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1da177e4 LT |
1 | /*************************************************************************** |
2 | dpti.c - description | |
3 | ------------------- | |
4 | begin : Thu Sep 7 2000 | |
5 | copyright : (C) 2000 by Adaptec | |
6 | ||
7 | July 30, 2001 First version being submitted | |
8 | for inclusion in the kernel. V2.4 | |
9 | ||
10 | See Documentation/scsi/dpti.txt for history, notes, license info | |
11 | and credits | |
12 | ***************************************************************************/ | |
13 | ||
14 | /*************************************************************************** | |
15 | * * | |
16 | * This program is free software; you can redistribute it and/or modify * | |
17 | * it under the terms of the GNU General Public License as published by * | |
18 | * the Free Software Foundation; either version 2 of the License, or * | |
19 | * (at your option) any later version. * | |
20 | * * | |
21 | ***************************************************************************/ | |
22 | /*************************************************************************** | |
23 | * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp> | |
24 | - Support 2.6 kernel and DMA-mapping | |
25 | - ioctl fix for raid tools | |
26 | - use schedule_timeout in long long loop | |
27 | **************************************************************************/ | |
28 | ||
29 | /*#define DEBUG 1 */ | |
30 | /*#define UARTDELAY 1 */ | |
31 | ||
32 | /* On the real kernel ADDR32 should always be zero for 2.4. GFP_HIGH allocates | |
33 | high pages. Keep the macro around because of the broken unmerged ia64 tree */ | |
34 | ||
35 | #define ADDR32 (0) | |
36 | ||
37 | #include <linux/version.h> | |
38 | #include <linux/module.h> | |
39 | ||
40 | MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn"); | |
41 | MODULE_DESCRIPTION("Adaptec I2O RAID Driver"); | |
42 | ||
43 | //////////////////////////////////////////////////////////////// | |
44 | ||
45 | #include <linux/ioctl.h> /* For SCSI-Passthrough */ | |
46 | #include <asm/uaccess.h> | |
47 | ||
48 | #include <linux/stat.h> | |
49 | #include <linux/slab.h> /* for kmalloc() */ | |
50 | #include <linux/config.h> /* for CONFIG_PCI */ | |
51 | #include <linux/pci.h> /* for PCI support */ | |
52 | #include <linux/proc_fs.h> | |
53 | #include <linux/blkdev.h> | |
54 | #include <linux/delay.h> /* for udelay */ | |
55 | #include <linux/interrupt.h> | |
56 | #include <linux/kernel.h> /* for printk */ | |
57 | #include <linux/sched.h> | |
58 | #include <linux/reboot.h> | |
59 | #include <linux/spinlock.h> | |
60 | #include <linux/smp_lock.h> | |
61 | ||
62 | #include <linux/timer.h> | |
63 | #include <linux/string.h> | |
64 | #include <linux/ioport.h> | |
65 | ||
66 | #include <asm/processor.h> /* for boot_cpu_data */ | |
67 | #include <asm/pgtable.h> | |
68 | #include <asm/io.h> /* for virt_to_bus, etc. */ | |
69 | ||
70 | #include <scsi/scsi.h> | |
71 | #include <scsi/scsi_cmnd.h> | |
72 | #include <scsi/scsi_device.h> | |
73 | #include <scsi/scsi_host.h> | |
74 | #include <scsi/scsi_tcq.h> | |
75 | ||
76 | #include "dpt/dptsig.h" | |
77 | #include "dpti.h" | |
78 | ||
79 | /*============================================================================ | |
80 | * Create a binary signature - this is read by dptsig | |
81 | * Needed for our management apps | |
82 | *============================================================================ | |
83 | */ | |
84 | static dpt_sig_S DPTI_sig = { | |
85 | {'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION, | |
86 | #ifdef __i386__ | |
87 | PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM, | |
88 | #elif defined(__ia64__) | |
89 | PROC_INTEL, PROC_IA64, | |
90 | #elif defined(__sparc__) | |
91 | PROC_ULTRASPARC, PROC_ULTRASPARC, | |
92 | #elif defined(__alpha__) | |
93 | PROC_ALPHA, PROC_ALPHA, | |
94 | #else | |
95 | (-1),(-1), | |
96 | #endif | |
97 | FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL, | |
98 | ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION, | |
99 | DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver" | |
100 | }; | |
101 | ||
102 | ||
103 | ||
104 | ||
105 | /*============================================================================ | |
106 | * Globals | |
107 | *============================================================================ | |
108 | */ | |
109 | ||
110 | static DECLARE_MUTEX(adpt_configuration_lock); | |
111 | ||
112 | static struct i2o_sys_tbl *sys_tbl = NULL; | |
113 | static int sys_tbl_ind = 0; | |
114 | static int sys_tbl_len = 0; | |
115 | ||
1da177e4 LT |
116 | static adpt_hba* hba_chain = NULL; |
117 | static int hba_count = 0; | |
118 | ||
119 | static struct file_operations adpt_fops = { | |
120 | .ioctl = adpt_ioctl, | |
121 | .open = adpt_open, | |
122 | .release = adpt_close | |
123 | }; | |
124 | ||
125 | #ifdef REBOOT_NOTIFIER | |
126 | static struct notifier_block adpt_reboot_notifier = | |
127 | { | |
128 | adpt_reboot_event, | |
129 | NULL, | |
130 | 0 | |
131 | }; | |
132 | #endif | |
133 | ||
134 | /* Structures and definitions for synchronous message posting. | |
135 | * See adpt_i2o_post_wait() for description | |
136 | * */ | |
137 | struct adpt_i2o_post_wait_data | |
138 | { | |
139 | int status; | |
140 | u32 id; | |
141 | adpt_wait_queue_head_t *wq; | |
142 | struct adpt_i2o_post_wait_data *next; | |
143 | }; | |
144 | ||
145 | static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL; | |
146 | static u32 adpt_post_wait_id = 0; | |
147 | static DEFINE_SPINLOCK(adpt_post_wait_lock); | |
148 | ||
149 | ||
150 | /*============================================================================ | |
151 | * Functions | |
152 | *============================================================================ | |
153 | */ | |
154 | ||
155 | static u8 adpt_read_blink_led(adpt_hba* host) | |
156 | { | |
157 | if(host->FwDebugBLEDflag_P != 0) { | |
158 | if( readb(host->FwDebugBLEDflag_P) == 0xbc ){ | |
159 | return readb(host->FwDebugBLEDvalue_P); | |
160 | } | |
161 | } | |
162 | return 0; | |
163 | } | |
164 | ||
165 | /*============================================================================ | |
166 | * Scsi host template interface functions | |
167 | *============================================================================ | |
168 | */ | |
169 | ||
170 | static struct pci_device_id dptids[] = { | |
171 | { PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, | |
172 | { PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, | |
173 | { 0, } | |
174 | }; | |
175 | MODULE_DEVICE_TABLE(pci,dptids); | |
176 | ||
177 | static int adpt_detect(struct scsi_host_template* sht) | |
178 | { | |
179 | struct pci_dev *pDev = NULL; | |
180 | adpt_hba* pHba; | |
181 | ||
182 | adpt_init(); | |
183 | ||
184 | PINFO("Detecting Adaptec I2O RAID controllers...\n"); | |
185 | ||
186 | /* search for all Adatpec I2O RAID cards */ | |
187 | while ((pDev = pci_find_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) { | |
188 | if(pDev->device == PCI_DPT_DEVICE_ID || | |
189 | pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){ | |
190 | if(adpt_install_hba(sht, pDev) ){ | |
191 | PERROR("Could not Init an I2O RAID device\n"); | |
192 | PERROR("Will not try to detect others.\n"); | |
193 | return hba_count-1; | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | /* In INIT state, Activate IOPs */ | |
199 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
200 | // Activate does get status , init outbound, and get hrt | |
201 | if (adpt_i2o_activate_hba(pHba) < 0) { | |
202 | adpt_i2o_delete_hba(pHba); | |
203 | } | |
204 | } | |
205 | ||
206 | ||
207 | /* Active IOPs in HOLD state */ | |
208 | ||
209 | rebuild_sys_tab: | |
210 | if (hba_chain == NULL) | |
211 | return 0; | |
212 | ||
213 | /* | |
214 | * If build_sys_table fails, we kill everything and bail | |
215 | * as we can't init the IOPs w/o a system table | |
216 | */ | |
217 | if (adpt_i2o_build_sys_table() < 0) { | |
218 | adpt_i2o_sys_shutdown(); | |
219 | return 0; | |
220 | } | |
221 | ||
222 | PDEBUG("HBA's in HOLD state\n"); | |
223 | ||
224 | /* If IOP don't get online, we need to rebuild the System table */ | |
225 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
226 | if (adpt_i2o_online_hba(pHba) < 0) { | |
227 | adpt_i2o_delete_hba(pHba); | |
228 | goto rebuild_sys_tab; | |
229 | } | |
230 | } | |
231 | ||
232 | /* Active IOPs now in OPERATIONAL state */ | |
233 | PDEBUG("HBA's in OPERATIONAL state\n"); | |
234 | ||
235 | printk("dpti: If you have a lot of devices this could take a few minutes.\n"); | |
236 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
237 | printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name); | |
238 | if (adpt_i2o_lct_get(pHba) < 0){ | |
239 | adpt_i2o_delete_hba(pHba); | |
240 | continue; | |
241 | } | |
242 | ||
243 | if (adpt_i2o_parse_lct(pHba) < 0){ | |
244 | adpt_i2o_delete_hba(pHba); | |
245 | continue; | |
246 | } | |
247 | adpt_inquiry(pHba); | |
248 | } | |
249 | ||
250 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
251 | if( adpt_scsi_register(pHba,sht) < 0){ | |
252 | adpt_i2o_delete_hba(pHba); | |
253 | continue; | |
254 | } | |
255 | pHba->initialized = TRUE; | |
256 | pHba->state &= ~DPTI_STATE_RESET; | |
257 | } | |
258 | ||
259 | // Register our control device node | |
260 | // nodes will need to be created in /dev to access this | |
261 | // the nodes can not be created from within the driver | |
262 | if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) { | |
263 | adpt_i2o_sys_shutdown(); | |
264 | return 0; | |
265 | } | |
266 | return hba_count; | |
267 | } | |
268 | ||
269 | ||
270 | /* | |
271 | * scsi_unregister will be called AFTER we return. | |
272 | */ | |
273 | static int adpt_release(struct Scsi_Host *host) | |
274 | { | |
275 | adpt_hba* pHba = (adpt_hba*) host->hostdata[0]; | |
276 | // adpt_i2o_quiesce_hba(pHba); | |
277 | adpt_i2o_delete_hba(pHba); | |
278 | scsi_unregister(host); | |
279 | return 0; | |
280 | } | |
281 | ||
282 | ||
283 | static void adpt_inquiry(adpt_hba* pHba) | |
284 | { | |
285 | u32 msg[14]; | |
286 | u32 *mptr; | |
287 | u32 *lenptr; | |
288 | int direction; | |
289 | int scsidir; | |
290 | u32 len; | |
291 | u32 reqlen; | |
292 | u8* buf; | |
293 | u8 scb[16]; | |
294 | s32 rcode; | |
295 | ||
296 | memset(msg, 0, sizeof(msg)); | |
297 | buf = (u8*)kmalloc(80,GFP_KERNEL|ADDR32); | |
298 | if(!buf){ | |
299 | printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name); | |
300 | return; | |
301 | } | |
302 | memset((void*)buf, 0, 36); | |
303 | ||
304 | len = 36; | |
305 | direction = 0x00000000; | |
306 | scsidir =0x40000000; // DATA IN (iop<--dev) | |
307 | ||
308 | reqlen = 14; // SINGLE SGE | |
309 | /* Stick the headers on */ | |
310 | msg[0] = reqlen<<16 | SGL_OFFSET_12; | |
311 | msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID); | |
312 | msg[2] = 0; | |
313 | msg[3] = 0; | |
314 | // Adaptec/DPT Private stuff | |
315 | msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16; | |
316 | msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/; | |
317 | /* Direction, disconnect ok | sense data | simple queue , CDBLen */ | |
318 | // I2O_SCB_FLAG_ENABLE_DISCONNECT | | |
319 | // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | | |
320 | // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; | |
321 | msg[6] = scsidir|0x20a00000| 6 /* cmd len*/; | |
322 | ||
323 | mptr=msg+7; | |
324 | ||
325 | memset(scb, 0, sizeof(scb)); | |
326 | // Write SCSI command into the message - always 16 byte block | |
327 | scb[0] = INQUIRY; | |
328 | scb[1] = 0; | |
329 | scb[2] = 0; | |
330 | scb[3] = 0; | |
331 | scb[4] = 36; | |
332 | scb[5] = 0; | |
333 | // Don't care about the rest of scb | |
334 | ||
335 | memcpy(mptr, scb, sizeof(scb)); | |
336 | mptr+=4; | |
337 | lenptr=mptr++; /* Remember me - fill in when we know */ | |
338 | ||
339 | /* Now fill in the SGList and command */ | |
340 | *lenptr = len; | |
341 | *mptr++ = 0xD0000000|direction|len; | |
342 | *mptr++ = virt_to_bus(buf); | |
343 | ||
344 | // Send it on it's way | |
345 | rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120); | |
346 | if (rcode != 0) { | |
347 | sprintf(pHba->detail, "Adaptec I2O RAID"); | |
348 | printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode); | |
349 | if (rcode != -ETIME && rcode != -EINTR) | |
350 | kfree(buf); | |
351 | } else { | |
352 | memset(pHba->detail, 0, sizeof(pHba->detail)); | |
353 | memcpy(&(pHba->detail), "Vendor: Adaptec ", 16); | |
354 | memcpy(&(pHba->detail[16]), " Model: ", 8); | |
355 | memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16); | |
356 | memcpy(&(pHba->detail[40]), " FW: ", 4); | |
357 | memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4); | |
358 | pHba->detail[48] = '\0'; /* precautionary */ | |
359 | kfree(buf); | |
360 | } | |
361 | adpt_i2o_status_get(pHba); | |
362 | return ; | |
363 | } | |
364 | ||
365 | ||
366 | static int adpt_slave_configure(struct scsi_device * device) | |
367 | { | |
368 | struct Scsi_Host *host = device->host; | |
369 | adpt_hba* pHba; | |
370 | ||
371 | pHba = (adpt_hba *) host->hostdata[0]; | |
372 | ||
373 | if (host->can_queue && device->tagged_supported) { | |
374 | scsi_adjust_queue_depth(device, MSG_SIMPLE_TAG, | |
375 | host->can_queue - 1); | |
376 | } else { | |
377 | scsi_adjust_queue_depth(device, 0, 1); | |
378 | } | |
379 | return 0; | |
380 | } | |
381 | ||
382 | static int adpt_queue(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *)) | |
383 | { | |
384 | adpt_hba* pHba = NULL; | |
385 | struct adpt_device* pDev = NULL; /* dpt per device information */ | |
386 | ulong timeout = jiffies + (TMOUT_SCSI*HZ); | |
387 | ||
388 | cmd->scsi_done = done; | |
389 | /* | |
390 | * SCSI REQUEST_SENSE commands will be executed automatically by the | |
391 | * Host Adapter for any errors, so they should not be executed | |
392 | * explicitly unless the Sense Data is zero indicating that no error | |
393 | * occurred. | |
394 | */ | |
395 | ||
396 | if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) { | |
397 | cmd->result = (DID_OK << 16); | |
398 | cmd->scsi_done(cmd); | |
399 | return 0; | |
400 | } | |
401 | ||
402 | pHba = (adpt_hba*)cmd->device->host->hostdata[0]; | |
403 | if (!pHba) { | |
404 | return FAILED; | |
405 | } | |
406 | ||
407 | rmb(); | |
408 | /* | |
409 | * TODO: I need to block here if I am processing ioctl cmds | |
410 | * but if the outstanding cmds all finish before the ioctl, | |
411 | * the scsi-core will not know to start sending cmds to me again. | |
412 | * I need to a way to restart the scsi-cores queues or should I block | |
413 | * calling scsi_done on the outstanding cmds instead | |
414 | * for now we don't set the IOCTL state | |
415 | */ | |
416 | if(((pHba->state) & DPTI_STATE_IOCTL) || ((pHba->state) & DPTI_STATE_RESET)) { | |
417 | pHba->host->last_reset = jiffies; | |
418 | pHba->host->resetting = 1; | |
419 | return 1; | |
420 | } | |
421 | ||
422 | if(cmd->eh_state != SCSI_STATE_QUEUED){ | |
423 | // If we are not doing error recovery | |
424 | mod_timer(&cmd->eh_timeout, timeout); | |
425 | } | |
426 | ||
427 | // TODO if the cmd->device if offline then I may need to issue a bus rescan | |
428 | // followed by a get_lct to see if the device is there anymore | |
429 | if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) { | |
430 | /* | |
431 | * First command request for this device. Set up a pointer | |
432 | * to the device structure. This should be a TEST_UNIT_READY | |
433 | * command from scan_scsis_single. | |
434 | */ | |
435 | if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun)) == NULL) { | |
436 | // TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response | |
437 | // with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue. | |
438 | cmd->result = (DID_NO_CONNECT << 16); | |
439 | cmd->scsi_done(cmd); | |
440 | return 0; | |
441 | } | |
442 | cmd->device->hostdata = pDev; | |
443 | } | |
444 | pDev->pScsi_dev = cmd->device; | |
445 | ||
446 | /* | |
447 | * If we are being called from when the device is being reset, | |
448 | * delay processing of the command until later. | |
449 | */ | |
450 | if (pDev->state & DPTI_DEV_RESET ) { | |
451 | return FAILED; | |
452 | } | |
453 | return adpt_scsi_to_i2o(pHba, cmd, pDev); | |
454 | } | |
455 | ||
456 | static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev, | |
457 | sector_t capacity, int geom[]) | |
458 | { | |
459 | int heads=-1; | |
460 | int sectors=-1; | |
461 | int cylinders=-1; | |
462 | ||
463 | // *** First lets set the default geometry **** | |
464 | ||
465 | // If the capacity is less than ox2000 | |
466 | if (capacity < 0x2000 ) { // floppy | |
467 | heads = 18; | |
468 | sectors = 2; | |
469 | } | |
470 | // else if between 0x2000 and 0x20000 | |
471 | else if (capacity < 0x20000) { | |
472 | heads = 64; | |
473 | sectors = 32; | |
474 | } | |
475 | // else if between 0x20000 and 0x40000 | |
476 | else if (capacity < 0x40000) { | |
477 | heads = 65; | |
478 | sectors = 63; | |
479 | } | |
480 | // else if between 0x4000 and 0x80000 | |
481 | else if (capacity < 0x80000) { | |
482 | heads = 128; | |
483 | sectors = 63; | |
484 | } | |
485 | // else if greater than 0x80000 | |
486 | else { | |
487 | heads = 255; | |
488 | sectors = 63; | |
489 | } | |
490 | cylinders = sector_div(capacity, heads * sectors); | |
491 | ||
492 | // Special case if CDROM | |
493 | if(sdev->type == 5) { // CDROM | |
494 | heads = 252; | |
495 | sectors = 63; | |
496 | cylinders = 1111; | |
497 | } | |
498 | ||
499 | geom[0] = heads; | |
500 | geom[1] = sectors; | |
501 | geom[2] = cylinders; | |
502 | ||
503 | PDEBUG("adpt_bios_param: exit\n"); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | ||
508 | static const char *adpt_info(struct Scsi_Host *host) | |
509 | { | |
510 | adpt_hba* pHba; | |
511 | ||
512 | pHba = (adpt_hba *) host->hostdata[0]; | |
513 | return (char *) (pHba->detail); | |
514 | } | |
515 | ||
516 | static int adpt_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, | |
517 | int length, int inout) | |
518 | { | |
519 | struct adpt_device* d; | |
520 | int id; | |
521 | int chan; | |
522 | int len = 0; | |
523 | int begin = 0; | |
524 | int pos = 0; | |
525 | adpt_hba* pHba; | |
526 | int unit; | |
527 | ||
528 | *start = buffer; | |
529 | if (inout == TRUE) { | |
530 | /* | |
531 | * The user has done a write and wants us to take the | |
532 | * data in the buffer and do something with it. | |
533 | * proc_scsiwrite calls us with inout = 1 | |
534 | * | |
535 | * Read data from buffer (writing to us) - NOT SUPPORTED | |
536 | */ | |
537 | return -EINVAL; | |
538 | } | |
539 | ||
540 | /* | |
541 | * inout = 0 means the user has done a read and wants information | |
542 | * returned, so we write information about the cards into the buffer | |
543 | * proc_scsiread() calls us with inout = 0 | |
544 | */ | |
545 | ||
546 | // Find HBA (host bus adapter) we are looking for | |
547 | down(&adpt_configuration_lock); | |
548 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
549 | if (pHba->host == host) { | |
550 | break; /* found adapter */ | |
551 | } | |
552 | } | |
553 | up(&adpt_configuration_lock); | |
554 | if (pHba == NULL) { | |
555 | return 0; | |
556 | } | |
557 | host = pHba->host; | |
558 | ||
559 | len = sprintf(buffer , "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION); | |
560 | len += sprintf(buffer+len, "%s\n", pHba->detail); | |
561 | len += sprintf(buffer+len, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n", | |
562 | pHba->host->host_no, pHba->name, host->irq); | |
563 | len += sprintf(buffer+len, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n", | |
564 | host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize); | |
565 | ||
566 | pos = begin + len; | |
567 | ||
568 | /* CHECKPOINT */ | |
569 | if(pos > offset + length) { | |
570 | goto stop_output; | |
571 | } | |
572 | if(pos <= offset) { | |
573 | /* | |
574 | * If we haven't even written to where we last left | |
575 | * off (the last time we were called), reset the | |
576 | * beginning pointer. | |
577 | */ | |
578 | len = 0; | |
579 | begin = pos; | |
580 | } | |
581 | len += sprintf(buffer+len, "Devices:\n"); | |
582 | for(chan = 0; chan < MAX_CHANNEL; chan++) { | |
583 | for(id = 0; id < MAX_ID; id++) { | |
584 | d = pHba->channel[chan].device[id]; | |
585 | while(d){ | |
586 | len += sprintf(buffer+len,"\t%-24.24s", d->pScsi_dev->vendor); | |
587 | len += sprintf(buffer+len," Rev: %-8.8s\n", d->pScsi_dev->rev); | |
588 | pos = begin + len; | |
589 | ||
590 | ||
591 | /* CHECKPOINT */ | |
592 | if(pos > offset + length) { | |
593 | goto stop_output; | |
594 | } | |
595 | if(pos <= offset) { | |
596 | len = 0; | |
597 | begin = pos; | |
598 | } | |
599 | ||
600 | unit = d->pI2o_dev->lct_data.tid; | |
601 | len += sprintf(buffer+len, "\tTID=%d, (Channel=%d, Target=%d, Lun=%d) (%s)\n\n", | |
602 | unit, (int)d->scsi_channel, (int)d->scsi_id, (int)d->scsi_lun, | |
603 | scsi_device_online(d->pScsi_dev)? "online":"offline"); | |
604 | pos = begin + len; | |
605 | ||
606 | /* CHECKPOINT */ | |
607 | if(pos > offset + length) { | |
608 | goto stop_output; | |
609 | } | |
610 | if(pos <= offset) { | |
611 | len = 0; | |
612 | begin = pos; | |
613 | } | |
614 | ||
615 | d = d->next_lun; | |
616 | } | |
617 | } | |
618 | } | |
619 | ||
620 | /* | |
621 | * begin is where we last checked our position with regards to offset | |
622 | * begin is always less than offset. len is relative to begin. It | |
623 | * is the number of bytes written past begin | |
624 | * | |
625 | */ | |
626 | stop_output: | |
627 | /* stop the output and calculate the correct length */ | |
628 | *(buffer + len) = '\0'; | |
629 | ||
630 | *start = buffer + (offset - begin); /* Start of wanted data */ | |
631 | len -= (offset - begin); | |
632 | if(len > length) { | |
633 | len = length; | |
634 | } else if(len < 0){ | |
635 | len = 0; | |
636 | **start = '\0'; | |
637 | } | |
638 | return len; | |
639 | } | |
640 | ||
641 | ||
642 | /*=========================================================================== | |
643 | * Error Handling routines | |
644 | *=========================================================================== | |
645 | */ | |
646 | ||
647 | static int adpt_abort(struct scsi_cmnd * cmd) | |
648 | { | |
649 | adpt_hba* pHba = NULL; /* host bus adapter structure */ | |
650 | struct adpt_device* dptdevice; /* dpt per device information */ | |
651 | u32 msg[5]; | |
652 | int rcode; | |
653 | ||
654 | if(cmd->serial_number == 0){ | |
655 | return FAILED; | |
656 | } | |
657 | pHba = (adpt_hba*) cmd->device->host->hostdata[0]; | |
658 | printk(KERN_INFO"%s: Trying to Abort cmd=%ld\n",pHba->name, cmd->serial_number); | |
659 | if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) { | |
660 | printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name); | |
661 | return FAILED; | |
662 | } | |
663 | ||
664 | memset(msg, 0, sizeof(msg)); | |
665 | msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0; | |
666 | msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid; | |
667 | msg[2] = 0; | |
668 | msg[3]= 0; | |
669 | msg[4] = (u32)cmd; | |
670 | if( (rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER)) != 0){ | |
671 | if(rcode == -EOPNOTSUPP ){ | |
672 | printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name); | |
673 | return FAILED; | |
674 | } | |
675 | printk(KERN_INFO"%s: Abort cmd=%ld failed.\n",pHba->name, cmd->serial_number); | |
676 | return FAILED; | |
677 | } | |
678 | printk(KERN_INFO"%s: Abort cmd=%ld complete.\n",pHba->name, cmd->serial_number); | |
679 | return SUCCESS; | |
680 | } | |
681 | ||
682 | ||
683 | #define I2O_DEVICE_RESET 0x27 | |
684 | // This is the same for BLK and SCSI devices | |
685 | // NOTE this is wrong in the i2o.h definitions | |
686 | // This is not currently supported by our adapter but we issue it anyway | |
687 | static int adpt_device_reset(struct scsi_cmnd* cmd) | |
688 | { | |
689 | adpt_hba* pHba; | |
690 | u32 msg[4]; | |
691 | u32 rcode; | |
692 | int old_state; | |
693 | struct adpt_device* d = (void*) cmd->device->hostdata; | |
694 | ||
695 | pHba = (void*) cmd->device->host->hostdata[0]; | |
696 | printk(KERN_INFO"%s: Trying to reset device\n",pHba->name); | |
697 | if (!d) { | |
698 | printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name); | |
699 | return FAILED; | |
700 | } | |
701 | memset(msg, 0, sizeof(msg)); | |
702 | msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; | |
703 | msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid); | |
704 | msg[2] = 0; | |
705 | msg[3] = 0; | |
706 | ||
707 | old_state = d->state; | |
708 | d->state |= DPTI_DEV_RESET; | |
709 | if( (rcode = adpt_i2o_post_wait(pHba, (void*)msg,sizeof(msg), FOREVER)) ){ | |
710 | d->state = old_state; | |
711 | if(rcode == -EOPNOTSUPP ){ | |
712 | printk(KERN_INFO"%s: Device reset not supported\n",pHba->name); | |
713 | return FAILED; | |
714 | } | |
715 | printk(KERN_INFO"%s: Device reset failed\n",pHba->name); | |
716 | return FAILED; | |
717 | } else { | |
718 | d->state = old_state; | |
719 | printk(KERN_INFO"%s: Device reset successful\n",pHba->name); | |
720 | return SUCCESS; | |
721 | } | |
722 | } | |
723 | ||
724 | ||
725 | #define I2O_HBA_BUS_RESET 0x87 | |
726 | // This version of bus reset is called by the eh_error handler | |
727 | static int adpt_bus_reset(struct scsi_cmnd* cmd) | |
728 | { | |
729 | adpt_hba* pHba; | |
730 | u32 msg[4]; | |
731 | ||
732 | pHba = (adpt_hba*)cmd->device->host->hostdata[0]; | |
733 | memset(msg, 0, sizeof(msg)); | |
734 | printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid ); | |
735 | msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; | |
736 | msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid); | |
737 | msg[2] = 0; | |
738 | msg[3] = 0; | |
739 | if(adpt_i2o_post_wait(pHba, (void*)msg,sizeof(msg), FOREVER) ){ | |
740 | printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name); | |
741 | return FAILED; | |
742 | } else { | |
743 | printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name); | |
744 | return SUCCESS; | |
745 | } | |
746 | } | |
747 | ||
748 | // This version of reset is called by the eh_error_handler | |
749 | static int adpt_reset(struct scsi_cmnd* cmd) | |
750 | { | |
751 | adpt_hba* pHba; | |
752 | int rcode; | |
753 | pHba = (adpt_hba*)cmd->device->host->hostdata[0]; | |
754 | printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n",pHba->name,cmd->device->channel,pHba->channel[cmd->device->channel].tid ); | |
755 | rcode = adpt_hba_reset(pHba); | |
756 | if(rcode == 0){ | |
757 | printk(KERN_WARNING"%s: HBA reset complete\n",pHba->name); | |
758 | return SUCCESS; | |
759 | } else { | |
760 | printk(KERN_WARNING"%s: HBA reset failed (%x)\n",pHba->name, rcode); | |
761 | return FAILED; | |
762 | } | |
763 | } | |
764 | ||
765 | // This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset | |
766 | static int adpt_hba_reset(adpt_hba* pHba) | |
767 | { | |
768 | int rcode; | |
769 | ||
770 | pHba->state |= DPTI_STATE_RESET; | |
771 | ||
772 | // Activate does get status , init outbound, and get hrt | |
773 | if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) { | |
774 | printk(KERN_ERR "%s: Could not activate\n", pHba->name); | |
775 | adpt_i2o_delete_hba(pHba); | |
776 | return rcode; | |
777 | } | |
778 | ||
779 | if ((rcode=adpt_i2o_build_sys_table()) < 0) { | |
780 | adpt_i2o_delete_hba(pHba); | |
781 | return rcode; | |
782 | } | |
783 | PDEBUG("%s: in HOLD state\n",pHba->name); | |
784 | ||
785 | if ((rcode=adpt_i2o_online_hba(pHba)) < 0) { | |
786 | adpt_i2o_delete_hba(pHba); | |
787 | return rcode; | |
788 | } | |
789 | PDEBUG("%s: in OPERATIONAL state\n",pHba->name); | |
790 | ||
791 | if ((rcode=adpt_i2o_lct_get(pHba)) < 0){ | |
792 | adpt_i2o_delete_hba(pHba); | |
793 | return rcode; | |
794 | } | |
795 | ||
796 | if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){ | |
797 | adpt_i2o_delete_hba(pHba); | |
798 | return rcode; | |
799 | } | |
800 | pHba->state &= ~DPTI_STATE_RESET; | |
801 | ||
802 | adpt_fail_posted_scbs(pHba); | |
803 | return 0; /* return success */ | |
804 | } | |
805 | ||
806 | /*=========================================================================== | |
807 | * | |
808 | *=========================================================================== | |
809 | */ | |
810 | ||
811 | ||
812 | static void adpt_i2o_sys_shutdown(void) | |
813 | { | |
814 | adpt_hba *pHba, *pNext; | |
815 | struct adpt_i2o_post_wait_data *p1, *p2; | |
816 | ||
817 | printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n"); | |
818 | printk(KERN_INFO" This could take a few minutes if there are many devices attached\n"); | |
819 | /* Delete all IOPs from the controller chain */ | |
820 | /* They should have already been released by the | |
821 | * scsi-core | |
822 | */ | |
823 | for (pHba = hba_chain; pHba; pHba = pNext) { | |
824 | pNext = pHba->next; | |
825 | adpt_i2o_delete_hba(pHba); | |
826 | } | |
827 | ||
828 | /* Remove any timedout entries from the wait queue. */ | |
829 | p2 = NULL; | |
830 | // spin_lock_irqsave(&adpt_post_wait_lock, flags); | |
831 | /* Nothing should be outstanding at this point so just | |
832 | * free them | |
833 | */ | |
834 | for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p2->next) { | |
835 | kfree(p1); | |
836 | } | |
837 | // spin_unlock_irqrestore(&adpt_post_wait_lock, flags); | |
838 | adpt_post_wait_queue = NULL; | |
839 | ||
840 | printk(KERN_INFO "Adaptec I2O controllers down.\n"); | |
841 | } | |
842 | ||
843 | /* | |
844 | * reboot/shutdown notification. | |
845 | * | |
846 | * - Quiesce each IOP in the system | |
847 | * | |
848 | */ | |
849 | ||
850 | #ifdef REBOOT_NOTIFIER | |
851 | static int adpt_reboot_event(struct notifier_block *n, ulong code, void *p) | |
852 | { | |
853 | ||
854 | if(code != SYS_RESTART && code != SYS_HALT && code != SYS_POWER_OFF) | |
855 | return NOTIFY_DONE; | |
856 | ||
857 | adpt_i2o_sys_shutdown(); | |
858 | ||
859 | return NOTIFY_DONE; | |
860 | } | |
861 | #endif | |
862 | ||
863 | ||
864 | static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) | |
865 | { | |
866 | ||
867 | adpt_hba* pHba = NULL; | |
868 | adpt_hba* p = NULL; | |
869 | ulong base_addr0_phys = 0; | |
870 | ulong base_addr1_phys = 0; | |
871 | u32 hba_map0_area_size = 0; | |
872 | u32 hba_map1_area_size = 0; | |
873 | void __iomem *base_addr_virt = NULL; | |
874 | void __iomem *msg_addr_virt = NULL; | |
875 | ||
876 | int raptorFlag = FALSE; | |
1da177e4 LT |
877 | |
878 | if(pci_enable_device(pDev)) { | |
879 | return -EINVAL; | |
880 | } | |
881 | pci_set_master(pDev); | |
882 | if (pci_set_dma_mask(pDev, 0xffffffffffffffffULL) && | |
883 | pci_set_dma_mask(pDev, 0xffffffffULL)) | |
884 | return -EINVAL; | |
885 | ||
886 | base_addr0_phys = pci_resource_start(pDev,0); | |
887 | hba_map0_area_size = pci_resource_len(pDev,0); | |
888 | ||
889 | // Check if standard PCI card or single BAR Raptor | |
890 | if(pDev->device == PCI_DPT_DEVICE_ID){ | |
891 | if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){ | |
892 | // Raptor card with this device id needs 4M | |
893 | hba_map0_area_size = 0x400000; | |
894 | } else { // Not Raptor - it is a PCI card | |
895 | if(hba_map0_area_size > 0x100000 ){ | |
896 | hba_map0_area_size = 0x100000; | |
897 | } | |
898 | } | |
899 | } else {// Raptor split BAR config | |
900 | // Use BAR1 in this configuration | |
901 | base_addr1_phys = pci_resource_start(pDev,1); | |
902 | hba_map1_area_size = pci_resource_len(pDev,1); | |
903 | raptorFlag = TRUE; | |
904 | } | |
905 | ||
906 | ||
907 | base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size); | |
908 | if (!base_addr_virt) { | |
909 | PERROR("dpti: adpt_config_hba: io remap failed\n"); | |
910 | return -EINVAL; | |
911 | } | |
912 | ||
913 | if(raptorFlag == TRUE) { | |
914 | msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size ); | |
915 | if (!msg_addr_virt) { | |
916 | PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n"); | |
917 | iounmap(base_addr_virt); | |
918 | return -EINVAL; | |
919 | } | |
920 | } else { | |
921 | msg_addr_virt = base_addr_virt; | |
922 | } | |
923 | ||
924 | // Allocate and zero the data structure | |
925 | pHba = kmalloc(sizeof(adpt_hba), GFP_KERNEL); | |
926 | if( pHba == NULL) { | |
927 | if(msg_addr_virt != base_addr_virt){ | |
928 | iounmap(msg_addr_virt); | |
929 | } | |
930 | iounmap(base_addr_virt); | |
931 | return -ENOMEM; | |
932 | } | |
933 | memset(pHba, 0, sizeof(adpt_hba)); | |
934 | ||
935 | down(&adpt_configuration_lock); | |
1da177e4 LT |
936 | |
937 | if(hba_chain != NULL){ | |
938 | for(p = hba_chain; p->next; p = p->next); | |
939 | p->next = pHba; | |
940 | } else { | |
941 | hba_chain = pHba; | |
942 | } | |
943 | pHba->next = NULL; | |
944 | pHba->unit = hba_count; | |
23a2bc22 | 945 | sprintf(pHba->name, "dpti%d", hba_count); |
1da177e4 LT |
946 | hba_count++; |
947 | ||
948 | up(&adpt_configuration_lock); | |
949 | ||
950 | pHba->pDev = pDev; | |
951 | pHba->base_addr_phys = base_addr0_phys; | |
952 | ||
953 | // Set up the Virtual Base Address of the I2O Device | |
954 | pHba->base_addr_virt = base_addr_virt; | |
955 | pHba->msg_addr_virt = msg_addr_virt; | |
956 | pHba->irq_mask = base_addr_virt+0x30; | |
957 | pHba->post_port = base_addr_virt+0x40; | |
958 | pHba->reply_port = base_addr_virt+0x44; | |
959 | ||
960 | pHba->hrt = NULL; | |
961 | pHba->lct = NULL; | |
962 | pHba->lct_size = 0; | |
963 | pHba->status_block = NULL; | |
964 | pHba->post_count = 0; | |
965 | pHba->state = DPTI_STATE_RESET; | |
966 | pHba->pDev = pDev; | |
967 | pHba->devices = NULL; | |
968 | ||
969 | // Initializing the spinlocks | |
970 | spin_lock_init(&pHba->state_lock); | |
971 | spin_lock_init(&adpt_post_wait_lock); | |
972 | ||
973 | if(raptorFlag == 0){ | |
974 | printk(KERN_INFO"Adaptec I2O RAID controller %d at %p size=%x irq=%d\n", | |
975 | hba_count-1, base_addr_virt, hba_map0_area_size, pDev->irq); | |
976 | } else { | |
977 | printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d\n",hba_count-1, pDev->irq); | |
978 | printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size); | |
979 | printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size); | |
980 | } | |
981 | ||
982 | if (request_irq (pDev->irq, adpt_isr, SA_SHIRQ, pHba->name, pHba)) { | |
983 | printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq); | |
984 | adpt_i2o_delete_hba(pHba); | |
985 | return -EINVAL; | |
986 | } | |
987 | ||
988 | return 0; | |
989 | } | |
990 | ||
991 | ||
992 | static void adpt_i2o_delete_hba(adpt_hba* pHba) | |
993 | { | |
994 | adpt_hba* p1; | |
995 | adpt_hba* p2; | |
996 | struct i2o_device* d; | |
997 | struct i2o_device* next; | |
998 | int i; | |
999 | int j; | |
1000 | struct adpt_device* pDev; | |
1001 | struct adpt_device* pNext; | |
1002 | ||
1003 | ||
1004 | down(&adpt_configuration_lock); | |
1005 | // scsi_unregister calls our adpt_release which | |
1006 | // does a quiese | |
1007 | if(pHba->host){ | |
1008 | free_irq(pHba->host->irq, pHba); | |
1009 | } | |
1da177e4 LT |
1010 | p2 = NULL; |
1011 | for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){ | |
1012 | if(p1 == pHba) { | |
1013 | if(p2) { | |
1014 | p2->next = p1->next; | |
1015 | } else { | |
1016 | hba_chain = p1->next; | |
1017 | } | |
1018 | break; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | hba_count--; | |
1023 | up(&adpt_configuration_lock); | |
1024 | ||
1025 | iounmap(pHba->base_addr_virt); | |
1026 | if(pHba->msg_addr_virt != pHba->base_addr_virt){ | |
1027 | iounmap(pHba->msg_addr_virt); | |
1028 | } | |
1029 | if(pHba->hrt) { | |
1030 | kfree(pHba->hrt); | |
1031 | } | |
1032 | if(pHba->lct){ | |
1033 | kfree(pHba->lct); | |
1034 | } | |
1035 | if(pHba->status_block) { | |
1036 | kfree(pHba->status_block); | |
1037 | } | |
1038 | if(pHba->reply_pool){ | |
1039 | kfree(pHba->reply_pool); | |
1040 | } | |
1041 | ||
1042 | for(d = pHba->devices; d ; d = next){ | |
1043 | next = d->next; | |
1044 | kfree(d); | |
1045 | } | |
1046 | for(i = 0 ; i < pHba->top_scsi_channel ; i++){ | |
1047 | for(j = 0; j < MAX_ID; j++){ | |
1048 | if(pHba->channel[i].device[j] != NULL){ | |
1049 | for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){ | |
1050 | pNext = pDev->next_lun; | |
1051 | kfree(pDev); | |
1052 | } | |
1053 | } | |
1054 | } | |
1055 | } | |
1056 | kfree(pHba); | |
1057 | ||
1058 | if(hba_count <= 0){ | |
1059 | unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER); | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | ||
1064 | static int adpt_init(void) | |
1065 | { | |
1da177e4 | 1066 | printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n"); |
1da177e4 LT |
1067 | #ifdef REBOOT_NOTIFIER |
1068 | register_reboot_notifier(&adpt_reboot_notifier); | |
1069 | #endif | |
1070 | ||
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | ||
1075 | static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun) | |
1076 | { | |
1077 | struct adpt_device* d; | |
1078 | ||
1079 | if(chan < 0 || chan >= MAX_CHANNEL) | |
1080 | return NULL; | |
1081 | ||
1082 | if( pHba->channel[chan].device == NULL){ | |
1083 | printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n"); | |
1084 | return NULL; | |
1085 | } | |
1086 | ||
1087 | d = pHba->channel[chan].device[id]; | |
1088 | if(!d || d->tid == 0) { | |
1089 | return NULL; | |
1090 | } | |
1091 | ||
1092 | /* If it is the only lun at that address then this should match*/ | |
1093 | if(d->scsi_lun == lun){ | |
1094 | return d; | |
1095 | } | |
1096 | ||
1097 | /* else we need to look through all the luns */ | |
1098 | for(d=d->next_lun ; d ; d = d->next_lun){ | |
1099 | if(d->scsi_lun == lun){ | |
1100 | return d; | |
1101 | } | |
1102 | } | |
1103 | return NULL; | |
1104 | } | |
1105 | ||
1106 | ||
1107 | static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout) | |
1108 | { | |
1109 | // I used my own version of the WAIT_QUEUE_HEAD | |
1110 | // to handle some version differences | |
1111 | // When embedded in the kernel this could go back to the vanilla one | |
1112 | ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post); | |
1113 | int status = 0; | |
1114 | ulong flags = 0; | |
1115 | struct adpt_i2o_post_wait_data *p1, *p2; | |
1116 | struct adpt_i2o_post_wait_data *wait_data = | |
1117 | kmalloc(sizeof(struct adpt_i2o_post_wait_data),GFP_KERNEL); | |
1118 | adpt_wait_queue_t wait; | |
1119 | ||
1120 | if(!wait_data){ | |
1121 | return -ENOMEM; | |
1122 | } | |
1123 | /* | |
1124 | * The spin locking is needed to keep anyone from playing | |
1125 | * with the queue pointers and id while we do the same | |
1126 | */ | |
1127 | spin_lock_irqsave(&adpt_post_wait_lock, flags); | |
1128 | // TODO we need a MORE unique way of getting ids | |
1129 | // to support async LCT get | |
1130 | wait_data->next = adpt_post_wait_queue; | |
1131 | adpt_post_wait_queue = wait_data; | |
1132 | adpt_post_wait_id++; | |
1133 | adpt_post_wait_id &= 0x7fff; | |
1134 | wait_data->id = adpt_post_wait_id; | |
1135 | spin_unlock_irqrestore(&adpt_post_wait_lock, flags); | |
1136 | ||
1137 | wait_data->wq = &adpt_wq_i2o_post; | |
1138 | wait_data->status = -ETIMEDOUT; | |
1139 | ||
1140 | // this code is taken from kernel/sched.c:interruptible_sleep_on_timeout | |
1141 | wait.task = current; | |
1142 | init_waitqueue_entry(&wait, current); | |
1143 | spin_lock_irqsave(&adpt_wq_i2o_post.lock, flags); | |
1144 | __add_wait_queue(&adpt_wq_i2o_post, &wait); | |
1145 | spin_unlock(&adpt_wq_i2o_post.lock); | |
1146 | ||
1147 | msg[2] |= 0x80000000 | ((u32)wait_data->id); | |
1148 | timeout *= HZ; | |
1149 | if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){ | |
1150 | set_current_state(TASK_INTERRUPTIBLE); | |
1151 | if(pHba->host) | |
1152 | spin_unlock_irq(pHba->host->host_lock); | |
1153 | if (!timeout) | |
1154 | schedule(); | |
1155 | else{ | |
1156 | timeout = schedule_timeout(timeout); | |
1157 | if (timeout == 0) { | |
1158 | // I/O issued, but cannot get result in | |
1159 | // specified time. Freeing resorces is | |
1160 | // dangerous. | |
1161 | status = -ETIME; | |
1162 | } | |
1163 | } | |
1164 | if(pHba->host) | |
1165 | spin_lock_irq(pHba->host->host_lock); | |
1166 | } | |
1167 | spin_lock_irq(&adpt_wq_i2o_post.lock); | |
1168 | __remove_wait_queue(&adpt_wq_i2o_post, &wait); | |
1169 | spin_unlock_irqrestore(&adpt_wq_i2o_post.lock, flags); | |
1170 | ||
1171 | if(status == -ETIMEDOUT){ | |
1172 | printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit); | |
1173 | // We will have to free the wait_data memory during shutdown | |
1174 | return status; | |
1175 | } | |
1176 | ||
1177 | /* Remove the entry from the queue. */ | |
1178 | p2 = NULL; | |
1179 | spin_lock_irqsave(&adpt_post_wait_lock, flags); | |
1180 | for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) { | |
1181 | if(p1 == wait_data) { | |
1182 | if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) { | |
1183 | status = -EOPNOTSUPP; | |
1184 | } | |
1185 | if(p2) { | |
1186 | p2->next = p1->next; | |
1187 | } else { | |
1188 | adpt_post_wait_queue = p1->next; | |
1189 | } | |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | spin_unlock_irqrestore(&adpt_post_wait_lock, flags); | |
1194 | ||
1195 | kfree(wait_data); | |
1196 | ||
1197 | return status; | |
1198 | } | |
1199 | ||
1200 | ||
1201 | static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len) | |
1202 | { | |
1203 | ||
1204 | u32 m = EMPTY_QUEUE; | |
1205 | u32 __iomem *msg; | |
1206 | ulong timeout = jiffies + 30*HZ; | |
1207 | do { | |
1208 | rmb(); | |
1209 | m = readl(pHba->post_port); | |
1210 | if (m != EMPTY_QUEUE) { | |
1211 | break; | |
1212 | } | |
1213 | if(time_after(jiffies,timeout)){ | |
1214 | printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit); | |
1215 | return -ETIMEDOUT; | |
1216 | } | |
1217 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1218 | schedule_timeout(1); | |
1219 | } while(m == EMPTY_QUEUE); | |
1220 | ||
1221 | msg = pHba->msg_addr_virt + m; | |
1222 | memcpy_toio(msg, data, len); | |
1223 | wmb(); | |
1224 | ||
1225 | //post message | |
1226 | writel(m, pHba->post_port); | |
1227 | wmb(); | |
1228 | ||
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | ||
1233 | static void adpt_i2o_post_wait_complete(u32 context, int status) | |
1234 | { | |
1235 | struct adpt_i2o_post_wait_data *p1 = NULL; | |
1236 | /* | |
1237 | * We need to search through the adpt_post_wait | |
1238 | * queue to see if the given message is still | |
1239 | * outstanding. If not, it means that the IOP | |
1240 | * took longer to respond to the message than we | |
1241 | * had allowed and timer has already expired. | |
1242 | * Not much we can do about that except log | |
1243 | * it for debug purposes, increase timeout, and recompile | |
1244 | * | |
1245 | * Lock needed to keep anyone from moving queue pointers | |
1246 | * around while we're looking through them. | |
1247 | */ | |
1248 | ||
1249 | context &= 0x7fff; | |
1250 | ||
1251 | spin_lock(&adpt_post_wait_lock); | |
1252 | for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { | |
1253 | if(p1->id == context) { | |
1254 | p1->status = status; | |
1255 | spin_unlock(&adpt_post_wait_lock); | |
1256 | wake_up_interruptible(p1->wq); | |
1257 | return; | |
1258 | } | |
1259 | } | |
1260 | spin_unlock(&adpt_post_wait_lock); | |
1261 | // If this happens we lose commands that probably really completed | |
1262 | printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context); | |
1263 | printk(KERN_DEBUG" Tasks in wait queue:\n"); | |
1264 | for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { | |
1265 | printk(KERN_DEBUG" %d\n",p1->id); | |
1266 | } | |
1267 | return; | |
1268 | } | |
1269 | ||
1270 | static s32 adpt_i2o_reset_hba(adpt_hba* pHba) | |
1271 | { | |
1272 | u32 msg[8]; | |
1273 | u8* status; | |
1274 | u32 m = EMPTY_QUEUE ; | |
1275 | ulong timeout = jiffies + (TMOUT_IOPRESET*HZ); | |
1276 | ||
1277 | if(pHba->initialized == FALSE) { // First time reset should be quick | |
1278 | timeout = jiffies + (25*HZ); | |
1279 | } else { | |
1280 | adpt_i2o_quiesce_hba(pHba); | |
1281 | } | |
1282 | ||
1283 | do { | |
1284 | rmb(); | |
1285 | m = readl(pHba->post_port); | |
1286 | if (m != EMPTY_QUEUE) { | |
1287 | break; | |
1288 | } | |
1289 | if(time_after(jiffies,timeout)){ | |
1290 | printk(KERN_WARNING"Timeout waiting for message!\n"); | |
1291 | return -ETIMEDOUT; | |
1292 | } | |
1293 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1294 | schedule_timeout(1); | |
1295 | } while (m == EMPTY_QUEUE); | |
1296 | ||
1297 | status = (u8*)kmalloc(4, GFP_KERNEL|ADDR32); | |
1298 | if(status == NULL) { | |
1299 | adpt_send_nop(pHba, m); | |
1300 | printk(KERN_ERR"IOP reset failed - no free memory.\n"); | |
1301 | return -ENOMEM; | |
1302 | } | |
1303 | memset(status,0,4); | |
1304 | ||
1305 | msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0; | |
1306 | msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID; | |
1307 | msg[2]=0; | |
1308 | msg[3]=0; | |
1309 | msg[4]=0; | |
1310 | msg[5]=0; | |
1311 | msg[6]=virt_to_bus(status); | |
1312 | msg[7]=0; | |
1313 | ||
1314 | memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg)); | |
1315 | wmb(); | |
1316 | writel(m, pHba->post_port); | |
1317 | wmb(); | |
1318 | ||
1319 | while(*status == 0){ | |
1320 | if(time_after(jiffies,timeout)){ | |
1321 | printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name); | |
1322 | kfree(status); | |
1323 | return -ETIMEDOUT; | |
1324 | } | |
1325 | rmb(); | |
1326 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1327 | schedule_timeout(1); | |
1328 | } | |
1329 | ||
1330 | if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) { | |
1331 | PDEBUG("%s: Reset in progress...\n", pHba->name); | |
1332 | // Here we wait for message frame to become available | |
1333 | // indicated that reset has finished | |
1334 | do { | |
1335 | rmb(); | |
1336 | m = readl(pHba->post_port); | |
1337 | if (m != EMPTY_QUEUE) { | |
1338 | break; | |
1339 | } | |
1340 | if(time_after(jiffies,timeout)){ | |
1341 | printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name); | |
1342 | return -ETIMEDOUT; | |
1343 | } | |
1344 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1345 | schedule_timeout(1); | |
1346 | } while (m == EMPTY_QUEUE); | |
1347 | // Flush the offset | |
1348 | adpt_send_nop(pHba, m); | |
1349 | } | |
1350 | adpt_i2o_status_get(pHba); | |
1351 | if(*status == 0x02 || | |
1352 | pHba->status_block->iop_state != ADAPTER_STATE_RESET) { | |
1353 | printk(KERN_WARNING"%s: Reset reject, trying to clear\n", | |
1354 | pHba->name); | |
1355 | } else { | |
1356 | PDEBUG("%s: Reset completed.\n", pHba->name); | |
1357 | } | |
1358 | ||
1359 | kfree(status); | |
1360 | #ifdef UARTDELAY | |
1361 | // This delay is to allow someone attached to the card through the debug UART to | |
1362 | // set up the dump levels that they want before the rest of the initialization sequence | |
1363 | adpt_delay(20000); | |
1364 | #endif | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | ||
1369 | static int adpt_i2o_parse_lct(adpt_hba* pHba) | |
1370 | { | |
1371 | int i; | |
1372 | int max; | |
1373 | int tid; | |
1374 | struct i2o_device *d; | |
1375 | i2o_lct *lct = pHba->lct; | |
1376 | u8 bus_no = 0; | |
1377 | s16 scsi_id; | |
1378 | s16 scsi_lun; | |
1379 | u32 buf[10]; // larger than 7, or 8 ... | |
1380 | struct adpt_device* pDev; | |
1381 | ||
1382 | if (lct == NULL) { | |
1383 | printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); | |
1384 | return -1; | |
1385 | } | |
1386 | ||
1387 | max = lct->table_size; | |
1388 | max -= 3; | |
1389 | max /= 9; | |
1390 | ||
1391 | for(i=0;i<max;i++) { | |
1392 | if( lct->lct_entry[i].user_tid != 0xfff){ | |
1393 | /* | |
1394 | * If we have hidden devices, we need to inform the upper layers about | |
1395 | * the possible maximum id reference to handle device access when | |
1396 | * an array is disassembled. This code has no other purpose but to | |
1397 | * allow us future access to devices that are currently hidden | |
1398 | * behind arrays, hotspares or have not been configured (JBOD mode). | |
1399 | */ | |
1400 | if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE && | |
1401 | lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL && | |
1402 | lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ | |
1403 | continue; | |
1404 | } | |
1405 | tid = lct->lct_entry[i].tid; | |
1406 | // I2O_DPT_DEVICE_INFO_GROUP_NO; | |
1407 | if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { | |
1408 | continue; | |
1409 | } | |
1410 | bus_no = buf[0]>>16; | |
1411 | scsi_id = buf[1]; | |
1412 | scsi_lun = (buf[2]>>8 )&0xff; | |
1413 | if(bus_no >= MAX_CHANNEL) { // Something wrong skip it | |
1414 | printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no); | |
1415 | continue; | |
1416 | } | |
1417 | if (scsi_id >= MAX_ID){ | |
1418 | printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no); | |
1419 | continue; | |
1420 | } | |
1421 | if(bus_no > pHba->top_scsi_channel){ | |
1422 | pHba->top_scsi_channel = bus_no; | |
1423 | } | |
1424 | if(scsi_id > pHba->top_scsi_id){ | |
1425 | pHba->top_scsi_id = scsi_id; | |
1426 | } | |
1427 | if(scsi_lun > pHba->top_scsi_lun){ | |
1428 | pHba->top_scsi_lun = scsi_lun; | |
1429 | } | |
1430 | continue; | |
1431 | } | |
1432 | d = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL); | |
1433 | if(d==NULL) | |
1434 | { | |
1435 | printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name); | |
1436 | return -ENOMEM; | |
1437 | } | |
1438 | ||
1439 | d->controller = (void*)pHba; | |
1440 | d->next = NULL; | |
1441 | ||
1442 | memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); | |
1443 | ||
1444 | d->flags = 0; | |
1445 | tid = d->lct_data.tid; | |
1446 | adpt_i2o_report_hba_unit(pHba, d); | |
1447 | adpt_i2o_install_device(pHba, d); | |
1448 | } | |
1449 | bus_no = 0; | |
1450 | for(d = pHba->devices; d ; d = d->next) { | |
1451 | if(d->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT || | |
1452 | d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PORT){ | |
1453 | tid = d->lct_data.tid; | |
1454 | // TODO get the bus_no from hrt-but for now they are in order | |
1455 | //bus_no = | |
1456 | if(bus_no > pHba->top_scsi_channel){ | |
1457 | pHba->top_scsi_channel = bus_no; | |
1458 | } | |
1459 | pHba->channel[bus_no].type = d->lct_data.class_id; | |
1460 | pHba->channel[bus_no].tid = tid; | |
1461 | if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0) | |
1462 | { | |
1463 | pHba->channel[bus_no].scsi_id = buf[1]; | |
1464 | PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]); | |
1465 | } | |
1466 | // TODO remove - this is just until we get from hrt | |
1467 | bus_no++; | |
1468 | if(bus_no >= MAX_CHANNEL) { // Something wrong skip it | |
1469 | printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no); | |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | // Setup adpt_device table | |
1476 | for(d = pHba->devices; d ; d = d->next) { | |
1477 | if(d->lct_data.class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || | |
1478 | d->lct_data.class_id == I2O_CLASS_SCSI_PERIPHERAL || | |
1479 | d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ | |
1480 | ||
1481 | tid = d->lct_data.tid; | |
1482 | scsi_id = -1; | |
1483 | // I2O_DPT_DEVICE_INFO_GROUP_NO; | |
1484 | if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) { | |
1485 | bus_no = buf[0]>>16; | |
1486 | scsi_id = buf[1]; | |
1487 | scsi_lun = (buf[2]>>8 )&0xff; | |
1488 | if(bus_no >= MAX_CHANNEL) { // Something wrong skip it | |
1489 | continue; | |
1490 | } | |
1491 | if (scsi_id >= MAX_ID) { | |
1492 | continue; | |
1493 | } | |
1494 | if( pHba->channel[bus_no].device[scsi_id] == NULL){ | |
1495 | pDev = kmalloc(sizeof(struct adpt_device),GFP_KERNEL); | |
1496 | if(pDev == NULL) { | |
1497 | return -ENOMEM; | |
1498 | } | |
1499 | pHba->channel[bus_no].device[scsi_id] = pDev; | |
1500 | memset(pDev,0,sizeof(struct adpt_device)); | |
1501 | } else { | |
1502 | for( pDev = pHba->channel[bus_no].device[scsi_id]; | |
1503 | pDev->next_lun; pDev = pDev->next_lun){ | |
1504 | } | |
1505 | pDev->next_lun = kmalloc(sizeof(struct adpt_device),GFP_KERNEL); | |
1506 | if(pDev->next_lun == NULL) { | |
1507 | return -ENOMEM; | |
1508 | } | |
1509 | memset(pDev->next_lun,0,sizeof(struct adpt_device)); | |
1510 | pDev = pDev->next_lun; | |
1511 | } | |
1512 | pDev->tid = tid; | |
1513 | pDev->scsi_channel = bus_no; | |
1514 | pDev->scsi_id = scsi_id; | |
1515 | pDev->scsi_lun = scsi_lun; | |
1516 | pDev->pI2o_dev = d; | |
1517 | d->owner = pDev; | |
1518 | pDev->type = (buf[0])&0xff; | |
1519 | pDev->flags = (buf[0]>>8)&0xff; | |
1520 | if(scsi_id > pHba->top_scsi_id){ | |
1521 | pHba->top_scsi_id = scsi_id; | |
1522 | } | |
1523 | if(scsi_lun > pHba->top_scsi_lun){ | |
1524 | pHba->top_scsi_lun = scsi_lun; | |
1525 | } | |
1526 | } | |
1527 | if(scsi_id == -1){ | |
1528 | printk(KERN_WARNING"Could not find SCSI ID for %s\n", | |
1529 | d->lct_data.identity_tag); | |
1530 | } | |
1531 | } | |
1532 | } | |
1533 | return 0; | |
1534 | } | |
1535 | ||
1536 | ||
1537 | /* | |
1538 | * Each I2O controller has a chain of devices on it - these match | |
1539 | * the useful parts of the LCT of the board. | |
1540 | */ | |
1541 | ||
1542 | static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d) | |
1543 | { | |
1544 | down(&adpt_configuration_lock); | |
1545 | d->controller=pHba; | |
1546 | d->owner=NULL; | |
1547 | d->next=pHba->devices; | |
1548 | d->prev=NULL; | |
1549 | if (pHba->devices != NULL){ | |
1550 | pHba->devices->prev=d; | |
1551 | } | |
1552 | pHba->devices=d; | |
1553 | *d->dev_name = 0; | |
1554 | ||
1555 | up(&adpt_configuration_lock); | |
1556 | return 0; | |
1557 | } | |
1558 | ||
1559 | static int adpt_open(struct inode *inode, struct file *file) | |
1560 | { | |
1561 | int minor; | |
1562 | adpt_hba* pHba; | |
1563 | ||
1564 | //TODO check for root access | |
1565 | // | |
1566 | minor = iminor(inode); | |
1567 | if (minor >= hba_count) { | |
1568 | return -ENXIO; | |
1569 | } | |
1570 | down(&adpt_configuration_lock); | |
1571 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
1572 | if (pHba->unit == minor) { | |
1573 | break; /* found adapter */ | |
1574 | } | |
1575 | } | |
1576 | if (pHba == NULL) { | |
1577 | up(&adpt_configuration_lock); | |
1578 | return -ENXIO; | |
1579 | } | |
1580 | ||
1581 | // if(pHba->in_use){ | |
1582 | // up(&adpt_configuration_lock); | |
1583 | // return -EBUSY; | |
1584 | // } | |
1585 | ||
1586 | pHba->in_use = 1; | |
1587 | up(&adpt_configuration_lock); | |
1588 | ||
1589 | return 0; | |
1590 | } | |
1591 | ||
1592 | static int adpt_close(struct inode *inode, struct file *file) | |
1593 | { | |
1594 | int minor; | |
1595 | adpt_hba* pHba; | |
1596 | ||
1597 | minor = iminor(inode); | |
1598 | if (minor >= hba_count) { | |
1599 | return -ENXIO; | |
1600 | } | |
1601 | down(&adpt_configuration_lock); | |
1602 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
1603 | if (pHba->unit == minor) { | |
1604 | break; /* found adapter */ | |
1605 | } | |
1606 | } | |
1607 | up(&adpt_configuration_lock); | |
1608 | if (pHba == NULL) { | |
1609 | return -ENXIO; | |
1610 | } | |
1611 | ||
1612 | pHba->in_use = 0; | |
1613 | ||
1614 | return 0; | |
1615 | } | |
1616 | ||
1617 | ||
1618 | static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg) | |
1619 | { | |
1620 | u32 msg[MAX_MESSAGE_SIZE]; | |
1621 | u32* reply = NULL; | |
1622 | u32 size = 0; | |
1623 | u32 reply_size = 0; | |
1624 | u32 __user *user_msg = arg; | |
1625 | u32 __user * user_reply = NULL; | |
1626 | void *sg_list[pHba->sg_tablesize]; | |
1627 | u32 sg_offset = 0; | |
1628 | u32 sg_count = 0; | |
1629 | int sg_index = 0; | |
1630 | u32 i = 0; | |
1631 | u32 rcode = 0; | |
1632 | void *p = NULL; | |
1633 | ulong flags = 0; | |
1634 | ||
1635 | memset(&msg, 0, MAX_MESSAGE_SIZE*4); | |
1636 | // get user msg size in u32s | |
1637 | if(get_user(size, &user_msg[0])){ | |
1638 | return -EFAULT; | |
1639 | } | |
1640 | size = size>>16; | |
1641 | ||
1642 | user_reply = &user_msg[size]; | |
1643 | if(size > MAX_MESSAGE_SIZE){ | |
1644 | return -EFAULT; | |
1645 | } | |
1646 | size *= 4; // Convert to bytes | |
1647 | ||
1648 | /* Copy in the user's I2O command */ | |
1649 | if(copy_from_user(msg, user_msg, size)) { | |
1650 | return -EFAULT; | |
1651 | } | |
1652 | get_user(reply_size, &user_reply[0]); | |
1653 | reply_size = reply_size>>16; | |
1654 | if(reply_size > REPLY_FRAME_SIZE){ | |
1655 | reply_size = REPLY_FRAME_SIZE; | |
1656 | } | |
1657 | reply_size *= 4; | |
1658 | reply = kmalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL); | |
1659 | if(reply == NULL) { | |
1660 | printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name); | |
1661 | return -ENOMEM; | |
1662 | } | |
1663 | memset(reply,0,REPLY_FRAME_SIZE*4); | |
1664 | sg_offset = (msg[0]>>4)&0xf; | |
1665 | msg[2] = 0x40000000; // IOCTL context | |
1666 | msg[3] = (u32)reply; | |
1667 | memset(sg_list,0, sizeof(sg_list[0])*pHba->sg_tablesize); | |
1668 | if(sg_offset) { | |
1669 | // TODO 64bit fix | |
1670 | struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset); | |
1671 | sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); | |
1672 | if (sg_count > pHba->sg_tablesize){ | |
1673 | printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count); | |
1674 | kfree (reply); | |
1675 | return -EINVAL; | |
1676 | } | |
1677 | ||
1678 | for(i = 0; i < sg_count; i++) { | |
1679 | int sg_size; | |
1680 | ||
1681 | if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) { | |
1682 | printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count); | |
1683 | rcode = -EINVAL; | |
1684 | goto cleanup; | |
1685 | } | |
1686 | sg_size = sg[i].flag_count & 0xffffff; | |
1687 | /* Allocate memory for the transfer */ | |
1688 | p = kmalloc(sg_size, GFP_KERNEL|ADDR32); | |
1689 | if(!p) { | |
1690 | printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
1691 | pHba->name,sg_size,i,sg_count); | |
1692 | rcode = -ENOMEM; | |
1693 | goto cleanup; | |
1694 | } | |
1695 | sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame. | |
1696 | /* Copy in the user's SG buffer if necessary */ | |
1697 | if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) { | |
1698 | // TODO 64bit fix | |
1699 | if (copy_from_user(p,(void __user *)sg[i].addr_bus, sg_size)) { | |
1700 | printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i); | |
1701 | rcode = -EFAULT; | |
1702 | goto cleanup; | |
1703 | } | |
1704 | } | |
1705 | //TODO 64bit fix | |
1706 | sg[i].addr_bus = (u32)virt_to_bus(p); | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | do { | |
1711 | if(pHba->host) | |
1712 | spin_lock_irqsave(pHba->host->host_lock, flags); | |
1713 | // This state stops any new commands from enterring the | |
1714 | // controller while processing the ioctl | |
1715 | // pHba->state |= DPTI_STATE_IOCTL; | |
1716 | // We can't set this now - The scsi subsystem sets host_blocked and | |
1717 | // the queue empties and stops. We need a way to restart the queue | |
1718 | rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER); | |
1719 | if (rcode != 0) | |
1720 | printk("adpt_i2o_passthru: post wait failed %d %p\n", | |
1721 | rcode, reply); | |
1722 | // pHba->state &= ~DPTI_STATE_IOCTL; | |
1723 | if(pHba->host) | |
1724 | spin_unlock_irqrestore(pHba->host->host_lock, flags); | |
1725 | } while(rcode == -ETIMEDOUT); | |
1726 | ||
1727 | if(rcode){ | |
1728 | goto cleanup; | |
1729 | } | |
1730 | ||
1731 | if(sg_offset) { | |
1732 | /* Copy back the Scatter Gather buffers back to user space */ | |
1733 | u32 j; | |
1734 | // TODO 64bit fix | |
1735 | struct sg_simple_element* sg; | |
1736 | int sg_size; | |
1737 | ||
1738 | // re-acquire the original message to handle correctly the sg copy operation | |
1739 | memset(&msg, 0, MAX_MESSAGE_SIZE*4); | |
1740 | // get user msg size in u32s | |
1741 | if(get_user(size, &user_msg[0])){ | |
1742 | rcode = -EFAULT; | |
1743 | goto cleanup; | |
1744 | } | |
1745 | size = size>>16; | |
1746 | size *= 4; | |
1747 | /* Copy in the user's I2O command */ | |
1748 | if (copy_from_user (msg, user_msg, size)) { | |
1749 | rcode = -EFAULT; | |
1750 | goto cleanup; | |
1751 | } | |
1752 | sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); | |
1753 | ||
1754 | // TODO 64bit fix | |
1755 | sg = (struct sg_simple_element*)(msg + sg_offset); | |
1756 | for (j = 0; j < sg_count; j++) { | |
1757 | /* Copy out the SG list to user's buffer if necessary */ | |
1758 | if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) { | |
1759 | sg_size = sg[j].flag_count & 0xffffff; | |
1760 | // TODO 64bit fix | |
1761 | if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) { | |
1762 | printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus); | |
1763 | rcode = -EFAULT; | |
1764 | goto cleanup; | |
1765 | } | |
1766 | } | |
1767 | } | |
1768 | } | |
1769 | ||
1770 | /* Copy back the reply to user space */ | |
1771 | if (reply_size) { | |
1772 | // we wrote our own values for context - now restore the user supplied ones | |
1773 | if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) { | |
1774 | printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name); | |
1775 | rcode = -EFAULT; | |
1776 | } | |
1777 | if(copy_to_user(user_reply, reply, reply_size)) { | |
1778 | printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name); | |
1779 | rcode = -EFAULT; | |
1780 | } | |
1781 | } | |
1782 | ||
1783 | ||
1784 | cleanup: | |
1785 | if (rcode != -ETIME && rcode != -EINTR) | |
1786 | kfree (reply); | |
1787 | while(sg_index) { | |
1788 | if(sg_list[--sg_index]) { | |
1789 | if (rcode != -ETIME && rcode != -EINTR) | |
1790 | kfree(sg_list[sg_index]); | |
1791 | } | |
1792 | } | |
1793 | return rcode; | |
1794 | } | |
1795 | ||
1796 | ||
1797 | /* | |
1798 | * This routine returns information about the system. This does not effect | |
1799 | * any logic and if the info is wrong - it doesn't matter. | |
1800 | */ | |
1801 | ||
1802 | /* Get all the info we can not get from kernel services */ | |
1803 | static int adpt_system_info(void __user *buffer) | |
1804 | { | |
1805 | sysInfo_S si; | |
1806 | ||
1807 | memset(&si, 0, sizeof(si)); | |
1808 | ||
1809 | si.osType = OS_LINUX; | |
1810 | si.osMajorVersion = (u8) (LINUX_VERSION_CODE >> 16); | |
1811 | si.osMinorVersion = (u8) (LINUX_VERSION_CODE >> 8 & 0x0ff); | |
1812 | si.osRevision = (u8) (LINUX_VERSION_CODE & 0x0ff); | |
1813 | si.busType = SI_PCI_BUS; | |
1814 | si.processorFamily = DPTI_sig.dsProcessorFamily; | |
1815 | ||
1816 | #if defined __i386__ | |
1817 | adpt_i386_info(&si); | |
1818 | #elif defined (__ia64__) | |
1819 | adpt_ia64_info(&si); | |
1820 | #elif defined(__sparc__) | |
1821 | adpt_sparc_info(&si); | |
1822 | #elif defined (__alpha__) | |
1823 | adpt_alpha_info(&si); | |
1824 | #else | |
1825 | si.processorType = 0xff ; | |
1826 | #endif | |
1827 | if(copy_to_user(buffer, &si, sizeof(si))){ | |
1828 | printk(KERN_WARNING"dpti: Could not copy buffer TO user\n"); | |
1829 | return -EFAULT; | |
1830 | } | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
1835 | #if defined __ia64__ | |
1836 | static void adpt_ia64_info(sysInfo_S* si) | |
1837 | { | |
1838 | // This is all the info we need for now | |
1839 | // We will add more info as our new | |
1840 | // managmenent utility requires it | |
1841 | si->processorType = PROC_IA64; | |
1842 | } | |
1843 | #endif | |
1844 | ||
1845 | ||
1846 | #if defined __sparc__ | |
1847 | static void adpt_sparc_info(sysInfo_S* si) | |
1848 | { | |
1849 | // This is all the info we need for now | |
1850 | // We will add more info as our new | |
1851 | // managmenent utility requires it | |
1852 | si->processorType = PROC_ULTRASPARC; | |
1853 | } | |
1854 | #endif | |
1855 | ||
1856 | #if defined __alpha__ | |
1857 | static void adpt_alpha_info(sysInfo_S* si) | |
1858 | { | |
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_ALPHA; | |
1863 | } | |
1864 | #endif | |
1865 | ||
1866 | #if defined __i386__ | |
1867 | ||
1868 | static void adpt_i386_info(sysInfo_S* si) | |
1869 | { | |
1870 | // This is all the info we need for now | |
1871 | // We will add more info as our new | |
1872 | // managmenent utility requires it | |
1873 | switch (boot_cpu_data.x86) { | |
1874 | case CPU_386: | |
1875 | si->processorType = PROC_386; | |
1876 | break; | |
1877 | case CPU_486: | |
1878 | si->processorType = PROC_486; | |
1879 | break; | |
1880 | case CPU_586: | |
1881 | si->processorType = PROC_PENTIUM; | |
1882 | break; | |
1883 | default: // Just in case | |
1884 | si->processorType = PROC_PENTIUM; | |
1885 | break; | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | #endif | |
1890 | ||
1891 | ||
1892 | static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, | |
1893 | ulong arg) | |
1894 | { | |
1895 | int minor; | |
1896 | int error = 0; | |
1897 | adpt_hba* pHba; | |
1898 | ulong flags = 0; | |
1899 | void __user *argp = (void __user *)arg; | |
1900 | ||
1901 | minor = iminor(inode); | |
1902 | if (minor >= DPTI_MAX_HBA){ | |
1903 | return -ENXIO; | |
1904 | } | |
1905 | down(&adpt_configuration_lock); | |
1906 | for (pHba = hba_chain; pHba; pHba = pHba->next) { | |
1907 | if (pHba->unit == minor) { | |
1908 | break; /* found adapter */ | |
1909 | } | |
1910 | } | |
1911 | up(&adpt_configuration_lock); | |
1912 | if(pHba == NULL){ | |
1913 | return -ENXIO; | |
1914 | } | |
1915 | ||
1916 | while((volatile u32) pHba->state & DPTI_STATE_RESET ) { | |
1917 | set_task_state(current,TASK_UNINTERRUPTIBLE); | |
1918 | schedule_timeout(2); | |
1919 | ||
1920 | } | |
1921 | ||
1922 | switch (cmd) { | |
1923 | // TODO: handle 3 cases | |
1924 | case DPT_SIGNATURE: | |
1925 | if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) { | |
1926 | return -EFAULT; | |
1927 | } | |
1928 | break; | |
1929 | case I2OUSRCMD: | |
1930 | return adpt_i2o_passthru(pHba, argp); | |
1931 | ||
1932 | case DPT_CTRLINFO:{ | |
1933 | drvrHBAinfo_S HbaInfo; | |
1934 | ||
1935 | #define FLG_OSD_PCI_VALID 0x0001 | |
1936 | #define FLG_OSD_DMA 0x0002 | |
1937 | #define FLG_OSD_I2O 0x0004 | |
1938 | memset(&HbaInfo, 0, sizeof(HbaInfo)); | |
1939 | HbaInfo.drvrHBAnum = pHba->unit; | |
1940 | HbaInfo.baseAddr = (ulong) pHba->base_addr_phys; | |
1941 | HbaInfo.blinkState = adpt_read_blink_led(pHba); | |
1942 | HbaInfo.pciBusNum = pHba->pDev->bus->number; | |
1943 | HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn); | |
1944 | HbaInfo.Interrupt = pHba->pDev->irq; | |
1945 | HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O; | |
1946 | if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){ | |
1947 | printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name); | |
1948 | return -EFAULT; | |
1949 | } | |
1950 | break; | |
1951 | } | |
1952 | case DPT_SYSINFO: | |
1953 | return adpt_system_info(argp); | |
1954 | case DPT_BLINKLED:{ | |
1955 | u32 value; | |
1956 | value = (u32)adpt_read_blink_led(pHba); | |
1957 | if (copy_to_user(argp, &value, sizeof(value))) { | |
1958 | return -EFAULT; | |
1959 | } | |
1960 | break; | |
1961 | } | |
1962 | case I2ORESETCMD: | |
1963 | if(pHba->host) | |
1964 | spin_lock_irqsave(pHba->host->host_lock, flags); | |
1965 | adpt_hba_reset(pHba); | |
1966 | if(pHba->host) | |
1967 | spin_unlock_irqrestore(pHba->host->host_lock, flags); | |
1968 | break; | |
1969 | case I2ORESCANCMD: | |
1970 | adpt_rescan(pHba); | |
1971 | break; | |
1972 | default: | |
1973 | return -EINVAL; | |
1974 | } | |
1975 | ||
1976 | return error; | |
1977 | } | |
1978 | ||
1979 | ||
1980 | static irqreturn_t adpt_isr(int irq, void *dev_id, struct pt_regs *regs) | |
1981 | { | |
1982 | struct scsi_cmnd* cmd; | |
1983 | adpt_hba* pHba = dev_id; | |
1984 | u32 m; | |
1985 | ulong reply; | |
1986 | u32 status=0; | |
1987 | u32 context; | |
1988 | ulong flags = 0; | |
1989 | int handled = 0; | |
1990 | ||
1991 | if (pHba == NULL){ | |
1992 | printk(KERN_WARNING"adpt_isr: NULL dev_id\n"); | |
1993 | return IRQ_NONE; | |
1994 | } | |
1995 | if(pHba->host) | |
1996 | spin_lock_irqsave(pHba->host->host_lock, flags); | |
1997 | ||
1998 | while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) { | |
1999 | m = readl(pHba->reply_port); | |
2000 | if(m == EMPTY_QUEUE){ | |
2001 | // Try twice then give up | |
2002 | rmb(); | |
2003 | m = readl(pHba->reply_port); | |
2004 | if(m == EMPTY_QUEUE){ | |
2005 | // This really should not happen | |
2006 | printk(KERN_ERR"dpti: Could not get reply frame\n"); | |
2007 | goto out; | |
2008 | } | |
2009 | } | |
2010 | reply = (ulong)bus_to_virt(m); | |
2011 | ||
2012 | if (readl(reply) & MSG_FAIL) { | |
2013 | u32 old_m = readl(reply+28); | |
2014 | ulong msg; | |
2015 | u32 old_context; | |
2016 | PDEBUG("%s: Failed message\n",pHba->name); | |
2017 | if(old_m >= 0x100000){ | |
2018 | printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m); | |
2019 | writel(m,pHba->reply_port); | |
2020 | continue; | |
2021 | } | |
2022 | // Transaction context is 0 in failed reply frame | |
2023 | msg = (ulong)(pHba->msg_addr_virt + old_m); | |
2024 | old_context = readl(msg+12); | |
2025 | writel(old_context, reply+12); | |
2026 | adpt_send_nop(pHba, old_m); | |
2027 | } | |
2028 | context = readl(reply+8); | |
2029 | if(context & 0x40000000){ // IOCTL | |
2030 | ulong p = (ulong)(readl(reply+12)); | |
2031 | if( p != 0) { | |
2032 | memcpy((void*)p, (void*)reply, REPLY_FRAME_SIZE * 4); | |
2033 | } | |
2034 | // All IOCTLs will also be post wait | |
2035 | } | |
2036 | if(context & 0x80000000){ // Post wait message | |
2037 | status = readl(reply+16); | |
2038 | if(status >> 24){ | |
2039 | status &= 0xffff; /* Get detail status */ | |
2040 | } else { | |
2041 | status = I2O_POST_WAIT_OK; | |
2042 | } | |
2043 | if(!(context & 0x40000000)) { | |
2044 | cmd = (struct scsi_cmnd*) readl(reply+12); | |
2045 | if(cmd != NULL) { | |
2046 | printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context); | |
2047 | } | |
2048 | } | |
2049 | adpt_i2o_post_wait_complete(context, status); | |
2050 | } else { // SCSI message | |
2051 | cmd = (struct scsi_cmnd*) readl(reply+12); | |
2052 | if(cmd != NULL){ | |
2053 | if(cmd->serial_number != 0) { // If not timedout | |
2054 | adpt_i2o_to_scsi(reply, cmd); | |
2055 | } | |
2056 | } | |
2057 | } | |
2058 | writel(m, pHba->reply_port); | |
2059 | wmb(); | |
2060 | rmb(); | |
2061 | } | |
2062 | handled = 1; | |
2063 | out: if(pHba->host) | |
2064 | spin_unlock_irqrestore(pHba->host->host_lock, flags); | |
2065 | return IRQ_RETVAL(handled); | |
2066 | } | |
2067 | ||
2068 | static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d) | |
2069 | { | |
2070 | int i; | |
2071 | u32 msg[MAX_MESSAGE_SIZE]; | |
2072 | u32* mptr; | |
2073 | u32 *lenptr; | |
2074 | int direction; | |
2075 | int scsidir; | |
2076 | u32 len; | |
2077 | u32 reqlen; | |
2078 | s32 rcode; | |
2079 | ||
2080 | memset(msg, 0 , sizeof(msg)); | |
2081 | len = cmd->request_bufflen; | |
2082 | direction = 0x00000000; | |
2083 | ||
2084 | scsidir = 0x00000000; // DATA NO XFER | |
2085 | if(len) { | |
2086 | /* | |
2087 | * Set SCBFlags to indicate if data is being transferred | |
2088 | * in or out, or no data transfer | |
2089 | * Note: Do not have to verify index is less than 0 since | |
2090 | * cmd->cmnd[0] is an unsigned char | |
2091 | */ | |
2092 | switch(cmd->sc_data_direction){ | |
2093 | case DMA_FROM_DEVICE: | |
2094 | scsidir =0x40000000; // DATA IN (iop<--dev) | |
2095 | break; | |
2096 | case DMA_TO_DEVICE: | |
2097 | direction=0x04000000; // SGL OUT | |
2098 | scsidir =0x80000000; // DATA OUT (iop-->dev) | |
2099 | break; | |
2100 | case DMA_NONE: | |
2101 | break; | |
2102 | case DMA_BIDIRECTIONAL: | |
2103 | scsidir =0x40000000; // DATA IN (iop<--dev) | |
2104 | // Assume In - and continue; | |
2105 | break; | |
2106 | default: | |
2107 | printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n", | |
2108 | pHba->name, cmd->cmnd[0]); | |
2109 | cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8); | |
2110 | cmd->scsi_done(cmd); | |
2111 | return 0; | |
2112 | } | |
2113 | } | |
2114 | // msg[0] is set later | |
2115 | // I2O_CMD_SCSI_EXEC | |
2116 | msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid); | |
2117 | msg[2] = 0; | |
2118 | msg[3] = (u32)cmd; /* We want the SCSI control block back */ | |
2119 | // Our cards use the transaction context as the tag for queueing | |
2120 | // Adaptec/DPT Private stuff | |
2121 | msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16); | |
2122 | msg[5] = d->tid; | |
2123 | /* Direction, disconnect ok | sense data | simple queue , CDBLen */ | |
2124 | // I2O_SCB_FLAG_ENABLE_DISCONNECT | | |
2125 | // I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | | |
2126 | // I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; | |
2127 | msg[6] = scsidir|0x20a00000|cmd->cmd_len; | |
2128 | ||
2129 | mptr=msg+7; | |
2130 | ||
2131 | // Write SCSI command into the message - always 16 byte block | |
2132 | memset(mptr, 0, 16); | |
2133 | memcpy(mptr, cmd->cmnd, cmd->cmd_len); | |
2134 | mptr+=4; | |
2135 | lenptr=mptr++; /* Remember me - fill in when we know */ | |
2136 | reqlen = 14; // SINGLE SGE | |
2137 | /* Now fill in the SGList and command */ | |
2138 | if(cmd->use_sg) { | |
2139 | struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer; | |
2140 | int sg_count = pci_map_sg(pHba->pDev, sg, cmd->use_sg, | |
2141 | cmd->sc_data_direction); | |
2142 | ||
2143 | ||
2144 | len = 0; | |
2145 | for(i = 0 ; i < sg_count; i++) { | |
2146 | *mptr++ = direction|0x10000000|sg_dma_len(sg); | |
2147 | len+=sg_dma_len(sg); | |
2148 | *mptr++ = sg_dma_address(sg); | |
2149 | sg++; | |
2150 | } | |
2151 | /* Make this an end of list */ | |
2152 | mptr[-2] = direction|0xD0000000|sg_dma_len(sg-1); | |
2153 | reqlen = mptr - msg; | |
2154 | *lenptr = len; | |
2155 | ||
2156 | if(cmd->underflow && len != cmd->underflow){ | |
2157 | printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n", | |
2158 | len, cmd->underflow); | |
2159 | } | |
2160 | } else { | |
2161 | *lenptr = len = cmd->request_bufflen; | |
2162 | if(len == 0) { | |
2163 | reqlen = 12; | |
2164 | } else { | |
2165 | *mptr++ = 0xD0000000|direction|cmd->request_bufflen; | |
2166 | *mptr++ = pci_map_single(pHba->pDev, | |
2167 | cmd->request_buffer, | |
2168 | cmd->request_bufflen, | |
2169 | cmd->sc_data_direction); | |
2170 | } | |
2171 | } | |
2172 | ||
2173 | /* Stick the headers on */ | |
2174 | msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0); | |
2175 | ||
2176 | // Send it on it's way | |
2177 | rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2); | |
2178 | if (rcode == 0) { | |
2179 | return 0; | |
2180 | } | |
2181 | return rcode; | |
2182 | } | |
2183 | ||
2184 | ||
2185 | static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht) | |
2186 | { | |
2187 | struct Scsi_Host *host = NULL; | |
2188 | ||
2189 | host = scsi_register(sht, sizeof(adpt_hba*)); | |
2190 | if (host == NULL) { | |
2191 | printk ("%s: scsi_register returned NULL\n",pHba->name); | |
2192 | return -1; | |
2193 | } | |
2194 | host->hostdata[0] = (unsigned long)pHba; | |
2195 | pHba->host = host; | |
2196 | ||
2197 | host->irq = pHba->pDev->irq; | |
2198 | /* no IO ports, so don't have to set host->io_port and | |
2199 | * host->n_io_port | |
2200 | */ | |
2201 | host->io_port = 0; | |
2202 | host->n_io_port = 0; | |
2203 | /* see comments in hosts.h */ | |
2204 | host->max_id = 16; | |
2205 | host->max_lun = 256; | |
2206 | host->max_channel = pHba->top_scsi_channel + 1; | |
2207 | host->cmd_per_lun = 1; | |
2208 | host->unique_id = (uint) pHba; | |
2209 | host->sg_tablesize = pHba->sg_tablesize; | |
2210 | host->can_queue = pHba->post_fifo_size; | |
2211 | ||
2212 | return 0; | |
2213 | } | |
2214 | ||
2215 | ||
2216 | static s32 adpt_i2o_to_scsi(ulong reply, struct scsi_cmnd* cmd) | |
2217 | { | |
2218 | adpt_hba* pHba; | |
2219 | u32 hba_status; | |
2220 | u32 dev_status; | |
2221 | u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits | |
2222 | // I know this would look cleaner if I just read bytes | |
2223 | // but the model I have been using for all the rest of the | |
2224 | // io is in 4 byte words - so I keep that model | |
2225 | u16 detailed_status = readl(reply+16) &0xffff; | |
2226 | dev_status = (detailed_status & 0xff); | |
2227 | hba_status = detailed_status >> 8; | |
2228 | ||
2229 | // calculate resid for sg | |
2230 | cmd->resid = cmd->request_bufflen - readl(reply+5); | |
2231 | ||
2232 | pHba = (adpt_hba*) cmd->device->host->hostdata[0]; | |
2233 | ||
2234 | cmd->sense_buffer[0] = '\0'; // initialize sense valid flag to false | |
2235 | ||
2236 | if(!(reply_flags & MSG_FAIL)) { | |
2237 | switch(detailed_status & I2O_SCSI_DSC_MASK) { | |
2238 | case I2O_SCSI_DSC_SUCCESS: | |
2239 | cmd->result = (DID_OK << 16); | |
2240 | // handle underflow | |
2241 | if(readl(reply+5) < cmd->underflow ) { | |
2242 | cmd->result = (DID_ERROR <<16); | |
2243 | printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name); | |
2244 | } | |
2245 | break; | |
2246 | case I2O_SCSI_DSC_REQUEST_ABORTED: | |
2247 | cmd->result = (DID_ABORT << 16); | |
2248 | break; | |
2249 | case I2O_SCSI_DSC_PATH_INVALID: | |
2250 | case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: | |
2251 | case I2O_SCSI_DSC_SELECTION_TIMEOUT: | |
2252 | case I2O_SCSI_DSC_COMMAND_TIMEOUT: | |
2253 | case I2O_SCSI_DSC_NO_ADAPTER: | |
2254 | case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE: | |
2255 | printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%d) hba status=0x%x, dev status=0x%x, cmd=0x%x\n", | |
2256 | pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]); | |
2257 | cmd->result = (DID_TIME_OUT << 16); | |
2258 | break; | |
2259 | case I2O_SCSI_DSC_ADAPTER_BUSY: | |
2260 | case I2O_SCSI_DSC_BUS_BUSY: | |
2261 | cmd->result = (DID_BUS_BUSY << 16); | |
2262 | break; | |
2263 | case I2O_SCSI_DSC_SCSI_BUS_RESET: | |
2264 | case I2O_SCSI_DSC_BDR_MESSAGE_SENT: | |
2265 | cmd->result = (DID_RESET << 16); | |
2266 | break; | |
2267 | case I2O_SCSI_DSC_PARITY_ERROR_FAILURE: | |
2268 | printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name); | |
2269 | cmd->result = (DID_PARITY << 16); | |
2270 | break; | |
2271 | case I2O_SCSI_DSC_UNABLE_TO_ABORT: | |
2272 | case I2O_SCSI_DSC_COMPLETE_WITH_ERROR: | |
2273 | case I2O_SCSI_DSC_UNABLE_TO_TERMINATE: | |
2274 | case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED: | |
2275 | case I2O_SCSI_DSC_AUTOSENSE_FAILED: | |
2276 | case I2O_SCSI_DSC_DATA_OVERRUN: | |
2277 | case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE: | |
2278 | case I2O_SCSI_DSC_SEQUENCE_FAILURE: | |
2279 | case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR: | |
2280 | case I2O_SCSI_DSC_PROVIDE_FAILURE: | |
2281 | case I2O_SCSI_DSC_REQUEST_TERMINATED: | |
2282 | case I2O_SCSI_DSC_IDE_MESSAGE_SENT: | |
2283 | case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT: | |
2284 | case I2O_SCSI_DSC_MESSAGE_RECEIVED: | |
2285 | case I2O_SCSI_DSC_INVALID_CDB: | |
2286 | case I2O_SCSI_DSC_LUN_INVALID: | |
2287 | case I2O_SCSI_DSC_SCSI_TID_INVALID: | |
2288 | case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE: | |
2289 | case I2O_SCSI_DSC_NO_NEXUS: | |
2290 | case I2O_SCSI_DSC_CDB_RECEIVED: | |
2291 | case I2O_SCSI_DSC_LUN_ALREADY_ENABLED: | |
2292 | case I2O_SCSI_DSC_QUEUE_FROZEN: | |
2293 | case I2O_SCSI_DSC_REQUEST_INVALID: | |
2294 | default: | |
2295 | printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", | |
2296 | pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, | |
2297 | hba_status, dev_status, cmd->cmnd[0]); | |
2298 | cmd->result = (DID_ERROR << 16); | |
2299 | break; | |
2300 | } | |
2301 | ||
2302 | // copy over the request sense data if it was a check | |
2303 | // condition status | |
2304 | if(dev_status == 0x02 /*CHECK_CONDITION*/) { | |
2305 | u32 len = sizeof(cmd->sense_buffer); | |
2306 | len = (len > 40) ? 40 : len; | |
2307 | // Copy over the sense data | |
2308 | memcpy(cmd->sense_buffer, (void*)(reply+28) , len); | |
2309 | if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && | |
2310 | cmd->sense_buffer[2] == DATA_PROTECT ){ | |
2311 | /* This is to handle an array failed */ | |
2312 | cmd->result = (DID_TIME_OUT << 16); | |
2313 | printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%d) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", | |
2314 | pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, | |
2315 | hba_status, dev_status, cmd->cmnd[0]); | |
2316 | ||
2317 | } | |
2318 | } | |
2319 | } else { | |
2320 | /* In this condtion we could not talk to the tid | |
2321 | * the card rejected it. We should signal a retry | |
2322 | * for a limitted number of retries. | |
2323 | */ | |
2324 | cmd->result = (DID_TIME_OUT << 16); | |
2325 | printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%d) tid=%d, cmd=0x%x\n", | |
2326 | pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, (u32)cmd->device->lun, | |
2327 | ((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]); | |
2328 | } | |
2329 | ||
2330 | cmd->result |= (dev_status); | |
2331 | ||
2332 | if(cmd->scsi_done != NULL){ | |
2333 | cmd->scsi_done(cmd); | |
2334 | } | |
2335 | return cmd->result; | |
2336 | } | |
2337 | ||
2338 | ||
2339 | static s32 adpt_rescan(adpt_hba* pHba) | |
2340 | { | |
2341 | s32 rcode; | |
2342 | ulong flags = 0; | |
2343 | ||
2344 | if(pHba->host) | |
2345 | spin_lock_irqsave(pHba->host->host_lock, flags); | |
2346 | if ((rcode=adpt_i2o_lct_get(pHba)) < 0) | |
2347 | goto out; | |
2348 | if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0) | |
2349 | goto out; | |
2350 | rcode = 0; | |
2351 | out: if(pHba->host) | |
2352 | spin_unlock_irqrestore(pHba->host->host_lock, flags); | |
2353 | return rcode; | |
2354 | } | |
2355 | ||
2356 | ||
2357 | static s32 adpt_i2o_reparse_lct(adpt_hba* pHba) | |
2358 | { | |
2359 | int i; | |
2360 | int max; | |
2361 | int tid; | |
2362 | struct i2o_device *d; | |
2363 | i2o_lct *lct = pHba->lct; | |
2364 | u8 bus_no = 0; | |
2365 | s16 scsi_id; | |
2366 | s16 scsi_lun; | |
2367 | u32 buf[10]; // at least 8 u32's | |
2368 | struct adpt_device* pDev = NULL; | |
2369 | struct i2o_device* pI2o_dev = NULL; | |
2370 | ||
2371 | if (lct == NULL) { | |
2372 | printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); | |
2373 | return -1; | |
2374 | } | |
2375 | ||
2376 | max = lct->table_size; | |
2377 | max -= 3; | |
2378 | max /= 9; | |
2379 | ||
2380 | // Mark each drive as unscanned | |
2381 | for (d = pHba->devices; d; d = d->next) { | |
2382 | pDev =(struct adpt_device*) d->owner; | |
2383 | if(!pDev){ | |
2384 | continue; | |
2385 | } | |
2386 | pDev->state |= DPTI_DEV_UNSCANNED; | |
2387 | } | |
2388 | ||
2389 | printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max); | |
2390 | ||
2391 | for(i=0;i<max;i++) { | |
2392 | if( lct->lct_entry[i].user_tid != 0xfff){ | |
2393 | continue; | |
2394 | } | |
2395 | ||
2396 | if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || | |
2397 | lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL || | |
2398 | lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ | |
2399 | tid = lct->lct_entry[i].tid; | |
2400 | if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { | |
2401 | printk(KERN_ERR"%s: Could not query device\n",pHba->name); | |
2402 | continue; | |
2403 | } | |
2404 | bus_no = buf[0]>>16; | |
2405 | scsi_id = buf[1]; | |
2406 | scsi_lun = (buf[2]>>8 )&0xff; | |
2407 | pDev = pHba->channel[bus_no].device[scsi_id]; | |
2408 | /* da lun */ | |
2409 | while(pDev) { | |
2410 | if(pDev->scsi_lun == scsi_lun) { | |
2411 | break; | |
2412 | } | |
2413 | pDev = pDev->next_lun; | |
2414 | } | |
2415 | if(!pDev ) { // Something new add it | |
2416 | d = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL); | |
2417 | if(d==NULL) | |
2418 | { | |
2419 | printk(KERN_CRIT "Out of memory for I2O device data.\n"); | |
2420 | return -ENOMEM; | |
2421 | } | |
2422 | ||
2423 | d->controller = (void*)pHba; | |
2424 | d->next = NULL; | |
2425 | ||
2426 | memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); | |
2427 | ||
2428 | d->flags = 0; | |
2429 | adpt_i2o_report_hba_unit(pHba, d); | |
2430 | adpt_i2o_install_device(pHba, d); | |
2431 | ||
2432 | if(bus_no >= MAX_CHANNEL) { // Something wrong skip it | |
2433 | printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no); | |
2434 | continue; | |
2435 | } | |
2436 | pDev = pHba->channel[bus_no].device[scsi_id]; | |
2437 | if( pDev == NULL){ | |
2438 | pDev = kmalloc(sizeof(struct adpt_device),GFP_KERNEL); | |
2439 | if(pDev == NULL) { | |
2440 | return -ENOMEM; | |
2441 | } | |
2442 | pHba->channel[bus_no].device[scsi_id] = pDev; | |
2443 | } else { | |
2444 | while (pDev->next_lun) { | |
2445 | pDev = pDev->next_lun; | |
2446 | } | |
2447 | pDev = pDev->next_lun = kmalloc(sizeof(struct adpt_device),GFP_KERNEL); | |
2448 | if(pDev == NULL) { | |
2449 | return -ENOMEM; | |
2450 | } | |
2451 | } | |
2452 | memset(pDev,0,sizeof(struct adpt_device)); | |
2453 | pDev->tid = d->lct_data.tid; | |
2454 | pDev->scsi_channel = bus_no; | |
2455 | pDev->scsi_id = scsi_id; | |
2456 | pDev->scsi_lun = scsi_lun; | |
2457 | pDev->pI2o_dev = d; | |
2458 | d->owner = pDev; | |
2459 | pDev->type = (buf[0])&0xff; | |
2460 | pDev->flags = (buf[0]>>8)&0xff; | |
2461 | // Too late, SCSI system has made up it's mind, but what the hey ... | |
2462 | if(scsi_id > pHba->top_scsi_id){ | |
2463 | pHba->top_scsi_id = scsi_id; | |
2464 | } | |
2465 | if(scsi_lun > pHba->top_scsi_lun){ | |
2466 | pHba->top_scsi_lun = scsi_lun; | |
2467 | } | |
2468 | continue; | |
2469 | } // end of new i2o device | |
2470 | ||
2471 | // We found an old device - check it | |
2472 | while(pDev) { | |
2473 | if(pDev->scsi_lun == scsi_lun) { | |
2474 | if(!scsi_device_online(pDev->pScsi_dev)) { | |
2475 | printk(KERN_WARNING"%s: Setting device (%d,%d,%d) back online\n", | |
2476 | pHba->name,bus_no,scsi_id,scsi_lun); | |
2477 | if (pDev->pScsi_dev) { | |
2478 | scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING); | |
2479 | } | |
2480 | } | |
2481 | d = pDev->pI2o_dev; | |
2482 | if(d->lct_data.tid != tid) { // something changed | |
2483 | pDev->tid = tid; | |
2484 | memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); | |
2485 | if (pDev->pScsi_dev) { | |
2486 | pDev->pScsi_dev->changed = TRUE; | |
2487 | pDev->pScsi_dev->removable = TRUE; | |
2488 | } | |
2489 | } | |
2490 | // Found it - mark it scanned | |
2491 | pDev->state = DPTI_DEV_ONLINE; | |
2492 | break; | |
2493 | } | |
2494 | pDev = pDev->next_lun; | |
2495 | } | |
2496 | } | |
2497 | } | |
2498 | for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) { | |
2499 | pDev =(struct adpt_device*) pI2o_dev->owner; | |
2500 | if(!pDev){ | |
2501 | continue; | |
2502 | } | |
2503 | // Drive offline drives that previously existed but could not be found | |
2504 | // in the LCT table | |
2505 | if (pDev->state & DPTI_DEV_UNSCANNED){ | |
2506 | pDev->state = DPTI_DEV_OFFLINE; | |
2507 | printk(KERN_WARNING"%s: Device (%d,%d,%d) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun); | |
2508 | if (pDev->pScsi_dev) { | |
2509 | scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE); | |
2510 | } | |
2511 | } | |
2512 | } | |
2513 | return 0; | |
2514 | } | |
2515 | ||
2516 | static void adpt_fail_posted_scbs(adpt_hba* pHba) | |
2517 | { | |
2518 | struct scsi_cmnd* cmd = NULL; | |
2519 | struct scsi_device* d = NULL; | |
2520 | ||
2521 | shost_for_each_device(d, pHba->host) { | |
2522 | unsigned long flags; | |
2523 | spin_lock_irqsave(&d->list_lock, flags); | |
2524 | list_for_each_entry(cmd, &d->cmd_list, list) { | |
2525 | if(cmd->serial_number == 0){ | |
2526 | continue; | |
2527 | } | |
2528 | cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1); | |
2529 | cmd->scsi_done(cmd); | |
2530 | } | |
2531 | spin_unlock_irqrestore(&d->list_lock, flags); | |
2532 | } | |
2533 | } | |
2534 | ||
2535 | ||
2536 | /*============================================================================ | |
2537 | * Routines from i2o subsystem | |
2538 | *============================================================================ | |
2539 | */ | |
2540 | ||
2541 | ||
2542 | ||
2543 | /* | |
2544 | * Bring an I2O controller into HOLD state. See the spec. | |
2545 | */ | |
2546 | static int adpt_i2o_activate_hba(adpt_hba* pHba) | |
2547 | { | |
2548 | int rcode; | |
2549 | ||
2550 | if(pHba->initialized ) { | |
2551 | if (adpt_i2o_status_get(pHba) < 0) { | |
2552 | if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ | |
2553 | printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); | |
2554 | return rcode; | |
2555 | } | |
2556 | if (adpt_i2o_status_get(pHba) < 0) { | |
2557 | printk(KERN_INFO "HBA not responding.\n"); | |
2558 | return -1; | |
2559 | } | |
2560 | } | |
2561 | ||
2562 | if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) { | |
2563 | printk(KERN_CRIT "%s: hardware fault\n", pHba->name); | |
2564 | return -1; | |
2565 | } | |
2566 | ||
2567 | if (pHba->status_block->iop_state == ADAPTER_STATE_READY || | |
2568 | pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL || | |
2569 | pHba->status_block->iop_state == ADAPTER_STATE_HOLD || | |
2570 | pHba->status_block->iop_state == ADAPTER_STATE_FAILED) { | |
2571 | adpt_i2o_reset_hba(pHba); | |
2572 | if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) { | |
2573 | printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name); | |
2574 | return -1; | |
2575 | } | |
2576 | } | |
2577 | } else { | |
2578 | if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ | |
2579 | printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); | |
2580 | return rcode; | |
2581 | } | |
2582 | ||
2583 | } | |
2584 | ||
2585 | if (adpt_i2o_init_outbound_q(pHba) < 0) { | |
2586 | return -1; | |
2587 | } | |
2588 | ||
2589 | /* In HOLD state */ | |
2590 | ||
2591 | if (adpt_i2o_hrt_get(pHba) < 0) { | |
2592 | return -1; | |
2593 | } | |
2594 | ||
2595 | return 0; | |
2596 | } | |
2597 | ||
2598 | /* | |
2599 | * Bring a controller online into OPERATIONAL state. | |
2600 | */ | |
2601 | ||
2602 | static int adpt_i2o_online_hba(adpt_hba* pHba) | |
2603 | { | |
2604 | if (adpt_i2o_systab_send(pHba) < 0) { | |
2605 | adpt_i2o_delete_hba(pHba); | |
2606 | return -1; | |
2607 | } | |
2608 | /* In READY state */ | |
2609 | ||
2610 | if (adpt_i2o_enable_hba(pHba) < 0) { | |
2611 | adpt_i2o_delete_hba(pHba); | |
2612 | return -1; | |
2613 | } | |
2614 | ||
2615 | /* In OPERATIONAL state */ | |
2616 | return 0; | |
2617 | } | |
2618 | ||
2619 | static s32 adpt_send_nop(adpt_hba*pHba,u32 m) | |
2620 | { | |
2621 | u32 __iomem *msg; | |
2622 | ulong timeout = jiffies + 5*HZ; | |
2623 | ||
2624 | while(m == EMPTY_QUEUE){ | |
2625 | rmb(); | |
2626 | m = readl(pHba->post_port); | |
2627 | if(m != EMPTY_QUEUE){ | |
2628 | break; | |
2629 | } | |
2630 | if(time_after(jiffies,timeout)){ | |
2631 | printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name); | |
2632 | return 2; | |
2633 | } | |
2634 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2635 | schedule_timeout(1); | |
2636 | } | |
2637 | msg = (u32 __iomem *)(pHba->msg_addr_virt + m); | |
2638 | writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]); | |
2639 | writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]); | |
2640 | writel( 0,&msg[2]); | |
2641 | wmb(); | |
2642 | ||
2643 | writel(m, pHba->post_port); | |
2644 | wmb(); | |
2645 | return 0; | |
2646 | } | |
2647 | ||
2648 | static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba) | |
2649 | { | |
2650 | u8 *status; | |
2651 | u32 __iomem *msg = NULL; | |
2652 | int i; | |
2653 | ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ; | |
2654 | u32* ptr; | |
2655 | u32 outbound_frame; // This had to be a 32 bit address | |
2656 | u32 m; | |
2657 | ||
2658 | do { | |
2659 | rmb(); | |
2660 | m = readl(pHba->post_port); | |
2661 | if (m != EMPTY_QUEUE) { | |
2662 | break; | |
2663 | } | |
2664 | ||
2665 | if(time_after(jiffies,timeout)){ | |
2666 | printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name); | |
2667 | return -ETIMEDOUT; | |
2668 | } | |
2669 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2670 | schedule_timeout(1); | |
2671 | } while(m == EMPTY_QUEUE); | |
2672 | ||
2673 | msg=(u32 __iomem *)(pHba->msg_addr_virt+m); | |
2674 | ||
2675 | status = kmalloc(4,GFP_KERNEL|ADDR32); | |
2676 | if (status==NULL) { | |
2677 | adpt_send_nop(pHba, m); | |
2678 | printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n", | |
2679 | pHba->name); | |
2680 | return -ENOMEM; | |
2681 | } | |
2682 | memset(status, 0, 4); | |
2683 | ||
2684 | writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]); | |
2685 | writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]); | |
2686 | writel(0, &msg[2]); | |
2687 | writel(0x0106, &msg[3]); /* Transaction context */ | |
2688 | writel(4096, &msg[4]); /* Host page frame size */ | |
2689 | writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]); /* Outbound msg frame size and Initcode */ | |
2690 | writel(0xD0000004, &msg[6]); /* Simple SG LE, EOB */ | |
2691 | writel(virt_to_bus(status), &msg[7]); | |
2692 | ||
2693 | writel(m, pHba->post_port); | |
2694 | wmb(); | |
2695 | ||
2696 | // Wait for the reply status to come back | |
2697 | do { | |
2698 | if (*status) { | |
2699 | if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) { | |
2700 | break; | |
2701 | } | |
2702 | } | |
2703 | rmb(); | |
2704 | if(time_after(jiffies,timeout)){ | |
2705 | printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name); | |
2706 | return -ETIMEDOUT; | |
2707 | } | |
2708 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2709 | schedule_timeout(1); | |
2710 | } while (1); | |
2711 | ||
2712 | // If the command was successful, fill the fifo with our reply | |
2713 | // message packets | |
2714 | if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) { | |
2715 | kfree((void*)status); | |
2716 | return -2; | |
2717 | } | |
2718 | kfree((void*)status); | |
2719 | ||
2720 | if(pHba->reply_pool != NULL){ | |
2721 | kfree(pHba->reply_pool); | |
2722 | } | |
2723 | ||
2724 | pHba->reply_pool = (u32*)kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32); | |
2725 | if(!pHba->reply_pool){ | |
2726 | printk(KERN_ERR"%s: Could not allocate reply pool\n",pHba->name); | |
2727 | return -1; | |
2728 | } | |
2729 | memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4); | |
2730 | ||
2731 | ptr = pHba->reply_pool; | |
2732 | for(i = 0; i < pHba->reply_fifo_size; i++) { | |
2733 | outbound_frame = (u32)virt_to_bus(ptr); | |
2734 | writel(outbound_frame, pHba->reply_port); | |
2735 | wmb(); | |
2736 | ptr += REPLY_FRAME_SIZE; | |
2737 | } | |
2738 | adpt_i2o_status_get(pHba); | |
2739 | return 0; | |
2740 | } | |
2741 | ||
2742 | ||
2743 | /* | |
2744 | * I2O System Table. Contains information about | |
2745 | * all the IOPs in the system. Used to inform IOPs | |
2746 | * about each other's existence. | |
2747 | * | |
2748 | * sys_tbl_ver is the CurrentChangeIndicator that is | |
2749 | * used by IOPs to track changes. | |
2750 | */ | |
2751 | ||
2752 | ||
2753 | ||
2754 | static s32 adpt_i2o_status_get(adpt_hba* pHba) | |
2755 | { | |
2756 | ulong timeout; | |
2757 | u32 m; | |
2758 | u32 __iomem *msg; | |
2759 | u8 *status_block=NULL; | |
2760 | ulong status_block_bus; | |
2761 | ||
2762 | if(pHba->status_block == NULL) { | |
2763 | pHba->status_block = (i2o_status_block*) | |
2764 | kmalloc(sizeof(i2o_status_block),GFP_KERNEL|ADDR32); | |
2765 | if(pHba->status_block == NULL) { | |
2766 | printk(KERN_ERR | |
2767 | "dpti%d: Get Status Block failed; Out of memory. \n", | |
2768 | pHba->unit); | |
2769 | return -ENOMEM; | |
2770 | } | |
2771 | } | |
2772 | memset(pHba->status_block, 0, sizeof(i2o_status_block)); | |
2773 | status_block = (u8*)(pHba->status_block); | |
2774 | status_block_bus = virt_to_bus(pHba->status_block); | |
2775 | timeout = jiffies+TMOUT_GETSTATUS*HZ; | |
2776 | do { | |
2777 | rmb(); | |
2778 | m = readl(pHba->post_port); | |
2779 | if (m != EMPTY_QUEUE) { | |
2780 | break; | |
2781 | } | |
2782 | if(time_after(jiffies,timeout)){ | |
2783 | printk(KERN_ERR "%s: Timeout waiting for message !\n", | |
2784 | pHba->name); | |
2785 | return -ETIMEDOUT; | |
2786 | } | |
2787 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2788 | schedule_timeout(1); | |
2789 | } while(m==EMPTY_QUEUE); | |
2790 | ||
2791 | ||
2792 | msg=(u32 __iomem *)(pHba->msg_addr_virt+m); | |
2793 | ||
2794 | writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]); | |
2795 | writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]); | |
2796 | writel(1, &msg[2]); | |
2797 | writel(0, &msg[3]); | |
2798 | writel(0, &msg[4]); | |
2799 | writel(0, &msg[5]); | |
2800 | writel(((u32)status_block_bus)&0xffffffff, &msg[6]); | |
2801 | writel(0, &msg[7]); | |
2802 | writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes | |
2803 | ||
2804 | //post message | |
2805 | writel(m, pHba->post_port); | |
2806 | wmb(); | |
2807 | ||
2808 | while(status_block[87]!=0xff){ | |
2809 | if(time_after(jiffies,timeout)){ | |
2810 | printk(KERN_ERR"dpti%d: Get status timeout.\n", | |
2811 | pHba->unit); | |
2812 | return -ETIMEDOUT; | |
2813 | } | |
2814 | rmb(); | |
2815 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2816 | schedule_timeout(1); | |
2817 | } | |
2818 | ||
2819 | // Set up our number of outbound and inbound messages | |
2820 | pHba->post_fifo_size = pHba->status_block->max_inbound_frames; | |
2821 | if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) { | |
2822 | pHba->post_fifo_size = MAX_TO_IOP_MESSAGES; | |
2823 | } | |
2824 | ||
2825 | pHba->reply_fifo_size = pHba->status_block->max_outbound_frames; | |
2826 | if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) { | |
2827 | pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES; | |
2828 | } | |
2829 | ||
2830 | // Calculate the Scatter Gather list size | |
2831 | pHba->sg_tablesize = (pHba->status_block->inbound_frame_size * 4 -40)/ sizeof(struct sg_simple_element); | |
2832 | if (pHba->sg_tablesize > SG_LIST_ELEMENTS) { | |
2833 | pHba->sg_tablesize = SG_LIST_ELEMENTS; | |
2834 | } | |
2835 | ||
2836 | ||
2837 | #ifdef DEBUG | |
2838 | printk("dpti%d: State = ",pHba->unit); | |
2839 | switch(pHba->status_block->iop_state) { | |
2840 | case 0x01: | |
2841 | printk("INIT\n"); | |
2842 | break; | |
2843 | case 0x02: | |
2844 | printk("RESET\n"); | |
2845 | break; | |
2846 | case 0x04: | |
2847 | printk("HOLD\n"); | |
2848 | break; | |
2849 | case 0x05: | |
2850 | printk("READY\n"); | |
2851 | break; | |
2852 | case 0x08: | |
2853 | printk("OPERATIONAL\n"); | |
2854 | break; | |
2855 | case 0x10: | |
2856 | printk("FAILED\n"); | |
2857 | break; | |
2858 | case 0x11: | |
2859 | printk("FAULTED\n"); | |
2860 | break; | |
2861 | default: | |
2862 | printk("%x (unknown!!)\n",pHba->status_block->iop_state); | |
2863 | } | |
2864 | #endif | |
2865 | return 0; | |
2866 | } | |
2867 | ||
2868 | /* | |
2869 | * Get the IOP's Logical Configuration Table | |
2870 | */ | |
2871 | static int adpt_i2o_lct_get(adpt_hba* pHba) | |
2872 | { | |
2873 | u32 msg[8]; | |
2874 | int ret; | |
2875 | u32 buf[16]; | |
2876 | ||
2877 | if ((pHba->lct_size == 0) || (pHba->lct == NULL)){ | |
2878 | pHba->lct_size = pHba->status_block->expected_lct_size; | |
2879 | } | |
2880 | do { | |
2881 | if (pHba->lct == NULL) { | |
2882 | pHba->lct = kmalloc(pHba->lct_size, GFP_KERNEL|ADDR32); | |
2883 | if(pHba->lct == NULL) { | |
2884 | printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n", | |
2885 | pHba->name); | |
2886 | return -ENOMEM; | |
2887 | } | |
2888 | } | |
2889 | memset(pHba->lct, 0, pHba->lct_size); | |
2890 | ||
2891 | msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6; | |
2892 | msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID; | |
2893 | msg[2] = 0; | |
2894 | msg[3] = 0; | |
2895 | msg[4] = 0xFFFFFFFF; /* All devices */ | |
2896 | msg[5] = 0x00000000; /* Report now */ | |
2897 | msg[6] = 0xD0000000|pHba->lct_size; | |
2898 | msg[7] = virt_to_bus(pHba->lct); | |
2899 | ||
2900 | if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) { | |
2901 | printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n", | |
2902 | pHba->name, ret); | |
2903 | printk(KERN_ERR"Adaptec: Error Reading Hardware.\n"); | |
2904 | return ret; | |
2905 | } | |
2906 | ||
2907 | if ((pHba->lct->table_size << 2) > pHba->lct_size) { | |
2908 | pHba->lct_size = pHba->lct->table_size << 2; | |
2909 | kfree(pHba->lct); | |
2910 | pHba->lct = NULL; | |
2911 | } | |
2912 | } while (pHba->lct == NULL); | |
2913 | ||
2914 | PDEBUG("%s: Hardware resource table read.\n", pHba->name); | |
2915 | ||
2916 | ||
2917 | // I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO; | |
2918 | if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) { | |
2919 | pHba->FwDebugBufferSize = buf[1]; | |
2920 | pHba->FwDebugBuffer_P = pHba->base_addr_virt + buf[0]; | |
2921 | pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P + FW_DEBUG_FLAGS_OFFSET; | |
2922 | pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + FW_DEBUG_BLED_OFFSET; | |
2923 | pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1; | |
2924 | pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + FW_DEBUG_STR_LENGTH_OFFSET; | |
2925 | pHba->FwDebugBuffer_P += buf[2]; | |
2926 | pHba->FwDebugFlags = 0; | |
2927 | } | |
2928 | ||
2929 | return 0; | |
2930 | } | |
2931 | ||
2932 | static int adpt_i2o_build_sys_table(void) | |
2933 | { | |
2934 | adpt_hba* pHba = NULL; | |
2935 | int count = 0; | |
2936 | ||
2937 | sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs | |
2938 | (hba_count) * sizeof(struct i2o_sys_tbl_entry); | |
2939 | ||
2940 | if(sys_tbl) | |
2941 | kfree(sys_tbl); | |
2942 | ||
2943 | sys_tbl = kmalloc(sys_tbl_len, GFP_KERNEL|ADDR32); | |
2944 | if(!sys_tbl) { | |
2945 | printk(KERN_WARNING "SysTab Set failed. Out of memory.\n"); | |
2946 | return -ENOMEM; | |
2947 | } | |
2948 | memset(sys_tbl, 0, sys_tbl_len); | |
2949 | ||
2950 | sys_tbl->num_entries = hba_count; | |
2951 | sys_tbl->version = I2OVERSION; | |
2952 | sys_tbl->change_ind = sys_tbl_ind++; | |
2953 | ||
2954 | for(pHba = hba_chain; pHba; pHba = pHba->next) { | |
2955 | // Get updated Status Block so we have the latest information | |
2956 | if (adpt_i2o_status_get(pHba)) { | |
2957 | sys_tbl->num_entries--; | |
2958 | continue; // try next one | |
2959 | } | |
2960 | ||
2961 | sys_tbl->iops[count].org_id = pHba->status_block->org_id; | |
2962 | sys_tbl->iops[count].iop_id = pHba->unit + 2; | |
2963 | sys_tbl->iops[count].seg_num = 0; | |
2964 | sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version; | |
2965 | sys_tbl->iops[count].iop_state = pHba->status_block->iop_state; | |
2966 | sys_tbl->iops[count].msg_type = pHba->status_block->msg_type; | |
2967 | sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size; | |
2968 | sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ?? | |
2969 | sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities; | |
2970 | sys_tbl->iops[count].inbound_low = (u32)virt_to_bus((void*)pHba->post_port); | |
2971 | sys_tbl->iops[count].inbound_high = (u32)((u64)virt_to_bus((void*)pHba->post_port)>>32); | |
2972 | ||
2973 | count++; | |
2974 | } | |
2975 | ||
2976 | #ifdef DEBUG | |
2977 | { | |
2978 | u32 *table = (u32*)sys_tbl; | |
2979 | printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2)); | |
2980 | for(count = 0; count < (sys_tbl_len >>2); count++) { | |
2981 | printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", | |
2982 | count, table[count]); | |
2983 | } | |
2984 | } | |
2985 | #endif | |
2986 | ||
2987 | return 0; | |
2988 | } | |
2989 | ||
2990 | ||
2991 | /* | |
2992 | * Dump the information block associated with a given unit (TID) | |
2993 | */ | |
2994 | ||
2995 | static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d) | |
2996 | { | |
2997 | char buf[64]; | |
2998 | int unit = d->lct_data.tid; | |
2999 | ||
3000 | printk(KERN_INFO "TID %3.3d ", unit); | |
3001 | ||
3002 | if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0) | |
3003 | { | |
3004 | buf[16]=0; | |
3005 | printk(" Vendor: %-12.12s", buf); | |
3006 | } | |
3007 | if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0) | |
3008 | { | |
3009 | buf[16]=0; | |
3010 | printk(" Device: %-12.12s", buf); | |
3011 | } | |
3012 | if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0) | |
3013 | { | |
3014 | buf[8]=0; | |
3015 | printk(" Rev: %-12.12s\n", buf); | |
3016 | } | |
3017 | #ifdef DEBUG | |
3018 | printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id)); | |
3019 | printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class); | |
3020 | printk(KERN_INFO "\tFlags: "); | |
3021 | ||
3022 | if(d->lct_data.device_flags&(1<<0)) | |
3023 | printk("C"); // ConfigDialog requested | |
3024 | if(d->lct_data.device_flags&(1<<1)) | |
3025 | printk("U"); // Multi-user capable | |
3026 | if(!(d->lct_data.device_flags&(1<<4))) | |
3027 | printk("P"); // Peer service enabled! | |
3028 | if(!(d->lct_data.device_flags&(1<<5))) | |
3029 | printk("M"); // Mgmt service enabled! | |
3030 | printk("\n"); | |
3031 | #endif | |
3032 | } | |
3033 | ||
3034 | #ifdef DEBUG | |
3035 | /* | |
3036 | * Do i2o class name lookup | |
3037 | */ | |
3038 | static const char *adpt_i2o_get_class_name(int class) | |
3039 | { | |
3040 | int idx = 16; | |
3041 | static char *i2o_class_name[] = { | |
3042 | "Executive", | |
3043 | "Device Driver Module", | |
3044 | "Block Device", | |
3045 | "Tape Device", | |
3046 | "LAN Interface", | |
3047 | "WAN Interface", | |
3048 | "Fibre Channel Port", | |
3049 | "Fibre Channel Device", | |
3050 | "SCSI Device", | |
3051 | "ATE Port", | |
3052 | "ATE Device", | |
3053 | "Floppy Controller", | |
3054 | "Floppy Device", | |
3055 | "Secondary Bus Port", | |
3056 | "Peer Transport Agent", | |
3057 | "Peer Transport", | |
3058 | "Unknown" | |
3059 | }; | |
3060 | ||
3061 | switch(class&0xFFF) { | |
3062 | case I2O_CLASS_EXECUTIVE: | |
3063 | idx = 0; break; | |
3064 | case I2O_CLASS_DDM: | |
3065 | idx = 1; break; | |
3066 | case I2O_CLASS_RANDOM_BLOCK_STORAGE: | |
3067 | idx = 2; break; | |
3068 | case I2O_CLASS_SEQUENTIAL_STORAGE: | |
3069 | idx = 3; break; | |
3070 | case I2O_CLASS_LAN: | |
3071 | idx = 4; break; | |
3072 | case I2O_CLASS_WAN: | |
3073 | idx = 5; break; | |
3074 | case I2O_CLASS_FIBRE_CHANNEL_PORT: | |
3075 | idx = 6; break; | |
3076 | case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL: | |
3077 | idx = 7; break; | |
3078 | case I2O_CLASS_SCSI_PERIPHERAL: | |
3079 | idx = 8; break; | |
3080 | case I2O_CLASS_ATE_PORT: | |
3081 | idx = 9; break; | |
3082 | case I2O_CLASS_ATE_PERIPHERAL: | |
3083 | idx = 10; break; | |
3084 | case I2O_CLASS_FLOPPY_CONTROLLER: | |
3085 | idx = 11; break; | |
3086 | case I2O_CLASS_FLOPPY_DEVICE: | |
3087 | idx = 12; break; | |
3088 | case I2O_CLASS_BUS_ADAPTER_PORT: | |
3089 | idx = 13; break; | |
3090 | case I2O_CLASS_PEER_TRANSPORT_AGENT: | |
3091 | idx = 14; break; | |
3092 | case I2O_CLASS_PEER_TRANSPORT: | |
3093 | idx = 15; break; | |
3094 | } | |
3095 | return i2o_class_name[idx]; | |
3096 | } | |
3097 | #endif | |
3098 | ||
3099 | ||
3100 | static s32 adpt_i2o_hrt_get(adpt_hba* pHba) | |
3101 | { | |
3102 | u32 msg[6]; | |
3103 | int ret, size = sizeof(i2o_hrt); | |
3104 | ||
3105 | do { | |
3106 | if (pHba->hrt == NULL) { | |
3107 | pHba->hrt=kmalloc(size, GFP_KERNEL|ADDR32); | |
3108 | if (pHba->hrt == NULL) { | |
3109 | printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name); | |
3110 | return -ENOMEM; | |
3111 | } | |
3112 | } | |
3113 | ||
3114 | msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4; | |
3115 | msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID; | |
3116 | msg[2]= 0; | |
3117 | msg[3]= 0; | |
3118 | msg[4]= (0xD0000000 | size); /* Simple transaction */ | |
3119 | msg[5]= virt_to_bus(pHba->hrt); /* Dump it here */ | |
3120 | ||
3121 | if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) { | |
3122 | printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret); | |
3123 | return ret; | |
3124 | } | |
3125 | ||
3126 | if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) { | |
3127 | size = pHba->hrt->num_entries * pHba->hrt->entry_len << 2; | |
3128 | kfree(pHba->hrt); | |
3129 | pHba->hrt = NULL; | |
3130 | } | |
3131 | } while(pHba->hrt == NULL); | |
3132 | return 0; | |
3133 | } | |
3134 | ||
3135 | /* | |
3136 | * Query one scalar group value or a whole scalar group. | |
3137 | */ | |
3138 | static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid, | |
3139 | int group, int field, void *buf, int buflen) | |
3140 | { | |
3141 | u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field }; | |
3142 | u8 *resblk; | |
3143 | ||
3144 | int size; | |
3145 | ||
3146 | /* 8 bytes for header */ | |
3147 | resblk = kmalloc(sizeof(u8) * (8+buflen), GFP_KERNEL|ADDR32); | |
3148 | if (resblk == NULL) { | |
3149 | printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name); | |
3150 | return -ENOMEM; | |
3151 | } | |
3152 | ||
3153 | if (field == -1) /* whole group */ | |
3154 | opblk[4] = -1; | |
3155 | ||
3156 | size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid, | |
3157 | opblk, sizeof(opblk), resblk, sizeof(u8)*(8+buflen)); | |
3158 | if (size == -ETIME) { | |
3159 | printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name); | |
3160 | return -ETIME; | |
3161 | } else if (size == -EINTR) { | |
3162 | printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name); | |
3163 | return -EINTR; | |
3164 | } | |
3165 | ||
3166 | memcpy(buf, resblk+8, buflen); /* cut off header */ | |
3167 | ||
3168 | kfree(resblk); | |
3169 | if (size < 0) | |
3170 | return size; | |
3171 | ||
3172 | return buflen; | |
3173 | } | |
3174 | ||
3175 | ||
3176 | /* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET | |
3177 | * | |
3178 | * This function can be used for all UtilParamsGet/Set operations. | |
3179 | * The OperationBlock is given in opblk-buffer, | |
3180 | * and results are returned in resblk-buffer. | |
3181 | * Note that the minimum sized resblk is 8 bytes and contains | |
3182 | * ResultCount, ErrorInfoSize, BlockStatus and BlockSize. | |
3183 | */ | |
3184 | static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid, | |
3185 | void *opblk, int oplen, void *resblk, int reslen) | |
3186 | { | |
3187 | u32 msg[9]; | |
3188 | u32 *res = (u32 *)resblk; | |
3189 | int wait_status; | |
3190 | ||
3191 | msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5; | |
3192 | msg[1] = cmd << 24 | HOST_TID << 12 | tid; | |
3193 | msg[2] = 0; | |
3194 | msg[3] = 0; | |
3195 | msg[4] = 0; | |
3196 | msg[5] = 0x54000000 | oplen; /* OperationBlock */ | |
3197 | msg[6] = virt_to_bus(opblk); | |
3198 | msg[7] = 0xD0000000 | reslen; /* ResultBlock */ | |
3199 | msg[8] = virt_to_bus(resblk); | |
3200 | ||
3201 | if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) { | |
3202 | printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk); | |
3203 | return wait_status; /* -DetailedStatus */ | |
3204 | } | |
3205 | ||
3206 | if (res[1]&0x00FF0000) { /* BlockStatus != SUCCESS */ | |
3207 | printk(KERN_WARNING "%s: %s - Error:\n ErrorInfoSize = 0x%02x, " | |
3208 | "BlockStatus = 0x%02x, BlockSize = 0x%04x\n", | |
3209 | pHba->name, | |
3210 | (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" | |
3211 | : "PARAMS_GET", | |
3212 | res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF); | |
3213 | return -((res[1] >> 16) & 0xFF); /* -BlockStatus */ | |
3214 | } | |
3215 | ||
3216 | return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */ | |
3217 | } | |
3218 | ||
3219 | ||
3220 | static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba) | |
3221 | { | |
3222 | u32 msg[4]; | |
3223 | int ret; | |
3224 | ||
3225 | adpt_i2o_status_get(pHba); | |
3226 | ||
3227 | /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */ | |
3228 | ||
3229 | if((pHba->status_block->iop_state != ADAPTER_STATE_READY) && | |
3230 | (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){ | |
3231 | return 0; | |
3232 | } | |
3233 | ||
3234 | msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; | |
3235 | msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID; | |
3236 | msg[2] = 0; | |
3237 | msg[3] = 0; | |
3238 | ||
3239 | if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { | |
3240 | printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n", | |
3241 | pHba->unit, -ret); | |
3242 | } else { | |
3243 | printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit); | |
3244 | } | |
3245 | ||
3246 | adpt_i2o_status_get(pHba); | |
3247 | return ret; | |
3248 | } | |
3249 | ||
3250 | ||
3251 | /* | |
3252 | * Enable IOP. Allows the IOP to resume external operations. | |
3253 | */ | |
3254 | static int adpt_i2o_enable_hba(adpt_hba* pHba) | |
3255 | { | |
3256 | u32 msg[4]; | |
3257 | int ret; | |
3258 | ||
3259 | adpt_i2o_status_get(pHba); | |
3260 | if(!pHba->status_block){ | |
3261 | return -ENOMEM; | |
3262 | } | |
3263 | /* Enable only allowed on READY state */ | |
3264 | if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL) | |
3265 | return 0; | |
3266 | ||
3267 | if(pHba->status_block->iop_state != ADAPTER_STATE_READY) | |
3268 | return -EINVAL; | |
3269 | ||
3270 | msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; | |
3271 | msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID; | |
3272 | msg[2]= 0; | |
3273 | msg[3]= 0; | |
3274 | ||
3275 | if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { | |
3276 | printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n", | |
3277 | pHba->name, ret); | |
3278 | } else { | |
3279 | PDEBUG("%s: Enabled.\n", pHba->name); | |
3280 | } | |
3281 | ||
3282 | adpt_i2o_status_get(pHba); | |
3283 | return ret; | |
3284 | } | |
3285 | ||
3286 | ||
3287 | static int adpt_i2o_systab_send(adpt_hba* pHba) | |
3288 | { | |
3289 | u32 msg[12]; | |
3290 | int ret; | |
3291 | ||
3292 | msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6; | |
3293 | msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID; | |
3294 | msg[2] = 0; | |
3295 | msg[3] = 0; | |
3296 | msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */ | |
3297 | msg[5] = 0; /* Segment 0 */ | |
3298 | ||
3299 | /* | |
3300 | * Provide three SGL-elements: | |
3301 | * System table (SysTab), Private memory space declaration and | |
3302 | * Private i/o space declaration | |
3303 | */ | |
3304 | msg[6] = 0x54000000 | sys_tbl_len; | |
3305 | msg[7] = virt_to_phys(sys_tbl); | |
3306 | msg[8] = 0x54000000 | 0; | |
3307 | msg[9] = 0; | |
3308 | msg[10] = 0xD4000000 | 0; | |
3309 | msg[11] = 0; | |
3310 | ||
3311 | if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) { | |
3312 | printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n", | |
3313 | pHba->name, ret); | |
3314 | } | |
3315 | #ifdef DEBUG | |
3316 | else { | |
3317 | PINFO("%s: SysTab set.\n", pHba->name); | |
3318 | } | |
3319 | #endif | |
3320 | ||
3321 | return ret; | |
3322 | } | |
3323 | ||
3324 | ||
3325 | /*============================================================================ | |
3326 | * | |
3327 | *============================================================================ | |
3328 | */ | |
3329 | ||
3330 | ||
3331 | #ifdef UARTDELAY | |
3332 | ||
3333 | static static void adpt_delay(int millisec) | |
3334 | { | |
3335 | int i; | |
3336 | for (i = 0; i < millisec; i++) { | |
3337 | udelay(1000); /* delay for one millisecond */ | |
3338 | } | |
3339 | } | |
3340 | ||
3341 | #endif | |
3342 | ||
3343 | static struct scsi_host_template driver_template = { | |
3344 | .name = "dpt_i2o", | |
3345 | .proc_name = "dpt_i2o", | |
3346 | .proc_info = adpt_proc_info, | |
3347 | .detect = adpt_detect, | |
3348 | .release = adpt_release, | |
3349 | .info = adpt_info, | |
3350 | .queuecommand = adpt_queue, | |
3351 | .eh_abort_handler = adpt_abort, | |
3352 | .eh_device_reset_handler = adpt_device_reset, | |
3353 | .eh_bus_reset_handler = adpt_bus_reset, | |
3354 | .eh_host_reset_handler = adpt_reset, | |
3355 | .bios_param = adpt_bios_param, | |
3356 | .slave_configure = adpt_slave_configure, | |
3357 | .can_queue = MAX_TO_IOP_MESSAGES, | |
3358 | .this_id = 7, | |
3359 | .cmd_per_lun = 1, | |
3360 | .use_clustering = ENABLE_CLUSTERING, | |
3361 | }; | |
3362 | #include "scsi_module.c" | |
3363 | MODULE_LICENSE("GPL"); |