#include <linux/blkpg.h>
#include <linux/timer.h>
#include <linux/proc_fs.h>
-#include <linux/init.h>
+#include <linux/init.h>
#include <linux/hdreg.h>
#include <linux/spinlock.h>
#include <linux/compat.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_CISSC,
- 0x103c, 0x3223, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC,
- 0x103c, 0x3234, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC,
- 0x103c, 0x3235, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD,
- 0x103c, 0x3211, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD,
- 0x103c, 0x3212, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD,
- 0x103c, 0x3213, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD,
- 0x103c, 0x3214, 0, 0, 0},
- { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD,
- 0x103c, 0x3215, 0, 0, 0},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISS, 0x0E11, 0x4070},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4080},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4082},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4083},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x4091},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409A},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409B},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409C},
+ {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409D},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSA, 0x103C, 0x3225},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3223},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3234},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3235},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3211},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3212},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3213},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3214},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3215},
{0,}
};
-MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
-#define NR_PRODUCTS ARRAY_SIZE(products)
+MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
/* board_id = Subsystem Device ID & Vendor ID
* product = Marketing Name for the board
- * access = Address of the struct of function pointers
+ * 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},
- { 0x3234103C, "Smart Array P400", &SA5_access},
- { 0x3235103C, "Smart Array P400i", &SA5_access},
- { 0x3211103C, "Smart Array E200i", &SA5_access},
- { 0x3212103C, "Smart Array E200", &SA5_access},
- { 0x3213103C, "Smart Array E200i", &SA5_access},
- { 0x3214103C, "Smart Array E200i", &SA5_access},
- { 0x3215103C, "Smart Array E200i", &SA5_access},
+ {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},
+ {0x3234103C, "Smart Array P400", &SA5_access},
+ {0x3235103C, "Smart Array P400i", &SA5_access},
+ {0x3211103C, "Smart Array E200i", &SA5_access},
+ {0x3212103C, "Smart Array E200", &SA5_access},
+ {0x3213103C, "Smart Array E200i", &SA5_access},
+ {0x3214103C, "Smart Array E200i", &SA5_access},
+ {0x3215103C, "Smart Array E200i", &SA5_access},
};
-/* How long to wait (in millesconds) for board to go into simple mode */
-#define MAX_CONFIG_WAIT 30000
+/* How long to wait (in milliseconds) 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 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
-
static ctlr_info_t *hba[MAX_CTLR];
static void do_cciss_request(request_queue_t *q);
static irqreturn_t do_cciss_intr(int irq, void *dev_id, struct pt_regs *regs);
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 cciss_ioctl(struct inode *inode, struct file *filep,
+ unsigned int cmd, unsigned long arg);
static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
static int revalidate_allvol(ctlr_info_t *host);
static int cciss_revalidate(struct gendisk *disk);
static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk);
-static int deregister_disk(struct gendisk *disk, drive_info_struct *drv, int clear_all);
+static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
+ int clear_all);
static void cciss_read_capacity(int ctlr, int logvol, ReadCapdata_struct *buf,
- int withirq, unsigned int *total_size, unsigned int *block_size);
-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 withirq, unsigned int *total_size,
+ unsigned int *block_size);
+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);
static void cciss_getgeometry(int cntl_num);
-static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *, __u32);
-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);
-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);
+static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *,
+ __u32);
+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);
+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);
static void fail_all_cmds(unsigned long ctlr);
#ifdef CONFIG_PROC_FS
-static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
- int length, int *eof, void *data);
+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 */
+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,
- .getgeo = cciss_getgeo,
+static struct block_device_operations cciss_fops = {
+ .owner = THIS_MODULE,
+ .open = cciss_open,
+ .release = cciss_release,
+ .ioctl = cciss_ioctl,
+ .getgeo = cciss_getgeo,
#ifdef CONFIG_COMPAT
- .compat_ioctl = cciss_compat_ioctl,
+ .compat_ioctl = cciss_compat_ioctl,
#endif
- .revalidate_disk= cciss_revalidate,
+ .revalidate_disk = cciss_revalidate,
};
/*
*/
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;
- }
+ 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)
+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;
+ 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 */
#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 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)
+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;
+ 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;
+ sector_t vol_sz, vol_sz_frac;
- ctlr = h->ctlr;
+ 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;
+ 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[SIMPLE_MODE_INT],
- h->num_luns,
- h->Qdepth, h->commands_outstanding,
- h->maxQsinceinit, h->max_outstanding, h->maxSG);
-
- pos += size; len += size;
+ 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[SIMPLE_MODE_INT],
+ 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++) {
+ for (i = 0; i <= h->highest_lun; i++) {
- drv = &h->drv[i];
+ drv = &h->drv[i];
if (drv->heads == 0)
continue;
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;
+ 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;
+ return len;
}
-static int
-cciss_proc_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static int
+cciss_proc_write(struct file *file, const char __user *buffer,
+ unsigned long count, void *data)
{
unsigned char cmd[80];
int len;
int rc;
#endif
- if (count > sizeof(cmd)-1) return -EINVAL;
- if (copy_from_user(cmd, buffer, count)) return -EFAULT;
+ 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')
+ 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.) */
+ 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;
}
{
struct proc_dir_entry *pde;
- if (proc_cciss == NULL) {
- proc_cciss = proc_mkdir("cciss", proc_root_driver);
- if (!proc_cciss)
+ 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 = 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 */
+#endif /* CONFIG_PROC_FS */
-/*
- * For operations that cannot sleep, a command block is allocated at init,
+/*
+ * 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)
+ * 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;
+ 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;
+ 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->cmdindex = -1;
- 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,
+ 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);
+ } 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;
+ c = h->cmd_pool + i;
memset(c, 0, sizeof(CommandList_struct));
- cmd_dma_handle = h->cmd_pool_dhandle
- + i*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++;
+ err_dma_handle = h->errinfo_pool_dhandle
+ + i * sizeof(ErrorInfo_struct);
+ h->nr_allocs++;
c->cmdindex = i;
- }
+ }
c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_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;
-
+ c->ctlr = h->ctlr;
+ return c;
}
-/*
- * Frees a command block that was previously allocated with cmd_alloc().
+/*
+ * 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)
- {
+ 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
- {
+ 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++;
- }
+ 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;
+ return disk->queue->queuedata;
}
static inline drive_info_struct *get_drv(struct gendisk *disk)
#ifdef CCISS_DEBUG
printk(KERN_DEBUG "cciss_open %s\n", inode->i_bdev->bd_disk->disk_name);
-#endif /* CCISS_DEBUG */
+#endif /* CCISS_DEBUG */
if (host->busy_initializing || drv->busy_configuring)
return -EBUSY;
* for "raw controller".
*/
if (drv->nr_blocks == 0) {
- if (iminor(inode) != 0) { /* not node 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;
+ return -ENXIO;
/* if it is, make sure we have a LUN ID */
} else if (drv->LunID == 0) {
return -ENXIO;
host->usage_count++;
return 0;
}
+
/*
* Close. Sync first.
*/
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 */
+ printk(KERN_DEBUG "cciss_release %s\n",
+ inode->i_bdev->bd_disk->disk_name);
+#endif /* CCISS_DEBUG */
drv->usage_count--;
host->usage_count--;
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 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)
{
}
}
-static int cciss_ioctl32_passthru(struct file *f, unsigned cmd, unsigned long arg)
+static int cciss_ioctl32_passthru(struct file *f, unsigned cmd,
+ unsigned long arg)
{
IOCTL32_Command_struct __user *arg32 =
- (IOCTL32_Command_struct __user *) arg;
+ (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 |=
+ 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);
if (err)
return -EFAULT;
- err = do_ioctl(f, CCISS_PASSTHRU, (unsigned long) p);
+ 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));
+ 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)
+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_IOCTL32_Command_struct __user *) arg;
BIG_IOCTL_Command_struct arg64;
- BIG_IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(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 |=
+ 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);
err |= copy_to_user(p, &arg64, sizeof(arg64));
if (err)
- return -EFAULT;
+ return -EFAULT;
- err = do_ioctl(file, CCISS_BIG_PASSTHRU, (unsigned long) p);
+ 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));
+ err |=
+ copy_in_user(&arg32->error_info, &p->error_info,
+ sizeof(arg32->error_info));
if (err)
return -EFAULT;
return err;
}
/*
- * ioctl
+ * ioctl
*/
-static int cciss_ioctl(struct inode *inode, struct file *filep,
- unsigned int cmd, unsigned long arg)
+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;
#ifdef CCISS_DEBUG
printk(KERN_DEBUG "cciss_ioctl: Called with cmd=%x %lx\n", cmd, arg);
-#endif /* CCISS_DEBUG */
-
- switch(cmd) {
+#endif /* CCISS_DEBUG */
+
+ switch (cmd) {
case CCISS_GETPCIINFO:
- {
- cciss_pci_info_struct pciinfo;
-
- if (!arg) return -EINVAL;
- pciinfo.domain = pci_domain_nr(host->pdev->bus);
- 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);
- }
+ {
+ cciss_pci_info_struct pciinfo;
+
+ if (!arg)
+ return -EINVAL;
+ pciinfo.domain = pci_domain_nr(host->pdev->bus);
+ 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);
- }
+ {
+ 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);
+ 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;
}
- 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);
- }
+ {
+ 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);
- }
+ {
+ 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);
- }
+ {
+ 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);
- }
+ {
+ 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;
+ {
+ FirmwareVer_type firmware;
- if (!arg) return -EINVAL;
- memcpy(firmware, host->firm_ver, 4);
+ 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 (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 (!arg)
+ return -EINVAL;
- if (copy_to_user(argp, &DriverVer, sizeof( DriverVer_type) ))
- return -EFAULT;
- return(0);
- }
+ 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;
-
- luninfo.LunID = drv->LunID;
- luninfo.num_opens = drv->usage_count;
- luninfo.num_parts = 0;
- if (copy_to_user(argp, &luninfo,
- sizeof(LogvolInfo_struct)))
- return -EFAULT;
- return(0);
- }
+ return revalidate_allvol(host);
+
+ case CCISS_GETLUNINFO:{
+ LogvolInfo_struct luninfo;
+
+ luninfo.LunID = drv->LunID;
+ luninfo.num_opens = drv->usage_count;
+ luninfo.num_parts = 0;
+ if (copy_to_user(argp, &luninfo,
+ sizeof(LogvolInfo_struct)))
+ return -EFAULT;
+ return 0;
+ }
case CCISS_DEREGDISK:
return rebuild_lun_table(host, disk);
return rebuild_lun_table(host, NULL);
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;
+ IOCTL_Command_struct iocommand;
+ CommandList_struct *c;
+ char *buff = NULL;
+ u64bit temp64;
+ unsigned long flags;
+ DECLARE_COMPLETION(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);
+ if (!arg)
+ return -EINVAL;
- wait_for_completion(&wait);
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
- /* 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);
+ 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
- /* 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);
- }
+ // Fill in Request block
+ c->Request = iocommand.Request;
- 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);
+ // 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;
}
- }
- 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 (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;
}
- if ((ioc->buf_size < 1) &&
- (ioc->Request.Type.Direction != XFER_NONE)) {
+ 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 = kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
- if (!buff) {
- status = -ENOMEM;
- goto cleanup1;
- }
- 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) {
+ }
+ /* 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 =
+ kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
+ if (!buff) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ buff_size = (int *)kmalloc(MAXSGENTRIES * sizeof(int),
+ GFP_KERNEL);
+ if (!buff_size) {
status = -ENOMEM;
goto cleanup1;
}
- if (ioc->Request.Type.Direction == XFER_WRITE) {
- if (copy_from_user(buff[sg_used], data_ptr, sz)) {
+ 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) {
+ if (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 {
- memset(buff[sg_used], 0, sz);
+ c->Header.SGList = 0;
+ c->Header.SGTotal = 0;
}
- 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],
+ 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);
- 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;
+ /* 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];
}
- ptr += buff_size[i];
}
+ cmd_free(host, c, 0);
+ status = 0;
+ cleanup1:
+ if (buff) {
+ for (i = 0; i < sg_used; i++)
+ kfree(buff[i]);
+ kfree(buff);
+ }
+ kfree(buff_size);
+ kfree(ioc);
+ return status;
}
- cmd_free(host, c, 0);
- status = 0;
-cleanup1:
- if (buff) {
- for(i=0; i<sg_used; i++)
- kfree(buff[i]);
- kfree(buff);
- }
- kfree(buff_size);
- kfree(ioc);
- return(status);
- }
default:
return -ENOTTY;
}
-
}
/*
*
* 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
+ * particular 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_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++) {
+ for (i = 0; i < NWD; i++) {
struct gendisk *disk = host->gendisk[i];
if (disk) {
request_queue_t *q = disk->queue;
}
}
- /*
- * 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 */
+ /*
+ * 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]);
set_capacity(disk, drv->nr_blocks);
add_disk(disk);
}
- host->usage_count--;
- return 0;
+ host->usage_count--;
+ return 0;
}
static inline void complete_buffers(struct bio *bio, int status)
bio_endio(bio, nr_sectors << 9, status ? 0 : -EIO);
bio = xbh;
}
-
}
static void cciss_softirq_done(struct request *rq)
/* 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++) {
+ 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(h->pdev, temp64.val, cmd->SG[i].Len, ddir);
#ifdef CCISS_DEBUG
printk("Done with %p\n", rq);
-#endif /* CCISS_DEBUG */
+#endif /* CCISS_DEBUG */
add_disk_randomness(rq->rq_disk);
spin_lock_irqsave(&h->lock, flags);
end_that_request_last(rq, rq->errors);
- cmd_free(h, cmd,1);
+ cmd_free(h, cmd, 1);
spin_unlock_irqrestore(&h->lock, flags);
}
* will always be left registered with the kernel since it is also the
* controller node. Any changes to disk 0 will show up on the next
* reboot.
-*/
+ */
static void cciss_update_drive_info(int ctlr, int drv_index)
- {
+{
ctlr_info_t *h = hba[ctlr];
struct gendisk *disk;
ReadCapdata_struct *size_buff = NULL;
unsigned long flags = 0;
int ret = 0;
- /* if the disk already exists then deregister it before proceeding*/
- if (h->drv[drv_index].raid_level != -1){
+ /* if the disk already exists then deregister it before proceeding */
+ if (h->drv[drv_index].raid_level != -1) {
spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
h->drv[drv_index].busy_configuring = 1;
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
ret = deregister_disk(h->gendisk[drv_index],
- &h->drv[drv_index], 0);
+ &h->drv[drv_index], 0);
h->drv[drv_index].busy_configuring = 0;
}
if (ret)
return;
-
- /* Get information about the disk and modify the driver sturcture */
- size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
- if (size_buff == NULL)
+ /* Get information about the disk and modify the driver structure */
+ size_buff = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
+ if (size_buff == NULL)
goto mem_msg;
- inq_buff = kmalloc(sizeof( InquiryData_struct), GFP_KERNEL);
+ inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
if (inq_buff == NULL)
goto mem_msg;
cciss_read_capacity(ctlr, drv_index, size_buff, 1,
- &total_size, &block_size);
+ &total_size, &block_size);
cciss_geometry_inquiry(ctlr, drv_index, 1, total_size, block_size,
- inq_buff, &h->drv[drv_index]);
+ inq_buff, &h->drv[drv_index]);
++h->num_luns;
disk = h->gendisk[drv_index];
set_capacity(disk, h->drv[drv_index].nr_blocks);
-
/* if it's the controller it's already added */
- if (drv_index){
+ if (drv_index) {
disk->queue = blk_init_queue(do_cciss_request, &h->lock);
/* Set up queue information */
disk->queue->queuedata = hba[ctlr];
blk_queue_hardsect_size(disk->queue,
- hba[ctlr]->drv[drv_index].block_size);
+ hba[ctlr]->drv[drv_index].block_size);
h->drv[drv_index].queue = disk->queue;
add_disk(disk);
}
-freeret:
+ freeret:
kfree(size_buff);
kfree(inq_buff);
return;
-mem_msg:
+ mem_msg:
printk(KERN_ERR "cciss: out of memory\n");
goto freeret;
}
* where new drives will be added. If the index to be returned is greater
* than the highest_lun index for the controller then highest_lun is set
* to this new index. If there are no available indexes then -1 is returned.
-*/
+ */
static int cciss_find_free_drive_index(int ctlr)
{
int i;
- for (i=0; i < CISS_MAX_LUN; i++){
- if (hba[ctlr]->drv[i].raid_level == -1){
+ for (i = 0; i < CISS_MAX_LUN; i++) {
+ if (hba[ctlr]->drv[i].raid_level == -1) {
if (i > hba[ctlr]->highest_lun)
hba[ctlr]->highest_lun = i;
return i;
}
/* This function will add and remove logical drives from the Logical
- * drive array of the controller and maintain persistancy of ordering
+ * drive array of the controller and maintain persistency of ordering
* so that mount points are preserved until the next reboot. This allows
* for the removal of logical drives in the middle of the drive array
* without a re-ordering of those drives.
* h = The controller to perform the operations on
* del_disk = The disk to remove if specified. If the value given
* is NULL then no disk is removed.
-*/
+ */
static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk)
{
int ctlr = h->ctlr;
/* Set busy_configuring flag for this operation */
spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
- if (h->num_luns >= CISS_MAX_LUN){
+ if (h->num_luns >= CISS_MAX_LUN) {
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
return -EINVAL;
}
- if (h->busy_configuring){
+ if (h->busy_configuring) {
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
return -EBUSY;
}
* and update the logical drive table. If it is not NULL then
* we will check if the disk is in use or not.
*/
- if (del_disk != NULL){
+ if (del_disk != NULL) {
drv = get_drv(del_disk);
drv->busy_configuring = 1;
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
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){
- 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 */
+ sizeof(ReportLunData_struct), 0,
+ 0, 0, TYPE_CMD);
+
+ if (return_code == IO_OK) {
+ 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");
+ " command failed\n");
listlength = 0;
goto freeret;
}
num_luns = listlength / 8; /* 8 bytes per entry */
- if (num_luns > CISS_MAX_LUN){
+ if (num_luns > CISS_MAX_LUN) {
num_luns = CISS_MAX_LUN;
printk(KERN_WARNING "cciss: more luns configured"
- " on controller than can be handled by"
- " this driver.\n");
+ " on controller than can be handled by"
+ " this driver.\n");
}
/* Compare controller drive array to drivers drive array.
- * Check for updates in the drive information and any new drives
- * on the controller.
- */
- for (i=0; i < num_luns; i++){
+ * Check for updates in the drive information and any new drives
+ * on the controller.
+ */
+ for (i = 0; i < num_luns; i++) {
int j;
drv_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]);
+ 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]);
/* Find if the LUN is already in the drive array
* of the controller. If so then update its info
* if not is use. If it does not exist then find
* the first free index and add it.
- */
- for (j=0; j <= h->highest_lun; j++){
- if (h->drv[j].LunID == lunid){
+ */
+ for (j = 0; j <= h->highest_lun; j++) {
+ if (h->drv[j].LunID == lunid) {
drv_index = j;
drv_found = 1;
}
}
/* check if the drive was found already in the array */
- if (!drv_found){
+ if (!drv_found) {
drv_index = cciss_find_free_drive_index(ctlr);
if (drv_index == -1)
goto freeret;
}
h->drv[drv_index].LunID = lunid;
cciss_update_drive_info(ctlr, drv_index);
- } /* end for */
- } /* end else */
+ } /* end for */
+ } /* end else */
-freeret:
+ freeret:
kfree(ld_buff);
h->busy_configuring = 0;
/* We return -1 here to tell the ACU that we have registered/updated
* all of the drives that we can and to keep it from calling us
* additional times.
- */
+ */
return -1;
-mem_msg:
+ mem_msg:
printk(KERN_ERR "cciss: out of memory\n");
goto freeret;
}
* clear_all = This flag determines whether or not the disk information
* is going to be completely cleared out and the highest_lun
* reset. Sometimes we want to clear out information about
- * the disk in preperation for re-adding it. In this case
+ * the disk in preparation for re-adding it. In this case
* the highest_lun should be left unchanged and the LunID
* should not be cleared.
*/
return -EPERM;
/* make sure logical volume is NOT is use */
- if(clear_all || (h->gendisk[0] == disk)) {
- if (drv->usage_count > 1)
- return -EBUSY;
- }
- else
- if( drv->usage_count > 0 )
- return -EBUSY;
+ if (clear_all || (h->gendisk[0] == disk)) {
+ if (drv->usage_count > 1)
+ return -EBUSY;
+ } else if (drv->usage_count > 0)
+ return -EBUSY;
/* invalidate the devices and deregister the disk. If it is disk
* zero do not deregister it but just zero out it's values. This
* allows us to delete disk zero but keep the controller registered.
- */
- if (h->gendisk[0] != disk){
+ */
+ if (h->gendisk[0] != disk) {
if (disk) {
request_queue_t *q = disk->queue;
if (disk->flags & GENHD_FL_UP)
drv->raid_level = -1; /* This can be used as a flag variable to
* indicate that this element of the drive
* array is free.
- */
-
- if (clear_all){
- /* 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 (clear_all) {
+ /* 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].heads)
- newhighest = i;
+ newhighest = i;
+ }
+ h->highest_lun = newhighest;
}
- h->highest_lun = newhighest;
- }
- drv->LunID = 0;
+ drv->LunID = 0;
}
- return(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)
+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];
+ 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) {
+ if (buff != NULL) {
c->Header.SGList = 1;
- c->Header.SGTotal= 1;
+ c->Header.SGTotal = 1;
} else {
c->Header.SGList = 0;
- c->Header.SGTotal= 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:
+ 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 */
+ 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;
+ 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);
+ 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) {
+ 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.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;
+ 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
+ /* 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[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;
c->Request.Type.Direction = XFER_READ;
c->Request.Timeout = 0;
c->Request.CDB[0] = cmd;
- break;
+ break;
case CCISS_CACHE_FLUSH:
c->Request.CDBLen = 12;
c->Request.Type.Attribute = ATTR_SIMPLE;
c->Request.Timeout = 0;
c->Request.CDB[0] = BMIC_WRITE;
c->Request.CDB[6] = BMIC_CACHE_FLUSH;
- break;
+ break;
default:
printk(KERN_WARNING
- "cciss%d: Unknown Command 0x%c\n", ctlr, cmd);
- return(IO_ERROR);
+ "cciss%d: Unknown Command 0x%c\n", ctlr, cmd);
+ return IO_ERROR;
}
} else if (cmd_type == TYPE_MSG) {
switch (cmd) {
- case 0: /* ABORT message */
+ case 0: /* ABORT message */
c->Request.CDBLen = 12;
c->Request.Type.Attribute = ATTR_SIMPLE;
c->Request.Type.Direction = XFER_WRITE;
c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd; /* abort */
- c->Request.CDB[1] = 0; /* abort a command */
+ c->Request.CDB[0] = cmd; /* abort */
+ c->Request.CDB[1] = 0; /* abort a command */
/* buff contains the tag of the command to abort */
memcpy(&c->Request.CDB[4], buff, 8);
break;
- case 1: /* RESET message */
+ case 1: /* RESET message */
c->Request.CDBLen = 12;
c->Request.Type.Attribute = ATTR_SIMPLE;
c->Request.Type.Direction = XFER_WRITE;
c->Request.Timeout = 0;
memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
- c->Request.CDB[0] = cmd; /* reset */
- c->Request.CDB[1] = 0x04; /* reset a LUN */
+ c->Request.CDB[0] = cmd; /* reset */
+ c->Request.CDB[1] = 0x04; /* reset a LUN */
case 3: /* No-Op message */
c->Request.CDBLen = 1;
c->Request.Type.Attribute = ATTR_SIMPLE;
break;
default:
printk(KERN_WARNING
- "cciss%d: unknown message type %d\n",
- ctlr, cmd);
+ "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);
+ "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);
+ 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 */
+ 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)
+
+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;
+ u64bit buff_dma_handle;
unsigned long flags;
int return_status;
DECLARE_COMPLETION(wait);
-
- if ((c = cmd_alloc(h , 0)) == NULL)
+
+ 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);
+ log_unit, page_code, NULL, cmd_type);
if (return_status != IO_OK) {
cmd_free(h, c, 0);
return return_status;
}
-resend_cmd2:
+ 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);
- }
+ 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:
+ 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;
+ 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;
+ case CMD_PROTOCOL_ERR:
+ printk(KERN_WARNING "cciss: cmd %p has "
+ "protocol error \n", c);
+ return_status = IO_ERROR;
break;
- case CMD_ABORTED:
- printk(KERN_WARNING "cciss: cmd %p was "
- "aborted\n", c);
- return_status = IO_ERROR;
+ case CMD_HARDWARE_ERR:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ " hardware error\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;
+ case CMD_CONNECTION_LOST:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ "connection lost\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;
+ 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;
- default:
- printk(KERN_WARNING "cciss: cmd %p returned "
- "unknown status %x\n", c,
- c->err_info->CommandStatus);
- return_status = IO_ERROR;
+ 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 */
buff_dma_handle.val32.lower = c->SG[0].Addr.lower;
buff_dma_handle.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single( h->pdev, (dma_addr_t) buff_dma_handle.val,
- c->SG[0].Len, PCI_DMA_BIDIRECTIONAL);
+ pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val,
+ c->SG[0].Len, PCI_DMA_BIDIRECTIONAL);
cmd_free(h, c, 0);
- return(return_status);
-
+ 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 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);
+ 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);
+ sizeof(*inq_buff), 1, logvol, 0xC1, NULL,
+ TYPE_CMD);
if (return_code == IO_OK) {
- if(inq_buff->data_byte[8] == 0xFF) {
+ if (inq_buff->data_byte[8] == 0xFF) {
printk(KERN_WARNING
- "cciss: reading geometry failed, volume "
- "does not support reading geometry\n");
+ "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->sectors = 32; // Sectors per track
drv->cylinders = total_size / 255 / 32;
} else {
unsigned int t;
drv->raid_level = inq_buff->data_byte[8];
t = drv->heads * drv->sectors;
if (t > 1) {
- drv->cylinders = total_size/t;
+ drv->cylinders = total_size / t;
}
}
- } else { /* Get geometry failed */
+ } 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);
+ 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 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);
+ 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);
+ 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 */
+ *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);
+ *total_size, *block_size);
return;
}
ctlr_info_t *h = get_host(disk);
drive_info_struct *drv = get_drv(disk);
int logvol;
- int FOUND=0;
+ 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;
+ for (logvol = 0; logvol < CISS_MAX_LUN; logvol++) {
+ if (h->drv[logvol].LunID == drv->LunID) {
+ FOUND = 1;
break;
}
}
- if (!FOUND) return 1;
+ 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");
+ 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;
- }
+ 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);
+ 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(drv->queue, drv->block_size);
set_capacity(disk, drv->nr_blocks);
if (done == FIFO_EMPTY)
schedule_timeout_uninterruptible(1);
else
- return (done);
+ return done;
}
/* Invalid address to tell caller we ran out of time */
return 1;
static int add_sendcmd_reject(__u8 cmd, int ctlr, unsigned long complete)
{
/* We get in here if sendcmd() is polling for completions
- and gets some command back that it wasn't expecting --
- something other than that which it just sent down.
- Ordinarily, that shouldn't happen, but it can happen when
+ and gets some command back that it wasn't expecting --
+ something other than that which it just sent down.
+ Ordinarily, that shouldn't happen, but it can happen when
the scsi tape stuff gets into error handling mode, and
- starts using sendcmd() to try to abort commands and
+ starts using sendcmd() to try to abort commands and
reset tape drives. In that case, sendcmd may pick up
completions of commands that were sent to logical drives
- through the block i/o system, or cciss ioctls completing, etc.
+ through the block i/o system, or cciss ioctls completing, etc.
In that case, we need to save those completions for later
processing by the interrupt handler.
- */
+ */
#ifdef CONFIG_CISS_SCSI_TAPE
- struct sendcmd_reject_list *srl = &hba[ctlr]->scsi_rejects;
+ struct sendcmd_reject_list *srl = &hba[ctlr]->scsi_rejects;
/* If it's not the scsi tape stuff doing error handling, (abort */
/* or reset) then we don't expect anything weird. */
if (cmd != CCISS_RESET_MSG && cmd != CCISS_ABORT_MSG) {
#endif
- printk( KERN_WARNING "cciss cciss%d: SendCmd "
- "Invalid command list address returned! (%lx)\n",
- ctlr, complete);
+ printk(KERN_WARNING "cciss cciss%d: SendCmd "
+ "Invalid command list address returned! (%lx)\n",
+ ctlr, complete);
/* not much we can do. */
#ifdef CONFIG_CISS_SCSI_TAPE
return 1;
if (srl->ncompletions >= (NR_CMDS + 2)) {
/* Uh oh. No room to save it for later... */
printk(KERN_WARNING "cciss%d: Sendcmd: Invalid command addr, "
- "reject list overflow, command lost!\n", ctlr);
+ "reject list overflow, command lost!\n", ctlr);
return 1;
}
/* Save it for later */
}
/*
- * Send a command to the controller, and wait for it to complete.
- * Only used at init time.
+ * 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)
+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];
+ ctlr_info_t *info_p = hba[ctlr];
u64bit buff_dma_handle;
int status, done = 0;
if ((c = cmd_alloc(info_p, 1)) == NULL) {
printk(KERN_WARNING "cciss: unable to get memory");
- return(IO_ERROR);
+ return IO_ERROR;
}
status = fill_cmd(c, cmd, ctlr, buff, size, use_unit_num,
- log_unit, page_code, scsi3addr, cmd_type);
+ log_unit, page_code, scsi3addr, cmd_type);
if (status != IO_OK) {
cmd_free(info_p, c, 1);
return status;
}
-resend_cmd1:
+ resend_cmd1:
/*
- * Disable interrupt
- */
+ * 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);
-
+#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 */
+ /* Actually it should be completely empty at this time */
/* unless we are in here doing error handling for the scsi */
/* tape side of the driver. */
- for (i = 200000; i > 0; i--)
- {
+ 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);
+ 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);
done = 0;
do {
complete = pollcomplete(ctlr);
#ifdef CCISS_DEBUG
printk(KERN_DEBUG "cciss: command completed\n");
-#endif /* CCISS_DEBUG */
+#endif /* CCISS_DEBUG */
if (complete == 1) {
- printk( KERN_WARNING
- "cciss cciss%d: SendCmd Timeout out, "
- "No command list address returned!\n",
- ctlr);
+ printk(KERN_WARNING
+ "cciss cciss%d: SendCmd Timeout out, "
+ "No command list address returned!\n", ctlr);
status = IO_ERROR;
done = 1;
break;
}
/* This will need to change for direct lookup completions */
- if ( (complete & CISS_ERROR_BIT)
- && (complete & ~CISS_ERROR_BIT) == c->busaddr)
- {
- /* if data overrun or underun on Report command
- ignore it
- */
+ 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)
- ))
- {
+ ((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) {
+ CMD_UNSOLICITED_ABORT) {
printk(KERN_WARNING "cciss%d: "
- "unsolicited abort %p\n",
- ctlr, c);
+ "unsolicited abort %p\n",
+ ctlr, c);
if (c->retry_count < MAX_CMD_RETRIES) {
printk(KERN_WARNING
- "cciss%d: retrying %p\n",
- ctlr, c);
+ "cciss%d: retrying %p\n",
+ ctlr, c);
c->retry_count++;
/* erase the old error */
/* information */
memset(c->err_info, 0,
- sizeof(ErrorInfo_struct));
+ sizeof
+ (ErrorInfo_struct));
goto resend_cmd1;
} else {
printk(KERN_WARNING
- "cciss%d: retried %p too "
- "many times\n", ctlr, c);
+ "cciss%d: retried %p too "
+ "many times\n", ctlr, c);
status = IO_ERROR;
goto cleanup1;
}
- } else if (c->err_info->CommandStatus == CMD_UNABORTABLE) {
- printk(KERN_WARNING "cciss%d: command could not be aborted.\n", ctlr);
+ } else if (c->err_info->CommandStatus ==
+ CMD_UNABORTABLE) {
+ printk(KERN_WARNING
+ "cciss%d: command could not be aborted.\n",
+ ctlr);
status = IO_ERROR;
goto cleanup1;
}
printk(KERN_WARNING "ciss ciss%d: sendcmd"
- " Error %x \n", ctlr,
- c->err_info->CommandStatus);
+ " 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);
+ " 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;
}
}
/* This will need changing for direct lookup completions */
- if (complete != c->busaddr) {
+ if (complete != c->busaddr) {
if (add_sendcmd_reject(cmd, ctlr, complete) != 0) {
- BUG(); /* we are pretty much hosed if we get here. */
+ BUG(); /* we are pretty much hosed if we get here. */
}
continue;
- } else
+ } else
done = 1;
- } while (!done);
-
-cleanup1:
+ } while (!done);
+
+ cleanup1:
/* unlock the data buffer from DMA */
buff_dma_handle.val32.lower = c->SG[0].Addr.lower;
buff_dma_handle.val32.upper = c->SG[0].Addr.upper;
pci_unmap_single(info_p->pdev, (dma_addr_t) buff_dma_handle.val,
- c->SG[0].Len, PCI_DMA_BIDIRECTIONAL);
+ c->SG[0].Len, PCI_DMA_BIDIRECTIONAL);
#ifdef CONFIG_CISS_SCSI_TAPE
/* if we saved some commands for later, process them now. */
if (info_p->scsi_rejects.ncompletions > 0)
do_cciss_intr(0, info_p, NULL);
#endif
cmd_free(info_p, c, 1);
- return (status);
-}
+ 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);
+ 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;
+ 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)
+/*
+ * 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 )
- {
+
+ 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 first entry from the Request Q */
+ /* Get the first entry from the Request Q */
removeQ(&(h->reqQ), c);
h->Qdepth--;
-
- /* Tell the controller execute command */
+
+ /* Tell the controller execute command */
h->access.submit_command(h, c);
-
- /* Put job onto the completed Q */
- addQ (&(h->cmpQ), c);
+
+ /* Put job onto the completed Q */
+ addQ(&(h->cmpQ), c);
}
}
+
/* 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)
+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);
+ addQ(&(h->reqQ), c);
h->Qdepth++;
- if(h->Qdepth > h->maxQsinceinit)
+ 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
+/* checks the status of the job and calls complete buffers to mark all
* buffers for the completed job. Note that this function does not need
* to hold the hba/queue lock.
- */
-static inline void complete_command( ctlr_info_t *h, CommandList_struct *cmd,
- int timeout)
+ */
+static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd,
+ int timeout)
{
int status = 1;
int retry_cmd = 0;
-
+
if (timeout)
- status = 0;
+ status = 0;
- if(cmd->err_info->CommandStatus != 0)
- { /* an error has occurred */
- switch(cmd->err_info->CommandStatus)
- {
+ 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);
+ 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);
+ 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);
+ 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;
+ 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;
+ case CMD_PROTOCOL_ERR:
+ printk(KERN_WARNING "cciss: cmd %p has "
+ "protocol error \n", cmd);
+ status = 0;
break;
- case CMD_ABORTED:
- printk(KERN_WARNING "cciss: cmd %p was "
- "aborted\n", cmd);
- status=0;
+ case CMD_HARDWARE_ERR:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ " hardware error\n", cmd);
+ status = 0;
break;
- case CMD_ABORT_FAILED:
- printk(KERN_WARNING "cciss: cmd %p reports "
- "abort failed\n", cmd);
- status=0;
+ case CMD_CONNECTION_LOST:
+ printk(KERN_WARNING "cciss: cmd %p had "
+ "connection lost\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;
+ 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_TIMEOUT:
- printk(KERN_WARNING "cciss: cmd %p timedout\n",
- cmd);
- status=0;
+ 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;
- default:
- printk(KERN_WARNING "cciss: cmd %p returned "
- "unknown status %x\n", cmd,
- cmd->err_info->CommandStatus);
- status=0;
+ 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);
+ if (retry_cmd) {
+ resend_cciss_cmd(h, cmd);
return;
- }
+ }
cmd->rq->completion_data = cmd;
cmd->rq->errors = status;
blk_complete_request(cmd->rq);
}
-/*
- * Get a request and submit it to the controller.
+/*
+ * Get a request and submit it to the controller.
*/
static void do_cciss_request(request_queue_t *q)
{
- ctlr_info_t *h= q->queuedata;
+ ctlr_info_t *h = q->queuedata;
CommandList_struct *c;
int start_blk, seg;
struct request *creq;
/* 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:
+ queue:
creq = elv_next_request(q);
if (!creq)
goto startio;
BUG_ON(creq->nr_phys_segments > MAXSGENTRIES);
- if (( c = cmd_alloc(h, 1)) == NULL)
+ if ((c = cmd_alloc(h, 1)) == NULL)
goto full;
blkdev_dequeue_request(creq);
c->cmd_type = CMD_RWREQ;
c->rq = creq;
-
- /* fill in the request */
+
+ /* fill in the request */
drv = creq->rq_disk->private_data;
- c->Header.ReplyQueue = 0; // unused in simple mode
+ c->Header.ReplyQueue = 0; // unused in simple mode
/* got command from pool, so use the command block index instead */
/* for direct lookups. */
/* The first 2 bits are reserved for controller error reporting. */
c->Header.Tag.lower = (c->cmdindex << 3);
- c->Header.Tag.lower |= 0x04; /* flag for direct lookup. */
- c->Header.LUN.LogDev.VolId= drv->LunID;
+ c->Header.Tag.lower |= 0x04; /* flag for direct lookup. */
+ 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;
+ 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 */
+ 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 */
+ /* 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++)
- {
+ 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);
+ 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
+ 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;
+ /* 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 */
+ 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[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);
+ addQ(&(h->reqQ), c);
h->Qdepth++;
- if(h->Qdepth > h->maxQsinceinit)
- h->maxQsinceinit = h->Qdepth;
+ if (h->Qdepth > h->maxQsinceinit)
+ h->maxQsinceinit = h->Qdepth;
goto queue;
-full:
+ full:
blk_stop_queue(q);
-startio:
+ startio:
/* We will already have the driver lock here so not need
* to lock it.
- */
+ */
start_io(h);
}
static inline int interrupt_pending(ctlr_info_t *h)
{
#ifdef CONFIG_CISS_SCSI_TAPE
- return ( h->access.intr_pending(h)
+ return (h->access.intr_pending(h)
|| (h->scsi_rejects.ncompletions > 0));
#else
return h->access.intr_pending(h);
static inline long interrupt_not_for_us(ctlr_info_t *h)
{
#ifdef CONFIG_CISS_SCSI_TAPE
- return (((h->access.intr_pending(h) == 0) ||
- (h->interrupts_enabled == 0))
- && (h->scsi_rejects.ncompletions == 0));
+ return (((h->access.intr_pending(h) == 0) ||
+ (h->interrupts_enabled == 0))
+ && (h->scsi_rejects.ncompletions == 0));
#else
- return (((h->access.intr_pending(h) == 0) ||
+ return (((h->access.intr_pending(h) == 0) ||
(h->interrupts_enabled == 0)));
#endif
}
*/
spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
while (interrupt_pending(h)) {
- while((a = get_next_completion(h)) != FIFO_EMPTY) {
+ while ((a = get_next_completion(h)) != FIFO_EMPTY) {
a1 = a;
if ((a & 0x04)) {
a2 = (a >> 3);
if (a2 >= NR_CMDS) {
- printk(KERN_WARNING "cciss: controller cciss%d failed, stopping.\n", h->ctlr);
+ printk(KERN_WARNING
+ "cciss: controller cciss%d failed, stopping.\n",
+ h->ctlr);
fail_all_cmds(h->ctlr);
return IRQ_HANDLED;
}
a = c->busaddr;
} else {
- a &= ~3;
+ a &= ~3;
if ((c = h->cmpQ) == NULL) {
- printk(KERN_WARNING "cciss: Completion of %08x ignored\n", a1);
- continue;
- }
- while(c->busaddr != a) {
- c = c->next;
- if (c == h->cmpQ)
- break;
- }
+ printk(KERN_WARNING
+ "cciss: Completion of %08x ignored\n",
+ 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) {
+ if (c->busaddr == a) {
removeQ(&h->cmpQ, c);
if (c->cmd_type == CMD_RWREQ) {
complete_command(h, c, 0);
}
}
- /* 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.
+ /* 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 < h->highest_lun + 1; j++){
+ 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 < h->highest_lun + 1; j++) {
int curr_queue = (start_queue + j) % (h->highest_lun + 1);
- /* 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->drv[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) % (h->highest_lun + 1);
- goto cleanup;
- } else {
- h->next_to_run = curr_queue;
- goto cleanup;
- }
- } else {
+ /* 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->drv[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) % (h->highest_lun + 1);
+ goto cleanup;
+ } else {
+ h->next_to_run = curr_queue;
+ goto cleanup;
+ }
+ } else {
curr_queue = (curr_queue + 1) % (h->highest_lun + 1);
- }
- }
+ }
+ }
-cleanup:
+ cleanup:
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
return IRQ_HANDLED;
}
-/*
- * We cannot read the structure directly, for portablity we must use
+
+/*
+ * We cannot read the structure directly, for portability we must use
* the io functions.
- * This is for debug only.
+ * This is for debug only.
*/
#ifdef CCISS_DEBUG
-static void print_cfg_table( CfgTable_struct *tb)
+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++)
+ for (i = 0; i < 4; i++)
temp_name[i] = readb(&(tb->Signature[i]));
- temp_name[4]='\0';
- printk(" Signature = %s\n", temp_name);
+ 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++)
+ 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(" Coalesce Interrupt Delay = 0x%x\n",
+ readl(&(tb->HostWrite.CoalIntDelay)));
+ printk(" Coalesce 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)));
+ printk(" Heartbeat Counter = 0x%x\n\n\n", readl(&(tb->HeartBeat)));
}
-#endif /* CCISS_DEBUG */
+#endif /* CCISS_DEBUG */
-static int find_PCI_BAR_index(struct pci_dev *pdev,
- unsigned long pci_bar_addr)
+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? */
+ 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;
+ 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;
+ 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;
+ 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;
+ if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0)
+ return i + 1;
}
return -1;
}
* controllers that are capable. If not, we use IO-APIC mode.
*/
-static void __devinit cciss_interrupt_mode(ctlr_info_t *c, struct pci_dev *pdev, __u32 board_id)
+static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
+ struct pci_dev *pdev, __u32 board_id)
{
#ifdef CONFIG_PCI_MSI
- int err;
- struct msix_entry cciss_msix_entries[4] = {{0,0}, {0,1},
- {0,2}, {0,3}};
+ int err;
+ struct msix_entry cciss_msix_entries[4] = { {0, 0}, {0, 1},
+ {0, 2}, {0, 3}
+ };
/* Some boards advertise MSI but don't really support it */
if ((board_id == 0x40700E11) ||
- (board_id == 0x40800E11) ||
- (board_id == 0x40820E11) ||
- (board_id == 0x40830E11))
+ (board_id == 0x40800E11) ||
+ (board_id == 0x40820E11) || (board_id == 0x40830E11))
goto default_int_mode;
- if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
- err = pci_enable_msix(pdev, cciss_msix_entries, 4);
- if (!err) {
- c->intr[0] = cciss_msix_entries[0].vector;
- c->intr[1] = cciss_msix_entries[1].vector;
- c->intr[2] = cciss_msix_entries[2].vector;
- c->intr[3] = cciss_msix_entries[3].vector;
- c->msix_vector = 1;
- return;
- }
- if (err > 0) {
- printk(KERN_WARNING "cciss: only %d MSI-X vectors "
- "available\n", err);
- } else {
- printk(KERN_WARNING "cciss: MSI-X init failed %d\n",
- err);
- }
- }
- if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
- if (!pci_enable_msi(pdev)) {
- c->intr[SIMPLE_MODE_INT] = pdev->irq;
- c->msi_vector = 1;
- return;
- } else {
- printk(KERN_WARNING "cciss: MSI init failed\n");
- c->intr[SIMPLE_MODE_INT] = pdev->irq;
- return;
- }
- }
-default_int_mode:
-#endif /* CONFIG_PCI_MSI */
+ if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
+ err = pci_enable_msix(pdev, cciss_msix_entries, 4);
+ if (!err) {
+ c->intr[0] = cciss_msix_entries[0].vector;
+ c->intr[1] = cciss_msix_entries[1].vector;
+ c->intr[2] = cciss_msix_entries[2].vector;
+ c->intr[3] = cciss_msix_entries[3].vector;
+ c->msix_vector = 1;
+ return;
+ }
+ if (err > 0) {
+ printk(KERN_WARNING "cciss: only %d MSI-X vectors "
+ "available\n", err);
+ } else {
+ printk(KERN_WARNING "cciss: MSI-X init failed %d\n",
+ err);
+ }
+ }
+ if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
+ if (!pci_enable_msi(pdev)) {
+ c->intr[SIMPLE_MODE_INT] = pdev->irq;
+ c->msi_vector = 1;
+ return;
+ } else {
+ printk(KERN_WARNING "cciss: MSI init failed\n");
+ c->intr[SIMPLE_MODE_INT] = pdev->irq;
+ return;
+ }
+ }
+ default_int_mode:
+#endif /* CONFIG_PCI_MSI */
/* if we get here we're going to use the default interrupt mode */
- c->intr[SIMPLE_MODE_INT] = pdev->irq;
+ c->intr[SIMPLE_MODE_INT] = pdev->irq;
return;
}
/* 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");
+ (void)pci_read_config_word(pdev, PCI_COMMAND, &command);
+ if (!(command & 0x02)) {
+ printk(KERN_WARNING
+ "cciss: controller appears to be disabled\n");
return -ENODEV;
}
err = pci_enable_device(pdev);
- if (err)
- {
+ if (err) {
printk(KERN_ERR "cciss: Unable to Enable PCI device\n");
return err;
}
err = pci_request_regions(pdev, "cciss");
if (err) {
printk(KERN_ERR "cciss: Cannot obtain PCI resources, "
- "aborting\n");
+ "aborting\n");
goto err_out_disable_pdev;
}
subsystem_vendor_id = pdev->subsystem_vendor;
subsystem_device_id = pdev->subsystem_device;
board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
- subsystem_vendor_id);
+ subsystem_vendor_id);
#ifdef CCISS_DEBUG
printk("command = %x\n", command);
printk("irq = %x\n", pdev->irq);
printk("board_id = %x\n", board_id);
-#endif /* CCISS_DEBUG */
+#endif /* CCISS_DEBUG */
/* If the kernel supports MSI/MSI-X we will try to enable that functionality,
* else we use the IO-APIC interrupt assigned to us by system ROM.
/*
* Memory base addr is first addr , the second points to the config
- * table
+ * table
*/
- c->paddr = pci_resource_start(pdev, 0); /* addressing mode bits already removed */
+ 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 */
+#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++) {
+ 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 */
+ schedule_timeout(HZ / 10); /* wait 100ms */
}
if (scratchpad != CCISS_FIRMWARE_READY) {
printk(KERN_WARNING "cciss: Board not ready. Timed out.\n");
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);
+#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 */
+#endif /* CCISS_DEBUG */
if (cfg_base_addr_index == -1) {
printk(KERN_WARNING "cciss: Cannot find cfg_base_addr_index\n");
err = -ENODEV;
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));
+#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 */
+#endif /* CCISS_DEBUG */
- for(i=0; i<NR_PRODUCTS; i++) {
+ for (i = 0; i < ARRAY_SIZE(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) {
+ if (i == ARRAY_SIZE(products)) {
printk(KERN_WARNING "cciss: Sorry, I don't know how"
- " to access the Smart Array controller %08lx\n",
- (unsigned long)board_id);
+ " to access the Smart Array controller %08lx\n",
+ (unsigned long)board_id);
err = -ENODEV;
goto err_out_free_res;
}
- 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') )
- {
+ 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");
err = -ENODEV;
goto err_out_free_res;
}
-
#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));
-}
+ {
+ /* 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 */
+#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);
+ /* 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++) {
+ 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 */
+ 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 */
+ print_cfg_table(c->cfgtable);
+#endif /* CCISS_DEBUG */
- if (!(readl(&(c->cfgtable->TransportActive)) & CFGTBL_Trans_Simple))
- {
+ if (!(readl(&(c->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
printk(KERN_WARNING "cciss: unable to get board into"
- " simple mode\n");
+ " simple mode\n");
err = -ENODEV;
goto err_out_free_res;
}
return 0;
-err_out_free_res:
+ err_out_free_res:
pci_release_regions(pdev);
-err_out_disable_pdev:
+ err_out_disable_pdev:
pci_disable_device(pdev);
return err;
}
-/*
- * Gets information about the local volumes attached to the controller.
- */
+/*
+ * Gets information about the local volumes attached to the controller.
+ */
static void cciss_getgeometry(int cntl_num)
{
ReportLunData_struct *ld_buff;
int listlength = 0;
__u32 lunid = 0;
int block_size;
- int total_size;
+ int total_size;
ld_buff = kzalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
- if (ld_buff == NULL)
- {
+ if (ld_buff == NULL) {
printk(KERN_ERR "cciss: out of memory\n");
return;
}
- size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
- if (size_buff == NULL)
- {
- printk(KERN_ERR "cciss: out of memory\n");
+ 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);
- 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)
- {
+ 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 */
- {
+ } else { /* send command failed */
+
printk(KERN_WARNING "cciss: unable to determine firmware"
- " version of controller\n");
+ " 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);
+ /* 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)
- {
+ 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;
+#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 */
- {
+ } else { /* reading number of logical volumes failed */
+
printk(KERN_WARNING "cciss: report logical volume"
- " command failed\n");
+ " 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 = 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++)
- for(i=0; i < CISS_MAX_LUN; i++)
- {
- if (i < hba[cntl_num]->num_luns){
- 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;
-
+ 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++)
+ for (i = 0; i < CISS_MAX_LUN; i++) {
+ if (i < hba[cntl_num]->num_luns) {
+ 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);
+ 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]);
+ block_size, inq_buff,
+ &hba[cntl_num]->drv[i]);
} else {
/* initialize raid_level to indicate a free space */
hba[cntl_num]->drv[i].raid_level = -1;
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. */
goto out;
}
- for(i=0; i< MAX_CTLR; i++) {
+ for (i = 0; i < MAX_CTLR; i++) {
if (!hba[i]) {
ctlr_info_t *p;
p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL);
}
}
printk(KERN_WARNING "cciss: This driver supports a maximum"
- " of %d controllers.\n", MAX_CTLR);
+ " of %d controllers.\n", MAX_CTLR);
goto out;
-Enomem:
+ Enomem:
printk(KERN_ERR "cciss: out of memory.\n");
-out:
+ out:
while (n--)
put_disk(disk[n]);
return -1;
* returns the number of block devices registered.
*/
static int __devinit cciss_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *ent)
{
request_queue_t *q;
int i;
int dac;
i = alloc_cciss_hba();
- if(i < 0)
- return (-1);
+ if (i < 0)
+ return -1;
hba[i]->busy_initializing = 1;
if (i < MAX_CTLR_ORIG)
hba[i]->major = COMPAQ_CISS_MAJOR + i;
rc = register_blkdev(hba[i]->major, hba[i]->devname);
- if(rc == -EBUSY || rc == -EINVAL) {
+ 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);
+ "cciss: Unable to get major number %d for %s "
+ "on hba %d\n", hba[i]->major, hba[i]->devname, i);
goto clean1;
- }
- else {
+ } 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[SIMPLE_MODE_INT], do_cciss_intr,
- SA_INTERRUPT | SA_SHIRQ, hba[i]->devname, hba[i])) {
+ if (request_irq(hba[i]->intr[SIMPLE_MODE_INT], do_cciss_intr,
+ SA_INTERRUPT | SA_SHIRQ, hba[i]->devname, hba[i])) {
printk(KERN_ERR "cciss: Unable to get irq %d for %s\n",
- hba[i]->intr[SIMPLE_MODE_INT], hba[i]->devname);
+ hba[i]->intr[SIMPLE_MODE_INT], hba[i]->devname);
goto clean2;
}
printk(KERN_INFO "%s: <0x%x> at PCI %s IRQ %d%s using DAC\n",
- hba[i]->devname, pdev->device, pci_name(pdev),
- hba[i]->intr[SIMPLE_MODE_INT], dac ? "" : " not");
-
- 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");
+ hba[i]->devname, pdev->device, pci_name(pdev),
+ hba[i]->intr[SIMPLE_MODE_INT], dac ? "" : " not");
+
+ 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;
}
#ifdef CONFIG_CISS_SCSI_TAPE
- hba[i]->scsi_rejects.complete =
- kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) *
- (NR_CMDS + 5), GFP_KERNEL);
+ hba[i]->scsi_rejects.complete =
+ kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) *
+ (NR_CMDS + 5), GFP_KERNEL);
if (hba[i]->scsi_rejects.complete == NULL) {
- printk( KERN_ERR "cciss: out of memory");
+ printk(KERN_ERR "cciss: out of memory");
goto clean4;
}
#endif
spin_lock_init(&hba[i]->lock);
- /* Initialize the pdev driver private data.
- have it point to 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));
+ /* 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 */
+#ifdef CCISS_DEBUG
+ printk(KERN_DEBUG "Scanning for drives on controller cciss%d\n", i);
+#endif /* CCISS_DEBUG */
cciss_getgeometry(i);
cciss_procinit(i);
hba[i]->busy_initializing = 0;
- for(j=0; j < NWD; j++) { /* mfm */
+ for (j = 0; j < NWD; j++) { /* mfm */
drive_info_struct *drv = &(hba[i]->drv[j]);
struct gendisk *disk = hba[i]->gendisk[j];
q = blk_init_queue(do_cciss_request, &hba[i]->lock);
if (!q) {
printk(KERN_ERR
- "cciss: unable to allocate queue for disk %d\n",
- j);
+ "cciss: unable to allocate queue for disk %d\n",
+ j);
break;
}
drv->queue = q;
disk->driverfs_dev = &pdev->dev;
/* we must register the controller even if no disks exist */
/* this is for the online array utilities */
- if(!drv->heads && j)
+ if (!drv->heads && j)
continue;
blk_queue_hardsect_size(q, drv->block_size);
set_capacity(disk, drv->nr_blocks);
add_disk(disk);
}
- return(1);
+ return 1;
-clean4:
+ clean4:
#ifdef CONFIG_CISS_SCSI_TAPE
kfree(hba[i]->scsi_rejects.complete);
#endif
kfree(hba[i]->cmd_pool_bits);
- if(hba[i]->cmd_pool)
+ 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)
+ 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);
+ NR_CMDS * sizeof(ErrorInfo_struct),
+ hba[i]->errinfo_pool,
+ hba[i]->errinfo_pool_dhandle);
free_irq(hba[i]->intr[SIMPLE_MODE_INT], hba[i]);
-clean2:
+ clean2:
unregister_blkdev(hba[i]->major, hba[i]->devname);
-clean1:
+ clean1:
hba[i]->busy_initializing = 0;
free_hba(i);
- return(-1);
+ return -1;
}
-static void __devexit cciss_remove_one (struct pci_dev *pdev)
+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;
+ int return_code;
- if (pci_get_drvdata(pdev) == NULL)
- {
- printk( KERN_ERR "cciss: Unable to remove device \n");
+ 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)
- {
+ if (hba[i] == NULL) {
printk(KERN_ERR "cciss: device appears to "
- "already be removed \n");
+ "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 */
+ * 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);
+ TYPE_CMD);
+ if (return_code != IO_OK) {
+ printk(KERN_WARNING "Error Flushing cache on controller %d\n",
+ i);
}
free_irq(hba[i]->intr[2], hba[i]);
#ifdef CONFIG_PCI_MSI
- if (hba[i]->msix_vector)
- pci_disable_msix(hba[i]->pdev);
- else if (hba[i]->msi_vector)
- pci_disable_msi(hba[i]->pdev);
-#endif /* CONFIG_PCI_MSI */
+ if (hba[i]->msix_vector)
+ pci_disable_msix(hba[i]->pdev);
+ else if (hba[i]->msi_vector)
+ pci_disable_msi(hba[i]->pdev);
+#endif /* CONFIG_PCI_MSI */
iounmap(hba[i]->vaddr);
- cciss_unregister_scsi(i); /* unhook from SCSI subsystem */
+ 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_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) {
request_queue_t *q = disk->queue;
- if (disk->flags & GENHD_FL_UP)
+ if (disk->flags & GENHD_FL_UP)
del_gendisk(disk);
if (q)
blk_cleanup_queue(q);
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);
+ 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);
#ifdef CONFIG_CISS_SCSI_TAPE
kfree(hba[i]->scsi_rejects.complete);
#endif
- pci_release_regions(pdev);
+ pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
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 */
+ .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.
+ * the OS will call our registered routines when it finds one of our cards.
*/
static int __init cciss_init(void)
{
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)
- {
+ for (i = 0; i < MAX_CTLR; i++) {
+ if (hba[i] != NULL) {
printk(KERN_WARNING "cciss: had to remove"
- " controller %d\n", i);
+ " controller %d\n", i);
cciss_remove_one(hba[i]->pdev);
}
}
unsigned long flags;
printk(KERN_WARNING "cciss%d: controller not responding.\n", h->ctlr);
- h->alive = 0; /* the controller apparently died... */
+ h->alive = 0; /* the controller apparently died... */
spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
- pci_disable_device(h->pdev); /* Make sure it is really dead. */
+ pci_disable_device(h->pdev); /* Make sure it is really dead. */
/* move everything off the request queue onto the completed queue */
- while( (c = h->reqQ) != NULL ) {
+ while ((c = h->reqQ) != NULL) {
removeQ(&(h->reqQ), c);
h->Qdepth--;
- addQ (&(h->cmpQ), c);
+ addQ(&(h->cmpQ), c);
}
/* Now, fail everything on the completed queue with a HW error */
- while( (c = h->cmpQ) != NULL ) {
+ while ((c = h->cmpQ) != NULL) {
removeQ(&h->cmpQ, c);
c->err_info->CommandStatus = CMD_HARDWARE_ERR;
if (c->cmd_type == CMD_RWREQ) {
} 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, 0);
+ else if (c->cmd_type == CMD_SCSI)
+ complete_scsi_command(c, 0, 0);
#endif
}
spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
git.samba.org / sfrench / cifs-2.6.git / blobdiff