diff options
Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym_glue.c')
| -rw-r--r-- | drivers/scsi/sym53c8xx_2/sym_glue.c | 352 |
1 files changed, 175 insertions, 177 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index d39107b7669..6d3ee1ab636 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -505,7 +505,7 @@ void sym_log_bus_error(struct Scsi_Host *shost) * queuecommand method. Entered with the host adapter lock held and * interrupts disabled. */ -static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, +static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { struct sym_hcb *np = SYM_SOFTC_PTR(cmd); @@ -519,8 +519,8 @@ static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, * Shorten our settle_time if needed for * this command not to time out. */ - if (np->s.settle_time_valid && cmd->timeout_per_command) { - unsigned long tlimit = jiffies + cmd->timeout_per_command; + if (np->s.settle_time_valid && cmd->request->timeout) { + unsigned long tlimit = jiffies + cmd->request->timeout; tlimit -= SYM_CONF_TIMER_INTERVAL*2; if (time_after(np->s.settle_time, tlimit)) { np->s.settle_time = tlimit; @@ -536,6 +536,8 @@ static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, return 0; } +static DEF_SCSI_QCMD(sym53c8xx_queue_command) + /* * Linux entry point of the interrupt handler. */ @@ -737,11 +739,14 @@ static int sym53c8xx_slave_alloc(struct scsi_device *sdev) struct sym_hcb *np = sym_get_hcb(sdev->host); struct sym_tcb *tp = &np->target[sdev->id]; struct sym_lcb *lp; + unsigned long flags; + int error; if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) return -ENXIO; - tp->starget = sdev->sdev_target; + spin_lock_irqsave(np->s.host->host_lock, flags); + /* * Fail the device init if the device is flagged NOSCAN at BOOT in * the NVRAM. This may speed up boot and maintain coherency with @@ -753,26 +758,37 @@ static int sym53c8xx_slave_alloc(struct scsi_device *sdev) if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; - starget_printk(KERN_INFO, tp->starget, + starget_printk(KERN_INFO, sdev->sdev_target, "Scan at boot disabled in NVRAM\n"); - return -ENXIO; + error = -ENXIO; + goto out; } if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { - if (sdev->lun != 0) - return -ENXIO; - starget_printk(KERN_INFO, tp->starget, + if (sdev->lun != 0) { + error = -ENXIO; + goto out; + } + starget_printk(KERN_INFO, sdev->sdev_target, "Multiple LUNs disabled in NVRAM\n"); } lp = sym_alloc_lcb(np, sdev->id, sdev->lun); - if (!lp) - return -ENOMEM; + if (!lp) { + error = -ENOMEM; + goto out; + } + if (tp->nlcb == 1) + tp->starget = sdev->sdev_target; spi_min_period(tp->starget) = tp->usr_period; spi_max_width(tp->starget) = tp->usr_width; - return 0; + error = 0; +out: + spin_unlock_irqrestore(np->s.host->host_lock, flags); + + return error; } /* @@ -792,9 +808,9 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) /* * Select queue depth from driver setup. - * Donnot use more than configured by user. - * Use at least 2. - * Donnot use more than our maximum. + * Do not use more than configured by user. + * Use at least 1. + * Do not use more than our maximum. */ reqtags = sym_driver_setup.max_tag; if (reqtags > tp->usrtags) @@ -803,7 +819,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) reqtags = 0; if (reqtags > SYM_CONF_MAX_TAG) reqtags = SYM_CONF_MAX_TAG; - depth_to_use = reqtags ? reqtags : 2; + depth_to_use = reqtags ? reqtags : 1; scsi_adjust_queue_depth(sdev, sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, depth_to_use); @@ -819,12 +835,38 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) static void sym53c8xx_slave_destroy(struct scsi_device *sdev) { struct sym_hcb *np = sym_get_hcb(sdev->host); - struct sym_lcb *lp = sym_lp(&np->target[sdev->id], sdev->lun); + struct sym_tcb *tp = &np->target[sdev->id]; + struct sym_lcb *lp = sym_lp(tp, sdev->lun); + unsigned long flags; + + /* if slave_alloc returned before allocating a sym_lcb, return */ + if (!lp) + return; + + spin_lock_irqsave(np->s.host->host_lock, flags); - if (lp->itlq_tbl) - sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK * 4, "ITLQ_TBL"); - kfree(lp->cb_tags); - sym_mfree_dma(lp, sizeof(*lp), "LCB"); + if (lp->busy_itlq || lp->busy_itl) { + /* + * This really shouldn't happen, but we can't return an error + * so let's try to stop all on-going I/O. + */ + starget_printk(KERN_WARNING, tp->starget, + "Removing busy LCB (%d)\n", sdev->lun); + sym_reset_scsi_bus(np, 1); + } + + if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) { + /* + * It was the last unit for this target. + */ + tp->head.sval = 0; + tp->head.wval = np->rv_scntl3; + tp->head.uval = 0; + tp->tgoal.check_nego = 1; + tp->starget = NULL; + } + + spin_unlock_irqrestore(np->s.host->host_lock, flags); } /* @@ -890,6 +932,8 @@ static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) if (!((uc->target >> t) & 1)) continue; tp = &np->target[t]; + if (!tp->nlcb) + continue; switch (uc->cmd) { @@ -946,7 +990,7 @@ static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) } } -static int skip_spaces(char *ptr, int len) +static int sym_skip_spaces(char *ptr, int len) { int cnt, c; @@ -974,7 +1018,7 @@ static int is_keyword(char *ptr, int len, char *verb) } #define SKIP_SPACES(ptr, len) \ - if ((arg_len = skip_spaces(ptr, len)) < 1) \ + if ((arg_len = sym_skip_spaces(ptr, len)) < 1) \ return -EINVAL; \ ptr += arg_len; len -= arg_len; @@ -1127,123 +1171,61 @@ printk("sym_user_command: data=%ld\n", uc->data); #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ -#ifdef SYM_LINUX_USER_INFO_SUPPORT -/* - * Informations through the proc file system. - */ -struct info_str { - char *buffer; - int length; - int offset; - int pos; -}; - -static void copy_mem_info(struct info_str *info, char *data, int len) -{ - if (info->pos + len > info->length) - len = info->length - info->pos; - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - if (info->pos < info->offset) { - data += (info->offset - info->pos); - len -= (info->offset - info->pos); - } - - if (len > 0) { - memcpy(info->buffer + info->pos, data, len); - info->pos += len; - } -} - -static int copy_info(struct info_str *info, char *fmt, ...) -{ - va_list args; - char buf[81]; - int len; - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - copy_mem_info(info, buf, len); - return len; -} - /* * Copy formatted information into the input buffer. */ -static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len) +static int sym_show_info(struct seq_file *m, struct Scsi_Host *shost) { +#ifdef SYM_LINUX_USER_INFO_SUPPORT struct sym_data *sym_data = shost_priv(shost); struct pci_dev *pdev = sym_data->pdev; struct sym_hcb *np = sym_data->ncb; - struct info_str info; - info.buffer = ptr; - info.length = len; - info.offset = offset; - info.pos = 0; - - copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " - "revision id 0x%x\n", np->s.chip_name, - pdev->device, pdev->revision); - copy_info(&info, "At PCI address %s, IRQ %u\n", + seq_printf(m, "Chip " NAME53C "%s, device id 0x%x, " + "revision id 0x%x\n", np->s.chip_name, + pdev->device, pdev->revision); + seq_printf(m, "At PCI address %s, IRQ %u\n", pci_name(pdev), pdev->irq); - copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", - (int) (np->minsync_dt ? np->minsync_dt : np->minsync), - np->maxwide ? "Wide" : "Narrow", - np->minsync_dt ? ", DT capable" : ""); + seq_printf(m, "Min. period factor %d, %s SCSI BUS%s\n", + (int) (np->minsync_dt ? np->minsync_dt : np->minsync), + np->maxwide ? "Wide" : "Narrow", + np->minsync_dt ? ", DT capable" : ""); - copy_info(&info, "Max. started commands %d, " - "max. commands per LUN %d\n", - SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); + seq_printf(m, "Max. started commands %d, " + "max. commands per LUN %d\n", + SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); - return info.pos > info.offset? info.pos - info.offset : 0; -} + return 0; +#else + return -EINVAL; #endif /* SYM_LINUX_USER_INFO_SUPPORT */ +} + +#endif /* SYM_LINUX_PROC_INFO_SUPPORT */ /* - * Entry point of the scsi proc fs of the driver. - * - func = 0 means read (returns adapter infos) - * - func = 1 means write (not yet merget from sym53c8xx) + * Free resources claimed by sym_iomap_device(). Note that + * sym_free_resources() should be used instead of this function after calling + * sym_attach(). */ -static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer, - char **start, off_t offset, int length, int func) +static void sym_iounmap_device(struct sym_device *device) { - int retv; - - if (func) { -#ifdef SYM_LINUX_USER_COMMAND_SUPPORT - retv = sym_user_command(shost, buffer, length); -#else - retv = -EINVAL; -#endif - } else { - if (start) - *start = buffer; -#ifdef SYM_LINUX_USER_INFO_SUPPORT - retv = sym_host_info(shost, buffer, offset, length); -#else - retv = -EINVAL; -#endif - } - - return retv; + if (device->s.ioaddr) + pci_iounmap(device->pdev, device->s.ioaddr); + if (device->s.ramaddr) + pci_iounmap(device->pdev, device->s.ramaddr); } -#endif /* SYM_LINUX_PROC_INFO_SUPPORT */ /* * Free controller resources. */ -static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev) +static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev, + int do_free_irq) { /* * Free O/S specific resources. */ - if (pdev->irq) + if (do_free_irq) free_irq(pdev->irq, np->s.host); if (np->s.ioaddr) pci_iounmap(pdev, np->s.ioaddr); @@ -1266,15 +1248,16 @@ static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev) * If all is OK, install interrupt handling and * start the timer daemon. */ -static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, - int unit, struct sym_device *dev) +static struct Scsi_Host *sym_attach(struct scsi_host_template *tpnt, int unit, + struct sym_device *dev) { struct sym_data *sym_data; struct sym_hcb *np = NULL; - struct Scsi_Host *shost; + struct Scsi_Host *shost = NULL; struct pci_dev *pdev = dev->pdev; unsigned long flags; struct sym_fw *fw; + int do_free_irq = 0; printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", unit, dev->chip.name, pdev->revision, pci_name(pdev), @@ -1285,11 +1268,11 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, */ fw = sym_find_firmware(&dev->chip); if (!fw) - return NULL; + goto attach_failed; shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); if (!shost) - return NULL; + goto attach_failed; sym_data = shost_priv(shost); /* @@ -1319,6 +1302,10 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, np->maxoffs = dev->chip.offset_max; np->maxburst = dev->chip.burst_max; np->myaddr = dev->host_id; + np->mmio_ba = (u32)dev->mmio_base; + np->ram_ba = (u32)dev->ram_base; + np->s.ioaddr = dev->s.ioaddr; + np->s.ramaddr = dev->s.ramaddr; /* * Edit its name. @@ -1329,27 +1316,11 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && !pci_set_dma_mask(pdev, DMA_DAC_MASK)) { set_dac(np); - } else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { + } else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { printf_warning("%s: No suitable DMA available\n", sym_name(np)); goto attach_failed; } - /* - * Try to map the controller chip to - * virtual and physical memory. - */ - np->mmio_ba = (u32)dev->mmio_base; - np->s.ioaddr = dev->s.ioaddr; - np->s.ramaddr = dev->s.ramaddr; - - /* - * Map on-chip RAM if present and supported. - */ - if (!(np->features & FE_RAM)) - dev->ram_base = 0; - if (dev->ram_base) - np->ram_ba = (u32)dev->ram_base; - if (sym_hcb_attach(shost, fw, dev->nvram)) goto attach_failed; @@ -1364,6 +1335,7 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, sym_name(np), pdev->irq); goto attach_failed; } + do_free_irq = 1; /* * After SCSI devices have been opened, we cannot @@ -1416,12 +1388,13 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); spin_unlock_irqrestore(shost->host_lock, flags); attach_failed: - if (!shost) - return NULL; - printf_info("%s: giving up ...\n", sym_name(np)); + printf_info("sym%d: giving up ...\n", unit); if (np) - sym_free_resources(np, pdev); - scsi_host_put(shost); + sym_free_resources(np, pdev, do_free_irq); + else + sym_iounmap_device(dev); + if (shost) + scsi_host_put(shost); return NULL; } @@ -1431,7 +1404,7 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, * Detect and try to read SYMBIOS and TEKRAM NVRAM. */ #if SYM_CONF_NVRAM_SUPPORT -static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) +static void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) { devp->nvram = nvp; nvp->type = 0; @@ -1444,7 +1417,7 @@ static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) } #endif /* SYM_CONF_NVRAM_SUPPORT */ -static int __devinit sym_check_supported(struct sym_device *device) +static int sym_check_supported(struct sym_device *device) { struct sym_chip *chip; struct pci_dev *pdev = device->pdev; @@ -1481,7 +1454,7 @@ static int __devinit sym_check_supported(struct sym_device *device) * Ignore Symbios chips controlled by various RAID controllers. * These controllers set value 0x52414944 at RAM end - 16. */ -static int __devinit sym_check_raid(struct sym_device *device) +static int sym_check_raid(struct sym_device *device) { unsigned int ram_size, ram_val; @@ -1502,7 +1475,7 @@ static int __devinit sym_check_raid(struct sym_device *device) return -ENODEV; } -static int __devinit sym_set_workarounds(struct sym_device *device) +static int sym_set_workarounds(struct sym_device *device) { struct sym_chip *chip = &device->chip; struct pci_dev *pdev = device->pdev; @@ -1550,30 +1523,28 @@ static int __devinit sym_set_workarounds(struct sym_device *device) } /* - * Read and check the PCI configuration for any detected NCR - * boards and save data for attaching after all boards have - * been detected. + * Map HBA registers and on-chip SRAM (if present). */ -static void __devinit -sym_init_device(struct pci_dev *pdev, struct sym_device *device) +static int sym_iomap_device(struct sym_device *device) { - int i = 2; + struct pci_dev *pdev = device->pdev; struct pci_bus_region bus_addr; + int i = 2; - device->host_id = SYM_SETUP_HOST_ID; - device->pdev = pdev; - - pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); + pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]); device->mmio_base = bus_addr.start; - /* - * If the BAR is 64-bit, resource 2 will be occupied by the - * upper 32 bits - */ - if (!pdev->resource[i].flags) - i++; - pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); - device->ram_base = bus_addr.start; + if (device->chip.features & FE_RAM) { + /* + * If the BAR is 64-bit, resource 2 will be occupied by the + * upper 32 bits + */ + if (!pdev->resource[i].flags) + i++; + pcibios_resource_to_bus(pdev->bus, &bus_addr, + &pdev->resource[i]); + device->ram_base = bus_addr.start; + } #ifdef CONFIG_SCSI_SYM53C8XX_MMIO if (device->mmio_base) @@ -1583,9 +1554,21 @@ sym_init_device(struct pci_dev *pdev, struct sym_device *device) if (!device->s.ioaddr) device->s.ioaddr = pci_iomap(pdev, 0, pci_resource_len(pdev, 0)); - if (device->ram_base) + if (!device->s.ioaddr) { + dev_err(&pdev->dev, "could not map registers; giving up.\n"); + return -EIO; + } + if (device->ram_base) { device->s.ramaddr = pci_iomap(pdev, i, pci_resource_len(pdev, i)); + if (!device->s.ramaddr) { + dev_warn(&pdev->dev, + "could not map SRAM; continuing anyway.\n"); + device->ram_base = 0; + } + } + + return 0; } /* @@ -1659,7 +1642,8 @@ static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) udelay(10); OUTB(np, nc_istat, 0); - sym_free_resources(np, pdev); + sym_free_resources(np, pdev, 1); + scsi_host_put(shost); return 1; } @@ -1683,22 +1667,28 @@ static struct scsi_host_template sym2_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xFFFF, #ifdef SYM_LINUX_PROC_INFO_SUPPORT - .proc_info = sym53c8xx_proc_info, + .show_info = sym_show_info, +#ifdef SYM_LINUX_USER_COMMAND_SUPPORT + .write_info = sym_user_command, +#endif .proc_name = NAME53C8XX, #endif }; static int attach_count; -static int __devinit sym2_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) +static int sym2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct sym_device sym_dev; struct sym_nvram nvram; struct Scsi_Host *shost; + int do_iounmap = 0; + int do_disable_device = 1; memset(&sym_dev, 0, sizeof(sym_dev)); memset(&nvram, 0, sizeof(nvram)); + sym_dev.pdev = pdev; + sym_dev.host_id = SYM_SETUP_HOST_ID; if (pci_enable_device(pdev)) goto leave; @@ -1708,12 +1698,17 @@ static int __devinit sym2_probe(struct pci_dev *pdev, if (pci_request_regions(pdev, NAME53C8XX)) goto disable; - sym_init_device(pdev, &sym_dev); if (sym_check_supported(&sym_dev)) goto free; - if (sym_check_raid(&sym_dev)) - goto leave; /* Don't disable the device */ + if (sym_iomap_device(&sym_dev)) + goto free; + do_iounmap = 1; + + if (sym_check_raid(&sym_dev)) { + do_disable_device = 0; /* Don't disable the device */ + goto free; + } if (sym_set_workarounds(&sym_dev)) goto free; @@ -1722,6 +1717,7 @@ static int __devinit sym2_probe(struct pci_dev *pdev, sym_get_nvram(&sym_dev, &nvram); + do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */ shost = sym_attach(&sym2_template, attach_count, &sym_dev); if (!shost) goto free; @@ -1737,9 +1733,12 @@ static int __devinit sym2_probe(struct pci_dev *pdev, detach: sym_detach(pci_get_drvdata(pdev), pdev); free: + if (do_iounmap) + sym_iounmap_device(&sym_dev); pci_release_regions(pdev); disable: - pci_disable_device(pdev); + if (do_disable_device) + pci_disable_device(pdev); leave: return -ENODEV; } @@ -1749,7 +1748,6 @@ static void sym2_remove(struct pci_dev *pdev) struct Scsi_Host *shost = pci_get_drvdata(pdev); scsi_remove_host(shost); - scsi_host_put(shost); sym_detach(shost, pdev); pci_release_regions(pdev); pci_disable_device(pdev); @@ -1797,7 +1795,7 @@ static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) * * This routine is similar to sym_set_workarounds(), except * that, at this point, we already know that the device was - * succesfully intialized at least once before, and so most + * successfully initialized at least once before, and so most * of the steps taken there are un-needed here. */ static void sym2_reset_workarounds(struct pci_dev *pdev) @@ -2004,7 +2002,7 @@ static struct spi_function_template sym2_transport_functions = { .get_signalling = sym2_get_signalling, }; -static struct pci_device_id sym2_id_table[] __devinitdata = { +static struct pci_device_id sym2_id_table[] = { { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, @@ -2044,7 +2042,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = { MODULE_DEVICE_TABLE(pci, sym2_id_table); -static struct pci_error_handlers sym2_err_handler = { +static const struct pci_error_handlers sym2_err_handler = { .error_detected = sym2_io_error_detected, .mmio_enabled = sym2_io_slot_dump, .slot_reset = sym2_io_slot_reset, |
