diff options
-rw-r--r-- | drivers/block/cciss.c | 3115 |
1 files changed, 1581 insertions, 1534 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 44cf001db271..d5c126d7d427 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -34,7 +34,7 @@ #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> @@ -64,141 +64,147 @@ MODULE_LICENSE("GPL"); /* 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, 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}, {0,} }; + 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 milliseconds) for board to go into simple mode */ -#define MAX_CONFIG_WAIT 30000 +#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, }; /* @@ -206,28 +212,29 @@ static struct block_device_operations cciss_fops = { */ 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 */ @@ -240,23 +247,24 @@ static inline CommandList_struct *removeQ(CommandList_struct **Qptr, #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 @@ -264,35 +272,35 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset, 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; @@ -303,25 +311,26 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset, 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; @@ -330,20 +339,23 @@ cciss_proc_write(struct file *file, const char __user *buffer, 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; } @@ -356,116 +368,113 @@ static void __devinit cciss_procinit(int i) { struct proc_dir_entry *pde; - if (proc_cciss == NULL) { - proc_cciss = proc_mkdir("cciss", proc_root_driver); - if (!proc_cciss) + 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) @@ -483,7 +492,7 @@ static int cciss_open(struct inode *inode, struct file *filep) #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; @@ -496,10 +505,10 @@ static int cciss_open(struct inode *inode, struct file *filep) * 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; @@ -512,6 +521,7 @@ static int cciss_open(struct inode *inode, struct file *filep) host->usage_count++; return 0; } + /* * Close. Sync first. */ @@ -521,8 +531,9 @@ static int cciss_release(struct inode *inode, struct file *filep) 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--; @@ -540,8 +551,10 @@ static int do_ioctl(struct file *f, unsigned cmd, unsigned long arg) 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) { @@ -573,19 +586,26 @@ 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); @@ -594,28 +614,38 @@ static int cciss_ioctl32_passthru(struct file *f, unsigned cmd, unsigned long ar 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); @@ -623,12 +653,14 @@ static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd, unsigned 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; @@ -649,10 +681,10 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo) } /* - * 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; @@ -663,171 +695,193 @@ static int cciss_ioctl(struct inode *inode, struct file *filep, #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; - i |