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;
4006 int result, dnld_size;
4008 if (!capable(CAP_SYS_ADMIN))
4011 snprintf(fname, sizeof(fname), "%s", buf);
4013 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4014 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4018 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4020 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4021 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4022 sglist = ipr_alloc_ucode_buffer(dnld_size);
4025 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4026 release_firmware(fw_entry);
4030 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4033 dev_err(&ioa_cfg->pdev->dev,
4034 "Microcode buffer copy to DMA buffer failed\n");
4038 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4040 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4045 ipr_free_ucode_buffer(sglist);
4046 release_firmware(fw_entry);
4050 static struct device_attribute ipr_update_fw_attr = {
4052 .name = "update_fw",
4055 .store = ipr_store_update_fw
4059 * ipr_show_fw_type - Show the adapter's firmware type.
4060 * @dev: class device struct
4064 * number of bytes printed to buffer
4066 static ssize_t ipr_show_fw_type(struct device *dev,
4067 struct device_attribute *attr, char *buf)
4069 struct Scsi_Host *shost = class_to_shost(dev);
4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4071 unsigned long lock_flags = 0;
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4076 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4080 static struct device_attribute ipr_ioa_fw_type_attr = {
4085 .show = ipr_show_fw_type
4088 static struct device_attribute *ipr_ioa_attrs[] = {
4089 &ipr_fw_version_attr,
4090 &ipr_log_level_attr,
4091 &ipr_diagnostics_attr,
4092 &ipr_ioa_state_attr,
4093 &ipr_ioa_reset_attr,
4094 &ipr_update_fw_attr,
4095 &ipr_ioa_fw_type_attr,
4096 &ipr_iopoll_weight_attr,
4100 #ifdef CONFIG_SCSI_IPR_DUMP
4102 * ipr_read_dump - Dump the adapter
4103 * @filp: open sysfs file
4104 * @kobj: kobject struct
4105 * @bin_attr: bin_attribute struct
4108 * @count: buffer size
4111 * number of bytes printed to buffer
4113 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4114 struct bin_attribute *bin_attr,
4115 char *buf, loff_t off, size_t count)
4117 struct device *cdev = container_of(kobj, struct device, kobj);
4118 struct Scsi_Host *shost = class_to_shost(cdev);
4119 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4120 struct ipr_dump *dump;
4121 unsigned long lock_flags = 0;
4126 if (!capable(CAP_SYS_ADMIN))
4129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4130 dump = ioa_cfg->dump;
4132 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4136 kref_get(&dump->kref);
4137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4139 if (off > dump->driver_dump.hdr.len) {
4140 kref_put(&dump->kref, ipr_release_dump);
4144 if (off + count > dump->driver_dump.hdr.len) {
4145 count = dump->driver_dump.hdr.len - off;
4149 if (count && off < sizeof(dump->driver_dump)) {
4150 if (off + count > sizeof(dump->driver_dump))
4151 len = sizeof(dump->driver_dump) - off;
4154 src = (u8 *)&dump->driver_dump + off;
4155 memcpy(buf, src, len);
4161 off -= sizeof(dump->driver_dump);
4164 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4165 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4166 sizeof(struct ipr_sdt_entry));
4168 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4169 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4171 if (count && off < sdt_end) {
4172 if (off + count > sdt_end)
4173 len = sdt_end - off;
4176 src = (u8 *)&dump->ioa_dump + off;
4177 memcpy(buf, src, len);
4186 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4187 len = PAGE_ALIGN(off) - off;
4190 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4191 src += off & ~PAGE_MASK;
4192 memcpy(buf, src, len);
4198 kref_put(&dump->kref, ipr_release_dump);
4203 * ipr_alloc_dump - Prepare for adapter dump
4204 * @ioa_cfg: ioa config struct
4207 * 0 on success / other on failure
4209 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4211 struct ipr_dump *dump;
4213 unsigned long lock_flags = 0;
4215 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4218 ipr_err("Dump memory allocation failed\n");
4223 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4225 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4228 ipr_err("Dump memory allocation failed\n");
4233 dump->ioa_dump.ioa_data = ioa_data;
4235 kref_init(&dump->kref);
4236 dump->ioa_cfg = ioa_cfg;
4238 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4240 if (INACTIVE != ioa_cfg->sdt_state) {
4241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4242 vfree(dump->ioa_dump.ioa_data);
4247 ioa_cfg->dump = dump;
4248 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4249 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4250 ioa_cfg->dump_taken = 1;
4251 schedule_work(&ioa_cfg->work_q);
4253 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4259 * ipr_free_dump - Free adapter dump memory
4260 * @ioa_cfg: ioa config struct
4263 * 0 on success / other on failure
4265 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4267 struct ipr_dump *dump;
4268 unsigned long lock_flags = 0;
4272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4273 dump = ioa_cfg->dump;
4275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4279 ioa_cfg->dump = NULL;
4280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4282 kref_put(&dump->kref, ipr_release_dump);
4289 * ipr_write_dump - Setup dump state of adapter
4290 * @filp: open sysfs file
4291 * @kobj: kobject struct
4292 * @bin_attr: bin_attribute struct
4295 * @count: buffer size
4298 * number of bytes printed to buffer
4300 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4301 struct bin_attribute *bin_attr,
4302 char *buf, loff_t off, size_t count)
4304 struct device *cdev = container_of(kobj, struct device, kobj);
4305 struct Scsi_Host *shost = class_to_shost(cdev);
4306 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4309 if (!capable(CAP_SYS_ADMIN))
4313 rc = ipr_alloc_dump(ioa_cfg);
4314 else if (buf[0] == '0')
4315 rc = ipr_free_dump(ioa_cfg);
4325 static struct bin_attribute ipr_dump_attr = {
4328 .mode = S_IRUSR | S_IWUSR,
4331 .read = ipr_read_dump,
4332 .write = ipr_write_dump
4335 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4339 * ipr_change_queue_depth - Change the device's queue depth
4340 * @sdev: scsi device struct
4341 * @qdepth: depth to set
4342 * @reason: calling context
4347 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4349 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4350 struct ipr_resource_entry *res;
4351 unsigned long lock_flags = 0;
4353 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4354 res = (struct ipr_resource_entry *)sdev->hostdata;
4356 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4357 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4360 scsi_change_queue_depth(sdev, qdepth);
4361 return sdev->queue_depth;
4365 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4366 * @dev: device struct
4367 * @attr: device attribute structure
4371 * number of bytes printed to buffer
4373 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4375 struct scsi_device *sdev = to_scsi_device(dev);
4376 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4377 struct ipr_resource_entry *res;
4378 unsigned long lock_flags = 0;
4379 ssize_t len = -ENXIO;
4381 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4382 res = (struct ipr_resource_entry *)sdev->hostdata;
4384 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4389 static struct device_attribute ipr_adapter_handle_attr = {
4391 .name = "adapter_handle",
4394 .show = ipr_show_adapter_handle
4398 * ipr_show_resource_path - Show the resource path or the resource address for
4400 * @dev: device struct
4401 * @attr: device attribute structure
4405 * number of bytes printed to buffer
4407 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4409 struct scsi_device *sdev = to_scsi_device(dev);
4410 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4411 struct ipr_resource_entry *res;
4412 unsigned long lock_flags = 0;
4413 ssize_t len = -ENXIO;
4414 char buffer[IPR_MAX_RES_PATH_LENGTH];
4416 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4417 res = (struct ipr_resource_entry *)sdev->hostdata;
4418 if (res && ioa_cfg->sis64)
4419 len = snprintf(buf, PAGE_SIZE, "%s\n",
4420 __ipr_format_res_path(res->res_path, buffer,
4423 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4424 res->bus, res->target, res->lun);
4426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4430 static struct device_attribute ipr_resource_path_attr = {
4432 .name = "resource_path",
4435 .show = ipr_show_resource_path
4439 * ipr_show_device_id - Show the device_id for this device.
4440 * @dev: device struct
4441 * @attr: device attribute structure
4445 * number of bytes printed to buffer
4447 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4449 struct scsi_device *sdev = to_scsi_device(dev);
4450 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4451 struct ipr_resource_entry *res;
4452 unsigned long lock_flags = 0;
4453 ssize_t len = -ENXIO;
4455 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4456 res = (struct ipr_resource_entry *)sdev->hostdata;
4457 if (res && ioa_cfg->sis64)
4458 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4460 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4462 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4466 static struct device_attribute ipr_device_id_attr = {
4468 .name = "device_id",
4471 .show = ipr_show_device_id
4475 * ipr_show_resource_type - Show the resource type for this device.
4476 * @dev: device struct
4477 * @attr: device attribute structure
4481 * number of bytes printed to buffer
4483 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4485 struct scsi_device *sdev = to_scsi_device(dev);
4486 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4487 struct ipr_resource_entry *res;
4488 unsigned long lock_flags = 0;
4489 ssize_t len = -ENXIO;
4491 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4492 res = (struct ipr_resource_entry *)sdev->hostdata;
4495 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4501 static struct device_attribute ipr_resource_type_attr = {
4503 .name = "resource_type",
4506 .show = ipr_show_resource_type
4510 * ipr_show_raw_mode - Show the adapter's raw mode
4511 * @dev: class device struct
4515 * number of bytes printed to buffer
4517 static ssize_t ipr_show_raw_mode(struct device *dev,
4518 struct device_attribute *attr, char *buf)
4520 struct scsi_device *sdev = to_scsi_device(dev);
4521 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4522 struct ipr_resource_entry *res;
4523 unsigned long lock_flags = 0;
4526 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4527 res = (struct ipr_resource_entry *)sdev->hostdata;
4529 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4532 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4537 * ipr_store_raw_mode - Change the adapter's raw mode
4538 * @dev: class device struct
4542 * number of bytes printed to buffer
4544 static ssize_t ipr_store_raw_mode(struct device *dev,
4545 struct device_attribute *attr,
4546 const char *buf, size_t count)
4548 struct scsi_device *sdev = to_scsi_device(dev);
4549 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4550 struct ipr_resource_entry *res;
4551 unsigned long lock_flags = 0;
4554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4555 res = (struct ipr_resource_entry *)sdev->hostdata;
4557 if (ipr_is_af_dasd_device(res)) {
4558 res->raw_mode = simple_strtoul(buf, NULL, 10);
4561 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4562 res->raw_mode ? "enabled" : "disabled");
4567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4571 static struct device_attribute ipr_raw_mode_attr = {
4574 .mode = S_IRUGO | S_IWUSR,
4576 .show = ipr_show_raw_mode,
4577 .store = ipr_store_raw_mode
4580 static struct device_attribute *ipr_dev_attrs[] = {
4581 &ipr_adapter_handle_attr,
4582 &ipr_resource_path_attr,
4583 &ipr_device_id_attr,
4584 &ipr_resource_type_attr,
4590 * ipr_biosparam - Return the HSC mapping
4591 * @sdev: scsi device struct
4592 * @block_device: block device pointer
4593 * @capacity: capacity of the device
4594 * @parm: Array containing returned HSC values.
4596 * This function generates the HSC parms that fdisk uses.
4597 * We want to make sure we return something that places partitions
4598 * on 4k boundaries for best performance with the IOA.
4603 static int ipr_biosparam(struct scsi_device *sdev,
4604 struct block_device *block_device,
4605 sector_t capacity, int *parm)
4613 cylinders = capacity;
4614 sector_div(cylinders, (128 * 32));
4619 parm[2] = cylinders;
4625 * ipr_find_starget - Find target based on bus/target.
4626 * @starget: scsi target struct
4629 * resource entry pointer if found / NULL if not found
4631 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4633 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4634 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4635 struct ipr_resource_entry *res;
4637 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4638 if ((res->bus == starget->channel) &&
4639 (res->target == starget->id)) {
4647 static struct ata_port_info sata_port_info;
4650 * ipr_target_alloc - Prepare for commands to a SCSI target
4651 * @starget: scsi target struct
4653 * If the device is a SATA device, this function allocates an
4654 * ATA port with libata, else it does nothing.
4657 * 0 on success / non-0 on failure
4659 static int ipr_target_alloc(struct scsi_target *starget)
4661 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4662 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4663 struct ipr_sata_port *sata_port;
4664 struct ata_port *ap;
4665 struct ipr_resource_entry *res;
4666 unsigned long lock_flags;
4668 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4669 res = ipr_find_starget(starget);
4670 starget->hostdata = NULL;
4672 if (res && ipr_is_gata(res)) {
4673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4674 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4678 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4680 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4681 sata_port->ioa_cfg = ioa_cfg;
4683 sata_port->res = res;
4685 res->sata_port = sata_port;
4686 ap->private_data = sata_port;
4687 starget->hostdata = sata_port;
4693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4699 * ipr_target_destroy - Destroy a SCSI target
4700 * @starget: scsi target struct
4702 * If the device was a SATA device, this function frees the libata
4703 * ATA port, else it does nothing.
4706 static void ipr_target_destroy(struct scsi_target *starget)
4708 struct ipr_sata_port *sata_port = starget->hostdata;
4709 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4710 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4712 if (ioa_cfg->sis64) {
4713 if (!ipr_find_starget(starget)) {
4714 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4715 clear_bit(starget->id, ioa_cfg->array_ids);
4716 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4717 clear_bit(starget->id, ioa_cfg->vset_ids);
4718 else if (starget->channel == 0)
4719 clear_bit(starget->id, ioa_cfg->target_ids);
4724 starget->hostdata = NULL;
4725 ata_sas_port_destroy(sata_port->ap);
4731 * ipr_find_sdev - Find device based on bus/target/lun.
4732 * @sdev: scsi device struct
4735 * resource entry pointer if found / NULL if not found
4737 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4739 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4740 struct ipr_resource_entry *res;
4742 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4743 if ((res->bus == sdev->channel) &&
4744 (res->target == sdev->id) &&
4745 (res->lun == sdev->lun))
4753 * ipr_slave_destroy - Unconfigure a SCSI device
4754 * @sdev: scsi device struct
4759 static void ipr_slave_destroy(struct scsi_device *sdev)
4761 struct ipr_resource_entry *res;
4762 struct ipr_ioa_cfg *ioa_cfg;
4763 unsigned long lock_flags = 0;
4765 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4767 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4768 res = (struct ipr_resource_entry *) sdev->hostdata;
4771 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4772 sdev->hostdata = NULL;
4774 res->sata_port = NULL;
4776 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4780 * ipr_slave_configure - Configure a SCSI device
4781 * @sdev: scsi device struct
4783 * This function configures the specified scsi device.
4788 static int ipr_slave_configure(struct scsi_device *sdev)
4790 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4791 struct ipr_resource_entry *res;
4792 struct ata_port *ap = NULL;
4793 unsigned long lock_flags = 0;
4794 char buffer[IPR_MAX_RES_PATH_LENGTH];
4796 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4797 res = sdev->hostdata;
4799 if (ipr_is_af_dasd_device(res))
4800 sdev->type = TYPE_RAID;
4801 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4802 sdev->scsi_level = 4;
4803 sdev->no_uld_attach = 1;
4805 if (ipr_is_vset_device(res)) {
4806 sdev->scsi_level = SCSI_SPC_3;
4807 blk_queue_rq_timeout(sdev->request_queue,
4808 IPR_VSET_RW_TIMEOUT);
4809 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4811 if (ipr_is_gata(res) && res->sata_port)
4812 ap = res->sata_port->ap;
4813 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4816 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4817 ata_sas_slave_configure(sdev, ap);
4821 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4822 ipr_format_res_path(ioa_cfg,
4823 res->res_path, buffer, sizeof(buffer)));
4826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4831 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4832 * @sdev: scsi device struct
4834 * This function initializes an ATA port so that future commands
4835 * sent through queuecommand will work.
4840 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4842 struct ipr_sata_port *sata_port = NULL;
4846 if (sdev->sdev_target)
4847 sata_port = sdev->sdev_target->hostdata;
4849 rc = ata_sas_port_init(sata_port->ap);
4851 rc = ata_sas_sync_probe(sata_port->ap);
4855 ipr_slave_destroy(sdev);
4862 * ipr_slave_alloc - Prepare for commands to a device.
4863 * @sdev: scsi device struct
4865 * This function saves a pointer to the resource entry
4866 * in the scsi device struct if the device exists. We
4867 * can then use this pointer in ipr_queuecommand when
4868 * handling new commands.
4871 * 0 on success / -ENXIO if device does not exist
4873 static int ipr_slave_alloc(struct scsi_device *sdev)
4875 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4876 struct ipr_resource_entry *res;
4877 unsigned long lock_flags;
4880 sdev->hostdata = NULL;
4882 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4884 res = ipr_find_sdev(sdev);
4889 sdev->hostdata = res;
4890 if (!ipr_is_naca_model(res))
4891 res->needs_sync_complete = 1;
4893 if (ipr_is_gata(res)) {
4894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4895 return ipr_ata_slave_alloc(sdev);
4899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4905 * ipr_match_lun - Match function for specified LUN
4906 * @ipr_cmd: ipr command struct
4907 * @device: device to match (sdev)
4910 * 1 if command matches sdev / 0 if command does not match sdev
4912 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4914 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4920 * ipr_wait_for_ops - Wait for matching commands to complete
4921 * @ipr_cmd: ipr command struct
4922 * @device: device to match (sdev)
4923 * @match: match function to use
4928 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4929 int (*match)(struct ipr_cmnd *, void *))
4931 struct ipr_cmnd *ipr_cmd;
4933 unsigned long flags;
4934 struct ipr_hrr_queue *hrrq;
4935 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4936 DECLARE_COMPLETION_ONSTACK(comp);
4942 for_each_hrrq(hrrq, ioa_cfg) {
4943 spin_lock_irqsave(hrrq->lock, flags);
4944 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4945 if (match(ipr_cmd, device)) {
4946 ipr_cmd->eh_comp = ∁
4950 spin_unlock_irqrestore(hrrq->lock, flags);
4954 timeout = wait_for_completion_timeout(&comp, timeout);
4959 for_each_hrrq(hrrq, ioa_cfg) {
4960 spin_lock_irqsave(hrrq->lock, flags);
4961 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4962 if (match(ipr_cmd, device)) {
4963 ipr_cmd->eh_comp = NULL;
4967 spin_unlock_irqrestore(hrrq->lock, flags);
4971 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4973 return wait ? FAILED : SUCCESS;
4982 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
4984 struct ipr_ioa_cfg *ioa_cfg;
4985 unsigned long lock_flags = 0;
4989 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4990 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4992 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4993 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4994 dev_err(&ioa_cfg->pdev->dev,
4995 "Adapter being reset as a result of error recovery.\n");
4997 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4998 ioa_cfg->sdt_state = GET_DUMP;
5001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5002 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5003 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5005 /* If we got hit with a host reset while we were already resetting
5006 the adapter for some reason, and the reset failed. */
5007 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5012 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5018 * ipr_device_reset - Reset the device
5019 * @ioa_cfg: ioa config struct
5020 * @res: resource entry struct
5022 * This function issues a device reset to the affected device.
5023 * If the device is a SCSI device, a LUN reset will be sent
5024 * to the device first. If that does not work, a target reset
5025 * will be sent. If the device is a SATA device, a PHY reset will
5029 * 0 on success / non-zero on failure
5031 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5032 struct ipr_resource_entry *res)
5034 struct ipr_cmnd *ipr_cmd;
5035 struct ipr_ioarcb *ioarcb;
5036 struct ipr_cmd_pkt *cmd_pkt;
5037 struct ipr_ioarcb_ata_regs *regs;
5041 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5042 ioarcb = &ipr_cmd->ioarcb;
5043 cmd_pkt = &ioarcb->cmd_pkt;
5045 if (ipr_cmd->ioa_cfg->sis64) {
5046 regs = &ipr_cmd->i.ata_ioadl.regs;
5047 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5049 regs = &ioarcb->u.add_data.u.regs;
5051 ioarcb->res_handle = res->res_handle;
5052 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5053 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5054 if (ipr_is_gata(res)) {
5055 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5056 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5057 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5060 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5061 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5062 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5063 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5064 if (ipr_cmd->ioa_cfg->sis64)
5065 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5066 sizeof(struct ipr_ioasa_gata));
5068 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5069 sizeof(struct ipr_ioasa_gata));
5073 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5077 * ipr_sata_reset - Reset the SATA port
5078 * @link: SATA link to reset
5079 * @classes: class of the attached device
5081 * This function issues a SATA phy reset to the affected ATA link.
5084 * 0 on success / non-zero on failure
5086 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5087 unsigned long deadline)
5089 struct ipr_sata_port *sata_port = link->ap->private_data;
5090 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5091 struct ipr_resource_entry *res;
5092 unsigned long lock_flags = 0;
5096 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5097 while (ioa_cfg->in_reset_reload) {
5098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5099 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5100 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5103 res = sata_port->res;
5105 rc = ipr_device_reset(ioa_cfg, res);
5106 *classes = res->ata_class;
5109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5115 * ipr_eh_dev_reset - Reset the device
5116 * @scsi_cmd: scsi command struct
5118 * This function issues a device reset to the affected device.
5119 * A LUN reset will be sent to the device first. If that does
5120 * not work, a target reset will be sent.
5125 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5127 struct ipr_cmnd *ipr_cmd;
5128 struct ipr_ioa_cfg *ioa_cfg;
5129 struct ipr_resource_entry *res;
5130 struct ata_port *ap;
5132 struct ipr_hrr_queue *hrrq;
5135 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5136 res = scsi_cmd->device->hostdata;
5142 * If we are currently going through reset/reload, return failed. This will force the
5143 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5146 if (ioa_cfg->in_reset_reload)
5148 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5151 for_each_hrrq(hrrq, ioa_cfg) {
5152 spin_lock(&hrrq->_lock);
5153 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5154 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5155 if (ipr_cmd->scsi_cmd)
5156 ipr_cmd->done = ipr_scsi_eh_done;
5158 ipr_cmd->done = ipr_sata_eh_done;
5160 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5161 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5162 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5166 spin_unlock(&hrrq->_lock);
5168 res->resetting_device = 1;
5169 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5171 if (ipr_is_gata(res) && res->sata_port) {
5172 ap = res->sata_port->ap;
5173 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5174 ata_std_error_handler(ap);
5175 spin_lock_irq(scsi_cmd->device->host->host_lock);
5177 for_each_hrrq(hrrq, ioa_cfg) {
5178 spin_lock(&hrrq->_lock);
5179 list_for_each_entry(ipr_cmd,
5180 &hrrq->hrrq_pending_q, queue) {
5181 if (ipr_cmd->ioarcb.res_handle ==
5187 spin_unlock(&hrrq->_lock);
5190 rc = ipr_device_reset(ioa_cfg, res);
5191 res->resetting_device = 0;
5192 res->reset_occurred = 1;
5195 return rc ? FAILED : SUCCESS;
5198 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5201 struct ipr_ioa_cfg *ioa_cfg;
5203 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5205 spin_lock_irq(cmd->device->host->host_lock);
5206 rc = __ipr_eh_dev_reset(cmd);
5207 spin_unlock_irq(cmd->device->host->host_lock);
5210 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5216 * ipr_bus_reset_done - Op done function for bus reset.
5217 * @ipr_cmd: ipr command struct
5219 * This function is the op done function for a bus reset
5224 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5226 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5227 struct ipr_resource_entry *res;
5230 if (!ioa_cfg->sis64)
5231 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5232 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5233 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5239 * If abort has not completed, indicate the reset has, else call the
5240 * abort's done function to wake the sleeping eh thread
5242 if (ipr_cmd->sibling->sibling)
5243 ipr_cmd->sibling->sibling = NULL;
5245 ipr_cmd->sibling->done(ipr_cmd->sibling);
5247 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5252 * ipr_abort_timeout - An abort task has timed out
5253 * @ipr_cmd: ipr command struct
5255 * This function handles when an abort task times out. If this
5256 * happens we issue a bus reset since we have resources tied
5257 * up that must be freed before returning to the midlayer.
5262 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5264 struct ipr_cmnd *reset_cmd;
5265 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5266 struct ipr_cmd_pkt *cmd_pkt;
5267 unsigned long lock_flags = 0;
5270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5271 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5276 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5277 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5278 ipr_cmd->sibling = reset_cmd;
5279 reset_cmd->sibling = ipr_cmd;
5280 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5281 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5282 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5283 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5284 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5286 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5287 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5292 * ipr_cancel_op - Cancel specified op
5293 * @scsi_cmd: scsi command struct
5295 * This function cancels specified op.
5300 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5302 struct ipr_cmnd *ipr_cmd;
5303 struct ipr_ioa_cfg *ioa_cfg;
5304 struct ipr_resource_entry *res;
5305 struct ipr_cmd_pkt *cmd_pkt;
5308 struct ipr_hrr_queue *hrrq;
5311 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5312 res = scsi_cmd->device->hostdata;
5314 /* If we are currently going through reset/reload, return failed.
5315 * This will force the mid-layer to call ipr_eh_host_reset,
5316 * which will then go to sleep and wait for the reset to complete
5318 if (ioa_cfg->in_reset_reload ||
5319 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5325 * If we are aborting a timed out op, chances are that the timeout was caused
5326 * by a still not detected EEH error. In such cases, reading a register will
5327 * trigger the EEH recovery infrastructure.
5329 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5331 if (!ipr_is_gscsi(res))
5334 for_each_hrrq(hrrq, ioa_cfg) {
5335 spin_lock(&hrrq->_lock);
5336 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5337 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5338 ipr_cmd->done = ipr_scsi_eh_done;
5343 spin_unlock(&hrrq->_lock);
5349 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5350 ipr_cmd->ioarcb.res_handle = res->res_handle;
5351 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5352 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5353 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5354 ipr_cmd->u.sdev = scsi_cmd->device;
5356 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5358 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5359 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5362 * If the abort task timed out and we sent a bus reset, we will get
5363 * one the following responses to the abort
5365 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5370 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5371 if (!ipr_is_naca_model(res))
5372 res->needs_sync_complete = 1;
5375 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5379 * ipr_eh_abort - Abort a single op
5380 * @scsi_cmd: scsi command struct
5383 * 0 if scan in progress / 1 if scan is complete
5385 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5387 unsigned long lock_flags;
5388 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5391 spin_lock_irqsave(shost->host_lock, lock_flags);
5392 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5394 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5396 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5401 * ipr_eh_host_reset - Reset the host adapter
5402 * @scsi_cmd: scsi command struct
5407 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5409 unsigned long flags;
5411 struct ipr_ioa_cfg *ioa_cfg;
5415 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5417 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5418 rc = ipr_cancel_op(scsi_cmd);
5419 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5422 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5428 * ipr_handle_other_interrupt - Handle "other" interrupts
5429 * @ioa_cfg: ioa config struct
5430 * @int_reg: interrupt register
5433 * IRQ_NONE / IRQ_HANDLED
5435 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5438 irqreturn_t rc = IRQ_HANDLED;
5441 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5442 int_reg &= ~int_mask_reg;
5444 /* If an interrupt on the adapter did not occur, ignore it.
5445 * Or in the case of SIS 64, check for a stage change interrupt.
5447 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5448 if (ioa_cfg->sis64) {
5449 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5450 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5451 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5453 /* clear stage change */
5454 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5455 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5456 list_del(&ioa_cfg->reset_cmd->queue);
5457 del_timer(&ioa_cfg->reset_cmd->timer);
5458 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5466 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5467 /* Mask the interrupt */
5468 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5469 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5471 list_del(&ioa_cfg->reset_cmd->queue);
5472 del_timer(&ioa_cfg->reset_cmd->timer);
5473 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5474 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5475 if (ioa_cfg->clear_isr) {
5476 if (ipr_debug && printk_ratelimit())
5477 dev_err(&ioa_cfg->pdev->dev,
5478 "Spurious interrupt detected. 0x%08X\n", int_reg);
5479 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5480 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5484 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5485 ioa_cfg->ioa_unit_checked = 1;
5486 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5487 dev_err(&ioa_cfg->pdev->dev,
5488 "No Host RRQ. 0x%08X\n", int_reg);
5490 dev_err(&ioa_cfg->pdev->dev,
5491 "Permanent IOA failure. 0x%08X\n", int_reg);
5493 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5494 ioa_cfg->sdt_state = GET_DUMP;
5496 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5497 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5504 * ipr_isr_eh - Interrupt service routine error handler
5505 * @ioa_cfg: ioa config struct
5506 * @msg: message to log
5511 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5513 ioa_cfg->errors_logged++;
5514 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5516 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5517 ioa_cfg->sdt_state = GET_DUMP;
5519 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5522 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5523 struct list_head *doneq)
5527 struct ipr_cmnd *ipr_cmd;
5528 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5531 /* If interrupts are disabled, ignore the interrupt */
5532 if (!hrr_queue->allow_interrupts)
5535 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5536 hrr_queue->toggle_bit) {
5538 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5539 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5540 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5542 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5543 cmd_index < hrr_queue->min_cmd_id)) {
5545 "Invalid response handle from IOA: ",
5550 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5551 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5553 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5555 list_move_tail(&ipr_cmd->queue, doneq);
5557 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5558 hrr_queue->hrrq_curr++;
5560 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5561 hrr_queue->toggle_bit ^= 1u;
5564 if (budget > 0 && num_hrrq >= budget)
5571 static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5573 struct ipr_ioa_cfg *ioa_cfg;
5574 struct ipr_hrr_queue *hrrq;
5575 struct ipr_cmnd *ipr_cmd, *temp;
5576 unsigned long hrrq_flags;
5580 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5581 ioa_cfg = hrrq->ioa_cfg;
5583 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5584 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5586 if (completed_ops < budget)
5587 blk_iopoll_complete(iop);
5588 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5590 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5591 list_del(&ipr_cmd->queue);
5592 del_timer(&ipr_cmd->timer);
5593 ipr_cmd->fast_done(ipr_cmd);
5596 return completed_ops;
5600 * ipr_isr - Interrupt service routine
5602 * @devp: pointer to ioa config struct
5605 * IRQ_NONE / IRQ_HANDLED
5607 static irqreturn_t ipr_isr(int irq, void *devp)
5609 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5610 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5611 unsigned long hrrq_flags = 0;
5615 struct ipr_cmnd *ipr_cmd, *temp;
5616 irqreturn_t rc = IRQ_NONE;
5619 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5620 /* If interrupts are disabled, ignore the interrupt */
5621 if (!hrrq->allow_interrupts) {
5622 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5627 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5630 if (!ioa_cfg->clear_isr)
5633 /* Clear the PCI interrupt */
5636 writel(IPR_PCII_HRRQ_UPDATED,
5637 ioa_cfg->regs.clr_interrupt_reg32);
5638 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5639 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5640 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5642 } else if (rc == IRQ_NONE && irq_none == 0) {
5643 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5645 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5646 int_reg & IPR_PCII_HRRQ_UPDATED) {
5648 "Error clearing HRRQ: ", num_hrrq);
5655 if (unlikely(rc == IRQ_NONE))
5656 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5658 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5659 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5660 list_del(&ipr_cmd->queue);
5661 del_timer(&ipr_cmd->timer);
5662 ipr_cmd->fast_done(ipr_cmd);
5668 * ipr_isr_mhrrq - Interrupt service routine
5670 * @devp: pointer to ioa config struct
5673 * IRQ_NONE / IRQ_HANDLED
5675 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5677 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5678 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5679 unsigned long hrrq_flags = 0;
5680 struct ipr_cmnd *ipr_cmd, *temp;
5681 irqreturn_t rc = IRQ_NONE;
5684 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5686 /* If interrupts are disabled, ignore the interrupt */
5687 if (!hrrq->allow_interrupts) {
5688 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5692 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5693 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5695 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5696 blk_iopoll_sched(&hrrq->iopoll);
5697 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5701 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5704 if (ipr_process_hrrq(hrrq, -1, &doneq))
5708 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5710 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5711 list_del(&ipr_cmd->queue);
5712 del_timer(&ipr_cmd->timer);
5713 ipr_cmd->fast_done(ipr_cmd);
5719 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5720 * @ioa_cfg: ioa config struct
5721 * @ipr_cmd: ipr command struct
5724 * 0 on success / -1 on failure
5726 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5727 struct ipr_cmnd *ipr_cmd)
5730 struct scatterlist *sg;
5732 u32 ioadl_flags = 0;
5733 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5734 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5735 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5737 length = scsi_bufflen(scsi_cmd);
5741 nseg = scsi_dma_map(scsi_cmd);
5743 if (printk_ratelimit())
5744 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5748 ipr_cmd->dma_use_sg = nseg;
5750 ioarcb->data_transfer_length = cpu_to_be32(length);
5752 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5754 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5755 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5756 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5757 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5758 ioadl_flags = IPR_IOADL_FLAGS_READ;
5760 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5761 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5762 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5763 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5766 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5771 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5772 * @ioa_cfg: ioa config struct
5773 * @ipr_cmd: ipr command struct
5776 * 0 on success / -1 on failure
5778 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5779 struct ipr_cmnd *ipr_cmd)
5782 struct scatterlist *sg;
5784 u32 ioadl_flags = 0;
5785 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5786 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5787 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5789 length = scsi_bufflen(scsi_cmd);
5793 nseg = scsi_dma_map(scsi_cmd);
5795 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5799 ipr_cmd->dma_use_sg = nseg;
5801 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5802 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5803 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5804 ioarcb->data_transfer_length = cpu_to_be32(length);
5806 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5807 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5808 ioadl_flags = IPR_IOADL_FLAGS_READ;
5809 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5810 ioarcb->read_ioadl_len =
5811 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5814 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5815 ioadl = ioarcb->u.add_data.u.ioadl;
5816 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5817 offsetof(struct ipr_ioarcb, u.add_data));
5818 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5821 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5822 ioadl[i].flags_and_data_len =
5823 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5824 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5827 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5832 * ipr_erp_done - Process completion of ERP for a device
5833 * @ipr_cmd: ipr command struct
5835 * This function copies the sense buffer into the scsi_cmd
5836 * struct and pushes the scsi_done function.
5841 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5843 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5844 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5845 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5847 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5848 scsi_cmd->result |= (DID_ERROR << 16);
5849 scmd_printk(KERN_ERR, scsi_cmd,
5850 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5852 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5853 SCSI_SENSE_BUFFERSIZE);
5857 if (!ipr_is_naca_model(res))
5858 res->needs_sync_complete = 1;
5861 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5863 scsi_cmd->scsi_done(scsi_cmd);
5867 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5868 * @ipr_cmd: ipr command struct
5873 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5875 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5876 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5877 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5879 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5880 ioarcb->data_transfer_length = 0;
5881 ioarcb->read_data_transfer_length = 0;
5882 ioarcb->ioadl_len = 0;
5883 ioarcb->read_ioadl_len = 0;
5884 ioasa->hdr.ioasc = 0;
5885 ioasa->hdr.residual_data_len = 0;
5887 if (ipr_cmd->ioa_cfg->sis64)
5888 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5889 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5891 ioarcb->write_ioadl_addr =
5892 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5893 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5898 * ipr_erp_request_sense - Send request sense to a device
5899 * @ipr_cmd: ipr command struct
5901 * This function sends a request sense to a device as a result
5902 * of a check condition.
5907 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5909 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5910 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5912 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5913 ipr_erp_done(ipr_cmd);
5917 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5919 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5920 cmd_pkt->cdb[0] = REQUEST_SENSE;
5921 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5922 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5924 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5926 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5927 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5929 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5930 IPR_REQUEST_SENSE_TIMEOUT * 2);
5934 * ipr_erp_cancel_all - Send cancel all to a device
5935 * @ipr_cmd: ipr command struct
5937 * This function sends a cancel all to a device to clear the
5938 * queue. If we are running TCQ on the device, QERR is set to 1,
5939 * which means all outstanding ops have been dropped on the floor.
5940 * Cancel all will return them to us.
5945 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5947 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5948 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5949 struct ipr_cmd_pkt *cmd_pkt;
5953 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5955 if (!scsi_cmd->device->simple_tags) {
5956 ipr_erp_request_sense(ipr_cmd);
5960 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5961 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5962 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5964 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5965 IPR_CANCEL_ALL_TIMEOUT);
5969 * ipr_dump_ioasa - Dump contents of IOASA
5970 * @ioa_cfg: ioa config struct
5971 * @ipr_cmd: ipr command struct
5972 * @res: resource entry struct
5974 * This function is invoked by the interrupt handler when ops
5975 * fail. It will log the IOASA if appropriate. Only called
5981 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5982 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5986 u32 ioasc, fd_ioasc;
5987 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5988 __be32 *ioasa_data = (__be32 *)ioasa;
5991 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5992 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5997 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6000 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6001 error_index = ipr_get_error(fd_ioasc);
6003 error_index = ipr_get_error(ioasc);
6005 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6006 /* Don't log an error if the IOA already logged one */
6007 if (ioasa->hdr.ilid != 0)
6010 if (!ipr_is_gscsi(res))
6013 if (ipr_error_table[error_index].log_ioasa == 0)
6017 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6019 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6020 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6021 data_len = sizeof(struct ipr_ioasa64);
6022 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6023 data_len = sizeof(struct ipr_ioasa);
6025 ipr_err("IOASA Dump:\n");
6027 for (i = 0; i < data_len / 4; i += 4) {
6028 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6029 be32_to_cpu(ioasa_data[i]),
6030 be32_to_cpu(ioasa_data[i+1]),
6031 be32_to_cpu(ioasa_data[i+2]),
6032 be32_to_cpu(ioasa_data[i+3]));
6037 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6039 * @sense_buf: sense data buffer
6044 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6047 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6048 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6049 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6050 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6052 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6054 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6057 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6059 if (ipr_is_vset_device(res) &&
6060 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6061 ioasa->u.vset.failing_lba_hi != 0) {
6062 sense_buf[0] = 0x72;
6063 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6064 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6065 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6069 sense_buf[9] = 0x0A;
6070 sense_buf[10] = 0x80;
6072 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6074 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6075 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6076 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6077 sense_buf[15] = failing_lba & 0x000000ff;
6079 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6081 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6082 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6083 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6084 sense_buf[19] = failing_lba & 0x000000ff;
6086 sense_buf[0] = 0x70;
6087 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6088 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6089 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6091 /* Illegal request */
6092 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6093 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6094 sense_buf[7] = 10; /* additional length */
6096 /* IOARCB was in error */
6097 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6098 sense_buf[15] = 0xC0;
6099 else /* Parameter data was invalid */
6100 sense_buf[15] = 0x80;
6103 ((IPR_FIELD_POINTER_MASK &
6104 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6106 (IPR_FIELD_POINTER_MASK &
6107 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6109 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6110 if (ipr_is_vset_device(res))
6111 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6113 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6115 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6116 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6117 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6118 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6119 sense_buf[6] = failing_lba & 0x000000ff;
6122 sense_buf[7] = 6; /* additional length */
6128 * ipr_get_autosense - Copy autosense data to sense buffer
6129 * @ipr_cmd: ipr command struct
6131 * This function copies the autosense buffer to the buffer
6132 * in the scsi_cmd, if there is autosense available.
6135 * 1 if autosense was available / 0 if not
6137 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6139 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6140 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6142 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6145 if (ipr_cmd->ioa_cfg->sis64)
6146 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6147 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6148 SCSI_SENSE_BUFFERSIZE));
6150 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6151 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6152 SCSI_SENSE_BUFFERSIZE));
6157 * ipr_erp_start - Process an error response for a SCSI op
6158 * @ioa_cfg: ioa config struct
6159 * @ipr_cmd: ipr command struct
6161 * This function determines whether or not to initiate ERP
6162 * on the affected device.
6167 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6168 struct ipr_cmnd *ipr_cmd)
6170 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6171 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6172 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6173 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6176 ipr_scsi_eh_done(ipr_cmd);
6180 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6181 ipr_gen_sense(ipr_cmd);
6183 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6185 switch (masked_ioasc) {
6186 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6187 if (ipr_is_naca_model(res))
6188 scsi_cmd->result |= (DID_ABORT << 16);
6190 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6192 case IPR_IOASC_IR_RESOURCE_HANDLE:
6193 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6194 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6196 case IPR_IOASC_HW_SEL_TIMEOUT:
6197 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6198 if (!ipr_is_naca_model(res))
6199 res->needs_sync_complete = 1;
6201 case IPR_IOASC_SYNC_REQUIRED:
6203 res->needs_sync_complete = 1;
6204 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6206 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6207 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6208 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6210 case IPR_IOASC_BUS_WAS_RESET:
6211 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6213 * Report the bus reset and ask for a retry. The device
6214 * will give CC/UA the next command.
6216 if (!res->resetting_device)
6217 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6218 scsi_cmd->result |= (DID_ERROR << 16);
6219 if (!ipr_is_naca_model(res))
6220 res->needs_sync_complete = 1;
6222 case IPR_IOASC_HW_DEV_BUS_STATUS:
6223 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6224 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6225 if (!ipr_get_autosense(ipr_cmd)) {
6226 if (!ipr_is_naca_model(res)) {
6227 ipr_erp_cancel_all(ipr_cmd);
6232 if (!ipr_is_naca_model(res))
6233 res->needs_sync_complete = 1;
6235 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6237 case IPR_IOASC_IR_NON_OPTIMIZED:
6238 if (res->raw_mode) {
6240 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6242 scsi_cmd->result |= (DID_ERROR << 16);
6245 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6246 scsi_cmd->result |= (DID_ERROR << 16);
6247 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6248 res->needs_sync_complete = 1;
6252 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6253 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6254 scsi_cmd->scsi_done(scsi_cmd);
6258 * ipr_scsi_done - mid-layer done function
6259 * @ipr_cmd: ipr command struct
6261 * This function is invoked by the interrupt handler for
6262 * ops generated by the SCSI mid-layer
6267 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6270 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6271 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6272 unsigned long lock_flags;
6274 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6276 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6277 scsi_dma_unmap(scsi_cmd);
6279 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6280 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6281 scsi_cmd->scsi_done(scsi_cmd);
6282 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6285 spin_lock(&ipr_cmd->hrrq->_lock);
6286 ipr_erp_start(ioa_cfg, ipr_cmd);
6287 spin_unlock(&ipr_cmd->hrrq->_lock);
6288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6293 * ipr_queuecommand - Queue a mid-layer request
6294 * @shost: scsi host struct
6295 * @scsi_cmd: scsi command struct
6297 * This function queues a request generated by the mid-layer.
6301 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6302 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6304 static int ipr_queuecommand(struct Scsi_Host *shost,
6305 struct scsi_cmnd *scsi_cmd)
6307 struct ipr_ioa_cfg *ioa_cfg;
6308 struct ipr_resource_entry *res;
6309 struct ipr_ioarcb *ioarcb;
6310 struct ipr_cmnd *ipr_cmd;
6311 unsigned long hrrq_flags, lock_flags;
6313 struct ipr_hrr_queue *hrrq;
6316 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6318 scsi_cmd->result = (DID_OK << 16);
6319 res = scsi_cmd->device->hostdata;
6321 if (ipr_is_gata(res) && res->sata_port) {
6322 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6323 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6324 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6328 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6329 hrrq = &ioa_cfg->hrrq[hrrq_id];
6331 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6333 * We are currently blocking all devices due to a host reset
6334 * We have told the host to stop giving us new requests, but
6335 * ERP ops don't count. FIXME
6337 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6338 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6339 return SCSI_MLQUEUE_HOST_BUSY;
6343 * FIXME - Create scsi_set_host_offline interface
6344 * and the ioa_is_dead check can be removed
6346 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6347 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6351 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6352 if (ipr_cmd == NULL) {
6353 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6354 return SCSI_MLQUEUE_HOST_BUSY;
6356 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6358 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6359 ioarcb = &ipr_cmd->ioarcb;
6361 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6362 ipr_cmd->scsi_cmd = scsi_cmd;
6363 ipr_cmd->done = ipr_scsi_eh_done;
6365 if (ipr_is_gscsi(res)) {
6366 if (scsi_cmd->underflow == 0)
6367 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6369 if (res->reset_occurred) {
6370 res->reset_occurred = 0;
6371 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6375 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6376 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6378 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6379 if (scsi_cmd->flags & SCMD_TAGGED)
6380 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6382 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6385 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6386 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6389 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6390 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6392 if (scsi_cmd->underflow == 0)
6393 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6397 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6399 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6401 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6402 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6403 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6404 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6406 scsi_dma_unmap(scsi_cmd);
6407 return SCSI_MLQUEUE_HOST_BUSY;
6410 if (unlikely(hrrq->ioa_is_dead)) {
6411 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6412 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6413 scsi_dma_unmap(scsi_cmd);
6417 ioarcb->res_handle = res->res_handle;
6418 if (res->needs_sync_complete) {
6419 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6420 res->needs_sync_complete = 0;
6422 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6423 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6424 ipr_send_command(ipr_cmd);
6425 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6429 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6430 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6431 scsi_cmd->result = (DID_NO_CONNECT << 16);
6432 scsi_cmd->scsi_done(scsi_cmd);
6433 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6438 * ipr_ioctl - IOCTL handler
6439 * @sdev: scsi device struct
6444 * 0 on success / other on failure
6446 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6448 struct ipr_resource_entry *res;
6450 res = (struct ipr_resource_entry *)sdev->hostdata;
6451 if (res && ipr_is_gata(res)) {
6452 if (cmd == HDIO_GET_IDENTITY)
6454 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6461 * ipr_info - Get information about the card/driver
6462 * @scsi_host: scsi host struct
6465 * pointer to buffer with description string
6467 static const char *ipr_ioa_info(struct Scsi_Host *host)
6469 static char buffer[512];
6470 struct ipr_ioa_cfg *ioa_cfg;
6471 unsigned long lock_flags = 0;
6473 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6475 spin_lock_irqsave(host->host_lock, lock_flags);
6476 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6477 spin_unlock_irqrestore(host->host_lock, lock_flags);
6482 static struct scsi_host_template driver_template = {
6483 .module = THIS_MODULE,
6485 .info = ipr_ioa_info,
6487 .queuecommand = ipr_queuecommand,
6488 .eh_abort_handler = ipr_eh_abort,
6489 .eh_device_reset_handler = ipr_eh_dev_reset,
6490 .eh_host_reset_handler = ipr_eh_host_reset,
6491 .slave_alloc = ipr_slave_alloc,
6492 .slave_configure = ipr_slave_configure,
6493 .slave_destroy = ipr_slave_destroy,
6494 .scan_finished = ipr_scan_finished,
6495 .target_alloc = ipr_target_alloc,
6496 .target_destroy = ipr_target_destroy,
6497 .change_queue_depth = ipr_change_queue_depth,
6498 .bios_param = ipr_biosparam,
6499 .can_queue = IPR_MAX_COMMANDS,
6501 .sg_tablesize = IPR_MAX_SGLIST,
6502 .max_sectors = IPR_IOA_MAX_SECTORS,
6503 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6504 .use_clustering = ENABLE_CLUSTERING,
6505 .shost_attrs = ipr_ioa_attrs,
6506 .sdev_attrs = ipr_dev_attrs,
6507 .proc_name = IPR_NAME,
6511 * ipr_ata_phy_reset - libata phy_reset handler
6512 * @ap: ata port to reset
6515 static void ipr_ata_phy_reset(struct ata_port *ap)
6517 unsigned long flags;
6518 struct ipr_sata_port *sata_port = ap->private_data;
6519 struct ipr_resource_entry *res = sata_port->res;
6520 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6524 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6525 while (ioa_cfg->in_reset_reload) {
6526 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6527 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6528 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6531 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6534 rc = ipr_device_reset(ioa_cfg, res);
6537 ap->link.device[0].class = ATA_DEV_NONE;
6541 ap->link.device[0].class = res->ata_class;
6542 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6543 ap->link.device[0].class = ATA_DEV_NONE;
6546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6551 * ipr_ata_post_internal - Cleanup after an internal command
6552 * @qc: ATA queued command
6557 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6559 struct ipr_sata_port *sata_port = qc->ap->private_data;
6560 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6561 struct ipr_cmnd *ipr_cmd;
6562 struct ipr_hrr_queue *hrrq;
6563 unsigned long flags;
6565 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6566 while (ioa_cfg->in_reset_reload) {
6567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6568 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6569 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6572 for_each_hrrq(hrrq, ioa_cfg) {
6573 spin_lock(&hrrq->_lock);
6574 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6575 if (ipr_cmd->qc == qc) {
6576 ipr_device_reset(ioa_cfg, sata_port->res);
6580 spin_unlock(&hrrq->_lock);
6582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6586 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6587 * @regs: destination
6588 * @tf: source ATA taskfile
6593 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6594 struct ata_taskfile *tf)
6596 regs->feature = tf->feature;
6597 regs->nsect = tf->nsect;
6598 regs->lbal = tf->lbal;
6599 regs->lbam = tf->lbam;
6600 regs->lbah = tf->lbah;
6601 regs->device = tf->device;
6602 regs->command = tf->command;
6603 regs->hob_feature = tf->hob_feature;
6604 regs->hob_nsect = tf->hob_nsect;
6605 regs->hob_lbal = tf->hob_lbal;
6606 regs->hob_lbam = tf->hob_lbam;
6607 regs->hob_lbah = tf->hob_lbah;
6608 regs->ctl = tf->ctl;
6612 * ipr_sata_done - done function for SATA commands
6613 * @ipr_cmd: ipr command struct
6615 * This function is invoked by the interrupt handler for
6616 * ops generated by the SCSI mid-layer to SATA devices
6621 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6624 struct ata_queued_cmd *qc = ipr_cmd->qc;
6625 struct ipr_sata_port *sata_port = qc->ap->private_data;
6626 struct ipr_resource_entry *res = sata_port->res;
6627 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6629 spin_lock(&ipr_cmd->hrrq->_lock);
6630 if (ipr_cmd->ioa_cfg->sis64)
6631 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6632 sizeof(struct ipr_ioasa_gata));
6634 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6635 sizeof(struct ipr_ioasa_gata));
6636 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6638 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6639 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6641 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6642 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6644 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6645 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6646 spin_unlock(&ipr_cmd->hrrq->_lock);
6647 ata_qc_complete(qc);
6651 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6652 * @ipr_cmd: ipr command struct
6653 * @qc: ATA queued command
6656 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6657 struct ata_queued_cmd *qc)
6659 u32 ioadl_flags = 0;
6660 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6661 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6662 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6663 int len = qc->nbytes;
6664 struct scatterlist *sg;
6666 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6671 if (qc->dma_dir == DMA_TO_DEVICE) {
6672 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6673 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6674 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6675 ioadl_flags = IPR_IOADL_FLAGS_READ;
6677 ioarcb->data_transfer_length = cpu_to_be32(len);
6679 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6680 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6681 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6683 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6684 ioadl64->flags = cpu_to_be32(ioadl_flags);
6685 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6686 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6688 last_ioadl64 = ioadl64;
6692 if (likely(last_ioadl64))
6693 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6697 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6698 * @ipr_cmd: ipr command struct
6699 * @qc: ATA queued command
6702 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6703 struct ata_queued_cmd *qc)
6705 u32 ioadl_flags = 0;
6706 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6707 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6708 struct ipr_ioadl_desc *last_ioadl = NULL;
6709 int len = qc->nbytes;
6710 struct scatterlist *sg;
6716 if (qc->dma_dir == DMA_TO_DEVICE) {
6717 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6718 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6719 ioarcb->data_transfer_length = cpu_to_be32(len);
6721 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6722 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6723 ioadl_flags = IPR_IOADL_FLAGS_READ;
6724 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6725 ioarcb->read_ioadl_len =
6726 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6729 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6730 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6731 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6737 if (likely(last_ioadl))
6738 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6742 * ipr_qc_defer - Get a free ipr_cmd
6743 * @qc: queued command
6748 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6750 struct ata_port *ap = qc->ap;
6751 struct ipr_sata_port *sata_port = ap->private_data;
6752 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6753 struct ipr_cmnd *ipr_cmd;
6754 struct ipr_hrr_queue *hrrq;
6757 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6758 hrrq = &ioa_cfg->hrrq[hrrq_id];
6760 qc->lldd_task = NULL;
6761 spin_lock(&hrrq->_lock);
6762 if (unlikely(hrrq->ioa_is_dead)) {
6763 spin_unlock(&hrrq->_lock);
6767 if (unlikely(!hrrq->allow_cmds)) {
6768 spin_unlock(&hrrq->_lock);
6769 return ATA_DEFER_LINK;
6772 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6773 if (ipr_cmd == NULL) {
6774 spin_unlock(&hrrq->_lock);
6775 return ATA_DEFER_LINK;
6778 qc->lldd_task = ipr_cmd;
6779 spin_unlock(&hrrq->_lock);
6784 * ipr_qc_issue - Issue a SATA qc to a device
6785 * @qc: queued command
6790 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6792 struct ata_port *ap = qc->ap;
6793 struct ipr_sata_port *sata_port = ap->private_data;
6794 struct ipr_resource_entry *res = sata_port->res;
6795 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6796 struct ipr_cmnd *ipr_cmd;
6797 struct ipr_ioarcb *ioarcb;
6798 struct ipr_ioarcb_ata_regs *regs;
6800 if (qc->lldd_task == NULL)
6803 ipr_cmd = qc->lldd_task;
6804 if (ipr_cmd == NULL)
6805 return AC_ERR_SYSTEM;
6807 qc->lldd_task = NULL;
6808 spin_lock(&ipr_cmd->hrrq->_lock);
6809 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6810 ipr_cmd->hrrq->ioa_is_dead)) {
6811 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6812 spin_unlock(&ipr_cmd->hrrq->_lock);
6813 return AC_ERR_SYSTEM;
6816 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
6817 ioarcb = &ipr_cmd->ioarcb;
6819 if (ioa_cfg->sis64) {
6820 regs = &ipr_cmd->i.ata_ioadl.regs;
6821 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6823 regs = &ioarcb->u.add_data.u.regs;
6825 memset(regs, 0, sizeof(*regs));
6826 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6828 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
6830 ipr_cmd->done = ipr_sata_done;
6831 ipr_cmd->ioarcb.res_handle = res->res_handle;
6832 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6833 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6834 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6835 ipr_cmd->dma_use_sg = qc->n_elem;
6838 ipr_build_ata_ioadl64(ipr_cmd, qc);
6840 ipr_build_ata_ioadl(ipr_cmd, qc);
6842 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6843 ipr_copy_sata_tf(regs, &qc->tf);
6844 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6845 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6847 switch (qc->tf.protocol) {
6848 case ATA_PROT_NODATA:
6853 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6856 case ATAPI_PROT_PIO:
6857 case ATAPI_PROT_NODATA:
6858 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6861 case ATAPI_PROT_DMA:
6862 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6863 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6868 spin_unlock(&ipr_cmd->hrrq->_lock);
6869 return AC_ERR_INVALID;
6872 ipr_send_command(ipr_cmd);
6873 spin_unlock(&ipr_cmd->hrrq->_lock);
6879 * ipr_qc_fill_rtf - Read result TF
6880 * @qc: ATA queued command
6885 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6887 struct ipr_sata_port *sata_port = qc->ap->private_data;
6888 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6889 struct ata_taskfile *tf = &qc->result_tf;
6891 tf->feature = g->error;
6892 tf->nsect = g->nsect;
6896 tf->device = g->device;
6897 tf->command = g->status;
6898 tf->hob_nsect = g->hob_nsect;
6899 tf->hob_lbal = g->hob_lbal;
6900 tf->hob_lbam = g->hob_lbam;
6901 tf->hob_lbah = g->hob_lbah;
6906 static struct ata_port_operations ipr_sata_ops = {
6907 .phy_reset = ipr_ata_phy_reset,
6908 .hardreset = ipr_sata_reset,
6909 .post_internal_cmd = ipr_ata_post_internal,
6910 .qc_prep = ata_noop_qc_prep,
6911 .qc_defer = ipr_qc_defer,
6912 .qc_issue = ipr_qc_issue,
6913 .qc_fill_rtf = ipr_qc_fill_rtf,
6914 .port_start = ata_sas_port_start,
6915 .port_stop = ata_sas_port_stop
6918 static struct ata_port_info sata_port_info = {
6919 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6921 .pio_mask = ATA_PIO4_ONLY,
6922 .mwdma_mask = ATA_MWDMA2,
6923 .udma_mask = ATA_UDMA6,
6924 .port_ops = &ipr_sata_ops
6927 #ifdef CONFIG_PPC_PSERIES
6928 static const u16 ipr_blocked_processors[] = {
6940 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6941 * @ioa_cfg: ioa cfg struct
6943 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6944 * certain pSeries hardware. This function determines if the given
6945 * adapter is in one of these confgurations or not.
6948 * 1 if adapter is not supported / 0 if adapter is supported
6950 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6954 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6955 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
6956 if (pvr_version_is(ipr_blocked_processors[i]))
6963 #define ipr_invalid_adapter(ioa_cfg) 0
6967 * ipr_ioa_bringdown_done - IOA bring down completion.
6968 * @ipr_cmd: ipr command struct
6970 * This function processes the completion of an adapter bring down.
6971 * It wakes any reset sleepers.
6976 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6978 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6982 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6984 spin_unlock_irq(ioa_cfg->host->host_lock);
6985 scsi_unblock_requests(ioa_cfg->host);
6986 spin_lock_irq(ioa_cfg->host->host_lock);
6989 ioa_cfg->in_reset_reload = 0;
6990 ioa_cfg->reset_retries = 0;
6991 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6992 spin_lock(&ioa_cfg->hrrq[i]._lock);
6993 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6994 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6998 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6999 wake_up_all(&ioa_cfg->reset_wait_q);
7002 return IPR_RC_JOB_RETURN;
7006 * ipr_ioa_reset_done - IOA reset completion.
7007 * @ipr_cmd: ipr command struct
7009 * This function processes the completion of an adapter reset.
7010 * It schedules any necessary mid-layer add/removes and
7011 * wakes any reset sleepers.
7016 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7019 struct ipr_resource_entry *res;
7020 struct ipr_hostrcb *hostrcb, *temp;
7024 ioa_cfg->in_reset_reload = 0;
7025 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7026 spin_lock(&ioa_cfg->hrrq[j]._lock);
7027 ioa_cfg->hrrq[j].allow_cmds = 1;
7028 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7031 ioa_cfg->reset_cmd = NULL;
7032 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7034 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7035 if (res->add_to_ml || res->del_from_ml) {
7040 schedule_work(&ioa_cfg->work_q);
7042 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7043 list_del(&hostrcb->queue);
7044 if (i++ < IPR_NUM_LOG_HCAMS)
7045 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7047 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7050 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7051 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7053 ioa_cfg->reset_retries = 0;
7054 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7055 wake_up_all(&ioa_cfg->reset_wait_q);
7057 spin_unlock(ioa_cfg->host->host_lock);
7058 scsi_unblock_requests(ioa_cfg->host);
7059 spin_lock(ioa_cfg->host->host_lock);
7061 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
7062 scsi_block_requests(ioa_cfg->host);
7064 schedule_work(&ioa_cfg->work_q);
7066 return IPR_RC_JOB_RETURN;
7070 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7071 * @supported_dev: supported device struct
7072 * @vpids: vendor product id struct
7077 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7078 struct ipr_std_inq_vpids *vpids)
7080 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7081 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7082 supported_dev->num_records = 1;
7083 supported_dev->data_length =
7084 cpu_to_be16(sizeof(struct ipr_supported_device));
7085 supported_dev->reserved = 0;
7089 * ipr_set_supported_devs - Send Set Supported Devices for a device
7090 * @ipr_cmd: ipr command struct
7092 * This function sends a Set Supported Devices to the adapter
7095 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7097 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7099 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7100 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7101 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7102 struct ipr_resource_entry *res = ipr_cmd->u.res;
7104 ipr_cmd->job_step = ipr_ioa_reset_done;
7106 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7107 if (!ipr_is_scsi_disk(res))
7110 ipr_cmd->u.res = res;
7111 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7113 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7114 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7115 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7117 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7118 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7119 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7120 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7122 ipr_init_ioadl(ipr_cmd,
7123 ioa_cfg->vpd_cbs_dma +
7124 offsetof(struct ipr_misc_cbs, supp_dev),
7125 sizeof(struct ipr_supported_device),
7126 IPR_IOADL_FLAGS_WRITE_LAST);
7128 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7129 IPR_SET_SUP_DEVICE_TIMEOUT);
7131 if (!ioa_cfg->sis64)
7132 ipr_cmd->job_step = ipr_set_supported_devs;
7134 return IPR_RC_JOB_RETURN;
7138 return IPR_RC_JOB_CONTINUE;
7142 * ipr_get_mode_page - Locate specified mode page
7143 * @mode_pages: mode page buffer
7144 * @page_code: page code to find
7145 * @len: minimum required length for mode page
7148 * pointer to mode page / NULL on failure
7150 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7151 u32 page_code, u32 len)
7153 struct ipr_mode_page_hdr *mode_hdr;
7157 if (!mode_pages || (mode_pages->hdr.length == 0))
7160 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7161 mode_hdr = (struct ipr_mode_page_hdr *)
7162 (mode_pages->data + mode_pages->hdr.block_desc_len);
7165 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7166 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7170 page_length = (sizeof(struct ipr_mode_page_hdr) +
7171 mode_hdr->page_length);
7172 length -= page_length;
7173 mode_hdr = (struct ipr_mode_page_hdr *)
7174 ((unsigned long)mode_hdr + page_length);
7181 * ipr_check_term_power - Check for term power errors
7182 * @ioa_cfg: ioa config struct
7183 * @mode_pages: IOAFP mode pages buffer
7185 * Check the IOAFP's mode page 28 for term power errors
7190 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7191 struct ipr_mode_pages *mode_pages)
7195 struct ipr_dev_bus_entry *bus;
7196 struct ipr_mode_page28 *mode_page;
7198 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7199 sizeof(struct ipr_mode_page28));
7201 entry_length = mode_page->entry_length;
7203 bus = mode_page->bus;
7205 for (i = 0; i < mode_page->num_entries; i++) {
7206 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7207 dev_err(&ioa_cfg->pdev->dev,
7208 "Term power is absent on scsi bus %d\n",
7212 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7217 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7218 * @ioa_cfg: ioa config struct
7220 * Looks through the config table checking for SES devices. If
7221 * the SES device is in the SES table indicating a maximum SCSI
7222 * bus speed, the speed is limited for the bus.
7227 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7232 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7233 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7234 ioa_cfg->bus_attr[i].bus_width);
7236 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7237 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7242 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7243 * @ioa_cfg: ioa config struct
7244 * @mode_pages: mode page 28 buffer
7246 * Updates mode page 28 based on driver configuration
7251 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7252 struct ipr_mode_pages *mode_pages)
7254 int i, entry_length;
7255 struct ipr_dev_bus_entry *bus;
7256 struct ipr_bus_attributes *bus_attr;
7257 struct ipr_mode_page28 *mode_page;
7259 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7260 sizeof(struct ipr_mode_page28));
7262 entry_length = mode_page->entry_length;
7264 /* Loop for each device bus entry */
7265 for (i = 0, bus = mode_page->bus;
7266 i < mode_page->num_entries;
7267 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7268 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7269 dev_err(&ioa_cfg->pdev->dev,
7270 "Invalid resource address reported: 0x%08X\n",
7271 IPR_GET_PHYS_LOC(bus->res_addr));
7275 bus_attr = &ioa_cfg->bus_attr[i];
7276 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7277 bus->bus_width = bus_attr->bus_width;
7278 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7279 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7280 if (bus_attr->qas_enabled)
7281 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7283 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7288 * ipr_build_mode_select - Build a mode select command
7289 * @ipr_cmd: ipr command struct
7290 * @res_handle: resource handle to send command to
7291 * @parm: Byte 2 of Mode Sense command
7292 * @dma_addr: DMA buffer address
7293 * @xfer_len: data transfer length
7298 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7299 __be32 res_handle, u8 parm,
7300 dma_addr_t dma_addr, u8 xfer_len)
7302 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7304 ioarcb->res_handle = res_handle;
7305 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7306 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7307 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7308 ioarcb->cmd_pkt.cdb[1] = parm;
7309 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7311 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7315 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7316 * @ipr_cmd: ipr command struct
7318 * This function sets up the SCSI bus attributes and sends
7319 * a Mode Select for Page 28 to activate them.
7324 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7327 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7331 ipr_scsi_bus_speed_limit(ioa_cfg);
7332 ipr_check_term_power(ioa_cfg, mode_pages);
7333 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7334 length = mode_pages->hdr.length + 1;
7335 mode_pages->hdr.length = 0;
7337 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7338 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7341 ipr_cmd->job_step = ipr_set_supported_devs;
7342 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7343 struct ipr_resource_entry, queue);
7344 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7347 return IPR_RC_JOB_RETURN;
7351 * ipr_build_mode_sense - Builds a mode sense command
7352 * @ipr_cmd: ipr command struct
7353 * @res: resource entry struct
7354 * @parm: Byte 2 of mode sense command
7355 * @dma_addr: DMA address of mode sense buffer
7356 * @xfer_len: Size of DMA buffer
7361 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7363 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7365 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7367 ioarcb->res_handle = res_handle;
7368 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7369 ioarcb->cmd_pkt.cdb[2] = parm;
7370 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7371 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7373 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7377 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7378 * @ipr_cmd: ipr command struct
7380 * This function handles the failure of an IOA bringup command.
7385 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7387 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7388 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7390 dev_err(&ioa_cfg->pdev->dev,
7391 "0x%02X failed with IOASC: 0x%08X\n",
7392 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7394 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7395 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7396 return IPR_RC_JOB_RETURN;
7400 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7401 * @ipr_cmd: ipr command struct
7403 * This function handles the failure of a Mode Sense to the IOAFP.
7404 * Some adapters do not handle all mode pages.
7407 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7409 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7411 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7412 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7414 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7415 ipr_cmd->job_step = ipr_set_supported_devs;
7416 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7417 struct ipr_resource_entry, queue);
7418 return IPR_RC_JOB_CONTINUE;
7421 return ipr_reset_cmd_failed(ipr_cmd);
7425 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7426 * @ipr_cmd: ipr command struct
7428 * This function send a Page 28 mode sense to the IOA to
7429 * retrieve SCSI bus attributes.
7434 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7439 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7440 0x28, ioa_cfg->vpd_cbs_dma +
7441 offsetof(struct ipr_misc_cbs, mode_pages),
7442 sizeof(struct ipr_mode_pages));
7444 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7445 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7447 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7450 return IPR_RC_JOB_RETURN;
7454 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7455 * @ipr_cmd: ipr command struct
7457 * This function enables dual IOA RAID support if possible.
7462 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7464 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7465 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7466 struct ipr_mode_page24 *mode_page;
7470 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7471 sizeof(struct ipr_mode_page24));
7474 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7476 length = mode_pages->hdr.length + 1;
7477 mode_pages->hdr.length = 0;
7479 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7480 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7483 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7484 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7487 return IPR_RC_JOB_RETURN;
7491 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7492 * @ipr_cmd: ipr command struct
7494 * This function handles the failure of a Mode Sense to the IOAFP.
7495 * Some adapters do not handle all mode pages.
7498 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7500 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7502 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7504 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7505 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7506 return IPR_RC_JOB_CONTINUE;
7509 return ipr_reset_cmd_failed(ipr_cmd);
7513 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7514 * @ipr_cmd: ipr command struct
7516 * This function send a mode sense to the IOA to retrieve
7517 * the IOA Advanced Function Control mode page.
7522 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7524 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7527 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7528 0x24, ioa_cfg->vpd_cbs_dma +
7529 offsetof(struct ipr_misc_cbs, mode_pages),
7530 sizeof(struct ipr_mode_pages));
7532 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7533 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7535 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7538 return IPR_RC_JOB_RETURN;
7542 * ipr_init_res_table - Initialize the resource table
7543 * @ipr_cmd: ipr command struct
7545 * This function looks through the existing resource table, comparing
7546 * it with the config table. This function will take care of old/new
7547 * devices and schedule adding/removing them from the mid-layer
7551 * IPR_RC_JOB_CONTINUE
7553 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7555 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7556 struct ipr_resource_entry *res, *temp;
7557 struct ipr_config_table_entry_wrapper cfgtew;
7558 int entries, found, flag, i;
7563 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7565 flag = ioa_cfg->u.cfg_table->hdr.flags;
7567 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7568 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7570 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7571 list_move_tail(&res->queue, &old_res);
7574 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7576 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7578 for (i = 0; i < entries; i++) {
7580 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7582 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7585 list_for_each_entry_safe(res, temp, &old_res, queue) {
7586 if (ipr_is_same_device(res, &cfgtew)) {
7587 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7594 if (list_empty(&ioa_cfg->free_res_q)) {
7595 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7600 res = list_entry(ioa_cfg->free_res_q.next,
7601 struct ipr_resource_entry, queue);
7602 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7603 ipr_init_res_entry(res, &cfgtew);
7605 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7606 res->sdev->allow_restart = 1;
7609 ipr_update_res_entry(res, &cfgtew);
7612 list_for_each_entry_safe(res, temp, &old_res, queue) {
7614 res->del_from_ml = 1;
7615 res->res_handle = IPR_INVALID_RES_HANDLE;
7616 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7620 list_for_each_entry_safe(res, temp, &old_res, queue) {
7621 ipr_clear_res_target(res);
7622 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7625 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7626 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7628 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7631 return IPR_RC_JOB_CONTINUE;
7635 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7636 * @ipr_cmd: ipr command struct
7638 * This function sends a Query IOA Configuration command
7639 * to the adapter to retrieve the IOA configuration table.
7644 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7646 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7648 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7649 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7652 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7653 ioa_cfg->dual_raid = 1;
7654 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7655 ucode_vpd->major_release, ucode_vpd->card_type,
7656 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7657 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7658 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7660 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7661 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7662 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7663 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7665 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7666 IPR_IOADL_FLAGS_READ_LAST);
7668 ipr_cmd->job_step = ipr_init_res_table;
7670 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7673 return IPR_RC_JOB_RETURN;
7676 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7678 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7680 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7681 return IPR_RC_JOB_CONTINUE;
7683 return ipr_reset_cmd_failed(ipr_cmd);
7686 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7687 __be32 res_handle, u8 sa_code)
7689 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7691 ioarcb->res_handle = res_handle;
7692 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7693 ioarcb->cmd_pkt.cdb[1] = sa_code;
7694 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7698 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7704 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7706 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7707 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7708 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7712 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7714 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7715 ipr_build_ioa_service_action(ipr_cmd,
7716 cpu_to_be32(IPR_IOA_RES_HANDLE),
7717 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7719 ioarcb->cmd_pkt.cdb[2] = 0x40;
7721 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7722 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7723 IPR_SET_SUP_DEVICE_TIMEOUT);
7726 return IPR_RC_JOB_RETURN;
7730 return IPR_RC_JOB_CONTINUE;
7734 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7735 * @ipr_cmd: ipr command struct
7737 * This utility function sends an inquiry to the adapter.
7742 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7743 dma_addr_t dma_addr, u8 xfer_len)
7745 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7748 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7749 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7751 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7752 ioarcb->cmd_pkt.cdb[1] = flags;
7753 ioarcb->cmd_pkt.cdb[2] = page;
7754 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7756 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7758 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7763 * ipr_inquiry_page_supported - Is the given inquiry page supported
7764 * @page0: inquiry page 0 buffer
7767 * This function determines if the specified inquiry page is supported.
7770 * 1 if page is supported / 0 if not
7772 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7776 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7777 if (page0->page[i] == page)
7784 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7785 * @ipr_cmd: ipr command struct
7787 * This function sends a Page 0xC4 inquiry to the adapter
7788 * to retrieve software VPD information.
7791 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7793 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7795 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7796 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7797 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7800 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
7801 memset(pageC4, 0, sizeof(*pageC4));
7803 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7804 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7805 (ioa_cfg->vpd_cbs_dma
7806 + offsetof(struct ipr_misc_cbs,
7808 sizeof(struct ipr_inquiry_pageC4));
7809 return IPR_RC_JOB_RETURN;
7813 return IPR_RC_JOB_CONTINUE;
7817 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7818 * @ipr_cmd: ipr command struct
7820 * This function sends a Page 0xD0 inquiry to the adapter
7821 * to retrieve adapter capabilities.
7824 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7826 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7829 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7830 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7833 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
7834 memset(cap, 0, sizeof(*cap));
7836 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7837 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7838 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7839 sizeof(struct ipr_inquiry_cap));
7840 return IPR_RC_JOB_RETURN;
7844 return IPR_RC_JOB_CONTINUE;
7848 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7849 * @ipr_cmd: ipr command struct
7851 * This function sends a Page 3 inquiry to the adapter
7852 * to retrieve software VPD information.
7855 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7857 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7859 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7863 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7865 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7866 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7867 sizeof(struct ipr_inquiry_page3));
7870 return IPR_RC_JOB_RETURN;
7874 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7875 * @ipr_cmd: ipr command struct
7877 * This function sends a Page 0 inquiry to the adapter
7878 * to retrieve supported inquiry pages.
7881 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7883 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7885 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7890 /* Grab the type out of the VPD and store it away */
7891 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7893 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7895 if (ipr_invalid_adapter(ioa_cfg)) {
7896 dev_err(&ioa_cfg->pdev->dev,
7897 "Adapter not supported in this hardware configuration.\n");
7899 if (!ipr_testmode) {
7900 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7901 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7902 list_add_tail(&ipr_cmd->queue,
7903 &ioa_cfg->hrrq->hrrq_free_q);
7904 return IPR_RC_JOB_RETURN;
7908 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7910 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7911 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7912 sizeof(struct ipr_inquiry_page0));
7915 return IPR_RC_JOB_RETURN;
7919 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7920 * @ipr_cmd: ipr command struct
7922 * This function sends a standard inquiry to the adapter.
7927 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7932 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7934 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7935 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7936 sizeof(struct ipr_ioa_vpd));
7939 return IPR_RC_JOB_RETURN;
7943 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7944 * @ipr_cmd: ipr command struct
7946 * This function send an Identify Host Request Response Queue
7947 * command to establish the HRRQ with the adapter.
7952 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7954 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7955 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7956 struct ipr_hrr_queue *hrrq;
7959 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7960 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7962 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7963 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
7965 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7966 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7970 ioarcb->cmd_pkt.cdb[1] = 0x1;
7972 if (ioa_cfg->nvectors == 1)
7973 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7975 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7977 ioarcb->cmd_pkt.cdb[2] =
7978 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7979 ioarcb->cmd_pkt.cdb[3] =
7980 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7981 ioarcb->cmd_pkt.cdb[4] =
7982 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7983 ioarcb->cmd_pkt.cdb[5] =
7984 ((u64) hrrq->host_rrq_dma) & 0xff;
7985 ioarcb->cmd_pkt.cdb[7] =
7986 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7987 ioarcb->cmd_pkt.cdb[8] =
7988 (sizeof(u32) * hrrq->size) & 0xff;
7990 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7991 ioarcb->cmd_pkt.cdb[9] =
7992 ioa_cfg->identify_hrrq_index;
7994 if (ioa_cfg->sis64) {
7995 ioarcb->cmd_pkt.cdb[10] =
7996 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7997 ioarcb->cmd_pkt.cdb[11] =
7998 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7999 ioarcb->cmd_pkt.cdb[12] =
8000 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8001 ioarcb->cmd_pkt.cdb[13] =
8002 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8005 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8006 ioarcb->cmd_pkt.cdb[14] =
8007 ioa_cfg->identify_hrrq_index;
8009 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8010 IPR_INTERNAL_TIMEOUT);
8012 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8013 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8016 return IPR_RC_JOB_RETURN;
8020 return IPR_RC_JOB_CONTINUE;
8024 * ipr_reset_timer_done - Adapter reset timer function
8025 * @ipr_cmd: ipr command struct
8027 * Description: This function is used in adapter reset processing
8028 * for timing events. If the reset_cmd pointer in the IOA
8029 * config struct is not this adapter's we are doing nested
8030 * resets and fail_all_ops will take care of freeing the
8036 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8038 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8039 unsigned long lock_flags = 0;
8041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8043 if (ioa_cfg->reset_cmd == ipr_cmd) {
8044 list_del(&ipr_cmd->queue);
8045 ipr_cmd->done(ipr_cmd);
8048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8052 * ipr_reset_start_timer - Start a timer for adapter reset job
8053 * @ipr_cmd: ipr command struct
8054 * @timeout: timeout value
8056 * Description: This function is used in adapter reset processing
8057 * for timing events. If the reset_cmd pointer in the IOA
8058 * config struct is not this adapter's we are doing nested
8059 * resets and fail_all_ops will take care of freeing the
8065 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8066 unsigned long timeout)
8070 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8071 ipr_cmd->done = ipr_reset_ioa_job;
8073 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8074 ipr_cmd->timer.expires = jiffies + timeout;
8075 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8076 add_timer(&ipr_cmd->timer);
8080 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8081 * @ioa_cfg: ioa cfg struct
8086 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8088 struct ipr_hrr_queue *hrrq;
8090 for_each_hrrq(hrrq, ioa_cfg) {
8091 spin_lock(&hrrq->_lock);
8092 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8094 /* Initialize Host RRQ pointers */
8095 hrrq->hrrq_start = hrrq->host_rrq;
8096 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8097 hrrq->hrrq_curr = hrrq->hrrq_start;
8098 hrrq->toggle_bit = 1;
8099 spin_unlock(&hrrq->_lock);
8103 ioa_cfg->identify_hrrq_index = 0;
8104 if (ioa_cfg->hrrq_num == 1)
8105 atomic_set(&ioa_cfg->hrrq_index, 0);
8107 atomic_set(&ioa_cfg->hrrq_index, 1);
8109 /* Zero out config table */
8110 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8114 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8115 * @ipr_cmd: ipr command struct
8118 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8120 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8122 unsigned long stage, stage_time;
8124 volatile u32 int_reg;
8125 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8128 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8129 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8130 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8132 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8134 /* sanity check the stage_time value */
8135 if (stage_time == 0)
8136 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8137 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8138 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8139 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8140 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8142 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8143 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8144 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8145 stage_time = ioa_cfg->transop_timeout;
8146 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8147 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8148 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8149 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8150 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8151 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8152 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8153 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8154 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8155 return IPR_RC_JOB_CONTINUE;
8159 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8160 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8161 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8162 ipr_cmd->done = ipr_reset_ioa_job;
8163 add_timer(&ipr_cmd->timer);
8165 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8167 return IPR_RC_JOB_RETURN;
8171 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8172 * @ipr_cmd: ipr command struct
8174 * This function reinitializes some control blocks and
8175 * enables destructive diagnostics on the adapter.
8180 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8182 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8183 volatile u32 int_reg;
8184 volatile u64 maskval;
8188 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8189 ipr_init_ioa_mem(ioa_cfg);
8191 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8192 spin_lock(&ioa_cfg->hrrq[i]._lock);
8193 ioa_cfg->hrrq[i].allow_interrupts = 1;
8194 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8197 if (ioa_cfg->sis64) {
8198 /* Set the adapter to the correct endian mode. */
8199 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8200 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8203 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8205 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8206 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8207 ioa_cfg->regs.clr_interrupt_mask_reg32);
8208 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8209 return IPR_RC_JOB_CONTINUE;
8212 /* Enable destructive diagnostics on IOA */
8213 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8215 if (ioa_cfg->sis64) {
8216 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8217 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8218 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8220 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8222 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8224 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8226 if (ioa_cfg->sis64) {
8227 ipr_cmd->job_step = ipr_reset_next_stage;
8228 return IPR_RC_JOB_CONTINUE;
8231 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8232 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8233 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8234 ipr_cmd->done = ipr_reset_ioa_job;
8235 add_timer(&ipr_cmd->timer);
8236 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8239 return IPR_RC_JOB_RETURN;
8243 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8244 * @ipr_cmd: ipr command struct
8246 * This function is invoked when an adapter dump has run out
8247 * of processing time.
8250 * IPR_RC_JOB_CONTINUE
8252 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8254 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8256 if (ioa_cfg->sdt_state == GET_DUMP)
8257 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8258 else if (ioa_cfg->sdt_state == READ_DUMP)
8259 ioa_cfg->sdt_state = ABORT_DUMP;
8261 ioa_cfg->dump_timeout = 1;
8262 ipr_cmd->job_step = ipr_reset_alert;
8264 return IPR_RC_JOB_CONTINUE;
8268 * ipr_unit_check_no_data - Log a unit check/no data error log
8269 * @ioa_cfg: ioa config struct
8271 * Logs an error indicating the adapter unit checked, but for some
8272 * reason, we were unable to fetch the unit check buffer.
8277 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8279 ioa_cfg->errors_logged++;
8280 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8284 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8285 * @ioa_cfg: ioa config struct
8287 * Fetches the unit check buffer from the adapter by clocking the data
8288 * through the mailbox register.
8293 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8295 unsigned long mailbox;
8296 struct ipr_hostrcb *hostrcb;
8297 struct ipr_uc_sdt sdt;
8301 mailbox = readl(ioa_cfg->ioa_mailbox);
8303 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8304 ipr_unit_check_no_data(ioa_cfg);
8308 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8309 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8310 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8312 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8313 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8314 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8315 ipr_unit_check_no_data(ioa_cfg);
8319 /* Find length of the first sdt entry (UC buffer) */
8320 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8321 length = be32_to_cpu(sdt.entry[0].end_token);
8323 length = (be32_to_cpu(sdt.entry[0].end_token) -
8324 be32_to_cpu(sdt.entry[0].start_token)) &
8325 IPR_FMT2_MBX_ADDR_MASK;
8327 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8328 struct ipr_hostrcb, queue);
8329 list_del(&hostrcb->queue);
8330 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8332 rc = ipr_get_ldump_data_section(ioa_cfg,
8333 be32_to_cpu(sdt.entry[0].start_token),
8334 (__be32 *)&hostrcb->hcam,
8335 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8338 ipr_handle_log_data(ioa_cfg, hostrcb);
8339 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8340 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8341 ioa_cfg->sdt_state == GET_DUMP)
8342 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8344 ipr_unit_check_no_data(ioa_cfg);
8346 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8350 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8351 * @ipr_cmd: ipr command struct
8353 * Description: This function will call to get the unit check buffer.
8358 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8363 ioa_cfg->ioa_unit_checked = 0;
8364 ipr_get_unit_check_buffer(ioa_cfg);
8365 ipr_cmd->job_step = ipr_reset_alert;
8366 ipr_reset_start_timer(ipr_cmd, 0);
8369 return IPR_RC_JOB_RETURN;
8372 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8378 if (ioa_cfg->sdt_state != GET_DUMP)
8379 return IPR_RC_JOB_RETURN;
8381 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8382 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8383 IPR_PCII_MAILBOX_STABLE)) {
8385 if (!ipr_cmd->u.time_left)
8386 dev_err(&ioa_cfg->pdev->dev,
8387 "Timed out waiting for Mailbox register.\n");
8389 ioa_cfg->sdt_state = READ_DUMP;
8390 ioa_cfg->dump_timeout = 0;
8392 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8394 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8395 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8396 schedule_work(&ioa_cfg->work_q);
8399 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8400 ipr_reset_start_timer(ipr_cmd,
8401 IPR_CHECK_FOR_RESET_TIMEOUT);
8405 return IPR_RC_JOB_RETURN;
8409 * ipr_reset_restore_cfg_space - Restore PCI config space.
8410 * @ipr_cmd: ipr command struct
8412 * Description: This function restores the saved PCI config space of
8413 * the adapter, fails all outstanding ops back to the callers, and
8414 * fetches the dump/unit check if applicable to this reset.
8417 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8419 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8421 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8425 ioa_cfg->pdev->state_saved = true;
8426 pci_restore_state(ioa_cfg->pdev);
8428 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8429 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8430 return IPR_RC_JOB_CONTINUE;
8433 ipr_fail_all_ops(ioa_cfg);
8435 if (ioa_cfg->sis64) {
8436 /* Set the adapter to the correct endian mode. */
8437 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8438 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8441 if (ioa_cfg->ioa_unit_checked) {
8442 if (ioa_cfg->sis64) {
8443 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8444 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8445 return IPR_RC_JOB_RETURN;
8447 ioa_cfg->ioa_unit_checked = 0;
8448 ipr_get_unit_check_buffer(ioa_cfg);
8449 ipr_cmd->job_step = ipr_reset_alert;
8450 ipr_reset_start_timer(ipr_cmd, 0);
8451 return IPR_RC_JOB_RETURN;
8455 if (ioa_cfg->in_ioa_bringdown) {
8456 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8457 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8458 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8459 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8461 ipr_cmd->job_step = ipr_reset_enable_ioa;
8465 return IPR_RC_JOB_CONTINUE;
8469 * ipr_reset_bist_done - BIST has completed on the adapter.
8470 * @ipr_cmd: ipr command struct
8472 * Description: Unblock config space and resume the reset process.
8475 * IPR_RC_JOB_CONTINUE
8477 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8479 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8482 if (ioa_cfg->cfg_locked)
8483 pci_cfg_access_unlock(ioa_cfg->pdev);
8484 ioa_cfg->cfg_locked = 0;
8485 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8487 return IPR_RC_JOB_CONTINUE;
8491 * ipr_reset_start_bist - Run BIST on the adapter.
8492 * @ipr_cmd: ipr command struct
8494 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8497 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8499 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8501 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8502 int rc = PCIBIOS_SUCCESSFUL;
8505 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8506 writel(IPR_UPROCI_SIS64_START_BIST,
8507 ioa_cfg->regs.set_uproc_interrupt_reg32);
8509 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8511 if (rc == PCIBIOS_SUCCESSFUL) {
8512 ipr_cmd->job_step = ipr_reset_bist_done;
8513 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8514 rc = IPR_RC_JOB_RETURN;
8516 if (ioa_cfg->cfg_locked)
8517 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8518 ioa_cfg->cfg_locked = 0;
8519 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8520 rc = IPR_RC_JOB_CONTINUE;
8528 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8529 * @ipr_cmd: ipr command struct
8531 * Description: This clears PCI reset to the adapter and delays two seconds.
8536 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8539 ipr_cmd->job_step = ipr_reset_bist_done;
8540 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8542 return IPR_RC_JOB_RETURN;
8546 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8547 * @work: work struct
8549 * Description: This pulses warm reset to a slot.
8552 static void ipr_reset_reset_work(struct work_struct *work)
8554 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8555 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8556 struct pci_dev *pdev = ioa_cfg->pdev;
8557 unsigned long lock_flags = 0;
8560 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8561 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8562 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8565 if (ioa_cfg->reset_cmd == ipr_cmd)
8566 ipr_reset_ioa_job(ipr_cmd);
8567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8572 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8573 * @ipr_cmd: ipr command struct
8575 * Description: This asserts PCI reset to the adapter.
8580 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8582 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8585 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8586 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8587 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8589 return IPR_RC_JOB_RETURN;
8593 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8594 * @ipr_cmd: ipr command struct
8596 * Description: This attempts to block config access to the IOA.
8599 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8601 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8603 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8604 int rc = IPR_RC_JOB_CONTINUE;
8606 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8607 ioa_cfg->cfg_locked = 1;
8608 ipr_cmd->job_step = ioa_cfg->reset;
8610 if (ipr_cmd->u.time_left) {
8611 rc = IPR_RC_JOB_RETURN;
8612 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8613 ipr_reset_start_timer(ipr_cmd,
8614 IPR_CHECK_FOR_RESET_TIMEOUT);
8616 ipr_cmd->job_step = ioa_cfg->reset;
8617 dev_err(&ioa_cfg->pdev->dev,
8618 "Timed out waiting to lock config access. Resetting anyway.\n");
8626 * ipr_reset_block_config_access - Block config access to the IOA
8627 * @ipr_cmd: ipr command struct
8629 * Description: This attempts to block config access to the IOA
8632 * IPR_RC_JOB_CONTINUE
8634 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8636 ipr_cmd->ioa_cfg->cfg_locked = 0;
8637 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8638 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8639 return IPR_RC_JOB_CONTINUE;
8643 * ipr_reset_allowed - Query whether or not IOA can be reset
8644 * @ioa_cfg: ioa config struct
8647 * 0 if reset not allowed / non-zero if reset is allowed
8649 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8651 volatile u32 temp_reg;
8653 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8654 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8658 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8659 * @ipr_cmd: ipr command struct
8661 * Description: This function waits for adapter permission to run BIST,
8662 * then runs BIST. If the adapter does not give permission after a
8663 * reasonable time, we will reset the adapter anyway. The impact of
8664 * resetting the adapter without warning the adapter is the risk of
8665 * losing the persistent error log on the adapter. If the adapter is
8666 * reset while it is writing to the flash on the adapter, the flash
8667 * segment will have bad ECC and be zeroed.
8670 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8672 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8675 int rc = IPR_RC_JOB_RETURN;
8677 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8678 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8679 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8681 ipr_cmd->job_step = ipr_reset_block_config_access;
8682 rc = IPR_RC_JOB_CONTINUE;
8689 * ipr_reset_alert - Alert the adapter of a pending reset
8690 * @ipr_cmd: ipr command struct
8692 * Description: This function alerts the adapter that it will be reset.
8693 * If memory space is not currently enabled, proceed directly
8694 * to running BIST on the adapter. The timer must always be started
8695 * so we guarantee we do not run BIST from ipr_isr.
8700 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8707 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8709 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8710 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8711 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8712 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8714 ipr_cmd->job_step = ipr_reset_block_config_access;
8717 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8718 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8721 return IPR_RC_JOB_RETURN;
8725 * ipr_reset_quiesce_done - Complete IOA disconnect
8726 * @ipr_cmd: ipr command struct
8728 * Description: Freeze the adapter to complete quiesce processing
8731 * IPR_RC_JOB_CONTINUE
8733 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8735 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8738 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8739 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8741 return IPR_RC_JOB_CONTINUE;
8745 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8746 * @ipr_cmd: ipr command struct
8748 * Description: Ensure nothing is outstanding to the IOA and
8749 * proceed with IOA disconnect. Otherwise reset the IOA.
8752 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8754 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8756 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8757 struct ipr_cmnd *loop_cmd;
8758 struct ipr_hrr_queue *hrrq;
8759 int rc = IPR_RC_JOB_CONTINUE;
8763 ipr_cmd->job_step = ipr_reset_quiesce_done;
8765 for_each_hrrq(hrrq, ioa_cfg) {
8766 spin_lock(&hrrq->_lock);
8767 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8769 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8770 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8771 rc = IPR_RC_JOB_RETURN;
8774 spin_unlock(&hrrq->_lock);
8785 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8786 * @ipr_cmd: ipr command struct
8788 * Description: Cancel any oustanding HCAMs to the IOA.
8791 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8793 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8795 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8796 int rc = IPR_RC_JOB_CONTINUE;
8797 struct ipr_cmd_pkt *cmd_pkt;
8798 struct ipr_cmnd *hcam_cmd;
8799 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8802 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8804 if (!hrrq->ioa_is_dead) {
8805 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8806 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8807 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8810 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8811 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8812 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8813 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8814 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8815 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8816 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8817 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8818 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8819 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8820 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8821 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8822 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8823 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8825 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8826 IPR_CANCEL_TIMEOUT);
8828 rc = IPR_RC_JOB_RETURN;
8829 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8834 ipr_cmd->job_step = ipr_reset_alert;
8841 * ipr_reset_ucode_download_done - Microcode download completion
8842 * @ipr_cmd: ipr command struct
8844 * Description: This function unmaps the microcode download buffer.
8847 * IPR_RC_JOB_CONTINUE
8849 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8851 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8852 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8854 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
8855 sglist->num_sg, DMA_TO_DEVICE);
8857 ipr_cmd->job_step = ipr_reset_alert;
8858 return IPR_RC_JOB_CONTINUE;
8862 * ipr_reset_ucode_download - Download microcode to the adapter
8863 * @ipr_cmd: ipr command struct
8865 * Description: This function checks to see if it there is microcode
8866 * to download to the adapter. If there is, a download is performed.
8869 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8871 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8873 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8874 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8877 ipr_cmd->job_step = ipr_reset_alert;
8880 return IPR_RC_JOB_CONTINUE;
8882 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8883 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8884 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8885 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8886 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8887 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8888 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8891 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8893 ipr_build_ucode_ioadl(ipr_cmd, sglist);
8894 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8896 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8897 IPR_WRITE_BUFFER_TIMEOUT);
8900 return IPR_RC_JOB_RETURN;
8904 * ipr_reset_shutdown_ioa - Shutdown the adapter
8905 * @ipr_cmd: ipr command struct
8907 * Description: This function issues an adapter shutdown of the
8908 * specified type to the specified adapter as part of the
8909 * adapter reset job.
8912 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8914 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8916 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8917 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8918 unsigned long timeout;
8919 int rc = IPR_RC_JOB_CONTINUE;
8922 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8923 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8924 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
8925 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
8926 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8927 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8928 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8929 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8931 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8932 timeout = IPR_SHUTDOWN_TIMEOUT;
8933 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8934 timeout = IPR_INTERNAL_TIMEOUT;
8935 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8936 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
8938 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
8940 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8942 rc = IPR_RC_JOB_RETURN;
8943 ipr_cmd->job_step = ipr_reset_ucode_download;
8945 ipr_cmd->job_step = ipr_reset_alert;
8952 * ipr_reset_ioa_job - Adapter reset job
8953 * @ipr_cmd: ipr command struct
8955 * Description: This function is the job router for the adapter reset job.
8960 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8966 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8968 if (ioa_cfg->reset_cmd != ipr_cmd) {
8970 * We are doing nested adapter resets and this is
8971 * not the current reset job.
8973 list_add_tail(&ipr_cmd->queue,
8974 &ipr_cmd->hrrq->hrrq_free_q);
8978 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8979 rc = ipr_cmd->job_step_failed(ipr_cmd);
8980 if (rc == IPR_RC_JOB_RETURN)
8984 ipr_reinit_ipr_cmnd(ipr_cmd);
8985 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8986 rc = ipr_cmd->job_step(ipr_cmd);
8987 } while (rc == IPR_RC_JOB_CONTINUE);
8991 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8992 * @ioa_cfg: ioa config struct
8993 * @job_step: first job step of reset job
8994 * @shutdown_type: shutdown type
8996 * Description: This function will initiate the reset of the given adapter
8997 * starting at the selected job step.
8998 * If the caller needs to wait on the completion of the reset,
8999 * the caller must sleep on the reset_wait_q.
9004 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9005 int (*job_step) (struct ipr_cmnd *),
9006 enum ipr_shutdown_type shutdown_type)
9008 struct ipr_cmnd *ipr_cmd;
9011 ioa_cfg->in_reset_reload = 1;
9012 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9013 spin_lock(&ioa_cfg->hrrq[i]._lock);
9014 ioa_cfg->hrrq[i].allow_cmds = 0;
9015 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9018 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9019 scsi_block_requests(ioa_cfg->host);
9021 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9022 ioa_cfg->reset_cmd = ipr_cmd;
9023 ipr_cmd->job_step = job_step;
9024 ipr_cmd->u.shutdown_type = shutdown_type;
9026 ipr_reset_ioa_job(ipr_cmd);
9030 * ipr_initiate_ioa_reset - Initiate an adapter reset
9031 * @ioa_cfg: ioa config struct
9032 * @shutdown_type: shutdown type
9034 * Description: This function will initiate the reset of the given adapter.
9035 * If the caller needs to wait on the completion of the reset,
9036 * the caller must sleep on the reset_wait_q.
9041 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9042 enum ipr_shutdown_type shutdown_type)
9046 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9049 if (ioa_cfg->in_reset_reload) {
9050 if (ioa_cfg->sdt_state == GET_DUMP)
9051 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9052 else if (ioa_cfg->sdt_state == READ_DUMP)
9053 ioa_cfg->sdt_state = ABORT_DUMP;
9056 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9057 dev_err(&ioa_cfg->pdev->dev,
9058 "IOA taken offline - error recovery failed\n");
9060 ioa_cfg->reset_retries = 0;
9061 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9062 spin_lock(&ioa_cfg->hrrq[i]._lock);
9063 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9064 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9068 if (ioa_cfg->in_ioa_bringdown) {
9069 ioa_cfg->reset_cmd = NULL;
9070 ioa_cfg->in_reset_reload = 0;
9071 ipr_fail_all_ops(ioa_cfg);
9072 wake_up_all(&ioa_cfg->reset_wait_q);
9074 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9075 spin_unlock_irq(ioa_cfg->host->host_lock);
9076 scsi_unblock_requests(ioa_cfg->host);
9077 spin_lock_irq(ioa_cfg->host->host_lock);
9081 ioa_cfg->in_ioa_bringdown = 1;
9082 shutdown_type = IPR_SHUTDOWN_NONE;
9086 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9091 * ipr_reset_freeze - Hold off all I/O activity
9092 * @ipr_cmd: ipr command struct
9094 * Description: If the PCI slot is frozen, hold off all I/O
9095 * activity; then, as soon as the slot is available again,
9096 * initiate an adapter reset.
9098 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9100 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9103 /* Disallow new interrupts, avoid loop */
9104 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9105 spin_lock(&ioa_cfg->hrrq[i]._lock);
9106 ioa_cfg->hrrq[i].allow_interrupts = 0;
9107 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9110 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9111 ipr_cmd->done = ipr_reset_ioa_job;
9112 return IPR_RC_JOB_RETURN;
9116 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9117 * @pdev: PCI device struct
9119 * Description: This routine is called to tell us that the MMIO
9120 * access to the IOA has been restored
9122 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9124 unsigned long flags = 0;
9125 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9127 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9128 if (!ioa_cfg->probe_done)
9129 pci_save_state(pdev);
9130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9131 return PCI_ERS_RESULT_NEED_RESET;
9135 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9136 * @pdev: PCI device struct
9138 * Description: This routine is called to tell us that the PCI bus
9139 * is down. Can't do anything here, except put the device driver
9140 * into a holding pattern, waiting for the PCI bus to come back.
9142 static void ipr_pci_frozen(struct pci_dev *pdev)
9144 unsigned long flags = 0;
9145 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9147 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9148 if (ioa_cfg->probe_done)
9149 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9150 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9154 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9155 * @pdev: PCI device struct
9157 * Description: This routine is called by the pci error recovery
9158 * code after the PCI slot has been reset, just before we
9159 * should resume normal operations.
9161 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9163 unsigned long flags = 0;
9164 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9166 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9167 if (ioa_cfg->probe_done) {
9168 if (ioa_cfg->needs_warm_reset)
9169 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9171 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9174 wake_up_all(&ioa_cfg->eeh_wait_q);
9175 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9176 return PCI_ERS_RESULT_RECOVERED;
9180 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9181 * @pdev: PCI device struct
9183 * Description: This routine is called when the PCI bus has
9184 * permanently failed.
9186 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9188 unsigned long flags = 0;
9189 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9192 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9193 if (ioa_cfg->probe_done) {
9194 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9195 ioa_cfg->sdt_state = ABORT_DUMP;
9196 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9197 ioa_cfg->in_ioa_bringdown = 1;
9198 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9199 spin_lock(&ioa_cfg->hrrq[i]._lock);
9200 ioa_cfg->hrrq[i].allow_cmds = 0;
9201 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9204 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9206 wake_up_all(&ioa_cfg->eeh_wait_q);
9207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9211 * ipr_pci_error_detected - Called when a PCI error is detected.
9212 * @pdev: PCI device struct
9213 * @state: PCI channel state
9215 * Description: Called when a PCI error is detected.
9218 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9220 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9221 pci_channel_state_t state)
9224 case pci_channel_io_frozen:
9225 ipr_pci_frozen(pdev);
9226 return PCI_ERS_RESULT_CAN_RECOVER;
9227 case pci_channel_io_perm_failure:
9228 ipr_pci_perm_failure(pdev);
9229 return PCI_ERS_RESULT_DISCONNECT;
9234 return PCI_ERS_RESULT_NEED_RESET;
9238 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9239 * @ioa_cfg: ioa cfg struct
9241 * Description: This is the second phase of adapter intialization
9242 * This function takes care of initilizing the adapter to the point
9243 * where it can accept new commands.
9246 * 0 on success / -EIO on failure
9248 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9251 unsigned long host_lock_flags = 0;
9254 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9255 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9256 ioa_cfg->probe_done = 1;
9257 if (ioa_cfg->needs_hard_reset) {
9258 ioa_cfg->needs_hard_reset = 0;
9259 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9261 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9263 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9270 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9271 * @ioa_cfg: ioa config struct
9276 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9280 if (ioa_cfg->ipr_cmnd_list) {
9281 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9282 if (ioa_cfg->ipr_cmnd_list[i])
9283 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9284 ioa_cfg->ipr_cmnd_list[i],
9285 ioa_cfg->ipr_cmnd_list_dma[i]);
9287 ioa_cfg->ipr_cmnd_list[i] = NULL;
9291 if (ioa_cfg->ipr_cmd_pool)
9292 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9294 kfree(ioa_cfg->ipr_cmnd_list);
9295 kfree(ioa_cfg->ipr_cmnd_list_dma);
9296 ioa_cfg->ipr_cmnd_list = NULL;
9297 ioa_cfg->ipr_cmnd_list_dma = NULL;
9298 ioa_cfg->ipr_cmd_pool = NULL;
9302 * ipr_free_mem - Frees memory allocated for an adapter
9303 * @ioa_cfg: ioa cfg struct
9308 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9312 kfree(ioa_cfg->res_entries);
9313 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9314 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9315 ipr_free_cmd_blks(ioa_cfg);
9317 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9318 dma_free_coherent(&ioa_cfg->pdev->dev,
9319 sizeof(u32) * ioa_cfg->hrrq[i].size,
9320 ioa_cfg->hrrq[i].host_rrq,
9321 ioa_cfg->hrrq[i].host_rrq_dma);
9323 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9324 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9326 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9327 dma_free_coherent(&ioa_cfg->pdev->dev,
9328 sizeof(struct ipr_hostrcb),
9329 ioa_cfg->hostrcb[i],
9330 ioa_cfg->hostrcb_dma[i]);
9333 ipr_free_dump(ioa_cfg);
9334 kfree(ioa_cfg->trace);
9338 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9339 * @ioa_cfg: ipr cfg struct
9341 * This function frees all allocated IRQs for the
9342 * specified adapter.
9347 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9349 struct pci_dev *pdev = ioa_cfg->pdev;
9351 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9352 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9354 for (i = 0; i < ioa_cfg->nvectors; i++)
9355 free_irq(ioa_cfg->vectors_info[i].vec,
9358 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9360 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9361 pci_disable_msi(pdev);
9362 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9363 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9364 pci_disable_msix(pdev);
9365 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9370 * ipr_free_all_resources - Free all allocated resources for an adapter.
9371 * @ipr_cmd: ipr command struct
9373 * This function frees all allocated resources for the
9374 * specified adapter.
9379 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9381 struct pci_dev *pdev = ioa_cfg->pdev;
9384 ipr_free_irqs(ioa_cfg);
9385 if (ioa_cfg->reset_work_q)
9386 destroy_workqueue(ioa_cfg->reset_work_q);
9387 iounmap(ioa_cfg->hdw_dma_regs);
9388 pci_release_regions(pdev);
9389 ipr_free_mem(ioa_cfg);
9390 scsi_host_put(ioa_cfg->host);
9391 pci_disable_device(pdev);
9396 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9397 * @ioa_cfg: ioa config struct
9400 * 0 on success / -ENOMEM on allocation failure
9402 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9404 struct ipr_cmnd *ipr_cmd;
9405 struct ipr_ioarcb *ioarcb;
9406 dma_addr_t dma_addr;
9407 int i, entries_each_hrrq, hrrq_id = 0;
9409 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9410 sizeof(struct ipr_cmnd), 512, 0);
9412 if (!ioa_cfg->ipr_cmd_pool)
9415 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9416 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9418 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9419 ipr_free_cmd_blks(ioa_cfg);
9423 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9424 if (ioa_cfg->hrrq_num > 1) {
9426 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9427 ioa_cfg->hrrq[i].min_cmd_id = 0;
9428 ioa_cfg->hrrq[i].max_cmd_id =
9429 (entries_each_hrrq - 1);
9432 IPR_NUM_BASE_CMD_BLKS/
9433 (ioa_cfg->hrrq_num - 1);
9434 ioa_cfg->hrrq[i].min_cmd_id =
9435 IPR_NUM_INTERNAL_CMD_BLKS +
9436 (i - 1) * entries_each_hrrq;
9437 ioa_cfg->hrrq[i].max_cmd_id =
9438 (IPR_NUM_INTERNAL_CMD_BLKS +
9439 i * entries_each_hrrq - 1);
9442 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9443 ioa_cfg->hrrq[i].min_cmd_id = 0;
9444 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9446 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9449 BUG_ON(ioa_cfg->hrrq_num == 0);
9451 i = IPR_NUM_CMD_BLKS -
9452 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9454 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9455 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9458 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9459 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9462 ipr_free_cmd_blks(ioa_cfg);
9466 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9467 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9468 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9470 ioarcb = &ipr_cmd->ioarcb;
9471 ipr_cmd->dma_addr = dma_addr;
9473 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9475 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9477 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9478 if (ioa_cfg->sis64) {
9479 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9480 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9481 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9482 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9484 ioarcb->write_ioadl_addr =
9485 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9486 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9487 ioarcb->ioasa_host_pci_addr =
9488 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9490 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9491 ipr_cmd->cmd_index = i;
9492 ipr_cmd->ioa_cfg = ioa_cfg;
9493 ipr_cmd->sense_buffer_dma = dma_addr +
9494 offsetof(struct ipr_cmnd, sense_buffer);
9496 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9497 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9498 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9499 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9507 * ipr_alloc_mem - Allocate memory for an adapter
9508 * @ioa_cfg: ioa config struct
9511 * 0 on success / non-zero for error
9513 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9515 struct pci_dev *pdev = ioa_cfg->pdev;
9516 int i, rc = -ENOMEM;
9519 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9520 ioa_cfg->max_devs_supported, GFP_KERNEL);
9522 if (!ioa_cfg->res_entries)
9525 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9526 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9527 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9530 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9531 sizeof(struct ipr_misc_cbs),
9532 &ioa_cfg->vpd_cbs_dma,
9535 if (!ioa_cfg->vpd_cbs)
9536 goto out_free_res_entries;
9538 if (ipr_alloc_cmd_blks(ioa_cfg))
9539 goto out_free_vpd_cbs;
9541 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9542 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9543 sizeof(u32) * ioa_cfg->hrrq[i].size,
9544 &ioa_cfg->hrrq[i].host_rrq_dma,
9547 if (!ioa_cfg->hrrq[i].host_rrq) {
9549 dma_free_coherent(&pdev->dev,
9550 sizeof(u32) * ioa_cfg->hrrq[i].size,
9551 ioa_cfg->hrrq[i].host_rrq,
9552 ioa_cfg->hrrq[i].host_rrq_dma);
9553 goto out_ipr_free_cmd_blocks;
9555 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9558 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9559 ioa_cfg->cfg_table_size,
9560 &ioa_cfg->cfg_table_dma,
9563 if (!ioa_cfg->u.cfg_table)
9564 goto out_free_host_rrq;
9566 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9567 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9568 sizeof(struct ipr_hostrcb),
9569 &ioa_cfg->hostrcb_dma[i],
9572 if (!ioa_cfg->hostrcb[i])
9573 goto out_free_hostrcb_dma;
9575 ioa_cfg->hostrcb[i]->hostrcb_dma =
9576 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9577 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9578 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9581 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9582 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9584 if (!ioa_cfg->trace)
9585 goto out_free_hostrcb_dma;
9592 out_free_hostrcb_dma:
9594 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9595 ioa_cfg->hostrcb[i],
9596 ioa_cfg->hostrcb_dma[i]);
9598 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9599 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9601 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9602 dma_free_coherent(&pdev->dev,
9603 sizeof(u32) * ioa_cfg->hrrq[i].size,
9604 ioa_cfg->hrrq[i].host_rrq,
9605 ioa_cfg->hrrq[i].host_rrq_dma);
9607 out_ipr_free_cmd_blocks:
9608 ipr_free_cmd_blks(ioa_cfg);
9610 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9611 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9612 out_free_res_entries:
9613 kfree(ioa_cfg->res_entries);
9618 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9619 * @ioa_cfg: ioa config struct
9624 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9628 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9629 ioa_cfg->bus_attr[i].bus = i;
9630 ioa_cfg->bus_attr[i].qas_enabled = 0;
9631 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9632 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9633 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9635 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9640 * ipr_init_regs - Initialize IOA registers
9641 * @ioa_cfg: ioa config struct
9646 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9648 const struct ipr_interrupt_offsets *p;
9649 struct ipr_interrupts *t;
9652 p = &ioa_cfg->chip_cfg->regs;
9654 base = ioa_cfg->hdw_dma_regs;
9656 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9657 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9658 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9659 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9660 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9661 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9662 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9663 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9664 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9665 t->ioarrin_reg = base + p->ioarrin_reg;
9666 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9667 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9668 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9669 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9670 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9671 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9673 if (ioa_cfg->sis64) {
9674 t->init_feedback_reg = base + p->init_feedback_reg;
9675 t->dump_addr_reg = base + p->dump_addr_reg;
9676 t->dump_data_reg = base + p->dump_data_reg;
9677 t->endian_swap_reg = base + p->endian_swap_reg;
9682 * ipr_init_ioa_cfg - Initialize IOA config struct
9683 * @ioa_cfg: ioa config struct
9684 * @host: scsi host struct
9685 * @pdev: PCI dev struct
9690 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9691 struct Scsi_Host *host, struct pci_dev *pdev)
9695 ioa_cfg->host = host;
9696 ioa_cfg->pdev = pdev;
9697 ioa_cfg->log_level = ipr_log_level;
9698 ioa_cfg->doorbell = IPR_DOORBELL;
9699 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9700 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9701 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9702 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9703 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9704 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9706 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9707 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9708 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9709 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9710 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9711 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9712 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9713 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9714 ioa_cfg->sdt_state = INACTIVE;
9716 ipr_initialize_bus_attr(ioa_cfg);
9717 ioa_cfg->max_devs_supported = ipr_max_devs;
9719 if (ioa_cfg->sis64) {
9720 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9721 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9722 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9723 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9724 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9725 + ((sizeof(struct ipr_config_table_entry64)
9726 * ioa_cfg->max_devs_supported)));
9728 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9729 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9730 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9731 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9732 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9733 + ((sizeof(struct ipr_config_table_entry)
9734 * ioa_cfg->max_devs_supported)));
9737 host->max_channel = IPR_VSET_BUS;
9738 host->unique_id = host->host_no;
9739 host->max_cmd_len = IPR_MAX_CDB_LEN;
9740 host->can_queue = ioa_cfg->max_cmds;
9741 pci_set_drvdata(pdev, ioa_cfg);
9743 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9744 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9745 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9746 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9748 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9750 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9755 * ipr_get_chip_info - Find adapter chip information
9756 * @dev_id: PCI device id struct
9759 * ptr to chip information on success / NULL on failure
9761 static const struct ipr_chip_t *
9762 ipr_get_chip_info(const struct pci_device_id *dev_id)
9766 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9767 if (ipr_chip[i].vendor == dev_id->vendor &&
9768 ipr_chip[i].device == dev_id->device)
9769 return &ipr_chip[i];
9774 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9776 * @ioa_cfg: ioa config struct
9781 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9783 struct pci_dev *pdev = ioa_cfg->pdev;
9785 if (pci_channel_offline(pdev)) {
9786 wait_event_timeout(ioa_cfg->eeh_wait_q,
9787 !pci_channel_offline(pdev),
9788 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9789 pci_restore_state(pdev);
9793 static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9795 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9798 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9799 entries[i].entry = i;
9801 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9802 entries, 1, ipr_number_of_msix);
9804 ipr_wait_for_pci_err_recovery(ioa_cfg);
9808 for (i = 0; i < vectors; i++)
9809 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9810 ioa_cfg->nvectors = vectors;
9815 static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9819 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9821 ipr_wait_for_pci_err_recovery(ioa_cfg);
9825 for (i = 0; i < vectors; i++)
9826 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9827 ioa_cfg->nvectors = vectors;
9832 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9834 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9836 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9837 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9838 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9839 ioa_cfg->vectors_info[vec_idx].
9840 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9844 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9848 for (i = 1; i < ioa_cfg->nvectors; i++) {
9849 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9852 ioa_cfg->vectors_info[i].desc,
9856 free_irq(ioa_cfg->vectors_info[i].vec,
9865 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9866 * @pdev: PCI device struct
9868 * Description: Simply set the msi_received flag to 1 indicating that
9869 * Message Signaled Interrupts are supported.
9872 * 0 on success / non-zero on failure
9874 static irqreturn_t ipr_test_intr(int irq, void *devp)
9876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9877 unsigned long lock_flags = 0;
9878 irqreturn_t rc = IRQ_HANDLED;
9880 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
9881 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9883 ioa_cfg->msi_received = 1;
9884 wake_up(&ioa_cfg->msi_wait_q);
9886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9891 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9892 * @pdev: PCI device struct
9894 * Description: The return value from pci_enable_msi_range() can not always be
9895 * trusted. This routine sets up and initiates a test interrupt to determine
9896 * if the interrupt is received via the ipr_test_intr() service routine.
9897 * If the tests fails, the driver will fall back to LSI.
9900 * 0 on success / non-zero on failure
9902 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
9905 volatile u32 int_reg;
9906 unsigned long lock_flags = 0;
9910 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9911 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9912 ioa_cfg->msi_received = 0;
9913 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9914 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
9915 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9916 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9918 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9919 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9921 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9923 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9925 } else if (ipr_debug)
9926 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9928 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
9929 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9930 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
9931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9932 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9934 if (!ioa_cfg->msi_received) {
9935 /* MSI test failed */
9936 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9938 } else if (ipr_debug)
9939 dev_info(&pdev->dev, "MSI test succeeded.\n");
9941 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9943 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9944 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9946 free_irq(pdev->irq, ioa_cfg);
9953 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
9954 * @pdev: PCI device struct
9955 * @dev_id: PCI device id struct
9958 * 0 on success / non-zero on failure
9960 static int ipr_probe_ioa(struct pci_dev *pdev,
9961 const struct pci_device_id *dev_id)
9963 struct ipr_ioa_cfg *ioa_cfg;
9964 struct Scsi_Host *host;
9965 unsigned long ipr_regs_pci;
9966 void __iomem *ipr_regs;
9967 int rc = PCIBIOS_SUCCESSFUL;
9968 volatile u32 mask, uproc, interrupts;
9969 unsigned long lock_flags, driver_lock_flags;
9973 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
9974 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9977 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9982 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9983 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
9984 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
9986 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
9988 if (!ioa_cfg->ipr_chip) {
9989 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9990 dev_id->vendor, dev_id->device);
9991 goto out_scsi_host_put;
9994 /* set SIS 32 or SIS 64 */
9995 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
9996 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
9997 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
9998 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10000 if (ipr_transop_timeout)
10001 ioa_cfg->transop_timeout = ipr_transop_timeout;
10002 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10003 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10005 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10007 ioa_cfg->revid = pdev->revision;
10009 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10011 ipr_regs_pci = pci_resource_start(pdev, 0);
10013 rc = pci_request_regions(pdev, IPR_NAME);
10015 dev_err(&pdev->dev,
10016 "Couldn't register memory range of registers\n");
10017 goto out_scsi_host_put;
10020 rc = pci_enable_device(pdev);
10022 if (rc || pci_channel_offline(pdev)) {
10023 if (pci_channel_offline(pdev)) {
10024 ipr_wait_for_pci_err_recovery(ioa_cfg);
10025 rc = pci_enable_device(pdev);
10029 dev_err(&pdev->dev, "Cannot enable adapter\n");
10030 ipr_wait_for_pci_err_recovery(ioa_cfg);
10031 goto out_release_regions;
10035 ipr_regs = pci_ioremap_bar(pdev, 0);
10038 dev_err(&pdev->dev,
10039 "Couldn't map memory range of registers\n");
10044 ioa_cfg->hdw_dma_regs = ipr_regs;
10045 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10046 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10048 ipr_init_regs(ioa_cfg);
10050 if (ioa_cfg->sis64) {
10051 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10053 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10054 rc = dma_set_mask_and_coherent(&pdev->dev,
10058 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10061 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10062 goto cleanup_nomem;
10065 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10066 ioa_cfg->chip_cfg->cache_line_size);
10068 if (rc != PCIBIOS_SUCCESSFUL) {
10069 dev_err(&pdev->dev, "Write of cache line size failed\n");
10070 ipr_wait_for_pci_err_recovery(ioa_cfg);
10072 goto cleanup_nomem;
10075 /* Issue MMIO read to ensure card is not in EEH */
10076 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10077 ipr_wait_for_pci_err_recovery(ioa_cfg);
10079 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10080 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10081 IPR_MAX_MSIX_VECTORS);
10082 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10085 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10086 ipr_enable_msix(ioa_cfg) == 0)
10087 ioa_cfg->intr_flag = IPR_USE_MSIX;
10088 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10089 ipr_enable_msi(ioa_cfg) == 0)
10090 ioa_cfg->intr_flag = IPR_USE_MSI;
10092 ioa_cfg->intr_flag = IPR_USE_LSI;
10093 ioa_cfg->nvectors = 1;
10094 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10097 pci_set_master(pdev);
10099 if (pci_channel_offline(pdev)) {
10100 ipr_wait_for_pci_err_recovery(ioa_cfg);
10101 pci_set_master(pdev);
10102 if (pci_channel_offline(pdev)) {
10104 goto out_msi_disable;
10108 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10109 ioa_cfg->intr_flag == IPR_USE_MSIX) {
10110 rc = ipr_test_msi(ioa_cfg, pdev);
10111 if (rc == -EOPNOTSUPP) {
10112 ipr_wait_for_pci_err_recovery(ioa_cfg);
10113 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10114 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10115 pci_disable_msi(pdev);
10116 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10117 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10118 pci_disable_msix(pdev);
10121 ioa_cfg->intr_flag = IPR_USE_LSI;
10122 ioa_cfg->nvectors = 1;
10125 goto out_msi_disable;
10127 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10128 dev_info(&pdev->dev,
10129 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10130 ioa_cfg->nvectors, pdev->irq);
10131 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10132 dev_info(&pdev->dev,
10133 "Request for %d MSIXs succeeded.",
10134 ioa_cfg->nvectors);
10138 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10139 (unsigned int)num_online_cpus(),
10140 (unsigned int)IPR_MAX_HRRQ_NUM);
10142 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10143 goto out_msi_disable;
10145 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10146 goto out_msi_disable;
10148 rc = ipr_alloc_mem(ioa_cfg);
10150 dev_err(&pdev->dev,
10151 "Couldn't allocate enough memory for device driver!\n");
10152 goto out_msi_disable;
10155 /* Save away PCI config space for use following IOA reset */
10156 rc = pci_save_state(pdev);
10158 if (rc != PCIBIOS_SUCCESSFUL) {
10159 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10161 goto cleanup_nolog;
10165 * If HRRQ updated interrupt is not masked, or reset alert is set,
10166 * the card is in an unknown state and needs a hard reset
10168 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10169 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10170 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10171 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10172 ioa_cfg->needs_hard_reset = 1;
10173 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10174 ioa_cfg->needs_hard_reset = 1;
10175 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10176 ioa_cfg->ioa_unit_checked = 1;
10178 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10179 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10182 if (ioa_cfg->intr_flag == IPR_USE_MSI
10183 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10184 name_msi_vectors(ioa_cfg);
10185 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10187 ioa_cfg->vectors_info[0].desc,
10188 &ioa_cfg->hrrq[0]);
10190 rc = ipr_request_other_msi_irqs(ioa_cfg);
10192 rc = request_irq(pdev->irq, ipr_isr,
10194 IPR_NAME, &ioa_cfg->hrrq[0]);
10197 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10199 goto cleanup_nolog;
10202 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10203 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10204 ioa_cfg->needs_warm_reset = 1;
10205 ioa_cfg->reset = ipr_reset_slot_reset;
10207 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10208 WQ_MEM_RECLAIM, host->host_no);
10210 if (!ioa_cfg->reset_work_q) {
10211 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10215 ioa_cfg->reset = ipr_reset_start_bist;
10217 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10218 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10219 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10226 ipr_free_irqs(ioa_cfg);
10228 ipr_free_mem(ioa_cfg);
10230 ipr_wait_for_pci_err_recovery(ioa_cfg);
10231 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10232 pci_disable_msi(pdev);
10233 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10234 pci_disable_msix(pdev);
10238 pci_disable_device(pdev);
10239 out_release_regions:
10240 pci_release_regions(pdev);
10242 scsi_host_put(host);
10247 * ipr_initiate_ioa_bringdown - Bring down an adapter
10248 * @ioa_cfg: ioa config struct
10249 * @shutdown_type: shutdown type
10251 * Description: This function will initiate bringing down the adapter.
10252 * This consists of issuing an IOA shutdown to the adapter
10253 * to flush the cache, and running BIST.
10254 * If the caller needs to wait on the completion of the reset,
10255 * the caller must sleep on the reset_wait_q.
10260 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10261 enum ipr_shutdown_type shutdown_type)
10264 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10265 ioa_cfg->sdt_state = ABORT_DUMP;
10266 ioa_cfg->reset_retries = 0;
10267 ioa_cfg->in_ioa_bringdown = 1;
10268 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10273 * __ipr_remove - Remove a single adapter
10274 * @pdev: pci device struct
10276 * Adapter hot plug remove entry point.
10281 static void __ipr_remove(struct pci_dev *pdev)
10283 unsigned long host_lock_flags = 0;
10284 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10286 unsigned long driver_lock_flags;
10289 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10290 while (ioa_cfg->in_reset_reload) {
10291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10292 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10293 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10296 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10297 spin_lock(&ioa_cfg->hrrq[i]._lock);
10298 ioa_cfg->hrrq[i].removing_ioa = 1;
10299 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10302 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10305 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10306 flush_work(&ioa_cfg->work_q);
10307 if (ioa_cfg->reset_work_q)
10308 flush_workqueue(ioa_cfg->reset_work_q);
10309 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10310 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10312 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10313 list_del(&ioa_cfg->queue);
10314 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10316 if (ioa_cfg->sdt_state == ABORT_DUMP)
10317 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10318 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10320 ipr_free_all_resources(ioa_cfg);
10326 * ipr_remove - IOA hot plug remove entry point
10327 * @pdev: pci device struct
10329 * Adapter hot plug remove entry point.
10334 static void ipr_remove(struct pci_dev *pdev)
10336 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10340 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10342 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10344 scsi_remove_host(ioa_cfg->host);
10346 __ipr_remove(pdev);
10352 * ipr_probe - Adapter hot plug add entry point
10355 * 0 on success / non-zero on failure
10357 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10359 struct ipr_ioa_cfg *ioa_cfg;
10362 rc = ipr_probe_ioa(pdev, dev_id);
10367 ioa_cfg = pci_get_drvdata(pdev);
10368 rc = ipr_probe_ioa_part2(ioa_cfg);
10371 __ipr_remove(pdev);
10375 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10378 __ipr_remove(pdev);
10382 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10386 scsi_remove_host(ioa_cfg->host);
10387 __ipr_remove(pdev);
10391 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10395 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10397 scsi_remove_host(ioa_cfg->host);
10398 __ipr_remove(pdev);
10402 scsi_scan_host(ioa_cfg->host);
10403 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10405 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10406 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10407 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10408 ioa_cfg->iopoll_weight, ipr_iopoll);
10409 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10413 schedule_work(&ioa_cfg->work_q);
10418 * ipr_shutdown - Shutdown handler.
10419 * @pdev: pci device struct
10421 * This function is invoked upon system shutdown/reboot. It will issue
10422 * an adapter shutdown to the adapter to flush the write cache.
10427 static void ipr_shutdown(struct pci_dev *pdev)
10429 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10430 unsigned long lock_flags = 0;
10431 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10434 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10435 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10436 ioa_cfg->iopoll_weight = 0;
10437 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10438 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10441 while (ioa_cfg->in_reset_reload) {
10442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10443 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10444 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10447 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10448 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10450 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10452 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10453 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10454 ipr_free_irqs(ioa_cfg);
10455 pci_disable_device(ioa_cfg->pdev);
10459 static struct pci_device_id ipr_pci_table[] = {
10460 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10461 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10462 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10463 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10464 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10465 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10466 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10467 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10468 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10469 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10470 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10471 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10472 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10473 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10474 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10475 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10476 IPR_USE_LONG_TRANSOP_TIMEOUT },
10477 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10478 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10479 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10480 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 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_575C, 0, 0,
10484 IPR_USE_LONG_TRANSOP_TIMEOUT },
10485 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10486 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10487 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10488 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 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_575C, 0, 0,
10492 IPR_USE_LONG_TRANSOP_TIMEOUT },
10493 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10494 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10495 IPR_USE_LONG_TRANSOP_TIMEOUT },
10496 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10497 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10498 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10499 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10500 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10501 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10502 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10503 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10504 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10505 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10506 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10507 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10508 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10509 IPR_USE_LONG_TRANSOP_TIMEOUT },
10510 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10511 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10512 IPR_USE_LONG_TRANSOP_TIMEOUT },
10513 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10514 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10515 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10516 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10517 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10518 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10519 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10520 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10521 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10522 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10523 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10524 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10525 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10526 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10527 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10528 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10529 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10530 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10531 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10532 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10533 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10534 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10535 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10536 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10537 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10538 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10539 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10540 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10541 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10542 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10543 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10544 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10545 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10546 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10547 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10548 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10549 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10550 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10551 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10552 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10553 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10554 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10555 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10556 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10557 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10558 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10559 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10560 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10561 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10562 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10563 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10564 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10567 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10569 static const struct pci_error_handlers ipr_err_handler = {
10570 .error_detected = ipr_pci_error_detected,
10571 .mmio_enabled = ipr_pci_mmio_enabled,
10572 .slot_reset = ipr_pci_slot_reset,
10575 static struct pci_driver ipr_driver = {
10577 .id_table = ipr_pci_table,
10578 .probe = ipr_probe,
10579 .remove = ipr_remove,
10580 .shutdown = ipr_shutdown,
10581 .err_handler = &ipr_err_handler,
10585 * ipr_halt_done - Shutdown prepare completion
10590 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10592 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10596 * ipr_halt - Issue shutdown prepare to all adapters
10599 * NOTIFY_OK on success / NOTIFY_DONE on failure
10601 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10603 struct ipr_cmnd *ipr_cmd;
10604 struct ipr_ioa_cfg *ioa_cfg;
10605 unsigned long flags = 0, driver_lock_flags;
10607 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10608 return NOTIFY_DONE;
10610 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10612 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10613 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10614 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10615 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10616 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10620 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10621 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10622 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10623 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10624 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10626 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10629 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10634 static struct notifier_block ipr_notifier = {
10639 * ipr_init - Module entry point
10642 * 0 on success / negative value on failure
10644 static int __init ipr_init(void)
10646 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10647 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10649 register_reboot_notifier(&ipr_notifier);
10650 return pci_register_driver(&ipr_driver);
10654 * ipr_exit - Module unload
10656 * Module unload entry point.
10661 static void __exit ipr_exit(void)
10663 unregister_reboot_notifier(&ipr_notifier);
10664 pci_unregister_driver(&ipr_driver);
10667 module_init(ipr_init);
10668 module_exit(ipr_exit);