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 {0x060B8100, 0, IPR_DEFAULT_LOG_LEVEL,
439 "4086: SAS Adapter Hardware Configuration Error"},
440 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
441 "3140: Device bus not ready to ready transition"},
442 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
443 "FFFB: SCSI bus was reset"},
445 "FFFE: SCSI bus transition to single ended"},
447 "FFFE: SCSI bus transition to LVD"},
448 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
449 "FFFB: SCSI bus was reset by another initiator"},
450 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
451 "3029: A device replacement has occurred"},
452 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
453 "4102: Device bus fabric performance degradation"},
454 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
455 "9051: IOA cache data exists for a missing or failed device"},
456 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
457 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
458 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
459 "9025: Disk unit is not supported at its physical location"},
460 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
461 "3020: IOA detected a SCSI bus configuration error"},
462 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
463 "3150: SCSI bus configuration error"},
464 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
465 "9074: Asymmetric advanced function disk configuration"},
466 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
467 "4040: Incomplete multipath connection between IOA and enclosure"},
468 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
469 "4041: Incomplete multipath connection between enclosure and device"},
470 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
471 "9075: Incomplete multipath connection between IOA and remote IOA"},
472 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
473 "9076: Configuration error, missing remote IOA"},
474 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4050: Enclosure does not support a required multipath function"},
476 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4121: Configuration error, required cable is missing"},
478 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4122: Cable is not plugged into the correct location on remote IOA"},
480 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "4123: Configuration error, invalid cable vital product data"},
482 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
483 "4124: Configuration error, both cable ends are plugged into the same IOA"},
484 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
485 "4070: Logically bad block written on device"},
486 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
487 "9041: Array protection temporarily suspended"},
488 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
489 "9042: Corrupt array parity detected on specified device"},
490 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
491 "9030: Array no longer protected due to missing or failed disk unit"},
492 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
493 "9071: Link operational transition"},
494 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
495 "9072: Link not operational transition"},
496 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
497 "9032: Array exposed but still protected"},
498 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
499 "70DD: Device forced failed by disrupt device command"},
500 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
501 "4061: Multipath redundancy level got better"},
502 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
503 "4060: Multipath redundancy level got worse"},
504 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
505 "9083: Device raw mode enabled"},
506 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
507 "9084: Device raw mode disabled"},
509 "Failure due to other device"},
510 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
511 "9008: IOA does not support functions expected by devices"},
512 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
513 "9010: Cache data associated with attached devices cannot be found"},
514 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
515 "9011: Cache data belongs to devices other than those attached"},
516 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
517 "9020: Array missing 2 or more devices with only 1 device present"},
518 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
519 "9021: Array missing 2 or more devices with 2 or more devices present"},
520 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
521 "9022: Exposed array is missing a required device"},
522 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
523 "9023: Array member(s) not at required physical locations"},
524 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
525 "9024: Array not functional due to present hardware configuration"},
526 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
527 "9026: Array not functional due to present hardware configuration"},
528 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
529 "9027: Array is missing a device and parity is out of sync"},
530 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
531 "9028: Maximum number of arrays already exist"},
532 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
533 "9050: Required cache data cannot be located for a disk unit"},
534 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
535 "9052: Cache data exists for a device that has been modified"},
536 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
537 "9054: IOA resources not available due to previous problems"},
538 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
539 "9092: Disk unit requires initialization before use"},
540 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
541 "9029: Incorrect hardware configuration change has been detected"},
542 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
543 "9060: One or more disk pairs are missing from an array"},
544 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
545 "9061: One or more disks are missing from an array"},
546 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
547 "9062: One or more disks are missing from an array"},
548 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
549 "9063: Maximum number of functional arrays has been exceeded"},
551 "Data protect, other volume set problem"},
553 "Aborted command, invalid descriptor"},
555 "Target operating conditions have changed, dual adapter takeover"},
557 "Aborted command, medium removal prevented"},
559 "Command terminated by host"},
561 "Aborted command, command terminated by host"}
564 static const struct ipr_ses_table_entry ipr_ses_table[] = {
565 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
566 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
567 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
568 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
569 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
570 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
571 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
572 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
575 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
576 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
577 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
581 * Function Prototypes
583 static int ipr_reset_alert(struct ipr_cmnd *);
584 static void ipr_process_ccn(struct ipr_cmnd *);
585 static void ipr_process_error(struct ipr_cmnd *);
586 static void ipr_reset_ioa_job(struct ipr_cmnd *);
587 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
588 enum ipr_shutdown_type);
590 #ifdef CONFIG_SCSI_IPR_TRACE
592 * ipr_trc_hook - Add a trace entry to the driver trace
593 * @ipr_cmd: ipr command struct
595 * @add_data: additional data
600 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
601 u8 type, u32 add_data)
603 struct ipr_trace_entry *trace_entry;
604 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
605 unsigned int trace_index;
607 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
608 trace_entry = &ioa_cfg->trace[trace_index];
609 trace_entry->time = jiffies;
610 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
611 trace_entry->type = type;
612 if (ipr_cmd->ioa_cfg->sis64)
613 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
615 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
616 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
617 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
618 trace_entry->u.add_data = add_data;
622 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
626 * ipr_lock_and_done - Acquire lock and complete command
627 * @ipr_cmd: ipr command struct
632 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
634 unsigned long lock_flags;
635 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
637 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
638 ipr_cmd->done(ipr_cmd);
639 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
643 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
644 * @ipr_cmd: ipr command struct
649 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
651 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
652 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
653 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
654 dma_addr_t dma_addr = ipr_cmd->dma_addr;
657 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
658 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
659 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
660 ioarcb->data_transfer_length = 0;
661 ioarcb->read_data_transfer_length = 0;
662 ioarcb->ioadl_len = 0;
663 ioarcb->read_ioadl_len = 0;
665 if (ipr_cmd->ioa_cfg->sis64) {
666 ioarcb->u.sis64_addr_data.data_ioadl_addr =
667 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
668 ioasa64->u.gata.status = 0;
670 ioarcb->write_ioadl_addr =
671 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
672 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
673 ioasa->u.gata.status = 0;
676 ioasa->hdr.ioasc = 0;
677 ioasa->hdr.residual_data_len = 0;
678 ipr_cmd->scsi_cmd = NULL;
680 ipr_cmd->sense_buffer[0] = 0;
681 ipr_cmd->dma_use_sg = 0;
685 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
686 * @ipr_cmd: ipr command struct
691 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
692 void (*fast_done) (struct ipr_cmnd *))
694 ipr_reinit_ipr_cmnd(ipr_cmd);
695 ipr_cmd->u.scratch = 0;
696 ipr_cmd->sibling = NULL;
697 ipr_cmd->eh_comp = NULL;
698 ipr_cmd->fast_done = fast_done;
699 timer_setup(&ipr_cmd->timer, NULL, 0);
703 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
704 * @ioa_cfg: ioa config struct
707 * pointer to ipr command struct
710 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
712 struct ipr_cmnd *ipr_cmd = NULL;
714 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
715 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
716 struct ipr_cmnd, queue);
717 list_del(&ipr_cmd->queue);
725 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
726 * @ioa_cfg: ioa config struct
729 * pointer to ipr command struct
732 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
734 struct ipr_cmnd *ipr_cmd =
735 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
736 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
741 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
742 * @ioa_cfg: ioa config struct
743 * @clr_ints: interrupts to clear
745 * This function masks all interrupts on the adapter, then clears the
746 * interrupts specified in the mask
751 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
754 volatile u32 int_reg;
757 /* Stop new interrupts */
758 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
759 spin_lock(&ioa_cfg->hrrq[i]._lock);
760 ioa_cfg->hrrq[i].allow_interrupts = 0;
761 spin_unlock(&ioa_cfg->hrrq[i]._lock);
765 /* Set interrupt mask to stop all new interrupts */
767 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
769 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
771 /* Clear any pending interrupts */
773 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
774 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
775 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
779 * ipr_save_pcix_cmd_reg - Save PCI-X command register
780 * @ioa_cfg: ioa config struct
783 * 0 on success / -EIO on failure
785 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
787 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
789 if (pcix_cmd_reg == 0)
792 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
793 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
794 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
798 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
803 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
804 * @ioa_cfg: ioa config struct
807 * 0 on success / -EIO on failure
809 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
811 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
814 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
815 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
816 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
825 * __ipr_sata_eh_done - done function for aborted SATA commands
826 * @ipr_cmd: ipr command struct
828 * This function is invoked for ops generated to SATA
829 * devices which are being aborted.
834 static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
836 struct ata_queued_cmd *qc = ipr_cmd->qc;
837 struct ipr_sata_port *sata_port = qc->ap->private_data;
839 qc->err_mask |= AC_ERR_OTHER;
840 sata_port->ioasa.status |= ATA_BUSY;
842 if (ipr_cmd->eh_comp)
843 complete(ipr_cmd->eh_comp);
844 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
848 * ipr_sata_eh_done - done function for aborted SATA commands
849 * @ipr_cmd: ipr command struct
851 * This function is invoked for ops generated to SATA
852 * devices which are being aborted.
857 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
859 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
860 unsigned long hrrq_flags;
862 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
863 __ipr_sata_eh_done(ipr_cmd);
864 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
868 * __ipr_scsi_eh_done - mid-layer done function for aborted ops
869 * @ipr_cmd: ipr command struct
871 * This function is invoked by the interrupt handler for
872 * ops generated by the SCSI mid-layer which are being aborted.
877 static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
879 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
881 scsi_cmd->result |= (DID_ERROR << 16);
883 scsi_dma_unmap(ipr_cmd->scsi_cmd);
884 scsi_cmd->scsi_done(scsi_cmd);
885 if (ipr_cmd->eh_comp)
886 complete(ipr_cmd->eh_comp);
887 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
891 * ipr_scsi_eh_done - mid-layer done function for aborted ops
892 * @ipr_cmd: ipr command struct
894 * This function is invoked by the interrupt handler for
895 * ops generated by the SCSI mid-layer which are being aborted.
900 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
902 unsigned long hrrq_flags;
903 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
905 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
906 __ipr_scsi_eh_done(ipr_cmd);
907 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
911 * ipr_fail_all_ops - Fails all outstanding ops.
912 * @ioa_cfg: ioa config struct
914 * This function fails all outstanding ops.
919 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
921 struct ipr_cmnd *ipr_cmd, *temp;
922 struct ipr_hrr_queue *hrrq;
925 for_each_hrrq(hrrq, ioa_cfg) {
926 spin_lock(&hrrq->_lock);
927 list_for_each_entry_safe(ipr_cmd,
928 temp, &hrrq->hrrq_pending_q, queue) {
929 list_del(&ipr_cmd->queue);
931 ipr_cmd->s.ioasa.hdr.ioasc =
932 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
933 ipr_cmd->s.ioasa.hdr.ilid =
934 cpu_to_be32(IPR_DRIVER_ILID);
936 if (ipr_cmd->scsi_cmd)
937 ipr_cmd->done = __ipr_scsi_eh_done;
938 else if (ipr_cmd->qc)
939 ipr_cmd->done = __ipr_sata_eh_done;
941 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
942 IPR_IOASC_IOA_WAS_RESET);
943 del_timer(&ipr_cmd->timer);
944 ipr_cmd->done(ipr_cmd);
946 spin_unlock(&hrrq->_lock);
952 * ipr_send_command - Send driver initiated requests.
953 * @ipr_cmd: ipr command struct
955 * This function sends a command to the adapter using the correct write call.
956 * In the case of sis64, calculate the ioarcb size required. Then or in the
962 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
964 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
965 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
967 if (ioa_cfg->sis64) {
968 /* The default size is 256 bytes */
969 send_dma_addr |= 0x1;
971 /* If the number of ioadls * size of ioadl > 128 bytes,
972 then use a 512 byte ioarcb */
973 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
974 send_dma_addr |= 0x4;
975 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
977 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
981 * ipr_do_req - Send driver initiated requests.
982 * @ipr_cmd: ipr command struct
983 * @done: done function
984 * @timeout_func: timeout function
985 * @timeout: timeout value
987 * This function sends the specified command to the adapter with the
988 * timeout given. The done function is invoked on command completion.
993 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
994 void (*done) (struct ipr_cmnd *),
995 void (*timeout_func) (struct timer_list *), u32 timeout)
997 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
999 ipr_cmd->done = done;
1001 ipr_cmd->timer.expires = jiffies + timeout;
1002 ipr_cmd->timer.function = timeout_func;
1004 add_timer(&ipr_cmd->timer);
1006 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
1008 ipr_send_command(ipr_cmd);
1012 * ipr_internal_cmd_done - Op done function for an internally generated op.
1013 * @ipr_cmd: ipr command struct
1015 * This function is the op done function for an internally generated,
1016 * blocking op. It simply wakes the sleeping thread.
1021 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
1023 if (ipr_cmd->sibling)
1024 ipr_cmd->sibling = NULL;
1026 complete(&ipr_cmd->completion);
1030 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
1031 * @ipr_cmd: ipr command struct
1032 * @dma_addr: dma address
1033 * @len: transfer length
1034 * @flags: ioadl flag value
1036 * This function initializes an ioadl in the case where there is only a single
1042 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1045 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1046 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1048 ipr_cmd->dma_use_sg = 1;
1050 if (ipr_cmd->ioa_cfg->sis64) {
1051 ioadl64->flags = cpu_to_be32(flags);
1052 ioadl64->data_len = cpu_to_be32(len);
1053 ioadl64->address = cpu_to_be64(dma_addr);
1055 ipr_cmd->ioarcb.ioadl_len =
1056 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1057 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1059 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1060 ioadl->address = cpu_to_be32(dma_addr);
1062 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1063 ipr_cmd->ioarcb.read_ioadl_len =
1064 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1065 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1067 ipr_cmd->ioarcb.ioadl_len =
1068 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1069 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1075 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1076 * @ipr_cmd: ipr command struct
1077 * @timeout_func: function to invoke if command times out
1083 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1084 void (*timeout_func) (struct timer_list *),
1087 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1089 init_completion(&ipr_cmd->completion);
1090 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1092 spin_unlock_irq(ioa_cfg->host->host_lock);
1093 wait_for_completion(&ipr_cmd->completion);
1094 spin_lock_irq(ioa_cfg->host->host_lock);
1097 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1101 if (ioa_cfg->hrrq_num == 1)
1104 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1105 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1111 * ipr_send_hcam - Send an HCAM to the adapter.
1112 * @ioa_cfg: ioa config struct
1114 * @hostrcb: hostrcb struct
1116 * This function will send a Host Controlled Async command to the adapter.
1117 * If HCAMs are currently not allowed to be issued to the adapter, it will
1118 * place the hostrcb on the free queue.
1123 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1124 struct ipr_hostrcb *hostrcb)
1126 struct ipr_cmnd *ipr_cmd;
1127 struct ipr_ioarcb *ioarcb;
1129 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1130 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1131 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1132 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1134 ipr_cmd->u.hostrcb = hostrcb;
1135 ioarcb = &ipr_cmd->ioarcb;
1137 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1138 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1139 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1140 ioarcb->cmd_pkt.cdb[1] = type;
1141 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1142 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1144 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1145 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1147 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1148 ipr_cmd->done = ipr_process_ccn;
1150 ipr_cmd->done = ipr_process_error;
1152 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1154 ipr_send_command(ipr_cmd);
1156 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1161 * ipr_update_ata_class - Update the ata class in the resource entry
1162 * @res: resource entry struct
1163 * @proto: cfgte device bus protocol value
1168 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1171 case IPR_PROTO_SATA:
1172 case IPR_PROTO_SAS_STP:
1173 res->ata_class = ATA_DEV_ATA;
1175 case IPR_PROTO_SATA_ATAPI:
1176 case IPR_PROTO_SAS_STP_ATAPI:
1177 res->ata_class = ATA_DEV_ATAPI;
1180 res->ata_class = ATA_DEV_UNKNOWN;
1186 * ipr_init_res_entry - Initialize a resource entry struct.
1187 * @res: resource entry struct
1188 * @cfgtew: config table entry wrapper struct
1193 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1194 struct ipr_config_table_entry_wrapper *cfgtew)
1198 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1199 struct ipr_resource_entry *gscsi_res = NULL;
1201 res->needs_sync_complete = 0;
1204 res->del_from_ml = 0;
1205 res->resetting_device = 0;
1206 res->reset_occurred = 0;
1208 res->sata_port = NULL;
1210 if (ioa_cfg->sis64) {
1211 proto = cfgtew->u.cfgte64->proto;
1212 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1213 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1214 res->qmodel = IPR_QUEUEING_MODEL64(res);
1215 res->type = cfgtew->u.cfgte64->res_type;
1217 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1218 sizeof(res->res_path));
1221 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1222 sizeof(res->dev_lun.scsi_lun));
1223 res->lun = scsilun_to_int(&res->dev_lun);
1225 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1226 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1227 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1229 res->target = gscsi_res->target;
1234 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1235 ioa_cfg->max_devs_supported);
1236 set_bit(res->target, ioa_cfg->target_ids);
1238 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1239 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1241 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1242 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1243 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1244 ioa_cfg->max_devs_supported);
1245 set_bit(res->target, ioa_cfg->array_ids);
1246 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1247 res->bus = IPR_VSET_VIRTUAL_BUS;
1248 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1249 ioa_cfg->max_devs_supported);
1250 set_bit(res->target, ioa_cfg->vset_ids);
1252 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1253 ioa_cfg->max_devs_supported);
1254 set_bit(res->target, ioa_cfg->target_ids);
1257 proto = cfgtew->u.cfgte->proto;
1258 res->qmodel = IPR_QUEUEING_MODEL(res);
1259 res->flags = cfgtew->u.cfgte->flags;
1260 if (res->flags & IPR_IS_IOA_RESOURCE)
1261 res->type = IPR_RES_TYPE_IOAFP;
1263 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1265 res->bus = cfgtew->u.cfgte->res_addr.bus;
1266 res->target = cfgtew->u.cfgte->res_addr.target;
1267 res->lun = cfgtew->u.cfgte->res_addr.lun;
1268 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1271 ipr_update_ata_class(res, proto);
1275 * ipr_is_same_device - Determine if two devices are the same.
1276 * @res: resource entry struct
1277 * @cfgtew: config table entry wrapper struct
1280 * 1 if the devices are the same / 0 otherwise
1282 static int ipr_is_same_device(struct ipr_resource_entry *res,
1283 struct ipr_config_table_entry_wrapper *cfgtew)
1285 if (res->ioa_cfg->sis64) {
1286 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1287 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1288 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1289 sizeof(cfgtew->u.cfgte64->lun))) {
1293 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1294 res->target == cfgtew->u.cfgte->res_addr.target &&
1295 res->lun == cfgtew->u.cfgte->res_addr.lun)
1303 * __ipr_format_res_path - Format the resource path for printing.
1304 * @res_path: resource path
1306 * @len: length of buffer provided
1311 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1317 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1318 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1319 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1325 * ipr_format_res_path - Format the resource path for printing.
1326 * @ioa_cfg: ioa config struct
1327 * @res_path: resource path
1329 * @len: length of buffer provided
1334 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1335 u8 *res_path, char *buffer, int len)
1340 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1341 __ipr_format_res_path(res_path, p, len - (buffer - p));
1346 * ipr_update_res_entry - Update the resource entry.
1347 * @res: resource entry struct
1348 * @cfgtew: config table entry wrapper struct
1353 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1354 struct ipr_config_table_entry_wrapper *cfgtew)
1356 char buffer[IPR_MAX_RES_PATH_LENGTH];
1360 if (res->ioa_cfg->sis64) {
1361 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1362 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1363 res->type = cfgtew->u.cfgte64->res_type;
1365 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1366 sizeof(struct ipr_std_inq_data));
1368 res->qmodel = IPR_QUEUEING_MODEL64(res);
1369 proto = cfgtew->u.cfgte64->proto;
1370 res->res_handle = cfgtew->u.cfgte64->res_handle;
1371 res->dev_id = cfgtew->u.cfgte64->dev_id;
1373 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1374 sizeof(res->dev_lun.scsi_lun));
1376 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1377 sizeof(res->res_path))) {
1378 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1379 sizeof(res->res_path));
1383 if (res->sdev && new_path)
1384 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1385 ipr_format_res_path(res->ioa_cfg,
1386 res->res_path, buffer, sizeof(buffer)));
1388 res->flags = cfgtew->u.cfgte->flags;
1389 if (res->flags & IPR_IS_IOA_RESOURCE)
1390 res->type = IPR_RES_TYPE_IOAFP;
1392 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1394 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1395 sizeof(struct ipr_std_inq_data));
1397 res->qmodel = IPR_QUEUEING_MODEL(res);
1398 proto = cfgtew->u.cfgte->proto;
1399 res->res_handle = cfgtew->u.cfgte->res_handle;
1402 ipr_update_ata_class(res, proto);
1406 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1408 * @res: resource entry struct
1409 * @cfgtew: config table entry wrapper struct
1414 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1416 struct ipr_resource_entry *gscsi_res = NULL;
1417 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1419 if (!ioa_cfg->sis64)
1422 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1423 clear_bit(res->target, ioa_cfg->array_ids);
1424 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1425 clear_bit(res->target, ioa_cfg->vset_ids);
1426 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1427 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1428 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1430 clear_bit(res->target, ioa_cfg->target_ids);
1432 } else if (res->bus == 0)
1433 clear_bit(res->target, ioa_cfg->target_ids);
1437 * ipr_handle_config_change - Handle a config change from the adapter
1438 * @ioa_cfg: ioa config struct
1444 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1445 struct ipr_hostrcb *hostrcb)
1447 struct ipr_resource_entry *res = NULL;
1448 struct ipr_config_table_entry_wrapper cfgtew;
1449 __be32 cc_res_handle;
1453 if (ioa_cfg->sis64) {
1454 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1455 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1457 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1458 cc_res_handle = cfgtew.u.cfgte->res_handle;
1461 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1462 if (res->res_handle == cc_res_handle) {
1469 if (list_empty(&ioa_cfg->free_res_q)) {
1470 ipr_send_hcam(ioa_cfg,
1471 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1476 res = list_entry(ioa_cfg->free_res_q.next,
1477 struct ipr_resource_entry, queue);
1479 list_del(&res->queue);
1480 ipr_init_res_entry(res, &cfgtew);
1481 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1484 ipr_update_res_entry(res, &cfgtew);
1486 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1488 res->del_from_ml = 1;
1489 res->res_handle = IPR_INVALID_RES_HANDLE;
1490 schedule_work(&ioa_cfg->work_q);
1492 ipr_clear_res_target(res);
1493 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1495 } else if (!res->sdev || res->del_from_ml) {
1497 schedule_work(&ioa_cfg->work_q);
1500 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1504 * ipr_process_ccn - Op done function for a CCN.
1505 * @ipr_cmd: ipr command struct
1507 * This function is the op done function for a configuration
1508 * change notification host controlled async from the adapter.
1513 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1515 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1516 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1517 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1519 list_del_init(&hostrcb->queue);
1520 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1523 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1524 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1525 dev_err(&ioa_cfg->pdev->dev,
1526 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1528 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1530 ipr_handle_config_change(ioa_cfg, hostrcb);
1535 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1536 * @i: index into buffer
1537 * @buf: string to modify
1539 * This function will strip all trailing whitespace, pad the end
1540 * of the string with a single space, and NULL terminate the string.
1543 * new length of string
1545 static int strip_and_pad_whitespace(int i, char *buf)
1547 while (i && buf[i] == ' ')
1555 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1556 * @prefix: string to print at start of printk
1557 * @hostrcb: hostrcb pointer
1558 * @vpd: vendor/product id/sn struct
1563 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1564 struct ipr_vpd *vpd)
1566 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1569 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1570 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1572 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1573 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1575 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1576 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1578 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1582 * ipr_log_vpd - Log the passed VPD to the error log.
1583 * @vpd: vendor/product id/sn struct
1588 static void ipr_log_vpd(struct ipr_vpd *vpd)
1590 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1591 + IPR_SERIAL_NUM_LEN];
1593 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1594 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1596 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1597 ipr_err("Vendor/Product ID: %s\n", buffer);
1599 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1600 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1601 ipr_err(" Serial Number: %s\n", buffer);
1605 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1606 * @prefix: string to print at start of printk
1607 * @hostrcb: hostrcb pointer
1608 * @vpd: vendor/product id/sn/wwn struct
1613 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1614 struct ipr_ext_vpd *vpd)
1616 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1617 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1618 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1622 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1623 * @vpd: vendor/product id/sn/wwn struct
1628 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1630 ipr_log_vpd(&vpd->vpd);
1631 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1632 be32_to_cpu(vpd->wwid[1]));
1636 * ipr_log_enhanced_cache_error - Log a cache error.
1637 * @ioa_cfg: ioa config struct
1638 * @hostrcb: hostrcb struct
1643 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1644 struct ipr_hostrcb *hostrcb)
1646 struct ipr_hostrcb_type_12_error *error;
1649 error = &hostrcb->hcam.u.error64.u.type_12_error;
1651 error = &hostrcb->hcam.u.error.u.type_12_error;
1653 ipr_err("-----Current Configuration-----\n");
1654 ipr_err("Cache Directory Card Information:\n");
1655 ipr_log_ext_vpd(&error->ioa_vpd);
1656 ipr_err("Adapter Card Information:\n");
1657 ipr_log_ext_vpd(&error->cfc_vpd);
1659 ipr_err("-----Expected Configuration-----\n");
1660 ipr_err("Cache Directory Card Information:\n");
1661 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1662 ipr_err("Adapter Card Information:\n");
1663 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1665 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1666 be32_to_cpu(error->ioa_data[0]),
1667 be32_to_cpu(error->ioa_data[1]),
1668 be32_to_cpu(error->ioa_data[2]));
1672 * ipr_log_cache_error - Log a cache error.
1673 * @ioa_cfg: ioa config struct
1674 * @hostrcb: hostrcb struct
1679 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1680 struct ipr_hostrcb *hostrcb)
1682 struct ipr_hostrcb_type_02_error *error =
1683 &hostrcb->hcam.u.error.u.type_02_error;
1685 ipr_err("-----Current Configuration-----\n");
1686 ipr_err("Cache Directory Card Information:\n");
1687 ipr_log_vpd(&error->ioa_vpd);
1688 ipr_err("Adapter Card Information:\n");
1689 ipr_log_vpd(&error->cfc_vpd);
1691 ipr_err("-----Expected Configuration-----\n");
1692 ipr_err("Cache Directory Card Information:\n");
1693 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1697 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1698 be32_to_cpu(error->ioa_data[0]),
1699 be32_to_cpu(error->ioa_data[1]),
1700 be32_to_cpu(error->ioa_data[2]));
1704 * ipr_log_enhanced_config_error - Log a configuration error.
1705 * @ioa_cfg: ioa config struct
1706 * @hostrcb: hostrcb struct
1711 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1712 struct ipr_hostrcb *hostrcb)
1714 int errors_logged, i;
1715 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1716 struct ipr_hostrcb_type_13_error *error;
1718 error = &hostrcb->hcam.u.error.u.type_13_error;
1719 errors_logged = be32_to_cpu(error->errors_logged);
1721 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1722 be32_to_cpu(error->errors_detected), errors_logged);
1724 dev_entry = error->dev;
1726 for (i = 0; i < errors_logged; i++, dev_entry++) {
1729 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1730 ipr_log_ext_vpd(&dev_entry->vpd);
1732 ipr_err("-----New Device Information-----\n");
1733 ipr_log_ext_vpd(&dev_entry->new_vpd);
1735 ipr_err("Cache Directory Card Information:\n");
1736 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1738 ipr_err("Adapter Card Information:\n");
1739 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1744 * ipr_log_sis64_config_error - Log a device error.
1745 * @ioa_cfg: ioa config struct
1746 * @hostrcb: hostrcb struct
1751 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1752 struct ipr_hostrcb *hostrcb)
1754 int errors_logged, i;
1755 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1756 struct ipr_hostrcb_type_23_error *error;
1757 char buffer[IPR_MAX_RES_PATH_LENGTH];
1759 error = &hostrcb->hcam.u.error64.u.type_23_error;
1760 errors_logged = be32_to_cpu(error->errors_logged);
1762 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1763 be32_to_cpu(error->errors_detected), errors_logged);
1765 dev_entry = error->dev;
1767 for (i = 0; i < errors_logged; i++, dev_entry++) {
1770 ipr_err("Device %d : %s", i + 1,
1771 __ipr_format_res_path(dev_entry->res_path,
1772 buffer, sizeof(buffer)));
1773 ipr_log_ext_vpd(&dev_entry->vpd);
1775 ipr_err("-----New Device Information-----\n");
1776 ipr_log_ext_vpd(&dev_entry->new_vpd);
1778 ipr_err("Cache Directory Card Information:\n");
1779 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1781 ipr_err("Adapter Card Information:\n");
1782 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1787 * ipr_log_config_error - Log a configuration error.
1788 * @ioa_cfg: ioa config struct
1789 * @hostrcb: hostrcb struct
1794 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1795 struct ipr_hostrcb *hostrcb)
1797 int errors_logged, i;
1798 struct ipr_hostrcb_device_data_entry *dev_entry;
1799 struct ipr_hostrcb_type_03_error *error;
1801 error = &hostrcb->hcam.u.error.u.type_03_error;
1802 errors_logged = be32_to_cpu(error->errors_logged);
1804 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1805 be32_to_cpu(error->errors_detected), errors_logged);
1807 dev_entry = error->dev;
1809 for (i = 0; i < errors_logged; i++, dev_entry++) {
1812 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1813 ipr_log_vpd(&dev_entry->vpd);
1815 ipr_err("-----New Device Information-----\n");
1816 ipr_log_vpd(&dev_entry->new_vpd);
1818 ipr_err("Cache Directory Card Information:\n");
1819 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1821 ipr_err("Adapter Card Information:\n");
1822 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1824 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1825 be32_to_cpu(dev_entry->ioa_data[0]),
1826 be32_to_cpu(dev_entry->ioa_data[1]),
1827 be32_to_cpu(dev_entry->ioa_data[2]),
1828 be32_to_cpu(dev_entry->ioa_data[3]),
1829 be32_to_cpu(dev_entry->ioa_data[4]));
1834 * ipr_log_enhanced_array_error - Log an array configuration error.
1835 * @ioa_cfg: ioa config struct
1836 * @hostrcb: hostrcb struct
1841 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1842 struct ipr_hostrcb *hostrcb)
1845 struct ipr_hostrcb_type_14_error *error;
1846 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1847 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1849 error = &hostrcb->hcam.u.error.u.type_14_error;
1853 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1854 error->protection_level,
1855 ioa_cfg->host->host_no,
1856 error->last_func_vset_res_addr.bus,
1857 error->last_func_vset_res_addr.target,
1858 error->last_func_vset_res_addr.lun);
1862 array_entry = error->array_member;
1863 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1864 ARRAY_SIZE(error->array_member));
1866 for (i = 0; i < num_entries; i++, array_entry++) {
1867 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1870 if (be32_to_cpu(error->exposed_mode_adn) == i)
1871 ipr_err("Exposed Array Member %d:\n", i);
1873 ipr_err("Array Member %d:\n", i);
1875 ipr_log_ext_vpd(&array_entry->vpd);
1876 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1877 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1878 "Expected Location");
1885 * ipr_log_array_error - Log an array configuration error.
1886 * @ioa_cfg: ioa config struct
1887 * @hostrcb: hostrcb struct
1892 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1893 struct ipr_hostrcb *hostrcb)
1896 struct ipr_hostrcb_type_04_error *error;
1897 struct ipr_hostrcb_array_data_entry *array_entry;
1898 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1900 error = &hostrcb->hcam.u.error.u.type_04_error;
1904 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1905 error->protection_level,
1906 ioa_cfg->host->host_no,
1907 error->last_func_vset_res_addr.bus,
1908 error->last_func_vset_res_addr.target,
1909 error->last_func_vset_res_addr.lun);
1913 array_entry = error->array_member;
1915 for (i = 0; i < 18; i++) {
1916 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1919 if (be32_to_cpu(error->exposed_mode_adn) == i)
1920 ipr_err("Exposed Array Member %d:\n", i);
1922 ipr_err("Array Member %d:\n", i);
1924 ipr_log_vpd(&array_entry->vpd);
1926 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1927 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1928 "Expected Location");
1933 array_entry = error->array_member2;
1940 * ipr_log_hex_data - Log additional hex IOA error data.
1941 * @ioa_cfg: ioa config struct
1942 * @data: IOA error data
1948 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1955 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1956 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1958 for (i = 0; i < len / 4; i += 4) {
1959 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1960 be32_to_cpu(data[i]),
1961 be32_to_cpu(data[i+1]),
1962 be32_to_cpu(data[i+2]),
1963 be32_to_cpu(data[i+3]));
1968 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1969 * @ioa_cfg: ioa config struct
1970 * @hostrcb: hostrcb struct
1975 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1976 struct ipr_hostrcb *hostrcb)
1978 struct ipr_hostrcb_type_17_error *error;
1981 error = &hostrcb->hcam.u.error64.u.type_17_error;
1983 error = &hostrcb->hcam.u.error.u.type_17_error;
1985 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1986 strim(error->failure_reason);
1988 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1989 be32_to_cpu(hostrcb->hcam.u.error.prc));
1990 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1991 ipr_log_hex_data(ioa_cfg, error->data,
1992 be32_to_cpu(hostrcb->hcam.length) -
1993 (offsetof(struct ipr_hostrcb_error, u) +
1994 offsetof(struct ipr_hostrcb_type_17_error, data)));
1998 * ipr_log_dual_ioa_error - Log a dual adapter error.
1999 * @ioa_cfg: ioa config struct
2000 * @hostrcb: hostrcb struct
2005 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
2006 struct ipr_hostrcb *hostrcb)
2008 struct ipr_hostrcb_type_07_error *error;
2010 error = &hostrcb->hcam.u.error.u.type_07_error;
2011 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2012 strim(error->failure_reason);
2014 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
2015 be32_to_cpu(hostrcb->hcam.u.error.prc));
2016 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
2017 ipr_log_hex_data(ioa_cfg, error->data,
2018 be32_to_cpu(hostrcb->hcam.length) -
2019 (offsetof(struct ipr_hostrcb_error, u) +
2020 offsetof(struct ipr_hostrcb_type_07_error, data)));
2023 static const struct {
2026 } path_active_desc[] = {
2027 { IPR_PATH_NO_INFO, "Path" },
2028 { IPR_PATH_ACTIVE, "Active path" },
2029 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
2032 static const struct {
2035 } path_state_desc[] = {
2036 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
2037 { IPR_PATH_HEALTHY, "is healthy" },
2038 { IPR_PATH_DEGRADED, "is degraded" },
2039 { IPR_PATH_FAILED, "is failed" }
2043 * ipr_log_fabric_path - Log a fabric path error
2044 * @hostrcb: hostrcb struct
2045 * @fabric: fabric descriptor
2050 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2051 struct ipr_hostrcb_fabric_desc *fabric)
2054 u8 path_state = fabric->path_state;
2055 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2056 u8 state = path_state & IPR_PATH_STATE_MASK;
2058 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2059 if (path_active_desc[i].active != active)
2062 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2063 if (path_state_desc[j].state != state)
2066 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2067 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2068 path_active_desc[i].desc, path_state_desc[j].desc,
2070 } else if (fabric->cascaded_expander == 0xff) {
2071 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2072 path_active_desc[i].desc, path_state_desc[j].desc,
2073 fabric->ioa_port, fabric->phy);
2074 } else if (fabric->phy == 0xff) {
2075 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2076 path_active_desc[i].desc, path_state_desc[j].desc,
2077 fabric->ioa_port, fabric->cascaded_expander);
2079 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2080 path_active_desc[i].desc, path_state_desc[j].desc,
2081 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2087 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2088 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2092 * ipr_log64_fabric_path - Log a fabric path error
2093 * @hostrcb: hostrcb struct
2094 * @fabric: fabric descriptor
2099 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2100 struct ipr_hostrcb64_fabric_desc *fabric)
2103 u8 path_state = fabric->path_state;
2104 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2105 u8 state = path_state & IPR_PATH_STATE_MASK;
2106 char buffer[IPR_MAX_RES_PATH_LENGTH];
2108 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2109 if (path_active_desc[i].active != active)
2112 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2113 if (path_state_desc[j].state != state)
2116 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2117 path_active_desc[i].desc, path_state_desc[j].desc,
2118 ipr_format_res_path(hostrcb->ioa_cfg,
2120 buffer, sizeof(buffer)));
2125 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2126 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2127 buffer, sizeof(buffer)));
2130 static const struct {
2133 } path_type_desc[] = {
2134 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2135 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2136 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2137 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2140 static const struct {
2143 } path_status_desc[] = {
2144 { IPR_PATH_CFG_NO_PROB, "Functional" },
2145 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2146 { IPR_PATH_CFG_FAILED, "Failed" },
2147 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2148 { IPR_PATH_NOT_DETECTED, "Missing" },
2149 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2152 static const char *link_rate[] = {
2155 "phy reset problem",
2172 * ipr_log_path_elem - Log a fabric path element.
2173 * @hostrcb: hostrcb struct
2174 * @cfg: fabric path element struct
2179 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2180 struct ipr_hostrcb_config_element *cfg)
2183 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2184 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2186 if (type == IPR_PATH_CFG_NOT_EXIST)
2189 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2190 if (path_type_desc[i].type != type)
2193 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2194 if (path_status_desc[j].status != status)
2197 if (type == IPR_PATH_CFG_IOA_PORT) {
2198 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2199 path_status_desc[j].desc, path_type_desc[i].desc,
2200 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2201 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2203 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2204 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2205 path_status_desc[j].desc, path_type_desc[i].desc,
2206 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2207 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2208 } else if (cfg->cascaded_expander == 0xff) {
2209 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2210 "WWN=%08X%08X\n", path_status_desc[j].desc,
2211 path_type_desc[i].desc, cfg->phy,
2212 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2213 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2214 } else if (cfg->phy == 0xff) {
2215 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2216 "WWN=%08X%08X\n", path_status_desc[j].desc,
2217 path_type_desc[i].desc, cfg->cascaded_expander,
2218 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2219 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2221 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2222 "WWN=%08X%08X\n", path_status_desc[j].desc,
2223 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2224 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2225 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2234 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2235 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2239 * ipr_log64_path_elem - Log a fabric path element.
2240 * @hostrcb: hostrcb struct
2241 * @cfg: fabric path element struct
2246 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2247 struct ipr_hostrcb64_config_element *cfg)
2250 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2251 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2252 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2253 char buffer[IPR_MAX_RES_PATH_LENGTH];
2255 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2258 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2259 if (path_type_desc[i].type != type)
2262 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2263 if (path_status_desc[j].status != status)
2266 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2267 path_status_desc[j].desc, path_type_desc[i].desc,
2268 ipr_format_res_path(hostrcb->ioa_cfg,
2269 cfg->res_path, buffer, sizeof(buffer)),
2270 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2271 be32_to_cpu(cfg->wwid[0]),
2272 be32_to_cpu(cfg->wwid[1]));
2276 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2277 "WWN=%08X%08X\n", cfg->type_status,
2278 ipr_format_res_path(hostrcb->ioa_cfg,
2279 cfg->res_path, buffer, sizeof(buffer)),
2280 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2281 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2285 * ipr_log_fabric_error - Log a fabric error.
2286 * @ioa_cfg: ioa config struct
2287 * @hostrcb: hostrcb struct
2292 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2293 struct ipr_hostrcb *hostrcb)
2295 struct ipr_hostrcb_type_20_error *error;
2296 struct ipr_hostrcb_fabric_desc *fabric;
2297 struct ipr_hostrcb_config_element *cfg;
2300 error = &hostrcb->hcam.u.error.u.type_20_error;
2301 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2302 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2304 add_len = be32_to_cpu(hostrcb->hcam.length) -
2305 (offsetof(struct ipr_hostrcb_error, u) +
2306 offsetof(struct ipr_hostrcb_type_20_error, desc));
2308 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2309 ipr_log_fabric_path(hostrcb, fabric);
2310 for_each_fabric_cfg(fabric, cfg)
2311 ipr_log_path_elem(hostrcb, cfg);
2313 add_len -= be16_to_cpu(fabric->length);
2314 fabric = (struct ipr_hostrcb_fabric_desc *)
2315 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2318 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2322 * ipr_log_sis64_array_error - Log a sis64 array error.
2323 * @ioa_cfg: ioa config struct
2324 * @hostrcb: hostrcb struct
2329 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2330 struct ipr_hostrcb *hostrcb)
2333 struct ipr_hostrcb_type_24_error *error;
2334 struct ipr_hostrcb64_array_data_entry *array_entry;
2335 char buffer[IPR_MAX_RES_PATH_LENGTH];
2336 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2338 error = &hostrcb->hcam.u.error64.u.type_24_error;
2342 ipr_err("RAID %s Array Configuration: %s\n",
2343 error->protection_level,
2344 ipr_format_res_path(ioa_cfg, error->last_res_path,
2345 buffer, sizeof(buffer)));
2349 array_entry = error->array_member;
2350 num_entries = min_t(u32, error->num_entries,
2351 ARRAY_SIZE(error->array_member));
2353 for (i = 0; i < num_entries; i++, array_entry++) {
2355 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2358 if (error->exposed_mode_adn == i)
2359 ipr_err("Exposed Array Member %d:\n", i);
2361 ipr_err("Array Member %d:\n", i);
2363 ipr_err("Array Member %d:\n", i);
2364 ipr_log_ext_vpd(&array_entry->vpd);
2365 ipr_err("Current Location: %s\n",
2366 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2367 buffer, sizeof(buffer)));
2368 ipr_err("Expected Location: %s\n",
2369 ipr_format_res_path(ioa_cfg,
2370 array_entry->expected_res_path,
2371 buffer, sizeof(buffer)));
2378 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2379 * @ioa_cfg: ioa config struct
2380 * @hostrcb: hostrcb struct
2385 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2386 struct ipr_hostrcb *hostrcb)
2388 struct ipr_hostrcb_type_30_error *error;
2389 struct ipr_hostrcb64_fabric_desc *fabric;
2390 struct ipr_hostrcb64_config_element *cfg;
2393 error = &hostrcb->hcam.u.error64.u.type_30_error;
2395 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2396 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2398 add_len = be32_to_cpu(hostrcb->hcam.length) -
2399 (offsetof(struct ipr_hostrcb64_error, u) +
2400 offsetof(struct ipr_hostrcb_type_30_error, desc));
2402 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2403 ipr_log64_fabric_path(hostrcb, fabric);
2404 for_each_fabric_cfg(fabric, cfg)
2405 ipr_log64_path_elem(hostrcb, cfg);
2407 add_len -= be16_to_cpu(fabric->length);
2408 fabric = (struct ipr_hostrcb64_fabric_desc *)
2409 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2412 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2416 * ipr_log_generic_error - Log an adapter error.
2417 * @ioa_cfg: ioa config struct
2418 * @hostrcb: hostrcb struct
2423 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2424 struct ipr_hostrcb *hostrcb)
2426 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2427 be32_to_cpu(hostrcb->hcam.length));
2431 * ipr_log_sis64_device_error - Log a cache error.
2432 * @ioa_cfg: ioa config struct
2433 * @hostrcb: hostrcb struct
2438 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2439 struct ipr_hostrcb *hostrcb)
2441 struct ipr_hostrcb_type_21_error *error;
2442 char buffer[IPR_MAX_RES_PATH_LENGTH];
2444 error = &hostrcb->hcam.u.error64.u.type_21_error;
2446 ipr_err("-----Failing Device Information-----\n");
2447 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2448 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2449 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2450 ipr_err("Device Resource Path: %s\n",
2451 __ipr_format_res_path(error->res_path,
2452 buffer, sizeof(buffer)));
2453 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2454 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2455 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2456 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2457 ipr_err("SCSI Sense Data:\n");
2458 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2459 ipr_err("SCSI Command Descriptor Block: \n");
2460 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2462 ipr_err("Additional IOA Data:\n");
2463 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2467 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2470 * This function will return the index of into the ipr_error_table
2471 * for the specified IOASC. If the IOASC is not in the table,
2472 * 0 will be returned, which points to the entry used for unknown errors.
2475 * index into the ipr_error_table
2477 static u32 ipr_get_error(u32 ioasc)
2481 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2482 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2489 * ipr_handle_log_data - Log an adapter error.
2490 * @ioa_cfg: ioa config struct
2491 * @hostrcb: hostrcb struct
2493 * This function logs an adapter error to the system.
2498 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2499 struct ipr_hostrcb *hostrcb)
2503 struct ipr_hostrcb_type_21_error *error;
2505 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2508 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2509 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2512 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2514 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2516 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2517 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2518 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2519 scsi_report_bus_reset(ioa_cfg->host,
2520 hostrcb->hcam.u.error.fd_res_addr.bus);
2523 error_index = ipr_get_error(ioasc);
2525 if (!ipr_error_table[error_index].log_hcam)
2528 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2529 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2530 error = &hostrcb->hcam.u.error64.u.type_21_error;
2532 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2533 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2537 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2539 /* Set indication we have logged an error */
2540 ioa_cfg->errors_logged++;
2542 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2544 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2545 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2547 switch (hostrcb->hcam.overlay_id) {
2548 case IPR_HOST_RCB_OVERLAY_ID_2:
2549 ipr_log_cache_error(ioa_cfg, hostrcb);
2551 case IPR_HOST_RCB_OVERLAY_ID_3:
2552 ipr_log_config_error(ioa_cfg, hostrcb);
2554 case IPR_HOST_RCB_OVERLAY_ID_4:
2555 case IPR_HOST_RCB_OVERLAY_ID_6:
2556 ipr_log_array_error(ioa_cfg, hostrcb);
2558 case IPR_HOST_RCB_OVERLAY_ID_7:
2559 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2561 case IPR_HOST_RCB_OVERLAY_ID_12:
2562 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2564 case IPR_HOST_RCB_OVERLAY_ID_13:
2565 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2567 case IPR_HOST_RCB_OVERLAY_ID_14:
2568 case IPR_HOST_RCB_OVERLAY_ID_16:
2569 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2571 case IPR_HOST_RCB_OVERLAY_ID_17:
2572 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2574 case IPR_HOST_RCB_OVERLAY_ID_20:
2575 ipr_log_fabric_error(ioa_cfg, hostrcb);
2577 case IPR_HOST_RCB_OVERLAY_ID_21:
2578 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2580 case IPR_HOST_RCB_OVERLAY_ID_23:
2581 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2583 case IPR_HOST_RCB_OVERLAY_ID_24:
2584 case IPR_HOST_RCB_OVERLAY_ID_26:
2585 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2587 case IPR_HOST_RCB_OVERLAY_ID_30:
2588 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2590 case IPR_HOST_RCB_OVERLAY_ID_1:
2591 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2593 ipr_log_generic_error(ioa_cfg, hostrcb);
2598 static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
2600 struct ipr_hostrcb *hostrcb;
2602 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
2603 struct ipr_hostrcb, queue);
2605 if (unlikely(!hostrcb)) {
2606 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
2607 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
2608 struct ipr_hostrcb, queue);
2611 list_del_init(&hostrcb->queue);
2616 * ipr_process_error - Op done function for an adapter error log.
2617 * @ipr_cmd: ipr command struct
2619 * This function is the op done function for an error log host
2620 * controlled async from the adapter. It will log the error and
2621 * send the HCAM back to the adapter.
2626 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2629 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2630 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2634 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2636 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2638 list_del_init(&hostrcb->queue);
2639 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2642 ipr_handle_log_data(ioa_cfg, hostrcb);
2643 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2644 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2645 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2646 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2647 dev_err(&ioa_cfg->pdev->dev,
2648 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2651 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
2652 schedule_work(&ioa_cfg->work_q);
2653 hostrcb = ipr_get_free_hostrcb(ioa_cfg);
2655 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2659 * ipr_timeout - An internally generated op has timed out.
2660 * @ipr_cmd: ipr command struct
2662 * This function blocks host requests and initiates an
2668 static void ipr_timeout(struct timer_list *t)
2670 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
2671 unsigned long lock_flags = 0;
2672 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2675 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2677 ioa_cfg->errors_logged++;
2678 dev_err(&ioa_cfg->pdev->dev,
2679 "Adapter being reset due to command timeout.\n");
2681 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2682 ioa_cfg->sdt_state = GET_DUMP;
2684 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2685 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2692 * ipr_oper_timeout - Adapter timed out transitioning to operational
2693 * @ipr_cmd: ipr command struct
2695 * This function blocks host requests and initiates an
2701 static void ipr_oper_timeout(struct timer_list *t)
2703 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
2704 unsigned long lock_flags = 0;
2705 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2708 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2710 ioa_cfg->errors_logged++;
2711 dev_err(&ioa_cfg->pdev->dev,
2712 "Adapter timed out transitioning to operational.\n");
2714 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2715 ioa_cfg->sdt_state = GET_DUMP;
2717 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2719 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2720 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2728 * ipr_find_ses_entry - Find matching SES in SES table
2729 * @res: resource entry struct of SES
2732 * pointer to SES table entry / NULL on failure
2734 static const struct ipr_ses_table_entry *
2735 ipr_find_ses_entry(struct ipr_resource_entry *res)
2738 struct ipr_std_inq_vpids *vpids;
2739 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2741 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2742 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2743 if (ste->compare_product_id_byte[j] == 'X') {
2744 vpids = &res->std_inq_data.vpids;
2745 if (vpids->product_id[j] == ste->product_id[j])
2753 if (matches == IPR_PROD_ID_LEN)
2761 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2762 * @ioa_cfg: ioa config struct
2764 * @bus_width: bus width
2767 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2768 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2769 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2770 * max 160MHz = max 320MB/sec).
2772 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2774 struct ipr_resource_entry *res;
2775 const struct ipr_ses_table_entry *ste;
2776 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2778 /* Loop through each config table entry in the config table buffer */
2779 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2780 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2783 if (bus != res->bus)
2786 if (!(ste = ipr_find_ses_entry(res)))
2789 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2792 return max_xfer_rate;
2796 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2797 * @ioa_cfg: ioa config struct
2798 * @max_delay: max delay in micro-seconds to wait
2800 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2803 * 0 on success / other on failure
2805 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2807 volatile u32 pcii_reg;
2810 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2811 while (delay < max_delay) {
2812 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2814 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2817 /* udelay cannot be used if delay is more than a few milliseconds */
2818 if ((delay / 1000) > MAX_UDELAY_MS)
2819 mdelay(delay / 1000);
2829 * ipr_get_sis64_dump_data_section - Dump IOA memory
2830 * @ioa_cfg: ioa config struct
2831 * @start_addr: adapter address to dump
2832 * @dest: destination kernel buffer
2833 * @length_in_words: length to dump in 4 byte words
2838 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2840 __be32 *dest, u32 length_in_words)
2844 for (i = 0; i < length_in_words; i++) {
2845 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2846 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2854 * ipr_get_ldump_data_section - Dump IOA memory
2855 * @ioa_cfg: ioa config struct
2856 * @start_addr: adapter address to dump
2857 * @dest: destination kernel buffer
2858 * @length_in_words: length to dump in 4 byte words
2861 * 0 on success / -EIO on failure
2863 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2865 __be32 *dest, u32 length_in_words)
2867 volatile u32 temp_pcii_reg;
2871 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2872 dest, length_in_words);
2874 /* Write IOA interrupt reg starting LDUMP state */
2875 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2876 ioa_cfg->regs.set_uproc_interrupt_reg32);
2878 /* Wait for IO debug acknowledge */
2879 if (ipr_wait_iodbg_ack(ioa_cfg,
2880 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2881 dev_err(&ioa_cfg->pdev->dev,
2882 "IOA dump long data transfer timeout\n");
2886 /* Signal LDUMP interlocked - clear IO debug ack */
2887 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2888 ioa_cfg->regs.clr_interrupt_reg);
2890 /* Write Mailbox with starting address */
2891 writel(start_addr, ioa_cfg->ioa_mailbox);
2893 /* Signal address valid - clear IOA Reset alert */
2894 writel(IPR_UPROCI_RESET_ALERT,
2895 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2897 for (i = 0; i < length_in_words; i++) {
2898 /* Wait for IO debug acknowledge */
2899 if (ipr_wait_iodbg_ack(ioa_cfg,
2900 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2901 dev_err(&ioa_cfg->pdev->dev,
2902 "IOA dump short data transfer timeout\n");
2906 /* Read data from mailbox and increment destination pointer */
2907 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2910 /* For all but the last word of data, signal data received */
2911 if (i < (length_in_words - 1)) {
2912 /* Signal dump data received - Clear IO debug Ack */
2913 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2914 ioa_cfg->regs.clr_interrupt_reg);
2918 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2919 writel(IPR_UPROCI_RESET_ALERT,
2920 ioa_cfg->regs.set_uproc_interrupt_reg32);
2922 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2923 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2925 /* Signal dump data received - Clear IO debug Ack */
2926 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2927 ioa_cfg->regs.clr_interrupt_reg);
2929 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2930 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2932 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2934 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2944 #ifdef CONFIG_SCSI_IPR_DUMP
2946 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2947 * @ioa_cfg: ioa config struct
2948 * @pci_address: adapter address
2949 * @length: length of data to copy
2951 * Copy data from PCI adapter to kernel buffer.
2952 * Note: length MUST be a 4 byte multiple
2954 * 0 on success / other on failure
2956 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2957 unsigned long pci_address, u32 length)
2959 int bytes_copied = 0;
2960 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2962 unsigned long lock_flags = 0;
2963 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2966 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2968 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2970 while (bytes_copied < length &&
2971 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2972 if (ioa_dump->page_offset >= PAGE_SIZE ||
2973 ioa_dump->page_offset == 0) {
2974 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2978 return bytes_copied;
2981 ioa_dump->page_offset = 0;
2982 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2983 ioa_dump->next_page_index++;
2985 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2987 rem_len = length - bytes_copied;
2988 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2989 cur_len = min(rem_len, rem_page_len);
2991 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2992 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2995 rc = ipr_get_ldump_data_section(ioa_cfg,
2996 pci_address + bytes_copied,
2997 &page[ioa_dump->page_offset / 4],
2998 (cur_len / sizeof(u32)));
3000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3003 ioa_dump->page_offset += cur_len;
3004 bytes_copied += cur_len;
3012 return bytes_copied;
3016 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
3017 * @hdr: dump entry header struct
3022 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
3024 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
3026 hdr->offset = sizeof(*hdr);
3027 hdr->status = IPR_DUMP_STATUS_SUCCESS;
3031 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
3032 * @ioa_cfg: ioa config struct
3033 * @driver_dump: driver dump struct
3038 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
3039 struct ipr_driver_dump *driver_dump)
3041 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3043 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
3044 driver_dump->ioa_type_entry.hdr.len =
3045 sizeof(struct ipr_dump_ioa_type_entry) -
3046 sizeof(struct ipr_dump_entry_header);
3047 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3048 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
3049 driver_dump->ioa_type_entry.type = ioa_cfg->type;
3050 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
3051 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
3052 ucode_vpd->minor_release[1];
3053 driver_dump->hdr.num_entries++;
3057 * ipr_dump_version_data - Fill in the driver version in the dump.
3058 * @ioa_cfg: ioa config struct
3059 * @driver_dump: driver dump struct
3064 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
3065 struct ipr_driver_dump *driver_dump)
3067 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3068 driver_dump->version_entry.hdr.len =
3069 sizeof(struct ipr_dump_version_entry) -
3070 sizeof(struct ipr_dump_entry_header);
3071 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3072 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3073 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3074 driver_dump->hdr.num_entries++;
3078 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3079 * @ioa_cfg: ioa config struct
3080 * @driver_dump: driver dump struct
3085 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3086 struct ipr_driver_dump *driver_dump)
3088 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3089 driver_dump->trace_entry.hdr.len =
3090 sizeof(struct ipr_dump_trace_entry) -
3091 sizeof(struct ipr_dump_entry_header);
3092 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3093 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3094 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3095 driver_dump->hdr.num_entries++;
3099 * ipr_dump_location_data - Fill in the IOA location in the dump.
3100 * @ioa_cfg: ioa config struct
3101 * @driver_dump: driver dump struct
3106 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3107 struct ipr_driver_dump *driver_dump)
3109 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3110 driver_dump->location_entry.hdr.len =
3111 sizeof(struct ipr_dump_location_entry) -
3112 sizeof(struct ipr_dump_entry_header);
3113 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3114 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3115 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3116 driver_dump->hdr.num_entries++;
3120 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3121 * @ioa_cfg: ioa config struct
3122 * @dump: dump struct
3127 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3129 unsigned long start_addr, sdt_word;
3130 unsigned long lock_flags = 0;
3131 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3132 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3133 u32 num_entries, max_num_entries, start_off, end_off;
3134 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3135 struct ipr_sdt *sdt;
3141 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3143 if (ioa_cfg->sdt_state != READ_DUMP) {
3144 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3148 if (ioa_cfg->sis64) {
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3150 ssleep(IPR_DUMP_DELAY_SECONDS);
3151 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3154 start_addr = readl(ioa_cfg->ioa_mailbox);
3156 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3157 dev_err(&ioa_cfg->pdev->dev,
3158 "Invalid dump table format: %lx\n", start_addr);
3159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3163 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3165 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3167 /* Initialize the overall dump header */
3168 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3169 driver_dump->hdr.num_entries = 1;
3170 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3171 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3172 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3173 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3175 ipr_dump_version_data(ioa_cfg, driver_dump);
3176 ipr_dump_location_data(ioa_cfg, driver_dump);
3177 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3178 ipr_dump_trace_data(ioa_cfg, driver_dump);
3180 /* Update dump_header */
3181 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3183 /* IOA Dump entry */
3184 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3185 ioa_dump->hdr.len = 0;
3186 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3187 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3189 /* First entries in sdt are actually a list of dump addresses and
3190 lengths to gather the real dump data. sdt represents the pointer
3191 to the ioa generated dump table. Dump data will be extracted based
3192 on entries in this table */
3193 sdt = &ioa_dump->sdt;
3195 if (ioa_cfg->sis64) {
3196 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3197 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3199 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3200 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3203 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3204 (max_num_entries * sizeof(struct ipr_sdt_entry));
3205 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3206 bytes_to_copy / sizeof(__be32));
3208 /* Smart Dump table is ready to use and the first entry is valid */
3209 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3210 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3211 dev_err(&ioa_cfg->pdev->dev,
3212 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3213 rc, be32_to_cpu(sdt->hdr.state));
3214 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3215 ioa_cfg->sdt_state = DUMP_OBTAINED;
3216 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3220 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3222 if (num_entries > max_num_entries)
3223 num_entries = max_num_entries;
3225 /* Update dump length to the actual data to be copied */
3226 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3228 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3230 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3232 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3234 for (i = 0; i < num_entries; i++) {
3235 if (ioa_dump->hdr.len > max_dump_size) {
3236 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3240 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3241 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3243 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3245 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3246 end_off = be32_to_cpu(sdt->entry[i].end_token);
3248 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3249 bytes_to_copy = end_off - start_off;
3254 if (bytes_to_copy > max_dump_size) {
3255 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3259 /* Copy data from adapter to driver buffers */
3260 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3263 ioa_dump->hdr.len += bytes_copied;
3265 if (bytes_copied != bytes_to_copy) {
3266 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3273 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3275 /* Update dump_header */
3276 driver_dump->hdr.len += ioa_dump->hdr.len;
3278 ioa_cfg->sdt_state = DUMP_OBTAINED;
3283 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3287 * ipr_release_dump - Free adapter dump memory
3288 * @kref: kref struct
3293 static void ipr_release_dump(struct kref *kref)
3295 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3296 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3297 unsigned long lock_flags = 0;
3301 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3302 ioa_cfg->dump = NULL;
3303 ioa_cfg->sdt_state = INACTIVE;
3304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3306 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3307 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3309 vfree(dump->ioa_dump.ioa_data);
3315 * ipr_worker_thread - Worker thread
3316 * @work: ioa config struct
3318 * Called at task level from a work thread. This function takes care
3319 * of adding and removing device from the mid-layer as configuration
3320 * changes are detected by the adapter.
3325 static void ipr_worker_thread(struct work_struct *work)
3327 unsigned long lock_flags;
3328 struct ipr_resource_entry *res;
3329 struct scsi_device *sdev;
3330 struct ipr_dump *dump;
3331 struct ipr_ioa_cfg *ioa_cfg =
3332 container_of(work, struct ipr_ioa_cfg, work_q);
3333 u8 bus, target, lun;
3337 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3339 if (ioa_cfg->sdt_state == READ_DUMP) {
3340 dump = ioa_cfg->dump;
3342 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3345 kref_get(&dump->kref);
3346 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3347 ipr_get_ioa_dump(ioa_cfg, dump);
3348 kref_put(&dump->kref, ipr_release_dump);
3350 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3351 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3352 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3357 if (ioa_cfg->scsi_unblock) {
3358 ioa_cfg->scsi_unblock = 0;
3359 ioa_cfg->scsi_blocked = 0;
3360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3361 scsi_unblock_requests(ioa_cfg->host);
3362 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3363 if (ioa_cfg->scsi_blocked)
3364 scsi_block_requests(ioa_cfg->host);
3367 if (!ioa_cfg->scan_enabled) {
3368 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3376 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3380 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3381 if (res->del_from_ml && res->sdev) {
3384 if (!scsi_device_get(sdev)) {
3385 if (!res->add_to_ml)
3386 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3388 res->del_from_ml = 0;
3389 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3390 scsi_remove_device(sdev);
3391 scsi_device_put(sdev);
3392 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3399 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3400 if (res->add_to_ml) {
3402 target = res->target;
3405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3406 scsi_add_device(ioa_cfg->host, bus, target, lun);
3407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3412 ioa_cfg->scan_done = 1;
3413 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3414 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3418 #ifdef CONFIG_SCSI_IPR_TRACE
3420 * ipr_read_trace - Dump the adapter trace
3421 * @filp: open sysfs file
3422 * @kobj: kobject struct
3423 * @bin_attr: bin_attribute struct
3426 * @count: buffer size
3429 * number of bytes printed to buffer
3431 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3432 struct bin_attribute *bin_attr,
3433 char *buf, loff_t off, size_t count)
3435 struct device *dev = container_of(kobj, struct device, kobj);
3436 struct Scsi_Host *shost = class_to_shost(dev);
3437 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3438 unsigned long lock_flags = 0;
3441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3442 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3449 static struct bin_attribute ipr_trace_attr = {
3455 .read = ipr_read_trace,
3460 * ipr_show_fw_version - Show the firmware version
3461 * @dev: class device struct
3465 * number of bytes printed to buffer
3467 static ssize_t ipr_show_fw_version(struct device *dev,
3468 struct device_attribute *attr, char *buf)
3470 struct Scsi_Host *shost = class_to_shost(dev);
3471 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3472 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3473 unsigned long lock_flags = 0;
3476 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3477 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3478 ucode_vpd->major_release, ucode_vpd->card_type,
3479 ucode_vpd->minor_release[0],
3480 ucode_vpd->minor_release[1]);
3481 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3485 static struct device_attribute ipr_fw_version_attr = {
3487 .name = "fw_version",
3490 .show = ipr_show_fw_version,
3494 * ipr_show_log_level - Show the adapter's error logging level
3495 * @dev: class device struct
3499 * number of bytes printed to buffer
3501 static ssize_t ipr_show_log_level(struct device *dev,
3502 struct device_attribute *attr, char *buf)
3504 struct Scsi_Host *shost = class_to_shost(dev);
3505 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3506 unsigned long lock_flags = 0;
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3511 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3516 * ipr_store_log_level - Change the adapter's error logging level
3517 * @dev: class device struct
3521 * number of bytes printed to buffer
3523 static ssize_t ipr_store_log_level(struct device *dev,
3524 struct device_attribute *attr,
3525 const char *buf, size_t count)
3527 struct Scsi_Host *shost = class_to_shost(dev);
3528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3529 unsigned long lock_flags = 0;
3531 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3532 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3537 static struct device_attribute ipr_log_level_attr = {
3539 .name = "log_level",
3540 .mode = S_IRUGO | S_IWUSR,
3542 .show = ipr_show_log_level,
3543 .store = ipr_store_log_level
3547 * ipr_store_diagnostics - IOA Diagnostics interface
3548 * @dev: device struct
3550 * @count: buffer size
3552 * This function will reset the adapter and wait a reasonable
3553 * amount of time for any errors that the adapter might log.
3556 * count on success / other on failure
3558 static ssize_t ipr_store_diagnostics(struct device *dev,
3559 struct device_attribute *attr,
3560 const char *buf, size_t count)
3562 struct Scsi_Host *shost = class_to_shost(dev);
3563 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3564 unsigned long lock_flags = 0;
3567 if (!capable(CAP_SYS_ADMIN))
3570 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3571 while (ioa_cfg->in_reset_reload) {
3572 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3573 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3574 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3577 ioa_cfg->errors_logged = 0;
3578 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3580 if (ioa_cfg->in_reset_reload) {
3581 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3582 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3584 /* Wait for a second for any errors to be logged */
3587 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3591 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3592 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3594 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3599 static struct device_attribute ipr_diagnostics_attr = {
3601 .name = "run_diagnostics",
3604 .store = ipr_store_diagnostics
3608 * ipr_show_adapter_state - Show the adapter's state
3609 * @class_dev: device struct
3613 * number of bytes printed to buffer
3615 static ssize_t ipr_show_adapter_state(struct device *dev,
3616 struct device_attribute *attr, char *buf)
3618 struct Scsi_Host *shost = class_to_shost(dev);
3619 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3620 unsigned long lock_flags = 0;
3623 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3624 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3625 len = snprintf(buf, PAGE_SIZE, "offline\n");
3627 len = snprintf(buf, PAGE_SIZE, "online\n");
3628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3633 * ipr_store_adapter_state - Change adapter state
3634 * @dev: device struct
3636 * @count: buffer size
3638 * This function will change the adapter's state.
3641 * count on success / other on failure
3643 static ssize_t ipr_store_adapter_state(struct device *dev,
3644 struct device_attribute *attr,
3645 const char *buf, size_t count)
3647 struct Scsi_Host *shost = class_to_shost(dev);
3648 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3649 unsigned long lock_flags;
3650 int result = count, i;
3652 if (!capable(CAP_SYS_ADMIN))
3655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3656 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3657 !strncmp(buf, "online", 6)) {
3658 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3659 spin_lock(&ioa_cfg->hrrq[i]._lock);
3660 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3661 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3664 ioa_cfg->reset_retries = 0;
3665 ioa_cfg->in_ioa_bringdown = 0;
3666 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3668 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3669 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3674 static struct device_attribute ipr_ioa_state_attr = {
3676 .name = "online_state",
3677 .mode = S_IRUGO | S_IWUSR,
3679 .show = ipr_show_adapter_state,
3680 .store = ipr_store_adapter_state
3684 * ipr_store_reset_adapter - Reset the adapter
3685 * @dev: device struct
3687 * @count: buffer size
3689 * This function will reset the adapter.
3692 * count on success / other on failure
3694 static ssize_t ipr_store_reset_adapter(struct device *dev,
3695 struct device_attribute *attr,
3696 const char *buf, size_t count)
3698 struct Scsi_Host *shost = class_to_shost(dev);
3699 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3700 unsigned long lock_flags;
3703 if (!capable(CAP_SYS_ADMIN))
3706 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3707 if (!ioa_cfg->in_reset_reload)
3708 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3709 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3710 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3715 static struct device_attribute ipr_ioa_reset_attr = {
3717 .name = "reset_host",
3720 .store = ipr_store_reset_adapter
3723 static int ipr_iopoll(struct irq_poll *iop, int budget);
3725 * ipr_show_iopoll_weight - Show ipr polling mode
3726 * @dev: class device struct
3730 * number of bytes printed to buffer
3732 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3733 struct device_attribute *attr, char *buf)
3735 struct Scsi_Host *shost = class_to_shost(dev);
3736 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3737 unsigned long lock_flags = 0;
3740 spin_lock_irqsave(shost->host_lock, lock_flags);
3741 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3742 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3748 * ipr_store_iopoll_weight - Change the adapter's polling mode
3749 * @dev: class device struct
3753 * number of bytes printed to buffer
3755 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3756 struct device_attribute *attr,
3757 const char *buf, size_t count)
3759 struct Scsi_Host *shost = class_to_shost(dev);
3760 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3761 unsigned long user_iopoll_weight;
3762 unsigned long lock_flags = 0;
3765 if (!ioa_cfg->sis64) {
3766 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
3769 if (kstrtoul(buf, 10, &user_iopoll_weight))
3772 if (user_iopoll_weight > 256) {
3773 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
3777 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3778 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
3782 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3783 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3784 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
3787 spin_lock_irqsave(shost->host_lock, lock_flags);
3788 ioa_cfg->iopoll_weight = user_iopoll_weight;
3789 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3790 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3791 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
3792 ioa_cfg->iopoll_weight, ipr_iopoll);
3795 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3800 static struct device_attribute ipr_iopoll_weight_attr = {
3802 .name = "iopoll_weight",
3803 .mode = S_IRUGO | S_IWUSR,
3805 .show = ipr_show_iopoll_weight,
3806 .store = ipr_store_iopoll_weight
3810 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3811 * @buf_len: buffer length
3813 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3814 * list to use for microcode download
3817 * pointer to sglist / NULL on failure
3819 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3822 struct ipr_sglist *sglist;
3824 /* Get the minimum size per scatter/gather element */
3825 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3827 /* Get the actual size per element */
3828 order = get_order(sg_size);
3830 /* Allocate a scatter/gather list for the DMA */
3831 sglist = kzalloc(sizeof(struct ipr_sglist), GFP_KERNEL);
3832 if (sglist == NULL) {
3836 sglist->order = order;
3837 sglist->scatterlist = sgl_alloc_order(buf_len, order, false, GFP_KERNEL,
3839 if (!sglist->scatterlist) {
3848 * ipr_free_ucode_buffer - Frees a microcode download buffer
3849 * @p_dnld: scatter/gather list pointer
3851 * Free a DMA'able ucode download buffer previously allocated with
3852 * ipr_alloc_ucode_buffer
3857 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3859 sgl_free_order(sglist->scatterlist, sglist->order);
3864 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3865 * @sglist: scatter/gather list pointer
3866 * @buffer: buffer pointer
3867 * @len: buffer length
3869 * Copy a microcode image from a user buffer into a buffer allocated by
3870 * ipr_alloc_ucode_buffer
3873 * 0 on success / other on failure
3875 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3876 u8 *buffer, u32 len)
3878 int bsize_elem, i, result = 0;
3879 struct scatterlist *scatterlist;
3882 /* Determine the actual number of bytes per element */
3883 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3885 scatterlist = sglist->scatterlist;
3887 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3888 struct page *page = sg_page(&scatterlist[i]);
3891 memcpy(kaddr, buffer, bsize_elem);
3894 scatterlist[i].length = bsize_elem;
3902 if (len % bsize_elem) {
3903 struct page *page = sg_page(&scatterlist[i]);
3906 memcpy(kaddr, buffer, len % bsize_elem);
3909 scatterlist[i].length = len % bsize_elem;
3912 sglist->buffer_len = len;
3917 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3918 * @ipr_cmd: ipr command struct
3919 * @sglist: scatter/gather list
3921 * Builds a microcode download IOA data list (IOADL).
3924 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3925 struct ipr_sglist *sglist)
3927 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3928 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3929 struct scatterlist *scatterlist = sglist->scatterlist;
3932 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3933 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3934 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3937 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3938 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3939 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3940 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3941 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3944 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3948 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3949 * @ipr_cmd: ipr command struct
3950 * @sglist: scatter/gather list
3952 * Builds a microcode download IOA data list (IOADL).
3955 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3956 struct ipr_sglist *sglist)
3958 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3959 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3960 struct scatterlist *scatterlist = sglist->scatterlist;
3963 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3964 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3965 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3968 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3970 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3971 ioadl[i].flags_and_data_len =
3972 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3974 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3977 ioadl[i-1].flags_and_data_len |=
3978 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3982 * ipr_update_ioa_ucode - Update IOA's microcode
3983 * @ioa_cfg: ioa config struct
3984 * @sglist: scatter/gather list
3986 * Initiate an adapter reset to update the IOA's microcode
3989 * 0 on success / -EIO on failure
3991 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3992 struct ipr_sglist *sglist)
3994 unsigned long lock_flags;
3996 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3997 while (ioa_cfg->in_reset_reload) {
3998 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3999 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4000 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4003 if (ioa_cfg->ucode_sglist) {
4004 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4005 dev_err(&ioa_cfg->pdev->dev,
4006 "Microcode download already in progress\n");
4010 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
4011 sglist->scatterlist, sglist->num_sg,
4014 if (!sglist->num_dma_sg) {
4015 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4016 dev_err(&ioa_cfg->pdev->dev,
4017 "Failed to map microcode download buffer!\n");
4021 ioa_cfg->ucode_sglist = sglist;
4022 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
4023 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4024 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4027 ioa_cfg->ucode_sglist = NULL;
4028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4033 * ipr_store_update_fw - Update the firmware on the adapter
4034 * @class_dev: device struct
4036 * @count: buffer size
4038 * This function will update the firmware on the adapter.
4041 * count on success / other on failure
4043 static ssize_t ipr_store_update_fw(struct device *dev,
4044 struct device_attribute *attr,
4045 const char *buf, size_t count)
4047 struct Scsi_Host *shost = class_to_shost(dev);
4048 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4049 struct ipr_ucode_image_header *image_hdr;
4050 const struct firmware *fw_entry;
4051 struct ipr_sglist *sglist;
4055 int result, dnld_size;
4057 if (!capable(CAP_SYS_ADMIN))
4060 snprintf(fname, sizeof(fname), "%s", buf);
4062 endline = strchr(fname, '\n');
4066 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4067 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4071 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4073 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4074 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4075 sglist = ipr_alloc_ucode_buffer(dnld_size);
4078 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4079 release_firmware(fw_entry);
4083 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4086 dev_err(&ioa_cfg->pdev->dev,
4087 "Microcode buffer copy to DMA buffer failed\n");
4091 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4093 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4098 ipr_free_ucode_buffer(sglist);
4099 release_firmware(fw_entry);
4103 static struct device_attribute ipr_update_fw_attr = {
4105 .name = "update_fw",
4108 .store = ipr_store_update_fw
4112 * ipr_show_fw_type - Show the adapter's firmware type.
4113 * @dev: class device struct
4117 * number of bytes printed to buffer
4119 static ssize_t ipr_show_fw_type(struct device *dev,
4120 struct device_attribute *attr, char *buf)
4122 struct Scsi_Host *shost = class_to_shost(dev);
4123 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4124 unsigned long lock_flags = 0;
4127 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4128 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4129 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4133 static struct device_attribute ipr_ioa_fw_type_attr = {
4138 .show = ipr_show_fw_type
4141 static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
4142 struct bin_attribute *bin_attr, char *buf,
4143 loff_t off, size_t count)
4145 struct device *cdev = container_of(kobj, struct device, kobj);
4146 struct Scsi_Host *shost = class_to_shost(cdev);
4147 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4148 struct ipr_hostrcb *hostrcb;
4149 unsigned long lock_flags = 0;
4152 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4153 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4154 struct ipr_hostrcb, queue);
4156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4159 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
4160 sizeof(hostrcb->hcam));
4161 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4165 static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
4166 struct bin_attribute *bin_attr, char *buf,
4167 loff_t off, size_t count)
4169 struct device *cdev = container_of(kobj, struct device, kobj);
4170 struct Scsi_Host *shost = class_to_shost(cdev);
4171 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4172 struct ipr_hostrcb *hostrcb;
4173 unsigned long lock_flags = 0;
4175 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4176 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4177 struct ipr_hostrcb, queue);
4179 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4183 /* Reclaim hostrcb before exit */
4184 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
4185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4189 static struct bin_attribute ipr_ioa_async_err_log = {
4191 .name = "async_err_log",
4192 .mode = S_IRUGO | S_IWUSR,
4195 .read = ipr_read_async_err_log,
4196 .write = ipr_next_async_err_log
4199 static struct device_attribute *ipr_ioa_attrs[] = {
4200 &ipr_fw_version_attr,
4201 &ipr_log_level_attr,
4202 &ipr_diagnostics_attr,
4203 &ipr_ioa_state_attr,
4204 &ipr_ioa_reset_attr,
4205 &ipr_update_fw_attr,
4206 &ipr_ioa_fw_type_attr,
4207 &ipr_iopoll_weight_attr,
4211 #ifdef CONFIG_SCSI_IPR_DUMP
4213 * ipr_read_dump - Dump the adapter
4214 * @filp: open sysfs file
4215 * @kobj: kobject struct
4216 * @bin_attr: bin_attribute struct
4219 * @count: buffer size
4222 * number of bytes printed to buffer
4224 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4225 struct bin_attribute *bin_attr,
4226 char *buf, loff_t off, size_t count)
4228 struct device *cdev = container_of(kobj, struct device, kobj);
4229 struct Scsi_Host *shost = class_to_shost(cdev);
4230 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4231 struct ipr_dump *dump;
4232 unsigned long lock_flags = 0;
4237 if (!capable(CAP_SYS_ADMIN))
4240 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4241 dump = ioa_cfg->dump;
4243 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4244 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4247 kref_get(&dump->kref);
4248 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4250 if (off > dump->driver_dump.hdr.len) {
4251 kref_put(&dump->kref, ipr_release_dump);
4255 if (off + count > dump->driver_dump.hdr.len) {
4256 count = dump->driver_dump.hdr.len - off;
4260 if (count && off < sizeof(dump->driver_dump)) {
4261 if (off + count > sizeof(dump->driver_dump))
4262 len = sizeof(dump->driver_dump) - off;
4265 src = (u8 *)&dump->driver_dump + off;
4266 memcpy(buf, src, len);
4272 off -= sizeof(dump->driver_dump);
4275 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4276 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4277 sizeof(struct ipr_sdt_entry));
4279 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4280 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4282 if (count && off < sdt_end) {
4283 if (off + count > sdt_end)
4284 len = sdt_end - off;
4287 src = (u8 *)&dump->ioa_dump + off;
4288 memcpy(buf, src, len);
4297 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4298 len = PAGE_ALIGN(off) - off;
4301 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4302 src += off & ~PAGE_MASK;
4303 memcpy(buf, src, len);
4309 kref_put(&dump->kref, ipr_release_dump);
4314 * ipr_alloc_dump - Prepare for adapter dump
4315 * @ioa_cfg: ioa config struct
4318 * 0 on success / other on failure
4320 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4322 struct ipr_dump *dump;
4324 unsigned long lock_flags = 0;
4326 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4329 ipr_err("Dump memory allocation failed\n");
4334 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4336 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4339 ipr_err("Dump memory allocation failed\n");
4344 dump->ioa_dump.ioa_data = ioa_data;
4346 kref_init(&dump->kref);
4347 dump->ioa_cfg = ioa_cfg;
4349 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4351 if (INACTIVE != ioa_cfg->sdt_state) {
4352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4353 vfree(dump->ioa_dump.ioa_data);
4358 ioa_cfg->dump = dump;
4359 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4360 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4361 ioa_cfg->dump_taken = 1;
4362 schedule_work(&ioa_cfg->work_q);
4364 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4370 * ipr_free_dump - Free adapter dump memory
4371 * @ioa_cfg: ioa config struct
4374 * 0 on success / other on failure
4376 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4378 struct ipr_dump *dump;
4379 unsigned long lock_flags = 0;
4383 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4384 dump = ioa_cfg->dump;
4386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4390 ioa_cfg->dump = NULL;
4391 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4393 kref_put(&dump->kref, ipr_release_dump);
4400 * ipr_write_dump - Setup dump state of adapter
4401 * @filp: open sysfs file
4402 * @kobj: kobject struct
4403 * @bin_attr: bin_attribute struct
4406 * @count: buffer size
4409 * number of bytes printed to buffer
4411 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4412 struct bin_attribute *bin_attr,
4413 char *buf, loff_t off, size_t count)
4415 struct device *cdev = container_of(kobj, struct device, kobj);
4416 struct Scsi_Host *shost = class_to_shost(cdev);
4417 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4420 if (!capable(CAP_SYS_ADMIN))
4424 rc = ipr_alloc_dump(ioa_cfg);
4425 else if (buf[0] == '0')
4426 rc = ipr_free_dump(ioa_cfg);
4436 static struct bin_attribute ipr_dump_attr = {
4439 .mode = S_IRUSR | S_IWUSR,
4442 .read = ipr_read_dump,
4443 .write = ipr_write_dump
4446 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4450 * ipr_change_queue_depth - Change the device's queue depth
4451 * @sdev: scsi device struct
4452 * @qdepth: depth to set
4453 * @reason: calling context
4458 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4460 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4461 struct ipr_resource_entry *res;
4462 unsigned long lock_flags = 0;
4464 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4465 res = (struct ipr_resource_entry *)sdev->hostdata;
4467 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4468 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4469 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4471 scsi_change_queue_depth(sdev, qdepth);
4472 return sdev->queue_depth;
4476 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4477 * @dev: device struct
4478 * @attr: device attribute structure
4482 * number of bytes printed to buffer
4484 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4486 struct scsi_device *sdev = to_scsi_device(dev);
4487 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4488 struct ipr_resource_entry *res;
4489 unsigned long lock_flags = 0;
4490 ssize_t len = -ENXIO;
4492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4493 res = (struct ipr_resource_entry *)sdev->hostdata;
4495 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4496 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4500 static struct device_attribute ipr_adapter_handle_attr = {
4502 .name = "adapter_handle",
4505 .show = ipr_show_adapter_handle
4509 * ipr_show_resource_path - Show the resource path or the resource address for
4511 * @dev: device struct
4512 * @attr: device attribute structure
4516 * number of bytes printed to buffer
4518 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4520 struct scsi_device *sdev = to_scsi_device(dev);
4521 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4522 struct ipr_resource_entry *res;
4523 unsigned long lock_flags = 0;
4524 ssize_t len = -ENXIO;
4525 char buffer[IPR_MAX_RES_PATH_LENGTH];
4527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4528 res = (struct ipr_resource_entry *)sdev->hostdata;
4529 if (res && ioa_cfg->sis64)
4530 len = snprintf(buf, PAGE_SIZE, "%s\n",
4531 __ipr_format_res_path(res->res_path, buffer,
4534 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4535 res->bus, res->target, res->lun);
4537 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4541 static struct device_attribute ipr_resource_path_attr = {
4543 .name = "resource_path",
4546 .show = ipr_show_resource_path
4550 * ipr_show_device_id - Show the device_id for this device.
4551 * @dev: device struct
4552 * @attr: device attribute structure
4556 * number of bytes printed to buffer
4558 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4560 struct scsi_device *sdev = to_scsi_device(dev);
4561 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4562 struct ipr_resource_entry *res;
4563 unsigned long lock_flags = 0;
4564 ssize_t len = -ENXIO;
4566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4567 res = (struct ipr_resource_entry *)sdev->hostdata;
4568 if (res && ioa_cfg->sis64)
4569 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4571 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4573 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4577 static struct device_attribute ipr_device_id_attr = {
4579 .name = "device_id",
4582 .show = ipr_show_device_id
4586 * ipr_show_resource_type - Show the resource type for this device.
4587 * @dev: device struct
4588 * @attr: device attribute structure
4592 * number of bytes printed to buffer
4594 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4596 struct scsi_device *sdev = to_scsi_device(dev);
4597 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4598 struct ipr_resource_entry *res;
4599 unsigned long lock_flags = 0;
4600 ssize_t len = -ENXIO;
4602 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4603 res = (struct ipr_resource_entry *)sdev->hostdata;
4606 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4608 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4612 static struct device_attribute ipr_resource_type_attr = {
4614 .name = "resource_type",
4617 .show = ipr_show_resource_type
4621 * ipr_show_raw_mode - Show the adapter's raw mode
4622 * @dev: class device struct
4626 * number of bytes printed to buffer
4628 static ssize_t ipr_show_raw_mode(struct device *dev,
4629 struct device_attribute *attr, char *buf)
4631 struct scsi_device *sdev = to_scsi_device(dev);
4632 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4633 struct ipr_resource_entry *res;
4634 unsigned long lock_flags = 0;
4637 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4638 res = (struct ipr_resource_entry *)sdev->hostdata;
4640 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4643 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4648 * ipr_store_raw_mode - Change the adapter's raw mode
4649 * @dev: class device struct
4653 * number of bytes printed to buffer
4655 static ssize_t ipr_store_raw_mode(struct device *dev,
4656 struct device_attribute *attr,
4657 const char *buf, size_t count)
4659 struct scsi_device *sdev = to_scsi_device(dev);
4660 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4661 struct ipr_resource_entry *res;
4662 unsigned long lock_flags = 0;
4665 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4666 res = (struct ipr_resource_entry *)sdev->hostdata;
4668 if (ipr_is_af_dasd_device(res)) {
4669 res->raw_mode = simple_strtoul(buf, NULL, 10);
4672 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4673 res->raw_mode ? "enabled" : "disabled");
4678 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4682 static struct device_attribute ipr_raw_mode_attr = {
4685 .mode = S_IRUGO | S_IWUSR,
4687 .show = ipr_show_raw_mode,
4688 .store = ipr_store_raw_mode
4691 static struct device_attribute *ipr_dev_attrs[] = {
4692 &ipr_adapter_handle_attr,
4693 &ipr_resource_path_attr,
4694 &ipr_device_id_attr,
4695 &ipr_resource_type_attr,
4701 * ipr_biosparam - Return the HSC mapping
4702 * @sdev: scsi device struct
4703 * @block_device: block device pointer
4704 * @capacity: capacity of the device
4705 * @parm: Array containing returned HSC values.
4707 * This function generates the HSC parms that fdisk uses.
4708 * We want to make sure we return something that places partitions
4709 * on 4k boundaries for best performance with the IOA.
4714 static int ipr_biosparam(struct scsi_device *sdev,
4715 struct block_device *block_device,
4716 sector_t capacity, int *parm)
4724 cylinders = capacity;
4725 sector_div(cylinders, (128 * 32));
4730 parm[2] = cylinders;
4736 * ipr_find_starget - Find target based on bus/target.
4737 * @starget: scsi target struct
4740 * resource entry pointer if found / NULL if not found
4742 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4744 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4745 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4746 struct ipr_resource_entry *res;
4748 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4749 if ((res->bus == starget->channel) &&
4750 (res->target == starget->id)) {
4758 static struct ata_port_info sata_port_info;
4761 * ipr_target_alloc - Prepare for commands to a SCSI target
4762 * @starget: scsi target struct
4764 * If the device is a SATA device, this function allocates an
4765 * ATA port with libata, else it does nothing.
4768 * 0 on success / non-0 on failure
4770 static int ipr_target_alloc(struct scsi_target *starget)
4772 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4773 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4774 struct ipr_sata_port *sata_port;
4775 struct ata_port *ap;
4776 struct ipr_resource_entry *res;
4777 unsigned long lock_flags;
4779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4780 res = ipr_find_starget(starget);
4781 starget->hostdata = NULL;
4783 if (res && ipr_is_gata(res)) {
4784 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4785 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4789 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4791 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4792 sata_port->ioa_cfg = ioa_cfg;
4794 sata_port->res = res;
4796 res->sata_port = sata_port;
4797 ap->private_data = sata_port;
4798 starget->hostdata = sata_port;
4804 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4810 * ipr_target_destroy - Destroy a SCSI target
4811 * @starget: scsi target struct
4813 * If the device was a SATA device, this function frees the libata
4814 * ATA port, else it does nothing.
4817 static void ipr_target_destroy(struct scsi_target *starget)
4819 struct ipr_sata_port *sata_port = starget->hostdata;
4820 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4821 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4823 if (ioa_cfg->sis64) {
4824 if (!ipr_find_starget(starget)) {
4825 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4826 clear_bit(starget->id, ioa_cfg->array_ids);
4827 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4828 clear_bit(starget->id, ioa_cfg->vset_ids);
4829 else if (starget->channel == 0)
4830 clear_bit(starget->id, ioa_cfg->target_ids);
4835 starget->hostdata = NULL;
4836 ata_sas_port_destroy(sata_port->ap);
4842 * ipr_find_sdev - Find device based on bus/target/lun.
4843 * @sdev: scsi device struct
4846 * resource entry pointer if found / NULL if not found
4848 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4850 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4851 struct ipr_resource_entry *res;
4853 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4854 if ((res->bus == sdev->channel) &&
4855 (res->target == sdev->id) &&
4856 (res->lun == sdev->lun))
4864 * ipr_slave_destroy - Unconfigure a SCSI device
4865 * @sdev: scsi device struct
4870 static void ipr_slave_destroy(struct scsi_device *sdev)
4872 struct ipr_resource_entry *res;
4873 struct ipr_ioa_cfg *ioa_cfg;
4874 unsigned long lock_flags = 0;
4876 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4878 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4879 res = (struct ipr_resource_entry *) sdev->hostdata;
4882 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4883 sdev->hostdata = NULL;
4885 res->sata_port = NULL;
4887 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4891 * ipr_slave_configure - Configure a SCSI device
4892 * @sdev: scsi device struct
4894 * This function configures the specified scsi device.
4899 static int ipr_slave_configure(struct scsi_device *sdev)
4901 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4902 struct ipr_resource_entry *res;
4903 struct ata_port *ap = NULL;
4904 unsigned long lock_flags = 0;
4905 char buffer[IPR_MAX_RES_PATH_LENGTH];
4907 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4908 res = sdev->hostdata;
4910 if (ipr_is_af_dasd_device(res))
4911 sdev->type = TYPE_RAID;
4912 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4913 sdev->scsi_level = 4;
4914 sdev->no_uld_attach = 1;
4916 if (ipr_is_vset_device(res)) {
4917 sdev->scsi_level = SCSI_SPC_3;
4918 sdev->no_report_opcodes = 1;
4919 blk_queue_rq_timeout(sdev->request_queue,
4920 IPR_VSET_RW_TIMEOUT);
4921 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4923 if (ipr_is_gata(res) && res->sata_port)
4924 ap = res->sata_port->ap;
4925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4928 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4929 ata_sas_slave_configure(sdev, ap);
4933 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4934 ipr_format_res_path(ioa_cfg,
4935 res->res_path, buffer, sizeof(buffer)));
4938 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4943 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4944 * @sdev: scsi device struct
4946 * This function initializes an ATA port so that future commands
4947 * sent through queuecommand will work.
4952 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4954 struct ipr_sata_port *sata_port = NULL;
4958 if (sdev->sdev_target)
4959 sata_port = sdev->sdev_target->hostdata;
4961 rc = ata_sas_port_init(sata_port->ap);
4963 rc = ata_sas_sync_probe(sata_port->ap);
4967 ipr_slave_destroy(sdev);
4974 * ipr_slave_alloc - Prepare for commands to a device.
4975 * @sdev: scsi device struct
4977 * This function saves a pointer to the resource entry
4978 * in the scsi device struct if the device exists. We
4979 * can then use this pointer in ipr_queuecommand when
4980 * handling new commands.
4983 * 0 on success / -ENXIO if device does not exist
4985 static int ipr_slave_alloc(struct scsi_device *sdev)
4987 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4988 struct ipr_resource_entry *res;
4989 unsigned long lock_flags;
4992 sdev->hostdata = NULL;
4994 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4996 res = ipr_find_sdev(sdev);
5001 sdev->hostdata = res;
5002 if (!ipr_is_naca_model(res))
5003 res->needs_sync_complete = 1;
5005 if (ipr_is_gata(res)) {
5006 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5007 return ipr_ata_slave_alloc(sdev);
5011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5017 * ipr_match_lun - Match function for specified LUN
5018 * @ipr_cmd: ipr command struct
5019 * @device: device to match (sdev)
5022 * 1 if command matches sdev / 0 if command does not match sdev
5024 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
5026 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
5032 * ipr_cmnd_is_free - Check if a command is free or not
5033 * @ipr_cmd ipr command struct
5038 static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd)
5040 struct ipr_cmnd *loop_cmd;
5042 list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) {
5043 if (loop_cmd == ipr_cmd)
5051 * ipr_match_res - Match function for specified resource entry
5052 * @ipr_cmd: ipr command struct
5053 * @resource: resource entry to match
5056 * 1 if command matches sdev / 0 if command does not match sdev
5058 static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource)
5060 struct ipr_resource_entry *res = resource;
5062 if (res && ipr_cmd->ioarcb.res_handle == res->res_handle)
5068 * ipr_wait_for_ops - Wait for matching commands to complete
5069 * @ipr_cmd: ipr command struct
5070 * @device: device to match (sdev)
5071 * @match: match function to use
5076 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
5077 int (*match)(struct ipr_cmnd *, void *))
5079 struct ipr_cmnd *ipr_cmd;
5081 unsigned long flags;
5082 struct ipr_hrr_queue *hrrq;
5083 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
5084 DECLARE_COMPLETION_ONSTACK(comp);
5090 for_each_hrrq(hrrq, ioa_cfg) {
5091 spin_lock_irqsave(hrrq->lock, flags);
5092 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5093 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5094 if (!ipr_cmnd_is_free(ipr_cmd)) {
5095 if (match(ipr_cmd, device)) {
5096 ipr_cmd->eh_comp = ∁
5101 spin_unlock_irqrestore(hrrq->lock, flags);
5105 timeout = wait_for_completion_timeout(&comp, timeout);
5110 for_each_hrrq(hrrq, ioa_cfg) {
5111 spin_lock_irqsave(hrrq->lock, flags);
5112 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5113 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5114 if (!ipr_cmnd_is_free(ipr_cmd)) {
5115 if (match(ipr_cmd, device)) {
5116 ipr_cmd->eh_comp = NULL;
5121 spin_unlock_irqrestore(hrrq->lock, flags);
5125 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
5127 return wait ? FAILED : SUCCESS;
5136 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
5138 struct ipr_ioa_cfg *ioa_cfg;
5139 unsigned long lock_flags = 0;
5143 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5144 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5146 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5147 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5148 dev_err(&ioa_cfg->pdev->dev,
5149 "Adapter being reset as a result of error recovery.\n");
5151 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5152 ioa_cfg->sdt_state = GET_DUMP;
5155 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5156 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5157 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5159 /* If we got hit with a host reset while we were already resetting
5160 the adapter for some reason, and the reset failed. */
5161 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5166 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5172 * ipr_device_reset - Reset the device
5173 * @ioa_cfg: ioa config struct
5174 * @res: resource entry struct
5176 * This function issues a device reset to the affected device.
5177 * If the device is a SCSI device, a LUN reset will be sent
5178 * to the device first. If that does not work, a target reset
5179 * will be sent. If the device is a SATA device, a PHY reset will
5183 * 0 on success / non-zero on failure
5185 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5186 struct ipr_resource_entry *res)
5188 struct ipr_cmnd *ipr_cmd;
5189 struct ipr_ioarcb *ioarcb;
5190 struct ipr_cmd_pkt *cmd_pkt;
5191 struct ipr_ioarcb_ata_regs *regs;
5195 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5196 ioarcb = &ipr_cmd->ioarcb;
5197 cmd_pkt = &ioarcb->cmd_pkt;
5199 if (ipr_cmd->ioa_cfg->sis64) {
5200 regs = &ipr_cmd->i.ata_ioadl.regs;
5201 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5203 regs = &ioarcb->u.add_data.u.regs;
5205 ioarcb->res_handle = res->res_handle;
5206 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5207 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5208 if (ipr_is_gata(res)) {
5209 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5210 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5211 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5214 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5215 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5216 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5217 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5218 if (ipr_cmd->ioa_cfg->sis64)
5219 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5220 sizeof(struct ipr_ioasa_gata));
5222 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5223 sizeof(struct ipr_ioasa_gata));
5227 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5231 * ipr_sata_reset - Reset the SATA port
5232 * @link: SATA link to reset
5233 * @classes: class of the attached device
5235 * This function issues a SATA phy reset to the affected ATA link.
5238 * 0 on success / non-zero on failure
5240 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5241 unsigned long deadline)
5243 struct ipr_sata_port *sata_port = link->ap->private_data;
5244 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5245 struct ipr_resource_entry *res;
5246 unsigned long lock_flags = 0;
5247 int rc = -ENXIO, ret;
5250 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5251 while (ioa_cfg->in_reset_reload) {
5252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5253 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5257 res = sata_port->res;
5259 rc = ipr_device_reset(ioa_cfg, res);
5260 *classes = res->ata_class;
5261 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5263 ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5264 if (ret != SUCCESS) {
5265 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5266 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5267 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5269 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5279 * ipr_eh_dev_reset - Reset the device
5280 * @scsi_cmd: scsi command struct
5282 * This function issues a device reset to the affected device.
5283 * A LUN reset will be sent to the device first. If that does
5284 * not work, a target reset will be sent.
5289 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5291 struct ipr_cmnd *ipr_cmd;
5292 struct ipr_ioa_cfg *ioa_cfg;
5293 struct ipr_resource_entry *res;
5294 struct ata_port *ap;
5296 struct ipr_hrr_queue *hrrq;
5299 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5300 res = scsi_cmd->device->hostdata;
5303 * If we are currently going through reset/reload, return failed. This will force the
5304 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5307 if (ioa_cfg->in_reset_reload)
5309 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5312 for_each_hrrq(hrrq, ioa_cfg) {
5313 spin_lock(&hrrq->_lock);
5314 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5315 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5317 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5320 if (ipr_cmnd_is_free(ipr_cmd))
5323 ipr_cmd->done = ipr_sata_eh_done;
5324 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5325 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5326 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5330 spin_unlock(&hrrq->_lock);
5332 res->resetting_device = 1;
5333 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5335 if (ipr_is_gata(res) && res->sata_port) {
5336 ap = res->sata_port->ap;
5337 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5338 ata_std_error_handler(ap);
5339 spin_lock_irq(scsi_cmd->device->host->host_lock);
5341 rc = ipr_device_reset(ioa_cfg, res);
5342 res->resetting_device = 0;
5343 res->reset_occurred = 1;
5346 return rc ? FAILED : SUCCESS;
5349 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5352 struct ipr_ioa_cfg *ioa_cfg;
5353 struct ipr_resource_entry *res;
5355 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5356 res = cmd->device->hostdata;
5361 spin_lock_irq(cmd->device->host->host_lock);
5362 rc = __ipr_eh_dev_reset(cmd);
5363 spin_unlock_irq(cmd->device->host->host_lock);
5365 if (rc == SUCCESS) {
5366 if (ipr_is_gata(res) && res->sata_port)
5367 rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5369 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5376 * ipr_bus_reset_done - Op done function for bus reset.
5377 * @ipr_cmd: ipr command struct
5379 * This function is the op done function for a bus reset
5384 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5387 struct ipr_resource_entry *res;
5390 if (!ioa_cfg->sis64)
5391 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5392 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5393 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5399 * If abort has not completed, indicate the reset has, else call the
5400 * abort's done function to wake the sleeping eh thread
5402 if (ipr_cmd->sibling->sibling)
5403 ipr_cmd->sibling->sibling = NULL;
5405 ipr_cmd->sibling->done(ipr_cmd->sibling);
5407 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5412 * ipr_abort_timeout - An abort task has timed out
5413 * @ipr_cmd: ipr command struct
5415 * This function handles when an abort task times out. If this
5416 * happens we issue a bus reset since we have resources tied
5417 * up that must be freed before returning to the midlayer.
5422 static void ipr_abort_timeout(struct timer_list *t)
5424 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
5425 struct ipr_cmnd *reset_cmd;
5426 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5427 struct ipr_cmd_pkt *cmd_pkt;
5428 unsigned long lock_flags = 0;
5431 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5432 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5437 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5438 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5439 ipr_cmd->sibling = reset_cmd;
5440 reset_cmd->sibling = ipr_cmd;
5441 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5442 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5443 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5444 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5445 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5447 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5453 * ipr_cancel_op - Cancel specified op
5454 * @scsi_cmd: scsi command struct
5456 * This function cancels specified op.
5461 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5463 struct ipr_cmnd *ipr_cmd;
5464 struct ipr_ioa_cfg *ioa_cfg;
5465 struct ipr_resource_entry *res;
5466 struct ipr_cmd_pkt *cmd_pkt;
5468 int i, op_found = 0;
5469 struct ipr_hrr_queue *hrrq;
5472 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5473 res = scsi_cmd->device->hostdata;
5475 /* If we are currently going through reset/reload, return failed.
5476 * This will force the mid-layer to call ipr_eh_host_reset,
5477 * which will then go to sleep and wait for the reset to complete
5479 if (ioa_cfg->in_reset_reload ||
5480 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5486 * If we are aborting a timed out op, chances are that the timeout was caused
5487 * by a still not detected EEH error. In such cases, reading a register will
5488 * trigger the EEH recovery infrastructure.
5490 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5492 if (!ipr_is_gscsi(res))
5495 for_each_hrrq(hrrq, ioa_cfg) {
5496 spin_lock(&hrrq->_lock);
5497 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5498 if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) {
5499 if (!ipr_cmnd_is_free(ioa_cfg->ipr_cmnd_list[i])) {
5505 spin_unlock(&hrrq->_lock);
5511 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5512 ipr_cmd->ioarcb.res_handle = res->res_handle;
5513 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5514 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5515 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5516 ipr_cmd->u.sdev = scsi_cmd->device;
5518 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5520 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5521 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5524 * If the abort task timed out and we sent a bus reset, we will get
5525 * one the following responses to the abort
5527 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5532 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5533 if (!ipr_is_naca_model(res))
5534 res->needs_sync_complete = 1;
5537 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5541 * ipr_eh_abort - Abort a single op
5542 * @scsi_cmd: scsi command struct
5545 * 0 if scan in progress / 1 if scan is complete
5547 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5549 unsigned long lock_flags;
5550 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5553 spin_lock_irqsave(shost->host_lock, lock_flags);
5554 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5556 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5558 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5563 * ipr_eh_host_reset - Reset the host adapter
5564 * @scsi_cmd: scsi command struct
5569 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5571 unsigned long flags;
5573 struct ipr_ioa_cfg *ioa_cfg;
5577 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5579 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5580 rc = ipr_cancel_op(scsi_cmd);
5581 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5584 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5590 * ipr_handle_other_interrupt - Handle "other" interrupts
5591 * @ioa_cfg: ioa config struct
5592 * @int_reg: interrupt register
5595 * IRQ_NONE / IRQ_HANDLED
5597 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5600 irqreturn_t rc = IRQ_HANDLED;
5603 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5604 int_reg &= ~int_mask_reg;
5606 /* If an interrupt on the adapter did not occur, ignore it.
5607 * Or in the case of SIS 64, check for a stage change interrupt.
5609 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5610 if (ioa_cfg->sis64) {
5611 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5612 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5613 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5615 /* clear stage change */
5616 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5617 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5618 list_del(&ioa_cfg->reset_cmd->queue);
5619 del_timer(&ioa_cfg->reset_cmd->timer);
5620 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5628 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5629 /* Mask the interrupt */
5630 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5631 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5633 list_del(&ioa_cfg->reset_cmd->queue);
5634 del_timer(&ioa_cfg->reset_cmd->timer);
5635 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5636 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5637 if (ioa_cfg->clear_isr) {
5638 if (ipr_debug && printk_ratelimit())
5639 dev_err(&ioa_cfg->pdev->dev,
5640 "Spurious interrupt detected. 0x%08X\n", int_reg);
5641 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5642 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5646 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5647 ioa_cfg->ioa_unit_checked = 1;
5648 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5649 dev_err(&ioa_cfg->pdev->dev,
5650 "No Host RRQ. 0x%08X\n", int_reg);
5652 dev_err(&ioa_cfg->pdev->dev,
5653 "Permanent IOA failure. 0x%08X\n", int_reg);
5655 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5656 ioa_cfg->sdt_state = GET_DUMP;
5658 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5659 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5666 * ipr_isr_eh - Interrupt service routine error handler
5667 * @ioa_cfg: ioa config struct
5668 * @msg: message to log
5673 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5675 ioa_cfg->errors_logged++;
5676 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5678 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5679 ioa_cfg->sdt_state = GET_DUMP;
5681 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5684 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5685 struct list_head *doneq)
5689 struct ipr_cmnd *ipr_cmd;
5690 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5693 /* If interrupts are disabled, ignore the interrupt */
5694 if (!hrr_queue->allow_interrupts)
5697 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5698 hrr_queue->toggle_bit) {
5700 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5701 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5702 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5704 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5705 cmd_index < hrr_queue->min_cmd_id)) {
5707 "Invalid response handle from IOA: ",
5712 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5713 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5715 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5717 list_move_tail(&ipr_cmd->queue, doneq);
5719 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5720 hrr_queue->hrrq_curr++;
5722 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5723 hrr_queue->toggle_bit ^= 1u;
5726 if (budget > 0 && num_hrrq >= budget)
5733 static int ipr_iopoll(struct irq_poll *iop, int budget)
5735 struct ipr_ioa_cfg *ioa_cfg;
5736 struct ipr_hrr_queue *hrrq;
5737 struct ipr_cmnd *ipr_cmd, *temp;
5738 unsigned long hrrq_flags;
5742 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5743 ioa_cfg = hrrq->ioa_cfg;
5745 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5746 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5748 if (completed_ops < budget)
5749 irq_poll_complete(iop);
5750 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5752 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5753 list_del(&ipr_cmd->queue);
5754 del_timer(&ipr_cmd->timer);
5755 ipr_cmd->fast_done(ipr_cmd);
5758 return completed_ops;
5762 * ipr_isr - Interrupt service routine
5764 * @devp: pointer to ioa config struct
5767 * IRQ_NONE / IRQ_HANDLED
5769 static irqreturn_t ipr_isr(int irq, void *devp)
5771 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5772 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5773 unsigned long hrrq_flags = 0;
5777 struct ipr_cmnd *ipr_cmd, *temp;
5778 irqreturn_t rc = IRQ_NONE;
5781 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5782 /* If interrupts are disabled, ignore the interrupt */
5783 if (!hrrq->allow_interrupts) {
5784 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5789 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5792 if (!ioa_cfg->clear_isr)
5795 /* Clear the PCI interrupt */
5798 writel(IPR_PCII_HRRQ_UPDATED,
5799 ioa_cfg->regs.clr_interrupt_reg32);
5800 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5801 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5802 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5804 } else if (rc == IRQ_NONE && irq_none == 0) {
5805 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5807 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5808 int_reg & IPR_PCII_HRRQ_UPDATED) {
5810 "Error clearing HRRQ: ", num_hrrq);
5817 if (unlikely(rc == IRQ_NONE))
5818 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5820 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5821 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5822 list_del(&ipr_cmd->queue);
5823 del_timer(&ipr_cmd->timer);
5824 ipr_cmd->fast_done(ipr_cmd);
5830 * ipr_isr_mhrrq - Interrupt service routine
5832 * @devp: pointer to ioa config struct
5835 * IRQ_NONE / IRQ_HANDLED
5837 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5839 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5840 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5841 unsigned long hrrq_flags = 0;
5842 struct ipr_cmnd *ipr_cmd, *temp;
5843 irqreturn_t rc = IRQ_NONE;
5846 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5848 /* If interrupts are disabled, ignore the interrupt */
5849 if (!hrrq->allow_interrupts) {
5850 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5854 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5855 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5857 irq_poll_sched(&hrrq->iopoll);
5858 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5862 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5865 if (ipr_process_hrrq(hrrq, -1, &doneq))
5869 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5871 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5872 list_del(&ipr_cmd->queue);
5873 del_timer(&ipr_cmd->timer);
5874 ipr_cmd->fast_done(ipr_cmd);
5880 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5881 * @ioa_cfg: ioa config struct
5882 * @ipr_cmd: ipr command struct
5885 * 0 on success / -1 on failure
5887 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5888 struct ipr_cmnd *ipr_cmd)
5891 struct scatterlist *sg;
5893 u32 ioadl_flags = 0;
5894 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5895 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5896 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5898 length = scsi_bufflen(scsi_cmd);
5902 nseg = scsi_dma_map(scsi_cmd);
5904 if (printk_ratelimit())
5905 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5909 ipr_cmd->dma_use_sg = nseg;
5911 ioarcb->data_transfer_length = cpu_to_be32(length);
5913 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5915 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5916 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5917 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5918 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5919 ioadl_flags = IPR_IOADL_FLAGS_READ;
5921 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5922 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5923 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5924 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5927 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5932 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5933 * @ioa_cfg: ioa config struct
5934 * @ipr_cmd: ipr command struct
5937 * 0 on success / -1 on failure
5939 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5940 struct ipr_cmnd *ipr_cmd)
5943 struct scatterlist *sg;
5945 u32 ioadl_flags = 0;
5946 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5947 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5948 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5950 length = scsi_bufflen(scsi_cmd);
5954 nseg = scsi_dma_map(scsi_cmd);
5956 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5960 ipr_cmd->dma_use_sg = nseg;
5962 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5963 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5964 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5965 ioarcb->data_transfer_length = cpu_to_be32(length);
5967 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5968 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5969 ioadl_flags = IPR_IOADL_FLAGS_READ;
5970 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5971 ioarcb->read_ioadl_len =
5972 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5975 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5976 ioadl = ioarcb->u.add_data.u.ioadl;
5977 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5978 offsetof(struct ipr_ioarcb, u.add_data));
5979 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5982 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5983 ioadl[i].flags_and_data_len =
5984 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5985 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5988 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5993 * __ipr_erp_done - Process completion of ERP for a device
5994 * @ipr_cmd: ipr command struct
5996 * This function copies the sense buffer into the scsi_cmd
5997 * struct and pushes the scsi_done function.
6002 static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6004 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6005 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6006 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6008 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6009 scsi_cmd->result |= (DID_ERROR << 16);
6010 scmd_printk(KERN_ERR, scsi_cmd,
6011 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
6013 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
6014 SCSI_SENSE_BUFFERSIZE);
6018 if (!ipr_is_naca_model(res))
6019 res->needs_sync_complete = 1;
6022 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6023 scsi_cmd->scsi_done(scsi_cmd);
6024 if (ipr_cmd->eh_comp)
6025 complete(ipr_cmd->eh_comp);
6026 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6030 * ipr_erp_done - Process completion of ERP for a device
6031 * @ipr_cmd: ipr command struct
6033 * This function copies the sense buffer into the scsi_cmd
6034 * struct and pushes the scsi_done function.
6039 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6041 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6042 unsigned long hrrq_flags;
6044 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6045 __ipr_erp_done(ipr_cmd);
6046 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6050 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
6051 * @ipr_cmd: ipr command struct
6056 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
6058 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6059 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6060 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6062 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
6063 ioarcb->data_transfer_length = 0;
6064 ioarcb->read_data_transfer_length = 0;
6065 ioarcb->ioadl_len = 0;
6066 ioarcb->read_ioadl_len = 0;
6067 ioasa->hdr.ioasc = 0;
6068 ioasa->hdr.residual_data_len = 0;
6070 if (ipr_cmd->ioa_cfg->sis64)
6071 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6072 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
6074 ioarcb->write_ioadl_addr =
6075 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
6076 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6081 * __ipr_erp_request_sense - Send request sense to a device
6082 * @ipr_cmd: ipr command struct
6084 * This function sends a request sense to a device as a result
6085 * of a check condition.
6090 static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6092 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6093 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6095 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6096 __ipr_erp_done(ipr_cmd);
6100 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6102 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
6103 cmd_pkt->cdb[0] = REQUEST_SENSE;
6104 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
6105 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
6106 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6107 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
6109 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
6110 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
6112 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
6113 IPR_REQUEST_SENSE_TIMEOUT * 2);
6117 * ipr_erp_request_sense - Send request sense to a device
6118 * @ipr_cmd: ipr command struct
6120 * This function sends a request sense to a device as a result
6121 * of a check condition.
6126 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6128 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6129 unsigned long hrrq_flags;
6131 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6132 __ipr_erp_request_sense(ipr_cmd);
6133 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6137 * ipr_erp_cancel_all - Send cancel all to a device
6138 * @ipr_cmd: ipr command struct
6140 * This function sends a cancel all to a device to clear the
6141 * queue. If we are running TCQ on the device, QERR is set to 1,
6142 * which means all outstanding ops have been dropped on the floor.
6143 * Cancel all will return them to us.
6148 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
6150 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6151 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6152 struct ipr_cmd_pkt *cmd_pkt;
6156 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6158 if (!scsi_cmd->device->simple_tags) {
6159 __ipr_erp_request_sense(ipr_cmd);
6163 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6164 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
6165 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
6167 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
6168 IPR_CANCEL_ALL_TIMEOUT);
6172 * ipr_dump_ioasa - Dump contents of IOASA
6173 * @ioa_cfg: ioa config struct
6174 * @ipr_cmd: ipr command struct
6175 * @res: resource entry struct
6177 * This function is invoked by the interrupt handler when ops
6178 * fail. It will log the IOASA if appropriate. Only called
6184 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
6185 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
6189 u32 ioasc, fd_ioasc;
6190 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6191 __be32 *ioasa_data = (__be32 *)ioasa;
6194 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
6195 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
6200 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6203 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6204 error_index = ipr_get_error(fd_ioasc);
6206 error_index = ipr_get_error(ioasc);
6208 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6209 /* Don't log an error if the IOA already logged one */
6210 if (ioasa->hdr.ilid != 0)
6213 if (!ipr_is_gscsi(res))
6216 if (ipr_error_table[error_index].log_ioasa == 0)
6220 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6222 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6223 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6224 data_len = sizeof(struct ipr_ioasa64);
6225 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6226 data_len = sizeof(struct ipr_ioasa);
6228 ipr_err("IOASA Dump:\n");
6230 for (i = 0; i < data_len / 4; i += 4) {
6231 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6232 be32_to_cpu(ioasa_data[i]),
6233 be32_to_cpu(ioasa_data[i+1]),
6234 be32_to_cpu(ioasa_data[i+2]),
6235 be32_to_cpu(ioasa_data[i+3]));
6240 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6242 * @sense_buf: sense data buffer
6247 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6250 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6251 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6252 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6253 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6255 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6257 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6260 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6262 if (ipr_is_vset_device(res) &&
6263 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6264 ioasa->u.vset.failing_lba_hi != 0) {
6265 sense_buf[0] = 0x72;
6266 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6267 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6268 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6272 sense_buf[9] = 0x0A;
6273 sense_buf[10] = 0x80;
6275 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6277 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6278 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6279 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6280 sense_buf[15] = failing_lba & 0x000000ff;
6282 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6284 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6285 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6286 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6287 sense_buf[19] = failing_lba & 0x000000ff;
6289 sense_buf[0] = 0x70;
6290 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6291 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6292 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6294 /* Illegal request */
6295 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6296 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6297 sense_buf[7] = 10; /* additional length */
6299 /* IOARCB was in error */
6300 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6301 sense_buf[15] = 0xC0;
6302 else /* Parameter data was invalid */
6303 sense_buf[15] = 0x80;
6306 ((IPR_FIELD_POINTER_MASK &
6307 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6309 (IPR_FIELD_POINTER_MASK &
6310 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6312 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6313 if (ipr_is_vset_device(res))
6314 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6316 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6318 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6319 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6320 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6321 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6322 sense_buf[6] = failing_lba & 0x000000ff;
6325 sense_buf[7] = 6; /* additional length */
6331 * ipr_get_autosense - Copy autosense data to sense buffer
6332 * @ipr_cmd: ipr command struct
6334 * This function copies the autosense buffer to the buffer
6335 * in the scsi_cmd, if there is autosense available.
6338 * 1 if autosense was available / 0 if not
6340 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6342 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6343 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6345 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6348 if (ipr_cmd->ioa_cfg->sis64)
6349 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6350 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6351 SCSI_SENSE_BUFFERSIZE));
6353 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6354 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6355 SCSI_SENSE_BUFFERSIZE));
6360 * ipr_erp_start - Process an error response for a SCSI op
6361 * @ioa_cfg: ioa config struct
6362 * @ipr_cmd: ipr command struct
6364 * This function determines whether or not to initiate ERP
6365 * on the affected device.
6370 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6371 struct ipr_cmnd *ipr_cmd)
6373 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6374 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6375 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6376 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6379 __ipr_scsi_eh_done(ipr_cmd);
6383 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6384 ipr_gen_sense(ipr_cmd);
6386 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6388 switch (masked_ioasc) {
6389 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6390 if (ipr_is_naca_model(res))
6391 scsi_cmd->result |= (DID_ABORT << 16);
6393 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6395 case IPR_IOASC_IR_RESOURCE_HANDLE:
6396 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6397 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6399 case IPR_IOASC_HW_SEL_TIMEOUT:
6400 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6401 if (!ipr_is_naca_model(res))
6402 res->needs_sync_complete = 1;
6404 case IPR_IOASC_SYNC_REQUIRED:
6406 res->needs_sync_complete = 1;
6407 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6409 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6410 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6412 * exception: do not set DID_PASSTHROUGH on CHECK CONDITION
6413 * so SCSI mid-layer and upper layers handle it accordingly.
6415 if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION)
6416 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6418 case IPR_IOASC_BUS_WAS_RESET:
6419 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6421 * Report the bus reset and ask for a retry. The device
6422 * will give CC/UA the next command.
6424 if (!res->resetting_device)
6425 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6426 scsi_cmd->result |= (DID_ERROR << 16);
6427 if (!ipr_is_naca_model(res))
6428 res->needs_sync_complete = 1;
6430 case IPR_IOASC_HW_DEV_BUS_STATUS:
6431 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6432 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6433 if (!ipr_get_autosense(ipr_cmd)) {
6434 if (!ipr_is_naca_model(res)) {
6435 ipr_erp_cancel_all(ipr_cmd);
6440 if (!ipr_is_naca_model(res))
6441 res->needs_sync_complete = 1;
6443 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6445 case IPR_IOASC_IR_NON_OPTIMIZED:
6446 if (res->raw_mode) {
6448 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6450 scsi_cmd->result |= (DID_ERROR << 16);
6453 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6454 scsi_cmd->result |= (DID_ERROR << 16);
6455 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6456 res->needs_sync_complete = 1;
6460 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6461 scsi_cmd->scsi_done(scsi_cmd);
6462 if (ipr_cmd->eh_comp)
6463 complete(ipr_cmd->eh_comp);
6464 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6468 * ipr_scsi_done - mid-layer done function
6469 * @ipr_cmd: ipr command struct
6471 * This function is invoked by the interrupt handler for
6472 * ops generated by the SCSI mid-layer
6477 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6479 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6480 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6481 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6482 unsigned long lock_flags;
6484 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6486 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6487 scsi_dma_unmap(scsi_cmd);
6489 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6490 scsi_cmd->scsi_done(scsi_cmd);
6491 if (ipr_cmd->eh_comp)
6492 complete(ipr_cmd->eh_comp);
6493 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6494 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6496 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6497 spin_lock(&ipr_cmd->hrrq->_lock);
6498 ipr_erp_start(ioa_cfg, ipr_cmd);
6499 spin_unlock(&ipr_cmd->hrrq->_lock);
6500 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6505 * ipr_queuecommand - Queue a mid-layer request
6506 * @shost: scsi host struct
6507 * @scsi_cmd: scsi command struct
6509 * This function queues a request generated by the mid-layer.
6513 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6514 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6516 static int ipr_queuecommand(struct Scsi_Host *shost,
6517 struct scsi_cmnd *scsi_cmd)
6519 struct ipr_ioa_cfg *ioa_cfg;
6520 struct ipr_resource_entry *res;
6521 struct ipr_ioarcb *ioarcb;
6522 struct ipr_cmnd *ipr_cmd;
6523 unsigned long hrrq_flags, lock_flags;
6525 struct ipr_hrr_queue *hrrq;
6528 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6530 scsi_cmd->result = (DID_OK << 16);
6531 res = scsi_cmd->device->hostdata;
6533 if (ipr_is_gata(res) && res->sata_port) {
6534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6535 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6536 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6540 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6541 hrrq = &ioa_cfg->hrrq[hrrq_id];
6543 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6545 * We are currently blocking all devices due to a host reset
6546 * We have told the host to stop giving us new requests, but
6547 * ERP ops don't count. FIXME
6549 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6550 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6551 return SCSI_MLQUEUE_HOST_BUSY;
6555 * FIXME - Create scsi_set_host_offline interface
6556 * and the ioa_is_dead check can be removed
6558 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6559 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6563 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6564 if (ipr_cmd == NULL) {
6565 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6566 return SCSI_MLQUEUE_HOST_BUSY;
6568 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6570 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6571 ioarcb = &ipr_cmd->ioarcb;
6573 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6574 ipr_cmd->scsi_cmd = scsi_cmd;
6575 ipr_cmd->done = ipr_scsi_eh_done;
6577 if (ipr_is_gscsi(res)) {
6578 if (scsi_cmd->underflow == 0)
6579 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6581 if (res->reset_occurred) {
6582 res->reset_occurred = 0;
6583 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6587 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6588 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6590 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6591 if (scsi_cmd->flags & SCMD_TAGGED)
6592 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6594 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6597 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6598 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6599 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6601 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6602 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6604 if (scsi_cmd->underflow == 0)
6605 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6609 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6611 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6613 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6614 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6615 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6616 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6618 scsi_dma_unmap(scsi_cmd);
6619 return SCSI_MLQUEUE_HOST_BUSY;
6622 if (unlikely(hrrq->ioa_is_dead)) {
6623 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6624 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6625 scsi_dma_unmap(scsi_cmd);
6629 ioarcb->res_handle = res->res_handle;
6630 if (res->needs_sync_complete) {
6631 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6632 res->needs_sync_complete = 0;
6634 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6635 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6636 ipr_send_command(ipr_cmd);
6637 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6641 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6642 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6643 scsi_cmd->result = (DID_NO_CONNECT << 16);
6644 scsi_cmd->scsi_done(scsi_cmd);
6645 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6650 * ipr_ioctl - IOCTL handler
6651 * @sdev: scsi device struct
6656 * 0 on success / other on failure
6658 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6660 struct ipr_resource_entry *res;
6662 res = (struct ipr_resource_entry *)sdev->hostdata;
6663 if (res && ipr_is_gata(res)) {
6664 if (cmd == HDIO_GET_IDENTITY)
6666 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6673 * ipr_info - Get information about the card/driver
6674 * @scsi_host: scsi host struct
6677 * pointer to buffer with description string
6679 static const char *ipr_ioa_info(struct Scsi_Host *host)
6681 static char buffer[512];
6682 struct ipr_ioa_cfg *ioa_cfg;
6683 unsigned long lock_flags = 0;
6685 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6687 spin_lock_irqsave(host->host_lock, lock_flags);
6688 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6689 spin_unlock_irqrestore(host->host_lock, lock_flags);
6694 static struct scsi_host_template driver_template = {
6695 .module = THIS_MODULE,
6697 .info = ipr_ioa_info,
6699 .queuecommand = ipr_queuecommand,
6700 .eh_abort_handler = ipr_eh_abort,
6701 .eh_device_reset_handler = ipr_eh_dev_reset,
6702 .eh_host_reset_handler = ipr_eh_host_reset,
6703 .slave_alloc = ipr_slave_alloc,
6704 .slave_configure = ipr_slave_configure,
6705 .slave_destroy = ipr_slave_destroy,
6706 .scan_finished = ipr_scan_finished,
6707 .target_alloc = ipr_target_alloc,
6708 .target_destroy = ipr_target_destroy,
6709 .change_queue_depth = ipr_change_queue_depth,
6710 .bios_param = ipr_biosparam,
6711 .can_queue = IPR_MAX_COMMANDS,
6713 .sg_tablesize = IPR_MAX_SGLIST,
6714 .max_sectors = IPR_IOA_MAX_SECTORS,
6715 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6716 .use_clustering = ENABLE_CLUSTERING,
6717 .shost_attrs = ipr_ioa_attrs,
6718 .sdev_attrs = ipr_dev_attrs,
6719 .proc_name = IPR_NAME,
6723 * ipr_ata_phy_reset - libata phy_reset handler
6724 * @ap: ata port to reset
6727 static void ipr_ata_phy_reset(struct ata_port *ap)
6729 unsigned long flags;
6730 struct ipr_sata_port *sata_port = ap->private_data;
6731 struct ipr_resource_entry *res = sata_port->res;
6732 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6736 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6737 while (ioa_cfg->in_reset_reload) {
6738 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6739 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6740 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6743 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6746 rc = ipr_device_reset(ioa_cfg, res);
6749 ap->link.device[0].class = ATA_DEV_NONE;
6753 ap->link.device[0].class = res->ata_class;
6754 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6755 ap->link.device[0].class = ATA_DEV_NONE;
6758 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6763 * ipr_ata_post_internal - Cleanup after an internal command
6764 * @qc: ATA queued command
6769 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6771 struct ipr_sata_port *sata_port = qc->ap->private_data;
6772 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6773 struct ipr_cmnd *ipr_cmd;
6774 struct ipr_hrr_queue *hrrq;
6775 unsigned long flags;
6777 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6778 while (ioa_cfg->in_reset_reload) {
6779 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6780 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6781 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6784 for_each_hrrq(hrrq, ioa_cfg) {
6785 spin_lock(&hrrq->_lock);
6786 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6787 if (ipr_cmd->qc == qc) {
6788 ipr_device_reset(ioa_cfg, sata_port->res);
6792 spin_unlock(&hrrq->_lock);
6794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6798 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6799 * @regs: destination
6800 * @tf: source ATA taskfile
6805 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6806 struct ata_taskfile *tf)
6808 regs->feature = tf->feature;
6809 regs->nsect = tf->nsect;
6810 regs->lbal = tf->lbal;
6811 regs->lbam = tf->lbam;
6812 regs->lbah = tf->lbah;
6813 regs->device = tf->device;
6814 regs->command = tf->command;
6815 regs->hob_feature = tf->hob_feature;
6816 regs->hob_nsect = tf->hob_nsect;
6817 regs->hob_lbal = tf->hob_lbal;
6818 regs->hob_lbam = tf->hob_lbam;
6819 regs->hob_lbah = tf->hob_lbah;
6820 regs->ctl = tf->ctl;
6824 * ipr_sata_done - done function for SATA commands
6825 * @ipr_cmd: ipr command struct
6827 * This function is invoked by the interrupt handler for
6828 * ops generated by the SCSI mid-layer to SATA devices
6833 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6836 struct ata_queued_cmd *qc = ipr_cmd->qc;
6837 struct ipr_sata_port *sata_port = qc->ap->private_data;
6838 struct ipr_resource_entry *res = sata_port->res;
6839 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6841 spin_lock(&ipr_cmd->hrrq->_lock);
6842 if (ipr_cmd->ioa_cfg->sis64)
6843 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6844 sizeof(struct ipr_ioasa_gata));
6846 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6847 sizeof(struct ipr_ioasa_gata));
6848 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6850 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6851 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6853 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6854 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6856 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6857 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6858 spin_unlock(&ipr_cmd->hrrq->_lock);
6859 ata_qc_complete(qc);
6863 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6864 * @ipr_cmd: ipr command struct
6865 * @qc: ATA queued command
6868 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6869 struct ata_queued_cmd *qc)
6871 u32 ioadl_flags = 0;
6872 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6873 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6874 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6875 int len = qc->nbytes;
6876 struct scatterlist *sg;
6878 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6883 if (qc->dma_dir == DMA_TO_DEVICE) {
6884 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6886 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6887 ioadl_flags = IPR_IOADL_FLAGS_READ;
6889 ioarcb->data_transfer_length = cpu_to_be32(len);
6891 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6892 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6893 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6895 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6896 ioadl64->flags = cpu_to_be32(ioadl_flags);
6897 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6898 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6900 last_ioadl64 = ioadl64;
6904 if (likely(last_ioadl64))
6905 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6909 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6910 * @ipr_cmd: ipr command struct
6911 * @qc: ATA queued command
6914 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6915 struct ata_queued_cmd *qc)
6917 u32 ioadl_flags = 0;
6918 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6919 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6920 struct ipr_ioadl_desc *last_ioadl = NULL;
6921 int len = qc->nbytes;
6922 struct scatterlist *sg;
6928 if (qc->dma_dir == DMA_TO_DEVICE) {
6929 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6930 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6931 ioarcb->data_transfer_length = cpu_to_be32(len);
6933 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6934 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6935 ioadl_flags = IPR_IOADL_FLAGS_READ;
6936 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6937 ioarcb->read_ioadl_len =
6938 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6941 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6942 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6943 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6949 if (likely(last_ioadl))
6950 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6954 * ipr_qc_defer - Get a free ipr_cmd
6955 * @qc: queued command
6960 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6962 struct ata_port *ap = qc->ap;
6963 struct ipr_sata_port *sata_port = ap->private_data;
6964 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6965 struct ipr_cmnd *ipr_cmd;
6966 struct ipr_hrr_queue *hrrq;
6969 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6970 hrrq = &ioa_cfg->hrrq[hrrq_id];
6972 qc->lldd_task = NULL;
6973 spin_lock(&hrrq->_lock);
6974 if (unlikely(hrrq->ioa_is_dead)) {
6975 spin_unlock(&hrrq->_lock);
6979 if (unlikely(!hrrq->allow_cmds)) {
6980 spin_unlock(&hrrq->_lock);
6981 return ATA_DEFER_LINK;
6984 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6985 if (ipr_cmd == NULL) {
6986 spin_unlock(&hrrq->_lock);
6987 return ATA_DEFER_LINK;
6990 qc->lldd_task = ipr_cmd;
6991 spin_unlock(&hrrq->_lock);
6996 * ipr_qc_issue - Issue a SATA qc to a device
6997 * @qc: queued command
7002 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
7004 struct ata_port *ap = qc->ap;
7005 struct ipr_sata_port *sata_port = ap->private_data;
7006 struct ipr_resource_entry *res = sata_port->res;
7007 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7008 struct ipr_cmnd *ipr_cmd;
7009 struct ipr_ioarcb *ioarcb;
7010 struct ipr_ioarcb_ata_regs *regs;
7012 if (qc->lldd_task == NULL)
7015 ipr_cmd = qc->lldd_task;
7016 if (ipr_cmd == NULL)
7017 return AC_ERR_SYSTEM;
7019 qc->lldd_task = NULL;
7020 spin_lock(&ipr_cmd->hrrq->_lock);
7021 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
7022 ipr_cmd->hrrq->ioa_is_dead)) {
7023 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7024 spin_unlock(&ipr_cmd->hrrq->_lock);
7025 return AC_ERR_SYSTEM;
7028 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
7029 ioarcb = &ipr_cmd->ioarcb;
7031 if (ioa_cfg->sis64) {
7032 regs = &ipr_cmd->i.ata_ioadl.regs;
7033 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
7035 regs = &ioarcb->u.add_data.u.regs;
7037 memset(regs, 0, sizeof(*regs));
7038 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
7040 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
7042 ipr_cmd->done = ipr_sata_done;
7043 ipr_cmd->ioarcb.res_handle = res->res_handle;
7044 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
7045 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
7046 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
7047 ipr_cmd->dma_use_sg = qc->n_elem;
7050 ipr_build_ata_ioadl64(ipr_cmd, qc);
7052 ipr_build_ata_ioadl(ipr_cmd, qc);
7054 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
7055 ipr_copy_sata_tf(regs, &qc->tf);
7056 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
7057 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
7059 switch (qc->tf.protocol) {
7060 case ATA_PROT_NODATA:
7065 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7068 case ATAPI_PROT_PIO:
7069 case ATAPI_PROT_NODATA:
7070 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7073 case ATAPI_PROT_DMA:
7074 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7075 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7080 spin_unlock(&ipr_cmd->hrrq->_lock);
7081 return AC_ERR_INVALID;
7084 ipr_send_command(ipr_cmd);
7085 spin_unlock(&ipr_cmd->hrrq->_lock);
7091 * ipr_qc_fill_rtf - Read result TF
7092 * @qc: ATA queued command
7097 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
7099 struct ipr_sata_port *sata_port = qc->ap->private_data;
7100 struct ipr_ioasa_gata *g = &sata_port->ioasa;
7101 struct ata_taskfile *tf = &qc->result_tf;
7103 tf->feature = g->error;
7104 tf->nsect = g->nsect;
7108 tf->device = g->device;
7109 tf->command = g->status;
7110 tf->hob_nsect = g->hob_nsect;
7111 tf->hob_lbal = g->hob_lbal;
7112 tf->hob_lbam = g->hob_lbam;
7113 tf->hob_lbah = g->hob_lbah;
7118 static struct ata_port_operations ipr_sata_ops = {
7119 .phy_reset = ipr_ata_phy_reset,
7120 .hardreset = ipr_sata_reset,
7121 .post_internal_cmd = ipr_ata_post_internal,
7122 .qc_prep = ata_noop_qc_prep,
7123 .qc_defer = ipr_qc_defer,
7124 .qc_issue = ipr_qc_issue,
7125 .qc_fill_rtf = ipr_qc_fill_rtf,
7126 .port_start = ata_sas_port_start,
7127 .port_stop = ata_sas_port_stop
7130 static struct ata_port_info sata_port_info = {
7131 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
7133 .pio_mask = ATA_PIO4_ONLY,
7134 .mwdma_mask = ATA_MWDMA2,
7135 .udma_mask = ATA_UDMA6,
7136 .port_ops = &ipr_sata_ops
7139 #ifdef CONFIG_PPC_PSERIES
7140 static const u16 ipr_blocked_processors[] = {
7152 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
7153 * @ioa_cfg: ioa cfg struct
7155 * Adapters that use Gemstone revision < 3.1 do not work reliably on
7156 * certain pSeries hardware. This function determines if the given
7157 * adapter is in one of these confgurations or not.
7160 * 1 if adapter is not supported / 0 if adapter is supported
7162 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
7166 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
7167 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
7168 if (pvr_version_is(ipr_blocked_processors[i]))
7175 #define ipr_invalid_adapter(ioa_cfg) 0
7179 * ipr_ioa_bringdown_done - IOA bring down completion.
7180 * @ipr_cmd: ipr command struct
7182 * This function processes the completion of an adapter bring down.
7183 * It wakes any reset sleepers.
7188 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
7190 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7194 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
7196 ioa_cfg->scsi_unblock = 1;
7197 schedule_work(&ioa_cfg->work_q);
7200 ioa_cfg->in_reset_reload = 0;
7201 ioa_cfg->reset_retries = 0;
7202 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7203 spin_lock(&ioa_cfg->hrrq[i]._lock);
7204 ioa_cfg->hrrq[i].ioa_is_dead = 1;
7205 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7209 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7210 wake_up_all(&ioa_cfg->reset_wait_q);
7213 return IPR_RC_JOB_RETURN;
7217 * ipr_ioa_reset_done - IOA reset completion.
7218 * @ipr_cmd: ipr command struct
7220 * This function processes the completion of an adapter reset.
7221 * It schedules any necessary mid-layer add/removes and
7222 * wakes any reset sleepers.
7227 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7229 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7230 struct ipr_resource_entry *res;
7234 ioa_cfg->in_reset_reload = 0;
7235 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7236 spin_lock(&ioa_cfg->hrrq[j]._lock);
7237 ioa_cfg->hrrq[j].allow_cmds = 1;
7238 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7241 ioa_cfg->reset_cmd = NULL;
7242 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7244 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7245 if (res->add_to_ml || res->del_from_ml) {
7250 schedule_work(&ioa_cfg->work_q);
7252 for (j = 0; j < IPR_NUM_HCAMS; j++) {
7253 list_del_init(&ioa_cfg->hostrcb[j]->queue);
7254 if (j < IPR_NUM_LOG_HCAMS)
7255 ipr_send_hcam(ioa_cfg,
7256 IPR_HCAM_CDB_OP_CODE_LOG_DATA,
7257 ioa_cfg->hostrcb[j]);
7259 ipr_send_hcam(ioa_cfg,
7260 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
7261 ioa_cfg->hostrcb[j]);
7264 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7265 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7267 ioa_cfg->reset_retries = 0;
7268 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7269 wake_up_all(&ioa_cfg->reset_wait_q);
7271 ioa_cfg->scsi_unblock = 1;
7272 schedule_work(&ioa_cfg->work_q);
7274 return IPR_RC_JOB_RETURN;
7278 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7279 * @supported_dev: supported device struct
7280 * @vpids: vendor product id struct
7285 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7286 struct ipr_std_inq_vpids *vpids)
7288 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7289 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7290 supported_dev->num_records = 1;
7291 supported_dev->data_length =
7292 cpu_to_be16(sizeof(struct ipr_supported_device));
7293 supported_dev->reserved = 0;
7297 * ipr_set_supported_devs - Send Set Supported Devices for a device
7298 * @ipr_cmd: ipr command struct
7300 * This function sends a Set Supported Devices to the adapter
7303 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7305 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7307 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7308 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7309 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7310 struct ipr_resource_entry *res = ipr_cmd->u.res;
7312 ipr_cmd->job_step = ipr_ioa_reset_done;
7314 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7315 if (!ipr_is_scsi_disk(res))
7318 ipr_cmd->u.res = res;
7319 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7321 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7322 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7323 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7325 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7326 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7327 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7328 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7330 ipr_init_ioadl(ipr_cmd,
7331 ioa_cfg->vpd_cbs_dma +
7332 offsetof(struct ipr_misc_cbs, supp_dev),
7333 sizeof(struct ipr_supported_device),
7334 IPR_IOADL_FLAGS_WRITE_LAST);
7336 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7337 IPR_SET_SUP_DEVICE_TIMEOUT);
7339 if (!ioa_cfg->sis64)
7340 ipr_cmd->job_step = ipr_set_supported_devs;
7342 return IPR_RC_JOB_RETURN;
7346 return IPR_RC_JOB_CONTINUE;
7350 * ipr_get_mode_page - Locate specified mode page
7351 * @mode_pages: mode page buffer
7352 * @page_code: page code to find
7353 * @len: minimum required length for mode page
7356 * pointer to mode page / NULL on failure
7358 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7359 u32 page_code, u32 len)
7361 struct ipr_mode_page_hdr *mode_hdr;
7365 if (!mode_pages || (mode_pages->hdr.length == 0))
7368 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7369 mode_hdr = (struct ipr_mode_page_hdr *)
7370 (mode_pages->data + mode_pages->hdr.block_desc_len);
7373 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7374 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7378 page_length = (sizeof(struct ipr_mode_page_hdr) +
7379 mode_hdr->page_length);
7380 length -= page_length;
7381 mode_hdr = (struct ipr_mode_page_hdr *)
7382 ((unsigned long)mode_hdr + page_length);
7389 * ipr_check_term_power - Check for term power errors
7390 * @ioa_cfg: ioa config struct
7391 * @mode_pages: IOAFP mode pages buffer
7393 * Check the IOAFP's mode page 28 for term power errors
7398 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7399 struct ipr_mode_pages *mode_pages)
7403 struct ipr_dev_bus_entry *bus;
7404 struct ipr_mode_page28 *mode_page;
7406 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7407 sizeof(struct ipr_mode_page28));
7409 entry_length = mode_page->entry_length;
7411 bus = mode_page->bus;
7413 for (i = 0; i < mode_page->num_entries; i++) {
7414 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7415 dev_err(&ioa_cfg->pdev->dev,
7416 "Term power is absent on scsi bus %d\n",
7420 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7425 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7426 * @ioa_cfg: ioa config struct
7428 * Looks through the config table checking for SES devices. If
7429 * the SES device is in the SES table indicating a maximum SCSI
7430 * bus speed, the speed is limited for the bus.
7435 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7440 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7441 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7442 ioa_cfg->bus_attr[i].bus_width);
7444 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7445 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7450 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7451 * @ioa_cfg: ioa config struct
7452 * @mode_pages: mode page 28 buffer
7454 * Updates mode page 28 based on driver configuration
7459 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7460 struct ipr_mode_pages *mode_pages)
7462 int i, entry_length;
7463 struct ipr_dev_bus_entry *bus;
7464 struct ipr_bus_attributes *bus_attr;
7465 struct ipr_mode_page28 *mode_page;
7467 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7468 sizeof(struct ipr_mode_page28));
7470 entry_length = mode_page->entry_length;
7472 /* Loop for each device bus entry */
7473 for (i = 0, bus = mode_page->bus;
7474 i < mode_page->num_entries;
7475 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7476 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7477 dev_err(&ioa_cfg->pdev->dev,
7478 "Invalid resource address reported: 0x%08X\n",
7479 IPR_GET_PHYS_LOC(bus->res_addr));
7483 bus_attr = &ioa_cfg->bus_attr[i];
7484 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7485 bus->bus_width = bus_attr->bus_width;
7486 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7487 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7488 if (bus_attr->qas_enabled)
7489 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7491 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7496 * ipr_build_mode_select - Build a mode select command
7497 * @ipr_cmd: ipr command struct
7498 * @res_handle: resource handle to send command to
7499 * @parm: Byte 2 of Mode Sense command
7500 * @dma_addr: DMA buffer address
7501 * @xfer_len: data transfer length
7506 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7507 __be32 res_handle, u8 parm,
7508 dma_addr_t dma_addr, u8 xfer_len)
7510 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7512 ioarcb->res_handle = res_handle;
7513 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7514 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7515 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7516 ioarcb->cmd_pkt.cdb[1] = parm;
7517 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7519 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7523 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7524 * @ipr_cmd: ipr command struct
7526 * This function sets up the SCSI bus attributes and sends
7527 * a Mode Select for Page 28 to activate them.
7532 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7534 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7535 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7539 ipr_scsi_bus_speed_limit(ioa_cfg);
7540 ipr_check_term_power(ioa_cfg, mode_pages);
7541 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7542 length = mode_pages->hdr.length + 1;
7543 mode_pages->hdr.length = 0;
7545 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7546 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7549 ipr_cmd->job_step = ipr_set_supported_devs;
7550 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7551 struct ipr_resource_entry, queue);
7552 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7555 return IPR_RC_JOB_RETURN;
7559 * ipr_build_mode_sense - Builds a mode sense command
7560 * @ipr_cmd: ipr command struct
7561 * @res: resource entry struct
7562 * @parm: Byte 2 of mode sense command
7563 * @dma_addr: DMA address of mode sense buffer
7564 * @xfer_len: Size of DMA buffer
7569 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7571 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7573 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7575 ioarcb->res_handle = res_handle;
7576 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7577 ioarcb->cmd_pkt.cdb[2] = parm;
7578 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7579 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7581 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7585 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7586 * @ipr_cmd: ipr command struct
7588 * This function handles the failure of an IOA bringup command.
7593 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7595 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7596 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7598 dev_err(&ioa_cfg->pdev->dev,
7599 "0x%02X failed with IOASC: 0x%08X\n",
7600 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7602 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7603 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7604 return IPR_RC_JOB_RETURN;
7608 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7609 * @ipr_cmd: ipr command struct
7611 * This function handles the failure of a Mode Sense to the IOAFP.
7612 * Some adapters do not handle all mode pages.
7615 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7617 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7619 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7620 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7622 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7623 ipr_cmd->job_step = ipr_set_supported_devs;
7624 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7625 struct ipr_resource_entry, queue);
7626 return IPR_RC_JOB_CONTINUE;
7629 return ipr_reset_cmd_failed(ipr_cmd);
7633 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7634 * @ipr_cmd: ipr command struct
7636 * This function send a Page 28 mode sense to the IOA to
7637 * retrieve SCSI bus attributes.
7642 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7644 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7647 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7648 0x28, ioa_cfg->vpd_cbs_dma +
7649 offsetof(struct ipr_misc_cbs, mode_pages),
7650 sizeof(struct ipr_mode_pages));
7652 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7653 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7655 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7658 return IPR_RC_JOB_RETURN;
7662 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7663 * @ipr_cmd: ipr command struct
7665 * This function enables dual IOA RAID support if possible.
7670 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7672 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7673 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7674 struct ipr_mode_page24 *mode_page;
7678 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7679 sizeof(struct ipr_mode_page24));
7682 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7684 length = mode_pages->hdr.length + 1;
7685 mode_pages->hdr.length = 0;
7687 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7688 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7691 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7692 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7695 return IPR_RC_JOB_RETURN;
7699 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7700 * @ipr_cmd: ipr command struct
7702 * This function handles the failure of a Mode Sense to the IOAFP.
7703 * Some adapters do not handle all mode pages.
7706 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7708 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7710 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7712 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7713 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7714 return IPR_RC_JOB_CONTINUE;
7717 return ipr_reset_cmd_failed(ipr_cmd);
7721 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7722 * @ipr_cmd: ipr command struct
7724 * This function send a mode sense to the IOA to retrieve
7725 * the IOA Advanced Function Control mode page.
7730 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7735 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7736 0x24, ioa_cfg->vpd_cbs_dma +
7737 offsetof(struct ipr_misc_cbs, mode_pages),
7738 sizeof(struct ipr_mode_pages));
7740 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7741 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7743 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7746 return IPR_RC_JOB_RETURN;
7750 * ipr_init_res_table - Initialize the resource table
7751 * @ipr_cmd: ipr command struct
7753 * This function looks through the existing resource table, comparing
7754 * it with the config table. This function will take care of old/new
7755 * devices and schedule adding/removing them from the mid-layer
7759 * IPR_RC_JOB_CONTINUE
7761 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7764 struct ipr_resource_entry *res, *temp;
7765 struct ipr_config_table_entry_wrapper cfgtew;
7766 int entries, found, flag, i;
7771 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7773 flag = ioa_cfg->u.cfg_table->hdr.flags;
7775 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7776 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7778 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7779 list_move_tail(&res->queue, &old_res);
7782 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7784 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7786 for (i = 0; i < entries; i++) {
7788 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7790 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7793 list_for_each_entry_safe(res, temp, &old_res, queue) {
7794 if (ipr_is_same_device(res, &cfgtew)) {
7795 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7802 if (list_empty(&ioa_cfg->free_res_q)) {
7803 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7808 res = list_entry(ioa_cfg->free_res_q.next,
7809 struct ipr_resource_entry, queue);
7810 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7811 ipr_init_res_entry(res, &cfgtew);
7813 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7814 res->sdev->allow_restart = 1;
7817 ipr_update_res_entry(res, &cfgtew);
7820 list_for_each_entry_safe(res, temp, &old_res, queue) {
7822 res->del_from_ml = 1;
7823 res->res_handle = IPR_INVALID_RES_HANDLE;
7824 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7828 list_for_each_entry_safe(res, temp, &old_res, queue) {
7829 ipr_clear_res_target(res);
7830 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7833 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7834 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7836 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7839 return IPR_RC_JOB_CONTINUE;
7843 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7844 * @ipr_cmd: ipr command struct
7846 * This function sends a Query IOA Configuration command
7847 * to the adapter to retrieve the IOA configuration table.
7852 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7854 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7855 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7856 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7857 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7860 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7861 ioa_cfg->dual_raid = 1;
7862 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7863 ucode_vpd->major_release, ucode_vpd->card_type,
7864 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7865 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7866 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7868 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7869 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7870 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7871 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7873 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7874 IPR_IOADL_FLAGS_READ_LAST);
7876 ipr_cmd->job_step = ipr_init_res_table;
7878 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7881 return IPR_RC_JOB_RETURN;
7884 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7886 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7888 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7889 return IPR_RC_JOB_CONTINUE;
7891 return ipr_reset_cmd_failed(ipr_cmd);
7894 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7895 __be32 res_handle, u8 sa_code)
7897 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7899 ioarcb->res_handle = res_handle;
7900 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7901 ioarcb->cmd_pkt.cdb[1] = sa_code;
7902 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7906 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7912 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7914 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7915 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7916 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7920 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7922 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7923 ipr_build_ioa_service_action(ipr_cmd,
7924 cpu_to_be32(IPR_IOA_RES_HANDLE),
7925 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7927 ioarcb->cmd_pkt.cdb[2] = 0x40;
7929 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7930 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7931 IPR_SET_SUP_DEVICE_TIMEOUT);
7934 return IPR_RC_JOB_RETURN;
7938 return IPR_RC_JOB_CONTINUE;
7942 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7943 * @ipr_cmd: ipr command struct
7945 * This utility function sends an inquiry to the adapter.
7950 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7951 dma_addr_t dma_addr, u8 xfer_len)
7953 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7956 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7957 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7959 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7960 ioarcb->cmd_pkt.cdb[1] = flags;
7961 ioarcb->cmd_pkt.cdb[2] = page;
7962 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7964 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7966 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7971 * ipr_inquiry_page_supported - Is the given inquiry page supported
7972 * @page0: inquiry page 0 buffer
7975 * This function determines if the specified inquiry page is supported.
7978 * 1 if page is supported / 0 if not
7980 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7984 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7985 if (page0->page[i] == page)
7992 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7993 * @ipr_cmd: ipr command struct
7995 * This function sends a Page 0xC4 inquiry to the adapter
7996 * to retrieve software VPD information.
7999 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8001 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
8003 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8004 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8005 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
8008 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
8009 memset(pageC4, 0, sizeof(*pageC4));
8011 if (ipr_inquiry_page_supported(page0, 0xC4)) {
8012 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
8013 (ioa_cfg->vpd_cbs_dma
8014 + offsetof(struct ipr_misc_cbs,
8016 sizeof(struct ipr_inquiry_pageC4));
8017 return IPR_RC_JOB_RETURN;
8021 return IPR_RC_JOB_CONTINUE;
8025 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
8026 * @ipr_cmd: ipr command struct
8028 * This function sends a Page 0xD0 inquiry to the adapter
8029 * to retrieve adapter capabilities.
8032 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8034 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
8036 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8037 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8038 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
8041 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
8042 memset(cap, 0, sizeof(*cap));
8044 if (ipr_inquiry_page_supported(page0, 0xD0)) {
8045 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
8046 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
8047 sizeof(struct ipr_inquiry_cap));
8048 return IPR_RC_JOB_RETURN;
8052 return IPR_RC_JOB_CONTINUE;
8056 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
8057 * @ipr_cmd: ipr command struct
8059 * This function sends a Page 3 inquiry to the adapter
8060 * to retrieve software VPD information.
8063 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8065 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
8067 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8071 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
8073 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
8074 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
8075 sizeof(struct ipr_inquiry_page3));
8078 return IPR_RC_JOB_RETURN;
8082 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
8083 * @ipr_cmd: ipr command struct
8085 * This function sends a Page 0 inquiry to the adapter
8086 * to retrieve supported inquiry pages.
8089 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8091 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
8093 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8098 /* Grab the type out of the VPD and store it away */
8099 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
8101 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
8103 if (ipr_invalid_adapter(ioa_cfg)) {
8104 dev_err(&ioa_cfg->pdev->dev,
8105 "Adapter not supported in this hardware configuration.\n");
8107 if (!ipr_testmode) {
8108 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
8109 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8110 list_add_tail(&ipr_cmd->queue,
8111 &ioa_cfg->hrrq->hrrq_free_q);
8112 return IPR_RC_JOB_RETURN;
8116 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
8118 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
8119 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
8120 sizeof(struct ipr_inquiry_page0));
8123 return IPR_RC_JOB_RETURN;
8127 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
8128 * @ipr_cmd: ipr command struct
8130 * This function sends a standard inquiry to the adapter.
8135 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
8137 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8140 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
8142 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
8143 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
8144 sizeof(struct ipr_ioa_vpd));
8147 return IPR_RC_JOB_RETURN;
8151 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
8152 * @ipr_cmd: ipr command struct
8154 * This function send an Identify Host Request Response Queue
8155 * command to establish the HRRQ with the adapter.
8160 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
8162 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8163 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
8164 struct ipr_hrr_queue *hrrq;
8167 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
8168 if (ioa_cfg->identify_hrrq_index == 0)
8169 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
8171 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
8172 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
8174 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
8175 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8177 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8179 ioarcb->cmd_pkt.cdb[1] = 0x1;
8181 if (ioa_cfg->nvectors == 1)
8182 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
8184 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
8186 ioarcb->cmd_pkt.cdb[2] =
8187 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
8188 ioarcb->cmd_pkt.cdb[3] =
8189 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
8190 ioarcb->cmd_pkt.cdb[4] =
8191 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
8192 ioarcb->cmd_pkt.cdb[5] =
8193 ((u64) hrrq->host_rrq_dma) & 0xff;
8194 ioarcb->cmd_pkt.cdb[7] =
8195 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
8196 ioarcb->cmd_pkt.cdb[8] =
8197 (sizeof(u32) * hrrq->size) & 0xff;
8199 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8200 ioarcb->cmd_pkt.cdb[9] =
8201 ioa_cfg->identify_hrrq_index;
8203 if (ioa_cfg->sis64) {
8204 ioarcb->cmd_pkt.cdb[10] =
8205 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8206 ioarcb->cmd_pkt.cdb[11] =
8207 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8208 ioarcb->cmd_pkt.cdb[12] =
8209 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8210 ioarcb->cmd_pkt.cdb[13] =
8211 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8214 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8215 ioarcb->cmd_pkt.cdb[14] =
8216 ioa_cfg->identify_hrrq_index;
8218 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8219 IPR_INTERNAL_TIMEOUT);
8221 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8222 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8225 return IPR_RC_JOB_RETURN;
8229 return IPR_RC_JOB_CONTINUE;
8233 * ipr_reset_timer_done - Adapter reset timer function
8234 * @ipr_cmd: ipr command struct
8236 * Description: This function is used in adapter reset processing
8237 * for timing events. If the reset_cmd pointer in the IOA
8238 * config struct is not this adapter's we are doing nested
8239 * resets and fail_all_ops will take care of freeing the
8245 static void ipr_reset_timer_done(struct timer_list *t)
8247 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
8248 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8249 unsigned long lock_flags = 0;
8251 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8253 if (ioa_cfg->reset_cmd == ipr_cmd) {
8254 list_del(&ipr_cmd->queue);
8255 ipr_cmd->done(ipr_cmd);
8258 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8262 * ipr_reset_start_timer - Start a timer for adapter reset job
8263 * @ipr_cmd: ipr command struct
8264 * @timeout: timeout value
8266 * Description: This function is used in adapter reset processing
8267 * for timing events. If the reset_cmd pointer in the IOA
8268 * config struct is not this adapter's we are doing nested
8269 * resets and fail_all_ops will take care of freeing the
8275 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8276 unsigned long timeout)
8280 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8281 ipr_cmd->done = ipr_reset_ioa_job;
8283 ipr_cmd->timer.expires = jiffies + timeout;
8284 ipr_cmd->timer.function = ipr_reset_timer_done;
8285 add_timer(&ipr_cmd->timer);
8289 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8290 * @ioa_cfg: ioa cfg struct
8295 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8297 struct ipr_hrr_queue *hrrq;
8299 for_each_hrrq(hrrq, ioa_cfg) {
8300 spin_lock(&hrrq->_lock);
8301 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8303 /* Initialize Host RRQ pointers */
8304 hrrq->hrrq_start = hrrq->host_rrq;
8305 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8306 hrrq->hrrq_curr = hrrq->hrrq_start;
8307 hrrq->toggle_bit = 1;
8308 spin_unlock(&hrrq->_lock);
8312 ioa_cfg->identify_hrrq_index = 0;
8313 if (ioa_cfg->hrrq_num == 1)
8314 atomic_set(&ioa_cfg->hrrq_index, 0);
8316 atomic_set(&ioa_cfg->hrrq_index, 1);
8318 /* Zero out config table */
8319 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8323 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8324 * @ipr_cmd: ipr command struct
8327 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8329 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8331 unsigned long stage, stage_time;
8333 volatile u32 int_reg;
8334 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8337 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8338 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8339 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8341 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8343 /* sanity check the stage_time value */
8344 if (stage_time == 0)
8345 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8346 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8347 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8348 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8349 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8351 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8352 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8353 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8354 stage_time = ioa_cfg->transop_timeout;
8355 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8356 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8357 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8358 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8359 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8360 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8361 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8362 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8363 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8364 return IPR_RC_JOB_CONTINUE;
8368 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8369 ipr_cmd->timer.function = ipr_oper_timeout;
8370 ipr_cmd->done = ipr_reset_ioa_job;
8371 add_timer(&ipr_cmd->timer);
8373 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8375 return IPR_RC_JOB_RETURN;
8379 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8380 * @ipr_cmd: ipr command struct
8382 * This function reinitializes some control blocks and
8383 * enables destructive diagnostics on the adapter.
8388 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8391 volatile u32 int_reg;
8392 volatile u64 maskval;
8396 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8397 ipr_init_ioa_mem(ioa_cfg);
8399 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8400 spin_lock(&ioa_cfg->hrrq[i]._lock);
8401 ioa_cfg->hrrq[i].allow_interrupts = 1;
8402 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8405 if (ioa_cfg->sis64) {
8406 /* Set the adapter to the correct endian mode. */
8407 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8408 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8411 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8413 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8414 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8415 ioa_cfg->regs.clr_interrupt_mask_reg32);
8416 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8417 return IPR_RC_JOB_CONTINUE;
8420 /* Enable destructive diagnostics on IOA */
8421 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8423 if (ioa_cfg->sis64) {
8424 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8425 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8426 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8428 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8430 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8432 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8434 if (ioa_cfg->sis64) {
8435 ipr_cmd->job_step = ipr_reset_next_stage;
8436 return IPR_RC_JOB_CONTINUE;
8439 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8440 ipr_cmd->timer.function = ipr_oper_timeout;
8441 ipr_cmd->done = ipr_reset_ioa_job;
8442 add_timer(&ipr_cmd->timer);
8443 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8446 return IPR_RC_JOB_RETURN;
8450 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8451 * @ipr_cmd: ipr command struct
8453 * This function is invoked when an adapter dump has run out
8454 * of processing time.
8457 * IPR_RC_JOB_CONTINUE
8459 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8461 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8463 if (ioa_cfg->sdt_state == GET_DUMP)
8464 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8465 else if (ioa_cfg->sdt_state == READ_DUMP)
8466 ioa_cfg->sdt_state = ABORT_DUMP;
8468 ioa_cfg->dump_timeout = 1;
8469 ipr_cmd->job_step = ipr_reset_alert;
8471 return IPR_RC_JOB_CONTINUE;
8475 * ipr_unit_check_no_data - Log a unit check/no data error log
8476 * @ioa_cfg: ioa config struct
8478 * Logs an error indicating the adapter unit checked, but for some
8479 * reason, we were unable to fetch the unit check buffer.
8484 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8486 ioa_cfg->errors_logged++;
8487 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8491 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8492 * @ioa_cfg: ioa config struct
8494 * Fetches the unit check buffer from the adapter by clocking the data
8495 * through the mailbox register.
8500 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8502 unsigned long mailbox;
8503 struct ipr_hostrcb *hostrcb;
8504 struct ipr_uc_sdt sdt;
8508 mailbox = readl(ioa_cfg->ioa_mailbox);
8510 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8511 ipr_unit_check_no_data(ioa_cfg);
8515 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8516 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8517 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8519 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8520 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8521 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8522 ipr_unit_check_no_data(ioa_cfg);
8526 /* Find length of the first sdt entry (UC buffer) */
8527 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8528 length = be32_to_cpu(sdt.entry[0].end_token);
8530 length = (be32_to_cpu(sdt.entry[0].end_token) -
8531 be32_to_cpu(sdt.entry[0].start_token)) &
8532 IPR_FMT2_MBX_ADDR_MASK;
8534 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8535 struct ipr_hostrcb, queue);
8536 list_del_init(&hostrcb->queue);
8537 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8539 rc = ipr_get_ldump_data_section(ioa_cfg,
8540 be32_to_cpu(sdt.entry[0].start_token),
8541 (__be32 *)&hostrcb->hcam,
8542 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8545 ipr_handle_log_data(ioa_cfg, hostrcb);
8546 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8547 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8548 ioa_cfg->sdt_state == GET_DUMP)
8549 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8551 ipr_unit_check_no_data(ioa_cfg);
8553 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8557 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8558 * @ipr_cmd: ipr command struct
8560 * Description: This function will call to get the unit check buffer.
8565 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8570 ioa_cfg->ioa_unit_checked = 0;
8571 ipr_get_unit_check_buffer(ioa_cfg);
8572 ipr_cmd->job_step = ipr_reset_alert;
8573 ipr_reset_start_timer(ipr_cmd, 0);
8576 return IPR_RC_JOB_RETURN;
8579 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8581 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8585 if (ioa_cfg->sdt_state != GET_DUMP)
8586 return IPR_RC_JOB_RETURN;
8588 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8589 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8590 IPR_PCII_MAILBOX_STABLE)) {
8592 if (!ipr_cmd->u.time_left)
8593 dev_err(&ioa_cfg->pdev->dev,
8594 "Timed out waiting for Mailbox register.\n");
8596 ioa_cfg->sdt_state = READ_DUMP;
8597 ioa_cfg->dump_timeout = 0;
8599 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8601 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8602 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8603 schedule_work(&ioa_cfg->work_q);
8606 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8607 ipr_reset_start_timer(ipr_cmd,
8608 IPR_CHECK_FOR_RESET_TIMEOUT);
8612 return IPR_RC_JOB_RETURN;
8616 * ipr_reset_restore_cfg_space - Restore PCI config space.
8617 * @ipr_cmd: ipr command struct
8619 * Description: This function restores the saved PCI config space of
8620 * the adapter, fails all outstanding ops back to the callers, and
8621 * fetches the dump/unit check if applicable to this reset.
8624 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8626 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8632 ioa_cfg->pdev->state_saved = true;
8633 pci_restore_state(ioa_cfg->pdev);
8635 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8636 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8637 return IPR_RC_JOB_CONTINUE;
8640 ipr_fail_all_ops(ioa_cfg);
8642 if (ioa_cfg->sis64) {
8643 /* Set the adapter to the correct endian mode. */
8644 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8645 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8648 if (ioa_cfg->ioa_unit_checked) {
8649 if (ioa_cfg->sis64) {
8650 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8651 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8652 return IPR_RC_JOB_RETURN;
8654 ioa_cfg->ioa_unit_checked = 0;
8655 ipr_get_unit_check_buffer(ioa_cfg);
8656 ipr_cmd->job_step = ipr_reset_alert;
8657 ipr_reset_start_timer(ipr_cmd, 0);
8658 return IPR_RC_JOB_RETURN;
8662 if (ioa_cfg->in_ioa_bringdown) {
8663 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8664 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8665 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8666 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8668 ipr_cmd->job_step = ipr_reset_enable_ioa;
8672 return IPR_RC_JOB_CONTINUE;
8676 * ipr_reset_bist_done - BIST has completed on the adapter.
8677 * @ipr_cmd: ipr command struct
8679 * Description: Unblock config space and resume the reset process.
8682 * IPR_RC_JOB_CONTINUE
8684 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8686 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8689 if (ioa_cfg->cfg_locked)
8690 pci_cfg_access_unlock(ioa_cfg->pdev);
8691 ioa_cfg->cfg_locked = 0;
8692 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8694 return IPR_RC_JOB_CONTINUE;
8698 * ipr_reset_start_bist - Run BIST on the adapter.
8699 * @ipr_cmd: ipr command struct
8701 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8704 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8706 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8708 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8709 int rc = PCIBIOS_SUCCESSFUL;
8712 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8713 writel(IPR_UPROCI_SIS64_START_BIST,
8714 ioa_cfg->regs.set_uproc_interrupt_reg32);
8716 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8718 if (rc == PCIBIOS_SUCCESSFUL) {
8719 ipr_cmd->job_step = ipr_reset_bist_done;
8720 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8721 rc = IPR_RC_JOB_RETURN;
8723 if (ioa_cfg->cfg_locked)
8724 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8725 ioa_cfg->cfg_locked = 0;
8726 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8727 rc = IPR_RC_JOB_CONTINUE;
8735 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8736 * @ipr_cmd: ipr command struct
8738 * Description: This clears PCI reset to the adapter and delays two seconds.
8743 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8746 ipr_cmd->job_step = ipr_reset_bist_done;
8747 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8749 return IPR_RC_JOB_RETURN;
8753 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8754 * @work: work struct
8756 * Description: This pulses warm reset to a slot.
8759 static void ipr_reset_reset_work(struct work_struct *work)
8761 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8763 struct pci_dev *pdev = ioa_cfg->pdev;
8764 unsigned long lock_flags = 0;
8767 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8768 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8769 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8772 if (ioa_cfg->reset_cmd == ipr_cmd)
8773 ipr_reset_ioa_job(ipr_cmd);
8774 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8779 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8780 * @ipr_cmd: ipr command struct
8782 * Description: This asserts PCI reset to the adapter.
8787 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8792 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8793 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8794 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8796 return IPR_RC_JOB_RETURN;
8800 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8801 * @ipr_cmd: ipr command struct
8803 * Description: This attempts to block config access to the IOA.
8806 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8808 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8810 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8811 int rc = IPR_RC_JOB_CONTINUE;
8813 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8814 ioa_cfg->cfg_locked = 1;
8815 ipr_cmd->job_step = ioa_cfg->reset;
8817 if (ipr_cmd->u.time_left) {
8818 rc = IPR_RC_JOB_RETURN;
8819 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8820 ipr_reset_start_timer(ipr_cmd,
8821 IPR_CHECK_FOR_RESET_TIMEOUT);
8823 ipr_cmd->job_step = ioa_cfg->reset;
8824 dev_err(&ioa_cfg->pdev->dev,
8825 "Timed out waiting to lock config access. Resetting anyway.\n");
8833 * ipr_reset_block_config_access - Block config access to the IOA
8834 * @ipr_cmd: ipr command struct
8836 * Description: This attempts to block config access to the IOA
8839 * IPR_RC_JOB_CONTINUE
8841 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8843 ipr_cmd->ioa_cfg->cfg_locked = 0;
8844 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8845 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8846 return IPR_RC_JOB_CONTINUE;
8850 * ipr_reset_allowed - Query whether or not IOA can be reset
8851 * @ioa_cfg: ioa config struct
8854 * 0 if reset not allowed / non-zero if reset is allowed
8856 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8858 volatile u32 temp_reg;
8860 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8861 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8865 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8866 * @ipr_cmd: ipr command struct
8868 * Description: This function waits for adapter permission to run BIST,
8869 * then runs BIST. If the adapter does not give permission after a
8870 * reasonable time, we will reset the adapter anyway. The impact of
8871 * resetting the adapter without warning the adapter is the risk of
8872 * losing the persistent error log on the adapter. If the adapter is
8873 * reset while it is writing to the flash on the adapter, the flash
8874 * segment will have bad ECC and be zeroed.
8877 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8879 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8881 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8882 int rc = IPR_RC_JOB_RETURN;
8884 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8885 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8886 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8888 ipr_cmd->job_step = ipr_reset_block_config_access;
8889 rc = IPR_RC_JOB_CONTINUE;
8896 * ipr_reset_alert - Alert the adapter of a pending reset
8897 * @ipr_cmd: ipr command struct
8899 * Description: This function alerts the adapter that it will be reset.
8900 * If memory space is not currently enabled, proceed directly
8901 * to running BIST on the adapter. The timer must always be started
8902 * so we guarantee we do not run BIST from ipr_isr.
8907 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8909 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8914 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8916 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8917 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8918 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8919 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8921 ipr_cmd->job_step = ipr_reset_block_config_access;
8924 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8925 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8928 return IPR_RC_JOB_RETURN;
8932 * ipr_reset_quiesce_done - Complete IOA disconnect
8933 * @ipr_cmd: ipr command struct
8935 * Description: Freeze the adapter to complete quiesce processing
8938 * IPR_RC_JOB_CONTINUE
8940 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8942 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8945 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8946 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8948 return IPR_RC_JOB_CONTINUE;
8952 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8953 * @ipr_cmd: ipr command struct
8955 * Description: Ensure nothing is outstanding to the IOA and
8956 * proceed with IOA disconnect. Otherwise reset the IOA.
8959 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8961 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8964 struct ipr_cmnd *loop_cmd;
8965 struct ipr_hrr_queue *hrrq;
8966 int rc = IPR_RC_JOB_CONTINUE;
8970 ipr_cmd->job_step = ipr_reset_quiesce_done;
8972 for_each_hrrq(hrrq, ioa_cfg) {
8973 spin_lock(&hrrq->_lock);
8974 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8976 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8977 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8978 rc = IPR_RC_JOB_RETURN;
8981 spin_unlock(&hrrq->_lock);
8992 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8993 * @ipr_cmd: ipr command struct
8995 * Description: Cancel any oustanding HCAMs to the IOA.
8998 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9000 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
9002 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9003 int rc = IPR_RC_JOB_CONTINUE;
9004 struct ipr_cmd_pkt *cmd_pkt;
9005 struct ipr_cmnd *hcam_cmd;
9006 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
9009 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
9011 if (!hrrq->ioa_is_dead) {
9012 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
9013 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
9014 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
9017 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9018 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9019 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
9020 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
9021 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
9022 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
9023 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
9024 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
9025 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
9026 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
9027 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
9028 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
9029 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
9030 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
9032 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9033 IPR_CANCEL_TIMEOUT);
9035 rc = IPR_RC_JOB_RETURN;
9036 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9041 ipr_cmd->job_step = ipr_reset_alert;
9048 * ipr_reset_ucode_download_done - Microcode download completion
9049 * @ipr_cmd: ipr command struct
9051 * Description: This function unmaps the microcode download buffer.
9054 * IPR_RC_JOB_CONTINUE
9056 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
9058 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9059 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9061 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
9062 sglist->num_sg, DMA_TO_DEVICE);
9064 ipr_cmd->job_step = ipr_reset_alert;
9065 return IPR_RC_JOB_CONTINUE;
9069 * ipr_reset_ucode_download - Download microcode to the adapter
9070 * @ipr_cmd: ipr command struct
9072 * Description: This function checks to see if it there is microcode
9073 * to download to the adapter. If there is, a download is performed.
9076 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9078 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
9080 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9081 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9084 ipr_cmd->job_step = ipr_reset_alert;
9087 return IPR_RC_JOB_CONTINUE;
9089 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9090 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
9091 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
9092 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
9093 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
9094 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
9095 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
9098 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
9100 ipr_build_ucode_ioadl(ipr_cmd, sglist);
9101 ipr_cmd->job_step = ipr_reset_ucode_download_done;
9103 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9104 IPR_WRITE_BUFFER_TIMEOUT);
9107 return IPR_RC_JOB_RETURN;
9111 * ipr_reset_shutdown_ioa - Shutdown the adapter
9112 * @ipr_cmd: ipr command struct
9114 * Description: This function issues an adapter shutdown of the
9115 * specified type to the specified adapter as part of the
9116 * adapter reset job.
9119 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9121 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
9123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9124 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
9125 unsigned long timeout;
9126 int rc = IPR_RC_JOB_CONTINUE;
9129 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
9130 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9131 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
9132 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
9133 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9134 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9135 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9136 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
9138 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
9139 timeout = IPR_SHUTDOWN_TIMEOUT;
9140 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
9141 timeout = IPR_INTERNAL_TIMEOUT;
9142 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
9143 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
9145 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
9147 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
9149 rc = IPR_RC_JOB_RETURN;
9150 ipr_cmd->job_step = ipr_reset_ucode_download;
9152 ipr_cmd->job_step = ipr_reset_alert;
9159 * ipr_reset_ioa_job - Adapter reset job
9160 * @ipr_cmd: ipr command struct
9162 * Description: This function is the job router for the adapter reset job.
9167 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
9170 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9173 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
9175 if (ioa_cfg->reset_cmd != ipr_cmd) {
9177 * We are doing nested adapter resets and this is
9178 * not the current reset job.
9180 list_add_tail(&ipr_cmd->queue,
9181 &ipr_cmd->hrrq->hrrq_free_q);
9185 if (IPR_IOASC_SENSE_KEY(ioasc)) {
9186 rc = ipr_cmd->job_step_failed(ipr_cmd);
9187 if (rc == IPR_RC_JOB_RETURN)
9191 ipr_reinit_ipr_cmnd(ipr_cmd);
9192 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
9193 rc = ipr_cmd->job_step(ipr_cmd);
9194 } while (rc == IPR_RC_JOB_CONTINUE);
9198 * _ipr_initiate_ioa_reset - Initiate an adapter reset
9199 * @ioa_cfg: ioa config struct
9200 * @job_step: first job step of reset job
9201 * @shutdown_type: shutdown type
9203 * Description: This function will initiate the reset of the given adapter
9204 * starting at the selected job step.
9205 * If the caller needs to wait on the completion of the reset,
9206 * the caller must sleep on the reset_wait_q.
9211 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9212 int (*job_step) (struct ipr_cmnd *),
9213 enum ipr_shutdown_type shutdown_type)
9215 struct ipr_cmnd *ipr_cmd;
9218 ioa_cfg->in_reset_reload = 1;
9219 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9220 spin_lock(&ioa_cfg->hrrq[i]._lock);
9221 ioa_cfg->hrrq[i].allow_cmds = 0;
9222 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9225 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9226 ioa_cfg->scsi_unblock = 0;
9227 ioa_cfg->scsi_blocked = 1;
9228 scsi_block_requests(ioa_cfg->host);
9231 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9232 ioa_cfg->reset_cmd = ipr_cmd;
9233 ipr_cmd->job_step = job_step;
9234 ipr_cmd->u.shutdown_type = shutdown_type;
9236 ipr_reset_ioa_job(ipr_cmd);
9240 * ipr_initiate_ioa_reset - Initiate an adapter reset
9241 * @ioa_cfg: ioa config struct
9242 * @shutdown_type: shutdown type
9244 * Description: This function will initiate the reset of the given adapter.
9245 * If the caller needs to wait on the completion of the reset,
9246 * the caller must sleep on the reset_wait_q.
9251 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9252 enum ipr_shutdown_type shutdown_type)
9256 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9259 if (ioa_cfg->in_reset_reload) {
9260 if (ioa_cfg->sdt_state == GET_DUMP)
9261 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9262 else if (ioa_cfg->sdt_state == READ_DUMP)
9263 ioa_cfg->sdt_state = ABORT_DUMP;
9266 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9267 dev_err(&ioa_cfg->pdev->dev,
9268 "IOA taken offline - error recovery failed\n");
9270 ioa_cfg->reset_retries = 0;
9271 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9272 spin_lock(&ioa_cfg->hrrq[i]._lock);
9273 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9274 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9278 if (ioa_cfg->in_ioa_bringdown) {
9279 ioa_cfg->reset_cmd = NULL;
9280 ioa_cfg->in_reset_reload = 0;
9281 ipr_fail_all_ops(ioa_cfg);
9282 wake_up_all(&ioa_cfg->reset_wait_q);
9284 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9285 ioa_cfg->scsi_unblock = 1;
9286 schedule_work(&ioa_cfg->work_q);
9290 ioa_cfg->in_ioa_bringdown = 1;
9291 shutdown_type = IPR_SHUTDOWN_NONE;
9295 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9300 * ipr_reset_freeze - Hold off all I/O activity
9301 * @ipr_cmd: ipr command struct
9303 * Description: If the PCI slot is frozen, hold off all I/O
9304 * activity; then, as soon as the slot is available again,
9305 * initiate an adapter reset.
9307 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9309 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9312 /* Disallow new interrupts, avoid loop */
9313 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9314 spin_lock(&ioa_cfg->hrrq[i]._lock);
9315 ioa_cfg->hrrq[i].allow_interrupts = 0;
9316 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9319 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9320 ipr_cmd->done = ipr_reset_ioa_job;
9321 return IPR_RC_JOB_RETURN;
9325 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9326 * @pdev: PCI device struct
9328 * Description: This routine is called to tell us that the MMIO
9329 * access to the IOA has been restored
9331 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9333 unsigned long flags = 0;
9334 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9336 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9337 if (!ioa_cfg->probe_done)
9338 pci_save_state(pdev);
9339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9340 return PCI_ERS_RESULT_NEED_RESET;
9344 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9345 * @pdev: PCI device struct
9347 * Description: This routine is called to tell us that the PCI bus
9348 * is down. Can't do anything here, except put the device driver
9349 * into a holding pattern, waiting for the PCI bus to come back.
9351 static void ipr_pci_frozen(struct pci_dev *pdev)
9353 unsigned long flags = 0;
9354 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9356 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9357 if (ioa_cfg->probe_done)
9358 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9363 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9364 * @pdev: PCI device struct
9366 * Description: This routine is called by the pci error recovery
9367 * code after the PCI slot has been reset, just before we
9368 * should resume normal operations.
9370 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9372 unsigned long flags = 0;
9373 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9375 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9376 if (ioa_cfg->probe_done) {
9377 if (ioa_cfg->needs_warm_reset)
9378 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9380 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9383 wake_up_all(&ioa_cfg->eeh_wait_q);
9384 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9385 return PCI_ERS_RESULT_RECOVERED;
9389 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9390 * @pdev: PCI device struct
9392 * Description: This routine is called when the PCI bus has
9393 * permanently failed.
9395 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9397 unsigned long flags = 0;
9398 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9401 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9402 if (ioa_cfg->probe_done) {
9403 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9404 ioa_cfg->sdt_state = ABORT_DUMP;
9405 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9406 ioa_cfg->in_ioa_bringdown = 1;
9407 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9408 spin_lock(&ioa_cfg->hrrq[i]._lock);
9409 ioa_cfg->hrrq[i].allow_cmds = 0;
9410 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9413 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9415 wake_up_all(&ioa_cfg->eeh_wait_q);
9416 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9420 * ipr_pci_error_detected - Called when a PCI error is detected.
9421 * @pdev: PCI device struct
9422 * @state: PCI channel state
9424 * Description: Called when a PCI error is detected.
9427 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9429 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9430 pci_channel_state_t state)
9433 case pci_channel_io_frozen:
9434 ipr_pci_frozen(pdev);
9435 return PCI_ERS_RESULT_CAN_RECOVER;
9436 case pci_channel_io_perm_failure:
9437 ipr_pci_perm_failure(pdev);
9438 return PCI_ERS_RESULT_DISCONNECT;
9443 return PCI_ERS_RESULT_NEED_RESET;
9447 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9448 * @ioa_cfg: ioa cfg struct
9450 * Description: This is the second phase of adapter initialization
9451 * This function takes care of initilizing the adapter to the point
9452 * where it can accept new commands.
9455 * 0 on success / -EIO on failure
9457 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9460 unsigned long host_lock_flags = 0;
9463 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9464 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9465 ioa_cfg->probe_done = 1;
9466 if (ioa_cfg->needs_hard_reset) {
9467 ioa_cfg->needs_hard_reset = 0;
9468 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9470 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9472 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9479 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9480 * @ioa_cfg: ioa config struct
9485 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9489 if (ioa_cfg->ipr_cmnd_list) {
9490 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9491 if (ioa_cfg->ipr_cmnd_list[i])
9492 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9493 ioa_cfg->ipr_cmnd_list[i],
9494 ioa_cfg->ipr_cmnd_list_dma[i]);
9496 ioa_cfg->ipr_cmnd_list[i] = NULL;
9500 if (ioa_cfg->ipr_cmd_pool)
9501 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9503 kfree(ioa_cfg->ipr_cmnd_list);
9504 kfree(ioa_cfg->ipr_cmnd_list_dma);
9505 ioa_cfg->ipr_cmnd_list = NULL;
9506 ioa_cfg->ipr_cmnd_list_dma = NULL;
9507 ioa_cfg->ipr_cmd_pool = NULL;
9511 * ipr_free_mem - Frees memory allocated for an adapter
9512 * @ioa_cfg: ioa cfg struct
9517 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9521 kfree(ioa_cfg->res_entries);
9522 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9523 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9524 ipr_free_cmd_blks(ioa_cfg);
9526 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9527 dma_free_coherent(&ioa_cfg->pdev->dev,
9528 sizeof(u32) * ioa_cfg->hrrq[i].size,
9529 ioa_cfg->hrrq[i].host_rrq,
9530 ioa_cfg->hrrq[i].host_rrq_dma);
9532 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9533 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9535 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9536 dma_free_coherent(&ioa_cfg->pdev->dev,
9537 sizeof(struct ipr_hostrcb),
9538 ioa_cfg->hostrcb[i],
9539 ioa_cfg->hostrcb_dma[i]);
9542 ipr_free_dump(ioa_cfg);
9543 kfree(ioa_cfg->trace);
9547 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9548 * @ioa_cfg: ipr cfg struct
9550 * This function frees all allocated IRQs for the
9551 * specified adapter.
9556 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9558 struct pci_dev *pdev = ioa_cfg->pdev;
9561 for (i = 0; i < ioa_cfg->nvectors; i++)
9562 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]);
9563 pci_free_irq_vectors(pdev);
9567 * ipr_free_all_resources - Free all allocated resources for an adapter.
9568 * @ipr_cmd: ipr command struct
9570 * This function frees all allocated resources for the
9571 * specified adapter.
9576 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9578 struct pci_dev *pdev = ioa_cfg->pdev;
9581 ipr_free_irqs(ioa_cfg);
9582 if (ioa_cfg->reset_work_q)
9583 destroy_workqueue(ioa_cfg->reset_work_q);
9584 iounmap(ioa_cfg->hdw_dma_regs);
9585 pci_release_regions(pdev);
9586 ipr_free_mem(ioa_cfg);
9587 scsi_host_put(ioa_cfg->host);
9588 pci_disable_device(pdev);
9593 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9594 * @ioa_cfg: ioa config struct
9597 * 0 on success / -ENOMEM on allocation failure
9599 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9601 struct ipr_cmnd *ipr_cmd;
9602 struct ipr_ioarcb *ioarcb;
9603 dma_addr_t dma_addr;
9604 int i, entries_each_hrrq, hrrq_id = 0;
9606 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9607 sizeof(struct ipr_cmnd), 512, 0);
9609 if (!ioa_cfg->ipr_cmd_pool)
9612 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9613 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9615 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9616 ipr_free_cmd_blks(ioa_cfg);
9620 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9621 if (ioa_cfg->hrrq_num > 1) {
9623 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9624 ioa_cfg->hrrq[i].min_cmd_id = 0;
9625 ioa_cfg->hrrq[i].max_cmd_id =
9626 (entries_each_hrrq - 1);
9629 IPR_NUM_BASE_CMD_BLKS/
9630 (ioa_cfg->hrrq_num - 1);
9631 ioa_cfg->hrrq[i].min_cmd_id =
9632 IPR_NUM_INTERNAL_CMD_BLKS +
9633 (i - 1) * entries_each_hrrq;
9634 ioa_cfg->hrrq[i].max_cmd_id =
9635 (IPR_NUM_INTERNAL_CMD_BLKS +
9636 i * entries_each_hrrq - 1);
9639 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9640 ioa_cfg->hrrq[i].min_cmd_id = 0;
9641 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9643 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9646 BUG_ON(ioa_cfg->hrrq_num == 0);
9648 i = IPR_NUM_CMD_BLKS -
9649 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9651 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9652 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9655 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9656 ipr_cmd = dma_pool_zalloc(ioa_cfg->ipr_cmd_pool,
9657 GFP_KERNEL, &dma_addr);
9660 ipr_free_cmd_blks(ioa_cfg);
9664 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9665 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9667 ioarcb = &ipr_cmd->ioarcb;
9668 ipr_cmd->dma_addr = dma_addr;
9670 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9672 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9674 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9675 if (ioa_cfg->sis64) {
9676 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9677 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9678 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9679 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9681 ioarcb->write_ioadl_addr =
9682 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9683 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9684 ioarcb->ioasa_host_pci_addr =
9685 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9687 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9688 ipr_cmd->cmd_index = i;
9689 ipr_cmd->ioa_cfg = ioa_cfg;
9690 ipr_cmd->sense_buffer_dma = dma_addr +
9691 offsetof(struct ipr_cmnd, sense_buffer);
9693 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9694 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9695 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9696 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9704 * ipr_alloc_mem - Allocate memory for an adapter
9705 * @ioa_cfg: ioa config struct
9708 * 0 on success / non-zero for error
9710 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9712 struct pci_dev *pdev = ioa_cfg->pdev;
9713 int i, rc = -ENOMEM;
9716 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9717 ioa_cfg->max_devs_supported, GFP_KERNEL);
9719 if (!ioa_cfg->res_entries)
9722 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9723 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9724 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9727 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9728 sizeof(struct ipr_misc_cbs),
9729 &ioa_cfg->vpd_cbs_dma,
9732 if (!ioa_cfg->vpd_cbs)
9733 goto out_free_res_entries;
9735 if (ipr_alloc_cmd_blks(ioa_cfg))
9736 goto out_free_vpd_cbs;
9738 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9739 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9740 sizeof(u32) * ioa_cfg->hrrq[i].size,
9741 &ioa_cfg->hrrq[i].host_rrq_dma,
9744 if (!ioa_cfg->hrrq[i].host_rrq) {
9746 dma_free_coherent(&pdev->dev,
9747 sizeof(u32) * ioa_cfg->hrrq[i].size,
9748 ioa_cfg->hrrq[i].host_rrq,
9749 ioa_cfg->hrrq[i].host_rrq_dma);
9750 goto out_ipr_free_cmd_blocks;
9752 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9755 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9756 ioa_cfg->cfg_table_size,
9757 &ioa_cfg->cfg_table_dma,
9760 if (!ioa_cfg->u.cfg_table)
9761 goto out_free_host_rrq;
9763 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9764 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9765 sizeof(struct ipr_hostrcb),
9766 &ioa_cfg->hostrcb_dma[i],
9769 if (!ioa_cfg->hostrcb[i])
9770 goto out_free_hostrcb_dma;
9772 ioa_cfg->hostrcb[i]->hostrcb_dma =
9773 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9774 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9775 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9778 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9779 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9781 if (!ioa_cfg->trace)
9782 goto out_free_hostrcb_dma;
9789 out_free_hostrcb_dma:
9791 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9792 ioa_cfg->hostrcb[i],
9793 ioa_cfg->hostrcb_dma[i]);
9795 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9796 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9798 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9799 dma_free_coherent(&pdev->dev,
9800 sizeof(u32) * ioa_cfg->hrrq[i].size,
9801 ioa_cfg->hrrq[i].host_rrq,
9802 ioa_cfg->hrrq[i].host_rrq_dma);
9804 out_ipr_free_cmd_blocks:
9805 ipr_free_cmd_blks(ioa_cfg);
9807 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9808 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9809 out_free_res_entries:
9810 kfree(ioa_cfg->res_entries);
9815 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9816 * @ioa_cfg: ioa config struct
9821 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9825 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9826 ioa_cfg->bus_attr[i].bus = i;
9827 ioa_cfg->bus_attr[i].qas_enabled = 0;
9828 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9829 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9830 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9832 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9837 * ipr_init_regs - Initialize IOA registers
9838 * @ioa_cfg: ioa config struct
9843 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9845 const struct ipr_interrupt_offsets *p;
9846 struct ipr_interrupts *t;
9849 p = &ioa_cfg->chip_cfg->regs;
9851 base = ioa_cfg->hdw_dma_regs;
9853 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9854 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9855 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9856 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9857 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9858 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9859 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9860 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9861 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9862 t->ioarrin_reg = base + p->ioarrin_reg;
9863 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9864 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9865 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9866 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9867 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9868 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9870 if (ioa_cfg->sis64) {
9871 t->init_feedback_reg = base + p->init_feedback_reg;
9872 t->dump_addr_reg = base + p->dump_addr_reg;
9873 t->dump_data_reg = base + p->dump_data_reg;
9874 t->endian_swap_reg = base + p->endian_swap_reg;
9879 * ipr_init_ioa_cfg - Initialize IOA config struct
9880 * @ioa_cfg: ioa config struct
9881 * @host: scsi host struct
9882 * @pdev: PCI dev struct
9887 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9888 struct Scsi_Host *host, struct pci_dev *pdev)
9892 ioa_cfg->host = host;
9893 ioa_cfg->pdev = pdev;
9894 ioa_cfg->log_level = ipr_log_level;
9895 ioa_cfg->doorbell = IPR_DOORBELL;
9896 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9897 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9898 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9899 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9900 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9901 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9903 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9904 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9905 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
9906 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9907 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9908 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9909 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9910 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9911 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9912 ioa_cfg->sdt_state = INACTIVE;
9914 ipr_initialize_bus_attr(ioa_cfg);
9915 ioa_cfg->max_devs_supported = ipr_max_devs;
9917 if (ioa_cfg->sis64) {
9918 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9919 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9920 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9921 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9922 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9923 + ((sizeof(struct ipr_config_table_entry64)
9924 * ioa_cfg->max_devs_supported)));
9926 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9927 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9928 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9929 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9930 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9931 + ((sizeof(struct ipr_config_table_entry)
9932 * ioa_cfg->max_devs_supported)));
9935 host->max_channel = IPR_VSET_BUS;
9936 host->unique_id = host->host_no;
9937 host->max_cmd_len = IPR_MAX_CDB_LEN;
9938 host->can_queue = ioa_cfg->max_cmds;
9939 pci_set_drvdata(pdev, ioa_cfg);
9941 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9942 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9943 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9944 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9946 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9948 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9953 * ipr_get_chip_info - Find adapter chip information
9954 * @dev_id: PCI device id struct
9957 * ptr to chip information on success / NULL on failure
9959 static const struct ipr_chip_t *
9960 ipr_get_chip_info(const struct pci_device_id *dev_id)
9964 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9965 if (ipr_chip[i].vendor == dev_id->vendor &&
9966 ipr_chip[i].device == dev_id->device)
9967 return &ipr_chip[i];
9972 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9974 * @ioa_cfg: ioa config struct
9979 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9981 struct pci_dev *pdev = ioa_cfg->pdev;
9983 if (pci_channel_offline(pdev)) {
9984 wait_event_timeout(ioa_cfg->eeh_wait_q,
9985 !pci_channel_offline(pdev),
9986 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9987 pci_restore_state(pdev);
9991 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9993 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9995 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9996 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9997 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9998 ioa_cfg->vectors_info[vec_idx].
9999 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
10003 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
10004 struct pci_dev *pdev)
10008 for (i = 1; i < ioa_cfg->nvectors; i++) {
10009 rc = request_irq(pci_irq_vector(pdev, i),
10012 ioa_cfg->vectors_info[i].desc,
10013 &ioa_cfg->hrrq[i]);
10016 free_irq(pci_irq_vector(pdev, i),
10017 &ioa_cfg->hrrq[i]);
10025 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
10026 * @pdev: PCI device struct
10028 * Description: Simply set the msi_received flag to 1 indicating that
10029 * Message Signaled Interrupts are supported.
10032 * 0 on success / non-zero on failure
10034 static irqreturn_t ipr_test_intr(int irq, void *devp)
10036 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
10037 unsigned long lock_flags = 0;
10038 irqreturn_t rc = IRQ_HANDLED;
10040 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
10041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10043 ioa_cfg->msi_received = 1;
10044 wake_up(&ioa_cfg->msi_wait_q);
10046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10051 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
10052 * @pdev: PCI device struct
10054 * Description: This routine sets up and initiates a test interrupt to determine
10055 * if the interrupt is received via the ipr_test_intr() service routine.
10056 * If the tests fails, the driver will fall back to LSI.
10059 * 0 on success / non-zero on failure
10061 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
10064 volatile u32 int_reg;
10065 unsigned long lock_flags = 0;
10066 int irq = pci_irq_vector(pdev, 0);
10070 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10071 init_waitqueue_head(&ioa_cfg->msi_wait_q);
10072 ioa_cfg->msi_received = 0;
10073 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10074 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
10075 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
10076 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10078 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
10080 dev_err(&pdev->dev, "Can not assign irq %d\n", irq);
10082 } else if (ipr_debug)
10083 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
10085 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
10086 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
10087 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
10088 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10089 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10091 if (!ioa_cfg->msi_received) {
10092 /* MSI test failed */
10093 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
10095 } else if (ipr_debug)
10096 dev_info(&pdev->dev, "MSI test succeeded.\n");
10098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10100 free_irq(irq, ioa_cfg);
10107 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
10108 * @pdev: PCI device struct
10109 * @dev_id: PCI device id struct
10112 * 0 on success / non-zero on failure
10114 static int ipr_probe_ioa(struct pci_dev *pdev,
10115 const struct pci_device_id *dev_id)
10117 struct ipr_ioa_cfg *ioa_cfg;
10118 struct Scsi_Host *host;
10119 unsigned long ipr_regs_pci;
10120 void __iomem *ipr_regs;
10121 int rc = PCIBIOS_SUCCESSFUL;
10122 volatile u32 mask, uproc, interrupts;
10123 unsigned long lock_flags, driver_lock_flags;
10124 unsigned int irq_flag;
10128 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
10129 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
10132 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
10137 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
10138 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
10139 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
10141 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
10143 if (!ioa_cfg->ipr_chip) {
10144 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
10145 dev_id->vendor, dev_id->device);
10146 goto out_scsi_host_put;
10149 /* set SIS 32 or SIS 64 */
10150 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
10151 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
10152 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
10153 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10155 if (ipr_transop_timeout)
10156 ioa_cfg->transop_timeout = ipr_transop_timeout;
10157 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10158 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10160 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10162 ioa_cfg->revid = pdev->revision;
10164 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10166 ipr_regs_pci = pci_resource_start(pdev, 0);
10168 rc = pci_request_regions(pdev, IPR_NAME);
10170 dev_err(&pdev->dev,
10171 "Couldn't register memory range of registers\n");
10172 goto out_scsi_host_put;
10175 rc = pci_enable_device(pdev);
10177 if (rc || pci_channel_offline(pdev)) {
10178 if (pci_channel_offline(pdev)) {
10179 ipr_wait_for_pci_err_recovery(ioa_cfg);
10180 rc = pci_enable_device(pdev);
10184 dev_err(&pdev->dev, "Cannot enable adapter\n");
10185 ipr_wait_for_pci_err_recovery(ioa_cfg);
10186 goto out_release_regions;
10190 ipr_regs = pci_ioremap_bar(pdev, 0);
10193 dev_err(&pdev->dev,
10194 "Couldn't map memory range of registers\n");
10199 ioa_cfg->hdw_dma_regs = ipr_regs;
10200 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10201 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10203 ipr_init_regs(ioa_cfg);
10205 if (ioa_cfg->sis64) {
10206 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10208 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10209 rc = dma_set_mask_and_coherent(&pdev->dev,
10213 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10216 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10217 goto cleanup_nomem;
10220 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10221 ioa_cfg->chip_cfg->cache_line_size);
10223 if (rc != PCIBIOS_SUCCESSFUL) {
10224 dev_err(&pdev->dev, "Write of cache line size failed\n");
10225 ipr_wait_for_pci_err_recovery(ioa_cfg);
10227 goto cleanup_nomem;
10230 /* Issue MMIO read to ensure card is not in EEH */
10231 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10232 ipr_wait_for_pci_err_recovery(ioa_cfg);
10234 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10235 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10236 IPR_MAX_MSIX_VECTORS);
10237 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10240 irq_flag = PCI_IRQ_LEGACY;
10241 if (ioa_cfg->ipr_chip->has_msi)
10242 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
10243 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
10245 ipr_wait_for_pci_err_recovery(ioa_cfg);
10246 goto cleanup_nomem;
10248 ioa_cfg->nvectors = rc;
10250 if (!pdev->msi_enabled && !pdev->msix_enabled)
10251 ioa_cfg->clear_isr = 1;
10253 pci_set_master(pdev);
10255 if (pci_channel_offline(pdev)) {
10256 ipr_wait_for_pci_err_recovery(ioa_cfg);
10257 pci_set_master(pdev);
10258 if (pci_channel_offline(pdev)) {
10260 goto out_msi_disable;
10264 if (pdev->msi_enabled || pdev->msix_enabled) {
10265 rc = ipr_test_msi(ioa_cfg, pdev);
10268 dev_info(&pdev->dev,
10269 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors,
10270 pdev->msix_enabled ? "-X" : "");
10273 ipr_wait_for_pci_err_recovery(ioa_cfg);
10274 pci_free_irq_vectors(pdev);
10276 ioa_cfg->nvectors = 1;
10277 ioa_cfg->clear_isr = 1;
10280 goto out_msi_disable;
10284 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10285 (unsigned int)num_online_cpus(),
10286 (unsigned int)IPR_MAX_HRRQ_NUM);
10288 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10289 goto out_msi_disable;
10291 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10292 goto out_msi_disable;
10294 rc = ipr_alloc_mem(ioa_cfg);
10296 dev_err(&pdev->dev,
10297 "Couldn't allocate enough memory for device driver!\n");
10298 goto out_msi_disable;
10301 /* Save away PCI config space for use following IOA reset */
10302 rc = pci_save_state(pdev);
10304 if (rc != PCIBIOS_SUCCESSFUL) {
10305 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10307 goto cleanup_nolog;
10311 * If HRRQ updated interrupt is not masked, or reset alert is set,
10312 * the card is in an unknown state and needs a hard reset
10314 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10315 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10316 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10317 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10318 ioa_cfg->needs_hard_reset = 1;
10319 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10320 ioa_cfg->needs_hard_reset = 1;
10321 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10322 ioa_cfg->ioa_unit_checked = 1;
10324 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10325 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10328 if (pdev->msi_enabled || pdev->msix_enabled) {
10329 name_msi_vectors(ioa_cfg);
10330 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0,
10331 ioa_cfg->vectors_info[0].desc,
10332 &ioa_cfg->hrrq[0]);
10334 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev);
10336 rc = request_irq(pdev->irq, ipr_isr,
10338 IPR_NAME, &ioa_cfg->hrrq[0]);
10341 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10343 goto cleanup_nolog;
10346 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10347 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10348 ioa_cfg->needs_warm_reset = 1;
10349 ioa_cfg->reset = ipr_reset_slot_reset;
10351 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10352 WQ_MEM_RECLAIM, host->host_no);
10354 if (!ioa_cfg->reset_work_q) {
10355 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10360 ioa_cfg->reset = ipr_reset_start_bist;
10362 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10363 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10364 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10371 ipr_free_irqs(ioa_cfg);
10373 ipr_free_mem(ioa_cfg);
10375 ipr_wait_for_pci_err_recovery(ioa_cfg);
10376 pci_free_irq_vectors(pdev);
10380 pci_disable_device(pdev);
10381 out_release_regions:
10382 pci_release_regions(pdev);
10384 scsi_host_put(host);
10389 * ipr_initiate_ioa_bringdown - Bring down an adapter
10390 * @ioa_cfg: ioa config struct
10391 * @shutdown_type: shutdown type
10393 * Description: This function will initiate bringing down the adapter.
10394 * This consists of issuing an IOA shutdown to the adapter
10395 * to flush the cache, and running BIST.
10396 * If the caller needs to wait on the completion of the reset,
10397 * the caller must sleep on the reset_wait_q.
10402 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10403 enum ipr_shutdown_type shutdown_type)
10406 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10407 ioa_cfg->sdt_state = ABORT_DUMP;
10408 ioa_cfg->reset_retries = 0;
10409 ioa_cfg->in_ioa_bringdown = 1;
10410 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10415 * __ipr_remove - Remove a single adapter
10416 * @pdev: pci device struct
10418 * Adapter hot plug remove entry point.
10423 static void __ipr_remove(struct pci_dev *pdev)
10425 unsigned long host_lock_flags = 0;
10426 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10428 unsigned long driver_lock_flags;
10431 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10432 while (ioa_cfg->in_reset_reload) {
10433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10434 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10435 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10438 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10439 spin_lock(&ioa_cfg->hrrq[i]._lock);
10440 ioa_cfg->hrrq[i].removing_ioa = 1;
10441 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10444 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10446 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10447 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10448 flush_work(&ioa_cfg->work_q);
10449 if (ioa_cfg->reset_work_q)
10450 flush_workqueue(ioa_cfg->reset_work_q);
10451 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10452 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10454 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10455 list_del(&ioa_cfg->queue);
10456 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10458 if (ioa_cfg->sdt_state == ABORT_DUMP)
10459 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10460 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10462 ipr_free_all_resources(ioa_cfg);
10468 * ipr_remove - IOA hot plug remove entry point
10469 * @pdev: pci device struct
10471 * Adapter hot plug remove entry point.
10476 static void ipr_remove(struct pci_dev *pdev)
10478 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10482 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10484 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10486 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10487 &ipr_ioa_async_err_log);
10488 scsi_remove_host(ioa_cfg->host);
10490 __ipr_remove(pdev);
10496 * ipr_probe - Adapter hot plug add entry point
10499 * 0 on success / non-zero on failure
10501 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10503 struct ipr_ioa_cfg *ioa_cfg;
10504 unsigned long flags;
10507 rc = ipr_probe_ioa(pdev, dev_id);
10512 ioa_cfg = pci_get_drvdata(pdev);
10513 rc = ipr_probe_ioa_part2(ioa_cfg);
10516 __ipr_remove(pdev);
10520 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10523 __ipr_remove(pdev);
10527 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10531 scsi_remove_host(ioa_cfg->host);
10532 __ipr_remove(pdev);
10536 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
10537 &ipr_ioa_async_err_log);
10540 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10542 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10544 scsi_remove_host(ioa_cfg->host);
10545 __ipr_remove(pdev);
10549 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10553 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10554 &ipr_ioa_async_err_log);
10555 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10557 scsi_remove_host(ioa_cfg->host);
10558 __ipr_remove(pdev);
10561 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10562 ioa_cfg->scan_enabled = 1;
10563 schedule_work(&ioa_cfg->work_q);
10564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10566 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10568 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10569 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10570 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
10571 ioa_cfg->iopoll_weight, ipr_iopoll);
10575 scsi_scan_host(ioa_cfg->host);
10581 * ipr_shutdown - Shutdown handler.
10582 * @pdev: pci device struct
10584 * This function is invoked upon system shutdown/reboot. It will issue
10585 * an adapter shutdown to the adapter to flush the write cache.
10590 static void ipr_shutdown(struct pci_dev *pdev)
10592 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10593 unsigned long lock_flags = 0;
10594 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10598 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10599 ioa_cfg->iopoll_weight = 0;
10600 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10601 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
10604 while (ioa_cfg->in_reset_reload) {
10605 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10606 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10607 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10610 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10611 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10613 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10614 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10615 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10616 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10617 ipr_free_irqs(ioa_cfg);
10618 pci_disable_device(ioa_cfg->pdev);
10622 static struct pci_device_id ipr_pci_table[] = {
10623 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10624 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10625 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10626 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10627 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10628 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10629 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10630 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10631 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10632 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10633 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10634 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10635 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10636 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10637 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10638 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10639 IPR_USE_LONG_TRANSOP_TIMEOUT },
10640 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10641 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10642 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10643 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10644 IPR_USE_LONG_TRANSOP_TIMEOUT },
10645 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10646 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10647 IPR_USE_LONG_TRANSOP_TIMEOUT },
10648 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10649 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10650 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10651 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10652 IPR_USE_LONG_TRANSOP_TIMEOUT},
10653 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10654 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10655 IPR_USE_LONG_TRANSOP_TIMEOUT },
10656 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10657 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10658 IPR_USE_LONG_TRANSOP_TIMEOUT },
10659 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10660 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10661 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10662 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10663 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10664 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10665 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10666 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10667 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10668 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10669 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10670 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10671 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10672 IPR_USE_LONG_TRANSOP_TIMEOUT },
10673 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10674 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10675 IPR_USE_LONG_TRANSOP_TIMEOUT },
10676 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10677 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10678 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10679 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10680 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10681 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10682 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10683 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10684 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10685 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10686 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10687 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10688 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10689 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10690 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10691 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10692 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10693 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10694 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10695 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10696 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10697 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10698 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10699 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10700 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10701 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10702 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10703 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10704 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10705 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10706 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10707 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10708 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10709 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10710 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10711 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10712 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10713 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10714 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10715 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10716 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10717 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10718 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10719 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10720 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10721 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10722 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10723 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10724 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10725 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10726 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10727 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10728 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10729 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 },
10730 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10731 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 },
10734 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10736 static const struct pci_error_handlers ipr_err_handler = {
10737 .error_detected = ipr_pci_error_detected,
10738 .mmio_enabled = ipr_pci_mmio_enabled,
10739 .slot_reset = ipr_pci_slot_reset,
10742 static struct pci_driver ipr_driver = {
10744 .id_table = ipr_pci_table,
10745 .probe = ipr_probe,
10746 .remove = ipr_remove,
10747 .shutdown = ipr_shutdown,
10748 .err_handler = &ipr_err_handler,
10752 * ipr_halt_done - Shutdown prepare completion
10757 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10759 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10763 * ipr_halt - Issue shutdown prepare to all adapters
10766 * NOTIFY_OK on success / NOTIFY_DONE on failure
10768 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10770 struct ipr_cmnd *ipr_cmd;
10771 struct ipr_ioa_cfg *ioa_cfg;
10772 unsigned long flags = 0, driver_lock_flags;
10774 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10775 return NOTIFY_DONE;
10777 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10779 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10780 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10781 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10782 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10787 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10788 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10789 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10790 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10791 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10793 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10796 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10801 static struct notifier_block ipr_notifier = {
10806 * ipr_init - Module entry point
10809 * 0 on success / negative value on failure
10811 static int __init ipr_init(void)
10813 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10814 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10816 register_reboot_notifier(&ipr_notifier);
10817 return pci_register_driver(&ipr_driver);
10821 * ipr_exit - Module unload
10823 * Module unload entry point.
10828 static void __exit ipr_exit(void)
10830 unregister_reboot_notifier(&ipr_notifier);
10831 pci_unregister_driver(&ipr_driver);
10834 module_init(ipr_init);
10835 module_exit(ipr_exit);