diff options
Diffstat (limited to 'kernel/drivers/scsi/dpt_i2o.c')
| -rw-r--r-- | kernel/drivers/scsi/dpt_i2o.c | 3612 |
1 files changed, 3612 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/dpt_i2o.c b/kernel/drivers/scsi/dpt_i2o.c new file mode 100644 index 000000000..2806cfbec --- /dev/null +++ b/kernel/drivers/scsi/dpt_i2o.c @@ -0,0 +1,3612 @@ +/*************************************************************************** + dpti.c - description + ------------------- + begin : Thu Sep 7 2000 + copyright : (C) 2000 by Adaptec + + July 30, 2001 First version being submitted + for inclusion in the kernel. V2.4 + + See Documentation/scsi/dpti.txt for history, notes, license info + and credits + ***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ +/*************************************************************************** + * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp> + - Support 2.6 kernel and DMA-mapping + - ioctl fix for raid tools + - use schedule_timeout in long long loop + **************************************************************************/ + +/*#define DEBUG 1 */ +/*#define UARTDELAY 1 */ + +#include <linux/module.h> + +MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn"); +MODULE_DESCRIPTION("Adaptec I2O RAID Driver"); + +//////////////////////////////////////////////////////////////// + +#include <linux/ioctl.h> /* For SCSI-Passthrough */ +#include <asm/uaccess.h> + +#include <linux/stat.h> +#include <linux/slab.h> /* for kmalloc() */ +#include <linux/pci.h> /* for PCI support */ +#include <linux/proc_fs.h> +#include <linux/blkdev.h> +#include <linux/delay.h> /* for udelay */ +#include <linux/interrupt.h> +#include <linux/kernel.h> /* for printk */ +#include <linux/sched.h> +#include <linux/reboot.h> +#include <linux/spinlock.h> +#include <linux/dma-mapping.h> + +#include <linux/timer.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/mutex.h> + +#include <asm/processor.h> /* for boot_cpu_data */ +#include <asm/pgtable.h> +#include <asm/io.h> /* for virt_to_bus, etc. */ + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> + +#include "dpt/dptsig.h" +#include "dpti.h" + +/*============================================================================ + * Create a binary signature - this is read by dptsig + * Needed for our management apps + *============================================================================ + */ +static DEFINE_MUTEX(adpt_mutex); +static dpt_sig_S DPTI_sig = { + {'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION, +#ifdef __i386__ + PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM, +#elif defined(__ia64__) + PROC_INTEL, PROC_IA64, +#elif defined(__sparc__) + PROC_ULTRASPARC, PROC_ULTRASPARC, +#elif defined(__alpha__) + PROC_ALPHA, PROC_ALPHA, +#else + (-1),(-1), +#endif + FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL, + ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION, + DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver" +}; + + + + +/*============================================================================ + * Globals + *============================================================================ + */ + +static DEFINE_MUTEX(adpt_configuration_lock); + +static struct i2o_sys_tbl *sys_tbl; +static dma_addr_t sys_tbl_pa; +static int sys_tbl_ind; +static int sys_tbl_len; + +static adpt_hba* hba_chain = NULL; +static int hba_count = 0; + +static struct class *adpt_sysfs_class; + +static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long); +#ifdef CONFIG_COMPAT +static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long); +#endif + +static const struct file_operations adpt_fops = { + .unlocked_ioctl = adpt_unlocked_ioctl, + .open = adpt_open, + .release = adpt_close, +#ifdef CONFIG_COMPAT + .compat_ioctl = compat_adpt_ioctl, +#endif + .llseek = noop_llseek, +}; + +/* Structures and definitions for synchronous message posting. + * See adpt_i2o_post_wait() for description + * */ +struct adpt_i2o_post_wait_data +{ + int status; + u32 id; + adpt_wait_queue_head_t *wq; + struct adpt_i2o_post_wait_data *next; +}; + +static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL; +static u32 adpt_post_wait_id = 0; +static DEFINE_SPINLOCK(adpt_post_wait_lock); + + +/*============================================================================ + * Functions + *============================================================================ + */ + +static inline int dpt_dma64(adpt_hba *pHba) +{ + return (sizeof(dma_addr_t) > 4 && (pHba)->dma64); +} + +static inline u32 dma_high(dma_addr_t addr) +{ + return upper_32_bits(addr); +} + +static inline u32 dma_low(dma_addr_t addr) +{ + return (u32)addr; +} + +static u8 adpt_read_blink_led(adpt_hba* host) +{ + if (host->FwDebugBLEDflag_P) { + if( readb(host->FwDebugBLEDflag_P) == 0xbc ){ + return readb(host->FwDebugBLEDvalue_P); + } + } + return 0; +} + +/*============================================================================ + * Scsi host template interface functions + *============================================================================ + */ + +static struct pci_device_id dptids[] = { + { PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + { PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + { 0, } +}; +MODULE_DEVICE_TABLE(pci,dptids); + +static int adpt_detect(struct scsi_host_template* sht) +{ + struct pci_dev *pDev = NULL; + adpt_hba *pHba; + adpt_hba *next; + + PINFO("Detecting Adaptec I2O RAID controllers...\n"); + + /* search for all Adatpec I2O RAID cards */ + while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) { + if(pDev->device == PCI_DPT_DEVICE_ID || + pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){ + if(adpt_install_hba(sht, pDev) ){ + PERROR("Could not Init an I2O RAID device\n"); + PERROR("Will not try to detect others.\n"); + return hba_count-1; + } + pci_dev_get(pDev); + } + } + + /* In INIT state, Activate IOPs */ + for (pHba = hba_chain; pHba; pHba = next) { + next = pHba->next; + // Activate does get status , init outbound, and get hrt + if (adpt_i2o_activate_hba(pHba) < 0) { + adpt_i2o_delete_hba(pHba); + } + } + + + /* Active IOPs in HOLD state */ + +rebuild_sys_tab: + if (hba_chain == NULL) + return 0; + + /* + * If build_sys_table fails, we kill everything and bail + * as we can't init the IOPs w/o a system table + */ + if (adpt_i2o_build_sys_table() < 0) { + adpt_i2o_sys_shutdown(); + return 0; + } + + PDEBUG("HBA's in HOLD state\n"); + + /* If IOP don't get online, we need to rebuild the System table */ + for (pHba = hba_chain; pHba; pHba = pHba->next) { + if (adpt_i2o_online_hba(pHba) < 0) { + adpt_i2o_delete_hba(pHba); + goto rebuild_sys_tab; + } + } + + /* Active IOPs now in OPERATIONAL state */ + PDEBUG("HBA's in OPERATIONAL state\n"); + + printk("dpti: If you have a lot of devices this could take a few minutes.\n"); + for (pHba = hba_chain; pHba; pHba = next) { + next = pHba->next; + printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name); + if (adpt_i2o_lct_get(pHba) < 0){ + adpt_i2o_delete_hba(pHba); + continue; + } + + if (adpt_i2o_parse_lct(pHba) < 0){ + adpt_i2o_delete_hba(pHba); + continue; + } + adpt_inquiry(pHba); + } + + adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o"); + if (IS_ERR(adpt_sysfs_class)) { + printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n"); + adpt_sysfs_class = NULL; + } + + for (pHba = hba_chain; pHba; pHba = next) { + next = pHba->next; + if (adpt_scsi_host_alloc(pHba, sht) < 0){ + adpt_i2o_delete_hba(pHba); + continue; + } + pHba->initialized = TRUE; + pHba->state &= ~DPTI_STATE_RESET; + if (adpt_sysfs_class) { + struct device *dev = device_create(adpt_sysfs_class, + NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL, + "dpti%d", pHba->unit); + if (IS_ERR(dev)) { + printk(KERN_WARNING"dpti%d: unable to " + "create device in dpt_i2o class\n", + pHba->unit); + } + } + } + + // Register our control device node + // nodes will need to be created in /dev to access this + // the nodes can not be created from within the driver + if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) { + adpt_i2o_sys_shutdown(); + return 0; + } + return hba_count; +} + + +/* + * scsi_unregister will be called AFTER we return. + */ +static int adpt_release(struct Scsi_Host *host) +{ + adpt_hba* pHba = (adpt_hba*) host->hostdata[0]; +// adpt_i2o_quiesce_hba(pHba); + adpt_i2o_delete_hba(pHba); + scsi_unregister(host); + return 0; +} + + +static void adpt_inquiry(adpt_hba* pHba) +{ + u32 msg[17]; + u32 *mptr; + u32 *lenptr; + int direction; + int scsidir; + u32 len; + u32 reqlen; + u8* buf; + dma_addr_t addr; + u8 scb[16]; + s32 rcode; + + memset(msg, 0, sizeof(msg)); + buf = dma_alloc_coherent(&pHba->pDev->dev, 80, &addr, GFP_KERNEL); + if(!buf){ + printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name); + return; + } + memset((void*)buf, 0, 36); + + len = 36; + direction = 0x00000000; + scsidir =0x40000000; // DATA IN (iop<--dev) + + if (dpt_dma64(pHba)) + reqlen = 17; // SINGLE SGE, 64 bit + else + reqlen = 14; // SINGLE SGE, 32 bit + /* Stick the headers on */ + msg[0] = reqlen<<16 | SGL_OFFSET_12; + msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID); + msg[2] = 0; + msg[3] = 0; + // Adaptec/DPT Private stuff + msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16; + msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/; + /* Direction, disconnect ok | sense data | simple queue , CDBLen */ + // I2O_SCB_FLAG_ENABLE_DISCONNECT | + // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | + // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; + msg[6] = scsidir|0x20a00000| 6 /* cmd len*/; + + mptr=msg+7; + + memset(scb, 0, sizeof(scb)); + // Write SCSI command into the message - always 16 byte block + scb[0] = INQUIRY; + scb[1] = 0; + scb[2] = 0; + scb[3] = 0; + scb[4] = 36; + scb[5] = 0; + // Don't care about the rest of scb + + memcpy(mptr, scb, sizeof(scb)); + mptr+=4; + lenptr=mptr++; /* Remember me - fill in when we know */ + + /* Now fill in the SGList and command */ + *lenptr = len; + if (dpt_dma64(pHba)) { + *mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */ + *mptr++ = 1 << PAGE_SHIFT; + *mptr++ = 0xD0000000|direction|len; + *mptr++ = dma_low(addr); + *mptr++ = dma_high(addr); + } else { + *mptr++ = 0xD0000000|direction|len; + *mptr++ = addr; + } + + // Send it on it's way + rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120); + if (rcode != 0) { + sprintf(pHba->detail, "Adaptec I2O RAID"); + printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode); + if (rcode != -ETIME && rcode != -EINTR) + dma_free_coherent(&pHba->pDev->dev, 80, buf, addr); + } else { + memset(pHba->detail, 0, sizeof(pHba->detail)); + memcpy(&(pHba->detail), "Vendor: Adaptec ", 16); + memcpy(&(pHba->detail[16]), " Model: ", 8); + memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16); + memcpy(&(pHba->detail[40]), " FW: ", 4); + memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4); + pHba->detail[48] = '\0'; /* precautionary */ + dma_free_coherent(&pHba->pDev->dev, 80, buf, addr); + } + adpt_i2o_status_get(pHba); + return ; +} + + +static int adpt_slave_configure(struct scsi_device * device) +{ + struct Scsi_Host *host = device->host; + adpt_hba* pHba; + + pHba = (adpt_hba *) host->hostdata[0]; + + if (host->can_queue && device->tagged_supported) { + scsi_change_queue_depth(device, + host->can_queue - 1); + } + return 0; +} + +static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *)) +{ + adpt_hba* pHba = NULL; + struct adpt_device* pDev = NULL; /* dpt per device information */ + + cmd->scsi_done = done; + /* + * SCSI REQUEST_SENSE commands will be executed automatically by the + * Host Adapter for any errors, so they should not be executed + * explicitly unless the Sense Data is zero indicating that no error + * occurred. + */ + + if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) { + cmd->result = (DID_OK << 16); + cmd->scsi_done(cmd); + return 0; + } + + pHba = (adpt_hba*)cmd->device->host->hostdata[0]; + if (!pHba) { + return FAILED; + } + + rmb(); + if ((pHba->state) & DPTI_STATE_RESET) + return SCSI_MLQUEUE_HOST_BUSY; + + // TODO if the cmd->device if offline then I may need to issue a bus rescan + // followed by a get_lct to see if the device is there anymore + if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) { + /* + * First command request for this device. Set up a pointer + * to the device structure. This should be a TEST_UNIT_READY + * command from scan_scsis_single. + */ + if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) { + // TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response + // with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue. + cmd->result = (DID_NO_CONNECT << 16); + cmd->scsi_done(cmd); + return 0; + } + cmd->device->hostdata = pDev; + } + pDev->pScsi_dev = cmd->device; + + /* + * If we are being called from when the device is being reset, + * delay processing of the command until later. + */ + if (pDev->state & DPTI_DEV_RESET ) { + return FAILED; + } + return adpt_scsi_to_i2o(pHba, cmd, pDev); +} + +static DEF_SCSI_QCMD(adpt_queue) + +static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev, + sector_t capacity, int geom[]) +{ + int heads=-1; + int sectors=-1; + int cylinders=-1; + + // *** First lets set the default geometry **** + + // If the capacity is less than ox2000 + if (capacity < 0x2000 ) { // floppy + heads = 18; + sectors = 2; + } + // else if between 0x2000 and 0x20000 + else if (capacity < 0x20000) { + heads = 64; + sectors = 32; + } + // else if between 0x20000 and 0x40000 + else if (capacity < 0x40000) { + heads = 65; + sectors = 63; + } + // else if between 0x4000 and 0x80000 + else if (capacity < 0x80000) { + heads = 128; + sectors = 63; + } + // else if greater than 0x80000 + else { + heads = 255; + sectors = 63; + } + cylinders = sector_div(capacity, heads * sectors); + + // Special case if CDROM + if(sdev->type == 5) { // CDROM + heads = 252; + sectors = 63; + cylinders = 1111; + } + + geom[0] = heads; + geom[1] = sectors; + geom[2] = cylinders; + + PDEBUG("adpt_bios_param: exit\n"); + return 0; +} + + +static const char *adpt_info(struct Scsi_Host *host) +{ + adpt_hba* pHba; + + pHba = (adpt_hba *) host->hostdata[0]; + return (char *) (pHba->detail); +} + +static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host) +{ + struct adpt_device* d; + int id; + int chan; + adpt_hba* pHba; + int unit; + + // Find HBA (host bus adapter) we are looking for + mutex_lock(&adpt_configuration_lock); + for (pHba = hba_chain; pHba; pHba = pHba->next) { + if (pHba->host == host) { + break; /* found adapter */ + } + } + mutex_unlock(&adpt_configuration_lock); + if (pHba == NULL) { + return 0; + } + host = pHba->host; + + seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION); + seq_printf(m, "%s\n", pHba->detail); + seq_printf(m, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n", + pHba->host->host_no, pHba->name, host->irq); + seq_printf(m, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n", + host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize); + + seq_puts(m, "Devices:\n"); + for(chan = 0; chan < MAX_CHANNEL; chan++) { + for(id = 0; id < MAX_ID; id++) { + d = pHba->channel[chan].device[id]; + while(d) { + seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor); + seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev); + + unit = d->pI2o_dev->lct_data.tid; + seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu) (%s)\n\n", + unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun, + scsi_device_online(d->pScsi_dev)? "online":"offline"); + d = d->next_lun; + } + } + } + return 0; +} + +/* + * Turn a struct scsi_cmnd * into a unique 32 bit 'context'. + */ +static u32 adpt_cmd_to_context(struct scsi_cmnd *cmd) +{ + return (u32)cmd->serial_number; +} + +/* + * Go from a u32 'context' to a struct scsi_cmnd * . + * This could probably be made more efficient. + */ +static struct scsi_cmnd * + adpt_cmd_from_context(adpt_hba * pHba, u32 context) +{ + struct scsi_cmnd * cmd; + struct scsi_device * d; + + if (context == 0) + return NULL; + + spin_unlock(pHba->host->host_lock); + shost_for_each_device(d, pHba->host) { + unsigned long flags; + spin_lock_irqsave(&d->list_lock, flags); + list_for_each_entry(cmd, &d->cmd_list, list) { + if (((u32)cmd->serial_number == context)) { + spin_unlock_irqrestore(&d->list_lock, flags); + scsi_device_put(d); + spin_lock(pHba->host->host_lock); + return cmd; + } + } + spin_unlock_irqrestore(&d->list_lock, flags); + } + spin_lock(pHba->host->host_lock); + + return NULL; +} + +/* + * Turn a pointer to ioctl reply data into an u32 'context' + */ +static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply) +{ +#if BITS_PER_LONG == 32 + return (u32)(unsigned long)reply; +#else + ulong flags = 0; + u32 nr, i; + + spin_lock_irqsave(pHba->host->host_lock, flags); + nr = ARRAY_SIZE(pHba->ioctl_reply_context); + for (i = 0; i < nr; i++) { + if (pHba->ioctl_reply_context[i] == NULL) { + pHba->ioctl_reply_context[i] = reply; + break; + } + } + spin_unlock_irqrestore(pHba->host->host_lock, flags); + if (i >= nr) { + kfree (reply); + printk(KERN_WARNING"%s: Too many outstanding " + "ioctl commands\n", pHba->name); + return (u32)-1; + } + + return i; +#endif +} + +/* + * Go from an u32 'context' to a pointer to ioctl reply data. + */ +static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context) +{ +#if BITS_PER_LONG == 32 + return (void *)(unsigned long)context; +#else + void *p = pHba->ioctl_reply_context[context]; + pHba->ioctl_reply_context[context] = NULL; + + return p; +#endif +} + +/*=========================================================================== + * Error Handling routines + *=========================================================================== + */ + +static int adpt_abort(struct scsi_cmnd * cmd) +{ + adpt_hba* pHba = NULL; /* host bus adapter structure */ + struct adpt_device* dptdevice; /* dpt per device information */ + u32 msg[5]; + int rcode; + + if(cmd->serial_number == 0){ + return FAILED; + } + pHba = (adpt_hba*) cmd->device->host->hostdata[0]; + printk(KERN_INFO"%s: Trying to Abort\n",pHba->name); + if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) { + printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name); + return FAILED; + } + + memset(msg, 0, sizeof(msg)); + msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid; + msg[2] = 0; + msg[3]= 0; + msg[4] = adpt_cmd_to_context(cmd); + if (pHba->host) + spin_lock_irq(pHba->host->host_lock); + rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER); + if (pHba->host) + spin_unlock_irq(pHba->host->host_lock); + if (rcode != 0) { + if(rcode == -EOPNOTSUPP ){ + printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name); + return FAILED; + } + printk(KERN_INFO"%s: Abort failed.\n",pHba->name); + return FAILED; + } + printk(KERN_INFO"%s: Abort complete.\n",pHba->name); + return SUCCESS; +} + + +#define I2O_DEVICE_RESET 0x27 +// This is the same for BLK and SCSI devices +// NOTE this is wrong in the i2o.h definitions +// This is not currently supported by our adapter but we issue it anyway +static int adpt_device_reset(struct scsi_cmnd* cmd) +{ + adpt_hba* pHba; + u32 msg[4]; + u32 rcode; + int old_state; + struct adpt_device* d = cmd->device->hostdata; + + pHba = (void*) cmd->device->host->hostdata[0]; + printk(KERN_INFO"%s: Trying to reset device\n",pHba->name); + if (!d) { + printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name); + return FAILED; + } + memset(msg, 0, sizeof(msg)); + msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid); + msg[2] = 0; + msg[3] = 0; + + if (pHba->host) + spin_lock_irq(pHba->host->host_lock); + old_state = d->state; + d->state |= DPTI_DEV_RESET; + rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER); + d->state = old_state; + if (pHba->host) + spin_unlock_irq(pHba->host->host_lock); + if (rcode != 0) { + if(rcode == -EOPNOTSUPP ){ + printk(KERN_INFO"%s: Device reset not supported\n",pHba->name); + return FAILED; + } + printk(KERN_INFO"%s: Device reset failed\n",pHba->name); + return FAILED; + } else { + printk(KERN_INFO"%s: Device reset successful\n",pHba->name); + return SUCCESS; + } +} + + +#define I2O_HBA_BUS_RESET 0x87 +// This version of bus reset is called by the eh_error handler +static int adpt_bus_reset(struct scsi_cmnd* cmd) +{ + adpt_hba* pHba; + u32 msg[4]; + u32 rcode; + + pHba = (adpt_hba*)cmd->device->host->hostdata[0]; + memset(msg, 0, sizeof(msg)); + printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid ); + msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid); + msg[2] = 0; + msg[3] = 0; + if (pHba->host) + spin_lock_irq(pHba->host->host_lock); + rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER); + if (pHba->host) + spin_unlock_irq(pHba->host->host_lock); + if (rcode != 0) { + printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name); + return FAILED; + } else { + printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name); + return SUCCESS; + } +} + +// This version of reset is called by the eh_error_handler +static int __adpt_reset(struct scsi_cmnd* cmd) +{ + adpt_hba* pHba; + int rcode; + pHba = (adpt_hba*)cmd->device->host->hostdata[0]; + printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n",pHba->name,cmd->device->channel,pHba->channel[cmd->device->channel].tid ); + rcode = adpt_hba_reset(pHba); + if(rcode == 0){ + printk(KERN_WARNING"%s: HBA reset complete\n",pHba->name); + return SUCCESS; + } else { + printk(KERN_WARNING"%s: HBA reset failed (%x)\n",pHba->name, rcode); + return FAILED; + } +} + +static int adpt_reset(struct scsi_cmnd* cmd) +{ + int rc; + + spin_lock_irq(cmd->device->host->host_lock); + rc = __adpt_reset(cmd); + spin_unlock_irq(cmd->device->host->host_lock); + + return rc; +} + +// This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset +static int adpt_hba_reset(adpt_hba* pHba) +{ + int rcode; + + pHba->state |= DPTI_STATE_RESET; + + // Activate does get status , init outbound, and get hrt + if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) { + printk(KERN_ERR "%s: Could not activate\n", pHba->name); + adpt_i2o_delete_hba(pHba); + return rcode; + } + + if ((rcode=adpt_i2o_build_sys_table()) < 0) { + adpt_i2o_delete_hba(pHba); + return rcode; + } + PDEBUG("%s: in HOLD state\n",pHba->name); + + if ((rcode=adpt_i2o_online_hba(pHba)) < 0) { + adpt_i2o_delete_hba(pHba); + return rcode; + } + PDEBUG("%s: in OPERATIONAL state\n",pHba->name); + + if ((rcode=adpt_i2o_lct_get(pHba)) < 0){ + adpt_i2o_delete_hba(pHba); + return rcode; + } + + if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){ + adpt_i2o_delete_hba(pHba); + return rcode; + } + pHba->state &= ~DPTI_STATE_RESET; + + adpt_fail_posted_scbs(pHba); + return 0; /* return success */ +} + +/*=========================================================================== + * + *=========================================================================== + */ + + +static void adpt_i2o_sys_shutdown(void) +{ + adpt_hba *pHba, *pNext; + struct adpt_i2o_post_wait_data *p1, *old; + + printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n"); + printk(KERN_INFO" This could take a few minutes if there are many devices attached\n"); + /* Delete all IOPs from the controller chain */ + /* They should have already been released by the + * scsi-core + */ + for (pHba = hba_chain; pHba; pHba = pNext) { + pNext = pHba->next; + adpt_i2o_delete_hba(pHba); + } + + /* Remove any timedout entries from the wait queue. */ +// spin_lock_irqsave(&adpt_post_wait_lock, flags); + /* Nothing should be outstanding at this point so just + * free them + */ + for(p1 = adpt_post_wait_queue; p1;) { + old = p1; + p1 = p1->next; + kfree(old); + } +// spin_unlock_irqrestore(&adpt_post_wait_lock, flags); + adpt_post_wait_queue = NULL; + + printk(KERN_INFO "Adaptec I2O controllers down.\n"); +} + +static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) +{ + + adpt_hba* pHba = NULL; + adpt_hba* p = NULL; + ulong base_addr0_phys = 0; + ulong base_addr1_phys = 0; + u32 hba_map0_area_size = 0; + u32 hba_map1_area_size = 0; + void __iomem *base_addr_virt = NULL; + void __iomem *msg_addr_virt = NULL; + int dma64 = 0; + + int raptorFlag = FALSE; + + if(pci_enable_device(pDev)) { + return -EINVAL; + } + + if (pci_request_regions(pDev, "dpt_i2o")) { + PERROR("dpti: adpt_config_hba: pci request region failed\n"); + return -EINVAL; + } + + pci_set_master(pDev); + + /* + * See if we should enable dma64 mode. + */ + if (sizeof(dma_addr_t) > 4 && + pci_set_dma_mask(pDev, DMA_BIT_MASK(64)) == 0) { + if (dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32)) + dma64 = 1; + } + if (!dma64 && pci_set_dma_mask(pDev, DMA_BIT_MASK(32)) != 0) + return -EINVAL; + + /* adapter only supports message blocks below 4GB */ + pci_set_consistent_dma_mask(pDev, DMA_BIT_MASK(32)); + + base_addr0_phys = pci_resource_start(pDev,0); + hba_map0_area_size = pci_resource_len(pDev,0); + + // Check if standard PCI card or single BAR Raptor + if(pDev->device == PCI_DPT_DEVICE_ID){ + if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){ + // Raptor card with this device id needs 4M + hba_map0_area_size = 0x400000; + } else { // Not Raptor - it is a PCI card + if(hba_map0_area_size > 0x100000 ){ + hba_map0_area_size = 0x100000; + } + } + } else {// Raptor split BAR config + // Use BAR1 in this configuration + base_addr1_phys = pci_resource_start(pDev,1); + hba_map1_area_size = pci_resource_len(pDev,1); + raptorFlag = TRUE; + } + +#if BITS_PER_LONG == 64 + /* + * The original Adaptec 64 bit driver has this comment here: + * "x86_64 machines need more optimal mappings" + * + * I assume some HBAs report ridiculously large mappings + * and we need to limit them on platforms with IOMMUs. + */ + if (raptorFlag == TRUE) { + if (hba_map0_area_size > 128) + hba_map0_area_size = 128; + if (hba_map1_area_size > 524288) + hba_map1_area_size = 524288; + } else { + if (hba_map0_area_size > 524288) + hba_map0_area_size = 524288; + } +#endif + + base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size); + if (!base_addr_virt) { + pci_release_regions(pDev); + PERROR("dpti: adpt_config_hba: io remap failed\n"); + return -EINVAL; + } + + if(raptorFlag == TRUE) { + msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size ); + if (!msg_addr_virt) { + PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n"); + iounmap(base_addr_virt); + pci_release_regions(pDev); + return -EINVAL; + } + } else { + msg_addr_virt = base_addr_virt; + } + + // Allocate and zero the data structure + pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL); + if (!pHba) { + if (msg_addr_virt != base_addr_virt) + iounmap(msg_addr_virt); + iounmap(base_addr_virt); + pci_release_regions(pDev); + return -ENOMEM; + } + + mutex_lock(&adpt_configuration_lock); + + if(hba_chain != NULL){ + for(p = hba_chain; p->next; p = p->next); + p->next = pHba; + } else { + hba_chain = pHba; + } + pHba->next = NULL; + pHba->unit = hba_count; + sprintf(pHba->name, "dpti%d", hba_count); + hba_count++; + + mutex_unlock(&adpt_configuration_lock); + + pHba->pDev = pDev; + pHba->base_addr_phys = base_addr0_phys; + + // Set up the Virtual Base Address of the I2O Device + pHba->base_addr_virt = base_addr_virt; + pHba->msg_addr_virt = msg_addr_virt; + pHba->irq_mask = base_addr_virt+0x30; + pHba->post_port = base_addr_virt+0x40; + pHba->reply_port = base_addr_virt+0x44; + + pHba->hrt = NULL; + pHba->lct = NULL; + pHba->lct_size = 0; + pHba->status_block = NULL; + pHba->post_count = 0; + pHba->state = DPTI_STATE_RESET; + pHba->pDev = pDev; + pHba->devices = NULL; + pHba->dma64 = dma64; + + // Initializing the spinlocks + spin_lock_init(&pHba->state_lock); + spin_lock_init(&adpt_post_wait_lock); + + if(raptorFlag == 0){ + printk(KERN_INFO "Adaptec I2O RAID controller" + " %d at %p size=%x irq=%d%s\n", + hba_count-1, base_addr_virt, + hba_map0_area_size, pDev->irq, + dma64 ? " (64-bit DMA)" : ""); + } else { + printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n", + hba_count-1, pDev->irq, + dma64 ? " (64-bit DMA)" : ""); + printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size); + printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size); + } + + if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) { + printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq); + adpt_i2o_delete_hba(pHba); + return -EINVAL; + } + + return 0; +} + + +static void adpt_i2o_delete_hba(adpt_hba* pHba) +{ + adpt_hba* p1; + adpt_hba* p2; + struct i2o_device* d; + struct i2o_device* next; + int i; + int j; + struct adpt_device* pDev; + struct adpt_device* pNext; + + + mutex_lock(&adpt_configuration_lock); + // scsi_unregister calls our adpt_release which + // does a quiese + if(pHba->host){ + free_irq(pHba->host->irq, pHba); + } + p2 = NULL; + for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){ + if(p1 == pHba) { + if(p2) { + p2->next = p1->next; + } else { + hba_chain = p1->next; + } + break; + } + } + + hba_count--; + mutex_unlock(&adpt_configuration_lock); + + iounmap(pHba->base_addr_virt); + pci_release_regions(pHba->pDev); + if(pHba->msg_addr_virt != pHba->base_addr_virt){ + iounmap(pHba->msg_addr_virt); + } + if(pHba->FwDebugBuffer_P) + iounmap(pHba->FwDebugBuffer_P); + if(pHba->hrt) { + dma_free_coherent(&pHba->pDev->dev, + pHba->hrt->num_entries * pHba->hrt->entry_len << 2, + pHba->hrt, pHba->hrt_pa); + } + if(pHba->lct) { + dma_free_coherent(&pHba->pDev->dev, pHba->lct_size, + pHba->lct, pHba->lct_pa); + } + if(pHba->status_block) { + dma_free_coherent(&pHba->pDev->dev, sizeof(i2o_status_block), + pHba->status_block, pHba->status_block_pa); + } + if(pHba->reply_pool) { + dma_free_coherent(&pHba->pDev->dev, + pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, + pHba->reply_pool, pHba->reply_pool_pa); + } + + for(d = pHba->devices; d ; d = next){ + next = d->next; + kfree(d); + } + for(i = 0 ; i < pHba->top_scsi_channel ; i++){ + for(j = 0; j < MAX_ID; j++){ + if(pHba->channel[i].device[j] != NULL){ + for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){ + pNext = pDev->next_lun; + kfree(pDev); + } + } + } + } + pci_dev_put(pHba->pDev); + if (adpt_sysfs_class) + device_destroy(adpt_sysfs_class, + MKDEV(DPTI_I2O_MAJOR, pHba->unit)); + kfree(pHba); + + if(hba_count <= 0){ + unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER); + if (adpt_sysfs_class) { + class_destroy(adpt_sysfs_class); + adpt_sysfs_class = NULL; + } + } +} + +static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun) +{ + struct adpt_device* d; + + if(chan < 0 || chan >= MAX_CHANNEL) + return NULL; + + if( pHba->channel[chan].device == NULL){ + printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n"); + return NULL; + } + + d = pHba->channel[chan].device[id]; + if(!d || d->tid == 0) { + return NULL; + } + + /* If it is the only lun at that address then this should match*/ + if(d->scsi_lun == lun){ + return d; + } + + /* else we need to look through all the luns */ + for(d=d->next_lun ; d ; d = d->next_lun){ + if(d->scsi_lun == lun){ + return d; + } + } + return NULL; +} + + +static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout) +{ + // I used my own version of the WAIT_QUEUE_HEAD + // to handle some version differences + // When embedded in the kernel this could go back to the vanilla one + ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post); + int status = 0; + ulong flags = 0; + struct adpt_i2o_post_wait_data *p1, *p2; + struct adpt_i2o_post_wait_data *wait_data = + kmalloc(sizeof(struct adpt_i2o_post_wait_data), GFP_ATOMIC); + DECLARE_WAITQUEUE(wait, current); + + if (!wait_data) + return -ENOMEM; + + /* + * The spin locking is needed to keep anyone from playing + * with the queue pointers and id while we do the same + */ + spin_lock_irqsave(&adpt_post_wait_lock, flags); + // TODO we need a MORE unique way of getting ids + // to support async LCT get + wait_data->next = adpt_post_wait_queue; + adpt_post_wait_queue = wait_data; + adpt_post_wait_id++; + adpt_post_wait_id &= 0x7fff; + wait_data->id = adpt_post_wait_id; + spin_unlock_irqrestore(&adpt_post_wait_lock, flags); + + wait_data->wq = &adpt_wq_i2o_post; + wait_data->status = -ETIMEDOUT; + + add_wait_queue(&adpt_wq_i2o_post, &wait); + + msg[2] |= 0x80000000 | ((u32)wait_data->id); + timeout *= HZ; + if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){ + set_current_state(TASK_INTERRUPTIBLE); + if(pHba->host) + spin_unlock_irq(pHba->host->host_lock); + if (!timeout) + schedule(); + else{ + timeout = schedule_timeout(timeout); + if (timeout == 0) { + // I/O issued, but cannot get result in + // specified time. Freeing resorces is + // dangerous. + status = -ETIME; + } + } + if(pHba->host) + spin_lock_irq(pHba->host->host_lock); + } + remove_wait_queue(&adpt_wq_i2o_post, &wait); + + if(status == -ETIMEDOUT){ + printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit); + // We will have to free the wait_data memory during shutdown + return status; + } + + /* Remove the entry from the queue. */ + p2 = NULL; + spin_lock_irqsave(&adpt_post_wait_lock, flags); + for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) { + if(p1 == wait_data) { + if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) { + status = -EOPNOTSUPP; + } + if(p2) { + p2->next = p1->next; + } else { + adpt_post_wait_queue = p1->next; + } + break; + } + } + spin_unlock_irqrestore(&adpt_post_wait_lock, flags); + + kfree(wait_data); + + return status; +} + + +static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len) +{ + + u32 m = EMPTY_QUEUE; + u32 __iomem *msg; + ulong timeout = jiffies + 30*HZ; + do { + rmb(); + m = readl(pHba->post_port); + if (m != EMPTY_QUEUE) { + break; + } + if(time_after(jiffies,timeout)){ + printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit); + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while(m == EMPTY_QUEUE); + + msg = pHba->msg_addr_virt + m; + memcpy_toio(msg, data, len); + wmb(); + + //post message + writel(m, pHba->post_port); + wmb(); + + return 0; +} + + +static void adpt_i2o_post_wait_complete(u32 context, int status) +{ + struct adpt_i2o_post_wait_data *p1 = NULL; + /* + * We need to search through the adpt_post_wait + * queue to see if the given message is still + * outstanding. If not, it means that the IOP + * took longer to respond to the message than we + * had allowed and timer has already expired. + * Not much we can do about that except log + * it for debug purposes, increase timeout, and recompile + * + * Lock needed to keep anyone from moving queue pointers + * around while we're looking through them. + */ + + context &= 0x7fff; + + spin_lock(&adpt_post_wait_lock); + for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { + if(p1->id == context) { + p1->status = status; + spin_unlock(&adpt_post_wait_lock); + wake_up_interruptible(p1->wq); + return; + } + } + spin_unlock(&adpt_post_wait_lock); + // If this happens we lose commands that probably really completed + printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context); + printk(KERN_DEBUG" Tasks in wait queue:\n"); + for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { + printk(KERN_DEBUG" %d\n",p1->id); + } + return; +} + +static s32 adpt_i2o_reset_hba(adpt_hba* pHba) +{ + u32 msg[8]; + u8* status; + dma_addr_t addr; + u32 m = EMPTY_QUEUE ; + ulong timeout = jiffies + (TMOUT_IOPRESET*HZ); + + if(pHba->initialized == FALSE) { // First time reset should be quick + timeout = jiffies + (25*HZ); + } else { + adpt_i2o_quiesce_hba(pHba); + } + + do { + rmb(); + m = readl(pHba->post_port); + if (m != EMPTY_QUEUE) { + break; + } + if(time_after(jiffies,timeout)){ + printk(KERN_WARNING"Timeout waiting for message!\n"); + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while (m == EMPTY_QUEUE); + + status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); + if(status == NULL) { + adpt_send_nop(pHba, m); + printk(KERN_ERR"IOP reset failed - no free memory.\n"); + return -ENOMEM; + } + memset(status,0,4); + + msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID; + msg[2]=0; + msg[3]=0; + msg[4]=0; + msg[5]=0; + msg[6]=dma_low(addr); + msg[7]=dma_high(addr); + + memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg)); + wmb(); + writel(m, pHba->post_port); + wmb(); + + while(*status == 0){ + if(time_after(jiffies,timeout)){ + printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name); + /* We lose 4 bytes of "status" here, but we cannot + free these because controller may awake and corrupt + those bytes at any time */ + /* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */ + return -ETIMEDOUT; + } + rmb(); + schedule_timeout_uninterruptible(1); + } + + if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) { + PDEBUG("%s: Reset in progress...\n", pHba->name); + // Here we wait for message frame to become available + // indicated that reset has finished + do { + rmb(); + m = readl(pHba->post_port); + if (m != EMPTY_QUEUE) { + break; + } + if(time_after(jiffies,timeout)){ + printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name); + /* We lose 4 bytes of "status" here, but we + cannot free these because controller may + awake and corrupt those bytes at any time */ + /* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */ + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while (m == EMPTY_QUEUE); + // Flush the offset + adpt_send_nop(pHba, m); + } + adpt_i2o_status_get(pHba); + if(*status == 0x02 || + pHba->status_block->iop_state != ADAPTER_STATE_RESET) { + printk(KERN_WARNING"%s: Reset reject, trying to clear\n", + pHba->name); + } else { + PDEBUG("%s: Reset completed.\n", pHba->name); + } + + dma_free_coherent(&pHba->pDev->dev, 4, status, addr); +#ifdef UARTDELAY + // This delay is to allow someone attached to the card through the debug UART to + // set up the dump levels that they want before the rest of the initialization sequence + adpt_delay(20000); +#endif + return 0; +} + + +static int adpt_i2o_parse_lct(adpt_hba* pHba) +{ + int i; + int max; + int tid; + struct i2o_device *d; + i2o_lct *lct = pHba->lct; + u8 bus_no = 0; + s16 scsi_id; + u64 scsi_lun; + u32 buf[10]; // larger than 7, or 8 ... + struct adpt_device* pDev; + + if (lct == NULL) { + printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); + return -1; + } + + max = lct->table_size; + max -= 3; + max /= 9; + + for(i=0;i<max;i++) { + if( lct->lct_entry[i].user_tid != 0xfff){ + /* + * If we have hidden devices, we need to inform the upper layers about + * the possible maximum id reference to handle device access when + * an array is disassembled. This code has no other purpose but to + * allow us future access to devices that are currently hidden + * behind arrays, hotspares or have not been configured (JBOD mode). + */ + if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE && + lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL && + lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ + continue; + } + tid = lct->lct_entry[i].tid; + // I2O_DPT_DEVICE_INFO_GROUP_NO; + if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { + continue; + } + bus_no = buf[0]>>16; + scsi_id = buf[1]; + scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); + if(bus_no >= MAX_CHANNEL) { // Something wrong skip it + printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no); + continue; + } + if (scsi_id >= MAX_ID){ + printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no); + continue; + } + if(bus_no > pHba->top_scsi_channel){ + pHba->top_scsi_channel = bus_no; + } + if(scsi_id > pHba->top_scsi_id){ + pHba->top_scsi_id = scsi_id; + } + if(scsi_lun > pHba->top_scsi_lun){ + pHba->top_scsi_lun = scsi_lun; + } + continue; + } + d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL); + if(d==NULL) + { + printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name); + return -ENOMEM; + } + + d->controller = pHba; + d->next = NULL; + + memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); + + d->flags = 0; + tid = d->lct_data.tid; + adpt_i2o_report_hba_unit(pHba, d); + adpt_i2o_install_device(pHba, d); + } + bus_no = 0; + for(d = pHba->devices; d ; d = d->next) { + if(d->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT || + d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PORT){ + tid = d->lct_data.tid; + // TODO get the bus_no from hrt-but for now they are in order + //bus_no = + if(bus_no > pHba->top_scsi_channel){ + pHba->top_scsi_channel = bus_no; + } + pHba->channel[bus_no].type = d->lct_data.class_id; + pHba->channel[bus_no].tid = tid; + if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0) + { + pHba->channel[bus_no].scsi_id = buf[1]; + PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]); + } + // TODO remove - this is just until we get from hrt + bus_no++; + if(bus_no >= MAX_CHANNEL) { // Something wrong skip it + printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no); + break; + } + } + } + + // Setup adpt_device table + for(d = pHba->devices; d ; d = d->next) { + if(d->lct_data.class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || + d->lct_data.class_id == I2O_CLASS_SCSI_PERIPHERAL || + d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ + + tid = d->lct_data.tid; + scsi_id = -1; + // I2O_DPT_DEVICE_INFO_GROUP_NO; + if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) { + bus_no = buf[0]>>16; + scsi_id = buf[1]; + scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); + if(bus_no >= MAX_CHANNEL) { // Something wrong skip it + continue; + } + if (scsi_id >= MAX_ID) { + continue; + } + if( pHba->channel[bus_no].device[scsi_id] == NULL){ + pDev = kzalloc(sizeof(struct adpt_device),GFP_KERNEL); + if(pDev == NULL) { + return -ENOMEM; + } + pHba->channel[bus_no].device[scsi_id] = pDev; + } else { + for( pDev = pHba->channel[bus_no].device[scsi_id]; + pDev->next_lun; pDev = pDev->next_lun){ + } + pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL); + if(pDev->next_lun == NULL) { + return -ENOMEM; + } + pDev = pDev->next_lun; + } + pDev->tid = tid; + pDev->scsi_channel = bus_no; + pDev->scsi_id = scsi_id; + pDev->scsi_lun = scsi_lun; + pDev->pI2o_dev = d; + d->owner = pDev; + pDev->type = (buf[0])&0xff; + pDev->flags = (buf[0]>>8)&0xff; + if(scsi_id > pHba->top_scsi_id){ + pHba->top_scsi_id = scsi_id; + } + if(scsi_lun > pHba->top_scsi_lun){ + pHba->top_scsi_lun = scsi_lun; + } + } + if(scsi_id == -1){ + printk(KERN_WARNING"Could not find SCSI ID for %s\n", + d->lct_data.identity_tag); + } + } + } + return 0; +} + + +/* + * Each I2O controller has a chain of devices on it - these match + * the useful parts of the LCT of the board. + */ + +static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d) +{ + mutex_lock(&adpt_configuration_lock); + d->controller=pHba; + d->owner=NULL; + d->next=pHba->devices; + d->prev=NULL; + if (pHba->devices != NULL){ + pHba->devices->prev=d; + } + pHba->devices=d; + *d->dev_name = 0; + + mutex_unlock(&adpt_configuration_lock); + return 0; +} + +static int adpt_open(struct inode *inode, struct file *file) +{ + int minor; + adpt_hba* pHba; + + mutex_lock(&adpt_mutex); + //TODO check for root access + // + minor = iminor(inode); + if (minor >= hba_count) { + mutex_unlock(&adpt_mutex); + return -ENXIO; + } + mutex_lock(&adpt_configuration_lock); + for (pHba = hba_chain; pHba; pHba = pHba->next) { + if (pHba->unit == minor) { + break; /* found adapter */ + } + } + if (pHba == NULL) { + mutex_unlock(&adpt_configuration_lock); + mutex_unlock(&adpt_mutex); + return -ENXIO; + } + +// if(pHba->in_use){ + // mutex_unlock(&adpt_configuration_lock); +// return -EBUSY; +// } + + pHba->in_use = 1; + mutex_unlock(&adpt_configuration_lock); + mutex_unlock(&adpt_mutex); + + return 0; +} + +static int adpt_close(struct inode *inode, struct file *file) +{ + int minor; + adpt_hba* pHba; + + minor = iminor(inode); + if (minor >= hba_count) { + return -ENXIO; + } + mutex_lock(&adpt_configuration_lock); + for (pHba = hba_chain; pHba; pHba = pHba->next) { + if (pHba->unit == minor) { + break; /* found adapter */ + } + } + mutex_unlock(&adpt_configuration_lock); + if (pHba == NULL) { + return -ENXIO; + } + + pHba->in_use = 0; + + return 0; +} + + +static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg) +{ + u32 msg[MAX_MESSAGE_SIZE]; + u32* reply = NULL; + u32 size = 0; + u32 reply_size = 0; + u32 __user *user_msg = arg; + u32 __user * user_reply = NULL; + void *sg_list[pHba->sg_tablesize]; + u32 sg_offset = 0; + u32 sg_count = 0; + int sg_index = 0; + u32 i = 0; + u32 rcode = 0; + void *p = NULL; + dma_addr_t addr; + ulong flags = 0; + + memset(&msg, 0, MAX_MESSAGE_SIZE*4); + // get user msg size in u32s + if(get_user(size, &user_msg[0])){ + return -EFAULT; + } + size = size>>16; + + user_reply = &user_msg[size]; + if(size > MAX_MESSAGE_SIZE){ + return -EFAULT; + } + size *= 4; // Convert to bytes + + /* Copy in the user's I2O command */ + if(copy_from_user(msg, user_msg, size)) { + return -EFAULT; + } + get_user(reply_size, &user_reply[0]); + reply_size = reply_size>>16; + if(reply_size > REPLY_FRAME_SIZE){ + reply_size = REPLY_FRAME_SIZE; + } + reply_size *= 4; + reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL); + if(reply == NULL) { + printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name); + return -ENOMEM; + } + sg_offset = (msg[0]>>4)&0xf; + msg[2] = 0x40000000; // IOCTL context + msg[3] = adpt_ioctl_to_context(pHba, reply); + if (msg[3] == (u32)-1) + return -EBUSY; + + memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize); + if(sg_offset) { + // TODO add 64 bit API + struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset); + sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); + if (sg_count > pHba->sg_tablesize){ + printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count); + kfree (reply); + return -EINVAL; + } + + for(i = 0; i < sg_count; i++) { + int sg_size; + + if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) { + printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count); + rcode = -EINVAL; + goto cleanup; + } + sg_size = sg[i].flag_count & 0xffffff; + /* Allocate memory for the transfer */ + p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL); + if(!p) { + printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", + pHba->name,sg_size,i,sg_count); + rcode = -ENOMEM; + goto cleanup; + } + sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame. + /* Copy in the user's SG buffer if necessary */ + if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) { + // sg_simple_element API is 32 bit + if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) { + printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i); + rcode = -EFAULT; + goto cleanup; + } + } + /* sg_simple_element API is 32 bit, but addr < 4GB */ + sg[i].addr_bus = addr; + } + } + + do { + /* + * Stop any new commands from enterring the + * controller while processing the ioctl + */ + if (pHba->host) { + scsi_block_requests(pHba->host); + spin_lock_irqsave(pHba->host->host_lock, flags); + } + rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER); + if (rcode != 0) + printk("adpt_i2o_passthru: post wait failed %d %p\n", + rcode, reply); + if (pHba->host) { + spin_unlock_irqrestore(pHba->host->host_lock, flags); + scsi_unblock_requests(pHba->host); + } + } while (rcode == -ETIMEDOUT); + + if(rcode){ + goto cleanup; + } + + if(sg_offset) { + /* Copy back the Scatter Gather buffers back to user space */ + u32 j; + // TODO add 64 bit API + struct sg_simple_element* sg; + int sg_size; + + // re-acquire the original message to handle correctly the sg copy operation + memset(&msg, 0, MAX_MESSAGE_SIZE*4); + // get user msg size in u32s + if(get_user(size, &user_msg[0])){ + rcode = -EFAULT; + goto cleanup; + } + size = size>>16; + size *= 4; + if (size > MAX_MESSAGE_SIZE) { + rcode = -EINVAL; + goto cleanup; + } + /* Copy in the user's I2O command */ + if (copy_from_user (msg, user_msg, size)) { + rcode = -EFAULT; + goto cleanup; + } + sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); + + // TODO add 64 bit API + sg = (struct sg_simple_element*)(msg + sg_offset); + for (j = 0; j < sg_count; j++) { + /* Copy out the SG list to user's buffer if necessary */ + if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) { + sg_size = sg[j].flag_count & 0xffffff; + // sg_simple_element API is 32 bit + if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) { + printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus); + rcode = -EFAULT; + goto cleanup; + } + } + } + } + + /* Copy back the reply to user space */ + if (reply_size) { + // we wrote our own values for context - now restore the user supplied ones + if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) { + printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name); + rcode = -EFAULT; + } + if(copy_to_user(user_reply, reply, reply_size)) { + printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name); + rcode = -EFAULT; + } + } + + +cleanup: + if (rcode != -ETIME && rcode != -EINTR) { + struct sg_simple_element *sg = + (struct sg_simple_element*) (msg +sg_offset); + kfree (reply); + while(sg_index) { + if(sg_list[--sg_index]) { + dma_free_coherent(&pHba->pDev->dev, + sg[sg_index].flag_count & 0xffffff, + sg_list[sg_index], + sg[sg_index].addr_bus); + } + } + } + return rcode; +} + +#if defined __ia64__ +static void adpt_ia64_info(sysInfo_S* si) +{ + // This is all the info we need for now + // We will add more info as our new + // managmenent utility requires it + si->processorType = PROC_IA64; +} +#endif + +#if defined __sparc__ +static void adpt_sparc_info(sysInfo_S* si) +{ + // This is all the info we need for now + // We will add more info as our new + // managmenent utility requires it + si->processorType = PROC_ULTRASPARC; +} +#endif +#if defined __alpha__ +static void adpt_alpha_info(sysInfo_S* si) +{ + // This is all the info we need for now + // We will add more info as our new + // managmenent utility requires it + si->processorType = PROC_ALPHA; +} +#endif + +#if defined __i386__ +static void adpt_i386_info(sysInfo_S* si) +{ + // This is all the info we need for now + // We will add more info as our new + // managmenent utility requires it + switch (boot_cpu_data.x86) { + case CPU_386: + si->processorType = PROC_386; + break; + case CPU_486: + si->processorType = PROC_486; + break; + case CPU_586: + si->processorType = PROC_PENTIUM; + break; + default: // Just in case + si->processorType = PROC_PENTIUM; + break; + } +} +#endif + +/* + * This routine returns information about the system. This does not effect + * any logic and if the info is wrong - it doesn't matter. + */ + +/* Get all the info we can not get from kernel services */ +static int adpt_system_info(void __user *buffer) +{ + sysInfo_S si; + + memset(&si, 0, sizeof(si)); + + si.osType = OS_LINUX; + si.osMajorVersion = 0; + si.osMinorVersion = 0; + si.osRevision = 0; + si.busType = SI_PCI_BUS; + si.processorFamily = DPTI_sig.dsProcessorFamily; + +#if defined __i386__ + adpt_i386_info(&si); +#elif defined (__ia64__) + adpt_ia64_info(&si); +#elif defined(__sparc__) + adpt_sparc_info(&si); +#elif defined (__alpha__) + adpt_alpha_info(&si); +#else + si.processorType = 0xff ; +#endif + if (copy_to_user(buffer, &si, sizeof(si))){ + printk(KERN_WARNING"dpti: Could not copy buffer TO user\n"); + return -EFAULT; + } + + return 0; +} + +static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) +{ + int minor; + int error = 0; + adpt_hba* pHba; + ulong flags = 0; + void __user *argp = (void __user *)arg; + + minor = iminor(inode); + if (minor >= DPTI_MAX_HBA){ + return -ENXIO; + } + mutex_lock(&adpt_configuration_lock); + for (pHba = hba_chain; pHba; pHba = pHba->next) { + if (pHba->unit == minor) { + break; /* found adapter */ + } + } + mutex_unlock(&adpt_configuration_lock); + if(pHba == NULL){ + return -ENXIO; + } + + while((volatile u32) pHba->state & DPTI_STATE_RESET ) + schedule_timeout_uninterruptible(2); + + switch (cmd) { + // TODO: handle 3 cases + case DPT_SIGNATURE: + if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) { + return -EFAULT; + } + break; + case I2OUSRCMD: + return adpt_i2o_passthru(pHba, argp); + + case DPT_CTRLINFO:{ + drvrHBAinfo_S HbaInfo; + +#define FLG_OSD_PCI_VALID 0x0001 +#define FLG_OSD_DMA 0x0002 +#define FLG_OSD_I2O 0x0004 + memset(&HbaInfo, 0, sizeof(HbaInfo)); + HbaInfo.drvrHBAnum = pHba->unit; + HbaInfo.baseAddr = (ulong) pHba->base_addr_phys; + HbaInfo.blinkState = adpt_read_blink_led(pHba); + HbaInfo.pciBusNum = pHba->pDev->bus->number; + HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn); + HbaInfo.Interrupt = pHba->pDev->irq; + HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O; + if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){ + printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name); + return -EFAULT; + } + break; + } + case DPT_SYSINFO: + return adpt_system_info(argp); + case DPT_BLINKLED:{ + u32 value; + value = (u32)adpt_read_blink_led(pHba); + if (copy_to_user(argp, &value, sizeof(value))) { + return -EFAULT; + } + break; + } + case I2ORESETCMD: + if(pHba->host) + spin_lock_irqsave(pHba->host->host_lock, flags); + adpt_hba_reset(pHba); + if(pHba->host) + spin_unlock_irqrestore(pHba->host->host_lock, flags); + break; + case I2ORESCANCMD: + adpt_rescan(pHba); + break; + default: + return -EINVAL; + } + + return error; +} + +static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg) +{ + struct inode *inode; + long ret; + + inode = file_inode(file); + + mutex_lock(&adpt_mutex); + ret = adpt_ioctl(inode, file, cmd, arg); + mutex_unlock(&adpt_mutex); + + return ret; +} + +#ifdef CONFIG_COMPAT +static long compat_adpt_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct inode *inode; + long ret; + + inode = file_inode(file); + + mutex_lock(&adpt_mutex); + + switch(cmd) { + case DPT_SIGNATURE: + case I2OUSRCMD: + case DPT_CTRLINFO: + case DPT_SYSINFO: + case DPT_BLINKLED: + case I2ORESETCMD: + case I2ORESCANCMD: + case (DPT_TARGET_BUSY & 0xFFFF): + case DPT_TARGET_BUSY: + ret = adpt_ioctl(inode, file, cmd, arg); + break; + default: + ret = -ENOIOCTLCMD; + } + + mutex_unlock(&adpt_mutex); + + return ret; +} +#endif + +static irqreturn_t adpt_isr(int irq, void *dev_id) +{ + struct scsi_cmnd* cmd; + adpt_hba* pHba = dev_id; + u32 m; + void __iomem *reply; + u32 status=0; + u32 context; + ulong flags = 0; + int handled = 0; + + if (pHba == NULL){ + printk(KERN_WARNING"adpt_isr: NULL dev_id\n"); + return IRQ_NONE; + } + if(pHba->host) + spin_lock_irqsave(pHba->host->host_lock, flags); + + while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) { + m = readl(pHba->reply_port); + if(m == EMPTY_QUEUE){ + // Try twice then give up + rmb(); + m = readl(pHba->reply_port); + if(m == EMPTY_QUEUE){ + // This really should not happen + printk(KERN_ERR"dpti: Could not get reply frame\n"); + goto out; + } + } + if (pHba->reply_pool_pa <= m && + m < pHba->reply_pool_pa + + (pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4)) { + reply = (u8 *)pHba->reply_pool + + (m - pHba->reply_pool_pa); + } else { + /* Ick, we should *never* be here */ + printk(KERN_ERR "dpti: reply frame not from pool\n"); + reply = (u8 *)bus_to_virt(m); + } + + if (readl(reply) & MSG_FAIL) { + u32 old_m = readl(reply+28); + void __iomem *msg; + u32 old_context; + PDEBUG("%s: Failed message\n",pHba->name); + if(old_m >= 0x100000){ + printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m); + writel(m,pHba->reply_port); + continue; + } + // Transaction context is 0 in failed reply frame + msg = pHba->msg_addr_virt + old_m; + old_context = readl(msg+12); + writel(old_context, reply+12); + adpt_send_nop(pHba, old_m); + } + context = readl(reply+8); + if(context & 0x40000000){ // IOCTL + void *p = adpt_ioctl_from_context(pHba, readl(reply+12)); + if( p != NULL) { + memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4); + } + // All IOCTLs will also be post wait + } + if(context & 0x80000000){ // Post wait message + status = readl(reply+16); + if(status >> 24){ + status &= 0xffff; /* Get detail status */ + } else { + status = I2O_POST_WAIT_OK; + } + if(!(context & 0x40000000)) { + cmd = adpt_cmd_from_context(pHba, + readl(reply+12)); + if(cmd != NULL) { + printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context); + } + } + adpt_i2o_post_wait_complete(context, status); + } else { // SCSI message + cmd = adpt_cmd_from_context (pHba, readl(reply+12)); + if(cmd != NULL){ + scsi_dma_unmap(cmd); + if(cmd->serial_number != 0) { // If not timedout + adpt_i2o_to_scsi(reply, cmd); + } + } + } + writel(m, pHba->reply_port); + wmb(); + rmb(); + } + handled = 1; +out: if(pHba->host) + spin_unlock_irqrestore(pHba->host->host_lock, flags); + return IRQ_RETVAL(handled); +} + +static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d) +{ + int i; + u32 msg[MAX_MESSAGE_SIZE]; + u32* mptr; + u32* lptr; + u32 *lenptr; + int direction; + int scsidir; + int nseg; + u32 len; + u32 reqlen; + s32 rcode; + dma_addr_t addr; + + memset(msg, 0 , sizeof(msg)); + len = scsi_bufflen(cmd); + direction = 0x00000000; + + scsidir = 0x00000000; // DATA NO XFER + if(len) { + /* + * Set SCBFlags to indicate if data is being transferred + * in or out, or no data transfer + * Note: Do not have to verify index is less than 0 since + * cmd->cmnd[0] is an unsigned char + */ + switch(cmd->sc_data_direction){ + case DMA_FROM_DEVICE: + scsidir =0x40000000; // DATA IN (iop<--dev) + break; + case DMA_TO_DEVICE: + direction=0x04000000; // SGL OUT + scsidir =0x80000000; // DATA OUT (iop-->dev) + break; + case DMA_NONE: + break; + case DMA_BIDIRECTIONAL: + scsidir =0x40000000; // DATA IN (iop<--dev) + // Assume In - and continue; + break; + default: + printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n", + pHba->name, cmd->cmnd[0]); + cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8); + cmd->scsi_done(cmd); + return 0; + } + } + // msg[0] is set later + // I2O_CMD_SCSI_EXEC + msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid); + msg[2] = 0; + msg[3] = adpt_cmd_to_context(cmd); /* Want SCSI control block back */ + // Our cards use the transaction context as the tag for queueing + // Adaptec/DPT Private stuff + msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16); + msg[5] = d->tid; + /* Direction, disconnect ok | sense data | simple queue , CDBLen */ + // I2O_SCB_FLAG_ENABLE_DISCONNECT | + // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | + // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; + msg[6] = scsidir|0x20a00000|cmd->cmd_len; + + mptr=msg+7; + + // Write SCSI command into the message - always 16 byte block + memset(mptr, 0, 16); + memcpy(mptr, cmd->cmnd, cmd->cmd_len); + mptr+=4; + lenptr=mptr++; /* Remember me - fill in when we know */ + if (dpt_dma64(pHba)) { + reqlen = 16; // SINGLE SGE + *mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */ + *mptr++ = 1 << PAGE_SHIFT; + } else { + reqlen = 14; // SINGLE SGE + } + /* Now fill in the SGList and command */ + + nseg = scsi_dma_map(cmd); + BUG_ON(nseg < 0); + if (nseg) { + struct scatterlist *sg; + + len = 0; + scsi_for_each_sg(cmd, sg, nseg, i) { + lptr = mptr; + *mptr++ = direction|0x10000000|sg_dma_len(sg); + len+=sg_dma_len(sg); + addr = sg_dma_address(sg); + *mptr++ = dma_low(addr); + if (dpt_dma64(pHba)) + *mptr++ = dma_high(addr); + /* Make this an end of list */ + if (i == nseg - 1) + *lptr = direction|0xD0000000|sg_dma_len(sg); + } + reqlen = mptr - msg; + *lenptr = len; + + if(cmd->underflow && len != cmd->underflow){ + printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n", + len, cmd->underflow); + } + } else { + *lenptr = len = 0; + reqlen = 12; + } + + /* Stick the headers on */ + msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0); + + // Send it on it's way + rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2); + if (rcode == 0) { + return 0; + } + return rcode; +} + + +static s32 adpt_scsi_host_alloc(adpt_hba* pHba, struct scsi_host_template *sht) +{ + struct Scsi_Host *host; + + host = scsi_host_alloc(sht, sizeof(adpt_hba*)); + if (host == NULL) { + printk("%s: scsi_host_alloc returned NULL\n", pHba->name); + return -1; + } + host->hostdata[0] = (unsigned long)pHba; + pHba->host = host; + + host->irq = pHba->pDev->irq; + /* no IO ports, so don't have to set host->io_port and + * host->n_io_port + */ + host->io_port = 0; + host->n_io_port = 0; + /* see comments in scsi_host.h */ + host->max_id = 16; + host->max_lun = 256; + host->max_channel = pHba->top_scsi_channel + 1; + host->cmd_per_lun = 1; + host->unique_id = (u32)sys_tbl_pa + pHba->unit; + host->sg_tablesize = pHba->sg_tablesize; + host->can_queue = pHba->post_fifo_size; + host->use_cmd_list = 1; + + return 0; +} + + +static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd) +{ + adpt_hba* pHba; + u32 hba_status; + u32 dev_status; + u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits + // I know this would look cleaner if I just read bytes + // but the model I have been using for all the rest of the + // io is in 4 byte words - so I keep that model + u16 detailed_status = readl(reply+16) &0xffff; + dev_status = (detailed_status & 0xff); + hba_status = detailed_status >> 8; + + // calculate resid for sg + scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+20)); + + pHba = (adpt_hba*) cmd->device->host->hostdata[0]; + + cmd->sense_buffer[0] = '\0'; // initialize sense valid flag to false + + if(!(reply_flags & MSG_FAIL)) { + switch(detailed_status & I2O_SCSI_DSC_MASK) { + case I2O_SCSI_DSC_SUCCESS: + cmd->result = (DID_OK << 16); + // handle underflow + if (readl(reply+20) < cmd->underflow) { + cmd->result = (DID_ERROR <<16); + printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name); + } + break; + case I2O_SCSI_DSC_REQUEST_ABORTED: + cmd->result = (DID_ABORT << 16); + break; + case I2O_SCSI_DSC_PATH_INVALID: + case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: + case I2O_SCSI_DSC_SELECTION_TIMEOUT: + case I2O_SCSI_DSC_COMMAND_TIMEOUT: + case I2O_SCSI_DSC_NO_ADAPTER: + case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE: + printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n", + pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]); + cmd->result = (DID_TIME_OUT << 16); + break; + case I2O_SCSI_DSC_ADAPTER_BUSY: + case I2O_SCSI_DSC_BUS_BUSY: + cmd->result = (DID_BUS_BUSY << 16); + break; + case I2O_SCSI_DSC_SCSI_BUS_RESET: + case I2O_SCSI_DSC_BDR_MESSAGE_SENT: + cmd->result = (DID_RESET << 16); + break; + case I2O_SCSI_DSC_PARITY_ERROR_FAILURE: + printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name); + cmd->result = (DID_PARITY << 16); + break; + case I2O_SCSI_DSC_UNABLE_TO_ABORT: + case I2O_SCSI_DSC_COMPLETE_WITH_ERROR: + case I2O_SCSI_DSC_UNABLE_TO_TERMINATE: + case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED: + case I2O_SCSI_DSC_AUTOSENSE_FAILED: + case I2O_SCSI_DSC_DATA_OVERRUN: + case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE: + case I2O_SCSI_DSC_SEQUENCE_FAILURE: + case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR: + case I2O_SCSI_DSC_PROVIDE_FAILURE: + case I2O_SCSI_DSC_REQUEST_TERMINATED: + case I2O_SCSI_DSC_IDE_MESSAGE_SENT: + case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT: + case I2O_SCSI_DSC_MESSAGE_RECEIVED: + case I2O_SCSI_DSC_INVALID_CDB: + case I2O_SCSI_DSC_LUN_INVALID: + case I2O_SCSI_DSC_SCSI_TID_INVALID: + case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE: + case I2O_SCSI_DSC_NO_NEXUS: + case I2O_SCSI_DSC_CDB_RECEIVED: + case I2O_SCSI_DSC_LUN_ALREADY_ENABLED: + case I2O_SCSI_DSC_QUEUE_FROZEN: + case I2O_SCSI_DSC_REQUEST_INVALID: + default: + printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", + pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, + hba_status, dev_status, cmd->cmnd[0]); + cmd->result = (DID_ERROR << 16); + break; + } + + // copy over the request sense data if it was a check + // condition status + if (dev_status == SAM_STAT_CHECK_CONDITION) { + u32 len = min(SCSI_SENSE_BUFFERSIZE, 40); + // Copy over the sense data + memcpy_fromio(cmd->sense_buffer, (reply+28) , len); + if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && + cmd->sense_buffer[2] == DATA_PROTECT ){ + /* This is to handle an array failed */ + cmd->result = (DID_TIME_OUT << 16); + printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", + pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, + hba_status, dev_status, cmd->cmnd[0]); + + } + } + } else { + /* In this condtion we could not talk to the tid + * the card rejected it. We should signal a retry + * for a limitted number of retries. + */ + cmd->result = (DID_TIME_OUT << 16); + printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n", + pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, + ((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]); + } + + cmd->result |= (dev_status); + + if(cmd->scsi_done != NULL){ + cmd->scsi_done(cmd); + } + return cmd->result; +} + + +static s32 adpt_rescan(adpt_hba* pHba) +{ + s32 rcode; + ulong flags = 0; + + if(pHba->host) + spin_lock_irqsave(pHba->host->host_lock, flags); + if ((rcode=adpt_i2o_lct_get(pHba)) < 0) + goto out; + if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0) + goto out; + rcode = 0; +out: if(pHba->host) + spin_unlock_irqrestore(pHba->host->host_lock, flags); + return rcode; +} + + +static s32 adpt_i2o_reparse_lct(adpt_hba* pHba) +{ + int i; + int max; + int tid; + struct i2o_device *d; + i2o_lct *lct = pHba->lct; + u8 bus_no = 0; + s16 scsi_id; + u64 scsi_lun; + u32 buf[10]; // at least 8 u32's + struct adpt_device* pDev = NULL; + struct i2o_device* pI2o_dev = NULL; + + if (lct == NULL) { + printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); + return -1; + } + + max = lct->table_size; + max -= 3; + max /= 9; + + // Mark each drive as unscanned + for (d = pHba->devices; d; d = d->next) { + pDev =(struct adpt_device*) d->owner; + if(!pDev){ + continue; + } + pDev->state |= DPTI_DEV_UNSCANNED; + } + + printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max); + + for(i=0;i<max;i++) { + if( lct->lct_entry[i].user_tid != 0xfff){ + continue; + } + + if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || + lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL || + lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ + tid = lct->lct_entry[i].tid; + if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { + printk(KERN_ERR"%s: Could not query device\n",pHba->name); + continue; + } + bus_no = buf[0]>>16; + if (bus_no >= MAX_CHANNEL) { /* Something wrong skip it */ + printk(KERN_WARNING + "%s: Channel number %d out of range\n", + pHba->name, bus_no); + continue; + } + + scsi_id = buf[1]; + scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); + pDev = pHba->channel[bus_no].device[scsi_id]; + /* da lun */ + while(pDev) { + if(pDev->scsi_lun == scsi_lun) { + break; + } + pDev = pDev->next_lun; + } + if(!pDev ) { // Something new add it + d = kmalloc(sizeof(struct i2o_device), + GFP_ATOMIC); + if(d==NULL) + { + printk(KERN_CRIT "Out of memory for I2O device data.\n"); + return -ENOMEM; + } + + d->controller = pHba; + d->next = NULL; + + memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); + + d->flags = 0; + adpt_i2o_report_hba_unit(pHba, d); + adpt_i2o_install_device(pHba, d); + + pDev = pHba->channel[bus_no].device[scsi_id]; + if( pDev == NULL){ + pDev = + kzalloc(sizeof(struct adpt_device), + GFP_ATOMIC); + if(pDev == NULL) { + return -ENOMEM; + } + pHba->channel[bus_no].device[scsi_id] = pDev; + } else { + while (pDev->next_lun) { + pDev = pDev->next_lun; + } + pDev = pDev->next_lun = + kzalloc(sizeof(struct adpt_device), + GFP_ATOMIC); + if(pDev == NULL) { + return -ENOMEM; + } + } + pDev->tid = d->lct_data.tid; + pDev->scsi_channel = bus_no; + pDev->scsi_id = scsi_id; + pDev->scsi_lun = scsi_lun; + pDev->pI2o_dev = d; + d->owner = pDev; + pDev->type = (buf[0])&0xff; + pDev->flags = (buf[0]>>8)&0xff; + // Too late, SCSI system has made up it's mind, but what the hey ... + if(scsi_id > pHba->top_scsi_id){ + pHba->top_scsi_id = scsi_id; + } + if(scsi_lun > pHba->top_scsi_lun){ + pHba->top_scsi_lun = scsi_lun; + } + continue; + } // end of new i2o device + + // We found an old device - check it + while(pDev) { + if(pDev->scsi_lun == scsi_lun) { + if(!scsi_device_online(pDev->pScsi_dev)) { + printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n", + pHba->name,bus_no,scsi_id,scsi_lun); + if (pDev->pScsi_dev) { + scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING); + } + } + d = pDev->pI2o_dev; + if(d->lct_data.tid != tid) { // something changed + pDev->tid = tid; + memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); + if (pDev->pScsi_dev) { + pDev->pScsi_dev->changed = TRUE; + pDev->pScsi_dev->removable = TRUE; + } + } + // Found it - mark it scanned + pDev->state = DPTI_DEV_ONLINE; + break; + } + pDev = pDev->next_lun; + } + } + } + for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) { + pDev =(struct adpt_device*) pI2o_dev->owner; + if(!pDev){ + continue; + } + // Drive offline drives that previously existed but could not be found + // in the LCT table + if (pDev->state & DPTI_DEV_UNSCANNED){ + pDev->state = DPTI_DEV_OFFLINE; + printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun); + if (pDev->pScsi_dev) { + scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE); + } + } + } + return 0; +} + +static void adpt_fail_posted_scbs(adpt_hba* pHba) +{ + struct scsi_cmnd* cmd = NULL; + struct scsi_device* d = NULL; + + shost_for_each_device(d, pHba->host) { + unsigned long flags; + spin_lock_irqsave(&d->list_lock, flags); + list_for_each_entry(cmd, &d->cmd_list, list) { + if(cmd->serial_number == 0){ + continue; + } + cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1); + cmd->scsi_done(cmd); + } + spin_unlock_irqrestore(&d->list_lock, flags); + } +} + + +/*============================================================================ + * Routines from i2o subsystem + *============================================================================ + */ + + + +/* + * Bring an I2O controller into HOLD state. See the spec. + */ +static int adpt_i2o_activate_hba(adpt_hba* pHba) +{ + int rcode; + + if(pHba->initialized ) { + if (adpt_i2o_status_get(pHba) < 0) { + if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ + printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); + return rcode; + } + if (adpt_i2o_status_get(pHba) < 0) { + printk(KERN_INFO "HBA not responding.\n"); + return -1; + } + } + + if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) { + printk(KERN_CRIT "%s: hardware fault\n", pHba->name); + return -1; + } + + if (pHba->status_block->iop_state == ADAPTER_STATE_READY || + pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL || + pHba->status_block->iop_state == ADAPTER_STATE_HOLD || + pHba->status_block->iop_state == ADAPTER_STATE_FAILED) { + adpt_i2o_reset_hba(pHba); + if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) { + printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name); + return -1; + } + } + } else { + if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ + printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); + return rcode; + } + + } + + if (adpt_i2o_init_outbound_q(pHba) < 0) { + return -1; + } + + /* In HOLD state */ + + if (adpt_i2o_hrt_get(pHba) < 0) { + return -1; + } + + return 0; +} + +/* + * Bring a controller online into OPERATIONAL state. + */ + +static int adpt_i2o_online_hba(adpt_hba* pHba) +{ + if (adpt_i2o_systab_send(pHba) < 0) { + adpt_i2o_delete_hba(pHba); + return -1; + } + /* In READY state */ + + if (adpt_i2o_enable_hba(pHba) < 0) { + adpt_i2o_delete_hba(pHba); + return -1; + } + + /* In OPERATIONAL state */ + return 0; +} + +static s32 adpt_send_nop(adpt_hba*pHba,u32 m) +{ + u32 __iomem *msg; + ulong timeout = jiffies + 5*HZ; + + while(m == EMPTY_QUEUE){ + rmb(); + m = readl(pHba->post_port); + if(m != EMPTY_QUEUE){ + break; + } + if(time_after(jiffies,timeout)){ + printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name); + return 2; + } + schedule_timeout_uninterruptible(1); + } + msg = (u32 __iomem *)(pHba->msg_addr_virt + m); + writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]); + writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]); + writel( 0,&msg[2]); + wmb(); + + writel(m, pHba->post_port); + wmb(); + return 0; +} + +static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba) +{ + u8 *status; + dma_addr_t addr; + u32 __iomem *msg = NULL; + int i; + ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ; + u32 m; + + do { + rmb(); + m = readl(pHba->post_port); + if (m != EMPTY_QUEUE) { + break; + } + + if(time_after(jiffies,timeout)){ + printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name); + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while(m == EMPTY_QUEUE); + + msg=(u32 __iomem *)(pHba->msg_addr_virt+m); + + status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); + if (!status) { + adpt_send_nop(pHba, m); + printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n", + pHba->name); + return -ENOMEM; + } + memset(status, 0, 4); + + writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]); + writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]); + writel(0, &msg[2]); + writel(0x0106, &msg[3]); /* Transaction context */ + writel(4096, &msg[4]); /* Host page frame size */ + writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]); /* Outbound msg frame size and Initcode */ + writel(0xD0000004, &msg[6]); /* Simple SG LE, EOB */ + writel((u32)addr, &msg[7]); + + writel(m, pHba->post_port); + wmb(); + + // Wait for the reply status to come back + do { + if (*status) { + if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) { + break; + } + } + rmb(); + if(time_after(jiffies,timeout)){ + printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name); + /* We lose 4 bytes of "status" here, but we + cannot free these because controller may + awake and corrupt those bytes at any time */ + /* dma_free_coherent(&pHba->pDev->dev, 4, status, addr); */ + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while (1); + + // If the command was successful, fill the fifo with our reply + // message packets + if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) { + dma_free_coherent(&pHba->pDev->dev, 4, status, addr); + return -2; + } + dma_free_coherent(&pHba->pDev->dev, 4, status, addr); + + if(pHba->reply_pool != NULL) { + dma_free_coherent(&pHba->pDev->dev, + pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, + pHba->reply_pool, pHba->reply_pool_pa); + } + + pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev, + pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, + &pHba->reply_pool_pa, GFP_KERNEL); + if (!pHba->reply_pool) { + printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name); + return -ENOMEM; + } + memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4); + + for(i = 0; i < pHba->reply_fifo_size; i++) { + writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4), + pHba->reply_port); + wmb(); + } + adpt_i2o_status_get(pHba); + return 0; +} + + +/* + * I2O System Table. Contains information about + * all the IOPs in the system. Used to inform IOPs + * about each other's existence. + * + * sys_tbl_ver is the CurrentChangeIndicator that is + * used by IOPs to track changes. + */ + + + +static s32 adpt_i2o_status_get(adpt_hba* pHba) +{ + ulong timeout; + u32 m; + u32 __iomem *msg; + u8 *status_block=NULL; + + if(pHba->status_block == NULL) { + pHba->status_block = dma_alloc_coherent(&pHba->pDev->dev, + sizeof(i2o_status_block), + &pHba->status_block_pa, GFP_KERNEL); + if(pHba->status_block == NULL) { + printk(KERN_ERR + "dpti%d: Get Status Block failed; Out of memory. \n", + pHba->unit); + return -ENOMEM; + } + } + memset(pHba->status_block, 0, sizeof(i2o_status_block)); + status_block = (u8*)(pHba->status_block); + timeout = jiffies+TMOUT_GETSTATUS*HZ; + do { + rmb(); + m = readl(pHba->post_port); + if (m != EMPTY_QUEUE) { + break; + } + if(time_after(jiffies,timeout)){ + printk(KERN_ERR "%s: Timeout waiting for message !\n", + pHba->name); + return -ETIMEDOUT; + } + schedule_timeout_uninterruptible(1); + } while(m==EMPTY_QUEUE); + + + msg=(u32 __iomem *)(pHba->msg_addr_virt+m); + + writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]); + writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]); + writel(1, &msg[2]); + writel(0, &msg[3]); + writel(0, &msg[4]); + writel(0, &msg[5]); + writel( dma_low(pHba->status_block_pa), &msg[6]); + writel( dma_high(pHba->status_block_pa), &msg[7]); + writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes + + //post message + writel(m, pHba->post_port); + wmb(); + + while(status_block[87]!=0xff){ + if(time_after(jiffies,timeout)){ + printk(KERN_ERR"dpti%d: Get status timeout.\n", + pHba->unit); + return -ETIMEDOUT; + } + rmb(); + schedule_timeout_uninterruptible(1); + } + + // Set up our number of outbound and inbound messages + pHba->post_fifo_size = pHba->status_block->max_inbound_frames; + if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) { + pHba->post_fifo_size = MAX_TO_IOP_MESSAGES; + } + + pHba->reply_fifo_size = pHba->status_block->max_outbound_frames; + if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) { + pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES; + } + + // Calculate the Scatter Gather list size + if (dpt_dma64(pHba)) { + pHba->sg_tablesize + = ((pHba->status_block->inbound_frame_size * 4 + - 14 * sizeof(u32)) + / (sizeof(struct sg_simple_element) + sizeof(u32))); + } else { + pHba->sg_tablesize + = ((pHba->status_block->inbound_frame_size * 4 + - 12 * sizeof(u32)) + / sizeof(struct sg_simple_element)); + } + if (pHba->sg_tablesize > SG_LIST_ELEMENTS) { + pHba->sg_tablesize = SG_LIST_ELEMENTS; + } + + +#ifdef DEBUG + printk("dpti%d: State = ",pHba->unit); + switch(pHba->status_block->iop_state) { + case 0x01: + printk("INIT\n"); + break; + case 0x02: + printk("RESET\n"); + break; + case 0x04: + printk("HOLD\n"); + break; + case 0x05: + printk("READY\n"); + break; + case 0x08: + printk("OPERATIONAL\n"); + break; + case 0x10: + printk("FAILED\n"); + break; + case 0x11: + printk("FAULTED\n"); + break; + default: + printk("%x (unknown!!)\n",pHba->status_block->iop_state); + } +#endif + return 0; +} + +/* + * Get the IOP's Logical Configuration Table + */ +static int adpt_i2o_lct_get(adpt_hba* pHba) +{ + u32 msg[8]; + int ret; + u32 buf[16]; + + if ((pHba->lct_size == 0) || (pHba->lct == NULL)){ + pHba->lct_size = pHba->status_block->expected_lct_size; + } + do { + if (pHba->lct == NULL) { + pHba->lct = dma_alloc_coherent(&pHba->pDev->dev, + pHba->lct_size, &pHba->lct_pa, + GFP_ATOMIC); + if(pHba->lct == NULL) { + printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n", + pHba->name); + return -ENOMEM; + } + } + memset(pHba->lct, 0, pHba->lct_size); + + msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6; + msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID; + msg[2] = 0; + msg[3] = 0; + msg[4] = 0xFFFFFFFF; /* All devices */ + msg[5] = 0x00000000; /* Report now */ + msg[6] = 0xD0000000|pHba->lct_size; + msg[7] = (u32)pHba->lct_pa; + + if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) { + printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n", + pHba->name, ret); + printk(KERN_ERR"Adaptec: Error Reading Hardware.\n"); + return ret; + } + + if ((pHba->lct->table_size << 2) > pHba->lct_size) { + pHba->lct_size = pHba->lct->table_size << 2; + dma_free_coherent(&pHba->pDev->dev, pHba->lct_size, + pHba->lct, pHba->lct_pa); + pHba->lct = NULL; + } + } while (pHba->lct == NULL); + + PDEBUG("%s: Hardware resource table read.\n", pHba->name); + + + // I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO; + if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) { + pHba->FwDebugBufferSize = buf[1]; + pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0], + pHba->FwDebugBufferSize); + if (pHba->FwDebugBuffer_P) { + pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P + + FW_DEBUG_FLAGS_OFFSET; + pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + + FW_DEBUG_BLED_OFFSET; + pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1; + pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + + FW_DEBUG_STR_LENGTH_OFFSET; + pHba->FwDebugBuffer_P += buf[2]; + pHba->FwDebugFlags = 0; + } + } + + return 0; +} + +static int adpt_i2o_build_sys_table(void) +{ + adpt_hba* pHba = hba_chain; + int count = 0; + + if (sys_tbl) + dma_free_coherent(&pHba->pDev->dev, sys_tbl_len, + sys_tbl, sys_tbl_pa); + + sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs + (hba_count) * sizeof(struct i2o_sys_tbl_entry); + + sys_tbl = dma_alloc_coherent(&pHba->pDev->dev, + sys_tbl_len, &sys_tbl_pa, GFP_KERNEL); + if (!sys_tbl) { + printk(KERN_WARNING "SysTab Set failed. Out of memory.\n"); + return -ENOMEM; + } + memset(sys_tbl, 0, sys_tbl_len); + + sys_tbl->num_entries = hba_count; + sys_tbl->version = I2OVERSION; + sys_tbl->change_ind = sys_tbl_ind++; + + for(pHba = hba_chain; pHba; pHba = pHba->next) { + u64 addr; + // Get updated Status Block so we have the latest information + if (adpt_i2o_status_get(pHba)) { + sys_tbl->num_entries--; + continue; // try next one + } + + sys_tbl->iops[count].org_id = pHba->status_block->org_id; + sys_tbl->iops[count].iop_id = pHba->unit + 2; + sys_tbl->iops[count].seg_num = 0; + sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version; + sys_tbl->iops[count].iop_state = pHba->status_block->iop_state; + sys_tbl->iops[count].msg_type = pHba->status_block->msg_type; + sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size; + sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ?? + sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities; + addr = pHba->base_addr_phys + 0x40; + sys_tbl->iops[count].inbound_low = dma_low(addr); + sys_tbl->iops[count].inbound_high = dma_high(addr); + + count++; + } + +#ifdef DEBUG +{ + u32 *table = (u32*)sys_tbl; + printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2)); + for(count = 0; count < (sys_tbl_len >>2); count++) { + printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", + count, table[count]); + } +} +#endif + + return 0; +} + + +/* + * Dump the information block associated with a given unit (TID) + */ + +static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d) +{ + char buf[64]; + int unit = d->lct_data.tid; + + printk(KERN_INFO "TID %3.3d ", unit); + + if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0) + { + buf[16]=0; + printk(" Vendor: %-12.12s", buf); + } + if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0) + { + buf[16]=0; + printk(" Device: %-12.12s", buf); + } + if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0) + { + buf[8]=0; + printk(" Rev: %-12.12s\n", buf); + } +#ifdef DEBUG + printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id)); + printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class); + printk(KERN_INFO "\tFlags: "); + + if(d->lct_data.device_flags&(1<<0)) + printk("C"); // ConfigDialog requested + if(d->lct_data.device_flags&(1<<1)) + printk("U"); // Multi-user capable + if(!(d->lct_data.device_flags&(1<<4))) + printk("P"); // Peer service enabled! + if(!(d->lct_data.device_flags&(1<<5))) + printk("M"); // Mgmt service enabled! + printk("\n"); +#endif +} + +#ifdef DEBUG +/* + * Do i2o class name lookup + */ +static const char *adpt_i2o_get_class_name(int class) +{ + int idx = 16; + static char *i2o_class_name[] = { + "Executive", + "Device Driver Module", + "Block Device", + "Tape Device", + "LAN Interface", + "WAN Interface", + "Fibre Channel Port", + "Fibre Channel Device", + "SCSI Device", + "ATE Port", + "ATE Device", + "Floppy Controller", + "Floppy Device", + "Secondary Bus Port", + "Peer Transport Agent", + "Peer Transport", + "Unknown" + }; + + switch(class&0xFFF) { + case I2O_CLASS_EXECUTIVE: + idx = 0; break; + case I2O_CLASS_DDM: + idx = 1; break; + case I2O_CLASS_RANDOM_BLOCK_STORAGE: + idx = 2; break; + case I2O_CLASS_SEQUENTIAL_STORAGE: + idx = 3; break; + case I2O_CLASS_LAN: + idx = 4; break; + case I2O_CLASS_WAN: + idx = 5; break; + case I2O_CLASS_FIBRE_CHANNEL_PORT: + idx = 6; break; + case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL: + idx = 7; break; + case I2O_CLASS_SCSI_PERIPHERAL: + idx = 8; break; + case I2O_CLASS_ATE_PORT: + idx = 9; break; + case I2O_CLASS_ATE_PERIPHERAL: + idx = 10; break; + case I2O_CLASS_FLOPPY_CONTROLLER: + idx = 11; break; + case I2O_CLASS_FLOPPY_DEVICE: + idx = 12; break; + case I2O_CLASS_BUS_ADAPTER_PORT: + idx = 13; break; + case I2O_CLASS_PEER_TRANSPORT_AGENT: + idx = 14; break; + case I2O_CLASS_PEER_TRANSPORT: + idx = 15; break; + } + return i2o_class_name[idx]; +} +#endif + + +static s32 adpt_i2o_hrt_get(adpt_hba* pHba) +{ + u32 msg[6]; + int ret, size = sizeof(i2o_hrt); + + do { + if (pHba->hrt == NULL) { + pHba->hrt = dma_alloc_coherent(&pHba->pDev->dev, + size, &pHba->hrt_pa, GFP_KERNEL); + if (pHba->hrt == NULL) { + printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name); + return -ENOMEM; + } + } + + msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4; + msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID; + msg[2]= 0; + msg[3]= 0; + msg[4]= (0xD0000000 | size); /* Simple transaction */ + msg[5]= (u32)pHba->hrt_pa; /* Dump it here */ + + if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) { + printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret); + return ret; + } + + if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) { + int newsize = pHba->hrt->num_entries * pHba->hrt->entry_len << 2; + dma_free_coherent(&pHba->pDev->dev, size, + pHba->hrt, pHba->hrt_pa); + size = newsize; + pHba->hrt = NULL; + } + } while(pHba->hrt == NULL); + return 0; +} + +/* + * Query one scalar group value or a whole scalar group. + */ +static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid, + int group, int field, void *buf, int buflen) +{ + u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field }; + u8 *opblk_va; + dma_addr_t opblk_pa; + u8 *resblk_va; + dma_addr_t resblk_pa; + + int size; + + /* 8 bytes for header */ + resblk_va = dma_alloc_coherent(&pHba->pDev->dev, + sizeof(u8) * (8 + buflen), &resblk_pa, GFP_KERNEL); + if (resblk_va == NULL) { + printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name); + return -ENOMEM; + } + + opblk_va = dma_alloc_coherent(&pHba->pDev->dev, + sizeof(opblk), &opblk_pa, GFP_KERNEL); + if (opblk_va == NULL) { + dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), + resblk_va, resblk_pa); + printk(KERN_CRIT "%s: query operatio failed; Out of memory.\n", + pHba->name); + return -ENOMEM; + } + if (field == -1) /* whole group */ + opblk[4] = -1; + + memcpy(opblk_va, opblk, sizeof(opblk)); + size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid, + opblk_va, opblk_pa, sizeof(opblk), + resblk_va, resblk_pa, sizeof(u8)*(8+buflen)); + dma_free_coherent(&pHba->pDev->dev, sizeof(opblk), opblk_va, opblk_pa); + if (size == -ETIME) { + dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), + resblk_va, resblk_pa); + printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name); + return -ETIME; + } else if (size == -EINTR) { + dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), + resblk_va, resblk_pa); + printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name); + return -EINTR; + } + + memcpy(buf, resblk_va+8, buflen); /* cut off header */ + + dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), + resblk_va, resblk_pa); + if (size < 0) + return size; + + return buflen; +} + + +/* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET + * + * This function can be used for all UtilParamsGet/Set operations. + * The OperationBlock is given in opblk-buffer, + * and results are returned in resblk-buffer. + * Note that the minimum sized resblk is 8 bytes and contains + * ResultCount, ErrorInfoSize, BlockStatus and BlockSize. + */ +static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid, + void *opblk_va, dma_addr_t opblk_pa, int oplen, + void *resblk_va, dma_addr_t resblk_pa, int reslen) +{ + u32 msg[9]; + u32 *res = (u32 *)resblk_va; + int wait_status; + + msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5; + msg[1] = cmd << 24 | HOST_TID << 12 | tid; + msg[2] = 0; + msg[3] = 0; + msg[4] = 0; + msg[5] = 0x54000000 | oplen; /* OperationBlock */ + msg[6] = (u32)opblk_pa; + msg[7] = 0xD0000000 | reslen; /* ResultBlock */ + msg[8] = (u32)resblk_pa; + + if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) { + printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk_va); + return wait_status; /* -DetailedStatus */ + } + + if (res[1]&0x00FF0000) { /* BlockStatus != SUCCESS */ + printk(KERN_WARNING "%s: %s - Error:\n ErrorInfoSize = 0x%02x, " + "BlockStatus = 0x%02x, BlockSize = 0x%04x\n", + pHba->name, + (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" + : "PARAMS_GET", + res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF); + return -((res[1] >> 16) & 0xFF); /* -BlockStatus */ + } + + return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */ +} + + +static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba) +{ + u32 msg[4]; + int ret; + + adpt_i2o_status_get(pHba); + + /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */ + + if((pHba->status_block->iop_state != ADAPTER_STATE_READY) && + (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){ + return 0; + } + + msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID; + msg[2] = 0; + msg[3] = 0; + + if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { + printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n", + pHba->unit, -ret); + } else { + printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit); + } + + adpt_i2o_status_get(pHba); + return ret; +} + + +/* + * Enable IOP. Allows the IOP to resume external operations. + */ +static int adpt_i2o_enable_hba(adpt_hba* pHba) +{ + u32 msg[4]; + int ret; + + adpt_i2o_status_get(pHba); + if(!pHba->status_block){ + return -ENOMEM; + } + /* Enable only allowed on READY state */ + if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL) + return 0; + + if(pHba->status_block->iop_state != ADAPTER_STATE_READY) + return -EINVAL; + + msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; + msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID; + msg[2]= 0; + msg[3]= 0; + + if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { + printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n", + pHba->name, ret); + } else { + PDEBUG("%s: Enabled.\n", pHba->name); + } + + adpt_i2o_status_get(pHba); + return ret; +} + + +static int adpt_i2o_systab_send(adpt_hba* pHba) +{ + u32 msg[12]; + int ret; + + msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6; + msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID; + msg[2] = 0; + msg[3] = 0; + msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */ + msg[5] = 0; /* Segment 0 */ + + /* + * Provide three SGL-elements: + * System table (SysTab), Private memory space declaration and + * Private i/o space declaration + */ + msg[6] = 0x54000000 | sys_tbl_len; + msg[7] = (u32)sys_tbl_pa; + msg[8] = 0x54000000 | 0; + msg[9] = 0; + msg[10] = 0xD4000000 | 0; + msg[11] = 0; + + if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) { + printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n", + pHba->name, ret); + } +#ifdef DEBUG + else { + PINFO("%s: SysTab set.\n", pHba->name); + } +#endif + + return ret; + } + + +/*============================================================================ + * + *============================================================================ + */ + + +#ifdef UARTDELAY + +static static void adpt_delay(int millisec) +{ + int i; + for (i = 0; i < millisec; i++) { + udelay(1000); /* delay for one millisecond */ + } +} + +#endif + +static struct scsi_host_template driver_template = { + .module = THIS_MODULE, + .name = "dpt_i2o", + .proc_name = "dpt_i2o", + .show_info = adpt_show_info, + .info = adpt_info, + .queuecommand = adpt_queue, + .eh_abort_handler = adpt_abort, + .eh_device_reset_handler = adpt_device_reset, + .eh_bus_reset_handler = adpt_bus_reset, + .eh_host_reset_handler = adpt_reset, + .bios_param = adpt_bios_param, + .slave_configure = adpt_slave_configure, + .can_queue = MAX_TO_IOP_MESSAGES, + .this_id = 7, + .cmd_per_lun = 1, + .use_clustering = ENABLE_CLUSTERING, +}; + +static int __init adpt_init(void) +{ + int error; + adpt_hba *pHba, *next; + + printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n"); + + error = adpt_detect(&driver_template); + if (error < 0) + return error; + if (hba_chain == NULL) + return -ENODEV; + + for (pHba = hba_chain; pHba; pHba = pHba->next) { + error = scsi_add_host(pHba->host, &pHba->pDev->dev); + if (error) + goto fail; + scsi_scan_host(pHba->host); + } + return 0; +fail: + for (pHba = hba_chain; pHba; pHba = next) { + next = pHba->next; + scsi_remove_host(pHba->host); + } + return error; +} + +static void __exit adpt_exit(void) +{ + adpt_hba *pHba, *next; + + for (pHba = hba_chain; pHba; pHba = pHba->next) + scsi_remove_host(pHba->host); + for (pHba = hba_chain; pHba; pHba = next) { + next = pHba->next; + adpt_release(pHba->host); + } +} + +module_init(adpt_init); +module_exit(adpt_exit); + +MODULE_LICENSE("GPL"); |