2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/slab.h>
63 #include <linux/vmalloc.h>
64 #include <linux/ioport.h>
65 #include <linux/delay.h>
66 #include <linux/pci.h>
67 #include <linux/wait.h>
68 #include <linux/spinlock.h>
69 #include <linux/sched.h>
70 #include <linux/interrupt.h>
71 #include <linux/blkdev.h>
72 #include <linux/firmware.h>
73 #include <linux/module.h>
74 #include <linux/moduleparam.h>
75 #include <linux/libata.h>
76 #include <linux/hdreg.h>
77 #include <linux/reboot.h>
78 #include <linux/stringify.h>
81 #include <asm/processor.h>
82 #include <scsi/scsi.h>
83 #include <scsi/scsi_host.h>
84 #include <scsi/scsi_tcq.h>
85 #include <scsi/scsi_eh.h>
86 #include <scsi/scsi_cmnd.h>
92 static LIST_HEAD(ipr_ioa_head);
93 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94 static unsigned int ipr_max_speed = 1;
95 static int ipr_testmode = 0;
96 static unsigned int ipr_fastfail = 0;
97 static unsigned int ipr_transop_timeout = 0;
98 static unsigned int ipr_debug = 0;
99 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
100 static unsigned int ipr_dual_ioa_raid = 1;
101 static unsigned int ipr_number_of_msix = 2;
102 static unsigned int ipr_fast_reboot;
103 static DEFINE_SPINLOCK(ipr_driver_lock);
105 /* This table describes the differences between DMA controller chips */
106 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
110 .cache_line_size = 0x20,
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
116 .clr_interrupt_mask_reg32 = 0x00230,
117 .sense_interrupt_mask_reg = 0x0022C,
118 .sense_interrupt_mask_reg32 = 0x0022C,
119 .clr_interrupt_reg = 0x00228,
120 .clr_interrupt_reg32 = 0x00228,
121 .sense_interrupt_reg = 0x00224,
122 .sense_interrupt_reg32 = 0x00224,
123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
125 .sense_uproc_interrupt_reg32 = 0x00214,
126 .set_uproc_interrupt_reg = 0x00214,
127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
132 { /* Snipe and Scamp */
135 .cache_line_size = 0x20,
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
141 .clr_interrupt_mask_reg32 = 0x0028C,
142 .sense_interrupt_mask_reg = 0x00288,
143 .sense_interrupt_mask_reg32 = 0x00288,
144 .clr_interrupt_reg = 0x00284,
145 .clr_interrupt_reg32 = 0x00284,
146 .sense_interrupt_reg = 0x00280,
147 .sense_interrupt_reg32 = 0x00280,
148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
150 .sense_uproc_interrupt_reg32 = 0x00290,
151 .set_uproc_interrupt_reg = 0x00290,
152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
160 .cache_line_size = 0x20,
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
166 .clr_interrupt_mask_reg32 = 0x0001C,
167 .sense_interrupt_mask_reg = 0x00010,
168 .sense_interrupt_mask_reg32 = 0x00014,
169 .clr_interrupt_reg = 0x00008,
170 .clr_interrupt_reg32 = 0x0000C,
171 .sense_interrupt_reg = 0x00000,
172 .sense_interrupt_reg32 = 0x00004,
173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
175 .sense_uproc_interrupt_reg32 = 0x00024,
176 .set_uproc_interrupt_reg = 0x00020,
177 .set_uproc_interrupt_reg32 = 0x00024,
178 .clr_uproc_interrupt_reg = 0x00028,
179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
181 .dump_addr_reg = 0x00064,
182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
188 static const struct ipr_chip_t ipr_chip[] = {
189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
200 static int ipr_max_bus_speeds[] = {
201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
204 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206 module_param_named(max_speed, ipr_max_speed, uint, 0);
207 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208 module_param_named(log_level, ipr_log_level, uint, 0);
209 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210 module_param_named(testmode, ipr_testmode, int, 0);
211 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
212 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
213 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
216 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
217 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
218 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
220 module_param_named(max_devs, ipr_max_devs, int, 0);
221 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
223 module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
224 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
225 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
227 MODULE_LICENSE("GPL");
228 MODULE_VERSION(IPR_DRIVER_VERSION);
230 /* A constant array of IOASCs/URCs/Error Messages */
232 struct ipr_error_table_t ipr_error_table[] = {
233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
234 "8155: An unknown error was received"},
236 "Soft underlength error"},
238 "Command to be cancelled not found"},
240 "Qualified success"},
241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
242 "FFFE: Soft device bus error recovered by the IOA"},
243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
244 "4101: Soft device bus fabric error"},
245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
260 "FFF9: Device sector reassign successful"},
261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFF7: Media error recovered by device rewrite procedures"},
263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
264 "7001: IOA sector reassignment successful"},
265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFF9: Soft media error. Sector reassignment recommended"},
267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF7: Media error recovered by IOA rewrite procedures"},
269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
270 "FF3D: Soft PCI bus error recovered by the IOA"},
271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
272 "FFF6: Device hardware error recovered by the IOA"},
273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
274 "FFF6: Device hardware error recovered by the device"},
275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
276 "FF3D: Soft IOA error recovered by the IOA"},
277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
278 "FFFA: Undefined device response recovered by the IOA"},
279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
280 "FFF6: Device bus error, message or command phase"},
281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
282 "FFFE: Task Management Function failed"},
283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
284 "FFF6: Failure prediction threshold exceeded"},
285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
286 "8009: Impending cache battery pack failure"},
288 "Logical Unit in process of becoming ready"},
290 "Initializing command required"},
292 "34FF: Disk device format in progress"},
294 "Logical unit not accessible, target port in unavailable state"},
295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
298 "Synchronization required"},
300 "IOA microcode download required"},
302 "Device bus connection is prohibited by host"},
304 "No ready, IOA shutdown"},
306 "Not ready, IOA has been shutdown"},
307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
308 "3020: Storage subsystem configuration error"},
310 "FFF5: Medium error, data unreadable, recommend reassign"},
312 "7000: Medium error, data unreadable, do not reassign"},
313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "FFF3: Disk media format bad"},
315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
316 "3002: Addressed device failed to respond to selection"},
317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
318 "3100: Device bus error"},
319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
320 "3109: IOA timed out a device command"},
322 "3120: SCSI bus is not operational"},
323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
324 "4100: Hard device bus fabric error"},
325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
340 "9000: IOA reserved area data check"},
341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
342 "9001: IOA reserved area invalid data pattern"},
343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
344 "9002: IOA reserved area LRC error"},
345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
348 "102E: Out of alternate sectors for disk storage"},
349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
350 "FFF4: Data transfer underlength error"},
351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
352 "FFF4: Data transfer overlength error"},
353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
354 "3400: Logical unit failure"},
355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
356 "FFF4: Device microcode is corrupt"},
357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
358 "8150: PCI bus error"},
360 "Unsupported device bus message received"},
361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "FFF4: Disk device problem"},
363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
364 "8150: Permanent IOA failure"},
365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
366 "3010: Disk device returned wrong response to IOA"},
367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
368 "8151: IOA microcode error"},
370 "Device bus status error"},
371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
372 "8157: IOA error requiring IOA reset to recover"},
374 "ATA device status error"},
376 "Message reject received from the device"},
377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
378 "8008: A permanent cache battery pack failure occurred"},
379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
380 "9090: Disk unit has been modified after the last known status"},
381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
382 "9081: IOA detected device error"},
383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
384 "9082: IOA detected device error"},
385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
386 "3110: Device bus error, message or command phase"},
387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
388 "3110: SAS Command / Task Management Function failed"},
389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
390 "9091: Incorrect hardware configuration change has been detected"},
391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
392 "9073: Invalid multi-adapter configuration"},
393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
394 "4010: Incorrect connection between cascaded expanders"},
395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
396 "4020: Connections exceed IOA design limits"},
397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
398 "4030: Incorrect multipath connection"},
399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
400 "4110: Unsupported enclosure function"},
401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFF4: Command to logical unit failed"},
406 "Illegal request, invalid request type or request packet"},
408 "Illegal request, invalid resource handle"},
410 "Illegal request, commands not allowed to this device"},
412 "Illegal request, command not allowed to a secondary adapter"},
414 "Illegal request, command not allowed to a non-optimized resource"},
416 "Illegal request, invalid field in parameter list"},
418 "Illegal request, parameter not supported"},
420 "Illegal request, parameter value invalid"},
422 "Illegal request, command sequence error"},
424 "Illegal request, dual adapter support not enabled"},
426 "Illegal request, another cable connector was physically disabled"},
428 "Illegal request, inconsistent group id/group count"},
429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9031: Array protection temporarily suspended, protection resuming"},
431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9040: Array protection temporarily suspended, protection resuming"},
433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
438 "3140: Device bus not ready to ready transition"},
439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
440 "FFFB: SCSI bus was reset"},
442 "FFFE: SCSI bus transition to single ended"},
444 "FFFE: SCSI bus transition to LVD"},
445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
446 "FFFB: SCSI bus was reset by another initiator"},
447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
448 "3029: A device replacement has occurred"},
449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
452 "9051: IOA cache data exists for a missing or failed device"},
453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
456 "9025: Disk unit is not supported at its physical location"},
457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
458 "3020: IOA detected a SCSI bus configuration error"},
459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
460 "3150: SCSI bus configuration error"},
461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9074: Asymmetric advanced function disk configuration"},
463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
464 "4040: Incomplete multipath connection between IOA and enclosure"},
465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
466 "4041: Incomplete multipath connection between enclosure and device"},
467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9075: Incomplete multipath connection between IOA and remote IOA"},
469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9076: Configuration error, missing remote IOA"},
471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
472 "4050: Enclosure does not support a required multipath function"},
473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9041: Array protection temporarily suspended"},
485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9042: Corrupt array parity detected on specified device"},
487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9030: Array no longer protected due to missing or failed disk unit"},
489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9071: Link operational transition"},
491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9072: Link not operational transition"},
493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9032: Array exposed but still protected"},
495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
498 "4061: Multipath redundancy level got better"},
499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
500 "4060: Multipath redundancy level got worse"},
501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
506 "Failure due to other device"},
507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
508 "9008: IOA does not support functions expected by devices"},
509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
510 "9010: Cache data associated with attached devices cannot be found"},
511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
512 "9011: Cache data belongs to devices other than those attached"},
513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
514 "9020: Array missing 2 or more devices with only 1 device present"},
515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
516 "9021: Array missing 2 or more devices with 2 or more devices present"},
517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
518 "9022: Exposed array is missing a required device"},
519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
520 "9023: Array member(s) not at required physical locations"},
521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
522 "9024: Array not functional due to present hardware configuration"},
523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
524 "9026: Array not functional due to present hardware configuration"},
525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
526 "9027: Array is missing a device and parity is out of sync"},
527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
528 "9028: Maximum number of arrays already exist"},
529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
530 "9050: Required cache data cannot be located for a disk unit"},
531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
532 "9052: Cache data exists for a device that has been modified"},
533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
534 "9054: IOA resources not available due to previous problems"},
535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
536 "9092: Disk unit requires initialization before use"},
537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
538 "9029: Incorrect hardware configuration change has been detected"},
539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
540 "9060: One or more disk pairs are missing from an array"},
541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
542 "9061: One or more disks are missing from an array"},
543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
544 "9062: One or more disks are missing from an array"},
545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
546 "9063: Maximum number of functional arrays has been exceeded"},
548 "Data protect, other volume set problem"},
550 "Aborted command, invalid descriptor"},
552 "Target operating conditions have changed, dual adapter takeover"},
554 "Aborted command, medium removal prevented"},
556 "Command terminated by host"},
558 "Aborted command, command terminated by host"}
561 static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
578 * Function Prototypes
580 static int ipr_reset_alert(struct ipr_cmnd *);
581 static void ipr_process_ccn(struct ipr_cmnd *);
582 static void ipr_process_error(struct ipr_cmnd *);
583 static void ipr_reset_ioa_job(struct ipr_cmnd *);
584 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
587 #ifdef CONFIG_SCSI_IPR_TRACE
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
592 * @add_data: additional data
597 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
602 unsigned int trace_index;
604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
619 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
629 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
646 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
657 ioarcb->data_transfer_length = 0;
658 ioarcb->read_data_transfer_length = 0;
659 ioarcb->ioadl_len = 0;
660 ioarcb->read_ioadl_len = 0;
662 if (ipr_cmd->ioa_cfg->sis64) {
663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
665 ioasa64->u.gata.status = 0;
667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
670 ioasa->u.gata.status = 0;
673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
675 ipr_cmd->scsi_cmd = NULL;
677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
688 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
694 ipr_cmd->eh_comp = NULL;
695 ipr_cmd->fast_done = fast_done;
696 init_timer(&ipr_cmd->timer);
700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
701 * @ioa_cfg: ioa config struct
704 * pointer to ipr command struct
707 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
709 struct ipr_cmnd *ipr_cmd = NULL;
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
726 * pointer to ipr command struct
729 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
748 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
751 volatile u32 int_reg;
754 /* Stop new interrupts */
755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
762 /* Set interrupt mask to stop all new interrupts */
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
768 /* Clear any pending interrupts */
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
780 * 0 on success / -EIO on failure
782 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
786 if (pcix_cmd_reg == 0)
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
804 * 0 on success / -EIO on failure
806 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
831 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
852 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
856 scsi_cmd->result |= (DID_ERROR << 16);
858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
859 scsi_cmd->scsi_done(scsi_cmd);
860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
869 * This function fails all outstanding ops.
874 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
876 struct ipr_cmnd *ipr_cmd, *temp;
877 struct ipr_hrr_queue *hrrq;
880 for_each_hrrq(hrrq, ioa_cfg) {
881 spin_lock(&hrrq->_lock);
882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
901 spin_unlock(&hrrq->_lock);
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
917 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
948 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
954 ipr_cmd->done = done;
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
960 add_timer(&ipr_cmd->timer);
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
964 ipr_send_command(ipr_cmd);
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
977 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
982 complete(&ipr_cmd->completion);
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
992 * This function initializes an ioadl in the case where there is only a single
998 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1004 ipr_cmd->dma_use_sg = 1;
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1039 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1053 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1057 if (ioa_cfg->hrrq_num == 1)
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1070 * @hostrcb: hostrcb struct
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1079 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1106 ipr_cmd->done = ipr_process_error;
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1110 ipr_send_command(ipr_cmd);
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1124 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1136 res->ata_class = ATA_DEV_UNKNOWN;
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
1144 * @cfgtew: config table entry wrapper struct
1149 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1157 res->needs_sync_complete = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
1162 res->reset_occurred = 0;
1164 res->sata_port = NULL;
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
1171 res->type = cfgtew->u.cfgte64->res_type;
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
1179 res->lun = scsilun_to_int(&res->dev_lun);
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1185 res->target = gscsi_res->target;
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1227 ipr_update_ata_class(res, proto);
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1236 * 1 if the devices are the same / 0 otherwise
1238 static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1245 sizeof(cfgtew->u.cfgte64->lun))) {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1259 * __ipr_format_res_path - Format the resource path for printing.
1260 * @res_path: resource path
1262 * @len: length of buffer provided
1267 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1285 * @len: length of buffer provided
1290 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1309 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1316 if (res->ioa_cfg->sis64) {
1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1319 res->type = cfgtew->u.cfgte64->res_type;
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1358 ipr_update_ata_class(res, proto);
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1370 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1375 if (!ioa_cfg->sis64)
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1386 clear_bit(res->target, ioa_cfg->target_ids);
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1400 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1401 struct ipr_hostrcb *hostrcb)
1403 struct ipr_resource_entry *res = NULL;
1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1418 if (res->res_handle == cc_res_handle) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1435 list_del(&res->queue);
1436 ipr_init_res_entry(res, &cfgtew);
1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1440 ipr_update_res_entry(res, &cfgtew);
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1444 res->del_from_ml = 1;
1445 res->res_handle = IPR_INVALID_RES_HANDLE;
1446 schedule_work(&ioa_cfg->work_q);
1448 ipr_clear_res_target(res);
1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1451 } else if (!res->sdev || res->del_from_ml) {
1453 schedule_work(&ioa_cfg->work_q);
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1469 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1475 list_del(&hostrcb->queue);
1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1499 * new length of string
1501 static int strip_and_pad_whitespace(int i, char *buf)
1503 while (i && buf[i] == ' ')
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1519 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1538 * ipr_log_vpd - Log the passed VPD to the error log.
1539 * @vpd: vendor/product id/sn struct
1544 static void ipr_log_vpd(struct ipr_vpd *vpd)
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1569 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1584 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1599 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1602 struct ipr_hostrcb_type_12_error *error;
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1635 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
1643 ipr_log_vpd(&error->ioa_vpd);
1644 ipr_err("Adapter Card Information:\n");
1645 ipr_log_vpd(&error->cfc_vpd);
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1650 ipr_err("Adapter Card Information:\n");
1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1667 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1680 dev_entry = error->dev;
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1707 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1721 dev_entry = error->dev;
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1726 ipr_err("Device %d : %s", i + 1,
1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
1729 ipr_log_ext_vpd(&dev_entry->vpd);
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1750 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1763 dev_entry = error->dev;
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1769 ipr_log_vpd(&dev_entry->vpd);
1771 ipr_err("-----New Device Information-----\n");
1772 ipr_log_vpd(&dev_entry->new_vpd);
1774 ipr_err("Cache Directory Card Information:\n");
1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1777 ipr_err("Adapter Card Information:\n");
1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1797 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1820 ARRAY_SIZE(error->array_member));
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1829 ipr_err("Array Member %d:\n", i);
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1848 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1869 array_entry = error->array_member;
1871 for (i = 0; i < 18; i++) {
1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1876 ipr_err("Exposed Array Member %d:\n", i);
1878 ipr_err("Array Member %d:\n", i);
1880 ipr_log_vpd(&array_entry->vpd);
1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1889 array_entry = error->array_member2;
1896 * ipr_log_hex_data - Log additional hex IOA error data.
1897 * @ioa_cfg: ioa config struct
1898 * @data: IOA error data
1904 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1914 for (i = 0; i < len / 4; i += 4) {
1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1931 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1934 struct ipr_hostrcb_type_17_error *error;
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1942 strim(error->failure_reason);
1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1947 ipr_log_hex_data(ioa_cfg, error->data,
1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1961 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1964 struct ipr_hostrcb_type_07_error *error;
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1968 strim(error->failure_reason);
1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1973 ipr_log_hex_data(ioa_cfg, error->data,
1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1979 static const struct {
1982 } path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1988 static const struct {
1991 } path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2006 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2055 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
2074 ipr_format_res_path(hostrcb->ioa_cfg,
2076 buffer, sizeof(buffer)));
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
2086 static const struct {
2089 } path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2096 static const struct {
2099 } path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2108 static const char *link_rate[] = {
2111 "phy reset problem",
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2135 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2159 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2202 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2248 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2285 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
2305 array_entry = error->array_member;
2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2317 ipr_err("Array Member %d:\n", i);
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
2321 ipr_err("Current Location: %s\n",
2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
2324 ipr_err("Expected Location: %s\n",
2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2341 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2379 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2383 be32_to_cpu(hostrcb->hcam.length));
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2394 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2431 * index into the ipr_error_table
2433 static u32 ipr_get_error(u32 ioasc)
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2449 * This function logs an adapter error to the system.
2454 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2459 struct ipr_hostrcb_type_21_error *error;
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
2476 hostrcb->hcam.u.error.fd_res_addr.bus);
2479 error_index = ipr_get_error(ioasc);
2481 if (!ipr_error_table[error_index].log_hcam)
2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2503 switch (hostrcb->hcam.overlay_id) {
2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2546 case IPR_HOST_RCB_OVERLAY_ID_1:
2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2549 ipr_log_generic_error(ioa_cfg, hostrcb);
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2565 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2577 list_del(&hostrcb->queue);
2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2597 * This function blocks host requests and initiates an
2603 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2629 * This function blocks host requests and initiates an
2635 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2665 * pointer to SES table entry / NULL on failure
2667 static const struct ipr_ses_table_entry *
2668 ipr_find_ses_entry(struct ipr_resource_entry *res)
2671 struct ipr_std_inq_vpids *vpids;
2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
2686 if (matches == IPR_PROD_ID_LEN)
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2697 * @bus_width: bus width
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2705 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2716 if (bus != res->bus)
2719 if (!(ste = ipr_find_ses_entry(res)))
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2725 return max_xfer_rate;
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2736 * 0 on success / other on failure
2738 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2740 volatile u32 pcii_reg;
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2771 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2773 __be32 *dest, u32 length_in_words)
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2794 * 0 on success / -EIO on failure
2796 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2798 __be32 *dest, u32 length_in_words)
2800 volatile u32 temp_pcii_reg;
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2877 #ifdef CONFIG_SCSI_IPR_DUMP
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2887 * 0 on success / other on failure
2889 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2892 int bytes_copied = 0;
2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2903 while (bytes_copied < length &&
2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2911 return bytes_copied;
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2945 return bytes_copied;
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2955 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2971 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2997 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3018 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3039 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3049 driver_dump->hdr.num_entries++;
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3060 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3068 struct ipr_sdt *sdt;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state != READ_DUMP) {
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3139 bytes_to_copy / sizeof(__be32));
3141 /* Smart Dump table is ready to use and the first entry is valid */
3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3167 for (i = 0; i < num_entries; i++) {
3168 if (ioa_dump->hdr.len > max_dump_size) {
3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3187 if (bytes_to_copy > max_dump_size) {
3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3196 ioa_dump->hdr.len += bytes_copied;
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3216 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3226 static void ipr_release_dump(struct kref *kref)
3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3242 vfree(dump->ioa_dump.ioa_data);
3248 * ipr_worker_thread - Worker thread
3249 * @work: ioa config struct
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3258 static void ipr_worker_thread(struct work_struct *work)
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
3266 u8 bus, target, lun;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3272 if (ioa_cfg->sdt_state == READ_DUMP) {
3273 dump = ioa_cfg->dump;
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3302 if (!scsi_device_get(sdev)) {
3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3306 res->del_from_ml = 0;
3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3320 target = res->target;
3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3330 ioa_cfg->scan_done = 1;
3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3336 #ifdef CONFIG_SCSI_IPR_TRACE
3338 * ipr_read_trace - Dump the adapter trace
3339 * @filp: open sysfs file
3340 * @kobj: kobject struct
3341 * @bin_attr: bin_attribute struct
3344 * @count: buffer size
3347 * number of bytes printed to buffer
3349 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3367 static struct bin_attribute ipr_trace_attr = {
3373 .read = ipr_read_trace,
3378 * ipr_show_fw_version - Show the firmware version
3379 * @dev: class device struct
3383 * number of bytes printed to buffer
3385 static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
3388 struct Scsi_Host *shost = class_to_shost(dev);
3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3403 static struct device_attribute ipr_fw_version_attr = {
3405 .name = "fw_version",
3408 .show = ipr_show_fw_version,
3412 * ipr_show_log_level - Show the adapter's error logging level
3413 * @dev: class device struct
3417 * number of bytes printed to buffer
3419 static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
3422 struct Scsi_Host *shost = class_to_shost(dev);
3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3434 * ipr_store_log_level - Change the adapter's error logging level
3435 * @dev: class device struct
3439 * number of bytes printed to buffer
3441 static ssize_t ipr_store_log_level(struct device *dev,
3442 struct device_attribute *attr,
3443 const char *buf, size_t count)
3445 struct Scsi_Host *shost = class_to_shost(dev);
3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3455 static struct device_attribute ipr_log_level_attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3465 * ipr_store_diagnostics - IOA Diagnostics interface
3466 * @dev: device struct
3468 * @count: buffer size
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3474 * count on success / other on failure
3476 static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
3478 const char *buf, size_t count)
3480 struct Scsi_Host *shost = class_to_shost(dev);
3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3485 if (!capable(CAP_SYS_ADMIN))
3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3489 while (ioa_cfg->in_reset_reload) {
3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3502 /* Wait for a second for any errors to be logged */
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3517 static struct device_attribute ipr_diagnostics_attr = {
3519 .name = "run_diagnostics",
3522 .store = ipr_store_diagnostics
3526 * ipr_show_adapter_state - Show the adapter's state
3527 * @class_dev: device struct
3531 * number of bytes printed to buffer
3533 static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
3536 struct Scsi_Host *shost = class_to_shost(dev);
3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3551 * ipr_store_adapter_state - Change adapter state
3552 * @dev: device struct
3554 * @count: buffer size
3556 * This function will change the adapter's state.
3559 * count on success / other on failure
3561 static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
3563 const char *buf, size_t count)
3565 struct Scsi_Host *shost = class_to_shost(dev);
3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
3568 int result = count, i;
3570 if (!capable(CAP_SYS_ADMIN))
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3592 static struct device_attribute ipr_ioa_state_attr = {
3594 .name = "online_state",
3595 .mode = S_IRUGO | S_IWUSR,
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3602 * ipr_store_reset_adapter - Reset the adapter
3603 * @dev: device struct
3605 * @count: buffer size
3607 * This function will reset the adapter.
3610 * count on success / other on failure
3612 static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
3614 const char *buf, size_t count)
3616 struct Scsi_Host *shost = class_to_shost(dev);
3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3621 if (!capable(CAP_SYS_ADMIN))
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3633 static struct device_attribute ipr_ioa_reset_attr = {
3635 .name = "reset_host",
3638 .store = ipr_store_reset_adapter
3641 static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3648 * number of bytes printed to buffer
3650 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3671 * number of bytes printed to buffer
3673 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3683 if (!ioa_cfg->sis64) {
3684 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3690 if (user_iopoll_weight > 256) {
3691 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3696 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3702 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3709 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3710 ioa_cfg->iopoll_weight, ipr_iopoll);
3711 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3714 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3719 static struct device_attribute ipr_iopoll_weight_attr = {
3721 .name = "iopoll_weight",
3722 .mode = S_IRUGO | S_IWUSR,
3724 .show = ipr_show_iopoll_weight,
3725 .store = ipr_store_iopoll_weight
3729 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3730 * @buf_len: buffer length
3732 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3733 * list to use for microcode download
3736 * pointer to sglist / NULL on failure
3738 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3740 int sg_size, order, bsize_elem, num_elem, i, j;
3741 struct ipr_sglist *sglist;
3742 struct scatterlist *scatterlist;
3745 /* Get the minimum size per scatter/gather element */
3746 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3748 /* Get the actual size per element */
3749 order = get_order(sg_size);
3751 /* Determine the actual number of bytes per element */
3752 bsize_elem = PAGE_SIZE * (1 << order);
3754 /* Determine the actual number of sg entries needed */
3755 if (buf_len % bsize_elem)
3756 num_elem = (buf_len / bsize_elem) + 1;
3758 num_elem = buf_len / bsize_elem;
3760 /* Allocate a scatter/gather list for the DMA */
3761 sglist = kzalloc(sizeof(struct ipr_sglist) +
3762 (sizeof(struct scatterlist) * (num_elem - 1)),
3765 if (sglist == NULL) {
3770 scatterlist = sglist->scatterlist;
3771 sg_init_table(scatterlist, num_elem);
3773 sglist->order = order;
3774 sglist->num_sg = num_elem;
3776 /* Allocate a bunch of sg elements */
3777 for (i = 0; i < num_elem; i++) {
3778 page = alloc_pages(GFP_KERNEL, order);
3782 /* Free up what we already allocated */
3783 for (j = i - 1; j >= 0; j--)
3784 __free_pages(sg_page(&scatterlist[j]), order);
3789 sg_set_page(&scatterlist[i], page, 0, 0);
3796 * ipr_free_ucode_buffer - Frees a microcode download buffer
3797 * @p_dnld: scatter/gather list pointer
3799 * Free a DMA'able ucode download buffer previously allocated with
3800 * ipr_alloc_ucode_buffer
3805 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3809 for (i = 0; i < sglist->num_sg; i++)
3810 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3816 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3817 * @sglist: scatter/gather list pointer
3818 * @buffer: buffer pointer
3819 * @len: buffer length
3821 * Copy a microcode image from a user buffer into a buffer allocated by
3822 * ipr_alloc_ucode_buffer
3825 * 0 on success / other on failure
3827 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3828 u8 *buffer, u32 len)
3830 int bsize_elem, i, result = 0;
3831 struct scatterlist *scatterlist;
3834 /* Determine the actual number of bytes per element */
3835 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3837 scatterlist = sglist->scatterlist;
3839 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3840 struct page *page = sg_page(&scatterlist[i]);
3843 memcpy(kaddr, buffer, bsize_elem);
3846 scatterlist[i].length = bsize_elem;
3854 if (len % bsize_elem) {
3855 struct page *page = sg_page(&scatterlist[i]);
3858 memcpy(kaddr, buffer, len % bsize_elem);
3861 scatterlist[i].length = len % bsize_elem;
3864 sglist->buffer_len = len;
3869 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3870 * @ipr_cmd: ipr command struct
3871 * @sglist: scatter/gather list
3873 * Builds a microcode download IOA data list (IOADL).
3876 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3877 struct ipr_sglist *sglist)
3879 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3880 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3881 struct scatterlist *scatterlist = sglist->scatterlist;
3884 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3886 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3889 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3890 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3891 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3892 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3893 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3896 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3900 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3901 * @ipr_cmd: ipr command struct
3902 * @sglist: scatter/gather list
3904 * Builds a microcode download IOA data list (IOADL).
3907 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3908 struct ipr_sglist *sglist)
3910 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3911 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3912 struct scatterlist *scatterlist = sglist->scatterlist;
3915 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3917 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3920 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3922 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3923 ioadl[i].flags_and_data_len =
3924 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3926 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3929 ioadl[i-1].flags_and_data_len |=
3930 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3934 * ipr_update_ioa_ucode - Update IOA's microcode
3935 * @ioa_cfg: ioa config struct
3936 * @sglist: scatter/gather list
3938 * Initiate an adapter reset to update the IOA's microcode
3941 * 0 on success / -EIO on failure
3943 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3944 struct ipr_sglist *sglist)
3946 unsigned long lock_flags;
3948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3949 while (ioa_cfg->in_reset_reload) {
3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3955 if (ioa_cfg->ucode_sglist) {
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 dev_err(&ioa_cfg->pdev->dev,
3958 "Microcode download already in progress\n");
3962 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3963 sglist->scatterlist, sglist->num_sg,
3966 if (!sglist->num_dma_sg) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 dev_err(&ioa_cfg->pdev->dev,
3969 "Failed to map microcode download buffer!\n");
3973 ioa_cfg->ucode_sglist = sglist;
3974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3976 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 ioa_cfg->ucode_sglist = NULL;
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3985 * ipr_store_update_fw - Update the firmware on the adapter
3986 * @class_dev: device struct
3988 * @count: buffer size
3990 * This function will update the firmware on the adapter.
3993 * count on success / other on failure
3995 static ssize_t ipr_store_update_fw(struct device *dev,
3996 struct device_attribute *attr,
3997 const char *buf, size_t count)
3999 struct Scsi_Host *shost = class_to_shost(dev);
4000 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 struct ipr_ucode_image_header *image_hdr;
4002 const struct firmware *fw_entry;
4003 struct ipr_sglist *sglist;
4007 int result, dnld_size;
4009 if (!capable(CAP_SYS_ADMIN))
4012 snprintf(fname, sizeof(fname), "%s", buf);
4014 endline = strchr(fname, '\n');
4018 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4019 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4023 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4025 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4026 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4027 sglist = ipr_alloc_ucode_buffer(dnld_size);
4030 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4031 release_firmware(fw_entry);
4035 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4038 dev_err(&ioa_cfg->pdev->dev,
4039 "Microcode buffer copy to DMA buffer failed\n");
4043 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4045 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4050 ipr_free_ucode_buffer(sglist);
4051 release_firmware(fw_entry);
4055 static struct device_attribute ipr_update_fw_attr = {
4057 .name = "update_fw",
4060 .store = ipr_store_update_fw
4064 * ipr_show_fw_type - Show the adapter's firmware type.
4065 * @dev: class device struct
4069 * number of bytes printed to buffer
4071 static ssize_t ipr_show_fw_type(struct device *dev,
4072 struct device_attribute *attr, char *buf)
4074 struct Scsi_Host *shost = class_to_shost(dev);
4075 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4076 unsigned long lock_flags = 0;
4079 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4080 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4081 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4085 static struct device_attribute ipr_ioa_fw_type_attr = {
4090 .show = ipr_show_fw_type
4093 static struct device_attribute *ipr_ioa_attrs[] = {
4094 &ipr_fw_version_attr,
4095 &ipr_log_level_attr,
4096 &ipr_diagnostics_attr,
4097 &ipr_ioa_state_attr,
4098 &ipr_ioa_reset_attr,
4099 &ipr_update_fw_attr,
4100 &ipr_ioa_fw_type_attr,
4101 &ipr_iopoll_weight_attr,
4105 #ifdef CONFIG_SCSI_IPR_DUMP
4107 * ipr_read_dump - Dump the adapter
4108 * @filp: open sysfs file
4109 * @kobj: kobject struct
4110 * @bin_attr: bin_attribute struct
4113 * @count: buffer size
4116 * number of bytes printed to buffer
4118 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4119 struct bin_attribute *bin_attr,
4120 char *buf, loff_t off, size_t count)
4122 struct device *cdev = container_of(kobj, struct device, kobj);
4123 struct Scsi_Host *shost = class_to_shost(cdev);
4124 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4125 struct ipr_dump *dump;
4126 unsigned long lock_flags = 0;
4131 if (!capable(CAP_SYS_ADMIN))
4134 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4135 dump = ioa_cfg->dump;
4137 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4141 kref_get(&dump->kref);
4142 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4144 if (off > dump->driver_dump.hdr.len) {
4145 kref_put(&dump->kref, ipr_release_dump);
4149 if (off + count > dump->driver_dump.hdr.len) {
4150 count = dump->driver_dump.hdr.len - off;
4154 if (count && off < sizeof(dump->driver_dump)) {
4155 if (off + count > sizeof(dump->driver_dump))
4156 len = sizeof(dump->driver_dump) - off;
4159 src = (u8 *)&dump->driver_dump + off;
4160 memcpy(buf, src, len);
4166 off -= sizeof(dump->driver_dump);
4169 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4170 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4171 sizeof(struct ipr_sdt_entry));
4173 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4174 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4176 if (count && off < sdt_end) {
4177 if (off + count > sdt_end)
4178 len = sdt_end - off;
4181 src = (u8 *)&dump->ioa_dump + off;
4182 memcpy(buf, src, len);
4191 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4192 len = PAGE_ALIGN(off) - off;
4195 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4196 src += off & ~PAGE_MASK;
4197 memcpy(buf, src, len);
4203 kref_put(&dump->kref, ipr_release_dump);
4208 * ipr_alloc_dump - Prepare for adapter dump
4209 * @ioa_cfg: ioa config struct
4212 * 0 on success / other on failure
4214 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4216 struct ipr_dump *dump;
4218 unsigned long lock_flags = 0;
4220 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4223 ipr_err("Dump memory allocation failed\n");
4228 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4230 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4233 ipr_err("Dump memory allocation failed\n");
4238 dump->ioa_dump.ioa_data = ioa_data;
4240 kref_init(&dump->kref);
4241 dump->ioa_cfg = ioa_cfg;
4243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4245 if (INACTIVE != ioa_cfg->sdt_state) {
4246 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4247 vfree(dump->ioa_dump.ioa_data);
4252 ioa_cfg->dump = dump;
4253 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4254 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4255 ioa_cfg->dump_taken = 1;
4256 schedule_work(&ioa_cfg->work_q);
4258 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4264 * ipr_free_dump - Free adapter dump memory
4265 * @ioa_cfg: ioa config struct
4268 * 0 on success / other on failure
4270 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4272 struct ipr_dump *dump;
4273 unsigned long lock_flags = 0;
4277 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4278 dump = ioa_cfg->dump;
4280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4284 ioa_cfg->dump = NULL;
4285 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4287 kref_put(&dump->kref, ipr_release_dump);
4294 * ipr_write_dump - Setup dump state of adapter
4295 * @filp: open sysfs file
4296 * @kobj: kobject struct
4297 * @bin_attr: bin_attribute struct
4300 * @count: buffer size
4303 * number of bytes printed to buffer
4305 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4306 struct bin_attribute *bin_attr,
4307 char *buf, loff_t off, size_t count)
4309 struct device *cdev = container_of(kobj, struct device, kobj);
4310 struct Scsi_Host *shost = class_to_shost(cdev);
4311 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4314 if (!capable(CAP_SYS_ADMIN))
4318 rc = ipr_alloc_dump(ioa_cfg);
4319 else if (buf[0] == '0')
4320 rc = ipr_free_dump(ioa_cfg);
4330 static struct bin_attribute ipr_dump_attr = {
4333 .mode = S_IRUSR | S_IWUSR,
4336 .read = ipr_read_dump,
4337 .write = ipr_write_dump
4340 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4344 * ipr_change_queue_depth - Change the device's queue depth
4345 * @sdev: scsi device struct
4346 * @qdepth: depth to set
4347 * @reason: calling context
4352 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4354 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4355 struct ipr_resource_entry *res;
4356 unsigned long lock_flags = 0;
4358 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4359 res = (struct ipr_resource_entry *)sdev->hostdata;
4361 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4362 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4363 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4365 scsi_change_queue_depth(sdev, qdepth);
4366 return sdev->queue_depth;
4370 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4371 * @dev: device struct
4372 * @attr: device attribute structure
4376 * number of bytes printed to buffer
4378 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4380 struct scsi_device *sdev = to_scsi_device(dev);
4381 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4382 struct ipr_resource_entry *res;
4383 unsigned long lock_flags = 0;
4384 ssize_t len = -ENXIO;
4386 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4387 res = (struct ipr_resource_entry *)sdev->hostdata;
4389 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4390 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4394 static struct device_attribute ipr_adapter_handle_attr = {
4396 .name = "adapter_handle",
4399 .show = ipr_show_adapter_handle
4403 * ipr_show_resource_path - Show the resource path or the resource address for
4405 * @dev: device struct
4406 * @attr: device attribute structure
4410 * number of bytes printed to buffer
4412 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4414 struct scsi_device *sdev = to_scsi_device(dev);
4415 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4416 struct ipr_resource_entry *res;
4417 unsigned long lock_flags = 0;
4418 ssize_t len = -ENXIO;
4419 char buffer[IPR_MAX_RES_PATH_LENGTH];
4421 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4422 res = (struct ipr_resource_entry *)sdev->hostdata;
4423 if (res && ioa_cfg->sis64)
4424 len = snprintf(buf, PAGE_SIZE, "%s\n",
4425 __ipr_format_res_path(res->res_path, buffer,
4428 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4429 res->bus, res->target, res->lun);
4431 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4435 static struct device_attribute ipr_resource_path_attr = {
4437 .name = "resource_path",
4440 .show = ipr_show_resource_path
4444 * ipr_show_device_id - Show the device_id for this device.
4445 * @dev: device struct
4446 * @attr: device attribute structure
4450 * number of bytes printed to buffer
4452 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4454 struct scsi_device *sdev = to_scsi_device(dev);
4455 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4456 struct ipr_resource_entry *res;
4457 unsigned long lock_flags = 0;
4458 ssize_t len = -ENXIO;
4460 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4461 res = (struct ipr_resource_entry *)sdev->hostdata;
4462 if (res && ioa_cfg->sis64)
4463 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4465 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4467 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4471 static struct device_attribute ipr_device_id_attr = {
4473 .name = "device_id",
4476 .show = ipr_show_device_id
4480 * ipr_show_resource_type - Show the resource type for this device.
4481 * @dev: device struct
4482 * @attr: device attribute structure
4486 * number of bytes printed to buffer
4488 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4490 struct scsi_device *sdev = to_scsi_device(dev);
4491 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4492 struct ipr_resource_entry *res;
4493 unsigned long lock_flags = 0;
4494 ssize_t len = -ENXIO;
4496 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4497 res = (struct ipr_resource_entry *)sdev->hostdata;
4500 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4502 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4506 static struct device_attribute ipr_resource_type_attr = {
4508 .name = "resource_type",
4511 .show = ipr_show_resource_type
4515 * ipr_show_raw_mode - Show the adapter's raw mode
4516 * @dev: class device struct
4520 * number of bytes printed to buffer
4522 static ssize_t ipr_show_raw_mode(struct device *dev,
4523 struct device_attribute *attr, char *buf)
4525 struct scsi_device *sdev = to_scsi_device(dev);
4526 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4527 struct ipr_resource_entry *res;
4528 unsigned long lock_flags = 0;
4531 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4532 res = (struct ipr_resource_entry *)sdev->hostdata;
4534 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4537 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4542 * ipr_store_raw_mode - Change the adapter's raw mode
4543 * @dev: class device struct
4547 * number of bytes printed to buffer
4549 static ssize_t ipr_store_raw_mode(struct device *dev,
4550 struct device_attribute *attr,
4551 const char *buf, size_t count)
4553 struct scsi_device *sdev = to_scsi_device(dev);
4554 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4555 struct ipr_resource_entry *res;
4556 unsigned long lock_flags = 0;
4559 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4560 res = (struct ipr_resource_entry *)sdev->hostdata;
4562 if (ipr_is_af_dasd_device(res)) {
4563 res->raw_mode = simple_strtoul(buf, NULL, 10);
4566 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4567 res->raw_mode ? "enabled" : "disabled");
4572 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4576 static struct device_attribute ipr_raw_mode_attr = {
4579 .mode = S_IRUGO | S_IWUSR,
4581 .show = ipr_show_raw_mode,
4582 .store = ipr_store_raw_mode
4585 static struct device_attribute *ipr_dev_attrs[] = {
4586 &ipr_adapter_handle_attr,
4587 &ipr_resource_path_attr,
4588 &ipr_device_id_attr,
4589 &ipr_resource_type_attr,
4595 * ipr_biosparam - Return the HSC mapping
4596 * @sdev: scsi device struct
4597 * @block_device: block device pointer
4598 * @capacity: capacity of the device
4599 * @parm: Array containing returned HSC values.
4601 * This function generates the HSC parms that fdisk uses.
4602 * We want to make sure we return something that places partitions
4603 * on 4k boundaries for best performance with the IOA.
4608 static int ipr_biosparam(struct scsi_device *sdev,
4609 struct block_device *block_device,
4610 sector_t capacity, int *parm)
4618 cylinders = capacity;
4619 sector_div(cylinders, (128 * 32));
4624 parm[2] = cylinders;
4630 * ipr_find_starget - Find target based on bus/target.
4631 * @starget: scsi target struct
4634 * resource entry pointer if found / NULL if not found
4636 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4638 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4639 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4640 struct ipr_resource_entry *res;
4642 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4643 if ((res->bus == starget->channel) &&
4644 (res->target == starget->id)) {
4652 static struct ata_port_info sata_port_info;
4655 * ipr_target_alloc - Prepare for commands to a SCSI target
4656 * @starget: scsi target struct
4658 * If the device is a SATA device, this function allocates an
4659 * ATA port with libata, else it does nothing.
4662 * 0 on success / non-0 on failure
4664 static int ipr_target_alloc(struct scsi_target *starget)
4666 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4667 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4668 struct ipr_sata_port *sata_port;
4669 struct ata_port *ap;
4670 struct ipr_resource_entry *res;
4671 unsigned long lock_flags;
4673 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4674 res = ipr_find_starget(starget);
4675 starget->hostdata = NULL;
4677 if (res && ipr_is_gata(res)) {
4678 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4679 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4683 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4685 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4686 sata_port->ioa_cfg = ioa_cfg;
4688 sata_port->res = res;
4690 res->sata_port = sata_port;
4691 ap->private_data = sata_port;
4692 starget->hostdata = sata_port;
4698 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4704 * ipr_target_destroy - Destroy a SCSI target
4705 * @starget: scsi target struct
4707 * If the device was a SATA device, this function frees the libata
4708 * ATA port, else it does nothing.
4711 static void ipr_target_destroy(struct scsi_target *starget)
4713 struct ipr_sata_port *sata_port = starget->hostdata;
4714 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4715 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4717 if (ioa_cfg->sis64) {
4718 if (!ipr_find_starget(starget)) {
4719 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4720 clear_bit(starget->id, ioa_cfg->array_ids);
4721 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4722 clear_bit(starget->id, ioa_cfg->vset_ids);
4723 else if (starget->channel == 0)
4724 clear_bit(starget->id, ioa_cfg->target_ids);
4729 starget->hostdata = NULL;
4730 ata_sas_port_destroy(sata_port->ap);
4736 * ipr_find_sdev - Find device based on bus/target/lun.
4737 * @sdev: scsi device struct
4740 * resource entry pointer if found / NULL if not found
4742 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4744 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4745 struct ipr_resource_entry *res;
4747 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4748 if ((res->bus == sdev->channel) &&
4749 (res->target == sdev->id) &&
4750 (res->lun == sdev->lun))
4758 * ipr_slave_destroy - Unconfigure a SCSI device
4759 * @sdev: scsi device struct
4764 static void ipr_slave_destroy(struct scsi_device *sdev)
4766 struct ipr_resource_entry *res;
4767 struct ipr_ioa_cfg *ioa_cfg;
4768 unsigned long lock_flags = 0;
4770 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4772 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4773 res = (struct ipr_resource_entry *) sdev->hostdata;
4776 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4777 sdev->hostdata = NULL;
4779 res->sata_port = NULL;
4781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4785 * ipr_slave_configure - Configure a SCSI device
4786 * @sdev: scsi device struct
4788 * This function configures the specified scsi device.
4793 static int ipr_slave_configure(struct scsi_device *sdev)
4795 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4796 struct ipr_resource_entry *res;
4797 struct ata_port *ap = NULL;
4798 unsigned long lock_flags = 0;
4799 char buffer[IPR_MAX_RES_PATH_LENGTH];
4801 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4802 res = sdev->hostdata;
4804 if (ipr_is_af_dasd_device(res))
4805 sdev->type = TYPE_RAID;
4806 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4807 sdev->scsi_level = 4;
4808 sdev->no_uld_attach = 1;
4810 if (ipr_is_vset_device(res)) {
4811 sdev->scsi_level = SCSI_SPC_3;
4812 blk_queue_rq_timeout(sdev->request_queue,
4813 IPR_VSET_RW_TIMEOUT);
4814 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4816 if (ipr_is_gata(res) && res->sata_port)
4817 ap = res->sata_port->ap;
4818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4821 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4822 ata_sas_slave_configure(sdev, ap);
4826 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4827 ipr_format_res_path(ioa_cfg,
4828 res->res_path, buffer, sizeof(buffer)));
4831 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4836 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4837 * @sdev: scsi device struct
4839 * This function initializes an ATA port so that future commands
4840 * sent through queuecommand will work.
4845 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4847 struct ipr_sata_port *sata_port = NULL;
4851 if (sdev->sdev_target)
4852 sata_port = sdev->sdev_target->hostdata;
4854 rc = ata_sas_port_init(sata_port->ap);
4856 rc = ata_sas_sync_probe(sata_port->ap);
4860 ipr_slave_destroy(sdev);
4867 * ipr_slave_alloc - Prepare for commands to a device.
4868 * @sdev: scsi device struct
4870 * This function saves a pointer to the resource entry
4871 * in the scsi device struct if the device exists. We
4872 * can then use this pointer in ipr_queuecommand when
4873 * handling new commands.
4876 * 0 on success / -ENXIO if device does not exist
4878 static int ipr_slave_alloc(struct scsi_device *sdev)
4880 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4881 struct ipr_resource_entry *res;
4882 unsigned long lock_flags;
4885 sdev->hostdata = NULL;
4887 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4889 res = ipr_find_sdev(sdev);
4894 sdev->hostdata = res;
4895 if (!ipr_is_naca_model(res))
4896 res->needs_sync_complete = 1;
4898 if (ipr_is_gata(res)) {
4899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4900 return ipr_ata_slave_alloc(sdev);
4904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4910 * ipr_match_lun - Match function for specified LUN
4911 * @ipr_cmd: ipr command struct
4912 * @device: device to match (sdev)
4915 * 1 if command matches sdev / 0 if command does not match sdev
4917 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4919 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4925 * ipr_wait_for_ops - Wait for matching commands to complete
4926 * @ipr_cmd: ipr command struct
4927 * @device: device to match (sdev)
4928 * @match: match function to use
4933 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4934 int (*match)(struct ipr_cmnd *, void *))
4936 struct ipr_cmnd *ipr_cmd;
4938 unsigned long flags;
4939 struct ipr_hrr_queue *hrrq;
4940 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4941 DECLARE_COMPLETION_ONSTACK(comp);
4947 for_each_hrrq(hrrq, ioa_cfg) {
4948 spin_lock_irqsave(hrrq->lock, flags);
4949 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4950 if (match(ipr_cmd, device)) {
4951 ipr_cmd->eh_comp = ∁
4955 spin_unlock_irqrestore(hrrq->lock, flags);
4959 timeout = wait_for_completion_timeout(&comp, timeout);
4964 for_each_hrrq(hrrq, ioa_cfg) {
4965 spin_lock_irqsave(hrrq->lock, flags);
4966 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4967 if (match(ipr_cmd, device)) {
4968 ipr_cmd->eh_comp = NULL;
4972 spin_unlock_irqrestore(hrrq->lock, flags);
4976 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4978 return wait ? FAILED : SUCCESS;
4987 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
4989 struct ipr_ioa_cfg *ioa_cfg;
4990 unsigned long lock_flags = 0;
4994 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4995 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4997 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4998 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4999 dev_err(&ioa_cfg->pdev->dev,
5000 "Adapter being reset as a result of error recovery.\n");
5002 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5003 ioa_cfg->sdt_state = GET_DUMP;
5006 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5007 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5008 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5010 /* If we got hit with a host reset while we were already resetting
5011 the adapter for some reason, and the reset failed. */
5012 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5017 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5023 * ipr_device_reset - Reset the device
5024 * @ioa_cfg: ioa config struct
5025 * @res: resource entry struct
5027 * This function issues a device reset to the affected device.
5028 * If the device is a SCSI device, a LUN reset will be sent
5029 * to the device first. If that does not work, a target reset
5030 * will be sent. If the device is a SATA device, a PHY reset will
5034 * 0 on success / non-zero on failure
5036 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5037 struct ipr_resource_entry *res)
5039 struct ipr_cmnd *ipr_cmd;
5040 struct ipr_ioarcb *ioarcb;
5041 struct ipr_cmd_pkt *cmd_pkt;
5042 struct ipr_ioarcb_ata_regs *regs;
5046 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5047 ioarcb = &ipr_cmd->ioarcb;
5048 cmd_pkt = &ioarcb->cmd_pkt;
5050 if (ipr_cmd->ioa_cfg->sis64) {
5051 regs = &ipr_cmd->i.ata_ioadl.regs;
5052 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5054 regs = &ioarcb->u.add_data.u.regs;
5056 ioarcb->res_handle = res->res_handle;
5057 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5058 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5059 if (ipr_is_gata(res)) {
5060 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5061 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5062 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5065 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5066 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5067 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5068 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5069 if (ipr_cmd->ioa_cfg->sis64)
5070 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5071 sizeof(struct ipr_ioasa_gata));
5073 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5074 sizeof(struct ipr_ioasa_gata));
5078 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5082 * ipr_sata_reset - Reset the SATA port
5083 * @link: SATA link to reset
5084 * @classes: class of the attached device
5086 * This function issues a SATA phy reset to the affected ATA link.
5089 * 0 on success / non-zero on failure
5091 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5092 unsigned long deadline)
5094 struct ipr_sata_port *sata_port = link->ap->private_data;
5095 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5096 struct ipr_resource_entry *res;
5097 unsigned long lock_flags = 0;
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5102 while (ioa_cfg->in_reset_reload) {
5103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5104 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5108 res = sata_port->res;
5110 rc = ipr_device_reset(ioa_cfg, res);
5111 *classes = res->ata_class;
5114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5120 * ipr_eh_dev_reset - Reset the device
5121 * @scsi_cmd: scsi command struct
5123 * This function issues a device reset to the affected device.
5124 * A LUN reset will be sent to the device first. If that does
5125 * not work, a target reset will be sent.
5130 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5132 struct ipr_cmnd *ipr_cmd;
5133 struct ipr_ioa_cfg *ioa_cfg;
5134 struct ipr_resource_entry *res;
5135 struct ata_port *ap;
5137 struct ipr_hrr_queue *hrrq;
5140 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5141 res = scsi_cmd->device->hostdata;
5147 * If we are currently going through reset/reload, return failed. This will force the
5148 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5151 if (ioa_cfg->in_reset_reload)
5153 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5156 for_each_hrrq(hrrq, ioa_cfg) {
5157 spin_lock(&hrrq->_lock);
5158 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5159 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5160 if (ipr_cmd->scsi_cmd)
5161 ipr_cmd->done = ipr_scsi_eh_done;
5163 ipr_cmd->done = ipr_sata_eh_done;
5165 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5166 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5167 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5171 spin_unlock(&hrrq->_lock);
5173 res->resetting_device = 1;
5174 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5176 if (ipr_is_gata(res) && res->sata_port) {
5177 ap = res->sata_port->ap;
5178 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5179 ata_std_error_handler(ap);
5180 spin_lock_irq(scsi_cmd->device->host->host_lock);
5182 for_each_hrrq(hrrq, ioa_cfg) {
5183 spin_lock(&hrrq->_lock);
5184 list_for_each_entry(ipr_cmd,
5185 &hrrq->hrrq_pending_q, queue) {
5186 if (ipr_cmd->ioarcb.res_handle ==
5192 spin_unlock(&hrrq->_lock);
5195 rc = ipr_device_reset(ioa_cfg, res);
5196 res->resetting_device = 0;
5197 res->reset_occurred = 1;
5200 return rc ? FAILED : SUCCESS;
5203 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5206 struct ipr_ioa_cfg *ioa_cfg;
5208 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5210 spin_lock_irq(cmd->device->host->host_lock);
5211 rc = __ipr_eh_dev_reset(cmd);
5212 spin_unlock_irq(cmd->device->host->host_lock);
5215 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5221 * ipr_bus_reset_done - Op done function for bus reset.
5222 * @ipr_cmd: ipr command struct
5224 * This function is the op done function for a bus reset
5229 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5231 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5232 struct ipr_resource_entry *res;
5235 if (!ioa_cfg->sis64)
5236 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5237 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5238 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5244 * If abort has not completed, indicate the reset has, else call the
5245 * abort's done function to wake the sleeping eh thread
5247 if (ipr_cmd->sibling->sibling)
5248 ipr_cmd->sibling->sibling = NULL;
5250 ipr_cmd->sibling->done(ipr_cmd->sibling);
5252 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5257 * ipr_abort_timeout - An abort task has timed out
5258 * @ipr_cmd: ipr command struct
5260 * This function handles when an abort task times out. If this
5261 * happens we issue a bus reset since we have resources tied
5262 * up that must be freed before returning to the midlayer.
5267 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5269 struct ipr_cmnd *reset_cmd;
5270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5271 struct ipr_cmd_pkt *cmd_pkt;
5272 unsigned long lock_flags = 0;
5275 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5276 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5277 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5281 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5282 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5283 ipr_cmd->sibling = reset_cmd;
5284 reset_cmd->sibling = ipr_cmd;
5285 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5286 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5287 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5288 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5289 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5291 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5297 * ipr_cancel_op - Cancel specified op
5298 * @scsi_cmd: scsi command struct
5300 * This function cancels specified op.
5305 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5307 struct ipr_cmnd *ipr_cmd;
5308 struct ipr_ioa_cfg *ioa_cfg;
5309 struct ipr_resource_entry *res;
5310 struct ipr_cmd_pkt *cmd_pkt;
5313 struct ipr_hrr_queue *hrrq;
5316 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5317 res = scsi_cmd->device->hostdata;
5319 /* If we are currently going through reset/reload, return failed.
5320 * This will force the mid-layer to call ipr_eh_host_reset,
5321 * which will then go to sleep and wait for the reset to complete
5323 if (ioa_cfg->in_reset_reload ||
5324 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5330 * If we are aborting a timed out op, chances are that the timeout was caused
5331 * by a still not detected EEH error. In such cases, reading a register will
5332 * trigger the EEH recovery infrastructure.
5334 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5336 if (!ipr_is_gscsi(res))
5339 for_each_hrrq(hrrq, ioa_cfg) {
5340 spin_lock(&hrrq->_lock);
5341 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5342 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5343 ipr_cmd->done = ipr_scsi_eh_done;
5348 spin_unlock(&hrrq->_lock);
5354 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5355 ipr_cmd->ioarcb.res_handle = res->res_handle;
5356 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5357 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5358 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5359 ipr_cmd->u.sdev = scsi_cmd->device;
5361 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5363 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5364 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5367 * If the abort task timed out and we sent a bus reset, we will get
5368 * one the following responses to the abort
5370 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5375 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5376 if (!ipr_is_naca_model(res))
5377 res->needs_sync_complete = 1;
5380 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5384 * ipr_eh_abort - Abort a single op
5385 * @scsi_cmd: scsi command struct
5388 * 0 if scan in progress / 1 if scan is complete
5390 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5392 unsigned long lock_flags;
5393 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5396 spin_lock_irqsave(shost->host_lock, lock_flags);
5397 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5399 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5401 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5406 * ipr_eh_host_reset - Reset the host adapter
5407 * @scsi_cmd: scsi command struct
5412 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5414 unsigned long flags;
5416 struct ipr_ioa_cfg *ioa_cfg;
5420 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5422 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5423 rc = ipr_cancel_op(scsi_cmd);
5424 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5427 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5433 * ipr_handle_other_interrupt - Handle "other" interrupts
5434 * @ioa_cfg: ioa config struct
5435 * @int_reg: interrupt register
5438 * IRQ_NONE / IRQ_HANDLED
5440 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5443 irqreturn_t rc = IRQ_HANDLED;
5446 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5447 int_reg &= ~int_mask_reg;
5449 /* If an interrupt on the adapter did not occur, ignore it.
5450 * Or in the case of SIS 64, check for a stage change interrupt.
5452 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5453 if (ioa_cfg->sis64) {
5454 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5455 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5456 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5458 /* clear stage change */
5459 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5460 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5461 list_del(&ioa_cfg->reset_cmd->queue);
5462 del_timer(&ioa_cfg->reset_cmd->timer);
5463 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5471 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5472 /* Mask the interrupt */
5473 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5474 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5476 list_del(&ioa_cfg->reset_cmd->queue);
5477 del_timer(&ioa_cfg->reset_cmd->timer);
5478 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5479 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5480 if (ioa_cfg->clear_isr) {
5481 if (ipr_debug && printk_ratelimit())
5482 dev_err(&ioa_cfg->pdev->dev,
5483 "Spurious interrupt detected. 0x%08X\n", int_reg);
5484 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5485 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5489 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5490 ioa_cfg->ioa_unit_checked = 1;
5491 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5492 dev_err(&ioa_cfg->pdev->dev,
5493 "No Host RRQ. 0x%08X\n", int_reg);
5495 dev_err(&ioa_cfg->pdev->dev,
5496 "Permanent IOA failure. 0x%08X\n", int_reg);
5498 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5499 ioa_cfg->sdt_state = GET_DUMP;
5501 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5502 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5509 * ipr_isr_eh - Interrupt service routine error handler
5510 * @ioa_cfg: ioa config struct
5511 * @msg: message to log
5516 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5518 ioa_cfg->errors_logged++;
5519 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5521 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5522 ioa_cfg->sdt_state = GET_DUMP;
5524 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5527 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5528 struct list_head *doneq)
5532 struct ipr_cmnd *ipr_cmd;
5533 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5536 /* If interrupts are disabled, ignore the interrupt */
5537 if (!hrr_queue->allow_interrupts)
5540 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5541 hrr_queue->toggle_bit) {
5543 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5544 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5545 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5547 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5548 cmd_index < hrr_queue->min_cmd_id)) {
5550 "Invalid response handle from IOA: ",
5555 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5556 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5558 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5560 list_move_tail(&ipr_cmd->queue, doneq);
5562 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5563 hrr_queue->hrrq_curr++;
5565 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5566 hrr_queue->toggle_bit ^= 1u;
5569 if (budget > 0 && num_hrrq >= budget)
5576 static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5578 struct ipr_ioa_cfg *ioa_cfg;
5579 struct ipr_hrr_queue *hrrq;
5580 struct ipr_cmnd *ipr_cmd, *temp;
5581 unsigned long hrrq_flags;
5585 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5586 ioa_cfg = hrrq->ioa_cfg;
5588 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5589 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5591 if (completed_ops < budget)
5592 blk_iopoll_complete(iop);
5593 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5595 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5596 list_del(&ipr_cmd->queue);
5597 del_timer(&ipr_cmd->timer);
5598 ipr_cmd->fast_done(ipr_cmd);
5601 return completed_ops;
5605 * ipr_isr - Interrupt service routine
5607 * @devp: pointer to ioa config struct
5610 * IRQ_NONE / IRQ_HANDLED
5612 static irqreturn_t ipr_isr(int irq, void *devp)
5614 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5615 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5616 unsigned long hrrq_flags = 0;
5620 struct ipr_cmnd *ipr_cmd, *temp;
5621 irqreturn_t rc = IRQ_NONE;
5624 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5625 /* If interrupts are disabled, ignore the interrupt */
5626 if (!hrrq->allow_interrupts) {
5627 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5632 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5635 if (!ioa_cfg->clear_isr)
5638 /* Clear the PCI interrupt */
5641 writel(IPR_PCII_HRRQ_UPDATED,
5642 ioa_cfg->regs.clr_interrupt_reg32);
5643 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5644 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5645 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5647 } else if (rc == IRQ_NONE && irq_none == 0) {
5648 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5650 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5651 int_reg & IPR_PCII_HRRQ_UPDATED) {
5653 "Error clearing HRRQ: ", num_hrrq);
5660 if (unlikely(rc == IRQ_NONE))
5661 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5663 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5664 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5665 list_del(&ipr_cmd->queue);
5666 del_timer(&ipr_cmd->timer);
5667 ipr_cmd->fast_done(ipr_cmd);
5673 * ipr_isr_mhrrq - Interrupt service routine
5675 * @devp: pointer to ioa config struct
5678 * IRQ_NONE / IRQ_HANDLED
5680 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5682 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5683 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5684 unsigned long hrrq_flags = 0;
5685 struct ipr_cmnd *ipr_cmd, *temp;
5686 irqreturn_t rc = IRQ_NONE;
5689 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5691 /* If interrupts are disabled, ignore the interrupt */
5692 if (!hrrq->allow_interrupts) {
5693 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5697 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5698 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5700 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5701 blk_iopoll_sched(&hrrq->iopoll);
5702 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5706 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5709 if (ipr_process_hrrq(hrrq, -1, &doneq))
5713 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5715 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5716 list_del(&ipr_cmd->queue);
5717 del_timer(&ipr_cmd->timer);
5718 ipr_cmd->fast_done(ipr_cmd);
5724 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5725 * @ioa_cfg: ioa config struct
5726 * @ipr_cmd: ipr command struct
5729 * 0 on success / -1 on failure
5731 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5732 struct ipr_cmnd *ipr_cmd)
5735 struct scatterlist *sg;
5737 u32 ioadl_flags = 0;
5738 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5739 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5740 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5742 length = scsi_bufflen(scsi_cmd);
5746 nseg = scsi_dma_map(scsi_cmd);
5748 if (printk_ratelimit())
5749 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5753 ipr_cmd->dma_use_sg = nseg;
5755 ioarcb->data_transfer_length = cpu_to_be32(length);
5757 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5759 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5760 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5761 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5762 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5763 ioadl_flags = IPR_IOADL_FLAGS_READ;
5765 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5766 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5767 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5768 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5771 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5776 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5777 * @ioa_cfg: ioa config struct
5778 * @ipr_cmd: ipr command struct
5781 * 0 on success / -1 on failure
5783 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5784 struct ipr_cmnd *ipr_cmd)
5787 struct scatterlist *sg;
5789 u32 ioadl_flags = 0;
5790 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5791 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5792 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5794 length = scsi_bufflen(scsi_cmd);
5798 nseg = scsi_dma_map(scsi_cmd);
5800 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5804 ipr_cmd->dma_use_sg = nseg;
5806 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5807 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5808 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5809 ioarcb->data_transfer_length = cpu_to_be32(length);
5811 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5812 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5813 ioadl_flags = IPR_IOADL_FLAGS_READ;
5814 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5815 ioarcb->read_ioadl_len =
5816 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5819 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5820 ioadl = ioarcb->u.add_data.u.ioadl;
5821 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5822 offsetof(struct ipr_ioarcb, u.add_data));
5823 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5826 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5827 ioadl[i].flags_and_data_len =
5828 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5829 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5832 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5837 * ipr_erp_done - Process completion of ERP for a device
5838 * @ipr_cmd: ipr command struct
5840 * This function copies the sense buffer into the scsi_cmd
5841 * struct and pushes the scsi_done function.
5846 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5848 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5849 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5850 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5852 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5853 scsi_cmd->result |= (DID_ERROR << 16);
5854 scmd_printk(KERN_ERR, scsi_cmd,
5855 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5857 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5858 SCSI_SENSE_BUFFERSIZE);
5862 if (!ipr_is_naca_model(res))
5863 res->needs_sync_complete = 1;
5866 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5867 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5868 scsi_cmd->scsi_done(scsi_cmd);
5872 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5873 * @ipr_cmd: ipr command struct
5878 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5880 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5881 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5882 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5884 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5885 ioarcb->data_transfer_length = 0;
5886 ioarcb->read_data_transfer_length = 0;
5887 ioarcb->ioadl_len = 0;
5888 ioarcb->read_ioadl_len = 0;
5889 ioasa->hdr.ioasc = 0;
5890 ioasa->hdr.residual_data_len = 0;
5892 if (ipr_cmd->ioa_cfg->sis64)
5893 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5894 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5896 ioarcb->write_ioadl_addr =
5897 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5898 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5903 * ipr_erp_request_sense - Send request sense to a device
5904 * @ipr_cmd: ipr command struct
5906 * This function sends a request sense to a device as a result
5907 * of a check condition.
5912 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5914 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5915 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5917 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5918 ipr_erp_done(ipr_cmd);
5922 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5924 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5925 cmd_pkt->cdb[0] = REQUEST_SENSE;
5926 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5927 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5928 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5929 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5931 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5932 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5934 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5935 IPR_REQUEST_SENSE_TIMEOUT * 2);
5939 * ipr_erp_cancel_all - Send cancel all to a device
5940 * @ipr_cmd: ipr command struct
5942 * This function sends a cancel all to a device to clear the
5943 * queue. If we are running TCQ on the device, QERR is set to 1,
5944 * which means all outstanding ops have been dropped on the floor.
5945 * Cancel all will return them to us.
5950 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5952 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5953 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5954 struct ipr_cmd_pkt *cmd_pkt;
5958 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5960 if (!scsi_cmd->device->simple_tags) {
5961 ipr_erp_request_sense(ipr_cmd);
5965 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5966 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5967 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5969 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5970 IPR_CANCEL_ALL_TIMEOUT);
5974 * ipr_dump_ioasa - Dump contents of IOASA
5975 * @ioa_cfg: ioa config struct
5976 * @ipr_cmd: ipr command struct
5977 * @res: resource entry struct
5979 * This function is invoked by the interrupt handler when ops
5980 * fail. It will log the IOASA if appropriate. Only called
5986 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5987 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5991 u32 ioasc, fd_ioasc;
5992 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5993 __be32 *ioasa_data = (__be32 *)ioasa;
5996 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5997 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
6002 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6005 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6006 error_index = ipr_get_error(fd_ioasc);
6008 error_index = ipr_get_error(ioasc);
6010 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6011 /* Don't log an error if the IOA already logged one */
6012 if (ioasa->hdr.ilid != 0)
6015 if (!ipr_is_gscsi(res))
6018 if (ipr_error_table[error_index].log_ioasa == 0)
6022 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6024 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6025 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6026 data_len = sizeof(struct ipr_ioasa64);
6027 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6028 data_len = sizeof(struct ipr_ioasa);
6030 ipr_err("IOASA Dump:\n");
6032 for (i = 0; i < data_len / 4; i += 4) {
6033 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6034 be32_to_cpu(ioasa_data[i]),
6035 be32_to_cpu(ioasa_data[i+1]),
6036 be32_to_cpu(ioasa_data[i+2]),
6037 be32_to_cpu(ioasa_data[i+3]));
6042 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6044 * @sense_buf: sense data buffer
6049 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6052 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6053 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6054 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6055 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6057 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6059 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6062 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6064 if (ipr_is_vset_device(res) &&
6065 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6066 ioasa->u.vset.failing_lba_hi != 0) {
6067 sense_buf[0] = 0x72;
6068 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6069 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6070 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6074 sense_buf[9] = 0x0A;
6075 sense_buf[10] = 0x80;
6077 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6079 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6080 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6081 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6082 sense_buf[15] = failing_lba & 0x000000ff;
6084 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6086 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6087 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6088 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6089 sense_buf[19] = failing_lba & 0x000000ff;
6091 sense_buf[0] = 0x70;
6092 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6093 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6094 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6096 /* Illegal request */
6097 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6098 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6099 sense_buf[7] = 10; /* additional length */
6101 /* IOARCB was in error */
6102 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6103 sense_buf[15] = 0xC0;
6104 else /* Parameter data was invalid */
6105 sense_buf[15] = 0x80;
6108 ((IPR_FIELD_POINTER_MASK &
6109 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6111 (IPR_FIELD_POINTER_MASK &
6112 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6114 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6115 if (ipr_is_vset_device(res))
6116 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6118 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6120 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6121 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6122 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6123 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6124 sense_buf[6] = failing_lba & 0x000000ff;
6127 sense_buf[7] = 6; /* additional length */
6133 * ipr_get_autosense - Copy autosense data to sense buffer
6134 * @ipr_cmd: ipr command struct
6136 * This function copies the autosense buffer to the buffer
6137 * in the scsi_cmd, if there is autosense available.
6140 * 1 if autosense was available / 0 if not
6142 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6144 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6145 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6147 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6150 if (ipr_cmd->ioa_cfg->sis64)
6151 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6152 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6153 SCSI_SENSE_BUFFERSIZE));
6155 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6156 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6157 SCSI_SENSE_BUFFERSIZE));
6162 * ipr_erp_start - Process an error response for a SCSI op
6163 * @ioa_cfg: ioa config struct
6164 * @ipr_cmd: ipr command struct
6166 * This function determines whether or not to initiate ERP
6167 * on the affected device.
6172 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6173 struct ipr_cmnd *ipr_cmd)
6175 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6176 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6177 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6178 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6181 ipr_scsi_eh_done(ipr_cmd);
6185 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6186 ipr_gen_sense(ipr_cmd);
6188 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6190 switch (masked_ioasc) {
6191 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6192 if (ipr_is_naca_model(res))
6193 scsi_cmd->result |= (DID_ABORT << 16);
6195 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6197 case IPR_IOASC_IR_RESOURCE_HANDLE:
6198 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6199 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6201 case IPR_IOASC_HW_SEL_TIMEOUT:
6202 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6203 if (!ipr_is_naca_model(res))
6204 res->needs_sync_complete = 1;
6206 case IPR_IOASC_SYNC_REQUIRED:
6208 res->needs_sync_complete = 1;
6209 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6211 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6212 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6213 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6215 case IPR_IOASC_BUS_WAS_RESET:
6216 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6218 * Report the bus reset and ask for a retry. The device
6219 * will give CC/UA the next command.
6221 if (!res->resetting_device)
6222 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6223 scsi_cmd->result |= (DID_ERROR << 16);
6224 if (!ipr_is_naca_model(res))
6225 res->needs_sync_complete = 1;
6227 case IPR_IOASC_HW_DEV_BUS_STATUS:
6228 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6229 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6230 if (!ipr_get_autosense(ipr_cmd)) {
6231 if (!ipr_is_naca_model(res)) {
6232 ipr_erp_cancel_all(ipr_cmd);
6237 if (!ipr_is_naca_model(res))
6238 res->needs_sync_complete = 1;
6240 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6242 case IPR_IOASC_IR_NON_OPTIMIZED:
6243 if (res->raw_mode) {
6245 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6247 scsi_cmd->result |= (DID_ERROR << 16);
6250 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6251 scsi_cmd->result |= (DID_ERROR << 16);
6252 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6253 res->needs_sync_complete = 1;
6257 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6258 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6259 scsi_cmd->scsi_done(scsi_cmd);
6263 * ipr_scsi_done - mid-layer done function
6264 * @ipr_cmd: ipr command struct
6266 * This function is invoked by the interrupt handler for
6267 * ops generated by the SCSI mid-layer
6272 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6274 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6275 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6276 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6277 unsigned long lock_flags;
6279 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6281 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6282 scsi_dma_unmap(scsi_cmd);
6284 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6285 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6286 scsi_cmd->scsi_done(scsi_cmd);
6287 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6289 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6290 spin_lock(&ipr_cmd->hrrq->_lock);
6291 ipr_erp_start(ioa_cfg, ipr_cmd);
6292 spin_unlock(&ipr_cmd->hrrq->_lock);
6293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6298 * ipr_queuecommand - Queue a mid-layer request
6299 * @shost: scsi host struct
6300 * @scsi_cmd: scsi command struct
6302 * This function queues a request generated by the mid-layer.
6306 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6307 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6309 static int ipr_queuecommand(struct Scsi_Host *shost,
6310 struct scsi_cmnd *scsi_cmd)
6312 struct ipr_ioa_cfg *ioa_cfg;
6313 struct ipr_resource_entry *res;
6314 struct ipr_ioarcb *ioarcb;
6315 struct ipr_cmnd *ipr_cmd;
6316 unsigned long hrrq_flags, lock_flags;
6318 struct ipr_hrr_queue *hrrq;
6321 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6323 scsi_cmd->result = (DID_OK << 16);
6324 res = scsi_cmd->device->hostdata;
6326 if (ipr_is_gata(res) && res->sata_port) {
6327 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6328 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6329 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6333 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6334 hrrq = &ioa_cfg->hrrq[hrrq_id];
6336 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6338 * We are currently blocking all devices due to a host reset
6339 * We have told the host to stop giving us new requests, but
6340 * ERP ops don't count. FIXME
6342 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6343 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6344 return SCSI_MLQUEUE_HOST_BUSY;
6348 * FIXME - Create scsi_set_host_offline interface
6349 * and the ioa_is_dead check can be removed
6351 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6352 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6356 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6357 if (ipr_cmd == NULL) {
6358 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6359 return SCSI_MLQUEUE_HOST_BUSY;
6361 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6363 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6364 ioarcb = &ipr_cmd->ioarcb;
6366 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6367 ipr_cmd->scsi_cmd = scsi_cmd;
6368 ipr_cmd->done = ipr_scsi_eh_done;
6370 if (ipr_is_gscsi(res)) {
6371 if (scsi_cmd->underflow == 0)
6372 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6374 if (res->reset_occurred) {
6375 res->reset_occurred = 0;
6376 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6380 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6381 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6383 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6384 if (scsi_cmd->flags & SCMD_TAGGED)
6385 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6387 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6390 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6391 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6392 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6394 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6395 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6397 if (scsi_cmd->underflow == 0)
6398 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6402 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6404 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6406 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6407 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6408 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6409 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6411 scsi_dma_unmap(scsi_cmd);
6412 return SCSI_MLQUEUE_HOST_BUSY;
6415 if (unlikely(hrrq->ioa_is_dead)) {
6416 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6417 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6418 scsi_dma_unmap(scsi_cmd);
6422 ioarcb->res_handle = res->res_handle;
6423 if (res->needs_sync_complete) {
6424 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6425 res->needs_sync_complete = 0;
6427 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6428 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6429 ipr_send_command(ipr_cmd);
6430 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6434 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6435 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6436 scsi_cmd->result = (DID_NO_CONNECT << 16);
6437 scsi_cmd->scsi_done(scsi_cmd);
6438 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6443 * ipr_ioctl - IOCTL handler
6444 * @sdev: scsi device struct
6449 * 0 on success / other on failure
6451 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6453 struct ipr_resource_entry *res;
6455 res = (struct ipr_resource_entry *)sdev->hostdata;
6456 if (res && ipr_is_gata(res)) {
6457 if (cmd == HDIO_GET_IDENTITY)
6459 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6466 * ipr_info - Get information about the card/driver
6467 * @scsi_host: scsi host struct
6470 * pointer to buffer with description string
6472 static const char *ipr_ioa_info(struct Scsi_Host *host)
6474 static char buffer[512];
6475 struct ipr_ioa_cfg *ioa_cfg;
6476 unsigned long lock_flags = 0;
6478 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6480 spin_lock_irqsave(host->host_lock, lock_flags);
6481 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6482 spin_unlock_irqrestore(host->host_lock, lock_flags);
6487 static struct scsi_host_template driver_template = {
6488 .module = THIS_MODULE,
6490 .info = ipr_ioa_info,
6492 .queuecommand = ipr_queuecommand,
6493 .eh_abort_handler = ipr_eh_abort,
6494 .eh_device_reset_handler = ipr_eh_dev_reset,
6495 .eh_host_reset_handler = ipr_eh_host_reset,
6496 .slave_alloc = ipr_slave_alloc,
6497 .slave_configure = ipr_slave_configure,
6498 .slave_destroy = ipr_slave_destroy,
6499 .scan_finished = ipr_scan_finished,
6500 .target_alloc = ipr_target_alloc,
6501 .target_destroy = ipr_target_destroy,
6502 .change_queue_depth = ipr_change_queue_depth,
6503 .bios_param = ipr_biosparam,
6504 .can_queue = IPR_MAX_COMMANDS,
6506 .sg_tablesize = IPR_MAX_SGLIST,
6507 .max_sectors = IPR_IOA_MAX_SECTORS,
6508 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6509 .use_clustering = ENABLE_CLUSTERING,
6510 .shost_attrs = ipr_ioa_attrs,
6511 .sdev_attrs = ipr_dev_attrs,
6512 .proc_name = IPR_NAME,
6516 * ipr_ata_phy_reset - libata phy_reset handler
6517 * @ap: ata port to reset
6520 static void ipr_ata_phy_reset(struct ata_port *ap)
6522 unsigned long flags;
6523 struct ipr_sata_port *sata_port = ap->private_data;
6524 struct ipr_resource_entry *res = sata_port->res;
6525 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6529 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6530 while (ioa_cfg->in_reset_reload) {
6531 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6532 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6533 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6536 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6539 rc = ipr_device_reset(ioa_cfg, res);
6542 ap->link.device[0].class = ATA_DEV_NONE;
6546 ap->link.device[0].class = res->ata_class;
6547 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6548 ap->link.device[0].class = ATA_DEV_NONE;
6551 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6556 * ipr_ata_post_internal - Cleanup after an internal command
6557 * @qc: ATA queued command
6562 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6564 struct ipr_sata_port *sata_port = qc->ap->private_data;
6565 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6566 struct ipr_cmnd *ipr_cmd;
6567 struct ipr_hrr_queue *hrrq;
6568 unsigned long flags;
6570 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6571 while (ioa_cfg->in_reset_reload) {
6572 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6573 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6574 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6577 for_each_hrrq(hrrq, ioa_cfg) {
6578 spin_lock(&hrrq->_lock);
6579 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6580 if (ipr_cmd->qc == qc) {
6581 ipr_device_reset(ioa_cfg, sata_port->res);
6585 spin_unlock(&hrrq->_lock);
6587 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6591 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6592 * @regs: destination
6593 * @tf: source ATA taskfile
6598 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6599 struct ata_taskfile *tf)
6601 regs->feature = tf->feature;
6602 regs->nsect = tf->nsect;
6603 regs->lbal = tf->lbal;
6604 regs->lbam = tf->lbam;
6605 regs->lbah = tf->lbah;
6606 regs->device = tf->device;
6607 regs->command = tf->command;
6608 regs->hob_feature = tf->hob_feature;
6609 regs->hob_nsect = tf->hob_nsect;
6610 regs->hob_lbal = tf->hob_lbal;
6611 regs->hob_lbam = tf->hob_lbam;
6612 regs->hob_lbah = tf->hob_lbah;
6613 regs->ctl = tf->ctl;
6617 * ipr_sata_done - done function for SATA commands
6618 * @ipr_cmd: ipr command struct
6620 * This function is invoked by the interrupt handler for
6621 * ops generated by the SCSI mid-layer to SATA devices
6626 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6629 struct ata_queued_cmd *qc = ipr_cmd->qc;
6630 struct ipr_sata_port *sata_port = qc->ap->private_data;
6631 struct ipr_resource_entry *res = sata_port->res;
6632 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6634 spin_lock(&ipr_cmd->hrrq->_lock);
6635 if (ipr_cmd->ioa_cfg->sis64)
6636 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6637 sizeof(struct ipr_ioasa_gata));
6639 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6640 sizeof(struct ipr_ioasa_gata));
6641 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6643 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6644 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6646 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6647 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6649 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6650 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6651 spin_unlock(&ipr_cmd->hrrq->_lock);
6652 ata_qc_complete(qc);
6656 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6657 * @ipr_cmd: ipr command struct
6658 * @qc: ATA queued command
6661 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6662 struct ata_queued_cmd *qc)
6664 u32 ioadl_flags = 0;
6665 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6666 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6667 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6668 int len = qc->nbytes;
6669 struct scatterlist *sg;
6671 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6676 if (qc->dma_dir == DMA_TO_DEVICE) {
6677 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6678 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6679 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6680 ioadl_flags = IPR_IOADL_FLAGS_READ;
6682 ioarcb->data_transfer_length = cpu_to_be32(len);
6684 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6685 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6686 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6688 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6689 ioadl64->flags = cpu_to_be32(ioadl_flags);
6690 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6691 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6693 last_ioadl64 = ioadl64;
6697 if (likely(last_ioadl64))
6698 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6702 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6703 * @ipr_cmd: ipr command struct
6704 * @qc: ATA queued command
6707 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6708 struct ata_queued_cmd *qc)
6710 u32 ioadl_flags = 0;
6711 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6712 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6713 struct ipr_ioadl_desc *last_ioadl = NULL;
6714 int len = qc->nbytes;
6715 struct scatterlist *sg;
6721 if (qc->dma_dir == DMA_TO_DEVICE) {
6722 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6723 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6724 ioarcb->data_transfer_length = cpu_to_be32(len);
6726 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6727 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6728 ioadl_flags = IPR_IOADL_FLAGS_READ;
6729 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6730 ioarcb->read_ioadl_len =
6731 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6734 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6735 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6736 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6742 if (likely(last_ioadl))
6743 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6747 * ipr_qc_defer - Get a free ipr_cmd
6748 * @qc: queued command
6753 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6755 struct ata_port *ap = qc->ap;
6756 struct ipr_sata_port *sata_port = ap->private_data;
6757 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6758 struct ipr_cmnd *ipr_cmd;
6759 struct ipr_hrr_queue *hrrq;
6762 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6763 hrrq = &ioa_cfg->hrrq[hrrq_id];
6765 qc->lldd_task = NULL;
6766 spin_lock(&hrrq->_lock);
6767 if (unlikely(hrrq->ioa_is_dead)) {
6768 spin_unlock(&hrrq->_lock);
6772 if (unlikely(!hrrq->allow_cmds)) {
6773 spin_unlock(&hrrq->_lock);
6774 return ATA_DEFER_LINK;
6777 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6778 if (ipr_cmd == NULL) {
6779 spin_unlock(&hrrq->_lock);
6780 return ATA_DEFER_LINK;
6783 qc->lldd_task = ipr_cmd;
6784 spin_unlock(&hrrq->_lock);
6789 * ipr_qc_issue - Issue a SATA qc to a device
6790 * @qc: queued command
6795 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6797 struct ata_port *ap = qc->ap;
6798 struct ipr_sata_port *sata_port = ap->private_data;
6799 struct ipr_resource_entry *res = sata_port->res;
6800 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6801 struct ipr_cmnd *ipr_cmd;
6802 struct ipr_ioarcb *ioarcb;
6803 struct ipr_ioarcb_ata_regs *regs;
6805 if (qc->lldd_task == NULL)
6808 ipr_cmd = qc->lldd_task;
6809 if (ipr_cmd == NULL)
6810 return AC_ERR_SYSTEM;
6812 qc->lldd_task = NULL;
6813 spin_lock(&ipr_cmd->hrrq->_lock);
6814 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6815 ipr_cmd->hrrq->ioa_is_dead)) {
6816 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6817 spin_unlock(&ipr_cmd->hrrq->_lock);
6818 return AC_ERR_SYSTEM;
6821 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
6822 ioarcb = &ipr_cmd->ioarcb;
6824 if (ioa_cfg->sis64) {
6825 regs = &ipr_cmd->i.ata_ioadl.regs;
6826 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6828 regs = &ioarcb->u.add_data.u.regs;
6830 memset(regs, 0, sizeof(*regs));
6831 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6833 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
6835 ipr_cmd->done = ipr_sata_done;
6836 ipr_cmd->ioarcb.res_handle = res->res_handle;
6837 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6838 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6839 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6840 ipr_cmd->dma_use_sg = qc->n_elem;
6843 ipr_build_ata_ioadl64(ipr_cmd, qc);
6845 ipr_build_ata_ioadl(ipr_cmd, qc);
6847 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6848 ipr_copy_sata_tf(regs, &qc->tf);
6849 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6850 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6852 switch (qc->tf.protocol) {
6853 case ATA_PROT_NODATA:
6858 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6861 case ATAPI_PROT_PIO:
6862 case ATAPI_PROT_NODATA:
6863 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6866 case ATAPI_PROT_DMA:
6867 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6868 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6873 spin_unlock(&ipr_cmd->hrrq->_lock);
6874 return AC_ERR_INVALID;
6877 ipr_send_command(ipr_cmd);
6878 spin_unlock(&ipr_cmd->hrrq->_lock);
6884 * ipr_qc_fill_rtf - Read result TF
6885 * @qc: ATA queued command
6890 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6892 struct ipr_sata_port *sata_port = qc->ap->private_data;
6893 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6894 struct ata_taskfile *tf = &qc->result_tf;
6896 tf->feature = g->error;
6897 tf->nsect = g->nsect;
6901 tf->device = g->device;
6902 tf->command = g->status;
6903 tf->hob_nsect = g->hob_nsect;
6904 tf->hob_lbal = g->hob_lbal;
6905 tf->hob_lbam = g->hob_lbam;
6906 tf->hob_lbah = g->hob_lbah;
6911 static struct ata_port_operations ipr_sata_ops = {
6912 .phy_reset = ipr_ata_phy_reset,
6913 .hardreset = ipr_sata_reset,
6914 .post_internal_cmd = ipr_ata_post_internal,
6915 .qc_prep = ata_noop_qc_prep,
6916 .qc_defer = ipr_qc_defer,
6917 .qc_issue = ipr_qc_issue,
6918 .qc_fill_rtf = ipr_qc_fill_rtf,
6919 .port_start = ata_sas_port_start,
6920 .port_stop = ata_sas_port_stop
6923 static struct ata_port_info sata_port_info = {
6924 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6926 .pio_mask = ATA_PIO4_ONLY,
6927 .mwdma_mask = ATA_MWDMA2,
6928 .udma_mask = ATA_UDMA6,
6929 .port_ops = &ipr_sata_ops
6932 #ifdef CONFIG_PPC_PSERIES
6933 static const u16 ipr_blocked_processors[] = {
6945 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6946 * @ioa_cfg: ioa cfg struct
6948 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6949 * certain pSeries hardware. This function determines if the given
6950 * adapter is in one of these confgurations or not.
6953 * 1 if adapter is not supported / 0 if adapter is supported
6955 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6959 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6960 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
6961 if (pvr_version_is(ipr_blocked_processors[i]))
6968 #define ipr_invalid_adapter(ioa_cfg) 0
6972 * ipr_ioa_bringdown_done - IOA bring down completion.
6973 * @ipr_cmd: ipr command struct
6975 * This function processes the completion of an adapter bring down.
6976 * It wakes any reset sleepers.
6981 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6983 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6987 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6989 spin_unlock_irq(ioa_cfg->host->host_lock);
6990 scsi_unblock_requests(ioa_cfg->host);
6991 spin_lock_irq(ioa_cfg->host->host_lock);
6994 ioa_cfg->in_reset_reload = 0;
6995 ioa_cfg->reset_retries = 0;
6996 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6997 spin_lock(&ioa_cfg->hrrq[i]._lock);
6998 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6999 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7003 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7004 wake_up_all(&ioa_cfg->reset_wait_q);
7007 return IPR_RC_JOB_RETURN;
7011 * ipr_ioa_reset_done - IOA reset completion.
7012 * @ipr_cmd: ipr command struct
7014 * This function processes the completion of an adapter reset.
7015 * It schedules any necessary mid-layer add/removes and
7016 * wakes any reset sleepers.
7021 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7023 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7024 struct ipr_resource_entry *res;
7025 struct ipr_hostrcb *hostrcb, *temp;
7029 ioa_cfg->in_reset_reload = 0;
7030 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7031 spin_lock(&ioa_cfg->hrrq[j]._lock);
7032 ioa_cfg->hrrq[j].allow_cmds = 1;
7033 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7036 ioa_cfg->reset_cmd = NULL;
7037 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7039 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7040 if (res->add_to_ml || res->del_from_ml) {
7045 schedule_work(&ioa_cfg->work_q);
7047 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7048 list_del(&hostrcb->queue);
7049 if (i++ < IPR_NUM_LOG_HCAMS)
7050 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7052 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7055 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7056 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7058 ioa_cfg->reset_retries = 0;
7059 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7060 wake_up_all(&ioa_cfg->reset_wait_q);
7062 spin_unlock(ioa_cfg->host->host_lock);
7063 scsi_unblock_requests(ioa_cfg->host);
7064 spin_lock(ioa_cfg->host->host_lock);
7066 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
7067 scsi_block_requests(ioa_cfg->host);
7069 schedule_work(&ioa_cfg->work_q);
7071 return IPR_RC_JOB_RETURN;
7075 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7076 * @supported_dev: supported device struct
7077 * @vpids: vendor product id struct
7082 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7083 struct ipr_std_inq_vpids *vpids)
7085 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7086 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7087 supported_dev->num_records = 1;
7088 supported_dev->data_length =
7089 cpu_to_be16(sizeof(struct ipr_supported_device));
7090 supported_dev->reserved = 0;
7094 * ipr_set_supported_devs - Send Set Supported Devices for a device
7095 * @ipr_cmd: ipr command struct
7097 * This function sends a Set Supported Devices to the adapter
7100 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7102 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7104 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7105 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7106 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7107 struct ipr_resource_entry *res = ipr_cmd->u.res;
7109 ipr_cmd->job_step = ipr_ioa_reset_done;
7111 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7112 if (!ipr_is_scsi_disk(res))
7115 ipr_cmd->u.res = res;
7116 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7118 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7119 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7120 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7122 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7123 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7124 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7125 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7127 ipr_init_ioadl(ipr_cmd,
7128 ioa_cfg->vpd_cbs_dma +
7129 offsetof(struct ipr_misc_cbs, supp_dev),
7130 sizeof(struct ipr_supported_device),
7131 IPR_IOADL_FLAGS_WRITE_LAST);
7133 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7134 IPR_SET_SUP_DEVICE_TIMEOUT);
7136 if (!ioa_cfg->sis64)
7137 ipr_cmd->job_step = ipr_set_supported_devs;
7139 return IPR_RC_JOB_RETURN;
7143 return IPR_RC_JOB_CONTINUE;
7147 * ipr_get_mode_page - Locate specified mode page
7148 * @mode_pages: mode page buffer
7149 * @page_code: page code to find
7150 * @len: minimum required length for mode page
7153 * pointer to mode page / NULL on failure
7155 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7156 u32 page_code, u32 len)
7158 struct ipr_mode_page_hdr *mode_hdr;
7162 if (!mode_pages || (mode_pages->hdr.length == 0))
7165 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7166 mode_hdr = (struct ipr_mode_page_hdr *)
7167 (mode_pages->data + mode_pages->hdr.block_desc_len);
7170 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7171 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7175 page_length = (sizeof(struct ipr_mode_page_hdr) +
7176 mode_hdr->page_length);
7177 length -= page_length;
7178 mode_hdr = (struct ipr_mode_page_hdr *)
7179 ((unsigned long)mode_hdr + page_length);
7186 * ipr_check_term_power - Check for term power errors
7187 * @ioa_cfg: ioa config struct
7188 * @mode_pages: IOAFP mode pages buffer
7190 * Check the IOAFP's mode page 28 for term power errors
7195 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7196 struct ipr_mode_pages *mode_pages)
7200 struct ipr_dev_bus_entry *bus;
7201 struct ipr_mode_page28 *mode_page;
7203 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7204 sizeof(struct ipr_mode_page28));
7206 entry_length = mode_page->entry_length;
7208 bus = mode_page->bus;
7210 for (i = 0; i < mode_page->num_entries; i++) {
7211 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7212 dev_err(&ioa_cfg->pdev->dev,
7213 "Term power is absent on scsi bus %d\n",
7217 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7222 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7223 * @ioa_cfg: ioa config struct
7225 * Looks through the config table checking for SES devices. If
7226 * the SES device is in the SES table indicating a maximum SCSI
7227 * bus speed, the speed is limited for the bus.
7232 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7237 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7238 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7239 ioa_cfg->bus_attr[i].bus_width);
7241 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7242 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7247 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7248 * @ioa_cfg: ioa config struct
7249 * @mode_pages: mode page 28 buffer
7251 * Updates mode page 28 based on driver configuration
7256 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7257 struct ipr_mode_pages *mode_pages)
7259 int i, entry_length;
7260 struct ipr_dev_bus_entry *bus;
7261 struct ipr_bus_attributes *bus_attr;
7262 struct ipr_mode_page28 *mode_page;
7264 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7265 sizeof(struct ipr_mode_page28));
7267 entry_length = mode_page->entry_length;
7269 /* Loop for each device bus entry */
7270 for (i = 0, bus = mode_page->bus;
7271 i < mode_page->num_entries;
7272 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7273 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7274 dev_err(&ioa_cfg->pdev->dev,
7275 "Invalid resource address reported: 0x%08X\n",
7276 IPR_GET_PHYS_LOC(bus->res_addr));
7280 bus_attr = &ioa_cfg->bus_attr[i];
7281 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7282 bus->bus_width = bus_attr->bus_width;
7283 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7284 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7285 if (bus_attr->qas_enabled)
7286 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7288 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7293 * ipr_build_mode_select - Build a mode select command
7294 * @ipr_cmd: ipr command struct
7295 * @res_handle: resource handle to send command to
7296 * @parm: Byte 2 of Mode Sense command
7297 * @dma_addr: DMA buffer address
7298 * @xfer_len: data transfer length
7303 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7304 __be32 res_handle, u8 parm,
7305 dma_addr_t dma_addr, u8 xfer_len)
7307 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7309 ioarcb->res_handle = res_handle;
7310 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7311 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7312 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7313 ioarcb->cmd_pkt.cdb[1] = parm;
7314 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7316 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7320 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7321 * @ipr_cmd: ipr command struct
7323 * This function sets up the SCSI bus attributes and sends
7324 * a Mode Select for Page 28 to activate them.
7329 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7331 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7332 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7336 ipr_scsi_bus_speed_limit(ioa_cfg);
7337 ipr_check_term_power(ioa_cfg, mode_pages);
7338 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7339 length = mode_pages->hdr.length + 1;
7340 mode_pages->hdr.length = 0;
7342 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7343 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7346 ipr_cmd->job_step = ipr_set_supported_devs;
7347 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7348 struct ipr_resource_entry, queue);
7349 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7352 return IPR_RC_JOB_RETURN;
7356 * ipr_build_mode_sense - Builds a mode sense command
7357 * @ipr_cmd: ipr command struct
7358 * @res: resource entry struct
7359 * @parm: Byte 2 of mode sense command
7360 * @dma_addr: DMA address of mode sense buffer
7361 * @xfer_len: Size of DMA buffer
7366 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7368 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7370 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7372 ioarcb->res_handle = res_handle;
7373 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7374 ioarcb->cmd_pkt.cdb[2] = parm;
7375 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7376 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7378 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7382 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7383 * @ipr_cmd: ipr command struct
7385 * This function handles the failure of an IOA bringup command.
7390 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7392 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7393 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7395 dev_err(&ioa_cfg->pdev->dev,
7396 "0x%02X failed with IOASC: 0x%08X\n",
7397 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7399 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7400 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7401 return IPR_RC_JOB_RETURN;
7405 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7406 * @ipr_cmd: ipr command struct
7408 * This function handles the failure of a Mode Sense to the IOAFP.
7409 * Some adapters do not handle all mode pages.
7412 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7414 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7416 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7417 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7419 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7420 ipr_cmd->job_step = ipr_set_supported_devs;
7421 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7422 struct ipr_resource_entry, queue);
7423 return IPR_RC_JOB_CONTINUE;
7426 return ipr_reset_cmd_failed(ipr_cmd);
7430 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7431 * @ipr_cmd: ipr command struct
7433 * This function send a Page 28 mode sense to the IOA to
7434 * retrieve SCSI bus attributes.
7439 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7441 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7444 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7445 0x28, ioa_cfg->vpd_cbs_dma +
7446 offsetof(struct ipr_misc_cbs, mode_pages),
7447 sizeof(struct ipr_mode_pages));
7449 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7450 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7452 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7455 return IPR_RC_JOB_RETURN;
7459 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7460 * @ipr_cmd: ipr command struct
7462 * This function enables dual IOA RAID support if possible.
7467 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7469 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7470 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7471 struct ipr_mode_page24 *mode_page;
7475 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7476 sizeof(struct ipr_mode_page24));
7479 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7481 length = mode_pages->hdr.length + 1;
7482 mode_pages->hdr.length = 0;
7484 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7485 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7488 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7489 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7492 return IPR_RC_JOB_RETURN;
7496 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7497 * @ipr_cmd: ipr command struct
7499 * This function handles the failure of a Mode Sense to the IOAFP.
7500 * Some adapters do not handle all mode pages.
7503 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7505 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7507 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7509 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7510 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7511 return IPR_RC_JOB_CONTINUE;
7514 return ipr_reset_cmd_failed(ipr_cmd);
7518 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7519 * @ipr_cmd: ipr command struct
7521 * This function send a mode sense to the IOA to retrieve
7522 * the IOA Advanced Function Control mode page.
7527 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7529 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7532 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7533 0x24, ioa_cfg->vpd_cbs_dma +
7534 offsetof(struct ipr_misc_cbs, mode_pages),
7535 sizeof(struct ipr_mode_pages));
7537 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7538 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7540 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7543 return IPR_RC_JOB_RETURN;
7547 * ipr_init_res_table - Initialize the resource table
7548 * @ipr_cmd: ipr command struct
7550 * This function looks through the existing resource table, comparing
7551 * it with the config table. This function will take care of old/new
7552 * devices and schedule adding/removing them from the mid-layer
7556 * IPR_RC_JOB_CONTINUE
7558 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7560 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7561 struct ipr_resource_entry *res, *temp;
7562 struct ipr_config_table_entry_wrapper cfgtew;
7563 int entries, found, flag, i;
7568 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7570 flag = ioa_cfg->u.cfg_table->hdr.flags;
7572 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7573 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7575 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7576 list_move_tail(&res->queue, &old_res);
7579 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7581 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7583 for (i = 0; i < entries; i++) {
7585 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7587 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7590 list_for_each_entry_safe(res, temp, &old_res, queue) {
7591 if (ipr_is_same_device(res, &cfgtew)) {
7592 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7599 if (list_empty(&ioa_cfg->free_res_q)) {
7600 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7605 res = list_entry(ioa_cfg->free_res_q.next,
7606 struct ipr_resource_entry, queue);
7607 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7608 ipr_init_res_entry(res, &cfgtew);
7610 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7611 res->sdev->allow_restart = 1;
7614 ipr_update_res_entry(res, &cfgtew);
7617 list_for_each_entry_safe(res, temp, &old_res, queue) {
7619 res->del_from_ml = 1;
7620 res->res_handle = IPR_INVALID_RES_HANDLE;
7621 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7625 list_for_each_entry_safe(res, temp, &old_res, queue) {
7626 ipr_clear_res_target(res);
7627 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7630 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7631 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7633 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7636 return IPR_RC_JOB_CONTINUE;
7640 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7641 * @ipr_cmd: ipr command struct
7643 * This function sends a Query IOA Configuration command
7644 * to the adapter to retrieve the IOA configuration table.
7649 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7651 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7652 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7653 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7654 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7657 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7658 ioa_cfg->dual_raid = 1;
7659 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7660 ucode_vpd->major_release, ucode_vpd->card_type,
7661 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7662 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7663 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7665 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7666 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7667 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7668 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7670 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7671 IPR_IOADL_FLAGS_READ_LAST);
7673 ipr_cmd->job_step = ipr_init_res_table;
7675 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7678 return IPR_RC_JOB_RETURN;
7681 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7683 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7685 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7686 return IPR_RC_JOB_CONTINUE;
7688 return ipr_reset_cmd_failed(ipr_cmd);
7691 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7692 __be32 res_handle, u8 sa_code)
7694 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7696 ioarcb->res_handle = res_handle;
7697 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7698 ioarcb->cmd_pkt.cdb[1] = sa_code;
7699 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7703 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7709 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7711 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7712 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7713 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7717 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7719 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7720 ipr_build_ioa_service_action(ipr_cmd,
7721 cpu_to_be32(IPR_IOA_RES_HANDLE),
7722 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7724 ioarcb->cmd_pkt.cdb[2] = 0x40;
7726 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7727 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7728 IPR_SET_SUP_DEVICE_TIMEOUT);
7731 return IPR_RC_JOB_RETURN;
7735 return IPR_RC_JOB_CONTINUE;
7739 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7740 * @ipr_cmd: ipr command struct
7742 * This utility function sends an inquiry to the adapter.
7747 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7748 dma_addr_t dma_addr, u8 xfer_len)
7750 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7753 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7754 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7756 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7757 ioarcb->cmd_pkt.cdb[1] = flags;
7758 ioarcb->cmd_pkt.cdb[2] = page;
7759 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7761 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7763 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7768 * ipr_inquiry_page_supported - Is the given inquiry page supported
7769 * @page0: inquiry page 0 buffer
7772 * This function determines if the specified inquiry page is supported.
7775 * 1 if page is supported / 0 if not
7777 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7781 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7782 if (page0->page[i] == page)
7789 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7790 * @ipr_cmd: ipr command struct
7792 * This function sends a Page 0xC4 inquiry to the adapter
7793 * to retrieve software VPD information.
7796 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7798 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7800 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7801 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7802 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7805 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
7806 memset(pageC4, 0, sizeof(*pageC4));
7808 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7809 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7810 (ioa_cfg->vpd_cbs_dma
7811 + offsetof(struct ipr_misc_cbs,
7813 sizeof(struct ipr_inquiry_pageC4));
7814 return IPR_RC_JOB_RETURN;
7818 return IPR_RC_JOB_CONTINUE;
7822 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7823 * @ipr_cmd: ipr command struct
7825 * This function sends a Page 0xD0 inquiry to the adapter
7826 * to retrieve adapter capabilities.
7829 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7831 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7834 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7835 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7838 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
7839 memset(cap, 0, sizeof(*cap));
7841 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7842 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7843 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7844 sizeof(struct ipr_inquiry_cap));
7845 return IPR_RC_JOB_RETURN;
7849 return IPR_RC_JOB_CONTINUE;
7853 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7854 * @ipr_cmd: ipr command struct
7856 * This function sends a Page 3 inquiry to the adapter
7857 * to retrieve software VPD information.
7860 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7862 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7864 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7868 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7870 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7871 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7872 sizeof(struct ipr_inquiry_page3));
7875 return IPR_RC_JOB_RETURN;
7879 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7880 * @ipr_cmd: ipr command struct
7882 * This function sends a Page 0 inquiry to the adapter
7883 * to retrieve supported inquiry pages.
7886 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7888 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7890 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7895 /* Grab the type out of the VPD and store it away */
7896 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7898 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7900 if (ipr_invalid_adapter(ioa_cfg)) {
7901 dev_err(&ioa_cfg->pdev->dev,
7902 "Adapter not supported in this hardware configuration.\n");
7904 if (!ipr_testmode) {
7905 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7906 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7907 list_add_tail(&ipr_cmd->queue,
7908 &ioa_cfg->hrrq->hrrq_free_q);
7909 return IPR_RC_JOB_RETURN;
7913 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7915 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7916 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7917 sizeof(struct ipr_inquiry_page0));
7920 return IPR_RC_JOB_RETURN;
7924 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7925 * @ipr_cmd: ipr command struct
7927 * This function sends a standard inquiry to the adapter.
7932 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7934 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7937 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7939 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7940 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7941 sizeof(struct ipr_ioa_vpd));
7944 return IPR_RC_JOB_RETURN;
7948 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7949 * @ipr_cmd: ipr command struct
7951 * This function send an Identify Host Request Response Queue
7952 * command to establish the HRRQ with the adapter.
7957 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7959 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7960 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7961 struct ipr_hrr_queue *hrrq;
7964 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7965 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7967 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7968 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
7970 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7971 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7973 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7975 ioarcb->cmd_pkt.cdb[1] = 0x1;
7977 if (ioa_cfg->nvectors == 1)
7978 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7980 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7982 ioarcb->cmd_pkt.cdb[2] =
7983 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7984 ioarcb->cmd_pkt.cdb[3] =
7985 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7986 ioarcb->cmd_pkt.cdb[4] =
7987 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7988 ioarcb->cmd_pkt.cdb[5] =
7989 ((u64) hrrq->host_rrq_dma) & 0xff;
7990 ioarcb->cmd_pkt.cdb[7] =
7991 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7992 ioarcb->cmd_pkt.cdb[8] =
7993 (sizeof(u32) * hrrq->size) & 0xff;
7995 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7996 ioarcb->cmd_pkt.cdb[9] =
7997 ioa_cfg->identify_hrrq_index;
7999 if (ioa_cfg->sis64) {
8000 ioarcb->cmd_pkt.cdb[10] =
8001 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8002 ioarcb->cmd_pkt.cdb[11] =
8003 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8004 ioarcb->cmd_pkt.cdb[12] =
8005 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8006 ioarcb->cmd_pkt.cdb[13] =
8007 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8010 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8011 ioarcb->cmd_pkt.cdb[14] =
8012 ioa_cfg->identify_hrrq_index;
8014 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8015 IPR_INTERNAL_TIMEOUT);
8017 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8018 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8021 return IPR_RC_JOB_RETURN;
8025 return IPR_RC_JOB_CONTINUE;
8029 * ipr_reset_timer_done - Adapter reset timer function
8030 * @ipr_cmd: ipr command struct
8032 * Description: This function is used in adapter reset processing
8033 * for timing events. If the reset_cmd pointer in the IOA
8034 * config struct is not this adapter's we are doing nested
8035 * resets and fail_all_ops will take care of freeing the
8041 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8044 unsigned long lock_flags = 0;
8046 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8048 if (ioa_cfg->reset_cmd == ipr_cmd) {
8049 list_del(&ipr_cmd->queue);
8050 ipr_cmd->done(ipr_cmd);
8053 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8057 * ipr_reset_start_timer - Start a timer for adapter reset job
8058 * @ipr_cmd: ipr command struct
8059 * @timeout: timeout value
8061 * Description: This function is used in adapter reset processing
8062 * for timing events. If the reset_cmd pointer in the IOA
8063 * config struct is not this adapter's we are doing nested
8064 * resets and fail_all_ops will take care of freeing the
8070 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8071 unsigned long timeout)
8075 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8076 ipr_cmd->done = ipr_reset_ioa_job;
8078 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8079 ipr_cmd->timer.expires = jiffies + timeout;
8080 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8081 add_timer(&ipr_cmd->timer);
8085 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8086 * @ioa_cfg: ioa cfg struct
8091 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8093 struct ipr_hrr_queue *hrrq;
8095 for_each_hrrq(hrrq, ioa_cfg) {
8096 spin_lock(&hrrq->_lock);
8097 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8099 /* Initialize Host RRQ pointers */
8100 hrrq->hrrq_start = hrrq->host_rrq;
8101 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8102 hrrq->hrrq_curr = hrrq->hrrq_start;
8103 hrrq->toggle_bit = 1;
8104 spin_unlock(&hrrq->_lock);
8108 ioa_cfg->identify_hrrq_index = 0;
8109 if (ioa_cfg->hrrq_num == 1)
8110 atomic_set(&ioa_cfg->hrrq_index, 0);
8112 atomic_set(&ioa_cfg->hrrq_index, 1);
8114 /* Zero out config table */
8115 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8119 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8120 * @ipr_cmd: ipr command struct
8123 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8125 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8127 unsigned long stage, stage_time;
8129 volatile u32 int_reg;
8130 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8133 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8134 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8135 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8137 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8139 /* sanity check the stage_time value */
8140 if (stage_time == 0)
8141 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8142 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8143 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8144 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8145 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8147 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8148 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8149 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8150 stage_time = ioa_cfg->transop_timeout;
8151 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8152 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8153 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8154 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8155 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8156 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8157 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8158 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8159 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8160 return IPR_RC_JOB_CONTINUE;
8164 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8165 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8166 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8167 ipr_cmd->done = ipr_reset_ioa_job;
8168 add_timer(&ipr_cmd->timer);
8170 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8172 return IPR_RC_JOB_RETURN;
8176 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8177 * @ipr_cmd: ipr command struct
8179 * This function reinitializes some control blocks and
8180 * enables destructive diagnostics on the adapter.
8185 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8187 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8188 volatile u32 int_reg;
8189 volatile u64 maskval;
8193 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8194 ipr_init_ioa_mem(ioa_cfg);
8196 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8197 spin_lock(&ioa_cfg->hrrq[i]._lock);
8198 ioa_cfg->hrrq[i].allow_interrupts = 1;
8199 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8202 if (ioa_cfg->sis64) {
8203 /* Set the adapter to the correct endian mode. */
8204 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8205 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8208 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8210 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8211 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8212 ioa_cfg->regs.clr_interrupt_mask_reg32);
8213 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8214 return IPR_RC_JOB_CONTINUE;
8217 /* Enable destructive diagnostics on IOA */
8218 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8220 if (ioa_cfg->sis64) {
8221 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8222 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8223 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8225 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8227 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8229 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8231 if (ioa_cfg->sis64) {
8232 ipr_cmd->job_step = ipr_reset_next_stage;
8233 return IPR_RC_JOB_CONTINUE;
8236 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8237 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8238 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8239 ipr_cmd->done = ipr_reset_ioa_job;
8240 add_timer(&ipr_cmd->timer);
8241 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8244 return IPR_RC_JOB_RETURN;
8248 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8249 * @ipr_cmd: ipr command struct
8251 * This function is invoked when an adapter dump has run out
8252 * of processing time.
8255 * IPR_RC_JOB_CONTINUE
8257 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8259 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8261 if (ioa_cfg->sdt_state == GET_DUMP)
8262 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8263 else if (ioa_cfg->sdt_state == READ_DUMP)
8264 ioa_cfg->sdt_state = ABORT_DUMP;
8266 ioa_cfg->dump_timeout = 1;
8267 ipr_cmd->job_step = ipr_reset_alert;
8269 return IPR_RC_JOB_CONTINUE;
8273 * ipr_unit_check_no_data - Log a unit check/no data error log
8274 * @ioa_cfg: ioa config struct
8276 * Logs an error indicating the adapter unit checked, but for some
8277 * reason, we were unable to fetch the unit check buffer.
8282 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8284 ioa_cfg->errors_logged++;
8285 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8289 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8290 * @ioa_cfg: ioa config struct
8292 * Fetches the unit check buffer from the adapter by clocking the data
8293 * through the mailbox register.
8298 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8300 unsigned long mailbox;
8301 struct ipr_hostrcb *hostrcb;
8302 struct ipr_uc_sdt sdt;
8306 mailbox = readl(ioa_cfg->ioa_mailbox);
8308 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8309 ipr_unit_check_no_data(ioa_cfg);
8313 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8314 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8315 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8317 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8318 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8319 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8320 ipr_unit_check_no_data(ioa_cfg);
8324 /* Find length of the first sdt entry (UC buffer) */
8325 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8326 length = be32_to_cpu(sdt.entry[0].end_token);
8328 length = (be32_to_cpu(sdt.entry[0].end_token) -
8329 be32_to_cpu(sdt.entry[0].start_token)) &
8330 IPR_FMT2_MBX_ADDR_MASK;
8332 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8333 struct ipr_hostrcb, queue);
8334 list_del(&hostrcb->queue);
8335 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8337 rc = ipr_get_ldump_data_section(ioa_cfg,
8338 be32_to_cpu(sdt.entry[0].start_token),
8339 (__be32 *)&hostrcb->hcam,
8340 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8343 ipr_handle_log_data(ioa_cfg, hostrcb);
8344 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8345 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8346 ioa_cfg->sdt_state == GET_DUMP)
8347 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8349 ipr_unit_check_no_data(ioa_cfg);
8351 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8355 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8356 * @ipr_cmd: ipr command struct
8358 * Description: This function will call to get the unit check buffer.
8363 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8368 ioa_cfg->ioa_unit_checked = 0;
8369 ipr_get_unit_check_buffer(ioa_cfg);
8370 ipr_cmd->job_step = ipr_reset_alert;
8371 ipr_reset_start_timer(ipr_cmd, 0);
8374 return IPR_RC_JOB_RETURN;
8377 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8379 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8383 if (ioa_cfg->sdt_state != GET_DUMP)
8384 return IPR_RC_JOB_RETURN;
8386 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8387 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8388 IPR_PCII_MAILBOX_STABLE)) {
8390 if (!ipr_cmd->u.time_left)
8391 dev_err(&ioa_cfg->pdev->dev,
8392 "Timed out waiting for Mailbox register.\n");
8394 ioa_cfg->sdt_state = READ_DUMP;
8395 ioa_cfg->dump_timeout = 0;
8397 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8399 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8400 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8401 schedule_work(&ioa_cfg->work_q);
8404 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8405 ipr_reset_start_timer(ipr_cmd,
8406 IPR_CHECK_FOR_RESET_TIMEOUT);
8410 return IPR_RC_JOB_RETURN;
8414 * ipr_reset_restore_cfg_space - Restore PCI config space.
8415 * @ipr_cmd: ipr command struct
8417 * Description: This function restores the saved PCI config space of
8418 * the adapter, fails all outstanding ops back to the callers, and
8419 * fetches the dump/unit check if applicable to this reset.
8422 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8424 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8426 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8430 ioa_cfg->pdev->state_saved = true;
8431 pci_restore_state(ioa_cfg->pdev);
8433 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8434 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8435 return IPR_RC_JOB_CONTINUE;
8438 ipr_fail_all_ops(ioa_cfg);
8440 if (ioa_cfg->sis64) {
8441 /* Set the adapter to the correct endian mode. */
8442 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8443 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8446 if (ioa_cfg->ioa_unit_checked) {
8447 if (ioa_cfg->sis64) {
8448 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8449 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8450 return IPR_RC_JOB_RETURN;
8452 ioa_cfg->ioa_unit_checked = 0;
8453 ipr_get_unit_check_buffer(ioa_cfg);
8454 ipr_cmd->job_step = ipr_reset_alert;
8455 ipr_reset_start_timer(ipr_cmd, 0);
8456 return IPR_RC_JOB_RETURN;
8460 if (ioa_cfg->in_ioa_bringdown) {
8461 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8462 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8463 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8464 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8466 ipr_cmd->job_step = ipr_reset_enable_ioa;
8470 return IPR_RC_JOB_CONTINUE;
8474 * ipr_reset_bist_done - BIST has completed on the adapter.
8475 * @ipr_cmd: ipr command struct
8477 * Description: Unblock config space and resume the reset process.
8480 * IPR_RC_JOB_CONTINUE
8482 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8484 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8487 if (ioa_cfg->cfg_locked)
8488 pci_cfg_access_unlock(ioa_cfg->pdev);
8489 ioa_cfg->cfg_locked = 0;
8490 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8492 return IPR_RC_JOB_CONTINUE;
8496 * ipr_reset_start_bist - Run BIST on the adapter.
8497 * @ipr_cmd: ipr command struct
8499 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8502 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8504 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8506 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8507 int rc = PCIBIOS_SUCCESSFUL;
8510 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8511 writel(IPR_UPROCI_SIS64_START_BIST,
8512 ioa_cfg->regs.set_uproc_interrupt_reg32);
8514 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8516 if (rc == PCIBIOS_SUCCESSFUL) {
8517 ipr_cmd->job_step = ipr_reset_bist_done;
8518 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8519 rc = IPR_RC_JOB_RETURN;
8521 if (ioa_cfg->cfg_locked)
8522 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8523 ioa_cfg->cfg_locked = 0;
8524 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8525 rc = IPR_RC_JOB_CONTINUE;
8533 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8534 * @ipr_cmd: ipr command struct
8536 * Description: This clears PCI reset to the adapter and delays two seconds.
8541 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8544 ipr_cmd->job_step = ipr_reset_bist_done;
8545 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8547 return IPR_RC_JOB_RETURN;
8551 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8552 * @work: work struct
8554 * Description: This pulses warm reset to a slot.
8557 static void ipr_reset_reset_work(struct work_struct *work)
8559 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8560 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8561 struct pci_dev *pdev = ioa_cfg->pdev;
8562 unsigned long lock_flags = 0;
8565 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8566 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8567 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8569 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8570 if (ioa_cfg->reset_cmd == ipr_cmd)
8571 ipr_reset_ioa_job(ipr_cmd);
8572 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8577 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8578 * @ipr_cmd: ipr command struct
8580 * Description: This asserts PCI reset to the adapter.
8585 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8590 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8591 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8592 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8594 return IPR_RC_JOB_RETURN;
8598 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8599 * @ipr_cmd: ipr command struct
8601 * Description: This attempts to block config access to the IOA.
8604 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8606 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8608 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8609 int rc = IPR_RC_JOB_CONTINUE;
8611 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8612 ioa_cfg->cfg_locked = 1;
8613 ipr_cmd->job_step = ioa_cfg->reset;
8615 if (ipr_cmd->u.time_left) {
8616 rc = IPR_RC_JOB_RETURN;
8617 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8618 ipr_reset_start_timer(ipr_cmd,
8619 IPR_CHECK_FOR_RESET_TIMEOUT);
8621 ipr_cmd->job_step = ioa_cfg->reset;
8622 dev_err(&ioa_cfg->pdev->dev,
8623 "Timed out waiting to lock config access. Resetting anyway.\n");
8631 * ipr_reset_block_config_access - Block config access to the IOA
8632 * @ipr_cmd: ipr command struct
8634 * Description: This attempts to block config access to the IOA
8637 * IPR_RC_JOB_CONTINUE
8639 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8641 ipr_cmd->ioa_cfg->cfg_locked = 0;
8642 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8643 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8644 return IPR_RC_JOB_CONTINUE;
8648 * ipr_reset_allowed - Query whether or not IOA can be reset
8649 * @ioa_cfg: ioa config struct
8652 * 0 if reset not allowed / non-zero if reset is allowed
8654 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8656 volatile u32 temp_reg;
8658 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8659 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8663 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8664 * @ipr_cmd: ipr command struct
8666 * Description: This function waits for adapter permission to run BIST,
8667 * then runs BIST. If the adapter does not give permission after a
8668 * reasonable time, we will reset the adapter anyway. The impact of
8669 * resetting the adapter without warning the adapter is the risk of
8670 * losing the persistent error log on the adapter. If the adapter is
8671 * reset while it is writing to the flash on the adapter, the flash
8672 * segment will have bad ECC and be zeroed.
8675 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8677 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8680 int rc = IPR_RC_JOB_RETURN;
8682 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8683 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8684 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8686 ipr_cmd->job_step = ipr_reset_block_config_access;
8687 rc = IPR_RC_JOB_CONTINUE;
8694 * ipr_reset_alert - Alert the adapter of a pending reset
8695 * @ipr_cmd: ipr command struct
8697 * Description: This function alerts the adapter that it will be reset.
8698 * If memory space is not currently enabled, proceed directly
8699 * to running BIST on the adapter. The timer must always be started
8700 * so we guarantee we do not run BIST from ipr_isr.
8705 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8707 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8712 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8714 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8715 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8716 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8717 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8719 ipr_cmd->job_step = ipr_reset_block_config_access;
8722 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8723 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8726 return IPR_RC_JOB_RETURN;
8730 * ipr_reset_quiesce_done - Complete IOA disconnect
8731 * @ipr_cmd: ipr command struct
8733 * Description: Freeze the adapter to complete quiesce processing
8736 * IPR_RC_JOB_CONTINUE
8738 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8740 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8743 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8744 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8746 return IPR_RC_JOB_CONTINUE;
8750 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8751 * @ipr_cmd: ipr command struct
8753 * Description: Ensure nothing is outstanding to the IOA and
8754 * proceed with IOA disconnect. Otherwise reset the IOA.
8757 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8759 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8761 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8762 struct ipr_cmnd *loop_cmd;
8763 struct ipr_hrr_queue *hrrq;
8764 int rc = IPR_RC_JOB_CONTINUE;
8768 ipr_cmd->job_step = ipr_reset_quiesce_done;
8770 for_each_hrrq(hrrq, ioa_cfg) {
8771 spin_lock(&hrrq->_lock);
8772 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8774 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8775 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8776 rc = IPR_RC_JOB_RETURN;
8779 spin_unlock(&hrrq->_lock);
8790 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8791 * @ipr_cmd: ipr command struct
8793 * Description: Cancel any oustanding HCAMs to the IOA.
8796 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8798 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8800 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8801 int rc = IPR_RC_JOB_CONTINUE;
8802 struct ipr_cmd_pkt *cmd_pkt;
8803 struct ipr_cmnd *hcam_cmd;
8804 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8807 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8809 if (!hrrq->ioa_is_dead) {
8810 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8811 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8812 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8815 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8816 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8817 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8818 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8819 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8820 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8821 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8822 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8823 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8824 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8825 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8826 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8827 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8828 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8830 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8831 IPR_CANCEL_TIMEOUT);
8833 rc = IPR_RC_JOB_RETURN;
8834 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8839 ipr_cmd->job_step = ipr_reset_alert;
8846 * ipr_reset_ucode_download_done - Microcode download completion
8847 * @ipr_cmd: ipr command struct
8849 * Description: This function unmaps the microcode download buffer.
8852 * IPR_RC_JOB_CONTINUE
8854 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8856 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8857 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8859 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
8860 sglist->num_sg, DMA_TO_DEVICE);
8862 ipr_cmd->job_step = ipr_reset_alert;
8863 return IPR_RC_JOB_CONTINUE;
8867 * ipr_reset_ucode_download - Download microcode to the adapter
8868 * @ipr_cmd: ipr command struct
8870 * Description: This function checks to see if it there is microcode
8871 * to download to the adapter. If there is, a download is performed.
8874 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8876 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8878 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8879 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8882 ipr_cmd->job_step = ipr_reset_alert;
8885 return IPR_RC_JOB_CONTINUE;
8887 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8888 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8889 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8890 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8891 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8892 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8893 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8896 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8898 ipr_build_ucode_ioadl(ipr_cmd, sglist);
8899 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8901 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8902 IPR_WRITE_BUFFER_TIMEOUT);
8905 return IPR_RC_JOB_RETURN;
8909 * ipr_reset_shutdown_ioa - Shutdown the adapter
8910 * @ipr_cmd: ipr command struct
8912 * Description: This function issues an adapter shutdown of the
8913 * specified type to the specified adapter as part of the
8914 * adapter reset job.
8917 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8919 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8921 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8922 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8923 unsigned long timeout;
8924 int rc = IPR_RC_JOB_CONTINUE;
8927 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8928 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8929 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
8930 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
8931 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8932 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8933 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8934 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8936 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8937 timeout = IPR_SHUTDOWN_TIMEOUT;
8938 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8939 timeout = IPR_INTERNAL_TIMEOUT;
8940 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8941 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
8943 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
8945 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8947 rc = IPR_RC_JOB_RETURN;
8948 ipr_cmd->job_step = ipr_reset_ucode_download;
8950 ipr_cmd->job_step = ipr_reset_alert;
8957 * ipr_reset_ioa_job - Adapter reset job
8958 * @ipr_cmd: ipr command struct
8960 * Description: This function is the job router for the adapter reset job.
8965 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8968 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8971 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8973 if (ioa_cfg->reset_cmd != ipr_cmd) {
8975 * We are doing nested adapter resets and this is
8976 * not the current reset job.
8978 list_add_tail(&ipr_cmd->queue,
8979 &ipr_cmd->hrrq->hrrq_free_q);
8983 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8984 rc = ipr_cmd->job_step_failed(ipr_cmd);
8985 if (rc == IPR_RC_JOB_RETURN)
8989 ipr_reinit_ipr_cmnd(ipr_cmd);
8990 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8991 rc = ipr_cmd->job_step(ipr_cmd);
8992 } while (rc == IPR_RC_JOB_CONTINUE);
8996 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8997 * @ioa_cfg: ioa config struct
8998 * @job_step: first job step of reset job
8999 * @shutdown_type: shutdown type
9001 * Description: This function will initiate the reset of the given adapter
9002 * starting at the selected job step.
9003 * If the caller needs to wait on the completion of the reset,
9004 * the caller must sleep on the reset_wait_q.
9009 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9010 int (*job_step) (struct ipr_cmnd *),
9011 enum ipr_shutdown_type shutdown_type)
9013 struct ipr_cmnd *ipr_cmd;
9016 ioa_cfg->in_reset_reload = 1;
9017 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9018 spin_lock(&ioa_cfg->hrrq[i]._lock);
9019 ioa_cfg->hrrq[i].allow_cmds = 0;
9020 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9023 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9024 scsi_block_requests(ioa_cfg->host);
9026 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9027 ioa_cfg->reset_cmd = ipr_cmd;
9028 ipr_cmd->job_step = job_step;
9029 ipr_cmd->u.shutdown_type = shutdown_type;
9031 ipr_reset_ioa_job(ipr_cmd);
9035 * ipr_initiate_ioa_reset - Initiate an adapter reset
9036 * @ioa_cfg: ioa config struct
9037 * @shutdown_type: shutdown type
9039 * Description: This function will initiate the reset of the given adapter.
9040 * If the caller needs to wait on the completion of the reset,
9041 * the caller must sleep on the reset_wait_q.
9046 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9047 enum ipr_shutdown_type shutdown_type)
9051 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9054 if (ioa_cfg->in_reset_reload) {
9055 if (ioa_cfg->sdt_state == GET_DUMP)
9056 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9057 else if (ioa_cfg->sdt_state == READ_DUMP)
9058 ioa_cfg->sdt_state = ABORT_DUMP;
9061 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9062 dev_err(&ioa_cfg->pdev->dev,
9063 "IOA taken offline - error recovery failed\n");
9065 ioa_cfg->reset_retries = 0;
9066 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9067 spin_lock(&ioa_cfg->hrrq[i]._lock);
9068 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9069 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9073 if (ioa_cfg->in_ioa_bringdown) {
9074 ioa_cfg->reset_cmd = NULL;
9075 ioa_cfg->in_reset_reload = 0;
9076 ipr_fail_all_ops(ioa_cfg);
9077 wake_up_all(&ioa_cfg->reset_wait_q);
9079 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9080 spin_unlock_irq(ioa_cfg->host->host_lock);
9081 scsi_unblock_requests(ioa_cfg->host);
9082 spin_lock_irq(ioa_cfg->host->host_lock);
9086 ioa_cfg->in_ioa_bringdown = 1;
9087 shutdown_type = IPR_SHUTDOWN_NONE;
9091 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9096 * ipr_reset_freeze - Hold off all I/O activity
9097 * @ipr_cmd: ipr command struct
9099 * Description: If the PCI slot is frozen, hold off all I/O
9100 * activity; then, as soon as the slot is available again,
9101 * initiate an adapter reset.
9103 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9105 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9108 /* Disallow new interrupts, avoid loop */
9109 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9110 spin_lock(&ioa_cfg->hrrq[i]._lock);
9111 ioa_cfg->hrrq[i].allow_interrupts = 0;
9112 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9115 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9116 ipr_cmd->done = ipr_reset_ioa_job;
9117 return IPR_RC_JOB_RETURN;
9121 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9122 * @pdev: PCI device struct
9124 * Description: This routine is called to tell us that the MMIO
9125 * access to the IOA has been restored
9127 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9129 unsigned long flags = 0;
9130 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9132 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9133 if (!ioa_cfg->probe_done)
9134 pci_save_state(pdev);
9135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9136 return PCI_ERS_RESULT_NEED_RESET;
9140 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9141 * @pdev: PCI device struct
9143 * Description: This routine is called to tell us that the PCI bus
9144 * is down. Can't do anything here, except put the device driver
9145 * into a holding pattern, waiting for the PCI bus to come back.
9147 static void ipr_pci_frozen(struct pci_dev *pdev)
9149 unsigned long flags = 0;
9150 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9152 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9153 if (ioa_cfg->probe_done)
9154 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9155 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9159 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9160 * @pdev: PCI device struct
9162 * Description: This routine is called by the pci error recovery
9163 * code after the PCI slot has been reset, just before we
9164 * should resume normal operations.
9166 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9168 unsigned long flags = 0;
9169 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9171 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9172 if (ioa_cfg->probe_done) {
9173 if (ioa_cfg->needs_warm_reset)
9174 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9176 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9179 wake_up_all(&ioa_cfg->eeh_wait_q);
9180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9181 return PCI_ERS_RESULT_RECOVERED;
9185 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9186 * @pdev: PCI device struct
9188 * Description: This routine is called when the PCI bus has
9189 * permanently failed.
9191 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9193 unsigned long flags = 0;
9194 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9197 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9198 if (ioa_cfg->probe_done) {
9199 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9200 ioa_cfg->sdt_state = ABORT_DUMP;
9201 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9202 ioa_cfg->in_ioa_bringdown = 1;
9203 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9204 spin_lock(&ioa_cfg->hrrq[i]._lock);
9205 ioa_cfg->hrrq[i].allow_cmds = 0;
9206 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9209 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9211 wake_up_all(&ioa_cfg->eeh_wait_q);
9212 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9216 * ipr_pci_error_detected - Called when a PCI error is detected.
9217 * @pdev: PCI device struct
9218 * @state: PCI channel state
9220 * Description: Called when a PCI error is detected.
9223 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9225 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9226 pci_channel_state_t state)
9229 case pci_channel_io_frozen:
9230 ipr_pci_frozen(pdev);
9231 return PCI_ERS_RESULT_CAN_RECOVER;
9232 case pci_channel_io_perm_failure:
9233 ipr_pci_perm_failure(pdev);
9234 return PCI_ERS_RESULT_DISCONNECT;
9239 return PCI_ERS_RESULT_NEED_RESET;
9243 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9244 * @ioa_cfg: ioa cfg struct
9246 * Description: This is the second phase of adapter intialization
9247 * This function takes care of initilizing the adapter to the point
9248 * where it can accept new commands.
9251 * 0 on success / -EIO on failure
9253 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9256 unsigned long host_lock_flags = 0;
9259 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9260 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9261 ioa_cfg->probe_done = 1;
9262 if (ioa_cfg->needs_hard_reset) {
9263 ioa_cfg->needs_hard_reset = 0;
9264 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9266 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9268 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9275 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9276 * @ioa_cfg: ioa config struct
9281 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9285 if (ioa_cfg->ipr_cmnd_list) {
9286 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9287 if (ioa_cfg->ipr_cmnd_list[i])
9288 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9289 ioa_cfg->ipr_cmnd_list[i],
9290 ioa_cfg->ipr_cmnd_list_dma[i]);
9292 ioa_cfg->ipr_cmnd_list[i] = NULL;
9296 if (ioa_cfg->ipr_cmd_pool)
9297 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9299 kfree(ioa_cfg->ipr_cmnd_list);
9300 kfree(ioa_cfg->ipr_cmnd_list_dma);
9301 ioa_cfg->ipr_cmnd_list = NULL;
9302 ioa_cfg->ipr_cmnd_list_dma = NULL;
9303 ioa_cfg->ipr_cmd_pool = NULL;
9307 * ipr_free_mem - Frees memory allocated for an adapter
9308 * @ioa_cfg: ioa cfg struct
9313 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9317 kfree(ioa_cfg->res_entries);
9318 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9319 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9320 ipr_free_cmd_blks(ioa_cfg);
9322 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9323 dma_free_coherent(&ioa_cfg->pdev->dev,
9324 sizeof(u32) * ioa_cfg->hrrq[i].size,
9325 ioa_cfg->hrrq[i].host_rrq,
9326 ioa_cfg->hrrq[i].host_rrq_dma);
9328 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9329 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9331 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9332 dma_free_coherent(&ioa_cfg->pdev->dev,
9333 sizeof(struct ipr_hostrcb),
9334 ioa_cfg->hostrcb[i],
9335 ioa_cfg->hostrcb_dma[i]);
9338 ipr_free_dump(ioa_cfg);
9339 kfree(ioa_cfg->trace);
9343 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9344 * @ioa_cfg: ipr cfg struct
9346 * This function frees all allocated IRQs for the
9347 * specified adapter.
9352 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9354 struct pci_dev *pdev = ioa_cfg->pdev;
9356 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9357 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9359 for (i = 0; i < ioa_cfg->nvectors; i++)
9360 free_irq(ioa_cfg->vectors_info[i].vec,
9363 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9365 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9366 pci_disable_msi(pdev);
9367 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9368 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9369 pci_disable_msix(pdev);
9370 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9375 * ipr_free_all_resources - Free all allocated resources for an adapter.
9376 * @ipr_cmd: ipr command struct
9378 * This function frees all allocated resources for the
9379 * specified adapter.
9384 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9386 struct pci_dev *pdev = ioa_cfg->pdev;
9389 ipr_free_irqs(ioa_cfg);
9390 if (ioa_cfg->reset_work_q)
9391 destroy_workqueue(ioa_cfg->reset_work_q);
9392 iounmap(ioa_cfg->hdw_dma_regs);
9393 pci_release_regions(pdev);
9394 ipr_free_mem(ioa_cfg);
9395 scsi_host_put(ioa_cfg->host);
9396 pci_disable_device(pdev);
9401 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9402 * @ioa_cfg: ioa config struct
9405 * 0 on success / -ENOMEM on allocation failure
9407 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9409 struct ipr_cmnd *ipr_cmd;
9410 struct ipr_ioarcb *ioarcb;
9411 dma_addr_t dma_addr;
9412 int i, entries_each_hrrq, hrrq_id = 0;
9414 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9415 sizeof(struct ipr_cmnd), 512, 0);
9417 if (!ioa_cfg->ipr_cmd_pool)
9420 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9421 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9423 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9424 ipr_free_cmd_blks(ioa_cfg);
9428 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9429 if (ioa_cfg->hrrq_num > 1) {
9431 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9432 ioa_cfg->hrrq[i].min_cmd_id = 0;
9433 ioa_cfg->hrrq[i].max_cmd_id =
9434 (entries_each_hrrq - 1);
9437 IPR_NUM_BASE_CMD_BLKS/
9438 (ioa_cfg->hrrq_num - 1);
9439 ioa_cfg->hrrq[i].min_cmd_id =
9440 IPR_NUM_INTERNAL_CMD_BLKS +
9441 (i - 1) * entries_each_hrrq;
9442 ioa_cfg->hrrq[i].max_cmd_id =
9443 (IPR_NUM_INTERNAL_CMD_BLKS +
9444 i * entries_each_hrrq - 1);
9447 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9448 ioa_cfg->hrrq[i].min_cmd_id = 0;
9449 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9451 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9454 BUG_ON(ioa_cfg->hrrq_num == 0);
9456 i = IPR_NUM_CMD_BLKS -
9457 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9459 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9460 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9463 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9464 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9467 ipr_free_cmd_blks(ioa_cfg);
9471 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9472 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9473 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9475 ioarcb = &ipr_cmd->ioarcb;
9476 ipr_cmd->dma_addr = dma_addr;
9478 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9480 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9482 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9483 if (ioa_cfg->sis64) {
9484 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9485 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9486 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9487 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9489 ioarcb->write_ioadl_addr =
9490 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9491 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9492 ioarcb->ioasa_host_pci_addr =
9493 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9495 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9496 ipr_cmd->cmd_index = i;
9497 ipr_cmd->ioa_cfg = ioa_cfg;
9498 ipr_cmd->sense_buffer_dma = dma_addr +
9499 offsetof(struct ipr_cmnd, sense_buffer);
9501 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9502 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9503 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9504 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9512 * ipr_alloc_mem - Allocate memory for an adapter
9513 * @ioa_cfg: ioa config struct
9516 * 0 on success / non-zero for error
9518 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9520 struct pci_dev *pdev = ioa_cfg->pdev;
9521 int i, rc = -ENOMEM;
9524 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9525 ioa_cfg->max_devs_supported, GFP_KERNEL);
9527 if (!ioa_cfg->res_entries)
9530 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9531 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9532 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9535 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9536 sizeof(struct ipr_misc_cbs),
9537 &ioa_cfg->vpd_cbs_dma,
9540 if (!ioa_cfg->vpd_cbs)
9541 goto out_free_res_entries;
9543 if (ipr_alloc_cmd_blks(ioa_cfg))
9544 goto out_free_vpd_cbs;
9546 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9547 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9548 sizeof(u32) * ioa_cfg->hrrq[i].size,
9549 &ioa_cfg->hrrq[i].host_rrq_dma,
9552 if (!ioa_cfg->hrrq[i].host_rrq) {
9554 dma_free_coherent(&pdev->dev,
9555 sizeof(u32) * ioa_cfg->hrrq[i].size,
9556 ioa_cfg->hrrq[i].host_rrq,
9557 ioa_cfg->hrrq[i].host_rrq_dma);
9558 goto out_ipr_free_cmd_blocks;
9560 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9563 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9564 ioa_cfg->cfg_table_size,
9565 &ioa_cfg->cfg_table_dma,
9568 if (!ioa_cfg->u.cfg_table)
9569 goto out_free_host_rrq;
9571 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9572 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9573 sizeof(struct ipr_hostrcb),
9574 &ioa_cfg->hostrcb_dma[i],
9577 if (!ioa_cfg->hostrcb[i])
9578 goto out_free_hostrcb_dma;
9580 ioa_cfg->hostrcb[i]->hostrcb_dma =
9581 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9582 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9583 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9586 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9587 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9589 if (!ioa_cfg->trace)
9590 goto out_free_hostrcb_dma;
9597 out_free_hostrcb_dma:
9599 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9600 ioa_cfg->hostrcb[i],
9601 ioa_cfg->hostrcb_dma[i]);
9603 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9604 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9606 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9607 dma_free_coherent(&pdev->dev,
9608 sizeof(u32) * ioa_cfg->hrrq[i].size,
9609 ioa_cfg->hrrq[i].host_rrq,
9610 ioa_cfg->hrrq[i].host_rrq_dma);
9612 out_ipr_free_cmd_blocks:
9613 ipr_free_cmd_blks(ioa_cfg);
9615 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9616 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9617 out_free_res_entries:
9618 kfree(ioa_cfg->res_entries);
9623 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9624 * @ioa_cfg: ioa config struct
9629 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9633 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9634 ioa_cfg->bus_attr[i].bus = i;
9635 ioa_cfg->bus_attr[i].qas_enabled = 0;
9636 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9637 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9638 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9640 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9645 * ipr_init_regs - Initialize IOA registers
9646 * @ioa_cfg: ioa config struct
9651 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9653 const struct ipr_interrupt_offsets *p;
9654 struct ipr_interrupts *t;
9657 p = &ioa_cfg->chip_cfg->regs;
9659 base = ioa_cfg->hdw_dma_regs;
9661 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9662 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9663 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9664 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9665 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9666 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9667 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9668 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9669 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9670 t->ioarrin_reg = base + p->ioarrin_reg;
9671 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9672 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9673 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9674 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9675 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9676 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9678 if (ioa_cfg->sis64) {
9679 t->init_feedback_reg = base + p->init_feedback_reg;
9680 t->dump_addr_reg = base + p->dump_addr_reg;
9681 t->dump_data_reg = base + p->dump_data_reg;
9682 t->endian_swap_reg = base + p->endian_swap_reg;
9687 * ipr_init_ioa_cfg - Initialize IOA config struct
9688 * @ioa_cfg: ioa config struct
9689 * @host: scsi host struct
9690 * @pdev: PCI dev struct
9695 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9696 struct Scsi_Host *host, struct pci_dev *pdev)
9700 ioa_cfg->host = host;
9701 ioa_cfg->pdev = pdev;
9702 ioa_cfg->log_level = ipr_log_level;
9703 ioa_cfg->doorbell = IPR_DOORBELL;
9704 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9705 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9706 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9707 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9708 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9709 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9711 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9712 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9713 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9714 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9715 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9716 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9717 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9718 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9719 ioa_cfg->sdt_state = INACTIVE;
9721 ipr_initialize_bus_attr(ioa_cfg);
9722 ioa_cfg->max_devs_supported = ipr_max_devs;
9724 if (ioa_cfg->sis64) {
9725 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9726 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9727 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9728 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9729 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9730 + ((sizeof(struct ipr_config_table_entry64)
9731 * ioa_cfg->max_devs_supported)));
9733 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9734 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9735 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9736 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9737 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9738 + ((sizeof(struct ipr_config_table_entry)
9739 * ioa_cfg->max_devs_supported)));
9742 host->max_channel = IPR_VSET_BUS;
9743 host->unique_id = host->host_no;
9744 host->max_cmd_len = IPR_MAX_CDB_LEN;
9745 host->can_queue = ioa_cfg->max_cmds;
9746 pci_set_drvdata(pdev, ioa_cfg);
9748 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9749 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9750 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9751 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9753 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9755 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9760 * ipr_get_chip_info - Find adapter chip information
9761 * @dev_id: PCI device id struct
9764 * ptr to chip information on success / NULL on failure
9766 static const struct ipr_chip_t *
9767 ipr_get_chip_info(const struct pci_device_id *dev_id)
9771 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9772 if (ipr_chip[i].vendor == dev_id->vendor &&
9773 ipr_chip[i].device == dev_id->device)
9774 return &ipr_chip[i];
9779 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9781 * @ioa_cfg: ioa config struct
9786 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9788 struct pci_dev *pdev = ioa_cfg->pdev;
9790 if (pci_channel_offline(pdev)) {
9791 wait_event_timeout(ioa_cfg->eeh_wait_q,
9792 !pci_channel_offline(pdev),
9793 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9794 pci_restore_state(pdev);
9798 static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9800 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9803 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9804 entries[i].entry = i;
9806 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9807 entries, 1, ipr_number_of_msix);
9809 ipr_wait_for_pci_err_recovery(ioa_cfg);
9813 for (i = 0; i < vectors; i++)
9814 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9815 ioa_cfg->nvectors = vectors;
9820 static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9824 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9826 ipr_wait_for_pci_err_recovery(ioa_cfg);
9830 for (i = 0; i < vectors; i++)
9831 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9832 ioa_cfg->nvectors = vectors;
9837 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9839 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9841 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9842 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9843 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9844 ioa_cfg->vectors_info[vec_idx].
9845 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9849 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9853 for (i = 1; i < ioa_cfg->nvectors; i++) {
9854 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9857 ioa_cfg->vectors_info[i].desc,
9861 free_irq(ioa_cfg->vectors_info[i].vec,
9870 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9871 * @pdev: PCI device struct
9873 * Description: Simply set the msi_received flag to 1 indicating that
9874 * Message Signaled Interrupts are supported.
9877 * 0 on success / non-zero on failure
9879 static irqreturn_t ipr_test_intr(int irq, void *devp)
9881 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9882 unsigned long lock_flags = 0;
9883 irqreturn_t rc = IRQ_HANDLED;
9885 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
9886 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9888 ioa_cfg->msi_received = 1;
9889 wake_up(&ioa_cfg->msi_wait_q);
9891 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9896 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9897 * @pdev: PCI device struct
9899 * Description: The return value from pci_enable_msi_range() can not always be
9900 * trusted. This routine sets up and initiates a test interrupt to determine
9901 * if the interrupt is received via the ipr_test_intr() service routine.
9902 * If the tests fails, the driver will fall back to LSI.
9905 * 0 on success / non-zero on failure
9907 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
9910 volatile u32 int_reg;
9911 unsigned long lock_flags = 0;
9915 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9916 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9917 ioa_cfg->msi_received = 0;
9918 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9919 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
9920 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9921 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9923 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9924 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9926 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9928 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9930 } else if (ipr_debug)
9931 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9933 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
9934 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9935 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
9936 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9937 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9939 if (!ioa_cfg->msi_received) {
9940 /* MSI test failed */
9941 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9943 } else if (ipr_debug)
9944 dev_info(&pdev->dev, "MSI test succeeded.\n");
9946 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9948 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9949 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9951 free_irq(pdev->irq, ioa_cfg);
9958 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
9959 * @pdev: PCI device struct
9960 * @dev_id: PCI device id struct
9963 * 0 on success / non-zero on failure
9965 static int ipr_probe_ioa(struct pci_dev *pdev,
9966 const struct pci_device_id *dev_id)
9968 struct ipr_ioa_cfg *ioa_cfg;
9969 struct Scsi_Host *host;
9970 unsigned long ipr_regs_pci;
9971 void __iomem *ipr_regs;
9972 int rc = PCIBIOS_SUCCESSFUL;
9973 volatile u32 mask, uproc, interrupts;
9974 unsigned long lock_flags, driver_lock_flags;
9978 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
9979 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9982 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9987 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9988 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
9989 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
9991 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
9993 if (!ioa_cfg->ipr_chip) {
9994 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9995 dev_id->vendor, dev_id->device);
9996 goto out_scsi_host_put;
9999 /* set SIS 32 or SIS 64 */
10000 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
10001 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
10002 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
10003 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10005 if (ipr_transop_timeout)
10006 ioa_cfg->transop_timeout = ipr_transop_timeout;
10007 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10008 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10010 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10012 ioa_cfg->revid = pdev->revision;
10014 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10016 ipr_regs_pci = pci_resource_start(pdev, 0);
10018 rc = pci_request_regions(pdev, IPR_NAME);
10020 dev_err(&pdev->dev,
10021 "Couldn't register memory range of registers\n");
10022 goto out_scsi_host_put;
10025 rc = pci_enable_device(pdev);
10027 if (rc || pci_channel_offline(pdev)) {
10028 if (pci_channel_offline(pdev)) {
10029 ipr_wait_for_pci_err_recovery(ioa_cfg);
10030 rc = pci_enable_device(pdev);
10034 dev_err(&pdev->dev, "Cannot enable adapter\n");
10035 ipr_wait_for_pci_err_recovery(ioa_cfg);
10036 goto out_release_regions;
10040 ipr_regs = pci_ioremap_bar(pdev, 0);
10043 dev_err(&pdev->dev,
10044 "Couldn't map memory range of registers\n");
10049 ioa_cfg->hdw_dma_regs = ipr_regs;
10050 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10051 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10053 ipr_init_regs(ioa_cfg);
10055 if (ioa_cfg->sis64) {
10056 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10058 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10059 rc = dma_set_mask_and_coherent(&pdev->dev,
10063 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10066 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10067 goto cleanup_nomem;
10070 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10071 ioa_cfg->chip_cfg->cache_line_size);
10073 if (rc != PCIBIOS_SUCCESSFUL) {
10074 dev_err(&pdev->dev, "Write of cache line size failed\n");
10075 ipr_wait_for_pci_err_recovery(ioa_cfg);
10077 goto cleanup_nomem;
10080 /* Issue MMIO read to ensure card is not in EEH */
10081 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10082 ipr_wait_for_pci_err_recovery(ioa_cfg);
10084 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10085 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10086 IPR_MAX_MSIX_VECTORS);
10087 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10090 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10091 ipr_enable_msix(ioa_cfg) == 0)
10092 ioa_cfg->intr_flag = IPR_USE_MSIX;
10093 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10094 ipr_enable_msi(ioa_cfg) == 0)
10095 ioa_cfg->intr_flag = IPR_USE_MSI;
10097 ioa_cfg->intr_flag = IPR_USE_LSI;
10098 ioa_cfg->nvectors = 1;
10099 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10102 pci_set_master(pdev);
10104 if (pci_channel_offline(pdev)) {
10105 ipr_wait_for_pci_err_recovery(ioa_cfg);
10106 pci_set_master(pdev);
10107 if (pci_channel_offline(pdev)) {
10109 goto out_msi_disable;
10113 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10114 ioa_cfg->intr_flag == IPR_USE_MSIX) {
10115 rc = ipr_test_msi(ioa_cfg, pdev);
10116 if (rc == -EOPNOTSUPP) {
10117 ipr_wait_for_pci_err_recovery(ioa_cfg);
10118 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10119 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10120 pci_disable_msi(pdev);
10121 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10122 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10123 pci_disable_msix(pdev);
10126 ioa_cfg->intr_flag = IPR_USE_LSI;
10127 ioa_cfg->nvectors = 1;
10130 goto out_msi_disable;
10132 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10133 dev_info(&pdev->dev,
10134 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10135 ioa_cfg->nvectors, pdev->irq);
10136 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10137 dev_info(&pdev->dev,
10138 "Request for %d MSIXs succeeded.",
10139 ioa_cfg->nvectors);
10143 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10144 (unsigned int)num_online_cpus(),
10145 (unsigned int)IPR_MAX_HRRQ_NUM);
10147 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10148 goto out_msi_disable;
10150 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10151 goto out_msi_disable;
10153 rc = ipr_alloc_mem(ioa_cfg);
10155 dev_err(&pdev->dev,
10156 "Couldn't allocate enough memory for device driver!\n");
10157 goto out_msi_disable;
10160 /* Save away PCI config space for use following IOA reset */
10161 rc = pci_save_state(pdev);
10163 if (rc != PCIBIOS_SUCCESSFUL) {
10164 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10166 goto cleanup_nolog;
10170 * If HRRQ updated interrupt is not masked, or reset alert is set,
10171 * the card is in an unknown state and needs a hard reset
10173 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10174 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10175 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10176 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10177 ioa_cfg->needs_hard_reset = 1;
10178 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10179 ioa_cfg->needs_hard_reset = 1;
10180 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10181 ioa_cfg->ioa_unit_checked = 1;
10183 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10184 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10187 if (ioa_cfg->intr_flag == IPR_USE_MSI
10188 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10189 name_msi_vectors(ioa_cfg);
10190 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10192 ioa_cfg->vectors_info[0].desc,
10193 &ioa_cfg->hrrq[0]);
10195 rc = ipr_request_other_msi_irqs(ioa_cfg);
10197 rc = request_irq(pdev->irq, ipr_isr,
10199 IPR_NAME, &ioa_cfg->hrrq[0]);
10202 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10204 goto cleanup_nolog;
10207 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10208 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10209 ioa_cfg->needs_warm_reset = 1;
10210 ioa_cfg->reset = ipr_reset_slot_reset;
10212 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10213 WQ_MEM_RECLAIM, host->host_no);
10215 if (!ioa_cfg->reset_work_q) {
10216 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10220 ioa_cfg->reset = ipr_reset_start_bist;
10222 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10223 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10224 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10231 ipr_free_irqs(ioa_cfg);
10233 ipr_free_mem(ioa_cfg);
10235 ipr_wait_for_pci_err_recovery(ioa_cfg);
10236 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10237 pci_disable_msi(pdev);
10238 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10239 pci_disable_msix(pdev);
10243 pci_disable_device(pdev);
10244 out_release_regions:
10245 pci_release_regions(pdev);
10247 scsi_host_put(host);
10252 * ipr_initiate_ioa_bringdown - Bring down an adapter
10253 * @ioa_cfg: ioa config struct
10254 * @shutdown_type: shutdown type
10256 * Description: This function will initiate bringing down the adapter.
10257 * This consists of issuing an IOA shutdown to the adapter
10258 * to flush the cache, and running BIST.
10259 * If the caller needs to wait on the completion of the reset,
10260 * the caller must sleep on the reset_wait_q.
10265 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10266 enum ipr_shutdown_type shutdown_type)
10269 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10270 ioa_cfg->sdt_state = ABORT_DUMP;
10271 ioa_cfg->reset_retries = 0;
10272 ioa_cfg->in_ioa_bringdown = 1;
10273 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10278 * __ipr_remove - Remove a single adapter
10279 * @pdev: pci device struct
10281 * Adapter hot plug remove entry point.
10286 static void __ipr_remove(struct pci_dev *pdev)
10288 unsigned long host_lock_flags = 0;
10289 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10291 unsigned long driver_lock_flags;
10294 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10295 while (ioa_cfg->in_reset_reload) {
10296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10297 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10298 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10301 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10302 spin_lock(&ioa_cfg->hrrq[i]._lock);
10303 ioa_cfg->hrrq[i].removing_ioa = 1;
10304 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10307 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10309 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10310 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10311 flush_work(&ioa_cfg->work_q);
10312 if (ioa_cfg->reset_work_q)
10313 flush_workqueue(ioa_cfg->reset_work_q);
10314 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10315 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10317 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10318 list_del(&ioa_cfg->queue);
10319 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10321 if (ioa_cfg->sdt_state == ABORT_DUMP)
10322 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10325 ipr_free_all_resources(ioa_cfg);
10331 * ipr_remove - IOA hot plug remove entry point
10332 * @pdev: pci device struct
10334 * Adapter hot plug remove entry point.
10339 static void ipr_remove(struct pci_dev *pdev)
10341 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10345 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10347 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10349 scsi_remove_host(ioa_cfg->host);
10351 __ipr_remove(pdev);
10357 * ipr_probe - Adapter hot plug add entry point
10360 * 0 on success / non-zero on failure
10362 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10364 struct ipr_ioa_cfg *ioa_cfg;
10367 rc = ipr_probe_ioa(pdev, dev_id);
10372 ioa_cfg = pci_get_drvdata(pdev);
10373 rc = ipr_probe_ioa_part2(ioa_cfg);
10376 __ipr_remove(pdev);
10380 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10383 __ipr_remove(pdev);
10387 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10391 scsi_remove_host(ioa_cfg->host);
10392 __ipr_remove(pdev);
10396 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10400 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10402 scsi_remove_host(ioa_cfg->host);
10403 __ipr_remove(pdev);
10407 scsi_scan_host(ioa_cfg->host);
10408 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10410 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10411 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10412 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10413 ioa_cfg->iopoll_weight, ipr_iopoll);
10414 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10418 schedule_work(&ioa_cfg->work_q);
10423 * ipr_shutdown - Shutdown handler.
10424 * @pdev: pci device struct
10426 * This function is invoked upon system shutdown/reboot. It will issue
10427 * an adapter shutdown to the adapter to flush the write cache.
10432 static void ipr_shutdown(struct pci_dev *pdev)
10434 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10435 unsigned long lock_flags = 0;
10436 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10440 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10441 ioa_cfg->iopoll_weight = 0;
10442 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10443 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10446 while (ioa_cfg->in_reset_reload) {
10447 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10448 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10452 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10453 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10455 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10456 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10457 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10458 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10459 ipr_free_irqs(ioa_cfg);
10460 pci_disable_device(ioa_cfg->pdev);
10464 static struct pci_device_id ipr_pci_table[] = {
10465 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10466 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10467 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10468 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10469 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10470 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10471 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10472 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10473 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10474 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10475 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10476 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10477 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10478 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10479 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10480 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10481 IPR_USE_LONG_TRANSOP_TIMEOUT },
10482 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10483 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10484 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10485 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10486 IPR_USE_LONG_TRANSOP_TIMEOUT },
10487 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10488 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10489 IPR_USE_LONG_TRANSOP_TIMEOUT },
10490 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10491 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10492 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10493 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10494 IPR_USE_LONG_TRANSOP_TIMEOUT},
10495 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10496 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10497 IPR_USE_LONG_TRANSOP_TIMEOUT },
10498 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10499 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10500 IPR_USE_LONG_TRANSOP_TIMEOUT },
10501 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10502 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10503 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10504 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10505 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10506 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10507 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10508 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10509 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10510 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10511 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10512 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10513 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10514 IPR_USE_LONG_TRANSOP_TIMEOUT },
10515 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10516 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10517 IPR_USE_LONG_TRANSOP_TIMEOUT },
10518 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10519 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10520 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10521 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10522 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10523 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10524 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10525 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10526 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10527 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10528 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10529 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10530 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10531 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10532 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10533 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10534 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10535 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10536 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10537 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10538 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10539 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10540 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10541 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10542 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10543 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10544 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10545 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10546 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10547 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10548 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10549 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10550 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10551 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10552 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10553 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10554 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10555 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10556 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10557 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10558 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10559 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10560 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10561 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10562 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10563 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10564 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10565 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10566 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10567 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10568 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10569 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10572 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10574 static const struct pci_error_handlers ipr_err_handler = {
10575 .error_detected = ipr_pci_error_detected,
10576 .mmio_enabled = ipr_pci_mmio_enabled,
10577 .slot_reset = ipr_pci_slot_reset,
10580 static struct pci_driver ipr_driver = {
10582 .id_table = ipr_pci_table,
10583 .probe = ipr_probe,
10584 .remove = ipr_remove,
10585 .shutdown = ipr_shutdown,
10586 .err_handler = &ipr_err_handler,
10590 * ipr_halt_done - Shutdown prepare completion
10595 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10597 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10601 * ipr_halt - Issue shutdown prepare to all adapters
10604 * NOTIFY_OK on success / NOTIFY_DONE on failure
10606 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10608 struct ipr_cmnd *ipr_cmd;
10609 struct ipr_ioa_cfg *ioa_cfg;
10610 unsigned long flags = 0, driver_lock_flags;
10612 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10613 return NOTIFY_DONE;
10615 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10617 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10618 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10619 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10620 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10625 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10626 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10627 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10628 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10629 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10631 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10632 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10634 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10639 static struct notifier_block ipr_notifier = {
10644 * ipr_init - Module entry point
10647 * 0 on success / negative value on failure
10649 static int __init ipr_init(void)
10651 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10652 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10654 register_reboot_notifier(&ipr_notifier);
10655 return pci_register_driver(&ipr_driver);
10659 * ipr_exit - Module unload
10661 * Module unload entry point.
10666 static void __exit ipr_exit(void)
10668 unregister_reboot_notifier(&ipr_notifier);
10669 pci_unregister_driver(&ipr_driver);
10672 module_init(ipr_init);
10673 module_exit(ipr_exit);