2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/slab.h>
63 #include <linux/vmalloc.h>
64 #include <linux/ioport.h>
65 #include <linux/delay.h>
66 #include <linux/pci.h>
67 #include <linux/wait.h>
68 #include <linux/spinlock.h>
69 #include <linux/sched.h>
70 #include <linux/interrupt.h>
71 #include <linux/blkdev.h>
72 #include <linux/firmware.h>
73 #include <linux/module.h>
74 #include <linux/moduleparam.h>
75 #include <linux/libata.h>
76 #include <linux/hdreg.h>
77 #include <linux/reboot.h>
78 #include <linux/stringify.h>
81 #include <asm/processor.h>
82 #include <scsi/scsi.h>
83 #include <scsi/scsi_host.h>
84 #include <scsi/scsi_tcq.h>
85 #include <scsi/scsi_eh.h>
86 #include <scsi/scsi_cmnd.h>
92 static LIST_HEAD(ipr_ioa_head);
93 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94 static unsigned int ipr_max_speed = 1;
95 static int ipr_testmode = 0;
96 static unsigned int ipr_fastfail = 0;
97 static unsigned int ipr_transop_timeout = 0;
98 static unsigned int ipr_debug = 0;
99 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
100 static unsigned int ipr_dual_ioa_raid = 1;
101 static unsigned int ipr_number_of_msix = 2;
102 static unsigned int ipr_fast_reboot;
103 static DEFINE_SPINLOCK(ipr_driver_lock);
105 /* This table describes the differences between DMA controller chips */
106 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
110 .cache_line_size = 0x20,
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
116 .clr_interrupt_mask_reg32 = 0x00230,
117 .sense_interrupt_mask_reg = 0x0022C,
118 .sense_interrupt_mask_reg32 = 0x0022C,
119 .clr_interrupt_reg = 0x00228,
120 .clr_interrupt_reg32 = 0x00228,
121 .sense_interrupt_reg = 0x00224,
122 .sense_interrupt_reg32 = 0x00224,
123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
125 .sense_uproc_interrupt_reg32 = 0x00214,
126 .set_uproc_interrupt_reg = 0x00214,
127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
132 { /* Snipe and Scamp */
135 .cache_line_size = 0x20,
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
141 .clr_interrupt_mask_reg32 = 0x0028C,
142 .sense_interrupt_mask_reg = 0x00288,
143 .sense_interrupt_mask_reg32 = 0x00288,
144 .clr_interrupt_reg = 0x00284,
145 .clr_interrupt_reg32 = 0x00284,
146 .sense_interrupt_reg = 0x00280,
147 .sense_interrupt_reg32 = 0x00280,
148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
150 .sense_uproc_interrupt_reg32 = 0x00290,
151 .set_uproc_interrupt_reg = 0x00290,
152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
160 .cache_line_size = 0x20,
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
166 .clr_interrupt_mask_reg32 = 0x0001C,
167 .sense_interrupt_mask_reg = 0x00010,
168 .sense_interrupt_mask_reg32 = 0x00014,
169 .clr_interrupt_reg = 0x00008,
170 .clr_interrupt_reg32 = 0x0000C,
171 .sense_interrupt_reg = 0x00000,
172 .sense_interrupt_reg32 = 0x00004,
173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
175 .sense_uproc_interrupt_reg32 = 0x00024,
176 .set_uproc_interrupt_reg = 0x00020,
177 .set_uproc_interrupt_reg32 = 0x00024,
178 .clr_uproc_interrupt_reg = 0x00028,
179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
181 .dump_addr_reg = 0x00064,
182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
188 static const struct ipr_chip_t ipr_chip[] = {
189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
200 static int ipr_max_bus_speeds[] = {
201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
204 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206 module_param_named(max_speed, ipr_max_speed, uint, 0);
207 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208 module_param_named(log_level, ipr_log_level, uint, 0);
209 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210 module_param_named(testmode, ipr_testmode, int, 0);
211 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
212 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
213 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
216 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
217 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
218 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
220 module_param_named(max_devs, ipr_max_devs, int, 0);
221 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
223 module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
224 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
225 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
227 MODULE_LICENSE("GPL");
228 MODULE_VERSION(IPR_DRIVER_VERSION);
230 /* A constant array of IOASCs/URCs/Error Messages */
232 struct ipr_error_table_t ipr_error_table[] = {
233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
234 "8155: An unknown error was received"},
236 "Soft underlength error"},
238 "Command to be cancelled not found"},
240 "Qualified success"},
241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
242 "FFFE: Soft device bus error recovered by the IOA"},
243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
244 "4101: Soft device bus fabric error"},
245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
260 "FFF9: Device sector reassign successful"},
261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFF7: Media error recovered by device rewrite procedures"},
263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
264 "7001: IOA sector reassignment successful"},
265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFF9: Soft media error. Sector reassignment recommended"},
267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF7: Media error recovered by IOA rewrite procedures"},
269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
270 "FF3D: Soft PCI bus error recovered by the IOA"},
271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
272 "FFF6: Device hardware error recovered by the IOA"},
273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
274 "FFF6: Device hardware error recovered by the device"},
275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
276 "FF3D: Soft IOA error recovered by the IOA"},
277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
278 "FFFA: Undefined device response recovered by the IOA"},
279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
280 "FFF6: Device bus error, message or command phase"},
281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
282 "FFFE: Task Management Function failed"},
283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
284 "FFF6: Failure prediction threshold exceeded"},
285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
286 "8009: Impending cache battery pack failure"},
288 "Logical Unit in process of becoming ready"},
290 "Initializing command required"},
292 "34FF: Disk device format in progress"},
294 "Logical unit not accessible, target port in unavailable state"},
295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
298 "Synchronization required"},
300 "IOA microcode download required"},
302 "Device bus connection is prohibited by host"},
304 "No ready, IOA shutdown"},
306 "Not ready, IOA has been shutdown"},
307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
308 "3020: Storage subsystem configuration error"},
310 "FFF5: Medium error, data unreadable, recommend reassign"},
312 "7000: Medium error, data unreadable, do not reassign"},
313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "FFF3: Disk media format bad"},
315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
316 "3002: Addressed device failed to respond to selection"},
317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
318 "3100: Device bus error"},
319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
320 "3109: IOA timed out a device command"},
322 "3120: SCSI bus is not operational"},
323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
324 "4100: Hard device bus fabric error"},
325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
340 "9000: IOA reserved area data check"},
341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
342 "9001: IOA reserved area invalid data pattern"},
343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
344 "9002: IOA reserved area LRC error"},
345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
348 "102E: Out of alternate sectors for disk storage"},
349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
350 "FFF4: Data transfer underlength error"},
351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
352 "FFF4: Data transfer overlength error"},
353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
354 "3400: Logical unit failure"},
355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
356 "FFF4: Device microcode is corrupt"},
357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
358 "8150: PCI bus error"},
360 "Unsupported device bus message received"},
361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "FFF4: Disk device problem"},
363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
364 "8150: Permanent IOA failure"},
365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
366 "3010: Disk device returned wrong response to IOA"},
367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
368 "8151: IOA microcode error"},
370 "Device bus status error"},
371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
372 "8157: IOA error requiring IOA reset to recover"},
374 "ATA device status error"},
376 "Message reject received from the device"},
377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
378 "8008: A permanent cache battery pack failure occurred"},
379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
380 "9090: Disk unit has been modified after the last known status"},
381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
382 "9081: IOA detected device error"},
383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
384 "9082: IOA detected device error"},
385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
386 "3110: Device bus error, message or command phase"},
387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
388 "3110: SAS Command / Task Management Function failed"},
389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
390 "9091: Incorrect hardware configuration change has been detected"},
391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
392 "9073: Invalid multi-adapter configuration"},
393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
394 "4010: Incorrect connection between cascaded expanders"},
395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
396 "4020: Connections exceed IOA design limits"},
397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
398 "4030: Incorrect multipath connection"},
399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
400 "4110: Unsupported enclosure function"},
401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFF4: Command to logical unit failed"},
406 "Illegal request, invalid request type or request packet"},
408 "Illegal request, invalid resource handle"},
410 "Illegal request, commands not allowed to this device"},
412 "Illegal request, command not allowed to a secondary adapter"},
414 "Illegal request, command not allowed to a non-optimized resource"},
416 "Illegal request, invalid field in parameter list"},
418 "Illegal request, parameter not supported"},
420 "Illegal request, parameter value invalid"},
422 "Illegal request, command sequence error"},
424 "Illegal request, dual adapter support not enabled"},
426 "Illegal request, another cable connector was physically disabled"},
428 "Illegal request, inconsistent group id/group count"},
429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9031: Array protection temporarily suspended, protection resuming"},
431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9040: Array protection temporarily suspended, protection resuming"},
433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
438 "3140: Device bus not ready to ready transition"},
439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
440 "FFFB: SCSI bus was reset"},
442 "FFFE: SCSI bus transition to single ended"},
444 "FFFE: SCSI bus transition to LVD"},
445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
446 "FFFB: SCSI bus was reset by another initiator"},
447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
448 "3029: A device replacement has occurred"},
449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
452 "9051: IOA cache data exists for a missing or failed device"},
453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
456 "9025: Disk unit is not supported at its physical location"},
457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
458 "3020: IOA detected a SCSI bus configuration error"},
459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
460 "3150: SCSI bus configuration error"},
461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9074: Asymmetric advanced function disk configuration"},
463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
464 "4040: Incomplete multipath connection between IOA and enclosure"},
465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
466 "4041: Incomplete multipath connection between enclosure and device"},
467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9075: Incomplete multipath connection between IOA and remote IOA"},
469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9076: Configuration error, missing remote IOA"},
471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
472 "4050: Enclosure does not support a required multipath function"},
473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9041: Array protection temporarily suspended"},
485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9042: Corrupt array parity detected on specified device"},
487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9030: Array no longer protected due to missing or failed disk unit"},
489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9071: Link operational transition"},
491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9072: Link not operational transition"},
493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9032: Array exposed but still protected"},
495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
498 "4061: Multipath redundancy level got better"},
499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
500 "4060: Multipath redundancy level got worse"},
501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
506 "Failure due to other device"},
507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
508 "9008: IOA does not support functions expected by devices"},
509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
510 "9010: Cache data associated with attached devices cannot be found"},
511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
512 "9011: Cache data belongs to devices other than those attached"},
513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
514 "9020: Array missing 2 or more devices with only 1 device present"},
515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
516 "9021: Array missing 2 or more devices with 2 or more devices present"},
517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
518 "9022: Exposed array is missing a required device"},
519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
520 "9023: Array member(s) not at required physical locations"},
521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
522 "9024: Array not functional due to present hardware configuration"},
523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
524 "9026: Array not functional due to present hardware configuration"},
525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
526 "9027: Array is missing a device and parity is out of sync"},
527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
528 "9028: Maximum number of arrays already exist"},
529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
530 "9050: Required cache data cannot be located for a disk unit"},
531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
532 "9052: Cache data exists for a device that has been modified"},
533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
534 "9054: IOA resources not available due to previous problems"},
535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
536 "9092: Disk unit requires initialization before use"},
537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
538 "9029: Incorrect hardware configuration change has been detected"},
539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
540 "9060: One or more disk pairs are missing from an array"},
541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
542 "9061: One or more disks are missing from an array"},
543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
544 "9062: One or more disks are missing from an array"},
545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
546 "9063: Maximum number of functional arrays has been exceeded"},
548 "Data protect, other volume set problem"},
550 "Aborted command, invalid descriptor"},
552 "Target operating conditions have changed, dual adapter takeover"},
554 "Aborted command, medium removal prevented"},
556 "Command terminated by host"},
558 "Aborted command, command terminated by host"}
561 static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
578 * Function Prototypes
580 static int ipr_reset_alert(struct ipr_cmnd *);
581 static void ipr_process_ccn(struct ipr_cmnd *);
582 static void ipr_process_error(struct ipr_cmnd *);
583 static void ipr_reset_ioa_job(struct ipr_cmnd *);
584 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
587 #ifdef CONFIG_SCSI_IPR_TRACE
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
592 * @add_data: additional data
597 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
602 unsigned int trace_index;
604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
619 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
629 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
646 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
657 ioarcb->data_transfer_length = 0;
658 ioarcb->read_data_transfer_length = 0;
659 ioarcb->ioadl_len = 0;
660 ioarcb->read_ioadl_len = 0;
662 if (ipr_cmd->ioa_cfg->sis64) {
663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
665 ioasa64->u.gata.status = 0;
667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
670 ioasa->u.gata.status = 0;
673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
675 ipr_cmd->scsi_cmd = NULL;
677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
688 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
694 ipr_cmd->eh_comp = NULL;
695 ipr_cmd->fast_done = fast_done;
696 init_timer(&ipr_cmd->timer);
700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
701 * @ioa_cfg: ioa config struct
704 * pointer to ipr command struct
707 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
709 struct ipr_cmnd *ipr_cmd = NULL;
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
726 * pointer to ipr command struct
729 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
748 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
751 volatile u32 int_reg;
754 /* Stop new interrupts */
755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
762 /* Set interrupt mask to stop all new interrupts */
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
768 /* Clear any pending interrupts */
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
780 * 0 on success / -EIO on failure
782 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
786 if (pcix_cmd_reg == 0)
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
804 * 0 on success / -EIO on failure
806 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
831 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
852 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
856 scsi_cmd->result |= (DID_ERROR << 16);
858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
859 scsi_cmd->scsi_done(scsi_cmd);
860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
869 * This function fails all outstanding ops.
874 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
876 struct ipr_cmnd *ipr_cmd, *temp;
877 struct ipr_hrr_queue *hrrq;
880 for_each_hrrq(hrrq, ioa_cfg) {
881 spin_lock(&hrrq->_lock);
882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
901 spin_unlock(&hrrq->_lock);
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
917 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
948 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
954 ipr_cmd->done = done;
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
960 add_timer(&ipr_cmd->timer);
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
964 ipr_send_command(ipr_cmd);
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
977 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
982 complete(&ipr_cmd->completion);
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
992 * This function initializes an ioadl in the case where there is only a single
998 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1004 ipr_cmd->dma_use_sg = 1;
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1039 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1053 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1057 if (ioa_cfg->hrrq_num == 1)
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1070 * @hostrcb: hostrcb struct
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1079 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1106 ipr_cmd->done = ipr_process_error;
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1110 ipr_send_command(ipr_cmd);
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1124 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1136 res->ata_class = ATA_DEV_UNKNOWN;
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
1144 * @cfgtew: config table entry wrapper struct
1149 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1157 res->needs_sync_complete = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
1162 res->reset_occurred = 0;
1164 res->sata_port = NULL;
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
1171 res->type = cfgtew->u.cfgte64->res_type;
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
1179 res->lun = scsilun_to_int(&res->dev_lun);
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1185 res->target = gscsi_res->target;
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1227 ipr_update_ata_class(res, proto);
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1236 * 1 if the devices are the same / 0 otherwise
1238 static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1245 sizeof(cfgtew->u.cfgte64->lun))) {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1259 * __ipr_format_res_path - Format the resource path for printing.
1260 * @res_path: resource path
1262 * @len: length of buffer provided
1267 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1285 * @len: length of buffer provided
1290 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1309 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1316 if (res->ioa_cfg->sis64) {
1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1319 res->type = cfgtew->u.cfgte64->res_type;
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1358 ipr_update_ata_class(res, proto);
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1370 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1375 if (!ioa_cfg->sis64)
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1386 clear_bit(res->target, ioa_cfg->target_ids);
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1400 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1401 struct ipr_hostrcb *hostrcb)
1403 struct ipr_resource_entry *res = NULL;
1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1418 if (res->res_handle == cc_res_handle) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1435 list_del(&res->queue);
1436 ipr_init_res_entry(res, &cfgtew);
1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1440 ipr_update_res_entry(res, &cfgtew);
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1444 res->del_from_ml = 1;
1445 res->res_handle = IPR_INVALID_RES_HANDLE;
1446 schedule_work(&ioa_cfg->work_q);
1448 ipr_clear_res_target(res);
1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1451 } else if (!res->sdev || res->del_from_ml) {
1453 schedule_work(&ioa_cfg->work_q);
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1469 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1475 list_del(&hostrcb->queue);
1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1499 * new length of string
1501 static int strip_and_pad_whitespace(int i, char *buf)
1503 while (i && buf[i] == ' ')
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1519 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1538 * ipr_log_vpd - Log the passed VPD to the error log.
1539 * @vpd: vendor/product id/sn struct
1544 static void ipr_log_vpd(struct ipr_vpd *vpd)
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1569 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1584 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1599 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1602 struct ipr_hostrcb_type_12_error *error;
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1635 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
1643 ipr_log_vpd(&error->ioa_vpd);
1644 ipr_err("Adapter Card Information:\n");
1645 ipr_log_vpd(&error->cfc_vpd);
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1650 ipr_err("Adapter Card Information:\n");
1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1667 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1680 dev_entry = error->dev;
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1707 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1721 dev_entry = error->dev;
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1726 ipr_err("Device %d : %s", i + 1,
1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
1729 ipr_log_ext_vpd(&dev_entry->vpd);
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1750 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1763 dev_entry = error->dev;
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1769 ipr_log_vpd(&dev_entry->vpd);
1771 ipr_err("-----New Device Information-----\n");
1772 ipr_log_vpd(&dev_entry->new_vpd);
1774 ipr_err("Cache Directory Card Information:\n");
1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1777 ipr_err("Adapter Card Information:\n");
1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1797 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1820 ARRAY_SIZE(error->array_member));
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1829 ipr_err("Array Member %d:\n", i);
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1848 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1869 array_entry = error->array_member;
1871 for (i = 0; i < 18; i++) {
1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1876 ipr_err("Exposed Array Member %d:\n", i);
1878 ipr_err("Array Member %d:\n", i);
1880 ipr_log_vpd(&array_entry->vpd);
1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1889 array_entry = error->array_member2;
1896 * ipr_log_hex_data - Log additional hex IOA error data.
1897 * @ioa_cfg: ioa config struct
1898 * @data: IOA error data
1904 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1914 for (i = 0; i < len / 4; i += 4) {
1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1931 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1934 struct ipr_hostrcb_type_17_error *error;
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1942 strim(error->failure_reason);
1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1947 ipr_log_hex_data(ioa_cfg, error->data,
1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1961 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1964 struct ipr_hostrcb_type_07_error *error;
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1968 strim(error->failure_reason);
1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1973 ipr_log_hex_data(ioa_cfg, error->data,
1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1979 static const struct {
1982 } path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1988 static const struct {
1991 } path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2006 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2055 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
2074 ipr_format_res_path(hostrcb->ioa_cfg,
2076 buffer, sizeof(buffer)));
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
2086 static const struct {
2089 } path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2096 static const struct {
2099 } path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2108 static const char *link_rate[] = {
2111 "phy reset problem",
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2135 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2159 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2202 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2248 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2285 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
2305 array_entry = error->array_member;
2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2317 ipr_err("Array Member %d:\n", i);
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
2321 ipr_err("Current Location: %s\n",
2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
2324 ipr_err("Expected Location: %s\n",
2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2341 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2379 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2383 be32_to_cpu(hostrcb->hcam.length));
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2394 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2431 * index into the ipr_error_table
2433 static u32 ipr_get_error(u32 ioasc)
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2449 * This function logs an adapter error to the system.
2454 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2459 struct ipr_hostrcb_type_21_error *error;
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
2476 hostrcb->hcam.u.error.fd_res_addr.bus);
2479 error_index = ipr_get_error(ioasc);
2481 if (!ipr_error_table[error_index].log_hcam)
2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2503 switch (hostrcb->hcam.overlay_id) {
2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2546 case IPR_HOST_RCB_OVERLAY_ID_1:
2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2549 ipr_log_generic_error(ioa_cfg, hostrcb);
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2565 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2577 list_del(&hostrcb->queue);
2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2597 * This function blocks host requests and initiates an
2603 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2629 * This function blocks host requests and initiates an
2635 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2665 * pointer to SES table entry / NULL on failure
2667 static const struct ipr_ses_table_entry *
2668 ipr_find_ses_entry(struct ipr_resource_entry *res)
2671 struct ipr_std_inq_vpids *vpids;
2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
2686 if (matches == IPR_PROD_ID_LEN)
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2697 * @bus_width: bus width
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2705 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2716 if (bus != res->bus)
2719 if (!(ste = ipr_find_ses_entry(res)))
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2725 return max_xfer_rate;
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2736 * 0 on success / other on failure
2738 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2740 volatile u32 pcii_reg;
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2771 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2773 __be32 *dest, u32 length_in_words)
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2794 * 0 on success / -EIO on failure
2796 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2798 __be32 *dest, u32 length_in_words)
2800 volatile u32 temp_pcii_reg;
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2877 #ifdef CONFIG_SCSI_IPR_DUMP
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2887 * 0 on success / other on failure
2889 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2892 int bytes_copied = 0;
2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2903 while (bytes_copied < length &&
2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2911 return bytes_copied;
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2945 return bytes_copied;
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2955 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2971 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2997 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3018 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3039 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3049 driver_dump->hdr.num_entries++;
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3060 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3068 struct ipr_sdt *sdt;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state != READ_DUMP) {
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3139 bytes_to_copy / sizeof(__be32));
3141 /* Smart Dump table is ready to use and the first entry is valid */
3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3167 for (i = 0; i < num_entries; i++) {
3168 if (ioa_dump->hdr.len > max_dump_size) {
3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3187 if (bytes_to_copy > max_dump_size) {
3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3196 ioa_dump->hdr.len += bytes_copied;
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3216 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3226 static void ipr_release_dump(struct kref *kref)
3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3242 vfree(dump->ioa_dump.ioa_data);
3248 * ipr_worker_thread - Worker thread
3249 * @work: ioa config struct
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3258 static void ipr_worker_thread(struct work_struct *work)
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
3266 u8 bus, target, lun;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3272 if (ioa_cfg->sdt_state == READ_DUMP) {
3273 dump = ioa_cfg->dump;
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3302 if (!scsi_device_get(sdev)) {
3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3306 res->del_from_ml = 0;
3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3320 target = res->target;
3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3330 ioa_cfg->scan_done = 1;
3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3336 #ifdef CONFIG_SCSI_IPR_TRACE
3338 * ipr_read_trace - Dump the adapter trace
3339 * @filp: open sysfs file
3340 * @kobj: kobject struct
3341 * @bin_attr: bin_attribute struct
3344 * @count: buffer size
3347 * number of bytes printed to buffer
3349 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3367 static struct bin_attribute ipr_trace_attr = {
3373 .read = ipr_read_trace,
3378 * ipr_show_fw_version - Show the firmware version
3379 * @dev: class device struct
3383 * number of bytes printed to buffer
3385 static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
3388 struct Scsi_Host *shost = class_to_shost(dev);
3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3403 static struct device_attribute ipr_fw_version_attr = {
3405 .name = "fw_version",
3408 .show = ipr_show_fw_version,
3412 * ipr_show_log_level - Show the adapter's error logging level
3413 * @dev: class device struct
3417 * number of bytes printed to buffer
3419 static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
3422 struct Scsi_Host *shost = class_to_shost(dev);
3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3434 * ipr_store_log_level - Change the adapter's error logging level
3435 * @dev: class device struct
3439 * number of bytes printed to buffer
3441 static ssize_t ipr_store_log_level(struct device *dev,
3442 struct device_attribute *attr,
3443 const char *buf, size_t count)
3445 struct Scsi_Host *shost = class_to_shost(dev);
3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3455 static struct device_attribute ipr_log_level_attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3465 * ipr_store_diagnostics - IOA Diagnostics interface
3466 * @dev: device struct
3468 * @count: buffer size
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3474 * count on success / other on failure
3476 static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
3478 const char *buf, size_t count)
3480 struct Scsi_Host *shost = class_to_shost(dev);
3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3485 if (!capable(CAP_SYS_ADMIN))
3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3489 while (ioa_cfg->in_reset_reload) {
3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3502 /* Wait for a second for any errors to be logged */
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3517 static struct device_attribute ipr_diagnostics_attr = {
3519 .name = "run_diagnostics",
3522 .store = ipr_store_diagnostics
3526 * ipr_show_adapter_state - Show the adapter's state
3527 * @class_dev: device struct
3531 * number of bytes printed to buffer
3533 static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
3536 struct Scsi_Host *shost = class_to_shost(dev);
3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3551 * ipr_store_adapter_state - Change adapter state
3552 * @dev: device struct
3554 * @count: buffer size
3556 * This function will change the adapter's state.
3559 * count on success / other on failure
3561 static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
3563 const char *buf, size_t count)
3565 struct Scsi_Host *shost = class_to_shost(dev);
3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
3568 int result = count, i;
3570 if (!capable(CAP_SYS_ADMIN))
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3592 static struct device_attribute ipr_ioa_state_attr = {
3594 .name = "online_state",
3595 .mode = S_IRUGO | S_IWUSR,
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3602 * ipr_store_reset_adapter - Reset the adapter
3603 * @dev: device struct
3605 * @count: buffer size
3607 * This function will reset the adapter.
3610 * count on success / other on failure
3612 static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
3614 const char *buf, size_t count)
3616 struct Scsi_Host *shost = class_to_shost(dev);
3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3621 if (!capable(CAP_SYS_ADMIN))
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3633 static struct device_attribute ipr_ioa_reset_attr = {
3635 .name = "reset_host",
3638 .store = ipr_store_reset_adapter
3641 static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3648 * number of bytes printed to buffer
3650 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3671 * number of bytes printed to buffer
3673 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3683 if (!ioa_cfg->sis64) {
3684 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3690 if (user_iopoll_weight > 256) {
3691 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3696 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3702 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3709 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3710 ioa_cfg->iopoll_weight, ipr_iopoll);
3711 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3714 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3719 static struct device_attribute ipr_iopoll_weight_attr = {
3721 .name = "iopoll_weight",
3722 .mode = S_IRUGO | S_IWUSR,
3724 .show = ipr_show_iopoll_weight,
3725 .store = ipr_store_iopoll_weight
3729 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3730 * @buf_len: buffer length
3732 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3733 * list to use for microcode download
3736 * pointer to sglist / NULL on failure
3738 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3740 int sg_size, order, bsize_elem, num_elem, i, j;
3741 struct ipr_sglist *sglist;
3742 struct scatterlist *scatterlist;
3745 /* Get the minimum size per scatter/gather element */
3746 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3748 /* Get the actual size per element */
3749 order = get_order(sg_size);
3751 /* Determine the actual number of bytes per element */
3752 bsize_elem = PAGE_SIZE * (1 << order);
3754 /* Determine the actual number of sg entries needed */
3755 if (buf_len % bsize_elem)
3756 num_elem = (buf_len / bsize_elem) + 1;
3758 num_elem = buf_len / bsize_elem;
3760 /* Allocate a scatter/gather list for the DMA */
3761 sglist = kzalloc(sizeof(struct ipr_sglist) +
3762 (sizeof(struct scatterlist) * (num_elem - 1)),
3765 if (sglist == NULL) {
3770 scatterlist = sglist->scatterlist;
3771 sg_init_table(scatterlist, num_elem);
3773 sglist->order = order;
3774 sglist->num_sg = num_elem;
3776 /* Allocate a bunch of sg elements */
3777 for (i = 0; i < num_elem; i++) {
3778 page = alloc_pages(GFP_KERNEL, order);
3782 /* Free up what we already allocated */
3783 for (j = i - 1; j >= 0; j--)
3784 __free_pages(sg_page(&scatterlist[j]), order);
3789 sg_set_page(&scatterlist[i], page, 0, 0);
3796 * ipr_free_ucode_buffer - Frees a microcode download buffer
3797 * @p_dnld: scatter/gather list pointer
3799 * Free a DMA'able ucode download buffer previously allocated with
3800 * ipr_alloc_ucode_buffer
3805 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3809 for (i = 0; i < sglist->num_sg; i++)
3810 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3816 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3817 * @sglist: scatter/gather list pointer
3818 * @buffer: buffer pointer
3819 * @len: buffer length
3821 * Copy a microcode image from a user buffer into a buffer allocated by
3822 * ipr_alloc_ucode_buffer
3825 * 0 on success / other on failure
3827 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3828 u8 *buffer, u32 len)
3830 int bsize_elem, i, result = 0;
3831 struct scatterlist *scatterlist;
3834 /* Determine the actual number of bytes per element */
3835 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3837 scatterlist = sglist->scatterlist;
3839 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3840 struct page *page = sg_page(&scatterlist[i]);
3843 memcpy(kaddr, buffer, bsize_elem);
3846 scatterlist[i].length = bsize_elem;
3854 if (len % bsize_elem) {
3855 struct page *page = sg_page(&scatterlist[i]);
3858 memcpy(kaddr, buffer, len % bsize_elem);
3861 scatterlist[i].length = len % bsize_elem;
3864 sglist->buffer_len = len;
3869 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3870 * @ipr_cmd: ipr command struct
3871 * @sglist: scatter/gather list
3873 * Builds a microcode download IOA data list (IOADL).
3876 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3877 struct ipr_sglist *sglist)
3879 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3880 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3881 struct scatterlist *scatterlist = sglist->scatterlist;
3884 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3886 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3889 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3890 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3891 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3892 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3893 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3896 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3900 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3901 * @ipr_cmd: ipr command struct
3902 * @sglist: scatter/gather list
3904 * Builds a microcode download IOA data list (IOADL).
3907 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3908 struct ipr_sglist *sglist)
3910 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3911 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3912 struct scatterlist *scatterlist = sglist->scatterlist;
3915 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3917 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3920 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3922 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3923 ioadl[i].flags_and_data_len =
3924 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3926 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3929 ioadl[i-1].flags_and_data_len |=
3930 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3934 * ipr_update_ioa_ucode - Update IOA's microcode
3935 * @ioa_cfg: ioa config struct
3936 * @sglist: scatter/gather list
3938 * Initiate an adapter reset to update the IOA's microcode
3941 * 0 on success / -EIO on failure
3943 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3944 struct ipr_sglist *sglist)
3946 unsigned long lock_flags;
3948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3949 while (ioa_cfg->in_reset_reload) {
3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3955 if (ioa_cfg->ucode_sglist) {
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 dev_err(&ioa_cfg->pdev->dev,
3958 "Microcode download already in progress\n");
3962 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3963 sglist->scatterlist, sglist->num_sg,
3966 if (!sglist->num_dma_sg) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 dev_err(&ioa_cfg->pdev->dev,
3969 "Failed to map microcode download buffer!\n");
3973 ioa_cfg->ucode_sglist = sglist;
3974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3976 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 ioa_cfg->ucode_sglist = NULL;
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3985 * ipr_store_update_fw - Update the firmware on the adapter
3986 * @class_dev: device struct
3988 * @count: buffer size
3990 * This function will update the firmware on the adapter.
3993 * count on success / other on failure
3995 static ssize_t ipr_store_update_fw(struct device *dev,
3996 struct device_attribute *attr,
3997 const char *buf, size_t count)
3999 struct Scsi_Host *shost = class_to_shost(dev);
4000 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 struct ipr_ucode_image_header *image_hdr;
4002 const struct firmware *fw_entry;
4003 struct ipr_sglist *sglist;
4006 int len, result, dnld_size;
4008 if (!capable(CAP_SYS_ADMIN))
4011 len = snprintf(fname, 99, "%s", buf);
4012 fname[len-1] = '\0';
4014 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4015 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4019 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4021 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4022 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4023 sglist = ipr_alloc_ucode_buffer(dnld_size);
4026 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4027 release_firmware(fw_entry);
4031 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4034 dev_err(&ioa_cfg->pdev->dev,
4035 "Microcode buffer copy to DMA buffer failed\n");
4039 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4041 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4046 ipr_free_ucode_buffer(sglist);
4047 release_firmware(fw_entry);
4051 static struct device_attribute ipr_update_fw_attr = {
4053 .name = "update_fw",
4056 .store = ipr_store_update_fw
4060 * ipr_show_fw_type - Show the adapter's firmware type.
4061 * @dev: class device struct
4065 * number of bytes printed to buffer
4067 static ssize_t ipr_show_fw_type(struct device *dev,
4068 struct device_attribute *attr, char *buf)
4070 struct Scsi_Host *shost = class_to_shost(dev);
4071 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4072 unsigned long lock_flags = 0;
4075 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4076 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4081 static struct device_attribute ipr_ioa_fw_type_attr = {
4086 .show = ipr_show_fw_type
4089 static struct device_attribute *ipr_ioa_attrs[] = {
4090 &ipr_fw_version_attr,
4091 &ipr_log_level_attr,
4092 &ipr_diagnostics_attr,
4093 &ipr_ioa_state_attr,
4094 &ipr_ioa_reset_attr,
4095 &ipr_update_fw_attr,
4096 &ipr_ioa_fw_type_attr,
4097 &ipr_iopoll_weight_attr,
4101 #ifdef CONFIG_SCSI_IPR_DUMP
4103 * ipr_read_dump - Dump the adapter
4104 * @filp: open sysfs file
4105 * @kobj: kobject struct
4106 * @bin_attr: bin_attribute struct
4109 * @count: buffer size
4112 * number of bytes printed to buffer
4114 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4115 struct bin_attribute *bin_attr,
4116 char *buf, loff_t off, size_t count)
4118 struct device *cdev = container_of(kobj, struct device, kobj);
4119 struct Scsi_Host *shost = class_to_shost(cdev);
4120 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4121 struct ipr_dump *dump;
4122 unsigned long lock_flags = 0;
4127 if (!capable(CAP_SYS_ADMIN))
4130 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4131 dump = ioa_cfg->dump;
4133 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4137 kref_get(&dump->kref);
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4140 if (off > dump->driver_dump.hdr.len) {
4141 kref_put(&dump->kref, ipr_release_dump);
4145 if (off + count > dump->driver_dump.hdr.len) {
4146 count = dump->driver_dump.hdr.len - off;
4150 if (count && off < sizeof(dump->driver_dump)) {
4151 if (off + count > sizeof(dump->driver_dump))
4152 len = sizeof(dump->driver_dump) - off;
4155 src = (u8 *)&dump->driver_dump + off;
4156 memcpy(buf, src, len);
4162 off -= sizeof(dump->driver_dump);
4165 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4166 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4167 sizeof(struct ipr_sdt_entry));
4169 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4170 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4172 if (count && off < sdt_end) {
4173 if (off + count > sdt_end)
4174 len = sdt_end - off;
4177 src = (u8 *)&dump->ioa_dump + off;
4178 memcpy(buf, src, len);
4187 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4188 len = PAGE_ALIGN(off) - off;
4191 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4192 src += off & ~PAGE_MASK;
4193 memcpy(buf, src, len);
4199 kref_put(&dump->kref, ipr_release_dump);
4204 * ipr_alloc_dump - Prepare for adapter dump
4205 * @ioa_cfg: ioa config struct
4208 * 0 on success / other on failure
4210 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4212 struct ipr_dump *dump;
4214 unsigned long lock_flags = 0;
4216 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4219 ipr_err("Dump memory allocation failed\n");
4224 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4226 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4229 ipr_err("Dump memory allocation failed\n");
4234 dump->ioa_dump.ioa_data = ioa_data;
4236 kref_init(&dump->kref);
4237 dump->ioa_cfg = ioa_cfg;
4239 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4241 if (INACTIVE != ioa_cfg->sdt_state) {
4242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4243 vfree(dump->ioa_dump.ioa_data);
4248 ioa_cfg->dump = dump;
4249 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4250 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4251 ioa_cfg->dump_taken = 1;
4252 schedule_work(&ioa_cfg->work_q);
4254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4260 * ipr_free_dump - Free adapter dump memory
4261 * @ioa_cfg: ioa config struct
4264 * 0 on success / other on failure
4266 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4268 struct ipr_dump *dump;
4269 unsigned long lock_flags = 0;
4273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4274 dump = ioa_cfg->dump;
4276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280 ioa_cfg->dump = NULL;
4281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4283 kref_put(&dump->kref, ipr_release_dump);
4290 * ipr_write_dump - Setup dump state of adapter
4291 * @filp: open sysfs file
4292 * @kobj: kobject struct
4293 * @bin_attr: bin_attribute struct
4296 * @count: buffer size
4299 * number of bytes printed to buffer
4301 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4302 struct bin_attribute *bin_attr,
4303 char *buf, loff_t off, size_t count)
4305 struct device *cdev = container_of(kobj, struct device, kobj);
4306 struct Scsi_Host *shost = class_to_shost(cdev);
4307 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4310 if (!capable(CAP_SYS_ADMIN))
4314 rc = ipr_alloc_dump(ioa_cfg);
4315 else if (buf[0] == '0')
4316 rc = ipr_free_dump(ioa_cfg);
4326 static struct bin_attribute ipr_dump_attr = {
4329 .mode = S_IRUSR | S_IWUSR,
4332 .read = ipr_read_dump,
4333 .write = ipr_write_dump
4336 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4340 * ipr_change_queue_depth - Change the device's queue depth
4341 * @sdev: scsi device struct
4342 * @qdepth: depth to set
4343 * @reason: calling context
4348 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4350 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4351 struct ipr_resource_entry *res;
4352 unsigned long lock_flags = 0;
4354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4355 res = (struct ipr_resource_entry *)sdev->hostdata;
4357 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4358 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4361 scsi_change_queue_depth(sdev, qdepth);
4362 return sdev->queue_depth;
4366 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4367 * @dev: device struct
4368 * @attr: device attribute structure
4372 * number of bytes printed to buffer
4374 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4376 struct scsi_device *sdev = to_scsi_device(dev);
4377 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4378 struct ipr_resource_entry *res;
4379 unsigned long lock_flags = 0;
4380 ssize_t len = -ENXIO;
4382 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4383 res = (struct ipr_resource_entry *)sdev->hostdata;
4385 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4390 static struct device_attribute ipr_adapter_handle_attr = {
4392 .name = "adapter_handle",
4395 .show = ipr_show_adapter_handle
4399 * ipr_show_resource_path - Show the resource path or the resource address for
4401 * @dev: device struct
4402 * @attr: device attribute structure
4406 * number of bytes printed to buffer
4408 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4410 struct scsi_device *sdev = to_scsi_device(dev);
4411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4412 struct ipr_resource_entry *res;
4413 unsigned long lock_flags = 0;
4414 ssize_t len = -ENXIO;
4415 char buffer[IPR_MAX_RES_PATH_LENGTH];
4417 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4418 res = (struct ipr_resource_entry *)sdev->hostdata;
4419 if (res && ioa_cfg->sis64)
4420 len = snprintf(buf, PAGE_SIZE, "%s\n",
4421 __ipr_format_res_path(res->res_path, buffer,
4424 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4425 res->bus, res->target, res->lun);
4427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4431 static struct device_attribute ipr_resource_path_attr = {
4433 .name = "resource_path",
4436 .show = ipr_show_resource_path
4440 * ipr_show_device_id - Show the device_id for this device.
4441 * @dev: device struct
4442 * @attr: device attribute structure
4446 * number of bytes printed to buffer
4448 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4450 struct scsi_device *sdev = to_scsi_device(dev);
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 unsigned long lock_flags = 0;
4454 ssize_t len = -ENXIO;
4456 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4457 res = (struct ipr_resource_entry *)sdev->hostdata;
4458 if (res && ioa_cfg->sis64)
4459 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4461 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4467 static struct device_attribute ipr_device_id_attr = {
4469 .name = "device_id",
4472 .show = ipr_show_device_id
4476 * ipr_show_resource_type - Show the resource type for this device.
4477 * @dev: device struct
4478 * @attr: device attribute structure
4482 * number of bytes printed to buffer
4484 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4486 struct scsi_device *sdev = to_scsi_device(dev);
4487 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4488 struct ipr_resource_entry *res;
4489 unsigned long lock_flags = 0;
4490 ssize_t len = -ENXIO;
4492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4493 res = (struct ipr_resource_entry *)sdev->hostdata;
4496 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4498 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4502 static struct device_attribute ipr_resource_type_attr = {
4504 .name = "resource_type",
4507 .show = ipr_show_resource_type
4511 * ipr_show_raw_mode - Show the adapter's raw mode
4512 * @dev: class device struct
4516 * number of bytes printed to buffer
4518 static ssize_t ipr_show_raw_mode(struct device *dev,
4519 struct device_attribute *attr, char *buf)
4521 struct scsi_device *sdev = to_scsi_device(dev);
4522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4523 struct ipr_resource_entry *res;
4524 unsigned long lock_flags = 0;
4527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4528 res = (struct ipr_resource_entry *)sdev->hostdata;
4530 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4538 * ipr_store_raw_mode - Change the adapter's raw mode
4539 * @dev: class device struct
4543 * number of bytes printed to buffer
4545 static ssize_t ipr_store_raw_mode(struct device *dev,
4546 struct device_attribute *attr,
4547 const char *buf, size_t count)
4549 struct scsi_device *sdev = to_scsi_device(dev);
4550 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4551 struct ipr_resource_entry *res;
4552 unsigned long lock_flags = 0;
4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4556 res = (struct ipr_resource_entry *)sdev->hostdata;
4558 if (ipr_is_af_dasd_device(res)) {
4559 res->raw_mode = simple_strtoul(buf, NULL, 10);
4562 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4563 res->raw_mode ? "enabled" : "disabled");
4568 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4572 static struct device_attribute ipr_raw_mode_attr = {
4575 .mode = S_IRUGO | S_IWUSR,
4577 .show = ipr_show_raw_mode,
4578 .store = ipr_store_raw_mode
4581 static struct device_attribute *ipr_dev_attrs[] = {
4582 &ipr_adapter_handle_attr,
4583 &ipr_resource_path_attr,
4584 &ipr_device_id_attr,
4585 &ipr_resource_type_attr,
4591 * ipr_biosparam - Return the HSC mapping
4592 * @sdev: scsi device struct
4593 * @block_device: block device pointer
4594 * @capacity: capacity of the device
4595 * @parm: Array containing returned HSC values.
4597 * This function generates the HSC parms that fdisk uses.
4598 * We want to make sure we return something that places partitions
4599 * on 4k boundaries for best performance with the IOA.
4604 static int ipr_biosparam(struct scsi_device *sdev,
4605 struct block_device *block_device,
4606 sector_t capacity, int *parm)
4614 cylinders = capacity;
4615 sector_div(cylinders, (128 * 32));
4620 parm[2] = cylinders;
4626 * ipr_find_starget - Find target based on bus/target.
4627 * @starget: scsi target struct
4630 * resource entry pointer if found / NULL if not found
4632 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4634 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4635 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4636 struct ipr_resource_entry *res;
4638 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4639 if ((res->bus == starget->channel) &&
4640 (res->target == starget->id)) {
4648 static struct ata_port_info sata_port_info;
4651 * ipr_target_alloc - Prepare for commands to a SCSI target
4652 * @starget: scsi target struct
4654 * If the device is a SATA device, this function allocates an
4655 * ATA port with libata, else it does nothing.
4658 * 0 on success / non-0 on failure
4660 static int ipr_target_alloc(struct scsi_target *starget)
4662 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4664 struct ipr_sata_port *sata_port;
4665 struct ata_port *ap;
4666 struct ipr_resource_entry *res;
4667 unsigned long lock_flags;
4669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4670 res = ipr_find_starget(starget);
4671 starget->hostdata = NULL;
4673 if (res && ipr_is_gata(res)) {
4674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4675 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4679 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 sata_port->ioa_cfg = ioa_cfg;
4684 sata_port->res = res;
4686 res->sata_port = sata_port;
4687 ap->private_data = sata_port;
4688 starget->hostdata = sata_port;
4694 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4700 * ipr_target_destroy - Destroy a SCSI target
4701 * @starget: scsi target struct
4703 * If the device was a SATA device, this function frees the libata
4704 * ATA port, else it does nothing.
4707 static void ipr_target_destroy(struct scsi_target *starget)
4709 struct ipr_sata_port *sata_port = starget->hostdata;
4710 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4711 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4713 if (ioa_cfg->sis64) {
4714 if (!ipr_find_starget(starget)) {
4715 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4716 clear_bit(starget->id, ioa_cfg->array_ids);
4717 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4718 clear_bit(starget->id, ioa_cfg->vset_ids);
4719 else if (starget->channel == 0)
4720 clear_bit(starget->id, ioa_cfg->target_ids);
4725 starget->hostdata = NULL;
4726 ata_sas_port_destroy(sata_port->ap);
4732 * ipr_find_sdev - Find device based on bus/target/lun.
4733 * @sdev: scsi device struct
4736 * resource entry pointer if found / NULL if not found
4738 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4741 struct ipr_resource_entry *res;
4743 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4744 if ((res->bus == sdev->channel) &&
4745 (res->target == sdev->id) &&
4746 (res->lun == sdev->lun))
4754 * ipr_slave_destroy - Unconfigure a SCSI device
4755 * @sdev: scsi device struct
4760 static void ipr_slave_destroy(struct scsi_device *sdev)
4762 struct ipr_resource_entry *res;
4763 struct ipr_ioa_cfg *ioa_cfg;
4764 unsigned long lock_flags = 0;
4766 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4768 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4769 res = (struct ipr_resource_entry *) sdev->hostdata;
4772 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4773 sdev->hostdata = NULL;
4775 res->sata_port = NULL;
4777 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4781 * ipr_slave_configure - Configure a SCSI device
4782 * @sdev: scsi device struct
4784 * This function configures the specified scsi device.
4789 static int ipr_slave_configure(struct scsi_device *sdev)
4791 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4792 struct ipr_resource_entry *res;
4793 struct ata_port *ap = NULL;
4794 unsigned long lock_flags = 0;
4795 char buffer[IPR_MAX_RES_PATH_LENGTH];
4797 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4798 res = sdev->hostdata;
4800 if (ipr_is_af_dasd_device(res))
4801 sdev->type = TYPE_RAID;
4802 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4803 sdev->scsi_level = 4;
4804 sdev->no_uld_attach = 1;
4806 if (ipr_is_vset_device(res)) {
4807 sdev->scsi_level = SCSI_SPC_3;
4808 blk_queue_rq_timeout(sdev->request_queue,
4809 IPR_VSET_RW_TIMEOUT);
4810 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4812 if (ipr_is_gata(res) && res->sata_port)
4813 ap = res->sata_port->ap;
4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4817 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4818 ata_sas_slave_configure(sdev, ap);
4822 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4823 ipr_format_res_path(ioa_cfg,
4824 res->res_path, buffer, sizeof(buffer)));
4827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4832 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4833 * @sdev: scsi device struct
4835 * This function initializes an ATA port so that future commands
4836 * sent through queuecommand will work.
4841 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4843 struct ipr_sata_port *sata_port = NULL;
4847 if (sdev->sdev_target)
4848 sata_port = sdev->sdev_target->hostdata;
4850 rc = ata_sas_port_init(sata_port->ap);
4852 rc = ata_sas_sync_probe(sata_port->ap);
4856 ipr_slave_destroy(sdev);
4863 * ipr_slave_alloc - Prepare for commands to a device.
4864 * @sdev: scsi device struct
4866 * This function saves a pointer to the resource entry
4867 * in the scsi device struct if the device exists. We
4868 * can then use this pointer in ipr_queuecommand when
4869 * handling new commands.
4872 * 0 on success / -ENXIO if device does not exist
4874 static int ipr_slave_alloc(struct scsi_device *sdev)
4876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4877 struct ipr_resource_entry *res;
4878 unsigned long lock_flags;
4881 sdev->hostdata = NULL;
4883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4885 res = ipr_find_sdev(sdev);
4890 sdev->hostdata = res;
4891 if (!ipr_is_naca_model(res))
4892 res->needs_sync_complete = 1;
4894 if (ipr_is_gata(res)) {
4895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4896 return ipr_ata_slave_alloc(sdev);
4900 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4906 * ipr_match_lun - Match function for specified LUN
4907 * @ipr_cmd: ipr command struct
4908 * @device: device to match (sdev)
4911 * 1 if command matches sdev / 0 if command does not match sdev
4913 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4915 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4921 * ipr_wait_for_ops - Wait for matching commands to complete
4922 * @ipr_cmd: ipr command struct
4923 * @device: device to match (sdev)
4924 * @match: match function to use
4929 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4930 int (*match)(struct ipr_cmnd *, void *))
4932 struct ipr_cmnd *ipr_cmd;
4934 unsigned long flags;
4935 struct ipr_hrr_queue *hrrq;
4936 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4937 DECLARE_COMPLETION_ONSTACK(comp);
4943 for_each_hrrq(hrrq, ioa_cfg) {
4944 spin_lock_irqsave(hrrq->lock, flags);
4945 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4946 if (match(ipr_cmd, device)) {
4947 ipr_cmd->eh_comp = ∁
4951 spin_unlock_irqrestore(hrrq->lock, flags);
4955 timeout = wait_for_completion_timeout(&comp, timeout);
4960 for_each_hrrq(hrrq, ioa_cfg) {
4961 spin_lock_irqsave(hrrq->lock, flags);
4962 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4963 if (match(ipr_cmd, device)) {
4964 ipr_cmd->eh_comp = NULL;
4968 spin_unlock_irqrestore(hrrq->lock, flags);
4972 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4974 return wait ? FAILED : SUCCESS;
4983 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
4985 struct ipr_ioa_cfg *ioa_cfg;
4986 unsigned long lock_flags = 0;
4990 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4991 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4993 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4994 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4995 dev_err(&ioa_cfg->pdev->dev,
4996 "Adapter being reset as a result of error recovery.\n");
4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4999 ioa_cfg->sdt_state = GET_DUMP;
5002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5003 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5004 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5006 /* If we got hit with a host reset while we were already resetting
5007 the adapter for some reason, and the reset failed. */
5008 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5019 * ipr_device_reset - Reset the device
5020 * @ioa_cfg: ioa config struct
5021 * @res: resource entry struct
5023 * This function issues a device reset to the affected device.
5024 * If the device is a SCSI device, a LUN reset will be sent
5025 * to the device first. If that does not work, a target reset
5026 * will be sent. If the device is a SATA device, a PHY reset will
5030 * 0 on success / non-zero on failure
5032 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5033 struct ipr_resource_entry *res)
5035 struct ipr_cmnd *ipr_cmd;
5036 struct ipr_ioarcb *ioarcb;
5037 struct ipr_cmd_pkt *cmd_pkt;
5038 struct ipr_ioarcb_ata_regs *regs;
5042 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5043 ioarcb = &ipr_cmd->ioarcb;
5044 cmd_pkt = &ioarcb->cmd_pkt;
5046 if (ipr_cmd->ioa_cfg->sis64) {
5047 regs = &ipr_cmd->i.ata_ioadl.regs;
5048 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5050 regs = &ioarcb->u.add_data.u.regs;
5052 ioarcb->res_handle = res->res_handle;
5053 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5054 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5055 if (ipr_is_gata(res)) {
5056 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5057 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5058 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5061 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5062 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5063 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5064 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5065 if (ipr_cmd->ioa_cfg->sis64)
5066 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5067 sizeof(struct ipr_ioasa_gata));
5069 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5070 sizeof(struct ipr_ioasa_gata));
5074 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5078 * ipr_sata_reset - Reset the SATA port
5079 * @link: SATA link to reset
5080 * @classes: class of the attached device
5082 * This function issues a SATA phy reset to the affected ATA link.
5085 * 0 on success / non-zero on failure
5087 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5088 unsigned long deadline)
5090 struct ipr_sata_port *sata_port = link->ap->private_data;
5091 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5092 struct ipr_resource_entry *res;
5093 unsigned long lock_flags = 0;
5097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5098 while (ioa_cfg->in_reset_reload) {
5099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5100 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5104 res = sata_port->res;
5106 rc = ipr_device_reset(ioa_cfg, res);
5107 *classes = res->ata_class;
5110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5116 * ipr_eh_dev_reset - Reset the device
5117 * @scsi_cmd: scsi command struct
5119 * This function issues a device reset to the affected device.
5120 * A LUN reset will be sent to the device first. If that does
5121 * not work, a target reset will be sent.
5126 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5128 struct ipr_cmnd *ipr_cmd;
5129 struct ipr_ioa_cfg *ioa_cfg;
5130 struct ipr_resource_entry *res;
5131 struct ata_port *ap;
5133 struct ipr_hrr_queue *hrrq;
5136 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5137 res = scsi_cmd->device->hostdata;
5143 * If we are currently going through reset/reload, return failed. This will force the
5144 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5147 if (ioa_cfg->in_reset_reload)
5149 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5152 for_each_hrrq(hrrq, ioa_cfg) {
5153 spin_lock(&hrrq->_lock);
5154 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5155 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5156 if (ipr_cmd->scsi_cmd)
5157 ipr_cmd->done = ipr_scsi_eh_done;
5159 ipr_cmd->done = ipr_sata_eh_done;
5161 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5162 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5163 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5167 spin_unlock(&hrrq->_lock);
5169 res->resetting_device = 1;
5170 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5172 if (ipr_is_gata(res) && res->sata_port) {
5173 ap = res->sata_port->ap;
5174 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5175 ata_std_error_handler(ap);
5176 spin_lock_irq(scsi_cmd->device->host->host_lock);
5178 for_each_hrrq(hrrq, ioa_cfg) {
5179 spin_lock(&hrrq->_lock);
5180 list_for_each_entry(ipr_cmd,
5181 &hrrq->hrrq_pending_q, queue) {
5182 if (ipr_cmd->ioarcb.res_handle ==
5188 spin_unlock(&hrrq->_lock);
5191 rc = ipr_device_reset(ioa_cfg, res);
5192 res->resetting_device = 0;
5193 res->reset_occurred = 1;
5196 return rc ? FAILED : SUCCESS;
5199 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5202 struct ipr_ioa_cfg *ioa_cfg;
5204 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5206 spin_lock_irq(cmd->device->host->host_lock);
5207 rc = __ipr_eh_dev_reset(cmd);
5208 spin_unlock_irq(cmd->device->host->host_lock);
5211 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5217 * ipr_bus_reset_done - Op done function for bus reset.
5218 * @ipr_cmd: ipr command struct
5220 * This function is the op done function for a bus reset
5225 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5228 struct ipr_resource_entry *res;
5231 if (!ioa_cfg->sis64)
5232 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5233 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5234 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5240 * If abort has not completed, indicate the reset has, else call the
5241 * abort's done function to wake the sleeping eh thread
5243 if (ipr_cmd->sibling->sibling)
5244 ipr_cmd->sibling->sibling = NULL;
5246 ipr_cmd->sibling->done(ipr_cmd->sibling);
5248 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5253 * ipr_abort_timeout - An abort task has timed out
5254 * @ipr_cmd: ipr command struct
5256 * This function handles when an abort task times out. If this
5257 * happens we issue a bus reset since we have resources tied
5258 * up that must be freed before returning to the midlayer.
5263 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5265 struct ipr_cmnd *reset_cmd;
5266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5267 struct ipr_cmd_pkt *cmd_pkt;
5268 unsigned long lock_flags = 0;
5271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5272 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5277 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5278 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5279 ipr_cmd->sibling = reset_cmd;
5280 reset_cmd->sibling = ipr_cmd;
5281 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5282 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5283 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5284 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5285 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5287 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5293 * ipr_cancel_op - Cancel specified op
5294 * @scsi_cmd: scsi command struct
5296 * This function cancels specified op.
5301 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5303 struct ipr_cmnd *ipr_cmd;
5304 struct ipr_ioa_cfg *ioa_cfg;
5305 struct ipr_resource_entry *res;
5306 struct ipr_cmd_pkt *cmd_pkt;
5309 struct ipr_hrr_queue *hrrq;
5312 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5313 res = scsi_cmd->device->hostdata;
5315 /* If we are currently going through reset/reload, return failed.
5316 * This will force the mid-layer to call ipr_eh_host_reset,
5317 * which will then go to sleep and wait for the reset to complete
5319 if (ioa_cfg->in_reset_reload ||
5320 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5326 * If we are aborting a timed out op, chances are that the timeout was caused
5327 * by a still not detected EEH error. In such cases, reading a register will
5328 * trigger the EEH recovery infrastructure.
5330 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5332 if (!ipr_is_gscsi(res))
5335 for_each_hrrq(hrrq, ioa_cfg) {
5336 spin_lock(&hrrq->_lock);
5337 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5338 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5339 ipr_cmd->done = ipr_scsi_eh_done;
5344 spin_unlock(&hrrq->_lock);
5350 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5351 ipr_cmd->ioarcb.res_handle = res->res_handle;
5352 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5353 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5354 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5355 ipr_cmd->u.sdev = scsi_cmd->device;
5357 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5359 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5360 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5363 * If the abort task timed out and we sent a bus reset, we will get
5364 * one the following responses to the abort
5366 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5371 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5372 if (!ipr_is_naca_model(res))
5373 res->needs_sync_complete = 1;
5376 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5380 * ipr_eh_abort - Abort a single op
5381 * @scsi_cmd: scsi command struct
5384 * 0 if scan in progress / 1 if scan is complete
5386 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5388 unsigned long lock_flags;
5389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5392 spin_lock_irqsave(shost->host_lock, lock_flags);
5393 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5395 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5397 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5402 * ipr_eh_host_reset - Reset the host adapter
5403 * @scsi_cmd: scsi command struct
5408 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5410 unsigned long flags;
5412 struct ipr_ioa_cfg *ioa_cfg;
5416 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5418 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5419 rc = ipr_cancel_op(scsi_cmd);
5420 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5423 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5429 * ipr_handle_other_interrupt - Handle "other" interrupts
5430 * @ioa_cfg: ioa config struct
5431 * @int_reg: interrupt register
5434 * IRQ_NONE / IRQ_HANDLED
5436 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5439 irqreturn_t rc = IRQ_HANDLED;
5442 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5443 int_reg &= ~int_mask_reg;
5445 /* If an interrupt on the adapter did not occur, ignore it.
5446 * Or in the case of SIS 64, check for a stage change interrupt.
5448 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5449 if (ioa_cfg->sis64) {
5450 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5451 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5452 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5454 /* clear stage change */
5455 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5456 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5457 list_del(&ioa_cfg->reset_cmd->queue);
5458 del_timer(&ioa_cfg->reset_cmd->timer);
5459 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5467 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5468 /* Mask the interrupt */
5469 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5470 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5472 list_del(&ioa_cfg->reset_cmd->queue);
5473 del_timer(&ioa_cfg->reset_cmd->timer);
5474 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5475 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5476 if (ioa_cfg->clear_isr) {
5477 if (ipr_debug && printk_ratelimit())
5478 dev_err(&ioa_cfg->pdev->dev,
5479 "Spurious interrupt detected. 0x%08X\n", int_reg);
5480 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5481 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5485 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5486 ioa_cfg->ioa_unit_checked = 1;
5487 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5488 dev_err(&ioa_cfg->pdev->dev,
5489 "No Host RRQ. 0x%08X\n", int_reg);
5491 dev_err(&ioa_cfg->pdev->dev,
5492 "Permanent IOA failure. 0x%08X\n", int_reg);
5494 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5495 ioa_cfg->sdt_state = GET_DUMP;
5497 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5498 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5505 * ipr_isr_eh - Interrupt service routine error handler
5506 * @ioa_cfg: ioa config struct
5507 * @msg: message to log
5512 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5514 ioa_cfg->errors_logged++;
5515 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5517 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5518 ioa_cfg->sdt_state = GET_DUMP;
5520 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5523 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5524 struct list_head *doneq)
5528 struct ipr_cmnd *ipr_cmd;
5529 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5532 /* If interrupts are disabled, ignore the interrupt */
5533 if (!hrr_queue->allow_interrupts)
5536 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5537 hrr_queue->toggle_bit) {
5539 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5540 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5541 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5543 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5544 cmd_index < hrr_queue->min_cmd_id)) {
5546 "Invalid response handle from IOA: ",
5551 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5552 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5554 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5556 list_move_tail(&ipr_cmd->queue, doneq);
5558 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5559 hrr_queue->hrrq_curr++;
5561 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5562 hrr_queue->toggle_bit ^= 1u;
5565 if (budget > 0 && num_hrrq >= budget)
5572 static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5574 struct ipr_ioa_cfg *ioa_cfg;
5575 struct ipr_hrr_queue *hrrq;
5576 struct ipr_cmnd *ipr_cmd, *temp;
5577 unsigned long hrrq_flags;
5581 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5582 ioa_cfg = hrrq->ioa_cfg;
5584 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5585 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5587 if (completed_ops < budget)
5588 blk_iopoll_complete(iop);
5589 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5591 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5592 list_del(&ipr_cmd->queue);
5593 del_timer(&ipr_cmd->timer);
5594 ipr_cmd->fast_done(ipr_cmd);
5597 return completed_ops;
5601 * ipr_isr - Interrupt service routine
5603 * @devp: pointer to ioa config struct
5606 * IRQ_NONE / IRQ_HANDLED
5608 static irqreturn_t ipr_isr(int irq, void *devp)
5610 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5611 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5612 unsigned long hrrq_flags = 0;
5616 struct ipr_cmnd *ipr_cmd, *temp;
5617 irqreturn_t rc = IRQ_NONE;
5620 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5621 /* If interrupts are disabled, ignore the interrupt */
5622 if (!hrrq->allow_interrupts) {
5623 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5628 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5631 if (!ioa_cfg->clear_isr)
5634 /* Clear the PCI interrupt */
5637 writel(IPR_PCII_HRRQ_UPDATED,
5638 ioa_cfg->regs.clr_interrupt_reg32);
5639 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5640 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5641 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5643 } else if (rc == IRQ_NONE && irq_none == 0) {
5644 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5646 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5647 int_reg & IPR_PCII_HRRQ_UPDATED) {
5649 "Error clearing HRRQ: ", num_hrrq);
5656 if (unlikely(rc == IRQ_NONE))
5657 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5659 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5660 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5661 list_del(&ipr_cmd->queue);
5662 del_timer(&ipr_cmd->timer);
5663 ipr_cmd->fast_done(ipr_cmd);
5669 * ipr_isr_mhrrq - Interrupt service routine
5671 * @devp: pointer to ioa config struct
5674 * IRQ_NONE / IRQ_HANDLED
5676 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5678 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5679 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5680 unsigned long hrrq_flags = 0;
5681 struct ipr_cmnd *ipr_cmd, *temp;
5682 irqreturn_t rc = IRQ_NONE;
5685 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5687 /* If interrupts are disabled, ignore the interrupt */
5688 if (!hrrq->allow_interrupts) {
5689 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5693 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5694 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5696 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5697 blk_iopoll_sched(&hrrq->iopoll);
5698 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5702 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5705 if (ipr_process_hrrq(hrrq, -1, &doneq))
5709 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5711 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5712 list_del(&ipr_cmd->queue);
5713 del_timer(&ipr_cmd->timer);
5714 ipr_cmd->fast_done(ipr_cmd);
5720 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5721 * @ioa_cfg: ioa config struct
5722 * @ipr_cmd: ipr command struct
5725 * 0 on success / -1 on failure
5727 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5728 struct ipr_cmnd *ipr_cmd)
5731 struct scatterlist *sg;
5733 u32 ioadl_flags = 0;
5734 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5735 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5736 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5738 length = scsi_bufflen(scsi_cmd);
5742 nseg = scsi_dma_map(scsi_cmd);
5744 if (printk_ratelimit())
5745 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5749 ipr_cmd->dma_use_sg = nseg;
5751 ioarcb->data_transfer_length = cpu_to_be32(length);
5753 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5755 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5756 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5757 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5758 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5759 ioadl_flags = IPR_IOADL_FLAGS_READ;
5761 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5762 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5763 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5764 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5767 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5772 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5773 * @ioa_cfg: ioa config struct
5774 * @ipr_cmd: ipr command struct
5777 * 0 on success / -1 on failure
5779 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5780 struct ipr_cmnd *ipr_cmd)
5783 struct scatterlist *sg;
5785 u32 ioadl_flags = 0;
5786 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5787 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5788 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5790 length = scsi_bufflen(scsi_cmd);
5794 nseg = scsi_dma_map(scsi_cmd);
5796 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5800 ipr_cmd->dma_use_sg = nseg;
5802 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5803 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5804 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5805 ioarcb->data_transfer_length = cpu_to_be32(length);
5807 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5808 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5809 ioadl_flags = IPR_IOADL_FLAGS_READ;
5810 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5811 ioarcb->read_ioadl_len =
5812 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5815 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5816 ioadl = ioarcb->u.add_data.u.ioadl;
5817 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5818 offsetof(struct ipr_ioarcb, u.add_data));
5819 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5822 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5823 ioadl[i].flags_and_data_len =
5824 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5825 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5828 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5833 * ipr_erp_done - Process completion of ERP for a device
5834 * @ipr_cmd: ipr command struct
5836 * This function copies the sense buffer into the scsi_cmd
5837 * struct and pushes the scsi_done function.
5842 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5844 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5845 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5846 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5848 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5849 scsi_cmd->result |= (DID_ERROR << 16);
5850 scmd_printk(KERN_ERR, scsi_cmd,
5851 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5853 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5854 SCSI_SENSE_BUFFERSIZE);
5858 if (!ipr_is_naca_model(res))
5859 res->needs_sync_complete = 1;
5862 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5863 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5864 scsi_cmd->scsi_done(scsi_cmd);
5868 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5869 * @ipr_cmd: ipr command struct
5874 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5876 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5877 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5878 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5880 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5881 ioarcb->data_transfer_length = 0;
5882 ioarcb->read_data_transfer_length = 0;
5883 ioarcb->ioadl_len = 0;
5884 ioarcb->read_ioadl_len = 0;
5885 ioasa->hdr.ioasc = 0;
5886 ioasa->hdr.residual_data_len = 0;
5888 if (ipr_cmd->ioa_cfg->sis64)
5889 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5890 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5892 ioarcb->write_ioadl_addr =
5893 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5894 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5899 * ipr_erp_request_sense - Send request sense to a device
5900 * @ipr_cmd: ipr command struct
5902 * This function sends a request sense to a device as a result
5903 * of a check condition.
5908 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5910 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5911 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5913 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5914 ipr_erp_done(ipr_cmd);
5918 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5920 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5921 cmd_pkt->cdb[0] = REQUEST_SENSE;
5922 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5924 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5925 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5927 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5928 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5930 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5931 IPR_REQUEST_SENSE_TIMEOUT * 2);
5935 * ipr_erp_cancel_all - Send cancel all to a device
5936 * @ipr_cmd: ipr command struct
5938 * This function sends a cancel all to a device to clear the
5939 * queue. If we are running TCQ on the device, QERR is set to 1,
5940 * which means all outstanding ops have been dropped on the floor.
5941 * Cancel all will return them to us.
5946 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5948 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5949 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5950 struct ipr_cmd_pkt *cmd_pkt;
5954 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5956 if (!scsi_cmd->device->simple_tags) {
5957 ipr_erp_request_sense(ipr_cmd);
5961 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5962 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5963 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5965 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5966 IPR_CANCEL_ALL_TIMEOUT);
5970 * ipr_dump_ioasa - Dump contents of IOASA
5971 * @ioa_cfg: ioa config struct
5972 * @ipr_cmd: ipr command struct
5973 * @res: resource entry struct
5975 * This function is invoked by the interrupt handler when ops
5976 * fail. It will log the IOASA if appropriate. Only called
5982 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5983 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5987 u32 ioasc, fd_ioasc;
5988 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5989 __be32 *ioasa_data = (__be32 *)ioasa;
5992 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5993 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5998 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6001 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6002 error_index = ipr_get_error(fd_ioasc);
6004 error_index = ipr_get_error(ioasc);
6006 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6007 /* Don't log an error if the IOA already logged one */
6008 if (ioasa->hdr.ilid != 0)
6011 if (!ipr_is_gscsi(res))
6014 if (ipr_error_table[error_index].log_ioasa == 0)
6018 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6020 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6021 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6022 data_len = sizeof(struct ipr_ioasa64);
6023 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6024 data_len = sizeof(struct ipr_ioasa);
6026 ipr_err("IOASA Dump:\n");
6028 for (i = 0; i < data_len / 4; i += 4) {
6029 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6030 be32_to_cpu(ioasa_data[i]),
6031 be32_to_cpu(ioasa_data[i+1]),
6032 be32_to_cpu(ioasa_data[i+2]),
6033 be32_to_cpu(ioasa_data[i+3]));
6038 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6040 * @sense_buf: sense data buffer
6045 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6048 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6049 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6050 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6051 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6053 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6055 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6058 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6060 if (ipr_is_vset_device(res) &&
6061 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6062 ioasa->u.vset.failing_lba_hi != 0) {
6063 sense_buf[0] = 0x72;
6064 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6065 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6066 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6070 sense_buf[9] = 0x0A;
6071 sense_buf[10] = 0x80;
6073 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6075 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6076 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6077 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6078 sense_buf[15] = failing_lba & 0x000000ff;
6080 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6082 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6083 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6084 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6085 sense_buf[19] = failing_lba & 0x000000ff;
6087 sense_buf[0] = 0x70;
6088 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6089 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6090 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6092 /* Illegal request */
6093 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6094 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6095 sense_buf[7] = 10; /* additional length */
6097 /* IOARCB was in error */
6098 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6099 sense_buf[15] = 0xC0;
6100 else /* Parameter data was invalid */
6101 sense_buf[15] = 0x80;
6104 ((IPR_FIELD_POINTER_MASK &
6105 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6107 (IPR_FIELD_POINTER_MASK &
6108 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6110 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6111 if (ipr_is_vset_device(res))
6112 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6114 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6116 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6117 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6118 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6119 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6120 sense_buf[6] = failing_lba & 0x000000ff;
6123 sense_buf[7] = 6; /* additional length */
6129 * ipr_get_autosense - Copy autosense data to sense buffer
6130 * @ipr_cmd: ipr command struct
6132 * This function copies the autosense buffer to the buffer
6133 * in the scsi_cmd, if there is autosense available.
6136 * 1 if autosense was available / 0 if not
6138 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6140 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6141 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6143 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6146 if (ipr_cmd->ioa_cfg->sis64)
6147 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6148 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6149 SCSI_SENSE_BUFFERSIZE));
6151 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6152 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6153 SCSI_SENSE_BUFFERSIZE));
6158 * ipr_erp_start - Process an error response for a SCSI op
6159 * @ioa_cfg: ioa config struct
6160 * @ipr_cmd: ipr command struct
6162 * This function determines whether or not to initiate ERP
6163 * on the affected device.
6168 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6169 struct ipr_cmnd *ipr_cmd)
6171 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6172 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6173 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6174 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6177 ipr_scsi_eh_done(ipr_cmd);
6181 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6182 ipr_gen_sense(ipr_cmd);
6184 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6186 switch (masked_ioasc) {
6187 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6188 if (ipr_is_naca_model(res))
6189 scsi_cmd->result |= (DID_ABORT << 16);
6191 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6193 case IPR_IOASC_IR_RESOURCE_HANDLE:
6194 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6195 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6197 case IPR_IOASC_HW_SEL_TIMEOUT:
6198 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6199 if (!ipr_is_naca_model(res))
6200 res->needs_sync_complete = 1;
6202 case IPR_IOASC_SYNC_REQUIRED:
6204 res->needs_sync_complete = 1;
6205 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6207 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6208 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6209 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6211 case IPR_IOASC_BUS_WAS_RESET:
6212 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6214 * Report the bus reset and ask for a retry. The device
6215 * will give CC/UA the next command.
6217 if (!res->resetting_device)
6218 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6219 scsi_cmd->result |= (DID_ERROR << 16);
6220 if (!ipr_is_naca_model(res))
6221 res->needs_sync_complete = 1;
6223 case IPR_IOASC_HW_DEV_BUS_STATUS:
6224 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6225 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6226 if (!ipr_get_autosense(ipr_cmd)) {
6227 if (!ipr_is_naca_model(res)) {
6228 ipr_erp_cancel_all(ipr_cmd);
6233 if (!ipr_is_naca_model(res))
6234 res->needs_sync_complete = 1;
6236 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6238 case IPR_IOASC_IR_NON_OPTIMIZED:
6239 if (res->raw_mode) {
6241 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6243 scsi_cmd->result |= (DID_ERROR << 16);
6246 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6247 scsi_cmd->result |= (DID_ERROR << 16);
6248 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6249 res->needs_sync_complete = 1;
6253 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6254 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6255 scsi_cmd->scsi_done(scsi_cmd);
6259 * ipr_scsi_done - mid-layer done function
6260 * @ipr_cmd: ipr command struct
6262 * This function is invoked by the interrupt handler for
6263 * ops generated by the SCSI mid-layer
6268 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6272 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6273 unsigned long lock_flags;
6275 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6277 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6278 scsi_dma_unmap(scsi_cmd);
6280 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6281 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6282 scsi_cmd->scsi_done(scsi_cmd);
6283 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6286 spin_lock(&ipr_cmd->hrrq->_lock);
6287 ipr_erp_start(ioa_cfg, ipr_cmd);
6288 spin_unlock(&ipr_cmd->hrrq->_lock);
6289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6294 * ipr_queuecommand - Queue a mid-layer request
6295 * @shost: scsi host struct
6296 * @scsi_cmd: scsi command struct
6298 * This function queues a request generated by the mid-layer.
6302 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6303 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6305 static int ipr_queuecommand(struct Scsi_Host *shost,
6306 struct scsi_cmnd *scsi_cmd)
6308 struct ipr_ioa_cfg *ioa_cfg;
6309 struct ipr_resource_entry *res;
6310 struct ipr_ioarcb *ioarcb;
6311 struct ipr_cmnd *ipr_cmd;
6312 unsigned long hrrq_flags, lock_flags;
6314 struct ipr_hrr_queue *hrrq;
6317 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6319 scsi_cmd->result = (DID_OK << 16);
6320 res = scsi_cmd->device->hostdata;
6322 if (ipr_is_gata(res) && res->sata_port) {
6323 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6324 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6325 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6329 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6330 hrrq = &ioa_cfg->hrrq[hrrq_id];
6332 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6334 * We are currently blocking all devices due to a host reset
6335 * We have told the host to stop giving us new requests, but
6336 * ERP ops don't count. FIXME
6338 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6339 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6340 return SCSI_MLQUEUE_HOST_BUSY;
6344 * FIXME - Create scsi_set_host_offline interface
6345 * and the ioa_is_dead check can be removed
6347 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6348 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6352 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6353 if (ipr_cmd == NULL) {
6354 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6355 return SCSI_MLQUEUE_HOST_BUSY;
6357 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6359 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6360 ioarcb = &ipr_cmd->ioarcb;
6362 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6363 ipr_cmd->scsi_cmd = scsi_cmd;
6364 ipr_cmd->done = ipr_scsi_eh_done;
6366 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6367 if (scsi_cmd->underflow == 0)
6368 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6370 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6371 if (ipr_is_gscsi(res) && res->reset_occurred) {
6372 res->reset_occurred = 0;
6373 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6375 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6376 if (scsi_cmd->flags & SCMD_TAGGED)
6377 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6379 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6382 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6383 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6384 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6386 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6389 if (scsi_cmd->underflow == 0)
6390 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6394 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6396 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6398 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6399 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6400 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6401 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6403 scsi_dma_unmap(scsi_cmd);
6404 return SCSI_MLQUEUE_HOST_BUSY;
6407 if (unlikely(hrrq->ioa_is_dead)) {
6408 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6409 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6410 scsi_dma_unmap(scsi_cmd);
6414 ioarcb->res_handle = res->res_handle;
6415 if (res->needs_sync_complete) {
6416 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6417 res->needs_sync_complete = 0;
6419 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6420 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6421 ipr_send_command(ipr_cmd);
6422 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6426 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6427 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6428 scsi_cmd->result = (DID_NO_CONNECT << 16);
6429 scsi_cmd->scsi_done(scsi_cmd);
6430 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6435 * ipr_ioctl - IOCTL handler
6436 * @sdev: scsi device struct
6441 * 0 on success / other on failure
6443 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6445 struct ipr_resource_entry *res;
6447 res = (struct ipr_resource_entry *)sdev->hostdata;
6448 if (res && ipr_is_gata(res)) {
6449 if (cmd == HDIO_GET_IDENTITY)
6451 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6458 * ipr_info - Get information about the card/driver
6459 * @scsi_host: scsi host struct
6462 * pointer to buffer with description string
6464 static const char *ipr_ioa_info(struct Scsi_Host *host)
6466 static char buffer[512];
6467 struct ipr_ioa_cfg *ioa_cfg;
6468 unsigned long lock_flags = 0;
6470 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6472 spin_lock_irqsave(host->host_lock, lock_flags);
6473 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6474 spin_unlock_irqrestore(host->host_lock, lock_flags);
6479 static struct scsi_host_template driver_template = {
6480 .module = THIS_MODULE,
6482 .info = ipr_ioa_info,
6484 .queuecommand = ipr_queuecommand,
6485 .eh_abort_handler = ipr_eh_abort,
6486 .eh_device_reset_handler = ipr_eh_dev_reset,
6487 .eh_host_reset_handler = ipr_eh_host_reset,
6488 .slave_alloc = ipr_slave_alloc,
6489 .slave_configure = ipr_slave_configure,
6490 .slave_destroy = ipr_slave_destroy,
6491 .scan_finished = ipr_scan_finished,
6492 .target_alloc = ipr_target_alloc,
6493 .target_destroy = ipr_target_destroy,
6494 .change_queue_depth = ipr_change_queue_depth,
6495 .bios_param = ipr_biosparam,
6496 .can_queue = IPR_MAX_COMMANDS,
6498 .sg_tablesize = IPR_MAX_SGLIST,
6499 .max_sectors = IPR_IOA_MAX_SECTORS,
6500 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6501 .use_clustering = ENABLE_CLUSTERING,
6502 .shost_attrs = ipr_ioa_attrs,
6503 .sdev_attrs = ipr_dev_attrs,
6504 .proc_name = IPR_NAME,
6509 * ipr_ata_phy_reset - libata phy_reset handler
6510 * @ap: ata port to reset
6513 static void ipr_ata_phy_reset(struct ata_port *ap)
6515 unsigned long flags;
6516 struct ipr_sata_port *sata_port = ap->private_data;
6517 struct ipr_resource_entry *res = sata_port->res;
6518 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6522 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6523 while (ioa_cfg->in_reset_reload) {
6524 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6525 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6526 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6529 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6532 rc = ipr_device_reset(ioa_cfg, res);
6535 ap->link.device[0].class = ATA_DEV_NONE;
6539 ap->link.device[0].class = res->ata_class;
6540 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6541 ap->link.device[0].class = ATA_DEV_NONE;
6544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6549 * ipr_ata_post_internal - Cleanup after an internal command
6550 * @qc: ATA queued command
6555 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6557 struct ipr_sata_port *sata_port = qc->ap->private_data;
6558 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6559 struct ipr_cmnd *ipr_cmd;
6560 struct ipr_hrr_queue *hrrq;
6561 unsigned long flags;
6563 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6564 while (ioa_cfg->in_reset_reload) {
6565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6566 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6567 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6570 for_each_hrrq(hrrq, ioa_cfg) {
6571 spin_lock(&hrrq->_lock);
6572 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6573 if (ipr_cmd->qc == qc) {
6574 ipr_device_reset(ioa_cfg, sata_port->res);
6578 spin_unlock(&hrrq->_lock);
6580 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6584 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6585 * @regs: destination
6586 * @tf: source ATA taskfile
6591 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6592 struct ata_taskfile *tf)
6594 regs->feature = tf->feature;
6595 regs->nsect = tf->nsect;
6596 regs->lbal = tf->lbal;
6597 regs->lbam = tf->lbam;
6598 regs->lbah = tf->lbah;
6599 regs->device = tf->device;
6600 regs->command = tf->command;
6601 regs->hob_feature = tf->hob_feature;
6602 regs->hob_nsect = tf->hob_nsect;
6603 regs->hob_lbal = tf->hob_lbal;
6604 regs->hob_lbam = tf->hob_lbam;
6605 regs->hob_lbah = tf->hob_lbah;
6606 regs->ctl = tf->ctl;
6610 * ipr_sata_done - done function for SATA commands
6611 * @ipr_cmd: ipr command struct
6613 * This function is invoked by the interrupt handler for
6614 * ops generated by the SCSI mid-layer to SATA devices
6619 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6621 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6622 struct ata_queued_cmd *qc = ipr_cmd->qc;
6623 struct ipr_sata_port *sata_port = qc->ap->private_data;
6624 struct ipr_resource_entry *res = sata_port->res;
6625 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6627 spin_lock(&ipr_cmd->hrrq->_lock);
6628 if (ipr_cmd->ioa_cfg->sis64)
6629 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6630 sizeof(struct ipr_ioasa_gata));
6632 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6633 sizeof(struct ipr_ioasa_gata));
6634 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6636 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6637 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6639 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6640 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6642 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6643 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6644 spin_unlock(&ipr_cmd->hrrq->_lock);
6645 ata_qc_complete(qc);
6649 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6650 * @ipr_cmd: ipr command struct
6651 * @qc: ATA queued command
6654 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6655 struct ata_queued_cmd *qc)
6657 u32 ioadl_flags = 0;
6658 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6659 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6660 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6661 int len = qc->nbytes;
6662 struct scatterlist *sg;
6664 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6669 if (qc->dma_dir == DMA_TO_DEVICE) {
6670 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6671 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6672 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6673 ioadl_flags = IPR_IOADL_FLAGS_READ;
6675 ioarcb->data_transfer_length = cpu_to_be32(len);
6677 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6678 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6679 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6681 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6682 ioadl64->flags = cpu_to_be32(ioadl_flags);
6683 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6684 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6686 last_ioadl64 = ioadl64;
6690 if (likely(last_ioadl64))
6691 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6695 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6696 * @ipr_cmd: ipr command struct
6697 * @qc: ATA queued command
6700 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6701 struct ata_queued_cmd *qc)
6703 u32 ioadl_flags = 0;
6704 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6705 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6706 struct ipr_ioadl_desc *last_ioadl = NULL;
6707 int len = qc->nbytes;
6708 struct scatterlist *sg;
6714 if (qc->dma_dir == DMA_TO_DEVICE) {
6715 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6716 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6717 ioarcb->data_transfer_length = cpu_to_be32(len);
6719 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6720 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6721 ioadl_flags = IPR_IOADL_FLAGS_READ;
6722 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6723 ioarcb->read_ioadl_len =
6724 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6727 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6728 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6729 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6735 if (likely(last_ioadl))
6736 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6740 * ipr_qc_defer - Get a free ipr_cmd
6741 * @qc: queued command
6746 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6748 struct ata_port *ap = qc->ap;
6749 struct ipr_sata_port *sata_port = ap->private_data;
6750 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6751 struct ipr_cmnd *ipr_cmd;
6752 struct ipr_hrr_queue *hrrq;
6755 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6756 hrrq = &ioa_cfg->hrrq[hrrq_id];
6758 qc->lldd_task = NULL;
6759 spin_lock(&hrrq->_lock);
6760 if (unlikely(hrrq->ioa_is_dead)) {
6761 spin_unlock(&hrrq->_lock);
6765 if (unlikely(!hrrq->allow_cmds)) {
6766 spin_unlock(&hrrq->_lock);
6767 return ATA_DEFER_LINK;
6770 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6771 if (ipr_cmd == NULL) {
6772 spin_unlock(&hrrq->_lock);
6773 return ATA_DEFER_LINK;
6776 qc->lldd_task = ipr_cmd;
6777 spin_unlock(&hrrq->_lock);
6782 * ipr_qc_issue - Issue a SATA qc to a device
6783 * @qc: queued command
6788 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6790 struct ata_port *ap = qc->ap;
6791 struct ipr_sata_port *sata_port = ap->private_data;
6792 struct ipr_resource_entry *res = sata_port->res;
6793 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6794 struct ipr_cmnd *ipr_cmd;
6795 struct ipr_ioarcb *ioarcb;
6796 struct ipr_ioarcb_ata_regs *regs;
6798 if (qc->lldd_task == NULL)
6801 ipr_cmd = qc->lldd_task;
6802 if (ipr_cmd == NULL)
6803 return AC_ERR_SYSTEM;
6805 qc->lldd_task = NULL;
6806 spin_lock(&ipr_cmd->hrrq->_lock);
6807 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6808 ipr_cmd->hrrq->ioa_is_dead)) {
6809 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6810 spin_unlock(&ipr_cmd->hrrq->_lock);
6811 return AC_ERR_SYSTEM;
6814 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
6815 ioarcb = &ipr_cmd->ioarcb;
6817 if (ioa_cfg->sis64) {
6818 regs = &ipr_cmd->i.ata_ioadl.regs;
6819 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6821 regs = &ioarcb->u.add_data.u.regs;
6823 memset(regs, 0, sizeof(*regs));
6824 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6826 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
6828 ipr_cmd->done = ipr_sata_done;
6829 ipr_cmd->ioarcb.res_handle = res->res_handle;
6830 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6831 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6832 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6833 ipr_cmd->dma_use_sg = qc->n_elem;
6836 ipr_build_ata_ioadl64(ipr_cmd, qc);
6838 ipr_build_ata_ioadl(ipr_cmd, qc);
6840 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6841 ipr_copy_sata_tf(regs, &qc->tf);
6842 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6843 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6845 switch (qc->tf.protocol) {
6846 case ATA_PROT_NODATA:
6851 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6854 case ATAPI_PROT_PIO:
6855 case ATAPI_PROT_NODATA:
6856 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6859 case ATAPI_PROT_DMA:
6860 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6861 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6866 spin_unlock(&ipr_cmd->hrrq->_lock);
6867 return AC_ERR_INVALID;
6870 ipr_send_command(ipr_cmd);
6871 spin_unlock(&ipr_cmd->hrrq->_lock);
6877 * ipr_qc_fill_rtf - Read result TF
6878 * @qc: ATA queued command
6883 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6885 struct ipr_sata_port *sata_port = qc->ap->private_data;
6886 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6887 struct ata_taskfile *tf = &qc->result_tf;
6889 tf->feature = g->error;
6890 tf->nsect = g->nsect;
6894 tf->device = g->device;
6895 tf->command = g->status;
6896 tf->hob_nsect = g->hob_nsect;
6897 tf->hob_lbal = g->hob_lbal;
6898 tf->hob_lbam = g->hob_lbam;
6899 tf->hob_lbah = g->hob_lbah;
6904 static struct ata_port_operations ipr_sata_ops = {
6905 .phy_reset = ipr_ata_phy_reset,
6906 .hardreset = ipr_sata_reset,
6907 .post_internal_cmd = ipr_ata_post_internal,
6908 .qc_prep = ata_noop_qc_prep,
6909 .qc_defer = ipr_qc_defer,
6910 .qc_issue = ipr_qc_issue,
6911 .qc_fill_rtf = ipr_qc_fill_rtf,
6912 .port_start = ata_sas_port_start,
6913 .port_stop = ata_sas_port_stop
6916 static struct ata_port_info sata_port_info = {
6917 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6919 .pio_mask = ATA_PIO4_ONLY,
6920 .mwdma_mask = ATA_MWDMA2,
6921 .udma_mask = ATA_UDMA6,
6922 .port_ops = &ipr_sata_ops
6925 #ifdef CONFIG_PPC_PSERIES
6926 static const u16 ipr_blocked_processors[] = {
6938 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6939 * @ioa_cfg: ioa cfg struct
6941 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6942 * certain pSeries hardware. This function determines if the given
6943 * adapter is in one of these confgurations or not.
6946 * 1 if adapter is not supported / 0 if adapter is supported
6948 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6952 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6953 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
6954 if (pvr_version_is(ipr_blocked_processors[i]))
6961 #define ipr_invalid_adapter(ioa_cfg) 0
6965 * ipr_ioa_bringdown_done - IOA bring down completion.
6966 * @ipr_cmd: ipr command struct
6968 * This function processes the completion of an adapter bring down.
6969 * It wakes any reset sleepers.
6974 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6976 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6980 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6982 spin_unlock_irq(ioa_cfg->host->host_lock);
6983 scsi_unblock_requests(ioa_cfg->host);
6984 spin_lock_irq(ioa_cfg->host->host_lock);
6987 ioa_cfg->in_reset_reload = 0;
6988 ioa_cfg->reset_retries = 0;
6989 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6990 spin_lock(&ioa_cfg->hrrq[i]._lock);
6991 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6992 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6996 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6997 wake_up_all(&ioa_cfg->reset_wait_q);
7000 return IPR_RC_JOB_RETURN;
7004 * ipr_ioa_reset_done - IOA reset completion.
7005 * @ipr_cmd: ipr command struct
7007 * This function processes the completion of an adapter reset.
7008 * It schedules any necessary mid-layer add/removes and
7009 * wakes any reset sleepers.
7014 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7016 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7017 struct ipr_resource_entry *res;
7018 struct ipr_hostrcb *hostrcb, *temp;
7022 ioa_cfg->in_reset_reload = 0;
7023 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7024 spin_lock(&ioa_cfg->hrrq[j]._lock);
7025 ioa_cfg->hrrq[j].allow_cmds = 1;
7026 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7029 ioa_cfg->reset_cmd = NULL;
7030 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7032 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7033 if (res->add_to_ml || res->del_from_ml) {
7038 schedule_work(&ioa_cfg->work_q);
7040 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7041 list_del(&hostrcb->queue);
7042 if (i++ < IPR_NUM_LOG_HCAMS)
7043 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7045 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7048 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7049 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7051 ioa_cfg->reset_retries = 0;
7052 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7053 wake_up_all(&ioa_cfg->reset_wait_q);
7055 spin_unlock(ioa_cfg->host->host_lock);
7056 scsi_unblock_requests(ioa_cfg->host);
7057 spin_lock(ioa_cfg->host->host_lock);
7059 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
7060 scsi_block_requests(ioa_cfg->host);
7062 schedule_work(&ioa_cfg->work_q);
7064 return IPR_RC_JOB_RETURN;
7068 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7069 * @supported_dev: supported device struct
7070 * @vpids: vendor product id struct
7075 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7076 struct ipr_std_inq_vpids *vpids)
7078 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7079 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7080 supported_dev->num_records = 1;
7081 supported_dev->data_length =
7082 cpu_to_be16(sizeof(struct ipr_supported_device));
7083 supported_dev->reserved = 0;
7087 * ipr_set_supported_devs - Send Set Supported Devices for a device
7088 * @ipr_cmd: ipr command struct
7090 * This function sends a Set Supported Devices to the adapter
7093 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7095 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7097 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7098 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7099 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7100 struct ipr_resource_entry *res = ipr_cmd->u.res;
7102 ipr_cmd->job_step = ipr_ioa_reset_done;
7104 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7105 if (!ipr_is_scsi_disk(res))
7108 ipr_cmd->u.res = res;
7109 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7111 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7112 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7113 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7115 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7116 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7117 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7118 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7120 ipr_init_ioadl(ipr_cmd,
7121 ioa_cfg->vpd_cbs_dma +
7122 offsetof(struct ipr_misc_cbs, supp_dev),
7123 sizeof(struct ipr_supported_device),
7124 IPR_IOADL_FLAGS_WRITE_LAST);
7126 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7127 IPR_SET_SUP_DEVICE_TIMEOUT);
7129 if (!ioa_cfg->sis64)
7130 ipr_cmd->job_step = ipr_set_supported_devs;
7132 return IPR_RC_JOB_RETURN;
7136 return IPR_RC_JOB_CONTINUE;
7140 * ipr_get_mode_page - Locate specified mode page
7141 * @mode_pages: mode page buffer
7142 * @page_code: page code to find
7143 * @len: minimum required length for mode page
7146 * pointer to mode page / NULL on failure
7148 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7149 u32 page_code, u32 len)
7151 struct ipr_mode_page_hdr *mode_hdr;
7155 if (!mode_pages || (mode_pages->hdr.length == 0))
7158 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7159 mode_hdr = (struct ipr_mode_page_hdr *)
7160 (mode_pages->data + mode_pages->hdr.block_desc_len);
7163 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7164 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7168 page_length = (sizeof(struct ipr_mode_page_hdr) +
7169 mode_hdr->page_length);
7170 length -= page_length;
7171 mode_hdr = (struct ipr_mode_page_hdr *)
7172 ((unsigned long)mode_hdr + page_length);
7179 * ipr_check_term_power - Check for term power errors
7180 * @ioa_cfg: ioa config struct
7181 * @mode_pages: IOAFP mode pages buffer
7183 * Check the IOAFP's mode page 28 for term power errors
7188 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7189 struct ipr_mode_pages *mode_pages)
7193 struct ipr_dev_bus_entry *bus;
7194 struct ipr_mode_page28 *mode_page;
7196 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7197 sizeof(struct ipr_mode_page28));
7199 entry_length = mode_page->entry_length;
7201 bus = mode_page->bus;
7203 for (i = 0; i < mode_page->num_entries; i++) {
7204 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7205 dev_err(&ioa_cfg->pdev->dev,
7206 "Term power is absent on scsi bus %d\n",
7210 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7215 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7216 * @ioa_cfg: ioa config struct
7218 * Looks through the config table checking for SES devices. If
7219 * the SES device is in the SES table indicating a maximum SCSI
7220 * bus speed, the speed is limited for the bus.
7225 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7230 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7231 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7232 ioa_cfg->bus_attr[i].bus_width);
7234 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7235 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7240 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7241 * @ioa_cfg: ioa config struct
7242 * @mode_pages: mode page 28 buffer
7244 * Updates mode page 28 based on driver configuration
7249 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7250 struct ipr_mode_pages *mode_pages)
7252 int i, entry_length;
7253 struct ipr_dev_bus_entry *bus;
7254 struct ipr_bus_attributes *bus_attr;
7255 struct ipr_mode_page28 *mode_page;
7257 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7258 sizeof(struct ipr_mode_page28));
7260 entry_length = mode_page->entry_length;
7262 /* Loop for each device bus entry */
7263 for (i = 0, bus = mode_page->bus;
7264 i < mode_page->num_entries;
7265 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7266 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7267 dev_err(&ioa_cfg->pdev->dev,
7268 "Invalid resource address reported: 0x%08X\n",
7269 IPR_GET_PHYS_LOC(bus->res_addr));
7273 bus_attr = &ioa_cfg->bus_attr[i];
7274 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7275 bus->bus_width = bus_attr->bus_width;
7276 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7277 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7278 if (bus_attr->qas_enabled)
7279 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7281 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7286 * ipr_build_mode_select - Build a mode select command
7287 * @ipr_cmd: ipr command struct
7288 * @res_handle: resource handle to send command to
7289 * @parm: Byte 2 of Mode Sense command
7290 * @dma_addr: DMA buffer address
7291 * @xfer_len: data transfer length
7296 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7297 __be32 res_handle, u8 parm,
7298 dma_addr_t dma_addr, u8 xfer_len)
7300 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7302 ioarcb->res_handle = res_handle;
7303 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7304 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7305 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7306 ioarcb->cmd_pkt.cdb[1] = parm;
7307 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7309 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7313 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7314 * @ipr_cmd: ipr command struct
7316 * This function sets up the SCSI bus attributes and sends
7317 * a Mode Select for Page 28 to activate them.
7322 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7324 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7325 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7329 ipr_scsi_bus_speed_limit(ioa_cfg);
7330 ipr_check_term_power(ioa_cfg, mode_pages);
7331 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7332 length = mode_pages->hdr.length + 1;
7333 mode_pages->hdr.length = 0;
7335 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7336 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7339 ipr_cmd->job_step = ipr_set_supported_devs;
7340 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7341 struct ipr_resource_entry, queue);
7342 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7345 return IPR_RC_JOB_RETURN;
7349 * ipr_build_mode_sense - Builds a mode sense command
7350 * @ipr_cmd: ipr command struct
7351 * @res: resource entry struct
7352 * @parm: Byte 2 of mode sense command
7353 * @dma_addr: DMA address of mode sense buffer
7354 * @xfer_len: Size of DMA buffer
7359 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7361 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7363 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7365 ioarcb->res_handle = res_handle;
7366 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7367 ioarcb->cmd_pkt.cdb[2] = parm;
7368 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7369 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7371 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7375 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7376 * @ipr_cmd: ipr command struct
7378 * This function handles the failure of an IOA bringup command.
7383 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7386 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7388 dev_err(&ioa_cfg->pdev->dev,
7389 "0x%02X failed with IOASC: 0x%08X\n",
7390 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7392 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7393 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7394 return IPR_RC_JOB_RETURN;
7398 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7399 * @ipr_cmd: ipr command struct
7401 * This function handles the failure of a Mode Sense to the IOAFP.
7402 * Some adapters do not handle all mode pages.
7405 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7407 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7409 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7410 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7412 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7413 ipr_cmd->job_step = ipr_set_supported_devs;
7414 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7415 struct ipr_resource_entry, queue);
7416 return IPR_RC_JOB_CONTINUE;
7419 return ipr_reset_cmd_failed(ipr_cmd);
7423 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7424 * @ipr_cmd: ipr command struct
7426 * This function send a Page 28 mode sense to the IOA to
7427 * retrieve SCSI bus attributes.
7432 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7434 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7437 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7438 0x28, ioa_cfg->vpd_cbs_dma +
7439 offsetof(struct ipr_misc_cbs, mode_pages),
7440 sizeof(struct ipr_mode_pages));
7442 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7443 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7445 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7448 return IPR_RC_JOB_RETURN;
7452 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7453 * @ipr_cmd: ipr command struct
7455 * This function enables dual IOA RAID support if possible.
7460 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7462 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7463 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7464 struct ipr_mode_page24 *mode_page;
7468 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7469 sizeof(struct ipr_mode_page24));
7472 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7474 length = mode_pages->hdr.length + 1;
7475 mode_pages->hdr.length = 0;
7477 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7478 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7481 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7485 return IPR_RC_JOB_RETURN;
7489 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7490 * @ipr_cmd: ipr command struct
7492 * This function handles the failure of a Mode Sense to the IOAFP.
7493 * Some adapters do not handle all mode pages.
7496 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7498 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7500 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7502 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7503 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7504 return IPR_RC_JOB_CONTINUE;
7507 return ipr_reset_cmd_failed(ipr_cmd);
7511 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7512 * @ipr_cmd: ipr command struct
7514 * This function send a mode sense to the IOA to retrieve
7515 * the IOA Advanced Function Control mode page.
7520 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7522 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7525 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7526 0x24, ioa_cfg->vpd_cbs_dma +
7527 offsetof(struct ipr_misc_cbs, mode_pages),
7528 sizeof(struct ipr_mode_pages));
7530 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7531 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7533 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7536 return IPR_RC_JOB_RETURN;
7540 * ipr_init_res_table - Initialize the resource table
7541 * @ipr_cmd: ipr command struct
7543 * This function looks through the existing resource table, comparing
7544 * it with the config table. This function will take care of old/new
7545 * devices and schedule adding/removing them from the mid-layer
7549 * IPR_RC_JOB_CONTINUE
7551 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7554 struct ipr_resource_entry *res, *temp;
7555 struct ipr_config_table_entry_wrapper cfgtew;
7556 int entries, found, flag, i;
7561 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7563 flag = ioa_cfg->u.cfg_table->hdr.flags;
7565 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7566 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7568 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7569 list_move_tail(&res->queue, &old_res);
7572 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7574 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7576 for (i = 0; i < entries; i++) {
7578 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7580 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7583 list_for_each_entry_safe(res, temp, &old_res, queue) {
7584 if (ipr_is_same_device(res, &cfgtew)) {
7585 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7592 if (list_empty(&ioa_cfg->free_res_q)) {
7593 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7598 res = list_entry(ioa_cfg->free_res_q.next,
7599 struct ipr_resource_entry, queue);
7600 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7601 ipr_init_res_entry(res, &cfgtew);
7603 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7604 res->sdev->allow_restart = 1;
7607 ipr_update_res_entry(res, &cfgtew);
7610 list_for_each_entry_safe(res, temp, &old_res, queue) {
7612 res->del_from_ml = 1;
7613 res->res_handle = IPR_INVALID_RES_HANDLE;
7614 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7618 list_for_each_entry_safe(res, temp, &old_res, queue) {
7619 ipr_clear_res_target(res);
7620 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7623 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7624 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7626 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7629 return IPR_RC_JOB_CONTINUE;
7633 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7634 * @ipr_cmd: ipr command struct
7636 * This function sends a Query IOA Configuration command
7637 * to the adapter to retrieve the IOA configuration table.
7642 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7644 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7645 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7646 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7647 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7650 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7651 ioa_cfg->dual_raid = 1;
7652 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7653 ucode_vpd->major_release, ucode_vpd->card_type,
7654 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7655 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7656 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7658 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7659 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7660 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7661 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7663 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7664 IPR_IOADL_FLAGS_READ_LAST);
7666 ipr_cmd->job_step = ipr_init_res_table;
7668 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7671 return IPR_RC_JOB_RETURN;
7675 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7676 * @ipr_cmd: ipr command struct
7678 * This utility function sends an inquiry to the adapter.
7683 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7684 dma_addr_t dma_addr, u8 xfer_len)
7686 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7689 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7690 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7692 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7693 ioarcb->cmd_pkt.cdb[1] = flags;
7694 ioarcb->cmd_pkt.cdb[2] = page;
7695 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7697 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7699 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7704 * ipr_inquiry_page_supported - Is the given inquiry page supported
7705 * @page0: inquiry page 0 buffer
7708 * This function determines if the specified inquiry page is supported.
7711 * 1 if page is supported / 0 if not
7713 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7717 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7718 if (page0->page[i] == page)
7725 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7726 * @ipr_cmd: ipr command struct
7728 * This function sends a Page 0xD0 inquiry to the adapter
7729 * to retrieve adapter capabilities.
7732 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7734 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7736 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7737 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7738 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7741 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7742 memset(cap, 0, sizeof(*cap));
7744 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7745 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7746 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7747 sizeof(struct ipr_inquiry_cap));
7748 return IPR_RC_JOB_RETURN;
7752 return IPR_RC_JOB_CONTINUE;
7756 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7757 * @ipr_cmd: ipr command struct
7759 * This function sends a Page 3 inquiry to the adapter
7760 * to retrieve software VPD information.
7763 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7765 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7767 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7771 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7773 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7774 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7775 sizeof(struct ipr_inquiry_page3));
7778 return IPR_RC_JOB_RETURN;
7782 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7783 * @ipr_cmd: ipr command struct
7785 * This function sends a Page 0 inquiry to the adapter
7786 * to retrieve supported inquiry pages.
7789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7791 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7798 /* Grab the type out of the VPD and store it away */
7799 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7801 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7803 if (ipr_invalid_adapter(ioa_cfg)) {
7804 dev_err(&ioa_cfg->pdev->dev,
7805 "Adapter not supported in this hardware configuration.\n");
7807 if (!ipr_testmode) {
7808 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7809 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7810 list_add_tail(&ipr_cmd->queue,
7811 &ioa_cfg->hrrq->hrrq_free_q);
7812 return IPR_RC_JOB_RETURN;
7816 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7818 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7819 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7820 sizeof(struct ipr_inquiry_page0));
7823 return IPR_RC_JOB_RETURN;
7827 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7828 * @ipr_cmd: ipr command struct
7830 * This function sends a standard inquiry to the adapter.
7835 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7837 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7840 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7842 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7843 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7844 sizeof(struct ipr_ioa_vpd));
7847 return IPR_RC_JOB_RETURN;
7851 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7852 * @ipr_cmd: ipr command struct
7854 * This function send an Identify Host Request Response Queue
7855 * command to establish the HRRQ with the adapter.
7860 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7862 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7863 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7864 struct ipr_hrr_queue *hrrq;
7867 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7868 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7870 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7871 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
7873 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7874 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7876 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7878 ioarcb->cmd_pkt.cdb[1] = 0x1;
7880 if (ioa_cfg->nvectors == 1)
7881 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7883 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7885 ioarcb->cmd_pkt.cdb[2] =
7886 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7887 ioarcb->cmd_pkt.cdb[3] =
7888 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7889 ioarcb->cmd_pkt.cdb[4] =
7890 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7891 ioarcb->cmd_pkt.cdb[5] =
7892 ((u64) hrrq->host_rrq_dma) & 0xff;
7893 ioarcb->cmd_pkt.cdb[7] =
7894 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7895 ioarcb->cmd_pkt.cdb[8] =
7896 (sizeof(u32) * hrrq->size) & 0xff;
7898 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7899 ioarcb->cmd_pkt.cdb[9] =
7900 ioa_cfg->identify_hrrq_index;
7902 if (ioa_cfg->sis64) {
7903 ioarcb->cmd_pkt.cdb[10] =
7904 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7905 ioarcb->cmd_pkt.cdb[11] =
7906 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7907 ioarcb->cmd_pkt.cdb[12] =
7908 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7909 ioarcb->cmd_pkt.cdb[13] =
7910 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7913 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7914 ioarcb->cmd_pkt.cdb[14] =
7915 ioa_cfg->identify_hrrq_index;
7917 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7918 IPR_INTERNAL_TIMEOUT);
7920 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7921 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7924 return IPR_RC_JOB_RETURN;
7928 return IPR_RC_JOB_CONTINUE;
7932 * ipr_reset_timer_done - Adapter reset timer function
7933 * @ipr_cmd: ipr command struct
7935 * Description: This function is used in adapter reset processing
7936 * for timing events. If the reset_cmd pointer in the IOA
7937 * config struct is not this adapter's we are doing nested
7938 * resets and fail_all_ops will take care of freeing the
7944 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7946 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7947 unsigned long lock_flags = 0;
7949 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7951 if (ioa_cfg->reset_cmd == ipr_cmd) {
7952 list_del(&ipr_cmd->queue);
7953 ipr_cmd->done(ipr_cmd);
7956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7960 * ipr_reset_start_timer - Start a timer for adapter reset job
7961 * @ipr_cmd: ipr command struct
7962 * @timeout: timeout value
7964 * Description: This function is used in adapter reset processing
7965 * for timing events. If the reset_cmd pointer in the IOA
7966 * config struct is not this adapter's we are doing nested
7967 * resets and fail_all_ops will take care of freeing the
7973 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7974 unsigned long timeout)
7978 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
7979 ipr_cmd->done = ipr_reset_ioa_job;
7981 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7982 ipr_cmd->timer.expires = jiffies + timeout;
7983 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7984 add_timer(&ipr_cmd->timer);
7988 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7989 * @ioa_cfg: ioa cfg struct
7994 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7996 struct ipr_hrr_queue *hrrq;
7998 for_each_hrrq(hrrq, ioa_cfg) {
7999 spin_lock(&hrrq->_lock);
8000 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8002 /* Initialize Host RRQ pointers */
8003 hrrq->hrrq_start = hrrq->host_rrq;
8004 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8005 hrrq->hrrq_curr = hrrq->hrrq_start;
8006 hrrq->toggle_bit = 1;
8007 spin_unlock(&hrrq->_lock);
8011 ioa_cfg->identify_hrrq_index = 0;
8012 if (ioa_cfg->hrrq_num == 1)
8013 atomic_set(&ioa_cfg->hrrq_index, 0);
8015 atomic_set(&ioa_cfg->hrrq_index, 1);
8017 /* Zero out config table */
8018 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8022 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8023 * @ipr_cmd: ipr command struct
8026 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8028 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8030 unsigned long stage, stage_time;
8032 volatile u32 int_reg;
8033 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8036 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8037 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8038 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8040 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8042 /* sanity check the stage_time value */
8043 if (stage_time == 0)
8044 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8045 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8046 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8047 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8048 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8050 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8051 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8052 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8053 stage_time = ioa_cfg->transop_timeout;
8054 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8055 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8056 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8057 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8058 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8059 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8060 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8061 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8062 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8063 return IPR_RC_JOB_CONTINUE;
8067 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8068 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8069 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8070 ipr_cmd->done = ipr_reset_ioa_job;
8071 add_timer(&ipr_cmd->timer);
8073 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8075 return IPR_RC_JOB_RETURN;
8079 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8080 * @ipr_cmd: ipr command struct
8082 * This function reinitializes some control blocks and
8083 * enables destructive diagnostics on the adapter.
8088 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8091 volatile u32 int_reg;
8092 volatile u64 maskval;
8096 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8097 ipr_init_ioa_mem(ioa_cfg);
8099 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8100 spin_lock(&ioa_cfg->hrrq[i]._lock);
8101 ioa_cfg->hrrq[i].allow_interrupts = 1;
8102 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8105 if (ioa_cfg->sis64) {
8106 /* Set the adapter to the correct endian mode. */
8107 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8108 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8111 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8113 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8114 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8115 ioa_cfg->regs.clr_interrupt_mask_reg32);
8116 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8117 return IPR_RC_JOB_CONTINUE;
8120 /* Enable destructive diagnostics on IOA */
8121 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8123 if (ioa_cfg->sis64) {
8124 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8125 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8126 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8128 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8130 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8132 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8134 if (ioa_cfg->sis64) {
8135 ipr_cmd->job_step = ipr_reset_next_stage;
8136 return IPR_RC_JOB_CONTINUE;
8139 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8140 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8141 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8142 ipr_cmd->done = ipr_reset_ioa_job;
8143 add_timer(&ipr_cmd->timer);
8144 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8147 return IPR_RC_JOB_RETURN;
8151 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8152 * @ipr_cmd: ipr command struct
8154 * This function is invoked when an adapter dump has run out
8155 * of processing time.
8158 * IPR_RC_JOB_CONTINUE
8160 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8162 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8164 if (ioa_cfg->sdt_state == GET_DUMP)
8165 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8166 else if (ioa_cfg->sdt_state == READ_DUMP)
8167 ioa_cfg->sdt_state = ABORT_DUMP;
8169 ioa_cfg->dump_timeout = 1;
8170 ipr_cmd->job_step = ipr_reset_alert;
8172 return IPR_RC_JOB_CONTINUE;
8176 * ipr_unit_check_no_data - Log a unit check/no data error log
8177 * @ioa_cfg: ioa config struct
8179 * Logs an error indicating the adapter unit checked, but for some
8180 * reason, we were unable to fetch the unit check buffer.
8185 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8187 ioa_cfg->errors_logged++;
8188 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8192 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8193 * @ioa_cfg: ioa config struct
8195 * Fetches the unit check buffer from the adapter by clocking the data
8196 * through the mailbox register.
8201 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8203 unsigned long mailbox;
8204 struct ipr_hostrcb *hostrcb;
8205 struct ipr_uc_sdt sdt;
8209 mailbox = readl(ioa_cfg->ioa_mailbox);
8211 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8212 ipr_unit_check_no_data(ioa_cfg);
8216 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8217 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8218 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8220 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8221 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8222 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8223 ipr_unit_check_no_data(ioa_cfg);
8227 /* Find length of the first sdt entry (UC buffer) */
8228 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8229 length = be32_to_cpu(sdt.entry[0].end_token);
8231 length = (be32_to_cpu(sdt.entry[0].end_token) -
8232 be32_to_cpu(sdt.entry[0].start_token)) &
8233 IPR_FMT2_MBX_ADDR_MASK;
8235 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8236 struct ipr_hostrcb, queue);
8237 list_del(&hostrcb->queue);
8238 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8240 rc = ipr_get_ldump_data_section(ioa_cfg,
8241 be32_to_cpu(sdt.entry[0].start_token),
8242 (__be32 *)&hostrcb->hcam,
8243 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8246 ipr_handle_log_data(ioa_cfg, hostrcb);
8247 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8248 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8249 ioa_cfg->sdt_state == GET_DUMP)
8250 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8252 ipr_unit_check_no_data(ioa_cfg);
8254 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8258 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8259 * @ipr_cmd: ipr command struct
8261 * Description: This function will call to get the unit check buffer.
8266 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8271 ioa_cfg->ioa_unit_checked = 0;
8272 ipr_get_unit_check_buffer(ioa_cfg);
8273 ipr_cmd->job_step = ipr_reset_alert;
8274 ipr_reset_start_timer(ipr_cmd, 0);
8277 return IPR_RC_JOB_RETURN;
8280 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8282 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8286 if (ioa_cfg->sdt_state != GET_DUMP)
8287 return IPR_RC_JOB_RETURN;
8289 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8290 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8291 IPR_PCII_MAILBOX_STABLE)) {
8293 if (!ipr_cmd->u.time_left)
8294 dev_err(&ioa_cfg->pdev->dev,
8295 "Timed out waiting for Mailbox register.\n");
8297 ioa_cfg->sdt_state = READ_DUMP;
8298 ioa_cfg->dump_timeout = 0;
8300 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8302 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8303 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8304 schedule_work(&ioa_cfg->work_q);
8307 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8308 ipr_reset_start_timer(ipr_cmd,
8309 IPR_CHECK_FOR_RESET_TIMEOUT);
8313 return IPR_RC_JOB_RETURN;
8317 * ipr_reset_restore_cfg_space - Restore PCI config space.
8318 * @ipr_cmd: ipr command struct
8320 * Description: This function restores the saved PCI config space of
8321 * the adapter, fails all outstanding ops back to the callers, and
8322 * fetches the dump/unit check if applicable to this reset.
8325 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8327 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8333 ioa_cfg->pdev->state_saved = true;
8334 pci_restore_state(ioa_cfg->pdev);
8336 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8337 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8338 return IPR_RC_JOB_CONTINUE;
8341 ipr_fail_all_ops(ioa_cfg);
8343 if (ioa_cfg->sis64) {
8344 /* Set the adapter to the correct endian mode. */
8345 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8346 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8349 if (ioa_cfg->ioa_unit_checked) {
8350 if (ioa_cfg->sis64) {
8351 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8352 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8353 return IPR_RC_JOB_RETURN;
8355 ioa_cfg->ioa_unit_checked = 0;
8356 ipr_get_unit_check_buffer(ioa_cfg);
8357 ipr_cmd->job_step = ipr_reset_alert;
8358 ipr_reset_start_timer(ipr_cmd, 0);
8359 return IPR_RC_JOB_RETURN;
8363 if (ioa_cfg->in_ioa_bringdown) {
8364 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8365 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8366 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8367 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8369 ipr_cmd->job_step = ipr_reset_enable_ioa;
8373 return IPR_RC_JOB_CONTINUE;
8377 * ipr_reset_bist_done - BIST has completed on the adapter.
8378 * @ipr_cmd: ipr command struct
8380 * Description: Unblock config space and resume the reset process.
8383 * IPR_RC_JOB_CONTINUE
8385 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8387 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8390 if (ioa_cfg->cfg_locked)
8391 pci_cfg_access_unlock(ioa_cfg->pdev);
8392 ioa_cfg->cfg_locked = 0;
8393 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8395 return IPR_RC_JOB_CONTINUE;
8399 * ipr_reset_start_bist - Run BIST on the adapter.
8400 * @ipr_cmd: ipr command struct
8402 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8405 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8407 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8409 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8410 int rc = PCIBIOS_SUCCESSFUL;
8413 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8414 writel(IPR_UPROCI_SIS64_START_BIST,
8415 ioa_cfg->regs.set_uproc_interrupt_reg32);
8417 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8419 if (rc == PCIBIOS_SUCCESSFUL) {
8420 ipr_cmd->job_step = ipr_reset_bist_done;
8421 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8422 rc = IPR_RC_JOB_RETURN;
8424 if (ioa_cfg->cfg_locked)
8425 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8426 ioa_cfg->cfg_locked = 0;
8427 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8428 rc = IPR_RC_JOB_CONTINUE;
8436 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8437 * @ipr_cmd: ipr command struct
8439 * Description: This clears PCI reset to the adapter and delays two seconds.
8444 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8447 ipr_cmd->job_step = ipr_reset_bist_done;
8448 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8450 return IPR_RC_JOB_RETURN;
8454 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8455 * @work: work struct
8457 * Description: This pulses warm reset to a slot.
8460 static void ipr_reset_reset_work(struct work_struct *work)
8462 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8464 struct pci_dev *pdev = ioa_cfg->pdev;
8465 unsigned long lock_flags = 0;
8468 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8469 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8470 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8472 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8473 if (ioa_cfg->reset_cmd == ipr_cmd)
8474 ipr_reset_ioa_job(ipr_cmd);
8475 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8480 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8481 * @ipr_cmd: ipr command struct
8483 * Description: This asserts PCI reset to the adapter.
8488 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8490 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8493 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8494 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8495 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8497 return IPR_RC_JOB_RETURN;
8501 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8502 * @ipr_cmd: ipr command struct
8504 * Description: This attempts to block config access to the IOA.
8507 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8509 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8511 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8512 int rc = IPR_RC_JOB_CONTINUE;
8514 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8515 ioa_cfg->cfg_locked = 1;
8516 ipr_cmd->job_step = ioa_cfg->reset;
8518 if (ipr_cmd->u.time_left) {
8519 rc = IPR_RC_JOB_RETURN;
8520 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8521 ipr_reset_start_timer(ipr_cmd,
8522 IPR_CHECK_FOR_RESET_TIMEOUT);
8524 ipr_cmd->job_step = ioa_cfg->reset;
8525 dev_err(&ioa_cfg->pdev->dev,
8526 "Timed out waiting to lock config access. Resetting anyway.\n");
8534 * ipr_reset_block_config_access - Block config access to the IOA
8535 * @ipr_cmd: ipr command struct
8537 * Description: This attempts to block config access to the IOA
8540 * IPR_RC_JOB_CONTINUE
8542 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8544 ipr_cmd->ioa_cfg->cfg_locked = 0;
8545 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8546 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8547 return IPR_RC_JOB_CONTINUE;
8551 * ipr_reset_allowed - Query whether or not IOA can be reset
8552 * @ioa_cfg: ioa config struct
8555 * 0 if reset not allowed / non-zero if reset is allowed
8557 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8559 volatile u32 temp_reg;
8561 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8562 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8566 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8567 * @ipr_cmd: ipr command struct
8569 * Description: This function waits for adapter permission to run BIST,
8570 * then runs BIST. If the adapter does not give permission after a
8571 * reasonable time, we will reset the adapter anyway. The impact of
8572 * resetting the adapter without warning the adapter is the risk of
8573 * losing the persistent error log on the adapter. If the adapter is
8574 * reset while it is writing to the flash on the adapter, the flash
8575 * segment will have bad ECC and be zeroed.
8578 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8580 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8582 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8583 int rc = IPR_RC_JOB_RETURN;
8585 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8586 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8587 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8589 ipr_cmd->job_step = ipr_reset_block_config_access;
8590 rc = IPR_RC_JOB_CONTINUE;
8597 * ipr_reset_alert - Alert the adapter of a pending reset
8598 * @ipr_cmd: ipr command struct
8600 * Description: This function alerts the adapter that it will be reset.
8601 * If memory space is not currently enabled, proceed directly
8602 * to running BIST on the adapter. The timer must always be started
8603 * so we guarantee we do not run BIST from ipr_isr.
8608 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8610 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8615 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8617 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8618 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8619 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8620 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8622 ipr_cmd->job_step = ipr_reset_block_config_access;
8625 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8626 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8629 return IPR_RC_JOB_RETURN;
8633 * ipr_reset_quiesce_done - Complete IOA disconnect
8634 * @ipr_cmd: ipr command struct
8636 * Description: Freeze the adapter to complete quiesce processing
8639 * IPR_RC_JOB_CONTINUE
8641 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8643 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8646 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8647 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8649 return IPR_RC_JOB_CONTINUE;
8653 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8654 * @ipr_cmd: ipr command struct
8656 * Description: Ensure nothing is outstanding to the IOA and
8657 * proceed with IOA disconnect. Otherwise reset the IOA.
8660 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8662 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8664 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8665 struct ipr_cmnd *loop_cmd;
8666 struct ipr_hrr_queue *hrrq;
8667 int rc = IPR_RC_JOB_CONTINUE;
8671 ipr_cmd->job_step = ipr_reset_quiesce_done;
8673 for_each_hrrq(hrrq, ioa_cfg) {
8674 spin_lock(&hrrq->_lock);
8675 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8677 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8678 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8679 rc = IPR_RC_JOB_RETURN;
8682 spin_unlock(&hrrq->_lock);
8693 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8694 * @ipr_cmd: ipr command struct
8696 * Description: Cancel any oustanding HCAMs to the IOA.
8699 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8701 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8703 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8704 int rc = IPR_RC_JOB_CONTINUE;
8705 struct ipr_cmd_pkt *cmd_pkt;
8706 struct ipr_cmnd *hcam_cmd;
8707 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8710 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8712 if (!hrrq->ioa_is_dead) {
8713 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8714 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8715 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8718 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8719 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8720 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8721 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8722 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8723 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8724 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8725 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8726 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8727 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8728 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8729 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8730 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8731 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8733 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8734 IPR_CANCEL_TIMEOUT);
8736 rc = IPR_RC_JOB_RETURN;
8737 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8742 ipr_cmd->job_step = ipr_reset_alert;
8749 * ipr_reset_ucode_download_done - Microcode download completion
8750 * @ipr_cmd: ipr command struct
8752 * Description: This function unmaps the microcode download buffer.
8755 * IPR_RC_JOB_CONTINUE
8757 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8760 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8762 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
8763 sglist->num_sg, DMA_TO_DEVICE);
8765 ipr_cmd->job_step = ipr_reset_alert;
8766 return IPR_RC_JOB_CONTINUE;
8770 * ipr_reset_ucode_download - Download microcode to the adapter
8771 * @ipr_cmd: ipr command struct
8773 * Description: This function checks to see if it there is microcode
8774 * to download to the adapter. If there is, a download is performed.
8777 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8779 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8781 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8782 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8785 ipr_cmd->job_step = ipr_reset_alert;
8788 return IPR_RC_JOB_CONTINUE;
8790 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8791 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8792 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8793 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8794 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8795 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8796 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8799 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8801 ipr_build_ucode_ioadl(ipr_cmd, sglist);
8802 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8804 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8805 IPR_WRITE_BUFFER_TIMEOUT);
8808 return IPR_RC_JOB_RETURN;
8812 * ipr_reset_shutdown_ioa - Shutdown the adapter
8813 * @ipr_cmd: ipr command struct
8815 * Description: This function issues an adapter shutdown of the
8816 * specified type to the specified adapter as part of the
8817 * adapter reset job.
8820 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8822 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8825 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8826 unsigned long timeout;
8827 int rc = IPR_RC_JOB_CONTINUE;
8830 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8831 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8832 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
8833 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
8834 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8835 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8836 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8837 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8839 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8840 timeout = IPR_SHUTDOWN_TIMEOUT;
8841 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8842 timeout = IPR_INTERNAL_TIMEOUT;
8843 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8844 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
8846 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
8848 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8850 rc = IPR_RC_JOB_RETURN;
8851 ipr_cmd->job_step = ipr_reset_ucode_download;
8853 ipr_cmd->job_step = ipr_reset_alert;
8860 * ipr_reset_ioa_job - Adapter reset job
8861 * @ipr_cmd: ipr command struct
8863 * Description: This function is the job router for the adapter reset job.
8868 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8871 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8874 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8876 if (ioa_cfg->reset_cmd != ipr_cmd) {
8878 * We are doing nested adapter resets and this is
8879 * not the current reset job.
8881 list_add_tail(&ipr_cmd->queue,
8882 &ipr_cmd->hrrq->hrrq_free_q);
8886 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8887 rc = ipr_cmd->job_step_failed(ipr_cmd);
8888 if (rc == IPR_RC_JOB_RETURN)
8892 ipr_reinit_ipr_cmnd(ipr_cmd);
8893 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8894 rc = ipr_cmd->job_step(ipr_cmd);
8895 } while (rc == IPR_RC_JOB_CONTINUE);
8899 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8900 * @ioa_cfg: ioa config struct
8901 * @job_step: first job step of reset job
8902 * @shutdown_type: shutdown type
8904 * Description: This function will initiate the reset of the given adapter
8905 * starting at the selected job step.
8906 * If the caller needs to wait on the completion of the reset,
8907 * the caller must sleep on the reset_wait_q.
8912 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8913 int (*job_step) (struct ipr_cmnd *),
8914 enum ipr_shutdown_type shutdown_type)
8916 struct ipr_cmnd *ipr_cmd;
8919 ioa_cfg->in_reset_reload = 1;
8920 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8921 spin_lock(&ioa_cfg->hrrq[i]._lock);
8922 ioa_cfg->hrrq[i].allow_cmds = 0;
8923 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8926 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8927 scsi_block_requests(ioa_cfg->host);
8929 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8930 ioa_cfg->reset_cmd = ipr_cmd;
8931 ipr_cmd->job_step = job_step;
8932 ipr_cmd->u.shutdown_type = shutdown_type;
8934 ipr_reset_ioa_job(ipr_cmd);
8938 * ipr_initiate_ioa_reset - Initiate an adapter reset
8939 * @ioa_cfg: ioa config struct
8940 * @shutdown_type: shutdown type
8942 * Description: This function will initiate the reset of the given adapter.
8943 * If the caller needs to wait on the completion of the reset,
8944 * the caller must sleep on the reset_wait_q.
8949 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8950 enum ipr_shutdown_type shutdown_type)
8954 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8957 if (ioa_cfg->in_reset_reload) {
8958 if (ioa_cfg->sdt_state == GET_DUMP)
8959 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8960 else if (ioa_cfg->sdt_state == READ_DUMP)
8961 ioa_cfg->sdt_state = ABORT_DUMP;
8964 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8965 dev_err(&ioa_cfg->pdev->dev,
8966 "IOA taken offline - error recovery failed\n");
8968 ioa_cfg->reset_retries = 0;
8969 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8970 spin_lock(&ioa_cfg->hrrq[i]._lock);
8971 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8972 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8976 if (ioa_cfg->in_ioa_bringdown) {
8977 ioa_cfg->reset_cmd = NULL;
8978 ioa_cfg->in_reset_reload = 0;
8979 ipr_fail_all_ops(ioa_cfg);
8980 wake_up_all(&ioa_cfg->reset_wait_q);
8982 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8983 spin_unlock_irq(ioa_cfg->host->host_lock);
8984 scsi_unblock_requests(ioa_cfg->host);
8985 spin_lock_irq(ioa_cfg->host->host_lock);
8989 ioa_cfg->in_ioa_bringdown = 1;
8990 shutdown_type = IPR_SHUTDOWN_NONE;
8994 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8999 * ipr_reset_freeze - Hold off all I/O activity
9000 * @ipr_cmd: ipr command struct
9002 * Description: If the PCI slot is frozen, hold off all I/O
9003 * activity; then, as soon as the slot is available again,
9004 * initiate an adapter reset.
9006 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9008 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9011 /* Disallow new interrupts, avoid loop */
9012 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9013 spin_lock(&ioa_cfg->hrrq[i]._lock);
9014 ioa_cfg->hrrq[i].allow_interrupts = 0;
9015 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9018 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9019 ipr_cmd->done = ipr_reset_ioa_job;
9020 return IPR_RC_JOB_RETURN;
9024 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9025 * @pdev: PCI device struct
9027 * Description: This routine is called to tell us that the MMIO
9028 * access to the IOA has been restored
9030 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9032 unsigned long flags = 0;
9033 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9035 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9036 if (!ioa_cfg->probe_done)
9037 pci_save_state(pdev);
9038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9039 return PCI_ERS_RESULT_NEED_RESET;
9043 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9044 * @pdev: PCI device struct
9046 * Description: This routine is called to tell us that the PCI bus
9047 * is down. Can't do anything here, except put the device driver
9048 * into a holding pattern, waiting for the PCI bus to come back.
9050 static void ipr_pci_frozen(struct pci_dev *pdev)
9052 unsigned long flags = 0;
9053 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9055 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9056 if (ioa_cfg->probe_done)
9057 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9062 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9063 * @pdev: PCI device struct
9065 * Description: This routine is called by the pci error recovery
9066 * code after the PCI slot has been reset, just before we
9067 * should resume normal operations.
9069 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9071 unsigned long flags = 0;
9072 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9074 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9075 if (ioa_cfg->probe_done) {
9076 if (ioa_cfg->needs_warm_reset)
9077 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9079 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9082 wake_up_all(&ioa_cfg->eeh_wait_q);
9083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9084 return PCI_ERS_RESULT_RECOVERED;
9088 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9089 * @pdev: PCI device struct
9091 * Description: This routine is called when the PCI bus has
9092 * permanently failed.
9094 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9096 unsigned long flags = 0;
9097 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9100 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9101 if (ioa_cfg->probe_done) {
9102 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9103 ioa_cfg->sdt_state = ABORT_DUMP;
9104 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9105 ioa_cfg->in_ioa_bringdown = 1;
9106 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9107 spin_lock(&ioa_cfg->hrrq[i]._lock);
9108 ioa_cfg->hrrq[i].allow_cmds = 0;
9109 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9112 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9114 wake_up_all(&ioa_cfg->eeh_wait_q);
9115 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9119 * ipr_pci_error_detected - Called when a PCI error is detected.
9120 * @pdev: PCI device struct
9121 * @state: PCI channel state
9123 * Description: Called when a PCI error is detected.
9126 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9128 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9129 pci_channel_state_t state)
9132 case pci_channel_io_frozen:
9133 ipr_pci_frozen(pdev);
9134 return PCI_ERS_RESULT_CAN_RECOVER;
9135 case pci_channel_io_perm_failure:
9136 ipr_pci_perm_failure(pdev);
9137 return PCI_ERS_RESULT_DISCONNECT;
9142 return PCI_ERS_RESULT_NEED_RESET;
9146 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9147 * @ioa_cfg: ioa cfg struct
9149 * Description: This is the second phase of adapter intialization
9150 * This function takes care of initilizing the adapter to the point
9151 * where it can accept new commands.
9154 * 0 on success / -EIO on failure
9156 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9159 unsigned long host_lock_flags = 0;
9162 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9163 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9164 ioa_cfg->probe_done = 1;
9165 if (ioa_cfg->needs_hard_reset) {
9166 ioa_cfg->needs_hard_reset = 0;
9167 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9169 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9171 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9178 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9179 * @ioa_cfg: ioa config struct
9184 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9188 if (ioa_cfg->ipr_cmnd_list) {
9189 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9190 if (ioa_cfg->ipr_cmnd_list[i])
9191 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9192 ioa_cfg->ipr_cmnd_list[i],
9193 ioa_cfg->ipr_cmnd_list_dma[i]);
9195 ioa_cfg->ipr_cmnd_list[i] = NULL;
9199 if (ioa_cfg->ipr_cmd_pool)
9200 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9202 kfree(ioa_cfg->ipr_cmnd_list);
9203 kfree(ioa_cfg->ipr_cmnd_list_dma);
9204 ioa_cfg->ipr_cmnd_list = NULL;
9205 ioa_cfg->ipr_cmnd_list_dma = NULL;
9206 ioa_cfg->ipr_cmd_pool = NULL;
9210 * ipr_free_mem - Frees memory allocated for an adapter
9211 * @ioa_cfg: ioa cfg struct
9216 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9220 kfree(ioa_cfg->res_entries);
9221 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9222 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9223 ipr_free_cmd_blks(ioa_cfg);
9225 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9226 dma_free_coherent(&ioa_cfg->pdev->dev,
9227 sizeof(u32) * ioa_cfg->hrrq[i].size,
9228 ioa_cfg->hrrq[i].host_rrq,
9229 ioa_cfg->hrrq[i].host_rrq_dma);
9231 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9232 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9234 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9235 dma_free_coherent(&ioa_cfg->pdev->dev,
9236 sizeof(struct ipr_hostrcb),
9237 ioa_cfg->hostrcb[i],
9238 ioa_cfg->hostrcb_dma[i]);
9241 ipr_free_dump(ioa_cfg);
9242 kfree(ioa_cfg->trace);
9246 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9247 * @ioa_cfg: ipr cfg struct
9249 * This function frees all allocated IRQs for the
9250 * specified adapter.
9255 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9257 struct pci_dev *pdev = ioa_cfg->pdev;
9259 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9260 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9262 for (i = 0; i < ioa_cfg->nvectors; i++)
9263 free_irq(ioa_cfg->vectors_info[i].vec,
9266 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9268 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9269 pci_disable_msi(pdev);
9270 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9271 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9272 pci_disable_msix(pdev);
9273 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9278 * ipr_free_all_resources - Free all allocated resources for an adapter.
9279 * @ipr_cmd: ipr command struct
9281 * This function frees all allocated resources for the
9282 * specified adapter.
9287 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9289 struct pci_dev *pdev = ioa_cfg->pdev;
9292 ipr_free_irqs(ioa_cfg);
9293 if (ioa_cfg->reset_work_q)
9294 destroy_workqueue(ioa_cfg->reset_work_q);
9295 iounmap(ioa_cfg->hdw_dma_regs);
9296 pci_release_regions(pdev);
9297 ipr_free_mem(ioa_cfg);
9298 scsi_host_put(ioa_cfg->host);
9299 pci_disable_device(pdev);
9304 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9305 * @ioa_cfg: ioa config struct
9308 * 0 on success / -ENOMEM on allocation failure
9310 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9312 struct ipr_cmnd *ipr_cmd;
9313 struct ipr_ioarcb *ioarcb;
9314 dma_addr_t dma_addr;
9315 int i, entries_each_hrrq, hrrq_id = 0;
9317 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9318 sizeof(struct ipr_cmnd), 512, 0);
9320 if (!ioa_cfg->ipr_cmd_pool)
9323 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9324 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9326 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9327 ipr_free_cmd_blks(ioa_cfg);
9331 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9332 if (ioa_cfg->hrrq_num > 1) {
9334 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9335 ioa_cfg->hrrq[i].min_cmd_id = 0;
9336 ioa_cfg->hrrq[i].max_cmd_id =
9337 (entries_each_hrrq - 1);
9340 IPR_NUM_BASE_CMD_BLKS/
9341 (ioa_cfg->hrrq_num - 1);
9342 ioa_cfg->hrrq[i].min_cmd_id =
9343 IPR_NUM_INTERNAL_CMD_BLKS +
9344 (i - 1) * entries_each_hrrq;
9345 ioa_cfg->hrrq[i].max_cmd_id =
9346 (IPR_NUM_INTERNAL_CMD_BLKS +
9347 i * entries_each_hrrq - 1);
9350 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9351 ioa_cfg->hrrq[i].min_cmd_id = 0;
9352 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9354 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9357 BUG_ON(ioa_cfg->hrrq_num == 0);
9359 i = IPR_NUM_CMD_BLKS -
9360 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9362 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9363 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9366 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9367 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9370 ipr_free_cmd_blks(ioa_cfg);
9374 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9375 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9376 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9378 ioarcb = &ipr_cmd->ioarcb;
9379 ipr_cmd->dma_addr = dma_addr;
9381 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9383 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9385 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9386 if (ioa_cfg->sis64) {
9387 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9388 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9389 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9390 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9392 ioarcb->write_ioadl_addr =
9393 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9394 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9395 ioarcb->ioasa_host_pci_addr =
9396 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9398 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9399 ipr_cmd->cmd_index = i;
9400 ipr_cmd->ioa_cfg = ioa_cfg;
9401 ipr_cmd->sense_buffer_dma = dma_addr +
9402 offsetof(struct ipr_cmnd, sense_buffer);
9404 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9405 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9406 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9407 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9415 * ipr_alloc_mem - Allocate memory for an adapter
9416 * @ioa_cfg: ioa config struct
9419 * 0 on success / non-zero for error
9421 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9423 struct pci_dev *pdev = ioa_cfg->pdev;
9424 int i, rc = -ENOMEM;
9427 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9428 ioa_cfg->max_devs_supported, GFP_KERNEL);
9430 if (!ioa_cfg->res_entries)
9433 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9434 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9435 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9438 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9439 sizeof(struct ipr_misc_cbs),
9440 &ioa_cfg->vpd_cbs_dma,
9443 if (!ioa_cfg->vpd_cbs)
9444 goto out_free_res_entries;
9446 if (ipr_alloc_cmd_blks(ioa_cfg))
9447 goto out_free_vpd_cbs;
9449 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9450 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9451 sizeof(u32) * ioa_cfg->hrrq[i].size,
9452 &ioa_cfg->hrrq[i].host_rrq_dma,
9455 if (!ioa_cfg->hrrq[i].host_rrq) {
9457 dma_free_coherent(&pdev->dev,
9458 sizeof(u32) * ioa_cfg->hrrq[i].size,
9459 ioa_cfg->hrrq[i].host_rrq,
9460 ioa_cfg->hrrq[i].host_rrq_dma);
9461 goto out_ipr_free_cmd_blocks;
9463 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9466 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9467 ioa_cfg->cfg_table_size,
9468 &ioa_cfg->cfg_table_dma,
9471 if (!ioa_cfg->u.cfg_table)
9472 goto out_free_host_rrq;
9474 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9475 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9476 sizeof(struct ipr_hostrcb),
9477 &ioa_cfg->hostrcb_dma[i],
9480 if (!ioa_cfg->hostrcb[i])
9481 goto out_free_hostrcb_dma;
9483 ioa_cfg->hostrcb[i]->hostrcb_dma =
9484 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9485 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9486 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9489 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9490 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9492 if (!ioa_cfg->trace)
9493 goto out_free_hostrcb_dma;
9500 out_free_hostrcb_dma:
9502 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9503 ioa_cfg->hostrcb[i],
9504 ioa_cfg->hostrcb_dma[i]);
9506 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9507 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9509 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9510 dma_free_coherent(&pdev->dev,
9511 sizeof(u32) * ioa_cfg->hrrq[i].size,
9512 ioa_cfg->hrrq[i].host_rrq,
9513 ioa_cfg->hrrq[i].host_rrq_dma);
9515 out_ipr_free_cmd_blocks:
9516 ipr_free_cmd_blks(ioa_cfg);
9518 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9519 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9520 out_free_res_entries:
9521 kfree(ioa_cfg->res_entries);
9526 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9527 * @ioa_cfg: ioa config struct
9532 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9536 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9537 ioa_cfg->bus_attr[i].bus = i;
9538 ioa_cfg->bus_attr[i].qas_enabled = 0;
9539 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9540 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9541 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9543 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9548 * ipr_init_regs - Initialize IOA registers
9549 * @ioa_cfg: ioa config struct
9554 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9556 const struct ipr_interrupt_offsets *p;
9557 struct ipr_interrupts *t;
9560 p = &ioa_cfg->chip_cfg->regs;
9562 base = ioa_cfg->hdw_dma_regs;
9564 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9565 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9566 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9567 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9568 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9569 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9570 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9571 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9572 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9573 t->ioarrin_reg = base + p->ioarrin_reg;
9574 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9575 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9576 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9577 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9578 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9579 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9581 if (ioa_cfg->sis64) {
9582 t->init_feedback_reg = base + p->init_feedback_reg;
9583 t->dump_addr_reg = base + p->dump_addr_reg;
9584 t->dump_data_reg = base + p->dump_data_reg;
9585 t->endian_swap_reg = base + p->endian_swap_reg;
9590 * ipr_init_ioa_cfg - Initialize IOA config struct
9591 * @ioa_cfg: ioa config struct
9592 * @host: scsi host struct
9593 * @pdev: PCI dev struct
9598 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9599 struct Scsi_Host *host, struct pci_dev *pdev)
9603 ioa_cfg->host = host;
9604 ioa_cfg->pdev = pdev;
9605 ioa_cfg->log_level = ipr_log_level;
9606 ioa_cfg->doorbell = IPR_DOORBELL;
9607 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9608 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9609 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9610 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9611 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9612 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9614 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9615 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9616 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9617 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9618 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9619 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9620 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9621 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9622 ioa_cfg->sdt_state = INACTIVE;
9624 ipr_initialize_bus_attr(ioa_cfg);
9625 ioa_cfg->max_devs_supported = ipr_max_devs;
9627 if (ioa_cfg->sis64) {
9628 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9629 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9630 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9631 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9632 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9633 + ((sizeof(struct ipr_config_table_entry64)
9634 * ioa_cfg->max_devs_supported)));
9636 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9637 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9638 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9639 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9640 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9641 + ((sizeof(struct ipr_config_table_entry)
9642 * ioa_cfg->max_devs_supported)));
9645 host->max_channel = IPR_VSET_BUS;
9646 host->unique_id = host->host_no;
9647 host->max_cmd_len = IPR_MAX_CDB_LEN;
9648 host->can_queue = ioa_cfg->max_cmds;
9649 pci_set_drvdata(pdev, ioa_cfg);
9651 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9652 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9653 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9654 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9656 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9658 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9663 * ipr_get_chip_info - Find adapter chip information
9664 * @dev_id: PCI device id struct
9667 * ptr to chip information on success / NULL on failure
9669 static const struct ipr_chip_t *
9670 ipr_get_chip_info(const struct pci_device_id *dev_id)
9674 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9675 if (ipr_chip[i].vendor == dev_id->vendor &&
9676 ipr_chip[i].device == dev_id->device)
9677 return &ipr_chip[i];
9682 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9684 * @ioa_cfg: ioa config struct
9689 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9691 struct pci_dev *pdev = ioa_cfg->pdev;
9693 if (pci_channel_offline(pdev)) {
9694 wait_event_timeout(ioa_cfg->eeh_wait_q,
9695 !pci_channel_offline(pdev),
9696 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9697 pci_restore_state(pdev);
9701 static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9703 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9706 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9707 entries[i].entry = i;
9709 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9710 entries, 1, ipr_number_of_msix);
9712 ipr_wait_for_pci_err_recovery(ioa_cfg);
9716 for (i = 0; i < vectors; i++)
9717 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9718 ioa_cfg->nvectors = vectors;
9723 static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9727 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9729 ipr_wait_for_pci_err_recovery(ioa_cfg);
9733 for (i = 0; i < vectors; i++)
9734 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9735 ioa_cfg->nvectors = vectors;
9740 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9742 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9744 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9745 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9746 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9747 ioa_cfg->vectors_info[vec_idx].
9748 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9752 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9756 for (i = 1; i < ioa_cfg->nvectors; i++) {
9757 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9760 ioa_cfg->vectors_info[i].desc,
9764 free_irq(ioa_cfg->vectors_info[i].vec,
9773 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9774 * @pdev: PCI device struct
9776 * Description: Simply set the msi_received flag to 1 indicating that
9777 * Message Signaled Interrupts are supported.
9780 * 0 on success / non-zero on failure
9782 static irqreturn_t ipr_test_intr(int irq, void *devp)
9784 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9785 unsigned long lock_flags = 0;
9786 irqreturn_t rc = IRQ_HANDLED;
9788 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
9789 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9791 ioa_cfg->msi_received = 1;
9792 wake_up(&ioa_cfg->msi_wait_q);
9794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9799 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9800 * @pdev: PCI device struct
9802 * Description: The return value from pci_enable_msi_range() can not always be
9803 * trusted. This routine sets up and initiates a test interrupt to determine
9804 * if the interrupt is received via the ipr_test_intr() service routine.
9805 * If the tests fails, the driver will fall back to LSI.
9808 * 0 on success / non-zero on failure
9810 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
9813 volatile u32 int_reg;
9814 unsigned long lock_flags = 0;
9818 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9819 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9820 ioa_cfg->msi_received = 0;
9821 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9822 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
9823 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9824 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9826 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9827 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9829 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9831 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9833 } else if (ipr_debug)
9834 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9836 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
9837 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9838 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
9839 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9840 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9842 if (!ioa_cfg->msi_received) {
9843 /* MSI test failed */
9844 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9846 } else if (ipr_debug)
9847 dev_info(&pdev->dev, "MSI test succeeded.\n");
9849 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9851 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9852 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9854 free_irq(pdev->irq, ioa_cfg);
9861 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
9862 * @pdev: PCI device struct
9863 * @dev_id: PCI device id struct
9866 * 0 on success / non-zero on failure
9868 static int ipr_probe_ioa(struct pci_dev *pdev,
9869 const struct pci_device_id *dev_id)
9871 struct ipr_ioa_cfg *ioa_cfg;
9872 struct Scsi_Host *host;
9873 unsigned long ipr_regs_pci;
9874 void __iomem *ipr_regs;
9875 int rc = PCIBIOS_SUCCESSFUL;
9876 volatile u32 mask, uproc, interrupts;
9877 unsigned long lock_flags, driver_lock_flags;
9881 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
9882 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9885 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9890 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9891 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
9892 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
9894 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
9896 if (!ioa_cfg->ipr_chip) {
9897 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9898 dev_id->vendor, dev_id->device);
9899 goto out_scsi_host_put;
9902 /* set SIS 32 or SIS 64 */
9903 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
9904 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
9905 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
9906 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
9908 if (ipr_transop_timeout)
9909 ioa_cfg->transop_timeout = ipr_transop_timeout;
9910 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9911 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9913 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9915 ioa_cfg->revid = pdev->revision;
9917 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9919 ipr_regs_pci = pci_resource_start(pdev, 0);
9921 rc = pci_request_regions(pdev, IPR_NAME);
9924 "Couldn't register memory range of registers\n");
9925 goto out_scsi_host_put;
9928 rc = pci_enable_device(pdev);
9930 if (rc || pci_channel_offline(pdev)) {
9931 if (pci_channel_offline(pdev)) {
9932 ipr_wait_for_pci_err_recovery(ioa_cfg);
9933 rc = pci_enable_device(pdev);
9937 dev_err(&pdev->dev, "Cannot enable adapter\n");
9938 ipr_wait_for_pci_err_recovery(ioa_cfg);
9939 goto out_release_regions;
9943 ipr_regs = pci_ioremap_bar(pdev, 0);
9947 "Couldn't map memory range of registers\n");
9952 ioa_cfg->hdw_dma_regs = ipr_regs;
9953 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9954 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9956 ipr_init_regs(ioa_cfg);
9958 if (ioa_cfg->sis64) {
9959 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9961 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9962 rc = dma_set_mask_and_coherent(&pdev->dev,
9966 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9969 dev_err(&pdev->dev, "Failed to set DMA mask\n");
9973 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9974 ioa_cfg->chip_cfg->cache_line_size);
9976 if (rc != PCIBIOS_SUCCESSFUL) {
9977 dev_err(&pdev->dev, "Write of cache line size failed\n");
9978 ipr_wait_for_pci_err_recovery(ioa_cfg);
9983 /* Issue MMIO read to ensure card is not in EEH */
9984 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9985 ipr_wait_for_pci_err_recovery(ioa_cfg);
9987 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9988 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9989 IPR_MAX_MSIX_VECTORS);
9990 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9993 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
9994 ipr_enable_msix(ioa_cfg) == 0)
9995 ioa_cfg->intr_flag = IPR_USE_MSIX;
9996 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
9997 ipr_enable_msi(ioa_cfg) == 0)
9998 ioa_cfg->intr_flag = IPR_USE_MSI;
10000 ioa_cfg->intr_flag = IPR_USE_LSI;
10001 ioa_cfg->nvectors = 1;
10002 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10005 pci_set_master(pdev);
10007 if (pci_channel_offline(pdev)) {
10008 ipr_wait_for_pci_err_recovery(ioa_cfg);
10009 pci_set_master(pdev);
10010 if (pci_channel_offline(pdev)) {
10012 goto out_msi_disable;
10016 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10017 ioa_cfg->intr_flag == IPR_USE_MSIX) {
10018 rc = ipr_test_msi(ioa_cfg, pdev);
10019 if (rc == -EOPNOTSUPP) {
10020 ipr_wait_for_pci_err_recovery(ioa_cfg);
10021 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10022 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10023 pci_disable_msi(pdev);
10024 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10025 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10026 pci_disable_msix(pdev);
10029 ioa_cfg->intr_flag = IPR_USE_LSI;
10030 ioa_cfg->nvectors = 1;
10033 goto out_msi_disable;
10035 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10036 dev_info(&pdev->dev,
10037 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10038 ioa_cfg->nvectors, pdev->irq);
10039 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10040 dev_info(&pdev->dev,
10041 "Request for %d MSIXs succeeded.",
10042 ioa_cfg->nvectors);
10046 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10047 (unsigned int)num_online_cpus(),
10048 (unsigned int)IPR_MAX_HRRQ_NUM);
10050 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10051 goto out_msi_disable;
10053 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10054 goto out_msi_disable;
10056 rc = ipr_alloc_mem(ioa_cfg);
10058 dev_err(&pdev->dev,
10059 "Couldn't allocate enough memory for device driver!\n");
10060 goto out_msi_disable;
10063 /* Save away PCI config space for use following IOA reset */
10064 rc = pci_save_state(pdev);
10066 if (rc != PCIBIOS_SUCCESSFUL) {
10067 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10069 goto cleanup_nolog;
10073 * If HRRQ updated interrupt is not masked, or reset alert is set,
10074 * the card is in an unknown state and needs a hard reset
10076 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10077 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10078 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10079 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10080 ioa_cfg->needs_hard_reset = 1;
10081 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10082 ioa_cfg->needs_hard_reset = 1;
10083 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10084 ioa_cfg->ioa_unit_checked = 1;
10086 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10087 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10088 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10090 if (ioa_cfg->intr_flag == IPR_USE_MSI
10091 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10092 name_msi_vectors(ioa_cfg);
10093 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10095 ioa_cfg->vectors_info[0].desc,
10096 &ioa_cfg->hrrq[0]);
10098 rc = ipr_request_other_msi_irqs(ioa_cfg);
10100 rc = request_irq(pdev->irq, ipr_isr,
10102 IPR_NAME, &ioa_cfg->hrrq[0]);
10105 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10107 goto cleanup_nolog;
10110 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10111 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10112 ioa_cfg->needs_warm_reset = 1;
10113 ioa_cfg->reset = ipr_reset_slot_reset;
10115 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10116 WQ_MEM_RECLAIM, host->host_no);
10118 if (!ioa_cfg->reset_work_q) {
10119 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10123 ioa_cfg->reset = ipr_reset_start_bist;
10125 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10126 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10127 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10134 ipr_free_irqs(ioa_cfg);
10136 ipr_free_mem(ioa_cfg);
10138 ipr_wait_for_pci_err_recovery(ioa_cfg);
10139 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10140 pci_disable_msi(pdev);
10141 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10142 pci_disable_msix(pdev);
10146 pci_disable_device(pdev);
10147 out_release_regions:
10148 pci_release_regions(pdev);
10150 scsi_host_put(host);
10155 * ipr_initiate_ioa_bringdown - Bring down an adapter
10156 * @ioa_cfg: ioa config struct
10157 * @shutdown_type: shutdown type
10159 * Description: This function will initiate bringing down the adapter.
10160 * This consists of issuing an IOA shutdown to the adapter
10161 * to flush the cache, and running BIST.
10162 * If the caller needs to wait on the completion of the reset,
10163 * the caller must sleep on the reset_wait_q.
10168 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10169 enum ipr_shutdown_type shutdown_type)
10172 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10173 ioa_cfg->sdt_state = ABORT_DUMP;
10174 ioa_cfg->reset_retries = 0;
10175 ioa_cfg->in_ioa_bringdown = 1;
10176 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10181 * __ipr_remove - Remove a single adapter
10182 * @pdev: pci device struct
10184 * Adapter hot plug remove entry point.
10189 static void __ipr_remove(struct pci_dev *pdev)
10191 unsigned long host_lock_flags = 0;
10192 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10194 unsigned long driver_lock_flags;
10197 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10198 while (ioa_cfg->in_reset_reload) {
10199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10200 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10201 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10204 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10205 spin_lock(&ioa_cfg->hrrq[i]._lock);
10206 ioa_cfg->hrrq[i].removing_ioa = 1;
10207 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10210 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10212 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10213 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10214 flush_work(&ioa_cfg->work_q);
10215 if (ioa_cfg->reset_work_q)
10216 flush_workqueue(ioa_cfg->reset_work_q);
10217 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10218 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10220 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10221 list_del(&ioa_cfg->queue);
10222 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10224 if (ioa_cfg->sdt_state == ABORT_DUMP)
10225 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10228 ipr_free_all_resources(ioa_cfg);
10234 * ipr_remove - IOA hot plug remove entry point
10235 * @pdev: pci device struct
10237 * Adapter hot plug remove entry point.
10242 static void ipr_remove(struct pci_dev *pdev)
10244 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10248 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10250 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10252 scsi_remove_host(ioa_cfg->host);
10254 __ipr_remove(pdev);
10260 * ipr_probe - Adapter hot plug add entry point
10263 * 0 on success / non-zero on failure
10265 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10267 struct ipr_ioa_cfg *ioa_cfg;
10270 rc = ipr_probe_ioa(pdev, dev_id);
10275 ioa_cfg = pci_get_drvdata(pdev);
10276 rc = ipr_probe_ioa_part2(ioa_cfg);
10279 __ipr_remove(pdev);
10283 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10286 __ipr_remove(pdev);
10290 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10294 scsi_remove_host(ioa_cfg->host);
10295 __ipr_remove(pdev);
10299 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10303 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10305 scsi_remove_host(ioa_cfg->host);
10306 __ipr_remove(pdev);
10310 scsi_scan_host(ioa_cfg->host);
10311 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10313 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10314 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10315 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10316 ioa_cfg->iopoll_weight, ipr_iopoll);
10317 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10321 schedule_work(&ioa_cfg->work_q);
10326 * ipr_shutdown - Shutdown handler.
10327 * @pdev: pci device struct
10329 * This function is invoked upon system shutdown/reboot. It will issue
10330 * an adapter shutdown to the adapter to flush the write cache.
10335 static void ipr_shutdown(struct pci_dev *pdev)
10337 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10338 unsigned long lock_flags = 0;
10339 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10343 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10344 ioa_cfg->iopoll_weight = 0;
10345 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10346 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10349 while (ioa_cfg->in_reset_reload) {
10350 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10351 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10352 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10355 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10356 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10358 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10360 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10361 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10362 ipr_free_irqs(ioa_cfg);
10363 pci_disable_device(ioa_cfg->pdev);
10367 static struct pci_device_id ipr_pci_table[] = {
10368 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10369 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10370 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10371 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10372 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10373 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10374 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10375 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10376 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10377 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10378 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10379 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10380 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10381 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10382 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10383 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10384 IPR_USE_LONG_TRANSOP_TIMEOUT },
10385 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10386 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10387 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10388 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10389 IPR_USE_LONG_TRANSOP_TIMEOUT },
10390 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10391 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10392 IPR_USE_LONG_TRANSOP_TIMEOUT },
10393 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10394 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10395 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10396 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10397 IPR_USE_LONG_TRANSOP_TIMEOUT},
10398 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10399 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10400 IPR_USE_LONG_TRANSOP_TIMEOUT },
10401 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10402 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10403 IPR_USE_LONG_TRANSOP_TIMEOUT },
10404 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10405 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10406 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10407 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10408 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10409 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10410 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10411 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10412 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10413 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10414 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10415 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10416 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10417 IPR_USE_LONG_TRANSOP_TIMEOUT },
10418 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10419 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10420 IPR_USE_LONG_TRANSOP_TIMEOUT },
10421 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10422 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10423 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10424 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10425 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10426 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10427 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10428 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10429 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10430 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10431 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10432 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10433 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10434 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10435 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10436 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10437 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10438 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10439 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10440 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10441 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10442 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10443 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10444 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10445 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10446 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10447 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10448 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10449 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10450 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10451 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10452 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10453 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10454 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10455 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10456 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10457 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10458 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10459 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10460 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10461 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10462 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10463 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10464 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10465 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10466 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10467 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10468 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10469 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10470 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10471 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10472 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10475 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10477 static const struct pci_error_handlers ipr_err_handler = {
10478 .error_detected = ipr_pci_error_detected,
10479 .mmio_enabled = ipr_pci_mmio_enabled,
10480 .slot_reset = ipr_pci_slot_reset,
10483 static struct pci_driver ipr_driver = {
10485 .id_table = ipr_pci_table,
10486 .probe = ipr_probe,
10487 .remove = ipr_remove,
10488 .shutdown = ipr_shutdown,
10489 .err_handler = &ipr_err_handler,
10493 * ipr_halt_done - Shutdown prepare completion
10498 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10500 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10504 * ipr_halt - Issue shutdown prepare to all adapters
10507 * NOTIFY_OK on success / NOTIFY_DONE on failure
10509 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10511 struct ipr_cmnd *ipr_cmd;
10512 struct ipr_ioa_cfg *ioa_cfg;
10513 unsigned long flags = 0, driver_lock_flags;
10515 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10516 return NOTIFY_DONE;
10518 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10520 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10521 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10522 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10523 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10524 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10528 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10529 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10530 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10531 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10532 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10534 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10535 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10537 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10542 static struct notifier_block ipr_notifier = {
10547 * ipr_init - Module entry point
10550 * 0 on success / negative value on failure
10552 static int __init ipr_init(void)
10554 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10555 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10557 register_reboot_notifier(&ipr_notifier);
10558 return pci_register_driver(&ipr_driver);
10562 * ipr_exit - Module unload
10564 * Module unload entry point.
10569 static void __exit ipr_exit(void)
10571 unregister_reboot_notifier(&ipr_notifier);
10572 pci_unregister_driver(&ipr_driver);
10575 module_init(ipr_init);
10576 module_exit(ipr_exit);