dpt_i2o.c
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- /***************************************************************************
- dpti.c - description
- -------------------
- begin : Thu Sep 7 2000
- copyright : (C) 2000 by Adaptec
- email : deanna_bonds@adaptec.com
- July 30, 2001 First version being submitted
- for inclusion in the kernel. V2.4
- See README.dpti 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. *
- * *
- ***************************************************************************/
- //#define DEBUG 1
- //#define UARTDELAY 1
- // On the real kernel ADDR32 should always be zero for 2.4. GFP_HIGH allocates
- // high pages. Keep the macro around because of the broken unmerged ia64 tree
- #define ADDR32 (0)
- #include <linux/version.h>
- #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/config.h> /* for CONFIG_PCI */
- #include <linux/pci.h> /* for PCI support */
- #include <linux/proc_fs.h>
- #include <linux/blk.h>
- #include <linux/delay.h> /* for udelay */
- #include <linux/tqueue.h>
- #include <linux/interrupt.h>
- #include <linux/kernel.h> /* for printk */
- #include <linux/sched.h>
- #include <linux/reboot.h>
- #include <linux/smp_lock.h>
- #include <linux/timer.h>
- #include <linux/string.h>
- #include <linux/ioport.h>
- #include <linux/stat.h>
- #include <asm/processor.h> /* for boot_cpu_data */
- #include <asm/pgtable.h>
- #include <asm/io.h> /* for virt_to_bus, etc. */
- #include "scsi.h"
- #include "hosts.h"
- #include "sd.h"
- #include "dpt/dptsig.h"
- #include "dpti.h"
- /*============================================================================
- * Create a binary signature - this is read by dptsig
- * Needed for our management apps
- *============================================================================
- */
- 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,
- #elif defined(__alpha__)
- PROC_ALPHA ,
- #else
- (-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
- *============================================================================
- */
- DECLARE_MUTEX(adpt_configuration_lock);
- static struct i2o_sys_tbl *sys_tbl = NULL;
- static int sys_tbl_ind = 0;
- static int sys_tbl_len = 0;
- static adpt_hba* hbas[DPTI_MAX_HBA];
- static adpt_hba* hba_chain = NULL;
- static int hba_count = 0;
- // Debug flags to be put into the HBA flags field when initialized
- // Make sure to enable DEBUG_PRINT for these flags to work
- static unsigned long DebugFlags = HBA_FLAGS_DBG_SCAN_B | HBA_FLAGS_DBG_FLAGS_MASK;
- static struct file_operations adpt_fops = {
- ioctl: adpt_ioctl,
- open: adpt_open,
- release: adpt_close
- };
- #ifdef REBOOT_NOTIFIER
- static struct notifier_block adpt_reboot_notifier =
- {
- adpt_reboot_event,
- NULL,
- 0
- };
- #endif
- /* 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 spinlock_t adpt_post_wait_lock = SPIN_LOCK_UNLOCKED;
- /*============================================================================
- * Functions
- *============================================================================
- */
- static u8 adpt_read_blink_led(adpt_hba* host)
- {
- if(host->FwDebugBLEDflag_P != 0) {
- 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(Scsi_Host_Template* sht)
- {
- struct pci_dev *pDev = NULL;
- adpt_hba* pHba;
- adpt_init();
- sht->use_new_eh_code = 1;
- PINFO("Detecting Adaptec I2O RAID controllers...n");
- /* search for all Adatpec I2O RAID cards */
- while ((pDev = pci_find_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 devicen");
- PERROR("Will not try to detect others.n");
- return hba_count-1;
- }
- }
- }
- /* In INIT state, Activate IOPs */
- for (pHba = hba_chain; pHba; pHba = 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 staten");
- /* 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 staten");
- printk(KERN_INFO"dpti: If you have a lot of devices this could take a few minutes.n");
- for (pHba = hba_chain; pHba; pHba = 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);
- }
- for (pHba = hba_chain; pHba; pHba = pHba->next) {
- if( adpt_scsi_register(pHba,sht) < 0){
- adpt_i2o_delete_hba(pHba);
- continue;
- }
- pHba->initialized = TRUE;
- pHba->state &= ~DPTI_STATE_RESET;
- }
- // 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);
- return 0;
- }
- static void adpt_inquiry(adpt_hba* pHba)
- {
- u32 msg[14];
- u32 *mptr;
- u32 *lenptr;
- int direction;
- int scsidir;
- u32 len;
- u32 reqlen;
- u8* buf;
- u8 scb[16];
- s32 rcode;
- memset(msg, 0, sizeof(msg));
- buf = (u8*)kmalloc(80,GFP_KERNEL|ADDR32);
- if(!buf){
- printk(KERN_ERR"%s: Could not allocate buffern",pHba->name);
- return;
- }
- memset((void*)buf, 0, 36);
-
- len = 36;
- direction = 0x00000000;
- scsidir =0x40000000; // DATA IN (iop<--dev)
- reqlen = 14; // SINGLE SGE
- /* 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;
- *mptr++ = 0xD0000000|direction|len;
- *mptr++ = virt_to_bus(buf);
- // 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);
- } 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] = ' '; /* precautionary */
- }
- kfree(buf);
- adpt_i2o_status_get(pHba);
- return ;
- }
- static void adpt_select_queue_depths(struct Scsi_Host *host, Scsi_Device * devicelist)
- {
- Scsi_Device *device; /* scsi layer per device information */
- adpt_hba* pHba;
- pHba = (adpt_hba *) host->hostdata[0];
- for (device = devicelist; device != NULL; device = device->next) {
- if (device->host != host) {
- continue;
- }
- if (host->can_queue) {
- device->queue_depth = host->can_queue - 1;
- } else {
- device->queue_depth = 1;
- }
- }
- }
- static int adpt_queue(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
- {
- adpt_hba* pHba = NULL;
- struct adpt_device* pDev = NULL; /* dpt per device information */
- ulong timeout = jiffies + (TMOUT_SCSI*HZ);
- 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->host->hostdata[0];
- if (!pHba) {
- return FAILED;
- }
- rmb();
- /*
- * TODO: I need to block here if I am processing ioctl cmds
- * but if the outstanding cmds all finish before the ioctl,
- * the scsi-core will not know to start sending cmds to me again.
- * I need to a way to restart the scsi-cores queues or should I block
- * calling scsi_done on the outstanding cmds instead
- * for now we don't set the IOCTL state
- */
- if(((pHba->state) & DPTI_STATE_IOCTL) || ((pHba->state) & DPTI_STATE_RESET)) {
- pHba->host->last_reset = jiffies;
- pHba->host->resetting = 1;
- return 1;
- }
- if(cmd->eh_state != SCSI_STATE_QUEUED){
- // If we are not doing error recovery
- mod_timer(&cmd->eh_timeout, timeout);
- }
- // 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->channel, (u32)cmd->target, (u32)cmd-> 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;
- }
- (struct adpt_device*)(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 int adpt_bios_param(Disk* disk, kdev_t dev, 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 (disk->capacity < 0x2000 ) { // floppy
- heads = 18;
- sectors = 2;
- }
- // else if between 0x2000 and 0x20000
- else if (disk->capacity < 0x20000) {
- heads = 64;
- sectors = 32;
- }
- // else if between 0x20000 and 0x40000
- else if (disk->capacity < 0x40000) {
- heads = 65;
- sectors = 63;
- }
- // else if between 0x4000 and 0x80000
- else if (disk->capacity < 0x80000) {
- heads = 128;
- sectors = 63;
- }
- // else if greater than 0x80000
- else {
- heads = 255;
- sectors = 63;
- }
- cylinders = disk->capacity / (heads * sectors);
- // Special case if CDROM
- if(disk->device->type == 5) { // CDROM
- heads = 252;
- sectors = 63;
- cylinders = 1111;
- }
- geom[0] = heads;
- geom[1] = sectors;
- geom[2] = cylinders;
-
- PDEBUG("adpt_bios_param: exitn");
- 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_proc_info(char *buffer, char **start, off_t offset,
- int length, int hostno, int inout)
- {
- struct adpt_device* d;
- int id;
- int chan;
- int len = 0;
- int begin = 0;
- int pos = 0;
- adpt_hba* pHba;
- struct Scsi_Host *host;
- int unit;
- *start = buffer;
- if (inout == TRUE) {
- /*
- * The user has done a write and wants us to take the
- * data in the buffer and do something with it.
- * proc_scsiwrite calls us with inout = 1
- *
- * Read data from buffer (writing to us) - NOT SUPPORTED
- */
- return -EINVAL;
- }
- /*
- * inout = 0 means the user has done a read and wants information
- * returned, so we write information about the cards into the buffer
- * proc_scsiread() calls us with inout = 0
- */
- // Find HBA (host bus adapter) we are looking for
- down(&adpt_configuration_lock);
- for (pHba = hba_chain; pHba; pHba = pHba->next) {
- if (pHba->host->host_no == hostno) {
- break; /* found adapter */
- }
- }
- up(&adpt_configuration_lock);
- if (pHba == NULL) {
- return 0;
- }
- host = pHba->host;
- len = sprintf(buffer , "Adaptec I2O RAID Driver Version: %snn", DPT_I2O_VERSION);
- len += sprintf(buffer+len, "%sn", pHba->detail);
- len += sprintf(buffer+len, "SCSI Host=scsi%d Control Node=/dev/%s irq=%dn",
- pHba->host->host_no, pHba->name, host->irq);
- len += sprintf(buffer+len, "tpost fifo size = %dntreply fifo size = %dntsg table size = %dnn",
- host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize);
- pos = begin + len;
- /* CHECKPOINT */
- if(pos > offset + length) {
- goto stop_output;
- }
- if(pos <= offset) {
- /*
- * If we haven't even written to where we last left
- * off (the last time we were called), reset the
- * beginning pointer.
- */
- len = 0;
- begin = pos;
- }
- len += sprintf(buffer+len, "Devices:n");
- for(chan = 0; chan < MAX_CHANNEL; chan++) {
- for(id = 0; id < MAX_ID; id++) {
- d = pHba->channel[chan].device[id];
- while(d){
- len += sprintf(buffer+len,"t%-24.24s", d->pScsi_dev->vendor);
- len += sprintf(buffer+len," Rev: %-8.8sn", d->pScsi_dev->rev);
- pos = begin + len;
- /* CHECKPOINT */
- if(pos > offset + length) {
- goto stop_output;
- }
- if(pos <= offset) {
- len = 0;
- begin = pos;
- }
- unit = d->pI2o_dev->lct_data.tid;
- len += sprintf(buffer+len, "tTID=%d, (Channel=%d, Target=%d, Lun=%d) (%s)nn",
- unit, (int)d->scsi_channel, (int)d->scsi_id, (int)d->scsi_lun,
- d->pScsi_dev->online? "online":"offline");
- pos = begin + len;
- /* CHECKPOINT */
- if(pos > offset + length) {
- goto stop_output;
- }
- if(pos <= offset) {
- len = 0;
- begin = pos;
- }
- d = d->next_lun;
- }
- }
- }
- /*
- * begin is where we last checked our position with regards to offset
- * begin is always less than offset. len is relative to begin. It
- * is the number of bytes written past begin
- *
- */
- stop_output:
- /* stop the output and calculate the correct length */
- *(buffer + len) = ' ';
- *start = buffer + (offset - begin); /* Start of wanted data */
- len -= (offset - begin);
- if(len > length) {
- len = length;
- } else if(len < 0){
- len = 0;
- **start = ' ';
- }
- return len;
- }
- /*===========================================================================
- * Error Handling routines
- *===========================================================================
- */
- static int adpt_abort(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->host->hostdata[0];
- printk(KERN_INFO"%s: Trying to Abort cmd=%ldn",pHba->name, cmd->serial_number);
- if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
- printk(KERN_ERR "%s: Unable to abort: No device in cmndn",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] = (u32)cmd;
- if( (rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER)) != 0){
- if(rcode == -EOPNOTSUPP ){
- printk(KERN_INFO"%s: Abort cmd not supportedn",pHba->name);
- return FAILED;
- }
- printk(KERN_INFO"%s: Abort cmd=%ld failed.n",pHba->name, cmd->serial_number);
- return FAILED;
- }
- printk(KERN_INFO"%s: Abort cmd=%ld complete.n",pHba->name, cmd->serial_number);
- 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(Scsi_Cmnd* cmd)
- {
- adpt_hba* pHba;
- u32 msg[4];
- u32 rcode;
- int old_state;
- struct adpt_device* d = (void*) cmd->device->hostdata;
- pHba = (void*) cmd->host->hostdata[0];
- printk(KERN_INFO"%s: Trying to reset devicen",pHba->name);
- if (!d) {
- printk(KERN_INFO"%s: Reset Device: Device Not foundn",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;
- old_state = d->state;
- d->state |= DPTI_DEV_RESET;
- if( (rcode = adpt_i2o_post_wait(pHba, (void*)msg,sizeof(msg), FOREVER)) ){
- d->state = old_state;
- if(rcode == -EOPNOTSUPP ){
- printk(KERN_INFO"%s: Device reset not supportedn",pHba->name);
- return FAILED;
- }
- printk(KERN_INFO"%s: Device reset failedn",pHba->name);
- return FAILED;
- } else {
- d->state = old_state;
- printk(KERN_INFO"%s: Device reset successfuln",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(Scsi_Cmnd* cmd)
- {
- adpt_hba* pHba;
- u32 msg[4];
- pHba = (adpt_hba*)cmd->host->hostdata[0];
- memset(msg, 0, sizeof(msg));
- printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %dn",pHba->name, cmd->channel,pHba->channel[cmd->channel].tid );
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->channel].tid);
- msg[2] = 0;
- msg[3] = 0;
- if(adpt_i2o_post_wait(pHba, (void*)msg,sizeof(msg), FOREVER) ){
- 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(Scsi_Cmnd* cmd)
- {
- adpt_hba* pHba;
- int rcode;
- pHba = (adpt_hba*)cmd->host->hostdata[0];
- printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %dn",pHba->name,cmd->channel,pHba->channel[cmd->channel].tid );
- rcode = adpt_hba_reset(pHba);
- if(rcode == 0){
- printk(KERN_WARNING"%s: HBA reset completen",pHba->name);
- return SUCCESS;
- } else {
- printk(KERN_WARNING"%s: HBA reset failed (%x)n",pHba->name, rcode);
- return FAILED;
- }
- }
- // 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 activaten", 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 staten",pHba->name);
- if ((rcode=adpt_i2o_online_hba(pHba)) < 0) {
- adpt_i2o_delete_hba(pHba);
- return rcode;
- }
- PDEBUG("%s: in OPERATIONAL staten",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, *p2;
- printk(KERN_INFO"Shutting down Adaptec I2O controllers.n");
- printk(KERN_INFO" This could take a few minutes if there are many devices attachedn");
- /* 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. */
- p2 = NULL;
- // 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; p2 = p1, p1 = p2->next) {
- kfree(p1);
- }
- // spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
- adpt_post_wait_queue = 0;
- printk(KERN_INFO "Adaptec I2O controllers down.n");
- }
- /*
- * reboot/shutdown notification.
- *
- * - Quiesce each IOP in the system
- *
- */
- #ifdef REBOOT_NOTIFIER
- static int adpt_reboot_event(struct notifier_block *n, ulong code, void *p)
- {
- if(code != SYS_RESTART && code != SYS_HALT && code != SYS_POWER_OFF)
- return NOTIFY_DONE;
- adpt_i2o_sys_shutdown();
- return NOTIFY_DONE;
- }
- #endif
- static int adpt_install_hba(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;
- ulong base_addr_virt = 0;
- ulong msg_addr_virt = 0;
- int raptorFlag = FALSE;
- int i;
- if(pci_enable_device(pDev)) {
- return -EINVAL;
- }
- pci_set_master(pDev);
- 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;
- }
- base_addr_virt = (ulong)ioremap(base_addr0_phys,hba_map0_area_size);
- if(base_addr_virt == 0) {
- PERROR("dpti: adpt_config_hba: io remap failedn");
- return -EINVAL;
- }
- if(raptorFlag == TRUE) {
- msg_addr_virt = (ulong)ioremap(base_addr1_phys, hba_map1_area_size );
- if(msg_addr_virt == 0) {
- PERROR("dpti: adpt_config_hba: io remap failed on BAR1n");
- iounmap((void*)base_addr_virt);
- return -EINVAL;
- }
- } else {
- msg_addr_virt = base_addr_virt;
- }
-
- // Allocate and zero the data structure
- pHba = kmalloc(sizeof(adpt_hba), GFP_KERNEL);
- if( pHba == NULL) {
- if(msg_addr_virt != base_addr_virt){
- iounmap((void*)msg_addr_virt);
- }
- iounmap((void*)base_addr_virt);
- return -ENOMEM;
- }
- memset(pHba, 0, sizeof(adpt_hba));
- down(&adpt_configuration_lock);
- for(i=0;i<DPTI_MAX_HBA;i++) {
- if(hbas[i]==NULL) {
- hbas[i]=pHba;
- break;
- }
- }
- 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", i);
- hba_count++;
-
- up(&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 = (ulong)(base_addr_virt+0x30);
- pHba->post_port = (ulong)(base_addr_virt+0x40);
- pHba->reply_port = (ulong)(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;
- // Initializing the spinlocks
- spin_lock_init(&pHba->state_lock);
- if(raptorFlag == 0){
- printk(KERN_INFO"Adaptec I2O RAID controller %d at %lx size=%x irq=%dn",
- hba_count-1, base_addr_virt, hba_map0_area_size, pDev->irq);
- } else {
- printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%dn",hba_count-1, pDev->irq);
- printk(KERN_INFO" BAR0 %lx - size= %xn",base_addr_virt,hba_map0_area_size);
- printk(KERN_INFO" BAR1 %lx - size= %xn",msg_addr_virt,hba_map1_area_size);
- }
- if (request_irq (pDev->irq, adpt_isr, SA_SHIRQ, pHba->name, pHba)) {
- printk(KERN_ERR"%s: Couldn't register IRQ %dn", 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;
- down(&adpt_configuration_lock);
- // scsi_unregister calls our adpt_release which
- // does a quiese
- if(pHba->host){
- free_irq(pHba->host->irq, pHba);
- }
- for(i=0;i<DPTI_MAX_HBA;i++) {
- if(hbas[i]==pHba) {
- hbas[i] = NULL;
- }
- }
- 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--;
- up(&adpt_configuration_lock);
- iounmap((void*)pHba->base_addr_virt);
- if(pHba->msg_addr_virt != pHba->base_addr_virt){
- iounmap((void*)pHba->msg_addr_virt);
- }
- if(pHba->hrt) {
- kfree(pHba->hrt);
- }
- if(pHba->lct){
- kfree(pHba->lct);
- }
- if(pHba->status_block) {
- kfree(pHba->status_block);
- }
- if(pHba->reply_pool){
- kfree(pHba->reply_pool);
- }
- 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);
- }
- }
- }
- }
- kfree(pHba);
- if(hba_count <= 0){
- unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
- }
- }
- static int adpt_init(void)
- {
- int i;
- printk(KERN_INFO"Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "n");
- for (i = 0; i < DPTI_MAX_HBA; i++) {
- hbas[i] = NULL;
- }
- #ifdef REBOOT_NOTIFIER
- register_reboot_notifier(&adpt_reboot_notifier);
- #endif
- return 0;
- }
- static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 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 allocatedn");
- 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_KERNEL);
- adpt_wait_queue_t wait;
- 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;
- // this code is taken from kernel/sched.c:interruptible_sleep_on_timeout
- wait.task = current;
- init_waitqueue_entry(&wait, current);
- wq_write_lock_irqsave(&adpt_wq_i2o_post.lock,flags);
- __add_wait_queue(&adpt_wq_i2o_post, &wait);
- wq_write_unlock(&adpt_wq_i2o_post.lock);
- msg[2] |= 0x80000000 | ((u32)wait_data->id);
- timeout *= HZ;
- if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
- if(!timeout){
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irq(&io_request_lock);
- schedule();
- spin_lock_irq(&io_request_lock);
- } else {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irq(&io_request_lock);
- schedule_timeout(timeout*HZ);
- spin_lock_irq(&io_request_lock);
- }
- }
- wq_write_lock_irq(&adpt_wq_i2o_post.lock);
- __remove_wait_queue(&adpt_wq_i2o_post, &wait);
- wq_write_unlock_irqrestore(&adpt_wq_i2o_post.lock,flags);
- if(status == -ETIMEDOUT){
- printk(KERN_INFO"dpti%d: POST WAIT TIMEOUTn",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 *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;
- }
- } while(m == EMPTY_QUEUE);
-
- msg = (u32*) (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 loose commands that probably really completed
- printk(KERN_DEBUG"dpti: Could Not find task %d in wait queuen",context);
- printk(KERN_DEBUG" Tasks in wait queue:n");
- for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
- printk(KERN_DEBUG" %dn",p1->id);
- }
- return;
- }
- static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
- {
- u32 msg[8];
- u8* status;
- 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;
- }
- } while (m == EMPTY_QUEUE);
- status = (u8*)kmalloc(4, GFP_KERNEL|ADDR32);
- 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]=virt_to_bus(status);
- msg[7]=0;
- 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 Timeoutn",pHba->name);
- kfree(status);
- return -ETIMEDOUT;
- }
- rmb();
- }
- 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);
- return -ETIMEDOUT;
- }
- } 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 clearn",
- pHba->name);
- } else {
- PDEBUG("%s: Reset completed.n", pHba->name);
- }
- kfree(status);
- #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;
- s16 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 = (buf[2]>>8 )&0xff;
- 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 = (struct i2o_device *)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 = (void*)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 - LCTn", 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 = (buf[2]>>8 )&0xff;
- 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 = kmalloc(sizeof(struct adpt_device),GFP_KERNEL);
- if(pDev == NULL) {
- return -ENOMEM;
- }
- pHba->channel[bus_no].device[scsi_id] = pDev;
- memset(pDev,0,sizeof(struct adpt_device));
- } else {
- for( pDev = pHba->channel[bus_no].device[scsi_id];
- pDev->next_lun; pDev = pDev->next_lun){
- }
- pDev->next_lun = kmalloc(sizeof(struct adpt_device),GFP_KERNEL);
- if(pDev == NULL) {
- return -ENOMEM;
- }
- memset(pDev->next_lun,0,sizeof(struct adpt_device));
- 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 %sn",
- 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)
- {
- down(&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;
- up(&adpt_configuration_lock);
- return 0;
- }
- static int adpt_open(struct inode *inode, struct file *file)
- {
- int minor;
- adpt_hba* pHba;
- //TODO check for root access
- //
- minor = MINOR(inode->i_rdev);
- if (minor >= hba_count) {
- return -ENXIO;
- }
- down(&adpt_configuration_lock);
- for (pHba = hba_chain; pHba; pHba = pHba->next) {
- if (pHba->unit == minor) {
- break; /* found adapter */
- }
- }
- if (pHba == NULL) {
- up(&adpt_configuration_lock);
- return -ENXIO;
- }
- // if(pHba->in_use){
- // up(&adpt_configuration_lock);
- // return -EBUSY;
- // }
- pHba->in_use = 1;
- up(&adpt_configuration_lock);
- return 0;
- }
- static int adpt_close(struct inode *inode, struct file *file)
- {
- int minor;
- adpt_hba* pHba;
- minor = MINOR(inode->i_rdev);
- if (minor >= hba_count) {
- return -ENXIO;
- }
- down(&adpt_configuration_lock);
- for (pHba = hba_chain; pHba; pHba = pHba->next) {
- if (pHba->unit == minor) {
- break; /* found adapter */
- }
- }
- up(&adpt_configuration_lock);
- if (pHba == NULL) {
- return -ENXIO;
- }
- pHba->in_use = 0;
- return 0;
- }
- static int adpt_i2o_passthru(adpt_hba* pHba, u32* arg)
- {
- u32 msg[MAX_MESSAGE_SIZE];
- u32* reply = NULL;
- u32 size = 0;
- u32 reply_size = 0;
- u32* user_msg = (u32*)arg;
- u32* user_reply = NULL;
- ulong sg_list[pHba->sg_tablesize];
- u32 sg_offset = 0;
- u32 sg_count = 0;
- int sg_index = 0;
- u32 i = 0;
- u32 rcode = 0;
- ulong p = 0;
- 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((void*)msg, (void*)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 = kmalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
- if(reply == NULL) {
- printk(KERN_WARNING"%s: Could not allocate reply buffern",pHba->name);
- return -ENOMEM;
- }
- memset(reply,0,REPLY_FRAME_SIZE*4);
- sg_offset = (msg[0]>>4)&0xf;
- msg[2] = 0x40000000; // IOCTL context
- msg[3] = (u32)reply;
- memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize);
- if(sg_offset) {
- // TODO 64bit fix
- 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 = (ulong)kmalloc(sg_size, GFP_KERNEL|ADDR32);
- if(p == 0) {
- printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %dn",
- 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*/) {
- // TODO 64bit fix
- if (copy_from_user((void*)p,(void*)sg[i].addr_bus, sg_size)) {
- printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM usern",pHba->name,i);
- rcode = -EFAULT;
- goto cleanup;
- }
- }
- //TODO 64bit fix
- sg[i].addr_bus = (u32)virt_to_bus((void*)p);
- }
- }
- do {
- spin_lock_irqsave(&io_request_lock, flags);
- // This state stops any new commands from enterring the
- // controller while processing the ioctl
- // pHba->state |= DPTI_STATE_IOCTL;
- // We can't set this now - The scsi subsystem sets host_blocked and
- // the queue empties and stops. We need a way to restart the queue
- rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
- // pHba->state &= ~DPTI_STATE_IOCTL;
- spin_unlock_irqrestore(&io_request_lock, flags);
- } while(rcode == -ETIMEDOUT);
- if(rcode){
- goto cleanup;
- }
- if(sg_offset) {
- /* Copy back the Scatter Gather buffers back to user space */
- u32 j;
- // TODO 64bit fix
- 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;
- /* Copy in the user's I2O command */
- if (copy_from_user ((void*)msg, (void*)user_msg, size)) {
- rcode = -EFAULT;
- goto cleanup;
- }
- sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
- // TODO 64bit fix
- 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;
- // TODO 64bit fix
- if (copy_to_user((void*)sg[j].addr_bus,(void*)sg_list[j], sg_size)) {
- printk(KERN_WARNING"%s: Could not copy %lx TO user %xn",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 usern",pHba->name);
- rcode = -EFAULT;
- }
- if(copy_to_user(user_reply, reply, reply_size)) {
- printk(KERN_WARNING"%s: Could not copy reply TO usern",pHba->name);
- rcode = -EFAULT;
- }
- }
- cleanup:
- kfree (reply);
- while(sg_index) {
- if(sg_list[--sg_index]) {
- kfree((void*)(sg_list[sg_index]));
- }
- }
- return rcode;
- }
- /*
- * 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 *buffer)
- {
- sysInfo_S si;
- memset(&si, 0, sizeof(si));
- si.osType = OS_LINUX;
- si.osMajorVersion = (u8) (LINUX_VERSION_CODE >> 16);
- si.osMinorVersion = (u8) (LINUX_VERSION_CODE >> 8 & 0x0ff);
- si.osRevision = (u8) (LINUX_VERSION_CODE & 0x0ff);
- 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 usern");
- return -EFAULT;
- }
- return 0;
- }
- #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
- static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd,
- ulong arg)
- {
- int minor;
- int error = 0;
- adpt_hba* pHba;
- ulong flags;
- minor = MINOR(inode->i_rdev);
- if (minor >= DPTI_MAX_HBA){
- return -ENXIO;
- }
- down(&adpt_configuration_lock);
- for (pHba = hba_chain; pHba; pHba = pHba->next) {
- if (pHba->unit == minor) {
- break; /* found adapter */
- }
- }
- up(&adpt_configuration_lock);
- if(pHba == NULL){
- return -ENXIO;
- }
- while((volatile u32) pHba->state & DPTI_STATE_RESET ) {
- set_task_state(current,TASK_UNINTERRUPTIBLE);
- schedule_timeout(2);
- }
- switch (cmd) {
- // TODO: handle 3 cases
- case DPT_SIGNATURE:
- if (copy_to_user((char*)arg, &DPTI_sig, sizeof(DPTI_sig))) {
- return -EFAULT;
- }
- break;
- case I2OUSRCMD:
- return adpt_i2o_passthru(pHba,(u32*)arg);
- break;
- 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((void *) arg, &HbaInfo, sizeof(HbaInfo))){
- printk(KERN_WARNING"%s: Could not copy HbaInfo TO usern",pHba->name);
- return -EFAULT;
- }
- break;
- }
- case DPT_SYSINFO:
- return adpt_system_info((void*)arg);
- break;
- case DPT_BLINKLED:{
- u32 value;
- value = (u32)adpt_read_blink_led(pHba);
- if (copy_to_user((char*)arg, &value, sizeof(value))) {
- return -EFAULT;
- }
- break;
- }
- case I2ORESETCMD:
- spin_lock_irqsave(&io_request_lock, flags);
- adpt_hba_reset(pHba);
- spin_unlock_irqrestore(&io_request_lock, flags);
- break;
- case I2ORESCANCMD:
- adpt_rescan(pHba);
- break;
- case DPT_TARGET_BUSY & 0xFFFF:
- case DPT_TARGET_BUSY:
- {
- TARGET_BUSY_T busy;
- struct adpt_device* d;
- if (copy_from_user((void*)&busy, (void*)arg, sizeof(TARGET_BUSY_T))) {
- return -EFAULT;
- }
- d = adpt_find_device(pHba, busy.channel, busy.id, busy.lun);
- if(d == NULL){
- return -ENODEV;
- }
- busy.isBusy = ((d->pScsi_dev) && (0 != d->pScsi_dev->access_count)) ? 1 : 0;
- if (copy_to_user ((char*)arg, &busy, sizeof(busy))) {
- return -EFAULT;
- }
- break;
- }
- default:
- return -EINVAL;
- }
- return error;
- }
- static void adpt_isr(int irq, void *dev_id, struct pt_regs *regs)
- {
- Scsi_Cmnd* cmd;
- adpt_hba* pHba=NULL;
- u32 m;
- ulong reply;
- u32 status=0;
- u32 context;
- ulong flags = 0;
- pHba = dev_id;
- if (pHba == NULL ){
- printk(KERN_WARNING"adpt_isr: NULL dev_idn");
- return;
- }
- spin_lock_irqsave(&io_request_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 framen");
- spin_unlock_irqrestore(&io_request_lock,flags);
- return;
- }
- }
- reply = (ulong)bus_to_virt(m);
- if (readl(reply) & MSG_FAIL) {
- u32 old_m = readl(reply+28);
- ulong msg;
- u32 old_context;
- PDEBUG("%s: Failed messagen",pHba->name);
- if(old_m >= 0x100000){
- printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping framen",pHba->name,old_m);
- writel(m,pHba->reply_port);
- continue;
- }
- // Transaction context is 0 in failed reply frame
- msg = (ulong)(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
- ulong p = (ulong)(readl(reply+12));
- if( p != 0) {
- memcpy((void*)p, (void*)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 = (Scsi_Cmnd*) readl(reply+12);
- if(cmd != NULL) {
- printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%xn", pHba->name, cmd, context);
- }
- }
- adpt_i2o_post_wait_complete(context, status);
- } else { // SCSI message
- cmd = (Scsi_Cmnd*) readl(reply+12);
- if(cmd != NULL){
- if(cmd->serial_number != 0) { // If not timedout
- adpt_i2o_to_scsi(reply, cmd);
- }
- }
- }
- writel(m, pHba->reply_port);
- wmb();
- rmb();
- }
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- static s32 adpt_scsi_to_i2o(adpt_hba* pHba, Scsi_Cmnd* cmd, struct adpt_device* d)
- {
- int i;
- u32 msg[MAX_MESSAGE_SIZE];
- u32* mptr;
- u32 *lenptr;
- int direction;
- int scsidir;
- u32 len;
- u32 reqlen;
- s32 rcode;
- memset(msg, 0 , sizeof(msg));
- len = cmd->request_bufflen;
- 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 SCSI_DATA_READ:
- scsidir =0x40000000; // DATA IN (iop<--dev)
- break;
- case SCSI_DATA_WRITE:
- direction=0x04000000; // SGL OUT
- scsidir =0x80000000; // DATA OUT (iop-->dev)
- break;
- case SCSI_DATA_NONE:
- break;
- case SCSI_DATA_UNKNOWN:
- 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] = (u32)cmd; /* We want the 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 */
- reqlen = 14; // SINGLE SGE
- /* Now fill in the SGList and command */
- if(cmd->use_sg) {
- struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer;
- len = 0;
- for(i = 0 ; i < cmd->use_sg; i++) {
- *mptr++ = direction|0x10000000|sg->length;
- len+=sg->length;
- *mptr++ = virt_to_bus(sg->address);
- sg++;
- }
- /* Make this an end of list */
- mptr[-2] = direction|0xD0000000|(sg-1)->length;
- reqlen = mptr - msg;
- *lenptr = len;
-
- if(cmd->underflow && len != cmd->underflow){
- printk(KERN_WARNING"Cmd len %08X Cmd underflow %08Xn",
- len, cmd->underflow);
- }
- } else {
- *lenptr = len = cmd->request_bufflen;
- if(len == 0) {
- reqlen = 12;
- } else {
- *mptr++ = 0xD0000000|direction|cmd->request_bufflen;
- *mptr++ = virt_to_bus(cmd->request_buffer);
- }
- }
-
- /* 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_register(adpt_hba* pHba,Scsi_Host_Template * sht)
- {
- struct Scsi_Host *host = NULL;
- host = scsi_register(sht, sizeof(adpt_hba*));
- if (host == NULL) {
- printk ("%s: scsi_register returned NULLn",pHba->name);
- return -1;
- }
- (adpt_hba*)(host->hostdata[0]) = 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 hosts.h */
- host->max_id = 16;
- host->max_lun = 256;
- host->max_channel = pHba->top_scsi_channel + 1;
- host->cmd_per_lun = 256;
- host->unique_id = (uint) pHba;
- host->sg_tablesize = pHba->sg_tablesize;
- host->can_queue = pHba->post_fifo_size;
- host->select_queue_depths = adpt_select_queue_depths;
- return 0;
- }
- static s32 adpt_i2o_to_scsi(ulong reply, 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
- cmd->resid = cmd->request_bufflen - readl(reply+5);
- pHba = (adpt_hba*) cmd->host->hostdata[0];
- cmd->sense_buffer[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+5) < cmd->underflow ) {
- cmd->result = (DID_ERROR <<16);
- printk(KERN_WARNING"%s: SCSI CMD underflown",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,%d) hba status=0x%x, dev status=0x%x, cmd=0x%xn",
- pHba->name, (u32)cmd->channel, (u32)cmd->target, (u32)cmd->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 errorn",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,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%xn",
- pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->channel, (u32)cmd->target, (u32)cmd-> 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 == 0x02 /*CHECK_CONDITION*/) {
- u32 len = sizeof(cmd->sense_buffer);
- len = (len > 40) ? 40 : len;
- // Copy over the sense data
- memcpy(cmd->sense_buffer, (void*)(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,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%xn",
- pHba->name, (u32)cmd->channel, (u32)cmd->target, (u32)cmd->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,%d) tid=%d, cmd=0x%xn",
- pHba->name, (u32)cmd->channel, (u32)cmd->target, (u32)cmd-> 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;
- spin_lock_irqsave(&io_request_lock, flags);
- if ((rcode=adpt_i2o_lct_get(pHba)) < 0){
- spin_unlock_irqrestore(&io_request_lock, flags);
- return rcode;
- }
- if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){
- spin_unlock_irqrestore(&io_request_lock, flags);
- return rcode;
- }
- spin_unlock_irqrestore(&io_request_lock, flags);
- return 0;
- }
- 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;
- s16 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 devicen",pHba->name);
- continue;
- }
- bus_no = buf[0]>>16;
- scsi_id = buf[1];
- scsi_lun = (buf[2]>>8 )&0xff;
- 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 = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
- if(d==NULL)
- {
- printk(KERN_CRIT "Out of memory for I2O device data.n");
- return -ENOMEM;
- }
-
- d->controller = (void*)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);
-
- 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;
- }
- pDev = pHba->channel[bus_no].device[scsi_id];
- if( pDev == NULL){
- pDev = kmalloc(sizeof(struct adpt_device),GFP_KERNEL);
- 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 = kmalloc(sizeof(struct adpt_device),GFP_KERNEL);
- if(pDev == NULL) {
- return -ENOMEM;
- }
- }
- memset(pDev,0,sizeof(struct adpt_device));
- 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(pDev->pScsi_dev->online == FALSE) {
- printk(KERN_WARNING"%s: Setting device (%d,%d,%d) back onlinen",
- pHba->name,bus_no,scsi_id,scsi_lun);
- if (pDev->pScsi_dev) {
- pDev->pScsi_dev->online = TRUE;
- }
- }
- 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,%d) offlinen",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
- if (pDev->pScsi_dev) {
- pDev->pScsi_dev->online = FALSE;
- if (pDev->pScsi_dev->access_count) {
- // A drive that was mounted is no longer there... bad!
- SCSI_LOG_ERROR_RECOVERY(1, printk ("%s:Rescan: Previously "
- "mounted drive not found!n",pHba->name));
- printk(KERN_WARNING"%s:Mounted drive taken offlinen",pHba->name);
- }
- }
- }
- }
- return 0;
- }
- static void adpt_fail_posted_scbs(adpt_hba* pHba)
- {
- Scsi_Cmnd* cmd = NULL;
- Scsi_Device* d = NULL;
- if( pHba->host->host_queue != NULL ) {
- d = pHba->host->host_queue;
- if(!d){
- return;
- }
- while( d->next != NULL ){
- for(cmd = d->device_queue; cmd ; cmd = cmd->next){
- if(cmd->serial_number == 0){
- continue;
- }
- cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1);
- cmd->scsi_done(cmd);
- }
- d = d->next;
- }
- }
- }
- /*============================================================================
- * 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 faultn", 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 *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;
- }
- }
- msg = (u32*)(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;
- u32 *msg = NULL;
- int i;
- ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
- u32* ptr;
- u32 outbound_frame; // This had to be a 32 bit address
- 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 framen",pHba->name);
- return -ETIMEDOUT;
- }
- } while(m == EMPTY_QUEUE);
- msg=(u32 *)(pHba->msg_addr_virt+m);
- status = kmalloc(4,GFP_KERNEL|ADDR32);
- if (status==NULL) {
- 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(virt_to_bus(status), &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 Initializingn",pHba->name);
- kfree((void*)status);
- return -ETIMEDOUT;
- }
- } while (1);
- // If the command was successful, fill the fifo with our reply
- // message packets
- if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
- kfree((void*)status);
- return -2;
- }
- kfree((void*)status);
- if(pHba->reply_pool != NULL){
- kfree(pHba->reply_pool);
- }
- pHba->reply_pool = (u32*)kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
- if(!pHba->reply_pool){
- printk(KERN_ERR"%s: Could not allocate reply pooln",pHba->name);
- return -1;
- }
- memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4);
- ptr = pHba->reply_pool;
- for(i = 0; i < pHba->reply_fifo_size; i++) {
- outbound_frame = (u32)virt_to_bus(ptr);
- writel(outbound_frame, pHba->reply_port);
- wmb();
- ptr += REPLY_FRAME_SIZE;
- }
- 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 *msg;
- u8 *status_block=NULL;
- ulong status_block_bus;
- if(pHba->status_block == NULL) {
- pHba->status_block = (i2o_status_block*)
- kmalloc(sizeof(i2o_status_block),GFP_KERNEL|ADDR32);
- 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);
- status_block_bus = virt_to_bus(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;
- }
- } while(m==EMPTY_QUEUE);
-
- msg=(u32*)(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(((u32)status_block_bus)&0xffffffff, &msg[6]);
- writel(0, &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();
- }
- // 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
- pHba->sg_tablesize = (pHba->status_block->inbound_frame_size * 4 -40)/ 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("INITn");
- break;
- case 0x02:
- printk("RESETn");
- break;
- case 0x04:
- printk("HOLDn");
- break;
- case 0x05:
- printk("READYn");
- break;
- case 0x08:
- printk("OPERATIONALn");
- break;
- case 0x10:
- printk("FAILEDn");
- break;
- case 0x11:
- printk("FAULTEDn");
- 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 = kmalloc(pHba->lct_size, GFP_KERNEL|ADDR32);
- 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] = virt_to_bus(pHba->lct);
- 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;
- kfree(pHba->lct);
- 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 = pHba->base_addr_virt + buf[0];
- 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 = NULL;
- int count = 0;
- sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs
- (hba_count) * sizeof(struct i2o_sys_tbl_entry);
- if(sys_tbl)
- kfree(sys_tbl);
- sys_tbl = kmalloc(sys_tbl_len, GFP_KERNEL|ADDR32);
- 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) {
- // 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;
- sys_tbl->iops[count].inbound_low = (u32)virt_to_bus((void*)pHba->post_port);
- sys_tbl->iops[count].inbound_high = (u32)((u64)virt_to_bus((void*)pHba->post_port)>>32);
- count++;
- }
- #ifdef DEBUG
- {
- u32 *table = (u32*)sys_tbl;
- printk(KERN_DEBUG"sys_tbl_len=%d in 32bit wordsn",(sys_tbl_len >>2));
- for(count = 0; count < (sys_tbl_len >>2); count++) {
- printk(KERN_INFO "sys_tbl[%d] = %0#10xn",
- 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: %-12.12sn", buf);
- }
- #ifdef DEBUG
- printk(KERN_INFO "tClass: %.21sn", adpt_i2o_get_class_name(d->lct_data.class_id));
- printk(KERN_INFO "tSubclass: 0x%04Xn", 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=kmalloc(size, GFP_KERNEL|ADDR32);
- 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]= virt_to_bus(pHba->hrt); /* 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) {
- size = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
- kfree(pHba->hrt);
- 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 resblk[8+buflen]; /* 8 bytes for header */
- int size;
- if (field == -1) /* whole group */
- opblk[4] = -1;
- size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid,
- opblk, sizeof(opblk), resblk, sizeof(resblk));
-
- memcpy(buf, resblk+8, buflen); /* cut off header */
- 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, int oplen, void *resblk, int reslen)
- {
- u32 msg[9];
- u32 *res = (u32 *)resblk;
- 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] = virt_to_bus(opblk);
- msg[7] = 0xD0000000 | reslen; /* ResultBlock */
- msg[8] = virt_to_bus(resblk);
- if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
- 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%04xn",
- 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] = virt_to_phys(sys_tbl);
- 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 Scsi_Host_Template driver_template = DPT_I2O;
- #include "scsi_module.c"
- EXPORT_NO_SYMBOLS;
- MODULE_LICENSE("GPL");