1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ipr.c -- driver for IBM Power Linux RAID adapters
5 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
7 * Copyright (C) 2003, 2004 IBM Corporation
13 * This driver is used to control the following SCSI adapters:
15 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
17 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
18 * PCI-X Dual Channel Ultra 320 SCSI Adapter
19 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
20 * Embedded SCSI adapter on p615 and p655 systems
22 * Supported Hardware Features:
23 * - Ultra 320 SCSI controller
24 * - PCI-X host interface
25 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
26 * - Non-Volatile Write Cache
27 * - Supports attachment of non-RAID disks, tape, and optical devices
28 * - RAID Levels 0, 5, 10
30 * - Background Parity Checking
31 * - Background Data Scrubbing
32 * - Ability to increase the capacity of an existing RAID 5 disk array
36 * - Tagged command queuing
37 * - Adapter microcode download
39 * - SCSI device hot plug
44 #include <linux/init.h>
45 #include <linux/types.h>
46 #include <linux/errno.h>
47 #include <linux/kernel.h>
48 #include <linux/slab.h>
49 #include <linux/vmalloc.h>
50 #include <linux/ioport.h>
51 #include <linux/delay.h>
52 #include <linux/pci.h>
53 #include <linux/wait.h>
54 #include <linux/spinlock.h>
55 #include <linux/sched.h>
56 #include <linux/interrupt.h>
57 #include <linux/blkdev.h>
58 #include <linux/firmware.h>
59 #include <linux/module.h>
60 #include <linux/moduleparam.h>
61 #include <linux/libata.h>
62 #include <linux/hdreg.h>
63 #include <linux/reboot.h>
64 #include <linux/stringify.h>
67 #include <asm/processor.h>
68 #include <scsi/scsi.h>
69 #include <scsi/scsi_host.h>
70 #include <scsi/scsi_tcq.h>
71 #include <scsi/scsi_eh.h>
72 #include <scsi/scsi_cmnd.h>
78 static LIST_HEAD(ipr_ioa_head);
79 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
80 static unsigned int ipr_max_speed = 1;
81 static int ipr_testmode = 0;
82 static unsigned int ipr_fastfail = 0;
83 static unsigned int ipr_transop_timeout = 0;
84 static unsigned int ipr_debug = 0;
85 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
86 static unsigned int ipr_dual_ioa_raid = 1;
87 static unsigned int ipr_number_of_msix = 16;
88 static unsigned int ipr_fast_reboot;
89 static DEFINE_SPINLOCK(ipr_driver_lock);
91 /* This table describes the differences between DMA controller chips */
92 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
93 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
96 .cache_line_size = 0x20,
100 .set_interrupt_mask_reg = 0x0022C,
101 .clr_interrupt_mask_reg = 0x00230,
102 .clr_interrupt_mask_reg32 = 0x00230,
103 .sense_interrupt_mask_reg = 0x0022C,
104 .sense_interrupt_mask_reg32 = 0x0022C,
105 .clr_interrupt_reg = 0x00228,
106 .clr_interrupt_reg32 = 0x00228,
107 .sense_interrupt_reg = 0x00224,
108 .sense_interrupt_reg32 = 0x00224,
109 .ioarrin_reg = 0x00404,
110 .sense_uproc_interrupt_reg = 0x00214,
111 .sense_uproc_interrupt_reg32 = 0x00214,
112 .set_uproc_interrupt_reg = 0x00214,
113 .set_uproc_interrupt_reg32 = 0x00214,
114 .clr_uproc_interrupt_reg = 0x00218,
115 .clr_uproc_interrupt_reg32 = 0x00218
118 { /* Snipe and Scamp */
121 .cache_line_size = 0x20,
125 .set_interrupt_mask_reg = 0x00288,
126 .clr_interrupt_mask_reg = 0x0028C,
127 .clr_interrupt_mask_reg32 = 0x0028C,
128 .sense_interrupt_mask_reg = 0x00288,
129 .sense_interrupt_mask_reg32 = 0x00288,
130 .clr_interrupt_reg = 0x00284,
131 .clr_interrupt_reg32 = 0x00284,
132 .sense_interrupt_reg = 0x00280,
133 .sense_interrupt_reg32 = 0x00280,
134 .ioarrin_reg = 0x00504,
135 .sense_uproc_interrupt_reg = 0x00290,
136 .sense_uproc_interrupt_reg32 = 0x00290,
137 .set_uproc_interrupt_reg = 0x00290,
138 .set_uproc_interrupt_reg32 = 0x00290,
139 .clr_uproc_interrupt_reg = 0x00294,
140 .clr_uproc_interrupt_reg32 = 0x00294
146 .cache_line_size = 0x20,
150 .set_interrupt_mask_reg = 0x00010,
151 .clr_interrupt_mask_reg = 0x00018,
152 .clr_interrupt_mask_reg32 = 0x0001C,
153 .sense_interrupt_mask_reg = 0x00010,
154 .sense_interrupt_mask_reg32 = 0x00014,
155 .clr_interrupt_reg = 0x00008,
156 .clr_interrupt_reg32 = 0x0000C,
157 .sense_interrupt_reg = 0x00000,
158 .sense_interrupt_reg32 = 0x00004,
159 .ioarrin_reg = 0x00070,
160 .sense_uproc_interrupt_reg = 0x00020,
161 .sense_uproc_interrupt_reg32 = 0x00024,
162 .set_uproc_interrupt_reg = 0x00020,
163 .set_uproc_interrupt_reg32 = 0x00024,
164 .clr_uproc_interrupt_reg = 0x00028,
165 .clr_uproc_interrupt_reg32 = 0x0002C,
166 .init_feedback_reg = 0x0005C,
167 .dump_addr_reg = 0x00064,
168 .dump_data_reg = 0x00068,
169 .endian_swap_reg = 0x00084
174 static const struct ipr_chip_t ipr_chip[] = {
175 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
176 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
177 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
181 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
187 static int ipr_max_bus_speeds[] = {
188 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
191 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
192 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
193 module_param_named(max_speed, ipr_max_speed, uint, 0);
194 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
195 module_param_named(log_level, ipr_log_level, uint, 0);
196 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
197 module_param_named(testmode, ipr_testmode, int, 0);
198 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
199 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
200 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
201 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
202 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
203 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
204 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
205 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
206 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
207 module_param_named(max_devs, ipr_max_devs, int, 0);
208 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
209 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
210 module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
211 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)");
212 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
213 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
214 MODULE_LICENSE("GPL");
215 MODULE_VERSION(IPR_DRIVER_VERSION);
217 /* A constant array of IOASCs/URCs/Error Messages */
219 struct ipr_error_table_t ipr_error_table[] = {
220 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
221 "8155: An unknown error was received"},
223 "Soft underlength error"},
225 "Command to be cancelled not found"},
227 "Qualified success"},
228 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
229 "FFFE: Soft device bus error recovered by the IOA"},
230 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
231 "4101: Soft device bus fabric error"},
232 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
233 "FFFC: Logical block guard error recovered by the device"},
234 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
235 "FFFC: Logical block reference tag error recovered by the device"},
236 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
237 "4171: Recovered scatter list tag / sequence number error"},
238 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
239 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
240 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
241 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
242 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFD: Recovered logical block reference tag error detected by the IOA"},
244 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFFD: Logical block guard error recovered by the IOA"},
246 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
247 "FFF9: Device sector reassign successful"},
248 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FFF7: Media error recovered by device rewrite procedures"},
250 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
251 "7001: IOA sector reassignment successful"},
252 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFF9: Soft media error. Sector reassignment recommended"},
254 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
255 "FFF7: Media error recovered by IOA rewrite procedures"},
256 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
257 "FF3D: Soft PCI bus error recovered by the IOA"},
258 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
259 "FFF6: Device hardware error recovered by the IOA"},
260 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
261 "FFF6: Device hardware error recovered by the device"},
262 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
263 "FF3D: Soft IOA error recovered by the IOA"},
264 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
265 "FFFA: Undefined device response recovered by the IOA"},
266 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
267 "FFF6: Device bus error, message or command phase"},
268 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
269 "FFFE: Task Management Function failed"},
270 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
271 "FFF6: Failure prediction threshold exceeded"},
272 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
273 "8009: Impending cache battery pack failure"},
275 "Logical Unit in process of becoming ready"},
277 "Initializing command required"},
279 "34FF: Disk device format in progress"},
281 "Logical unit not accessible, target port in unavailable state"},
282 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
283 "9070: IOA requested reset"},
285 "Synchronization required"},
287 "IOA microcode download required"},
289 "Device bus connection is prohibited by host"},
291 "No ready, IOA shutdown"},
293 "Not ready, IOA has been shutdown"},
294 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
295 "3020: Storage subsystem configuration error"},
297 "FFF5: Medium error, data unreadable, recommend reassign"},
299 "7000: Medium error, data unreadable, do not reassign"},
300 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
301 "FFF3: Disk media format bad"},
302 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
303 "3002: Addressed device failed to respond to selection"},
304 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
305 "3100: Device bus error"},
306 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
307 "3109: IOA timed out a device command"},
309 "3120: SCSI bus is not operational"},
310 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
311 "4100: Hard device bus fabric error"},
312 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
313 "310C: Logical block guard error detected by the device"},
314 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
315 "310C: Logical block reference tag error detected by the device"},
316 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
317 "4170: Scatter list tag / sequence number error"},
318 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
319 "8150: Logical block CRC error on IOA to Host transfer"},
320 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
321 "4170: Logical block sequence number error on IOA to Host transfer"},
322 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
323 "310D: Logical block reference tag error detected by the IOA"},
324 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
325 "310D: Logical block guard error detected by the IOA"},
326 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
327 "9000: IOA reserved area data check"},
328 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
329 "9001: IOA reserved area invalid data pattern"},
330 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
331 "9002: IOA reserved area LRC error"},
332 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
333 "Hardware Error, IOA metadata access error"},
334 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
335 "102E: Out of alternate sectors for disk storage"},
336 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
337 "FFF4: Data transfer underlength error"},
338 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
339 "FFF4: Data transfer overlength error"},
340 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
341 "3400: Logical unit failure"},
342 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
343 "FFF4: Device microcode is corrupt"},
344 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
345 "8150: PCI bus error"},
347 "Unsupported device bus message received"},
348 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
349 "FFF4: Disk device problem"},
350 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
351 "8150: Permanent IOA failure"},
352 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
353 "3010: Disk device returned wrong response to IOA"},
354 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
355 "8151: IOA microcode error"},
357 "Device bus status error"},
358 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
359 "8157: IOA error requiring IOA reset to recover"},
361 "ATA device status error"},
363 "Message reject received from the device"},
364 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
365 "8008: A permanent cache battery pack failure occurred"},
366 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
367 "9090: Disk unit has been modified after the last known status"},
368 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
369 "9081: IOA detected device error"},
370 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
371 "9082: IOA detected device error"},
372 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
373 "3110: Device bus error, message or command phase"},
374 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
375 "3110: SAS Command / Task Management Function failed"},
376 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
377 "9091: Incorrect hardware configuration change has been detected"},
378 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
379 "9073: Invalid multi-adapter configuration"},
380 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
381 "4010: Incorrect connection between cascaded expanders"},
382 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
383 "4020: Connections exceed IOA design limits"},
384 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
385 "4030: Incorrect multipath connection"},
386 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
387 "4110: Unsupported enclosure function"},
388 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
389 "4120: SAS cable VPD cannot be read"},
390 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
391 "FFF4: Command to logical unit failed"},
393 "Illegal request, invalid request type or request packet"},
395 "Illegal request, invalid resource handle"},
397 "Illegal request, commands not allowed to this device"},
399 "Illegal request, command not allowed to a secondary adapter"},
401 "Illegal request, command not allowed to a non-optimized resource"},
403 "Illegal request, invalid field in parameter list"},
405 "Illegal request, parameter not supported"},
407 "Illegal request, parameter value invalid"},
409 "Illegal request, command sequence error"},
411 "Illegal request, dual adapter support not enabled"},
413 "Illegal request, another cable connector was physically disabled"},
415 "Illegal request, inconsistent group id/group count"},
416 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
417 "9031: Array protection temporarily suspended, protection resuming"},
418 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
419 "9040: Array protection temporarily suspended, protection resuming"},
420 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
421 "4080: IOA exceeded maximum operating temperature"},
422 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
423 "4085: Service required"},
424 {0x060B8100, 0, IPR_DEFAULT_LOG_LEVEL,
425 "4086: SAS Adapter Hardware Configuration Error"},
426 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
427 "3140: Device bus not ready to ready transition"},
428 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
429 "FFFB: SCSI bus was reset"},
431 "FFFE: SCSI bus transition to single ended"},
433 "FFFE: SCSI bus transition to LVD"},
434 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
435 "FFFB: SCSI bus was reset by another initiator"},
436 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
437 "3029: A device replacement has occurred"},
438 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
439 "4102: Device bus fabric performance degradation"},
440 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
441 "9051: IOA cache data exists for a missing or failed device"},
442 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
443 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
444 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
445 "9025: Disk unit is not supported at its physical location"},
446 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
447 "3020: IOA detected a SCSI bus configuration error"},
448 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
449 "3150: SCSI bus configuration error"},
450 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
451 "9074: Asymmetric advanced function disk configuration"},
452 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
453 "4040: Incomplete multipath connection between IOA and enclosure"},
454 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
455 "4041: Incomplete multipath connection between enclosure and device"},
456 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
457 "9075: Incomplete multipath connection between IOA and remote IOA"},
458 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
459 "9076: Configuration error, missing remote IOA"},
460 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
461 "4050: Enclosure does not support a required multipath function"},
462 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
463 "4121: Configuration error, required cable is missing"},
464 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
465 "4122: Cable is not plugged into the correct location on remote IOA"},
466 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
467 "4123: Configuration error, invalid cable vital product data"},
468 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
469 "4124: Configuration error, both cable ends are plugged into the same IOA"},
470 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
471 "4070: Logically bad block written on device"},
472 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
473 "9041: Array protection temporarily suspended"},
474 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
475 "9042: Corrupt array parity detected on specified device"},
476 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
477 "9030: Array no longer protected due to missing or failed disk unit"},
478 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
479 "9071: Link operational transition"},
480 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
481 "9072: Link not operational transition"},
482 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
483 "9032: Array exposed but still protected"},
484 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
485 "70DD: Device forced failed by disrupt device command"},
486 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
487 "4061: Multipath redundancy level got better"},
488 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
489 "4060: Multipath redundancy level got worse"},
490 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
491 "9083: Device raw mode enabled"},
492 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
493 "9084: Device raw mode disabled"},
495 "Failure due to other device"},
496 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
497 "9008: IOA does not support functions expected by devices"},
498 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
499 "9010: Cache data associated with attached devices cannot be found"},
500 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
501 "9011: Cache data belongs to devices other than those attached"},
502 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
503 "9020: Array missing 2 or more devices with only 1 device present"},
504 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
505 "9021: Array missing 2 or more devices with 2 or more devices present"},
506 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
507 "9022: Exposed array is missing a required device"},
508 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
509 "9023: Array member(s) not at required physical locations"},
510 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
511 "9024: Array not functional due to present hardware configuration"},
512 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
513 "9026: Array not functional due to present hardware configuration"},
514 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
515 "9027: Array is missing a device and parity is out of sync"},
516 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
517 "9028: Maximum number of arrays already exist"},
518 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
519 "9050: Required cache data cannot be located for a disk unit"},
520 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
521 "9052: Cache data exists for a device that has been modified"},
522 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
523 "9054: IOA resources not available due to previous problems"},
524 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
525 "9092: Disk unit requires initialization before use"},
526 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
527 "9029: Incorrect hardware configuration change has been detected"},
528 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
529 "9060: One or more disk pairs are missing from an array"},
530 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
531 "9061: One or more disks are missing from an array"},
532 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
533 "9062: One or more disks are missing from an array"},
534 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
535 "9063: Maximum number of functional arrays has been exceeded"},
537 "Data protect, other volume set problem"},
539 "Aborted command, invalid descriptor"},
541 "Target operating conditions have changed, dual adapter takeover"},
543 "Aborted command, medium removal prevented"},
545 "Command terminated by host"},
547 "Aborted command, command terminated by host"}
550 static const struct ipr_ses_table_entry ipr_ses_table[] = {
551 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
552 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
553 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
554 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
555 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
556 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
557 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
558 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
559 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
560 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
561 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
562 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
563 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
567 * Function Prototypes
569 static int ipr_reset_alert(struct ipr_cmnd *);
570 static void ipr_process_ccn(struct ipr_cmnd *);
571 static void ipr_process_error(struct ipr_cmnd *);
572 static void ipr_reset_ioa_job(struct ipr_cmnd *);
573 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
574 enum ipr_shutdown_type);
576 #ifdef CONFIG_SCSI_IPR_TRACE
578 * ipr_trc_hook - Add a trace entry to the driver trace
579 * @ipr_cmd: ipr command struct
581 * @add_data: additional data
586 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
587 u8 type, u32 add_data)
589 struct ipr_trace_entry *trace_entry;
590 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
591 unsigned int trace_index;
593 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
594 trace_entry = &ioa_cfg->trace[trace_index];
595 trace_entry->time = jiffies;
596 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
597 trace_entry->type = type;
598 if (ipr_cmd->ioa_cfg->sis64)
599 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
601 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
602 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
603 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
604 trace_entry->u.add_data = add_data;
608 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
612 * ipr_lock_and_done - Acquire lock and complete command
613 * @ipr_cmd: ipr command struct
618 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
620 unsigned long lock_flags;
621 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
623 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
624 ipr_cmd->done(ipr_cmd);
625 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
629 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
630 * @ipr_cmd: ipr command struct
635 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
637 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
638 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
639 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
640 dma_addr_t dma_addr = ipr_cmd->dma_addr;
643 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
644 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
645 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
646 ioarcb->data_transfer_length = 0;
647 ioarcb->read_data_transfer_length = 0;
648 ioarcb->ioadl_len = 0;
649 ioarcb->read_ioadl_len = 0;
651 if (ipr_cmd->ioa_cfg->sis64) {
652 ioarcb->u.sis64_addr_data.data_ioadl_addr =
653 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
654 ioasa64->u.gata.status = 0;
656 ioarcb->write_ioadl_addr =
657 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
658 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
659 ioasa->u.gata.status = 0;
662 ioasa->hdr.ioasc = 0;
663 ioasa->hdr.residual_data_len = 0;
664 ipr_cmd->scsi_cmd = NULL;
666 ipr_cmd->sense_buffer[0] = 0;
667 ipr_cmd->dma_use_sg = 0;
671 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
672 * @ipr_cmd: ipr command struct
673 * @fast_done: fast done function call-back
678 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
679 void (*fast_done) (struct ipr_cmnd *))
681 ipr_reinit_ipr_cmnd(ipr_cmd);
682 ipr_cmd->u.scratch = 0;
683 ipr_cmd->sibling = NULL;
684 ipr_cmd->eh_comp = NULL;
685 ipr_cmd->fast_done = fast_done;
686 timer_setup(&ipr_cmd->timer, NULL, 0);
690 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
694 * pointer to ipr command struct
697 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
699 struct ipr_cmnd *ipr_cmd = NULL;
701 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
702 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
703 struct ipr_cmnd, queue);
704 list_del(&ipr_cmd->queue);
712 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
713 * @ioa_cfg: ioa config struct
716 * pointer to ipr command struct
719 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
721 struct ipr_cmnd *ipr_cmd =
722 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
723 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
728 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
729 * @ioa_cfg: ioa config struct
730 * @clr_ints: interrupts to clear
732 * This function masks all interrupts on the adapter, then clears the
733 * interrupts specified in the mask
738 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
743 /* Stop new interrupts */
744 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
745 spin_lock(&ioa_cfg->hrrq[i]._lock);
746 ioa_cfg->hrrq[i].allow_interrupts = 0;
747 spin_unlock(&ioa_cfg->hrrq[i]._lock);
750 /* Set interrupt mask to stop all new interrupts */
752 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
754 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
756 /* Clear any pending interrupts */
758 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
759 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
760 readl(ioa_cfg->regs.sense_interrupt_reg);
764 * ipr_save_pcix_cmd_reg - Save PCI-X command register
765 * @ioa_cfg: ioa config struct
768 * 0 on success / -EIO on failure
770 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
772 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
774 if (pcix_cmd_reg == 0)
777 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
778 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
779 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
783 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
788 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
789 * @ioa_cfg: ioa config struct
792 * 0 on success / -EIO on failure
794 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
796 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
799 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
800 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
801 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
810 * __ipr_sata_eh_done - done function for aborted SATA commands
811 * @ipr_cmd: ipr command struct
813 * This function is invoked for ops generated to SATA
814 * devices which are being aborted.
819 static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
821 struct ata_queued_cmd *qc = ipr_cmd->qc;
822 struct ipr_sata_port *sata_port = qc->ap->private_data;
824 qc->err_mask |= AC_ERR_OTHER;
825 sata_port->ioasa.status |= ATA_BUSY;
827 if (ipr_cmd->eh_comp)
828 complete(ipr_cmd->eh_comp);
829 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
833 * ipr_sata_eh_done - done function for aborted SATA commands
834 * @ipr_cmd: ipr command struct
836 * This function is invoked for ops generated to SATA
837 * devices which are being aborted.
842 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
844 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
845 unsigned long hrrq_flags;
847 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
848 __ipr_sata_eh_done(ipr_cmd);
849 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
853 * __ipr_scsi_eh_done - mid-layer done function for aborted ops
854 * @ipr_cmd: ipr command struct
856 * This function is invoked by the interrupt handler for
857 * ops generated by the SCSI mid-layer which are being aborted.
862 static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
864 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
866 scsi_cmd->result |= (DID_ERROR << 16);
868 scsi_dma_unmap(ipr_cmd->scsi_cmd);
870 if (ipr_cmd->eh_comp)
871 complete(ipr_cmd->eh_comp);
872 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
876 * ipr_scsi_eh_done - mid-layer done function for aborted ops
877 * @ipr_cmd: ipr command struct
879 * This function is invoked by the interrupt handler for
880 * ops generated by the SCSI mid-layer which are being aborted.
885 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
887 unsigned long hrrq_flags;
888 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
890 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
891 __ipr_scsi_eh_done(ipr_cmd);
892 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
896 * ipr_fail_all_ops - Fails all outstanding ops.
897 * @ioa_cfg: ioa config struct
899 * This function fails all outstanding ops.
904 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
906 struct ipr_cmnd *ipr_cmd, *temp;
907 struct ipr_hrr_queue *hrrq;
910 for_each_hrrq(hrrq, ioa_cfg) {
911 spin_lock(&hrrq->_lock);
912 list_for_each_entry_safe(ipr_cmd,
913 temp, &hrrq->hrrq_pending_q, queue) {
914 list_del(&ipr_cmd->queue);
916 ipr_cmd->s.ioasa.hdr.ioasc =
917 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
918 ipr_cmd->s.ioasa.hdr.ilid =
919 cpu_to_be32(IPR_DRIVER_ILID);
921 if (ipr_cmd->scsi_cmd)
922 ipr_cmd->done = __ipr_scsi_eh_done;
923 else if (ipr_cmd->qc)
924 ipr_cmd->done = __ipr_sata_eh_done;
926 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
927 IPR_IOASC_IOA_WAS_RESET);
928 del_timer(&ipr_cmd->timer);
929 ipr_cmd->done(ipr_cmd);
931 spin_unlock(&hrrq->_lock);
937 * ipr_send_command - Send driver initiated requests.
938 * @ipr_cmd: ipr command struct
940 * This function sends a command to the adapter using the correct write call.
941 * In the case of sis64, calculate the ioarcb size required. Then or in the
947 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
949 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
950 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
952 if (ioa_cfg->sis64) {
953 /* The default size is 256 bytes */
954 send_dma_addr |= 0x1;
956 /* If the number of ioadls * size of ioadl > 128 bytes,
957 then use a 512 byte ioarcb */
958 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
959 send_dma_addr |= 0x4;
960 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
962 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
966 * ipr_do_req - Send driver initiated requests.
967 * @ipr_cmd: ipr command struct
968 * @done: done function
969 * @timeout_func: timeout function
970 * @timeout: timeout value
972 * This function sends the specified command to the adapter with the
973 * timeout given. The done function is invoked on command completion.
978 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
979 void (*done) (struct ipr_cmnd *),
980 void (*timeout_func) (struct timer_list *), u32 timeout)
982 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
984 ipr_cmd->done = done;
986 ipr_cmd->timer.expires = jiffies + timeout;
987 ipr_cmd->timer.function = timeout_func;
989 add_timer(&ipr_cmd->timer);
991 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
993 ipr_send_command(ipr_cmd);
997 * ipr_internal_cmd_done - Op done function for an internally generated op.
998 * @ipr_cmd: ipr command struct
1000 * This function is the op done function for an internally generated,
1001 * blocking op. It simply wakes the sleeping thread.
1006 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
1008 if (ipr_cmd->sibling)
1009 ipr_cmd->sibling = NULL;
1011 complete(&ipr_cmd->completion);
1015 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
1016 * @ipr_cmd: ipr command struct
1017 * @dma_addr: dma address
1018 * @len: transfer length
1019 * @flags: ioadl flag value
1021 * This function initializes an ioadl in the case where there is only a single
1027 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1030 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1031 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1033 ipr_cmd->dma_use_sg = 1;
1035 if (ipr_cmd->ioa_cfg->sis64) {
1036 ioadl64->flags = cpu_to_be32(flags);
1037 ioadl64->data_len = cpu_to_be32(len);
1038 ioadl64->address = cpu_to_be64(dma_addr);
1040 ipr_cmd->ioarcb.ioadl_len =
1041 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1042 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1044 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1045 ioadl->address = cpu_to_be32(dma_addr);
1047 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1048 ipr_cmd->ioarcb.read_ioadl_len =
1049 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1050 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1052 ipr_cmd->ioarcb.ioadl_len =
1053 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1054 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1060 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1061 * @ipr_cmd: ipr command struct
1062 * @timeout_func: function to invoke if command times out
1068 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1069 void (*timeout_func) (struct timer_list *),
1072 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1074 init_completion(&ipr_cmd->completion);
1075 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1077 spin_unlock_irq(ioa_cfg->host->host_lock);
1078 wait_for_completion(&ipr_cmd->completion);
1079 spin_lock_irq(ioa_cfg->host->host_lock);
1082 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1086 if (ioa_cfg->hrrq_num == 1)
1089 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1090 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1096 * ipr_send_hcam - Send an HCAM to the adapter.
1097 * @ioa_cfg: ioa config struct
1099 * @hostrcb: hostrcb struct
1101 * This function will send a Host Controlled Async command to the adapter.
1102 * If HCAMs are currently not allowed to be issued to the adapter, it will
1103 * place the hostrcb on the free queue.
1108 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1109 struct ipr_hostrcb *hostrcb)
1111 struct ipr_cmnd *ipr_cmd;
1112 struct ipr_ioarcb *ioarcb;
1114 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1115 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1116 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1117 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1119 ipr_cmd->u.hostrcb = hostrcb;
1120 ioarcb = &ipr_cmd->ioarcb;
1122 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1123 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1124 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1125 ioarcb->cmd_pkt.cdb[1] = type;
1126 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1127 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1129 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1130 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1132 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1133 ipr_cmd->done = ipr_process_ccn;
1135 ipr_cmd->done = ipr_process_error;
1137 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1139 ipr_send_command(ipr_cmd);
1141 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1146 * ipr_update_ata_class - Update the ata class in the resource entry
1147 * @res: resource entry struct
1148 * @proto: cfgte device bus protocol value
1153 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1156 case IPR_PROTO_SATA:
1157 case IPR_PROTO_SAS_STP:
1158 res->ata_class = ATA_DEV_ATA;
1160 case IPR_PROTO_SATA_ATAPI:
1161 case IPR_PROTO_SAS_STP_ATAPI:
1162 res->ata_class = ATA_DEV_ATAPI;
1165 res->ata_class = ATA_DEV_UNKNOWN;
1171 * ipr_init_res_entry - Initialize a resource entry struct.
1172 * @res: resource entry struct
1173 * @cfgtew: config table entry wrapper struct
1178 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1179 struct ipr_config_table_entry_wrapper *cfgtew)
1183 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1184 struct ipr_resource_entry *gscsi_res = NULL;
1186 res->needs_sync_complete = 0;
1189 res->del_from_ml = 0;
1190 res->resetting_device = 0;
1191 res->reset_occurred = 0;
1193 res->sata_port = NULL;
1195 if (ioa_cfg->sis64) {
1196 proto = cfgtew->u.cfgte64->proto;
1197 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1198 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1199 res->qmodel = IPR_QUEUEING_MODEL64(res);
1200 res->type = cfgtew->u.cfgte64->res_type;
1202 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1203 sizeof(res->res_path));
1206 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1207 sizeof(res->dev_lun.scsi_lun));
1208 res->lun = scsilun_to_int(&res->dev_lun);
1210 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1211 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1212 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1214 res->target = gscsi_res->target;
1219 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1220 ioa_cfg->max_devs_supported);
1221 set_bit(res->target, ioa_cfg->target_ids);
1223 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1224 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1226 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1227 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1228 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1229 ioa_cfg->max_devs_supported);
1230 set_bit(res->target, ioa_cfg->array_ids);
1231 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1232 res->bus = IPR_VSET_VIRTUAL_BUS;
1233 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1234 ioa_cfg->max_devs_supported);
1235 set_bit(res->target, ioa_cfg->vset_ids);
1237 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1238 ioa_cfg->max_devs_supported);
1239 set_bit(res->target, ioa_cfg->target_ids);
1242 proto = cfgtew->u.cfgte->proto;
1243 res->qmodel = IPR_QUEUEING_MODEL(res);
1244 res->flags = cfgtew->u.cfgte->flags;
1245 if (res->flags & IPR_IS_IOA_RESOURCE)
1246 res->type = IPR_RES_TYPE_IOAFP;
1248 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1250 res->bus = cfgtew->u.cfgte->res_addr.bus;
1251 res->target = cfgtew->u.cfgte->res_addr.target;
1252 res->lun = cfgtew->u.cfgte->res_addr.lun;
1253 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1256 ipr_update_ata_class(res, proto);
1260 * ipr_is_same_device - Determine if two devices are the same.
1261 * @res: resource entry struct
1262 * @cfgtew: config table entry wrapper struct
1265 * 1 if the devices are the same / 0 otherwise
1267 static int ipr_is_same_device(struct ipr_resource_entry *res,
1268 struct ipr_config_table_entry_wrapper *cfgtew)
1270 if (res->ioa_cfg->sis64) {
1271 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1272 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1273 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1274 sizeof(cfgtew->u.cfgte64->lun))) {
1278 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1279 res->target == cfgtew->u.cfgte->res_addr.target &&
1280 res->lun == cfgtew->u.cfgte->res_addr.lun)
1288 * __ipr_format_res_path - Format the resource path for printing.
1289 * @res_path: resource path
1291 * @len: length of buffer provided
1296 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1302 p += scnprintf(p, buffer + len - p, "%02X", res_path[0]);
1303 for (i = 1; res_path[i] != 0xff && i < IPR_RES_PATH_BYTES; i++)
1304 p += scnprintf(p, buffer + len - p, "-%02X", res_path[i]);
1310 * ipr_format_res_path - Format the resource path for printing.
1311 * @ioa_cfg: ioa config struct
1312 * @res_path: resource path
1314 * @len: length of buffer provided
1319 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1320 u8 *res_path, char *buffer, int len)
1325 p += scnprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1326 __ipr_format_res_path(res_path, p, len - (p - buffer));
1331 * ipr_update_res_entry - Update the resource entry.
1332 * @res: resource entry struct
1333 * @cfgtew: config table entry wrapper struct
1338 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1339 struct ipr_config_table_entry_wrapper *cfgtew)
1341 char buffer[IPR_MAX_RES_PATH_LENGTH];
1345 if (res->ioa_cfg->sis64) {
1346 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1347 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1348 res->type = cfgtew->u.cfgte64->res_type;
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1353 res->qmodel = IPR_QUEUEING_MODEL64(res);
1354 proto = cfgtew->u.cfgte64->proto;
1355 res->res_handle = cfgtew->u.cfgte64->res_handle;
1356 res->dev_id = cfgtew->u.cfgte64->dev_id;
1358 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1359 sizeof(res->dev_lun.scsi_lun));
1361 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1362 sizeof(res->res_path))) {
1363 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1364 sizeof(res->res_path));
1368 if (res->sdev && new_path)
1369 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1370 ipr_format_res_path(res->ioa_cfg,
1371 res->res_path, buffer, sizeof(buffer)));
1373 res->flags = cfgtew->u.cfgte->flags;
1374 if (res->flags & IPR_IS_IOA_RESOURCE)
1375 res->type = IPR_RES_TYPE_IOAFP;
1377 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1379 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1380 sizeof(struct ipr_std_inq_data));
1382 res->qmodel = IPR_QUEUEING_MODEL(res);
1383 proto = cfgtew->u.cfgte->proto;
1384 res->res_handle = cfgtew->u.cfgte->res_handle;
1387 ipr_update_ata_class(res, proto);
1391 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1393 * @res: resource entry struct
1398 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1400 struct ipr_resource_entry *gscsi_res = NULL;
1401 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1403 if (!ioa_cfg->sis64)
1406 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1407 clear_bit(res->target, ioa_cfg->array_ids);
1408 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1409 clear_bit(res->target, ioa_cfg->vset_ids);
1410 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1411 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1412 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1414 clear_bit(res->target, ioa_cfg->target_ids);
1416 } else if (res->bus == 0)
1417 clear_bit(res->target, ioa_cfg->target_ids);
1421 * ipr_handle_config_change - Handle a config change from the adapter
1422 * @ioa_cfg: ioa config struct
1428 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1429 struct ipr_hostrcb *hostrcb)
1431 struct ipr_resource_entry *res = NULL;
1432 struct ipr_config_table_entry_wrapper cfgtew;
1433 __be32 cc_res_handle;
1437 if (ioa_cfg->sis64) {
1438 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1439 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1441 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1442 cc_res_handle = cfgtew.u.cfgte->res_handle;
1445 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1446 if (res->res_handle == cc_res_handle) {
1453 if (list_empty(&ioa_cfg->free_res_q)) {
1454 ipr_send_hcam(ioa_cfg,
1455 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1460 res = list_entry(ioa_cfg->free_res_q.next,
1461 struct ipr_resource_entry, queue);
1463 list_del(&res->queue);
1464 ipr_init_res_entry(res, &cfgtew);
1465 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1468 ipr_update_res_entry(res, &cfgtew);
1470 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1472 res->del_from_ml = 1;
1473 res->res_handle = IPR_INVALID_RES_HANDLE;
1474 schedule_work(&ioa_cfg->work_q);
1476 ipr_clear_res_target(res);
1477 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1479 } else if (!res->sdev || res->del_from_ml) {
1481 schedule_work(&ioa_cfg->work_q);
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1488 * ipr_process_ccn - Op done function for a CCN.
1489 * @ipr_cmd: ipr command struct
1491 * This function is the op done function for a configuration
1492 * change notification host controlled async from the adapter.
1497 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1499 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1500 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1501 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1503 list_del_init(&hostrcb->queue);
1504 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1507 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1508 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1509 dev_err(&ioa_cfg->pdev->dev,
1510 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1512 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1514 ipr_handle_config_change(ioa_cfg, hostrcb);
1519 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1520 * @i: index into buffer
1521 * @buf: string to modify
1523 * This function will strip all trailing whitespace, pad the end
1524 * of the string with a single space, and NULL terminate the string.
1527 * new length of string
1529 static int strip_and_pad_whitespace(int i, char *buf)
1531 while (i && buf[i] == ' ')
1539 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1540 * @prefix: string to print at start of printk
1541 * @hostrcb: hostrcb pointer
1542 * @vpd: vendor/product id/sn struct
1547 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1548 struct ipr_vpd *vpd)
1550 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1553 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1554 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1556 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1557 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1559 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1560 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1562 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1566 * ipr_log_vpd - Log the passed VPD to the error log.
1567 * @vpd: vendor/product id/sn struct
1572 static void ipr_log_vpd(struct ipr_vpd *vpd)
1574 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1575 + IPR_SERIAL_NUM_LEN];
1577 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1578 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1580 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1581 ipr_err("Vendor/Product ID: %s\n", buffer);
1583 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1584 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1585 ipr_err(" Serial Number: %s\n", buffer);
1589 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1590 * @prefix: string to print at start of printk
1591 * @hostrcb: hostrcb pointer
1592 * @vpd: vendor/product id/sn/wwn struct
1597 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1598 struct ipr_ext_vpd *vpd)
1600 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1601 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1602 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1606 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1607 * @vpd: vendor/product id/sn/wwn struct
1612 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1614 ipr_log_vpd(&vpd->vpd);
1615 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1616 be32_to_cpu(vpd->wwid[1]));
1620 * ipr_log_enhanced_cache_error - Log a cache error.
1621 * @ioa_cfg: ioa config struct
1622 * @hostrcb: hostrcb struct
1627 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1628 struct ipr_hostrcb *hostrcb)
1630 struct ipr_hostrcb_type_12_error *error;
1633 error = &hostrcb->hcam.u.error64.u.type_12_error;
1635 error = &hostrcb->hcam.u.error.u.type_12_error;
1637 ipr_err("-----Current Configuration-----\n");
1638 ipr_err("Cache Directory Card Information:\n");
1639 ipr_log_ext_vpd(&error->ioa_vpd);
1640 ipr_err("Adapter Card Information:\n");
1641 ipr_log_ext_vpd(&error->cfc_vpd);
1643 ipr_err("-----Expected Configuration-----\n");
1644 ipr_err("Cache Directory Card Information:\n");
1645 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1646 ipr_err("Adapter Card Information:\n");
1647 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1649 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1650 be32_to_cpu(error->ioa_data[0]),
1651 be32_to_cpu(error->ioa_data[1]),
1652 be32_to_cpu(error->ioa_data[2]));
1656 * ipr_log_cache_error - Log a cache error.
1657 * @ioa_cfg: ioa config struct
1658 * @hostrcb: hostrcb struct
1663 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1664 struct ipr_hostrcb *hostrcb)
1666 struct ipr_hostrcb_type_02_error *error =
1667 &hostrcb->hcam.u.error.u.type_02_error;
1669 ipr_err("-----Current Configuration-----\n");
1670 ipr_err("Cache Directory Card Information:\n");
1671 ipr_log_vpd(&error->ioa_vpd);
1672 ipr_err("Adapter Card Information:\n");
1673 ipr_log_vpd(&error->cfc_vpd);
1675 ipr_err("-----Expected Configuration-----\n");
1676 ipr_err("Cache Directory Card Information:\n");
1677 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1678 ipr_err("Adapter Card Information:\n");
1679 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1681 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1682 be32_to_cpu(error->ioa_data[0]),
1683 be32_to_cpu(error->ioa_data[1]),
1684 be32_to_cpu(error->ioa_data[2]));
1688 * ipr_log_enhanced_config_error - Log a configuration error.
1689 * @ioa_cfg: ioa config struct
1690 * @hostrcb: hostrcb struct
1695 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1696 struct ipr_hostrcb *hostrcb)
1698 int errors_logged, i;
1699 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1700 struct ipr_hostrcb_type_13_error *error;
1702 error = &hostrcb->hcam.u.error.u.type_13_error;
1703 errors_logged = be32_to_cpu(error->errors_logged);
1705 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1706 be32_to_cpu(error->errors_detected), errors_logged);
1708 dev_entry = error->dev;
1710 for (i = 0; i < errors_logged; i++, dev_entry++) {
1713 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1714 ipr_log_ext_vpd(&dev_entry->vpd);
1716 ipr_err("-----New Device Information-----\n");
1717 ipr_log_ext_vpd(&dev_entry->new_vpd);
1719 ipr_err("Cache Directory Card Information:\n");
1720 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1722 ipr_err("Adapter Card Information:\n");
1723 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1728 * ipr_log_sis64_config_error - Log a device error.
1729 * @ioa_cfg: ioa config struct
1730 * @hostrcb: hostrcb struct
1735 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1736 struct ipr_hostrcb *hostrcb)
1738 int errors_logged, i;
1739 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1740 struct ipr_hostrcb_type_23_error *error;
1741 char buffer[IPR_MAX_RES_PATH_LENGTH];
1743 error = &hostrcb->hcam.u.error64.u.type_23_error;
1744 errors_logged = be32_to_cpu(error->errors_logged);
1746 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1747 be32_to_cpu(error->errors_detected), errors_logged);
1749 dev_entry = error->dev;
1751 for (i = 0; i < errors_logged; i++, dev_entry++) {
1754 ipr_err("Device %d : %s", i + 1,
1755 __ipr_format_res_path(dev_entry->res_path,
1756 buffer, sizeof(buffer)));
1757 ipr_log_ext_vpd(&dev_entry->vpd);
1759 ipr_err("-----New Device Information-----\n");
1760 ipr_log_ext_vpd(&dev_entry->new_vpd);
1762 ipr_err("Cache Directory Card Information:\n");
1763 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1765 ipr_err("Adapter Card Information:\n");
1766 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1771 * ipr_log_config_error - Log a configuration error.
1772 * @ioa_cfg: ioa config struct
1773 * @hostrcb: hostrcb struct
1778 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1779 struct ipr_hostrcb *hostrcb)
1781 int errors_logged, i;
1782 struct ipr_hostrcb_device_data_entry *dev_entry;
1783 struct ipr_hostrcb_type_03_error *error;
1785 error = &hostrcb->hcam.u.error.u.type_03_error;
1786 errors_logged = be32_to_cpu(error->errors_logged);
1788 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1789 be32_to_cpu(error->errors_detected), errors_logged);
1791 dev_entry = error->dev;
1793 for (i = 0; i < errors_logged; i++, dev_entry++) {
1796 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1797 ipr_log_vpd(&dev_entry->vpd);
1799 ipr_err("-----New Device Information-----\n");
1800 ipr_log_vpd(&dev_entry->new_vpd);
1802 ipr_err("Cache Directory Card Information:\n");
1803 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1805 ipr_err("Adapter Card Information:\n");
1806 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1808 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1809 be32_to_cpu(dev_entry->ioa_data[0]),
1810 be32_to_cpu(dev_entry->ioa_data[1]),
1811 be32_to_cpu(dev_entry->ioa_data[2]),
1812 be32_to_cpu(dev_entry->ioa_data[3]),
1813 be32_to_cpu(dev_entry->ioa_data[4]));
1818 * ipr_log_enhanced_array_error - Log an array configuration error.
1819 * @ioa_cfg: ioa config struct
1820 * @hostrcb: hostrcb struct
1825 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1826 struct ipr_hostrcb *hostrcb)
1829 struct ipr_hostrcb_type_14_error *error;
1830 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1831 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1833 error = &hostrcb->hcam.u.error.u.type_14_error;
1837 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1838 error->protection_level,
1839 ioa_cfg->host->host_no,
1840 error->last_func_vset_res_addr.bus,
1841 error->last_func_vset_res_addr.target,
1842 error->last_func_vset_res_addr.lun);
1846 array_entry = error->array_member;
1847 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1848 ARRAY_SIZE(error->array_member));
1850 for (i = 0; i < num_entries; i++, array_entry++) {
1851 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1854 if (be32_to_cpu(error->exposed_mode_adn) == i)
1855 ipr_err("Exposed Array Member %d:\n", i);
1857 ipr_err("Array Member %d:\n", i);
1859 ipr_log_ext_vpd(&array_entry->vpd);
1860 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1861 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1862 "Expected Location");
1869 * ipr_log_array_error - Log an array configuration error.
1870 * @ioa_cfg: ioa config struct
1871 * @hostrcb: hostrcb struct
1876 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1877 struct ipr_hostrcb *hostrcb)
1880 struct ipr_hostrcb_type_04_error *error;
1881 struct ipr_hostrcb_array_data_entry *array_entry;
1882 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1884 error = &hostrcb->hcam.u.error.u.type_04_error;
1888 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1889 error->protection_level,
1890 ioa_cfg->host->host_no,
1891 error->last_func_vset_res_addr.bus,
1892 error->last_func_vset_res_addr.target,
1893 error->last_func_vset_res_addr.lun);
1897 array_entry = error->array_member;
1899 for (i = 0; i < 18; i++) {
1900 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1903 if (be32_to_cpu(error->exposed_mode_adn) == i)
1904 ipr_err("Exposed Array Member %d:\n", i);
1906 ipr_err("Array Member %d:\n", i);
1908 ipr_log_vpd(&array_entry->vpd);
1910 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1911 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1912 "Expected Location");
1917 array_entry = error->array_member2;
1924 * ipr_log_hex_data - Log additional hex IOA error data.
1925 * @ioa_cfg: ioa config struct
1926 * @data: IOA error data
1932 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1939 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1940 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1942 for (i = 0; i < len / 4; i += 4) {
1943 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1944 be32_to_cpu(data[i]),
1945 be32_to_cpu(data[i+1]),
1946 be32_to_cpu(data[i+2]),
1947 be32_to_cpu(data[i+3]));
1952 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1953 * @ioa_cfg: ioa config struct
1954 * @hostrcb: hostrcb struct
1959 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1960 struct ipr_hostrcb *hostrcb)
1962 struct ipr_hostrcb_type_17_error *error;
1965 error = &hostrcb->hcam.u.error64.u.type_17_error;
1967 error = &hostrcb->hcam.u.error.u.type_17_error;
1969 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1970 strim(error->failure_reason);
1972 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1973 be32_to_cpu(hostrcb->hcam.u.error.prc));
1974 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1975 ipr_log_hex_data(ioa_cfg, error->data,
1976 be32_to_cpu(hostrcb->hcam.length) -
1977 (offsetof(struct ipr_hostrcb_error, u) +
1978 offsetof(struct ipr_hostrcb_type_17_error, data)));
1982 * ipr_log_dual_ioa_error - Log a dual adapter error.
1983 * @ioa_cfg: ioa config struct
1984 * @hostrcb: hostrcb struct
1989 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1990 struct ipr_hostrcb *hostrcb)
1992 struct ipr_hostrcb_type_07_error *error;
1994 error = &hostrcb->hcam.u.error.u.type_07_error;
1995 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1996 strim(error->failure_reason);
1998 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1999 be32_to_cpu(hostrcb->hcam.u.error.prc));
2000 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
2001 ipr_log_hex_data(ioa_cfg, error->data,
2002 be32_to_cpu(hostrcb->hcam.length) -
2003 (offsetof(struct ipr_hostrcb_error, u) +
2004 offsetof(struct ipr_hostrcb_type_07_error, data)));
2007 static const struct {
2010 } path_active_desc[] = {
2011 { IPR_PATH_NO_INFO, "Path" },
2012 { IPR_PATH_ACTIVE, "Active path" },
2013 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
2016 static const struct {
2019 } path_state_desc[] = {
2020 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
2021 { IPR_PATH_HEALTHY, "is healthy" },
2022 { IPR_PATH_DEGRADED, "is degraded" },
2023 { IPR_PATH_FAILED, "is failed" }
2027 * ipr_log_fabric_path - Log a fabric path error
2028 * @hostrcb: hostrcb struct
2029 * @fabric: fabric descriptor
2034 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2035 struct ipr_hostrcb_fabric_desc *fabric)
2038 u8 path_state = fabric->path_state;
2039 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2040 u8 state = path_state & IPR_PATH_STATE_MASK;
2042 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2043 if (path_active_desc[i].active != active)
2046 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2047 if (path_state_desc[j].state != state)
2050 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2051 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2052 path_active_desc[i].desc, path_state_desc[j].desc,
2054 } else if (fabric->cascaded_expander == 0xff) {
2055 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2056 path_active_desc[i].desc, path_state_desc[j].desc,
2057 fabric->ioa_port, fabric->phy);
2058 } else if (fabric->phy == 0xff) {
2059 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2060 path_active_desc[i].desc, path_state_desc[j].desc,
2061 fabric->ioa_port, fabric->cascaded_expander);
2063 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2064 path_active_desc[i].desc, path_state_desc[j].desc,
2065 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2071 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2072 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2076 * ipr_log64_fabric_path - Log a fabric path error
2077 * @hostrcb: hostrcb struct
2078 * @fabric: fabric descriptor
2083 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2084 struct ipr_hostrcb64_fabric_desc *fabric)
2087 u8 path_state = fabric->path_state;
2088 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2089 u8 state = path_state & IPR_PATH_STATE_MASK;
2090 char buffer[IPR_MAX_RES_PATH_LENGTH];
2092 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2093 if (path_active_desc[i].active != active)
2096 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2097 if (path_state_desc[j].state != state)
2100 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2101 path_active_desc[i].desc, path_state_desc[j].desc,
2102 ipr_format_res_path(hostrcb->ioa_cfg,
2104 buffer, sizeof(buffer)));
2109 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2110 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2111 buffer, sizeof(buffer)));
2114 static const struct {
2117 } path_type_desc[] = {
2118 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2119 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2120 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2121 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2124 static const struct {
2127 } path_status_desc[] = {
2128 { IPR_PATH_CFG_NO_PROB, "Functional" },
2129 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2130 { IPR_PATH_CFG_FAILED, "Failed" },
2131 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2132 { IPR_PATH_NOT_DETECTED, "Missing" },
2133 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2136 static const char *link_rate[] = {
2139 "phy reset problem",
2156 * ipr_log_path_elem - Log a fabric path element.
2157 * @hostrcb: hostrcb struct
2158 * @cfg: fabric path element struct
2163 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2164 struct ipr_hostrcb_config_element *cfg)
2167 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2168 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2170 if (type == IPR_PATH_CFG_NOT_EXIST)
2173 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2174 if (path_type_desc[i].type != type)
2177 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2178 if (path_status_desc[j].status != status)
2181 if (type == IPR_PATH_CFG_IOA_PORT) {
2182 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2183 path_status_desc[j].desc, path_type_desc[i].desc,
2184 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2185 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2187 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2188 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2189 path_status_desc[j].desc, path_type_desc[i].desc,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2192 } else if (cfg->cascaded_expander == 0xff) {
2193 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2194 "WWN=%08X%08X\n", path_status_desc[j].desc,
2195 path_type_desc[i].desc, cfg->phy,
2196 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2197 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2198 } else if (cfg->phy == 0xff) {
2199 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2200 "WWN=%08X%08X\n", path_status_desc[j].desc,
2201 path_type_desc[i].desc, cfg->cascaded_expander,
2202 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2203 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2205 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2206 "WWN=%08X%08X\n", path_status_desc[j].desc,
2207 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2208 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2209 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2216 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2217 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2218 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2219 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2223 * ipr_log64_path_elem - Log a fabric path element.
2224 * @hostrcb: hostrcb struct
2225 * @cfg: fabric path element struct
2230 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2231 struct ipr_hostrcb64_config_element *cfg)
2234 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2235 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2236 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2237 char buffer[IPR_MAX_RES_PATH_LENGTH];
2239 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2242 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2243 if (path_type_desc[i].type != type)
2246 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2247 if (path_status_desc[j].status != status)
2250 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2251 path_status_desc[j].desc, path_type_desc[i].desc,
2252 ipr_format_res_path(hostrcb->ioa_cfg,
2253 cfg->res_path, buffer, sizeof(buffer)),
2254 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2255 be32_to_cpu(cfg->wwid[0]),
2256 be32_to_cpu(cfg->wwid[1]));
2260 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2261 "WWN=%08X%08X\n", cfg->type_status,
2262 ipr_format_res_path(hostrcb->ioa_cfg,
2263 cfg->res_path, buffer, sizeof(buffer)),
2264 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2265 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2269 * ipr_log_fabric_error - Log a fabric error.
2270 * @ioa_cfg: ioa config struct
2271 * @hostrcb: hostrcb struct
2276 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2277 struct ipr_hostrcb *hostrcb)
2279 struct ipr_hostrcb_type_20_error *error;
2280 struct ipr_hostrcb_fabric_desc *fabric;
2281 struct ipr_hostrcb_config_element *cfg;
2284 error = &hostrcb->hcam.u.error.u.type_20_error;
2285 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2286 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2288 add_len = be32_to_cpu(hostrcb->hcam.length) -
2289 (offsetof(struct ipr_hostrcb_error, u) +
2290 offsetof(struct ipr_hostrcb_type_20_error, desc));
2292 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2293 ipr_log_fabric_path(hostrcb, fabric);
2294 for_each_fabric_cfg(fabric, cfg)
2295 ipr_log_path_elem(hostrcb, cfg);
2297 add_len -= be16_to_cpu(fabric->length);
2298 fabric = (struct ipr_hostrcb_fabric_desc *)
2299 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2302 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2306 * ipr_log_sis64_array_error - Log a sis64 array error.
2307 * @ioa_cfg: ioa config struct
2308 * @hostrcb: hostrcb struct
2313 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2314 struct ipr_hostrcb *hostrcb)
2317 struct ipr_hostrcb_type_24_error *error;
2318 struct ipr_hostrcb64_array_data_entry *array_entry;
2319 char buffer[IPR_MAX_RES_PATH_LENGTH];
2320 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2322 error = &hostrcb->hcam.u.error64.u.type_24_error;
2326 ipr_err("RAID %s Array Configuration: %s\n",
2327 error->protection_level,
2328 ipr_format_res_path(ioa_cfg, error->last_res_path,
2329 buffer, sizeof(buffer)));
2333 array_entry = error->array_member;
2334 num_entries = min_t(u32, error->num_entries,
2335 ARRAY_SIZE(error->array_member));
2337 for (i = 0; i < num_entries; i++, array_entry++) {
2339 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2342 if (error->exposed_mode_adn == i)
2343 ipr_err("Exposed Array Member %d:\n", i);
2345 ipr_err("Array Member %d:\n", i);
2347 ipr_err("Array Member %d:\n", i);
2348 ipr_log_ext_vpd(&array_entry->vpd);
2349 ipr_err("Current Location: %s\n",
2350 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2351 buffer, sizeof(buffer)));
2352 ipr_err("Expected Location: %s\n",
2353 ipr_format_res_path(ioa_cfg,
2354 array_entry->expected_res_path,
2355 buffer, sizeof(buffer)));
2362 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2363 * @ioa_cfg: ioa config struct
2364 * @hostrcb: hostrcb struct
2369 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2370 struct ipr_hostrcb *hostrcb)
2372 struct ipr_hostrcb_type_30_error *error;
2373 struct ipr_hostrcb64_fabric_desc *fabric;
2374 struct ipr_hostrcb64_config_element *cfg;
2377 error = &hostrcb->hcam.u.error64.u.type_30_error;
2379 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2380 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2382 add_len = be32_to_cpu(hostrcb->hcam.length) -
2383 (offsetof(struct ipr_hostrcb64_error, u) +
2384 offsetof(struct ipr_hostrcb_type_30_error, desc));
2386 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2387 ipr_log64_fabric_path(hostrcb, fabric);
2388 for_each_fabric_cfg(fabric, cfg)
2389 ipr_log64_path_elem(hostrcb, cfg);
2391 add_len -= be16_to_cpu(fabric->length);
2392 fabric = (struct ipr_hostrcb64_fabric_desc *)
2393 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2396 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2400 * ipr_log_sis64_service_required_error - Log a sis64 service required error.
2401 * @ioa_cfg: ioa config struct
2402 * @hostrcb: hostrcb struct
2407 static void ipr_log_sis64_service_required_error(struct ipr_ioa_cfg *ioa_cfg,
2408 struct ipr_hostrcb *hostrcb)
2410 struct ipr_hostrcb_type_41_error *error;
2412 error = &hostrcb->hcam.u.error64.u.type_41_error;
2414 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2415 ipr_err("Primary Failure Reason: %s\n", error->failure_reason);
2416 ipr_log_hex_data(ioa_cfg, error->data,
2417 be32_to_cpu(hostrcb->hcam.length) -
2418 (offsetof(struct ipr_hostrcb_error, u) +
2419 offsetof(struct ipr_hostrcb_type_41_error, data)));
2422 * ipr_log_generic_error - Log an adapter error.
2423 * @ioa_cfg: ioa config struct
2424 * @hostrcb: hostrcb struct
2429 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2430 struct ipr_hostrcb *hostrcb)
2432 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2433 be32_to_cpu(hostrcb->hcam.length));
2437 * ipr_log_sis64_device_error - Log a cache error.
2438 * @ioa_cfg: ioa config struct
2439 * @hostrcb: hostrcb struct
2444 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2445 struct ipr_hostrcb *hostrcb)
2447 struct ipr_hostrcb_type_21_error *error;
2448 char buffer[IPR_MAX_RES_PATH_LENGTH];
2450 error = &hostrcb->hcam.u.error64.u.type_21_error;
2452 ipr_err("-----Failing Device Information-----\n");
2453 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2454 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2455 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2456 ipr_err("Device Resource Path: %s\n",
2457 __ipr_format_res_path(error->res_path,
2458 buffer, sizeof(buffer)));
2459 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2460 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2461 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2462 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2463 ipr_err("SCSI Sense Data:\n");
2464 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2465 ipr_err("SCSI Command Descriptor Block: \n");
2466 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2468 ipr_err("Additional IOA Data:\n");
2469 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2473 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2476 * This function will return the index of into the ipr_error_table
2477 * for the specified IOASC. If the IOASC is not in the table,
2478 * 0 will be returned, which points to the entry used for unknown errors.
2481 * index into the ipr_error_table
2483 static u32 ipr_get_error(u32 ioasc)
2487 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2488 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2495 * ipr_handle_log_data - Log an adapter error.
2496 * @ioa_cfg: ioa config struct
2497 * @hostrcb: hostrcb struct
2499 * This function logs an adapter error to the system.
2504 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2505 struct ipr_hostrcb *hostrcb)
2509 struct ipr_hostrcb_type_21_error *error;
2511 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2514 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2515 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2518 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2520 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2522 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2523 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2524 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2525 scsi_report_bus_reset(ioa_cfg->host,
2526 hostrcb->hcam.u.error.fd_res_addr.bus);
2529 error_index = ipr_get_error(ioasc);
2531 if (!ipr_error_table[error_index].log_hcam)
2534 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2535 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2536 error = &hostrcb->hcam.u.error64.u.type_21_error;
2538 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2539 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2543 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2545 /* Set indication we have logged an error */
2546 ioa_cfg->errors_logged++;
2548 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2550 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2551 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2553 switch (hostrcb->hcam.overlay_id) {
2554 case IPR_HOST_RCB_OVERLAY_ID_2:
2555 ipr_log_cache_error(ioa_cfg, hostrcb);
2557 case IPR_HOST_RCB_OVERLAY_ID_3:
2558 ipr_log_config_error(ioa_cfg, hostrcb);
2560 case IPR_HOST_RCB_OVERLAY_ID_4:
2561 case IPR_HOST_RCB_OVERLAY_ID_6:
2562 ipr_log_array_error(ioa_cfg, hostrcb);
2564 case IPR_HOST_RCB_OVERLAY_ID_7:
2565 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2567 case IPR_HOST_RCB_OVERLAY_ID_12:
2568 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2570 case IPR_HOST_RCB_OVERLAY_ID_13:
2571 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2573 case IPR_HOST_RCB_OVERLAY_ID_14:
2574 case IPR_HOST_RCB_OVERLAY_ID_16:
2575 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2577 case IPR_HOST_RCB_OVERLAY_ID_17:
2578 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2580 case IPR_HOST_RCB_OVERLAY_ID_20:
2581 ipr_log_fabric_error(ioa_cfg, hostrcb);
2583 case IPR_HOST_RCB_OVERLAY_ID_21:
2584 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2586 case IPR_HOST_RCB_OVERLAY_ID_23:
2587 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2589 case IPR_HOST_RCB_OVERLAY_ID_24:
2590 case IPR_HOST_RCB_OVERLAY_ID_26:
2591 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2593 case IPR_HOST_RCB_OVERLAY_ID_30:
2594 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2596 case IPR_HOST_RCB_OVERLAY_ID_41:
2597 ipr_log_sis64_service_required_error(ioa_cfg, hostrcb);
2599 case IPR_HOST_RCB_OVERLAY_ID_1:
2600 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2602 ipr_log_generic_error(ioa_cfg, hostrcb);
2607 static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
2609 struct ipr_hostrcb *hostrcb;
2611 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
2612 struct ipr_hostrcb, queue);
2614 if (unlikely(!hostrcb)) {
2615 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
2616 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
2617 struct ipr_hostrcb, queue);
2620 list_del_init(&hostrcb->queue);
2625 * ipr_process_error - Op done function for an adapter error log.
2626 * @ipr_cmd: ipr command struct
2628 * This function is the op done function for an error log host
2629 * controlled async from the adapter. It will log the error and
2630 * send the HCAM back to the adapter.
2635 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2637 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2638 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2639 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2643 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2645 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2647 list_del_init(&hostrcb->queue);
2648 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2651 ipr_handle_log_data(ioa_cfg, hostrcb);
2652 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2654 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2655 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2656 dev_err(&ioa_cfg->pdev->dev,
2657 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2660 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
2661 schedule_work(&ioa_cfg->work_q);
2662 hostrcb = ipr_get_free_hostrcb(ioa_cfg);
2664 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2668 * ipr_timeout - An internally generated op has timed out.
2669 * @t: Timer context used to fetch ipr command struct
2671 * This function blocks host requests and initiates an
2677 static void ipr_timeout(struct timer_list *t)
2679 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
2680 unsigned long lock_flags = 0;
2681 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2686 ioa_cfg->errors_logged++;
2687 dev_err(&ioa_cfg->pdev->dev,
2688 "Adapter being reset due to command timeout.\n");
2690 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2691 ioa_cfg->sdt_state = GET_DUMP;
2693 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2694 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2696 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2701 * ipr_oper_timeout - Adapter timed out transitioning to operational
2702 * @t: Timer context used to fetch ipr command struct
2704 * This function blocks host requests and initiates an
2710 static void ipr_oper_timeout(struct timer_list *t)
2712 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
2713 unsigned long lock_flags = 0;
2714 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2717 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2719 ioa_cfg->errors_logged++;
2720 dev_err(&ioa_cfg->pdev->dev,
2721 "Adapter timed out transitioning to operational.\n");
2723 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2724 ioa_cfg->sdt_state = GET_DUMP;
2726 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2728 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2729 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2732 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2737 * ipr_find_ses_entry - Find matching SES in SES table
2738 * @res: resource entry struct of SES
2741 * pointer to SES table entry / NULL on failure
2743 static const struct ipr_ses_table_entry *
2744 ipr_find_ses_entry(struct ipr_resource_entry *res)
2747 struct ipr_std_inq_vpids *vpids;
2748 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2750 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2751 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2752 if (ste->compare_product_id_byte[j] == 'X') {
2753 vpids = &res->std_inq_data.vpids;
2754 if (vpids->product_id[j] == ste->product_id[j])
2762 if (matches == IPR_PROD_ID_LEN)
2770 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2771 * @ioa_cfg: ioa config struct
2773 * @bus_width: bus width
2776 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2777 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2778 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2779 * max 160MHz = max 320MB/sec).
2781 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2783 struct ipr_resource_entry *res;
2784 const struct ipr_ses_table_entry *ste;
2785 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2787 /* Loop through each config table entry in the config table buffer */
2788 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2789 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2792 if (bus != res->bus)
2795 if (!(ste = ipr_find_ses_entry(res)))
2798 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2801 return max_xfer_rate;
2805 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2806 * @ioa_cfg: ioa config struct
2807 * @max_delay: max delay in micro-seconds to wait
2809 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2812 * 0 on success / other on failure
2814 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2816 volatile u32 pcii_reg;
2819 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2820 while (delay < max_delay) {
2821 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2823 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2826 /* udelay cannot be used if delay is more than a few milliseconds */
2827 if ((delay / 1000) > MAX_UDELAY_MS)
2828 mdelay(delay / 1000);
2838 * ipr_get_sis64_dump_data_section - Dump IOA memory
2839 * @ioa_cfg: ioa config struct
2840 * @start_addr: adapter address to dump
2841 * @dest: destination kernel buffer
2842 * @length_in_words: length to dump in 4 byte words
2847 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2849 __be32 *dest, u32 length_in_words)
2853 for (i = 0; i < length_in_words; i++) {
2854 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2855 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2863 * ipr_get_ldump_data_section - Dump IOA memory
2864 * @ioa_cfg: ioa config struct
2865 * @start_addr: adapter address to dump
2866 * @dest: destination kernel buffer
2867 * @length_in_words: length to dump in 4 byte words
2870 * 0 on success / -EIO on failure
2872 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2874 __be32 *dest, u32 length_in_words)
2876 volatile u32 temp_pcii_reg;
2880 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2881 dest, length_in_words);
2883 /* Write IOA interrupt reg starting LDUMP state */
2884 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2885 ioa_cfg->regs.set_uproc_interrupt_reg32);
2887 /* Wait for IO debug acknowledge */
2888 if (ipr_wait_iodbg_ack(ioa_cfg,
2889 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2890 dev_err(&ioa_cfg->pdev->dev,
2891 "IOA dump long data transfer timeout\n");
2895 /* Signal LDUMP interlocked - clear IO debug ack */
2896 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2897 ioa_cfg->regs.clr_interrupt_reg);
2899 /* Write Mailbox with starting address */
2900 writel(start_addr, ioa_cfg->ioa_mailbox);
2902 /* Signal address valid - clear IOA Reset alert */
2903 writel(IPR_UPROCI_RESET_ALERT,
2904 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2906 for (i = 0; i < length_in_words; i++) {
2907 /* Wait for IO debug acknowledge */
2908 if (ipr_wait_iodbg_ack(ioa_cfg,
2909 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2910 dev_err(&ioa_cfg->pdev->dev,
2911 "IOA dump short data transfer timeout\n");
2915 /* Read data from mailbox and increment destination pointer */
2916 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2919 /* For all but the last word of data, signal data received */
2920 if (i < (length_in_words - 1)) {
2921 /* Signal dump data received - Clear IO debug Ack */
2922 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2923 ioa_cfg->regs.clr_interrupt_reg);
2927 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2928 writel(IPR_UPROCI_RESET_ALERT,
2929 ioa_cfg->regs.set_uproc_interrupt_reg32);
2931 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2932 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2934 /* Signal dump data received - Clear IO debug Ack */
2935 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2936 ioa_cfg->regs.clr_interrupt_reg);
2938 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2939 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2941 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2943 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2953 #ifdef CONFIG_SCSI_IPR_DUMP
2955 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2956 * @ioa_cfg: ioa config struct
2957 * @pci_address: adapter address
2958 * @length: length of data to copy
2960 * Copy data from PCI adapter to kernel buffer.
2961 * Note: length MUST be a 4 byte multiple
2963 * 0 on success / other on failure
2965 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2966 unsigned long pci_address, u32 length)
2968 int bytes_copied = 0;
2969 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2971 unsigned long lock_flags = 0;
2972 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2975 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2977 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2979 while (bytes_copied < length &&
2980 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2981 if (ioa_dump->page_offset >= PAGE_SIZE ||
2982 ioa_dump->page_offset == 0) {
2983 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2987 return bytes_copied;
2990 ioa_dump->page_offset = 0;
2991 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2992 ioa_dump->next_page_index++;
2994 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2996 rem_len = length - bytes_copied;
2997 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2998 cur_len = min(rem_len, rem_page_len);
3000 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3001 if (ioa_cfg->sdt_state == ABORT_DUMP) {
3004 rc = ipr_get_ldump_data_section(ioa_cfg,
3005 pci_address + bytes_copied,
3006 &page[ioa_dump->page_offset / 4],
3007 (cur_len / sizeof(u32)));
3009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3012 ioa_dump->page_offset += cur_len;
3013 bytes_copied += cur_len;
3021 return bytes_copied;
3025 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
3026 * @hdr: dump entry header struct
3031 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
3033 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
3035 hdr->offset = sizeof(*hdr);
3036 hdr->status = IPR_DUMP_STATUS_SUCCESS;
3040 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
3041 * @ioa_cfg: ioa config struct
3042 * @driver_dump: driver dump struct
3047 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
3048 struct ipr_driver_dump *driver_dump)
3050 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3052 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
3053 driver_dump->ioa_type_entry.hdr.len =
3054 sizeof(struct ipr_dump_ioa_type_entry) -
3055 sizeof(struct ipr_dump_entry_header);
3056 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3057 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
3058 driver_dump->ioa_type_entry.type = ioa_cfg->type;
3059 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
3060 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
3061 ucode_vpd->minor_release[1];
3062 driver_dump->hdr.num_entries++;
3066 * ipr_dump_version_data - Fill in the driver version in the dump.
3067 * @ioa_cfg: ioa config struct
3068 * @driver_dump: driver dump struct
3073 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
3074 struct ipr_driver_dump *driver_dump)
3076 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3077 driver_dump->version_entry.hdr.len =
3078 sizeof(struct ipr_dump_version_entry) -
3079 sizeof(struct ipr_dump_entry_header);
3080 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3081 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3082 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3083 driver_dump->hdr.num_entries++;
3087 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3088 * @ioa_cfg: ioa config struct
3089 * @driver_dump: driver dump struct
3094 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3095 struct ipr_driver_dump *driver_dump)
3097 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3098 driver_dump->trace_entry.hdr.len =
3099 sizeof(struct ipr_dump_trace_entry) -
3100 sizeof(struct ipr_dump_entry_header);
3101 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3102 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3103 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3104 driver_dump->hdr.num_entries++;
3108 * ipr_dump_location_data - Fill in the IOA location in the dump.
3109 * @ioa_cfg: ioa config struct
3110 * @driver_dump: driver dump struct
3115 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3116 struct ipr_driver_dump *driver_dump)
3118 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3119 driver_dump->location_entry.hdr.len =
3120 sizeof(struct ipr_dump_location_entry) -
3121 sizeof(struct ipr_dump_entry_header);
3122 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3123 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3124 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3125 driver_dump->hdr.num_entries++;
3129 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3130 * @ioa_cfg: ioa config struct
3131 * @dump: dump struct
3136 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3138 unsigned long start_addr, sdt_word;
3139 unsigned long lock_flags = 0;
3140 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3141 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3142 u32 num_entries, max_num_entries, start_off, end_off;
3143 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3144 struct ipr_sdt *sdt;
3150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3152 if (ioa_cfg->sdt_state != READ_DUMP) {
3153 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3157 if (ioa_cfg->sis64) {
3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3159 ssleep(IPR_DUMP_DELAY_SECONDS);
3160 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3163 start_addr = readl(ioa_cfg->ioa_mailbox);
3165 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3166 dev_err(&ioa_cfg->pdev->dev,
3167 "Invalid dump table format: %lx\n", start_addr);
3168 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3172 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3174 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3176 /* Initialize the overall dump header */
3177 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3178 driver_dump->hdr.num_entries = 1;
3179 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3180 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3181 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3182 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3184 ipr_dump_version_data(ioa_cfg, driver_dump);
3185 ipr_dump_location_data(ioa_cfg, driver_dump);
3186 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3187 ipr_dump_trace_data(ioa_cfg, driver_dump);
3189 /* Update dump_header */
3190 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3192 /* IOA Dump entry */
3193 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3194 ioa_dump->hdr.len = 0;
3195 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3196 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3198 /* First entries in sdt are actually a list of dump addresses and
3199 lengths to gather the real dump data. sdt represents the pointer
3200 to the ioa generated dump table. Dump data will be extracted based
3201 on entries in this table */
3202 sdt = &ioa_dump->sdt;
3204 if (ioa_cfg->sis64) {
3205 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3206 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3208 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3209 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3212 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3213 (max_num_entries * sizeof(struct ipr_sdt_entry));
3214 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3215 bytes_to_copy / sizeof(__be32));
3217 /* Smart Dump table is ready to use and the first entry is valid */
3218 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3219 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3220 dev_err(&ioa_cfg->pdev->dev,
3221 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3222 rc, be32_to_cpu(sdt->hdr.state));
3223 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3224 ioa_cfg->sdt_state = DUMP_OBTAINED;
3225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3229 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3231 if (num_entries > max_num_entries)
3232 num_entries = max_num_entries;
3234 /* Update dump length to the actual data to be copied */
3235 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3237 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3239 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3243 for (i = 0; i < num_entries; i++) {
3244 if (ioa_dump->hdr.len > max_dump_size) {
3245 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3249 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3250 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3252 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3254 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3255 end_off = be32_to_cpu(sdt->entry[i].end_token);
3257 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3258 bytes_to_copy = end_off - start_off;
3263 if (bytes_to_copy > max_dump_size) {
3264 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3268 /* Copy data from adapter to driver buffers */
3269 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3272 ioa_dump->hdr.len += bytes_copied;
3274 if (bytes_copied != bytes_to_copy) {
3275 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3282 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3284 /* Update dump_header */
3285 driver_dump->hdr.len += ioa_dump->hdr.len;
3287 ioa_cfg->sdt_state = DUMP_OBTAINED;
3292 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3296 * ipr_release_dump - Free adapter dump memory
3297 * @kref: kref struct
3302 static void ipr_release_dump(struct kref *kref)
3304 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3305 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3306 unsigned long lock_flags = 0;
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3311 ioa_cfg->dump = NULL;
3312 ioa_cfg->sdt_state = INACTIVE;
3313 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3315 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3316 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3318 vfree(dump->ioa_dump.ioa_data);
3323 static void ipr_add_remove_thread(struct work_struct *work)
3325 unsigned long lock_flags;
3326 struct ipr_resource_entry *res;
3327 struct scsi_device *sdev;
3328 struct ipr_ioa_cfg *ioa_cfg =
3329 container_of(work, struct ipr_ioa_cfg, scsi_add_work_q);
3330 u8 bus, target, lun;
3334 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3339 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3344 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3345 if (res->del_from_ml && res->sdev) {
3348 if (!scsi_device_get(sdev)) {
3349 if (!res->add_to_ml)
3350 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3352 res->del_from_ml = 0;
3353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3354 scsi_remove_device(sdev);
3355 scsi_device_put(sdev);
3356 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3363 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3364 if (res->add_to_ml) {
3366 target = res->target;
3369 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3370 scsi_add_device(ioa_cfg->host, bus, target, lun);
3371 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3376 ioa_cfg->scan_done = 1;
3377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3378 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3383 * ipr_worker_thread - Worker thread
3384 * @work: ioa config struct
3386 * Called at task level from a work thread. This function takes care
3387 * of adding and removing device from the mid-layer as configuration
3388 * changes are detected by the adapter.
3393 static void ipr_worker_thread(struct work_struct *work)
3395 unsigned long lock_flags;
3396 struct ipr_dump *dump;
3397 struct ipr_ioa_cfg *ioa_cfg =
3398 container_of(work, struct ipr_ioa_cfg, work_q);
3401 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3403 if (ioa_cfg->sdt_state == READ_DUMP) {
3404 dump = ioa_cfg->dump;
3406 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3409 kref_get(&dump->kref);
3410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3411 ipr_get_ioa_dump(ioa_cfg, dump);
3412 kref_put(&dump->kref, ipr_release_dump);
3414 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3415 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3417 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3421 if (ioa_cfg->scsi_unblock) {
3422 ioa_cfg->scsi_unblock = 0;
3423 ioa_cfg->scsi_blocked = 0;
3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 scsi_unblock_requests(ioa_cfg->host);
3426 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3427 if (ioa_cfg->scsi_blocked)
3428 scsi_block_requests(ioa_cfg->host);
3431 if (!ioa_cfg->scan_enabled) {
3432 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3436 schedule_work(&ioa_cfg->scsi_add_work_q);
3438 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3442 #ifdef CONFIG_SCSI_IPR_TRACE
3444 * ipr_read_trace - Dump the adapter trace
3445 * @filp: open sysfs file
3446 * @kobj: kobject struct
3447 * @bin_attr: bin_attribute struct
3450 * @count: buffer size
3453 * number of bytes printed to buffer
3455 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3456 struct bin_attribute *bin_attr,
3457 char *buf, loff_t off, size_t count)
3459 struct device *dev = kobj_to_dev(kobj);
3460 struct Scsi_Host *shost = class_to_shost(dev);
3461 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3462 unsigned long lock_flags = 0;
3465 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3466 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3468 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3473 static struct bin_attribute ipr_trace_attr = {
3479 .read = ipr_read_trace,
3484 * ipr_show_fw_version - Show the firmware version
3485 * @dev: class device struct
3486 * @attr: device attribute (unused)
3490 * number of bytes printed to buffer
3492 static ssize_t ipr_show_fw_version(struct device *dev,
3493 struct device_attribute *attr, char *buf)
3495 struct Scsi_Host *shost = class_to_shost(dev);
3496 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3497 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3498 unsigned long lock_flags = 0;
3501 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3502 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3503 ucode_vpd->major_release, ucode_vpd->card_type,
3504 ucode_vpd->minor_release[0],
3505 ucode_vpd->minor_release[1]);
3506 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3510 static struct device_attribute ipr_fw_version_attr = {
3512 .name = "fw_version",
3515 .show = ipr_show_fw_version,
3519 * ipr_show_log_level - Show the adapter's error logging level
3520 * @dev: class device struct
3521 * @attr: device attribute (unused)
3525 * number of bytes printed to buffer
3527 static ssize_t ipr_show_log_level(struct device *dev,
3528 struct device_attribute *attr, char *buf)
3530 struct Scsi_Host *shost = class_to_shost(dev);
3531 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3532 unsigned long lock_flags = 0;
3535 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3536 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3537 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3542 * ipr_store_log_level - Change the adapter's error logging level
3543 * @dev: class device struct
3544 * @attr: device attribute (unused)
3546 * @count: buffer size
3549 * number of bytes printed to buffer
3551 static ssize_t ipr_store_log_level(struct device *dev,
3552 struct device_attribute *attr,
3553 const char *buf, size_t count)
3555 struct Scsi_Host *shost = class_to_shost(dev);
3556 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3557 unsigned long lock_flags = 0;
3559 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3560 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3565 static struct device_attribute ipr_log_level_attr = {
3567 .name = "log_level",
3568 .mode = S_IRUGO | S_IWUSR,
3570 .show = ipr_show_log_level,
3571 .store = ipr_store_log_level
3575 * ipr_store_diagnostics - IOA Diagnostics interface
3576 * @dev: device struct
3577 * @attr: device attribute (unused)
3579 * @count: buffer size
3581 * This function will reset the adapter and wait a reasonable
3582 * amount of time for any errors that the adapter might log.
3585 * count on success / other on failure
3587 static ssize_t ipr_store_diagnostics(struct device *dev,
3588 struct device_attribute *attr,
3589 const char *buf, size_t count)
3591 struct Scsi_Host *shost = class_to_shost(dev);
3592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3593 unsigned long lock_flags = 0;
3596 if (!capable(CAP_SYS_ADMIN))
3599 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3600 while (ioa_cfg->in_reset_reload) {
3601 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3602 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3603 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3606 ioa_cfg->errors_logged = 0;
3607 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3609 if (ioa_cfg->in_reset_reload) {
3610 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3611 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3613 /* Wait for a second for any errors to be logged */
3616 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3620 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3621 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3623 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 static struct device_attribute ipr_diagnostics_attr = {
3630 .name = "run_diagnostics",
3633 .store = ipr_store_diagnostics
3637 * ipr_show_adapter_state - Show the adapter's state
3638 * @dev: device struct
3639 * @attr: device attribute (unused)
3643 * number of bytes printed to buffer
3645 static ssize_t ipr_show_adapter_state(struct device *dev,
3646 struct device_attribute *attr, char *buf)
3648 struct Scsi_Host *shost = class_to_shost(dev);
3649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3650 unsigned long lock_flags = 0;
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3654 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3655 len = snprintf(buf, PAGE_SIZE, "offline\n");
3657 len = snprintf(buf, PAGE_SIZE, "online\n");
3658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3663 * ipr_store_adapter_state - Change adapter state
3664 * @dev: device struct
3665 * @attr: device attribute (unused)
3667 * @count: buffer size
3669 * This function will change the adapter's state.
3672 * count on success / other on failure
3674 static ssize_t ipr_store_adapter_state(struct device *dev,
3675 struct device_attribute *attr,
3676 const char *buf, size_t count)
3678 struct Scsi_Host *shost = class_to_shost(dev);
3679 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3680 unsigned long lock_flags;
3681 int result = count, i;
3683 if (!capable(CAP_SYS_ADMIN))
3686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3687 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3688 !strncmp(buf, "online", 6)) {
3689 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3690 spin_lock(&ioa_cfg->hrrq[i]._lock);
3691 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3692 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3695 ioa_cfg->reset_retries = 0;
3696 ioa_cfg->in_ioa_bringdown = 0;
3697 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3700 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3705 static struct device_attribute ipr_ioa_state_attr = {
3707 .name = "online_state",
3708 .mode = S_IRUGO | S_IWUSR,
3710 .show = ipr_show_adapter_state,
3711 .store = ipr_store_adapter_state
3715 * ipr_store_reset_adapter - Reset the adapter
3716 * @dev: device struct
3717 * @attr: device attribute (unused)
3719 * @count: buffer size
3721 * This function will reset the adapter.
3724 * count on success / other on failure
3726 static ssize_t ipr_store_reset_adapter(struct device *dev,
3727 struct device_attribute *attr,
3728 const char *buf, size_t count)
3730 struct Scsi_Host *shost = class_to_shost(dev);
3731 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3732 unsigned long lock_flags;
3735 if (!capable(CAP_SYS_ADMIN))
3738 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3739 if (!ioa_cfg->in_reset_reload)
3740 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3741 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3742 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3747 static struct device_attribute ipr_ioa_reset_attr = {
3749 .name = "reset_host",
3752 .store = ipr_store_reset_adapter
3755 static int ipr_iopoll(struct irq_poll *iop, int budget);
3757 * ipr_show_iopoll_weight - Show ipr polling mode
3758 * @dev: class device struct
3759 * @attr: device attribute (unused)
3763 * number of bytes printed to buffer
3765 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3766 struct device_attribute *attr, char *buf)
3768 struct Scsi_Host *shost = class_to_shost(dev);
3769 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3770 unsigned long lock_flags = 0;
3773 spin_lock_irqsave(shost->host_lock, lock_flags);
3774 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3775 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3781 * ipr_store_iopoll_weight - Change the adapter's polling mode
3782 * @dev: class device struct
3783 * @attr: device attribute (unused)
3785 * @count: buffer size
3788 * number of bytes printed to buffer
3790 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3791 struct device_attribute *attr,
3792 const char *buf, size_t count)
3794 struct Scsi_Host *shost = class_to_shost(dev);
3795 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3796 unsigned long user_iopoll_weight;
3797 unsigned long lock_flags = 0;
3800 if (!ioa_cfg->sis64) {
3801 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
3804 if (kstrtoul(buf, 10, &user_iopoll_weight))
3807 if (user_iopoll_weight > 256) {
3808 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
3812 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3813 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
3817 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3818 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3819 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
3822 spin_lock_irqsave(shost->host_lock, lock_flags);
3823 ioa_cfg->iopoll_weight = user_iopoll_weight;
3824 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3825 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3826 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
3827 ioa_cfg->iopoll_weight, ipr_iopoll);
3830 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3835 static struct device_attribute ipr_iopoll_weight_attr = {
3837 .name = "iopoll_weight",
3838 .mode = S_IRUGO | S_IWUSR,
3840 .show = ipr_show_iopoll_weight,
3841 .store = ipr_store_iopoll_weight
3845 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3846 * @buf_len: buffer length
3848 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3849 * list to use for microcode download
3852 * pointer to sglist / NULL on failure
3854 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3857 struct ipr_sglist *sglist;
3859 /* Get the minimum size per scatter/gather element */
3860 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3862 /* Get the actual size per element */
3863 order = get_order(sg_size);
3865 /* Allocate a scatter/gather list for the DMA */
3866 sglist = kzalloc(sizeof(struct ipr_sglist), GFP_KERNEL);
3867 if (sglist == NULL) {
3871 sglist->order = order;
3872 sglist->scatterlist = sgl_alloc_order(buf_len, order, false, GFP_KERNEL,
3874 if (!sglist->scatterlist) {
3883 * ipr_free_ucode_buffer - Frees a microcode download buffer
3884 * @sglist: scatter/gather list pointer
3886 * Free a DMA'able ucode download buffer previously allocated with
3887 * ipr_alloc_ucode_buffer
3892 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3894 sgl_free_order(sglist->scatterlist, sglist->order);
3899 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3900 * @sglist: scatter/gather list pointer
3901 * @buffer: buffer pointer
3902 * @len: buffer length
3904 * Copy a microcode image from a user buffer into a buffer allocated by
3905 * ipr_alloc_ucode_buffer
3908 * 0 on success / other on failure
3910 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3911 u8 *buffer, u32 len)
3913 int bsize_elem, i, result = 0;
3914 struct scatterlist *sg;
3917 /* Determine the actual number of bytes per element */
3918 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3920 sg = sglist->scatterlist;
3922 for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg),
3923 buffer += bsize_elem) {
3924 struct page *page = sg_page(sg);
3927 memcpy(kaddr, buffer, bsize_elem);
3930 sg->length = bsize_elem;
3938 if (len % bsize_elem) {
3939 struct page *page = sg_page(sg);
3942 memcpy(kaddr, buffer, len % bsize_elem);
3945 sg->length = len % bsize_elem;
3948 sglist->buffer_len = len;
3953 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3954 * @ipr_cmd: ipr command struct
3955 * @sglist: scatter/gather list
3957 * Builds a microcode download IOA data list (IOADL).
3960 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3961 struct ipr_sglist *sglist)
3963 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3964 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3965 struct scatterlist *scatterlist = sglist->scatterlist;
3966 struct scatterlist *sg;
3969 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3970 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3971 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3974 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3975 for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) {
3976 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3977 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
3978 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
3981 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3985 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3986 * @ipr_cmd: ipr command struct
3987 * @sglist: scatter/gather list
3989 * Builds a microcode download IOA data list (IOADL).
3992 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3993 struct ipr_sglist *sglist)
3995 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3996 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3997 struct scatterlist *scatterlist = sglist->scatterlist;
3998 struct scatterlist *sg;
4001 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
4002 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4003 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
4006 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4008 for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) {
4009 ioadl[i].flags_and_data_len =
4010 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(sg));
4012 cpu_to_be32(sg_dma_address(sg));
4015 ioadl[i-1].flags_and_data_len |=
4016 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4020 * ipr_update_ioa_ucode - Update IOA's microcode
4021 * @ioa_cfg: ioa config struct
4022 * @sglist: scatter/gather list
4024 * Initiate an adapter reset to update the IOA's microcode
4027 * 0 on success / -EIO on failure
4029 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
4030 struct ipr_sglist *sglist)
4032 unsigned long lock_flags;
4034 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4035 while (ioa_cfg->in_reset_reload) {
4036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4037 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4038 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4041 if (ioa_cfg->ucode_sglist) {
4042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4043 dev_err(&ioa_cfg->pdev->dev,
4044 "Microcode download already in progress\n");
4048 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
4049 sglist->scatterlist, sglist->num_sg,
4052 if (!sglist->num_dma_sg) {
4053 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4054 dev_err(&ioa_cfg->pdev->dev,
4055 "Failed to map microcode download buffer!\n");
4059 ioa_cfg->ucode_sglist = sglist;
4060 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
4061 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4062 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4064 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4065 ioa_cfg->ucode_sglist = NULL;
4066 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4071 * ipr_store_update_fw - Update the firmware on the adapter
4072 * @dev: device struct
4073 * @attr: device attribute (unused)
4075 * @count: buffer size
4077 * This function will update the firmware on the adapter.
4080 * count on success / other on failure
4082 static ssize_t ipr_store_update_fw(struct device *dev,
4083 struct device_attribute *attr,
4084 const char *buf, size_t count)
4086 struct Scsi_Host *shost = class_to_shost(dev);
4087 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4088 struct ipr_ucode_image_header *image_hdr;
4089 const struct firmware *fw_entry;
4090 struct ipr_sglist *sglist;
4094 int result, dnld_size;
4096 if (!capable(CAP_SYS_ADMIN))
4099 snprintf(fname, sizeof(fname), "%s", buf);
4101 endline = strchr(fname, '\n');
4105 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4106 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4110 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4112 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4113 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4114 sglist = ipr_alloc_ucode_buffer(dnld_size);
4117 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4118 release_firmware(fw_entry);
4122 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4125 dev_err(&ioa_cfg->pdev->dev,
4126 "Microcode buffer copy to DMA buffer failed\n");
4130 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4132 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4137 ipr_free_ucode_buffer(sglist);
4138 release_firmware(fw_entry);
4142 static struct device_attribute ipr_update_fw_attr = {
4144 .name = "update_fw",
4147 .store = ipr_store_update_fw
4151 * ipr_show_fw_type - Show the adapter's firmware type.
4152 * @dev: class device struct
4153 * @attr: device attribute (unused)
4157 * number of bytes printed to buffer
4159 static ssize_t ipr_show_fw_type(struct device *dev,
4160 struct device_attribute *attr, char *buf)
4162 struct Scsi_Host *shost = class_to_shost(dev);
4163 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4164 unsigned long lock_flags = 0;
4167 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4168 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4169 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4173 static struct device_attribute ipr_ioa_fw_type_attr = {
4178 .show = ipr_show_fw_type
4181 static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
4182 struct bin_attribute *bin_attr, char *buf,
4183 loff_t off, size_t count)
4185 struct device *cdev = kobj_to_dev(kobj);
4186 struct Scsi_Host *shost = class_to_shost(cdev);
4187 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4188 struct ipr_hostrcb *hostrcb;
4189 unsigned long lock_flags = 0;
4192 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4193 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4194 struct ipr_hostrcb, queue);
4196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4199 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
4200 sizeof(hostrcb->hcam));
4201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4205 static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
4206 struct bin_attribute *bin_attr, char *buf,
4207 loff_t off, size_t count)
4209 struct device *cdev = kobj_to_dev(kobj);
4210 struct Scsi_Host *shost = class_to_shost(cdev);
4211 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4212 struct ipr_hostrcb *hostrcb;
4213 unsigned long lock_flags = 0;
4215 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4216 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4217 struct ipr_hostrcb, queue);
4219 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4223 /* Reclaim hostrcb before exit */
4224 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
4225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4229 static struct bin_attribute ipr_ioa_async_err_log = {
4231 .name = "async_err_log",
4232 .mode = S_IRUGO | S_IWUSR,
4235 .read = ipr_read_async_err_log,
4236 .write = ipr_next_async_err_log
4239 static struct attribute *ipr_ioa_attrs[] = {
4240 &ipr_fw_version_attr.attr,
4241 &ipr_log_level_attr.attr,
4242 &ipr_diagnostics_attr.attr,
4243 &ipr_ioa_state_attr.attr,
4244 &ipr_ioa_reset_attr.attr,
4245 &ipr_update_fw_attr.attr,
4246 &ipr_ioa_fw_type_attr.attr,
4247 &ipr_iopoll_weight_attr.attr,
4251 ATTRIBUTE_GROUPS(ipr_ioa);
4253 #ifdef CONFIG_SCSI_IPR_DUMP
4255 * ipr_read_dump - Dump the adapter
4256 * @filp: open sysfs file
4257 * @kobj: kobject struct
4258 * @bin_attr: bin_attribute struct
4261 * @count: buffer size
4264 * number of bytes printed to buffer
4266 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4267 struct bin_attribute *bin_attr,
4268 char *buf, loff_t off, size_t count)
4270 struct device *cdev = kobj_to_dev(kobj);
4271 struct Scsi_Host *shost = class_to_shost(cdev);
4272 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4273 struct ipr_dump *dump;
4274 unsigned long lock_flags = 0;
4279 if (!capable(CAP_SYS_ADMIN))
4282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4283 dump = ioa_cfg->dump;
4285 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4289 kref_get(&dump->kref);
4290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4292 if (off > dump->driver_dump.hdr.len) {
4293 kref_put(&dump->kref, ipr_release_dump);
4297 if (off + count > dump->driver_dump.hdr.len) {
4298 count = dump->driver_dump.hdr.len - off;
4302 if (count && off < sizeof(dump->driver_dump)) {
4303 if (off + count > sizeof(dump->driver_dump))
4304 len = sizeof(dump->driver_dump) - off;
4307 src = (u8 *)&dump->driver_dump + off;
4308 memcpy(buf, src, len);
4314 off -= sizeof(dump->driver_dump);
4317 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4318 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4319 sizeof(struct ipr_sdt_entry));
4321 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4322 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4324 if (count && off < sdt_end) {
4325 if (off + count > sdt_end)
4326 len = sdt_end - off;
4329 src = (u8 *)&dump->ioa_dump + off;
4330 memcpy(buf, src, len);
4339 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4340 len = PAGE_ALIGN(off) - off;
4343 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4344 src += off & ~PAGE_MASK;
4345 memcpy(buf, src, len);
4351 kref_put(&dump->kref, ipr_release_dump);
4356 * ipr_alloc_dump - Prepare for adapter dump
4357 * @ioa_cfg: ioa config struct
4360 * 0 on success / other on failure
4362 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4364 struct ipr_dump *dump;
4366 unsigned long lock_flags = 0;
4368 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4371 ipr_err("Dump memory allocation failed\n");
4376 ioa_data = vmalloc(array_size(IPR_FMT3_MAX_NUM_DUMP_PAGES,
4379 ioa_data = vmalloc(array_size(IPR_FMT2_MAX_NUM_DUMP_PAGES,
4383 ipr_err("Dump memory allocation failed\n");
4388 dump->ioa_dump.ioa_data = ioa_data;
4390 kref_init(&dump->kref);
4391 dump->ioa_cfg = ioa_cfg;
4393 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4395 if (INACTIVE != ioa_cfg->sdt_state) {
4396 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4397 vfree(dump->ioa_dump.ioa_data);
4402 ioa_cfg->dump = dump;
4403 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4404 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4405 ioa_cfg->dump_taken = 1;
4406 schedule_work(&ioa_cfg->work_q);
4408 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4414 * ipr_free_dump - Free adapter dump memory
4415 * @ioa_cfg: ioa config struct
4418 * 0 on success / other on failure
4420 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4422 struct ipr_dump *dump;
4423 unsigned long lock_flags = 0;
4427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4428 dump = ioa_cfg->dump;
4430 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4434 ioa_cfg->dump = NULL;
4435 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4437 kref_put(&dump->kref, ipr_release_dump);
4444 * ipr_write_dump - Setup dump state of adapter
4445 * @filp: open sysfs file
4446 * @kobj: kobject struct
4447 * @bin_attr: bin_attribute struct
4450 * @count: buffer size
4453 * number of bytes printed to buffer
4455 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4456 struct bin_attribute *bin_attr,
4457 char *buf, loff_t off, size_t count)
4459 struct device *cdev = kobj_to_dev(kobj);
4460 struct Scsi_Host *shost = class_to_shost(cdev);
4461 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4464 if (!capable(CAP_SYS_ADMIN))
4468 rc = ipr_alloc_dump(ioa_cfg);
4469 else if (buf[0] == '0')
4470 rc = ipr_free_dump(ioa_cfg);
4480 static struct bin_attribute ipr_dump_attr = {
4483 .mode = S_IRUSR | S_IWUSR,
4486 .read = ipr_read_dump,
4487 .write = ipr_write_dump
4490 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4494 * ipr_change_queue_depth - Change the device's queue depth
4495 * @sdev: scsi device struct
4496 * @qdepth: depth to set
4501 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4503 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4504 struct ipr_resource_entry *res;
4505 unsigned long lock_flags = 0;
4507 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4508 res = (struct ipr_resource_entry *)sdev->hostdata;
4510 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4511 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4514 scsi_change_queue_depth(sdev, qdepth);
4515 return sdev->queue_depth;
4519 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4520 * @dev: device struct
4521 * @attr: device attribute structure
4525 * number of bytes printed to buffer
4527 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4529 struct scsi_device *sdev = to_scsi_device(dev);
4530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4531 struct ipr_resource_entry *res;
4532 unsigned long lock_flags = 0;
4533 ssize_t len = -ENXIO;
4535 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4536 res = (struct ipr_resource_entry *)sdev->hostdata;
4538 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4543 static struct device_attribute ipr_adapter_handle_attr = {
4545 .name = "adapter_handle",
4548 .show = ipr_show_adapter_handle
4552 * ipr_show_resource_path - Show the resource path or the resource address for
4554 * @dev: device struct
4555 * @attr: device attribute structure
4559 * number of bytes printed to buffer
4561 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4563 struct scsi_device *sdev = to_scsi_device(dev);
4564 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4565 struct ipr_resource_entry *res;
4566 unsigned long lock_flags = 0;
4567 ssize_t len = -ENXIO;
4568 char buffer[IPR_MAX_RES_PATH_LENGTH];
4570 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4571 res = (struct ipr_resource_entry *)sdev->hostdata;
4572 if (res && ioa_cfg->sis64)
4573 len = snprintf(buf, PAGE_SIZE, "%s\n",
4574 __ipr_format_res_path(res->res_path, buffer,
4577 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4578 res->bus, res->target, res->lun);
4580 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4584 static struct device_attribute ipr_resource_path_attr = {
4586 .name = "resource_path",
4589 .show = ipr_show_resource_path
4593 * ipr_show_device_id - Show the device_id for this device.
4594 * @dev: device struct
4595 * @attr: device attribute structure
4599 * number of bytes printed to buffer
4601 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4603 struct scsi_device *sdev = to_scsi_device(dev);
4604 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4605 struct ipr_resource_entry *res;
4606 unsigned long lock_flags = 0;
4607 ssize_t len = -ENXIO;
4609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4610 res = (struct ipr_resource_entry *)sdev->hostdata;
4611 if (res && ioa_cfg->sis64)
4612 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4614 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4616 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4620 static struct device_attribute ipr_device_id_attr = {
4622 .name = "device_id",
4625 .show = ipr_show_device_id
4629 * ipr_show_resource_type - Show the resource type for this device.
4630 * @dev: device struct
4631 * @attr: device attribute structure
4635 * number of bytes printed to buffer
4637 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4639 struct scsi_device *sdev = to_scsi_device(dev);
4640 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4641 struct ipr_resource_entry *res;
4642 unsigned long lock_flags = 0;
4643 ssize_t len = -ENXIO;
4645 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4646 res = (struct ipr_resource_entry *)sdev->hostdata;
4649 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4655 static struct device_attribute ipr_resource_type_attr = {
4657 .name = "resource_type",
4660 .show = ipr_show_resource_type
4664 * ipr_show_raw_mode - Show the adapter's raw mode
4665 * @dev: class device struct
4666 * @attr: device attribute (unused)
4670 * number of bytes printed to buffer
4672 static ssize_t ipr_show_raw_mode(struct device *dev,
4673 struct device_attribute *attr, char *buf)
4675 struct scsi_device *sdev = to_scsi_device(dev);
4676 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4677 struct ipr_resource_entry *res;
4678 unsigned long lock_flags = 0;
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 res = (struct ipr_resource_entry *)sdev->hostdata;
4684 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4692 * ipr_store_raw_mode - Change the adapter's raw mode
4693 * @dev: class device struct
4694 * @attr: device attribute (unused)
4696 * @count: buffer size
4699 * number of bytes printed to buffer
4701 static ssize_t ipr_store_raw_mode(struct device *dev,
4702 struct device_attribute *attr,
4703 const char *buf, size_t count)
4705 struct scsi_device *sdev = to_scsi_device(dev);
4706 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4707 struct ipr_resource_entry *res;
4708 unsigned long lock_flags = 0;
4711 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4712 res = (struct ipr_resource_entry *)sdev->hostdata;
4714 if (ipr_is_af_dasd_device(res)) {
4715 res->raw_mode = simple_strtoul(buf, NULL, 10);
4718 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4719 res->raw_mode ? "enabled" : "disabled");
4724 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4728 static struct device_attribute ipr_raw_mode_attr = {
4731 .mode = S_IRUGO | S_IWUSR,
4733 .show = ipr_show_raw_mode,
4734 .store = ipr_store_raw_mode
4737 static struct attribute *ipr_dev_attrs[] = {
4738 &ipr_adapter_handle_attr.attr,
4739 &ipr_resource_path_attr.attr,
4740 &ipr_device_id_attr.attr,
4741 &ipr_resource_type_attr.attr,
4742 &ipr_raw_mode_attr.attr,
4746 ATTRIBUTE_GROUPS(ipr_dev);
4749 * ipr_biosparam - Return the HSC mapping
4750 * @sdev: scsi device struct
4751 * @block_device: block device pointer
4752 * @capacity: capacity of the device
4753 * @parm: Array containing returned HSC values.
4755 * This function generates the HSC parms that fdisk uses.
4756 * We want to make sure we return something that places partitions
4757 * on 4k boundaries for best performance with the IOA.
4762 static int ipr_biosparam(struct scsi_device *sdev,
4763 struct block_device *block_device,
4764 sector_t capacity, int *parm)
4772 cylinders = capacity;
4773 sector_div(cylinders, (128 * 32));
4778 parm[2] = cylinders;
4784 * ipr_find_starget - Find target based on bus/target.
4785 * @starget: scsi target struct
4788 * resource entry pointer if found / NULL if not found
4790 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4792 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4793 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4794 struct ipr_resource_entry *res;
4796 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4797 if ((res->bus == starget->channel) &&
4798 (res->target == starget->id)) {
4806 static struct ata_port_info sata_port_info;
4809 * ipr_target_alloc - Prepare for commands to a SCSI target
4810 * @starget: scsi target struct
4812 * If the device is a SATA device, this function allocates an
4813 * ATA port with libata, else it does nothing.
4816 * 0 on success / non-0 on failure
4818 static int ipr_target_alloc(struct scsi_target *starget)
4820 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4821 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4822 struct ipr_sata_port *sata_port;
4823 struct ata_port *ap;
4824 struct ipr_resource_entry *res;
4825 unsigned long lock_flags;
4827 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4828 res = ipr_find_starget(starget);
4829 starget->hostdata = NULL;
4831 if (res && ipr_is_gata(res)) {
4832 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4833 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4837 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4839 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4840 sata_port->ioa_cfg = ioa_cfg;
4842 sata_port->res = res;
4844 res->sata_port = sata_port;
4845 ap->private_data = sata_port;
4846 starget->hostdata = sata_port;
4852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4858 * ipr_target_destroy - Destroy a SCSI target
4859 * @starget: scsi target struct
4861 * If the device was a SATA device, this function frees the libata
4862 * ATA port, else it does nothing.
4865 static void ipr_target_destroy(struct scsi_target *starget)
4867 struct ipr_sata_port *sata_port = starget->hostdata;
4868 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4869 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4871 if (ioa_cfg->sis64) {
4872 if (!ipr_find_starget(starget)) {
4873 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4874 clear_bit(starget->id, ioa_cfg->array_ids);
4875 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4876 clear_bit(starget->id, ioa_cfg->vset_ids);
4877 else if (starget->channel == 0)
4878 clear_bit(starget->id, ioa_cfg->target_ids);
4883 starget->hostdata = NULL;
4884 ata_sas_port_destroy(sata_port->ap);
4890 * ipr_find_sdev - Find device based on bus/target/lun.
4891 * @sdev: scsi device struct
4894 * resource entry pointer if found / NULL if not found
4896 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4898 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4899 struct ipr_resource_entry *res;
4901 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4902 if ((res->bus == sdev->channel) &&
4903 (res->target == sdev->id) &&
4904 (res->lun == sdev->lun))
4912 * ipr_slave_destroy - Unconfigure a SCSI device
4913 * @sdev: scsi device struct
4918 static void ipr_slave_destroy(struct scsi_device *sdev)
4920 struct ipr_resource_entry *res;
4921 struct ipr_ioa_cfg *ioa_cfg;
4922 unsigned long lock_flags = 0;
4924 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4926 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4927 res = (struct ipr_resource_entry *) sdev->hostdata;
4930 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4931 sdev->hostdata = NULL;
4933 res->sata_port = NULL;
4935 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4939 * ipr_slave_configure - Configure a SCSI device
4940 * @sdev: scsi device struct
4942 * This function configures the specified scsi device.
4947 static int ipr_slave_configure(struct scsi_device *sdev)
4949 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4950 struct ipr_resource_entry *res;
4951 struct ata_port *ap = NULL;
4952 unsigned long lock_flags = 0;
4953 char buffer[IPR_MAX_RES_PATH_LENGTH];
4955 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4956 res = sdev->hostdata;
4958 if (ipr_is_af_dasd_device(res))
4959 sdev->type = TYPE_RAID;
4960 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4961 sdev->scsi_level = 4;
4962 sdev->no_uld_attach = 1;
4964 if (ipr_is_vset_device(res)) {
4965 sdev->scsi_level = SCSI_SPC_3;
4966 sdev->no_report_opcodes = 1;
4967 blk_queue_rq_timeout(sdev->request_queue,
4968 IPR_VSET_RW_TIMEOUT);
4969 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4971 if (ipr_is_gata(res) && res->sata_port)
4972 ap = res->sata_port->ap;
4973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4976 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4977 ata_sas_slave_configure(sdev, ap);
4981 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4982 ipr_format_res_path(ioa_cfg,
4983 res->res_path, buffer, sizeof(buffer)));
4986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4991 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4992 * @sdev: scsi device struct
4994 * This function initializes an ATA port so that future commands
4995 * sent through queuecommand will work.
5000 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
5002 struct ipr_sata_port *sata_port = NULL;
5006 if (sdev->sdev_target)
5007 sata_port = sdev->sdev_target->hostdata;
5009 rc = ata_sas_port_init(sata_port->ap);
5011 rc = ata_sas_sync_probe(sata_port->ap);
5015 ipr_slave_destroy(sdev);
5022 * ipr_slave_alloc - Prepare for commands to a device.
5023 * @sdev: scsi device struct
5025 * This function saves a pointer to the resource entry
5026 * in the scsi device struct if the device exists. We
5027 * can then use this pointer in ipr_queuecommand when
5028 * handling new commands.
5031 * 0 on success / -ENXIO if device does not exist
5033 static int ipr_slave_alloc(struct scsi_device *sdev)
5035 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
5036 struct ipr_resource_entry *res;
5037 unsigned long lock_flags;
5040 sdev->hostdata = NULL;
5042 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5044 res = ipr_find_sdev(sdev);
5049 sdev->hostdata = res;
5050 if (!ipr_is_naca_model(res))
5051 res->needs_sync_complete = 1;
5053 if (ipr_is_gata(res)) {
5054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5055 return ipr_ata_slave_alloc(sdev);
5059 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5065 * ipr_match_lun - Match function for specified LUN
5066 * @ipr_cmd: ipr command struct
5067 * @device: device to match (sdev)
5070 * 1 if command matches sdev / 0 if command does not match sdev
5072 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
5074 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
5080 * ipr_cmnd_is_free - Check if a command is free or not
5081 * @ipr_cmd: ipr command struct
5086 static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd)
5088 struct ipr_cmnd *loop_cmd;
5090 list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) {
5091 if (loop_cmd == ipr_cmd)
5099 * ipr_match_res - Match function for specified resource entry
5100 * @ipr_cmd: ipr command struct
5101 * @resource: resource entry to match
5104 * 1 if command matches sdev / 0 if command does not match sdev
5106 static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource)
5108 struct ipr_resource_entry *res = resource;
5110 if (res && ipr_cmd->ioarcb.res_handle == res->res_handle)
5116 * ipr_wait_for_ops - Wait for matching commands to complete
5117 * @ioa_cfg: ioa config struct
5118 * @device: device to match (sdev)
5119 * @match: match function to use
5124 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
5125 int (*match)(struct ipr_cmnd *, void *))
5127 struct ipr_cmnd *ipr_cmd;
5129 unsigned long flags;
5130 struct ipr_hrr_queue *hrrq;
5131 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
5132 DECLARE_COMPLETION_ONSTACK(comp);
5138 for_each_hrrq(hrrq, ioa_cfg) {
5139 spin_lock_irqsave(hrrq->lock, flags);
5140 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5141 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5142 if (!ipr_cmnd_is_free(ipr_cmd)) {
5143 if (match(ipr_cmd, device)) {
5144 ipr_cmd->eh_comp = ∁
5149 spin_unlock_irqrestore(hrrq->lock, flags);
5153 timeout = wait_for_completion_timeout(&comp, timeout);
5158 for_each_hrrq(hrrq, ioa_cfg) {
5159 spin_lock_irqsave(hrrq->lock, flags);
5160 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5161 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5162 if (!ipr_cmnd_is_free(ipr_cmd)) {
5163 if (match(ipr_cmd, device)) {
5164 ipr_cmd->eh_comp = NULL;
5169 spin_unlock_irqrestore(hrrq->lock, flags);
5173 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
5175 return wait ? FAILED : SUCCESS;
5184 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
5186 struct ipr_ioa_cfg *ioa_cfg;
5187 unsigned long lock_flags = 0;
5191 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5192 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5194 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5195 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5196 dev_err(&ioa_cfg->pdev->dev,
5197 "Adapter being reset as a result of error recovery.\n");
5199 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5200 ioa_cfg->sdt_state = GET_DUMP;
5203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5204 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5205 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5207 /* If we got hit with a host reset while we were already resetting
5208 the adapter for some reason, and the reset failed. */
5209 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5220 * ipr_device_reset - Reset the device
5221 * @ioa_cfg: ioa config struct
5222 * @res: resource entry struct
5224 * This function issues a device reset to the affected device.
5225 * If the device is a SCSI device, a LUN reset will be sent
5226 * to the device first. If that does not work, a target reset
5227 * will be sent. If the device is a SATA device, a PHY reset will
5231 * 0 on success / non-zero on failure
5233 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5234 struct ipr_resource_entry *res)
5236 struct ipr_cmnd *ipr_cmd;
5237 struct ipr_ioarcb *ioarcb;
5238 struct ipr_cmd_pkt *cmd_pkt;
5239 struct ipr_ioarcb_ata_regs *regs;
5243 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5244 ioarcb = &ipr_cmd->ioarcb;
5245 cmd_pkt = &ioarcb->cmd_pkt;
5247 if (ipr_cmd->ioa_cfg->sis64) {
5248 regs = &ipr_cmd->i.ata_ioadl.regs;
5249 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5251 regs = &ioarcb->u.add_data.u.regs;
5253 ioarcb->res_handle = res->res_handle;
5254 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5255 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5256 if (ipr_is_gata(res)) {
5257 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5258 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5259 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5262 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5263 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5264 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5265 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5266 if (ipr_cmd->ioa_cfg->sis64)
5267 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5268 sizeof(struct ipr_ioasa_gata));
5270 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5271 sizeof(struct ipr_ioasa_gata));
5275 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5279 * ipr_sata_reset - Reset the SATA port
5280 * @link: SATA link to reset
5281 * @classes: class of the attached device
5284 * This function issues a SATA phy reset to the affected ATA link.
5287 * 0 on success / non-zero on failure
5289 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5290 unsigned long deadline)
5292 struct ipr_sata_port *sata_port = link->ap->private_data;
5293 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5294 struct ipr_resource_entry *res;
5295 unsigned long lock_flags = 0;
5296 int rc = -ENXIO, ret;
5299 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5300 while (ioa_cfg->in_reset_reload) {
5301 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5302 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5306 res = sata_port->res;
5308 rc = ipr_device_reset(ioa_cfg, res);
5309 *classes = res->ata_class;
5310 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5312 ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5313 if (ret != SUCCESS) {
5314 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5315 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5316 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5318 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5321 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5328 * __ipr_eh_dev_reset - Reset the device
5329 * @scsi_cmd: scsi command struct
5331 * This function issues a device reset to the affected device.
5332 * A LUN reset will be sent to the device first. If that does
5333 * not work, a target reset will be sent.
5338 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5340 struct ipr_cmnd *ipr_cmd;
5341 struct ipr_ioa_cfg *ioa_cfg;
5342 struct ipr_resource_entry *res;
5343 struct ata_port *ap;
5345 struct ipr_hrr_queue *hrrq;
5348 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5349 res = scsi_cmd->device->hostdata;
5352 * If we are currently going through reset/reload, return failed. This will force the
5353 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5356 if (ioa_cfg->in_reset_reload)
5358 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5361 for_each_hrrq(hrrq, ioa_cfg) {
5362 spin_lock(&hrrq->_lock);
5363 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5364 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5366 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5369 if (ipr_cmnd_is_free(ipr_cmd))
5372 ipr_cmd->done = ipr_sata_eh_done;
5373 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_EH)) {
5374 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5375 ipr_cmd->qc->flags |= ATA_QCFLAG_EH;
5379 spin_unlock(&hrrq->_lock);
5381 res->resetting_device = 1;
5382 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5384 if (ipr_is_gata(res) && res->sata_port) {
5385 ap = res->sata_port->ap;
5386 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5387 ata_std_error_handler(ap);
5388 spin_lock_irq(scsi_cmd->device->host->host_lock);
5390 rc = ipr_device_reset(ioa_cfg, res);
5391 res->resetting_device = 0;
5392 res->reset_occurred = 1;
5395 return rc ? FAILED : SUCCESS;
5398 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5401 struct ipr_ioa_cfg *ioa_cfg;
5402 struct ipr_resource_entry *res;
5404 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5405 res = cmd->device->hostdata;
5410 spin_lock_irq(cmd->device->host->host_lock);
5411 rc = __ipr_eh_dev_reset(cmd);
5412 spin_unlock_irq(cmd->device->host->host_lock);
5414 if (rc == SUCCESS) {
5415 if (ipr_is_gata(res) && res->sata_port)
5416 rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5418 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5425 * ipr_bus_reset_done - Op done function for bus reset.
5426 * @ipr_cmd: ipr command struct
5428 * This function is the op done function for a bus reset
5433 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5436 struct ipr_resource_entry *res;
5439 if (!ioa_cfg->sis64)
5440 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5441 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5442 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5448 * If abort has not completed, indicate the reset has, else call the
5449 * abort's done function to wake the sleeping eh thread
5451 if (ipr_cmd->sibling->sibling)
5452 ipr_cmd->sibling->sibling = NULL;
5454 ipr_cmd->sibling->done(ipr_cmd->sibling);
5456 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5461 * ipr_abort_timeout - An abort task has timed out
5462 * @t: Timer context used to fetch ipr command struct
5464 * This function handles when an abort task times out. If this
5465 * happens we issue a bus reset since we have resources tied
5466 * up that must be freed before returning to the midlayer.
5471 static void ipr_abort_timeout(struct timer_list *t)
5473 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
5474 struct ipr_cmnd *reset_cmd;
5475 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5476 struct ipr_cmd_pkt *cmd_pkt;
5477 unsigned long lock_flags = 0;
5480 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5481 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5482 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5486 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5487 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5488 ipr_cmd->sibling = reset_cmd;
5489 reset_cmd->sibling = ipr_cmd;
5490 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5491 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5492 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5493 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5494 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5496 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5502 * ipr_cancel_op - Cancel specified op
5503 * @scsi_cmd: scsi command struct
5505 * This function cancels specified op.
5510 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5512 struct ipr_cmnd *ipr_cmd;
5513 struct ipr_ioa_cfg *ioa_cfg;
5514 struct ipr_resource_entry *res;
5515 struct ipr_cmd_pkt *cmd_pkt;
5517 int i, op_found = 0;
5518 struct ipr_hrr_queue *hrrq;
5521 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5522 res = scsi_cmd->device->hostdata;
5524 /* If we are currently going through reset/reload, return failed.
5525 * This will force the mid-layer to call ipr_eh_host_reset,
5526 * which will then go to sleep and wait for the reset to complete
5528 if (ioa_cfg->in_reset_reload ||
5529 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5535 * If we are aborting a timed out op, chances are that the timeout was caused
5536 * by a still not detected EEH error. In such cases, reading a register will
5537 * trigger the EEH recovery infrastructure.
5539 readl(ioa_cfg->regs.sense_interrupt_reg);
5541 if (!ipr_is_gscsi(res))
5544 for_each_hrrq(hrrq, ioa_cfg) {
5545 spin_lock(&hrrq->_lock);
5546 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5547 if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) {
5548 if (!ipr_cmnd_is_free(ioa_cfg->ipr_cmnd_list[i])) {
5554 spin_unlock(&hrrq->_lock);
5560 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5561 ipr_cmd->ioarcb.res_handle = res->res_handle;
5562 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5563 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5564 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5565 ipr_cmd->u.sdev = scsi_cmd->device;
5567 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5569 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5570 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5573 * If the abort task timed out and we sent a bus reset, we will get
5574 * one the following responses to the abort
5576 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5581 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5582 if (!ipr_is_naca_model(res))
5583 res->needs_sync_complete = 1;
5586 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5590 * ipr_scan_finished - Report whether scan is done
5591 * @shost: scsi host struct
5592 * @elapsed_time: elapsed time
5595 * 0 if scan in progress / 1 if scan is complete
5597 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5599 unsigned long lock_flags;
5600 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5603 spin_lock_irqsave(shost->host_lock, lock_flags);
5604 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5606 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5608 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5613 * ipr_eh_abort - Reset the host adapter
5614 * @scsi_cmd: scsi command struct
5619 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5621 unsigned long flags;
5623 struct ipr_ioa_cfg *ioa_cfg;
5627 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5629 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5630 rc = ipr_cancel_op(scsi_cmd);
5631 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5634 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5640 * ipr_handle_other_interrupt - Handle "other" interrupts
5641 * @ioa_cfg: ioa config struct
5642 * @int_reg: interrupt register
5645 * IRQ_NONE / IRQ_HANDLED
5647 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5650 irqreturn_t rc = IRQ_HANDLED;
5653 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5654 int_reg &= ~int_mask_reg;
5656 /* If an interrupt on the adapter did not occur, ignore it.
5657 * Or in the case of SIS 64, check for a stage change interrupt.
5659 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5660 if (ioa_cfg->sis64) {
5661 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5662 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5663 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5665 /* clear stage change */
5666 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5667 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5668 list_del(&ioa_cfg->reset_cmd->queue);
5669 del_timer(&ioa_cfg->reset_cmd->timer);
5670 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5678 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5679 /* Mask the interrupt */
5680 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5681 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5683 list_del(&ioa_cfg->reset_cmd->queue);
5684 del_timer(&ioa_cfg->reset_cmd->timer);
5685 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5686 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5687 if (ioa_cfg->clear_isr) {
5688 if (ipr_debug && printk_ratelimit())
5689 dev_err(&ioa_cfg->pdev->dev,
5690 "Spurious interrupt detected. 0x%08X\n", int_reg);
5691 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5692 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5696 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5697 ioa_cfg->ioa_unit_checked = 1;
5698 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5699 dev_err(&ioa_cfg->pdev->dev,
5700 "No Host RRQ. 0x%08X\n", int_reg);
5702 dev_err(&ioa_cfg->pdev->dev,
5703 "Permanent IOA failure. 0x%08X\n", int_reg);
5705 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5706 ioa_cfg->sdt_state = GET_DUMP;
5708 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5709 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5716 * ipr_isr_eh - Interrupt service routine error handler
5717 * @ioa_cfg: ioa config struct
5718 * @msg: message to log
5719 * @number: various meanings depending on the caller/message
5724 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5726 ioa_cfg->errors_logged++;
5727 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5729 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5730 ioa_cfg->sdt_state = GET_DUMP;
5732 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5735 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5736 struct list_head *doneq)
5740 struct ipr_cmnd *ipr_cmd;
5741 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5744 /* If interrupts are disabled, ignore the interrupt */
5745 if (!hrr_queue->allow_interrupts)
5748 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5749 hrr_queue->toggle_bit) {
5751 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5752 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5753 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5755 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5756 cmd_index < hrr_queue->min_cmd_id)) {
5758 "Invalid response handle from IOA: ",
5763 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5764 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5766 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5768 list_move_tail(&ipr_cmd->queue, doneq);
5770 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5771 hrr_queue->hrrq_curr++;
5773 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5774 hrr_queue->toggle_bit ^= 1u;
5777 if (budget > 0 && num_hrrq >= budget)
5784 static int ipr_iopoll(struct irq_poll *iop, int budget)
5786 struct ipr_hrr_queue *hrrq;
5787 struct ipr_cmnd *ipr_cmd, *temp;
5788 unsigned long hrrq_flags;
5792 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5794 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5795 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5797 if (completed_ops < budget)
5798 irq_poll_complete(iop);
5799 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5801 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5802 list_del(&ipr_cmd->queue);
5803 del_timer(&ipr_cmd->timer);
5804 ipr_cmd->fast_done(ipr_cmd);
5807 return completed_ops;
5811 * ipr_isr - Interrupt service routine
5813 * @devp: pointer to ioa config struct
5816 * IRQ_NONE / IRQ_HANDLED
5818 static irqreturn_t ipr_isr(int irq, void *devp)
5820 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5821 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5822 unsigned long hrrq_flags = 0;
5826 struct ipr_cmnd *ipr_cmd, *temp;
5827 irqreturn_t rc = IRQ_NONE;
5830 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5831 /* If interrupts are disabled, ignore the interrupt */
5832 if (!hrrq->allow_interrupts) {
5833 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5838 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5841 if (!ioa_cfg->clear_isr)
5844 /* Clear the PCI interrupt */
5847 writel(IPR_PCII_HRRQ_UPDATED,
5848 ioa_cfg->regs.clr_interrupt_reg32);
5849 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5850 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5851 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5853 } else if (rc == IRQ_NONE && irq_none == 0) {
5854 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5856 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5857 int_reg & IPR_PCII_HRRQ_UPDATED) {
5859 "Error clearing HRRQ: ", num_hrrq);
5866 if (unlikely(rc == IRQ_NONE))
5867 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5869 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5870 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5871 list_del(&ipr_cmd->queue);
5872 del_timer(&ipr_cmd->timer);
5873 ipr_cmd->fast_done(ipr_cmd);
5879 * ipr_isr_mhrrq - Interrupt service routine
5881 * @devp: pointer to ioa config struct
5884 * IRQ_NONE / IRQ_HANDLED
5886 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5888 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5889 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5890 unsigned long hrrq_flags = 0;
5891 struct ipr_cmnd *ipr_cmd, *temp;
5892 irqreturn_t rc = IRQ_NONE;
5895 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5897 /* If interrupts are disabled, ignore the interrupt */
5898 if (!hrrq->allow_interrupts) {
5899 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5903 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5904 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5906 irq_poll_sched(&hrrq->iopoll);
5907 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5911 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5914 if (ipr_process_hrrq(hrrq, -1, &doneq))
5918 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5920 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5921 list_del(&ipr_cmd->queue);
5922 del_timer(&ipr_cmd->timer);
5923 ipr_cmd->fast_done(ipr_cmd);
5929 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5930 * @ioa_cfg: ioa config struct
5931 * @ipr_cmd: ipr command struct
5934 * 0 on success / -1 on failure
5936 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5937 struct ipr_cmnd *ipr_cmd)
5940 struct scatterlist *sg;
5942 u32 ioadl_flags = 0;
5943 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5944 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5945 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5947 length = scsi_bufflen(scsi_cmd);
5951 nseg = scsi_dma_map(scsi_cmd);
5953 if (printk_ratelimit())
5954 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5958 ipr_cmd->dma_use_sg = nseg;
5960 ioarcb->data_transfer_length = cpu_to_be32(length);
5962 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5964 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5965 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5966 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5967 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5968 ioadl_flags = IPR_IOADL_FLAGS_READ;
5970 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5971 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5972 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5973 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5976 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5981 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5982 * @ioa_cfg: ioa config struct
5983 * @ipr_cmd: ipr command struct
5986 * 0 on success / -1 on failure
5988 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5989 struct ipr_cmnd *ipr_cmd)
5992 struct scatterlist *sg;
5994 u32 ioadl_flags = 0;
5995 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5996 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5997 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5999 length = scsi_bufflen(scsi_cmd);
6003 nseg = scsi_dma_map(scsi_cmd);
6005 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
6009 ipr_cmd->dma_use_sg = nseg;
6011 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
6012 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6013 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6014 ioarcb->data_transfer_length = cpu_to_be32(length);
6016 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6017 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
6018 ioadl_flags = IPR_IOADL_FLAGS_READ;
6019 ioarcb->read_data_transfer_length = cpu_to_be32(length);
6020 ioarcb->read_ioadl_len =
6021 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6024 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
6025 ioadl = ioarcb->u.add_data.u.ioadl;
6026 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
6027 offsetof(struct ipr_ioarcb, u.add_data));
6028 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6031 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
6032 ioadl[i].flags_and_data_len =
6033 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6034 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
6037 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6042 * __ipr_erp_done - Process completion of ERP for a device
6043 * @ipr_cmd: ipr command struct
6045 * This function copies the sense buffer into the scsi_cmd
6046 * struct and pushes the scsi_done function.
6051 static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6053 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6054 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6055 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6057 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6058 scsi_cmd->result |= (DID_ERROR << 16);
6059 scmd_printk(KERN_ERR, scsi_cmd,
6060 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
6062 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
6063 SCSI_SENSE_BUFFERSIZE);
6067 if (!ipr_is_naca_model(res))
6068 res->needs_sync_complete = 1;
6071 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6072 scsi_done(scsi_cmd);
6073 if (ipr_cmd->eh_comp)
6074 complete(ipr_cmd->eh_comp);
6075 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6079 * ipr_erp_done - Process completion of ERP for a device
6080 * @ipr_cmd: ipr command struct
6082 * This function copies the sense buffer into the scsi_cmd
6083 * struct and pushes the scsi_done function.
6088 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6090 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6091 unsigned long hrrq_flags;
6093 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6094 __ipr_erp_done(ipr_cmd);
6095 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6099 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
6100 * @ipr_cmd: ipr command struct
6105 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
6107 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6108 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6109 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6111 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
6112 ioarcb->data_transfer_length = 0;
6113 ioarcb->read_data_transfer_length = 0;
6114 ioarcb->ioadl_len = 0;
6115 ioarcb->read_ioadl_len = 0;
6116 ioasa->hdr.ioasc = 0;
6117 ioasa->hdr.residual_data_len = 0;
6119 if (ipr_cmd->ioa_cfg->sis64)
6120 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6121 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
6123 ioarcb->write_ioadl_addr =
6124 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
6125 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6130 * __ipr_erp_request_sense - Send request sense to a device
6131 * @ipr_cmd: ipr command struct
6133 * This function sends a request sense to a device as a result
6134 * of a check condition.
6139 static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6141 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6142 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6144 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6145 __ipr_erp_done(ipr_cmd);
6149 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6151 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
6152 cmd_pkt->cdb[0] = REQUEST_SENSE;
6153 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
6154 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
6155 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6156 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
6158 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
6159 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
6161 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
6162 IPR_REQUEST_SENSE_TIMEOUT * 2);
6166 * ipr_erp_request_sense - Send request sense to a device
6167 * @ipr_cmd: ipr command struct
6169 * This function sends a request sense to a device as a result
6170 * of a check condition.
6175 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6177 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6178 unsigned long hrrq_flags;
6180 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6181 __ipr_erp_request_sense(ipr_cmd);
6182 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6186 * ipr_erp_cancel_all - Send cancel all to a device
6187 * @ipr_cmd: ipr command struct
6189 * This function sends a cancel all to a device to clear the
6190 * queue. If we are running TCQ on the device, QERR is set to 1,
6191 * which means all outstanding ops have been dropped on the floor.
6192 * Cancel all will return them to us.
6197 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
6199 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6200 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6201 struct ipr_cmd_pkt *cmd_pkt;
6205 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6207 if (!scsi_cmd->device->simple_tags) {
6208 __ipr_erp_request_sense(ipr_cmd);
6212 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6213 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
6214 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
6216 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
6217 IPR_CANCEL_ALL_TIMEOUT);
6221 * ipr_dump_ioasa - Dump contents of IOASA
6222 * @ioa_cfg: ioa config struct
6223 * @ipr_cmd: ipr command struct
6224 * @res: resource entry struct
6226 * This function is invoked by the interrupt handler when ops
6227 * fail. It will log the IOASA if appropriate. Only called
6233 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
6234 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
6238 u32 ioasc, fd_ioasc;
6239 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6240 __be32 *ioasa_data = (__be32 *)ioasa;
6243 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
6244 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
6249 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6252 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6253 error_index = ipr_get_error(fd_ioasc);
6255 error_index = ipr_get_error(ioasc);
6257 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6258 /* Don't log an error if the IOA already logged one */
6259 if (ioasa->hdr.ilid != 0)
6262 if (!ipr_is_gscsi(res))
6265 if (ipr_error_table[error_index].log_ioasa == 0)
6269 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6271 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6272 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6273 data_len = sizeof(struct ipr_ioasa64);
6274 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6275 data_len = sizeof(struct ipr_ioasa);
6277 ipr_err("IOASA Dump:\n");
6279 for (i = 0; i < data_len / 4; i += 4) {
6280 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6281 be32_to_cpu(ioasa_data[i]),
6282 be32_to_cpu(ioasa_data[i+1]),
6283 be32_to_cpu(ioasa_data[i+2]),
6284 be32_to_cpu(ioasa_data[i+3]));
6289 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6290 * @ipr_cmd: ipr command struct
6295 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6298 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6299 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6300 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6301 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6303 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6305 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6308 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6310 if (ipr_is_vset_device(res) &&
6311 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6312 ioasa->u.vset.failing_lba_hi != 0) {
6313 sense_buf[0] = 0x72;
6314 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6315 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6316 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6320 sense_buf[9] = 0x0A;
6321 sense_buf[10] = 0x80;
6323 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6325 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6326 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6327 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6328 sense_buf[15] = failing_lba & 0x000000ff;
6330 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6332 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6333 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6334 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6335 sense_buf[19] = failing_lba & 0x000000ff;
6337 sense_buf[0] = 0x70;
6338 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6339 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6340 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6342 /* Illegal request */
6343 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6344 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6345 sense_buf[7] = 10; /* additional length */
6347 /* IOARCB was in error */
6348 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6349 sense_buf[15] = 0xC0;
6350 else /* Parameter data was invalid */
6351 sense_buf[15] = 0x80;
6354 ((IPR_FIELD_POINTER_MASK &
6355 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6357 (IPR_FIELD_POINTER_MASK &
6358 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6360 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6361 if (ipr_is_vset_device(res))
6362 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6364 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6366 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6367 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6368 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6369 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6370 sense_buf[6] = failing_lba & 0x000000ff;
6373 sense_buf[7] = 6; /* additional length */
6379 * ipr_get_autosense - Copy autosense data to sense buffer
6380 * @ipr_cmd: ipr command struct
6382 * This function copies the autosense buffer to the buffer
6383 * in the scsi_cmd, if there is autosense available.
6386 * 1 if autosense was available / 0 if not
6388 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6390 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6391 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6393 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6396 if (ipr_cmd->ioa_cfg->sis64)
6397 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6398 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6399 SCSI_SENSE_BUFFERSIZE));
6401 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6402 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6403 SCSI_SENSE_BUFFERSIZE));
6408 * ipr_erp_start - Process an error response for a SCSI op
6409 * @ioa_cfg: ioa config struct
6410 * @ipr_cmd: ipr command struct
6412 * This function determines whether or not to initiate ERP
6413 * on the affected device.
6418 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6419 struct ipr_cmnd *ipr_cmd)
6421 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6422 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6423 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6424 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6427 __ipr_scsi_eh_done(ipr_cmd);
6431 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6432 ipr_gen_sense(ipr_cmd);
6434 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6436 switch (masked_ioasc) {
6437 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6438 if (ipr_is_naca_model(res))
6439 scsi_cmd->result |= (DID_ABORT << 16);
6441 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6443 case IPR_IOASC_IR_RESOURCE_HANDLE:
6444 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6445 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6447 case IPR_IOASC_HW_SEL_TIMEOUT:
6448 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6449 if (!ipr_is_naca_model(res))
6450 res->needs_sync_complete = 1;
6452 case IPR_IOASC_SYNC_REQUIRED:
6454 res->needs_sync_complete = 1;
6455 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6457 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6458 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6460 * exception: do not set DID_PASSTHROUGH on CHECK CONDITION
6461 * so SCSI mid-layer and upper layers handle it accordingly.
6463 if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION)
6464 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6466 case IPR_IOASC_BUS_WAS_RESET:
6467 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6469 * Report the bus reset and ask for a retry. The device
6470 * will give CC/UA the next command.
6472 if (!res->resetting_device)
6473 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6474 scsi_cmd->result |= (DID_ERROR << 16);
6475 if (!ipr_is_naca_model(res))
6476 res->needs_sync_complete = 1;
6478 case IPR_IOASC_HW_DEV_BUS_STATUS:
6479 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6480 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6481 if (!ipr_get_autosense(ipr_cmd)) {
6482 if (!ipr_is_naca_model(res)) {
6483 ipr_erp_cancel_all(ipr_cmd);
6488 if (!ipr_is_naca_model(res))
6489 res->needs_sync_complete = 1;
6491 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6493 case IPR_IOASC_IR_NON_OPTIMIZED:
6494 if (res->raw_mode) {
6496 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6498 scsi_cmd->result |= (DID_ERROR << 16);
6501 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6502 scsi_cmd->result |= (DID_ERROR << 16);
6503 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6504 res->needs_sync_complete = 1;
6508 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6509 scsi_done(scsi_cmd);
6510 if (ipr_cmd->eh_comp)
6511 complete(ipr_cmd->eh_comp);
6512 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6516 * ipr_scsi_done - mid-layer done function
6517 * @ipr_cmd: ipr command struct
6519 * This function is invoked by the interrupt handler for
6520 * ops generated by the SCSI mid-layer
6525 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6527 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6528 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6529 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6530 unsigned long lock_flags;
6532 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6534 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6535 scsi_dma_unmap(scsi_cmd);
6537 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6538 scsi_done(scsi_cmd);
6539 if (ipr_cmd->eh_comp)
6540 complete(ipr_cmd->eh_comp);
6541 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6542 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6544 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6545 spin_lock(&ipr_cmd->hrrq->_lock);
6546 ipr_erp_start(ioa_cfg, ipr_cmd);
6547 spin_unlock(&ipr_cmd->hrrq->_lock);
6548 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6553 * ipr_queuecommand - Queue a mid-layer request
6554 * @shost: scsi host struct
6555 * @scsi_cmd: scsi command struct
6557 * This function queues a request generated by the mid-layer.
6561 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6562 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6564 static int ipr_queuecommand(struct Scsi_Host *shost,
6565 struct scsi_cmnd *scsi_cmd)
6567 struct ipr_ioa_cfg *ioa_cfg;
6568 struct ipr_resource_entry *res;
6569 struct ipr_ioarcb *ioarcb;
6570 struct ipr_cmnd *ipr_cmd;
6571 unsigned long hrrq_flags, lock_flags;
6573 struct ipr_hrr_queue *hrrq;
6576 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6578 scsi_cmd->result = (DID_OK << 16);
6579 res = scsi_cmd->device->hostdata;
6581 if (ipr_is_gata(res) && res->sata_port) {
6582 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6583 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6584 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6588 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6589 hrrq = &ioa_cfg->hrrq[hrrq_id];
6591 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6593 * We are currently blocking all devices due to a host reset
6594 * We have told the host to stop giving us new requests, but
6595 * ERP ops don't count. FIXME
6597 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6598 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6599 return SCSI_MLQUEUE_HOST_BUSY;
6603 * FIXME - Create scsi_set_host_offline interface
6604 * and the ioa_is_dead check can be removed
6606 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6607 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6611 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6612 if (ipr_cmd == NULL) {
6613 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6614 return SCSI_MLQUEUE_HOST_BUSY;
6616 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6618 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6619 ioarcb = &ipr_cmd->ioarcb;
6621 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6622 ipr_cmd->scsi_cmd = scsi_cmd;
6623 ipr_cmd->done = ipr_scsi_eh_done;
6625 if (ipr_is_gscsi(res)) {
6626 if (scsi_cmd->underflow == 0)
6627 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6629 if (res->reset_occurred) {
6630 res->reset_occurred = 0;
6631 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6635 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6636 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6638 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6639 if (scsi_cmd->flags & SCMD_TAGGED)
6640 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6642 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6645 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6646 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6647 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6649 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6650 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6652 if (scsi_cmd->underflow == 0)
6653 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6657 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6659 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6661 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6662 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6663 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6664 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6666 scsi_dma_unmap(scsi_cmd);
6667 return SCSI_MLQUEUE_HOST_BUSY;
6670 if (unlikely(hrrq->ioa_is_dead)) {
6671 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6672 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6673 scsi_dma_unmap(scsi_cmd);
6677 ioarcb->res_handle = res->res_handle;
6678 if (res->needs_sync_complete) {
6679 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6680 res->needs_sync_complete = 0;
6682 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6683 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6684 ipr_send_command(ipr_cmd);
6685 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6689 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6690 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6691 scsi_cmd->result = (DID_NO_CONNECT << 16);
6692 scsi_done(scsi_cmd);
6693 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6698 * ipr_ioctl - IOCTL handler
6699 * @sdev: scsi device struct
6704 * 0 on success / other on failure
6706 static int ipr_ioctl(struct scsi_device *sdev, unsigned int cmd,
6709 struct ipr_resource_entry *res;
6711 res = (struct ipr_resource_entry *)sdev->hostdata;
6712 if (res && ipr_is_gata(res)) {
6713 if (cmd == HDIO_GET_IDENTITY)
6715 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6722 * ipr_ioa_info - Get information about the card/driver
6723 * @host: scsi host struct
6726 * pointer to buffer with description string
6728 static const char *ipr_ioa_info(struct Scsi_Host *host)
6730 static char buffer[512];
6731 struct ipr_ioa_cfg *ioa_cfg;
6732 unsigned long lock_flags = 0;
6734 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6736 spin_lock_irqsave(host->host_lock, lock_flags);
6737 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6738 spin_unlock_irqrestore(host->host_lock, lock_flags);
6743 static struct scsi_host_template driver_template = {
6744 .module = THIS_MODULE,
6746 .info = ipr_ioa_info,
6748 #ifdef CONFIG_COMPAT
6749 .compat_ioctl = ipr_ioctl,
6751 .queuecommand = ipr_queuecommand,
6752 .dma_need_drain = ata_scsi_dma_need_drain,
6753 .eh_abort_handler = ipr_eh_abort,
6754 .eh_device_reset_handler = ipr_eh_dev_reset,
6755 .eh_host_reset_handler = ipr_eh_host_reset,
6756 .slave_alloc = ipr_slave_alloc,
6757 .slave_configure = ipr_slave_configure,
6758 .slave_destroy = ipr_slave_destroy,
6759 .scan_finished = ipr_scan_finished,
6760 .target_alloc = ipr_target_alloc,
6761 .target_destroy = ipr_target_destroy,
6762 .change_queue_depth = ipr_change_queue_depth,
6763 .bios_param = ipr_biosparam,
6764 .can_queue = IPR_MAX_COMMANDS,
6766 .sg_tablesize = IPR_MAX_SGLIST,
6767 .max_sectors = IPR_IOA_MAX_SECTORS,
6768 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6769 .shost_groups = ipr_ioa_groups,
6770 .sdev_groups = ipr_dev_groups,
6771 .proc_name = IPR_NAME,
6775 * ipr_ata_phy_reset - libata phy_reset handler
6776 * @ap: ata port to reset
6779 static void ipr_ata_phy_reset(struct ata_port *ap)
6781 unsigned long flags;
6782 struct ipr_sata_port *sata_port = ap->private_data;
6783 struct ipr_resource_entry *res = sata_port->res;
6784 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6788 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6789 while (ioa_cfg->in_reset_reload) {
6790 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6791 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6792 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6795 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6798 rc = ipr_device_reset(ioa_cfg, res);
6801 ap->link.device[0].class = ATA_DEV_NONE;
6805 ap->link.device[0].class = res->ata_class;
6806 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6807 ap->link.device[0].class = ATA_DEV_NONE;
6810 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6815 * ipr_ata_post_internal - Cleanup after an internal command
6816 * @qc: ATA queued command
6821 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6823 struct ipr_sata_port *sata_port = qc->ap->private_data;
6824 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6825 struct ipr_cmnd *ipr_cmd;
6826 struct ipr_hrr_queue *hrrq;
6827 unsigned long flags;
6829 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6830 while (ioa_cfg->in_reset_reload) {
6831 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6832 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6833 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6836 for_each_hrrq(hrrq, ioa_cfg) {
6837 spin_lock(&hrrq->_lock);
6838 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6839 if (ipr_cmd->qc == qc) {
6840 ipr_device_reset(ioa_cfg, sata_port->res);
6844 spin_unlock(&hrrq->_lock);
6846 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6850 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6851 * @regs: destination
6852 * @tf: source ATA taskfile
6857 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6858 struct ata_taskfile *tf)
6860 regs->feature = tf->feature;
6861 regs->nsect = tf->nsect;
6862 regs->lbal = tf->lbal;
6863 regs->lbam = tf->lbam;
6864 regs->lbah = tf->lbah;
6865 regs->device = tf->device;
6866 regs->command = tf->command;
6867 regs->hob_feature = tf->hob_feature;
6868 regs->hob_nsect = tf->hob_nsect;
6869 regs->hob_lbal = tf->hob_lbal;
6870 regs->hob_lbam = tf->hob_lbam;
6871 regs->hob_lbah = tf->hob_lbah;
6872 regs->ctl = tf->ctl;
6876 * ipr_sata_done - done function for SATA commands
6877 * @ipr_cmd: ipr command struct
6879 * This function is invoked by the interrupt handler for
6880 * ops generated by the SCSI mid-layer to SATA devices
6885 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6887 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6888 struct ata_queued_cmd *qc = ipr_cmd->qc;
6889 struct ipr_sata_port *sata_port = qc->ap->private_data;
6890 struct ipr_resource_entry *res = sata_port->res;
6891 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6893 spin_lock(&ipr_cmd->hrrq->_lock);
6894 if (ipr_cmd->ioa_cfg->sis64)
6895 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6896 sizeof(struct ipr_ioasa_gata));
6898 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6899 sizeof(struct ipr_ioasa_gata));
6900 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6902 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6903 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6905 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6906 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6908 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6909 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6910 spin_unlock(&ipr_cmd->hrrq->_lock);
6911 ata_qc_complete(qc);
6915 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6916 * @ipr_cmd: ipr command struct
6917 * @qc: ATA queued command
6920 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6921 struct ata_queued_cmd *qc)
6923 u32 ioadl_flags = 0;
6924 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6925 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6926 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6927 int len = qc->nbytes;
6928 struct scatterlist *sg;
6930 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6935 if (qc->dma_dir == DMA_TO_DEVICE) {
6936 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6937 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6938 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6939 ioadl_flags = IPR_IOADL_FLAGS_READ;
6941 ioarcb->data_transfer_length = cpu_to_be32(len);
6943 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6944 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6945 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6947 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6948 ioadl64->flags = cpu_to_be32(ioadl_flags);
6949 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6950 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6952 last_ioadl64 = ioadl64;
6956 if (likely(last_ioadl64))
6957 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6961 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6962 * @ipr_cmd: ipr command struct
6963 * @qc: ATA queued command
6966 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6967 struct ata_queued_cmd *qc)
6969 u32 ioadl_flags = 0;
6970 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6971 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6972 struct ipr_ioadl_desc *last_ioadl = NULL;
6973 int len = qc->nbytes;
6974 struct scatterlist *sg;
6980 if (qc->dma_dir == DMA_TO_DEVICE) {
6981 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6982 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6983 ioarcb->data_transfer_length = cpu_to_be32(len);
6985 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6986 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6987 ioadl_flags = IPR_IOADL_FLAGS_READ;
6988 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6989 ioarcb->read_ioadl_len =
6990 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6993 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6994 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6995 ioadl->address = cpu_to_be32(sg_dma_address(sg));
7001 if (likely(last_ioadl))
7002 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
7006 * ipr_qc_defer - Get a free ipr_cmd
7007 * @qc: queued command
7012 static int ipr_qc_defer(struct ata_queued_cmd *qc)
7014 struct ata_port *ap = qc->ap;
7015 struct ipr_sata_port *sata_port = ap->private_data;
7016 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7017 struct ipr_cmnd *ipr_cmd;
7018 struct ipr_hrr_queue *hrrq;
7021 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
7022 hrrq = &ioa_cfg->hrrq[hrrq_id];
7024 qc->lldd_task = NULL;
7025 spin_lock(&hrrq->_lock);
7026 if (unlikely(hrrq->ioa_is_dead)) {
7027 spin_unlock(&hrrq->_lock);
7031 if (unlikely(!hrrq->allow_cmds)) {
7032 spin_unlock(&hrrq->_lock);
7033 return ATA_DEFER_LINK;
7036 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
7037 if (ipr_cmd == NULL) {
7038 spin_unlock(&hrrq->_lock);
7039 return ATA_DEFER_LINK;
7042 qc->lldd_task = ipr_cmd;
7043 spin_unlock(&hrrq->_lock);
7048 * ipr_qc_issue - Issue a SATA qc to a device
7049 * @qc: queued command
7054 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
7056 struct ata_port *ap = qc->ap;
7057 struct ipr_sata_port *sata_port = ap->private_data;
7058 struct ipr_resource_entry *res = sata_port->res;
7059 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7060 struct ipr_cmnd *ipr_cmd;
7061 struct ipr_ioarcb *ioarcb;
7062 struct ipr_ioarcb_ata_regs *regs;
7064 if (qc->lldd_task == NULL)
7067 ipr_cmd = qc->lldd_task;
7068 if (ipr_cmd == NULL)
7069 return AC_ERR_SYSTEM;
7071 qc->lldd_task = NULL;
7072 spin_lock(&ipr_cmd->hrrq->_lock);
7073 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
7074 ipr_cmd->hrrq->ioa_is_dead)) {
7075 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7076 spin_unlock(&ipr_cmd->hrrq->_lock);
7077 return AC_ERR_SYSTEM;
7080 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
7081 ioarcb = &ipr_cmd->ioarcb;
7083 if (ioa_cfg->sis64) {
7084 regs = &ipr_cmd->i.ata_ioadl.regs;
7085 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
7087 regs = &ioarcb->u.add_data.u.regs;
7089 memset(regs, 0, sizeof(*regs));
7090 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
7092 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
7094 ipr_cmd->done = ipr_sata_done;
7095 ipr_cmd->ioarcb.res_handle = res->res_handle;
7096 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
7097 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
7098 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
7099 ipr_cmd->dma_use_sg = qc->n_elem;
7102 ipr_build_ata_ioadl64(ipr_cmd, qc);
7104 ipr_build_ata_ioadl(ipr_cmd, qc);
7106 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
7107 ipr_copy_sata_tf(regs, &qc->tf);
7108 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
7109 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
7111 switch (qc->tf.protocol) {
7112 case ATA_PROT_NODATA:
7117 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7120 case ATAPI_PROT_PIO:
7121 case ATAPI_PROT_NODATA:
7122 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7125 case ATAPI_PROT_DMA:
7126 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7127 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7132 spin_unlock(&ipr_cmd->hrrq->_lock);
7133 return AC_ERR_INVALID;
7136 ipr_send_command(ipr_cmd);
7137 spin_unlock(&ipr_cmd->hrrq->_lock);
7143 * ipr_qc_fill_rtf - Read result TF
7144 * @qc: ATA queued command
7146 static void ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
7148 struct ipr_sata_port *sata_port = qc->ap->private_data;
7149 struct ipr_ioasa_gata *g = &sata_port->ioasa;
7150 struct ata_taskfile *tf = &qc->result_tf;
7152 tf->feature = g->error;
7153 tf->nsect = g->nsect;
7157 tf->device = g->device;
7158 tf->command = g->status;
7159 tf->hob_nsect = g->hob_nsect;
7160 tf->hob_lbal = g->hob_lbal;
7161 tf->hob_lbam = g->hob_lbam;
7162 tf->hob_lbah = g->hob_lbah;
7165 static struct ata_port_operations ipr_sata_ops = {
7166 .phy_reset = ipr_ata_phy_reset,
7167 .hardreset = ipr_sata_reset,
7168 .post_internal_cmd = ipr_ata_post_internal,
7169 .qc_prep = ata_noop_qc_prep,
7170 .qc_defer = ipr_qc_defer,
7171 .qc_issue = ipr_qc_issue,
7172 .qc_fill_rtf = ipr_qc_fill_rtf,
7173 .port_start = ata_sas_port_start,
7174 .port_stop = ata_sas_port_stop
7177 static struct ata_port_info sata_port_info = {
7178 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
7180 .pio_mask = ATA_PIO4_ONLY,
7181 .mwdma_mask = ATA_MWDMA2,
7182 .udma_mask = ATA_UDMA6,
7183 .port_ops = &ipr_sata_ops
7186 #ifdef CONFIG_PPC_PSERIES
7187 static const u16 ipr_blocked_processors[] = {
7199 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
7200 * @ioa_cfg: ioa cfg struct
7202 * Adapters that use Gemstone revision < 3.1 do not work reliably on
7203 * certain pSeries hardware. This function determines if the given
7204 * adapter is in one of these confgurations or not.
7207 * 1 if adapter is not supported / 0 if adapter is supported
7209 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
7213 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
7214 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
7215 if (pvr_version_is(ipr_blocked_processors[i]))
7222 #define ipr_invalid_adapter(ioa_cfg) 0
7226 * ipr_ioa_bringdown_done - IOA bring down completion.
7227 * @ipr_cmd: ipr command struct
7229 * This function processes the completion of an adapter bring down.
7230 * It wakes any reset sleepers.
7235 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
7237 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7241 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
7243 ioa_cfg->scsi_unblock = 1;
7244 schedule_work(&ioa_cfg->work_q);
7247 ioa_cfg->in_reset_reload = 0;
7248 ioa_cfg->reset_retries = 0;
7249 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7250 spin_lock(&ioa_cfg->hrrq[i]._lock);
7251 ioa_cfg->hrrq[i].ioa_is_dead = 1;
7252 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7256 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7257 wake_up_all(&ioa_cfg->reset_wait_q);
7260 return IPR_RC_JOB_RETURN;
7264 * ipr_ioa_reset_done - IOA reset completion.
7265 * @ipr_cmd: ipr command struct
7267 * This function processes the completion of an adapter reset.
7268 * It schedules any necessary mid-layer add/removes and
7269 * wakes any reset sleepers.
7274 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7277 struct ipr_resource_entry *res;
7281 ioa_cfg->in_reset_reload = 0;
7282 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7283 spin_lock(&ioa_cfg->hrrq[j]._lock);
7284 ioa_cfg->hrrq[j].allow_cmds = 1;
7285 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7288 ioa_cfg->reset_cmd = NULL;
7289 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7291 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7292 if (res->add_to_ml || res->del_from_ml) {
7297 schedule_work(&ioa_cfg->work_q);
7299 for (j = 0; j < IPR_NUM_HCAMS; j++) {
7300 list_del_init(&ioa_cfg->hostrcb[j]->queue);
7301 if (j < IPR_NUM_LOG_HCAMS)
7302 ipr_send_hcam(ioa_cfg,
7303 IPR_HCAM_CDB_OP_CODE_LOG_DATA,
7304 ioa_cfg->hostrcb[j]);
7306 ipr_send_hcam(ioa_cfg,
7307 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
7308 ioa_cfg->hostrcb[j]);
7311 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7312 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7314 ioa_cfg->reset_retries = 0;
7315 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7316 wake_up_all(&ioa_cfg->reset_wait_q);
7318 ioa_cfg->scsi_unblock = 1;
7319 schedule_work(&ioa_cfg->work_q);
7321 return IPR_RC_JOB_RETURN;
7325 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7326 * @supported_dev: supported device struct
7327 * @vpids: vendor product id struct
7332 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7333 struct ipr_std_inq_vpids *vpids)
7335 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7336 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7337 supported_dev->num_records = 1;
7338 supported_dev->data_length =
7339 cpu_to_be16(sizeof(struct ipr_supported_device));
7340 supported_dev->reserved = 0;
7344 * ipr_set_supported_devs - Send Set Supported Devices for a device
7345 * @ipr_cmd: ipr command struct
7347 * This function sends a Set Supported Devices to the adapter
7350 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7352 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7354 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7355 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7356 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7357 struct ipr_resource_entry *res = ipr_cmd->u.res;
7359 ipr_cmd->job_step = ipr_ioa_reset_done;
7361 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7362 if (!ipr_is_scsi_disk(res))
7365 ipr_cmd->u.res = res;
7366 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7368 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7369 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7370 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7372 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7373 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7374 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7375 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7377 ipr_init_ioadl(ipr_cmd,
7378 ioa_cfg->vpd_cbs_dma +
7379 offsetof(struct ipr_misc_cbs, supp_dev),
7380 sizeof(struct ipr_supported_device),
7381 IPR_IOADL_FLAGS_WRITE_LAST);
7383 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7384 IPR_SET_SUP_DEVICE_TIMEOUT);
7386 if (!ioa_cfg->sis64)
7387 ipr_cmd->job_step = ipr_set_supported_devs;
7389 return IPR_RC_JOB_RETURN;
7393 return IPR_RC_JOB_CONTINUE;
7397 * ipr_get_mode_page - Locate specified mode page
7398 * @mode_pages: mode page buffer
7399 * @page_code: page code to find
7400 * @len: minimum required length for mode page
7403 * pointer to mode page / NULL on failure
7405 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7406 u32 page_code, u32 len)
7408 struct ipr_mode_page_hdr *mode_hdr;
7412 if (!mode_pages || (mode_pages->hdr.length == 0))
7415 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7416 mode_hdr = (struct ipr_mode_page_hdr *)
7417 (mode_pages->data + mode_pages->hdr.block_desc_len);
7420 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7421 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7425 page_length = (sizeof(struct ipr_mode_page_hdr) +
7426 mode_hdr->page_length);
7427 length -= page_length;
7428 mode_hdr = (struct ipr_mode_page_hdr *)
7429 ((unsigned long)mode_hdr + page_length);
7436 * ipr_check_term_power - Check for term power errors
7437 * @ioa_cfg: ioa config struct
7438 * @mode_pages: IOAFP mode pages buffer
7440 * Check the IOAFP's mode page 28 for term power errors
7445 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7446 struct ipr_mode_pages *mode_pages)
7450 struct ipr_dev_bus_entry *bus;
7451 struct ipr_mode_page28 *mode_page;
7453 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7454 sizeof(struct ipr_mode_page28));
7456 entry_length = mode_page->entry_length;
7458 bus = mode_page->bus;
7460 for (i = 0; i < mode_page->num_entries; i++) {
7461 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7462 dev_err(&ioa_cfg->pdev->dev,
7463 "Term power is absent on scsi bus %d\n",
7467 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7472 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7473 * @ioa_cfg: ioa config struct
7475 * Looks through the config table checking for SES devices. If
7476 * the SES device is in the SES table indicating a maximum SCSI
7477 * bus speed, the speed is limited for the bus.
7482 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7487 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7488 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7489 ioa_cfg->bus_attr[i].bus_width);
7491 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7492 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7497 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7498 * @ioa_cfg: ioa config struct
7499 * @mode_pages: mode page 28 buffer
7501 * Updates mode page 28 based on driver configuration
7506 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7507 struct ipr_mode_pages *mode_pages)
7509 int i, entry_length;
7510 struct ipr_dev_bus_entry *bus;
7511 struct ipr_bus_attributes *bus_attr;
7512 struct ipr_mode_page28 *mode_page;
7514 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7515 sizeof(struct ipr_mode_page28));
7517 entry_length = mode_page->entry_length;
7519 /* Loop for each device bus entry */
7520 for (i = 0, bus = mode_page->bus;
7521 i < mode_page->num_entries;
7522 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7523 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7524 dev_err(&ioa_cfg->pdev->dev,
7525 "Invalid resource address reported: 0x%08X\n",
7526 IPR_GET_PHYS_LOC(bus->res_addr));
7530 bus_attr = &ioa_cfg->bus_attr[i];
7531 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7532 bus->bus_width = bus_attr->bus_width;
7533 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7534 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7535 if (bus_attr->qas_enabled)
7536 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7538 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7543 * ipr_build_mode_select - Build a mode select command
7544 * @ipr_cmd: ipr command struct
7545 * @res_handle: resource handle to send command to
7546 * @parm: Byte 2 of Mode Sense command
7547 * @dma_addr: DMA buffer address
7548 * @xfer_len: data transfer length
7553 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7554 __be32 res_handle, u8 parm,
7555 dma_addr_t dma_addr, u8 xfer_len)
7557 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7559 ioarcb->res_handle = res_handle;
7560 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7561 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7562 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7563 ioarcb->cmd_pkt.cdb[1] = parm;
7564 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7566 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7570 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7571 * @ipr_cmd: ipr command struct
7573 * This function sets up the SCSI bus attributes and sends
7574 * a Mode Select for Page 28 to activate them.
7579 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7581 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7582 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7586 ipr_scsi_bus_speed_limit(ioa_cfg);
7587 ipr_check_term_power(ioa_cfg, mode_pages);
7588 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7589 length = mode_pages->hdr.length + 1;
7590 mode_pages->hdr.length = 0;
7592 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7593 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7596 ipr_cmd->job_step = ipr_set_supported_devs;
7597 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7598 struct ipr_resource_entry, queue);
7599 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7602 return IPR_RC_JOB_RETURN;
7606 * ipr_build_mode_sense - Builds a mode sense command
7607 * @ipr_cmd: ipr command struct
7608 * @res_handle: resource entry struct
7609 * @parm: Byte 2 of mode sense command
7610 * @dma_addr: DMA address of mode sense buffer
7611 * @xfer_len: Size of DMA buffer
7616 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7618 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7622 ioarcb->res_handle = res_handle;
7623 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7624 ioarcb->cmd_pkt.cdb[2] = parm;
7625 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7626 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7628 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7632 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7633 * @ipr_cmd: ipr command struct
7635 * This function handles the failure of an IOA bringup command.
7640 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7642 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7643 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7645 dev_err(&ioa_cfg->pdev->dev,
7646 "0x%02X failed with IOASC: 0x%08X\n",
7647 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7649 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7650 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7651 return IPR_RC_JOB_RETURN;
7655 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7656 * @ipr_cmd: ipr command struct
7658 * This function handles the failure of a Mode Sense to the IOAFP.
7659 * Some adapters do not handle all mode pages.
7662 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7664 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7666 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7667 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7669 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7670 ipr_cmd->job_step = ipr_set_supported_devs;
7671 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7672 struct ipr_resource_entry, queue);
7673 return IPR_RC_JOB_CONTINUE;
7676 return ipr_reset_cmd_failed(ipr_cmd);
7680 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7681 * @ipr_cmd: ipr command struct
7683 * This function send a Page 28 mode sense to the IOA to
7684 * retrieve SCSI bus attributes.
7689 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7694 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7695 0x28, ioa_cfg->vpd_cbs_dma +
7696 offsetof(struct ipr_misc_cbs, mode_pages),
7697 sizeof(struct ipr_mode_pages));
7699 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7700 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7702 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7705 return IPR_RC_JOB_RETURN;
7709 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7710 * @ipr_cmd: ipr command struct
7712 * This function enables dual IOA RAID support if possible.
7717 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7720 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7721 struct ipr_mode_page24 *mode_page;
7725 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7726 sizeof(struct ipr_mode_page24));
7729 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7731 length = mode_pages->hdr.length + 1;
7732 mode_pages->hdr.length = 0;
7734 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7735 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7738 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7739 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7742 return IPR_RC_JOB_RETURN;
7746 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7747 * @ipr_cmd: ipr command struct
7749 * This function handles the failure of a Mode Sense to the IOAFP.
7750 * Some adapters do not handle all mode pages.
7753 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7755 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7757 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7759 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7760 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7761 return IPR_RC_JOB_CONTINUE;
7764 return ipr_reset_cmd_failed(ipr_cmd);
7768 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7769 * @ipr_cmd: ipr command struct
7771 * This function send a mode sense to the IOA to retrieve
7772 * the IOA Advanced Function Control mode page.
7777 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7779 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7782 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7783 0x24, ioa_cfg->vpd_cbs_dma +
7784 offsetof(struct ipr_misc_cbs, mode_pages),
7785 sizeof(struct ipr_mode_pages));
7787 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7788 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7790 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7793 return IPR_RC_JOB_RETURN;
7797 * ipr_init_res_table - Initialize the resource table
7798 * @ipr_cmd: ipr command struct
7800 * This function looks through the existing resource table, comparing
7801 * it with the config table. This function will take care of old/new
7802 * devices and schedule adding/removing them from the mid-layer
7806 * IPR_RC_JOB_CONTINUE
7808 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7810 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7811 struct ipr_resource_entry *res, *temp;
7812 struct ipr_config_table_entry_wrapper cfgtew;
7813 int entries, found, flag, i;
7818 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7820 flag = ioa_cfg->u.cfg_table->hdr.flags;
7822 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7823 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7825 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7826 list_move_tail(&res->queue, &old_res);
7829 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7831 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7833 for (i = 0; i < entries; i++) {
7835 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7837 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7840 list_for_each_entry_safe(res, temp, &old_res, queue) {
7841 if (ipr_is_same_device(res, &cfgtew)) {
7842 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7849 if (list_empty(&ioa_cfg->free_res_q)) {
7850 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7855 res = list_entry(ioa_cfg->free_res_q.next,
7856 struct ipr_resource_entry, queue);
7857 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7858 ipr_init_res_entry(res, &cfgtew);
7860 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7861 res->sdev->allow_restart = 1;
7864 ipr_update_res_entry(res, &cfgtew);
7867 list_for_each_entry_safe(res, temp, &old_res, queue) {
7869 res->del_from_ml = 1;
7870 res->res_handle = IPR_INVALID_RES_HANDLE;
7871 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7875 list_for_each_entry_safe(res, temp, &old_res, queue) {
7876 ipr_clear_res_target(res);
7877 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7880 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7881 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7883 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7886 return IPR_RC_JOB_CONTINUE;
7890 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7891 * @ipr_cmd: ipr command struct
7893 * This function sends a Query IOA Configuration command
7894 * to the adapter to retrieve the IOA configuration table.
7899 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7901 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7902 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7903 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7904 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7907 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7908 ioa_cfg->dual_raid = 1;
7909 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7910 ucode_vpd->major_release, ucode_vpd->card_type,
7911 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7912 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7913 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7915 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7916 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7917 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7918 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7920 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7921 IPR_IOADL_FLAGS_READ_LAST);
7923 ipr_cmd->job_step = ipr_init_res_table;
7925 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7928 return IPR_RC_JOB_RETURN;
7931 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7933 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7935 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7936 return IPR_RC_JOB_CONTINUE;
7938 return ipr_reset_cmd_failed(ipr_cmd);
7941 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7942 __be32 res_handle, u8 sa_code)
7944 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7946 ioarcb->res_handle = res_handle;
7947 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7948 ioarcb->cmd_pkt.cdb[1] = sa_code;
7949 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7953 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7955 * @ipr_cmd: ipr command struct
7960 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7962 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7964 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7968 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7970 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7971 ipr_build_ioa_service_action(ipr_cmd,
7972 cpu_to_be32(IPR_IOA_RES_HANDLE),
7973 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7975 ioarcb->cmd_pkt.cdb[2] = 0x40;
7977 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7978 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7979 IPR_SET_SUP_DEVICE_TIMEOUT);
7982 return IPR_RC_JOB_RETURN;
7986 return IPR_RC_JOB_CONTINUE;
7990 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7991 * @ipr_cmd: ipr command struct
7992 * @flags: flags to send
7993 * @page: page to inquire
7994 * @dma_addr: DMA address
7995 * @xfer_len: transfer data length
7997 * This utility function sends an inquiry to the adapter.
8002 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
8003 dma_addr_t dma_addr, u8 xfer_len)
8005 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
8008 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8009 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8011 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
8012 ioarcb->cmd_pkt.cdb[1] = flags;
8013 ioarcb->cmd_pkt.cdb[2] = page;
8014 ioarcb->cmd_pkt.cdb[4] = xfer_len;
8016 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
8018 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
8023 * ipr_inquiry_page_supported - Is the given inquiry page supported
8024 * @page0: inquiry page 0 buffer
8027 * This function determines if the specified inquiry page is supported.
8030 * 1 if page is supported / 0 if not
8032 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
8036 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
8037 if (page0->page[i] == page)
8044 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
8045 * @ipr_cmd: ipr command struct
8047 * This function sends a Page 0xC4 inquiry to the adapter
8048 * to retrieve software VPD information.
8051 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8053 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
8055 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8056 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8057 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
8060 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
8061 memset(pageC4, 0, sizeof(*pageC4));
8063 if (ipr_inquiry_page_supported(page0, 0xC4)) {
8064 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
8065 (ioa_cfg->vpd_cbs_dma
8066 + offsetof(struct ipr_misc_cbs,
8068 sizeof(struct ipr_inquiry_pageC4));
8069 return IPR_RC_JOB_RETURN;
8073 return IPR_RC_JOB_CONTINUE;
8077 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
8078 * @ipr_cmd: ipr command struct
8080 * This function sends a Page 0xD0 inquiry to the adapter
8081 * to retrieve adapter capabilities.
8084 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8086 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
8088 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8089 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8090 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
8093 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
8094 memset(cap, 0, sizeof(*cap));
8096 if (ipr_inquiry_page_supported(page0, 0xD0)) {
8097 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
8098 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
8099 sizeof(struct ipr_inquiry_cap));
8100 return IPR_RC_JOB_RETURN;
8104 return IPR_RC_JOB_CONTINUE;
8108 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
8109 * @ipr_cmd: ipr command struct
8111 * This function sends a Page 3 inquiry to the adapter
8112 * to retrieve software VPD information.
8115 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8117 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
8119 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8123 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
8125 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
8126 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
8127 sizeof(struct ipr_inquiry_page3));
8130 return IPR_RC_JOB_RETURN;
8134 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
8135 * @ipr_cmd: ipr command struct
8137 * This function sends a Page 0 inquiry to the adapter
8138 * to retrieve supported inquiry pages.
8141 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8143 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
8145 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8150 /* Grab the type out of the VPD and store it away */
8151 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
8153 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
8155 if (ipr_invalid_adapter(ioa_cfg)) {
8156 dev_err(&ioa_cfg->pdev->dev,
8157 "Adapter not supported in this hardware configuration.\n");
8159 if (!ipr_testmode) {
8160 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
8161 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8162 list_add_tail(&ipr_cmd->queue,
8163 &ioa_cfg->hrrq->hrrq_free_q);
8164 return IPR_RC_JOB_RETURN;
8168 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
8170 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
8171 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
8172 sizeof(struct ipr_inquiry_page0));
8175 return IPR_RC_JOB_RETURN;
8179 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
8180 * @ipr_cmd: ipr command struct
8182 * This function sends a standard inquiry to the adapter.
8187 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
8189 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8192 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
8194 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
8195 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
8196 sizeof(struct ipr_ioa_vpd));
8199 return IPR_RC_JOB_RETURN;
8203 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
8204 * @ipr_cmd: ipr command struct
8206 * This function send an Identify Host Request Response Queue
8207 * command to establish the HRRQ with the adapter.
8212 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
8214 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8215 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
8216 struct ipr_hrr_queue *hrrq;
8219 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
8220 if (ioa_cfg->identify_hrrq_index == 0)
8221 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
8223 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
8224 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
8226 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
8227 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8229 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8231 ioarcb->cmd_pkt.cdb[1] = 0x1;
8233 if (ioa_cfg->nvectors == 1)
8234 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
8236 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
8238 ioarcb->cmd_pkt.cdb[2] =
8239 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
8240 ioarcb->cmd_pkt.cdb[3] =
8241 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
8242 ioarcb->cmd_pkt.cdb[4] =
8243 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
8244 ioarcb->cmd_pkt.cdb[5] =
8245 ((u64) hrrq->host_rrq_dma) & 0xff;
8246 ioarcb->cmd_pkt.cdb[7] =
8247 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
8248 ioarcb->cmd_pkt.cdb[8] =
8249 (sizeof(u32) * hrrq->size) & 0xff;
8251 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8252 ioarcb->cmd_pkt.cdb[9] =
8253 ioa_cfg->identify_hrrq_index;
8255 if (ioa_cfg->sis64) {
8256 ioarcb->cmd_pkt.cdb[10] =
8257 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8258 ioarcb->cmd_pkt.cdb[11] =
8259 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8260 ioarcb->cmd_pkt.cdb[12] =
8261 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8262 ioarcb->cmd_pkt.cdb[13] =
8263 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8266 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
8267 ioarcb->cmd_pkt.cdb[14] =
8268 ioa_cfg->identify_hrrq_index;
8270 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8271 IPR_INTERNAL_TIMEOUT);
8273 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8274 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8277 return IPR_RC_JOB_RETURN;
8281 return IPR_RC_JOB_CONTINUE;
8285 * ipr_reset_timer_done - Adapter reset timer function
8286 * @t: Timer context used to fetch ipr command struct
8288 * Description: This function is used in adapter reset processing
8289 * for timing events. If the reset_cmd pointer in the IOA
8290 * config struct is not this adapter's we are doing nested
8291 * resets and fail_all_ops will take care of freeing the
8297 static void ipr_reset_timer_done(struct timer_list *t)
8299 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
8300 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8301 unsigned long lock_flags = 0;
8303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8305 if (ioa_cfg->reset_cmd == ipr_cmd) {
8306 list_del(&ipr_cmd->queue);
8307 ipr_cmd->done(ipr_cmd);
8310 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8314 * ipr_reset_start_timer - Start a timer for adapter reset job
8315 * @ipr_cmd: ipr command struct
8316 * @timeout: timeout value
8318 * Description: This function is used in adapter reset processing
8319 * for timing events. If the reset_cmd pointer in the IOA
8320 * config struct is not this adapter's we are doing nested
8321 * resets and fail_all_ops will take care of freeing the
8327 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8328 unsigned long timeout)
8332 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8333 ipr_cmd->done = ipr_reset_ioa_job;
8335 ipr_cmd->timer.expires = jiffies + timeout;
8336 ipr_cmd->timer.function = ipr_reset_timer_done;
8337 add_timer(&ipr_cmd->timer);
8341 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8342 * @ioa_cfg: ioa cfg struct
8347 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8349 struct ipr_hrr_queue *hrrq;
8351 for_each_hrrq(hrrq, ioa_cfg) {
8352 spin_lock(&hrrq->_lock);
8353 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8355 /* Initialize Host RRQ pointers */
8356 hrrq->hrrq_start = hrrq->host_rrq;
8357 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8358 hrrq->hrrq_curr = hrrq->hrrq_start;
8359 hrrq->toggle_bit = 1;
8360 spin_unlock(&hrrq->_lock);
8364 ioa_cfg->identify_hrrq_index = 0;
8365 if (ioa_cfg->hrrq_num == 1)
8366 atomic_set(&ioa_cfg->hrrq_index, 0);
8368 atomic_set(&ioa_cfg->hrrq_index, 1);
8370 /* Zero out config table */
8371 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8375 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8376 * @ipr_cmd: ipr command struct
8379 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8381 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8383 unsigned long stage, stage_time;
8385 volatile u32 int_reg;
8386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8389 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8390 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8391 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8393 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8395 /* sanity check the stage_time value */
8396 if (stage_time == 0)
8397 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8398 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8399 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8400 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8401 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8403 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8404 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8405 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8406 stage_time = ioa_cfg->transop_timeout;
8407 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8408 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8409 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8410 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8411 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8412 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8413 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8414 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8415 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8416 return IPR_RC_JOB_CONTINUE;
8420 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8421 ipr_cmd->timer.function = ipr_oper_timeout;
8422 ipr_cmd->done = ipr_reset_ioa_job;
8423 add_timer(&ipr_cmd->timer);
8425 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8427 return IPR_RC_JOB_RETURN;
8431 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8432 * @ipr_cmd: ipr command struct
8434 * This function reinitializes some control blocks and
8435 * enables destructive diagnostics on the adapter.
8440 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8442 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8443 volatile u32 int_reg;
8444 volatile u64 maskval;
8448 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8449 ipr_init_ioa_mem(ioa_cfg);
8451 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8452 spin_lock(&ioa_cfg->hrrq[i]._lock);
8453 ioa_cfg->hrrq[i].allow_interrupts = 1;
8454 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8456 if (ioa_cfg->sis64) {
8457 /* Set the adapter to the correct endian mode. */
8458 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8459 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8462 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8464 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8465 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8466 ioa_cfg->regs.clr_interrupt_mask_reg32);
8467 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8468 return IPR_RC_JOB_CONTINUE;
8471 /* Enable destructive diagnostics on IOA */
8472 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8474 if (ioa_cfg->sis64) {
8475 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8476 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8477 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8479 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8481 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8483 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8485 if (ioa_cfg->sis64) {
8486 ipr_cmd->job_step = ipr_reset_next_stage;
8487 return IPR_RC_JOB_CONTINUE;
8490 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8491 ipr_cmd->timer.function = ipr_oper_timeout;
8492 ipr_cmd->done = ipr_reset_ioa_job;
8493 add_timer(&ipr_cmd->timer);
8494 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8497 return IPR_RC_JOB_RETURN;
8501 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8502 * @ipr_cmd: ipr command struct
8504 * This function is invoked when an adapter dump has run out
8505 * of processing time.
8508 * IPR_RC_JOB_CONTINUE
8510 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8512 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8514 if (ioa_cfg->sdt_state == GET_DUMP)
8515 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8516 else if (ioa_cfg->sdt_state == READ_DUMP)
8517 ioa_cfg->sdt_state = ABORT_DUMP;
8519 ioa_cfg->dump_timeout = 1;
8520 ipr_cmd->job_step = ipr_reset_alert;
8522 return IPR_RC_JOB_CONTINUE;
8526 * ipr_unit_check_no_data - Log a unit check/no data error log
8527 * @ioa_cfg: ioa config struct
8529 * Logs an error indicating the adapter unit checked, but for some
8530 * reason, we were unable to fetch the unit check buffer.
8535 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8537 ioa_cfg->errors_logged++;
8538 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8542 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8543 * @ioa_cfg: ioa config struct
8545 * Fetches the unit check buffer from the adapter by clocking the data
8546 * through the mailbox register.
8551 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8553 unsigned long mailbox;
8554 struct ipr_hostrcb *hostrcb;
8555 struct ipr_uc_sdt sdt;
8559 mailbox = readl(ioa_cfg->ioa_mailbox);
8561 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8562 ipr_unit_check_no_data(ioa_cfg);
8566 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8567 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8568 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8570 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8571 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8572 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8573 ipr_unit_check_no_data(ioa_cfg);
8577 /* Find length of the first sdt entry (UC buffer) */
8578 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8579 length = be32_to_cpu(sdt.entry[0].end_token);
8581 length = (be32_to_cpu(sdt.entry[0].end_token) -
8582 be32_to_cpu(sdt.entry[0].start_token)) &
8583 IPR_FMT2_MBX_ADDR_MASK;
8585 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8586 struct ipr_hostrcb, queue);
8587 list_del_init(&hostrcb->queue);
8588 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8590 rc = ipr_get_ldump_data_section(ioa_cfg,
8591 be32_to_cpu(sdt.entry[0].start_token),
8592 (__be32 *)&hostrcb->hcam,
8593 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8596 ipr_handle_log_data(ioa_cfg, hostrcb);
8597 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8598 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8599 ioa_cfg->sdt_state == GET_DUMP)
8600 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8602 ipr_unit_check_no_data(ioa_cfg);
8604 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8608 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8609 * @ipr_cmd: ipr command struct
8611 * Description: This function will call to get the unit check buffer.
8616 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8618 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8621 ioa_cfg->ioa_unit_checked = 0;
8622 ipr_get_unit_check_buffer(ioa_cfg);
8623 ipr_cmd->job_step = ipr_reset_alert;
8624 ipr_reset_start_timer(ipr_cmd, 0);
8627 return IPR_RC_JOB_RETURN;
8630 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8636 if (ioa_cfg->sdt_state != GET_DUMP)
8637 return IPR_RC_JOB_RETURN;
8639 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8640 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8641 IPR_PCII_MAILBOX_STABLE)) {
8643 if (!ipr_cmd->u.time_left)
8644 dev_err(&ioa_cfg->pdev->dev,
8645 "Timed out waiting for Mailbox register.\n");
8647 ioa_cfg->sdt_state = READ_DUMP;
8648 ioa_cfg->dump_timeout = 0;
8650 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8652 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8653 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8654 schedule_work(&ioa_cfg->work_q);
8657 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8658 ipr_reset_start_timer(ipr_cmd,
8659 IPR_CHECK_FOR_RESET_TIMEOUT);
8663 return IPR_RC_JOB_RETURN;
8667 * ipr_reset_restore_cfg_space - Restore PCI config space.
8668 * @ipr_cmd: ipr command struct
8670 * Description: This function restores the saved PCI config space of
8671 * the adapter, fails all outstanding ops back to the callers, and
8672 * fetches the dump/unit check if applicable to this reset.
8675 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8677 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8682 ioa_cfg->pdev->state_saved = true;
8683 pci_restore_state(ioa_cfg->pdev);
8685 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8686 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8687 return IPR_RC_JOB_CONTINUE;
8690 ipr_fail_all_ops(ioa_cfg);
8692 if (ioa_cfg->sis64) {
8693 /* Set the adapter to the correct endian mode. */
8694 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8695 readl(ioa_cfg->regs.endian_swap_reg);
8698 if (ioa_cfg->ioa_unit_checked) {
8699 if (ioa_cfg->sis64) {
8700 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8701 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8702 return IPR_RC_JOB_RETURN;
8704 ioa_cfg->ioa_unit_checked = 0;
8705 ipr_get_unit_check_buffer(ioa_cfg);
8706 ipr_cmd->job_step = ipr_reset_alert;
8707 ipr_reset_start_timer(ipr_cmd, 0);
8708 return IPR_RC_JOB_RETURN;
8712 if (ioa_cfg->in_ioa_bringdown) {
8713 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8714 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8715 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8716 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8718 ipr_cmd->job_step = ipr_reset_enable_ioa;
8722 return IPR_RC_JOB_CONTINUE;
8726 * ipr_reset_bist_done - BIST has completed on the adapter.
8727 * @ipr_cmd: ipr command struct
8729 * Description: Unblock config space and resume the reset process.
8732 * IPR_RC_JOB_CONTINUE
8734 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8736 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8739 if (ioa_cfg->cfg_locked)
8740 pci_cfg_access_unlock(ioa_cfg->pdev);
8741 ioa_cfg->cfg_locked = 0;
8742 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8744 return IPR_RC_JOB_CONTINUE;
8748 * ipr_reset_start_bist - Run BIST on the adapter.
8749 * @ipr_cmd: ipr command struct
8751 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8754 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8756 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8759 int rc = PCIBIOS_SUCCESSFUL;
8762 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8763 writel(IPR_UPROCI_SIS64_START_BIST,
8764 ioa_cfg->regs.set_uproc_interrupt_reg32);
8766 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8768 if (rc == PCIBIOS_SUCCESSFUL) {
8769 ipr_cmd->job_step = ipr_reset_bist_done;
8770 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8771 rc = IPR_RC_JOB_RETURN;
8773 if (ioa_cfg->cfg_locked)
8774 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8775 ioa_cfg->cfg_locked = 0;
8776 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8777 rc = IPR_RC_JOB_CONTINUE;
8785 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8786 * @ipr_cmd: ipr command struct
8788 * Description: This clears PCI reset to the adapter and delays two seconds.
8793 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8796 ipr_cmd->job_step = ipr_reset_bist_done;
8797 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8799 return IPR_RC_JOB_RETURN;
8803 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8804 * @work: work struct
8806 * Description: This pulses warm reset to a slot.
8809 static void ipr_reset_reset_work(struct work_struct *work)
8811 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8812 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8813 struct pci_dev *pdev = ioa_cfg->pdev;
8814 unsigned long lock_flags = 0;
8817 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8818 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8819 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8822 if (ioa_cfg->reset_cmd == ipr_cmd)
8823 ipr_reset_ioa_job(ipr_cmd);
8824 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8829 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8830 * @ipr_cmd: ipr command struct
8832 * Description: This asserts PCI reset to the adapter.
8837 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8842 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8843 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8844 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8846 return IPR_RC_JOB_RETURN;
8850 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8851 * @ipr_cmd: ipr command struct
8853 * Description: This attempts to block config access to the IOA.
8856 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8858 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8860 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8861 int rc = IPR_RC_JOB_CONTINUE;
8863 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8864 ioa_cfg->cfg_locked = 1;
8865 ipr_cmd->job_step = ioa_cfg->reset;
8867 if (ipr_cmd->u.time_left) {
8868 rc = IPR_RC_JOB_RETURN;
8869 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8870 ipr_reset_start_timer(ipr_cmd,
8871 IPR_CHECK_FOR_RESET_TIMEOUT);
8873 ipr_cmd->job_step = ioa_cfg->reset;
8874 dev_err(&ioa_cfg->pdev->dev,
8875 "Timed out waiting to lock config access. Resetting anyway.\n");
8883 * ipr_reset_block_config_access - Block config access to the IOA
8884 * @ipr_cmd: ipr command struct
8886 * Description: This attempts to block config access to the IOA
8889 * IPR_RC_JOB_CONTINUE
8891 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8893 ipr_cmd->ioa_cfg->cfg_locked = 0;
8894 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8895 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8896 return IPR_RC_JOB_CONTINUE;
8900 * ipr_reset_allowed - Query whether or not IOA can be reset
8901 * @ioa_cfg: ioa config struct
8904 * 0 if reset not allowed / non-zero if reset is allowed
8906 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8908 volatile u32 temp_reg;
8910 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8911 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8915 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8916 * @ipr_cmd: ipr command struct
8918 * Description: This function waits for adapter permission to run BIST,
8919 * then runs BIST. If the adapter does not give permission after a
8920 * reasonable time, we will reset the adapter anyway. The impact of
8921 * resetting the adapter without warning the adapter is the risk of
8922 * losing the persistent error log on the adapter. If the adapter is
8923 * reset while it is writing to the flash on the adapter, the flash
8924 * segment will have bad ECC and be zeroed.
8927 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8929 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8932 int rc = IPR_RC_JOB_RETURN;
8934 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8935 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8936 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8938 ipr_cmd->job_step = ipr_reset_block_config_access;
8939 rc = IPR_RC_JOB_CONTINUE;
8946 * ipr_reset_alert - Alert the adapter of a pending reset
8947 * @ipr_cmd: ipr command struct
8949 * Description: This function alerts the adapter that it will be reset.
8950 * If memory space is not currently enabled, proceed directly
8951 * to running BIST on the adapter. The timer must always be started
8952 * so we guarantee we do not run BIST from ipr_isr.
8957 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8959 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8964 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8966 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8967 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8968 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8969 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8971 ipr_cmd->job_step = ipr_reset_block_config_access;
8974 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8975 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8978 return IPR_RC_JOB_RETURN;
8982 * ipr_reset_quiesce_done - Complete IOA disconnect
8983 * @ipr_cmd: ipr command struct
8985 * Description: Freeze the adapter to complete quiesce processing
8988 * IPR_RC_JOB_CONTINUE
8990 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8992 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8995 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8996 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8998 return IPR_RC_JOB_CONTINUE;
9002 * ipr_reset_cancel_hcam_done - Check for outstanding commands
9003 * @ipr_cmd: ipr command struct
9005 * Description: Ensure nothing is outstanding to the IOA and
9006 * proceed with IOA disconnect. Otherwise reset the IOA.
9009 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
9011 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
9013 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9014 struct ipr_cmnd *loop_cmd;
9015 struct ipr_hrr_queue *hrrq;
9016 int rc = IPR_RC_JOB_CONTINUE;
9020 ipr_cmd->job_step = ipr_reset_quiesce_done;
9022 for_each_hrrq(hrrq, ioa_cfg) {
9023 spin_lock(&hrrq->_lock);
9024 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
9026 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9027 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9028 rc = IPR_RC_JOB_RETURN;
9031 spin_unlock(&hrrq->_lock);
9042 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
9043 * @ipr_cmd: ipr command struct
9045 * Description: Cancel any oustanding HCAMs to the IOA.
9048 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9050 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
9052 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9053 int rc = IPR_RC_JOB_CONTINUE;
9054 struct ipr_cmd_pkt *cmd_pkt;
9055 struct ipr_cmnd *hcam_cmd;
9056 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
9059 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
9061 if (!hrrq->ioa_is_dead) {
9062 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
9063 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
9064 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
9067 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9068 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9069 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
9070 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
9071 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
9072 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
9073 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
9074 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
9075 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
9076 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
9077 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
9078 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
9079 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
9080 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
9082 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9083 IPR_CANCEL_TIMEOUT);
9085 rc = IPR_RC_JOB_RETURN;
9086 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9091 ipr_cmd->job_step = ipr_reset_alert;
9098 * ipr_reset_ucode_download_done - Microcode download completion
9099 * @ipr_cmd: ipr command struct
9101 * Description: This function unmaps the microcode download buffer.
9104 * IPR_RC_JOB_CONTINUE
9106 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
9108 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9109 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9111 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
9112 sglist->num_sg, DMA_TO_DEVICE);
9114 ipr_cmd->job_step = ipr_reset_alert;
9115 return IPR_RC_JOB_CONTINUE;
9119 * ipr_reset_ucode_download - Download microcode to the adapter
9120 * @ipr_cmd: ipr command struct
9122 * Description: This function checks to see if it there is microcode
9123 * to download to the adapter. If there is, a download is performed.
9126 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9128 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
9130 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9131 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9134 ipr_cmd->job_step = ipr_reset_alert;
9137 return IPR_RC_JOB_CONTINUE;
9139 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9140 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
9141 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
9142 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
9143 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
9144 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
9145 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
9148 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
9150 ipr_build_ucode_ioadl(ipr_cmd, sglist);
9151 ipr_cmd->job_step = ipr_reset_ucode_download_done;
9153 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9154 IPR_WRITE_BUFFER_TIMEOUT);
9157 return IPR_RC_JOB_RETURN;
9161 * ipr_reset_shutdown_ioa - Shutdown the adapter
9162 * @ipr_cmd: ipr command struct
9164 * Description: This function issues an adapter shutdown of the
9165 * specified type to the specified adapter as part of the
9166 * adapter reset job.
9169 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9171 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
9173 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9174 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
9175 unsigned long timeout;
9176 int rc = IPR_RC_JOB_CONTINUE;
9179 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
9180 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9181 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
9182 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
9183 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9184 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9185 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9186 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
9188 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
9189 timeout = IPR_SHUTDOWN_TIMEOUT;
9190 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
9191 timeout = IPR_INTERNAL_TIMEOUT;
9192 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
9193 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
9195 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
9197 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
9199 rc = IPR_RC_JOB_RETURN;
9200 ipr_cmd->job_step = ipr_reset_ucode_download;
9202 ipr_cmd->job_step = ipr_reset_alert;
9209 * ipr_reset_ioa_job - Adapter reset job
9210 * @ipr_cmd: ipr command struct
9212 * Description: This function is the job router for the adapter reset job.
9217 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
9220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9223 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
9225 if (ioa_cfg->reset_cmd != ipr_cmd) {
9227 * We are doing nested adapter resets and this is
9228 * not the current reset job.
9230 list_add_tail(&ipr_cmd->queue,
9231 &ipr_cmd->hrrq->hrrq_free_q);
9235 if (IPR_IOASC_SENSE_KEY(ioasc)) {
9236 rc = ipr_cmd->job_step_failed(ipr_cmd);
9237 if (rc == IPR_RC_JOB_RETURN)
9241 ipr_reinit_ipr_cmnd(ipr_cmd);
9242 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
9243 rc = ipr_cmd->job_step(ipr_cmd);
9244 } while (rc == IPR_RC_JOB_CONTINUE);
9248 * _ipr_initiate_ioa_reset - Initiate an adapter reset
9249 * @ioa_cfg: ioa config struct
9250 * @job_step: first job step of reset job
9251 * @shutdown_type: shutdown type
9253 * Description: This function will initiate the reset of the given adapter
9254 * starting at the selected job step.
9255 * If the caller needs to wait on the completion of the reset,
9256 * the caller must sleep on the reset_wait_q.
9261 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9262 int (*job_step) (struct ipr_cmnd *),
9263 enum ipr_shutdown_type shutdown_type)
9265 struct ipr_cmnd *ipr_cmd;
9268 ioa_cfg->in_reset_reload = 1;
9269 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9270 spin_lock(&ioa_cfg->hrrq[i]._lock);
9271 ioa_cfg->hrrq[i].allow_cmds = 0;
9272 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9275 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9276 ioa_cfg->scsi_unblock = 0;
9277 ioa_cfg->scsi_blocked = 1;
9278 scsi_block_requests(ioa_cfg->host);
9281 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9282 ioa_cfg->reset_cmd = ipr_cmd;
9283 ipr_cmd->job_step = job_step;
9284 ipr_cmd->u.shutdown_type = shutdown_type;
9286 ipr_reset_ioa_job(ipr_cmd);
9290 * ipr_initiate_ioa_reset - Initiate an adapter reset
9291 * @ioa_cfg: ioa config struct
9292 * @shutdown_type: shutdown type
9294 * Description: This function will initiate the reset of the given adapter.
9295 * If the caller needs to wait on the completion of the reset,
9296 * the caller must sleep on the reset_wait_q.
9301 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9302 enum ipr_shutdown_type shutdown_type)
9306 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
9309 if (ioa_cfg->in_reset_reload) {
9310 if (ioa_cfg->sdt_state == GET_DUMP)
9311 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9312 else if (ioa_cfg->sdt_state == READ_DUMP)
9313 ioa_cfg->sdt_state = ABORT_DUMP;
9316 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9317 dev_err(&ioa_cfg->pdev->dev,
9318 "IOA taken offline - error recovery failed\n");
9320 ioa_cfg->reset_retries = 0;
9321 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9322 spin_lock(&ioa_cfg->hrrq[i]._lock);
9323 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9324 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9328 if (ioa_cfg->in_ioa_bringdown) {
9329 ioa_cfg->reset_cmd = NULL;
9330 ioa_cfg->in_reset_reload = 0;
9331 ipr_fail_all_ops(ioa_cfg);
9332 wake_up_all(&ioa_cfg->reset_wait_q);
9334 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9335 ioa_cfg->scsi_unblock = 1;
9336 schedule_work(&ioa_cfg->work_q);
9340 ioa_cfg->in_ioa_bringdown = 1;
9341 shutdown_type = IPR_SHUTDOWN_NONE;
9345 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9350 * ipr_reset_freeze - Hold off all I/O activity
9351 * @ipr_cmd: ipr command struct
9353 * Description: If the PCI slot is frozen, hold off all I/O
9354 * activity; then, as soon as the slot is available again,
9355 * initiate an adapter reset.
9357 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9359 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9362 /* Disallow new interrupts, avoid loop */
9363 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9364 spin_lock(&ioa_cfg->hrrq[i]._lock);
9365 ioa_cfg->hrrq[i].allow_interrupts = 0;
9366 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9369 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9370 ipr_cmd->done = ipr_reset_ioa_job;
9371 return IPR_RC_JOB_RETURN;
9375 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9376 * @pdev: PCI device struct
9378 * Description: This routine is called to tell us that the MMIO
9379 * access to the IOA has been restored
9381 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9383 unsigned long flags = 0;
9384 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9386 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9387 if (!ioa_cfg->probe_done)
9388 pci_save_state(pdev);
9389 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9390 return PCI_ERS_RESULT_NEED_RESET;
9394 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9395 * @pdev: PCI device struct
9397 * Description: This routine is called to tell us that the PCI bus
9398 * is down. Can't do anything here, except put the device driver
9399 * into a holding pattern, waiting for the PCI bus to come back.
9401 static void ipr_pci_frozen(struct pci_dev *pdev)
9403 unsigned long flags = 0;
9404 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9406 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9407 if (ioa_cfg->probe_done)
9408 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9413 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9414 * @pdev: PCI device struct
9416 * Description: This routine is called by the pci error recovery
9417 * code after the PCI slot has been reset, just before we
9418 * should resume normal operations.
9420 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9422 unsigned long flags = 0;
9423 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9425 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9426 if (ioa_cfg->probe_done) {
9427 if (ioa_cfg->needs_warm_reset)
9428 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9430 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9433 wake_up_all(&ioa_cfg->eeh_wait_q);
9434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9435 return PCI_ERS_RESULT_RECOVERED;
9439 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9440 * @pdev: PCI device struct
9442 * Description: This routine is called when the PCI bus has
9443 * permanently failed.
9445 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9447 unsigned long flags = 0;
9448 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9451 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9452 if (ioa_cfg->probe_done) {
9453 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9454 ioa_cfg->sdt_state = ABORT_DUMP;
9455 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9456 ioa_cfg->in_ioa_bringdown = 1;
9457 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9458 spin_lock(&ioa_cfg->hrrq[i]._lock);
9459 ioa_cfg->hrrq[i].allow_cmds = 0;
9460 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9463 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9465 wake_up_all(&ioa_cfg->eeh_wait_q);
9466 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9470 * ipr_pci_error_detected - Called when a PCI error is detected.
9471 * @pdev: PCI device struct
9472 * @state: PCI channel state
9474 * Description: Called when a PCI error is detected.
9477 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9479 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9480 pci_channel_state_t state)
9483 case pci_channel_io_frozen:
9484 ipr_pci_frozen(pdev);
9485 return PCI_ERS_RESULT_CAN_RECOVER;
9486 case pci_channel_io_perm_failure:
9487 ipr_pci_perm_failure(pdev);
9488 return PCI_ERS_RESULT_DISCONNECT;
9492 return PCI_ERS_RESULT_NEED_RESET;
9496 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9497 * @ioa_cfg: ioa cfg struct
9499 * Description: This is the second phase of adapter initialization
9500 * This function takes care of initilizing the adapter to the point
9501 * where it can accept new commands.
9503 * 0 on success / -EIO on failure
9505 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9508 unsigned long host_lock_flags = 0;
9511 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9512 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9513 ioa_cfg->probe_done = 1;
9514 if (ioa_cfg->needs_hard_reset) {
9515 ioa_cfg->needs_hard_reset = 0;
9516 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9518 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9520 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9527 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9528 * @ioa_cfg: ioa config struct
9533 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9537 if (ioa_cfg->ipr_cmnd_list) {
9538 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9539 if (ioa_cfg->ipr_cmnd_list[i])
9540 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9541 ioa_cfg->ipr_cmnd_list[i],
9542 ioa_cfg->ipr_cmnd_list_dma[i]);
9544 ioa_cfg->ipr_cmnd_list[i] = NULL;
9548 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9550 kfree(ioa_cfg->ipr_cmnd_list);
9551 kfree(ioa_cfg->ipr_cmnd_list_dma);
9552 ioa_cfg->ipr_cmnd_list = NULL;
9553 ioa_cfg->ipr_cmnd_list_dma = NULL;
9554 ioa_cfg->ipr_cmd_pool = NULL;
9558 * ipr_free_mem - Frees memory allocated for an adapter
9559 * @ioa_cfg: ioa cfg struct
9564 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9568 kfree(ioa_cfg->res_entries);
9569 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9570 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9571 ipr_free_cmd_blks(ioa_cfg);
9573 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9574 dma_free_coherent(&ioa_cfg->pdev->dev,
9575 sizeof(u32) * ioa_cfg->hrrq[i].size,
9576 ioa_cfg->hrrq[i].host_rrq,
9577 ioa_cfg->hrrq[i].host_rrq_dma);
9579 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9580 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9582 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9583 dma_free_coherent(&ioa_cfg->pdev->dev,
9584 sizeof(struct ipr_hostrcb),
9585 ioa_cfg->hostrcb[i],
9586 ioa_cfg->hostrcb_dma[i]);
9589 ipr_free_dump(ioa_cfg);
9590 kfree(ioa_cfg->trace);
9594 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9595 * @ioa_cfg: ipr cfg struct
9597 * This function frees all allocated IRQs for the
9598 * specified adapter.
9603 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9605 struct pci_dev *pdev = ioa_cfg->pdev;
9608 for (i = 0; i < ioa_cfg->nvectors; i++)
9609 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]);
9610 pci_free_irq_vectors(pdev);
9614 * ipr_free_all_resources - Free all allocated resources for an adapter.
9615 * @ioa_cfg: ioa config struct
9617 * This function frees all allocated resources for the
9618 * specified adapter.
9623 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9625 struct pci_dev *pdev = ioa_cfg->pdev;
9628 ipr_free_irqs(ioa_cfg);
9629 if (ioa_cfg->reset_work_q)
9630 destroy_workqueue(ioa_cfg->reset_work_q);
9631 iounmap(ioa_cfg->hdw_dma_regs);
9632 pci_release_regions(pdev);
9633 ipr_free_mem(ioa_cfg);
9634 scsi_host_put(ioa_cfg->host);
9635 pci_disable_device(pdev);
9640 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9641 * @ioa_cfg: ioa config struct
9644 * 0 on success / -ENOMEM on allocation failure
9646 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9648 struct ipr_cmnd *ipr_cmd;
9649 struct ipr_ioarcb *ioarcb;
9650 dma_addr_t dma_addr;
9651 int i, entries_each_hrrq, hrrq_id = 0;
9653 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9654 sizeof(struct ipr_cmnd), 512, 0);
9656 if (!ioa_cfg->ipr_cmd_pool)
9659 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9660 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9662 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9663 ipr_free_cmd_blks(ioa_cfg);
9667 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9668 if (ioa_cfg->hrrq_num > 1) {
9670 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9671 ioa_cfg->hrrq[i].min_cmd_id = 0;
9672 ioa_cfg->hrrq[i].max_cmd_id =
9673 (entries_each_hrrq - 1);
9676 IPR_NUM_BASE_CMD_BLKS/
9677 (ioa_cfg->hrrq_num - 1);
9678 ioa_cfg->hrrq[i].min_cmd_id =
9679 IPR_NUM_INTERNAL_CMD_BLKS +
9680 (i - 1) * entries_each_hrrq;
9681 ioa_cfg->hrrq[i].max_cmd_id =
9682 (IPR_NUM_INTERNAL_CMD_BLKS +
9683 i * entries_each_hrrq - 1);
9686 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9687 ioa_cfg->hrrq[i].min_cmd_id = 0;
9688 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9690 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9693 BUG_ON(ioa_cfg->hrrq_num == 0);
9695 i = IPR_NUM_CMD_BLKS -
9696 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9698 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9699 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9702 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9703 ipr_cmd = dma_pool_zalloc(ioa_cfg->ipr_cmd_pool,
9704 GFP_KERNEL, &dma_addr);
9707 ipr_free_cmd_blks(ioa_cfg);
9711 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9712 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9714 ioarcb = &ipr_cmd->ioarcb;
9715 ipr_cmd->dma_addr = dma_addr;
9717 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9719 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9721 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9722 if (ioa_cfg->sis64) {
9723 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9724 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9725 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9726 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9728 ioarcb->write_ioadl_addr =
9729 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9730 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9731 ioarcb->ioasa_host_pci_addr =
9732 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9734 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9735 ipr_cmd->cmd_index = i;
9736 ipr_cmd->ioa_cfg = ioa_cfg;
9737 ipr_cmd->sense_buffer_dma = dma_addr +
9738 offsetof(struct ipr_cmnd, sense_buffer);
9740 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9741 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9742 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9743 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9751 * ipr_alloc_mem - Allocate memory for an adapter
9752 * @ioa_cfg: ioa config struct
9755 * 0 on success / non-zero for error
9757 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9759 struct pci_dev *pdev = ioa_cfg->pdev;
9760 int i, rc = -ENOMEM;
9763 ioa_cfg->res_entries = kcalloc(ioa_cfg->max_devs_supported,
9764 sizeof(struct ipr_resource_entry),
9767 if (!ioa_cfg->res_entries)
9770 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9771 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9772 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9775 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9776 sizeof(struct ipr_misc_cbs),
9777 &ioa_cfg->vpd_cbs_dma,
9780 if (!ioa_cfg->vpd_cbs)
9781 goto out_free_res_entries;
9783 if (ipr_alloc_cmd_blks(ioa_cfg))
9784 goto out_free_vpd_cbs;
9786 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9787 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9788 sizeof(u32) * ioa_cfg->hrrq[i].size,
9789 &ioa_cfg->hrrq[i].host_rrq_dma,
9792 if (!ioa_cfg->hrrq[i].host_rrq) {
9794 dma_free_coherent(&pdev->dev,
9795 sizeof(u32) * ioa_cfg->hrrq[i].size,
9796 ioa_cfg->hrrq[i].host_rrq,
9797 ioa_cfg->hrrq[i].host_rrq_dma);
9798 goto out_ipr_free_cmd_blocks;
9800 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9803 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9804 ioa_cfg->cfg_table_size,
9805 &ioa_cfg->cfg_table_dma,
9808 if (!ioa_cfg->u.cfg_table)
9809 goto out_free_host_rrq;
9811 for (i = 0; i < IPR_MAX_HCAMS; i++) {
9812 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9813 sizeof(struct ipr_hostrcb),
9814 &ioa_cfg->hostrcb_dma[i],
9817 if (!ioa_cfg->hostrcb[i])
9818 goto out_free_hostrcb_dma;
9820 ioa_cfg->hostrcb[i]->hostrcb_dma =
9821 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9822 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9823 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9826 ioa_cfg->trace = kcalloc(IPR_NUM_TRACE_ENTRIES,
9827 sizeof(struct ipr_trace_entry),
9830 if (!ioa_cfg->trace)
9831 goto out_free_hostrcb_dma;
9838 out_free_hostrcb_dma:
9840 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9841 ioa_cfg->hostrcb[i],
9842 ioa_cfg->hostrcb_dma[i]);
9844 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9845 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9847 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9848 dma_free_coherent(&pdev->dev,
9849 sizeof(u32) * ioa_cfg->hrrq[i].size,
9850 ioa_cfg->hrrq[i].host_rrq,
9851 ioa_cfg->hrrq[i].host_rrq_dma);
9853 out_ipr_free_cmd_blocks:
9854 ipr_free_cmd_blks(ioa_cfg);
9856 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9857 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9858 out_free_res_entries:
9859 kfree(ioa_cfg->res_entries);
9864 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9865 * @ioa_cfg: ioa config struct
9870 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9874 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9875 ioa_cfg->bus_attr[i].bus = i;
9876 ioa_cfg->bus_attr[i].qas_enabled = 0;
9877 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9878 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9879 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9881 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9886 * ipr_init_regs - Initialize IOA registers
9887 * @ioa_cfg: ioa config struct
9892 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9894 const struct ipr_interrupt_offsets *p;
9895 struct ipr_interrupts *t;
9898 p = &ioa_cfg->chip_cfg->regs;
9900 base = ioa_cfg->hdw_dma_regs;
9902 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9903 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9904 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9905 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9906 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9907 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9908 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9909 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9910 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9911 t->ioarrin_reg = base + p->ioarrin_reg;
9912 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9913 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9914 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9915 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9916 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9917 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9919 if (ioa_cfg->sis64) {
9920 t->init_feedback_reg = base + p->init_feedback_reg;
9921 t->dump_addr_reg = base + p->dump_addr_reg;
9922 t->dump_data_reg = base + p->dump_data_reg;
9923 t->endian_swap_reg = base + p->endian_swap_reg;
9928 * ipr_init_ioa_cfg - Initialize IOA config struct
9929 * @ioa_cfg: ioa config struct
9930 * @host: scsi host struct
9931 * @pdev: PCI dev struct
9936 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9937 struct Scsi_Host *host, struct pci_dev *pdev)
9941 ioa_cfg->host = host;
9942 ioa_cfg->pdev = pdev;
9943 ioa_cfg->log_level = ipr_log_level;
9944 ioa_cfg->doorbell = IPR_DOORBELL;
9945 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9946 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9947 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9948 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9949 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9950 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9952 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9953 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9954 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
9955 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9956 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9957 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9958 INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread);
9959 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9960 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9961 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9962 ioa_cfg->sdt_state = INACTIVE;
9964 ipr_initialize_bus_attr(ioa_cfg);
9965 ioa_cfg->max_devs_supported = ipr_max_devs;
9967 if (ioa_cfg->sis64) {
9968 host->max_channel = IPR_MAX_SIS64_BUSES;
9969 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9970 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9971 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9972 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9973 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9974 + ((sizeof(struct ipr_config_table_entry64)
9975 * ioa_cfg->max_devs_supported)));
9977 host->max_channel = IPR_VSET_BUS;
9978 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9979 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9980 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9981 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9982 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9983 + ((sizeof(struct ipr_config_table_entry)
9984 * ioa_cfg->max_devs_supported)));
9987 host->unique_id = host->host_no;
9988 host->max_cmd_len = IPR_MAX_CDB_LEN;
9989 host->can_queue = ioa_cfg->max_cmds;
9990 pci_set_drvdata(pdev, ioa_cfg);
9992 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9993 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9994 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9995 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9997 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9999 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
10004 * ipr_get_chip_info - Find adapter chip information
10005 * @dev_id: PCI device id struct
10008 * ptr to chip information on success / NULL on failure
10010 static const struct ipr_chip_t *
10011 ipr_get_chip_info(const struct pci_device_id *dev_id)
10015 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
10016 if (ipr_chip[i].vendor == dev_id->vendor &&
10017 ipr_chip[i].device == dev_id->device)
10018 return &ipr_chip[i];
10023 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
10024 * during probe time
10025 * @ioa_cfg: ioa config struct
10030 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
10032 struct pci_dev *pdev = ioa_cfg->pdev;
10034 if (pci_channel_offline(pdev)) {
10035 wait_event_timeout(ioa_cfg->eeh_wait_q,
10036 !pci_channel_offline(pdev),
10037 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
10038 pci_restore_state(pdev);
10042 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
10044 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
10046 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
10047 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
10048 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
10049 ioa_cfg->vectors_info[vec_idx].
10050 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
10054 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
10055 struct pci_dev *pdev)
10059 for (i = 1; i < ioa_cfg->nvectors; i++) {
10060 rc = request_irq(pci_irq_vector(pdev, i),
10063 ioa_cfg->vectors_info[i].desc,
10064 &ioa_cfg->hrrq[i]);
10067 free_irq(pci_irq_vector(pdev, i),
10068 &ioa_cfg->hrrq[i]);
10076 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
10077 * @devp: PCI device struct
10080 * Description: Simply set the msi_received flag to 1 indicating that
10081 * Message Signaled Interrupts are supported.
10084 * 0 on success / non-zero on failure
10086 static irqreturn_t ipr_test_intr(int irq, void *devp)
10088 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
10089 unsigned long lock_flags = 0;
10091 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
10092 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10094 ioa_cfg->msi_received = 1;
10095 wake_up(&ioa_cfg->msi_wait_q);
10097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10098 return IRQ_HANDLED;
10102 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
10103 * @ioa_cfg: ioa config struct
10104 * @pdev: PCI device struct
10106 * Description: This routine sets up and initiates a test interrupt to determine
10107 * if the interrupt is received via the ipr_test_intr() service routine.
10108 * If the tests fails, the driver will fall back to LSI.
10111 * 0 on success / non-zero on failure
10113 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
10116 unsigned long lock_flags = 0;
10117 int irq = pci_irq_vector(pdev, 0);
10121 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10122 init_waitqueue_head(&ioa_cfg->msi_wait_q);
10123 ioa_cfg->msi_received = 0;
10124 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10125 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
10126 readl(ioa_cfg->regs.sense_interrupt_mask_reg);
10127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10129 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
10131 dev_err(&pdev->dev, "Can not assign irq %d\n", irq);
10133 } else if (ipr_debug)
10134 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
10136 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
10137 readl(ioa_cfg->regs.sense_interrupt_reg);
10138 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
10139 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10140 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10142 if (!ioa_cfg->msi_received) {
10143 /* MSI test failed */
10144 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
10146 } else if (ipr_debug)
10147 dev_info(&pdev->dev, "MSI test succeeded.\n");
10149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10151 free_irq(irq, ioa_cfg);
10158 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
10159 * @pdev: PCI device struct
10160 * @dev_id: PCI device id struct
10163 * 0 on success / non-zero on failure
10165 static int ipr_probe_ioa(struct pci_dev *pdev,
10166 const struct pci_device_id *dev_id)
10168 struct ipr_ioa_cfg *ioa_cfg;
10169 struct Scsi_Host *host;
10170 unsigned long ipr_regs_pci;
10171 void __iomem *ipr_regs;
10172 int rc = PCIBIOS_SUCCESSFUL;
10173 volatile u32 mask, uproc, interrupts;
10174 unsigned long lock_flags, driver_lock_flags;
10175 unsigned int irq_flag;
10179 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
10180 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
10183 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
10188 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
10189 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
10190 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
10192 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
10194 if (!ioa_cfg->ipr_chip) {
10195 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
10196 dev_id->vendor, dev_id->device);
10197 goto out_scsi_host_put;
10200 /* set SIS 32 or SIS 64 */
10201 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
10202 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
10203 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
10204 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
10206 if (ipr_transop_timeout)
10207 ioa_cfg->transop_timeout = ipr_transop_timeout;
10208 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10209 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10211 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10213 ioa_cfg->revid = pdev->revision;
10215 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10217 ipr_regs_pci = pci_resource_start(pdev, 0);
10219 rc = pci_request_regions(pdev, IPR_NAME);
10221 dev_err(&pdev->dev,
10222 "Couldn't register memory range of registers\n");
10223 goto out_scsi_host_put;
10226 rc = pci_enable_device(pdev);
10228 if (rc || pci_channel_offline(pdev)) {
10229 if (pci_channel_offline(pdev)) {
10230 ipr_wait_for_pci_err_recovery(ioa_cfg);
10231 rc = pci_enable_device(pdev);
10235 dev_err(&pdev->dev, "Cannot enable adapter\n");
10236 ipr_wait_for_pci_err_recovery(ioa_cfg);
10237 goto out_release_regions;
10241 ipr_regs = pci_ioremap_bar(pdev, 0);
10244 dev_err(&pdev->dev,
10245 "Couldn't map memory range of registers\n");
10250 ioa_cfg->hdw_dma_regs = ipr_regs;
10251 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10252 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10254 ipr_init_regs(ioa_cfg);
10256 if (ioa_cfg->sis64) {
10257 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10259 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10260 rc = dma_set_mask_and_coherent(&pdev->dev,
10264 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10267 dev_err(&pdev->dev, "Failed to set DMA mask\n");
10268 goto cleanup_nomem;
10271 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10272 ioa_cfg->chip_cfg->cache_line_size);
10274 if (rc != PCIBIOS_SUCCESSFUL) {
10275 dev_err(&pdev->dev, "Write of cache line size failed\n");
10276 ipr_wait_for_pci_err_recovery(ioa_cfg);
10278 goto cleanup_nomem;
10281 /* Issue MMIO read to ensure card is not in EEH */
10282 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10283 ipr_wait_for_pci_err_recovery(ioa_cfg);
10285 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10286 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10287 IPR_MAX_MSIX_VECTORS);
10288 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10291 irq_flag = PCI_IRQ_LEGACY;
10292 if (ioa_cfg->ipr_chip->has_msi)
10293 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
10294 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
10296 ipr_wait_for_pci_err_recovery(ioa_cfg);
10297 goto cleanup_nomem;
10299 ioa_cfg->nvectors = rc;
10301 if (!pdev->msi_enabled && !pdev->msix_enabled)
10302 ioa_cfg->clear_isr = 1;
10304 pci_set_master(pdev);
10306 if (pci_channel_offline(pdev)) {
10307 ipr_wait_for_pci_err_recovery(ioa_cfg);
10308 pci_set_master(pdev);
10309 if (pci_channel_offline(pdev)) {
10311 goto out_msi_disable;
10315 if (pdev->msi_enabled || pdev->msix_enabled) {
10316 rc = ipr_test_msi(ioa_cfg, pdev);
10319 dev_info(&pdev->dev,
10320 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors,
10321 pdev->msix_enabled ? "-X" : "");
10324 ipr_wait_for_pci_err_recovery(ioa_cfg);
10325 pci_free_irq_vectors(pdev);
10327 ioa_cfg->nvectors = 1;
10328 ioa_cfg->clear_isr = 1;
10331 goto out_msi_disable;
10335 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10336 (unsigned int)num_online_cpus(),
10337 (unsigned int)IPR_MAX_HRRQ_NUM);
10339 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10340 goto out_msi_disable;
10342 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10343 goto out_msi_disable;
10345 rc = ipr_alloc_mem(ioa_cfg);
10347 dev_err(&pdev->dev,
10348 "Couldn't allocate enough memory for device driver!\n");
10349 goto out_msi_disable;
10352 /* Save away PCI config space for use following IOA reset */
10353 rc = pci_save_state(pdev);
10355 if (rc != PCIBIOS_SUCCESSFUL) {
10356 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10358 goto cleanup_nolog;
10362 * If HRRQ updated interrupt is not masked, or reset alert is set,
10363 * the card is in an unknown state and needs a hard reset
10365 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10366 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10367 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10368 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10369 ioa_cfg->needs_hard_reset = 1;
10370 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10371 ioa_cfg->needs_hard_reset = 1;
10372 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10373 ioa_cfg->ioa_unit_checked = 1;
10375 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10376 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10379 if (pdev->msi_enabled || pdev->msix_enabled) {
10380 name_msi_vectors(ioa_cfg);
10381 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0,
10382 ioa_cfg->vectors_info[0].desc,
10383 &ioa_cfg->hrrq[0]);
10385 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev);
10387 rc = request_irq(pdev->irq, ipr_isr,
10389 IPR_NAME, &ioa_cfg->hrrq[0]);
10392 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10394 goto cleanup_nolog;
10397 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10398 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10399 ioa_cfg->needs_warm_reset = 1;
10400 ioa_cfg->reset = ipr_reset_slot_reset;
10402 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10403 WQ_MEM_RECLAIM, host->host_no);
10405 if (!ioa_cfg->reset_work_q) {
10406 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10411 ioa_cfg->reset = ipr_reset_start_bist;
10413 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10414 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10415 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10422 ipr_free_irqs(ioa_cfg);
10424 ipr_free_mem(ioa_cfg);
10426 ipr_wait_for_pci_err_recovery(ioa_cfg);
10427 pci_free_irq_vectors(pdev);
10431 pci_disable_device(pdev);
10432 out_release_regions:
10433 pci_release_regions(pdev);
10435 scsi_host_put(host);
10440 * ipr_initiate_ioa_bringdown - Bring down an adapter
10441 * @ioa_cfg: ioa config struct
10442 * @shutdown_type: shutdown type
10444 * Description: This function will initiate bringing down the adapter.
10445 * This consists of issuing an IOA shutdown to the adapter
10446 * to flush the cache, and running BIST.
10447 * If the caller needs to wait on the completion of the reset,
10448 * the caller must sleep on the reset_wait_q.
10453 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10454 enum ipr_shutdown_type shutdown_type)
10457 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10458 ioa_cfg->sdt_state = ABORT_DUMP;
10459 ioa_cfg->reset_retries = 0;
10460 ioa_cfg->in_ioa_bringdown = 1;
10461 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10466 * __ipr_remove - Remove a single adapter
10467 * @pdev: pci device struct
10469 * Adapter hot plug remove entry point.
10474 static void __ipr_remove(struct pci_dev *pdev)
10476 unsigned long host_lock_flags = 0;
10477 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10479 unsigned long driver_lock_flags;
10482 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10483 while (ioa_cfg->in_reset_reload) {
10484 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10485 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10486 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10489 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10490 spin_lock(&ioa_cfg->hrrq[i]._lock);
10491 ioa_cfg->hrrq[i].removing_ioa = 1;
10492 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10495 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10498 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10499 flush_work(&ioa_cfg->work_q);
10500 if (ioa_cfg->reset_work_q)
10501 flush_workqueue(ioa_cfg->reset_work_q);
10502 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10503 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10505 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10506 list_del(&ioa_cfg->queue);
10507 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10509 if (ioa_cfg->sdt_state == ABORT_DUMP)
10510 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10511 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10513 ipr_free_all_resources(ioa_cfg);
10519 * ipr_remove - IOA hot plug remove entry point
10520 * @pdev: pci device struct
10522 * Adapter hot plug remove entry point.
10527 static void ipr_remove(struct pci_dev *pdev)
10529 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10533 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10535 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10537 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10538 &ipr_ioa_async_err_log);
10539 scsi_remove_host(ioa_cfg->host);
10541 __ipr_remove(pdev);
10547 * ipr_probe - Adapter hot plug add entry point
10548 * @pdev: pci device struct
10549 * @dev_id: pci device ID
10552 * 0 on success / non-zero on failure
10554 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10556 struct ipr_ioa_cfg *ioa_cfg;
10557 unsigned long flags;
10560 rc = ipr_probe_ioa(pdev, dev_id);
10565 ioa_cfg = pci_get_drvdata(pdev);
10566 rc = ipr_probe_ioa_part2(ioa_cfg);
10569 __ipr_remove(pdev);
10573 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10576 __ipr_remove(pdev);
10580 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10584 scsi_remove_host(ioa_cfg->host);
10585 __ipr_remove(pdev);
10589 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
10590 &ipr_ioa_async_err_log);
10593 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10595 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10597 scsi_remove_host(ioa_cfg->host);
10598 __ipr_remove(pdev);
10602 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10606 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10607 &ipr_ioa_async_err_log);
10608 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10610 scsi_remove_host(ioa_cfg->host);
10611 __ipr_remove(pdev);
10614 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10615 ioa_cfg->scan_enabled = 1;
10616 schedule_work(&ioa_cfg->work_q);
10617 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10619 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10621 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10622 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10623 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
10624 ioa_cfg->iopoll_weight, ipr_iopoll);
10628 scsi_scan_host(ioa_cfg->host);
10634 * ipr_shutdown - Shutdown handler.
10635 * @pdev: pci device struct
10637 * This function is invoked upon system shutdown/reboot. It will issue
10638 * an adapter shutdown to the adapter to flush the write cache.
10643 static void ipr_shutdown(struct pci_dev *pdev)
10645 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10646 unsigned long lock_flags = 0;
10647 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10651 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10652 ioa_cfg->iopoll_weight = 0;
10653 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10654 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
10657 while (ioa_cfg->in_reset_reload) {
10658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10659 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10660 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10663 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10664 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10666 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10668 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10669 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10670 ipr_free_irqs(ioa_cfg);
10671 pci_disable_device(ioa_cfg->pdev);
10675 static struct pci_device_id ipr_pci_table[] = {
10676 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10677 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10678 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10679 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10680 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10681 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10682 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10683 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10684 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10685 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10686 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10687 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10688 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10689 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10690 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10691 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10692 IPR_USE_LONG_TRANSOP_TIMEOUT },
10693 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10694 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10695 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10696 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10697 IPR_USE_LONG_TRANSOP_TIMEOUT },
10698 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10699 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10700 IPR_USE_LONG_TRANSOP_TIMEOUT },
10701 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10702 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10703 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10704 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10705 IPR_USE_LONG_TRANSOP_TIMEOUT},
10706 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10707 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10708 IPR_USE_LONG_TRANSOP_TIMEOUT },
10709 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10710 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10711 IPR_USE_LONG_TRANSOP_TIMEOUT },
10712 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10713 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10714 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10715 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10716 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10717 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10718 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10719 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10720 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10721 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10722 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10723 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10724 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10725 IPR_USE_LONG_TRANSOP_TIMEOUT },
10726 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10727 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10728 IPR_USE_LONG_TRANSOP_TIMEOUT },
10729 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10730 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10731 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10732 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10733 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10734 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10735 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10736 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10737 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10738 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10739 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10740 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10741 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10742 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10743 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10744 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10745 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10746 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10747 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10748 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10749 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10750 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10751 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10752 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10753 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10754 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10755 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10756 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10757 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10758 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10759 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10760 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10761 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10762 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10763 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10764 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10765 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10766 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10767 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10768 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10769 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10770 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10771 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10772 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10773 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10774 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10775 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10776 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10777 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10778 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10779 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10780 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10781 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10782 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 },
10783 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10784 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 },
10787 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10789 static const struct pci_error_handlers ipr_err_handler = {
10790 .error_detected = ipr_pci_error_detected,
10791 .mmio_enabled = ipr_pci_mmio_enabled,
10792 .slot_reset = ipr_pci_slot_reset,
10795 static struct pci_driver ipr_driver = {
10797 .id_table = ipr_pci_table,
10798 .probe = ipr_probe,
10799 .remove = ipr_remove,
10800 .shutdown = ipr_shutdown,
10801 .err_handler = &ipr_err_handler,
10805 * ipr_halt_done - Shutdown prepare completion
10806 * @ipr_cmd: ipr command struct
10811 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10813 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10817 * ipr_halt - Issue shutdown prepare to all adapters
10818 * @nb: Notifier block
10819 * @event: Notifier event
10820 * @buf: Notifier data (unused)
10823 * NOTIFY_OK on success / NOTIFY_DONE on failure
10825 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10827 struct ipr_cmnd *ipr_cmd;
10828 struct ipr_ioa_cfg *ioa_cfg;
10829 unsigned long flags = 0, driver_lock_flags;
10831 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10832 return NOTIFY_DONE;
10834 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10836 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10837 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10838 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10839 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10840 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10844 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10845 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10846 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10847 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10848 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10850 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10851 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10853 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10858 static struct notifier_block ipr_notifier = {
10863 * ipr_init - Module entry point
10866 * 0 on success / negative value on failure
10868 static int __init ipr_init(void)
10872 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10873 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10875 register_reboot_notifier(&ipr_notifier);
10876 rc = pci_register_driver(&ipr_driver);
10878 unregister_reboot_notifier(&ipr_notifier);
10886 * ipr_exit - Module unload
10888 * Module unload entry point.
10893 static void __exit ipr_exit(void)
10895 unregister_reboot_notifier(&ipr_notifier);
10896 pci_unregister_driver(&ipr_driver);
10899 module_init(ipr_init);
10900 module_exit(ipr_exit);