1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /***************************************************************************
6 copyright : (C) 2000 by Adaptec
8 July 30, 2001 First version being submitted
9 for inclusion in the kernel. V2.4
11 See Documentation/scsi/dpti.rst for history, notes, license info
13 ***************************************************************************/
15 /***************************************************************************
18 ***************************************************************************/
19 /***************************************************************************
20 * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp>
21 - Support 2.6 kernel and DMA-mapping
22 - ioctl fix for raid tools
23 - use schedule_timeout in long long loop
24 **************************************************************************/
27 /*#define UARTDELAY 1 */
29 #include <linux/module.h>
30 #include <linux/pgtable.h>
32 MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
33 MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
35 ////////////////////////////////////////////////////////////////
37 #include <linux/ioctl.h> /* For SCSI-Passthrough */
38 #include <linux/uaccess.h>
40 #include <linux/stat.h>
41 #include <linux/slab.h> /* for kmalloc() */
42 #include <linux/pci.h> /* for PCI support */
43 #include <linux/proc_fs.h>
44 #include <linux/blkdev.h>
45 #include <linux/delay.h> /* for udelay */
46 #include <linux/interrupt.h>
47 #include <linux/kernel.h> /* for printk */
48 #include <linux/sched.h>
49 #include <linux/reboot.h>
50 #include <linux/spinlock.h>
51 #include <linux/dma-mapping.h>
53 #include <linux/timer.h>
54 #include <linux/string.h>
55 #include <linux/ioport.h>
56 #include <linux/mutex.h>
58 #include <asm/processor.h> /* for boot_cpu_data */
59 #include <asm/io.h> /* for virt_to_bus, etc. */
61 #include <scsi/scsi.h>
62 #include <scsi/scsi_cmnd.h>
63 #include <scsi/scsi_device.h>
64 #include <scsi/scsi_host.h>
65 #include <scsi/scsi_tcq.h>
67 #include "dpt/dptsig.h"
70 /*============================================================================
71 * Create a binary signature - this is read by dptsig
72 * Needed for our management apps
73 *============================================================================
75 static DEFINE_MUTEX(adpt_mutex);
76 static dpt_sig_S DPTI_sig = {
77 {'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION,
79 PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM,
80 #elif defined(__ia64__)
81 PROC_INTEL, PROC_IA64,
82 #elif defined(__sparc__)
83 PROC_ULTRASPARC, PROC_ULTRASPARC,
84 #elif defined(__alpha__)
85 PROC_ALPHA, PROC_ALPHA,
89 FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL,
90 ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION,
91 DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver"
97 /*============================================================================
99 *============================================================================
102 static DEFINE_MUTEX(adpt_configuration_lock);
104 static struct i2o_sys_tbl *sys_tbl;
105 static dma_addr_t sys_tbl_pa;
106 static int sys_tbl_ind;
107 static int sys_tbl_len;
109 static adpt_hba* hba_chain = NULL;
110 static int hba_count = 0;
112 static struct class *adpt_sysfs_class;
114 static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long);
116 static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long);
119 static const struct file_operations adpt_fops = {
120 .unlocked_ioctl = adpt_unlocked_ioctl,
122 .release = adpt_close,
124 .compat_ioctl = compat_adpt_ioctl,
126 .llseek = noop_llseek,
129 /* Structures and definitions for synchronous message posting.
130 * See adpt_i2o_post_wait() for description
132 struct adpt_i2o_post_wait_data
136 adpt_wait_queue_head_t *wq;
137 struct adpt_i2o_post_wait_data *next;
140 static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL;
141 static u32 adpt_post_wait_id = 0;
142 static DEFINE_SPINLOCK(adpt_post_wait_lock);
145 /*============================================================================
147 *============================================================================
150 static inline int dpt_dma64(adpt_hba *pHba)
152 return (sizeof(dma_addr_t) > 4 && (pHba)->dma64);
155 static inline u32 dma_high(dma_addr_t addr)
157 return upper_32_bits(addr);
160 static inline u32 dma_low(dma_addr_t addr)
165 static u8 adpt_read_blink_led(adpt_hba* host)
167 if (host->FwDebugBLEDflag_P) {
168 if( readb(host->FwDebugBLEDflag_P) == 0xbc ){
169 return readb(host->FwDebugBLEDvalue_P);
175 /*============================================================================
176 * Scsi host template interface functions
177 *============================================================================
181 static struct pci_device_id dptids[] = {
182 { PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
183 { PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
188 MODULE_DEVICE_TABLE(pci,dptids);
190 static int adpt_detect(struct scsi_host_template* sht)
192 struct pci_dev *pDev = NULL;
196 PINFO("Detecting Adaptec I2O RAID controllers...\n");
198 /* search for all Adatpec I2O RAID cards */
199 while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) {
200 if(pDev->device == PCI_DPT_DEVICE_ID ||
201 pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){
202 if(adpt_install_hba(sht, pDev) ){
203 PERROR("Could not Init an I2O RAID device\n");
204 PERROR("Will not try to detect others.\n");
211 /* In INIT state, Activate IOPs */
212 for (pHba = hba_chain; pHba; pHba = next) {
214 // Activate does get status , init outbound, and get hrt
215 if (adpt_i2o_activate_hba(pHba) < 0) {
216 adpt_i2o_delete_hba(pHba);
221 /* Active IOPs in HOLD state */
224 if (hba_chain == NULL)
228 * If build_sys_table fails, we kill everything and bail
229 * as we can't init the IOPs w/o a system table
231 if (adpt_i2o_build_sys_table() < 0) {
232 adpt_i2o_sys_shutdown();
236 PDEBUG("HBA's in HOLD state\n");
238 /* If IOP don't get online, we need to rebuild the System table */
239 for (pHba = hba_chain; pHba; pHba = pHba->next) {
240 if (adpt_i2o_online_hba(pHba) < 0) {
241 adpt_i2o_delete_hba(pHba);
242 goto rebuild_sys_tab;
246 /* Active IOPs now in OPERATIONAL state */
247 PDEBUG("HBA's in OPERATIONAL state\n");
249 printk("dpti: If you have a lot of devices this could take a few minutes.\n");
250 for (pHba = hba_chain; pHba; pHba = next) {
252 printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
253 if (adpt_i2o_lct_get(pHba) < 0){
254 adpt_i2o_delete_hba(pHba);
258 if (adpt_i2o_parse_lct(pHba) < 0){
259 adpt_i2o_delete_hba(pHba);
265 adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o");
266 if (IS_ERR(adpt_sysfs_class)) {
267 printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n");
268 adpt_sysfs_class = NULL;
271 for (pHba = hba_chain; pHba; pHba = next) {
273 if (adpt_scsi_host_alloc(pHba, sht) < 0){
274 adpt_i2o_delete_hba(pHba);
277 pHba->initialized = TRUE;
278 pHba->state &= ~DPTI_STATE_RESET;
279 if (adpt_sysfs_class) {
280 struct device *dev = device_create(adpt_sysfs_class,
281 NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL,
282 "dpti%d", pHba->unit);
284 printk(KERN_WARNING"dpti%d: unable to "
285 "create device in dpt_i2o class\n",
291 // Register our control device node
292 // nodes will need to be created in /dev to access this
293 // the nodes can not be created from within the driver
294 if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) {
295 adpt_i2o_sys_shutdown();
302 static void adpt_release(adpt_hba *pHba)
304 struct Scsi_Host *shost = pHba->host;
306 scsi_remove_host(shost);
307 // adpt_i2o_quiesce_hba(pHba);
308 adpt_i2o_delete_hba(pHba);
309 scsi_host_put(shost);
313 static void adpt_inquiry(adpt_hba* pHba)
327 memset(msg, 0, sizeof(msg));
328 buf = dma_alloc_coherent(&pHba->pDev->dev, 80, &addr, GFP_KERNEL);
330 printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name);
333 memset((void*)buf, 0, 36);
336 direction = 0x00000000;
337 scsidir =0x40000000; // DATA IN (iop<--dev)
340 reqlen = 17; // SINGLE SGE, 64 bit
342 reqlen = 14; // SINGLE SGE, 32 bit
343 /* Stick the headers on */
344 msg[0] = reqlen<<16 | SGL_OFFSET_12;
345 msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID);
348 // Adaptec/DPT Private stuff
349 msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16;
350 msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/;
351 /* Direction, disconnect ok | sense data | simple queue , CDBLen */
352 // I2O_SCB_FLAG_ENABLE_DISCONNECT |
353 // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
354 // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
355 msg[6] = scsidir|0x20a00000| 6 /* cmd len*/;
359 memset(scb, 0, sizeof(scb));
360 // Write SCSI command into the message - always 16 byte block
367 // Don't care about the rest of scb
369 memcpy(mptr, scb, sizeof(scb));
371 lenptr=mptr++; /* Remember me - fill in when we know */
373 /* Now fill in the SGList and command */
375 if (dpt_dma64(pHba)) {
376 *mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
377 *mptr++ = 1 << PAGE_SHIFT;
378 *mptr++ = 0xD0000000|direction|len;
379 *mptr++ = dma_low(addr);
380 *mptr++ = dma_high(addr);
382 *mptr++ = 0xD0000000|direction|len;
386 // Send it on it's way
387 rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120);
389 sprintf(pHba->detail, "Adaptec I2O RAID");
390 printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode);
391 if (rcode != -ETIME && rcode != -EINTR)
392 dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
394 memset(pHba->detail, 0, sizeof(pHba->detail));
395 memcpy(&(pHba->detail), "Vendor: Adaptec ", 16);
396 memcpy(&(pHba->detail[16]), " Model: ", 8);
397 memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16);
398 memcpy(&(pHba->detail[40]), " FW: ", 4);
399 memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4);
400 pHba->detail[48] = '\0'; /* precautionary */
401 dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
403 adpt_i2o_status_get(pHba);
408 static int adpt_slave_configure(struct scsi_device * device)
410 struct Scsi_Host *host = device->host;
413 pHba = (adpt_hba *) host->hostdata[0];
415 if (host->can_queue && device->tagged_supported) {
416 scsi_change_queue_depth(device,
417 host->can_queue - 1);
422 static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
424 adpt_hba* pHba = NULL;
425 struct adpt_device* pDev = NULL; /* dpt per device information */
427 cmd->scsi_done = done;
429 * SCSI REQUEST_SENSE commands will be executed automatically by the
430 * Host Adapter for any errors, so they should not be executed
431 * explicitly unless the Sense Data is zero indicating that no error
435 if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) {
436 cmd->result = (DID_OK << 16);
441 pHba = (adpt_hba*)cmd->device->host->hostdata[0];
447 if ((pHba->state) & DPTI_STATE_RESET)
448 return SCSI_MLQUEUE_HOST_BUSY;
450 // TODO if the cmd->device if offline then I may need to issue a bus rescan
451 // followed by a get_lct to see if the device is there anymore
452 if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) {
454 * First command request for this device. Set up a pointer
455 * to the device structure. This should be a TEST_UNIT_READY
456 * command from scan_scsis_single.
458 if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) {
459 // TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response
460 // with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
461 cmd->result = (DID_NO_CONNECT << 16);
465 cmd->device->hostdata = pDev;
467 pDev->pScsi_dev = cmd->device;
470 * If we are being called from when the device is being reset,
471 * delay processing of the command until later.
473 if (pDev->state & DPTI_DEV_RESET ) {
476 return adpt_scsi_to_i2o(pHba, cmd, pDev);
479 static DEF_SCSI_QCMD(adpt_queue)
481 static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev,
482 sector_t capacity, int geom[])
488 // *** First lets set the default geometry ****
490 // If the capacity is less than ox2000
491 if (capacity < 0x2000 ) { // floppy
495 // else if between 0x2000 and 0x20000
496 else if (capacity < 0x20000) {
500 // else if between 0x20000 and 0x40000
501 else if (capacity < 0x40000) {
505 // else if between 0x4000 and 0x80000
506 else if (capacity < 0x80000) {
510 // else if greater than 0x80000
515 cylinders = sector_div(capacity, heads * sectors);
517 // Special case if CDROM
518 if(sdev->type == 5) { // CDROM
528 PDEBUG("adpt_bios_param: exit\n");
533 static const char *adpt_info(struct Scsi_Host *host)
537 pHba = (adpt_hba *) host->hostdata[0];
538 return (char *) (pHba->detail);
541 static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host)
543 struct adpt_device* d;
549 // Find HBA (host bus adapter) we are looking for
550 mutex_lock(&adpt_configuration_lock);
551 for (pHba = hba_chain; pHba; pHba = pHba->next) {
552 if (pHba->host == host) {
553 break; /* found adapter */
556 mutex_unlock(&adpt_configuration_lock);
562 seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION);
563 seq_printf(m, "%s\n", pHba->detail);
564 seq_printf(m, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n",
565 pHba->host->host_no, pHba->name, host->irq);
566 seq_printf(m, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n",
567 host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize);
569 seq_puts(m, "Devices:\n");
570 for(chan = 0; chan < MAX_CHANNEL; chan++) {
571 for(id = 0; id < MAX_ID; id++) {
572 d = pHba->channel[chan].device[id];
574 seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor);
575 seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev);
577 unit = d->pI2o_dev->lct_data.tid;
578 seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu) (%s)\n\n",
579 unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun,
580 scsi_device_online(d->pScsi_dev)? "online":"offline");
589 * Turn a pointer to ioctl reply data into an u32 'context'
591 static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply)
593 #if BITS_PER_LONG == 32
594 return (u32)(unsigned long)reply;
599 spin_lock_irqsave(pHba->host->host_lock, flags);
600 nr = ARRAY_SIZE(pHba->ioctl_reply_context);
601 for (i = 0; i < nr; i++) {
602 if (pHba->ioctl_reply_context[i] == NULL) {
603 pHba->ioctl_reply_context[i] = reply;
607 spin_unlock_irqrestore(pHba->host->host_lock, flags);
609 printk(KERN_WARNING"%s: Too many outstanding "
610 "ioctl commands\n", pHba->name);
619 * Go from an u32 'context' to a pointer to ioctl reply data.
621 static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context)
623 #if BITS_PER_LONG == 32
624 return (void *)(unsigned long)context;
626 void *p = pHba->ioctl_reply_context[context];
627 pHba->ioctl_reply_context[context] = NULL;
633 /*===========================================================================
634 * Error Handling routines
635 *===========================================================================
638 static int adpt_abort(struct scsi_cmnd * cmd)
640 adpt_hba* pHba = NULL; /* host bus adapter structure */
641 struct adpt_device* dptdevice; /* dpt per device information */
645 pHba = (adpt_hba*) cmd->device->host->hostdata[0];
646 printk(KERN_INFO"%s: Trying to Abort\n",pHba->name);
647 if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
648 printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name);
652 memset(msg, 0, sizeof(msg));
653 msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
654 msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid;
657 /* Add 1 to avoid firmware treating it as invalid command */
658 msg[4] = cmd->request->tag + 1;
660 spin_lock_irq(pHba->host->host_lock);
661 rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
663 spin_unlock_irq(pHba->host->host_lock);
665 if(rcode == -EOPNOTSUPP ){
666 printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
669 printk(KERN_INFO"%s: Abort failed.\n",pHba->name);
672 printk(KERN_INFO"%s: Abort complete.\n",pHba->name);
677 #define I2O_DEVICE_RESET 0x27
678 // This is the same for BLK and SCSI devices
679 // NOTE this is wrong in the i2o.h definitions
680 // This is not currently supported by our adapter but we issue it anyway
681 static int adpt_device_reset(struct scsi_cmnd* cmd)
687 struct adpt_device* d = cmd->device->hostdata;
689 pHba = (void*) cmd->device->host->hostdata[0];
690 printk(KERN_INFO"%s: Trying to reset device\n",pHba->name);
692 printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name);
695 memset(msg, 0, sizeof(msg));
696 msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
697 msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid);
702 spin_lock_irq(pHba->host->host_lock);
703 old_state = d->state;
704 d->state |= DPTI_DEV_RESET;
705 rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
706 d->state = old_state;
708 spin_unlock_irq(pHba->host->host_lock);
710 if(rcode == -EOPNOTSUPP ){
711 printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
714 printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
717 printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
723 #define I2O_HBA_BUS_RESET 0x87
724 // This version of bus reset is called by the eh_error handler
725 static int adpt_bus_reset(struct scsi_cmnd* cmd)
731 pHba = (adpt_hba*)cmd->device->host->hostdata[0];
732 memset(msg, 0, sizeof(msg));
733 printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid );
734 msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
735 msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
739 spin_lock_irq(pHba->host->host_lock);
740 rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
742 spin_unlock_irq(pHba->host->host_lock);
744 printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
747 printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name);
752 // This version of reset is called by the eh_error_handler
753 static int __adpt_reset(struct scsi_cmnd* cmd)
759 pHba = (adpt_hba*)cmd->device->host->hostdata[0];
760 strncpy(name, pHba->name, sizeof(name));
761 printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n", name, cmd->device->channel, pHba->channel[cmd->device->channel].tid);
762 rcode = adpt_hba_reset(pHba);
764 printk(KERN_WARNING"%s: HBA reset complete\n", name);
767 printk(KERN_WARNING"%s: HBA reset failed (%x)\n", name, rcode);
772 static int adpt_reset(struct scsi_cmnd* cmd)
776 spin_lock_irq(cmd->device->host->host_lock);
777 rc = __adpt_reset(cmd);
778 spin_unlock_irq(cmd->device->host->host_lock);
783 // This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset
784 static int adpt_hba_reset(adpt_hba* pHba)
788 pHba->state |= DPTI_STATE_RESET;
790 // Activate does get status , init outbound, and get hrt
791 if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) {
792 printk(KERN_ERR "%s: Could not activate\n", pHba->name);
793 adpt_i2o_delete_hba(pHba);
797 if ((rcode=adpt_i2o_build_sys_table()) < 0) {
798 adpt_i2o_delete_hba(pHba);
801 PDEBUG("%s: in HOLD state\n",pHba->name);
803 if ((rcode=adpt_i2o_online_hba(pHba)) < 0) {
804 adpt_i2o_delete_hba(pHba);
807 PDEBUG("%s: in OPERATIONAL state\n",pHba->name);
809 if ((rcode=adpt_i2o_lct_get(pHba)) < 0){
810 adpt_i2o_delete_hba(pHba);
814 if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){
815 adpt_i2o_delete_hba(pHba);
818 pHba->state &= ~DPTI_STATE_RESET;
820 scsi_host_complete_all_commands(pHba->host, DID_RESET);
821 return 0; /* return success */
824 /*===========================================================================
826 *===========================================================================
830 static void adpt_i2o_sys_shutdown(void)
832 adpt_hba *pHba, *pNext;
833 struct adpt_i2o_post_wait_data *p1, *old;
835 printk(KERN_INFO "Shutting down Adaptec I2O controllers.\n");
836 printk(KERN_INFO " This could take a few minutes if there are many devices attached\n");
837 /* Delete all IOPs from the controller chain */
838 /* They should have already been released by the
841 for (pHba = hba_chain; pHba; pHba = pNext) {
843 adpt_i2o_delete_hba(pHba);
846 /* Remove any timedout entries from the wait queue. */
847 // spin_lock_irqsave(&adpt_post_wait_lock, flags);
848 /* Nothing should be outstanding at this point so just
851 for(p1 = adpt_post_wait_queue; p1;) {
856 // spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
857 adpt_post_wait_queue = NULL;
859 printk(KERN_INFO "Adaptec I2O controllers down.\n");
862 static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev)
865 adpt_hba* pHba = NULL;
867 ulong base_addr0_phys = 0;
868 ulong base_addr1_phys = 0;
869 u32 hba_map0_area_size = 0;
870 u32 hba_map1_area_size = 0;
871 void __iomem *base_addr_virt = NULL;
872 void __iomem *msg_addr_virt = NULL;
875 int raptorFlag = FALSE;
877 if(pci_enable_device(pDev)) {
881 if (pci_request_regions(pDev, "dpt_i2o")) {
882 PERROR("dpti: adpt_config_hba: pci request region failed\n");
886 pci_set_master(pDev);
889 * See if we should enable dma64 mode.
891 if (sizeof(dma_addr_t) > 4 &&
892 dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32) &&
893 dma_set_mask(&pDev->dev, DMA_BIT_MASK(64)) == 0)
896 if (!dma64 && dma_set_mask(&pDev->dev, DMA_BIT_MASK(32)) != 0)
899 /* adapter only supports message blocks below 4GB */
900 dma_set_coherent_mask(&pDev->dev, DMA_BIT_MASK(32));
902 base_addr0_phys = pci_resource_start(pDev,0);
903 hba_map0_area_size = pci_resource_len(pDev,0);
905 // Check if standard PCI card or single BAR Raptor
906 if(pDev->device == PCI_DPT_DEVICE_ID){
907 if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){
908 // Raptor card with this device id needs 4M
909 hba_map0_area_size = 0x400000;
910 } else { // Not Raptor - it is a PCI card
911 if(hba_map0_area_size > 0x100000 ){
912 hba_map0_area_size = 0x100000;
915 } else {// Raptor split BAR config
916 // Use BAR1 in this configuration
917 base_addr1_phys = pci_resource_start(pDev,1);
918 hba_map1_area_size = pci_resource_len(pDev,1);
922 #if BITS_PER_LONG == 64
924 * The original Adaptec 64 bit driver has this comment here:
925 * "x86_64 machines need more optimal mappings"
927 * I assume some HBAs report ridiculously large mappings
928 * and we need to limit them on platforms with IOMMUs.
930 if (raptorFlag == TRUE) {
931 if (hba_map0_area_size > 128)
932 hba_map0_area_size = 128;
933 if (hba_map1_area_size > 524288)
934 hba_map1_area_size = 524288;
936 if (hba_map0_area_size > 524288)
937 hba_map0_area_size = 524288;
941 base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
942 if (!base_addr_virt) {
943 pci_release_regions(pDev);
944 PERROR("dpti: adpt_config_hba: io remap failed\n");
948 if(raptorFlag == TRUE) {
949 msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size );
950 if (!msg_addr_virt) {
951 PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
952 iounmap(base_addr_virt);
953 pci_release_regions(pDev);
957 msg_addr_virt = base_addr_virt;
960 // Allocate and zero the data structure
961 pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL);
963 if (msg_addr_virt != base_addr_virt)
964 iounmap(msg_addr_virt);
965 iounmap(base_addr_virt);
966 pci_release_regions(pDev);
970 mutex_lock(&adpt_configuration_lock);
972 if(hba_chain != NULL){
973 for(p = hba_chain; p->next; p = p->next);
979 pHba->unit = hba_count;
980 sprintf(pHba->name, "dpti%d", hba_count);
983 mutex_unlock(&adpt_configuration_lock);
986 pHba->base_addr_phys = base_addr0_phys;
988 // Set up the Virtual Base Address of the I2O Device
989 pHba->base_addr_virt = base_addr_virt;
990 pHba->msg_addr_virt = msg_addr_virt;
991 pHba->irq_mask = base_addr_virt+0x30;
992 pHba->post_port = base_addr_virt+0x40;
993 pHba->reply_port = base_addr_virt+0x44;
998 pHba->status_block = NULL;
999 pHba->post_count = 0;
1000 pHba->state = DPTI_STATE_RESET;
1002 pHba->devices = NULL;
1003 pHba->dma64 = dma64;
1005 // Initializing the spinlocks
1006 spin_lock_init(&pHba->state_lock);
1007 spin_lock_init(&adpt_post_wait_lock);
1009 if(raptorFlag == 0){
1010 printk(KERN_INFO "Adaptec I2O RAID controller"
1011 " %d at %p size=%x irq=%d%s\n",
1012 hba_count-1, base_addr_virt,
1013 hba_map0_area_size, pDev->irq,
1014 dma64 ? " (64-bit DMA)" : "");
1016 printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n",
1017 hba_count-1, pDev->irq,
1018 dma64 ? " (64-bit DMA)" : "");
1019 printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
1020 printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
1023 if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) {
1024 printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq);
1025 adpt_i2o_delete_hba(pHba);
1033 static void adpt_i2o_delete_hba(adpt_hba* pHba)
1037 struct i2o_device* d;
1038 struct i2o_device* next;
1041 struct adpt_device* pDev;
1042 struct adpt_device* pNext;
1045 mutex_lock(&adpt_configuration_lock);
1047 free_irq(pHba->host->irq, pHba);
1050 for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){
1053 p2->next = p1->next;
1055 hba_chain = p1->next;
1062 mutex_unlock(&adpt_configuration_lock);
1064 iounmap(pHba->base_addr_virt);
1065 pci_release_regions(pHba->pDev);
1066 if(pHba->msg_addr_virt != pHba->base_addr_virt){
1067 iounmap(pHba->msg_addr_virt);
1069 if(pHba->FwDebugBuffer_P)
1070 iounmap(pHba->FwDebugBuffer_P);
1072 dma_free_coherent(&pHba->pDev->dev,
1073 pHba->hrt->num_entries * pHba->hrt->entry_len << 2,
1074 pHba->hrt, pHba->hrt_pa);
1077 dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
1078 pHba->lct, pHba->lct_pa);
1080 if(pHba->status_block) {
1081 dma_free_coherent(&pHba->pDev->dev, sizeof(i2o_status_block),
1082 pHba->status_block, pHba->status_block_pa);
1084 if(pHba->reply_pool) {
1085 dma_free_coherent(&pHba->pDev->dev,
1086 pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
1087 pHba->reply_pool, pHba->reply_pool_pa);
1090 for(d = pHba->devices; d ; d = next){
1094 for(i = 0 ; i < pHba->top_scsi_channel ; i++){
1095 for(j = 0; j < MAX_ID; j++){
1096 if(pHba->channel[i].device[j] != NULL){
1097 for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){
1098 pNext = pDev->next_lun;
1104 pci_dev_put(pHba->pDev);
1105 if (adpt_sysfs_class)
1106 device_destroy(adpt_sysfs_class,
1107 MKDEV(DPTI_I2O_MAJOR, pHba->unit));
1111 unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
1112 if (adpt_sysfs_class) {
1113 class_destroy(adpt_sysfs_class);
1114 adpt_sysfs_class = NULL;
1119 static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun)
1121 struct adpt_device* d;
1123 if (chan >= MAX_CHANNEL)
1126 d = pHba->channel[chan].device[id];
1127 if(!d || d->tid == 0) {
1131 /* If it is the only lun at that address then this should match*/
1132 if(d->scsi_lun == lun){
1136 /* else we need to look through all the luns */
1137 for(d=d->next_lun ; d ; d = d->next_lun){
1138 if(d->scsi_lun == lun){
1146 static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
1148 // I used my own version of the WAIT_QUEUE_HEAD
1149 // to handle some version differences
1150 // When embedded in the kernel this could go back to the vanilla one
1151 ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post);
1154 struct adpt_i2o_post_wait_data *p1, *p2;
1155 struct adpt_i2o_post_wait_data *wait_data =
1156 kmalloc(sizeof(struct adpt_i2o_post_wait_data), GFP_ATOMIC);
1157 DECLARE_WAITQUEUE(wait, current);
1163 * The spin locking is needed to keep anyone from playing
1164 * with the queue pointers and id while we do the same
1166 spin_lock_irqsave(&adpt_post_wait_lock, flags);
1167 // TODO we need a MORE unique way of getting ids
1168 // to support async LCT get
1169 wait_data->next = adpt_post_wait_queue;
1170 adpt_post_wait_queue = wait_data;
1171 adpt_post_wait_id++;
1172 adpt_post_wait_id &= 0x7fff;
1173 wait_data->id = adpt_post_wait_id;
1174 spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1176 wait_data->wq = &adpt_wq_i2o_post;
1177 wait_data->status = -ETIMEDOUT;
1179 add_wait_queue(&adpt_wq_i2o_post, &wait);
1181 msg[2] |= 0x80000000 | ((u32)wait_data->id);
1183 if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
1184 set_current_state(TASK_INTERRUPTIBLE);
1186 spin_unlock_irq(pHba->host->host_lock);
1190 timeout = schedule_timeout(timeout);
1192 // I/O issued, but cannot get result in
1193 // specified time. Freeing resorces is
1199 spin_lock_irq(pHba->host->host_lock);
1201 remove_wait_queue(&adpt_wq_i2o_post, &wait);
1203 if(status == -ETIMEDOUT){
1204 printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
1205 // We will have to free the wait_data memory during shutdown
1209 /* Remove the entry from the queue. */
1211 spin_lock_irqsave(&adpt_post_wait_lock, flags);
1212 for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) {
1213 if(p1 == wait_data) {
1214 if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) {
1215 status = -EOPNOTSUPP;
1218 p2->next = p1->next;
1220 adpt_post_wait_queue = p1->next;
1225 spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
1233 static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len)
1236 u32 m = EMPTY_QUEUE;
1238 ulong timeout = jiffies + 30*HZ;
1241 m = readl(pHba->post_port);
1242 if (m != EMPTY_QUEUE) {
1245 if(time_after(jiffies,timeout)){
1246 printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit);
1249 schedule_timeout_uninterruptible(1);
1250 } while(m == EMPTY_QUEUE);
1252 msg = pHba->msg_addr_virt + m;
1253 memcpy_toio(msg, data, len);
1257 writel(m, pHba->post_port);
1264 static void adpt_i2o_post_wait_complete(u32 context, int status)
1266 struct adpt_i2o_post_wait_data *p1 = NULL;
1268 * We need to search through the adpt_post_wait
1269 * queue to see if the given message is still
1270 * outstanding. If not, it means that the IOP
1271 * took longer to respond to the message than we
1272 * had allowed and timer has already expired.
1273 * Not much we can do about that except log
1274 * it for debug purposes, increase timeout, and recompile
1276 * Lock needed to keep anyone from moving queue pointers
1277 * around while we're looking through them.
1282 spin_lock(&adpt_post_wait_lock);
1283 for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1284 if(p1->id == context) {
1285 p1->status = status;
1286 spin_unlock(&adpt_post_wait_lock);
1287 wake_up_interruptible(p1->wq);
1291 spin_unlock(&adpt_post_wait_lock);
1292 // If this happens we lose commands that probably really completed
1293 printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context);
1294 printk(KERN_DEBUG" Tasks in wait queue:\n");
1295 for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
1296 printk(KERN_DEBUG" %d\n",p1->id);
1301 static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
1306 u32 m = EMPTY_QUEUE ;
1307 ulong timeout = jiffies + (TMOUT_IOPRESET*HZ);
1309 if(pHba->initialized == FALSE) { // First time reset should be quick
1310 timeout = jiffies + (25*HZ);
1312 adpt_i2o_quiesce_hba(pHba);
1317 m = readl(pHba->post_port);
1318 if (m != EMPTY_QUEUE) {
1321 if(time_after(jiffies,timeout)){
1322 printk(KERN_WARNING"Timeout waiting for message!\n");
1325 schedule_timeout_uninterruptible(1);
1326 } while (m == EMPTY_QUEUE);
1328 status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
1329 if(status == NULL) {
1330 adpt_send_nop(pHba, m);
1331 printk(KERN_ERR"IOP reset failed - no free memory.\n");
1335 msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
1336 msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
1341 msg[6]=dma_low(addr);
1342 msg[7]=dma_high(addr);
1344 memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg));
1346 writel(m, pHba->post_port);
1349 while(*status == 0){
1350 if(time_after(jiffies,timeout)){
1351 printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name);
1352 /* We lose 4 bytes of "status" here, but we cannot
1353 free these because controller may awake and corrupt
1354 those bytes at any time */
1355 /* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
1359 schedule_timeout_uninterruptible(1);
1362 if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) {
1363 PDEBUG("%s: Reset in progress...\n", pHba->name);
1364 // Here we wait for message frame to become available
1365 // indicated that reset has finished
1368 m = readl(pHba->post_port);
1369 if (m != EMPTY_QUEUE) {
1372 if(time_after(jiffies,timeout)){
1373 printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name);
1374 /* We lose 4 bytes of "status" here, but we
1375 cannot free these because controller may
1376 awake and corrupt those bytes at any time */
1377 /* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
1380 schedule_timeout_uninterruptible(1);
1381 } while (m == EMPTY_QUEUE);
1383 adpt_send_nop(pHba, m);
1385 adpt_i2o_status_get(pHba);
1386 if(*status == 0x02 ||
1387 pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
1388 printk(KERN_WARNING"%s: Reset reject, trying to clear\n",
1391 PDEBUG("%s: Reset completed.\n", pHba->name);
1394 dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
1396 // This delay is to allow someone attached to the card through the debug UART to
1397 // set up the dump levels that they want before the rest of the initialization sequence
1404 static int adpt_i2o_parse_lct(adpt_hba* pHba)
1409 struct i2o_device *d;
1410 i2o_lct *lct = pHba->lct;
1414 u32 buf[10]; // larger than 7, or 8 ...
1415 struct adpt_device* pDev;
1418 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
1422 max = lct->table_size;
1426 for(i=0;i<max;i++) {
1427 if( lct->lct_entry[i].user_tid != 0xfff){
1429 * If we have hidden devices, we need to inform the upper layers about
1430 * the possible maximum id reference to handle device access when
1431 * an array is disassembled. This code has no other purpose but to
1432 * allow us future access to devices that are currently hidden
1433 * behind arrays, hotspares or have not been configured (JBOD mode).
1435 if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE &&
1436 lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL &&
1437 lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1440 tid = lct->lct_entry[i].tid;
1441 // I2O_DPT_DEVICE_INFO_GROUP_NO;
1442 if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
1445 bus_no = buf[0]>>16;
1447 scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
1448 if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
1449 printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
1452 if (scsi_id >= MAX_ID){
1453 printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no);
1456 if(bus_no > pHba->top_scsi_channel){
1457 pHba->top_scsi_channel = bus_no;
1459 if(scsi_id > pHba->top_scsi_id){
1460 pHba->top_scsi_id = scsi_id;
1462 if(scsi_lun > pHba->top_scsi_lun){
1463 pHba->top_scsi_lun = scsi_lun;
1467 d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
1470 printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
1474 d->controller = pHba;
1477 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
1480 tid = d->lct_data.tid;
1481 adpt_i2o_report_hba_unit(pHba, d);
1482 adpt_i2o_install_device(pHba, d);
1485 for(d = pHba->devices; d ; d = d->next) {
1486 if(d->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT ||
1487 d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PORT){
1488 tid = d->lct_data.tid;
1489 // TODO get the bus_no from hrt-but for now they are in order
1491 if(bus_no > pHba->top_scsi_channel){
1492 pHba->top_scsi_channel = bus_no;
1494 pHba->channel[bus_no].type = d->lct_data.class_id;
1495 pHba->channel[bus_no].tid = tid;
1496 if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0)
1498 pHba->channel[bus_no].scsi_id = buf[1];
1499 PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]);
1501 // TODO remove - this is just until we get from hrt
1503 if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
1504 printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no);
1510 // Setup adpt_device table
1511 for(d = pHba->devices; d ; d = d->next) {
1512 if(d->lct_data.class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
1513 d->lct_data.class_id == I2O_CLASS_SCSI_PERIPHERAL ||
1514 d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
1516 tid = d->lct_data.tid;
1518 // I2O_DPT_DEVICE_INFO_GROUP_NO;
1519 if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
1520 bus_no = buf[0]>>16;
1522 scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
1523 if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
1526 if (scsi_id >= MAX_ID) {
1529 if( pHba->channel[bus_no].device[scsi_id] == NULL){
1530 pDev = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1534 pHba->channel[bus_no].device[scsi_id] = pDev;
1536 for( pDev = pHba->channel[bus_no].device[scsi_id];
1537 pDev->next_lun; pDev = pDev->next_lun){
1539 pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
1540 if(pDev->next_lun == NULL) {
1543 pDev = pDev->next_lun;
1546 pDev->scsi_channel = bus_no;
1547 pDev->scsi_id = scsi_id;
1548 pDev->scsi_lun = scsi_lun;
1551 pDev->type = (buf[0])&0xff;
1552 pDev->flags = (buf[0]>>8)&0xff;
1553 if(scsi_id > pHba->top_scsi_id){
1554 pHba->top_scsi_id = scsi_id;
1556 if(scsi_lun > pHba->top_scsi_lun){
1557 pHba->top_scsi_lun = scsi_lun;
1561 printk(KERN_WARNING"Could not find SCSI ID for %s\n",
1562 d->lct_data.identity_tag);
1571 * Each I2O controller has a chain of devices on it - these match
1572 * the useful parts of the LCT of the board.
1575 static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d)
1577 mutex_lock(&adpt_configuration_lock);
1580 d->next=pHba->devices;
1582 if (pHba->devices != NULL){
1583 pHba->devices->prev=d;
1588 mutex_unlock(&adpt_configuration_lock);
1592 static int adpt_open(struct inode *inode, struct file *file)
1597 mutex_lock(&adpt_mutex);
1598 //TODO check for root access
1600 minor = iminor(inode);
1601 if (minor >= hba_count) {
1602 mutex_unlock(&adpt_mutex);
1605 mutex_lock(&adpt_configuration_lock);
1606 for (pHba = hba_chain; pHba; pHba = pHba->next) {
1607 if (pHba->unit == minor) {
1608 break; /* found adapter */
1612 mutex_unlock(&adpt_configuration_lock);
1613 mutex_unlock(&adpt_mutex);
1617 // if(pHba->in_use){
1618 // mutex_unlock(&adpt_configuration_lock);
1623 mutex_unlock(&adpt_configuration_lock);
1624 mutex_unlock(&adpt_mutex);
1629 static int adpt_close(struct inode *inode, struct file *file)
1634 minor = iminor(inode);
1635 if (minor >= hba_count) {
1638 mutex_lock(&adpt_configuration_lock);
1639 for (pHba = hba_chain; pHba; pHba = pHba->next) {
1640 if (pHba->unit == minor) {
1641 break; /* found adapter */
1644 mutex_unlock(&adpt_configuration_lock);
1655 static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
1657 u32 msg[MAX_MESSAGE_SIZE];
1661 u32 __user *user_msg = arg;
1662 u32 __user * user_reply = NULL;
1663 void **sg_list = NULL;
1673 memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1674 // get user msg size in u32s
1675 if(get_user(size, &user_msg[0])){
1680 user_reply = &user_msg[size];
1681 if(size > MAX_MESSAGE_SIZE){
1684 size *= 4; // Convert to bytes
1686 /* Copy in the user's I2O command */
1687 if(copy_from_user(msg, user_msg, size)) {
1690 get_user(reply_size, &user_reply[0]);
1691 reply_size = reply_size>>16;
1692 if(reply_size > REPLY_FRAME_SIZE){
1693 reply_size = REPLY_FRAME_SIZE;
1696 reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
1698 printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
1701 sg_offset = (msg[0]>>4)&0xf;
1702 msg[2] = 0x40000000; // IOCTL context
1703 msg[3] = adpt_ioctl_to_context(pHba, reply);
1704 if (msg[3] == (u32)-1) {
1709 sg_list = kcalloc(pHba->sg_tablesize, sizeof(*sg_list), GFP_KERNEL);
1715 // TODO add 64 bit API
1716 struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset);
1717 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1718 if (sg_count > pHba->sg_tablesize){
1719 printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
1724 for(i = 0; i < sg_count; i++) {
1727 if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
1728 printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count);
1732 sg_size = sg[i].flag_count & 0xffffff;
1733 /* Allocate memory for the transfer */
1734 p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL);
1736 printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
1737 pHba->name,sg_size,i,sg_count);
1741 sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
1742 /* Copy in the user's SG buffer if necessary */
1743 if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
1744 // sg_simple_element API is 32 bit
1745 if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) {
1746 printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
1751 /* sg_simple_element API is 32 bit, but addr < 4GB */
1752 sg[i].addr_bus = addr;
1758 * Stop any new commands from enterring the
1759 * controller while processing the ioctl
1762 scsi_block_requests(pHba->host);
1763 spin_lock_irqsave(pHba->host->host_lock, flags);
1765 rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
1767 printk("adpt_i2o_passthru: post wait failed %d %p\n",
1770 spin_unlock_irqrestore(pHba->host->host_lock, flags);
1771 scsi_unblock_requests(pHba->host);
1773 } while (rcode == -ETIMEDOUT);
1780 /* Copy back the Scatter Gather buffers back to user space */
1782 // TODO add 64 bit API
1783 struct sg_simple_element* sg;
1786 // re-acquire the original message to handle correctly the sg copy operation
1787 memset(&msg, 0, MAX_MESSAGE_SIZE*4);
1788 // get user msg size in u32s
1789 if(get_user(size, &user_msg[0])){
1795 if (size > MAX_MESSAGE_SIZE) {
1799 /* Copy in the user's I2O command */
1800 if (copy_from_user (msg, user_msg, size)) {
1804 sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
1806 // TODO add 64 bit API
1807 sg = (struct sg_simple_element*)(msg + sg_offset);
1808 for (j = 0; j < sg_count; j++) {
1809 /* Copy out the SG list to user's buffer if necessary */
1810 if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
1811 sg_size = sg[j].flag_count & 0xffffff;
1812 // sg_simple_element API is 32 bit
1813 if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) {
1814 printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
1822 /* Copy back the reply to user space */
1824 // we wrote our own values for context - now restore the user supplied ones
1825 if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
1826 printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
1829 if(copy_to_user(user_reply, reply, reply_size)) {
1830 printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
1837 if (rcode != -ETIME && rcode != -EINTR) {
1838 struct sg_simple_element *sg =
1839 (struct sg_simple_element*) (msg +sg_offset);
1841 if(sg_list[--sg_index]) {
1842 dma_free_coherent(&pHba->pDev->dev,
1843 sg[sg_index].flag_count & 0xffffff,
1845 sg[sg_index].addr_bus);
1856 #if defined __ia64__
1857 static void adpt_ia64_info(sysInfo_S* si)
1859 // This is all the info we need for now
1860 // We will add more info as our new
1861 // managmenent utility requires it
1862 si->processorType = PROC_IA64;
1866 #if defined __sparc__
1867 static void adpt_sparc_info(sysInfo_S* si)
1869 // This is all the info we need for now
1870 // We will add more info as our new
1871 // managmenent utility requires it
1872 si->processorType = PROC_ULTRASPARC;
1875 #if defined __alpha__
1876 static void adpt_alpha_info(sysInfo_S* si)
1878 // This is all the info we need for now
1879 // We will add more info as our new
1880 // managmenent utility requires it
1881 si->processorType = PROC_ALPHA;
1885 #if defined __i386__
1887 #include <uapi/asm/vm86.h>
1889 static void adpt_i386_info(sysInfo_S* si)
1891 // This is all the info we need for now
1892 // We will add more info as our new
1893 // managmenent utility requires it
1894 switch (boot_cpu_data.x86) {
1896 si->processorType = PROC_386;
1899 si->processorType = PROC_486;
1902 si->processorType = PROC_PENTIUM;
1904 default: // Just in case
1905 si->processorType = PROC_PENTIUM;
1912 * This routine returns information about the system. This does not effect
1913 * any logic and if the info is wrong - it doesn't matter.
1916 /* Get all the info we can not get from kernel services */
1917 static int adpt_system_info(void __user *buffer)
1921 memset(&si, 0, sizeof(si));
1923 si.osType = OS_LINUX;
1924 si.osMajorVersion = 0;
1925 si.osMinorVersion = 0;
1927 si.busType = SI_PCI_BUS;
1928 si.processorFamily = DPTI_sig.dsProcessorFamily;
1930 #if defined __i386__
1931 adpt_i386_info(&si);
1932 #elif defined (__ia64__)
1933 adpt_ia64_info(&si);
1934 #elif defined(__sparc__)
1935 adpt_sparc_info(&si);
1936 #elif defined (__alpha__)
1937 adpt_alpha_info(&si);
1939 si.processorType = 0xff ;
1941 if (copy_to_user(buffer, &si, sizeof(si))){
1942 printk(KERN_WARNING"dpti: Could not copy buffer TO user\n");
1949 static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
1955 void __user *argp = (void __user *)arg;
1957 minor = iminor(inode);
1958 if (minor >= DPTI_MAX_HBA){
1961 mutex_lock(&adpt_configuration_lock);
1962 for (pHba = hba_chain; pHba; pHba = pHba->next) {
1963 if (pHba->unit == minor) {
1964 break; /* found adapter */
1967 mutex_unlock(&adpt_configuration_lock);
1972 while((volatile u32) pHba->state & DPTI_STATE_RESET )
1973 schedule_timeout_uninterruptible(2);
1976 // TODO: handle 3 cases
1978 if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) {
1983 return adpt_i2o_passthru(pHba, argp);
1986 drvrHBAinfo_S HbaInfo;
1988 #define FLG_OSD_PCI_VALID 0x0001
1989 #define FLG_OSD_DMA 0x0002
1990 #define FLG_OSD_I2O 0x0004
1991 memset(&HbaInfo, 0, sizeof(HbaInfo));
1992 HbaInfo.drvrHBAnum = pHba->unit;
1993 HbaInfo.baseAddr = (ulong) pHba->base_addr_phys;
1994 HbaInfo.blinkState = adpt_read_blink_led(pHba);
1995 HbaInfo.pciBusNum = pHba->pDev->bus->number;
1996 HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn);
1997 HbaInfo.Interrupt = pHba->pDev->irq;
1998 HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O;
1999 if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){
2000 printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name);
2006 return adpt_system_info(argp);
2009 value = (u32)adpt_read_blink_led(pHba);
2010 if (copy_to_user(argp, &value, sizeof(value))) {
2016 struct Scsi_Host *shost = pHba->host;
2019 spin_lock_irqsave(shost->host_lock, flags);
2020 adpt_hba_reset(pHba);
2022 spin_unlock_irqrestore(shost->host_lock, flags);
2035 static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg)
2037 struct inode *inode;
2040 inode = file_inode(file);
2042 mutex_lock(&adpt_mutex);
2043 ret = adpt_ioctl(inode, file, cmd, arg);
2044 mutex_unlock(&adpt_mutex);
2049 #ifdef CONFIG_COMPAT
2050 static long compat_adpt_ioctl(struct file *file,
2051 unsigned int cmd, unsigned long arg)
2053 struct inode *inode;
2056 inode = file_inode(file);
2058 mutex_lock(&adpt_mutex);
2068 case (DPT_TARGET_BUSY & 0xFFFF):
2069 case DPT_TARGET_BUSY:
2070 ret = adpt_ioctl(inode, file, cmd, arg);
2076 mutex_unlock(&adpt_mutex);
2082 static irqreturn_t adpt_isr(int irq, void *dev_id)
2084 struct scsi_cmnd* cmd;
2085 adpt_hba* pHba = dev_id;
2087 void __iomem *reply;
2094 printk(KERN_WARNING"adpt_isr: NULL dev_id\n");
2098 spin_lock_irqsave(pHba->host->host_lock, flags);
2100 while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) {
2101 m = readl(pHba->reply_port);
2102 if(m == EMPTY_QUEUE){
2103 // Try twice then give up
2105 m = readl(pHba->reply_port);
2106 if(m == EMPTY_QUEUE){
2107 // This really should not happen
2108 printk(KERN_ERR"dpti: Could not get reply frame\n");
2112 if (pHba->reply_pool_pa <= m &&
2113 m < pHba->reply_pool_pa +
2114 (pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4)) {
2115 reply = (u8 *)pHba->reply_pool +
2116 (m - pHba->reply_pool_pa);
2118 /* Ick, we should *never* be here */
2119 printk(KERN_ERR "dpti: reply frame not from pool\n");
2120 reply = (u8 *)bus_to_virt(m);
2123 if (readl(reply) & MSG_FAIL) {
2124 u32 old_m = readl(reply+28);
2127 PDEBUG("%s: Failed message\n",pHba->name);
2128 if(old_m >= 0x100000){
2129 printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m);
2130 writel(m,pHba->reply_port);
2133 // Transaction context is 0 in failed reply frame
2134 msg = pHba->msg_addr_virt + old_m;
2135 old_context = readl(msg+12);
2136 writel(old_context, reply+12);
2137 adpt_send_nop(pHba, old_m);
2139 context = readl(reply+8);
2140 if(context & 0x40000000){ // IOCTL
2141 void *p = adpt_ioctl_from_context(pHba, readl(reply+12));
2143 memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
2145 // All IOCTLs will also be post wait
2147 if(context & 0x80000000){ // Post wait message
2148 status = readl(reply+16);
2150 status &= 0xffff; /* Get detail status */
2152 status = I2O_POST_WAIT_OK;
2154 if(!(context & 0x40000000)) {
2156 * The request tag is one less than the command tag
2157 * as the firmware might treat a 0 tag as invalid
2159 cmd = scsi_host_find_tag(pHba->host,
2160 readl(reply + 12) - 1);
2162 printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
2165 adpt_i2o_post_wait_complete(context, status);
2166 } else { // SCSI message
2168 * The request tag is one less than the command tag
2169 * as the firmware might treat a 0 tag as invalid
2171 cmd = scsi_host_find_tag(pHba->host,
2172 readl(reply + 12) - 1);
2174 scsi_dma_unmap(cmd);
2175 adpt_i2o_scsi_complete(reply, cmd);
2178 writel(m, pHba->reply_port);
2184 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2185 return IRQ_RETVAL(handled);
2188 static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d)
2191 u32 msg[MAX_MESSAGE_SIZE];
2203 memset(msg, 0 , sizeof(msg));
2204 len = scsi_bufflen(cmd);
2205 direction = 0x00000000;
2207 scsidir = 0x00000000; // DATA NO XFER
2210 * Set SCBFlags to indicate if data is being transferred
2211 * in or out, or no data transfer
2212 * Note: Do not have to verify index is less than 0 since
2213 * cmd->cmnd[0] is an unsigned char
2215 switch(cmd->sc_data_direction){
2216 case DMA_FROM_DEVICE:
2217 scsidir =0x40000000; // DATA IN (iop<--dev)
2220 direction=0x04000000; // SGL OUT
2221 scsidir =0x80000000; // DATA OUT (iop-->dev)
2225 case DMA_BIDIRECTIONAL:
2226 scsidir =0x40000000; // DATA IN (iop<--dev)
2227 // Assume In - and continue;
2230 printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
2231 pHba->name, cmd->cmnd[0]);
2232 cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8);
2233 cmd->scsi_done(cmd);
2237 // msg[0] is set later
2238 // I2O_CMD_SCSI_EXEC
2239 msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
2241 /* Add 1 to avoid firmware treating it as invalid command */
2242 msg[3] = cmd->request->tag + 1;
2243 // Our cards use the transaction context as the tag for queueing
2244 // Adaptec/DPT Private stuff
2245 msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
2247 /* Direction, disconnect ok | sense data | simple queue , CDBLen */
2248 // I2O_SCB_FLAG_ENABLE_DISCONNECT |
2249 // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
2250 // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
2251 msg[6] = scsidir|0x20a00000|cmd->cmd_len;
2255 // Write SCSI command into the message - always 16 byte block
2256 memset(mptr, 0, 16);
2257 memcpy(mptr, cmd->cmnd, cmd->cmd_len);
2259 lenptr=mptr++; /* Remember me - fill in when we know */
2260 if (dpt_dma64(pHba)) {
2261 reqlen = 16; // SINGLE SGE
2262 *mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
2263 *mptr++ = 1 << PAGE_SHIFT;
2265 reqlen = 14; // SINGLE SGE
2267 /* Now fill in the SGList and command */
2269 nseg = scsi_dma_map(cmd);
2272 struct scatterlist *sg;
2275 scsi_for_each_sg(cmd, sg, nseg, i) {
2277 *mptr++ = direction|0x10000000|sg_dma_len(sg);
2278 len+=sg_dma_len(sg);
2279 addr = sg_dma_address(sg);
2280 *mptr++ = dma_low(addr);
2281 if (dpt_dma64(pHba))
2282 *mptr++ = dma_high(addr);
2283 /* Make this an end of list */
2285 *lptr = direction|0xD0000000|sg_dma_len(sg);
2287 reqlen = mptr - msg;
2290 if(cmd->underflow && len != cmd->underflow){
2291 printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n",
2292 len, cmd->underflow);
2299 /* Stick the headers on */
2300 msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0);
2302 // Send it on it's way
2303 rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2);
2311 static s32 adpt_scsi_host_alloc(adpt_hba* pHba, struct scsi_host_template *sht)
2313 struct Scsi_Host *host;
2315 host = scsi_host_alloc(sht, sizeof(adpt_hba*));
2317 printk("%s: scsi_host_alloc returned NULL\n", pHba->name);
2320 host->hostdata[0] = (unsigned long)pHba;
2323 host->irq = pHba->pDev->irq;
2324 /* no IO ports, so don't have to set host->io_port and
2328 host->n_io_port = 0;
2329 /* see comments in scsi_host.h */
2331 host->max_lun = 256;
2332 host->max_channel = pHba->top_scsi_channel + 1;
2333 host->cmd_per_lun = 1;
2334 host->unique_id = (u32)sys_tbl_pa + pHba->unit;
2335 host->sg_tablesize = pHba->sg_tablesize;
2336 host->can_queue = pHba->post_fifo_size;
2342 static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd)
2347 u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits
2348 // I know this would look cleaner if I just read bytes
2349 // but the model I have been using for all the rest of the
2350 // io is in 4 byte words - so I keep that model
2351 u16 detailed_status = readl(reply+16) &0xffff;
2352 dev_status = (detailed_status & 0xff);
2353 hba_status = detailed_status >> 8;
2355 // calculate resid for sg
2356 scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+20));
2358 pHba = (adpt_hba*) cmd->device->host->hostdata[0];
2360 cmd->sense_buffer[0] = '\0'; // initialize sense valid flag to false
2362 if(!(reply_flags & MSG_FAIL)) {
2363 switch(detailed_status & I2O_SCSI_DSC_MASK) {
2364 case I2O_SCSI_DSC_SUCCESS:
2365 cmd->result = (DID_OK << 16);
2367 if (readl(reply+20) < cmd->underflow) {
2368 cmd->result = (DID_ERROR <<16);
2369 printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name);
2372 case I2O_SCSI_DSC_REQUEST_ABORTED:
2373 cmd->result = (DID_ABORT << 16);
2375 case I2O_SCSI_DSC_PATH_INVALID:
2376 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT:
2377 case I2O_SCSI_DSC_SELECTION_TIMEOUT:
2378 case I2O_SCSI_DSC_COMMAND_TIMEOUT:
2379 case I2O_SCSI_DSC_NO_ADAPTER:
2380 case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
2381 printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
2382 pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
2383 cmd->result = (DID_TIME_OUT << 16);
2385 case I2O_SCSI_DSC_ADAPTER_BUSY:
2386 case I2O_SCSI_DSC_BUS_BUSY:
2387 cmd->result = (DID_BUS_BUSY << 16);
2389 case I2O_SCSI_DSC_SCSI_BUS_RESET:
2390 case I2O_SCSI_DSC_BDR_MESSAGE_SENT:
2391 cmd->result = (DID_RESET << 16);
2393 case I2O_SCSI_DSC_PARITY_ERROR_FAILURE:
2394 printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name);
2395 cmd->result = (DID_PARITY << 16);
2397 case I2O_SCSI_DSC_UNABLE_TO_ABORT:
2398 case I2O_SCSI_DSC_COMPLETE_WITH_ERROR:
2399 case I2O_SCSI_DSC_UNABLE_TO_TERMINATE:
2400 case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED:
2401 case I2O_SCSI_DSC_AUTOSENSE_FAILED:
2402 case I2O_SCSI_DSC_DATA_OVERRUN:
2403 case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE:
2404 case I2O_SCSI_DSC_SEQUENCE_FAILURE:
2405 case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR:
2406 case I2O_SCSI_DSC_PROVIDE_FAILURE:
2407 case I2O_SCSI_DSC_REQUEST_TERMINATED:
2408 case I2O_SCSI_DSC_IDE_MESSAGE_SENT:
2409 case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT:
2410 case I2O_SCSI_DSC_MESSAGE_RECEIVED:
2411 case I2O_SCSI_DSC_INVALID_CDB:
2412 case I2O_SCSI_DSC_LUN_INVALID:
2413 case I2O_SCSI_DSC_SCSI_TID_INVALID:
2414 case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE:
2415 case I2O_SCSI_DSC_NO_NEXUS:
2416 case I2O_SCSI_DSC_CDB_RECEIVED:
2417 case I2O_SCSI_DSC_LUN_ALREADY_ENABLED:
2418 case I2O_SCSI_DSC_QUEUE_FROZEN:
2419 case I2O_SCSI_DSC_REQUEST_INVALID:
2421 printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2422 pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
2423 hba_status, dev_status, cmd->cmnd[0]);
2424 cmd->result = (DID_ERROR << 16);
2428 // copy over the request sense data if it was a check
2430 if (dev_status == SAM_STAT_CHECK_CONDITION) {
2431 u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
2432 // Copy over the sense data
2433 memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
2434 if(cmd->sense_buffer[0] == 0x70 /* class 7 */ &&
2435 cmd->sense_buffer[2] == DATA_PROTECT ){
2436 /* This is to handle an array failed */
2437 cmd->result = (DID_TIME_OUT << 16);
2438 printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
2439 pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
2440 hba_status, dev_status, cmd->cmnd[0]);
2445 /* In this condtion we could not talk to the tid
2446 * the card rejected it. We should signal a retry
2447 * for a limitted number of retries.
2449 cmd->result = (DID_TIME_OUT << 16);
2450 printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n",
2451 pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
2452 ((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
2455 cmd->result |= (dev_status);
2457 if(cmd->scsi_done != NULL){
2458 cmd->scsi_done(cmd);
2463 static s32 adpt_rescan(adpt_hba* pHba)
2469 spin_lock_irqsave(pHba->host->host_lock, flags);
2470 if ((rcode=adpt_i2o_lct_get(pHba)) < 0)
2472 if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0)
2476 spin_unlock_irqrestore(pHba->host->host_lock, flags);
2481 static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
2486 struct i2o_device *d;
2487 i2o_lct *lct = pHba->lct;
2491 u32 buf[10]; // at least 8 u32's
2492 struct adpt_device* pDev = NULL;
2493 struct i2o_device* pI2o_dev = NULL;
2496 printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
2500 max = lct->table_size;
2504 // Mark each drive as unscanned
2505 for (d = pHba->devices; d; d = d->next) {
2506 pDev =(struct adpt_device*) d->owner;
2510 pDev->state |= DPTI_DEV_UNSCANNED;
2513 printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max);
2515 for(i=0;i<max;i++) {
2516 if( lct->lct_entry[i].user_tid != 0xfff){
2520 if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
2521 lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL ||
2522 lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
2523 tid = lct->lct_entry[i].tid;
2524 if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
2525 printk(KERN_ERR"%s: Could not query device\n",pHba->name);
2528 bus_no = buf[0]>>16;
2529 if (bus_no >= MAX_CHANNEL) { /* Something wrong skip it */
2531 "%s: Channel number %d out of range\n",
2532 pHba->name, bus_no);
2537 scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
2538 pDev = pHba->channel[bus_no].device[scsi_id];
2541 if(pDev->scsi_lun == scsi_lun) {
2544 pDev = pDev->next_lun;
2546 if(!pDev ) { // Something new add it
2547 d = kmalloc(sizeof(struct i2o_device),
2551 printk(KERN_CRIT "Out of memory for I2O device data.\n");
2555 d->controller = pHba;
2558 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2561 adpt_i2o_report_hba_unit(pHba, d);
2562 adpt_i2o_install_device(pHba, d);
2564 pDev = pHba->channel[bus_no].device[scsi_id];
2567 kzalloc(sizeof(struct adpt_device),
2572 pHba->channel[bus_no].device[scsi_id] = pDev;
2574 while (pDev->next_lun) {
2575 pDev = pDev->next_lun;
2577 pDev = pDev->next_lun =
2578 kzalloc(sizeof(struct adpt_device),
2584 pDev->tid = d->lct_data.tid;
2585 pDev->scsi_channel = bus_no;
2586 pDev->scsi_id = scsi_id;
2587 pDev->scsi_lun = scsi_lun;
2590 pDev->type = (buf[0])&0xff;
2591 pDev->flags = (buf[0]>>8)&0xff;
2592 // Too late, SCSI system has made up it's mind, but what the hey ...
2593 if(scsi_id > pHba->top_scsi_id){
2594 pHba->top_scsi_id = scsi_id;
2596 if(scsi_lun > pHba->top_scsi_lun){
2597 pHba->top_scsi_lun = scsi_lun;
2600 } // end of new i2o device
2602 // We found an old device - check it
2604 if(pDev->scsi_lun == scsi_lun) {
2605 if(!scsi_device_online(pDev->pScsi_dev)) {
2606 printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n",
2607 pHba->name,bus_no,scsi_id,scsi_lun);
2608 if (pDev->pScsi_dev) {
2609 scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
2613 if(d->lct_data.tid != tid) { // something changed
2615 memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
2616 if (pDev->pScsi_dev) {
2617 pDev->pScsi_dev->changed = TRUE;
2618 pDev->pScsi_dev->removable = TRUE;
2621 // Found it - mark it scanned
2622 pDev->state = DPTI_DEV_ONLINE;
2625 pDev = pDev->next_lun;
2629 for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) {
2630 pDev =(struct adpt_device*) pI2o_dev->owner;
2634 // Drive offline drives that previously existed but could not be found
2636 if (pDev->state & DPTI_DEV_UNSCANNED){
2637 pDev->state = DPTI_DEV_OFFLINE;
2638 printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
2639 if (pDev->pScsi_dev) {
2640 scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
2647 /*============================================================================
2648 * Routines from i2o subsystem
2649 *============================================================================
2655 * Bring an I2O controller into HOLD state. See the spec.
2657 static int adpt_i2o_activate_hba(adpt_hba* pHba)
2661 if(pHba->initialized ) {
2662 if (adpt_i2o_status_get(pHba) < 0) {
2663 if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2664 printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2667 if (adpt_i2o_status_get(pHba) < 0) {
2668 printk(KERN_INFO "HBA not responding.\n");
2673 if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) {
2674 printk(KERN_CRIT "%s: hardware fault\n", pHba->name);
2678 if (pHba->status_block->iop_state == ADAPTER_STATE_READY ||
2679 pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
2680 pHba->status_block->iop_state == ADAPTER_STATE_HOLD ||
2681 pHba->status_block->iop_state == ADAPTER_STATE_FAILED) {
2682 adpt_i2o_reset_hba(pHba);
2683 if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
2684 printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name);
2689 if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
2690 printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
2696 if (adpt_i2o_init_outbound_q(pHba) < 0) {
2702 if (adpt_i2o_hrt_get(pHba) < 0) {
2710 * Bring a controller online into OPERATIONAL state.
2713 static int adpt_i2o_online_hba(adpt_hba* pHba)
2715 if (adpt_i2o_systab_send(pHba) < 0)
2717 /* In READY state */
2719 if (adpt_i2o_enable_hba(pHba) < 0)
2722 /* In OPERATIONAL state */
2726 static s32 adpt_send_nop(adpt_hba*pHba,u32 m)
2729 ulong timeout = jiffies + 5*HZ;
2731 while(m == EMPTY_QUEUE){
2733 m = readl(pHba->post_port);
2734 if(m != EMPTY_QUEUE){
2737 if(time_after(jiffies,timeout)){
2738 printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name);
2741 schedule_timeout_uninterruptible(1);
2743 msg = (u32 __iomem *)(pHba->msg_addr_virt + m);
2744 writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]);
2745 writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]);
2749 writel(m, pHba->post_port);
2754 static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
2758 u32 __iomem *msg = NULL;
2760 ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
2765 m = readl(pHba->post_port);
2766 if (m != EMPTY_QUEUE) {
2770 if(time_after(jiffies,timeout)){
2771 printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name);
2774 schedule_timeout_uninterruptible(1);
2775 } while(m == EMPTY_QUEUE);
2777 msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2779 status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
2781 adpt_send_nop(pHba, m);
2782 printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n",
2787 writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
2788 writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
2790 writel(0x0106, &msg[3]); /* Transaction context */
2791 writel(4096, &msg[4]); /* Host page frame size */
2792 writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]); /* Outbound msg frame size and Initcode */
2793 writel(0xD0000004, &msg[6]); /* Simple SG LE, EOB */
2794 writel((u32)addr, &msg[7]);
2796 writel(m, pHba->post_port);
2799 // Wait for the reply status to come back
2802 if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) {
2807 if(time_after(jiffies,timeout)){
2808 printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name);
2809 /* We lose 4 bytes of "status" here, but we
2810 cannot free these because controller may
2811 awake and corrupt those bytes at any time */
2812 /* dma_free_coherent(&pHba->pDev->dev, 4, status, addr); */
2815 schedule_timeout_uninterruptible(1);
2818 // If the command was successful, fill the fifo with our reply
2820 if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
2821 dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
2824 dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
2826 if(pHba->reply_pool != NULL) {
2827 dma_free_coherent(&pHba->pDev->dev,
2828 pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
2829 pHba->reply_pool, pHba->reply_pool_pa);
2832 pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev,
2833 pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
2834 &pHba->reply_pool_pa, GFP_KERNEL);
2835 if (!pHba->reply_pool) {
2836 printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name);
2840 for(i = 0; i < pHba->reply_fifo_size; i++) {
2841 writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4),
2845 adpt_i2o_status_get(pHba);
2851 * I2O System Table. Contains information about
2852 * all the IOPs in the system. Used to inform IOPs
2853 * about each other's existence.
2855 * sys_tbl_ver is the CurrentChangeIndicator that is
2856 * used by IOPs to track changes.
2861 static s32 adpt_i2o_status_get(adpt_hba* pHba)
2866 u8 *status_block=NULL;
2868 if(pHba->status_block == NULL) {
2869 pHba->status_block = dma_alloc_coherent(&pHba->pDev->dev,
2870 sizeof(i2o_status_block),
2871 &pHba->status_block_pa, GFP_KERNEL);
2872 if(pHba->status_block == NULL) {
2874 "dpti%d: Get Status Block failed; Out of memory. \n",
2879 memset(pHba->status_block, 0, sizeof(i2o_status_block));
2880 status_block = (u8*)(pHba->status_block);
2881 timeout = jiffies+TMOUT_GETSTATUS*HZ;
2884 m = readl(pHba->post_port);
2885 if (m != EMPTY_QUEUE) {
2888 if(time_after(jiffies,timeout)){
2889 printk(KERN_ERR "%s: Timeout waiting for message !\n",
2893 schedule_timeout_uninterruptible(1);
2894 } while(m==EMPTY_QUEUE);
2897 msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
2899 writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]);
2900 writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]);
2905 writel( dma_low(pHba->status_block_pa), &msg[6]);
2906 writel( dma_high(pHba->status_block_pa), &msg[7]);
2907 writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes
2910 writel(m, pHba->post_port);
2913 while(status_block[87]!=0xff){
2914 if(time_after(jiffies,timeout)){
2915 printk(KERN_ERR"dpti%d: Get status timeout.\n",
2920 schedule_timeout_uninterruptible(1);
2923 // Set up our number of outbound and inbound messages
2924 pHba->post_fifo_size = pHba->status_block->max_inbound_frames;
2925 if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) {
2926 pHba->post_fifo_size = MAX_TO_IOP_MESSAGES;
2929 pHba->reply_fifo_size = pHba->status_block->max_outbound_frames;
2930 if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) {
2931 pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES;
2934 // Calculate the Scatter Gather list size
2935 if (dpt_dma64(pHba)) {
2937 = ((pHba->status_block->inbound_frame_size * 4
2939 / (sizeof(struct sg_simple_element) + sizeof(u32)));
2942 = ((pHba->status_block->inbound_frame_size * 4
2944 / sizeof(struct sg_simple_element));
2946 if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
2947 pHba->sg_tablesize = SG_LIST_ELEMENTS;
2952 printk("dpti%d: State = ",pHba->unit);
2953 switch(pHba->status_block->iop_state) {
2967 printk("OPERATIONAL\n");
2973 printk("FAULTED\n");
2976 printk("%x (unknown!!)\n",pHba->status_block->iop_state);
2983 * Get the IOP's Logical Configuration Table
2985 static int adpt_i2o_lct_get(adpt_hba* pHba)
2991 if ((pHba->lct_size == 0) || (pHba->lct == NULL)){
2992 pHba->lct_size = pHba->status_block->expected_lct_size;
2995 if (pHba->lct == NULL) {
2996 pHba->lct = dma_alloc_coherent(&pHba->pDev->dev,
2997 pHba->lct_size, &pHba->lct_pa,
2999 if(pHba->lct == NULL) {
3000 printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
3005 memset(pHba->lct, 0, pHba->lct_size);
3007 msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
3008 msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
3011 msg[4] = 0xFFFFFFFF; /* All devices */
3012 msg[5] = 0x00000000; /* Report now */
3013 msg[6] = 0xD0000000|pHba->lct_size;
3014 msg[7] = (u32)pHba->lct_pa;
3016 if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) {
3017 printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n",
3019 printk(KERN_ERR"Adaptec: Error Reading Hardware.\n");
3023 if ((pHba->lct->table_size << 2) > pHba->lct_size) {
3024 pHba->lct_size = pHba->lct->table_size << 2;
3025 dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
3026 pHba->lct, pHba->lct_pa);
3029 } while (pHba->lct == NULL);
3031 PDEBUG("%s: Hardware resource table read.\n", pHba->name);
3034 // I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
3035 if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
3036 pHba->FwDebugBufferSize = buf[1];
3037 pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0],
3038 pHba->FwDebugBufferSize);
3039 if (pHba->FwDebugBuffer_P) {
3040 pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P +
3041 FW_DEBUG_FLAGS_OFFSET;
3042 pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P +
3043 FW_DEBUG_BLED_OFFSET;
3044 pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1;
3045 pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P +
3046 FW_DEBUG_STR_LENGTH_OFFSET;
3047 pHba->FwDebugBuffer_P += buf[2];
3048 pHba->FwDebugFlags = 0;
3055 static int adpt_i2o_build_sys_table(void)
3057 adpt_hba* pHba = hba_chain;
3061 dma_free_coherent(&pHba->pDev->dev, sys_tbl_len,
3062 sys_tbl, sys_tbl_pa);
3064 sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs
3065 (hba_count) * sizeof(struct i2o_sys_tbl_entry);
3067 sys_tbl = dma_alloc_coherent(&pHba->pDev->dev,
3068 sys_tbl_len, &sys_tbl_pa, GFP_KERNEL);
3070 printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");
3074 sys_tbl->num_entries = hba_count;
3075 sys_tbl->version = I2OVERSION;
3076 sys_tbl->change_ind = sys_tbl_ind++;
3078 for(pHba = hba_chain; pHba; pHba = pHba->next) {
3080 // Get updated Status Block so we have the latest information
3081 if (adpt_i2o_status_get(pHba)) {
3082 sys_tbl->num_entries--;
3083 continue; // try next one
3086 sys_tbl->iops[count].org_id = pHba->status_block->org_id;
3087 sys_tbl->iops[count].iop_id = pHba->unit + 2;
3088 sys_tbl->iops[count].seg_num = 0;
3089 sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version;
3090 sys_tbl->iops[count].iop_state = pHba->status_block->iop_state;
3091 sys_tbl->iops[count].msg_type = pHba->status_block->msg_type;
3092 sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size;
3093 sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
3094 sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities;
3095 addr = pHba->base_addr_phys + 0x40;
3096 sys_tbl->iops[count].inbound_low = dma_low(addr);
3097 sys_tbl->iops[count].inbound_high = dma_high(addr);
3104 u32 *table = (u32*)sys_tbl;
3105 printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2));
3106 for(count = 0; count < (sys_tbl_len >>2); count++) {
3107 printk(KERN_INFO "sys_tbl[%d] = %0#10x\n",
3108 count, table[count]);
3118 * Dump the information block associated with a given unit (TID)
3121 static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d)
3124 int unit = d->lct_data.tid;
3126 printk(KERN_INFO "TID %3.3d ", unit);
3128 if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0)
3131 printk(" Vendor: %-12.12s", buf);
3133 if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0)
3136 printk(" Device: %-12.12s", buf);
3138 if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0)
3141 printk(" Rev: %-12.12s\n", buf);
3144 printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id));
3145 printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class);
3146 printk(KERN_INFO "\tFlags: ");
3148 if(d->lct_data.device_flags&(1<<0))
3149 printk("C"); // ConfigDialog requested
3150 if(d->lct_data.device_flags&(1<<1))
3151 printk("U"); // Multi-user capable
3152 if(!(d->lct_data.device_flags&(1<<4)))
3153 printk("P"); // Peer service enabled!
3154 if(!(d->lct_data.device_flags&(1<<5)))
3155 printk("M"); // Mgmt service enabled!
3162 * Do i2o class name lookup
3164 static const char *adpt_i2o_get_class_name(int class)
3167 static char *i2o_class_name[] = {
3169 "Device Driver Module",
3174 "Fibre Channel Port",
3175 "Fibre Channel Device",
3179 "Floppy Controller",
3181 "Secondary Bus Port",
3182 "Peer Transport Agent",
3187 switch(class&0xFFF) {
3188 case I2O_CLASS_EXECUTIVE:
3192 case I2O_CLASS_RANDOM_BLOCK_STORAGE:
3194 case I2O_CLASS_SEQUENTIAL_STORAGE:
3200 case I2O_CLASS_FIBRE_CHANNEL_PORT:
3202 case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
3204 case I2O_CLASS_SCSI_PERIPHERAL:
3206 case I2O_CLASS_ATE_PORT:
3208 case I2O_CLASS_ATE_PERIPHERAL:
3210 case I2O_CLASS_FLOPPY_CONTROLLER:
3212 case I2O_CLASS_FLOPPY_DEVICE:
3214 case I2O_CLASS_BUS_ADAPTER_PORT:
3216 case I2O_CLASS_PEER_TRANSPORT_AGENT:
3218 case I2O_CLASS_PEER_TRANSPORT:
3221 return i2o_class_name[idx];
3226 static s32 adpt_i2o_hrt_get(adpt_hba* pHba)
3229 int ret, size = sizeof(i2o_hrt);
3232 if (pHba->hrt == NULL) {
3233 pHba->hrt = dma_alloc_coherent(&pHba->pDev->dev,
3234 size, &pHba->hrt_pa, GFP_KERNEL);
3235 if (pHba->hrt == NULL) {
3236 printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name);
3241 msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
3242 msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
3245 msg[4]= (0xD0000000 | size); /* Simple transaction */
3246 msg[5]= (u32)pHba->hrt_pa; /* Dump it here */
3248 if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) {
3249 printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret);
3253 if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) {
3254 int newsize = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
3255 dma_free_coherent(&pHba->pDev->dev, size,
3256 pHba->hrt, pHba->hrt_pa);
3260 } while(pHba->hrt == NULL);
3265 * Query one scalar group value or a whole scalar group.
3267 static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid,
3268 int group, int field, void *buf, int buflen)
3270 u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
3272 dma_addr_t opblk_pa;
3274 dma_addr_t resblk_pa;
3278 /* 8 bytes for header */
3279 resblk_va = dma_alloc_coherent(&pHba->pDev->dev,
3280 sizeof(u8) * (8 + buflen), &resblk_pa, GFP_KERNEL);
3281 if (resblk_va == NULL) {
3282 printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name);
3286 opblk_va = dma_alloc_coherent(&pHba->pDev->dev,
3287 sizeof(opblk), &opblk_pa, GFP_KERNEL);
3288 if (opblk_va == NULL) {
3289 dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
3290 resblk_va, resblk_pa);
3291 printk(KERN_CRIT "%s: query operation failed; Out of memory.\n",
3295 if (field == -1) /* whole group */
3298 memcpy(opblk_va, opblk, sizeof(opblk));
3299 size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid,
3300 opblk_va, opblk_pa, sizeof(opblk),
3301 resblk_va, resblk_pa, sizeof(u8)*(8+buflen));
3302 dma_free_coherent(&pHba->pDev->dev, sizeof(opblk), opblk_va, opblk_pa);
3303 if (size == -ETIME) {
3304 dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
3305 resblk_va, resblk_pa);
3306 printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name);
3308 } else if (size == -EINTR) {
3309 dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
3310 resblk_va, resblk_pa);
3311 printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name);
3315 memcpy(buf, resblk_va+8, buflen); /* cut off header */
3317 dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
3318 resblk_va, resblk_pa);
3326 /* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
3328 * This function can be used for all UtilParamsGet/Set operations.
3329 * The OperationBlock is given in opblk-buffer,
3330 * and results are returned in resblk-buffer.
3331 * Note that the minimum sized resblk is 8 bytes and contains
3332 * ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
3334 static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
3335 void *opblk_va, dma_addr_t opblk_pa, int oplen,
3336 void *resblk_va, dma_addr_t resblk_pa, int reslen)
3339 u32 *res = (u32 *)resblk_va;
3342 msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
3343 msg[1] = cmd << 24 | HOST_TID << 12 | tid;
3347 msg[5] = 0x54000000 | oplen; /* OperationBlock */
3348 msg[6] = (u32)opblk_pa;
3349 msg[7] = 0xD0000000 | reslen; /* ResultBlock */
3350 msg[8] = (u32)resblk_pa;
3352 if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
3353 printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk_va);
3354 return wait_status; /* -DetailedStatus */
3357 if (res[1]&0x00FF0000) { /* BlockStatus != SUCCESS */
3358 printk(KERN_WARNING "%s: %s - Error:\n ErrorInfoSize = 0x%02x, "
3359 "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
3361 (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
3363 res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF);
3364 return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
3367 return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
3371 static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba)
3376 adpt_i2o_status_get(pHba);
3378 /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
3380 if((pHba->status_block->iop_state != ADAPTER_STATE_READY) &&
3381 (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){
3385 msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3386 msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
3390 if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3391 printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n",
3394 printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit);
3397 adpt_i2o_status_get(pHba);
3403 * Enable IOP. Allows the IOP to resume external operations.
3405 static int adpt_i2o_enable_hba(adpt_hba* pHba)
3410 adpt_i2o_status_get(pHba);
3411 if(!pHba->status_block){
3414 /* Enable only allowed on READY state */
3415 if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
3418 if(pHba->status_block->iop_state != ADAPTER_STATE_READY)
3421 msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
3422 msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
3426 if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
3427 printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n",
3430 PDEBUG("%s: Enabled.\n", pHba->name);
3433 adpt_i2o_status_get(pHba);
3438 static int adpt_i2o_systab_send(adpt_hba* pHba)
3443 msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
3444 msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
3447 msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */
3448 msg[5] = 0; /* Segment 0 */
3451 * Provide three SGL-elements:
3452 * System table (SysTab), Private memory space declaration and
3453 * Private i/o space declaration
3455 msg[6] = 0x54000000 | sys_tbl_len;
3456 msg[7] = (u32)sys_tbl_pa;
3457 msg[8] = 0x54000000 | 0;
3459 msg[10] = 0xD4000000 | 0;
3462 if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) {
3463 printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n",
3468 PINFO("%s: SysTab set.\n", pHba->name);
3476 /*============================================================================
3478 *============================================================================
3484 static static void adpt_delay(int millisec)
3487 for (i = 0; i < millisec; i++) {
3488 udelay(1000); /* delay for one millisecond */
3494 static struct scsi_host_template driver_template = {
3495 .module = THIS_MODULE,
3497 .proc_name = "dpt_i2o",
3498 .show_info = adpt_show_info,
3500 .queuecommand = adpt_queue,
3501 .eh_abort_handler = adpt_abort,
3502 .eh_device_reset_handler = adpt_device_reset,
3503 .eh_bus_reset_handler = adpt_bus_reset,
3504 .eh_host_reset_handler = adpt_reset,
3505 .bios_param = adpt_bios_param,
3506 .slave_configure = adpt_slave_configure,
3507 .can_queue = MAX_TO_IOP_MESSAGES,
3511 static int __init adpt_init(void)
3514 adpt_hba *pHba, *next;
3516 printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n");
3518 error = adpt_detect(&driver_template);
3521 if (hba_chain == NULL)
3524 for (pHba = hba_chain; pHba; pHba = pHba->next) {
3525 error = scsi_add_host(pHba->host, &pHba->pDev->dev);
3528 scsi_scan_host(pHba->host);
3532 for (pHba = hba_chain; pHba; pHba = next) {
3534 scsi_remove_host(pHba->host);
3539 static void __exit adpt_exit(void)
3541 adpt_hba *pHba, *next;
3543 for (pHba = hba_chain; pHba; pHba = next) {
3549 module_init(adpt_init);
3550 module_exit(adpt_exit);
3552 MODULE_LICENSE("GPL");