%lx)\n",
+ ctlr, complete);
+ status = IO_ERROR;
+ goto cleanup1;
+ }
+ } else {
+ printk( KERN_WARNING
+ "cciss cciss%d: SendCmd Timeout out, "
+ "No command list address returned!\n",
+ ctlr);
+ status = IO_ERROR;
+ }
+
+cleanup1:
+ /* unlock the data buffer from DMA */
+ pci_unmap_single(info_p->pdev, (dma_addr_t) buff_dma_handle.val,
+ size, PCI_DMA_BIDIRECTIONAL);
+ cmd_free(info_p, c, 1);
+ return (status);
+}
+/*
+ * Map (physical) PCI mem into (virtual) kernel space
+ */
+static void __iomem *remap_pci_mem(ulong base, ulong size)
+{
+ ulong page_base = ((ulong) base) & PAGE_MASK;
+ ulong page_offs = ((ulong) base) - page_base;
+ void __iomem *page_remapped = ioremap(page_base, page_offs+size);
+
+ return page_remapped ? (page_remapped + page_offs) : NULL;
+}
+
+/*
+ * 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");
+ break;
+ }
+
+ /* 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 bio *bio, int status)
+{
+ while (bio) {
+ struct bio *xbh = bio->bi_next;
+ int nr_sectors = bio_sectors(bio);
+
+ bio->bi_next = NULL;
+ blk_finished_io(len);
+ bio_endio(bio, nr_sectors << 9, status ? 0 : -EIO);
+ bio = xbh;
+ }
+
+}
+/* Assumes that CCISS_LOCK(h->ctlr) is held. */
+/* Zeros out the error record and then resends the command back */
+/* to the controller */
+static inline void resend_cciss_cmd( ctlr_info_t *h, CommandList_struct *c)
+{
+ /* erase the old error information */
+ memset(c->err_info, 0, sizeof(ErrorInfo_struct));
+
+ /* add it to software queue and then send it to the controller */
+ addQ(&(h->reqQ),c);
+ h->Qdepth++;
+ if(h->Qdepth > h->maxQsinceinit)
+ h->maxQsinceinit = h->Qdepth;
+
+ start_io(h);
+}
+/* checks the status of the job and calls complete buffers to mark all
+ * buffers for the completed job.
+ */
+static inline void complete_command( ctlr_info_t *h, CommandList_struct *cmd,
+ int timeout)
+{
+ int status = 1;
+ int i;
+ int retry_cmd = 0;
+ u64bit temp64;
+
+ if (timeout)
+ status = 0;
+
+ if(cmd->err_info->CommandStatus != 0)
+ { /* an error has occurred */
+ switch(cmd->err_info->CommandStatus)
+ {
+ unsigned char sense_key;
+ case CMD_TARGET_STATUS:
+ status = 0;
+
+ if( cmd->err_info->ScsiStatus == 0x02)
+ {
+ printk(KERN_WARNING "cciss: cmd %p "
+ "has CHECK CONDITION "
+ " byte 2 = 0x%x\n", cmd,
+ cmd->err_info->SenseInfo[2]
+ );
+ /* check the sense key */
+ sense_key = 0xf &
+ cmd->err_info->SenseInfo[2];
+ /* no status or recovered error */
+ if((sense_key == 0x0) ||
+ (sense_key == 0x1))
+ {
+ status = 1;
+ }
+ } else
+ {
+ printk(KERN_WARNING "cciss: cmd %p "
+ "has SCSI Status 0x%x\n",
+ cmd, cmd->err_info->ScsiStatus);
+ }
+ break;
+ case CMD_DATA_UNDERRUN:
+ printk(KERN_WARNING "cciss: cmd %p has"
+ " completed with data underrun "
+ "reported\n", cmd);
+ break;
+ case CMD_DATA_OVERRUN:
+ printk(KERN_WARNING "cciss: cmd %p has"
+ " completed with data overrun "
+ "reported\n", cmd);
+ break;
+ case CMD_INVALID:
+ printk(KERN_WARNING "cciss: cmd %p is "
+ "reported invalid\n", 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 error\n", cmd);
+ status = 0;
+ break;
+ case CMD_CONNECTION_LOST:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ "connection lost\n", cmd);
+ status=0;
+ break;
+ case CMD_ABORTED:
+ printk(KERN_WARNING "cciss: cmd %p was "
+ "aborted\n", cmd);
+ status=0;
+ break;
+ case CMD_ABORT_FAILED:
+ printk(KERN_WARNING "cciss: cmd %p reports "
+ "abort failed\n", cmd);
+ status=0;
+ break;
+ case CMD_UNSOLICITED_ABORT:
+ printk(KERN_WARNING "cciss%d: unsolicited "
+ "abort %p\n", h->ctlr, cmd);
+ if (cmd->retry_count < MAX_CMD_RETRIES) {
+ retry_cmd=1;
+ printk(KERN_WARNING
+ "cciss%d: retrying %p\n",
+ h->ctlr, cmd);
+ cmd->retry_count++;
+ } else
+ printk(KERN_WARNING
+ "cciss%d: %p retried too "
+ "many times\n", h->ctlr, cmd);
+ status=0;
+ break;
+ case CMD_TIMEOUT:
+ printk(KERN_WARNING "cciss: cmd %p timedout\n",
+ cmd);
+ status=0;
+ break;
+ default:
+ printk(KERN_WARNING "cciss: cmd %p returned "
+ "unknown status %x\n", cmd,
+ cmd->err_info->CommandStatus);
+ status=0;
+ }
+ }
+ /* We need to return this command */
+ if(retry_cmd) {
+ resend_cciss_cmd(h,cmd);
+ return;
+ }
+ /* command did not need to be retried */
+ /* 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_page(hba[cmd->ctlr]->pdev,
+ temp64.val, cmd->SG[i].Len,
+ (cmd->Request.Type.Direction == XFER_READ) ?
+ PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
+ }
+ complete_buffers(cmd->rq->bio, status);
+
+#ifdef CCISS_DEBUG
+ printk("Done with %p\n", cmd->rq);
+#endif /* CCISS_DEBUG */
+
+ end_that_request_last(cmd->rq);
+ cmd_free(h,cmd,1);
+}
+
+/*
+ * Get a request and submit it to the controller.
+ */
+static void do_cciss_request(request_queue_t *q)
+{
+ ctlr_info_t *h= q->queuedata;
+ CommandList_struct *c;
+ int start_blk, seg;
+ struct request *creq;
+ u64bit temp64;
+ struct scatterlist tmp_sg[MAXSGENTRIES];
+ drive_info_struct *drv;
+ int i, dir;
+
+ /* We call start_io here in case there is a command waiting on the
+ * queue that has not been sent.
+ */
+ if (blk_queue_plugged(q))
+ goto startio;
+
+queue:
+ creq = elv_next_request(q);
+ if (!creq)
+ goto startio;
+
+ if (creq->nr_phys_segments > MAXSGENTRIES)
+ BUG();
+
+ if (( c = cmd_alloc(h, 1)) == NULL)
+ goto full;
+
+ blkdev_dequeue_request(creq);
+
+ spin_unlock_irq(q->queue_lock);
+
+ c->cmd_type = CMD_RWREQ;
+ c->rq = creq;
+
+ /* fill in the request */
+ drv = creq->rq_disk->private_data;
+ 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= drv->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 =
+ (rq_data_dir(creq) == READ) ? XFER_READ: XFER_WRITE;
+ c->Request.Timeout = 0; // Don't time out
+ c->Request.CDB[0] = (rq_data_dir(creq) == READ) ? CCISS_READ : CCISS_WRITE;
+ start_blk = creq->sector;
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "ciss: sector =%d nr_sectors=%d\n",(int) creq->sector,
+ (int) creq->nr_sectors);
+#endif /* CCISS_DEBUG */
+
+ seg = blk_rq_map_sg(q, creq, tmp_sg);
+
+ /* get the DMA records for the setup */
+ if (c->Request.Type.Direction == XFER_READ)
+ dir = PCI_DMA_FROMDEVICE;
+ else
+ dir = PCI_DMA_TODEVICE;
+
+ for (i=0; i<seg; i++)
+ {
+ c->SG[i].Len = tmp_sg[i].length;
+ temp64.val = (__u64) pci_map_page(h->pdev, tmp_sg[i].page,
+ tmp_sg[i].offset, tmp_sg[i].length,
+ dir);
+ 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 segments\n", 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(q->queue_lock);
+
+ addQ(&(h->reqQ),c);
+ h->Qdepth++;
+ if(h->Qdepth > h->maxQsinceinit)
+ h->maxQsinceinit = h->Qdepth;
+
+ goto queue;
+full:
+ blk_stop_queue(q);
+startio:
+ /* We will already have the driver lock here so not need
+ * to lock it.
+ */
+ start_io(h);
+}
+
+static irqreturn_t 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;
+ int j;
+ int start_queue = h->next_to_run;
+
+ /* Is this interrupt for us? */
+ if (( h->access.intr_pending(h) == 0) || (h->interrupts_enabled == 0))
+ return IRQ_NONE;
+
+ /*
+ * If there are completed commands in the completion queue,
+ * we had better do something about it.
+ */
+ spin_lock_irqsave(CCISS_LOCK(h->ctlr), 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 ignored\n", (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(h, c, 0);
+ } else if (c->cmd_type == CMD_IOCTL_PEND) {
+ complete(c->waiting);
+ }
+# ifdef CONFIG_CISS_SCSI_TAPE
+ else if (c->cmd_type == CMD_SCSI)
+ complete_scsi_command(c, 0, a1);
+# endif
+ continue;
+ }
+ }
+ }
+
+ /* check to see if we have maxed out the number of commands that can
+ * be placed on the queue. If so then exit. We do this check here
+ * in case the interrupt we serviced was from an ioctl and did not
+ * free any new commands.
+ */
+ if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS)
+ goto cleanup;
+
+ /* We have room on the queue for more commands. Now we need to queue
+ * them up. We will also keep track of the next queue to run so
+ * that every queue gets a chance to be started first.
+ */
+ for (j=0; j < NWD; j++){
+ int curr_queue = (start_queue + j) % NWD;
+ /* make sure the disk has been added and the drive is real
+ * because this can be called from the middle of init_one.
+ */
+ if(!(h->gendisk[curr_queue]->queue) ||
+ !(h->drv[curr_queue].heads))
+ continue;
+ blk_start_queue(h->gendisk[curr_queue]->queue);
+
+ /* check to see if we have maxed out the number of commands
+ * that can be placed on the queue.
+ */
+ if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS)
+ {
+ if (curr_queue == start_queue){
+ h->next_to_run = (start_queue + 1) % NWD;
+ goto cleanup;
+ } else {
+ h->next_to_run = curr_queue;
+ goto cleanup;
+ }
+ } else {
+ curr_queue = (curr_queue + 1) % NWD;
+ }
+ }
+
+cleanup:
+ spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
+ return IRQ_HANDLED;
+}
+
+/*
+ * 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 information\n");
+ printk("------------------------------------\n");
+ for(i=0;i<4;i++)
+ temp_name[i] = readb(&(tb->Signature[i]));
+ temp_name[4]='\0';
+ printk(" Signature = %s\n", temp_name);
+ printk(" Spec Number = %d\n", readl(&(tb->SpecValence)));
+ printk(" Transport methods supported = 0x%x\n",
+ readl(&(tb-> TransportSupport)));
+ printk(" Transport methods active = 0x%x\n",
+ readl(&(tb->TransportActive)));
+ printk(" Requested transport Method = 0x%x\n",
+ readl(&(tb->HostWrite.TransportRequest)));
+ printk(" Coalese Interrupt Delay = 0x%x\n",
+ readl(&(tb->HostWrite.CoalIntDelay)));
+ printk(" Coalese Interrupt Count = 0x%x\n",
+ readl(&(tb->HostWrite.CoalIntCount)));
+ printk(" Max outstanding commands = 0x%d\n",
+ readl(&(tb->CmdsOutMax)));
+ printk(" Bus Types = 0x%x\n", readl(&(tb-> BusTypes)));
+ for(i=0;i<16;i++)
+ temp_name[i] = readb(&(tb->ServerName[i]));
+ temp_name[16] = '\0';
+ printk(" Server Name = %s\n", temp_name);
+ printk(" Heartbeat Counter = 0x%x\n\n\n",
+ readl(&(tb->HeartBeat)));
+}
+#endif /* CCISS_DEBUG */
+
+static void release_io_mem(ctlr_info_t *c)
+{
+ /* if IO mem was not protected do nothing */
+ if( c->io_mem_addr == 0)
+ return;
+ release_region(c->io_mem_addr, c->io_mem_length);
+ c->io_mem_addr = 0;
+ c->io_mem_length = 0;
+}
+
+static int find_PCI_BAR_index(struct pci_dev *pdev,
+ unsigned long pci_bar_addr)
+{
+ int i, offset, mem_type, bar_type;
+ if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */
+ return 0;
+ offset = 0;
+ for (i=0; i<DEVICE_COUNT_RESOURCE; i++) {
+ bar_type = pci_resource_flags(pdev, i) &
+ PCI_BASE_ADDRESS_SPACE;
+ if (bar_type == PCI_BASE_ADDRESS_SPACE_IO)
+ offset += 4;
+ else {
+ mem_type = pci_resource_flags(pdev, i) &
+ PCI_BASE_ADDRESS_MEM_TYPE_MASK;
+ switch (mem_type) {
+ case PCI_BASE_ADDRESS_MEM_TYPE_32:
+ case PCI_BASE_ADDRESS_MEM_TYPE_1M:
+ offset += 4; /* 32 bit */
+ break;
+ case PCI_BASE_ADDRESS_MEM_TYPE_64:
+ offset += 8;
+ break;
+ default: /* reserved in PCI 2.2 */
+ printk(KERN_WARNING "Base address is invalid\n");
+ return -1;
+ break;
+ }
+ }
+ if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0)
+ return i+1;
+ }
+ return -1;
+}
+
+static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
+{
+ ushort subsystem_vendor_id, subsystem_device_id, command;
+ __u32 board_id, scratchpad = 0;
+ __u64 cfg_offset;
+ __u32 cfg_base_addr;
+ __u64 cfg_base_addr_index;
+ int i;
+
+ /* check to see if controller has been disabled */
+ /* BEFORE trying to enable it */
+ (void) pci_read_config_word(pdev, PCI_COMMAND,&command);
+ if(!(command & 0x02))
+ {
+ printk(KERN_WARNING "cciss: controller appears to be disabled\n");
+ return(-1);
+ }
+
+ if (pci_enable_device(pdev))
+ {
+ printk(KERN_ERR "cciss: Unable to Enable PCI device\n");
+ return( -1);
+ }
+ if (pci_set_dma_mask(pdev, CCISS_DMA_MASK ) != 0)
+ {
+ printk(KERN_ERR "cciss: Unable to set DMA mask\n");
+ return(-1);
+ }
+
+ subsystem_vendor_id = pdev->subsystem_vendor;
+ subsystem_device_id = pdev->subsystem_device;
+ board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
+ subsystem_vendor_id);
+
+ /* search for our IO range so we can protect it */
+ for(i=0; i<DEVICE_COUNT_RESOURCE; i++)
+ {
+ /* is this an IO range */
+ if( pci_resource_flags(pdev, i) & 0x01 ) {
+ c->io_mem_addr = pci_resource_start(pdev, i);
+ c->io_mem_length = pci_resource_end(pdev, i) -
+ pci_resource_start(pdev, i) +1;
+#ifdef CCISS_DEBUG
+ printk("IO value found base_addr[%d] %lx %lx\n", i,
+ c->io_mem_addr, c->io_mem_length);
+#endif /* CCISS_DEBUG */
+ /* register the IO range */
+ if(!request_region( c->io_mem_addr,
+ c->io_mem_length, "cciss"))
+ {
+ printk(KERN_WARNING "cciss I/O memory range already in use addr=%lx length=%ld\n",
+ c->io_mem_addr, c->io_mem_length);
+ c->io_mem_addr= 0;
+ c->io_mem_length = 0;
+ }
+ break;
+ }
+ }
+
+#ifdef CCISS_DEBUG
+ printk("command = %x\n", command);
+ printk("irq = %x\n", pdev->irq);
+ printk("board_id = %x\n", board_id);
+#endif /* CCISS_DEBUG */
+
+ c->intr = pdev->irq;
+
+ /*
+ * Memory base addr is first addr , the second points to the config
+ * table
+ */
+
+ c->paddr = pci_resource_start(pdev, 0); /* addressing mode bits already removed */
+#ifdef CCISS_DEBUG
+ printk("address 0 = %x\n", c->paddr);
+#endif /* CCISS_DEBUG */
+ c->vaddr = remap_pci_mem(c->paddr, 200);
+
+ /* Wait for the board to become ready. (PCI hotplug needs this.)
+ * We poll for up to 120 secs, once per 100ms. */
+ for (i=0; i < 1200; i++) {
+ scratchpad = readl(c->vaddr + SA5_SCRATCHPAD_OFFSET);
+ if (scratchpad == CCISS_FIRMWARE_READY)
+ break;
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ / 10); /* wait 100ms */
+ }
+ if (scratchpad != CCISS_FIRMWARE_READY) {
+ printk(KERN_WARNING "cciss: Board not ready. Timed out.\n");
+ return -1;
+ }
+
+ /* get the address index number */
+ cfg_base_addr = readl(c->vaddr + SA5_CTCFG_OFFSET);
+ cfg_base_addr &= (__u32) 0x0000ffff;
+#ifdef CCISS_DEBUG
+ printk("cfg base address = %x\n", cfg_base_addr);
+#endif /* CCISS_DEBUG */
+ cfg_base_addr_index =
+ find_PCI_BAR_index(pdev, cfg_base_addr);
+#ifdef CCISS_DEBUG
+ printk("cfg base address index = %x\n", cfg_base_addr_index);
+#endif /* CCISS_DEBUG */
+ if (cfg_base_addr_index == -1) {
+ printk(KERN_WARNING "cciss: Cannot find cfg_base_addr_index\n");
+ release_io_mem(c);
+ return -1;
+ }
+
+ cfg_offset = readl(c->vaddr + SA5_CTMEM_OFFSET);
+#ifdef CCISS_DEBUG
+ printk("cfg offset = %x\n", cfg_offset);
+#endif /* CCISS_DEBUG */
+ c->cfgtable = remap_pci_mem(pci_resource_start(pdev,
+ cfg_base_addr_index) + 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 %08lx\n",
+ (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 table\n");
+ return -1;
+ }
+
+#ifdef CONFIG_X86
+{
+ /* Need to enable prefetch in the SCSI core for 6400 in x86 */
+ __u32 prefetch;
+ prefetch = readl(&(c->cfgtable->SCSI_Prefetch));
+ prefetch |= 0x100;
+ writel(prefetch, &(c->cfgtable->SCSI_Prefetch));
+}
+#endif
+
+#ifdef CCISS_DEBUG
+ printk("Trying to put board into Simple mode\n");
+#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);
+
+ /* under certain very rare conditions, this can take awhile.
+ * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
+ * as we enter this code.) */
+ for(i=0;i<MAX_CONFIG_WAIT;i++) {
+ if (!(readl(c->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+ break;
+ /* delay and try again */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(10);
+ }
+
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "I counter got to %d %x\n", 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 mode\n");
+ 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;
+ __u32 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 memory\n");
+ 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 memory\n");
+ kfree(ld_buff);
+ return;
+ }
+ inq_buff = kmalloc(sizeof( InquiryData_struct), GFP_KERNEL);
+ if (inq_buff == NULL)
+ {
+ printk(KERN_ERR "cciss: out of memory\n");
+ 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, NULL, TYPE_CMD);
+ 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 controller\n");
+ }
+ /* Get the number of logical volumes */
+ return_code = sendcmd(CISS_REPORT_LOG, cntl_num, ld_buff,
+ sizeof(ReportLunData_struct), 0, 0, 0, NULL, TYPE_CMD);
+
+ if( return_code == IO_OK)
+ {
+#ifdef CCISS_DEBUG
+ printk("LUN Data\n--------------------------\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 failed\n");
+ 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 supported\n",
+ CISS_MAX_LUN);
+ hba[cntl_num]->num_luns = CISS_MAX_LUN;
+ }
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "Length = %x %x %x %x = %d\n", ld_buff->LUNListLength[0],
+ ld_buff->LUNListLength[1], ld_buff->LUNListLength[2],
+ ld_buff->LUNListLength[3], hba[cntl_num]->num_luns);
+#endif /* CCISS_DEBUG */
+
+ hba[cntl_num]->highest_lun = hba[cntl_num]->num_luns-1;
+ 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 = %x\n", 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 */
+ cciss_read_capacity(cntl_num, i, size_buff, 0,
+ &total_size, &block_size);
+ cciss_geometry_inquiry(cntl_num, i, 0, total_size, block_size,
+ inq_buff, &hba[cntl_num]->drv[i]);
+ }
+ kfree(ld_buff);
+ kfree(size_buff);
+ kfree(inq_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)
+{
+ struct gendisk *disk[NWD];
+ int i, n;
+ for (n = 0; n < NWD; n++) {
+ disk[n] = alloc_disk(1 << NWD_SHIFT);
+ if (!disk[n])
+ goto out;
+ }
+
+ for(i=0; i< MAX_CTLR; i++) {
+ if (!hba[i]) {
+ ctlr_info_t *p;
+ p = kmalloc(sizeof(ctlr_info_t), GFP_KERNEL);
+ if (!p)
+ goto Enomem;
+ memset(p, 0, sizeof(ctlr_info_t));
+ for (n = 0; n < NWD; n++)
+ p->gendisk[n] = disk[n];
+ hba[i] = p;
+ return i;
+ }
+ }
+ printk(KERN_WARNING "cciss: This driver supports a maximum"
+ " of %d controllers.\n", MAX_CTLR);
+ goto out;
+Enomem:
+ printk(KERN_ERR "cciss: out of memory.\n");
+out:
+ while (n--)
+ put_disk(disk[n]);
+ return -1;
+}
+
+static void free_hba(int i)
+{
+ ctlr_info_t *p = hba[i];
+ int n;
+
+ hba[i] = NULL;
+ for (n = 0; n < NWD; n++)
+ put_disk(p->gendisk[n]);
+ kfree(p);
+}
+
+/*
+ * 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 __devinit cciss_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ request_queue_t *q;
+ int i;
+ int j;
+ int rc;
+
+ printk(KERN_DEBUG "cciss: Device 0x%x has been found at"
+ " bus %d dev %d func %d\n",
+ pdev->device, pdev->bus->number, PCI_SLOT(pdev->devfn),
+ PCI_FUNC(pdev->devfn));
+ i = alloc_cciss_hba();
+ if(i < 0)
+ return (-1);
+ if (cciss_pci_init(hba[i], pdev) != 0)
+ goto clean1;
+
+ sprintf(hba[i]->devname, "cciss%d", i);
+ hba[i]->ctlr = i;
+ hba[i]->pdev = pdev;
+
+ /* configure PCI DMA stuff */
+ if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL))
+ printk("cciss: using DAC cycles\n");
+ else if (!pci_set_dma_mask(pdev, 0xffffffff))
+ printk("cciss: not using DAC cycles\n");
+ else {
+ printk("cciss: no suitable DMA available\n");
+ goto clean1;
+ }
+
+ /*
+ * register with the major number, or get a dynamic major number
+ * by passing 0 as argument. This is done for greater than
+ * 8 controller support.
+ */
+ if (i < MAX_CTLR_ORIG)
+ hba[i]->major = MAJOR_NR + i;
+ rc = register_blkdev(hba[i]->major, hba[i]->devname);
+ if(rc == -EBUSY || rc == -EINVAL) {
+ printk(KERN_ERR
+ "cciss: Unable to get major number %d for %s "
+ "on hba %d\n", hba[i]->major, hba[i]->devname, i);
+ goto clean1;
+ }
+ else {
+ if (i >= MAX_CTLR_ORIG)
+ hba[i]->major = rc;
+ }
+
+ /* 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 | SA_SAMPLE_RANDOM,
+ hba[i]->devname, hba[i])) {
+ printk(KERN_ERR "cciss: Unable to get irq %d for %s\n",
+ hba[i]->intr, hba[i]->devname);
+ goto clean2;
+ }
+ hba[i]->cmd_pool_bits = kmalloc(((NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG)*sizeof(unsigned long), 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)) {
+ printk( KERN_ERR "cciss: out of memory");
+ goto clean4;
+ }
+
+ spin_lock_init(&hba[i]->lock);
+ q = blk_init_queue(do_cciss_request, &hba[i]->lock);
+ if (!q)
+ goto clean4;
+
+ q->backing_dev_info.ra_pages = READ_AHEAD;
+ hba[i]->queue = q;
+ q->queuedata = hba[i];
+
+ /* 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+BITS_PER_LONG-1)/BITS_PER_LONG)*sizeof(unsigned long));
+
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "Scanning for drives on controller cciss%d\n",i);
+#endif /* CCISS_DEBUG */
+
+ cciss_getgeometry(i);
+
+ cciss_scsi_setup(i);
+
+ /* Turn the interrupts on so we can service requests */
+ hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON);
+
+ cciss_procinit(i);
+
+ blk_queue_bounce_limit(q, hba[i]->pdev->dma_mask);
+
+ /* This is a hardware imposed limit. */
+ blk_queue_max_hw_segments(q, MAXSGENTRIES);
+
+ /* This is a limit in the driver and could be eliminated. */
+ blk_queue_max_phys_segments(q, MAXSGENTRIES);
+
+ blk_queue_max_sectors(q, 512);
+
+
+ for(j=0; j<NWD; j++) {
+ drive_info_struct *drv = &(hba[i]->drv[j]);
+ struct gendisk *disk = hba[i]->gendisk[j];
+
+ sprintf(disk->disk_name, "cciss/c%dd%d", i, j);
+ sprintf(disk->devfs_name, "cciss/host%d/target%d", i, j);
+ disk->major = hba[i]->major;
+ disk->first_minor = j << NWD_SHIFT;
+ disk->fops = &cciss_fops;
+ disk->queue = hba[i]->queue;
+ disk->private_data = drv;
+ /* we must register the controller even if no disks exist */
+ /* this is for the online array utilities */
+ if(!drv->heads && j)
+ continue;
+ blk_queue_hardsect_size(hba[i]->queue, drv->block_size);
+ set_capacity(disk, drv->nr_blocks);
+ add_disk(disk);
+ }
+ return(1);
+
+clean4:
+ 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]);
+clean2:
+ unregister_blkdev(hba[i]->major, hba[i]->devname);
+clean1:
+ release_io_mem(hba[i]);
+ free_hba(i);
+ return(-1);
+}
+
+static void __devexit cciss_remove_one (struct pci_dev *pdev)
+{
+ ctlr_info_t *tmp_ptr;
+ int i, j;
+ char flush_buf[4];
+ int return_code;
+
+ 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 and send the flush cache command */
+ /* sendcmd will turn off interrupt, and send the flush...
+ * To write all data in the battery backed cache to disks */
+ memset(flush_buf, 0, 4);
+ return_code = sendcmd(CCISS_CACHE_FLUSH, i, flush_buf, 4, 0, 0, 0, NULL,
+ TYPE_CMD);
+ if(return_code != IO_OK)
+ {
+ printk(KERN_WARNING "Error Flushing cache on controller %d\n",
+ i);
+ }
+ free_irq(hba[i]->intr, hba[i]);
+ pci_set_drvdata(pdev, NULL);
+ iounmap(hba[i]->vaddr);
+ cciss_unregister_scsi(i); /* unhook from SCSI subsystem */
+ unregister_blkdev(hba[i]->major, hba[i]->devname);
+ remove_proc_entry(hba[i]->devname, proc_cciss);
+
+ /* remove it from the disk list */
+ for (j = 0; j < NWD; j++) {
+ struct gendisk *disk = hba[i]->gendisk[j];
+ if (disk->flags & GENHD_FL_UP)
+ del_gendisk(disk);
+ }
+
+ blk_cleanup_queue(hba[i]->queue);
+ 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);
+ release_io_mem(hba[i]);
+ 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.
+ */
+static int __init cciss_init(void)
+{
+ printk(KERN_INFO DRIVER_NAME "\n");
+
+ /* Register for our PCI devices */
+ return pci_module_init(&cciss_pci_driver);
+}
+
+static void __exit cciss_cleanup(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 %d\n", i);
+ cciss_remove_one(hba[i]->pdev);
+ }
+ }
+ remove_proc_entry("cciss", proc_root_driver);
+}
+
+module_init(cciss_init);
+module_exit(cciss_cleanup);
