From: Stephen M. Cameron Date: Mon, 19 Jul 2010 18:46:38 +0000 (-0500) Subject: cciss: use consistent variable names X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f70dba83669bf718c2f1731f0f58b8149e883593;p=mv-sheeva.git cciss: use consistent variable names cciss: use consistent variable names "h", for the hba structure and "c" for the command structures. and get rid of trivial CCISS_LOCK macro. Signed-off-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 2abe6df9445..70ad24f3604 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -191,17 +191,17 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time, int via_ioctl); static int deregister_disk(ctlr_info_t *h, int drv_index, int clear_all, int via_ioctl); -static void cciss_read_capacity(int ctlr, int logvol, +static void cciss_read_capacity(ctlr_info_t *h, int logvol, sector_t *total_size, unsigned int *block_size); -static void cciss_read_capacity_16(int ctlr, int logvol, +static void cciss_read_capacity_16(ctlr_info_t *h, int logvol, sector_t *total_size, unsigned int *block_size); -static void cciss_geometry_inquiry(int ctlr, int logvol, +static void cciss_geometry_inquiry(ctlr_info_t *h, int logvol, sector_t total_size, unsigned int block_size, InquiryData_struct *inq_buff, drive_info_struct *drv); static void __devinit cciss_interrupt_mode(ctlr_info_t *); static void start_io(ctlr_info_t *h); -static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, +static int sendcmd_withirq(ctlr_info_t *h, __u8 cmd, void *buff, size_t size, __u8 page_code, unsigned char scsi3addr[], int cmd_type); static int sendcmd_withirq_core(ctlr_info_t *h, CommandList_struct *c, @@ -229,9 +229,9 @@ static void calc_bucket_map(int *bucket, int num_buckets, int nsgs, static void cciss_put_controller_into_performant_mode(ctlr_info_t *h); #ifdef CONFIG_PROC_FS -static void cciss_procinit(int i); +static void cciss_procinit(ctlr_info_t *h); #else -static void cciss_procinit(int i) +static void cciss_procinit(ctlr_info_t *h) { } #endif /* CONFIG_PROC_FS */ @@ -416,26 +416,25 @@ static void cciss_seq_show_header(struct seq_file *seq) h->maxQsinceinit, h->max_outstanding, h->maxSG); #ifdef CONFIG_CISS_SCSI_TAPE - cciss_seq_tape_report(seq, h->ctlr); + cciss_seq_tape_report(seq, h); #endif /* CONFIG_CISS_SCSI_TAPE */ } static void *cciss_seq_start(struct seq_file *seq, loff_t *pos) { ctlr_info_t *h = seq->private; - unsigned ctlr = h->ctlr; unsigned long flags; /* prevent displaying bogus info during configuration * or deconfiguration of a logical volume */ - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) { - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return ERR_PTR(-EBUSY); } h->busy_configuring = 1; - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (*pos == 0) cciss_seq_show_header(seq); @@ -543,7 +542,7 @@ cciss_proc_write(struct file *file, const char __user *buf, struct seq_file *seq = file->private_data; ctlr_info_t *h = seq->private; - err = cciss_engage_scsi(h->ctlr); + err = cciss_engage_scsi(h); if (err == 0) err = length; } else @@ -566,7 +565,7 @@ static const struct file_operations cciss_proc_fops = { .write = cciss_proc_write, }; -static void __devinit cciss_procinit(int i) +static void __devinit cciss_procinit(ctlr_info_t *h) { struct proc_dir_entry *pde; @@ -574,9 +573,9 @@ static void __devinit cciss_procinit(int i) proc_cciss = proc_mkdir("driver/cciss", NULL); if (!proc_cciss) return; - pde = proc_create_data(hba[i]->devname, S_IWUSR | S_IRUSR | S_IRGRP | + pde = proc_create_data(h->devname, S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH, proc_cciss, - &cciss_proc_fops, hba[i]); + &cciss_proc_fops, h); } #endif /* CONFIG_PROC_FS */ @@ -609,12 +608,12 @@ static ssize_t dev_show_unique_id(struct device *dev, unsigned long flags; int ret = 0; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) ret = -EBUSY; else memcpy(sn, drv->serial_no, sizeof(sn)); - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (ret) return ret; @@ -639,12 +638,12 @@ static ssize_t dev_show_vendor(struct device *dev, unsigned long flags; int ret = 0; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) ret = -EBUSY; else memcpy(vendor, drv->vendor, VENDOR_LEN + 1); - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (ret) return ret; @@ -663,12 +662,12 @@ static ssize_t dev_show_model(struct device *dev, unsigned long flags; int ret = 0; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) ret = -EBUSY; else memcpy(model, drv->model, MODEL_LEN + 1); - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (ret) return ret; @@ -687,12 +686,12 @@ static ssize_t dev_show_rev(struct device *dev, unsigned long flags; int ret = 0; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) ret = -EBUSY; else memcpy(rev, drv->rev, REV_LEN + 1); - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (ret) return ret; @@ -709,17 +708,17 @@ static ssize_t cciss_show_lunid(struct device *dev, unsigned long flags; unsigned char lunid[8]; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) { - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return -EBUSY; } if (!drv->heads) { - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return -ENOTTY; } memcpy(lunid, drv->LunID, sizeof(lunid)); - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return snprintf(buf, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", lunid[0], lunid[1], lunid[2], lunid[3], lunid[4], lunid[5], lunid[6], lunid[7]); @@ -734,13 +733,13 @@ static ssize_t cciss_show_raid_level(struct device *dev, int raid; unsigned long flags; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) { - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return -EBUSY; } raid = drv->raid_level; - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (raid < 0 || raid > RAID_UNKNOWN) raid = RAID_UNKNOWN; @@ -757,13 +756,13 @@ static ssize_t cciss_show_usage_count(struct device *dev, unsigned long flags; int count; - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) { - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return -EBUSY; } count = drv->usage_count; - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return snprintf(buf, 20, "%d\n", count); } static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL); @@ -1012,7 +1011,7 @@ static inline drive_info_struct *get_drv(struct gendisk *disk) */ static int cciss_open(struct block_device *bdev, fmode_t mode) { - ctlr_info_t *host = get_host(bdev->bd_disk); + ctlr_info_t *h = get_host(bdev->bd_disk); drive_info_struct *drv = get_drv(bdev->bd_disk); #ifdef CCISS_DEBUG @@ -1044,7 +1043,7 @@ static int cciss_open(struct block_device *bdev, fmode_t mode) return -EPERM; } drv->usage_count++; - host->usage_count++; + h->usage_count++; return 0; } @@ -1064,11 +1063,11 @@ static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode) */ static int cciss_release(struct gendisk *disk, fmode_t mode) { - ctlr_info_t *host; + ctlr_info_t *h; drive_info_struct *drv; lock_kernel(); - host = get_host(disk); + h = get_host(disk); drv = get_drv(disk); #ifdef CCISS_DEBUG @@ -1076,7 +1075,7 @@ static int cciss_release(struct gendisk *disk, fmode_t mode) #endif /* CCISS_DEBUG */ drv->usage_count--; - host->usage_count--; + h->usage_count--; unlock_kernel(); return 0; } @@ -1223,11 +1222,11 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo) return 0; } -static void check_ioctl_unit_attention(ctlr_info_t *host, CommandList_struct *c) +static void check_ioctl_unit_attention(ctlr_info_t *h, CommandList_struct *c) { if (c->err_info->CommandStatus == CMD_TARGET_STATUS && c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) - (void)check_for_unit_attention(host, c); + (void)check_for_unit_attention(h, c); } /* * ioctl @@ -1236,9 +1235,8 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg) { struct gendisk *disk = bdev->bd_disk; - ctlr_info_t *host = get_host(disk); + ctlr_info_t *h = get_host(disk); drive_info_struct *drv = get_drv(disk); - int ctlr = host->ctlr; void __user *argp = (void __user *)arg; #ifdef CCISS_DEBUG @@ -1252,10 +1250,10 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, 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; + pciinfo.domain = pci_domain_nr(h->pdev->bus); + pciinfo.bus = h->pdev->bus->number; + pciinfo.dev_fn = h->pdev->devfn; + pciinfo.board_id = h->board_id; if (copy_to_user (argp, &pciinfo, sizeof(cciss_pci_info_struct))) return -EFAULT; @@ -1267,9 +1265,9 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (!arg) return -EINVAL; intinfo.delay = - readl(&host->cfgtable->HostWrite.CoalIntDelay); + readl(&h->cfgtable->HostWrite.CoalIntDelay); intinfo.count = - readl(&host->cfgtable->HostWrite.CoalIntCount); + readl(&h->cfgtable->HostWrite.CoalIntCount); if (copy_to_user (argp, &intinfo, sizeof(cciss_coalint_struct))) return -EFAULT; @@ -1293,22 +1291,22 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, // printk("cciss_ioctl: delay and count cannot be 0\n"); return -EINVAL; } - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); + spin_lock_irqsave(&h->lock, flags); /* Update the field, and then ring the doorbell */ writel(intinfo.delay, - &(host->cfgtable->HostWrite.CoalIntDelay)); + &(h->cfgtable->HostWrite.CoalIntDelay)); writel(intinfo.count, - &(host->cfgtable->HostWrite.CoalIntCount)); - writel(CFGTBL_ChangeReq, host->vaddr + SA5_DOORBELL); + &(h->cfgtable->HostWrite.CoalIntCount)); + writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) { - if (!(readl(host->vaddr + SA5_DOORBELL) + if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq)) break; /* delay and try again */ udelay(1000); } - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (i >= MAX_IOCTL_CONFIG_WAIT) return -EAGAIN; return 0; @@ -1322,7 +1320,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, return -EINVAL; for (i = 0; i < 16; i++) NodeName[i] = - readb(&host->cfgtable->ServerName[i]); + readb(&h->cfgtable->ServerName[i]); if (copy_to_user(argp, NodeName, sizeof(NodeName_type))) return -EFAULT; return 0; @@ -1342,23 +1340,23 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, (NodeName, argp, sizeof(NodeName_type))) return -EFAULT; - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); + spin_lock_irqsave(&h->lock, flags); /* Update the field, and then ring the doorbell */ for (i = 0; i < 16; i++) writeb(NodeName[i], - &host->cfgtable->ServerName[i]); + &h->cfgtable->ServerName[i]); - writel(CFGTBL_ChangeReq, host->vaddr + SA5_DOORBELL); + writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) { - if (!(readl(host->vaddr + SA5_DOORBELL) + if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq)) break; /* delay and try again */ udelay(1000); } - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); if (i >= MAX_IOCTL_CONFIG_WAIT) return -EAGAIN; return 0; @@ -1370,7 +1368,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (!arg) return -EINVAL; - heartbeat = readl(&host->cfgtable->HeartBeat); + heartbeat = readl(&h->cfgtable->HeartBeat); if (copy_to_user (argp, &heartbeat, sizeof(Heartbeat_type))) return -EFAULT; @@ -1382,7 +1380,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (!arg) return -EINVAL; - BusTypes = readl(&host->cfgtable->BusTypes); + BusTypes = readl(&h->cfgtable->BusTypes); if (copy_to_user (argp, &BusTypes, sizeof(BusTypes_type))) return -EFAULT; @@ -1394,7 +1392,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (!arg) return -EINVAL; - memcpy(firmware, host->firm_ver, 4); + memcpy(firmware, h->firm_ver, 4); if (copy_to_user (argp, firmware, sizeof(FirmwareVer_type))) @@ -1417,7 +1415,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, case CCISS_DEREGDISK: case CCISS_REGNEWD: case CCISS_REVALIDVOLS: - return rebuild_lun_table(host, 0, 1); + return rebuild_lun_table(h, 0, 1); case CCISS_GETLUNINFO:{ LogvolInfo_struct luninfo; @@ -1472,7 +1470,8 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, } else { memset(buff, 0, iocommand.buf_size); } - if ((c = cmd_alloc(host, 0)) == NULL) { + c = cmd_alloc(h, 0); + if (!c) { kfree(buff); return -ENOMEM; } @@ -1498,7 +1497,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, /* Fill in the scatter gather information */ if (iocommand.buf_size > 0) { - temp64.val = pci_map_single(host->pdev, buff, + temp64.val = pci_map_single(h->pdev, buff, iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); c->SG[0].Addr.lower = temp64.val32.lower; @@ -1508,24 +1507,24 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, } c->waiting = &wait; - enqueue_cmd_and_start_io(host, c); + enqueue_cmd_and_start_io(h, c); 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, + pci_unmap_single(h->pdev, (dma_addr_t) temp64.val, iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); - check_ioctl_unit_attention(host, c); + check_ioctl_unit_attention(h, c); /* 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); + cmd_free(h, c, 0); return -EFAULT; } @@ -1534,12 +1533,12 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (copy_to_user (iocommand.buf, buff, iocommand.buf_size)) { kfree(buff); - cmd_free(host, c, 0); + cmd_free(h, c, 0); return -EFAULT; } } kfree(buff); - cmd_free(host, c, 0); + cmd_free(h, c, 0); return 0; } case CCISS_BIG_PASSTHRU:{ @@ -1621,7 +1620,8 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, data_ptr += sz; sg_used++; } - if ((c = cmd_alloc(host, 0)) == NULL) { + c = cmd_alloc(h, 0); + if (!c) { status = -ENOMEM; goto cleanup1; } @@ -1642,7 +1642,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, if (ioc->buf_size > 0) { for (i = 0; i < sg_used; i++) { temp64.val = - pci_map_single(host->pdev, buff[i], + pci_map_single(h->pdev, buff[i], buff_size[i], PCI_DMA_BIDIRECTIONAL); c->SG[i].Addr.lower = @@ -1654,21 +1654,21 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, } } c->waiting = &wait; - enqueue_cmd_and_start_io(host, c); + enqueue_cmd_and_start_io(h, c); 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, + pci_unmap_single(h->pdev, (dma_addr_t) temp64.val, buff_size[i], PCI_DMA_BIDIRECTIONAL); } - check_ioctl_unit_attention(host, c); + check_ioctl_unit_attention(h, c); /* Copy the error information out */ ioc->error_info = *(c->err_info); if (copy_to_user(argp, ioc, sizeof(*ioc))) { - cmd_free(host, c, 0); + cmd_free(h, c, 0); status = -EFAULT; goto cleanup1; } @@ -1678,14 +1678,14 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, for (i = 0; i < sg_used; i++) { if (copy_to_user (ptr, buff[i], buff_size[i])) { - cmd_free(host, c, 0); + cmd_free(h, c, 0); status = -EFAULT; goto cleanup1; } ptr += buff_size[i]; } } - cmd_free(host, c, 0); + cmd_free(h, c, 0); status = 0; cleanup1: if (buff) { @@ -1773,26 +1773,26 @@ static void cciss_check_queues(ctlr_info_t *h) static void cciss_softirq_done(struct request *rq) { - CommandList_struct *cmd = rq->completion_data; - ctlr_info_t *h = hba[cmd->ctlr]; - SGDescriptor_struct *curr_sg = cmd->SG; + CommandList_struct *c = rq->completion_data; + ctlr_info_t *h = hba[c->ctlr]; + SGDescriptor_struct *curr_sg = c->SG; u64bit temp64; unsigned long flags; int i, ddir; int sg_index = 0; - if (cmd->Request.Type.Direction == XFER_READ) + if (c->Request.Type.Direction == XFER_READ) ddir = PCI_DMA_FROMDEVICE; else ddir = PCI_DMA_TODEVICE; /* 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 < c->Header.SGList; i++) { if (curr_sg[sg_index].Ext == CCISS_SG_CHAIN) { - cciss_unmap_sg_chain_block(h, cmd); + cciss_unmap_sg_chain_block(h, c); /* Point to the next block */ - curr_sg = h->cmd_sg_list[cmd->cmdindex]; + curr_sg = h->cmd_sg_list[c->cmdindex]; sg_index = 0; } temp64.val32.lower = curr_sg[sg_index].Addr.lower; @@ -1808,12 +1808,12 @@ static void cciss_softirq_done(struct request *rq) /* set the residual count for pc requests */ if (rq->cmd_type == REQ_TYPE_BLOCK_PC) - rq->resid_len = cmd->err_info->ResidualCnt; + rq->resid_len = c->err_info->ResidualCnt; blk_end_request_all(rq, (rq->errors == 0) ? 0 : -EIO); spin_lock_irqsave(&h->lock, flags); - cmd_free(h, cmd, 1); + cmd_free(h, c, 1); cciss_check_queues(h); spin_unlock_irqrestore(&h->lock, flags); } @@ -1829,7 +1829,7 @@ static inline void log_unit_to_scsi3addr(ctlr_info_t *h, * via the inquiry page 0. Model, vendor, and rev are set to empty strings if * they cannot be read. */ -static void cciss_get_device_descr(int ctlr, int logvol, +static void cciss_get_device_descr(ctlr_info_t *h, int logvol, char *vendor, char *model, char *rev) { int rc; @@ -1844,8 +1844,8 @@ static void cciss_get_device_descr(int ctlr, int logvol, if (!inq_buf) return; - log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); - rc = sendcmd_withirq(CISS_INQUIRY, ctlr, inq_buf, sizeof(*inq_buf), 0, + log_unit_to_scsi3addr(h, scsi3addr, logvol); + rc = sendcmd_withirq(h, CISS_INQUIRY, inq_buf, sizeof(*inq_buf), 0, scsi3addr, TYPE_CMD); if (rc == IO_OK) { memcpy(vendor, &inq_buf->data_byte[8], VENDOR_LEN); @@ -1865,7 +1865,7 @@ static void cciss_get_device_descr(int ctlr, int logvol, * number cannot be had, for whatever reason, 16 bytes of 0xff * are returned instead. */ -static void cciss_get_serial_no(int ctlr, int logvol, +static void cciss_get_serial_no(ctlr_info_t *h, int logvol, unsigned char *serial_no, int buflen) { #define PAGE_83_INQ_BYTES 64 @@ -1880,8 +1880,8 @@ static void cciss_get_serial_no(int ctlr, int logvol, if (!buf) return; memset(serial_no, 0, buflen); - log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); - rc = sendcmd_withirq(CISS_INQUIRY, ctlr, buf, + log_unit_to_scsi3addr(h, scsi3addr, logvol); + rc = sendcmd_withirq(h, CISS_INQUIRY, buf, PAGE_83_INQ_BYTES, 0x83, scsi3addr, TYPE_CMD); if (rc == IO_OK) memcpy(serial_no, &buf[8], buflen); @@ -1947,10 +1947,9 @@ init_queue_failure: * 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, int first_time, - int via_ioctl) +static void cciss_update_drive_info(ctlr_info_t *h, int drv_index, + int first_time, int via_ioctl) { - ctlr_info_t *h = hba[ctlr]; struct gendisk *disk; InquiryData_struct *inq_buff = NULL; unsigned int block_size; @@ -1967,16 +1966,16 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time, /* testing to see if 16-byte CDBs are already being used */ if (h->cciss_read == CCISS_READ_16) { - cciss_read_capacity_16(h->ctlr, drv_index, + cciss_read_capacity_16(h, drv_index, &total_size, &block_size); } else { - cciss_read_capacity(ctlr, drv_index, &total_size, &block_size); + cciss_read_capacity(h, drv_index, &total_size, &block_size); /* if read_capacity returns all F's this volume is >2TB */ /* in size so we switch to 16-byte CDB's for all */ /* read/write ops */ if (total_size == 0xFFFFFFFFULL) { - cciss_read_capacity_16(ctlr, drv_index, + cciss_read_capacity_16(h, drv_index, &total_size, &block_size); h->cciss_read = CCISS_READ_16; h->cciss_write = CCISS_WRITE_16; @@ -1986,14 +1985,14 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time, } } - cciss_geometry_inquiry(ctlr, drv_index, total_size, block_size, + cciss_geometry_inquiry(h, drv_index, total_size, block_size, inq_buff, drvinfo); drvinfo->block_size = block_size; drvinfo->nr_blocks = total_size + 1; - cciss_get_device_descr(ctlr, drv_index, drvinfo->vendor, + cciss_get_device_descr(h, drv_index, drvinfo->vendor, drvinfo->model, drvinfo->rev); - cciss_get_serial_no(ctlr, drv_index, drvinfo->serial_no, + cciss_get_serial_no(h, drv_index, drvinfo->serial_no, sizeof(drvinfo->serial_no)); /* Save the lunid in case we deregister the disk, below. */ memcpy(drvinfo->LunID, h->drv[drv_index]->LunID, @@ -2019,9 +2018,9 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time, */ if (h->drv[drv_index]->raid_level != -1 && drv_index != 0) { printk(KERN_WARNING "disk %d has changed.\n", drv_index); - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); h->drv[drv_index]->busy_configuring = 1; - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); /* deregister_disk sets h->drv[drv_index]->queue = NULL * which keeps the interrupt handler from starting @@ -2243,7 +2242,6 @@ error: static int rebuild_lun_table(ctlr_info_t *h, int first_time, int via_ioctl) { - int ctlr = h->ctlr; int num_luns; ReportLunData_struct *ld_buff = NULL; int return_code; @@ -2258,19 +2256,19 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time, return -EPERM; /* Set busy_configuring flag for this operation */ - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); if (h->busy_configuring) { - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return -EBUSY; } h->busy_configuring = 1; - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); ld_buff = kzalloc(sizeof(ReportLunData_struct), GFP_KERNEL); if (ld_buff == NULL) goto mem_msg; - return_code = sendcmd_withirq(CISS_REPORT_LOG, ctlr, ld_buff, + return_code = sendcmd_withirq(h, CISS_REPORT_LOG, ld_buff, sizeof(ReportLunData_struct), 0, CTLR_LUNID, TYPE_CMD); @@ -2317,9 +2315,9 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time, } if (!drv_found) { /* Deregister it from the OS, it's gone. */ - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); h->drv[i]->busy_configuring = 1; - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return_code = deregister_disk(h, i, 1, via_ioctl); if (h->drv[i] != NULL) h->drv[i]->busy_configuring = 0; @@ -2358,8 +2356,7 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time, if (drv_index == -1) goto freeret; } - cciss_update_drive_info(ctlr, drv_index, first_time, - via_ioctl); + cciss_update_drive_info(h, drv_index, first_time, via_ioctl); } /* end for */ freeret: @@ -2491,11 +2488,10 @@ static int deregister_disk(ctlr_info_t *h, int drv_index, return 0; } -static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, +static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr, int cmd_type) { - ctlr_info_t *h = hba[ctlr]; u64bit buff_dma_handle; int status = IO_OK; @@ -2580,7 +2576,8 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, break; default: printk(KERN_WARNING - "cciss%d: Unknown Command 0x%c\n", ctlr, cmd); + "cciss%d: Unknown Command 0x%c\n", + h->ctlr, cmd); return IO_ERROR; } } else if (cmd_type == TYPE_MSG) { @@ -2613,12 +2610,13 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, break; default: printk(KERN_WARNING - "cciss%d: unknown message type %d\n", ctlr, cmd); + "cciss%d: unknown message type %d\n", + h->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", h->ctlr, cmd_type); return IO_ERROR; } /* Fill in the scatter gather information */ @@ -2760,18 +2758,17 @@ command_done: return return_status; } -static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, +static int sendcmd_withirq(ctlr_info_t *h, __u8 cmd, void *buff, size_t size, __u8 page_code, unsigned char scsi3addr[], int cmd_type) { - ctlr_info_t *h = hba[ctlr]; CommandList_struct *c; int return_status; c = cmd_alloc(h, 0); if (!c) return -ENOMEM; - return_status = fill_cmd(c, cmd, ctlr, buff, size, page_code, + return_status = fill_cmd(h, c, cmd, buff, size, page_code, scsi3addr, cmd_type); if (return_status == IO_OK) return_status = sendcmd_withirq_core(h, c, 1); @@ -2780,7 +2777,7 @@ static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, return return_status; } -static void cciss_geometry_inquiry(int ctlr, int logvol, +static void cciss_geometry_inquiry(ctlr_info_t *h, int logvol, sector_t total_size, unsigned int block_size, InquiryData_struct *inq_buff, @@ -2791,8 +2788,8 @@ static void cciss_geometry_inquiry(int ctlr, int logvol, unsigned char scsi3addr[8]; memset(inq_buff, 0, sizeof(InquiryData_struct)); - log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); - return_code = sendcmd_withirq(CISS_INQUIRY, ctlr, inq_buff, + log_unit_to_scsi3addr(h, scsi3addr, logvol); + return_code = sendcmd_withirq(h, CISS_INQUIRY, inq_buff, sizeof(*inq_buff), 0xC1, scsi3addr, TYPE_CMD); if (return_code == IO_OK) { if (inq_buff->data_byte[8] == 0xFF) { @@ -2826,7 +2823,7 @@ static void cciss_geometry_inquiry(int ctlr, int logvol, } static void -cciss_read_capacity(int ctlr, int logvol, sector_t *total_size, +cciss_read_capacity(ctlr_info_t *h, int logvol, sector_t *total_size, unsigned int *block_size) { ReadCapdata_struct *buf; @@ -2839,8 +2836,8 @@ cciss_read_capacity(int ctlr, int logvol, sector_t *total_size, return; } - log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); - return_code = sendcmd_withirq(CCISS_READ_CAPACITY, ctlr, buf, + log_unit_to_scsi3addr(h, scsi3addr, logvol); + return_code = sendcmd_withirq(h, CCISS_READ_CAPACITY, buf, sizeof(ReadCapdata_struct), 0, scsi3addr, TYPE_CMD); if (return_code == IO_OK) { *total_size = be32_to_cpu(*(__be32 *) buf->total_size); @@ -2853,7 +2850,7 @@ cciss_read_capacity(int ctlr, int logvol, sector_t *total_size, kfree(buf); } -static void cciss_read_capacity_16(int ctlr, int logvol, +static void cciss_read_capacity_16(ctlr_info_t *h, int logvol, sector_t *total_size, unsigned int *block_size) { ReadCapdata_struct_16 *buf; @@ -2866,9 +2863,9 @@ static void cciss_read_capacity_16(int ctlr, int logvol, return; } - log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); - return_code = sendcmd_withirq(CCISS_READ_CAPACITY_16, - ctlr, buf, sizeof(ReadCapdata_struct_16), + log_unit_to_scsi3addr(h, scsi3addr, logvol); + return_code = sendcmd_withirq(h, CCISS_READ_CAPACITY_16, + buf, sizeof(ReadCapdata_struct_16), 0, scsi3addr, TYPE_CMD); if (return_code == IO_OK) { *total_size = be64_to_cpu(*(__be64 *) buf->total_size); @@ -2910,13 +2907,13 @@ static int cciss_revalidate(struct gendisk *disk) return 1; } if (h->cciss_read == CCISS_READ_10) { - cciss_read_capacity(h->ctlr, logvol, + cciss_read_capacity(h, logvol, &total_size, &block_size); } else { - cciss_read_capacity_16(h->ctlr, logvol, + cciss_read_capacity_16(h, logvol, &total_size, &block_size); } - cciss_geometry_inquiry(h->ctlr, logvol, total_size, block_size, + cciss_geometry_inquiry(h, logvol, total_size, block_size, inq_buff, drv); blk_queue_logical_block_size(drv->queue, drv->block_size); @@ -2966,7 +2963,7 @@ static void start_io(ctlr_info_t *h) } } -/* Assumes that CCISS_LOCK(h->ctlr) is held. */ +/* Assumes that h->lock 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) @@ -3494,7 +3491,7 @@ static irqreturn_t do_cciss_intx(int irq, void *dev_id) * If there are completed commands in the completion queue, * we had better do something about it. */ - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); while (interrupt_pending(h)) { raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) { @@ -3505,7 +3502,7 @@ static irqreturn_t do_cciss_intx(int irq, void *dev_id) } } - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return IRQ_HANDLED; } @@ -3524,7 +3521,7 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id) * If there are completed commands in the completion queue, * we had better do something about it. */ - spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) { if (cciss_tag_contains_index(raw_tag)) @@ -3533,7 +3530,7 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id) raw_tag = process_nonindexed_cmd(h, raw_tag); } - spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); return IRQ_HANDLED; } @@ -3961,7 +3958,7 @@ clean_up: * controllers that are capable. If not, we use IO-APIC mode. */ -static void __devinit cciss_interrupt_mode(ctlr_info_t *c) +static void __devinit cciss_interrupt_mode(ctlr_info_t *h) { #ifdef CONFIG_PCI_MSI int err; @@ -3970,18 +3967,18 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c) }; /* Some boards advertise MSI but don't really support it */ - if ((c->board_id == 0x40700E11) || (c->board_id == 0x40800E11) || - (c->board_id == 0x40820E11) || (c->board_id == 0x40830E11)) + if ((h->board_id == 0x40700E11) || (h->board_id == 0x40800E11) || + (h->board_id == 0x40820E11) || (h->board_id == 0x40830E11)) goto default_int_mode; - if (pci_find_capability(c->pdev, PCI_CAP_ID_MSIX)) { - err = pci_enable_msix(c->pdev, cciss_msix_entries, 4); + if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) { + err = pci_enable_msix(h->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; + h->intr[0] = cciss_msix_entries[0].vector; + h->intr[1] = cciss_msix_entries[1].vector; + h->intr[2] = cciss_msix_entries[2].vector; + h->intr[3] = cciss_msix_entries[3].vector; + h->msix_vector = 1; return; } if (err > 0) { @@ -3994,17 +3991,16 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c) goto default_int_mode; } } - if (pci_find_capability(c->pdev, PCI_CAP_ID_MSI)) { - if (!pci_enable_msi(c->pdev)) { - c->msi_vector = 1; - } else { + if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) { + if (!pci_enable_msi(h->pdev)) + h->msi_vector = 1; + else printk(KERN_WARNING "cciss: MSI init failed\n"); - } } default_int_mode: #endif /* CONFIG_PCI_MSI */ /* if we get here we're going to use the default interrupt mode */ - c->intr[PERF_MODE_INT] = c->pdev->irq; + h->intr[PERF_MODE_INT] = h->pdev->irq; return; } @@ -4190,28 +4186,28 @@ static inline void cciss_p600_dma_prefetch_quirk(ctlr_info_t *h) pci_write_config_dword(h->pdev, PCI_COMMAND_PARITY, dma_refetch); } -static int __devinit cciss_pci_init(ctlr_info_t *c) +static int __devinit cciss_pci_init(ctlr_info_t *h) { int prod_index, err; - prod_index = cciss_lookup_board_id(c->pdev, &c->board_id); + prod_index = cciss_lookup_board_id(h->pdev, &h->board_id); if (prod_index < 0) return -ENODEV; - c->product_name = products[prod_index].product_name; - c->access = *(products[prod_index].access); + h->product_name = products[prod_index].product_name; + h->access = *(products[prod_index].access); - if (cciss_board_disabled(c)) { + if (cciss_board_disabled(h)) { printk(KERN_WARNING "cciss: controller appears to be disabled\n"); return -ENODEV; } - err = pci_enable_device(c->pdev); + err = pci_enable_device(h->pdev); if (err) { printk(KERN_ERR "cciss: Unable to Enable PCI device\n"); return err; } - err = pci_request_regions(c->pdev, "cciss"); + err = pci_request_regions(h->pdev, "cciss"); if (err) { printk(KERN_ERR "cciss: Cannot obtain PCI resources, " "aborting\n"); @@ -4220,38 +4216,38 @@ static int __devinit cciss_pci_init(ctlr_info_t *c) #ifdef CCISS_DEBUG printk(KERN_INFO "command = %x\n", command); - printk(KERN_INFO "irq = %x\n", c->pdev->irq); - printk(KERN_INFO "board_id = %x\n", c->board_id); + printk(KERN_INFO "irq = %x\n", h->pdev->irq); + printk(KERN_INFO "board_id = %x\n", h->board_id); #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. */ - cciss_interrupt_mode(c); - err = cciss_pci_find_memory_BAR(c->pdev, &c->paddr); + cciss_interrupt_mode(h); + err = cciss_pci_find_memory_BAR(h->pdev, &h->paddr); if (err) goto err_out_free_res; - c->vaddr = remap_pci_mem(c->paddr, 0x250); - if (!c->vaddr) { + h->vaddr = remap_pci_mem(h->paddr, 0x250); + if (!h->vaddr) { err = -ENOMEM; goto err_out_free_res; } - err = cciss_wait_for_board_ready(c); + err = cciss_wait_for_board_ready(h); if (err) goto err_out_free_res; - err = cciss_find_cfgtables(c); + err = cciss_find_cfgtables(h); if (err) goto err_out_free_res; - print_cfg_table(c->cfgtable); - cciss_find_board_params(c); + print_cfg_table(h->cfgtable); + cciss_find_board_params(h); - if (!CISS_signature_present(c)) { + if (!CISS_signature_present(h)) { err = -ENODEV; goto err_out_free_res; } - cciss_enable_scsi_prefetch(c); - cciss_p600_dma_prefetch_quirk(c); - cciss_put_controller_into_performant_mode(c); + cciss_enable_scsi_prefetch(h); + cciss_p600_dma_prefetch_quirk(h); + cciss_put_controller_into_performant_mode(h); return 0; err_out_free_res: @@ -4259,13 +4255,13 @@ err_out_free_res: * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo */ - if (c->transtable) - iounmap(c->transtable); - if (c->cfgtable) - iounmap(c->cfgtable); - if (c->vaddr) - iounmap(c->vaddr); - pci_release_regions(c->pdev); + if (h->transtable) + iounmap(h->transtable); + if (h->cfgtable) + iounmap(h->cfgtable); + if (h->vaddr) + iounmap(h->vaddr); + pci_release_regions(h->pdev); return err; } @@ -4278,12 +4274,12 @@ static int alloc_cciss_hba(void) for (i = 0; i < MAX_CTLR; i++) { if (!hba[i]) { - ctlr_info_t *p; + ctlr_info_t *h; - p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL); - if (!p) + h = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL); + if (!h) goto Enomem; - hba[i] = p; + hba[i] = h; return i; } } @@ -4295,12 +4291,11 @@ Enomem: return -1; } -static void free_hba(int n) +static void free_hba(ctlr_info_t *h) { - ctlr_info_t *h = hba[n]; int i; - hba[n] = NULL; + hba[h->ctlr] = NULL; for (i = 0; i < h->highest_lun + 1; i++) if (h->gendisk[i] != NULL) put_disk(h->gendisk[i]); @@ -4651,6 +4646,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, int rc; int dac, return_code; InquiryData_struct *inq_buff; + ctlr_info_t *h; rc = cciss_init_reset_devices(pdev); if (rc) @@ -4659,21 +4655,22 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, if (i < 0) return -1; - hba[i]->pdev = pdev; - hba[i]->busy_initializing = 1; - INIT_HLIST_HEAD(&hba[i]->cmpQ); - INIT_HLIST_HEAD(&hba[i]->reqQ); - mutex_init(&hba[i]->busy_shutting_down); + h = hba[i]; + h->pdev = pdev; + h->busy_initializing = 1; + INIT_HLIST_HEAD(&h->cmpQ); + INIT_HLIST_HEAD(&h->reqQ); + mutex_init(&h->busy_shutting_down); - if (cciss_pci_init(hba[i]) != 0) + if (cciss_pci_init(h) != 0) goto clean_no_release_regions; - sprintf(hba[i]->devname, "cciss%d", i); - hba[i]->ctlr = i; + sprintf(h->devname, "cciss%d", i); + h->ctlr = i; - init_completion(&hba[i]->scan_wait); + init_completion(&h->scan_wait); - if (cciss_create_hba_sysfs_entry(hba[i])) + if (cciss_create_hba_sysfs_entry(h)) goto clean0; /* configure PCI DMA stuff */ @@ -4692,100 +4689,100 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, * 8 controller support. */ if (i < MAX_CTLR_ORIG) - hba[i]->major = COMPAQ_CISS_MAJOR + i; - rc = register_blkdev(hba[i]->major, hba[i]->devname); + h->major = COMPAQ_CISS_MAJOR + i; + rc = register_blkdev(h->major, h->devname); if (rc == -EBUSY || rc == -EINVAL) { printk(KERN_ERR "cciss: Unable to get major number %d for %s " - "on hba %d\n", hba[i]->major, hba[i]->devname, i); + "on hba %d\n", h->major, h->devname, i); goto clean1; } else { if (i >= MAX_CTLR_ORIG) - hba[i]->major = rc; + h->major = rc; } /* make sure the board interrupts are off */ - hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_OFF); - if (hba[i]->msi_vector || hba[i]->msix_vector) { - if (request_irq(hba[i]->intr[PERF_MODE_INT], + h->access.set_intr_mask(h, CCISS_INTR_OFF); + if (h->msi_vector || h->msix_vector) { + if (request_irq(h->intr[PERF_MODE_INT], do_cciss_msix_intr, - IRQF_DISABLED, hba[i]->devname, hba[i])) { + IRQF_DISABLED, h->devname, h)) { printk(KERN_ERR "cciss: Unable to get irq %d for %s\n", - hba[i]->intr[PERF_MODE_INT], hba[i]->devname); + h->intr[PERF_MODE_INT], h->devname); goto clean2; } } else { - if (request_irq(hba[i]->intr[PERF_MODE_INT], do_cciss_intx, - IRQF_DISABLED, hba[i]->devname, hba[i])) { + if (request_irq(h->intr[PERF_MODE_INT], do_cciss_intx, + IRQF_DISABLED, h->devname, h)) { printk(KERN_ERR "cciss: Unable to get irq %d for %s\n", - hba[i]->intr[PERF_MODE_INT], hba[i]->devname); + h->intr[PERF_MODE_INT], h->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[PERF_MODE_INT], dac ? "" : " not"); + h->devname, pdev->device, pci_name(pdev), + h->intr[PERF_MODE_INT], dac ? "" : " not"); - hba[i]->cmd_pool_bits = - kmalloc(DIV_ROUND_UP(hba[i]->nr_cmds, BITS_PER_LONG) + h->cmd_pool_bits = + kmalloc(DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) * sizeof(unsigned long), GFP_KERNEL); - hba[i]->cmd_pool = (CommandList_struct *) - pci_alloc_consistent(hba[i]->pdev, - hba[i]->nr_cmds * sizeof(CommandList_struct), - &(hba[i]->cmd_pool_dhandle)); - hba[i]->errinfo_pool = (ErrorInfo_struct *) - pci_alloc_consistent(hba[i]->pdev, - hba[i]->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)) { + h->cmd_pool = (CommandList_struct *) + pci_alloc_consistent(h->pdev, + h->nr_cmds * sizeof(CommandList_struct), + &(h->cmd_pool_dhandle)); + h->errinfo_pool = (ErrorInfo_struct *) + pci_alloc_consistent(h->pdev, + h->nr_cmds * sizeof(ErrorInfo_struct), + &(h->errinfo_pool_dhandle)); + if ((h->cmd_pool_bits == NULL) + || (h->cmd_pool == NULL) + || (h->errinfo_pool == NULL)) { printk(KERN_ERR "cciss: out of memory"); goto clean4; } /* Need space for temp scatter list */ - hba[i]->scatter_list = kmalloc(hba[i]->max_commands * + h->scatter_list = kmalloc(h->max_commands * sizeof(struct scatterlist *), GFP_KERNEL); - for (k = 0; k < hba[i]->nr_cmds; k++) { - hba[i]->scatter_list[k] = kmalloc(sizeof(struct scatterlist) * - hba[i]->maxsgentries, + for (k = 0; k < h->nr_cmds; k++) { + h->scatter_list[k] = kmalloc(sizeof(struct scatterlist) * + h->maxsgentries, GFP_KERNEL); - if (hba[i]->scatter_list[k] == NULL) { + if (h->scatter_list[k] == NULL) { printk(KERN_ERR "cciss%d: could not allocate " "s/g lists\n", i); goto clean4; } } - hba[i]->cmd_sg_list = cciss_allocate_sg_chain_blocks(hba[i], - hba[i]->chainsize, hba[i]->nr_cmds); - if (!hba[i]->cmd_sg_list && hba[i]->chainsize > 0) + h->cmd_sg_list = cciss_allocate_sg_chain_blocks(h, + h->chainsize, h->nr_cmds); + if (!h->cmd_sg_list && h->chainsize > 0) goto clean4; - spin_lock_init(&hba[i]->lock); + spin_lock_init(&h->lock); /* Initialize the pdev driver private data. - have it point to hba[i]. */ - pci_set_drvdata(pdev, hba[i]); + have it point to h. */ + pci_set_drvdata(pdev, h); /* command and error info recs zeroed out before they are used */ - memset(hba[i]->cmd_pool_bits, 0, - DIV_ROUND_UP(hba[i]->nr_cmds, BITS_PER_LONG) + memset(h->cmd_pool_bits, 0, + DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) * sizeof(unsigned long)); - hba[i]->num_luns = 0; - hba[i]->highest_lun = -1; + h->num_luns = 0; + h->highest_lun = -1; for (j = 0; j < CISS_MAX_LUN; j++) { - hba[i]->drv[j] = NULL; - hba[i]->gendisk[j] = NULL; + h->drv[j] = NULL; + h->gendisk[j] = NULL; } - cciss_scsi_setup(i); + cciss_scsi_setup(h); /* Turn the interrupts on so we can service requests */ - hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON); + h->access.set_intr_mask(h, CCISS_INTR_ON); /* Get the firmware version */ inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); @@ -4794,59 +4791,59 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, goto clean4; } - return_code = sendcmd_withirq(CISS_INQUIRY, i, inq_buff, + return_code = sendcmd_withirq(h, CISS_INQUIRY, inq_buff, sizeof(InquiryData_struct), 0, CTLR_LUNID, TYPE_CMD); if (return_code == IO_OK) { - hba[i]->firm_ver[0] = inq_buff->data_byte[32]; - hba[i]->firm_ver[1] = inq_buff->data_byte[33]; - hba[i]->firm_ver[2] = inq_buff->data_byte[34]; - hba[i]->firm_ver[3] = inq_buff->data_byte[35]; + h->firm_ver[0] = inq_buff->data_byte[32]; + h->firm_ver[1] = inq_buff->data_byte[33]; + h->firm_ver[2] = inq_buff->data_byte[34]; + h->firm_ver[3] = inq_buff->data_byte[35]; } else { /* send command failed */ printk(KERN_WARNING "cciss: unable to determine firmware" " version of controller\n"); } kfree(inq_buff); - cciss_procinit(i); + cciss_procinit(h); - hba[i]->cciss_max_sectors = 8192; + h->cciss_max_sectors = 8192; - rebuild_lun_table(hba[i], 1, 0); - hba[i]->busy_initializing = 0; + rebuild_lun_table(h, 1, 0); + h->busy_initializing = 0; return 1; clean4: - kfree(hba[i]->cmd_pool_bits); + kfree(h->cmd_pool_bits); /* Free up sg elements */ - for (k = 0; k < hba[i]->nr_cmds; k++) - kfree(hba[i]->scatter_list[k]); - kfree(hba[i]->scatter_list); - cciss_free_sg_chain_blocks(hba[i]->cmd_sg_list, hba[i]->nr_cmds); - if (hba[i]->cmd_pool) - pci_free_consistent(hba[i]->pdev, - hba[i]->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, - hba[i]->nr_cmds * sizeof(ErrorInfo_struct), - hba[i]->errinfo_pool, - hba[i]->errinfo_pool_dhandle); - free_irq(hba[i]->intr[PERF_MODE_INT], hba[i]); + for (k = 0; k < h->nr_cmds; k++) + kfree(h->scatter_list[k]); + kfree(h->scatter_list); + cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds); + if (h->cmd_pool) + pci_free_consistent(h->pdev, + h->nr_cmds * sizeof(CommandList_struct), + h->cmd_pool, h->cmd_pool_dhandle); + if (h->errinfo_pool) + pci_free_consistent(h->pdev, + h->nr_cmds * sizeof(ErrorInfo_struct), + h->errinfo_pool, + h->errinfo_pool_dhandle); + free_irq(h->intr[PERF_MODE_INT], h); clean2: - unregister_blkdev(hba[i]->major, hba[i]->devname); + unregister_blkdev(h->major, h->devname); clean1: - cciss_destroy_hba_sysfs_entry(hba[i]); + cciss_destroy_hba_sysfs_entry(h); clean0: pci_release_regions(pdev); clean_no_release_regions: - hba[i]->busy_initializing = 0; + h->busy_initializing = 0; /* * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo */ pci_set_drvdata(pdev, NULL); - free_hba(i); + free_hba(h); return -1; } @@ -4866,7 +4863,7 @@ static void cciss_shutdown(struct pci_dev *pdev) } /* write all data in the battery backed cache to disk */ memset(flush_buf, 0, 4); - return_code = sendcmd_withirq(CCISS_CACHE_FLUSH, h->ctlr, flush_buf, + return_code = sendcmd_withirq(h, CCISS_CACHE_FLUSH, flush_buf, 4, 0, CTLR_LUNID, TYPE_CMD); kfree(flush_buf); if (return_code != IO_OK) @@ -4878,7 +4875,7 @@ static void cciss_shutdown(struct pci_dev *pdev) static void __devexit cciss_remove_one(struct pci_dev *pdev) { - ctlr_info_t *tmp_ptr; + ctlr_info_t *h; int i, j; if (pci_get_drvdata(pdev) == NULL) { @@ -4886,28 +4883,28 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) return; } - tmp_ptr = pci_get_drvdata(pdev); - i = tmp_ptr->ctlr; + h = pci_get_drvdata(pdev); + i = h->ctlr; if (hba[i] == NULL) { printk(KERN_ERR "cciss: device appears to " - "already be removed \n"); + "already be removed\n"); return; } - mutex_lock(&hba[i]->busy_shutting_down); + mutex_lock(&h->busy_shutting_down); - remove_from_scan_list(hba[i]); - remove_proc_entry(hba[i]->devname, proc_cciss); - unregister_blkdev(hba[i]->major, hba[i]->devname); + remove_from_scan_list(h); + remove_proc_entry(h->devname, proc_cciss); + unregister_blkdev(h->major, h->devname); /* remove it from the disk list */ for (j = 0; j < CISS_MAX_LUN; j++) { - struct gendisk *disk = hba[i]->gendisk[j]; + struct gendisk *disk = h->gendisk[j]; if (disk) { struct request_queue *q = disk->queue; if (disk->flags & GENHD_FL_UP) { - cciss_destroy_ld_sysfs_entry(hba[i], j, 1); + cciss_destroy_ld_sysfs_entry(h, j, 1); del_gendisk(disk); } if (q) @@ -4916,41 +4913,41 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) } #ifdef CONFIG_CISS_SCSI_TAPE - cciss_unregister_scsi(i); /* unhook from SCSI subsystem */ + cciss_unregister_scsi(h); /* unhook from SCSI subsystem */ #endif cciss_shutdown(pdev); #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); + if (h->msix_vector) + pci_disable_msix(h->pdev); + else if (h->msi_vector) + pci_disable_msi(h->pdev); #endif /* CONFIG_PCI_MSI */ - iounmap(hba[i]->transtable); - iounmap(hba[i]->cfgtable); - iounmap(hba[i]->vaddr); + iounmap(h->transtable); + iounmap(h->cfgtable); + iounmap(h->vaddr); - pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(CommandList_struct), - hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle); - pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(ErrorInfo_struct), - hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle); - kfree(hba[i]->cmd_pool_bits); + pci_free_consistent(h->pdev, h->nr_cmds * sizeof(CommandList_struct), + h->cmd_pool, h->cmd_pool_dhandle); + pci_free_consistent(h->pdev, h->nr_cmds * sizeof(ErrorInfo_struct), + h->errinfo_pool, h->errinfo_pool_dhandle); + kfree(h->cmd_pool_bits); /* Free up sg elements */ - for (j = 0; j < hba[i]->nr_cmds; j++) - kfree(hba[i]->scatter_list[j]); - kfree(hba[i]->scatter_list); - cciss_free_sg_chain_blocks(hba[i]->cmd_sg_list, hba[i]->nr_cmds); + for (j = 0; j < h->nr_cmds; j++) + kfree(h->scatter_list[j]); + kfree(h->scatter_list); + cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds); /* * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo */ pci_release_regions(pdev); pci_set_drvdata(pdev, NULL); - cciss_destroy_hba_sysfs_entry(hba[i]); - mutex_unlock(&hba[i]->busy_shutting_down); - free_hba(i); + cciss_destroy_hba_sysfs_entry(h); + mutex_unlock(&h->busy_shutting_down); + free_hba(h); } static struct pci_driver cciss_pci_driver = { diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 4290b7f0f63..ae340ffc8f8 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -419,6 +419,4 @@ struct board_type { int nr_cmds; /* Max cmds this kind of ctlr can handle. */ }; -#define CCISS_LOCK(i) (&hba[i]->lock) - #endif /* CCISS_H */ diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 3604b72f2af..9133ad4c7b1 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -44,7 +44,7 @@ #define CCISS_ABORT_MSG 0x00 #define CCISS_RESET_MSG 0x01 -static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, +static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr, int cmd_type); @@ -127,16 +127,16 @@ struct cciss_scsi_adapter_data_t { spinlock_t lock; // to protect ccissscsi[ctlr]; }; -#define CPQ_TAPE_LOCK(ctlr, flags) spin_lock_irqsave( \ - &hba[ctlr]->scsi_ctlr->lock, flags); -#define CPQ_TAPE_UNLOCK(ctlr, flags) spin_unlock_irqrestore( \ - &hba[ctlr]->scsi_ctlr->lock, flags); +#define CPQ_TAPE_LOCK(h, flags) spin_lock_irqsave( \ + &h->scsi_ctlr->lock, flags); +#define CPQ_TAPE_UNLOCK(h, flags) spin_unlock_irqrestore( \ + &h->scsi_ctlr->lock, flags); static CommandList_struct * scsi_cmd_alloc(ctlr_info_t *h) { /* assume only one process in here at a time, locking done by caller. */ - /* use CCISS_LOCK(ctlr) */ + /* use h->lock */ /* might be better to rewrite how we allocate scsi commands in a way that */ /* needs no locking at all. */ @@ -177,10 +177,10 @@ scsi_cmd_alloc(ctlr_info_t *h) } static void -scsi_cmd_free(ctlr_info_t *h, CommandList_struct *cmd) +scsi_cmd_free(ctlr_info_t *h, CommandList_struct *c) { /* assume only one process in here at a time, locking done by caller. */ - /* use CCISS_LOCK(ctlr) */ + /* use h->lock */ /* drop the free memory chunk on top of the stack. */ struct cciss_scsi_adapter_data_t *sa; @@ -193,19 +193,19 @@ scsi_cmd_free(ctlr_info_t *h, CommandList_struct *cmd) printk("cciss: scsi_cmd_free called too many times.\n"); BUG(); } - stk->elem[stk->top] = (struct cciss_scsi_cmd_stack_elem_t *) cmd; + stk->elem[stk->top] = (struct cciss_scsi_cmd_stack_elem_t *) c; } static int -scsi_cmd_stack_setup(int ctlr, struct cciss_scsi_adapter_data_t *sa) +scsi_cmd_stack_setup(ctlr_info_t *h, struct cciss_scsi_adapter_data_t *sa) { int i; struct cciss_scsi_cmd_stack_t *stk; size_t size; - sa->cmd_sg_list = cciss_allocate_sg_chain_blocks(hba[ctlr], - hba[ctlr]->chainsize, CMD_STACK_SIZE); - if (!sa->cmd_sg_list && hba[ctlr]->chainsize > 0) + sa->cmd_sg_list = cciss_allocate_sg_chain_blocks(h, + h->chainsize, CMD_STACK_SIZE); + if (!sa->cmd_sg_list && h->chainsize > 0) return -ENOMEM; stk = &sa->cmd_stack; @@ -215,7 +215,7 @@ scsi_cmd_stack_setup(int ctlr, struct cciss_scsi_adapter_data_t *sa) BUILD_BUG_ON((sizeof(*stk->pool) % COMMANDLIST_ALIGNMENT) != 0); /* pci_alloc_consistent guarantees 32-bit DMA address will be used */ stk->pool = (struct cciss_scsi_cmd_stack_elem_t *) - pci_alloc_consistent(hba[ctlr]->pdev, size, &stk->cmd_pool_handle); + pci_alloc_consistent(h->pdev, size, &stk->cmd_pool_handle); if (stk->pool == NULL) { cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); @@ -234,13 +234,13 @@ scsi_cmd_stack_setup(int ctlr, struct cciss_scsi_adapter_data_t *sa) } static void -scsi_cmd_stack_free(int ctlr) +scsi_cmd_stack_free(ctlr_info_t *h) { struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; size_t size; - sa = hba[ctlr]->scsi_ctlr; + sa = h->scsi_ctlr; stk = &sa->cmd_stack; if (stk->top != CMD_STACK_SIZE-1) { printk( "cciss: %d scsi commands are still outstanding.\n", @@ -250,7 +250,7 @@ scsi_cmd_stack_free(int ctlr) } size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * CMD_STACK_SIZE; - pci_free_consistent(hba[ctlr]->pdev, size, stk->pool, stk->cmd_pool_handle); + pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle); stk->pool = NULL; cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); } @@ -342,20 +342,20 @@ print_cmd(CommandList_struct *cp) #endif static int -find_bus_target_lun(int ctlr, int *bus, int *target, int *lun) +find_bus_target_lun(ctlr_info_t *h, int *bus, int *target, int *lun) { /* finds an unused bus, target, lun for a new device */ - /* assumes hba[ctlr]->scsi_ctlr->lock is held */ + /* assumes h->scsi_ctlr->lock is held */ int i, found=0; unsigned char target_taken[CCISS_MAX_SCSI_DEVS_PER_HBA]; memset(&target_taken[0], 0, CCISS_MAX_SCSI_DEVS_PER_HBA); target_taken[SELF_SCSI_ID] = 1; - for (i=0;ictlr].ndevices; i++) + target_taken[ccissscsi[h->ctlr].dev[i].target] = 1; - for (i=0;iscsi_ctlr->lock is held */ - int n = ccissscsi[ctlr].ndevices; + /* assumes h->scsi_ctlr->lock is held */ + int n = ccissscsi[h->ctlr].ndevices; struct cciss_scsi_dev_t *sd; int i, bus, target, lun; unsigned char addr1[8], addr2[8]; if (n >= CCISS_MAX_SCSI_DEVS_PER_HBA) { printk("cciss%d: Too many devices, " - "some will be inaccessible.\n", ctlr); + "some will be inaccessible.\n", h->ctlr); return -1; } @@ -397,7 +397,7 @@ cciss_scsi_add_entry(int ctlr, int hostno, memcpy(addr1, device->scsi3addr, 8); addr1[4] = 0; for (i = 0; i < n; i++) { - sd = &ccissscsi[ctlr].dev[i]; + sd = &ccissscsi[h->ctlr].dev[i]; memcpy(addr2, sd->scsi3addr, 8); addr2[4] = 0; /* differ only in byte 4? */ @@ -410,9 +410,9 @@ cciss_scsi_add_entry(int ctlr, int hostno, } } - sd = &ccissscsi[ctlr].dev[n]; + sd = &ccissscsi[h->ctlr].dev[n]; if (lun == 0) { - if (find_bus_target_lun(ctlr, + if (find_bus_target_lun(h, &sd->bus, &sd->target, &sd->lun) != 0) return -1; } else { @@ -431,37 +431,37 @@ cciss_scsi_add_entry(int ctlr, int hostno, memcpy(sd->device_id, device->device_id, sizeof(sd->device_id)); sd->devtype = device->devtype; - ccissscsi[ctlr].ndevices++; + ccissscsi[h->ctlr].ndevices++; /* initially, (before registering with scsi layer) we don't know our hostno and we don't want to print anything first time anyway (the scsi layer's inquiries will show that info) */ if (hostno != -1) printk("cciss%d: %s device c%db%dt%dl%d added.\n", - ctlr, scsi_device_type(sd->devtype), hostno, + h->ctlr, scsi_device_type(sd->devtype), hostno, sd->bus, sd->target, sd->lun); return 0; } static void -cciss_scsi_remove_entry(int ctlr, int hostno, int entry, +cciss_scsi_remove_entry(ctlr_info_t *h, int hostno, int entry, struct scsi2map *removed, int *nremoved) { - /* assumes hba[ctlr]->scsi_ctlr->lock is held */ + /* assumes h->ctlr]->scsi_ctlr->lock is held */ int i; struct cciss_scsi_dev_t sd; if (entry < 0 || entry >= CCISS_MAX_SCSI_DEVS_PER_HBA) return; - sd = ccissscsi[ctlr].dev[entry]; + sd = ccissscsi[h->ctlr].dev[entry]; removed[*nremoved].bus = sd.bus; removed[*nremoved].target = sd.target; removed[*nremoved].lun = sd.lun; (*nremoved)++; - for (i=entry;ictlr].ndevices-1; i++) + ccissscsi[h->ctlr].dev[i] = ccissscsi[h->ctlr].dev[i+1]; + ccissscsi[h->ctlr].ndevices--; printk("cciss%d: %s device c%db%dt%dl%d removed.\n", - ctlr, scsi_device_type(sd.devtype), hostno, + h->ctlr, scsi_device_type(sd.devtype), hostno, sd.bus, sd.target, sd.lun); } @@ -476,24 +476,24 @@ cciss_scsi_remove_entry(int ctlr, int hostno, int entry, (a)[1] == (b)[1] && \ (a)[0] == (b)[0]) -static void fixup_botched_add(int ctlr, char *scsi3addr) +static void fixup_botched_add(ctlr_info_t *h, char *scsi3addr) { /* called when scsi_add_device fails in order to re-adjust */ /* ccissscsi[] to match the mid layer's view. */ unsigned long flags; int i, j; - CPQ_TAPE_LOCK(ctlr, flags); - for (i = 0; i < ccissscsi[ctlr].ndevices; i++) { + CPQ_TAPE_LOCK(h, flags); + for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { if (memcmp(scsi3addr, - ccissscsi[ctlr].dev[i].scsi3addr, 8) == 0) { - for (j = i; j < ccissscsi[ctlr].ndevices-1; j++) - ccissscsi[ctlr].dev[j] = - ccissscsi[ctlr].dev[j+1]; - ccissscsi[ctlr].ndevices--; + ccissscsi[h->ctlr].dev[i].scsi3addr, 8) == 0) { + for (j = i; j < ccissscsi[h->ctlr].ndevices-1; j++) + ccissscsi[h->ctlr].dev[j] = + ccissscsi[h->ctlr].dev[j+1]; + ccissscsi[h->ctlr].ndevices--; break; } } - CPQ_TAPE_UNLOCK(ctlr, flags); + CPQ_TAPE_UNLOCK(h, flags); } static int device_is_the_same(struct cciss_scsi_dev_t *dev1, @@ -513,7 +513,7 @@ static int device_is_the_same(struct cciss_scsi_dev_t *dev1, } static int -adjust_cciss_scsi_table(int ctlr, int hostno, +adjust_cciss_scsi_table(ctlr_info_t *h, int hostno, struct cciss_scsi_dev_t sd[], int nsds) { /* sd contains scsi3 addresses and devtypes, but @@ -535,14 +535,14 @@ adjust_cciss_scsi_table(int ctlr, int hostno, if (!added || !removed) { printk(KERN_WARNING "cciss%d: Out of memory in " - "adjust_cciss_scsi_table\n", ctlr); + "adjust_cciss_scsi_table\n", h->ctlr); goto free_and_out; } - CPQ_TAPE_LOCK(ctlr, flags); + CPQ_TAPE_LOCK(h, flags); if (hostno != -1) /* if it's not the first time... */ - sh = hba[ctlr]->scsi_ctlr->scsi_host; + sh = h->scsi_ctlr->scsi_host; /* find any devices in ccissscsi[] that are not in sd[] and remove them from ccissscsi[] */ @@ -550,8 +550,8 @@ adjust_cciss_scsi_table(int ctlr, int hostno, i = 0; nremoved = 0; nadded = 0; - while(ictlr].ndevices) { + csd = &ccissscsi[h->ctlr].dev[i]; found=0; for (j=0;jdevtype), hostno, + h->ctlr, scsi_device_type(csd->devtype), hostno, csd->bus, csd->target, csd->lun); */ - cciss_scsi_remove_entry(ctlr, hostno, i, + cciss_scsi_remove_entry(h, hostno, i, removed, &nremoved); /* remove ^^^, hence i not incremented */ } else if (found == 1) { /* device is different in some way */ changes++; printk("cciss%d: device c%db%dt%dl%d has changed.\n", - ctlr, hostno, csd->bus, csd->target, csd->lun); - cciss_scsi_remove_entry(ctlr, hostno, i, + h->ctlr, hostno, + csd->bus, csd->target, csd->lun); + cciss_scsi_remove_entry(h, hostno, i, removed, &nremoved); /* remove ^^^, hence i not incremented */ - if (cciss_scsi_add_entry(ctlr, hostno, &sd[j], + if (cciss_scsi_add_entry(h, hostno, &sd[j], added, &nadded) != 0) /* we just removed one, so add can't fail. */ BUG(); @@ -601,8 +602,8 @@ adjust_cciss_scsi_table(int ctlr, int hostno, for (i=0;ictlr].ndevices; j++) { + csd = &ccissscsi[h->ctlr].dev[j]; if (SCSI3ADDR_EQ(sd[i].scsi3addr, csd->scsi3addr)) { if (device_is_the_same(&sd[i], csd)) @@ -614,18 +615,18 @@ adjust_cciss_scsi_table(int ctlr, int hostno, } if (!found) { changes++; - if (cciss_scsi_add_entry(ctlr, hostno, &sd[i], + if (cciss_scsi_add_entry(h, hostno, &sd[i], added, &nadded) != 0) break; } else if (found == 1) { /* should never happen... */ changes++; printk(KERN_WARNING "cciss%d: device " - "unexpectedly changed\n", ctlr); + "unexpectedly changed\n", h->ctlr); /* but if it does happen, we just ignore that device */ } } - CPQ_TAPE_UNLOCK(ctlr, flags); + CPQ_TAPE_UNLOCK(h, flags); /* Don't notify scsi mid layer of any changes the first time through */ /* (or if there are no changes) scsi_scan_host will do it later the */ @@ -647,7 +648,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno, /* timeout as if the device was gone. */ printk(KERN_WARNING "cciss%d: didn't find " "c%db%dt%dl%d\n for removal.", - ctlr, hostno, removed[i].bus, + h->ctlr, hostno, removed[i].bus, removed[i].target, removed[i].lun); } } @@ -661,11 +662,11 @@ adjust_cciss_scsi_table(int ctlr, int hostno, continue; printk(KERN_WARNING "cciss%d: scsi_add_device " "c%db%dt%dl%d failed, device not added.\n", - ctlr, hostno, + h->ctlr, hostno, added[i].bus, added[i].target, added[i].lun); /* now we have to remove it from ccissscsi, */ /* since it didn't get added to scsi mid layer */ - fixup_botched_add(ctlr, added[i].scsi3addr); + fixup_botched_add(h, added[i].scsi3addr); } free_and_out: @@ -675,33 +676,33 @@ free_and_out: } static int -lookup_scsi3addr(int ctlr, int bus, int target, int lun, char *scsi3addr) +lookup_scsi3addr(ctlr_info_t *h, int bus, int target, int lun, char *scsi3addr) { int i; struct cciss_scsi_dev_t *sd; unsigned long flags; - CPQ_TAPE_LOCK(ctlr, flags); - for (i=0;ictlr].ndevices; i++) { + sd = &ccissscsi[h->ctlr].dev[i]; if (sd->bus == bus && sd->target == target && sd->lun == lun) { memcpy(scsi3addr, &sd->scsi3addr[0], 8); - CPQ_TAPE_UNLOCK(ctlr, flags); + CPQ_TAPE_UNLOCK(h, flags); return 0; } } - CPQ_TAPE_UNLOCK(ctlr, flags); + CPQ_TAPE_UNLOCK(h, flags); return -1; } static void -cciss_scsi_setup(int cntl_num) +cciss_scsi_setup(ctlr_info_t *h) { struct cciss_scsi_adapter_data_t * shba; - ccissscsi[cntl_num].ndevices = 0; + ccissscsi[h->ctlr].ndevices = 0; shba = (struct cciss_scsi_adapter_data_t *) kmalloc(sizeof(*shba), GFP_KERNEL); if (shba == NULL) @@ -709,35 +710,35 @@ cciss_scsi_setup(int cntl_num) shba->scsi_host = NULL; spin_lock_init(&shba->lock); shba->registered = 0; - if (scsi_cmd_stack_setup(cntl_num, shba) != 0) { + if (scsi_cmd_stack_setup(h, shba) != 0) { kfree(shba); shba = NULL; } - hba[cntl_num]->scsi_ctlr = shba; + h->scsi_ctlr = shba; return; } -static void -complete_scsi_command( CommandList_struct *cp, int timeout, __u32 tag) +static void complete_scsi_command(CommandList_struct *c, int timeout, + __u32 tag) { struct scsi_cmnd *cmd; - ctlr_info_t *ctlr; + ctlr_info_t *h; ErrorInfo_struct *ei; - ei = cp->err_info; + ei = c->err_info; /* First, see if it was a message rather than a command */ - if (cp->Request.Type.Type == TYPE_MSG) { - cp->cmd_type = CMD_MSG_DONE; + if (c->Request.Type.Type == TYPE_MSG) { + c->cmd_type = CMD_MSG_DONE; return; } - cmd = (struct scsi_cmnd *) cp->scsi_cmd; - ctlr = hba[cp->ctlr]; + cmd = (struct scsi_cmnd *) c->scsi_cmd; + h = hba[c->ctlr]; scsi_dma_unmap(cmd); - if (cp->Header.SGTotal > ctlr->max_cmd_sgentries) - cciss_unmap_sg_chain_block(ctlr, cp); + if (c->Header.SGTotal > h->max_cmd_sgentries) + cciss_unmap_sg_chain_block(h, c); cmd->result = (DID_OK << 16); /* host byte */ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ @@ -764,9 +765,8 @@ complete_scsi_command( CommandList_struct *cp, int timeout, __u32 tag) { #if 0 printk(KERN_WARNING "cciss: cmd %p " - "has SCSI Status = %x\n", - cp, - ei->ScsiStatus); + "has SCSI Status = %x\n", + c, ei->ScsiStatus); #endif cmd->result |= (ei->ScsiStatus << 1); } @@ -786,13 +786,13 @@ complete_scsi_command( CommandList_struct *cp, int timeout, __u32 tag) case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ break; case CMD_DATA_OVERRUN: - printk(KERN_WARNING "cciss: cp %p has" + printk(KERN_WARNING "cciss: %p has" " completed with data overrun " - "reported\n", cp); + "reported\n", c); break; case CMD_INVALID: { - /* print_bytes(cp, sizeof(*cp), 1, 0); - print_cmd(cp); */ + /* print_bytes(c, sizeof(*c), 1, 0); + print_cmd(c); */ /* We get CMD_INVALID if you address a non-existent tape drive instead of a selection timeout (no response). You will see this if you yank out a tape drive, then try to access it. This is kind of a shame @@ -802,54 +802,52 @@ complete_scsi_command( CommandList_struct *cp, int timeout, __u32 tag) } break; case CMD_PROTOCOL_ERR: - printk(KERN_WARNING "cciss: cp %p has " - "protocol error \n", cp); + printk(KERN_WARNING "cciss: %p has " + "protocol error\n", c); break; case CMD_HARDWARE_ERR: cmd->result = DID_ERROR << 16; - printk(KERN_WARNING "cciss: cp %p had " - " hardware error\n", cp); + printk(KERN_WARNING "cciss: %p had " + " hardware error\n", c); break; case CMD_CONNECTION_LOST: cmd->result = DID_ERROR << 16; - printk(KERN_WARNING "cciss: cp %p had " - "connection lost\n", cp); + printk(KERN_WARNING "cciss: %p had " + "connection lost\n", c); break; case CMD_ABORTED: cmd->result = DID_ABORT << 16; - printk(KERN_WARNING "cciss: cp %p was " - "aborted\n", cp); + printk(KERN_WARNING "cciss: %p was " + "aborted\n", c); break; case CMD_ABORT_FAILED: cmd->result = DID_ERROR << 16; - printk(KERN_WARNING "cciss: cp %p reports " - "abort failed\n", cp); + printk(KERN_WARNING "cciss: %p reports " + "abort failed\n", c); break; case CMD_UNSOLICITED_ABORT: cmd->result = DID_ABORT << 16; - printk(KERN_WARNING "cciss: cp %p aborted " - "do to an unsolicited abort\n", cp); + printk(KERN_WARNING "cciss: %p aborted " + "do to an unsolicited abort\n", c); break; case CMD_TIMEOUT: cmd->result = DID_TIME_OUT << 16; - printk(KERN_WARNING "cciss: cp %p timedout\n", - cp); + printk(KERN_WARNING "cciss: %p timedout\n", + c); break; default: cmd->result = DID_ERROR << 16; - printk(KERN_WARNING "cciss: cp %p returned " - "unknown status %x\n", cp, + printk(KERN_WARNING "cciss: %p returned " + "unknown status %x\n", c, ei->CommandStatus); } } - // printk("c:%p:c%db%dt%dl%d ", cmd, ctlr->ctlr, cmd->channel, - // cmd->target, cmd->lun); cmd->scsi_done(cmd); - scsi_cmd_free(ctlr, cp); + scsi_cmd_free(h, c); } static int -cciss_scsi_detect(int ctlr) +cciss_scsi_detect(ctlr_info_t *h) { struct Scsi_Host *sh; int error; @@ -860,15 +858,15 @@ cciss_scsi_detect(int ctlr) sh->io_port = 0; // good enough? FIXME, sh->n_io_port = 0; // I don't think we use these two... sh->this_id = SELF_SCSI_ID; - sh->sg_tablesize = hba[ctlr]->maxsgentries; + sh->sg_tablesize = h->maxsgentries; sh->max_cmd_len = MAX_COMMAND_SIZE; ((struct cciss_scsi_adapter_data_t *) - hba[ctlr]->scsi_ctlr)->scsi_host = sh; - sh->hostdata[0] = (unsigned long) hba[ctlr]; - sh->irq = hba[ctlr]->intr[SIMPLE_MODE_INT]; + h->scsi_ctlr)->scsi_host = sh; + sh->hostdata[0] = (unsigned long) h; + sh->irq = h->intr[SIMPLE_MODE_INT]; sh->unique_id = sh->irq; - error = scsi_add_host(sh, &hba[ctlr]->pdev->dev); + error = scsi_add_host(sh, &h->pdev->dev); if (error) goto fail_host_put; scsi_scan_host(sh); @@ -882,20 +880,20 @@ cciss_scsi_detect(int ctlr) static void cciss_unmap_one(struct pci_dev *pdev, - CommandList_struct *cp, + CommandList_struct *c, size_t buflen, int data_direction) { u64bit addr64; - addr64.val32.lower = cp->SG[0].Addr.lower; - addr64.val32.upper = cp->SG[0].Addr.upper; + addr64.val32.lower = c->SG[0].Addr.lower; + addr64.val32.upper = c->SG[0].Addr.upper; pci_unmap_single(pdev, (dma_addr_t) addr64.val, buflen, data_direction); } static void cciss_map_one(struct pci_dev *pdev, - CommandList_struct *cp, + CommandList_struct *c, unsigned char *buf, size_t buflen, int data_direction) @@ -903,18 +901,18 @@ cciss_map_one(struct pci_dev *pdev, __u64 addr64; addr64 = (__u64) pci_map_single(pdev, buf, buflen, data_direction); - cp->SG[0].Addr.lower = + c->SG[0].Addr.lower = (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); - cp->SG[0].Addr.upper = + c->SG[0].Addr.upper = (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); - cp->SG[0].Len = buflen; - cp->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */ - cp->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */ + c->SG[0].Len = buflen; + c->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */ + c->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */ } static int -cciss_scsi_do_simple_cmd(ctlr_info_t *c, - CommandList_struct *cp, +cciss_scsi_do_simple_cmd(ctlr_info_t *h, + CommandList_struct *c, unsigned char *scsi3addr, unsigned char *cdb, unsigned char cdblen, @@ -923,53 +921,52 @@ cciss_scsi_do_simple_cmd(ctlr_info_t *c, { DECLARE_COMPLETION_ONSTACK(wait); - cp->cmd_type = CMD_IOCTL_PEND; // treat this like an ioctl - cp->scsi_cmd = NULL; - cp->Header.ReplyQueue = 0; // unused in simple mode - memcpy(&cp->Header.LUN, scsi3addr, sizeof(cp->Header.LUN)); - cp->Header.Tag.lower = cp->busaddr; // Use k. address of cmd as tag + c->cmd_type = CMD_IOCTL_PEND; /* treat this like an ioctl */ + c->scsi_cmd = NULL; + c->Header.ReplyQueue = 0; /* unused in simple mode */ + memcpy(&c->Header.LUN, scsi3addr, sizeof(c->Header.LUN)); + c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */ // Fill in the request block... /* printk("Using scsi3addr 0x%02x%0x2%0x2%0x2%0x2%0x2%0x2%0x2\n", scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3], scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]); */ - memset(cp->Request.CDB, 0, sizeof(cp->Request.CDB)); - memcpy(cp->Request.CDB, cdb, cdblen); - cp->Request.Timeout = 0; - cp->Request.CDBLen = cdblen; - cp->Request.Type.Type = TYPE_CMD; - cp->Request.Type.Attribute = ATTR_SIMPLE; - cp->Request.Type.Direction = direction; + memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); + memcpy(c->Request.CDB, cdb, cdblen); + c->Request.Timeout = 0; + c->Request.CDBLen = cdblen; + c->Request.Type.Type = TYPE_CMD; + c->Request.Type.Attribute = ATTR_SIMPLE; + c->Request.Type.Direction = direction; /* Fill in the SG list and do dma mapping */ - cciss_map_one(c->pdev, cp, (unsigned char *) buf, + cciss_map_one(h->pdev, c, (unsigned char *) buf, bufsize, DMA_FROM_DEVICE); - cp->waiting = &wait; - enqueue_cmd_and_start_io(c, cp); + c->waiting = &wait; + enqueue_cmd_and_start_io(h, c); wait_for_completion(&wait); /* undo the dma mapping */ - cciss_unmap_one(c->pdev, cp, bufsize, DMA_FROM_DEVICE); + cciss_unmap_one(h->pdev, c, bufsize, DMA_FROM_DEVICE); return(0); } static void -cciss_scsi_interpret_error(CommandList_struct *cp) +cciss_scsi_interpret_error(CommandList_struct *c) { ErrorInfo_struct *ei; - ei = cp->err_info; + ei = c->err_info; switch(ei->CommandStatus) { case CMD_TARGET_STATUS: printk(KERN_WARNING "cciss: cmd %p has " - "completed with errors\n", cp); + "completed with errors\n", c); printk(KERN_WARNING "cciss: cmd %p " "has SCSI Status = %x\n", - cp, - ei->ScsiStatus); + c, ei->ScsiStatus); if (ei->ScsiStatus == 0) printk(KERN_WARNING "cciss:SCSI status is abnormally zero. " @@ -981,78 +978,75 @@ cciss_scsi_interpret_error(CommandList_struct *cp) printk("UNDERRUN\n"); break; case CMD_DATA_OVERRUN: - printk(KERN_WARNING "cciss: cp %p has" + printk(KERN_WARNING "cciss: %p has" " completed with data overrun " - "reported\n", cp); + "reported\n", c); break; case CMD_INVALID: { /* controller unfortunately reports SCSI passthru's */ /* to non-existent targets as invalid commands. */ - printk(KERN_WARNING "cciss: cp %p is " + printk(KERN_WARNING "cciss: %p is " "reported invalid (probably means " - "target device no longer present)\n", - cp); - /* print_bytes((unsigned char *) cp, sizeof(*cp), 1, 0); - print_cmd(cp); */ + "target device no longer present)\n", c); + /* print_bytes((unsigned char *) c, sizeof(*c), 1, 0); + print_cmd(c); */ } break; case CMD_PROTOCOL_ERR: - printk(KERN_WARNING "cciss: cp %p has " - "protocol error \n", cp); + printk(KERN_WARNING "cciss: %p has " + "protocol error\n", c); break; case CMD_HARDWARE_ERR: /* cmd->result = DID_ERROR << 16; */ - printk(KERN_WARNING "cciss: cp %p had " - " hardware error\n", cp); + printk(KERN_WARNING "cciss: %p had " + " hardware error\n", c); break; case CMD_CONNECTION_LOST: - printk(KERN_WARNING "cciss: cp %p had " - "connection lost\n", cp); + printk(KERN_WARNING "cciss: %p had " + "connection lost\n", c); break; case CMD_ABORTED: - printk(KERN_WARNING "cciss: cp %p was " - "aborted\n", cp); + printk(KERN_WARNING "cciss: %p was " + "aborted\n", c); break; case CMD_ABORT_FAILED: - printk(KERN_WARNING "cciss: cp %p reports " - "abort failed\n", cp); + printk(KERN_WARNING "cciss: %p reports " + "abort failed\n", c); break; case CMD_UNSOLICITED_ABORT: - printk(KERN_WARNING "cciss: cp %p aborted " - "do to an unsolicited abort\n", cp); + printk(KERN_WARNING "cciss: %p aborted " + "do to an unsolicited abort\n", c); break; case CMD_TIMEOUT: - printk(KERN_WARNING "cciss: cp %p timedout\n", - cp); + printk(KERN_WARNING "cciss: %p timedout\n", c); break; default: - printk(KERN_WARNING "cciss: cp %p returned " - "unknown status %x\n", cp, - ei->CommandStatus); + printk(KERN_WARNING "cciss: %p returned " + "unknown status %x\n", c, ei->CommandStatus); } } static int -cciss_scsi_do_inquiry(ctlr_info_t *c, unsigned char *scsi3addr, +cciss_scsi_do_inquiry(ctlr_info_t *h, unsigned char *scsi3addr, unsigned char page, unsigned char *buf, unsigned char bufsize) { int rc; - CommandList_struct *cp; + CommandList_struct *c; char cdb[6]; ErrorInfo_struct *ei; unsigned long flags; - spin_lock_irqsave(CCISS_LOCK(c->ctlr), flags); - cp = scsi_cmd_alloc(c); - spin_unlock_irqrestore(CCISS_LOCK(c->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); + c = scsi_cmd_alloc(h); + spin_unlock_irqrestore(&h->lock, flags); - if (cp == NULL) { /* trouble... */ + if (c == NULL) { /* trouble... */ printk("cmd_alloc returned NULL!\n"); return -1; } - ei = cp->err_info; + ei = c->err_info; cdb[0] = CISS_INQUIRY; cdb[1] = (page != 0); @@ -1060,24 +1054,24 @@ cciss_scsi_do_inquiry(ctlr_info_t *c, unsigned char *scsi3addr, cdb[3] = 0; cdb[4] = bufsize; cdb[5] = 0; - rc = cciss_scsi_do_simple_cmd(c, cp, scsi3addr, cdb, + rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr, cdb, 6, buf, bufsize, XFER_READ); if (rc != 0) return rc; /* something went wrong */ if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { - cciss_scsi_interpret_error(cp); + cciss_scsi_interpret_error(c); rc = -1; } - spin_lock_irqsave(CCISS_LOCK(c->ctlr), flags); - scsi_cmd_free(c, cp); - spin_unlock_irqrestore(CCISS_LOCK(c->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); + scsi_cmd_free(h, c); + spin_unlock_irqrestore(&h->lock, flags); return rc; } /* Get the device id from inquiry page 0x83 */ -static int cciss_scsi_get_device_id(ctlr_info_t *c, unsigned char *scsi3addr, +static int cciss_scsi_get_device_id(ctlr_info_t *h, unsigned char *scsi3addr, unsigned char *device_id, int buflen) { int rc; @@ -1088,7 +1082,7 @@ static int cciss_scsi_get_device_id(ctlr_info_t *c, unsigned char *scsi3addr, buf = kzalloc(64, GFP_KERNEL); if (!buf) return -1; - rc = cciss_scsi_do_inquiry(c, scsi3addr, 0x83, buf, 64); + rc = cciss_scsi_do_inquiry(h, scsi3addr, 0x83, buf, 64); if (rc == 0) memcpy(device_id, &buf[8], buflen); kfree(buf); @@ -1096,20 +1090,20 @@ static int cciss_scsi_get_device_id(ctlr_info_t *c, unsigned char *scsi3addr, } static int -cciss_scsi_do_report_phys_luns(ctlr_info_t *c, +cciss_scsi_do_report_phys_luns(ctlr_info_t *h, ReportLunData_struct *buf, int bufsize) { int rc; - CommandList_struct *cp; + CommandList_struct *c; unsigned char cdb[12]; unsigned char scsi3addr[8]; ErrorInfo_struct *ei; unsigned long flags; - spin_lock_irqsave(CCISS_LOCK(c->ctlr), flags); - cp = scsi_cmd_alloc(c); - spin_unlock_irqrestore(CCISS_LOCK(c->ctlr), flags); - if (cp == NULL) { /* trouble... */ + spin_lock_irqsave(&h->lock, flags); + c = scsi_cmd_alloc(h); + spin_unlock_irqrestore(&h->lock, flags); + if (c == NULL) { /* trouble... */ printk("cmd_alloc returned NULL!\n"); return -1; } @@ -1128,27 +1122,27 @@ cciss_scsi_do_report_phys_luns(ctlr_info_t *c, cdb[10] = 0; cdb[11] = 0; - rc = cciss_scsi_do_simple_cmd(c, cp, scsi3addr, + rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr, cdb, 12, (unsigned char *) buf, bufsize, XFER_READ); if (rc != 0) return rc; /* something went wrong */ - ei = cp->err_info; + ei = c->err_info; if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { - cciss_scsi_interpret_error(cp); + cciss_scsi_interpret_error(c); rc = -1; } - spin_lock_irqsave(CCISS_LOCK(c->ctlr), flags); - scsi_cmd_free(c, cp); - spin_unlock_irqrestore(CCISS_LOCK(c->ctlr), flags); + spin_lock_irqsave(&h->lock, flags); + scsi_cmd_free(h, c); + spin_unlock_irqrestore(&h->lock, flags); return rc; } static void -cciss_update_non_disk_devices(int cntl_num, int hostno) +cciss_update_non_disk_devices(ctlr_info_t *h, int hostno) { /* the idea here is we could get notified from /proc that some devices have changed, so we do a report @@ -1181,7 +1175,6 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) ReportLunData_struct *ld_buff; unsigned char *inq_buff; unsigned char scsi3addr[8]; - ctlr_info_t *c; __u32 num_luns=0; unsigned char *ch; struct cciss_scsi_dev_t *currentsd, *this_device; @@ -1189,7 +1182,6 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) int reportlunsize = sizeof(*ld_buff) + CISS_MAX_PHYS_LUN * 8; int i; - c = (ctlr_info_t *) hba[cntl_num]; ld_buff = kzalloc(reportlunsize, GFP_KERNEL); inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL); currentsd = kzalloc(sizeof(*currentsd) * @@ -1199,7 +1191,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) goto out; } this_device = ¤tsd[CCISS_MAX_SCSI_DEVS_PER_HBA]; - if (cciss_scsi_do_report_phys_luns(c, ld_buff, reportlunsize) == 0) { + if (cciss_scsi_do_report_phys_luns(h, ld_buff, reportlunsize) == 0) { ch = &ld_buff->LUNListLength[0]; num_luns = ((ch[0]<<24) | (ch[1]<<16) | (ch[2]<<8) | ch[3]) / 8; if (num_luns > CISS_MAX_PHYS_LUN) { @@ -1223,7 +1215,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE); memcpy(&scsi3addr[0], &ld_buff->LUN[i][0], 8); - if (cciss_scsi_do_inquiry(hba[cntl_num], scsi3addr, 0, inq_buff, + if (cciss_scsi_do_inquiry(h, scsi3addr, 0, inq_buff, (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) /* Inquiry failed (msg printed already) */ continue; /* so we will skip this device. */ @@ -1241,7 +1233,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) sizeof(this_device->revision)); memset(this_device->device_id, 0, sizeof(this_device->device_id)); - cciss_scsi_get_device_id(hba[cntl_num], scsi3addr, + cciss_scsi_get_device_id(h, scsi3addr, this_device->device_id, sizeof(this_device->device_id)); switch (this_device->devtype) @@ -1268,7 +1260,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) case 0x08: /* medium changer */ if (ncurrent >= CCISS_MAX_SCSI_DEVS_PER_HBA) { printk(KERN_INFO "cciss%d: %s ignored, " - "too many devices.\n", cntl_num, + "too many devices.\n", h->ctlr, scsi_device_type(this_device->devtype)); break; } @@ -1280,7 +1272,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno) } } - adjust_cciss_scsi_table(cntl_num, hostno, currentsd, ncurrent); + adjust_cciss_scsi_table(h, hostno, currentsd, ncurrent); out: kfree(inq_buff); kfree(ld_buff); @@ -1299,12 +1291,12 @@ is_keyword(char *ptr, int len, char *verb) // Thanks to ncr53c8xx.c } static int -cciss_scsi_user_command(int ctlr, int hostno, char *buffer, int length) +cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length) { int arg_len; if ((arg_len = is_keyword(buffer, length, "rescan")) != 0) - cciss_update_non_disk_devices(ctlr, hostno); + cciss_update_non_disk_devices(h, hostno); else return -EINVAL; return length; @@ -1321,20 +1313,16 @@ cciss_scsi_proc_info(struct Scsi_Host *sh, { int buflen, datalen; - ctlr_info_t *ci; + ctlr_info_t *h; int i; - int cntl_num; - - ci = (ctlr_info_t *) sh->hostdata[0]; - if (ci == NULL) /* This really shouldn't ever happen. */ + h = (ctlr_info_t *) sh->hostdata[0]; + if (h == NULL) /* This really shouldn't ever happen. */ return -EINVAL; - cntl_num = ci->ctlr; /* Get our index into the hba[] array */ - if (func == 0) { /* User is reading from /proc/scsi/ciss*?/?* */ buflen = sprintf(buffer, "cciss%d: SCSI host: %d\n", - cntl_num, sh->host_no); + h->ctlr, sh->host_no); /* this information is needed by apps to know which cciss device corresponds to which scsi host number without @@ -1344,8 +1332,9 @@ cciss_scsi_proc_info(struct Scsi_Host *sh, this info is for an app to be able to use to know how to get them back in sync. */ - for (i=0;ictlr].ndevices; i++) { + struct cciss_scsi_dev_t *sd = + &ccissscsi[h->ctlr].dev[i]; buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d " "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", sh->host_no, sd->bus, sd->target, sd->lun, @@ -1363,15 +1352,15 @@ cciss_scsi_proc_info(struct Scsi_Host *sh, *start = buffer + offset; return(datalen); } else /* User is writing to /proc/scsi/cciss*?/?* ... */ - return cciss_scsi_user_command(cntl_num, sh->host_no, + return cciss_scsi_user_command(h, sh->host_no, buffer, length); } /* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci dma mapping and fills in the scatter gather entries of the - cciss command, cp. */ + cciss command, c. */ -static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, +static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *c, struct scsi_cmnd *cmd) { unsigned int len; @@ -1385,7 +1374,7 @@ static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, chained = 0; sg_index = 0; - curr_sg = cp->SG; + curr_sg = c->SG; request_nsgs = scsi_dma_map(cmd); if (request_nsgs) { scsi_for_each_sg(cmd, sg, request_nsgs, i) { @@ -1393,7 +1382,7 @@ static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, !chained && request_nsgs - i > 1) { chained = 1; sg_index = 0; - curr_sg = sa->cmd_sg_list[cp->cmdindex]; + curr_sg = sa->cmd_sg_list[c->cmdindex]; } addr64 = (__u64) sg_dma_address(sg); len = sg_dma_len(sg); @@ -1406,19 +1395,19 @@ static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, ++sg_index; } if (chained) - cciss_map_sg_chain_block(h, cp, - sa->cmd_sg_list[cp->cmdindex], + cciss_map_sg_chain_block(h, c, + sa->cmd_sg_list[c->cmdindex], (request_nsgs - (h->max_cmd_sgentries - 1)) * sizeof(SGDescriptor_struct)); } /* track how many SG entries we are using */ if (request_nsgs > h->maxSG) h->maxSG = request_nsgs; - cp->Header.SGTotal = (__u8) request_nsgs + chained; + c->Header.SGTotal = (__u8) request_nsgs + chained; if (request_nsgs > h->max_cmd_sgentries) - cp->Header.SGList = h->max_cmd_sgentries; + c->Header.SGList = h->max_cmd_sgentries; else - cp->Header.SGList = cp->Header.SGTotal; + c->Header.SGList = c->Header.SGTotal; return; } @@ -1426,18 +1415,17 @@ static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *cp, static int cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *)) { - ctlr_info_t *c; - int ctlr, rc; + ctlr_info_t *h; + int rc; unsigned char scsi3addr[8]; - CommandList_struct *cp; + CommandList_struct *c; unsigned long flags; // Get the ptr to our adapter structure (hba[i]) out of cmd->host. // We violate cmd->host privacy here. (Is there another way?) - c = (ctlr_info_t *) cmd->device->host->hostdata[0]; - ctlr = c->ctlr; + h = (ctlr_info_t *) cmd->device->host->hostdata[0]; - rc = lookup_scsi3addr(ctlr, cmd->device->channel, cmd->device->id, + rc = lookup_scsi3addr(h, cmd->device->channel, cmd->device->id, cmd->device->lun, scsi3addr); if (rc != 0) { /* the scsi nexus does not match any that we presented... */ @@ -1449,18 +1437,13 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd return 0; } - /* printk("cciss_queue_command, p=%p, cmd=0x%02x, c%db%dt%dl%d\n", - cmd, cmd->cmnd[0], ctlr, cmd->channel, cmd->target, cmd->lun);*/ - // printk("q:%p:c%db%dt%dl%d ", cmd, ctlr, cmd->channel, - // cmd->target, cmd->lun); - /* Ok, we have a reasonable scsi nexus, so send the cmd down, and see what the device thinks of it. */ - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - cp = scsi_cmd_alloc(c); - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); - if (cp == NULL) { /* trouble... */ + spin_lock_irqsave(&h->lock, flags); + c = scsi_cmd_alloc(h); + spin_unlock_irqrestore(&h->lock, flags); + if (c == NULL) { /* trouble... */ printk("scsi_cmd_alloc returned NULL!\n"); /* FIXME: next 3 lines are -> BAD! <- */ cmd->result = DID_NO_CONNECT << 16; @@ -1472,35 +1455,41 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd cmd->scsi_done = done; // save this for use by completion code - // save cp in case we have to abort it - cmd->host_scribble = (unsigned char *) cp; + /* save c in case we have to abort it */ + cmd->host_scribble = (unsigned char *) c; - cp->cmd_type = CMD_SCSI; - cp->scsi_cmd = cmd; - cp->Header.ReplyQueue = 0; // unused in simple mode - memcpy(&cp->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); - cp->Header.Tag.lower = cp->busaddr; // Use k. address of cmd as tag + c->cmd_type = CMD_SCSI; + c->scsi_cmd = cmd; + c->Header.ReplyQueue = 0; /* unused in simple mode */ + memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); + c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */ // Fill in the request block... - cp->Request.Timeout = 0; - memset(cp->Request.CDB, 0, sizeof(cp->Request.CDB)); - BUG_ON(cmd->cmd_len > sizeof(cp->Request.CDB)); - cp->Request.CDBLen = cmd->cmd_len; - memcpy(cp->Request.CDB, cmd->cmnd, cmd->cmd_len); - cp->Request.Type.Type = TYPE_CMD; - cp->Request.Type.Attribute = ATTR_SIMPLE; + c->Request.Timeout = 0; + memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); + BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB)); + c->Request.CDBLen = cmd->cmd_len; + memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len); + c->Request.Type.Type = TYPE_CMD; + c->Request.Type.Attribute = ATTR_SIMPLE; switch(cmd->sc_data_direction) { - case DMA_TO_DEVICE: cp->Request.Type.Direction = XFER_WRITE; break; - case DMA_FROM_DEVICE: cp->Request.Type.Direction = XFER_READ; break; - case DMA_NONE: cp->Request.Type.Direction = XFER_NONE; break; + case DMA_TO_DEVICE: + c->Request.Type.Direction = XFER_WRITE; + break; + case DMA_FROM_DEVICE: + c->Request.Type.Direction = XFER_READ; + break; + case DMA_NONE: + c->Request.Type.Direction = XFER_NONE; + break; case DMA_BIDIRECTIONAL: // This can happen if a buggy application does a scsi passthru // and sets both inlen and outlen to non-zero. ( see // ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() ) - cp->Request.Type.Direction = XFER_RSVD; + c->Request.Type.Direction = XFER_RSVD; // This is technically wrong, and cciss controllers should // reject it with CMD_INVALID, which is the most correct // response, but non-fibre backends appear to let it @@ -1516,14 +1505,13 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd BUG(); break; } - cciss_scatter_gather(c, cp, cmd); - enqueue_cmd_and_start_io(c, cp); + cciss_scatter_gather(h, c, cmd); + enqueue_cmd_and_start_io(h, c); /* the cmd'll come back via intr handler in complete_scsi_command() */ return 0; } -static void -cciss_unregister_scsi(int ctlr) +static void cciss_unregister_scsi(ctlr_info_t *h) { struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; @@ -1531,59 +1519,59 @@ cciss_unregister_scsi(int ctlr) /* we are being forcibly unloaded, and may not refuse. */ - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - sa = hba[ctlr]->scsi_ctlr; + spin_lock_irqsave(&h->lock, flags); + sa = h->scsi_ctlr; stk = &sa->cmd_stack; /* if we weren't ever actually registered, don't unregister */ if (sa->registered) { - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(&h->lock, flags); scsi_remove_host(sa->scsi_host); scsi_host_put(sa->scsi_host); - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); + spin_lock_irqsave(&h->lock, flags); } /* set scsi_host to NULL so our detect routine will find us on register */ sa->scsi_host = NULL; - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); - scsi_cmd_stack_free(ctlr); + spin_unlock_irqrestore(&h->lock, flags); + scsi_cmd_stack_free(h); kfree(sa); } -static int -cciss_engage_scsi(int ctlr) +static int cciss_engage_scsi(ctlr_info_t *h) { struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; unsigned long flags; - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - sa = hba[ctlr]->scsi_ctlr; + spin_lock_irqsave(&h->lock, flags); + sa = h->scsi_ctlr; stk = &sa->cmd_stack; if (sa->registered) { - printk("cciss%d: SCSI subsystem already engaged.\n", ctlr); - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + printk(KERN_INFO "cciss%d: SCSI subsystem already engaged.\n", + h->ctlr); + spin_unlock_irqrestore(&h->lock, flags); return -ENXIO; } sa->registered = 1; - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); - cciss_update_non_disk_devices(ctlr, -1); - cciss_scsi_detect(ctlr); + spin_unlock_irqrestore(&h->lock, flags); + cciss_update_non_disk_devices(h, -1); + cciss_scsi_detect(h); return 0; } static void -cciss_seq_tape_report(struct seq_file *seq, int ctlr) +cciss_seq_tape_report(struct seq_file *seq, ctlr_info_t *h) { unsigned long flags; - CPQ_TAPE_LOCK(ctlr, flags); + CPQ_TAPE_LOCK(h, flags); seq_printf(seq, "Sequential access devices: %d\n\n", - ccissscsi[ctlr].ndevices); - CPQ_TAPE_UNLOCK(ctlr, flags); + ccissscsi[h->ctlr].ndevices); + CPQ_TAPE_UNLOCK(h, flags); } static int wait_for_device_to_become_ready(ctlr_info_t *h, @@ -1615,7 +1603,7 @@ static int wait_for_device_to_become_ready(ctlr_info_t *h, waittime = waittime * 2; /* Send the Test Unit Ready */ - rc = fill_cmd(c, TEST_UNIT_READY, h->ctlr, NULL, 0, 0, + rc = fill_cmd(h, c, TEST_UNIT_READY, NULL, 0, 0, lunaddr, TYPE_CMD); if (rc == 0) rc = sendcmd_withirq_core(h, c, 0); @@ -1672,26 +1660,25 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_in_trouble; unsigned char lunaddr[8]; - ctlr_info_t *c; - int ctlr; + ctlr_info_t *h; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; - if (c == NULL) /* paranoia */ + h = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; + if (h == NULL) /* paranoia */ return FAILED; - ctlr = c->ctlr; - printk(KERN_WARNING "cciss%d: resetting tape drive or medium changer.\n", ctlr); + printk(KERN_WARNING + "cciss%d: resetting tape drive or medium changer.\n", h->ctlr); /* find the command that's giving us trouble */ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble; if (cmd_in_trouble == NULL) /* paranoia */ return FAILED; memcpy(lunaddr, &cmd_in_trouble->Header.LUN.LunAddrBytes[0], 8); /* send a reset to the SCSI LUN which the command was sent to */ - rc = sendcmd_withirq(CCISS_RESET_MSG, ctlr, NULL, 0, 0, lunaddr, + rc = sendcmd_withirq(h, CCISS_RESET_MSG, NULL, 0, 0, lunaddr, TYPE_MSG); - if (rc == 0 && wait_for_device_to_become_ready(c, lunaddr) == 0) + if (rc == 0 && wait_for_device_to_become_ready(h, lunaddr) == 0) return SUCCESS; - printk(KERN_WARNING "cciss%d: resetting device failed.\n", ctlr); + printk(KERN_WARNING "cciss%d: resetting device failed.\n", h->ctlr); return FAILED; } @@ -1700,22 +1687,20 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_to_abort; unsigned char lunaddr[8]; - ctlr_info_t *c; - int ctlr; + ctlr_info_t *h; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; - if (c == NULL) /* paranoia */ + h = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; + if (h == NULL) /* paranoia */ return FAILED; - ctlr = c->ctlr; - printk(KERN_WARNING "cciss%d: aborting tardy SCSI cmd\n", ctlr); + printk(KERN_WARNING "cciss%d: aborting tardy SCSI cmd\n", h->ctlr); /* find the command to be aborted */ cmd_to_abort = (CommandList_struct *) scsicmd->host_scribble; if (cmd_to_abort == NULL) /* paranoia */ return FAILED; memcpy(lunaddr, &cmd_to_abort->Header.LUN.LunAddrBytes[0], 8); - rc = sendcmd_withirq(CCISS_ABORT_MSG, ctlr, &cmd_to_abort->Header.Tag, + rc = sendcmd_withirq(h, CCISS_ABORT_MSG, &cmd_to_abort->Header.Tag, 0, 0, lunaddr, TYPE_MSG); if (rc == 0) return SUCCESS;