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 len, result, dnld_size;
4008 if (!capable(CAP_SYS_ADMIN))
4011 len = snprintf(fname, 99, "%s", buf);
4012 fname[len-1] = '\0';
4014 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4015 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4019 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4021 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4022 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4023 sglist = ipr_alloc_ucode_buffer(dnld_size);
4026 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4027 release_firmware(fw_entry);
4031 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4034 dev_err(&ioa_cfg->pdev->dev,
4035 "Microcode buffer copy to DMA buffer failed\n");
4039 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4041 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4046 ipr_free_ucode_buffer(sglist);
4047 release_firmware(fw_entry);
4051 static struct device_attribute ipr_update_fw_attr = {
4053 .name = "update_fw",
4056 .store = ipr_store_update_fw
4060 * ipr_show_fw_type - Show the adapter's firmware type.
4061 * @dev: class device struct
4065 * number of bytes printed to buffer
4067 static ssize_t ipr_show_fw_type(struct device *dev,
4068 struct device_attribute *attr, char *buf)
4070 struct Scsi_Host *shost = class_to_shost(dev);
4071 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4072 unsigned long lock_flags = 0;
4075 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4076 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4081 static struct device_attribute ipr_ioa_fw_type_attr = {
4086 .show = ipr_show_fw_type
4089 static struct device_attribute *ipr_ioa_attrs[] = {
4090 &ipr_fw_version_attr,
4091 &ipr_log_level_attr,
4092 &ipr_diagnostics_attr,
4093 &ipr_ioa_state_attr,
4094 &ipr_ioa_reset_attr,
4095 &ipr_update_fw_attr,
4096 &ipr_ioa_fw_type_attr,
4097 &ipr_iopoll_weight_attr,
4101 #ifdef CONFIG_SCSI_IPR_DUMP
4103 * ipr_read_dump - Dump the adapter
4104 * @filp: open sysfs file
4105 * @kobj: kobject struct
4106 * @bin_attr: bin_attribute struct
4109 * @count: buffer size
4112 * number of bytes printed to buffer
4114 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4115 struct bin_attribute *bin_attr,
4116 char *buf, loff_t off, size_t count)
4118 struct device *cdev = container_of(kobj, struct device, kobj);
4119 struct Scsi_Host *shost = class_to_shost(cdev);
4120 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4121 struct ipr_dump *dump;
4122 unsigned long lock_flags = 0;
4127 if (!capable(CAP_SYS_ADMIN))
4130 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4131 dump = ioa_cfg->dump;
4133 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4137 kref_get(&dump->kref);
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4140 if (off > dump->driver_dump.hdr.len) {
4141 kref_put(&dump->kref, ipr_release_dump);
4145 if (off + count > dump->driver_dump.hdr.len) {
4146 count = dump->driver_dump.hdr.len - off;
4150 if (count && off < sizeof(dump->driver_dump)) {
4151 if (off + count > sizeof(dump->driver_dump))
4152 len = sizeof(dump->driver_dump) - off;
4155 src = (u8 *)&dump->driver_dump + off;
4156 memcpy(buf, src, len);
4162 off -= sizeof(dump->driver_dump);
4165 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4166 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4167 sizeof(struct ipr_sdt_entry));
4169 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4170 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4172 if (count && off < sdt_end) {
4173 if (off + count > sdt_end)
4174 len = sdt_end - off;
4177 src = (u8 *)&dump->ioa_dump + off;
4178 memcpy(buf, src, len);
4187 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4188 len = PAGE_ALIGN(off) - off;
4191 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4192 src += off & ~PAGE_MASK;
4193 memcpy(buf, src, len);
4199 kref_put(&dump->kref, ipr_release_dump);
4204 * ipr_alloc_dump - Prepare for adapter dump
4205 * @ioa_cfg: ioa config struct
4208 * 0 on success / other on failure
4210 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4212 struct ipr_dump *dump;
4214 unsigned long lock_flags = 0;
4216 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4219 ipr_err("Dump memory allocation failed\n");
4224 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4226 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4229 ipr_err("Dump memory allocation failed\n");
4234 dump->ioa_dump.ioa_data = ioa_data;
4236 kref_init(&dump->kref);
4237 dump->ioa_cfg = ioa_cfg;
4239 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4241 if (INACTIVE != ioa_cfg->sdt_state) {
4242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4243 vfree(dump->ioa_dump.ioa_data);
4248 ioa_cfg->dump = dump;
4249 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4250 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4251 ioa_cfg->dump_taken = 1;
4252 schedule_work(&ioa_cfg->work_q);
4254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4260 * ipr_free_dump - Free adapter dump memory
4261 * @ioa_cfg: ioa config struct
4264 * 0 on success / other on failure
4266 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4268 struct ipr_dump *dump;
4269 unsigned long lock_flags = 0;
4273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4274 dump = ioa_cfg->dump;
4276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280 ioa_cfg->dump = NULL;
4281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4283 kref_put(&dump->kref, ipr_release_dump);
4290 * ipr_write_dump - Setup dump state of adapter
4291 * @filp: open sysfs file
4292 * @kobj: kobject struct
4293 * @bin_attr: bin_attribute struct
4296 * @count: buffer size
4299 * number of bytes printed to buffer
4301 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4302 struct bin_attribute *bin_attr,
4303 char *buf, loff_t off, size_t count)
4305 struct device *cdev = container_of(kobj, struct device, kobj);
4306 struct Scsi_Host *shost = class_to_shost(cdev);
4307 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4310 if (!capable(CAP_SYS_ADMIN))
4314 rc = ipr_alloc_dump(ioa_cfg);
4315 else if (buf[0] == '0')
4316 rc = ipr_free_dump(ioa_cfg);
4326 static struct bin_attribute ipr_dump_attr = {
4329 .mode = S_IRUSR | S_IWUSR,
4332 .read = ipr_read_dump,
4333 .write = ipr_write_dump
4336 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4340 * ipr_change_queue_depth - Change the device's queue depth
4341 * @sdev: scsi device struct
4342 * @qdepth: depth to set
4343 * @reason: calling context
4348 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4350 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4351 struct ipr_resource_entry *res;
4352 unsigned long lock_flags = 0;
4354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4355 res = (struct ipr_resource_entry *)sdev->hostdata;
4357 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4358 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4361 scsi_change_queue_depth(sdev, qdepth);
4362 return sdev->queue_depth;
4366 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4367 * @dev: device struct
4368 * @attr: device attribute structure
4372 * number of bytes printed to buffer
4374 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4376 struct scsi_device *sdev = to_scsi_device(dev);
4377 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4378 struct ipr_resource_entry *res;
4379 unsigned long lock_flags = 0;
4380 ssize_t len = -ENXIO;
4382 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4383 res = (struct ipr_resource_entry *)sdev->hostdata;
4385 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4390 static struct device_attribute ipr_adapter_handle_attr = {
4392 .name = "adapter_handle",
4395 .show = ipr_show_adapter_handle
4399 * ipr_show_resource_path - Show the resource path or the resource address for
4401 * @dev: device struct
4402 * @attr: device attribute structure
4406 * number of bytes printed to buffer
4408 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4410 struct scsi_device *sdev = to_scsi_device(dev);
4411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4412 struct ipr_resource_entry *res;
4413 unsigned long lock_flags = 0;
4414 ssize_t len = -ENXIO;
4415 char buffer[IPR_MAX_RES_PATH_LENGTH];
4417 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4418 res = (struct ipr_resource_entry *)sdev->hostdata;
4419 if (res && ioa_cfg->sis64)
4420 len = snprintf(buf, PAGE_SIZE, "%s\n",
4421 __ipr_format_res_path(res->res_path, buffer,
4424 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4425 res->bus, res->target, res->lun);
4427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4431 static struct device_attribute ipr_resource_path_attr = {
4433 .name = "resource_path",
4436 .show = ipr_show_resource_path
4440 * ipr_show_device_id - Show the device_id for this device.
4441 * @dev: device struct
4442 * @attr: device attribute structure
4446 * number of bytes printed to buffer
4448 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4450 struct scsi_device *sdev = to_scsi_device(dev);
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 unsigned long lock_flags = 0;
4454 ssize_t len = -ENXIO;
4456 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4457 res = (struct ipr_resource_entry *)sdev->hostdata;
4458 if (res && ioa_cfg->sis64)
4459 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4461 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4467 static struct device_attribute ipr_device_id_attr = {
4469 .name = "device_id",
4472 .show = ipr_show_device_id
4476 * ipr_show_resource_type - Show the resource type for this device.
4477 * @dev: device struct
4478 * @attr: device attribute structure
4482 * number of bytes printed to buffer
4484 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4486 struct scsi_device *sdev = to_scsi_device(dev);
4487 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4488 struct ipr_resource_entry *res;
4489 unsigned long lock_flags = 0;
4490 ssize_t len = -ENXIO;
4492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4493 res = (struct ipr_resource_entry *)sdev->hostdata;
4496 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4498 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4502 static struct device_attribute ipr_resource_type_attr = {
4504 .name = "resource_type",
4507 .show = ipr_show_resource_type
4511 * ipr_show_raw_mode - Show the adapter's raw mode
4512 * @dev: class device struct
4516 * number of bytes printed to buffer
4518 static ssize_t ipr_show_raw_mode(struct device *dev,
4519 struct device_attribute *attr, char *buf)
4521 struct scsi_device *sdev = to_scsi_device(dev);
4522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4523 struct ipr_resource_entry *res;
4524 unsigned long lock_flags = 0;
4527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4528 res = (struct ipr_resource_entry *)sdev->hostdata;
4530 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4538 * ipr_store_raw_mode - Change the adapter's raw mode
4539 * @dev: class device struct
4543 * number of bytes printed to buffer
4545 static ssize_t ipr_store_raw_mode(struct device *dev,
4546 struct device_attribute *attr,
4547 const char *buf, size_t count)
4549 struct scsi_device *sdev = to_scsi_device(dev);
4550 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4551 struct ipr_resource_entry *res;
4552 unsigned long lock_flags = 0;
4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4556 res = (struct ipr_resource_entry *)sdev->hostdata;
4558 if (ipr_is_af_dasd_device(res)) {
4559 res->raw_mode = simple_strtoul(buf, NULL, 10);
4562 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4563 res->raw_mode ? "enabled" : "disabled");
4568 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4572 static struct device_attribute ipr_raw_mode_attr = {
4575 .mode = S_IRUGO | S_IWUSR,
4577 .show = ipr_show_raw_mode,
4578 .store = ipr_store_raw_mode
4581 static struct device_attribute *ipr_dev_attrs[] = {
4582 &ipr_adapter_handle_attr,
4583 &ipr_resource_path_attr,
4584 &ipr_device_id_attr,
4585 &ipr_resource_type_attr,
4591 * ipr_biosparam - Return the HSC mapping
4592 * @sdev: scsi device struct
4593 * @block_device: block device pointer
4594 * @capacity: capacity of the device
4595 * @parm: Array containing returned HSC values.
4597 * This function generates the HSC parms that fdisk uses.
4598 * We want to make sure we return something that places partitions
4599 * on 4k boundaries for best performance with the IOA.
4604 static int ipr_biosparam(struct scsi_device *sdev,
4605 struct block_device *block_device,
4606 sector_t capacity, int *parm)
4614 cylinders = capacity;
4615 sector_div(cylinders, (128 * 32));
4620 parm[2] = cylinders;
4626 * ipr_find_starget - Find target based on bus/target.
4627 * @starget: scsi target struct
4630 * resource entry pointer if found / NULL if not found
4632 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4634 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4635 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4636 struct ipr_resource_entry *res;
4638 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4639 if ((res->bus == starget->channel) &&
4640 (res->target == starget->id)) {
4648 static struct ata_port_info sata_port_info;
4651 * ipr_target_alloc - Prepare for commands to a SCSI target
4652 * @starget: scsi target struct
4654 * If the device is a SATA device, this function allocates an
4655 * ATA port with libata, else it does nothing.
4658 * 0 on success / non-0 on failure
4660 static int ipr_target_alloc(struct scsi_target *starget)
4662 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4664 struct ipr_sata_port *sata_port;
4665 struct ata_port *ap;
4666 struct ipr_resource_entry *res;
4667 unsigned long lock_flags;
4669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4670 res = ipr_find_starget(starget);
4671 starget->hostdata = NULL;
4673 if (res && ipr_is_gata(res)) {
4674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4675 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4679 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 sata_port->ioa_cfg = ioa_cfg;
4684 sata_port->res = res;
4686 res->sata_port = sata_port;
4687 ap->private_data = sata_port;
4688 starget->hostdata = sata_port;
4694 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4700 * ipr_target_destroy - Destroy a SCSI target
4701 * @starget: scsi target struct
4703 * If the device was a SATA device, this function frees the libata
4704 * ATA port, else it does nothing.
4707 static void ipr_target_destroy(struct scsi_target *starget)
4709 struct ipr_sata_port *sata_port = starget->hostdata;
4710 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4711 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4713 if (ioa_cfg->sis64) {
4714 if (!ipr_find_starget(starget)) {
4715 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4716 clear_bit(starget->id, ioa_cfg->array_ids);
4717 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4718 clear_bit(starget->id, ioa_cfg->vset_ids);
4719 else if (starget->channel == 0)
4720 clear_bit(starget->id, ioa_cfg->target_ids);
4725 starget->hostdata = NULL;
4726 ata_sas_port_destroy(sata_port->ap);
4732 * ipr_find_sdev - Find device based on bus/target/lun.
4733 * @sdev: scsi device struct
4736 * resource entry pointer if found / NULL if not found
4738 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4741 struct ipr_resource_entry *res;
4743 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4744 if ((res->bus == sdev->channel) &&
4745 (res->target == sdev->id) &&
4746 (res->lun == sdev->lun))
4754 * ipr_slave_destroy - Unconfigure a SCSI device
4755 * @sdev: scsi device struct
4760 static void ipr_slave_destroy(struct scsi_device *sdev)
4762 struct ipr_resource_entry *res;
4763 struct ipr_ioa_cfg *ioa_cfg;
4764 unsigned long lock_flags = 0;
4766 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4768 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4769 res = (struct ipr_resource_entry *) sdev->hostdata;
4772 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4773 sdev->hostdata = NULL;
4775 res->sata_port = NULL;
4777 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4781 * ipr_slave_configure - Configure a SCSI device
4782 * @sdev: scsi device struct
4784 * This function configures the specified scsi device.
4789 static int ipr_slave_configure(struct scsi_device *sdev)
4791 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4792 struct ipr_resource_entry *res;
4793 struct ata_port *ap = NULL;
4794 unsigned long lock_flags = 0;
4795 char buffer[IPR_MAX_RES_PATH_LENGTH];
4797 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4798 res = sdev->hostdata;
4800 if (ipr_is_af_dasd_device(res))
4801 sdev->type = TYPE_RAID;
4802 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4803 sdev->scsi_level = 4;
4804 sdev->no_uld_attach = 1;
4806 if (ipr_is_vset_device(res)) {
4807 sdev->scsi_level = SCSI_SPC_3;
4808 blk_queue_rq_timeout(sdev->request_queue,
4809 IPR_VSET_RW_TIMEOUT);
4810 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4812 if (ipr_is_gata(res) && res->sata_port)
4813 ap = res->sata_port->ap;
4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4817 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4818 ata_sas_slave_configure(sdev, ap);
4822 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4823 ipr_format_res_path(ioa_cfg,
4824 res->res_path, buffer, sizeof(buffer)));
4827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4832 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4833 * @sdev: scsi device struct
4835 * This function initializes an ATA port so that future commands
4836 * sent through queuecommand will work.
4841 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4843 struct ipr_sata_port *sata_port = NULL;
4847 if (sdev->sdev_target)
4848 sata_port = sdev->sdev_target->hostdata;
4850 rc = ata_sas_port_init(sata_port->ap);
4852 rc = ata_sas_sync_probe(sata_port->ap);
4856 ipr_slave_destroy(sdev);
4863 * ipr_slave_alloc - Prepare for commands to a device.
4864 * @sdev: scsi device struct
4866 * This function saves a pointer to the resource entry
4867 * in the scsi device struct if the device exists. We
4868 * can then use this pointer in ipr_queuecommand when
4869 * handling new commands.
4872 * 0 on success / -ENXIO if device does not exist
4874 static int ipr_slave_alloc(struct scsi_device *sdev)
4876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4877 struct ipr_resource_entry *res;
4878 unsigned long lock_flags;
4881 sdev->hostdata = NULL;
4883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4885 res = ipr_find_sdev(sdev);
4890 sdev->hostdata = res;
4891 if (!ipr_is_naca_model(res))
4892 res->needs_sync_complete = 1;
4894 if (ipr_is_gata(res)) {
4895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4896 return ipr_ata_slave_alloc(sdev);
4900 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4906 * ipr_match_lun - Match function for specified LUN
4907 * @ipr_cmd: ipr command struct
4908 * @device: device to match (sdev)
4911 * 1 if command matches sdev / 0 if command does not match sdev
4913 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4915 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4921 * ipr_wait_for_ops - Wait for matching commands to complete
4922 * @ipr_cmd: ipr command struct
4923 * @device: device to match (sdev)
4924 * @match: match function to use
4929 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4930 int (*match)(struct ipr_cmnd *, void *))
4932 struct ipr_cmnd *ipr_cmd;
4934 unsigned long flags;
4935 struct ipr_hrr_queue *hrrq;
4936 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4937 DECLARE_COMPLETION_ONSTACK(comp);
4943 for_each_hrrq(hrrq, ioa_cfg) {
4944 spin_lock_irqsave(hrrq->lock, flags);
4945 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4946 if (match(ipr_cmd, device)) {
4947 ipr_cmd->eh_comp = ∁
4951 spin_unlock_irqrestore(hrrq->lock, flags);
4955 timeout = wait_for_completion_timeout(&comp, timeout);
4960 for_each_hrrq(hrrq, ioa_cfg) {
4961 spin_lock_irqsave(hrrq->lock, flags);
4962 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4963 if (match(ipr_cmd, device)) {
4964 ipr_cmd->eh_comp = NULL;
4968 spin_unlock_irqrestore(hrrq->lock, flags);
4972 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4974 return wait ? FAILED : SUCCESS;
4983 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
4985 struct ipr_ioa_cfg *ioa_cfg;
4986 unsigned long lock_flags = 0;
4990 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4991 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4993 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4994 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4995 dev_err(&ioa_cfg->pdev->dev,
4996 "Adapter being reset as a result of error recovery.\n");
4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4999 ioa_cfg->sdt_state = GET_DUMP;
5002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5003 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5004 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5006 /* If we got hit with a host reset while we were already resetting
5007 the adapter for some reason, and the reset failed. */
5008 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5019 * ipr_device_reset - Reset the device
5020 * @ioa_cfg: ioa config struct
5021 * @res: resource entry struct
5023 * This function issues a device reset to the affected device.
5024 * If the device is a SCSI device, a LUN reset will be sent
5025 * to the device first. If that does not work, a target reset
5026 * will be sent. If the device is a SATA device, a PHY reset will
5030 * 0 on success / non-zero on failure
5032 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5033 struct ipr_resource_entry *res)
5035 struct ipr_cmnd *ipr_cmd;
5036 struct ipr_ioarcb *ioarcb;
5037 struct ipr_cmd_pkt *cmd_pkt;
5038 struct ipr_ioarcb_ata_regs *regs;
5042 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5043 ioarcb = &ipr_cmd->ioarcb;
5044 cmd_pkt = &ioarcb->cmd_pkt;
5046 if (ipr_cmd->ioa_cfg->sis64) {
5047 regs = &ipr_cmd->i.ata_ioadl.regs;
5048 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5050 regs = &ioarcb->u.add_data.u.regs;
5052 ioarcb->res_handle = res->res_handle;
5053 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5054 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5055 if (ipr_is_gata(res)) {
5056 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5057 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5058 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5061 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5062 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5063 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5064 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5065 if (ipr_cmd->ioa_cfg->sis64)
5066 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5067 sizeof(struct ipr_ioasa_gata));
5069 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5070 sizeof(struct ipr_ioasa_gata));
5074 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5078 * ipr_sata_reset - Reset the SATA port
5079 * @link: SATA link to reset
5080 * @classes: class of the attached device
5082 * This function issues a SATA phy reset to the affected ATA link.
5085 * 0 on success / non-zero on failure
5087 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5088 unsigned long deadline)
5090 struct ipr_sata_port *sata_port = link->ap->private_data;
5091 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5092 struct ipr_resource_entry *res;
5093 unsigned long lock_flags = 0;
5097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5098 while (ioa_cfg->in_reset_reload) {
5099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5100 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5104 res = sata_port->res;
5106 rc = ipr_device_reset(ioa_cfg, res);
5107 *classes = res->ata_class;
5110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5116 * ipr_eh_dev_reset - Reset the device
5117 * @scsi_cmd: scsi command struct
5119 * This function issues a device reset to the affected device.
5120 * A LUN reset will be sent to the device first. If that does
5121 * not work, a target reset will be sent.
5126 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5128 struct ipr_cmnd *ipr_cmd;
5129 struct ipr_ioa_cfg *ioa_cfg;
5130 struct ipr_resource_entry *res;
5131 struct ata_port *ap;
5133 struct ipr_hrr_queue *hrrq;
5136 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5137 res = scsi_cmd->device->hostdata;
5143 * If we are currently going through reset/reload, return failed. This will force the
5144 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5147 if (ioa_cfg->in_reset_reload)
5149 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5152 for_each_hrrq(hrrq, ioa_cfg) {
5153 spin_lock(&hrrq->_lock);
5154 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5155 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5156 if (ipr_cmd->scsi_cmd)
5157 ipr_cmd->done = ipr_scsi_eh_done;
5159 ipr_cmd->done = ipr_sata_eh_done;
5161 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5162 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5163 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5167 spin_unlock(&hrrq->_lock);
5169 res->resetting_device = 1;
5170 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5172 if (ipr_is_gata(res) && res->sata_port) {
5173 ap = res->sata_port->ap;
5174 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5175 ata_std_error_handler(ap);
5176 spin_lock_irq(scsi_cmd->device->host->host_lock);
5178 for_each_hrrq(hrrq, ioa_cfg) {
5179 spin_lock(&hrrq->_lock);
5180 list_for_each_entry(ipr_cmd,
5181 &hrrq->hrrq_pending_q, queue) {
5182 if (ipr_cmd->ioarcb.res_handle ==
5188 spin_unlock(&hrrq->_lock);
5191 rc = ipr_device_reset(ioa_cfg, res);
5192 res->resetting_device = 0;
5193 res->reset_occurred = 1;
5196 return rc ? FAILED : SUCCESS;
5199 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5202 struct ipr_ioa_cfg *ioa_cfg;
5204 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5206 spin_lock_irq(cmd->device->host->host_lock);
5207 rc = __ipr_eh_dev_reset(cmd);
5208 spin_unlock_irq(cmd->device->host->host_lock);
5211 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5217 * ipr_bus_reset_done - Op done function for bus reset.
5218 * @ipr_cmd: ipr command struct
5220 * This function is the op done function for a bus reset
5225 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5228 struct ipr_resource_entry *res;
5231 if (!ioa_cfg->sis64)
5232 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5233 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5234 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5240 * If abort has not completed, indicate the reset has, else call the
5241 * abort's done function to wake the sleeping eh thread
5243 if (ipr_cmd->sibling->sibling)
5244 ipr_cmd->sibling->sibling = NULL;
5246 ipr_cmd->sibling->done(ipr_cmd->sibling);
5248 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5253 * ipr_abort_timeout - An abort task has timed out
5254 * @ipr_cmd: ipr command struct
5256 * This function handles when an abort task times out. If this
5257 * happens we issue a bus reset since we have resources tied
5258 * up that must be freed before returning to the midlayer.
5263 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5265 struct ipr_cmnd *reset_cmd;
5266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5267 struct ipr_cmd_pkt *cmd_pkt;
5268 unsigned long lock_flags = 0;
5271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5272 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5277 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5278 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5279 ipr_cmd->sibling = reset_cmd;
5280 reset_cmd->sibling = ipr_cmd;
5281 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5282 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5283 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5284 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5285 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5287 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5293 * ipr_cancel_op - Cancel specified op
5294 * @scsi_cmd: scsi command struct
5296 * This function cancels specified op.
5301 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5303 struct ipr_cmnd *ipr_cmd;
5304 struct ipr_ioa_cfg *ioa_cfg;
5305 struct ipr_resource_entry *res;
5306 struct ipr_cmd_pkt *cmd_pkt;
5309 struct ipr_hrr_queue *hrrq;
5312 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5313 res = scsi_cmd->device->hostdata;
5315 /* If we are currently going through reset/reload, return failed.
5316 * This will force the mid-layer to call ipr_eh_host_reset,
5317 * which will then go to sleep and wait for the reset to complete
5319 if (ioa_cfg->in_reset_reload ||
5320 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5326 * If we are aborting a timed out op, chances are that the timeout was caused
5327 * by a still not detected EEH error. In such cases, reading a register will
5328 * trigger the EEH recovery infrastructure.
5330 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5332 if (!ipr_is_gscsi(res))
5335 for_each_hrrq(hrrq, ioa_cfg) {
5336 spin_lock(&hrrq->_lock);
5337 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5338 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5339 ipr_cmd->done = ipr_scsi_eh_done;
5344 spin_unlock(&hrrq->_lock);
5350 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5351 ipr_cmd->ioarcb.res_handle = res->res_handle;
5352 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5353 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5354 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5355 ipr_cmd->u.sdev = scsi_cmd->device;
5357 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5359 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5360 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5363 * If the abort task timed out and we sent a bus reset, we will get
5364 * one the following responses to the abort
5366 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5371 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5372 if (!ipr_is_naca_model(res))
5373 res->needs_sync_complete = 1;
5376 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5380 * ipr_eh_abort - Abort a single op
5381 * @scsi_cmd: scsi command struct
5384 * 0 if scan in progress / 1 if scan is complete
5386 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5388 unsigned long lock_flags;
5389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5392 spin_lock_irqsave(shost->host_lock, lock_flags);
5393 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5395 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5397 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5402 * ipr_eh_host_reset - Reset the host adapter
5403 * @scsi_cmd: scsi command struct
5408 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5410 unsigned long flags;
5412 struct ipr_ioa_cfg *ioa_cfg;
5416 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5418 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5419 rc = ipr_cancel_op(scsi_cmd);
5420 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5423 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5429 * ipr_handle_other_interrupt - Handle "other" interrupts
5430 * @ioa_cfg: ioa config struct
5431 * @int_reg: interrupt register
5434 * IRQ_NONE / IRQ_HANDLED
5436 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5439 irqreturn_t rc = IRQ_HANDLED;
5442 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5443 int_reg &= ~int_mask_reg;
5445 /* If an interrupt on the adapter did not occur, ignore it.
5446 * Or in the case of SIS 64, check for a stage change interrupt.
5448 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5449 if (ioa_cfg->sis64) {
5450 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5451 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5452 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5454 /* clear stage change */
5455 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5456 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5457 list_del(&ioa_cfg->reset_cmd->queue);
5458 del_timer(&ioa_cfg->reset_cmd->timer);
5459 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5467 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5468 /* Mask the interrupt */
5469 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5470 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5472 list_del(&ioa_cfg->reset_cmd->queue);
5473 del_timer(&ioa_cfg->reset_cmd->timer);
5474 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5475 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5476 if (ioa_cfg->clear_isr) {
5477 if (ipr_debug && printk_ratelimit())
5478 dev_err(&ioa_cfg->pdev->dev,
5479 "Spurious interrupt detected. 0x%08X\n", int_reg);
5480 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5481 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5485 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5486 ioa_cfg->ioa_unit_checked = 1;
5487 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5488 dev_err(&ioa_cfg->pdev->dev,
5489 "No Host RRQ. 0x%08X\n", int_reg);
5491 dev_err(&ioa_cfg->pdev->dev,
5492 "Permanent IOA failure. 0x%08X\n", int_reg);
5494 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5495 ioa_cfg->sdt_state = GET_DUMP;
5497 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5498 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5505 * ipr_isr_eh - Interrupt service routine error handler
5506 * @ioa_cfg: ioa config struct
5507 * @msg: message to log
5512 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5514 ioa_cfg->errors_logged++;
5515 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5517 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5518 ioa_cfg->sdt_state = GET_DUMP;
5520 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5523 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5524 struct list_head *doneq)
5528 struct ipr_cmnd *ipr_cmd;
5529 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5532 /* If interrupts are disabled, ignore the interrupt */
5533 if (!hrr_queue->allow_interrupts)
5536 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5537 hrr_queue->toggle_bit) {
5539 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5540 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5541 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5543 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5544 cmd_index < hrr_queue->min_cmd_id)) {
5546 "Invalid response handle from IOA: ",
5551 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5552 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5554 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5556 list_move_tail(&ipr_cmd->queue, doneq);
5558 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5559 hrr_queue->hrrq_curr++;
5561 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5562 hrr_queue->toggle_bit ^= 1u;
5565 if (budget > 0 && num_hrrq >= budget)
5572 static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5574 struct ipr_ioa_cfg *ioa_cfg;
5575 struct ipr_hrr_queue *hrrq;
5576 struct ipr_cmnd *ipr_cmd, *temp;
5577 unsigned long hrrq_flags;
5581 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5582 ioa_cfg = hrrq->ioa_cfg;
5584 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5585 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5587 if (completed_ops < budget)
5588 blk_iopoll_complete(iop);
5589 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5591 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5592 list_del(&ipr_cmd->queue);
5593 del_timer(&ipr_cmd->timer);
5594 ipr_cmd->fast_done(ipr_cmd);
5597 return completed_ops;
5601 * ipr_isr - Interrupt service routine
5603 * @devp: pointer to ioa config struct
5606 * IRQ_NONE / IRQ_HANDLED
5608 static irqreturn_t ipr_isr(int irq, void *devp)
5610 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5611 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5612 unsigned long hrrq_flags = 0;
5616 struct ipr_cmnd *ipr_cmd, *temp;
5617 irqreturn_t rc = IRQ_NONE;
5620 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5621 /* If interrupts are disabled, ignore the interrupt */
5622 if (!hrrq->allow_interrupts) {
5623 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5628 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5631 if (!ioa_cfg->clear_isr)
5634 /* Clear the PCI interrupt */
5637 writel(IPR_PCII_HRRQ_UPDATED,
5638 ioa_cfg->regs.clr_interrupt_reg32);
5639 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5640 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5641 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5643 } else if (rc == IRQ_NONE && irq_none == 0) {
5644 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5646 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5647 int_reg & IPR_PCII_HRRQ_UPDATED) {
5649 "Error clearing HRRQ: ", num_hrrq);
5656 if (unlikely(rc == IRQ_NONE))
5657 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5659 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5660 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5661 list_del(&ipr_cmd->queue);
5662 del_timer(&ipr_cmd->timer);
5663 ipr_cmd->fast_done(ipr_cmd);
5669 * ipr_isr_mhrrq - Interrupt service routine
5671 * @devp: pointer to ioa config struct
5674 * IRQ_NONE / IRQ_HANDLED
5676 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5678 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5679 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5680 unsigned long hrrq_flags = 0;
5681 struct ipr_cmnd *ipr_cmd, *temp;
5682 irqreturn_t rc = IRQ_NONE;
5685 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5687 /* If interrupts are disabled, ignore the interrupt */
5688 if (!hrrq->allow_interrupts) {
5689 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5693 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5694 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5696 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5697 blk_iopoll_sched(&hrrq->iopoll);
5698 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5702 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5705 if (ipr_process_hrrq(hrrq, -1, &doneq))
5709 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5711 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5712 list_del(&ipr_cmd->queue);
5713 del_timer(&ipr_cmd->timer);
5714 ipr_cmd->fast_done(ipr_cmd);
5720 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5721 * @ioa_cfg: ioa config struct
5722 * @ipr_cmd: ipr command struct
5725 * 0 on success / -1 on failure
5727 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5728 struct ipr_cmnd *ipr_cmd)
5731 struct scatterlist *sg;
5733 u32 ioadl_flags = 0;
5734 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5735 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5736 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5738 length = scsi_bufflen(scsi_cmd);
5742 nseg = scsi_dma_map(scsi_cmd);
5744 if (printk_ratelimit())
5745 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5749 ipr_cmd->dma_use_sg = nseg;
5751 ioarcb->data_transfer_length = cpu_to_be32(length);
5753 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5755 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5756 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5757 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5758 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5759 ioadl_flags = IPR_IOADL_FLAGS_READ;
5761 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5762 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5763 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5764 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5767 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5772 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5773 * @ioa_cfg: ioa config struct
5774 * @ipr_cmd: ipr command struct
5777 * 0 on success / -1 on failure
5779 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5780 struct ipr_cmnd *ipr_cmd)
5783 struct scatterlist *sg;
5785 u32 ioadl_flags = 0;
5786 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5787 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5788 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5790 length = scsi_bufflen(scsi_cmd);
5794 nseg = scsi_dma_map(scsi_cmd);
5796 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5800 ipr_cmd->dma_use_sg = nseg;
5802 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5803 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5804 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5805 ioarcb->data_transfer_length = cpu_to_be32(length);
5807 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5808 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5809 ioadl_flags = IPR_IOADL_FLAGS_READ;
5810 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5811 ioarcb->read_ioadl_len =
5812 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5815 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5816 ioadl = ioarcb->u.add_data.u.ioadl;
5817 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5818 offsetof(struct ipr_ioarcb, u.add_data));
5819 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5822 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5823 ioadl[i].flags_and_data_len =
5824 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5825 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5828 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5833 * ipr_erp_done - Process completion of ERP for a device
5834 * @ipr_cmd: ipr command struct
5836 * This function copies the sense buffer into the scsi_cmd
5837 * struct and pushes the scsi_done function.
5842 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5844 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5845 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5846 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5848 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5849 scsi_cmd->result |= (DID_ERROR << 16);
5850 scmd_printk(KERN_ERR, scsi_cmd,
5851 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5853 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5854 SCSI_SENSE_BUFFERSIZE);
5858 if (!ipr_is_naca_model(res))
5859 res->needs_sync_complete = 1;
5862 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5863 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5864 scsi_cmd->scsi_done(scsi_cmd);
5868 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5869 * @ipr_cmd: ipr command struct
5874 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5876 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5877 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5878 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5880 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5881 ioarcb->data_transfer_length = 0;
5882 ioarcb->read_data_transfer_length = 0;
5883 ioarcb->ioadl_len = 0;
5884 ioarcb->read_ioadl_len = 0;
5885 ioasa->hdr.ioasc = 0;
5886 ioasa->hdr.residual_data_len = 0;
5888 if (ipr_cmd->ioa_cfg->sis64)
5889 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5890 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5892 ioarcb->write_ioadl_addr =
5893 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5894 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5899 * ipr_erp_request_sense - Send request sense to a device
5900 * @ipr_cmd: ipr command struct
5902 * This function sends a request sense to a device as a result
5903 * of a check condition.
5908 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5910 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5911 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5913 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5914 ipr_erp_done(ipr_cmd);
5918 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5920 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5921 cmd_pkt->cdb[0] = REQUEST_SENSE;
5922 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5924 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5925 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5927 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5928 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5930 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5931 IPR_REQUEST_SENSE_TIMEOUT * 2);
5935 * ipr_erp_cancel_all - Send cancel all to a device
5936 * @ipr_cmd: ipr command struct
5938 * This function sends a cancel all to a device to clear the
5939 * queue. If we are running TCQ on the device, QERR is set to 1,
5940 * which means all outstanding ops have been dropped on the floor.
5941 * Cancel all will return them to us.
5946 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5948 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5949 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5950 struct ipr_cmd_pkt *cmd_pkt;
5954 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5956 if (!scsi_cmd->device->simple_tags) {
5957 ipr_erp_request_sense(ipr_cmd);
5961 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5962 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5963 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5965 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5966 IPR_CANCEL_ALL_TIMEOUT);
5970 * ipr_dump_ioasa - Dump contents of IOASA
5971 * @ioa_cfg: ioa config struct
5972 * @ipr_cmd: ipr command struct
5973 * @res: resource entry struct
5975 * This function is invoked by the interrupt handler when ops
5976 * fail. It will log the IOASA if appropriate. Only called
5982 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5983 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5987 u32 ioasc, fd_ioasc;
5988 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5989 __be32 *ioasa_data = (__be32 *)ioasa;
5992 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5993 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5998 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6001 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6002 error_index = ipr_get_error(fd_ioasc);
6004 error_index = ipr_get_error(ioasc);
6006 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6007 /* Don't log an error if the IOA already logged one */
6008 if (ioasa->hdr.ilid != 0)
6011 if (!ipr_is_gscsi(res))
6014 if (ipr_error_table[error_index].log_ioasa == 0)
6018 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6020 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6021 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6022 data_len = sizeof(struct ipr_ioasa64);
6023 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6024 data_len = sizeof(struct ipr_ioasa);
6026 ipr_err("IOASA Dump:\n");
6028 for (i = 0; i < data_len / 4; i += 4) {
6029 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6030 be32_to_cpu(ioasa_data[i]),
6031 be32_to_cpu(ioasa_data[i+1]),
6032 be32_to_cpu(ioasa_data[i+2]),
6033 be32_to_cpu(ioasa_data[i+3]));
6038 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6040 * @sense_buf: sense data buffer
6045 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6048 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6049 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6050 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6051 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6053 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6055 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6058 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6060 if (ipr_is_vset_device(res) &&
6061 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6062 ioasa->u.vset.failing_lba_hi != 0) {
6063 sense_buf[0] = 0x72;
6064 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6065 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6066 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6070 sense_buf[9] = 0x0A;
6071 sense_buf[10] = 0x80;
6073 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6075 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6076 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6077 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6078 sense_buf[15] = failing_lba & 0x000000ff;
6080 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6082 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6083 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6084 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6085 sense_buf[19] = failing_lba & 0x000000ff;
6087 sense_buf[0] = 0x70;
6088 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6089 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6090 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6092 /* Illegal request */
6093 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6094 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6095 sense_buf[7] = 10; /* additional length */
6097 /* IOARCB was in error */
6098 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6099 sense_buf[15] = 0xC0;
6100 else /* Parameter data was invalid */
6101 sense_buf[15] = 0x80;
6104 ((IPR_FIELD_POINTER_MASK &
6105 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6107 (IPR_FIELD_POINTER_MASK &
6108 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6110 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6111 if (ipr_is_vset_device(res))
6112 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6114 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6116 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6117 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6118 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6119 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6120 sense_buf[6] = failing_lba & 0x000000ff;
6123 sense_buf[7] = 6; /* additional length */
6129 * ipr_get_autosense - Copy autosense data to sense buffer
6130 * @ipr_cmd: ipr command struct
6132 * This function copies the autosense buffer to the buffer
6133 * in the scsi_cmd, if there is autosense available.
6136 * 1 if autosense was available / 0 if not
6138 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6140 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6141 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6143 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6146 if (ipr_cmd->ioa_cfg->sis64)
6147 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6148 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6149 SCSI_SENSE_BUFFERSIZE));
6151 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6152 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6153 SCSI_SENSE_BUFFERSIZE));
6158 * ipr_erp_start - Process an error response for a SCSI op
6159 * @ioa_cfg: ioa config struct
6160 * @ipr_cmd: ipr command struct
6162 * This function determines whether or not to initiate ERP
6163 * on the affected device.
6168 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6169 struct ipr_cmnd *ipr_cmd)
6171 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6172 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6173 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6174 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6177 ipr_scsi_eh_done(ipr_cmd);
6181 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6182 ipr_gen_sense(ipr_cmd);
6184 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6186 switch (masked_ioasc) {
6187 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6188 if (ipr_is_naca_model(res))
6189 scsi_cmd->result |= (DID_ABORT << 16);
6191 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6193 case IPR_IOASC_IR_RESOURCE_HANDLE:
6194 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6195 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6197 case IPR_IOASC_HW_SEL_TIMEOUT:
6198 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6199 if (!ipr_is_naca_model(res))
6200 res->needs_sync_complete = 1;
6202 case IPR_IOASC_SYNC_REQUIRED:
6204 res->needs_sync_complete = 1;
6205 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6207 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6208 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6209 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6211 case IPR_IOASC_BUS_WAS_RESET:
6212 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6214 * Report the bus reset and ask for a retry. The device
6215 * will give CC/UA the next command.
6217 if (!res->resetting_device)
6218 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6219 scsi_cmd->result |= (DID_ERROR << 16);
6220 if (!ipr_is_naca_model(res))
6221 res->needs_sync_complete = 1;
6223 case IPR_IOASC_HW_DEV_BUS_STATUS:
6224 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6225 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6226 if (!ipr_get_autosense(ipr_cmd)) {
6227 if (!ipr_is_naca_model(res)) {
6228 ipr_erp_cancel_all(ipr_cmd);
6233 if (!ipr_is_naca_model(res))
6234 res->needs_sync_complete = 1;
6236 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6238 case IPR_IOASC_IR_NON_OPTIMIZED:
6239 if (res->raw_mode) {
6241 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6243 scsi_cmd->result |= (DID_ERROR << 16);
6246 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6247 scsi_cmd->result |= (DID_ERROR << 16);
6248 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6249 res->needs_sync_complete = 1;
6253 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6254 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6255 scsi_cmd->scsi_done(scsi_cmd);
6259 * ipr_scsi_done - mid-layer done function
6260 * @ipr_cmd: ipr command struct
6262 * This function is invoked by the interrupt handler for
6263 * ops generated by the SCSI mid-layer
6268 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6272 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6273 unsigned long lock_flags;
6275 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6277 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6278 scsi_dma_unmap(scsi_cmd);
6280 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6281 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6282 scsi_cmd->scsi_done(scsi_cmd);
6283 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6286 spin_lock(&ipr_cmd->hrrq->_lock);
6287 ipr_erp_start(ioa_cfg, ipr_cmd);
6288 spin_unlock(&ipr_cmd->hrrq->_lock);
6289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6294 * ipr_queuecommand - Queue a mid-layer request
6295 * @shost: scsi host struct
6296 * @scsi_cmd: scsi command struct
6298 * This function queues a request generated by the mid-layer.
6302 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6303 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6305 static int ipr_queuecommand(struct Scsi_Host *shost,
6306 struct scsi_cmnd *scsi_cmd)
6308 struct ipr_ioa_cfg *ioa_cfg;
6309 struct ipr_resource_entry *res;
6310 struct ipr_ioarcb *ioarcb;
6311 struct ipr_cmnd *ipr_cmd;
6312 unsigned long hrrq_flags, lock_flags;
6314 struct ipr_hrr_queue *hrrq;
6317 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6319 scsi_cmd->result = (DID_OK << 16);
6320 res = scsi_cmd->device->hostdata;
6322 if (ipr_is_gata(res) && res->sata_port) {
6323 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6324 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6325 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6329 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6330 hrrq = &ioa_cfg->hrrq[hrrq_id];
6332 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6334 * We are currently blocking all devices due to a host reset
6335 * We have told the host to stop giving us new requests, but
6336 * ERP ops don't count. FIXME
6338 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6339 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6340 return SCSI_MLQUEUE_HOST_BUSY;
6344 * FIXME - Create scsi_set_host_offline interface
6345 * and the ioa_is_dead check can be removed
6347 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6348 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6352 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6353 if (ipr_cmd == NULL) {
6354 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6355 return SCSI_MLQUEUE_HOST_BUSY;
6357 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6359 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6360 ioarcb = &ipr_cmd->ioarcb;
6362 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6363 ipr_cmd->scsi_cmd = scsi_cmd;
6364 ipr_cmd->done = ipr_scsi_eh_done;
6366 if (ipr_is_gscsi(res)) {
6367 if (scsi_cmd->underflow == 0)
6368 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6370 if (res->reset_occurred) {
6371 res->reset_occurred = 0;
6372 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6376 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6377 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6379 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6380 if (scsi_cmd->flags & SCMD_TAGGED)
6381 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6383 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6386 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6387 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6388 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6390 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6391 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6393 if (scsi_cmd->underflow == 0)
6394 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6398 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6400 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6402 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6403 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6404 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6405 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6407 scsi_dma_unmap(scsi_cmd);
6408 return SCSI_MLQUEUE_HOST_BUSY;
6411 if (unlikely(hrrq->ioa_is_dead)) {
6412 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6413 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6414 scsi_dma_unmap(scsi_cmd);
6418 ioarcb->res_handle = res->res_handle;
6419 if (res->needs_sync_complete) {
6420 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6421 res->needs_sync_complete = 0;
6423 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6424 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6425 ipr_send_command(ipr_cmd);
6426 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6430 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6431 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6432 scsi_cmd->result = (DID_NO_CONNECT << 16);
6433 scsi_cmd->scsi_done(scsi_cmd);
6434 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6439 * ipr_ioctl - IOCTL handler
6440 * @sdev: scsi device struct
6445 * 0 on success / other on failure
6447 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6449 struct ipr_resource_entry *res;
6451 res = (struct ipr_resource_entry *)sdev->hostdata;
6452 if (res && ipr_is_gata(res)) {
6453 if (cmd == HDIO_GET_IDENTITY)
6455 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6462 * ipr_info - Get information about the card/driver
6463 * @scsi_host: scsi host struct
6466 * pointer to buffer with description string
6468 static const char *ipr_ioa_info(struct Scsi_Host *host)
6470 static char buffer[512];
6471 struct ipr_ioa_cfg *ioa_cfg;
6472 unsigned long lock_flags = 0;
6474 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6476 spin_lock_irqsave(host->host_lock, lock_flags);
6477 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6478 spin_unlock_irqrestore(host->host_lock, lock_flags);
6483 static struct scsi_host_template driver_template = {
6484 .module = THIS_MODULE,
6486 .info = ipr_ioa_info,
6488 .queuecommand = ipr_queuecommand,
6489 .eh_abort_handler = ipr_eh_abort,
6490 .eh_device_reset_handler = ipr_eh_dev_reset,
6491 .eh_host_reset_handler = ipr_eh_host_reset,
6492 .slave_alloc = ipr_slave_alloc,
6493 .slave_configure = ipr_slave_configure,
6494 .slave_destroy = ipr_slave_destroy,
6495 .scan_finished = ipr_scan_finished,
6496 .target_alloc = ipr_target_alloc,
6497 .target_destroy = ipr_target_destroy,
6498 .change_queue_depth = ipr_change_queue_depth,
6499 .bios_param = ipr_biosparam,
6500 .can_queue = IPR_MAX_COMMANDS,
6502 .sg_tablesize = IPR_MAX_SGLIST,
6503 .max_sectors = IPR_IOA_MAX_SECTORS,
6504 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6505 .use_clustering = ENABLE_CLUSTERING,
6506 .shost_attrs = ipr_ioa_attrs,
6507 .sdev_attrs = ipr_dev_attrs,
6508 .proc_name = IPR_NAME,
6513 * ipr_ata_phy_reset - libata phy_reset handler
6514 * @ap: ata port to reset
6517 static void ipr_ata_phy_reset(struct ata_port *ap)
6519 unsigned long flags;
6520 struct ipr_sata_port *sata_port = ap->private_data;
6521 struct ipr_resource_entry *res = sata_port->res;
6522 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6526 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6527 while (ioa_cfg->in_reset_reload) {
6528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6529 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6530 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6533 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6536 rc = ipr_device_reset(ioa_cfg, res);
6539 ap->link.device[0].class = ATA_DEV_NONE;
6543 ap->link.device[0].class = res->ata_class;
6544 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6545 ap->link.device[0].class = ATA_DEV_NONE;
6548 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6553 * ipr_ata_post_internal - Cleanup after an internal command
6554 * @qc: ATA queued command
6559 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6561 struct ipr_sata_port *sata_port = qc->ap->private_data;
6562 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6563 struct ipr_cmnd *ipr_cmd;
6564 struct ipr_hrr_queue *hrrq;
6565 unsigned long flags;
6567 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6568 while (ioa_cfg->in_reset_reload) {
6569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6570 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6571 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6574 for_each_hrrq(hrrq, ioa_cfg) {
6575 spin_lock(&hrrq->_lock);
6576 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6577 if (ipr_cmd->qc == qc) {
6578 ipr_device_reset(ioa_cfg, sata_port->res);
6582 spin_unlock(&hrrq->_lock);
6584 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6588 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6589 * @regs: destination
6590 * @tf: source ATA taskfile
6595 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6596 struct ata_taskfile *tf)
6598 regs->feature = tf->feature;
6599 regs->nsect = tf->nsect;
6600 regs->lbal = tf->lbal;
6601 regs->lbam = tf->lbam;
6602 regs->lbah = tf->lbah;
6603 regs->device = tf->device;
6604 regs->command = tf->command;
6605 regs->hob_feature = tf->hob_feature;
6606 regs->hob_nsect = tf->hob_nsect;
6607 regs->hob_lbal = tf->hob_lbal;
6608 regs->hob_lbam = tf->hob_lbam;
6609 regs->hob_lbah = tf->hob_lbah;
6610 regs->ctl = tf->ctl;
6614 * ipr_sata_done - done function for SATA commands
6615 * @ipr_cmd: ipr command struct
6617 * This function is invoked by the interrupt handler for
6618 * ops generated by the SCSI mid-layer to SATA devices
6623 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6625 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6626 struct ata_queued_cmd *qc = ipr_cmd->qc;
6627 struct ipr_sata_port *sata_port = qc->ap->private_data;
6628 struct ipr_resource_entry *res = sata_port->res;
6629 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6631 spin_lock(&ipr_cmd->hrrq->_lock);
6632 if (ipr_cmd->ioa_cfg->sis64)
6633 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6634 sizeof(struct ipr_ioasa_gata));
6636 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6637 sizeof(struct ipr_ioasa_gata));
6638 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6640 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6641 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6643 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6644 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6646 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6647 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6648 spin_unlock(&ipr_cmd->hrrq->_lock);
6649 ata_qc_complete(qc);
6653 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6654 * @ipr_cmd: ipr command struct
6655 * @qc: ATA queued command
6658 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6659 struct ata_queued_cmd *qc)
6661 u32 ioadl_flags = 0;
6662 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6663 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6664 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6665 int len = qc->nbytes;
6666 struct scatterlist *sg;
6668 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6673 if (qc->dma_dir == DMA_TO_DEVICE) {
6674 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6675 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6676 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6677 ioadl_flags = IPR_IOADL_FLAGS_READ;
6679 ioarcb->data_transfer_length = cpu_to_be32(len);
6681 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6682 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6683 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6685 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6686 ioadl64->flags = cpu_to_be32(ioadl_flags);
6687 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6688 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6690 last_ioadl64 = ioadl64;
6694 if (likely(last_ioadl64))
6695 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6699 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6700 * @ipr_cmd: ipr command struct
6701 * @qc: ATA queued command
6704 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6705 struct ata_queued_cmd *qc)
6707 u32 ioadl_flags = 0;
6708 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6709 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6710 struct ipr_ioadl_desc *last_ioadl = NULL;
6711 int len = qc->nbytes;
6712 struct scatterlist *sg;
6718 if (qc->dma_dir == DMA_TO_DEVICE) {
6719 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6720 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6721 ioarcb->data_transfer_length = cpu_to_be32(len);
6723 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6724 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6725 ioadl_flags = IPR_IOADL_FLAGS_READ;
6726 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6727 ioarcb->read_ioadl_len =
6728 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6731 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6732 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6733 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6739 if (likely(last_ioadl))
6740 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6744 * ipr_qc_defer - Get a free ipr_cmd
6745 * @qc: queued command
6750 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6752 struct ata_port *ap = qc->ap;
6753 struct ipr_sata_port *sata_port = ap->private_data;
6754 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6755 struct ipr_cmnd *ipr_cmd;
6756 struct ipr_hrr_queue *hrrq;
6759 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6760 hrrq = &ioa_cfg->hrrq[hrrq_id];
6762 qc->lldd_task = NULL;
6763 spin_lock(&hrrq->_lock);
6764 if (unlikely(hrrq->ioa_is_dead)) {
6765 spin_unlock(&hrrq->_lock);
6769 if (unlikely(!hrrq->allow_cmds)) {
6770 spin_unlock(&hrrq->_lock);
6771 return ATA_DEFER_LINK;
6774 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6775 if (ipr_cmd == NULL) {
6776 spin_unlock(&hrrq->_lock);
6777 return ATA_DEFER_LINK;
6780 qc->lldd_task = ipr_cmd;
6781 spin_unlock(&hrrq->_lock);
6786 * ipr_qc_issue - Issue a SATA qc to a device
6787 * @qc: queued command
6792 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6794 struct ata_port *ap = qc->ap;
6795 struct ipr_sata_port *sata_port = ap->private_data;
6796 struct ipr_resource_entry *res = sata_port->res;
6797 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6798 struct ipr_cmnd *ipr_cmd;
6799 struct ipr_ioarcb *ioarcb;
6800 struct ipr_ioarcb_ata_regs *regs;
6802 if (qc->lldd_task == NULL)
6805 ipr_cmd = qc->lldd_task;
6806 if (ipr_cmd == NULL)
6807 return AC_ERR_SYSTEM;
6809 qc->lldd_task = NULL;
6810 spin_lock(&ipr_cmd->hrrq->_lock);
6811 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6812 ipr_cmd->hrrq->ioa_is_dead)) {
6813 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6814 spin_unlock(&ipr_cmd->hrrq->_lock);
6815 return AC_ERR_SYSTEM;
6818 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
6819 ioarcb = &ipr_cmd->ioarcb;
6821 if (ioa_cfg->sis64) {
6822 regs = &ipr_cmd->i.ata_ioadl.regs;
6823 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6825 regs = &ioarcb->u.add_data.u.regs;
6827 memset(regs, 0, sizeof(*regs));
6828 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6830 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
6832 ipr_cmd->done = ipr_sata_done;
6833 ipr_cmd->ioarcb.res_handle = res->res_handle;
6834 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6835 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6836 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6837 ipr_cmd->dma_use_sg = qc->n_elem;
6840 ipr_build_ata_ioadl64(ipr_cmd, qc);
6842 ipr_build_ata_ioadl(ipr_cmd, qc);
6844 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6845 ipr_copy_sata_tf(regs, &qc->tf);
6846 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6849 switch (qc->tf.protocol) {
6850 case ATA_PROT_NODATA:
6855 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6858 case ATAPI_PROT_PIO:
6859 case ATAPI_PROT_NODATA:
6860 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6863 case ATAPI_PROT_DMA:
6864 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6865 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6870 spin_unlock(&ipr_cmd->hrrq->_lock);
6871 return AC_ERR_INVALID;
6874 ipr_send_command(ipr_cmd);
6875 spin_unlock(&ipr_cmd->hrrq->_lock);
6881 * ipr_qc_fill_rtf - Read result TF
6882 * @qc: ATA queued command
6887 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6889 struct ipr_sata_port *sata_port = qc->ap->private_data;
6890 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6891 struct ata_taskfile *tf = &qc->result_tf;
6893 tf->feature = g->error;
6894 tf->nsect = g->nsect;
6898 tf->device = g->device;
6899 tf->command = g->status;
6900 tf->hob_nsect = g->hob_nsect;
6901 tf->hob_lbal = g->hob_lbal;
6902 tf->hob_lbam = g->hob_lbam;
6903 tf->hob_lbah = g->hob_lbah;
6908 static struct ata_port_operations ipr_sata_ops = {
6909 .phy_reset = ipr_ata_phy_reset,
6910 .hardreset = ipr_sata_reset,
6911 .post_internal_cmd = ipr_ata_post_internal,
6912 .qc_prep = ata_noop_qc_prep,
6913 .qc_defer = ipr_qc_defer,
6914 .qc_issue = ipr_qc_issue,
6915 .qc_fill_rtf = ipr_qc_fill_rtf,
6916 .port_start = ata_sas_port_start,
6917 .port_stop = ata_sas_port_stop
6920 static struct ata_port_info sata_port_info = {
6921 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6923 .pio_mask = ATA_PIO4_ONLY,
6924 .mwdma_mask = ATA_MWDMA2,
6925 .udma_mask = ATA_UDMA6,
6926 .port_ops = &ipr_sata_ops
6929 #ifdef CONFIG_PPC_PSERIES
6930 static const u16 ipr_blocked_processors[] = {
6942 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6943 * @ioa_cfg: ioa cfg struct
6945 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6946 * certain pSeries hardware. This function determines if the given
6947 * adapter is in one of these confgurations or not.
6950 * 1 if adapter is not supported / 0 if adapter is supported
6952 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6956 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6957 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
6958 if (pvr_version_is(ipr_blocked_processors[i]))
6965 #define ipr_invalid_adapter(ioa_cfg) 0
6969 * ipr_ioa_bringdown_done - IOA bring down completion.
6970 * @ipr_cmd: ipr command struct
6972 * This function processes the completion of an adapter bring down.
6973 * It wakes any reset sleepers.
6978 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6980 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6984 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6986 spin_unlock_irq(ioa_cfg->host->host_lock);
6987 scsi_unblock_requests(ioa_cfg->host);
6988 spin_lock_irq(ioa_cfg->host->host_lock);
6991 ioa_cfg->in_reset_reload = 0;
6992 ioa_cfg->reset_retries = 0;
6993 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6994 spin_lock(&ioa_cfg->hrrq[i]._lock);
6995 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6996 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7000 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7001 wake_up_all(&ioa_cfg->reset_wait_q);
7004 return IPR_RC_JOB_RETURN;
7008 * ipr_ioa_reset_done - IOA reset completion.
7009 * @ipr_cmd: ipr command struct
7011 * This function processes the completion of an adapter reset.
7012 * It schedules any necessary mid-layer add/removes and
7013 * wakes any reset sleepers.
7018 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7020 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7021 struct ipr_resource_entry *res;
7022 struct ipr_hostrcb *hostrcb, *temp;
7026 ioa_cfg->in_reset_reload = 0;
7027 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7028 spin_lock(&ioa_cfg->hrrq[j]._lock);
7029 ioa_cfg->hrrq[j].allow_cmds = 1;
7030 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7033 ioa_cfg->reset_cmd = NULL;
7034 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7036 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7037 if (res->add_to_ml || res->del_from_ml) {
7042 schedule_work(&ioa_cfg->work_q);
7044 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7045 list_del(&hostrcb->queue);
7046 if (i++ < IPR_NUM_LOG_HCAMS)
7047 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7049 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7052 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7053 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7055 ioa_cfg->reset_retries = 0;
7056 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7057 wake_up_all(&ioa_cfg->reset_wait_q);
7059 spin_unlock(ioa_cfg->host->host_lock);
7060 scsi_unblock_requests(ioa_cfg->host);
7061 spin_lock(ioa_cfg->host->host_lock);
7063 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
7064 scsi_block_requests(ioa_cfg->host);
7066 schedule_work(&ioa_cfg->work_q);
7068 return IPR_RC_JOB_RETURN;
7072 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7073 * @supported_dev: supported device struct
7074 * @vpids: vendor product id struct
7079 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7080 struct ipr_std_inq_vpids *vpids)
7082 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7083 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7084 supported_dev->num_records = 1;
7085 supported_dev->data_length =
7086 cpu_to_be16(sizeof(struct ipr_supported_device));
7087 supported_dev->reserved = 0;
7091 * ipr_set_supported_devs - Send Set Supported Devices for a device
7092 * @ipr_cmd: ipr command struct
7094 * This function sends a Set Supported Devices to the adapter
7097 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7099 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7101 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7102 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7103 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7104 struct ipr_resource_entry *res = ipr_cmd->u.res;
7106 ipr_cmd->job_step = ipr_ioa_reset_done;
7108 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7109 if (!ipr_is_scsi_disk(res))
7112 ipr_cmd->u.res = res;
7113 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7115 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7116 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7117 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7119 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7120 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7121 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7122 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7124 ipr_init_ioadl(ipr_cmd,
7125 ioa_cfg->vpd_cbs_dma +
7126 offsetof(struct ipr_misc_cbs, supp_dev),
7127 sizeof(struct ipr_supported_device),
7128 IPR_IOADL_FLAGS_WRITE_LAST);
7130 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7131 IPR_SET_SUP_DEVICE_TIMEOUT);
7133 if (!ioa_cfg->sis64)
7134 ipr_cmd->job_step = ipr_set_supported_devs;
7136 return IPR_RC_JOB_RETURN;
7140 return IPR_RC_JOB_CONTINUE;
7144 * ipr_get_mode_page - Locate specified mode page
7145 * @mode_pages: mode page buffer
7146 * @page_code: page code to find
7147 * @len: minimum required length for mode page
7150 * pointer to mode page / NULL on failure
7152 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7153 u32 page_code, u32 len)
7155 struct ipr_mode_page_hdr *mode_hdr;
7159 if (!mode_pages || (mode_pages->hdr.length == 0))
7162 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7163 mode_hdr = (struct ipr_mode_page_hdr *)
7164 (mode_pages->data + mode_pages->hdr.block_desc_len);
7167 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7168 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7172 page_length = (sizeof(struct ipr_mode_page_hdr) +
7173 mode_hdr->page_length);
7174 length -= page_length;
7175 mode_hdr = (struct ipr_mode_page_hdr *)
7176 ((unsigned long)mode_hdr + page_length);
7183 * ipr_check_term_power - Check for term power errors
7184 * @ioa_cfg: ioa config struct
7185 * @mode_pages: IOAFP mode pages buffer
7187 * Check the IOAFP's mode page 28 for term power errors
7192 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7193 struct ipr_mode_pages *mode_pages)
7197 struct ipr_dev_bus_entry *bus;
7198 struct ipr_mode_page28 *mode_page;
7200 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7201 sizeof(struct ipr_mode_page28));
7203 entry_length = mode_page->entry_length;
7205 bus = mode_page->bus;
7207 for (i = 0; i < mode_page->num_entries; i++) {
7208 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7209 dev_err(&ioa_cfg->pdev->dev,
7210 "Term power is absent on scsi bus %d\n",
7214 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7219 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7220 * @ioa_cfg: ioa config struct
7222 * Looks through the config table checking for SES devices. If
7223 * the SES device is in the SES table indicating a maximum SCSI
7224 * bus speed, the speed is limited for the bus.
7229 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7234 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7235 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7236 ioa_cfg->bus_attr[i].bus_width);
7238 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7239 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7244 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7245 * @ioa_cfg: ioa config struct
7246 * @mode_pages: mode page 28 buffer
7248 * Updates mode page 28 based on driver configuration
7253 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7254 struct ipr_mode_pages *mode_pages)
7256 int i, entry_length;
7257 struct ipr_dev_bus_entry *bus;
7258 struct ipr_bus_attributes *bus_attr;
7259 struct ipr_mode_page28 *mode_page;
7261 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7262 sizeof(struct ipr_mode_page28));
7264 entry_length = mode_page->entry_length;
7266 /* Loop for each device bus entry */
7267 for (i = 0, bus = mode_page->bus;
7268 i < mode_page->num_entries;
7269 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7270 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7271 dev_err(&ioa_cfg->pdev->dev,
7272 "Invalid resource address reported: 0x%08X\n",
7273 IPR_GET_PHYS_LOC(bus->res_addr));
7277 bus_attr = &ioa_cfg->bus_attr[i];
7278 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7279 bus->bus_width = bus_attr->bus_width;
7280 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7281 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7282 if (bus_attr->qas_enabled)
7283 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7285 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7290 * ipr_build_mode_select - Build a mode select command
7291 * @ipr_cmd: ipr command struct
7292 * @res_handle: resource handle to send command to
7293 * @parm: Byte 2 of Mode Sense command
7294 * @dma_addr: DMA buffer address
7295 * @xfer_len: data transfer length
7300 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7301 __be32 res_handle, u8 parm,
7302 dma_addr_t dma_addr, u8 xfer_len)
7304 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7306 ioarcb->res_handle = res_handle;
7307 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7308 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7309 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7310 ioarcb->cmd_pkt.cdb[1] = parm;
7311 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7313 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7317 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7318 * @ipr_cmd: ipr command struct
7320 * This function sets up the SCSI bus attributes and sends
7321 * a Mode Select for Page 28 to activate them.
7326 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7329 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7333 ipr_scsi_bus_speed_limit(ioa_cfg);
7334 ipr_check_term_power(ioa_cfg, mode_pages);
7335 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7336 length = mode_pages->hdr.length + 1;
7337 mode_pages->hdr.length = 0;
7339 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7340 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7343 ipr_cmd->job_step = ipr_set_supported_devs;
7344 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7345 struct ipr_resource_entry, queue);
7346 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7349 return IPR_RC_JOB_RETURN;
7353 * ipr_build_mode_sense - Builds a mode sense command
7354 * @ipr_cmd: ipr command struct
7355 * @res: resource entry struct
7356 * @parm: Byte 2 of mode sense command
7357 * @dma_addr: DMA address of mode sense buffer
7358 * @xfer_len: Size of DMA buffer
7363 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7365 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7367 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7369 ioarcb->res_handle = res_handle;
7370 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7371 ioarcb->cmd_pkt.cdb[2] = parm;
7372 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7373 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7375 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7379 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7380 * @ipr_cmd: ipr command struct
7382 * This function handles the failure of an IOA bringup command.
7387 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7389 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7390 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7392 dev_err(&ioa_cfg->pdev->dev,
7393 "0x%02X failed with IOASC: 0x%08X\n",
7394 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7396 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7397 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7398 return IPR_RC_JOB_RETURN;
7402 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7403 * @ipr_cmd: ipr command struct
7405 * This function handles the failure of a Mode Sense to the IOAFP.
7406 * Some adapters do not handle all mode pages.
7409 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7411 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7413 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7414 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7416 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7417 ipr_cmd->job_step = ipr_set_supported_devs;
7418 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7419 struct ipr_resource_entry, queue);
7420 return IPR_RC_JOB_CONTINUE;
7423 return ipr_reset_cmd_failed(ipr_cmd);
7427 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7428 * @ipr_cmd: ipr command struct
7430 * This function send a Page 28 mode sense to the IOA to
7431 * retrieve SCSI bus attributes.
7436 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7438 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7441 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7442 0x28, ioa_cfg->vpd_cbs_dma +
7443 offsetof(struct ipr_misc_cbs, mode_pages),
7444 sizeof(struct ipr_mode_pages));
7446 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7447 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7449 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7452 return IPR_RC_JOB_RETURN;
7456 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7457 * @ipr_cmd: ipr command struct
7459 * This function enables dual IOA RAID support if possible.
7464 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7466 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7467 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7468 struct ipr_mode_page24 *mode_page;
7472 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7473 sizeof(struct ipr_mode_page24));
7476 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7478 length = mode_pages->hdr.length + 1;
7479 mode_pages->hdr.length = 0;
7481 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7482 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7485 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7486 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7489 return IPR_RC_JOB_RETURN;
7493 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7494 * @ipr_cmd: ipr command struct
7496 * This function handles the failure of a Mode Sense to the IOAFP.
7497 * Some adapters do not handle all mode pages.
7500 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7502 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7504 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7506 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7507 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7508 return IPR_RC_JOB_CONTINUE;
7511 return ipr_reset_cmd_failed(ipr_cmd);
7515 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7516 * @ipr_cmd: ipr command struct
7518 * This function send a mode sense to the IOA to retrieve
7519 * the IOA Advanced Function Control mode page.
7524 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7526 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7529 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7530 0x24, ioa_cfg->vpd_cbs_dma +
7531 offsetof(struct ipr_misc_cbs, mode_pages),
7532 sizeof(struct ipr_mode_pages));
7534 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7535 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7537 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7540 return IPR_RC_JOB_RETURN;
7544 * ipr_init_res_table - Initialize the resource table
7545 * @ipr_cmd: ipr command struct
7547 * This function looks through the existing resource table, comparing
7548 * it with the config table. This function will take care of old/new
7549 * devices and schedule adding/removing them from the mid-layer
7553 * IPR_RC_JOB_CONTINUE
7555 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7557 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7558 struct ipr_resource_entry *res, *temp;
7559 struct ipr_config_table_entry_wrapper cfgtew;
7560 int entries, found, flag, i;
7565 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7567 flag = ioa_cfg->u.cfg_table->hdr.flags;
7569 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7570 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7572 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7573 list_move_tail(&res->queue, &old_res);
7576 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7578 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7580 for (i = 0; i < entries; i++) {
7582 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7584 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7587 list_for_each_entry_safe(res, temp, &old_res, queue) {
7588 if (ipr_is_same_device(res, &cfgtew)) {
7589 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7596 if (list_empty(&ioa_cfg->free_res_q)) {
7597 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7602 res = list_entry(ioa_cfg->free_res_q.next,
7603 struct ipr_resource_entry, queue);
7604 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7605 ipr_init_res_entry(res, &cfgtew);
7607 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7608 res->sdev->allow_restart = 1;
7611 ipr_update_res_entry(res, &cfgtew);
7614 list_for_each_entry_safe(res, temp, &old_res, queue) {
7616 res->del_from_ml = 1;
7617 res->res_handle = IPR_INVALID_RES_HANDLE;
7618 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7622 list_for_each_entry_safe(res, temp, &old_res, queue) {
7623 ipr_clear_res_target(res);
7624 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7627 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7628 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7630 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7633 return IPR_RC_JOB_CONTINUE;
7637 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7638 * @ipr_cmd: ipr command struct
7640 * This function sends a Query IOA Configuration command
7641 * to the adapter to retrieve the IOA configuration table.
7646 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7648 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7650 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7651 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7654 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7655 ioa_cfg->dual_raid = 1;
7656 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7657 ucode_vpd->major_release, ucode_vpd->card_type,
7658 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7659 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7660 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7662 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7663 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7664 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7665 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7667 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7668 IPR_IOADL_FLAGS_READ_LAST);
7670 ipr_cmd->job_step = ipr_init_res_table;
7672 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7675 return IPR_RC_JOB_RETURN;
7678 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7680 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7682 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7683 return IPR_RC_JOB_CONTINUE;
7685 return ipr_reset_cmd_failed(ipr_cmd);
7688 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7689 __be32 res_handle, u8 sa_code)
7691 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7693 ioarcb->res_handle = res_handle;
7694 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7695 ioarcb->cmd_pkt.cdb[1] = sa_code;
7696 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7700 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7706 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7708 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7710 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7714 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7716 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7717 ipr_build_ioa_service_action(ipr_cmd,
7718 cpu_to_be32(IPR_IOA_RES_HANDLE),
7719 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7721 ioarcb->cmd_pkt.cdb[2] = 0x40;
7723 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7724 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7725 IPR_SET_SUP_DEVICE_TIMEOUT);
7728 return IPR_RC_JOB_RETURN;
7732 return IPR_RC_JOB_CONTINUE;
7736 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7737 * @ipr_cmd: ipr command struct
7739 * This utility function sends an inquiry to the adapter.
7744 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7745 dma_addr_t dma_addr, u8 xfer_len)
7747 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7750 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7751 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7753 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7754 ioarcb->cmd_pkt.cdb[1] = flags;
7755 ioarcb->cmd_pkt.cdb[2] = page;
7756 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7758 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7760 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7765 * ipr_inquiry_page_supported - Is the given inquiry page supported
7766 * @page0: inquiry page 0 buffer
7769 * This function determines if the specified inquiry page is supported.
7772 * 1 if page is supported / 0 if not
7774 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7778 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7779 if (page0->page[i] == page)
7786 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7787 * @ipr_cmd: ipr command struct
7789 * This function sends a Page 0xC4 inquiry to the adapter
7790 * to retrieve software VPD information.
7793 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7795 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7797 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7798 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7799 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7802 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
7803 memset(pageC4, 0, sizeof(*pageC4));
7805 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7806 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7807 (ioa_cfg->vpd_cbs_dma
7808 + offsetof(struct ipr_misc_cbs,
7810 sizeof(struct ipr_inquiry_pageC4));
7811 return IPR_RC_JOB_RETURN;
7815 return IPR_RC_JOB_CONTINUE;
7819 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7820 * @ipr_cmd: ipr command struct
7822 * This function sends a Page 0xD0 inquiry to the adapter
7823 * to retrieve adapter capabilities.
7826 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7828 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7830 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7831 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7832 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7835 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
7836 memset(cap, 0, sizeof(*cap));
7838 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7839 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7840 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7841 sizeof(struct ipr_inquiry_cap));
7842 return IPR_RC_JOB_RETURN;
7846 return IPR_RC_JOB_CONTINUE;
7850 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7851 * @ipr_cmd: ipr command struct
7853 * This function sends a Page 3 inquiry to the adapter
7854 * to retrieve software VPD information.
7857 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7859 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7861 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7865 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7867 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7868 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7869 sizeof(struct ipr_inquiry_page3));
7872 return IPR_RC_JOB_RETURN;
7876 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7877 * @ipr_cmd: ipr command struct
7879 * This function sends a Page 0 inquiry to the adapter
7880 * to retrieve supported inquiry pages.
7883 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7885 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7887 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7892 /* Grab the type out of the VPD and store it away */
7893 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7895 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7897 if (ipr_invalid_adapter(ioa_cfg)) {
7898 dev_err(&ioa_cfg->pdev->dev,
7899 "Adapter not supported in this hardware configuration.\n");
7901 if (!ipr_testmode) {
7902 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7903 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7904 list_add_tail(&ipr_cmd->queue,
7905 &ioa_cfg->hrrq->hrrq_free_q);
7906 return IPR_RC_JOB_RETURN;
7910 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7912 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7913 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7914 sizeof(struct ipr_inquiry_page0));
7917 return IPR_RC_JOB_RETURN;
7921 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7922 * @ipr_cmd: ipr command struct
7924 * This function sends a standard inquiry to the adapter.
7929 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7934 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7936 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7937 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7938 sizeof(struct ipr_ioa_vpd));
7941 return IPR_RC_JOB_RETURN;
7945 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7946 * @ipr_cmd: ipr command struct
7948 * This function send an Identify Host Request Response Queue
7949 * command to establish the HRRQ with the adapter.
7954 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7956 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7957 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7958 struct ipr_hrr_queue *hrrq;
7961 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7962 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7964 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7965 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
7967 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7968 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7970 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7972 ioarcb->cmd_pkt.cdb[1] = 0x1;
7974 if (ioa_cfg->nvectors == 1)
7975 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7977 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7979 ioarcb->cmd_pkt.cdb[2] =
7980 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7981 ioarcb->cmd_pkt.cdb[3] =
7982 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7983 ioarcb->cmd_pkt.cdb[4] =
7984 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7985 ioarcb->cmd_pkt.cdb[5] =
7986 ((u64) hrrq->host_rrq_dma) & 0xff;
7987 ioarcb->cmd_pkt.cdb[7] =
7988 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7989 ioarcb->cmd_pkt.cdb[8] =
7990 (sizeof(u32) * hrrq->size) & 0xff;
7992 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7993 ioarcb->cmd_pkt.cdb[9] =
7994 ioa_cfg->identify_hrrq_index;
7996 if (ioa_cfg->sis64) {
7997 ioarcb->cmd_pkt.cdb[10] =
7998 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7999 ioarcb->cmd_pkt.cdb[11] =
8000 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8001 ioarcb->cmd_pkt.cdb[12] =
8002 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8003 ioarcb->cmd_pkt.cdb[13] =
8004 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8007 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8008 ioarcb->cmd_pkt.cdb[14] =
8009 ioa_cfg->identify_hrrq_index;
8011 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8012 IPR_INTERNAL_TIMEOUT);
8014 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8015 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8018 return IPR_RC_JOB_RETURN;
8022 return IPR_RC_JOB_CONTINUE;
8026 * ipr_reset_timer_done - Adapter reset timer function
8027 * @ipr_cmd: ipr command struct
8029 * Description: This function is used in adapter reset processing
8030 * for timing events. If the reset_cmd pointer in the IOA
8031 * config struct is not this adapter's we are doing nested
8032 * resets and fail_all_ops will take care of freeing the
8038 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8040 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8041 unsigned long lock_flags = 0;
8043 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8045 if (ioa_cfg->reset_cmd == ipr_cmd) {
8046 list_del(&ipr_cmd->queue);
8047 ipr_cmd->done(ipr_cmd);
8050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8054 * ipr_reset_start_timer - Start a timer for adapter reset job
8055 * @ipr_cmd: ipr command struct
8056 * @timeout: timeout value
8058 * Description: This function is used in adapter reset processing
8059 * for timing events. If the reset_cmd pointer in the IOA
8060 * config struct is not this adapter's we are doing nested
8061 * resets and fail_all_ops will take care of freeing the
8067 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8068 unsigned long timeout)
8072 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8073 ipr_cmd->done = ipr_reset_ioa_job;
8075 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8076 ipr_cmd->timer.expires = jiffies + timeout;
8077 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8078 add_timer(&ipr_cmd->timer);
8082 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8083 * @ioa_cfg: ioa cfg struct
8088 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8090 struct ipr_hrr_queue *hrrq;
8092 for_each_hrrq(hrrq, ioa_cfg) {
8093 spin_lock(&hrrq->_lock);
8094 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8096 /* Initialize Host RRQ pointers */
8097 hrrq->hrrq_start = hrrq->host_rrq;
8098 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8099 hrrq->hrrq_curr = hrrq->hrrq_start;
8100 hrrq->toggle_bit = 1;
8101 spin_unlock(&hrrq->_lock);
8105 ioa_cfg->identify_hrrq_index = 0;
8106 if (ioa_cfg->hrrq_num == 1)
8107 atomic_set(&ioa_cfg->hrrq_index, 0);
8109 atomic_set(&ioa_cfg->hrrq_index, 1);
8111 /* Zero out config table */
8112 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8116 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8117 * @ipr_cmd: ipr command struct
8120 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8122 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8124 unsigned long stage, stage_time;
8126 volatile u32 int_reg;
8127 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8130 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8131 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8132 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8134 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8136 /* sanity check the stage_time value */
8137 if (stage_time == 0)
8138 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8139 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8140 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8141 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8142 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8144 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8145 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8146 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8147 stage_time = ioa_cfg->transop_timeout;
8148 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8149 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8150 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8151 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8152 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8153 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8154 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8155 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8156 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8157 return IPR_RC_JOB_CONTINUE;
8161 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8162 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8163 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8164 ipr_cmd->done = ipr_reset_ioa_job;
8165 add_timer(&ipr_cmd->timer);
8167 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8169 return IPR_RC_JOB_RETURN;
8173 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8174 * @ipr_cmd: ipr command struct
8176 * This function reinitializes some control blocks and
8177 * enables destructive diagnostics on the adapter.
8182 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8184 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8185 volatile u32 int_reg;
8186 volatile u64 maskval;
8190 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8191 ipr_init_ioa_mem(ioa_cfg);
8193 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8194 spin_lock(&ioa_cfg->hrrq[i]._lock);
8195 ioa_cfg->hrrq[i].allow_interrupts = 1;
8196 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8199 if (ioa_cfg->sis64) {
8200 /* Set the adapter to the correct endian mode. */
8201 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8202 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8205 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8207 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8208 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8209 ioa_cfg->regs.clr_interrupt_mask_reg32);
8210 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8211 return IPR_RC_JOB_CONTINUE;
8214 /* Enable destructive diagnostics on IOA */
8215 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8217 if (ioa_cfg->sis64) {
8218 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8219 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8220 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8222 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8224 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8226 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8228 if (ioa_cfg->sis64) {
8229 ipr_cmd->job_step = ipr_reset_next_stage;
8230 return IPR_RC_JOB_CONTINUE;
8233 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8234 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8235 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8236 ipr_cmd->done = ipr_reset_ioa_job;
8237 add_timer(&ipr_cmd->timer);
8238 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8241 return IPR_RC_JOB_RETURN;
8245 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8246 * @ipr_cmd: ipr command struct
8248 * This function is invoked when an adapter dump has run out
8249 * of processing time.
8252 * IPR_RC_JOB_CONTINUE
8254 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8256 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8258 if (ioa_cfg->sdt_state == GET_DUMP)
8259 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8260 else if (ioa_cfg->sdt_state == READ_DUMP)
8261 ioa_cfg->sdt_state = ABORT_DUMP;
8263 ioa_cfg->dump_timeout = 1;
8264 ipr_cmd->job_step = ipr_reset_alert;
8266 return IPR_RC_JOB_CONTINUE;
8270 * ipr_unit_check_no_data - Log a unit check/no data error log
8271 * @ioa_cfg: ioa config struct
8273 * Logs an error indicating the adapter unit checked, but for some
8274 * reason, we were unable to fetch the unit check buffer.
8279 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8281 ioa_cfg->errors_logged++;
8282 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8286 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8287 * @ioa_cfg: ioa config struct
8289 * Fetches the unit check buffer from the adapter by clocking the data
8290 * through the mailbox register.
8295 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8297 unsigned long mailbox;
8298 struct ipr_hostrcb *hostrcb;
8299 struct ipr_uc_sdt sdt;
8303 mailbox = readl(ioa_cfg->ioa_mailbox);
8305 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8306 ipr_unit_check_no_data(ioa_cfg);
8310 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8311 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8312 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8314 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8315 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8316 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8317 ipr_unit_check_no_data(ioa_cfg);
8321 /* Find length of the first sdt entry (UC buffer) */
8322 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8323 length = be32_to_cpu(sdt.entry[0].end_token);
8325 length = (be32_to_cpu(sdt.entry[0].end_token) -
8326 be32_to_cpu(sdt.entry[0].start_token)) &
8327 IPR_FMT2_MBX_ADDR_MASK;
8329 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8330 struct ipr_hostrcb, queue);
8331 list_del(&hostrcb->queue);
8332 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8334 rc = ipr_get_ldump_data_section(ioa_cfg,
8335 be32_to_cpu(sdt.entry[0].start_token),
8336 (__be32 *)&hostrcb->hcam,
8337 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8340 ipr_handle_log_data(ioa_cfg, hostrcb);
8341 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8342 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8343 ioa_cfg->sdt_state == GET_DUMP)
8344 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8346 ipr_unit_check_no_data(ioa_cfg);
8348 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8352 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8353 * @ipr_cmd: ipr command struct
8355 * Description: This function will call to get the unit check buffer.
8360 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8362 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8365 ioa_cfg->ioa_unit_checked = 0;
8366 ipr_get_unit_check_buffer(ioa_cfg);
8367 ipr_cmd->job_step = ipr_reset_alert;
8368 ipr_reset_start_timer(ipr_cmd, 0);
8371 return IPR_RC_JOB_RETURN;
8374 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8376 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8380 if (ioa_cfg->sdt_state != GET_DUMP)
8381 return IPR_RC_JOB_RETURN;
8383 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8384 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8385 IPR_PCII_MAILBOX_STABLE)) {
8387 if (!ipr_cmd->u.time_left)
8388 dev_err(&ioa_cfg->pdev->dev,
8389 "Timed out waiting for Mailbox register.\n");
8391 ioa_cfg->sdt_state = READ_DUMP;
8392 ioa_cfg->dump_timeout = 0;
8394 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8396 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8397 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8398 schedule_work(&ioa_cfg->work_q);
8401 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8402 ipr_reset_start_timer(ipr_cmd,
8403 IPR_CHECK_FOR_RESET_TIMEOUT);
8407 return IPR_RC_JOB_RETURN;
8411 * ipr_reset_restore_cfg_space - Restore PCI config space.
8412 * @ipr_cmd: ipr command struct
8414 * Description: This function restores the saved PCI config space of
8415 * the adapter, fails all outstanding ops back to the callers, and
8416 * fetches the dump/unit check if applicable to this reset.
8419 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8421 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8423 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8427 ioa_cfg->pdev->state_saved = true;
8428 pci_restore_state(ioa_cfg->pdev);
8430 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8431 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8432 return IPR_RC_JOB_CONTINUE;
8435 ipr_fail_all_ops(ioa_cfg);
8437 if (ioa_cfg->sis64) {
8438 /* Set the adapter to the correct endian mode. */
8439 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8440 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8443 if (ioa_cfg->ioa_unit_checked) {
8444 if (ioa_cfg->sis64) {
8445 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8446 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8447 return IPR_RC_JOB_RETURN;
8449 ioa_cfg->ioa_unit_checked = 0;
8450 ipr_get_unit_check_buffer(ioa_cfg);
8451 ipr_cmd->job_step = ipr_reset_alert;
8452 ipr_reset_start_timer(ipr_cmd, 0);
8453 return IPR_RC_JOB_RETURN;
8457 if (ioa_cfg->in_ioa_bringdown) {
8458 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8459 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8460 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8461 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8463 ipr_cmd->job_step = ipr_reset_enable_ioa;
8467 return IPR_RC_JOB_CONTINUE;
8471 * ipr_reset_bist_done - BIST has completed on the adapter.
8472 * @ipr_cmd: ipr command struct
8474 * Description: Unblock config space and resume the reset process.
8477 * IPR_RC_JOB_CONTINUE
8479 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8481 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8484 if (ioa_cfg->cfg_locked)
8485 pci_cfg_access_unlock(ioa_cfg->pdev);
8486 ioa_cfg->cfg_locked = 0;
8487 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8489 return IPR_RC_JOB_CONTINUE;
8493 * ipr_reset_start_bist - Run BIST on the adapter.
8494 * @ipr_cmd: ipr command struct
8496 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8499 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8501 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8503 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8504 int rc = PCIBIOS_SUCCESSFUL;
8507 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8508 writel(IPR_UPROCI_SIS64_START_BIST,
8509 ioa_cfg->regs.set_uproc_interrupt_reg32);
8511 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8513 if (rc == PCIBIOS_SUCCESSFUL) {
8514 ipr_cmd->job_step = ipr_reset_bist_done;
8515 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8516 rc = IPR_RC_JOB_RETURN;
8518 if (ioa_cfg->cfg_locked)
8519 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8520 ioa_cfg->cfg_locked = 0;
8521 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8522 rc = IPR_RC_JOB_CONTINUE;
8530 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8531 * @ipr_cmd: ipr command struct
8533 * Description: This clears PCI reset to the adapter and delays two seconds.
8538 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8541 ipr_cmd->job_step = ipr_reset_bist_done;
8542 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8544 return IPR_RC_JOB_RETURN;
8548 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8549 * @work: work struct
8551 * Description: This pulses warm reset to a slot.
8554 static void ipr_reset_reset_work(struct work_struct *work)
8556 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8557 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8558 struct pci_dev *pdev = ioa_cfg->pdev;
8559 unsigned long lock_flags = 0;
8562 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8563 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8564 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8567 if (ioa_cfg->reset_cmd == ipr_cmd)
8568 ipr_reset_ioa_job(ipr_cmd);
8569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8574 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8575 * @ipr_cmd: ipr command struct
8577 * Description: This asserts PCI reset to the adapter.
8582 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8584 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8587 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8588 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8589 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8591 return IPR_RC_JOB_RETURN;
8595 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8596 * @ipr_cmd: ipr command struct
8598 * Description: This attempts to block config access to the IOA.
8601 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8603 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8605 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8606 int rc = IPR_RC_JOB_CONTINUE;
8608 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8609 ioa_cfg->cfg_locked = 1;
8610 ipr_cmd->job_step = ioa_cfg->reset;
8612 if (ipr_cmd->u.time_left) {
8613 rc = IPR_RC_JOB_RETURN;
8614 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8615 ipr_reset_start_timer(ipr_cmd,
8616 IPR_CHECK_FOR_RESET_TIMEOUT);
8618 ipr_cmd->job_step = ioa_cfg->reset;
8619 dev_err(&ioa_cfg->pdev->dev,
8620 "Timed out waiting to lock config access. Resetting anyway.\n");
8628 * ipr_reset_block_config_access - Block config access to the IOA
8629 * @ipr_cmd: ipr command struct
8631 * Description: This attempts to block config access to the IOA
8634 * IPR_RC_JOB_CONTINUE
8636 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8638 ipr_cmd->ioa_cfg->cfg_locked = 0;
8639 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8640 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8641 return IPR_RC_JOB_CONTINUE;
8645 * ipr_reset_allowed - Query whether or not IOA can be reset
8646 * @ioa_cfg: ioa config struct
8649 * 0 if reset not allowed / non-zero if reset is allowed
8651 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8653 volatile u32 temp_reg;
8655 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8656 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8660 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8661 * @ipr_cmd: ipr command struct
8663 * Description: This function waits for adapter permission to run BIST,
8664 * then runs BIST. If the adapter does not give permission after a
8665 * reasonable time, we will reset the adapter anyway. The impact of
8666 * resetting the adapter without warning the adapter is the risk of
8667 * losing the persistent error log on the adapter. If the adapter is
8668 * reset while it is writing to the flash on the adapter, the flash
8669 * segment will have bad ECC and be zeroed.
8672 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8674 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8676 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8677 int rc = IPR_RC_JOB_RETURN;
8679 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8680 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8681 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8683 ipr_cmd->job_step = ipr_reset_block_config_access;
8684 rc = IPR_RC_JOB_CONTINUE;
8691 * ipr_reset_alert - Alert the adapter of a pending reset
8692 * @ipr_cmd: ipr command struct
8694 * Description: This function alerts the adapter that it will be reset.
8695 * If memory space is not currently enabled, proceed directly
8696 * to running BIST on the adapter. The timer must always be started
8697 * so we guarantee we do not run BIST from ipr_isr.
8702 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8704 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8709 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8711 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8712 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8713 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8714 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8716 ipr_cmd->job_step = ipr_reset_block_config_access;
8719 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8720 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8723 return IPR_RC_JOB_RETURN;
8727 * ipr_reset_quiesce_done - Complete IOA disconnect
8728 * @ipr_cmd: ipr command struct
8730 * Description: Freeze the adapter to complete quiesce processing
8733 * IPR_RC_JOB_CONTINUE
8735 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8737 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8740 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8741 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8743 return IPR_RC_JOB_CONTINUE;
8747 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8748 * @ipr_cmd: ipr command struct
8750 * Description: Ensure nothing is outstanding to the IOA and
8751 * proceed with IOA disconnect. Otherwise reset the IOA.
8754 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8756 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8759 struct ipr_cmnd *loop_cmd;
8760 struct ipr_hrr_queue *hrrq;
8761 int rc = IPR_RC_JOB_CONTINUE;
8765 ipr_cmd->job_step = ipr_reset_quiesce_done;
8767 for_each_hrrq(hrrq, ioa_cfg) {
8768 spin_lock(&hrrq->_lock);
8769 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8771 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8772 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8773 rc = IPR_RC_JOB_RETURN;
8776 spin_unlock(&hrrq->_lock);
8787 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8788 * @ipr_cmd: ipr command struct
8790 * Description: Cancel any oustanding HCAMs to the IOA.
8793 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8795 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8797 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8798 int rc = IPR_RC_JOB_CONTINUE;
8799 struct ipr_cmd_pkt *cmd_pkt;
8800 struct ipr_cmnd *hcam_cmd;
8801 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8804 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8806 if (!hrrq->ioa_is_dead) {
8807 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8808 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8809 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8812 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8813 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8814 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8815 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8816 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8817 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8818 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8819 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8820 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8821 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8822 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8823 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8824 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8825 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8827 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8828 IPR_CANCEL_TIMEOUT);
8830 rc = IPR_RC_JOB_RETURN;
8831 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8836 ipr_cmd->job_step = ipr_reset_alert;
8843 * ipr_reset_ucode_download_done - Microcode download completion
8844 * @ipr_cmd: ipr command struct
8846 * Description: This function unmaps the microcode download buffer.
8849 * IPR_RC_JOB_CONTINUE
8851 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8854 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8856 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
8857 sglist->num_sg, DMA_TO_DEVICE);
8859 ipr_cmd->job_step = ipr_reset_alert;
8860 return IPR_RC_JOB_CONTINUE;
8864 * ipr_reset_ucode_download - Download microcode to the adapter
8865 * @ipr_cmd: ipr command struct
8867 * Description: This function checks to see if it there is microcode
8868 * to download to the adapter. If there is, a download is performed.
8871 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8873 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8875 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8876 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8879 ipr_cmd->job_step = ipr_reset_alert;
8882 return IPR_RC_JOB_CONTINUE;
8884 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8885 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8886 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8887 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8888 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8889 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8890 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8893 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8895 ipr_build_ucode_ioadl(ipr_cmd, sglist);
8896 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8898 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8899 IPR_WRITE_BUFFER_TIMEOUT);
8902 return IPR_RC_JOB_RETURN;
8906 * ipr_reset_shutdown_ioa - Shutdown the adapter
8907 * @ipr_cmd: ipr command struct
8909 * Description: This function issues an adapter shutdown of the
8910 * specified type to the specified adapter as part of the
8911 * adapter reset job.
8914 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8916 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8918 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8919 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8920 unsigned long timeout;
8921 int rc = IPR_RC_JOB_CONTINUE;
8924 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8925 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8926 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
8927 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
8928 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8929 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8930 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8931 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8933 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8934 timeout = IPR_SHUTDOWN_TIMEOUT;
8935 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8936 timeout = IPR_INTERNAL_TIMEOUT;
8937 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8938 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
8940 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
8942 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8944 rc = IPR_RC_JOB_RETURN;
8945 ipr_cmd->job_step = ipr_reset_ucode_download;
8947 ipr_cmd->job_step = ipr_reset_alert;
8954 * ipr_reset_ioa_job - Adapter reset job
8955 * @ipr_cmd: ipr command struct
8957 * Description: This function is the job router for the adapter reset job.
8962 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8965 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8968 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8970 if (ioa_cfg->reset_cmd != ipr_cmd) {
8972 * We are doing nested adapter resets and this is
8973 * not the current reset job.
8975 list_add_tail(&ipr_cmd->queue,
8976 &ipr_cmd->hrrq->hrrq_free_q);
8980 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8981 rc = ipr_cmd->job_step_failed(ipr_cmd);
8982 if (rc == IPR_RC_JOB_RETURN)
8986 ipr_reinit_ipr_cmnd(ipr_cmd);
8987 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8988 rc = ipr_cmd->job_step(ipr_cmd);
8989 } while (rc == IPR_RC_JOB_CONTINUE);
8993 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8994 * @ioa_cfg: ioa config struct
8995 * @job_step: first job step of reset job
8996 * @shutdown_type: shutdown type
8998 * Description: This function will initiate the reset of the given adapter
8999 * starting at the selected job step.
9000 * If the caller needs to wait on the completion of the reset,
9001 * the caller must sleep on the reset_wait_q.
9006 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9007 int (*job_step) (struct ipr_cmnd *),
9008 enum ipr_shutdown_type shutdown_type)
9010 struct ipr_cmnd *ipr_cmd;
9013 ioa_cfg->in_reset_reload = 1;
9014 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9015 spin_lock(&ioa_cfg->hrrq[i]._lock);
9016 ioa_cfg->hrrq[i].allow_cmds = 0;
9017 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9020 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9021 scsi_block_requests(ioa_cfg->host);
9023 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9024 ioa_cfg->reset_cmd = ipr_cmd;
9025 ipr_cmd->job_step = job_step;
9026 ipr_cmd->u.shutdown_type = shutdown_type;
9028 ipr_reset_ioa_job(ipr_cmd);
9032 * ipr_initiate_ioa_reset - Initiate an adapter reset
9033 * @ioa_cfg: ioa config struct
9034 * @shutdown_type: shutdown type
9036 * Description: This function will initiate the reset of the given adapter.
9037 * If the caller needs to wait on the completion of the reset,
9038 * the caller must sleep on the reset_wait_q.
9043 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9044 enum ipr_shutdown_type shutdown_type)
9048 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9051 if (ioa_cfg->in_reset_reload) {
9052 if (ioa_cfg->sdt_state == GET_DUMP)
9053 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9054 else if (ioa_cfg->sdt_state == READ_DUMP)
9055 ioa_cfg->sdt_state = ABORT_DUMP;
9058 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9059 dev_err(&ioa_cfg->pdev->dev,
9060 "IOA taken offline - error recovery failed\n");
9062 ioa_cfg->reset_retries = 0;
9063 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9064 spin_lock(&ioa_cfg->hrrq[i]._lock);
9065 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9066 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9070 if (ioa_cfg->in_ioa_bringdown) {
9071 ioa_cfg->reset_cmd = NULL;
9072 ioa_cfg->in_reset_reload = 0;
9073 ipr_fail_all_ops(ioa_cfg);
9074 wake_up_all(&ioa_cfg->reset_wait_q);
9076 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9077 spin_unlock_irq(ioa_cfg->host->host_lock);
9078 scsi_unblock_requests(ioa_cfg->host);
9079 spin_lock_irq(ioa_cfg->host->host_lock);
9083 ioa_cfg->in_ioa_bringdown = 1;
9084 shutdown_type = IPR_SHUTDOWN_NONE;
9088 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9093 * ipr_reset_freeze - Hold off all I/O activity
9094 * @ipr_cmd: ipr command struct
9096 * Description: If the PCI slot is frozen, hold off all I/O
9097 * activity; then, as soon as the slot is available again,
9098 * initiate an adapter reset.
9100 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9102 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9105 /* Disallow new interrupts, avoid loop */
9106 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9107 spin_lock(&ioa_cfg->hrrq[i]._lock);
9108 ioa_cfg->hrrq[i].allow_interrupts = 0;
9109 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9112 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9113 ipr_cmd->done = ipr_reset_ioa_job;
9114 return IPR_RC_JOB_RETURN;
9118 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9119 * @pdev: PCI device struct
9121 * Description: This routine is called to tell us that the MMIO
9122 * access to the IOA has been restored
9124 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9126 unsigned long flags = 0;
9127 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9129 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9130 if (!ioa_cfg->probe_done)
9131 pci_save_state(pdev);
9132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9133 return PCI_ERS_RESULT_NEED_RESET;
9137 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9138 * @pdev: PCI device struct
9140 * Description: This routine is called to tell us that the PCI bus
9141 * is down. Can't do anything here, except put the device driver
9142 * into a holding pattern, waiting for the PCI bus to come back.
9144 static void ipr_pci_frozen(struct pci_dev *pdev)
9146 unsigned long flags = 0;
9147 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9149 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9150 if (ioa_cfg->probe_done)
9151 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9152 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9156 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9157 * @pdev: PCI device struct
9159 * Description: This routine is called by the pci error recovery
9160 * code after the PCI slot has been reset, just before we
9161 * should resume normal operations.
9163 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9165 unsigned long flags = 0;
9166 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9168 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9169 if (ioa_cfg->probe_done) {
9170 if (ioa_cfg->needs_warm_reset)
9171 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9173 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9176 wake_up_all(&ioa_cfg->eeh_wait_q);
9177 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9178 return PCI_ERS_RESULT_RECOVERED;
9182 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9183 * @pdev: PCI device struct
9185 * Description: This routine is called when the PCI bus has
9186 * permanently failed.
9188 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9190 unsigned long flags = 0;
9191 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9194 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9195 if (ioa_cfg->probe_done) {
9196 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9197 ioa_cfg->sdt_state = ABORT_DUMP;
9198 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9199 ioa_cfg->in_ioa_bringdown = 1;
9200 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9201 spin_lock(&ioa_cfg->hrrq[i]._lock);
9202 ioa_cfg->hrrq[i].allow_cmds = 0;
9203 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9206 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9208 wake_up_all(&ioa_cfg->eeh_wait_q);
9209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9213 * ipr_pci_error_detected - Called when a PCI error is detected.
9214 * @pdev: PCI device struct
9215 * @state: PCI channel state
9217 * Description: Called when a PCI error is detected.
9220 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9222 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9223 pci_channel_state_t state)
9226 case pci_channel_io_frozen:
9227 ipr_pci_frozen(pdev);
9228 return PCI_ERS_RESULT_CAN_RECOVER;
9229 case pci_channel_io_perm_failure:
9230 ipr_pci_perm_failure(pdev);
9231 return PCI_ERS_RESULT_DISCONNECT;
9236 return PCI_ERS_RESULT_NEED_RESET;
9240 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9241 * @ioa_cfg: ioa cfg struct
9243 * Description: This is the second phase of adapter intialization
9244 * This function takes care of initilizing the adapter to the point
9245 * where it can accept new commands.
9248 * 0 on success / -EIO on failure
9250 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9253 unsigned long host_lock_flags = 0;
9256 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9257 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9258 ioa_cfg->probe_done = 1;
9259 if (ioa_cfg->needs_hard_reset) {
9260 ioa_cfg->needs_hard_reset = 0;
9261 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9263 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9272 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9273 * @ioa_cfg: ioa config struct
9278 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9282 if (ioa_cfg->ipr_cmnd_list) {
9283 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9284 if (ioa_cfg->ipr_cmnd_list[i])
9285 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9286 ioa_cfg->ipr_cmnd_list[i],
9287 ioa_cfg->ipr_cmnd_list_dma[i]);
9289 ioa_cfg->ipr_cmnd_list[i] = NULL;
9293 if (ioa_cfg->ipr_cmd_pool)
9294 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9296 kfree(ioa_cfg->ipr_cmnd_list);
9297 kfree(ioa_cfg->ipr_cmnd_list_dma);
9298 ioa_cfg->ipr_cmnd_list = NULL;
9299 ioa_cfg->ipr_cmnd_list_dma = NULL;
9300 ioa_cfg->ipr_cmd_pool = NULL;
9304 * ipr_free_mem - Frees memory allocated for an adapter
9305 * @ioa_cfg: ioa cfg struct
9310 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9314 kfree(ioa_cfg->res_entries);
9315 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9316 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9317 ipr_free_cmd_blks(ioa_cfg);
9319 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9320 dma_free_coherent(&ioa_cfg->pdev->dev,
9321 sizeof(u32) * ioa_cfg->hrrq[i].size,
9322 ioa_cfg->hrrq[i].host_rrq,
9323 ioa_cfg->hrrq[i].host_rrq_dma);
9325 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9326 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9328 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9329 dma_free_coherent(&ioa_cfg->pdev->dev,
9330 sizeof(struct ipr_hostrcb),
9331 ioa_cfg->hostrcb[i],
9332 ioa_cfg->hostrcb_dma[i]);
9335 ipr_free_dump(ioa_cfg);
9336 kfree(ioa_cfg->trace);
9340 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9341 * @ioa_cfg: ipr cfg struct
9343 * This function frees all allocated IRQs for the
9344 * specified adapter.
9349 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9351 struct pci_dev *pdev = ioa_cfg->pdev;
9353 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9354 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9356 for (i = 0; i < ioa_cfg->nvectors; i++)
9357 free_irq(ioa_cfg->vectors_info[i].vec,
9360 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9362 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9363 pci_disable_msi(pdev);
9364 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9365 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9366 pci_disable_msix(pdev);
9367 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9372 * ipr_free_all_resources - Free all allocated resources for an adapter.
9373 * @ipr_cmd: ipr command struct
9375 * This function frees all allocated resources for the
9376 * specified adapter.
9381 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9383 struct pci_dev *pdev = ioa_cfg->pdev;
9386 ipr_free_irqs(ioa_cfg);
9387 if (ioa_cfg->reset_work_q)
9388 destroy_workqueue(ioa_cfg->reset_work_q);
9389 iounmap(ioa_cfg->hdw_dma_regs);
9390 pci_release_regions(pdev);
9391 ipr_free_mem(ioa_cfg);
9392 scsi_host_put(ioa_cfg->host);
9393 pci_disable_device(pdev);
9398 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9399 * @ioa_cfg: ioa config struct
9402 * 0 on success / -ENOMEM on allocation failure
9404 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9406 struct ipr_cmnd *ipr_cmd;
9407 struct ipr_ioarcb *ioarcb;
9408 dma_addr_t dma_addr;
9409 int i, entries_each_hrrq, hrrq_id = 0;
9411 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9412 sizeof(struct ipr_cmnd), 512, 0);
9414 if (!ioa_cfg->ipr_cmd_pool)
9417 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9418 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9420 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9421 ipr_free_cmd_blks(ioa_cfg);
9425 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9426 if (ioa_cfg->hrrq_num > 1) {
9428 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9429 ioa_cfg->hrrq[i].min_cmd_id = 0;
9430 ioa_cfg->hrrq[i].max_cmd_id =
9431 (entries_each_hrrq - 1);
9434 IPR_NUM_BASE_CMD_BLKS/
9435 (ioa_cfg->hrrq_num - 1);
9436 ioa_cfg->hrrq[i].min_cmd_id =
9437 IPR_NUM_INTERNAL_CMD_BLKS +
9438 (i - 1) * entries_each_hrrq;
9439 ioa_cfg->hrrq[i].max_cmd_id =
9440 (IPR_NUM_INTERNAL_CMD_BLKS +
9441 i * entries_each_hrrq - 1);
9444 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9445 ioa_cfg->hrrq[i].min_cmd_id = 0;
9446 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9448 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9451 BUG_ON(ioa_cfg->hrrq_num == 0);
9453 i = IPR_NUM_CMD_BLKS -
9454 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9456 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9457 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9460 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9461 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9464 ipr_free_cmd_blks(ioa_cfg);
9468 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9469 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9470 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9472 ioarcb = &ipr_cmd->ioarcb;
9473 ipr_cmd->dma_addr = dma_addr;
9475 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9477 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9479 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9480 if (ioa_cfg->sis64) {
9481 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9482 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9483 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9484 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9486 ioarcb->write_ioadl_addr =
9487 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9488 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9489 ioarcb->ioasa_host_pci_addr =
9490 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9492 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9493 ipr_cmd->cmd_index = i;
9494 ipr_cmd->ioa_cfg = ioa_cfg;
9495 ipr_cmd->sense_buffer_dma = dma_addr +
9496 offsetof(struct ipr_cmnd, sense_buffer);
9498 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9499 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9500 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9501 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9509 * ipr_alloc_mem - Allocate memory for an adapter
9510 * @ioa_cfg: ioa config struct
9513 * 0 on success / non-zero for error
9515 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9517 struct pci_dev *pdev = ioa_cfg->pdev;
9518 int i, rc = -ENOMEM;
9521 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9522 ioa_cfg->max_devs_supported, GFP_KERNEL);
9524 if (!ioa_cfg->res_entries)
9527 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9528 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9529 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9532 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9533 sizeof(struct ipr_misc_cbs),
9534 &ioa_cfg->vpd_cbs_dma,
9537 if (!ioa_cfg->vpd_cbs)
9538 goto out_free_res_entries;
9540 if (ipr_alloc_cmd_blks(ioa_cfg))
9541 goto out_free_vpd_cbs;
9543 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9544 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9545 sizeof(u32) * ioa_cfg->hrrq[i].size,
9546 &ioa_cfg->hrrq[i].host_rrq_dma,
9549 if (!ioa_cfg->hrrq[i].host_rrq) {
9551 dma_free_coherent(&pdev->dev,
9552 sizeof(u32) * ioa_cfg->hrrq[i].size,
9553 ioa_cfg->hrrq[i].host_rrq,
9554 ioa_cfg->hrrq[i].host_rrq_dma);
9555 goto out_ipr_free_cmd_blocks;
9557 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9560 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9561 ioa_cfg->cfg_table_size,
9562 &ioa_cfg->cfg_table_dma,
9565 if (!ioa_cfg->u.cfg_table)
9566 goto out_free_host_rrq;
9568 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9569 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9570 sizeof(struct ipr_hostrcb),
9571 &ioa_cfg->hostrcb_dma[i],
9574 if (!ioa_cfg->hostrcb[i])
9575 goto out_free_hostrcb_dma;
9577 ioa_cfg->hostrcb[i]->hostrcb_dma =
9578 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9579 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9580 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9583 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9584 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9586 if (!ioa_cfg->trace)
9587 goto out_free_hostrcb_dma;
9594 out_free_hostrcb_dma:
9596 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9597 ioa_cfg->hostrcb[i],
9598 ioa_cfg->hostrcb_dma[i]);
9600 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9601 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9603 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9604 dma_free_coherent(&pdev->dev,
9605 sizeof(u32) * ioa_cfg->hrrq[i].size,
9606 ioa_cfg->hrrq[i].host_rrq,
9607 ioa_cfg->hrrq[i].host_rrq_dma);
9609 out_ipr_free_cmd_blocks:
9610 ipr_free_cmd_blks(ioa_cfg);
9612 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9613 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9614 out_free_res_entries:
9615 kfree(ioa_cfg->res_entries);
9620 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9621 * @ioa_cfg: ioa config struct
9626 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9630 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9631 ioa_cfg->bus_attr[i].bus = i;
9632 ioa_cfg->bus_attr[i].qas_enabled = 0;
9633 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9634 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9635 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9637 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9642 * ipr_init_regs - Initialize IOA registers
9643 * @ioa_cfg: ioa config struct
9648 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9650 const struct ipr_interrupt_offsets *p;
9651 struct ipr_interrupts *t;
9654 p = &ioa_cfg->chip_cfg->regs;
9656 base = ioa_cfg->hdw_dma_regs;
9658 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9659 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9660 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9661 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9662 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9663 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9664 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9665 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9666 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9667 t->ioarrin_reg = base + p->ioarrin_reg;
9668 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9669 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9670 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9671 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9672 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9673 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9675 if (ioa_cfg->sis64) {
9676 t->init_feedback_reg = base + p->init_feedback_reg;
9677 t->dump_addr_reg = base + p->dump_addr_reg;
9678 t->dump_data_reg = base + p->dump_data_reg;
9679 t->endian_swap_reg = base + p->endian_swap_reg;
9684 * ipr_init_ioa_cfg - Initialize IOA config struct
9685 * @ioa_cfg: ioa config struct
9686 * @host: scsi host struct
9687 * @pdev: PCI dev struct
9692 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9693 struct Scsi_Host *host, struct pci_dev *pdev)
9697 ioa_cfg->host = host;
9698 ioa_cfg->pdev = pdev;
9699 ioa_cfg->log_level = ipr_log_level;
9700 ioa_cfg->doorbell = IPR_DOORBELL;
9701 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9702 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9703 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9704 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9705 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9706 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9708 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9709 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9710 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9711 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9712 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9713 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9714 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9715 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9716 ioa_cfg->sdt_state = INACTIVE;
9718 ipr_initialize_bus_attr(ioa_cfg);
9719 ioa_cfg->max_devs_supported = ipr_max_devs;
9721 if (ioa_cfg->sis64) {
9722 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9723 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9724 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9725 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9726 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9727 + ((sizeof(struct ipr_config_table_entry64)
9728 * ioa_cfg->max_devs_supported)));
9730 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9731 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9732 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9733 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9734 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9735 + ((sizeof(struct ipr_config_table_entry)
9736 * ioa_cfg->max_devs_supported)));
9739 host->max_channel = IPR_VSET_BUS;
9740 host->unique_id = host->host_no;
9741 host->max_cmd_len = IPR_MAX_CDB_LEN;
9742 host->can_queue = ioa_cfg->max_cmds;
9743 pci_set_drvdata(pdev, ioa_cfg);
9745 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9746 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9747 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9748 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9750 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9752 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9757 * ipr_get_chip_info - Find adapter chip information
9758 * @dev_id: PCI device id struct
9761 * ptr to chip information on success / NULL on failure
9763 static const struct ipr_chip_t *
9764 ipr_get_chip_info(const struct pci_device_id *dev_id)
9768 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9769 if (ipr_chip[i].vendor == dev_id->vendor &&
9770 ipr_chip[i].device == dev_id->device)
9771 return &ipr_chip[i];
9776 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9778 * @ioa_cfg: ioa config struct
9783 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9785 struct pci_dev *pdev = ioa_cfg->pdev;
9787 if (pci_channel_offline(pdev)) {
9788 wait_event_timeout(ioa_cfg->eeh_wait_q,
9789 !pci_channel_offline(pdev),
9790 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9791 pci_restore_state(pdev);
9795 static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9797 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9800 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9801 entries[i].entry = i;
9803 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9804 entries, 1, ipr_number_of_msix);
9806 ipr_wait_for_pci_err_recovery(ioa_cfg);
9810 for (i = 0; i < vectors; i++)
9811 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9812 ioa_cfg->nvectors = vectors;
9817 static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9821 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9823 ipr_wait_for_pci_err_recovery(ioa_cfg);
9827 for (i = 0; i < vectors; i++)
9828 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9829 ioa_cfg->nvectors = vectors;
9834 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9836 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9838 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9839 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9840 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9841 ioa_cfg->vectors_info[vec_idx].
9842 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9846 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9850 for (i = 1; i < ioa_cfg->nvectors; i++) {
9851 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9854 ioa_cfg->vectors_info[i].desc,
9858 free_irq(ioa_cfg->vectors_info[i].vec,
9867 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9868 * @pdev: PCI device struct
9870 * Description: Simply set the msi_received flag to 1 indicating that
9871 * Message Signaled Interrupts are supported.
9874 * 0 on success / non-zero on failure
9876 static irqreturn_t ipr_test_intr(int irq, void *devp)
9878 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9879 unsigned long lock_flags = 0;
9880 irqreturn_t rc = IRQ_HANDLED;
9882 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
9883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9885 ioa_cfg->msi_received = 1;
9886 wake_up(&ioa_cfg->msi_wait_q);
9888 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9893 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9894 * @pdev: PCI device struct
9896 * Description: The return value from pci_enable_msi_range() can not always be
9897 * trusted. This routine sets up and initiates a test interrupt to determine
9898 * if the interrupt is received via the ipr_test_intr() service routine.
9899 * If the tests fails, the driver will fall back to LSI.
9902 * 0 on success / non-zero on failure
9904 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
9907 volatile u32 int_reg;
9908 unsigned long lock_flags = 0;
9912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9913 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9914 ioa_cfg->msi_received = 0;
9915 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9916 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
9917 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9918 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9920 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9921 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9923 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9925 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9927 } else if (ipr_debug)
9928 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9930 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
9931 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9932 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
9933 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9934 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9936 if (!ioa_cfg->msi_received) {
9937 /* MSI test failed */
9938 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9940 } else if (ipr_debug)
9941 dev_info(&pdev->dev, "MSI test succeeded.\n");
9943 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9945 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9946 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9948 free_irq(pdev->irq, ioa_cfg);
9955 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
9956 * @pdev: PCI device struct
9957 * @dev_id: PCI device id struct
9960 * 0 on success / non-zero on failure
9962 static int ipr_probe_ioa(struct pci_dev *pdev,
9963 const struct pci_device_id *dev_id)
9965 struct ipr_ioa_cfg *ioa_cfg;
9966 struct Scsi_Host *host;
9967 unsigned long ipr_regs_pci;
9968 void __iomem *ipr_regs;
9969 int rc = PCIBIOS_SUCCESSFUL;
9970 volatile u32 mask, uproc, interrupts;
9971 unsigned long lock_flags, driver_lock_flags;
9975 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
9976 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9979 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9984 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9985 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
9986 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
9988 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
9990 if (!ioa_cfg->ipr_chip) {
9991 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9992 dev_id->vendor, dev_id->device);
9993 goto out_scsi_host_put;
9996 /* set SIS 32 or SIS 64 */
9997 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
9998 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
9999 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
10000 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10002 if (ipr_transop_timeout)
10003 ioa_cfg->transop_timeout = ipr_transop_timeout;
10004 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10005 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10007 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10009 ioa_cfg->revid = pdev->revision;
10011 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10013 ipr_regs_pci = pci_resource_start(pdev, 0);
10015 rc = pci_request_regions(pdev, IPR_NAME);
10017 dev_err(&pdev->dev,
10018 "Couldn't register memory range of registers\n");
10019 goto out_scsi_host_put;
10022 rc = pci_enable_device(pdev);
10024 if (rc || pci_channel_offline(pdev)) {
10025 if (pci_channel_offline(pdev)) {
10026 ipr_wait_for_pci_err_recovery(ioa_cfg);
10027 rc = pci_enable_device(pdev);
10031 dev_err(&pdev->dev, "Cannot enable adapter\n");
10032 ipr_wait_for_pci_err_recovery(ioa_cfg);
10033 goto out_release_regions;
10037 ipr_regs = pci_ioremap_bar(pdev, 0);
10040 dev_err(&pdev->dev,
10041 "Couldn't map memory range of registers\n");
10046 ioa_cfg->hdw_dma_regs = ipr_regs;
10047 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10048 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10050 ipr_init_regs(ioa_cfg);
10052 if (ioa_cfg->sis64) {
10053 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10055 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10056 rc = dma_set_mask_and_coherent(&pdev->dev,
10060 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10063 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10064 goto cleanup_nomem;
10067 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10068 ioa_cfg->chip_cfg->cache_line_size);
10070 if (rc != PCIBIOS_SUCCESSFUL) {
10071 dev_err(&pdev->dev, "Write of cache line size failed\n");
10072 ipr_wait_for_pci_err_recovery(ioa_cfg);
10074 goto cleanup_nomem;
10077 /* Issue MMIO read to ensure card is not in EEH */
10078 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10079 ipr_wait_for_pci_err_recovery(ioa_cfg);
10081 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10082 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10083 IPR_MAX_MSIX_VECTORS);
10084 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10087 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10088 ipr_enable_msix(ioa_cfg) == 0)
10089 ioa_cfg->intr_flag = IPR_USE_MSIX;
10090 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10091 ipr_enable_msi(ioa_cfg) == 0)
10092 ioa_cfg->intr_flag = IPR_USE_MSI;
10094 ioa_cfg->intr_flag = IPR_USE_LSI;
10095 ioa_cfg->nvectors = 1;
10096 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10099 pci_set_master(pdev);
10101 if (pci_channel_offline(pdev)) {
10102 ipr_wait_for_pci_err_recovery(ioa_cfg);
10103 pci_set_master(pdev);
10104 if (pci_channel_offline(pdev)) {
10106 goto out_msi_disable;
10110 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10111 ioa_cfg->intr_flag == IPR_USE_MSIX) {
10112 rc = ipr_test_msi(ioa_cfg, pdev);
10113 if (rc == -EOPNOTSUPP) {
10114 ipr_wait_for_pci_err_recovery(ioa_cfg);
10115 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10116 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10117 pci_disable_msi(pdev);
10118 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10119 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10120 pci_disable_msix(pdev);
10123 ioa_cfg->intr_flag = IPR_USE_LSI;
10124 ioa_cfg->nvectors = 1;
10127 goto out_msi_disable;
10129 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10130 dev_info(&pdev->dev,
10131 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10132 ioa_cfg->nvectors, pdev->irq);
10133 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10134 dev_info(&pdev->dev,
10135 "Request for %d MSIXs succeeded.",
10136 ioa_cfg->nvectors);
10140 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10141 (unsigned int)num_online_cpus(),
10142 (unsigned int)IPR_MAX_HRRQ_NUM);
10144 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10145 goto out_msi_disable;
10147 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10148 goto out_msi_disable;
10150 rc = ipr_alloc_mem(ioa_cfg);
10152 dev_err(&pdev->dev,
10153 "Couldn't allocate enough memory for device driver!\n");
10154 goto out_msi_disable;
10157 /* Save away PCI config space for use following IOA reset */
10158 rc = pci_save_state(pdev);
10160 if (rc != PCIBIOS_SUCCESSFUL) {
10161 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10163 goto cleanup_nolog;
10167 * If HRRQ updated interrupt is not masked, or reset alert is set,
10168 * the card is in an unknown state and needs a hard reset
10170 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10171 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10172 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10173 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10174 ioa_cfg->needs_hard_reset = 1;
10175 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10176 ioa_cfg->needs_hard_reset = 1;
10177 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10178 ioa_cfg->ioa_unit_checked = 1;
10180 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10181 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10184 if (ioa_cfg->intr_flag == IPR_USE_MSI
10185 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10186 name_msi_vectors(ioa_cfg);
10187 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10189 ioa_cfg->vectors_info[0].desc,
10190 &ioa_cfg->hrrq[0]);
10192 rc = ipr_request_other_msi_irqs(ioa_cfg);
10194 rc = request_irq(pdev->irq, ipr_isr,
10196 IPR_NAME, &ioa_cfg->hrrq[0]);
10199 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10201 goto cleanup_nolog;
10204 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10205 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10206 ioa_cfg->needs_warm_reset = 1;
10207 ioa_cfg->reset = ipr_reset_slot_reset;
10209 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10210 WQ_MEM_RECLAIM, host->host_no);
10212 if (!ioa_cfg->reset_work_q) {
10213 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10217 ioa_cfg->reset = ipr_reset_start_bist;
10219 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10220 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10221 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10228 ipr_free_irqs(ioa_cfg);
10230 ipr_free_mem(ioa_cfg);
10232 ipr_wait_for_pci_err_recovery(ioa_cfg);
10233 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10234 pci_disable_msi(pdev);
10235 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10236 pci_disable_msix(pdev);
10240 pci_disable_device(pdev);
10241 out_release_regions:
10242 pci_release_regions(pdev);
10244 scsi_host_put(host);
10249 * ipr_initiate_ioa_bringdown - Bring down an adapter
10250 * @ioa_cfg: ioa config struct
10251 * @shutdown_type: shutdown type
10253 * Description: This function will initiate bringing down the adapter.
10254 * This consists of issuing an IOA shutdown to the adapter
10255 * to flush the cache, and running BIST.
10256 * If the caller needs to wait on the completion of the reset,
10257 * the caller must sleep on the reset_wait_q.
10262 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10263 enum ipr_shutdown_type shutdown_type)
10266 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10267 ioa_cfg->sdt_state = ABORT_DUMP;
10268 ioa_cfg->reset_retries = 0;
10269 ioa_cfg->in_ioa_bringdown = 1;
10270 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10275 * __ipr_remove - Remove a single adapter
10276 * @pdev: pci device struct
10278 * Adapter hot plug remove entry point.
10283 static void __ipr_remove(struct pci_dev *pdev)
10285 unsigned long host_lock_flags = 0;
10286 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10288 unsigned long driver_lock_flags;
10291 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10292 while (ioa_cfg->in_reset_reload) {
10293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10295 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10298 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10299 spin_lock(&ioa_cfg->hrrq[i]._lock);
10300 ioa_cfg->hrrq[i].removing_ioa = 1;
10301 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10304 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10307 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10308 flush_work(&ioa_cfg->work_q);
10309 if (ioa_cfg->reset_work_q)
10310 flush_workqueue(ioa_cfg->reset_work_q);
10311 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10312 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10314 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10315 list_del(&ioa_cfg->queue);
10316 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10318 if (ioa_cfg->sdt_state == ABORT_DUMP)
10319 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10320 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10322 ipr_free_all_resources(ioa_cfg);
10328 * ipr_remove - IOA hot plug remove entry point
10329 * @pdev: pci device struct
10331 * Adapter hot plug remove entry point.
10336 static void ipr_remove(struct pci_dev *pdev)
10338 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10342 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10344 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10346 scsi_remove_host(ioa_cfg->host);
10348 __ipr_remove(pdev);
10354 * ipr_probe - Adapter hot plug add entry point
10357 * 0 on success / non-zero on failure
10359 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10361 struct ipr_ioa_cfg *ioa_cfg;
10364 rc = ipr_probe_ioa(pdev, dev_id);
10369 ioa_cfg = pci_get_drvdata(pdev);
10370 rc = ipr_probe_ioa_part2(ioa_cfg);
10373 __ipr_remove(pdev);
10377 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10380 __ipr_remove(pdev);
10384 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10388 scsi_remove_host(ioa_cfg->host);
10389 __ipr_remove(pdev);
10393 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10397 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10399 scsi_remove_host(ioa_cfg->host);
10400 __ipr_remove(pdev);
10404 scsi_scan_host(ioa_cfg->host);
10405 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10407 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10408 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10409 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10410 ioa_cfg->iopoll_weight, ipr_iopoll);
10411 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10415 schedule_work(&ioa_cfg->work_q);
10420 * ipr_shutdown - Shutdown handler.
10421 * @pdev: pci device struct
10423 * This function is invoked upon system shutdown/reboot. It will issue
10424 * an adapter shutdown to the adapter to flush the write cache.
10429 static void ipr_shutdown(struct pci_dev *pdev)
10431 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10432 unsigned long lock_flags = 0;
10433 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10436 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10437 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10438 ioa_cfg->iopoll_weight = 0;
10439 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10440 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10443 while (ioa_cfg->in_reset_reload) {
10444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10445 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10446 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10449 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10450 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10452 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10454 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10455 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10456 ipr_free_irqs(ioa_cfg);
10457 pci_disable_device(ioa_cfg->pdev);
10461 static struct pci_device_id ipr_pci_table[] = {
10462 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10463 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10464 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10465 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10466 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10467 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10468 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10469 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10470 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10471 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10472 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10473 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10474 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10475 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10476 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10477 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10478 IPR_USE_LONG_TRANSOP_TIMEOUT },
10479 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10480 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10481 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10482 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10483 IPR_USE_LONG_TRANSOP_TIMEOUT },
10484 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10485 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10486 IPR_USE_LONG_TRANSOP_TIMEOUT },
10487 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10488 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10489 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10490 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10491 IPR_USE_LONG_TRANSOP_TIMEOUT},
10492 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10493 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10494 IPR_USE_LONG_TRANSOP_TIMEOUT },
10495 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10496 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10497 IPR_USE_LONG_TRANSOP_TIMEOUT },
10498 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10499 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10500 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10501 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10502 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10503 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10504 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10505 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10506 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10507 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10508 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10509 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10510 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10511 IPR_USE_LONG_TRANSOP_TIMEOUT },
10512 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10513 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10514 IPR_USE_LONG_TRANSOP_TIMEOUT },
10515 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10516 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10517 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10518 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10519 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10520 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10521 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10522 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10523 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10524 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10525 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10526 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10527 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10528 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10529 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10530 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10531 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10532 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10533 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10534 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10535 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10536 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10537 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10538 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10539 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10540 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10541 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10542 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10543 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10544 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10545 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10546 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10547 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10548 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10549 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10550 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10551 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10552 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10553 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10554 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10555 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10556 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10557 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10558 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10559 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10560 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10561 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10562 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10563 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10564 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10565 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10566 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10569 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10571 static const struct pci_error_handlers ipr_err_handler = {
10572 .error_detected = ipr_pci_error_detected,
10573 .mmio_enabled = ipr_pci_mmio_enabled,
10574 .slot_reset = ipr_pci_slot_reset,
10577 static struct pci_driver ipr_driver = {
10579 .id_table = ipr_pci_table,
10580 .probe = ipr_probe,
10581 .remove = ipr_remove,
10582 .shutdown = ipr_shutdown,
10583 .err_handler = &ipr_err_handler,
10587 * ipr_halt_done - Shutdown prepare completion
10592 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10594 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10598 * ipr_halt - Issue shutdown prepare to all adapters
10601 * NOTIFY_OK on success / NOTIFY_DONE on failure
10603 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10605 struct ipr_cmnd *ipr_cmd;
10606 struct ipr_ioa_cfg *ioa_cfg;
10607 unsigned long flags = 0, driver_lock_flags;
10609 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10610 return NOTIFY_DONE;
10612 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10614 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10615 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10616 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10617 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10618 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10622 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10623 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10624 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10625 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10626 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10628 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10629 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10631 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10636 static struct notifier_block ipr_notifier = {
10641 * ipr_init - Module entry point
10644 * 0 on success / negative value on failure
10646 static int __init ipr_init(void)
10648 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10649 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10651 register_reboot_notifier(&ipr_notifier);
10652 return pci_register_driver(&ipr_driver);
10656 * ipr_exit - Module unload
10658 * Module unload entry point.
10663 static void __exit ipr_exit(void)
10665 unregister_reboot_notifier(&ipr_notifier);
10666 pci_unregister_driver(&ipr_driver);
10669 module_init(ipr_init);
10670 module_exit(ipr_exit);