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 = 16;
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, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
201 static int ipr_max_bus_speeds[] = {
202 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
205 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
206 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
207 module_param_named(max_speed, ipr_max_speed, uint, 0);
208 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
209 module_param_named(log_level, ipr_log_level, uint, 0);
210 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
211 module_param_named(testmode, ipr_testmode, int, 0);
212 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
213 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
214 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
215 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
216 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
217 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
218 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
219 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
220 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
221 module_param_named(max_devs, ipr_max_devs, int, 0);
222 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
223 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
224 module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
225 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)");
226 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
227 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
228 MODULE_LICENSE("GPL");
229 MODULE_VERSION(IPR_DRIVER_VERSION);
231 /* A constant array of IOASCs/URCs/Error Messages */
233 struct ipr_error_table_t ipr_error_table[] = {
234 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
235 "8155: An unknown error was received"},
237 "Soft underlength error"},
239 "Command to be cancelled not found"},
241 "Qualified success"},
242 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
243 "FFFE: Soft device bus error recovered by the IOA"},
244 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
245 "4101: Soft device bus fabric error"},
246 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
247 "FFFC: Logical block guard error recovered by the device"},
248 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FFFC: Logical block reference tag error recovered by the device"},
250 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered scatter list tag / sequence number error"},
252 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
254 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
255 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
256 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
257 "FFFD: Recovered logical block reference tag error detected by the IOA"},
258 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
259 "FFFD: Logical block guard error recovered by the IOA"},
260 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
261 "FFF9: Device sector reassign successful"},
262 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
263 "FFF7: Media error recovered by device rewrite procedures"},
264 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
265 "7001: IOA sector reassignment successful"},
266 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
267 "FFF9: Soft media error. Sector reassignment recommended"},
268 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
269 "FFF7: Media error recovered by IOA rewrite procedures"},
270 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
271 "FF3D: Soft PCI bus error recovered by the IOA"},
272 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
273 "FFF6: Device hardware error recovered by the IOA"},
274 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
275 "FFF6: Device hardware error recovered by the device"},
276 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
277 "FF3D: Soft IOA error recovered by the IOA"},
278 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
279 "FFFA: Undefined device response recovered by the IOA"},
280 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
281 "FFF6: Device bus error, message or command phase"},
282 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
283 "FFFE: Task Management Function failed"},
284 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
285 "FFF6: Failure prediction threshold exceeded"},
286 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
287 "8009: Impending cache battery pack failure"},
289 "Logical Unit in process of becoming ready"},
291 "Initializing command required"},
293 "34FF: Disk device format in progress"},
295 "Logical unit not accessible, target port in unavailable state"},
296 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
297 "9070: IOA requested reset"},
299 "Synchronization required"},
301 "IOA microcode download required"},
303 "Device bus connection is prohibited by host"},
305 "No ready, IOA shutdown"},
307 "Not ready, IOA has been shutdown"},
308 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
309 "3020: Storage subsystem configuration error"},
311 "FFF5: Medium error, data unreadable, recommend reassign"},
313 "7000: Medium error, data unreadable, do not reassign"},
314 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
315 "FFF3: Disk media format bad"},
316 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
317 "3002: Addressed device failed to respond to selection"},
318 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
319 "3100: Device bus error"},
320 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
321 "3109: IOA timed out a device command"},
323 "3120: SCSI bus is not operational"},
324 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
325 "4100: Hard device bus fabric error"},
326 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
327 "310C: Logical block guard error detected by the device"},
328 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
329 "310C: Logical block reference tag error detected by the device"},
330 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Scatter list tag / sequence number error"},
332 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
333 "8150: Logical block CRC error on IOA to Host transfer"},
334 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
335 "4170: Logical block sequence number error on IOA to Host transfer"},
336 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
337 "310D: Logical block reference tag error detected by the IOA"},
338 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
339 "310D: Logical block guard error detected by the IOA"},
340 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
341 "9000: IOA reserved area data check"},
342 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
343 "9001: IOA reserved area invalid data pattern"},
344 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
345 "9002: IOA reserved area LRC error"},
346 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
347 "Hardware Error, IOA metadata access error"},
348 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
349 "102E: Out of alternate sectors for disk storage"},
350 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
351 "FFF4: Data transfer underlength error"},
352 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
353 "FFF4: Data transfer overlength error"},
354 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
355 "3400: Logical unit failure"},
356 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
357 "FFF4: Device microcode is corrupt"},
358 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
359 "8150: PCI bus error"},
361 "Unsupported device bus message received"},
362 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
363 "FFF4: Disk device problem"},
364 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
365 "8150: Permanent IOA failure"},
366 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
367 "3010: Disk device returned wrong response to IOA"},
368 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
369 "8151: IOA microcode error"},
371 "Device bus status error"},
372 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
373 "8157: IOA error requiring IOA reset to recover"},
375 "ATA device status error"},
377 "Message reject received from the device"},
378 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
379 "8008: A permanent cache battery pack failure occurred"},
380 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
381 "9090: Disk unit has been modified after the last known status"},
382 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
383 "9081: IOA detected device error"},
384 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
385 "9082: IOA detected device error"},
386 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
387 "3110: Device bus error, message or command phase"},
388 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
389 "3110: SAS Command / Task Management Function failed"},
390 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
391 "9091: Incorrect hardware configuration change has been detected"},
392 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
393 "9073: Invalid multi-adapter configuration"},
394 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
395 "4010: Incorrect connection between cascaded expanders"},
396 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
397 "4020: Connections exceed IOA design limits"},
398 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
399 "4030: Incorrect multipath connection"},
400 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
401 "4110: Unsupported enclosure function"},
402 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
403 "4120: SAS cable VPD cannot be read"},
404 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
405 "FFF4: Command to logical unit failed"},
407 "Illegal request, invalid request type or request packet"},
409 "Illegal request, invalid resource handle"},
411 "Illegal request, commands not allowed to this device"},
413 "Illegal request, command not allowed to a secondary adapter"},
415 "Illegal request, command not allowed to a non-optimized resource"},
417 "Illegal request, invalid field in parameter list"},
419 "Illegal request, parameter not supported"},
421 "Illegal request, parameter value invalid"},
423 "Illegal request, command sequence error"},
425 "Illegal request, dual adapter support not enabled"},
427 "Illegal request, another cable connector was physically disabled"},
429 "Illegal request, inconsistent group id/group count"},
430 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
431 "9031: Array protection temporarily suspended, protection resuming"},
432 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
433 "9040: Array protection temporarily suspended, protection resuming"},
434 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
435 "4080: IOA exceeded maximum operating temperature"},
436 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4085: Service required"},
438 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
439 "3140: Device bus not ready to ready transition"},
440 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
441 "FFFB: SCSI bus was reset"},
443 "FFFE: SCSI bus transition to single ended"},
445 "FFFE: SCSI bus transition to LVD"},
446 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
447 "FFFB: SCSI bus was reset by another initiator"},
448 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
449 "3029: A device replacement has occurred"},
450 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
451 "4102: Device bus fabric performance degradation"},
452 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
453 "9051: IOA cache data exists for a missing or failed device"},
454 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
455 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
456 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
457 "9025: Disk unit is not supported at its physical location"},
458 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
459 "3020: IOA detected a SCSI bus configuration error"},
460 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
461 "3150: SCSI bus configuration error"},
462 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
463 "9074: Asymmetric advanced function disk configuration"},
464 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
465 "4040: Incomplete multipath connection between IOA and enclosure"},
466 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
467 "4041: Incomplete multipath connection between enclosure and device"},
468 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
469 "9075: Incomplete multipath connection between IOA and remote IOA"},
470 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
471 "9076: Configuration error, missing remote IOA"},
472 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
473 "4050: Enclosure does not support a required multipath function"},
474 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4121: Configuration error, required cable is missing"},
476 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4122: Cable is not plugged into the correct location on remote IOA"},
478 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4123: Configuration error, invalid cable vital product data"},
480 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "4124: Configuration error, both cable ends are plugged into the same IOA"},
482 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
483 "4070: Logically bad block written on device"},
484 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
485 "9041: Array protection temporarily suspended"},
486 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
487 "9042: Corrupt array parity detected on specified device"},
488 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
489 "9030: Array no longer protected due to missing or failed disk unit"},
490 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
491 "9071: Link operational transition"},
492 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
493 "9072: Link not operational transition"},
494 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
495 "9032: Array exposed but still protected"},
496 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
497 "70DD: Device forced failed by disrupt device command"},
498 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
499 "4061: Multipath redundancy level got better"},
500 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
501 "4060: Multipath redundancy level got worse"},
502 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
503 "9083: Device raw mode enabled"},
504 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
505 "9084: Device raw mode disabled"},
507 "Failure due to other device"},
508 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
509 "9008: IOA does not support functions expected by devices"},
510 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
511 "9010: Cache data associated with attached devices cannot be found"},
512 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
513 "9011: Cache data belongs to devices other than those attached"},
514 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
515 "9020: Array missing 2 or more devices with only 1 device present"},
516 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
517 "9021: Array missing 2 or more devices with 2 or more devices present"},
518 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
519 "9022: Exposed array is missing a required device"},
520 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
521 "9023: Array member(s) not at required physical locations"},
522 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
523 "9024: Array not functional due to present hardware configuration"},
524 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
525 "9026: Array not functional due to present hardware configuration"},
526 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
527 "9027: Array is missing a device and parity is out of sync"},
528 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
529 "9028: Maximum number of arrays already exist"},
530 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
531 "9050: Required cache data cannot be located for a disk unit"},
532 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
533 "9052: Cache data exists for a device that has been modified"},
534 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
535 "9054: IOA resources not available due to previous problems"},
536 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
537 "9092: Disk unit requires initialization before use"},
538 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
539 "9029: Incorrect hardware configuration change has been detected"},
540 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
541 "9060: One or more disk pairs are missing from an array"},
542 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
543 "9061: One or more disks are missing from an array"},
544 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
545 "9062: One or more disks are missing from an array"},
546 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
547 "9063: Maximum number of functional arrays has been exceeded"},
549 "Data protect, other volume set problem"},
551 "Aborted command, invalid descriptor"},
553 "Target operating conditions have changed, dual adapter takeover"},
555 "Aborted command, medium removal prevented"},
557 "Command terminated by host"},
559 "Aborted command, command terminated by host"}
562 static const struct ipr_ses_table_entry ipr_ses_table[] = {
563 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
565 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
566 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
567 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
568 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
569 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
571 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
573 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
574 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
575 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
579 * Function Prototypes
581 static int ipr_reset_alert(struct ipr_cmnd *);
582 static void ipr_process_ccn(struct ipr_cmnd *);
583 static void ipr_process_error(struct ipr_cmnd *);
584 static void ipr_reset_ioa_job(struct ipr_cmnd *);
585 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
586 enum ipr_shutdown_type);
588 #ifdef CONFIG_SCSI_IPR_TRACE
590 * ipr_trc_hook - Add a trace entry to the driver trace
591 * @ipr_cmd: ipr command struct
593 * @add_data: additional data
598 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
599 u8 type, u32 add_data)
601 struct ipr_trace_entry *trace_entry;
602 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
603 unsigned int trace_index;
605 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
606 trace_entry = &ioa_cfg->trace[trace_index];
607 trace_entry->time = jiffies;
608 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
609 trace_entry->type = type;
610 if (ipr_cmd->ioa_cfg->sis64)
611 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
613 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
614 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
615 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
616 trace_entry->u.add_data = add_data;
620 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
624 * ipr_lock_and_done - Acquire lock and complete command
625 * @ipr_cmd: ipr command struct
630 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
632 unsigned long lock_flags;
633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
636 ipr_cmd->done(ipr_cmd);
637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
641 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
642 * @ipr_cmd: ipr command struct
647 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
650 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
651 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
652 dma_addr_t dma_addr = ipr_cmd->dma_addr;
655 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
656 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
657 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
658 ioarcb->data_transfer_length = 0;
659 ioarcb->read_data_transfer_length = 0;
660 ioarcb->ioadl_len = 0;
661 ioarcb->read_ioadl_len = 0;
663 if (ipr_cmd->ioa_cfg->sis64) {
664 ioarcb->u.sis64_addr_data.data_ioadl_addr =
665 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
666 ioasa64->u.gata.status = 0;
668 ioarcb->write_ioadl_addr =
669 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
670 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
671 ioasa->u.gata.status = 0;
674 ioasa->hdr.ioasc = 0;
675 ioasa->hdr.residual_data_len = 0;
676 ipr_cmd->scsi_cmd = NULL;
678 ipr_cmd->sense_buffer[0] = 0;
679 ipr_cmd->dma_use_sg = 0;
683 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
684 * @ipr_cmd: ipr command struct
689 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
690 void (*fast_done) (struct ipr_cmnd *))
692 ipr_reinit_ipr_cmnd(ipr_cmd);
693 ipr_cmd->u.scratch = 0;
694 ipr_cmd->sibling = NULL;
695 ipr_cmd->eh_comp = NULL;
696 ipr_cmd->fast_done = fast_done;
697 init_timer(&ipr_cmd->timer);
701 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
702 * @ioa_cfg: ioa config struct
705 * pointer to ipr command struct
708 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
710 struct ipr_cmnd *ipr_cmd = NULL;
712 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
713 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
714 struct ipr_cmnd, queue);
715 list_del(&ipr_cmd->queue);
723 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
724 * @ioa_cfg: ioa config struct
727 * pointer to ipr command struct
730 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
732 struct ipr_cmnd *ipr_cmd =
733 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
734 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
739 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
740 * @ioa_cfg: ioa config struct
741 * @clr_ints: interrupts to clear
743 * This function masks all interrupts on the adapter, then clears the
744 * interrupts specified in the mask
749 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
752 volatile u32 int_reg;
755 /* Stop new interrupts */
756 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
757 spin_lock(&ioa_cfg->hrrq[i]._lock);
758 ioa_cfg->hrrq[i].allow_interrupts = 0;
759 spin_unlock(&ioa_cfg->hrrq[i]._lock);
763 /* Set interrupt mask to stop all new interrupts */
765 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
767 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
769 /* Clear any pending interrupts */
771 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
772 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
773 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
777 * ipr_save_pcix_cmd_reg - Save PCI-X command register
778 * @ioa_cfg: ioa config struct
781 * 0 on success / -EIO on failure
783 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
785 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
787 if (pcix_cmd_reg == 0)
790 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
791 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
792 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
796 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
801 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
802 * @ioa_cfg: ioa config struct
805 * 0 on success / -EIO on failure
807 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
809 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
812 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
813 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
814 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
823 * __ipr_sata_eh_done - done function for aborted SATA commands
824 * @ipr_cmd: ipr command struct
826 * This function is invoked for ops generated to SATA
827 * devices which are being aborted.
832 static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
834 struct ata_queued_cmd *qc = ipr_cmd->qc;
835 struct ipr_sata_port *sata_port = qc->ap->private_data;
837 qc->err_mask |= AC_ERR_OTHER;
838 sata_port->ioasa.status |= ATA_BUSY;
840 if (ipr_cmd->eh_comp)
841 complete(ipr_cmd->eh_comp);
842 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
846 * ipr_sata_eh_done - done function for aborted SATA commands
847 * @ipr_cmd: ipr command struct
849 * This function is invoked for ops generated to SATA
850 * devices which are being aborted.
855 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
857 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
858 unsigned long hrrq_flags;
860 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
861 __ipr_sata_eh_done(ipr_cmd);
862 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
866 * __ipr_scsi_eh_done - mid-layer done function for aborted ops
867 * @ipr_cmd: ipr command struct
869 * This function is invoked by the interrupt handler for
870 * ops generated by the SCSI mid-layer which are being aborted.
875 static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
877 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
879 scsi_cmd->result |= (DID_ERROR << 16);
881 scsi_dma_unmap(ipr_cmd->scsi_cmd);
882 scsi_cmd->scsi_done(scsi_cmd);
883 if (ipr_cmd->eh_comp)
884 complete(ipr_cmd->eh_comp);
885 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
889 * ipr_scsi_eh_done - mid-layer done function for aborted ops
890 * @ipr_cmd: ipr command struct
892 * This function is invoked by the interrupt handler for
893 * ops generated by the SCSI mid-layer which are being aborted.
898 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
900 unsigned long hrrq_flags;
901 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
903 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
904 __ipr_scsi_eh_done(ipr_cmd);
905 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
909 * ipr_fail_all_ops - Fails all outstanding ops.
910 * @ioa_cfg: ioa config struct
912 * This function fails all outstanding ops.
917 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
919 struct ipr_cmnd *ipr_cmd, *temp;
920 struct ipr_hrr_queue *hrrq;
923 for_each_hrrq(hrrq, ioa_cfg) {
924 spin_lock(&hrrq->_lock);
925 list_for_each_entry_safe(ipr_cmd,
926 temp, &hrrq->hrrq_pending_q, queue) {
927 list_del(&ipr_cmd->queue);
929 ipr_cmd->s.ioasa.hdr.ioasc =
930 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
931 ipr_cmd->s.ioasa.hdr.ilid =
932 cpu_to_be32(IPR_DRIVER_ILID);
934 if (ipr_cmd->scsi_cmd)
935 ipr_cmd->done = __ipr_scsi_eh_done;
936 else if (ipr_cmd->qc)
937 ipr_cmd->done = __ipr_sata_eh_done;
939 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
940 IPR_IOASC_IOA_WAS_RESET);
941 del_timer(&ipr_cmd->timer);
942 ipr_cmd->done(ipr_cmd);
944 spin_unlock(&hrrq->_lock);
950 * ipr_send_command - Send driver initiated requests.
951 * @ipr_cmd: ipr command struct
953 * This function sends a command to the adapter using the correct write call.
954 * In the case of sis64, calculate the ioarcb size required. Then or in the
960 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
963 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
965 if (ioa_cfg->sis64) {
966 /* The default size is 256 bytes */
967 send_dma_addr |= 0x1;
969 /* If the number of ioadls * size of ioadl > 128 bytes,
970 then use a 512 byte ioarcb */
971 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
972 send_dma_addr |= 0x4;
973 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
975 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
979 * ipr_do_req - Send driver initiated requests.
980 * @ipr_cmd: ipr command struct
981 * @done: done function
982 * @timeout_func: timeout function
983 * @timeout: timeout value
985 * This function sends the specified command to the adapter with the
986 * timeout given. The done function is invoked on command completion.
991 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
992 void (*done) (struct ipr_cmnd *),
993 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
995 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
997 ipr_cmd->done = done;
999 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
1000 ipr_cmd->timer.expires = jiffies + timeout;
1001 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
1003 add_timer(&ipr_cmd->timer);
1005 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
1007 ipr_send_command(ipr_cmd);
1011 * ipr_internal_cmd_done - Op done function for an internally generated op.
1012 * @ipr_cmd: ipr command struct
1014 * This function is the op done function for an internally generated,
1015 * blocking op. It simply wakes the sleeping thread.
1020 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
1022 if (ipr_cmd->sibling)
1023 ipr_cmd->sibling = NULL;
1025 complete(&ipr_cmd->completion);
1029 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
1030 * @ipr_cmd: ipr command struct
1031 * @dma_addr: dma address
1032 * @len: transfer length
1033 * @flags: ioadl flag value
1035 * This function initializes an ioadl in the case where there is only a single
1041 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1044 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1045 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1047 ipr_cmd->dma_use_sg = 1;
1049 if (ipr_cmd->ioa_cfg->sis64) {
1050 ioadl64->flags = cpu_to_be32(flags);
1051 ioadl64->data_len = cpu_to_be32(len);
1052 ioadl64->address = cpu_to_be64(dma_addr);
1054 ipr_cmd->ioarcb.ioadl_len =
1055 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1056 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1058 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1059 ioadl->address = cpu_to_be32(dma_addr);
1061 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1062 ipr_cmd->ioarcb.read_ioadl_len =
1063 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1064 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1066 ipr_cmd->ioarcb.ioadl_len =
1067 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1068 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1074 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1075 * @ipr_cmd: ipr command struct
1076 * @timeout_func: function to invoke if command times out
1082 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1083 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1088 init_completion(&ipr_cmd->completion);
1089 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1091 spin_unlock_irq(ioa_cfg->host->host_lock);
1092 wait_for_completion(&ipr_cmd->completion);
1093 spin_lock_irq(ioa_cfg->host->host_lock);
1096 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1100 if (ioa_cfg->hrrq_num == 1)
1103 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1104 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1110 * ipr_send_hcam - Send an HCAM to the adapter.
1111 * @ioa_cfg: ioa config struct
1113 * @hostrcb: hostrcb struct
1115 * This function will send a Host Controlled Async command to the adapter.
1116 * If HCAMs are currently not allowed to be issued to the adapter, it will
1117 * place the hostrcb on the free queue.
1122 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1123 struct ipr_hostrcb *hostrcb)
1125 struct ipr_cmnd *ipr_cmd;
1126 struct ipr_ioarcb *ioarcb;
1128 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1129 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1130 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1131 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1133 ipr_cmd->u.hostrcb = hostrcb;
1134 ioarcb = &ipr_cmd->ioarcb;
1136 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1137 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1138 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1139 ioarcb->cmd_pkt.cdb[1] = type;
1140 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1141 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1143 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1144 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1146 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1147 ipr_cmd->done = ipr_process_ccn;
1149 ipr_cmd->done = ipr_process_error;
1151 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1153 ipr_send_command(ipr_cmd);
1155 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1160 * ipr_update_ata_class - Update the ata class in the resource entry
1161 * @res: resource entry struct
1162 * @proto: cfgte device bus protocol value
1167 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1170 case IPR_PROTO_SATA:
1171 case IPR_PROTO_SAS_STP:
1172 res->ata_class = ATA_DEV_ATA;
1174 case IPR_PROTO_SATA_ATAPI:
1175 case IPR_PROTO_SAS_STP_ATAPI:
1176 res->ata_class = ATA_DEV_ATAPI;
1179 res->ata_class = ATA_DEV_UNKNOWN;
1185 * ipr_init_res_entry - Initialize a resource entry struct.
1186 * @res: resource entry struct
1187 * @cfgtew: config table entry wrapper struct
1192 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1193 struct ipr_config_table_entry_wrapper *cfgtew)
1197 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1198 struct ipr_resource_entry *gscsi_res = NULL;
1200 res->needs_sync_complete = 0;
1203 res->del_from_ml = 0;
1204 res->resetting_device = 0;
1205 res->reset_occurred = 0;
1207 res->sata_port = NULL;
1209 if (ioa_cfg->sis64) {
1210 proto = cfgtew->u.cfgte64->proto;
1211 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1212 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1213 res->qmodel = IPR_QUEUEING_MODEL64(res);
1214 res->type = cfgtew->u.cfgte64->res_type;
1216 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1217 sizeof(res->res_path));
1220 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1221 sizeof(res->dev_lun.scsi_lun));
1222 res->lun = scsilun_to_int(&res->dev_lun);
1224 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1225 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1226 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1228 res->target = gscsi_res->target;
1233 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1234 ioa_cfg->max_devs_supported);
1235 set_bit(res->target, ioa_cfg->target_ids);
1237 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1238 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1240 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1241 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1242 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1243 ioa_cfg->max_devs_supported);
1244 set_bit(res->target, ioa_cfg->array_ids);
1245 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1246 res->bus = IPR_VSET_VIRTUAL_BUS;
1247 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1248 ioa_cfg->max_devs_supported);
1249 set_bit(res->target, ioa_cfg->vset_ids);
1251 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1252 ioa_cfg->max_devs_supported);
1253 set_bit(res->target, ioa_cfg->target_ids);
1256 proto = cfgtew->u.cfgte->proto;
1257 res->qmodel = IPR_QUEUEING_MODEL(res);
1258 res->flags = cfgtew->u.cfgte->flags;
1259 if (res->flags & IPR_IS_IOA_RESOURCE)
1260 res->type = IPR_RES_TYPE_IOAFP;
1262 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1264 res->bus = cfgtew->u.cfgte->res_addr.bus;
1265 res->target = cfgtew->u.cfgte->res_addr.target;
1266 res->lun = cfgtew->u.cfgte->res_addr.lun;
1267 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1270 ipr_update_ata_class(res, proto);
1274 * ipr_is_same_device - Determine if two devices are the same.
1275 * @res: resource entry struct
1276 * @cfgtew: config table entry wrapper struct
1279 * 1 if the devices are the same / 0 otherwise
1281 static int ipr_is_same_device(struct ipr_resource_entry *res,
1282 struct ipr_config_table_entry_wrapper *cfgtew)
1284 if (res->ioa_cfg->sis64) {
1285 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1286 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1287 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1288 sizeof(cfgtew->u.cfgte64->lun))) {
1292 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1293 res->target == cfgtew->u.cfgte->res_addr.target &&
1294 res->lun == cfgtew->u.cfgte->res_addr.lun)
1302 * __ipr_format_res_path - Format the resource path for printing.
1303 * @res_path: resource path
1305 * @len: length of buffer provided
1310 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1316 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1317 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1318 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1324 * ipr_format_res_path - Format the resource path for printing.
1325 * @ioa_cfg: ioa config struct
1326 * @res_path: resource path
1328 * @len: length of buffer provided
1333 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1334 u8 *res_path, char *buffer, int len)
1339 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1340 __ipr_format_res_path(res_path, p, len - (buffer - p));
1345 * ipr_update_res_entry - Update the resource entry.
1346 * @res: resource entry struct
1347 * @cfgtew: config table entry wrapper struct
1352 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1353 struct ipr_config_table_entry_wrapper *cfgtew)
1355 char buffer[IPR_MAX_RES_PATH_LENGTH];
1359 if (res->ioa_cfg->sis64) {
1360 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1361 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1362 res->type = cfgtew->u.cfgte64->res_type;
1364 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1365 sizeof(struct ipr_std_inq_data));
1367 res->qmodel = IPR_QUEUEING_MODEL64(res);
1368 proto = cfgtew->u.cfgte64->proto;
1369 res->res_handle = cfgtew->u.cfgte64->res_handle;
1370 res->dev_id = cfgtew->u.cfgte64->dev_id;
1372 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1373 sizeof(res->dev_lun.scsi_lun));
1375 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1376 sizeof(res->res_path))) {
1377 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1378 sizeof(res->res_path));
1382 if (res->sdev && new_path)
1383 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1384 ipr_format_res_path(res->ioa_cfg,
1385 res->res_path, buffer, sizeof(buffer)));
1387 res->flags = cfgtew->u.cfgte->flags;
1388 if (res->flags & IPR_IS_IOA_RESOURCE)
1389 res->type = IPR_RES_TYPE_IOAFP;
1391 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1393 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1394 sizeof(struct ipr_std_inq_data));
1396 res->qmodel = IPR_QUEUEING_MODEL(res);
1397 proto = cfgtew->u.cfgte->proto;
1398 res->res_handle = cfgtew->u.cfgte->res_handle;
1401 ipr_update_ata_class(res, proto);
1405 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1407 * @res: resource entry struct
1408 * @cfgtew: config table entry wrapper struct
1413 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1415 struct ipr_resource_entry *gscsi_res = NULL;
1416 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1418 if (!ioa_cfg->sis64)
1421 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1422 clear_bit(res->target, ioa_cfg->array_ids);
1423 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1424 clear_bit(res->target, ioa_cfg->vset_ids);
1425 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1426 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1427 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1429 clear_bit(res->target, ioa_cfg->target_ids);
1431 } else if (res->bus == 0)
1432 clear_bit(res->target, ioa_cfg->target_ids);
1436 * ipr_handle_config_change - Handle a config change from the adapter
1437 * @ioa_cfg: ioa config struct
1443 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1444 struct ipr_hostrcb *hostrcb)
1446 struct ipr_resource_entry *res = NULL;
1447 struct ipr_config_table_entry_wrapper cfgtew;
1448 __be32 cc_res_handle;
1452 if (ioa_cfg->sis64) {
1453 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1454 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1456 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1457 cc_res_handle = cfgtew.u.cfgte->res_handle;
1460 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1461 if (res->res_handle == cc_res_handle) {
1468 if (list_empty(&ioa_cfg->free_res_q)) {
1469 ipr_send_hcam(ioa_cfg,
1470 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1475 res = list_entry(ioa_cfg->free_res_q.next,
1476 struct ipr_resource_entry, queue);
1478 list_del(&res->queue);
1479 ipr_init_res_entry(res, &cfgtew);
1480 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1483 ipr_update_res_entry(res, &cfgtew);
1485 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1487 res->del_from_ml = 1;
1488 res->res_handle = IPR_INVALID_RES_HANDLE;
1489 schedule_work(&ioa_cfg->work_q);
1491 ipr_clear_res_target(res);
1492 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1494 } else if (!res->sdev || res->del_from_ml) {
1496 schedule_work(&ioa_cfg->work_q);
1499 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1503 * ipr_process_ccn - Op done function for a CCN.
1504 * @ipr_cmd: ipr command struct
1506 * This function is the op done function for a configuration
1507 * change notification host controlled async from the adapter.
1512 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1514 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1515 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1516 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1518 list_del_init(&hostrcb->queue);
1519 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1522 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1523 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1524 dev_err(&ioa_cfg->pdev->dev,
1525 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1527 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1529 ipr_handle_config_change(ioa_cfg, hostrcb);
1534 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1535 * @i: index into buffer
1536 * @buf: string to modify
1538 * This function will strip all trailing whitespace, pad the end
1539 * of the string with a single space, and NULL terminate the string.
1542 * new length of string
1544 static int strip_and_pad_whitespace(int i, char *buf)
1546 while (i && buf[i] == ' ')
1554 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1555 * @prefix: string to print at start of printk
1556 * @hostrcb: hostrcb pointer
1557 * @vpd: vendor/product id/sn struct
1562 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1563 struct ipr_vpd *vpd)
1565 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1568 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1569 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1571 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1572 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1574 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1575 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1577 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1581 * ipr_log_vpd - Log the passed VPD to the error log.
1582 * @vpd: vendor/product id/sn struct
1587 static void ipr_log_vpd(struct ipr_vpd *vpd)
1589 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1590 + IPR_SERIAL_NUM_LEN];
1592 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1593 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1595 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1596 ipr_err("Vendor/Product ID: %s\n", buffer);
1598 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1599 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1600 ipr_err(" Serial Number: %s\n", buffer);
1604 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1605 * @prefix: string to print at start of printk
1606 * @hostrcb: hostrcb pointer
1607 * @vpd: vendor/product id/sn/wwn struct
1612 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1613 struct ipr_ext_vpd *vpd)
1615 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1616 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1617 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1621 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1622 * @vpd: vendor/product id/sn/wwn struct
1627 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1629 ipr_log_vpd(&vpd->vpd);
1630 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1631 be32_to_cpu(vpd->wwid[1]));
1635 * ipr_log_enhanced_cache_error - Log a cache error.
1636 * @ioa_cfg: ioa config struct
1637 * @hostrcb: hostrcb struct
1642 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1643 struct ipr_hostrcb *hostrcb)
1645 struct ipr_hostrcb_type_12_error *error;
1648 error = &hostrcb->hcam.u.error64.u.type_12_error;
1650 error = &hostrcb->hcam.u.error.u.type_12_error;
1652 ipr_err("-----Current Configuration-----\n");
1653 ipr_err("Cache Directory Card Information:\n");
1654 ipr_log_ext_vpd(&error->ioa_vpd);
1655 ipr_err("Adapter Card Information:\n");
1656 ipr_log_ext_vpd(&error->cfc_vpd);
1658 ipr_err("-----Expected Configuration-----\n");
1659 ipr_err("Cache Directory Card Information:\n");
1660 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1661 ipr_err("Adapter Card Information:\n");
1662 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1664 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1665 be32_to_cpu(error->ioa_data[0]),
1666 be32_to_cpu(error->ioa_data[1]),
1667 be32_to_cpu(error->ioa_data[2]));
1671 * ipr_log_cache_error - Log a cache error.
1672 * @ioa_cfg: ioa config struct
1673 * @hostrcb: hostrcb struct
1678 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1679 struct ipr_hostrcb *hostrcb)
1681 struct ipr_hostrcb_type_02_error *error =
1682 &hostrcb->hcam.u.error.u.type_02_error;
1684 ipr_err("-----Current Configuration-----\n");
1685 ipr_err("Cache Directory Card Information:\n");
1686 ipr_log_vpd(&error->ioa_vpd);
1687 ipr_err("Adapter Card Information:\n");
1688 ipr_log_vpd(&error->cfc_vpd);
1690 ipr_err("-----Expected Configuration-----\n");
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1693 ipr_err("Adapter Card Information:\n");
1694 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1696 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1697 be32_to_cpu(error->ioa_data[0]),
1698 be32_to_cpu(error->ioa_data[1]),
1699 be32_to_cpu(error->ioa_data[2]));
1703 * ipr_log_enhanced_config_error - Log a configuration error.
1704 * @ioa_cfg: ioa config struct
1705 * @hostrcb: hostrcb struct
1710 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1711 struct ipr_hostrcb *hostrcb)
1713 int errors_logged, i;
1714 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1715 struct ipr_hostrcb_type_13_error *error;
1717 error = &hostrcb->hcam.u.error.u.type_13_error;
1718 errors_logged = be32_to_cpu(error->errors_logged);
1720 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1721 be32_to_cpu(error->errors_detected), errors_logged);
1723 dev_entry = error->dev;
1725 for (i = 0; i < errors_logged; i++, dev_entry++) {
1728 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
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_sis64_config_error - Log a device error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1750 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1753 int errors_logged, i;
1754 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1755 struct ipr_hostrcb_type_23_error *error;
1756 char buffer[IPR_MAX_RES_PATH_LENGTH];
1758 error = &hostrcb->hcam.u.error64.u.type_23_error;
1759 errors_logged = be32_to_cpu(error->errors_logged);
1761 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1762 be32_to_cpu(error->errors_detected), errors_logged);
1764 dev_entry = error->dev;
1766 for (i = 0; i < errors_logged; i++, dev_entry++) {
1769 ipr_err("Device %d : %s", i + 1,
1770 __ipr_format_res_path(dev_entry->res_path,
1771 buffer, sizeof(buffer)));
1772 ipr_log_ext_vpd(&dev_entry->vpd);
1774 ipr_err("-----New Device Information-----\n");
1775 ipr_log_ext_vpd(&dev_entry->new_vpd);
1777 ipr_err("Cache Directory Card Information:\n");
1778 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1780 ipr_err("Adapter Card Information:\n");
1781 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1786 * ipr_log_config_error - Log a configuration error.
1787 * @ioa_cfg: ioa config struct
1788 * @hostrcb: hostrcb struct
1793 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1794 struct ipr_hostrcb *hostrcb)
1796 int errors_logged, i;
1797 struct ipr_hostrcb_device_data_entry *dev_entry;
1798 struct ipr_hostrcb_type_03_error *error;
1800 error = &hostrcb->hcam.u.error.u.type_03_error;
1801 errors_logged = be32_to_cpu(error->errors_logged);
1803 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1804 be32_to_cpu(error->errors_detected), errors_logged);
1806 dev_entry = error->dev;
1808 for (i = 0; i < errors_logged; i++, dev_entry++) {
1811 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1812 ipr_log_vpd(&dev_entry->vpd);
1814 ipr_err("-----New Device Information-----\n");
1815 ipr_log_vpd(&dev_entry->new_vpd);
1817 ipr_err("Cache Directory Card Information:\n");
1818 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1820 ipr_err("Adapter Card Information:\n");
1821 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1823 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1824 be32_to_cpu(dev_entry->ioa_data[0]),
1825 be32_to_cpu(dev_entry->ioa_data[1]),
1826 be32_to_cpu(dev_entry->ioa_data[2]),
1827 be32_to_cpu(dev_entry->ioa_data[3]),
1828 be32_to_cpu(dev_entry->ioa_data[4]));
1833 * ipr_log_enhanced_array_error - Log an array configuration error.
1834 * @ioa_cfg: ioa config struct
1835 * @hostrcb: hostrcb struct
1840 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1841 struct ipr_hostrcb *hostrcb)
1844 struct ipr_hostrcb_type_14_error *error;
1845 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1846 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1848 error = &hostrcb->hcam.u.error.u.type_14_error;
1852 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1853 error->protection_level,
1854 ioa_cfg->host->host_no,
1855 error->last_func_vset_res_addr.bus,
1856 error->last_func_vset_res_addr.target,
1857 error->last_func_vset_res_addr.lun);
1861 array_entry = error->array_member;
1862 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1863 ARRAY_SIZE(error->array_member));
1865 for (i = 0; i < num_entries; i++, array_entry++) {
1866 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1869 if (be32_to_cpu(error->exposed_mode_adn) == i)
1870 ipr_err("Exposed Array Member %d:\n", i);
1872 ipr_err("Array Member %d:\n", i);
1874 ipr_log_ext_vpd(&array_entry->vpd);
1875 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1876 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1877 "Expected Location");
1884 * ipr_log_array_error - Log an array configuration error.
1885 * @ioa_cfg: ioa config struct
1886 * @hostrcb: hostrcb struct
1891 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1892 struct ipr_hostrcb *hostrcb)
1895 struct ipr_hostrcb_type_04_error *error;
1896 struct ipr_hostrcb_array_data_entry *array_entry;
1897 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1899 error = &hostrcb->hcam.u.error.u.type_04_error;
1903 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1904 error->protection_level,
1905 ioa_cfg->host->host_no,
1906 error->last_func_vset_res_addr.bus,
1907 error->last_func_vset_res_addr.target,
1908 error->last_func_vset_res_addr.lun);
1912 array_entry = error->array_member;
1914 for (i = 0; i < 18; i++) {
1915 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1918 if (be32_to_cpu(error->exposed_mode_adn) == i)
1919 ipr_err("Exposed Array Member %d:\n", i);
1921 ipr_err("Array Member %d:\n", i);
1923 ipr_log_vpd(&array_entry->vpd);
1925 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1926 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1927 "Expected Location");
1932 array_entry = error->array_member2;
1939 * ipr_log_hex_data - Log additional hex IOA error data.
1940 * @ioa_cfg: ioa config struct
1941 * @data: IOA error data
1947 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1954 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1955 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1957 for (i = 0; i < len / 4; i += 4) {
1958 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1959 be32_to_cpu(data[i]),
1960 be32_to_cpu(data[i+1]),
1961 be32_to_cpu(data[i+2]),
1962 be32_to_cpu(data[i+3]));
1967 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1968 * @ioa_cfg: ioa config struct
1969 * @hostrcb: hostrcb struct
1974 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1975 struct ipr_hostrcb *hostrcb)
1977 struct ipr_hostrcb_type_17_error *error;
1980 error = &hostrcb->hcam.u.error64.u.type_17_error;
1982 error = &hostrcb->hcam.u.error.u.type_17_error;
1984 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1985 strim(error->failure_reason);
1987 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1988 be32_to_cpu(hostrcb->hcam.u.error.prc));
1989 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1990 ipr_log_hex_data(ioa_cfg, error->data,
1991 be32_to_cpu(hostrcb->hcam.length) -
1992 (offsetof(struct ipr_hostrcb_error, u) +
1993 offsetof(struct ipr_hostrcb_type_17_error, data)));
1997 * ipr_log_dual_ioa_error - Log a dual adapter error.
1998 * @ioa_cfg: ioa config struct
1999 * @hostrcb: hostrcb struct
2004 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
2005 struct ipr_hostrcb *hostrcb)
2007 struct ipr_hostrcb_type_07_error *error;
2009 error = &hostrcb->hcam.u.error.u.type_07_error;
2010 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2011 strim(error->failure_reason);
2013 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
2014 be32_to_cpu(hostrcb->hcam.u.error.prc));
2015 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
2016 ipr_log_hex_data(ioa_cfg, error->data,
2017 be32_to_cpu(hostrcb->hcam.length) -
2018 (offsetof(struct ipr_hostrcb_error, u) +
2019 offsetof(struct ipr_hostrcb_type_07_error, data)));
2022 static const struct {
2025 } path_active_desc[] = {
2026 { IPR_PATH_NO_INFO, "Path" },
2027 { IPR_PATH_ACTIVE, "Active path" },
2028 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
2031 static const struct {
2034 } path_state_desc[] = {
2035 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
2036 { IPR_PATH_HEALTHY, "is healthy" },
2037 { IPR_PATH_DEGRADED, "is degraded" },
2038 { IPR_PATH_FAILED, "is failed" }
2042 * ipr_log_fabric_path - Log a fabric path error
2043 * @hostrcb: hostrcb struct
2044 * @fabric: fabric descriptor
2049 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2050 struct ipr_hostrcb_fabric_desc *fabric)
2053 u8 path_state = fabric->path_state;
2054 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2055 u8 state = path_state & IPR_PATH_STATE_MASK;
2057 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2058 if (path_active_desc[i].active != active)
2061 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2062 if (path_state_desc[j].state != state)
2065 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2066 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2067 path_active_desc[i].desc, path_state_desc[j].desc,
2069 } else if (fabric->cascaded_expander == 0xff) {
2070 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2071 path_active_desc[i].desc, path_state_desc[j].desc,
2072 fabric->ioa_port, fabric->phy);
2073 } else if (fabric->phy == 0xff) {
2074 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2075 path_active_desc[i].desc, path_state_desc[j].desc,
2076 fabric->ioa_port, fabric->cascaded_expander);
2078 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2079 path_active_desc[i].desc, path_state_desc[j].desc,
2080 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2086 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2087 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2091 * ipr_log64_fabric_path - Log a fabric path error
2092 * @hostrcb: hostrcb struct
2093 * @fabric: fabric descriptor
2098 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2099 struct ipr_hostrcb64_fabric_desc *fabric)
2102 u8 path_state = fabric->path_state;
2103 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2104 u8 state = path_state & IPR_PATH_STATE_MASK;
2105 char buffer[IPR_MAX_RES_PATH_LENGTH];
2107 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2108 if (path_active_desc[i].active != active)
2111 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2112 if (path_state_desc[j].state != state)
2115 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2116 path_active_desc[i].desc, path_state_desc[j].desc,
2117 ipr_format_res_path(hostrcb->ioa_cfg,
2119 buffer, sizeof(buffer)));
2124 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2125 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2126 buffer, sizeof(buffer)));
2129 static const struct {
2132 } path_type_desc[] = {
2133 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2134 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2135 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2136 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2139 static const struct {
2142 } path_status_desc[] = {
2143 { IPR_PATH_CFG_NO_PROB, "Functional" },
2144 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2145 { IPR_PATH_CFG_FAILED, "Failed" },
2146 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2147 { IPR_PATH_NOT_DETECTED, "Missing" },
2148 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2151 static const char *link_rate[] = {
2154 "phy reset problem",
2171 * ipr_log_path_elem - Log a fabric path element.
2172 * @hostrcb: hostrcb struct
2173 * @cfg: fabric path element struct
2178 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2179 struct ipr_hostrcb_config_element *cfg)
2182 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2183 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2185 if (type == IPR_PATH_CFG_NOT_EXIST)
2188 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2189 if (path_type_desc[i].type != type)
2192 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2193 if (path_status_desc[j].status != status)
2196 if (type == IPR_PATH_CFG_IOA_PORT) {
2197 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2198 path_status_desc[j].desc, path_type_desc[i].desc,
2199 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2200 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2202 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2203 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2204 path_status_desc[j].desc, path_type_desc[i].desc,
2205 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2206 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2207 } else if (cfg->cascaded_expander == 0xff) {
2208 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2209 "WWN=%08X%08X\n", path_status_desc[j].desc,
2210 path_type_desc[i].desc, cfg->phy,
2211 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2212 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2213 } else if (cfg->phy == 0xff) {
2214 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2215 "WWN=%08X%08X\n", path_status_desc[j].desc,
2216 path_type_desc[i].desc, cfg->cascaded_expander,
2217 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2218 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2220 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2221 "WWN=%08X%08X\n", path_status_desc[j].desc,
2222 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2223 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2224 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2231 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2232 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2233 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2234 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2238 * ipr_log64_path_elem - Log a fabric path element.
2239 * @hostrcb: hostrcb struct
2240 * @cfg: fabric path element struct
2245 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2246 struct ipr_hostrcb64_config_element *cfg)
2249 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2250 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2251 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2252 char buffer[IPR_MAX_RES_PATH_LENGTH];
2254 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2257 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2258 if (path_type_desc[i].type != type)
2261 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2262 if (path_status_desc[j].status != status)
2265 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2266 path_status_desc[j].desc, path_type_desc[i].desc,
2267 ipr_format_res_path(hostrcb->ioa_cfg,
2268 cfg->res_path, buffer, sizeof(buffer)),
2269 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2270 be32_to_cpu(cfg->wwid[0]),
2271 be32_to_cpu(cfg->wwid[1]));
2275 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2276 "WWN=%08X%08X\n", cfg->type_status,
2277 ipr_format_res_path(hostrcb->ioa_cfg,
2278 cfg->res_path, buffer, sizeof(buffer)),
2279 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2280 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2284 * ipr_log_fabric_error - Log a fabric error.
2285 * @ioa_cfg: ioa config struct
2286 * @hostrcb: hostrcb struct
2291 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2292 struct ipr_hostrcb *hostrcb)
2294 struct ipr_hostrcb_type_20_error *error;
2295 struct ipr_hostrcb_fabric_desc *fabric;
2296 struct ipr_hostrcb_config_element *cfg;
2299 error = &hostrcb->hcam.u.error.u.type_20_error;
2300 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2301 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2303 add_len = be32_to_cpu(hostrcb->hcam.length) -
2304 (offsetof(struct ipr_hostrcb_error, u) +
2305 offsetof(struct ipr_hostrcb_type_20_error, desc));
2307 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2308 ipr_log_fabric_path(hostrcb, fabric);
2309 for_each_fabric_cfg(fabric, cfg)
2310 ipr_log_path_elem(hostrcb, cfg);
2312 add_len -= be16_to_cpu(fabric->length);
2313 fabric = (struct ipr_hostrcb_fabric_desc *)
2314 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2317 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2321 * ipr_log_sis64_array_error - Log a sis64 array error.
2322 * @ioa_cfg: ioa config struct
2323 * @hostrcb: hostrcb struct
2328 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2329 struct ipr_hostrcb *hostrcb)
2332 struct ipr_hostrcb_type_24_error *error;
2333 struct ipr_hostrcb64_array_data_entry *array_entry;
2334 char buffer[IPR_MAX_RES_PATH_LENGTH];
2335 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2337 error = &hostrcb->hcam.u.error64.u.type_24_error;
2341 ipr_err("RAID %s Array Configuration: %s\n",
2342 error->protection_level,
2343 ipr_format_res_path(ioa_cfg, error->last_res_path,
2344 buffer, sizeof(buffer)));
2348 array_entry = error->array_member;
2349 num_entries = min_t(u32, error->num_entries,
2350 ARRAY_SIZE(error->array_member));
2352 for (i = 0; i < num_entries; i++, array_entry++) {
2354 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2357 if (error->exposed_mode_adn == i)
2358 ipr_err("Exposed Array Member %d:\n", i);
2360 ipr_err("Array Member %d:\n", i);
2362 ipr_err("Array Member %d:\n", i);
2363 ipr_log_ext_vpd(&array_entry->vpd);
2364 ipr_err("Current Location: %s\n",
2365 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2366 buffer, sizeof(buffer)));
2367 ipr_err("Expected Location: %s\n",
2368 ipr_format_res_path(ioa_cfg,
2369 array_entry->expected_res_path,
2370 buffer, sizeof(buffer)));
2377 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2378 * @ioa_cfg: ioa config struct
2379 * @hostrcb: hostrcb struct
2384 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2385 struct ipr_hostrcb *hostrcb)
2387 struct ipr_hostrcb_type_30_error *error;
2388 struct ipr_hostrcb64_fabric_desc *fabric;
2389 struct ipr_hostrcb64_config_element *cfg;
2392 error = &hostrcb->hcam.u.error64.u.type_30_error;
2394 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2395 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2397 add_len = be32_to_cpu(hostrcb->hcam.length) -
2398 (offsetof(struct ipr_hostrcb64_error, u) +
2399 offsetof(struct ipr_hostrcb_type_30_error, desc));
2401 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2402 ipr_log64_fabric_path(hostrcb, fabric);
2403 for_each_fabric_cfg(fabric, cfg)
2404 ipr_log64_path_elem(hostrcb, cfg);
2406 add_len -= be16_to_cpu(fabric->length);
2407 fabric = (struct ipr_hostrcb64_fabric_desc *)
2408 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2411 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2415 * ipr_log_generic_error - Log an adapter error.
2416 * @ioa_cfg: ioa config struct
2417 * @hostrcb: hostrcb struct
2422 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2423 struct ipr_hostrcb *hostrcb)
2425 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2426 be32_to_cpu(hostrcb->hcam.length));
2430 * ipr_log_sis64_device_error - Log a cache error.
2431 * @ioa_cfg: ioa config struct
2432 * @hostrcb: hostrcb struct
2437 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2438 struct ipr_hostrcb *hostrcb)
2440 struct ipr_hostrcb_type_21_error *error;
2441 char buffer[IPR_MAX_RES_PATH_LENGTH];
2443 error = &hostrcb->hcam.u.error64.u.type_21_error;
2445 ipr_err("-----Failing Device Information-----\n");
2446 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2447 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2448 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2449 ipr_err("Device Resource Path: %s\n",
2450 __ipr_format_res_path(error->res_path,
2451 buffer, sizeof(buffer)));
2452 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2453 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2454 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2455 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2456 ipr_err("SCSI Sense Data:\n");
2457 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2458 ipr_err("SCSI Command Descriptor Block: \n");
2459 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2461 ipr_err("Additional IOA Data:\n");
2462 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2466 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2469 * This function will return the index of into the ipr_error_table
2470 * for the specified IOASC. If the IOASC is not in the table,
2471 * 0 will be returned, which points to the entry used for unknown errors.
2474 * index into the ipr_error_table
2476 static u32 ipr_get_error(u32 ioasc)
2480 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2481 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2488 * ipr_handle_log_data - Log an adapter error.
2489 * @ioa_cfg: ioa config struct
2490 * @hostrcb: hostrcb struct
2492 * This function logs an adapter error to the system.
2497 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2498 struct ipr_hostrcb *hostrcb)
2502 struct ipr_hostrcb_type_21_error *error;
2504 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2507 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2508 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2511 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2513 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2515 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2516 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2517 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2518 scsi_report_bus_reset(ioa_cfg->host,
2519 hostrcb->hcam.u.error.fd_res_addr.bus);
2522 error_index = ipr_get_error(ioasc);
2524 if (!ipr_error_table[error_index].log_hcam)
2527 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2528 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2529 error = &hostrcb->hcam.u.error64.u.type_21_error;
2531 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2532 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2536 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2538 /* Set indication we have logged an error */
2539 ioa_cfg->errors_logged++;
2541 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2543 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2544 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2546 switch (hostrcb->hcam.overlay_id) {
2547 case IPR_HOST_RCB_OVERLAY_ID_2:
2548 ipr_log_cache_error(ioa_cfg, hostrcb);
2550 case IPR_HOST_RCB_OVERLAY_ID_3:
2551 ipr_log_config_error(ioa_cfg, hostrcb);
2553 case IPR_HOST_RCB_OVERLAY_ID_4:
2554 case IPR_HOST_RCB_OVERLAY_ID_6:
2555 ipr_log_array_error(ioa_cfg, hostrcb);
2557 case IPR_HOST_RCB_OVERLAY_ID_7:
2558 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2560 case IPR_HOST_RCB_OVERLAY_ID_12:
2561 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2563 case IPR_HOST_RCB_OVERLAY_ID_13:
2564 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2566 case IPR_HOST_RCB_OVERLAY_ID_14:
2567 case IPR_HOST_RCB_OVERLAY_ID_16:
2568 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2570 case IPR_HOST_RCB_OVERLAY_ID_17:
2571 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2573 case IPR_HOST_RCB_OVERLAY_ID_20:
2574 ipr_log_fabric_error(ioa_cfg, hostrcb);
2576 case IPR_HOST_RCB_OVERLAY_ID_21:
2577 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2579 case IPR_HOST_RCB_OVERLAY_ID_23:
2580 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2582 case IPR_HOST_RCB_OVERLAY_ID_24:
2583 case IPR_HOST_RCB_OVERLAY_ID_26:
2584 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2586 case IPR_HOST_RCB_OVERLAY_ID_30:
2587 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2589 case IPR_HOST_RCB_OVERLAY_ID_1:
2590 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2592 ipr_log_generic_error(ioa_cfg, hostrcb);
2597 static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
2599 struct ipr_hostrcb *hostrcb;
2601 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
2602 struct ipr_hostrcb, queue);
2604 if (unlikely(!hostrcb)) {
2605 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
2606 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
2607 struct ipr_hostrcb, queue);
2610 list_del_init(&hostrcb->queue);
2615 * ipr_process_error - Op done function for an adapter error log.
2616 * @ipr_cmd: ipr command struct
2618 * This function is the op done function for an error log host
2619 * controlled async from the adapter. It will log the error and
2620 * send the HCAM back to the adapter.
2625 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2628 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2629 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2633 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2635 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2637 list_del_init(&hostrcb->queue);
2638 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2641 ipr_handle_log_data(ioa_cfg, hostrcb);
2642 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2643 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2644 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2645 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2646 dev_err(&ioa_cfg->pdev->dev,
2647 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2650 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
2651 schedule_work(&ioa_cfg->work_q);
2652 hostrcb = ipr_get_free_hostrcb(ioa_cfg);
2654 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2658 * ipr_timeout - An internally generated op has timed out.
2659 * @ipr_cmd: ipr command struct
2661 * This function blocks host requests and initiates an
2667 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2669 unsigned long lock_flags = 0;
2670 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2673 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2675 ioa_cfg->errors_logged++;
2676 dev_err(&ioa_cfg->pdev->dev,
2677 "Adapter being reset due to command timeout.\n");
2679 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2680 ioa_cfg->sdt_state = GET_DUMP;
2682 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2685 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2690 * ipr_oper_timeout - Adapter timed out transitioning to operational
2691 * @ipr_cmd: ipr command struct
2693 * This function blocks host requests and initiates an
2699 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2701 unsigned long lock_flags = 0;
2702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2705 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2707 ioa_cfg->errors_logged++;
2708 dev_err(&ioa_cfg->pdev->dev,
2709 "Adapter timed out transitioning to operational.\n");
2711 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2712 ioa_cfg->sdt_state = GET_DUMP;
2714 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2716 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2717 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2725 * ipr_find_ses_entry - Find matching SES in SES table
2726 * @res: resource entry struct of SES
2729 * pointer to SES table entry / NULL on failure
2731 static const struct ipr_ses_table_entry *
2732 ipr_find_ses_entry(struct ipr_resource_entry *res)
2735 struct ipr_std_inq_vpids *vpids;
2736 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2738 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2739 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2740 if (ste->compare_product_id_byte[j] == 'X') {
2741 vpids = &res->std_inq_data.vpids;
2742 if (vpids->product_id[j] == ste->product_id[j])
2750 if (matches == IPR_PROD_ID_LEN)
2758 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2759 * @ioa_cfg: ioa config struct
2761 * @bus_width: bus width
2764 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2765 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2766 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2767 * max 160MHz = max 320MB/sec).
2769 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2771 struct ipr_resource_entry *res;
2772 const struct ipr_ses_table_entry *ste;
2773 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2775 /* Loop through each config table entry in the config table buffer */
2776 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2777 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2780 if (bus != res->bus)
2783 if (!(ste = ipr_find_ses_entry(res)))
2786 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2789 return max_xfer_rate;
2793 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2794 * @ioa_cfg: ioa config struct
2795 * @max_delay: max delay in micro-seconds to wait
2797 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2800 * 0 on success / other on failure
2802 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2804 volatile u32 pcii_reg;
2807 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2808 while (delay < max_delay) {
2809 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2811 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2814 /* udelay cannot be used if delay is more than a few milliseconds */
2815 if ((delay / 1000) > MAX_UDELAY_MS)
2816 mdelay(delay / 1000);
2826 * ipr_get_sis64_dump_data_section - Dump IOA memory
2827 * @ioa_cfg: ioa config struct
2828 * @start_addr: adapter address to dump
2829 * @dest: destination kernel buffer
2830 * @length_in_words: length to dump in 4 byte words
2835 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2837 __be32 *dest, u32 length_in_words)
2841 for (i = 0; i < length_in_words; i++) {
2842 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2843 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2851 * ipr_get_ldump_data_section - Dump IOA memory
2852 * @ioa_cfg: ioa config struct
2853 * @start_addr: adapter address to dump
2854 * @dest: destination kernel buffer
2855 * @length_in_words: length to dump in 4 byte words
2858 * 0 on success / -EIO on failure
2860 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2862 __be32 *dest, u32 length_in_words)
2864 volatile u32 temp_pcii_reg;
2868 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2869 dest, length_in_words);
2871 /* Write IOA interrupt reg starting LDUMP state */
2872 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2873 ioa_cfg->regs.set_uproc_interrupt_reg32);
2875 /* Wait for IO debug acknowledge */
2876 if (ipr_wait_iodbg_ack(ioa_cfg,
2877 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2878 dev_err(&ioa_cfg->pdev->dev,
2879 "IOA dump long data transfer timeout\n");
2883 /* Signal LDUMP interlocked - clear IO debug ack */
2884 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2885 ioa_cfg->regs.clr_interrupt_reg);
2887 /* Write Mailbox with starting address */
2888 writel(start_addr, ioa_cfg->ioa_mailbox);
2890 /* Signal address valid - clear IOA Reset alert */
2891 writel(IPR_UPROCI_RESET_ALERT,
2892 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2894 for (i = 0; i < length_in_words; i++) {
2895 /* Wait for IO debug acknowledge */
2896 if (ipr_wait_iodbg_ack(ioa_cfg,
2897 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2898 dev_err(&ioa_cfg->pdev->dev,
2899 "IOA dump short data transfer timeout\n");
2903 /* Read data from mailbox and increment destination pointer */
2904 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2907 /* For all but the last word of data, signal data received */
2908 if (i < (length_in_words - 1)) {
2909 /* Signal dump data received - Clear IO debug Ack */
2910 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2911 ioa_cfg->regs.clr_interrupt_reg);
2915 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2916 writel(IPR_UPROCI_RESET_ALERT,
2917 ioa_cfg->regs.set_uproc_interrupt_reg32);
2919 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2920 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2922 /* Signal dump data received - Clear IO debug Ack */
2923 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2924 ioa_cfg->regs.clr_interrupt_reg);
2926 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2927 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2929 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2931 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2941 #ifdef CONFIG_SCSI_IPR_DUMP
2943 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2944 * @ioa_cfg: ioa config struct
2945 * @pci_address: adapter address
2946 * @length: length of data to copy
2948 * Copy data from PCI adapter to kernel buffer.
2949 * Note: length MUST be a 4 byte multiple
2951 * 0 on success / other on failure
2953 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2954 unsigned long pci_address, u32 length)
2956 int bytes_copied = 0;
2957 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2959 unsigned long lock_flags = 0;
2960 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2963 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2965 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2967 while (bytes_copied < length &&
2968 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2969 if (ioa_dump->page_offset >= PAGE_SIZE ||
2970 ioa_dump->page_offset == 0) {
2971 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2975 return bytes_copied;
2978 ioa_dump->page_offset = 0;
2979 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2980 ioa_dump->next_page_index++;
2982 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2984 rem_len = length - bytes_copied;
2985 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2986 cur_len = min(rem_len, rem_page_len);
2988 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2989 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2992 rc = ipr_get_ldump_data_section(ioa_cfg,
2993 pci_address + bytes_copied,
2994 &page[ioa_dump->page_offset / 4],
2995 (cur_len / sizeof(u32)));
2997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3000 ioa_dump->page_offset += cur_len;
3001 bytes_copied += cur_len;
3009 return bytes_copied;
3013 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
3014 * @hdr: dump entry header struct
3019 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
3021 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
3023 hdr->offset = sizeof(*hdr);
3024 hdr->status = IPR_DUMP_STATUS_SUCCESS;
3028 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
3029 * @ioa_cfg: ioa config struct
3030 * @driver_dump: driver dump struct
3035 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
3036 struct ipr_driver_dump *driver_dump)
3038 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3040 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
3041 driver_dump->ioa_type_entry.hdr.len =
3042 sizeof(struct ipr_dump_ioa_type_entry) -
3043 sizeof(struct ipr_dump_entry_header);
3044 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3045 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
3046 driver_dump->ioa_type_entry.type = ioa_cfg->type;
3047 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
3048 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
3049 ucode_vpd->minor_release[1];
3050 driver_dump->hdr.num_entries++;
3054 * ipr_dump_version_data - Fill in the driver version in the dump.
3055 * @ioa_cfg: ioa config struct
3056 * @driver_dump: driver dump struct
3061 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
3062 struct ipr_driver_dump *driver_dump)
3064 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3065 driver_dump->version_entry.hdr.len =
3066 sizeof(struct ipr_dump_version_entry) -
3067 sizeof(struct ipr_dump_entry_header);
3068 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3069 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3070 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3071 driver_dump->hdr.num_entries++;
3075 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3076 * @ioa_cfg: ioa config struct
3077 * @driver_dump: driver dump struct
3082 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3083 struct ipr_driver_dump *driver_dump)
3085 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3086 driver_dump->trace_entry.hdr.len =
3087 sizeof(struct ipr_dump_trace_entry) -
3088 sizeof(struct ipr_dump_entry_header);
3089 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3090 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3091 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3092 driver_dump->hdr.num_entries++;
3096 * ipr_dump_location_data - Fill in the IOA location in the dump.
3097 * @ioa_cfg: ioa config struct
3098 * @driver_dump: driver dump struct
3103 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3104 struct ipr_driver_dump *driver_dump)
3106 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3107 driver_dump->location_entry.hdr.len =
3108 sizeof(struct ipr_dump_location_entry) -
3109 sizeof(struct ipr_dump_entry_header);
3110 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3111 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3112 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3113 driver_dump->hdr.num_entries++;
3117 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3118 * @ioa_cfg: ioa config struct
3119 * @dump: dump struct
3124 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3126 unsigned long start_addr, sdt_word;
3127 unsigned long lock_flags = 0;
3128 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3129 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3130 u32 num_entries, max_num_entries, start_off, end_off;
3131 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3132 struct ipr_sdt *sdt;
3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3140 if (ioa_cfg->sdt_state != READ_DUMP) {
3141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3145 if (ioa_cfg->sis64) {
3146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3147 ssleep(IPR_DUMP_DELAY_SECONDS);
3148 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3151 start_addr = readl(ioa_cfg->ioa_mailbox);
3153 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3154 dev_err(&ioa_cfg->pdev->dev,
3155 "Invalid dump table format: %lx\n", start_addr);
3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3160 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3162 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3164 /* Initialize the overall dump header */
3165 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3166 driver_dump->hdr.num_entries = 1;
3167 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3168 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3169 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3170 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3172 ipr_dump_version_data(ioa_cfg, driver_dump);
3173 ipr_dump_location_data(ioa_cfg, driver_dump);
3174 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3175 ipr_dump_trace_data(ioa_cfg, driver_dump);
3177 /* Update dump_header */
3178 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3180 /* IOA Dump entry */
3181 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3182 ioa_dump->hdr.len = 0;
3183 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3184 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3186 /* First entries in sdt are actually a list of dump addresses and
3187 lengths to gather the real dump data. sdt represents the pointer
3188 to the ioa generated dump table. Dump data will be extracted based
3189 on entries in this table */
3190 sdt = &ioa_dump->sdt;
3192 if (ioa_cfg->sis64) {
3193 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3194 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3196 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3197 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3200 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3201 (max_num_entries * sizeof(struct ipr_sdt_entry));
3202 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3203 bytes_to_copy / sizeof(__be32));
3205 /* Smart Dump table is ready to use and the first entry is valid */
3206 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3207 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3208 dev_err(&ioa_cfg->pdev->dev,
3209 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3210 rc, be32_to_cpu(sdt->hdr.state));
3211 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3212 ioa_cfg->sdt_state = DUMP_OBTAINED;
3213 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3217 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3219 if (num_entries > max_num_entries)
3220 num_entries = max_num_entries;
3222 /* Update dump length to the actual data to be copied */
3223 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3225 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3227 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3231 for (i = 0; i < num_entries; i++) {
3232 if (ioa_dump->hdr.len > max_dump_size) {
3233 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3237 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3238 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3240 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3242 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3243 end_off = be32_to_cpu(sdt->entry[i].end_token);
3245 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3246 bytes_to_copy = end_off - start_off;
3251 if (bytes_to_copy > max_dump_size) {
3252 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3256 /* Copy data from adapter to driver buffers */
3257 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3260 ioa_dump->hdr.len += bytes_copied;
3262 if (bytes_copied != bytes_to_copy) {
3263 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3270 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3272 /* Update dump_header */
3273 driver_dump->hdr.len += ioa_dump->hdr.len;
3275 ioa_cfg->sdt_state = DUMP_OBTAINED;
3280 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3284 * ipr_release_dump - Free adapter dump memory
3285 * @kref: kref struct
3290 static void ipr_release_dump(struct kref *kref)
3292 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3293 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3294 unsigned long lock_flags = 0;
3298 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3299 ioa_cfg->dump = NULL;
3300 ioa_cfg->sdt_state = INACTIVE;
3301 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3304 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3306 vfree(dump->ioa_dump.ioa_data);
3311 static void ipr_add_remove_thread(struct work_struct *work)
3313 unsigned long lock_flags;
3314 struct ipr_resource_entry *res;
3315 struct scsi_device *sdev;
3316 struct ipr_ioa_cfg *ioa_cfg =
3317 container_of(work, struct ipr_ioa_cfg, scsi_add_work_q);
3318 u8 bus, target, lun;
3322 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3327 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3328 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3332 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3333 if (res->del_from_ml && res->sdev) {
3336 if (!scsi_device_get(sdev)) {
3337 if (!res->add_to_ml)
3338 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3340 res->del_from_ml = 0;
3341 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3342 scsi_remove_device(sdev);
3343 scsi_device_put(sdev);
3344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3351 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3352 if (res->add_to_ml) {
3354 target = res->target;
3357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3358 scsi_add_device(ioa_cfg->host, bus, target, lun);
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3364 ioa_cfg->scan_done = 1;
3365 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3366 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3371 * ipr_worker_thread - Worker thread
3372 * @work: ioa config struct
3374 * Called at task level from a work thread. This function takes care
3375 * of adding and removing device from the mid-layer as configuration
3376 * changes are detected by the adapter.
3381 static void ipr_worker_thread(struct work_struct *work)
3383 unsigned long lock_flags;
3384 struct ipr_dump *dump;
3385 struct ipr_ioa_cfg *ioa_cfg =
3386 container_of(work, struct ipr_ioa_cfg, work_q);
3389 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3391 if (ioa_cfg->sdt_state == READ_DUMP) {
3392 dump = ioa_cfg->dump;
3394 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3397 kref_get(&dump->kref);
3398 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3399 ipr_get_ioa_dump(ioa_cfg, dump);
3400 kref_put(&dump->kref, ipr_release_dump);
3402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3403 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3404 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3409 if (ioa_cfg->scsi_unblock) {
3410 ioa_cfg->scsi_unblock = 0;
3411 ioa_cfg->scsi_blocked = 0;
3412 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3413 scsi_unblock_requests(ioa_cfg->host);
3414 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3415 if (ioa_cfg->scsi_blocked)
3416 scsi_block_requests(ioa_cfg->host);
3419 if (!ioa_cfg->scan_enabled) {
3420 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3424 schedule_work(&ioa_cfg->scsi_add_work_q);
3426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3430 #ifdef CONFIG_SCSI_IPR_TRACE
3432 * ipr_read_trace - Dump the adapter trace
3433 * @filp: open sysfs file
3434 * @kobj: kobject struct
3435 * @bin_attr: bin_attribute struct
3438 * @count: buffer size
3441 * number of bytes printed to buffer
3443 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3444 struct bin_attribute *bin_attr,
3445 char *buf, loff_t off, size_t count)
3447 struct device *dev = container_of(kobj, struct device, kobj);
3448 struct Scsi_Host *shost = class_to_shost(dev);
3449 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3450 unsigned long lock_flags = 0;
3453 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3454 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3456 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3461 static struct bin_attribute ipr_trace_attr = {
3467 .read = ipr_read_trace,
3472 * ipr_show_fw_version - Show the firmware version
3473 * @dev: class device struct
3477 * number of bytes printed to buffer
3479 static ssize_t ipr_show_fw_version(struct device *dev,
3480 struct device_attribute *attr, char *buf)
3482 struct Scsi_Host *shost = class_to_shost(dev);
3483 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3484 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3485 unsigned long lock_flags = 0;
3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3489 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3490 ucode_vpd->major_release, ucode_vpd->card_type,
3491 ucode_vpd->minor_release[0],
3492 ucode_vpd->minor_release[1]);
3493 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3497 static struct device_attribute ipr_fw_version_attr = {
3499 .name = "fw_version",
3502 .show = ipr_show_fw_version,
3506 * ipr_show_log_level - Show the adapter's error logging level
3507 * @dev: class device struct
3511 * number of bytes printed to buffer
3513 static ssize_t ipr_show_log_level(struct device *dev,
3514 struct device_attribute *attr, char *buf)
3516 struct Scsi_Host *shost = class_to_shost(dev);
3517 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3518 unsigned long lock_flags = 0;
3521 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3522 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3523 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3528 * ipr_store_log_level - Change the adapter's error logging level
3529 * @dev: class device struct
3533 * number of bytes printed to buffer
3535 static ssize_t ipr_store_log_level(struct device *dev,
3536 struct device_attribute *attr,
3537 const char *buf, size_t count)
3539 struct Scsi_Host *shost = class_to_shost(dev);
3540 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3541 unsigned long lock_flags = 0;
3543 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3544 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3545 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3549 static struct device_attribute ipr_log_level_attr = {
3551 .name = "log_level",
3552 .mode = S_IRUGO | S_IWUSR,
3554 .show = ipr_show_log_level,
3555 .store = ipr_store_log_level
3559 * ipr_store_diagnostics - IOA Diagnostics interface
3560 * @dev: device struct
3562 * @count: buffer size
3564 * This function will reset the adapter and wait a reasonable
3565 * amount of time for any errors that the adapter might log.
3568 * count on success / other on failure
3570 static ssize_t ipr_store_diagnostics(struct device *dev,
3571 struct device_attribute *attr,
3572 const char *buf, size_t count)
3574 struct Scsi_Host *shost = class_to_shost(dev);
3575 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3576 unsigned long lock_flags = 0;
3579 if (!capable(CAP_SYS_ADMIN))
3582 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3583 while (ioa_cfg->in_reset_reload) {
3584 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3585 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3586 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3589 ioa_cfg->errors_logged = 0;
3590 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3592 if (ioa_cfg->in_reset_reload) {
3593 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3594 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3596 /* Wait for a second for any errors to be logged */
3599 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3603 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3604 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3606 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3611 static struct device_attribute ipr_diagnostics_attr = {
3613 .name = "run_diagnostics",
3616 .store = ipr_store_diagnostics
3620 * ipr_show_adapter_state - Show the adapter's state
3621 * @class_dev: device struct
3625 * number of bytes printed to buffer
3627 static ssize_t ipr_show_adapter_state(struct device *dev,
3628 struct device_attribute *attr, char *buf)
3630 struct Scsi_Host *shost = class_to_shost(dev);
3631 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3632 unsigned long lock_flags = 0;
3635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3636 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3637 len = snprintf(buf, PAGE_SIZE, "offline\n");
3639 len = snprintf(buf, PAGE_SIZE, "online\n");
3640 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3645 * ipr_store_adapter_state - Change adapter state
3646 * @dev: device struct
3648 * @count: buffer size
3650 * This function will change the adapter's state.
3653 * count on success / other on failure
3655 static ssize_t ipr_store_adapter_state(struct device *dev,
3656 struct device_attribute *attr,
3657 const char *buf, size_t count)
3659 struct Scsi_Host *shost = class_to_shost(dev);
3660 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3661 unsigned long lock_flags;
3662 int result = count, i;
3664 if (!capable(CAP_SYS_ADMIN))
3667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3668 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3669 !strncmp(buf, "online", 6)) {
3670 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3671 spin_lock(&ioa_cfg->hrrq[i]._lock);
3672 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3673 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3676 ioa_cfg->reset_retries = 0;
3677 ioa_cfg->in_ioa_bringdown = 0;
3678 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3681 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3686 static struct device_attribute ipr_ioa_state_attr = {
3688 .name = "online_state",
3689 .mode = S_IRUGO | S_IWUSR,
3691 .show = ipr_show_adapter_state,
3692 .store = ipr_store_adapter_state
3696 * ipr_store_reset_adapter - Reset the adapter
3697 * @dev: device struct
3699 * @count: buffer size
3701 * This function will reset the adapter.
3704 * count on success / other on failure
3706 static ssize_t ipr_store_reset_adapter(struct device *dev,
3707 struct device_attribute *attr,
3708 const char *buf, size_t count)
3710 struct Scsi_Host *shost = class_to_shost(dev);
3711 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3712 unsigned long lock_flags;
3715 if (!capable(CAP_SYS_ADMIN))
3718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3719 if (!ioa_cfg->in_reset_reload)
3720 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3721 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3722 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3727 static struct device_attribute ipr_ioa_reset_attr = {
3729 .name = "reset_host",
3732 .store = ipr_store_reset_adapter
3735 static int ipr_iopoll(struct irq_poll *iop, int budget);
3737 * ipr_show_iopoll_weight - Show ipr polling mode
3738 * @dev: class device struct
3742 * number of bytes printed to buffer
3744 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3745 struct device_attribute *attr, char *buf)
3747 struct Scsi_Host *shost = class_to_shost(dev);
3748 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3749 unsigned long lock_flags = 0;
3752 spin_lock_irqsave(shost->host_lock, lock_flags);
3753 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3754 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3760 * ipr_store_iopoll_weight - Change the adapter's polling mode
3761 * @dev: class device struct
3765 * number of bytes printed to buffer
3767 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3768 struct device_attribute *attr,
3769 const char *buf, size_t count)
3771 struct Scsi_Host *shost = class_to_shost(dev);
3772 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3773 unsigned long user_iopoll_weight;
3774 unsigned long lock_flags = 0;
3777 if (!ioa_cfg->sis64) {
3778 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
3781 if (kstrtoul(buf, 10, &user_iopoll_weight))
3784 if (user_iopoll_weight > 256) {
3785 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
3789 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3790 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
3794 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3795 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3796 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
3799 spin_lock_irqsave(shost->host_lock, lock_flags);
3800 ioa_cfg->iopoll_weight = user_iopoll_weight;
3801 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3802 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3803 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
3804 ioa_cfg->iopoll_weight, ipr_iopoll);
3807 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3812 static struct device_attribute ipr_iopoll_weight_attr = {
3814 .name = "iopoll_weight",
3815 .mode = S_IRUGO | S_IWUSR,
3817 .show = ipr_show_iopoll_weight,
3818 .store = ipr_store_iopoll_weight
3822 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3823 * @buf_len: buffer length
3825 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3826 * list to use for microcode download
3829 * pointer to sglist / NULL on failure
3831 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3833 int sg_size, order, bsize_elem, num_elem, i, j;
3834 struct ipr_sglist *sglist;
3835 struct scatterlist *scatterlist;
3838 /* Get the minimum size per scatter/gather element */
3839 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3841 /* Get the actual size per element */
3842 order = get_order(sg_size);
3844 /* Determine the actual number of bytes per element */
3845 bsize_elem = PAGE_SIZE * (1 << order);
3847 /* Determine the actual number of sg entries needed */
3848 if (buf_len % bsize_elem)
3849 num_elem = (buf_len / bsize_elem) + 1;
3851 num_elem = buf_len / bsize_elem;
3853 /* Allocate a scatter/gather list for the DMA */
3854 sglist = kzalloc(sizeof(struct ipr_sglist) +
3855 (sizeof(struct scatterlist) * (num_elem - 1)),
3858 if (sglist == NULL) {
3863 scatterlist = sglist->scatterlist;
3864 sg_init_table(scatterlist, num_elem);
3866 sglist->order = order;
3867 sglist->num_sg = num_elem;
3869 /* Allocate a bunch of sg elements */
3870 for (i = 0; i < num_elem; i++) {
3871 page = alloc_pages(GFP_KERNEL, order);
3875 /* Free up what we already allocated */
3876 for (j = i - 1; j >= 0; j--)
3877 __free_pages(sg_page(&scatterlist[j]), order);
3882 sg_set_page(&scatterlist[i], page, 0, 0);
3889 * ipr_free_ucode_buffer - Frees a microcode download buffer
3890 * @p_dnld: scatter/gather list pointer
3892 * Free a DMA'able ucode download buffer previously allocated with
3893 * ipr_alloc_ucode_buffer
3898 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3902 for (i = 0; i < sglist->num_sg; i++)
3903 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3909 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3910 * @sglist: scatter/gather list pointer
3911 * @buffer: buffer pointer
3912 * @len: buffer length
3914 * Copy a microcode image from a user buffer into a buffer allocated by
3915 * ipr_alloc_ucode_buffer
3918 * 0 on success / other on failure
3920 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3921 u8 *buffer, u32 len)
3923 int bsize_elem, i, result = 0;
3924 struct scatterlist *scatterlist;
3927 /* Determine the actual number of bytes per element */
3928 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3930 scatterlist = sglist->scatterlist;
3932 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3933 struct page *page = sg_page(&scatterlist[i]);
3936 memcpy(kaddr, buffer, bsize_elem);
3939 scatterlist[i].length = bsize_elem;
3947 if (len % bsize_elem) {
3948 struct page *page = sg_page(&scatterlist[i]);
3951 memcpy(kaddr, buffer, len % bsize_elem);
3954 scatterlist[i].length = len % bsize_elem;
3957 sglist->buffer_len = len;
3962 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3963 * @ipr_cmd: ipr command struct
3964 * @sglist: scatter/gather list
3966 * Builds a microcode download IOA data list (IOADL).
3969 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3970 struct ipr_sglist *sglist)
3972 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3973 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3974 struct scatterlist *scatterlist = sglist->scatterlist;
3977 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3978 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3979 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3982 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3983 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3984 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3985 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3986 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3989 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3993 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3994 * @ipr_cmd: ipr command struct
3995 * @sglist: scatter/gather list
3997 * Builds a microcode download IOA data list (IOADL).
4000 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
4001 struct ipr_sglist *sglist)
4003 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4004 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
4005 struct scatterlist *scatterlist = sglist->scatterlist;
4008 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
4009 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4010 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
4013 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4015 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
4016 ioadl[i].flags_and_data_len =
4017 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
4019 cpu_to_be32(sg_dma_address(&scatterlist[i]));
4022 ioadl[i-1].flags_and_data_len |=
4023 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4027 * ipr_update_ioa_ucode - Update IOA's microcode
4028 * @ioa_cfg: ioa config struct
4029 * @sglist: scatter/gather list
4031 * Initiate an adapter reset to update the IOA's microcode
4034 * 0 on success / -EIO on failure
4036 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
4037 struct ipr_sglist *sglist)
4039 unsigned long lock_flags;
4041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4042 while (ioa_cfg->in_reset_reload) {
4043 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4044 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4045 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4048 if (ioa_cfg->ucode_sglist) {
4049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4050 dev_err(&ioa_cfg->pdev->dev,
4051 "Microcode download already in progress\n");
4055 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
4056 sglist->scatterlist, sglist->num_sg,
4059 if (!sglist->num_dma_sg) {
4060 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4061 dev_err(&ioa_cfg->pdev->dev,
4062 "Failed to map microcode download buffer!\n");
4066 ioa_cfg->ucode_sglist = sglist;
4067 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
4068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4069 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4071 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4072 ioa_cfg->ucode_sglist = NULL;
4073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4078 * ipr_store_update_fw - Update the firmware on the adapter
4079 * @class_dev: device struct
4081 * @count: buffer size
4083 * This function will update the firmware on the adapter.
4086 * count on success / other on failure
4088 static ssize_t ipr_store_update_fw(struct device *dev,
4089 struct device_attribute *attr,
4090 const char *buf, size_t count)
4092 struct Scsi_Host *shost = class_to_shost(dev);
4093 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4094 struct ipr_ucode_image_header *image_hdr;
4095 const struct firmware *fw_entry;
4096 struct ipr_sglist *sglist;
4100 int result, dnld_size;
4102 if (!capable(CAP_SYS_ADMIN))
4105 snprintf(fname, sizeof(fname), "%s", buf);
4107 endline = strchr(fname, '\n');
4111 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4112 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4116 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4118 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4119 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4120 sglist = ipr_alloc_ucode_buffer(dnld_size);
4123 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4124 release_firmware(fw_entry);
4128 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4131 dev_err(&ioa_cfg->pdev->dev,
4132 "Microcode buffer copy to DMA buffer failed\n");
4136 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4138 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4143 ipr_free_ucode_buffer(sglist);
4144 release_firmware(fw_entry);
4148 static struct device_attribute ipr_update_fw_attr = {
4150 .name = "update_fw",
4153 .store = ipr_store_update_fw
4157 * ipr_show_fw_type - Show the adapter's firmware type.
4158 * @dev: class device struct
4162 * number of bytes printed to buffer
4164 static ssize_t ipr_show_fw_type(struct device *dev,
4165 struct device_attribute *attr, char *buf)
4167 struct Scsi_Host *shost = class_to_shost(dev);
4168 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4169 unsigned long lock_flags = 0;
4172 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4173 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4174 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4178 static struct device_attribute ipr_ioa_fw_type_attr = {
4183 .show = ipr_show_fw_type
4186 static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
4187 struct bin_attribute *bin_attr, char *buf,
4188 loff_t off, size_t count)
4190 struct device *cdev = container_of(kobj, struct device, kobj);
4191 struct Scsi_Host *shost = class_to_shost(cdev);
4192 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4193 struct ipr_hostrcb *hostrcb;
4194 unsigned long lock_flags = 0;
4197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4198 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4199 struct ipr_hostrcb, queue);
4201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4204 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
4205 sizeof(hostrcb->hcam));
4206 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4210 static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
4211 struct bin_attribute *bin_attr, char *buf,
4212 loff_t off, size_t count)
4214 struct device *cdev = container_of(kobj, struct device, kobj);
4215 struct Scsi_Host *shost = class_to_shost(cdev);
4216 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4217 struct ipr_hostrcb *hostrcb;
4218 unsigned long lock_flags = 0;
4220 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4221 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4222 struct ipr_hostrcb, queue);
4224 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4228 /* Reclaim hostrcb before exit */
4229 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
4230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4234 static struct bin_attribute ipr_ioa_async_err_log = {
4236 .name = "async_err_log",
4237 .mode = S_IRUGO | S_IWUSR,
4240 .read = ipr_read_async_err_log,
4241 .write = ipr_next_async_err_log
4244 static struct device_attribute *ipr_ioa_attrs[] = {
4245 &ipr_fw_version_attr,
4246 &ipr_log_level_attr,
4247 &ipr_diagnostics_attr,
4248 &ipr_ioa_state_attr,
4249 &ipr_ioa_reset_attr,
4250 &ipr_update_fw_attr,
4251 &ipr_ioa_fw_type_attr,
4252 &ipr_iopoll_weight_attr,
4256 #ifdef CONFIG_SCSI_IPR_DUMP
4258 * ipr_read_dump - Dump the adapter
4259 * @filp: open sysfs file
4260 * @kobj: kobject struct
4261 * @bin_attr: bin_attribute struct
4264 * @count: buffer size
4267 * number of bytes printed to buffer
4269 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4270 struct bin_attribute *bin_attr,
4271 char *buf, loff_t off, size_t count)
4273 struct device *cdev = container_of(kobj, struct device, kobj);
4274 struct Scsi_Host *shost = class_to_shost(cdev);
4275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4276 struct ipr_dump *dump;
4277 unsigned long lock_flags = 0;
4282 if (!capable(CAP_SYS_ADMIN))
4285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4286 dump = ioa_cfg->dump;
4288 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4292 kref_get(&dump->kref);
4293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4295 if (off > dump->driver_dump.hdr.len) {
4296 kref_put(&dump->kref, ipr_release_dump);
4300 if (off + count > dump->driver_dump.hdr.len) {
4301 count = dump->driver_dump.hdr.len - off;
4305 if (count && off < sizeof(dump->driver_dump)) {
4306 if (off + count > sizeof(dump->driver_dump))
4307 len = sizeof(dump->driver_dump) - off;
4310 src = (u8 *)&dump->driver_dump + off;
4311 memcpy(buf, src, len);
4317 off -= sizeof(dump->driver_dump);
4320 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4321 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4322 sizeof(struct ipr_sdt_entry));
4324 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4325 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4327 if (count && off < sdt_end) {
4328 if (off + count > sdt_end)
4329 len = sdt_end - off;
4332 src = (u8 *)&dump->ioa_dump + off;
4333 memcpy(buf, src, len);
4342 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4343 len = PAGE_ALIGN(off) - off;
4346 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4347 src += off & ~PAGE_MASK;
4348 memcpy(buf, src, len);
4354 kref_put(&dump->kref, ipr_release_dump);
4359 * ipr_alloc_dump - Prepare for adapter dump
4360 * @ioa_cfg: ioa config struct
4363 * 0 on success / other on failure
4365 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4367 struct ipr_dump *dump;
4369 unsigned long lock_flags = 0;
4371 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4374 ipr_err("Dump memory allocation failed\n");
4379 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4381 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4384 ipr_err("Dump memory allocation failed\n");
4389 dump->ioa_dump.ioa_data = ioa_data;
4391 kref_init(&dump->kref);
4392 dump->ioa_cfg = ioa_cfg;
4394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4396 if (INACTIVE != ioa_cfg->sdt_state) {
4397 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4398 vfree(dump->ioa_dump.ioa_data);
4403 ioa_cfg->dump = dump;
4404 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4405 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4406 ioa_cfg->dump_taken = 1;
4407 schedule_work(&ioa_cfg->work_q);
4409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4415 * ipr_free_dump - Free adapter dump memory
4416 * @ioa_cfg: ioa config struct
4419 * 0 on success / other on failure
4421 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4423 struct ipr_dump *dump;
4424 unsigned long lock_flags = 0;
4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4429 dump = ioa_cfg->dump;
4431 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4435 ioa_cfg->dump = NULL;
4436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4438 kref_put(&dump->kref, ipr_release_dump);
4445 * ipr_write_dump - Setup dump state of adapter
4446 * @filp: open sysfs file
4447 * @kobj: kobject struct
4448 * @bin_attr: bin_attribute struct
4451 * @count: buffer size
4454 * number of bytes printed to buffer
4456 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4457 struct bin_attribute *bin_attr,
4458 char *buf, loff_t off, size_t count)
4460 struct device *cdev = container_of(kobj, struct device, kobj);
4461 struct Scsi_Host *shost = class_to_shost(cdev);
4462 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4465 if (!capable(CAP_SYS_ADMIN))
4469 rc = ipr_alloc_dump(ioa_cfg);
4470 else if (buf[0] == '0')
4471 rc = ipr_free_dump(ioa_cfg);
4481 static struct bin_attribute ipr_dump_attr = {
4484 .mode = S_IRUSR | S_IWUSR,
4487 .read = ipr_read_dump,
4488 .write = ipr_write_dump
4491 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4495 * ipr_change_queue_depth - Change the device's queue depth
4496 * @sdev: scsi device struct
4497 * @qdepth: depth to set
4498 * @reason: calling context
4503 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4505 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4506 struct ipr_resource_entry *res;
4507 unsigned long lock_flags = 0;
4509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4510 res = (struct ipr_resource_entry *)sdev->hostdata;
4512 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4513 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4514 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4516 scsi_change_queue_depth(sdev, qdepth);
4517 return sdev->queue_depth;
4521 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4522 * @dev: device struct
4523 * @attr: device attribute structure
4527 * number of bytes printed to buffer
4529 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4531 struct scsi_device *sdev = to_scsi_device(dev);
4532 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4533 struct ipr_resource_entry *res;
4534 unsigned long lock_flags = 0;
4535 ssize_t len = -ENXIO;
4537 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4538 res = (struct ipr_resource_entry *)sdev->hostdata;
4540 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4541 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4545 static struct device_attribute ipr_adapter_handle_attr = {
4547 .name = "adapter_handle",
4550 .show = ipr_show_adapter_handle
4554 * ipr_show_resource_path - Show the resource path or the resource address for
4556 * @dev: device struct
4557 * @attr: device attribute structure
4561 * number of bytes printed to buffer
4563 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4565 struct scsi_device *sdev = to_scsi_device(dev);
4566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4567 struct ipr_resource_entry *res;
4568 unsigned long lock_flags = 0;
4569 ssize_t len = -ENXIO;
4570 char buffer[IPR_MAX_RES_PATH_LENGTH];
4572 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4573 res = (struct ipr_resource_entry *)sdev->hostdata;
4574 if (res && ioa_cfg->sis64)
4575 len = snprintf(buf, PAGE_SIZE, "%s\n",
4576 __ipr_format_res_path(res->res_path, buffer,
4579 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4580 res->bus, res->target, res->lun);
4582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4586 static struct device_attribute ipr_resource_path_attr = {
4588 .name = "resource_path",
4591 .show = ipr_show_resource_path
4595 * ipr_show_device_id - Show the device_id for this device.
4596 * @dev: device struct
4597 * @attr: device attribute structure
4601 * number of bytes printed to buffer
4603 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4605 struct scsi_device *sdev = to_scsi_device(dev);
4606 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4607 struct ipr_resource_entry *res;
4608 unsigned long lock_flags = 0;
4609 ssize_t len = -ENXIO;
4611 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4612 res = (struct ipr_resource_entry *)sdev->hostdata;
4613 if (res && ioa_cfg->sis64)
4614 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4616 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4618 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4622 static struct device_attribute ipr_device_id_attr = {
4624 .name = "device_id",
4627 .show = ipr_show_device_id
4631 * ipr_show_resource_type - Show the resource type for this device.
4632 * @dev: device struct
4633 * @attr: device attribute structure
4637 * number of bytes printed to buffer
4639 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4641 struct scsi_device *sdev = to_scsi_device(dev);
4642 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4643 struct ipr_resource_entry *res;
4644 unsigned long lock_flags = 0;
4645 ssize_t len = -ENXIO;
4647 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4648 res = (struct ipr_resource_entry *)sdev->hostdata;
4651 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4653 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4657 static struct device_attribute ipr_resource_type_attr = {
4659 .name = "resource_type",
4662 .show = ipr_show_resource_type
4666 * ipr_show_raw_mode - Show the adapter's raw mode
4667 * @dev: class device struct
4671 * number of bytes printed to buffer
4673 static ssize_t ipr_show_raw_mode(struct device *dev,
4674 struct device_attribute *attr, char *buf)
4676 struct scsi_device *sdev = to_scsi_device(dev);
4677 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4678 struct ipr_resource_entry *res;
4679 unsigned long lock_flags = 0;
4682 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4683 res = (struct ipr_resource_entry *)sdev->hostdata;
4685 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4688 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4693 * ipr_store_raw_mode - Change the adapter's raw mode
4694 * @dev: class device struct
4698 * number of bytes printed to buffer
4700 static ssize_t ipr_store_raw_mode(struct device *dev,
4701 struct device_attribute *attr,
4702 const char *buf, size_t count)
4704 struct scsi_device *sdev = to_scsi_device(dev);
4705 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4706 struct ipr_resource_entry *res;
4707 unsigned long lock_flags = 0;
4710 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4711 res = (struct ipr_resource_entry *)sdev->hostdata;
4713 if (ipr_is_af_dasd_device(res)) {
4714 res->raw_mode = simple_strtoul(buf, NULL, 10);
4717 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4718 res->raw_mode ? "enabled" : "disabled");
4723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4727 static struct device_attribute ipr_raw_mode_attr = {
4730 .mode = S_IRUGO | S_IWUSR,
4732 .show = ipr_show_raw_mode,
4733 .store = ipr_store_raw_mode
4736 static struct device_attribute *ipr_dev_attrs[] = {
4737 &ipr_adapter_handle_attr,
4738 &ipr_resource_path_attr,
4739 &ipr_device_id_attr,
4740 &ipr_resource_type_attr,
4746 * ipr_biosparam - Return the HSC mapping
4747 * @sdev: scsi device struct
4748 * @block_device: block device pointer
4749 * @capacity: capacity of the device
4750 * @parm: Array containing returned HSC values.
4752 * This function generates the HSC parms that fdisk uses.
4753 * We want to make sure we return something that places partitions
4754 * on 4k boundaries for best performance with the IOA.
4759 static int ipr_biosparam(struct scsi_device *sdev,
4760 struct block_device *block_device,
4761 sector_t capacity, int *parm)
4769 cylinders = capacity;
4770 sector_div(cylinders, (128 * 32));
4775 parm[2] = cylinders;
4781 * ipr_find_starget - Find target based on bus/target.
4782 * @starget: scsi target struct
4785 * resource entry pointer if found / NULL if not found
4787 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4789 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4790 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4791 struct ipr_resource_entry *res;
4793 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4794 if ((res->bus == starget->channel) &&
4795 (res->target == starget->id)) {
4803 static struct ata_port_info sata_port_info;
4806 * ipr_target_alloc - Prepare for commands to a SCSI target
4807 * @starget: scsi target struct
4809 * If the device is a SATA device, this function allocates an
4810 * ATA port with libata, else it does nothing.
4813 * 0 on success / non-0 on failure
4815 static int ipr_target_alloc(struct scsi_target *starget)
4817 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4818 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4819 struct ipr_sata_port *sata_port;
4820 struct ata_port *ap;
4821 struct ipr_resource_entry *res;
4822 unsigned long lock_flags;
4824 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4825 res = ipr_find_starget(starget);
4826 starget->hostdata = NULL;
4828 if (res && ipr_is_gata(res)) {
4829 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4830 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4834 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4836 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4837 sata_port->ioa_cfg = ioa_cfg;
4839 sata_port->res = res;
4841 res->sata_port = sata_port;
4842 ap->private_data = sata_port;
4843 starget->hostdata = sata_port;
4849 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4855 * ipr_target_destroy - Destroy a SCSI target
4856 * @starget: scsi target struct
4858 * If the device was a SATA device, this function frees the libata
4859 * ATA port, else it does nothing.
4862 static void ipr_target_destroy(struct scsi_target *starget)
4864 struct ipr_sata_port *sata_port = starget->hostdata;
4865 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4866 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4868 if (ioa_cfg->sis64) {
4869 if (!ipr_find_starget(starget)) {
4870 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4871 clear_bit(starget->id, ioa_cfg->array_ids);
4872 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4873 clear_bit(starget->id, ioa_cfg->vset_ids);
4874 else if (starget->channel == 0)
4875 clear_bit(starget->id, ioa_cfg->target_ids);
4880 starget->hostdata = NULL;
4881 ata_sas_port_destroy(sata_port->ap);
4887 * ipr_find_sdev - Find device based on bus/target/lun.
4888 * @sdev: scsi device struct
4891 * resource entry pointer if found / NULL if not found
4893 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4895 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4896 struct ipr_resource_entry *res;
4898 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4899 if ((res->bus == sdev->channel) &&
4900 (res->target == sdev->id) &&
4901 (res->lun == sdev->lun))
4909 * ipr_slave_destroy - Unconfigure a SCSI device
4910 * @sdev: scsi device struct
4915 static void ipr_slave_destroy(struct scsi_device *sdev)
4917 struct ipr_resource_entry *res;
4918 struct ipr_ioa_cfg *ioa_cfg;
4919 unsigned long lock_flags = 0;
4921 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4923 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4924 res = (struct ipr_resource_entry *) sdev->hostdata;
4927 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4928 sdev->hostdata = NULL;
4930 res->sata_port = NULL;
4932 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4936 * ipr_slave_configure - Configure a SCSI device
4937 * @sdev: scsi device struct
4939 * This function configures the specified scsi device.
4944 static int ipr_slave_configure(struct scsi_device *sdev)
4946 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4947 struct ipr_resource_entry *res;
4948 struct ata_port *ap = NULL;
4949 unsigned long lock_flags = 0;
4950 char buffer[IPR_MAX_RES_PATH_LENGTH];
4952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4953 res = sdev->hostdata;
4955 if (ipr_is_af_dasd_device(res))
4956 sdev->type = TYPE_RAID;
4957 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4958 sdev->scsi_level = 4;
4959 sdev->no_uld_attach = 1;
4961 if (ipr_is_vset_device(res)) {
4962 sdev->scsi_level = SCSI_SPC_3;
4963 sdev->no_report_opcodes = 1;
4964 blk_queue_rq_timeout(sdev->request_queue,
4965 IPR_VSET_RW_TIMEOUT);
4966 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4968 if (ipr_is_gata(res) && res->sata_port)
4969 ap = res->sata_port->ap;
4970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4973 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4974 ata_sas_slave_configure(sdev, ap);
4978 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4979 ipr_format_res_path(ioa_cfg,
4980 res->res_path, buffer, sizeof(buffer)));
4983 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4988 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4989 * @sdev: scsi device struct
4991 * This function initializes an ATA port so that future commands
4992 * sent through queuecommand will work.
4997 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4999 struct ipr_sata_port *sata_port = NULL;
5003 if (sdev->sdev_target)
5004 sata_port = sdev->sdev_target->hostdata;
5006 rc = ata_sas_port_init(sata_port->ap);
5008 rc = ata_sas_sync_probe(sata_port->ap);
5012 ipr_slave_destroy(sdev);
5019 * ipr_slave_alloc - Prepare for commands to a device.
5020 * @sdev: scsi device struct
5022 * This function saves a pointer to the resource entry
5023 * in the scsi device struct if the device exists. We
5024 * can then use this pointer in ipr_queuecommand when
5025 * handling new commands.
5028 * 0 on success / -ENXIO if device does not exist
5030 static int ipr_slave_alloc(struct scsi_device *sdev)
5032 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
5033 struct ipr_resource_entry *res;
5034 unsigned long lock_flags;
5037 sdev->hostdata = NULL;
5039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5041 res = ipr_find_sdev(sdev);
5046 sdev->hostdata = res;
5047 if (!ipr_is_naca_model(res))
5048 res->needs_sync_complete = 1;
5050 if (ipr_is_gata(res)) {
5051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5052 return ipr_ata_slave_alloc(sdev);
5056 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5062 * ipr_match_lun - Match function for specified LUN
5063 * @ipr_cmd: ipr command struct
5064 * @device: device to match (sdev)
5067 * 1 if command matches sdev / 0 if command does not match sdev
5069 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
5071 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
5077 * ipr_cmnd_is_free - Check if a command is free or not
5078 * @ipr_cmd ipr command struct
5083 static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd)
5085 struct ipr_cmnd *loop_cmd;
5087 list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) {
5088 if (loop_cmd == ipr_cmd)
5096 * ipr_match_res - Match function for specified resource entry
5097 * @ipr_cmd: ipr command struct
5098 * @resource: resource entry to match
5101 * 1 if command matches sdev / 0 if command does not match sdev
5103 static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource)
5105 struct ipr_resource_entry *res = resource;
5107 if (res && ipr_cmd->ioarcb.res_handle == res->res_handle)
5113 * ipr_wait_for_ops - Wait for matching commands to complete
5114 * @ipr_cmd: ipr command struct
5115 * @device: device to match (sdev)
5116 * @match: match function to use
5121 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
5122 int (*match)(struct ipr_cmnd *, void *))
5124 struct ipr_cmnd *ipr_cmd;
5126 unsigned long flags;
5127 struct ipr_hrr_queue *hrrq;
5128 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
5129 DECLARE_COMPLETION_ONSTACK(comp);
5135 for_each_hrrq(hrrq, ioa_cfg) {
5136 spin_lock_irqsave(hrrq->lock, flags);
5137 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5138 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5139 if (!ipr_cmnd_is_free(ipr_cmd)) {
5140 if (match(ipr_cmd, device)) {
5141 ipr_cmd->eh_comp = ∁
5146 spin_unlock_irqrestore(hrrq->lock, flags);
5150 timeout = wait_for_completion_timeout(&comp, timeout);
5155 for_each_hrrq(hrrq, ioa_cfg) {
5156 spin_lock_irqsave(hrrq->lock, flags);
5157 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5158 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5159 if (!ipr_cmnd_is_free(ipr_cmd)) {
5160 if (match(ipr_cmd, device)) {
5161 ipr_cmd->eh_comp = NULL;
5166 spin_unlock_irqrestore(hrrq->lock, flags);
5170 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
5172 return wait ? FAILED : SUCCESS;
5181 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
5183 struct ipr_ioa_cfg *ioa_cfg;
5184 unsigned long lock_flags = 0;
5188 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5191 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5192 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5193 dev_err(&ioa_cfg->pdev->dev,
5194 "Adapter being reset as a result of error recovery.\n");
5196 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5197 ioa_cfg->sdt_state = GET_DUMP;
5200 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5201 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5202 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5204 /* If we got hit with a host reset while we were already resetting
5205 the adapter for some reason, and the reset failed. */
5206 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5211 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5217 * ipr_device_reset - Reset the device
5218 * @ioa_cfg: ioa config struct
5219 * @res: resource entry struct
5221 * This function issues a device reset to the affected device.
5222 * If the device is a SCSI device, a LUN reset will be sent
5223 * to the device first. If that does not work, a target reset
5224 * will be sent. If the device is a SATA device, a PHY reset will
5228 * 0 on success / non-zero on failure
5230 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5231 struct ipr_resource_entry *res)
5233 struct ipr_cmnd *ipr_cmd;
5234 struct ipr_ioarcb *ioarcb;
5235 struct ipr_cmd_pkt *cmd_pkt;
5236 struct ipr_ioarcb_ata_regs *regs;
5240 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5241 ioarcb = &ipr_cmd->ioarcb;
5242 cmd_pkt = &ioarcb->cmd_pkt;
5244 if (ipr_cmd->ioa_cfg->sis64) {
5245 regs = &ipr_cmd->i.ata_ioadl.regs;
5246 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5248 regs = &ioarcb->u.add_data.u.regs;
5250 ioarcb->res_handle = res->res_handle;
5251 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5252 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5253 if (ipr_is_gata(res)) {
5254 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5255 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5256 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5259 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5260 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5261 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5262 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5263 if (ipr_cmd->ioa_cfg->sis64)
5264 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5265 sizeof(struct ipr_ioasa_gata));
5267 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5268 sizeof(struct ipr_ioasa_gata));
5272 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5276 * ipr_sata_reset - Reset the SATA port
5277 * @link: SATA link to reset
5278 * @classes: class of the attached device
5280 * This function issues a SATA phy reset to the affected ATA link.
5283 * 0 on success / non-zero on failure
5285 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5286 unsigned long deadline)
5288 struct ipr_sata_port *sata_port = link->ap->private_data;
5289 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5290 struct ipr_resource_entry *res;
5291 unsigned long lock_flags = 0;
5292 int rc = -ENXIO, ret;
5295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5296 while (ioa_cfg->in_reset_reload) {
5297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5298 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5299 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5302 res = sata_port->res;
5304 rc = ipr_device_reset(ioa_cfg, res);
5305 *classes = res->ata_class;
5306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5308 ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5309 if (ret != SUCCESS) {
5310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5311 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5314 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5324 * ipr_eh_dev_reset - Reset the device
5325 * @scsi_cmd: scsi command struct
5327 * This function issues a device reset to the affected device.
5328 * A LUN reset will be sent to the device first. If that does
5329 * not work, a target reset will be sent.
5334 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5336 struct ipr_cmnd *ipr_cmd;
5337 struct ipr_ioa_cfg *ioa_cfg;
5338 struct ipr_resource_entry *res;
5339 struct ata_port *ap;
5341 struct ipr_hrr_queue *hrrq;
5344 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5345 res = scsi_cmd->device->hostdata;
5348 * If we are currently going through reset/reload, return failed. This will force the
5349 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5352 if (ioa_cfg->in_reset_reload)
5354 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5357 for_each_hrrq(hrrq, ioa_cfg) {
5358 spin_lock(&hrrq->_lock);
5359 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5360 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5362 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5365 if (ipr_cmnd_is_free(ipr_cmd))
5368 ipr_cmd->done = ipr_sata_eh_done;
5369 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5370 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5371 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5375 spin_unlock(&hrrq->_lock);
5377 res->resetting_device = 1;
5378 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5380 if (ipr_is_gata(res) && res->sata_port) {
5381 ap = res->sata_port->ap;
5382 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5383 ata_std_error_handler(ap);
5384 spin_lock_irq(scsi_cmd->device->host->host_lock);
5386 rc = ipr_device_reset(ioa_cfg, res);
5387 res->resetting_device = 0;
5388 res->reset_occurred = 1;
5391 return rc ? FAILED : SUCCESS;
5394 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5397 struct ipr_ioa_cfg *ioa_cfg;
5398 struct ipr_resource_entry *res;
5400 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5401 res = cmd->device->hostdata;
5406 spin_lock_irq(cmd->device->host->host_lock);
5407 rc = __ipr_eh_dev_reset(cmd);
5408 spin_unlock_irq(cmd->device->host->host_lock);
5410 if (rc == SUCCESS) {
5411 if (ipr_is_gata(res) && res->sata_port)
5412 rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5414 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5421 * ipr_bus_reset_done - Op done function for bus reset.
5422 * @ipr_cmd: ipr command struct
5424 * This function is the op done function for a bus reset
5429 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5431 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5432 struct ipr_resource_entry *res;
5435 if (!ioa_cfg->sis64)
5436 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5437 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5438 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5444 * If abort has not completed, indicate the reset has, else call the
5445 * abort's done function to wake the sleeping eh thread
5447 if (ipr_cmd->sibling->sibling)
5448 ipr_cmd->sibling->sibling = NULL;
5450 ipr_cmd->sibling->done(ipr_cmd->sibling);
5452 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5457 * ipr_abort_timeout - An abort task has timed out
5458 * @ipr_cmd: ipr command struct
5460 * This function handles when an abort task times out. If this
5461 * happens we issue a bus reset since we have resources tied
5462 * up that must be freed before returning to the midlayer.
5467 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5469 struct ipr_cmnd *reset_cmd;
5470 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5471 struct ipr_cmd_pkt *cmd_pkt;
5472 unsigned long lock_flags = 0;
5475 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5476 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5481 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5482 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5483 ipr_cmd->sibling = reset_cmd;
5484 reset_cmd->sibling = ipr_cmd;
5485 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5486 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5487 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5488 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5489 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5491 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5492 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5497 * ipr_cancel_op - Cancel specified op
5498 * @scsi_cmd: scsi command struct
5500 * This function cancels specified op.
5505 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5507 struct ipr_cmnd *ipr_cmd;
5508 struct ipr_ioa_cfg *ioa_cfg;
5509 struct ipr_resource_entry *res;
5510 struct ipr_cmd_pkt *cmd_pkt;
5512 int i, op_found = 0;
5513 struct ipr_hrr_queue *hrrq;
5516 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5517 res = scsi_cmd->device->hostdata;
5519 /* If we are currently going through reset/reload, return failed.
5520 * This will force the mid-layer to call ipr_eh_host_reset,
5521 * which will then go to sleep and wait for the reset to complete
5523 if (ioa_cfg->in_reset_reload ||
5524 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5530 * If we are aborting a timed out op, chances are that the timeout was caused
5531 * by a still not detected EEH error. In such cases, reading a register will
5532 * trigger the EEH recovery infrastructure.
5534 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5536 if (!ipr_is_gscsi(res))
5539 for_each_hrrq(hrrq, ioa_cfg) {
5540 spin_lock(&hrrq->_lock);
5541 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5542 if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) {
5543 if (!ipr_cmnd_is_free(ioa_cfg->ipr_cmnd_list[i])) {
5549 spin_unlock(&hrrq->_lock);
5555 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5556 ipr_cmd->ioarcb.res_handle = res->res_handle;
5557 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5558 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5559 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5560 ipr_cmd->u.sdev = scsi_cmd->device;
5562 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5564 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5565 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5568 * If the abort task timed out and we sent a bus reset, we will get
5569 * one the following responses to the abort
5571 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5576 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5577 if (!ipr_is_naca_model(res))
5578 res->needs_sync_complete = 1;
5581 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5585 * ipr_eh_abort - Abort a single op
5586 * @scsi_cmd: scsi command struct
5589 * 0 if scan in progress / 1 if scan is complete
5591 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5593 unsigned long lock_flags;
5594 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5597 spin_lock_irqsave(shost->host_lock, lock_flags);
5598 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5600 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5602 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5607 * ipr_eh_host_reset - Reset the host adapter
5608 * @scsi_cmd: scsi command struct
5613 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5615 unsigned long flags;
5617 struct ipr_ioa_cfg *ioa_cfg;
5621 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5623 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5624 rc = ipr_cancel_op(scsi_cmd);
5625 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5628 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5634 * ipr_handle_other_interrupt - Handle "other" interrupts
5635 * @ioa_cfg: ioa config struct
5636 * @int_reg: interrupt register
5639 * IRQ_NONE / IRQ_HANDLED
5641 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5644 irqreturn_t rc = IRQ_HANDLED;
5647 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5648 int_reg &= ~int_mask_reg;
5650 /* If an interrupt on the adapter did not occur, ignore it.
5651 * Or in the case of SIS 64, check for a stage change interrupt.
5653 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5654 if (ioa_cfg->sis64) {
5655 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5656 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5657 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5659 /* clear stage change */
5660 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5661 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5662 list_del(&ioa_cfg->reset_cmd->queue);
5663 del_timer(&ioa_cfg->reset_cmd->timer);
5664 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5672 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5673 /* Mask the interrupt */
5674 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5675 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5677 list_del(&ioa_cfg->reset_cmd->queue);
5678 del_timer(&ioa_cfg->reset_cmd->timer);
5679 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5680 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5681 if (ioa_cfg->clear_isr) {
5682 if (ipr_debug && printk_ratelimit())
5683 dev_err(&ioa_cfg->pdev->dev,
5684 "Spurious interrupt detected. 0x%08X\n", int_reg);
5685 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5686 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5690 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5691 ioa_cfg->ioa_unit_checked = 1;
5692 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5693 dev_err(&ioa_cfg->pdev->dev,
5694 "No Host RRQ. 0x%08X\n", int_reg);
5696 dev_err(&ioa_cfg->pdev->dev,
5697 "Permanent IOA failure. 0x%08X\n", int_reg);
5699 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5700 ioa_cfg->sdt_state = GET_DUMP;
5702 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5703 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5710 * ipr_isr_eh - Interrupt service routine error handler
5711 * @ioa_cfg: ioa config struct
5712 * @msg: message to log
5717 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5719 ioa_cfg->errors_logged++;
5720 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5722 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5723 ioa_cfg->sdt_state = GET_DUMP;
5725 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5728 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5729 struct list_head *doneq)
5733 struct ipr_cmnd *ipr_cmd;
5734 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5737 /* If interrupts are disabled, ignore the interrupt */
5738 if (!hrr_queue->allow_interrupts)
5741 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5742 hrr_queue->toggle_bit) {
5744 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5745 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5746 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5748 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5749 cmd_index < hrr_queue->min_cmd_id)) {
5751 "Invalid response handle from IOA: ",
5756 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5757 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5759 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5761 list_move_tail(&ipr_cmd->queue, doneq);
5763 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5764 hrr_queue->hrrq_curr++;
5766 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5767 hrr_queue->toggle_bit ^= 1u;
5770 if (budget > 0 && num_hrrq >= budget)
5777 static int ipr_iopoll(struct irq_poll *iop, int budget)
5779 struct ipr_ioa_cfg *ioa_cfg;
5780 struct ipr_hrr_queue *hrrq;
5781 struct ipr_cmnd *ipr_cmd, *temp;
5782 unsigned long hrrq_flags;
5786 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5787 ioa_cfg = hrrq->ioa_cfg;
5789 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5790 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5792 if (completed_ops < budget)
5793 irq_poll_complete(iop);
5794 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5796 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5797 list_del(&ipr_cmd->queue);
5798 del_timer(&ipr_cmd->timer);
5799 ipr_cmd->fast_done(ipr_cmd);
5802 return completed_ops;
5806 * ipr_isr - Interrupt service routine
5808 * @devp: pointer to ioa config struct
5811 * IRQ_NONE / IRQ_HANDLED
5813 static irqreturn_t ipr_isr(int irq, void *devp)
5815 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5816 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5817 unsigned long hrrq_flags = 0;
5821 struct ipr_cmnd *ipr_cmd, *temp;
5822 irqreturn_t rc = IRQ_NONE;
5825 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5826 /* If interrupts are disabled, ignore the interrupt */
5827 if (!hrrq->allow_interrupts) {
5828 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5833 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5836 if (!ioa_cfg->clear_isr)
5839 /* Clear the PCI interrupt */
5842 writel(IPR_PCII_HRRQ_UPDATED,
5843 ioa_cfg->regs.clr_interrupt_reg32);
5844 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5845 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5846 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5848 } else if (rc == IRQ_NONE && irq_none == 0) {
5849 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5851 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5852 int_reg & IPR_PCII_HRRQ_UPDATED) {
5854 "Error clearing HRRQ: ", num_hrrq);
5861 if (unlikely(rc == IRQ_NONE))
5862 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5864 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5865 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5866 list_del(&ipr_cmd->queue);
5867 del_timer(&ipr_cmd->timer);
5868 ipr_cmd->fast_done(ipr_cmd);
5874 * ipr_isr_mhrrq - Interrupt service routine
5876 * @devp: pointer to ioa config struct
5879 * IRQ_NONE / IRQ_HANDLED
5881 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5883 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5884 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5885 unsigned long hrrq_flags = 0;
5886 struct ipr_cmnd *ipr_cmd, *temp;
5887 irqreturn_t rc = IRQ_NONE;
5890 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5892 /* If interrupts are disabled, ignore the interrupt */
5893 if (!hrrq->allow_interrupts) {
5894 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5898 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5899 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5901 irq_poll_sched(&hrrq->iopoll);
5902 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5906 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5909 if (ipr_process_hrrq(hrrq, -1, &doneq))
5913 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5915 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5916 list_del(&ipr_cmd->queue);
5917 del_timer(&ipr_cmd->timer);
5918 ipr_cmd->fast_done(ipr_cmd);
5924 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5925 * @ioa_cfg: ioa config struct
5926 * @ipr_cmd: ipr command struct
5929 * 0 on success / -1 on failure
5931 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5932 struct ipr_cmnd *ipr_cmd)
5935 struct scatterlist *sg;
5937 u32 ioadl_flags = 0;
5938 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5939 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5940 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5942 length = scsi_bufflen(scsi_cmd);
5946 nseg = scsi_dma_map(scsi_cmd);
5948 if (printk_ratelimit())
5949 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5953 ipr_cmd->dma_use_sg = nseg;
5955 ioarcb->data_transfer_length = cpu_to_be32(length);
5957 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5959 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5960 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5961 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5962 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5963 ioadl_flags = IPR_IOADL_FLAGS_READ;
5965 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5966 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5967 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5968 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5971 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5976 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5977 * @ioa_cfg: ioa config struct
5978 * @ipr_cmd: ipr command struct
5981 * 0 on success / -1 on failure
5983 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5984 struct ipr_cmnd *ipr_cmd)
5987 struct scatterlist *sg;
5989 u32 ioadl_flags = 0;
5990 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5991 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5992 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5994 length = scsi_bufflen(scsi_cmd);
5998 nseg = scsi_dma_map(scsi_cmd);
6000 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
6004 ipr_cmd->dma_use_sg = nseg;
6006 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
6007 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6008 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6009 ioarcb->data_transfer_length = cpu_to_be32(length);
6011 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6012 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
6013 ioadl_flags = IPR_IOADL_FLAGS_READ;
6014 ioarcb->read_data_transfer_length = cpu_to_be32(length);
6015 ioarcb->read_ioadl_len =
6016 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6019 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
6020 ioadl = ioarcb->u.add_data.u.ioadl;
6021 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
6022 offsetof(struct ipr_ioarcb, u.add_data));
6023 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6026 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
6027 ioadl[i].flags_and_data_len =
6028 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6029 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
6032 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6037 * __ipr_erp_done - Process completion of ERP for a device
6038 * @ipr_cmd: ipr command struct
6040 * This function copies the sense buffer into the scsi_cmd
6041 * struct and pushes the scsi_done function.
6046 static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6048 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6049 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6050 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6052 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6053 scsi_cmd->result |= (DID_ERROR << 16);
6054 scmd_printk(KERN_ERR, scsi_cmd,
6055 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
6057 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
6058 SCSI_SENSE_BUFFERSIZE);
6062 if (!ipr_is_naca_model(res))
6063 res->needs_sync_complete = 1;
6066 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6067 scsi_cmd->scsi_done(scsi_cmd);
6068 if (ipr_cmd->eh_comp)
6069 complete(ipr_cmd->eh_comp);
6070 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6074 * ipr_erp_done - Process completion of ERP for a device
6075 * @ipr_cmd: ipr command struct
6077 * This function copies the sense buffer into the scsi_cmd
6078 * struct and pushes the scsi_done function.
6083 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6085 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6086 unsigned long hrrq_flags;
6088 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6089 __ipr_erp_done(ipr_cmd);
6090 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6094 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
6095 * @ipr_cmd: ipr command struct
6100 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
6102 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6103 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6104 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6106 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
6107 ioarcb->data_transfer_length = 0;
6108 ioarcb->read_data_transfer_length = 0;
6109 ioarcb->ioadl_len = 0;
6110 ioarcb->read_ioadl_len = 0;
6111 ioasa->hdr.ioasc = 0;
6112 ioasa->hdr.residual_data_len = 0;
6114 if (ipr_cmd->ioa_cfg->sis64)
6115 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6116 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
6118 ioarcb->write_ioadl_addr =
6119 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
6120 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6125 * __ipr_erp_request_sense - Send request sense to a device
6126 * @ipr_cmd: ipr command struct
6128 * This function sends a request sense to a device as a result
6129 * of a check condition.
6134 static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6136 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6137 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6139 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6140 __ipr_erp_done(ipr_cmd);
6144 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6146 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
6147 cmd_pkt->cdb[0] = REQUEST_SENSE;
6148 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
6149 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
6150 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6151 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
6153 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
6154 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
6156 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
6157 IPR_REQUEST_SENSE_TIMEOUT * 2);
6161 * ipr_erp_request_sense - Send request sense to a device
6162 * @ipr_cmd: ipr command struct
6164 * This function sends a request sense to a device as a result
6165 * of a check condition.
6170 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6172 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6173 unsigned long hrrq_flags;
6175 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6176 __ipr_erp_request_sense(ipr_cmd);
6177 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6181 * ipr_erp_cancel_all - Send cancel all to a device
6182 * @ipr_cmd: ipr command struct
6184 * This function sends a cancel all to a device to clear the
6185 * queue. If we are running TCQ on the device, QERR is set to 1,
6186 * which means all outstanding ops have been dropped on the floor.
6187 * Cancel all will return them to us.
6192 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
6194 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6195 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6196 struct ipr_cmd_pkt *cmd_pkt;
6200 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6202 if (!scsi_cmd->device->simple_tags) {
6203 __ipr_erp_request_sense(ipr_cmd);
6207 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6208 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
6209 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
6211 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
6212 IPR_CANCEL_ALL_TIMEOUT);
6216 * ipr_dump_ioasa - Dump contents of IOASA
6217 * @ioa_cfg: ioa config struct
6218 * @ipr_cmd: ipr command struct
6219 * @res: resource entry struct
6221 * This function is invoked by the interrupt handler when ops
6222 * fail. It will log the IOASA if appropriate. Only called
6228 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
6229 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
6233 u32 ioasc, fd_ioasc;
6234 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6235 __be32 *ioasa_data = (__be32 *)ioasa;
6238 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
6239 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
6244 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6247 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6248 error_index = ipr_get_error(fd_ioasc);
6250 error_index = ipr_get_error(ioasc);
6252 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6253 /* Don't log an error if the IOA already logged one */
6254 if (ioasa->hdr.ilid != 0)
6257 if (!ipr_is_gscsi(res))
6260 if (ipr_error_table[error_index].log_ioasa == 0)
6264 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6266 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6267 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6268 data_len = sizeof(struct ipr_ioasa64);
6269 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6270 data_len = sizeof(struct ipr_ioasa);
6272 ipr_err("IOASA Dump:\n");
6274 for (i = 0; i < data_len / 4; i += 4) {
6275 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6276 be32_to_cpu(ioasa_data[i]),
6277 be32_to_cpu(ioasa_data[i+1]),
6278 be32_to_cpu(ioasa_data[i+2]),
6279 be32_to_cpu(ioasa_data[i+3]));
6284 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6286 * @sense_buf: sense data buffer
6291 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6294 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6295 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6296 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6297 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6299 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6301 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6304 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6306 if (ipr_is_vset_device(res) &&
6307 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6308 ioasa->u.vset.failing_lba_hi != 0) {
6309 sense_buf[0] = 0x72;
6310 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6311 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6312 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6316 sense_buf[9] = 0x0A;
6317 sense_buf[10] = 0x80;
6319 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6321 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6322 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6323 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6324 sense_buf[15] = failing_lba & 0x000000ff;
6326 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6328 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6329 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6330 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6331 sense_buf[19] = failing_lba & 0x000000ff;
6333 sense_buf[0] = 0x70;
6334 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6335 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6336 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6338 /* Illegal request */
6339 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6340 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6341 sense_buf[7] = 10; /* additional length */
6343 /* IOARCB was in error */
6344 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6345 sense_buf[15] = 0xC0;
6346 else /* Parameter data was invalid */
6347 sense_buf[15] = 0x80;
6350 ((IPR_FIELD_POINTER_MASK &
6351 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6353 (IPR_FIELD_POINTER_MASK &
6354 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6356 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6357 if (ipr_is_vset_device(res))
6358 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6360 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6362 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6363 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6364 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6365 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6366 sense_buf[6] = failing_lba & 0x000000ff;
6369 sense_buf[7] = 6; /* additional length */
6375 * ipr_get_autosense - Copy autosense data to sense buffer
6376 * @ipr_cmd: ipr command struct
6378 * This function copies the autosense buffer to the buffer
6379 * in the scsi_cmd, if there is autosense available.
6382 * 1 if autosense was available / 0 if not
6384 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6386 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6387 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6389 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6392 if (ipr_cmd->ioa_cfg->sis64)
6393 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6394 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6395 SCSI_SENSE_BUFFERSIZE));
6397 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6398 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6399 SCSI_SENSE_BUFFERSIZE));
6404 * ipr_erp_start - Process an error response for a SCSI op
6405 * @ioa_cfg: ioa config struct
6406 * @ipr_cmd: ipr command struct
6408 * This function determines whether or not to initiate ERP
6409 * on the affected device.
6414 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6415 struct ipr_cmnd *ipr_cmd)
6417 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6418 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6419 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6420 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6423 __ipr_scsi_eh_done(ipr_cmd);
6427 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6428 ipr_gen_sense(ipr_cmd);
6430 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6432 switch (masked_ioasc) {
6433 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6434 if (ipr_is_naca_model(res))
6435 scsi_cmd->result |= (DID_ABORT << 16);
6437 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6439 case IPR_IOASC_IR_RESOURCE_HANDLE:
6440 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6441 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6443 case IPR_IOASC_HW_SEL_TIMEOUT:
6444 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6445 if (!ipr_is_naca_model(res))
6446 res->needs_sync_complete = 1;
6448 case IPR_IOASC_SYNC_REQUIRED:
6450 res->needs_sync_complete = 1;
6451 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6453 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6454 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6456 * exception: do not set DID_PASSTHROUGH on CHECK CONDITION
6457 * so SCSI mid-layer and upper layers handle it accordingly.
6459 if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION)
6460 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6462 case IPR_IOASC_BUS_WAS_RESET:
6463 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6465 * Report the bus reset and ask for a retry. The device
6466 * will give CC/UA the next command.
6468 if (!res->resetting_device)
6469 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6470 scsi_cmd->result |= (DID_ERROR << 16);
6471 if (!ipr_is_naca_model(res))
6472 res->needs_sync_complete = 1;
6474 case IPR_IOASC_HW_DEV_BUS_STATUS:
6475 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6476 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6477 if (!ipr_get_autosense(ipr_cmd)) {
6478 if (!ipr_is_naca_model(res)) {
6479 ipr_erp_cancel_all(ipr_cmd);
6484 if (!ipr_is_naca_model(res))
6485 res->needs_sync_complete = 1;
6487 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6489 case IPR_IOASC_IR_NON_OPTIMIZED:
6490 if (res->raw_mode) {
6492 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6494 scsi_cmd->result |= (DID_ERROR << 16);
6497 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6498 scsi_cmd->result |= (DID_ERROR << 16);
6499 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6500 res->needs_sync_complete = 1;
6504 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6505 scsi_cmd->scsi_done(scsi_cmd);
6506 if (ipr_cmd->eh_comp)
6507 complete(ipr_cmd->eh_comp);
6508 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6512 * ipr_scsi_done - mid-layer done function
6513 * @ipr_cmd: ipr command struct
6515 * This function is invoked by the interrupt handler for
6516 * ops generated by the SCSI mid-layer
6521 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6523 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6524 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6525 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6526 unsigned long lock_flags;
6528 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6530 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6531 scsi_dma_unmap(scsi_cmd);
6533 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6534 scsi_cmd->scsi_done(scsi_cmd);
6535 if (ipr_cmd->eh_comp)
6536 complete(ipr_cmd->eh_comp);
6537 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6538 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6540 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6541 spin_lock(&ipr_cmd->hrrq->_lock);
6542 ipr_erp_start(ioa_cfg, ipr_cmd);
6543 spin_unlock(&ipr_cmd->hrrq->_lock);
6544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6549 * ipr_queuecommand - Queue a mid-layer request
6550 * @shost: scsi host struct
6551 * @scsi_cmd: scsi command struct
6553 * This function queues a request generated by the mid-layer.
6557 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6558 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6560 static int ipr_queuecommand(struct Scsi_Host *shost,
6561 struct scsi_cmnd *scsi_cmd)
6563 struct ipr_ioa_cfg *ioa_cfg;
6564 struct ipr_resource_entry *res;
6565 struct ipr_ioarcb *ioarcb;
6566 struct ipr_cmnd *ipr_cmd;
6567 unsigned long hrrq_flags, lock_flags;
6569 struct ipr_hrr_queue *hrrq;
6572 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6574 scsi_cmd->result = (DID_OK << 16);
6575 res = scsi_cmd->device->hostdata;
6577 if (ipr_is_gata(res) && res->sata_port) {
6578 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6579 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6580 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6584 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6585 hrrq = &ioa_cfg->hrrq[hrrq_id];
6587 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6589 * We are currently blocking all devices due to a host reset
6590 * We have told the host to stop giving us new requests, but
6591 * ERP ops don't count. FIXME
6593 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6594 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6595 return SCSI_MLQUEUE_HOST_BUSY;
6599 * FIXME - Create scsi_set_host_offline interface
6600 * and the ioa_is_dead check can be removed
6602 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6603 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6607 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6608 if (ipr_cmd == NULL) {
6609 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6610 return SCSI_MLQUEUE_HOST_BUSY;
6612 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6614 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6615 ioarcb = &ipr_cmd->ioarcb;
6617 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6618 ipr_cmd->scsi_cmd = scsi_cmd;
6619 ipr_cmd->done = ipr_scsi_eh_done;
6621 if (ipr_is_gscsi(res)) {
6622 if (scsi_cmd->underflow == 0)
6623 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6625 if (res->reset_occurred) {
6626 res->reset_occurred = 0;
6627 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6631 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6632 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6634 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6635 if (scsi_cmd->flags & SCMD_TAGGED)
6636 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6638 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6641 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6642 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6643 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6645 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6646 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6648 if (scsi_cmd->underflow == 0)
6649 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6653 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6655 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6657 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6658 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6659 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6660 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6662 scsi_dma_unmap(scsi_cmd);
6663 return SCSI_MLQUEUE_HOST_BUSY;
6666 if (unlikely(hrrq->ioa_is_dead)) {
6667 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6668 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6669 scsi_dma_unmap(scsi_cmd);
6673 ioarcb->res_handle = res->res_handle;
6674 if (res->needs_sync_complete) {
6675 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6676 res->needs_sync_complete = 0;
6678 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6679 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6680 ipr_send_command(ipr_cmd);
6681 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6685 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6686 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6687 scsi_cmd->result = (DID_NO_CONNECT << 16);
6688 scsi_cmd->scsi_done(scsi_cmd);
6689 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6694 * ipr_ioctl - IOCTL handler
6695 * @sdev: scsi device struct
6700 * 0 on success / other on failure
6702 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6704 struct ipr_resource_entry *res;
6706 res = (struct ipr_resource_entry *)sdev->hostdata;
6707 if (res && ipr_is_gata(res)) {
6708 if (cmd == HDIO_GET_IDENTITY)
6710 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6717 * ipr_info - Get information about the card/driver
6718 * @scsi_host: scsi host struct
6721 * pointer to buffer with description string
6723 static const char *ipr_ioa_info(struct Scsi_Host *host)
6725 static char buffer[512];
6726 struct ipr_ioa_cfg *ioa_cfg;
6727 unsigned long lock_flags = 0;
6729 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6731 spin_lock_irqsave(host->host_lock, lock_flags);
6732 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6733 spin_unlock_irqrestore(host->host_lock, lock_flags);
6738 static struct scsi_host_template driver_template = {
6739 .module = THIS_MODULE,
6741 .info = ipr_ioa_info,
6743 .queuecommand = ipr_queuecommand,
6744 .eh_abort_handler = ipr_eh_abort,
6745 .eh_device_reset_handler = ipr_eh_dev_reset,
6746 .eh_host_reset_handler = ipr_eh_host_reset,
6747 .slave_alloc = ipr_slave_alloc,
6748 .slave_configure = ipr_slave_configure,
6749 .slave_destroy = ipr_slave_destroy,
6750 .scan_finished = ipr_scan_finished,
6751 .target_alloc = ipr_target_alloc,
6752 .target_destroy = ipr_target_destroy,
6753 .change_queue_depth = ipr_change_queue_depth,
6754 .bios_param = ipr_biosparam,
6755 .can_queue = IPR_MAX_COMMANDS,
6757 .sg_tablesize = IPR_MAX_SGLIST,
6758 .max_sectors = IPR_IOA_MAX_SECTORS,
6759 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6760 .use_clustering = ENABLE_CLUSTERING,
6761 .shost_attrs = ipr_ioa_attrs,
6762 .sdev_attrs = ipr_dev_attrs,
6763 .proc_name = IPR_NAME,
6767 * ipr_ata_phy_reset - libata phy_reset handler
6768 * @ap: ata port to reset
6771 static void ipr_ata_phy_reset(struct ata_port *ap)
6773 unsigned long flags;
6774 struct ipr_sata_port *sata_port = ap->private_data;
6775 struct ipr_resource_entry *res = sata_port->res;
6776 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6780 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6781 while (ioa_cfg->in_reset_reload) {
6782 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6783 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6784 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6787 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6790 rc = ipr_device_reset(ioa_cfg, res);
6793 ap->link.device[0].class = ATA_DEV_NONE;
6797 ap->link.device[0].class = res->ata_class;
6798 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6799 ap->link.device[0].class = ATA_DEV_NONE;
6802 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6807 * ipr_ata_post_internal - Cleanup after an internal command
6808 * @qc: ATA queued command
6813 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6815 struct ipr_sata_port *sata_port = qc->ap->private_data;
6816 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6817 struct ipr_cmnd *ipr_cmd;
6818 struct ipr_hrr_queue *hrrq;
6819 unsigned long flags;
6821 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6822 while (ioa_cfg->in_reset_reload) {
6823 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6824 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6825 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6828 for_each_hrrq(hrrq, ioa_cfg) {
6829 spin_lock(&hrrq->_lock);
6830 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6831 if (ipr_cmd->qc == qc) {
6832 ipr_device_reset(ioa_cfg, sata_port->res);
6836 spin_unlock(&hrrq->_lock);
6838 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6842 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6843 * @regs: destination
6844 * @tf: source ATA taskfile
6849 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6850 struct ata_taskfile *tf)
6852 regs->feature = tf->feature;
6853 regs->nsect = tf->nsect;
6854 regs->lbal = tf->lbal;
6855 regs->lbam = tf->lbam;
6856 regs->lbah = tf->lbah;
6857 regs->device = tf->device;
6858 regs->command = tf->command;
6859 regs->hob_feature = tf->hob_feature;
6860 regs->hob_nsect = tf->hob_nsect;
6861 regs->hob_lbal = tf->hob_lbal;
6862 regs->hob_lbam = tf->hob_lbam;
6863 regs->hob_lbah = tf->hob_lbah;
6864 regs->ctl = tf->ctl;
6868 * ipr_sata_done - done function for SATA commands
6869 * @ipr_cmd: ipr command struct
6871 * This function is invoked by the interrupt handler for
6872 * ops generated by the SCSI mid-layer to SATA devices
6877 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6879 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6880 struct ata_queued_cmd *qc = ipr_cmd->qc;
6881 struct ipr_sata_port *sata_port = qc->ap->private_data;
6882 struct ipr_resource_entry *res = sata_port->res;
6883 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6885 spin_lock(&ipr_cmd->hrrq->_lock);
6886 if (ipr_cmd->ioa_cfg->sis64)
6887 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6888 sizeof(struct ipr_ioasa_gata));
6890 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6891 sizeof(struct ipr_ioasa_gata));
6892 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6894 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6895 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6897 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6898 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6900 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6901 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6902 spin_unlock(&ipr_cmd->hrrq->_lock);
6903 ata_qc_complete(qc);
6907 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6908 * @ipr_cmd: ipr command struct
6909 * @qc: ATA queued command
6912 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6913 struct ata_queued_cmd *qc)
6915 u32 ioadl_flags = 0;
6916 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6917 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6918 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6919 int len = qc->nbytes;
6920 struct scatterlist *sg;
6922 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6927 if (qc->dma_dir == DMA_TO_DEVICE) {
6928 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6929 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6930 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6931 ioadl_flags = IPR_IOADL_FLAGS_READ;
6933 ioarcb->data_transfer_length = cpu_to_be32(len);
6935 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6936 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6937 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6939 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6940 ioadl64->flags = cpu_to_be32(ioadl_flags);
6941 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6942 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6944 last_ioadl64 = ioadl64;
6948 if (likely(last_ioadl64))
6949 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6953 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6954 * @ipr_cmd: ipr command struct
6955 * @qc: ATA queued command
6958 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6959 struct ata_queued_cmd *qc)
6961 u32 ioadl_flags = 0;
6962 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6963 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6964 struct ipr_ioadl_desc *last_ioadl = NULL;
6965 int len = qc->nbytes;
6966 struct scatterlist *sg;
6972 if (qc->dma_dir == DMA_TO_DEVICE) {
6973 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6974 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6975 ioarcb->data_transfer_length = cpu_to_be32(len);
6977 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6978 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6979 ioadl_flags = IPR_IOADL_FLAGS_READ;
6980 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6981 ioarcb->read_ioadl_len =
6982 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6985 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6986 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6987 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6993 if (likely(last_ioadl))
6994 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6998 * ipr_qc_defer - Get a free ipr_cmd
6999 * @qc: queued command
7004 static int ipr_qc_defer(struct ata_queued_cmd *qc)
7006 struct ata_port *ap = qc->ap;
7007 struct ipr_sata_port *sata_port = ap->private_data;
7008 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7009 struct ipr_cmnd *ipr_cmd;
7010 struct ipr_hrr_queue *hrrq;
7013 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
7014 hrrq = &ioa_cfg->hrrq[hrrq_id];
7016 qc->lldd_task = NULL;
7017 spin_lock(&hrrq->_lock);
7018 if (unlikely(hrrq->ioa_is_dead)) {
7019 spin_unlock(&hrrq->_lock);
7023 if (unlikely(!hrrq->allow_cmds)) {
7024 spin_unlock(&hrrq->_lock);
7025 return ATA_DEFER_LINK;
7028 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
7029 if (ipr_cmd == NULL) {
7030 spin_unlock(&hrrq->_lock);
7031 return ATA_DEFER_LINK;
7034 qc->lldd_task = ipr_cmd;
7035 spin_unlock(&hrrq->_lock);
7040 * ipr_qc_issue - Issue a SATA qc to a device
7041 * @qc: queued command
7046 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
7048 struct ata_port *ap = qc->ap;
7049 struct ipr_sata_port *sata_port = ap->private_data;
7050 struct ipr_resource_entry *res = sata_port->res;
7051 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7052 struct ipr_cmnd *ipr_cmd;
7053 struct ipr_ioarcb *ioarcb;
7054 struct ipr_ioarcb_ata_regs *regs;
7056 if (qc->lldd_task == NULL)
7059 ipr_cmd = qc->lldd_task;
7060 if (ipr_cmd == NULL)
7061 return AC_ERR_SYSTEM;
7063 qc->lldd_task = NULL;
7064 spin_lock(&ipr_cmd->hrrq->_lock);
7065 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
7066 ipr_cmd->hrrq->ioa_is_dead)) {
7067 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7068 spin_unlock(&ipr_cmd->hrrq->_lock);
7069 return AC_ERR_SYSTEM;
7072 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
7073 ioarcb = &ipr_cmd->ioarcb;
7075 if (ioa_cfg->sis64) {
7076 regs = &ipr_cmd->i.ata_ioadl.regs;
7077 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
7079 regs = &ioarcb->u.add_data.u.regs;
7081 memset(regs, 0, sizeof(*regs));
7082 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
7084 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
7086 ipr_cmd->done = ipr_sata_done;
7087 ipr_cmd->ioarcb.res_handle = res->res_handle;
7088 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
7089 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
7090 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
7091 ipr_cmd->dma_use_sg = qc->n_elem;
7094 ipr_build_ata_ioadl64(ipr_cmd, qc);
7096 ipr_build_ata_ioadl(ipr_cmd, qc);
7098 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
7099 ipr_copy_sata_tf(regs, &qc->tf);
7100 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
7101 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
7103 switch (qc->tf.protocol) {
7104 case ATA_PROT_NODATA:
7109 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7112 case ATAPI_PROT_PIO:
7113 case ATAPI_PROT_NODATA:
7114 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7117 case ATAPI_PROT_DMA:
7118 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7119 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7124 spin_unlock(&ipr_cmd->hrrq->_lock);
7125 return AC_ERR_INVALID;
7128 ipr_send_command(ipr_cmd);
7129 spin_unlock(&ipr_cmd->hrrq->_lock);
7135 * ipr_qc_fill_rtf - Read result TF
7136 * @qc: ATA queued command
7141 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
7143 struct ipr_sata_port *sata_port = qc->ap->private_data;
7144 struct ipr_ioasa_gata *g = &sata_port->ioasa;
7145 struct ata_taskfile *tf = &qc->result_tf;
7147 tf->feature = g->error;
7148 tf->nsect = g->nsect;
7152 tf->device = g->device;
7153 tf->command = g->status;
7154 tf->hob_nsect = g->hob_nsect;
7155 tf->hob_lbal = g->hob_lbal;
7156 tf->hob_lbam = g->hob_lbam;
7157 tf->hob_lbah = g->hob_lbah;
7162 static struct ata_port_operations ipr_sata_ops = {
7163 .phy_reset = ipr_ata_phy_reset,
7164 .hardreset = ipr_sata_reset,
7165 .post_internal_cmd = ipr_ata_post_internal,
7166 .qc_prep = ata_noop_qc_prep,
7167 .qc_defer = ipr_qc_defer,
7168 .qc_issue = ipr_qc_issue,
7169 .qc_fill_rtf = ipr_qc_fill_rtf,
7170 .port_start = ata_sas_port_start,
7171 .port_stop = ata_sas_port_stop
7174 static struct ata_port_info sata_port_info = {
7175 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
7177 .pio_mask = ATA_PIO4_ONLY,
7178 .mwdma_mask = ATA_MWDMA2,
7179 .udma_mask = ATA_UDMA6,
7180 .port_ops = &ipr_sata_ops
7183 #ifdef CONFIG_PPC_PSERIES
7184 static const u16 ipr_blocked_processors[] = {
7196 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
7197 * @ioa_cfg: ioa cfg struct
7199 * Adapters that use Gemstone revision < 3.1 do not work reliably on
7200 * certain pSeries hardware. This function determines if the given
7201 * adapter is in one of these confgurations or not.
7204 * 1 if adapter is not supported / 0 if adapter is supported
7206 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
7210 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
7211 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
7212 if (pvr_version_is(ipr_blocked_processors[i]))
7219 #define ipr_invalid_adapter(ioa_cfg) 0
7223 * ipr_ioa_bringdown_done - IOA bring down completion.
7224 * @ipr_cmd: ipr command struct
7226 * This function processes the completion of an adapter bring down.
7227 * It wakes any reset sleepers.
7232 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
7234 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7238 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
7240 ioa_cfg->scsi_unblock = 1;
7241 schedule_work(&ioa_cfg->work_q);
7244 ioa_cfg->in_reset_reload = 0;
7245 ioa_cfg->reset_retries = 0;
7246 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7247 spin_lock(&ioa_cfg->hrrq[i]._lock);
7248 ioa_cfg->hrrq[i].ioa_is_dead = 1;
7249 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7253 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7254 wake_up_all(&ioa_cfg->reset_wait_q);
7257 return IPR_RC_JOB_RETURN;
7261 * ipr_ioa_reset_done - IOA reset completion.
7262 * @ipr_cmd: ipr command struct
7264 * This function processes the completion of an adapter reset.
7265 * It schedules any necessary mid-layer add/removes and
7266 * wakes any reset sleepers.
7271 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7273 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7274 struct ipr_resource_entry *res;
7278 ioa_cfg->in_reset_reload = 0;
7279 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7280 spin_lock(&ioa_cfg->hrrq[j]._lock);
7281 ioa_cfg->hrrq[j].allow_cmds = 1;
7282 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7285 ioa_cfg->reset_cmd = NULL;
7286 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7288 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7289 if (res->add_to_ml || res->del_from_ml) {
7294 schedule_work(&ioa_cfg->work_q);
7296 for (j = 0; j < IPR_NUM_HCAMS; j++) {
7297 list_del_init(&ioa_cfg->hostrcb[j]->queue);
7298 if (j < IPR_NUM_LOG_HCAMS)
7299 ipr_send_hcam(ioa_cfg,
7300 IPR_HCAM_CDB_OP_CODE_LOG_DATA,
7301 ioa_cfg->hostrcb[j]);
7303 ipr_send_hcam(ioa_cfg,
7304 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
7305 ioa_cfg->hostrcb[j]);
7308 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7309 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7311 ioa_cfg->reset_retries = 0;
7312 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7313 wake_up_all(&ioa_cfg->reset_wait_q);
7315 ioa_cfg->scsi_unblock = 1;
7316 schedule_work(&ioa_cfg->work_q);
7318 return IPR_RC_JOB_RETURN;
7322 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7323 * @supported_dev: supported device struct
7324 * @vpids: vendor product id struct
7329 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7330 struct ipr_std_inq_vpids *vpids)
7332 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7333 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7334 supported_dev->num_records = 1;
7335 supported_dev->data_length =
7336 cpu_to_be16(sizeof(struct ipr_supported_device));
7337 supported_dev->reserved = 0;
7341 * ipr_set_supported_devs - Send Set Supported Devices for a device
7342 * @ipr_cmd: ipr command struct
7344 * This function sends a Set Supported Devices to the adapter
7347 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7349 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7351 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7352 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7353 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7354 struct ipr_resource_entry *res = ipr_cmd->u.res;
7356 ipr_cmd->job_step = ipr_ioa_reset_done;
7358 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7359 if (!ipr_is_scsi_disk(res))
7362 ipr_cmd->u.res = res;
7363 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7365 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7366 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7367 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7369 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7370 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7371 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7372 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7374 ipr_init_ioadl(ipr_cmd,
7375 ioa_cfg->vpd_cbs_dma +
7376 offsetof(struct ipr_misc_cbs, supp_dev),
7377 sizeof(struct ipr_supported_device),
7378 IPR_IOADL_FLAGS_WRITE_LAST);
7380 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7381 IPR_SET_SUP_DEVICE_TIMEOUT);
7383 if (!ioa_cfg->sis64)
7384 ipr_cmd->job_step = ipr_set_supported_devs;
7386 return IPR_RC_JOB_RETURN;
7390 return IPR_RC_JOB_CONTINUE;
7394 * ipr_get_mode_page - Locate specified mode page
7395 * @mode_pages: mode page buffer
7396 * @page_code: page code to find
7397 * @len: minimum required length for mode page
7400 * pointer to mode page / NULL on failure
7402 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7403 u32 page_code, u32 len)
7405 struct ipr_mode_page_hdr *mode_hdr;
7409 if (!mode_pages || (mode_pages->hdr.length == 0))
7412 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7413 mode_hdr = (struct ipr_mode_page_hdr *)
7414 (mode_pages->data + mode_pages->hdr.block_desc_len);
7417 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7418 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7422 page_length = (sizeof(struct ipr_mode_page_hdr) +
7423 mode_hdr->page_length);
7424 length -= page_length;
7425 mode_hdr = (struct ipr_mode_page_hdr *)
7426 ((unsigned long)mode_hdr + page_length);
7433 * ipr_check_term_power - Check for term power errors
7434 * @ioa_cfg: ioa config struct
7435 * @mode_pages: IOAFP mode pages buffer
7437 * Check the IOAFP's mode page 28 for term power errors
7442 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7443 struct ipr_mode_pages *mode_pages)
7447 struct ipr_dev_bus_entry *bus;
7448 struct ipr_mode_page28 *mode_page;
7450 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7451 sizeof(struct ipr_mode_page28));
7453 entry_length = mode_page->entry_length;
7455 bus = mode_page->bus;
7457 for (i = 0; i < mode_page->num_entries; i++) {
7458 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7459 dev_err(&ioa_cfg->pdev->dev,
7460 "Term power is absent on scsi bus %d\n",
7464 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7469 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7470 * @ioa_cfg: ioa config struct
7472 * Looks through the config table checking for SES devices. If
7473 * the SES device is in the SES table indicating a maximum SCSI
7474 * bus speed, the speed is limited for the bus.
7479 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7484 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7485 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7486 ioa_cfg->bus_attr[i].bus_width);
7488 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7489 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7494 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7495 * @ioa_cfg: ioa config struct
7496 * @mode_pages: mode page 28 buffer
7498 * Updates mode page 28 based on driver configuration
7503 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7504 struct ipr_mode_pages *mode_pages)
7506 int i, entry_length;
7507 struct ipr_dev_bus_entry *bus;
7508 struct ipr_bus_attributes *bus_attr;
7509 struct ipr_mode_page28 *mode_page;
7511 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7512 sizeof(struct ipr_mode_page28));
7514 entry_length = mode_page->entry_length;
7516 /* Loop for each device bus entry */
7517 for (i = 0, bus = mode_page->bus;
7518 i < mode_page->num_entries;
7519 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7520 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7521 dev_err(&ioa_cfg->pdev->dev,
7522 "Invalid resource address reported: 0x%08X\n",
7523 IPR_GET_PHYS_LOC(bus->res_addr));
7527 bus_attr = &ioa_cfg->bus_attr[i];
7528 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7529 bus->bus_width = bus_attr->bus_width;
7530 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7531 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7532 if (bus_attr->qas_enabled)
7533 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7535 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7540 * ipr_build_mode_select - Build a mode select command
7541 * @ipr_cmd: ipr command struct
7542 * @res_handle: resource handle to send command to
7543 * @parm: Byte 2 of Mode Sense command
7544 * @dma_addr: DMA buffer address
7545 * @xfer_len: data transfer length
7550 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7551 __be32 res_handle, u8 parm,
7552 dma_addr_t dma_addr, u8 xfer_len)
7554 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7556 ioarcb->res_handle = res_handle;
7557 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7558 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7559 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7560 ioarcb->cmd_pkt.cdb[1] = parm;
7561 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7563 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7567 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7568 * @ipr_cmd: ipr command struct
7570 * This function sets up the SCSI bus attributes and sends
7571 * a Mode Select for Page 28 to activate them.
7576 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7579 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7583 ipr_scsi_bus_speed_limit(ioa_cfg);
7584 ipr_check_term_power(ioa_cfg, mode_pages);
7585 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7586 length = mode_pages->hdr.length + 1;
7587 mode_pages->hdr.length = 0;
7589 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7590 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7593 ipr_cmd->job_step = ipr_set_supported_devs;
7594 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7595 struct ipr_resource_entry, queue);
7596 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7599 return IPR_RC_JOB_RETURN;
7603 * ipr_build_mode_sense - Builds a mode sense command
7604 * @ipr_cmd: ipr command struct
7605 * @res: resource entry struct
7606 * @parm: Byte 2 of mode sense command
7607 * @dma_addr: DMA address of mode sense buffer
7608 * @xfer_len: Size of DMA buffer
7613 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7615 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7617 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7619 ioarcb->res_handle = res_handle;
7620 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7621 ioarcb->cmd_pkt.cdb[2] = parm;
7622 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7623 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7625 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7629 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7630 * @ipr_cmd: ipr command struct
7632 * This function handles the failure of an IOA bringup command.
7637 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7639 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7640 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7642 dev_err(&ioa_cfg->pdev->dev,
7643 "0x%02X failed with IOASC: 0x%08X\n",
7644 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7646 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7647 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7648 return IPR_RC_JOB_RETURN;
7652 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7653 * @ipr_cmd: ipr command struct
7655 * This function handles the failure of a Mode Sense to the IOAFP.
7656 * Some adapters do not handle all mode pages.
7659 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7661 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7663 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7664 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7666 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7667 ipr_cmd->job_step = ipr_set_supported_devs;
7668 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7669 struct ipr_resource_entry, queue);
7670 return IPR_RC_JOB_CONTINUE;
7673 return ipr_reset_cmd_failed(ipr_cmd);
7677 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7678 * @ipr_cmd: ipr command struct
7680 * This function send a Page 28 mode sense to the IOA to
7681 * retrieve SCSI bus attributes.
7686 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7688 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7691 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7692 0x28, ioa_cfg->vpd_cbs_dma +
7693 offsetof(struct ipr_misc_cbs, mode_pages),
7694 sizeof(struct ipr_mode_pages));
7696 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7697 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7699 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7702 return IPR_RC_JOB_RETURN;
7706 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7707 * @ipr_cmd: ipr command struct
7709 * This function enables dual IOA RAID support if possible.
7714 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7716 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7717 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7718 struct ipr_mode_page24 *mode_page;
7722 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7723 sizeof(struct ipr_mode_page24));
7726 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7728 length = mode_pages->hdr.length + 1;
7729 mode_pages->hdr.length = 0;
7731 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7732 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7735 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7736 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7739 return IPR_RC_JOB_RETURN;
7743 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7744 * @ipr_cmd: ipr command struct
7746 * This function handles the failure of a Mode Sense to the IOAFP.
7747 * Some adapters do not handle all mode pages.
7750 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7752 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7754 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7756 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7757 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7758 return IPR_RC_JOB_CONTINUE;
7761 return ipr_reset_cmd_failed(ipr_cmd);
7765 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7766 * @ipr_cmd: ipr command struct
7768 * This function send a mode sense to the IOA to retrieve
7769 * the IOA Advanced Function Control mode page.
7774 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7779 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7780 0x24, ioa_cfg->vpd_cbs_dma +
7781 offsetof(struct ipr_misc_cbs, mode_pages),
7782 sizeof(struct ipr_mode_pages));
7784 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7785 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7787 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7790 return IPR_RC_JOB_RETURN;
7794 * ipr_init_res_table - Initialize the resource table
7795 * @ipr_cmd: ipr command struct
7797 * This function looks through the existing resource table, comparing
7798 * it with the config table. This function will take care of old/new
7799 * devices and schedule adding/removing them from the mid-layer
7803 * IPR_RC_JOB_CONTINUE
7805 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7807 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7808 struct ipr_resource_entry *res, *temp;
7809 struct ipr_config_table_entry_wrapper cfgtew;
7810 int entries, found, flag, i;
7815 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7817 flag = ioa_cfg->u.cfg_table->hdr.flags;
7819 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7820 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7822 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7823 list_move_tail(&res->queue, &old_res);
7826 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7828 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7830 for (i = 0; i < entries; i++) {
7832 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7834 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7837 list_for_each_entry_safe(res, temp, &old_res, queue) {
7838 if (ipr_is_same_device(res, &cfgtew)) {
7839 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7846 if (list_empty(&ioa_cfg->free_res_q)) {
7847 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7852 res = list_entry(ioa_cfg->free_res_q.next,
7853 struct ipr_resource_entry, queue);
7854 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7855 ipr_init_res_entry(res, &cfgtew);
7857 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7858 res->sdev->allow_restart = 1;
7861 ipr_update_res_entry(res, &cfgtew);
7864 list_for_each_entry_safe(res, temp, &old_res, queue) {
7866 res->del_from_ml = 1;
7867 res->res_handle = IPR_INVALID_RES_HANDLE;
7868 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7872 list_for_each_entry_safe(res, temp, &old_res, queue) {
7873 ipr_clear_res_target(res);
7874 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7877 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7878 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7880 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7883 return IPR_RC_JOB_CONTINUE;
7887 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7888 * @ipr_cmd: ipr command struct
7890 * This function sends a Query IOA Configuration command
7891 * to the adapter to retrieve the IOA configuration table.
7896 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7898 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7899 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7900 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7901 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7904 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7905 ioa_cfg->dual_raid = 1;
7906 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7907 ucode_vpd->major_release, ucode_vpd->card_type,
7908 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7909 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7910 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7912 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7913 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7914 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7915 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7917 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7918 IPR_IOADL_FLAGS_READ_LAST);
7920 ipr_cmd->job_step = ipr_init_res_table;
7922 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7925 return IPR_RC_JOB_RETURN;
7928 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7930 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7932 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7933 return IPR_RC_JOB_CONTINUE;
7935 return ipr_reset_cmd_failed(ipr_cmd);
7938 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7939 __be32 res_handle, u8 sa_code)
7941 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7943 ioarcb->res_handle = res_handle;
7944 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7945 ioarcb->cmd_pkt.cdb[1] = sa_code;
7946 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7950 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7956 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7958 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7959 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7960 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7964 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7966 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7967 ipr_build_ioa_service_action(ipr_cmd,
7968 cpu_to_be32(IPR_IOA_RES_HANDLE),
7969 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7971 ioarcb->cmd_pkt.cdb[2] = 0x40;
7973 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7974 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7975 IPR_SET_SUP_DEVICE_TIMEOUT);
7978 return IPR_RC_JOB_RETURN;
7982 return IPR_RC_JOB_CONTINUE;
7986 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7987 * @ipr_cmd: ipr command struct
7989 * This utility function sends an inquiry to the adapter.
7994 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7995 dma_addr_t dma_addr, u8 xfer_len)
7997 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
8000 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8001 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8003 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
8004 ioarcb->cmd_pkt.cdb[1] = flags;
8005 ioarcb->cmd_pkt.cdb[2] = page;
8006 ioarcb->cmd_pkt.cdb[4] = xfer_len;
8008 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
8010 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
8015 * ipr_inquiry_page_supported - Is the given inquiry page supported
8016 * @page0: inquiry page 0 buffer
8019 * This function determines if the specified inquiry page is supported.
8022 * 1 if page is supported / 0 if not
8024 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
8028 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
8029 if (page0->page[i] == page)
8036 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
8037 * @ipr_cmd: ipr command struct
8039 * This function sends a Page 0xC4 inquiry to the adapter
8040 * to retrieve software VPD information.
8043 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8045 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
8047 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8048 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8049 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
8052 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
8053 memset(pageC4, 0, sizeof(*pageC4));
8055 if (ipr_inquiry_page_supported(page0, 0xC4)) {
8056 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
8057 (ioa_cfg->vpd_cbs_dma
8058 + offsetof(struct ipr_misc_cbs,
8060 sizeof(struct ipr_inquiry_pageC4));
8061 return IPR_RC_JOB_RETURN;
8065 return IPR_RC_JOB_CONTINUE;
8069 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
8070 * @ipr_cmd: ipr command struct
8072 * This function sends a Page 0xD0 inquiry to the adapter
8073 * to retrieve adapter capabilities.
8076 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8078 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
8080 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8081 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8082 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
8085 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
8086 memset(cap, 0, sizeof(*cap));
8088 if (ipr_inquiry_page_supported(page0, 0xD0)) {
8089 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
8090 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
8091 sizeof(struct ipr_inquiry_cap));
8092 return IPR_RC_JOB_RETURN;
8096 return IPR_RC_JOB_CONTINUE;
8100 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
8101 * @ipr_cmd: ipr command struct
8103 * This function sends a Page 3 inquiry to the adapter
8104 * to retrieve software VPD information.
8107 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8109 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
8111 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8115 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
8117 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
8118 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
8119 sizeof(struct ipr_inquiry_page3));
8122 return IPR_RC_JOB_RETURN;
8126 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
8127 * @ipr_cmd: ipr command struct
8129 * This function sends a Page 0 inquiry to the adapter
8130 * to retrieve supported inquiry pages.
8133 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8135 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
8137 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8142 /* Grab the type out of the VPD and store it away */
8143 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
8145 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
8147 if (ipr_invalid_adapter(ioa_cfg)) {
8148 dev_err(&ioa_cfg->pdev->dev,
8149 "Adapter not supported in this hardware configuration.\n");
8151 if (!ipr_testmode) {
8152 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
8153 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8154 list_add_tail(&ipr_cmd->queue,
8155 &ioa_cfg->hrrq->hrrq_free_q);
8156 return IPR_RC_JOB_RETURN;
8160 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
8162 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
8163 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
8164 sizeof(struct ipr_inquiry_page0));
8167 return IPR_RC_JOB_RETURN;
8171 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
8172 * @ipr_cmd: ipr command struct
8174 * This function sends a standard inquiry to the adapter.
8179 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
8181 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8184 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
8186 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
8187 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
8188 sizeof(struct ipr_ioa_vpd));
8191 return IPR_RC_JOB_RETURN;
8195 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
8196 * @ipr_cmd: ipr command struct
8198 * This function send an Identify Host Request Response Queue
8199 * command to establish the HRRQ with the adapter.
8204 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
8206 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8207 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
8208 struct ipr_hrr_queue *hrrq;
8211 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
8212 if (ioa_cfg->identify_hrrq_index == 0)
8213 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
8215 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
8216 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
8218 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
8219 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8221 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8223 ioarcb->cmd_pkt.cdb[1] = 0x1;
8225 if (ioa_cfg->nvectors == 1)
8226 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
8228 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
8230 ioarcb->cmd_pkt.cdb[2] =
8231 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
8232 ioarcb->cmd_pkt.cdb[3] =
8233 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
8234 ioarcb->cmd_pkt.cdb[4] =
8235 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
8236 ioarcb->cmd_pkt.cdb[5] =
8237 ((u64) hrrq->host_rrq_dma) & 0xff;
8238 ioarcb->cmd_pkt.cdb[7] =
8239 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
8240 ioarcb->cmd_pkt.cdb[8] =
8241 (sizeof(u32) * hrrq->size) & 0xff;
8243 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8244 ioarcb->cmd_pkt.cdb[9] =
8245 ioa_cfg->identify_hrrq_index;
8247 if (ioa_cfg->sis64) {
8248 ioarcb->cmd_pkt.cdb[10] =
8249 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8250 ioarcb->cmd_pkt.cdb[11] =
8251 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8252 ioarcb->cmd_pkt.cdb[12] =
8253 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8254 ioarcb->cmd_pkt.cdb[13] =
8255 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8258 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8259 ioarcb->cmd_pkt.cdb[14] =
8260 ioa_cfg->identify_hrrq_index;
8262 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8263 IPR_INTERNAL_TIMEOUT);
8265 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8266 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8269 return IPR_RC_JOB_RETURN;
8273 return IPR_RC_JOB_CONTINUE;
8277 * ipr_reset_timer_done - Adapter reset timer function
8278 * @ipr_cmd: ipr command struct
8280 * Description: This function is used in adapter reset processing
8281 * for timing events. If the reset_cmd pointer in the IOA
8282 * config struct is not this adapter's we are doing nested
8283 * resets and fail_all_ops will take care of freeing the
8289 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8291 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8292 unsigned long lock_flags = 0;
8294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8296 if (ioa_cfg->reset_cmd == ipr_cmd) {
8297 list_del(&ipr_cmd->queue);
8298 ipr_cmd->done(ipr_cmd);
8301 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8305 * ipr_reset_start_timer - Start a timer for adapter reset job
8306 * @ipr_cmd: ipr command struct
8307 * @timeout: timeout value
8309 * Description: This function is used in adapter reset processing
8310 * for timing events. If the reset_cmd pointer in the IOA
8311 * config struct is not this adapter's we are doing nested
8312 * resets and fail_all_ops will take care of freeing the
8318 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8319 unsigned long timeout)
8323 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8324 ipr_cmd->done = ipr_reset_ioa_job;
8326 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8327 ipr_cmd->timer.expires = jiffies + timeout;
8328 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8329 add_timer(&ipr_cmd->timer);
8333 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8334 * @ioa_cfg: ioa cfg struct
8339 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8341 struct ipr_hrr_queue *hrrq;
8343 for_each_hrrq(hrrq, ioa_cfg) {
8344 spin_lock(&hrrq->_lock);
8345 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8347 /* Initialize Host RRQ pointers */
8348 hrrq->hrrq_start = hrrq->host_rrq;
8349 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8350 hrrq->hrrq_curr = hrrq->hrrq_start;
8351 hrrq->toggle_bit = 1;
8352 spin_unlock(&hrrq->_lock);
8356 ioa_cfg->identify_hrrq_index = 0;
8357 if (ioa_cfg->hrrq_num == 1)
8358 atomic_set(&ioa_cfg->hrrq_index, 0);
8360 atomic_set(&ioa_cfg->hrrq_index, 1);
8362 /* Zero out config table */
8363 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8367 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8368 * @ipr_cmd: ipr command struct
8371 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8373 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8375 unsigned long stage, stage_time;
8377 volatile u32 int_reg;
8378 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8381 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8382 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8383 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8385 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8387 /* sanity check the stage_time value */
8388 if (stage_time == 0)
8389 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8390 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8391 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8392 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8393 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8395 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8396 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8397 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8398 stage_time = ioa_cfg->transop_timeout;
8399 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8400 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8401 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8402 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8403 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8404 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8405 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8406 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8407 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8408 return IPR_RC_JOB_CONTINUE;
8412 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8413 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8414 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8415 ipr_cmd->done = ipr_reset_ioa_job;
8416 add_timer(&ipr_cmd->timer);
8418 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8420 return IPR_RC_JOB_RETURN;
8424 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8425 * @ipr_cmd: ipr command struct
8427 * This function reinitializes some control blocks and
8428 * enables destructive diagnostics on the adapter.
8433 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8436 volatile u32 int_reg;
8437 volatile u64 maskval;
8441 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8442 ipr_init_ioa_mem(ioa_cfg);
8444 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8445 spin_lock(&ioa_cfg->hrrq[i]._lock);
8446 ioa_cfg->hrrq[i].allow_interrupts = 1;
8447 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8450 if (ioa_cfg->sis64) {
8451 /* Set the adapter to the correct endian mode. */
8452 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8453 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8456 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8458 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8459 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8460 ioa_cfg->regs.clr_interrupt_mask_reg32);
8461 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8462 return IPR_RC_JOB_CONTINUE;
8465 /* Enable destructive diagnostics on IOA */
8466 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8468 if (ioa_cfg->sis64) {
8469 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8470 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8471 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8473 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8475 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8477 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8479 if (ioa_cfg->sis64) {
8480 ipr_cmd->job_step = ipr_reset_next_stage;
8481 return IPR_RC_JOB_CONTINUE;
8484 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8485 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8486 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8487 ipr_cmd->done = ipr_reset_ioa_job;
8488 add_timer(&ipr_cmd->timer);
8489 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8492 return IPR_RC_JOB_RETURN;
8496 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8497 * @ipr_cmd: ipr command struct
8499 * This function is invoked when an adapter dump has run out
8500 * of processing time.
8503 * IPR_RC_JOB_CONTINUE
8505 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8507 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8509 if (ioa_cfg->sdt_state == GET_DUMP)
8510 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8511 else if (ioa_cfg->sdt_state == READ_DUMP)
8512 ioa_cfg->sdt_state = ABORT_DUMP;
8514 ioa_cfg->dump_timeout = 1;
8515 ipr_cmd->job_step = ipr_reset_alert;
8517 return IPR_RC_JOB_CONTINUE;
8521 * ipr_unit_check_no_data - Log a unit check/no data error log
8522 * @ioa_cfg: ioa config struct
8524 * Logs an error indicating the adapter unit checked, but for some
8525 * reason, we were unable to fetch the unit check buffer.
8530 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8532 ioa_cfg->errors_logged++;
8533 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8537 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8538 * @ioa_cfg: ioa config struct
8540 * Fetches the unit check buffer from the adapter by clocking the data
8541 * through the mailbox register.
8546 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8548 unsigned long mailbox;
8549 struct ipr_hostrcb *hostrcb;
8550 struct ipr_uc_sdt sdt;
8554 mailbox = readl(ioa_cfg->ioa_mailbox);
8556 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8557 ipr_unit_check_no_data(ioa_cfg);
8561 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8562 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8563 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8565 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8566 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8567 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8568 ipr_unit_check_no_data(ioa_cfg);
8572 /* Find length of the first sdt entry (UC buffer) */
8573 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8574 length = be32_to_cpu(sdt.entry[0].end_token);
8576 length = (be32_to_cpu(sdt.entry[0].end_token) -
8577 be32_to_cpu(sdt.entry[0].start_token)) &
8578 IPR_FMT2_MBX_ADDR_MASK;
8580 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8581 struct ipr_hostrcb, queue);
8582 list_del_init(&hostrcb->queue);
8583 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8585 rc = ipr_get_ldump_data_section(ioa_cfg,
8586 be32_to_cpu(sdt.entry[0].start_token),
8587 (__be32 *)&hostrcb->hcam,
8588 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8591 ipr_handle_log_data(ioa_cfg, hostrcb);
8592 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8593 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8594 ioa_cfg->sdt_state == GET_DUMP)
8595 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8597 ipr_unit_check_no_data(ioa_cfg);
8599 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8603 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8604 * @ipr_cmd: ipr command struct
8606 * Description: This function will call to get the unit check buffer.
8611 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8613 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8616 ioa_cfg->ioa_unit_checked = 0;
8617 ipr_get_unit_check_buffer(ioa_cfg);
8618 ipr_cmd->job_step = ipr_reset_alert;
8619 ipr_reset_start_timer(ipr_cmd, 0);
8622 return IPR_RC_JOB_RETURN;
8625 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8631 if (ioa_cfg->sdt_state != GET_DUMP)
8632 return IPR_RC_JOB_RETURN;
8634 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8635 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8636 IPR_PCII_MAILBOX_STABLE)) {
8638 if (!ipr_cmd->u.time_left)
8639 dev_err(&ioa_cfg->pdev->dev,
8640 "Timed out waiting for Mailbox register.\n");
8642 ioa_cfg->sdt_state = READ_DUMP;
8643 ioa_cfg->dump_timeout = 0;
8645 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8647 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8648 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8649 schedule_work(&ioa_cfg->work_q);
8652 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8653 ipr_reset_start_timer(ipr_cmd,
8654 IPR_CHECK_FOR_RESET_TIMEOUT);
8658 return IPR_RC_JOB_RETURN;
8662 * ipr_reset_restore_cfg_space - Restore PCI config space.
8663 * @ipr_cmd: ipr command struct
8665 * Description: This function restores the saved PCI config space of
8666 * the adapter, fails all outstanding ops back to the callers, and
8667 * fetches the dump/unit check if applicable to this reset.
8670 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8672 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8678 ioa_cfg->pdev->state_saved = true;
8679 pci_restore_state(ioa_cfg->pdev);
8681 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8682 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8683 return IPR_RC_JOB_CONTINUE;
8686 ipr_fail_all_ops(ioa_cfg);
8688 if (ioa_cfg->sis64) {
8689 /* Set the adapter to the correct endian mode. */
8690 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8691 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8694 if (ioa_cfg->ioa_unit_checked) {
8695 if (ioa_cfg->sis64) {
8696 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8697 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8698 return IPR_RC_JOB_RETURN;
8700 ioa_cfg->ioa_unit_checked = 0;
8701 ipr_get_unit_check_buffer(ioa_cfg);
8702 ipr_cmd->job_step = ipr_reset_alert;
8703 ipr_reset_start_timer(ipr_cmd, 0);
8704 return IPR_RC_JOB_RETURN;
8708 if (ioa_cfg->in_ioa_bringdown) {
8709 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8710 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8711 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8712 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8714 ipr_cmd->job_step = ipr_reset_enable_ioa;
8718 return IPR_RC_JOB_CONTINUE;
8722 * ipr_reset_bist_done - BIST has completed on the adapter.
8723 * @ipr_cmd: ipr command struct
8725 * Description: Unblock config space and resume the reset process.
8728 * IPR_RC_JOB_CONTINUE
8730 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8735 if (ioa_cfg->cfg_locked)
8736 pci_cfg_access_unlock(ioa_cfg->pdev);
8737 ioa_cfg->cfg_locked = 0;
8738 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8740 return IPR_RC_JOB_CONTINUE;
8744 * ipr_reset_start_bist - Run BIST on the adapter.
8745 * @ipr_cmd: ipr command struct
8747 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8750 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8752 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8754 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8755 int rc = PCIBIOS_SUCCESSFUL;
8758 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8759 writel(IPR_UPROCI_SIS64_START_BIST,
8760 ioa_cfg->regs.set_uproc_interrupt_reg32);
8762 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8764 if (rc == PCIBIOS_SUCCESSFUL) {
8765 ipr_cmd->job_step = ipr_reset_bist_done;
8766 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8767 rc = IPR_RC_JOB_RETURN;
8769 if (ioa_cfg->cfg_locked)
8770 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8771 ioa_cfg->cfg_locked = 0;
8772 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8773 rc = IPR_RC_JOB_CONTINUE;
8781 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8782 * @ipr_cmd: ipr command struct
8784 * Description: This clears PCI reset to the adapter and delays two seconds.
8789 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8792 ipr_cmd->job_step = ipr_reset_bist_done;
8793 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8795 return IPR_RC_JOB_RETURN;
8799 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8800 * @work: work struct
8802 * Description: This pulses warm reset to a slot.
8805 static void ipr_reset_reset_work(struct work_struct *work)
8807 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8808 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8809 struct pci_dev *pdev = ioa_cfg->pdev;
8810 unsigned long lock_flags = 0;
8813 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8814 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8815 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8817 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8818 if (ioa_cfg->reset_cmd == ipr_cmd)
8819 ipr_reset_ioa_job(ipr_cmd);
8820 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8825 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8826 * @ipr_cmd: ipr command struct
8828 * Description: This asserts PCI reset to the adapter.
8833 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8838 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8839 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8840 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8842 return IPR_RC_JOB_RETURN;
8846 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8847 * @ipr_cmd: ipr command struct
8849 * Description: This attempts to block config access to the IOA.
8852 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8854 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8856 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8857 int rc = IPR_RC_JOB_CONTINUE;
8859 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8860 ioa_cfg->cfg_locked = 1;
8861 ipr_cmd->job_step = ioa_cfg->reset;
8863 if (ipr_cmd->u.time_left) {
8864 rc = IPR_RC_JOB_RETURN;
8865 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8866 ipr_reset_start_timer(ipr_cmd,
8867 IPR_CHECK_FOR_RESET_TIMEOUT);
8869 ipr_cmd->job_step = ioa_cfg->reset;
8870 dev_err(&ioa_cfg->pdev->dev,
8871 "Timed out waiting to lock config access. Resetting anyway.\n");
8879 * ipr_reset_block_config_access - Block config access to the IOA
8880 * @ipr_cmd: ipr command struct
8882 * Description: This attempts to block config access to the IOA
8885 * IPR_RC_JOB_CONTINUE
8887 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8889 ipr_cmd->ioa_cfg->cfg_locked = 0;
8890 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8891 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8892 return IPR_RC_JOB_CONTINUE;
8896 * ipr_reset_allowed - Query whether or not IOA can be reset
8897 * @ioa_cfg: ioa config struct
8900 * 0 if reset not allowed / non-zero if reset is allowed
8902 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8904 volatile u32 temp_reg;
8906 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8907 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8911 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8912 * @ipr_cmd: ipr command struct
8914 * Description: This function waits for adapter permission to run BIST,
8915 * then runs BIST. If the adapter does not give permission after a
8916 * reasonable time, we will reset the adapter anyway. The impact of
8917 * resetting the adapter without warning the adapter is the risk of
8918 * losing the persistent error log on the adapter. If the adapter is
8919 * reset while it is writing to the flash on the adapter, the flash
8920 * segment will have bad ECC and be zeroed.
8923 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8925 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8927 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8928 int rc = IPR_RC_JOB_RETURN;
8930 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8931 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8932 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8934 ipr_cmd->job_step = ipr_reset_block_config_access;
8935 rc = IPR_RC_JOB_CONTINUE;
8942 * ipr_reset_alert - Alert the adapter of a pending reset
8943 * @ipr_cmd: ipr command struct
8945 * Description: This function alerts the adapter that it will be reset.
8946 * If memory space is not currently enabled, proceed directly
8947 * to running BIST on the adapter. The timer must always be started
8948 * so we guarantee we do not run BIST from ipr_isr.
8953 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8955 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8960 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8962 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8963 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8964 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8965 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8967 ipr_cmd->job_step = ipr_reset_block_config_access;
8970 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8971 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8974 return IPR_RC_JOB_RETURN;
8978 * ipr_reset_quiesce_done - Complete IOA disconnect
8979 * @ipr_cmd: ipr command struct
8981 * Description: Freeze the adapter to complete quiesce processing
8984 * IPR_RC_JOB_CONTINUE
8986 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8988 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8991 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8992 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8994 return IPR_RC_JOB_CONTINUE;
8998 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8999 * @ipr_cmd: ipr command struct
9001 * Description: Ensure nothing is outstanding to the IOA and
9002 * proceed with IOA disconnect. Otherwise reset the IOA.
9005 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
9007 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
9009 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9010 struct ipr_cmnd *loop_cmd;
9011 struct ipr_hrr_queue *hrrq;
9012 int rc = IPR_RC_JOB_CONTINUE;
9016 ipr_cmd->job_step = ipr_reset_quiesce_done;
9018 for_each_hrrq(hrrq, ioa_cfg) {
9019 spin_lock(&hrrq->_lock);
9020 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
9022 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9023 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9024 rc = IPR_RC_JOB_RETURN;
9027 spin_unlock(&hrrq->_lock);
9038 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
9039 * @ipr_cmd: ipr command struct
9041 * Description: Cancel any oustanding HCAMs to the IOA.
9044 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9046 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
9048 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9049 int rc = IPR_RC_JOB_CONTINUE;
9050 struct ipr_cmd_pkt *cmd_pkt;
9051 struct ipr_cmnd *hcam_cmd;
9052 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
9055 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
9057 if (!hrrq->ioa_is_dead) {
9058 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
9059 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
9060 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
9063 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9064 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9065 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
9066 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
9067 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
9068 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
9069 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
9070 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
9071 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
9072 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
9073 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
9074 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
9075 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
9076 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
9078 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9079 IPR_CANCEL_TIMEOUT);
9081 rc = IPR_RC_JOB_RETURN;
9082 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9087 ipr_cmd->job_step = ipr_reset_alert;
9094 * ipr_reset_ucode_download_done - Microcode download completion
9095 * @ipr_cmd: ipr command struct
9097 * Description: This function unmaps the microcode download buffer.
9100 * IPR_RC_JOB_CONTINUE
9102 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
9104 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9105 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9107 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
9108 sglist->num_sg, DMA_TO_DEVICE);
9110 ipr_cmd->job_step = ipr_reset_alert;
9111 return IPR_RC_JOB_CONTINUE;
9115 * ipr_reset_ucode_download - Download microcode to the adapter
9116 * @ipr_cmd: ipr command struct
9118 * Description: This function checks to see if it there is microcode
9119 * to download to the adapter. If there is, a download is performed.
9122 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9124 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
9126 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9127 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9130 ipr_cmd->job_step = ipr_reset_alert;
9133 return IPR_RC_JOB_CONTINUE;
9135 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9136 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
9137 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
9138 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
9139 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
9140 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
9141 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
9144 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
9146 ipr_build_ucode_ioadl(ipr_cmd, sglist);
9147 ipr_cmd->job_step = ipr_reset_ucode_download_done;
9149 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9150 IPR_WRITE_BUFFER_TIMEOUT);
9153 return IPR_RC_JOB_RETURN;
9157 * ipr_reset_shutdown_ioa - Shutdown the adapter
9158 * @ipr_cmd: ipr command struct
9160 * Description: This function issues an adapter shutdown of the
9161 * specified type to the specified adapter as part of the
9162 * adapter reset job.
9165 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9167 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
9169 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9170 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
9171 unsigned long timeout;
9172 int rc = IPR_RC_JOB_CONTINUE;
9175 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
9176 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9177 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
9178 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
9179 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9180 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9181 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9182 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
9184 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
9185 timeout = IPR_SHUTDOWN_TIMEOUT;
9186 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
9187 timeout = IPR_INTERNAL_TIMEOUT;
9188 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
9189 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
9191 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
9193 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
9195 rc = IPR_RC_JOB_RETURN;
9196 ipr_cmd->job_step = ipr_reset_ucode_download;
9198 ipr_cmd->job_step = ipr_reset_alert;
9205 * ipr_reset_ioa_job - Adapter reset job
9206 * @ipr_cmd: ipr command struct
9208 * Description: This function is the job router for the adapter reset job.
9213 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
9216 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9219 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
9221 if (ioa_cfg->reset_cmd != ipr_cmd) {
9223 * We are doing nested adapter resets and this is
9224 * not the current reset job.
9226 list_add_tail(&ipr_cmd->queue,
9227 &ipr_cmd->hrrq->hrrq_free_q);
9231 if (IPR_IOASC_SENSE_KEY(ioasc)) {
9232 rc = ipr_cmd->job_step_failed(ipr_cmd);
9233 if (rc == IPR_RC_JOB_RETURN)
9237 ipr_reinit_ipr_cmnd(ipr_cmd);
9238 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
9239 rc = ipr_cmd->job_step(ipr_cmd);
9240 } while (rc == IPR_RC_JOB_CONTINUE);
9244 * _ipr_initiate_ioa_reset - Initiate an adapter reset
9245 * @ioa_cfg: ioa config struct
9246 * @job_step: first job step of reset job
9247 * @shutdown_type: shutdown type
9249 * Description: This function will initiate the reset of the given adapter
9250 * starting at the selected job step.
9251 * If the caller needs to wait on the completion of the reset,
9252 * the caller must sleep on the reset_wait_q.
9257 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9258 int (*job_step) (struct ipr_cmnd *),
9259 enum ipr_shutdown_type shutdown_type)
9261 struct ipr_cmnd *ipr_cmd;
9264 ioa_cfg->in_reset_reload = 1;
9265 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9266 spin_lock(&ioa_cfg->hrrq[i]._lock);
9267 ioa_cfg->hrrq[i].allow_cmds = 0;
9268 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9271 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9272 ioa_cfg->scsi_unblock = 0;
9273 ioa_cfg->scsi_blocked = 1;
9274 scsi_block_requests(ioa_cfg->host);
9277 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9278 ioa_cfg->reset_cmd = ipr_cmd;
9279 ipr_cmd->job_step = job_step;
9280 ipr_cmd->u.shutdown_type = shutdown_type;
9282 ipr_reset_ioa_job(ipr_cmd);
9286 * ipr_initiate_ioa_reset - Initiate an adapter reset
9287 * @ioa_cfg: ioa config struct
9288 * @shutdown_type: shutdown type
9290 * Description: This function will initiate the reset of the given adapter.
9291 * If the caller needs to wait on the completion of the reset,
9292 * the caller must sleep on the reset_wait_q.
9297 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9298 enum ipr_shutdown_type shutdown_type)
9302 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9305 if (ioa_cfg->in_reset_reload) {
9306 if (ioa_cfg->sdt_state == GET_DUMP)
9307 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9308 else if (ioa_cfg->sdt_state == READ_DUMP)
9309 ioa_cfg->sdt_state = ABORT_DUMP;
9312 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9313 dev_err(&ioa_cfg->pdev->dev,
9314 "IOA taken offline - error recovery failed\n");
9316 ioa_cfg->reset_retries = 0;
9317 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9318 spin_lock(&ioa_cfg->hrrq[i]._lock);
9319 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9320 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9324 if (ioa_cfg->in_ioa_bringdown) {
9325 ioa_cfg->reset_cmd = NULL;
9326 ioa_cfg->in_reset_reload = 0;
9327 ipr_fail_all_ops(ioa_cfg);
9328 wake_up_all(&ioa_cfg->reset_wait_q);
9330 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9331 ioa_cfg->scsi_unblock = 1;
9332 schedule_work(&ioa_cfg->work_q);
9336 ioa_cfg->in_ioa_bringdown = 1;
9337 shutdown_type = IPR_SHUTDOWN_NONE;
9341 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9346 * ipr_reset_freeze - Hold off all I/O activity
9347 * @ipr_cmd: ipr command struct
9349 * Description: If the PCI slot is frozen, hold off all I/O
9350 * activity; then, as soon as the slot is available again,
9351 * initiate an adapter reset.
9353 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9358 /* Disallow new interrupts, avoid loop */
9359 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9360 spin_lock(&ioa_cfg->hrrq[i]._lock);
9361 ioa_cfg->hrrq[i].allow_interrupts = 0;
9362 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9365 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9366 ipr_cmd->done = ipr_reset_ioa_job;
9367 return IPR_RC_JOB_RETURN;
9371 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9372 * @pdev: PCI device struct
9374 * Description: This routine is called to tell us that the MMIO
9375 * access to the IOA has been restored
9377 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9379 unsigned long flags = 0;
9380 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9382 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9383 if (!ioa_cfg->probe_done)
9384 pci_save_state(pdev);
9385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9386 return PCI_ERS_RESULT_NEED_RESET;
9390 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9391 * @pdev: PCI device struct
9393 * Description: This routine is called to tell us that the PCI bus
9394 * is down. Can't do anything here, except put the device driver
9395 * into a holding pattern, waiting for the PCI bus to come back.
9397 static void ipr_pci_frozen(struct pci_dev *pdev)
9399 unsigned long flags = 0;
9400 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9402 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9403 if (ioa_cfg->probe_done)
9404 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9409 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9410 * @pdev: PCI device struct
9412 * Description: This routine is called by the pci error recovery
9413 * code after the PCI slot has been reset, just before we
9414 * should resume normal operations.
9416 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9418 unsigned long flags = 0;
9419 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9421 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9422 if (ioa_cfg->probe_done) {
9423 if (ioa_cfg->needs_warm_reset)
9424 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9426 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9429 wake_up_all(&ioa_cfg->eeh_wait_q);
9430 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9431 return PCI_ERS_RESULT_RECOVERED;
9435 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9436 * @pdev: PCI device struct
9438 * Description: This routine is called when the PCI bus has
9439 * permanently failed.
9441 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9443 unsigned long flags = 0;
9444 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9447 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9448 if (ioa_cfg->probe_done) {
9449 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9450 ioa_cfg->sdt_state = ABORT_DUMP;
9451 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9452 ioa_cfg->in_ioa_bringdown = 1;
9453 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9454 spin_lock(&ioa_cfg->hrrq[i]._lock);
9455 ioa_cfg->hrrq[i].allow_cmds = 0;
9456 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9459 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9461 wake_up_all(&ioa_cfg->eeh_wait_q);
9462 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9466 * ipr_pci_error_detected - Called when a PCI error is detected.
9467 * @pdev: PCI device struct
9468 * @state: PCI channel state
9470 * Description: Called when a PCI error is detected.
9473 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9475 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9476 pci_channel_state_t state)
9479 case pci_channel_io_frozen:
9480 ipr_pci_frozen(pdev);
9481 return PCI_ERS_RESULT_CAN_RECOVER;
9482 case pci_channel_io_perm_failure:
9483 ipr_pci_perm_failure(pdev);
9484 return PCI_ERS_RESULT_DISCONNECT;
9489 return PCI_ERS_RESULT_NEED_RESET;
9493 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9494 * @ioa_cfg: ioa cfg struct
9496 * Description: This is the second phase of adapter initialization
9497 * This function takes care of initilizing the adapter to the point
9498 * where it can accept new commands.
9501 * 0 on success / -EIO on failure
9503 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9506 unsigned long host_lock_flags = 0;
9509 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9510 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9511 ioa_cfg->probe_done = 1;
9512 if (ioa_cfg->needs_hard_reset) {
9513 ioa_cfg->needs_hard_reset = 0;
9514 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9516 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9518 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9525 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9526 * @ioa_cfg: ioa config struct
9531 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9535 if (ioa_cfg->ipr_cmnd_list) {
9536 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9537 if (ioa_cfg->ipr_cmnd_list[i])
9538 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9539 ioa_cfg->ipr_cmnd_list[i],
9540 ioa_cfg->ipr_cmnd_list_dma[i]);
9542 ioa_cfg->ipr_cmnd_list[i] = NULL;
9546 if (ioa_cfg->ipr_cmd_pool)
9547 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9549 kfree(ioa_cfg->ipr_cmnd_list);
9550 kfree(ioa_cfg->ipr_cmnd_list_dma);
9551 ioa_cfg->ipr_cmnd_list = NULL;
9552 ioa_cfg->ipr_cmnd_list_dma = NULL;
9553 ioa_cfg->ipr_cmd_pool = NULL;
9557 * ipr_free_mem - Frees memory allocated for an adapter
9558 * @ioa_cfg: ioa cfg struct
9563 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9567 kfree(ioa_cfg->res_entries);
9568 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9569 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9570 ipr_free_cmd_blks(ioa_cfg);
9572 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9573 dma_free_coherent(&ioa_cfg->pdev->dev,
9574 sizeof(u32) * ioa_cfg->hrrq[i].size,
9575 ioa_cfg->hrrq[i].host_rrq,
9576 ioa_cfg->hrrq[i].host_rrq_dma);
9578 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9579 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9581 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9582 dma_free_coherent(&ioa_cfg->pdev->dev,
9583 sizeof(struct ipr_hostrcb),
9584 ioa_cfg->hostrcb[i],
9585 ioa_cfg->hostrcb_dma[i]);
9588 ipr_free_dump(ioa_cfg);
9589 kfree(ioa_cfg->trace);
9593 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9594 * @ioa_cfg: ipr cfg struct
9596 * This function frees all allocated IRQs for the
9597 * specified adapter.
9602 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9604 struct pci_dev *pdev = ioa_cfg->pdev;
9607 for (i = 0; i < ioa_cfg->nvectors; i++)
9608 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]);
9609 pci_free_irq_vectors(pdev);
9613 * ipr_free_all_resources - Free all allocated resources for an adapter.
9614 * @ipr_cmd: ipr command struct
9616 * This function frees all allocated resources for the
9617 * specified adapter.
9622 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9624 struct pci_dev *pdev = ioa_cfg->pdev;
9627 ipr_free_irqs(ioa_cfg);
9628 if (ioa_cfg->reset_work_q)
9629 destroy_workqueue(ioa_cfg->reset_work_q);
9630 iounmap(ioa_cfg->hdw_dma_regs);
9631 pci_release_regions(pdev);
9632 ipr_free_mem(ioa_cfg);
9633 scsi_host_put(ioa_cfg->host);
9634 pci_disable_device(pdev);
9639 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9640 * @ioa_cfg: ioa config struct
9643 * 0 on success / -ENOMEM on allocation failure
9645 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9647 struct ipr_cmnd *ipr_cmd;
9648 struct ipr_ioarcb *ioarcb;
9649 dma_addr_t dma_addr;
9650 int i, entries_each_hrrq, hrrq_id = 0;
9652 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9653 sizeof(struct ipr_cmnd), 512, 0);
9655 if (!ioa_cfg->ipr_cmd_pool)
9658 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9659 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9661 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9662 ipr_free_cmd_blks(ioa_cfg);
9666 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9667 if (ioa_cfg->hrrq_num > 1) {
9669 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9670 ioa_cfg->hrrq[i].min_cmd_id = 0;
9671 ioa_cfg->hrrq[i].max_cmd_id =
9672 (entries_each_hrrq - 1);
9675 IPR_NUM_BASE_CMD_BLKS/
9676 (ioa_cfg->hrrq_num - 1);
9677 ioa_cfg->hrrq[i].min_cmd_id =
9678 IPR_NUM_INTERNAL_CMD_BLKS +
9679 (i - 1) * entries_each_hrrq;
9680 ioa_cfg->hrrq[i].max_cmd_id =
9681 (IPR_NUM_INTERNAL_CMD_BLKS +
9682 i * entries_each_hrrq - 1);
9685 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9686 ioa_cfg->hrrq[i].min_cmd_id = 0;
9687 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9689 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9692 BUG_ON(ioa_cfg->hrrq_num == 0);
9694 i = IPR_NUM_CMD_BLKS -
9695 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9697 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9698 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9701 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9702 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9705 ipr_free_cmd_blks(ioa_cfg);
9709 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9710 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9711 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9713 ioarcb = &ipr_cmd->ioarcb;
9714 ipr_cmd->dma_addr = dma_addr;
9716 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9718 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9720 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9721 if (ioa_cfg->sis64) {
9722 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9723 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9724 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9725 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9727 ioarcb->write_ioadl_addr =
9728 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9729 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9730 ioarcb->ioasa_host_pci_addr =
9731 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9733 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9734 ipr_cmd->cmd_index = i;
9735 ipr_cmd->ioa_cfg = ioa_cfg;
9736 ipr_cmd->sense_buffer_dma = dma_addr +
9737 offsetof(struct ipr_cmnd, sense_buffer);
9739 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9740 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9741 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9742 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9750 * ipr_alloc_mem - Allocate memory for an adapter
9751 * @ioa_cfg: ioa config struct
9754 * 0 on success / non-zero for error
9756 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9758 struct pci_dev *pdev = ioa_cfg->pdev;
9759 int i, rc = -ENOMEM;
9762 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9763 ioa_cfg->max_devs_supported, GFP_KERNEL);
9765 if (!ioa_cfg->res_entries)
9768 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9769 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9770 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9773 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9774 sizeof(struct ipr_misc_cbs),
9775 &ioa_cfg->vpd_cbs_dma,
9778 if (!ioa_cfg->vpd_cbs)
9779 goto out_free_res_entries;
9781 if (ipr_alloc_cmd_blks(ioa_cfg))
9782 goto out_free_vpd_cbs;
9784 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9785 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9786 sizeof(u32) * ioa_cfg->hrrq[i].size,
9787 &ioa_cfg->hrrq[i].host_rrq_dma,
9790 if (!ioa_cfg->hrrq[i].host_rrq) {
9792 dma_free_coherent(&pdev->dev,
9793 sizeof(u32) * ioa_cfg->hrrq[i].size,
9794 ioa_cfg->hrrq[i].host_rrq,
9795 ioa_cfg->hrrq[i].host_rrq_dma);
9796 goto out_ipr_free_cmd_blocks;
9798 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9801 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9802 ioa_cfg->cfg_table_size,
9803 &ioa_cfg->cfg_table_dma,
9806 if (!ioa_cfg->u.cfg_table)
9807 goto out_free_host_rrq;
9809 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9810 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9811 sizeof(struct ipr_hostrcb),
9812 &ioa_cfg->hostrcb_dma[i],
9815 if (!ioa_cfg->hostrcb[i])
9816 goto out_free_hostrcb_dma;
9818 ioa_cfg->hostrcb[i]->hostrcb_dma =
9819 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9820 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9821 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9824 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9825 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9827 if (!ioa_cfg->trace)
9828 goto out_free_hostrcb_dma;
9835 out_free_hostrcb_dma:
9837 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9838 ioa_cfg->hostrcb[i],
9839 ioa_cfg->hostrcb_dma[i]);
9841 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9842 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9844 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9845 dma_free_coherent(&pdev->dev,
9846 sizeof(u32) * ioa_cfg->hrrq[i].size,
9847 ioa_cfg->hrrq[i].host_rrq,
9848 ioa_cfg->hrrq[i].host_rrq_dma);
9850 out_ipr_free_cmd_blocks:
9851 ipr_free_cmd_blks(ioa_cfg);
9853 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9854 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9855 out_free_res_entries:
9856 kfree(ioa_cfg->res_entries);
9861 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9862 * @ioa_cfg: ioa config struct
9867 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9871 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9872 ioa_cfg->bus_attr[i].bus = i;
9873 ioa_cfg->bus_attr[i].qas_enabled = 0;
9874 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9875 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9876 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9878 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9883 * ipr_init_regs - Initialize IOA registers
9884 * @ioa_cfg: ioa config struct
9889 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9891 const struct ipr_interrupt_offsets *p;
9892 struct ipr_interrupts *t;
9895 p = &ioa_cfg->chip_cfg->regs;
9897 base = ioa_cfg->hdw_dma_regs;
9899 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9900 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9901 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9902 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9903 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9904 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9905 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9906 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9907 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9908 t->ioarrin_reg = base + p->ioarrin_reg;
9909 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9910 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9911 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9912 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9913 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9914 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9916 if (ioa_cfg->sis64) {
9917 t->init_feedback_reg = base + p->init_feedback_reg;
9918 t->dump_addr_reg = base + p->dump_addr_reg;
9919 t->dump_data_reg = base + p->dump_data_reg;
9920 t->endian_swap_reg = base + p->endian_swap_reg;
9925 * ipr_init_ioa_cfg - Initialize IOA config struct
9926 * @ioa_cfg: ioa config struct
9927 * @host: scsi host struct
9928 * @pdev: PCI dev struct
9933 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9934 struct Scsi_Host *host, struct pci_dev *pdev)
9938 ioa_cfg->host = host;
9939 ioa_cfg->pdev = pdev;
9940 ioa_cfg->log_level = ipr_log_level;
9941 ioa_cfg->doorbell = IPR_DOORBELL;
9942 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9943 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9944 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9945 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9946 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9947 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9949 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9950 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9951 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
9952 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9953 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9954 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9955 INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread);
9956 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9957 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9958 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9959 ioa_cfg->sdt_state = INACTIVE;
9961 ipr_initialize_bus_attr(ioa_cfg);
9962 ioa_cfg->max_devs_supported = ipr_max_devs;
9964 if (ioa_cfg->sis64) {
9965 host->max_channel = IPR_MAX_SIS64_BUSES;
9966 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9967 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9968 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9969 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9970 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9971 + ((sizeof(struct ipr_config_table_entry64)
9972 * ioa_cfg->max_devs_supported)));
9974 host->max_channel = IPR_VSET_BUS;
9975 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9976 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9977 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9978 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9979 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9980 + ((sizeof(struct ipr_config_table_entry)
9981 * ioa_cfg->max_devs_supported)));
9984 host->unique_id = host->host_no;
9985 host->max_cmd_len = IPR_MAX_CDB_LEN;
9986 host->can_queue = ioa_cfg->max_cmds;
9987 pci_set_drvdata(pdev, ioa_cfg);
9989 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9990 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9991 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9992 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9994 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9996 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
10001 * ipr_get_chip_info - Find adapter chip information
10002 * @dev_id: PCI device id struct
10005 * ptr to chip information on success / NULL on failure
10007 static const struct ipr_chip_t *
10008 ipr_get_chip_info(const struct pci_device_id *dev_id)
10012 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
10013 if (ipr_chip[i].vendor == dev_id->vendor &&
10014 ipr_chip[i].device == dev_id->device)
10015 return &ipr_chip[i];
10020 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
10021 * during probe time
10022 * @ioa_cfg: ioa config struct
10027 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
10029 struct pci_dev *pdev = ioa_cfg->pdev;
10031 if (pci_channel_offline(pdev)) {
10032 wait_event_timeout(ioa_cfg->eeh_wait_q,
10033 !pci_channel_offline(pdev),
10034 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
10035 pci_restore_state(pdev);
10039 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
10041 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
10043 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
10044 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
10045 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
10046 ioa_cfg->vectors_info[vec_idx].
10047 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
10051 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
10052 struct pci_dev *pdev)
10056 for (i = 1; i < ioa_cfg->nvectors; i++) {
10057 rc = request_irq(pci_irq_vector(pdev, i),
10060 ioa_cfg->vectors_info[i].desc,
10061 &ioa_cfg->hrrq[i]);
10064 free_irq(pci_irq_vector(pdev, i),
10065 &ioa_cfg->hrrq[i]);
10073 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
10074 * @pdev: PCI device struct
10076 * Description: Simply set the msi_received flag to 1 indicating that
10077 * Message Signaled Interrupts are supported.
10080 * 0 on success / non-zero on failure
10082 static irqreturn_t ipr_test_intr(int irq, void *devp)
10084 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
10085 unsigned long lock_flags = 0;
10086 irqreturn_t rc = IRQ_HANDLED;
10088 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
10089 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10091 ioa_cfg->msi_received = 1;
10092 wake_up(&ioa_cfg->msi_wait_q);
10094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10099 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
10100 * @pdev: PCI device struct
10102 * Description: This routine sets up and initiates a test interrupt to determine
10103 * if the interrupt is received via the ipr_test_intr() service routine.
10104 * If the tests fails, the driver will fall back to LSI.
10107 * 0 on success / non-zero on failure
10109 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
10112 volatile u32 int_reg;
10113 unsigned long lock_flags = 0;
10114 int irq = pci_irq_vector(pdev, 0);
10118 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10119 init_waitqueue_head(&ioa_cfg->msi_wait_q);
10120 ioa_cfg->msi_received = 0;
10121 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10122 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
10123 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
10124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10126 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
10128 dev_err(&pdev->dev, "Can not assign irq %d\n", irq);
10130 } else if (ipr_debug)
10131 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
10133 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
10134 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
10135 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
10136 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10137 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10139 if (!ioa_cfg->msi_received) {
10140 /* MSI test failed */
10141 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
10143 } else if (ipr_debug)
10144 dev_info(&pdev->dev, "MSI test succeeded.\n");
10146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10148 free_irq(irq, ioa_cfg);
10155 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
10156 * @pdev: PCI device struct
10157 * @dev_id: PCI device id struct
10160 * 0 on success / non-zero on failure
10162 static int ipr_probe_ioa(struct pci_dev *pdev,
10163 const struct pci_device_id *dev_id)
10165 struct ipr_ioa_cfg *ioa_cfg;
10166 struct Scsi_Host *host;
10167 unsigned long ipr_regs_pci;
10168 void __iomem *ipr_regs;
10169 int rc = PCIBIOS_SUCCESSFUL;
10170 volatile u32 mask, uproc, interrupts;
10171 unsigned long lock_flags, driver_lock_flags;
10172 unsigned int irq_flag;
10176 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
10177 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
10180 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
10185 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
10186 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
10187 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
10189 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
10191 if (!ioa_cfg->ipr_chip) {
10192 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
10193 dev_id->vendor, dev_id->device);
10194 goto out_scsi_host_put;
10197 /* set SIS 32 or SIS 64 */
10198 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
10199 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
10200 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
10201 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10203 if (ipr_transop_timeout)
10204 ioa_cfg->transop_timeout = ipr_transop_timeout;
10205 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10206 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10208 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10210 ioa_cfg->revid = pdev->revision;
10212 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10214 ipr_regs_pci = pci_resource_start(pdev, 0);
10216 rc = pci_request_regions(pdev, IPR_NAME);
10218 dev_err(&pdev->dev,
10219 "Couldn't register memory range of registers\n");
10220 goto out_scsi_host_put;
10223 rc = pci_enable_device(pdev);
10225 if (rc || pci_channel_offline(pdev)) {
10226 if (pci_channel_offline(pdev)) {
10227 ipr_wait_for_pci_err_recovery(ioa_cfg);
10228 rc = pci_enable_device(pdev);
10232 dev_err(&pdev->dev, "Cannot enable adapter\n");
10233 ipr_wait_for_pci_err_recovery(ioa_cfg);
10234 goto out_release_regions;
10238 ipr_regs = pci_ioremap_bar(pdev, 0);
10241 dev_err(&pdev->dev,
10242 "Couldn't map memory range of registers\n");
10247 ioa_cfg->hdw_dma_regs = ipr_regs;
10248 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10249 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10251 ipr_init_regs(ioa_cfg);
10253 if (ioa_cfg->sis64) {
10254 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10256 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10257 rc = dma_set_mask_and_coherent(&pdev->dev,
10261 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10264 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10265 goto cleanup_nomem;
10268 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10269 ioa_cfg->chip_cfg->cache_line_size);
10271 if (rc != PCIBIOS_SUCCESSFUL) {
10272 dev_err(&pdev->dev, "Write of cache line size failed\n");
10273 ipr_wait_for_pci_err_recovery(ioa_cfg);
10275 goto cleanup_nomem;
10278 /* Issue MMIO read to ensure card is not in EEH */
10279 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10280 ipr_wait_for_pci_err_recovery(ioa_cfg);
10282 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10283 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10284 IPR_MAX_MSIX_VECTORS);
10285 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10288 irq_flag = PCI_IRQ_LEGACY;
10289 if (ioa_cfg->ipr_chip->has_msi)
10290 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
10291 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
10293 ipr_wait_for_pci_err_recovery(ioa_cfg);
10294 goto cleanup_nomem;
10296 ioa_cfg->nvectors = rc;
10298 if (!pdev->msi_enabled && !pdev->msix_enabled)
10299 ioa_cfg->clear_isr = 1;
10301 pci_set_master(pdev);
10303 if (pci_channel_offline(pdev)) {
10304 ipr_wait_for_pci_err_recovery(ioa_cfg);
10305 pci_set_master(pdev);
10306 if (pci_channel_offline(pdev)) {
10308 goto out_msi_disable;
10312 if (pdev->msi_enabled || pdev->msix_enabled) {
10313 rc = ipr_test_msi(ioa_cfg, pdev);
10316 dev_info(&pdev->dev,
10317 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors,
10318 pdev->msix_enabled ? "-X" : "");
10321 ipr_wait_for_pci_err_recovery(ioa_cfg);
10322 pci_free_irq_vectors(pdev);
10324 ioa_cfg->nvectors = 1;
10325 ioa_cfg->clear_isr = 1;
10328 goto out_msi_disable;
10332 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10333 (unsigned int)num_online_cpus(),
10334 (unsigned int)IPR_MAX_HRRQ_NUM);
10336 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10337 goto out_msi_disable;
10339 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10340 goto out_msi_disable;
10342 rc = ipr_alloc_mem(ioa_cfg);
10344 dev_err(&pdev->dev,
10345 "Couldn't allocate enough memory for device driver!\n");
10346 goto out_msi_disable;
10349 /* Save away PCI config space for use following IOA reset */
10350 rc = pci_save_state(pdev);
10352 if (rc != PCIBIOS_SUCCESSFUL) {
10353 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10355 goto cleanup_nolog;
10359 * If HRRQ updated interrupt is not masked, or reset alert is set,
10360 * the card is in an unknown state and needs a hard reset
10362 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10363 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10364 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10365 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10366 ioa_cfg->needs_hard_reset = 1;
10367 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10368 ioa_cfg->needs_hard_reset = 1;
10369 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10370 ioa_cfg->ioa_unit_checked = 1;
10372 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10373 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10376 if (pdev->msi_enabled || pdev->msix_enabled) {
10377 name_msi_vectors(ioa_cfg);
10378 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0,
10379 ioa_cfg->vectors_info[0].desc,
10380 &ioa_cfg->hrrq[0]);
10382 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev);
10384 rc = request_irq(pdev->irq, ipr_isr,
10386 IPR_NAME, &ioa_cfg->hrrq[0]);
10389 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10391 goto cleanup_nolog;
10394 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10395 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10396 ioa_cfg->needs_warm_reset = 1;
10397 ioa_cfg->reset = ipr_reset_slot_reset;
10399 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10400 WQ_MEM_RECLAIM, host->host_no);
10402 if (!ioa_cfg->reset_work_q) {
10403 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10408 ioa_cfg->reset = ipr_reset_start_bist;
10410 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10411 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10412 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10419 ipr_free_irqs(ioa_cfg);
10421 ipr_free_mem(ioa_cfg);
10423 ipr_wait_for_pci_err_recovery(ioa_cfg);
10424 pci_free_irq_vectors(pdev);
10428 pci_disable_device(pdev);
10429 out_release_regions:
10430 pci_release_regions(pdev);
10432 scsi_host_put(host);
10437 * ipr_initiate_ioa_bringdown - Bring down an adapter
10438 * @ioa_cfg: ioa config struct
10439 * @shutdown_type: shutdown type
10441 * Description: This function will initiate bringing down the adapter.
10442 * This consists of issuing an IOA shutdown to the adapter
10443 * to flush the cache, and running BIST.
10444 * If the caller needs to wait on the completion of the reset,
10445 * the caller must sleep on the reset_wait_q.
10450 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10451 enum ipr_shutdown_type shutdown_type)
10454 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10455 ioa_cfg->sdt_state = ABORT_DUMP;
10456 ioa_cfg->reset_retries = 0;
10457 ioa_cfg->in_ioa_bringdown = 1;
10458 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10463 * __ipr_remove - Remove a single adapter
10464 * @pdev: pci device struct
10466 * Adapter hot plug remove entry point.
10471 static void __ipr_remove(struct pci_dev *pdev)
10473 unsigned long host_lock_flags = 0;
10474 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10476 unsigned long driver_lock_flags;
10479 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10480 while (ioa_cfg->in_reset_reload) {
10481 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10482 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10483 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10486 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10487 spin_lock(&ioa_cfg->hrrq[i]._lock);
10488 ioa_cfg->hrrq[i].removing_ioa = 1;
10489 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10492 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10494 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10495 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10496 flush_work(&ioa_cfg->work_q);
10497 if (ioa_cfg->reset_work_q)
10498 flush_workqueue(ioa_cfg->reset_work_q);
10499 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10500 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10502 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10503 list_del(&ioa_cfg->queue);
10504 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10506 if (ioa_cfg->sdt_state == ABORT_DUMP)
10507 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10508 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10510 ipr_free_all_resources(ioa_cfg);
10516 * ipr_remove - IOA hot plug remove entry point
10517 * @pdev: pci device struct
10519 * Adapter hot plug remove entry point.
10524 static void ipr_remove(struct pci_dev *pdev)
10526 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10530 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10532 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10534 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10535 &ipr_ioa_async_err_log);
10536 scsi_remove_host(ioa_cfg->host);
10538 __ipr_remove(pdev);
10544 * ipr_probe - Adapter hot plug add entry point
10547 * 0 on success / non-zero on failure
10549 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10551 struct ipr_ioa_cfg *ioa_cfg;
10552 unsigned long flags;
10555 rc = ipr_probe_ioa(pdev, dev_id);
10560 ioa_cfg = pci_get_drvdata(pdev);
10561 rc = ipr_probe_ioa_part2(ioa_cfg);
10564 __ipr_remove(pdev);
10568 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10571 __ipr_remove(pdev);
10575 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10579 scsi_remove_host(ioa_cfg->host);
10580 __ipr_remove(pdev);
10584 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
10585 &ipr_ioa_async_err_log);
10588 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10590 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10592 scsi_remove_host(ioa_cfg->host);
10593 __ipr_remove(pdev);
10597 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10601 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10602 &ipr_ioa_async_err_log);
10603 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10605 scsi_remove_host(ioa_cfg->host);
10606 __ipr_remove(pdev);
10609 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10610 ioa_cfg->scan_enabled = 1;
10611 schedule_work(&ioa_cfg->work_q);
10612 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10614 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10616 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10617 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10618 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
10619 ioa_cfg->iopoll_weight, ipr_iopoll);
10623 scsi_scan_host(ioa_cfg->host);
10629 * ipr_shutdown - Shutdown handler.
10630 * @pdev: pci device struct
10632 * This function is invoked upon system shutdown/reboot. It will issue
10633 * an adapter shutdown to the adapter to flush the write cache.
10638 static void ipr_shutdown(struct pci_dev *pdev)
10640 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10641 unsigned long lock_flags = 0;
10642 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10645 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10646 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10647 ioa_cfg->iopoll_weight = 0;
10648 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10649 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
10652 while (ioa_cfg->in_reset_reload) {
10653 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10654 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10658 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10659 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10661 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10663 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10664 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10665 ipr_free_irqs(ioa_cfg);
10666 pci_disable_device(ioa_cfg->pdev);
10670 static struct pci_device_id ipr_pci_table[] = {
10671 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10672 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10673 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10674 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10675 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10676 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10677 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10678 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10679 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10680 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10681 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10682 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10683 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10684 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10685 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10686 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10687 IPR_USE_LONG_TRANSOP_TIMEOUT },
10688 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10689 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10690 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10691 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10692 IPR_USE_LONG_TRANSOP_TIMEOUT },
10693 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10694 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10695 IPR_USE_LONG_TRANSOP_TIMEOUT },
10696 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10697 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10698 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10699 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10700 IPR_USE_LONG_TRANSOP_TIMEOUT},
10701 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10702 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10703 IPR_USE_LONG_TRANSOP_TIMEOUT },
10704 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10705 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10706 IPR_USE_LONG_TRANSOP_TIMEOUT },
10707 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10708 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10709 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10710 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10711 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10712 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10713 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10714 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10715 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10716 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10717 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10718 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10719 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10720 IPR_USE_LONG_TRANSOP_TIMEOUT },
10721 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10722 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10723 IPR_USE_LONG_TRANSOP_TIMEOUT },
10724 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10725 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10726 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10727 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10728 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10729 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10730 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10731 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10732 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10733 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10734 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10735 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10736 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10737 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10738 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10739 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10740 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10741 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10742 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10743 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10744 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10745 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10746 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10747 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10748 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10749 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10750 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10751 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10752 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10753 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10754 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10755 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10756 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10757 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10758 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10759 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10760 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10761 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10762 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10763 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10764 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10765 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10766 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10767 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10768 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10769 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10770 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10771 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10772 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10773 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10774 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10775 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10776 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10777 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 },
10778 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10779 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 },
10782 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10784 static const struct pci_error_handlers ipr_err_handler = {
10785 .error_detected = ipr_pci_error_detected,
10786 .mmio_enabled = ipr_pci_mmio_enabled,
10787 .slot_reset = ipr_pci_slot_reset,
10790 static struct pci_driver ipr_driver = {
10792 .id_table = ipr_pci_table,
10793 .probe = ipr_probe,
10794 .remove = ipr_remove,
10795 .shutdown = ipr_shutdown,
10796 .err_handler = &ipr_err_handler,
10800 * ipr_halt_done - Shutdown prepare completion
10805 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10807 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10811 * ipr_halt - Issue shutdown prepare to all adapters
10814 * NOTIFY_OK on success / NOTIFY_DONE on failure
10816 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10818 struct ipr_cmnd *ipr_cmd;
10819 struct ipr_ioa_cfg *ioa_cfg;
10820 unsigned long flags = 0, driver_lock_flags;
10822 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10823 return NOTIFY_DONE;
10825 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10827 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10828 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10829 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10830 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10831 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10835 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10836 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10837 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10838 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10839 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10841 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10842 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10844 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10849 static struct notifier_block ipr_notifier = {
10854 * ipr_init - Module entry point
10857 * 0 on success / negative value on failure
10859 static int __init ipr_init(void)
10861 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10862 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10864 register_reboot_notifier(&ipr_notifier);
10865 return pci_register_driver(&ipr_driver);
10869 * ipr_exit - Module unload
10871 * Module unload entry point.
10876 static void __exit ipr_exit(void)
10878 unregister_reboot_notifier(&ipr_notifier);
10879 pci_unregister_driver(&ipr_driver);
10882 module_init(ipr_init);
10883 module_exit(ipr_exit);