2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/slab.h>
63 #include <linux/vmalloc.h>
64 #include <linux/ioport.h>
65 #include <linux/delay.h>
66 #include <linux/pci.h>
67 #include <linux/wait.h>
68 #include <linux/spinlock.h>
69 #include <linux/sched.h>
70 #include <linux/interrupt.h>
71 #include <linux/blkdev.h>
72 #include <linux/firmware.h>
73 #include <linux/module.h>
74 #include <linux/moduleparam.h>
75 #include <linux/libata.h>
76 #include <linux/hdreg.h>
77 #include <linux/reboot.h>
78 #include <linux/stringify.h>
81 #include <asm/processor.h>
82 #include <scsi/scsi.h>
83 #include <scsi/scsi_host.h>
84 #include <scsi/scsi_tcq.h>
85 #include <scsi/scsi_eh.h>
86 #include <scsi/scsi_cmnd.h>
92 static LIST_HEAD(ipr_ioa_head);
93 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94 static unsigned int ipr_max_speed = 1;
95 static int ipr_testmode = 0;
96 static unsigned int ipr_fastfail = 0;
97 static unsigned int ipr_transop_timeout = 0;
98 static unsigned int ipr_debug = 0;
99 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
100 static unsigned int ipr_dual_ioa_raid = 1;
101 static unsigned int ipr_number_of_msix = 2;
102 static unsigned int ipr_fast_reboot;
103 static DEFINE_SPINLOCK(ipr_driver_lock);
105 /* This table describes the differences between DMA controller chips */
106 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
110 .cache_line_size = 0x20,
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
116 .clr_interrupt_mask_reg32 = 0x00230,
117 .sense_interrupt_mask_reg = 0x0022C,
118 .sense_interrupt_mask_reg32 = 0x0022C,
119 .clr_interrupt_reg = 0x00228,
120 .clr_interrupt_reg32 = 0x00228,
121 .sense_interrupt_reg = 0x00224,
122 .sense_interrupt_reg32 = 0x00224,
123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
125 .sense_uproc_interrupt_reg32 = 0x00214,
126 .set_uproc_interrupt_reg = 0x00214,
127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
132 { /* Snipe and Scamp */
135 .cache_line_size = 0x20,
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
141 .clr_interrupt_mask_reg32 = 0x0028C,
142 .sense_interrupt_mask_reg = 0x00288,
143 .sense_interrupt_mask_reg32 = 0x00288,
144 .clr_interrupt_reg = 0x00284,
145 .clr_interrupt_reg32 = 0x00284,
146 .sense_interrupt_reg = 0x00280,
147 .sense_interrupt_reg32 = 0x00280,
148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
150 .sense_uproc_interrupt_reg32 = 0x00290,
151 .set_uproc_interrupt_reg = 0x00290,
152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
160 .cache_line_size = 0x20,
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
166 .clr_interrupt_mask_reg32 = 0x0001C,
167 .sense_interrupt_mask_reg = 0x00010,
168 .sense_interrupt_mask_reg32 = 0x00014,
169 .clr_interrupt_reg = 0x00008,
170 .clr_interrupt_reg32 = 0x0000C,
171 .sense_interrupt_reg = 0x00000,
172 .sense_interrupt_reg32 = 0x00004,
173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
175 .sense_uproc_interrupt_reg32 = 0x00024,
176 .set_uproc_interrupt_reg = 0x00020,
177 .set_uproc_interrupt_reg32 = 0x00024,
178 .clr_uproc_interrupt_reg = 0x00028,
179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
181 .dump_addr_reg = 0x00064,
182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
188 static const struct ipr_chip_t ipr_chip[] = {
189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
200 static int ipr_max_bus_speeds[] = {
201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
204 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206 module_param_named(max_speed, ipr_max_speed, uint, 0);
207 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208 module_param_named(log_level, ipr_log_level, uint, 0);
209 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210 module_param_named(testmode, ipr_testmode, int, 0);
211 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
212 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
213 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
216 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
217 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
218 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
220 module_param_named(max_devs, ipr_max_devs, int, 0);
221 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
223 module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
224 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
225 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
227 MODULE_LICENSE("GPL");
228 MODULE_VERSION(IPR_DRIVER_VERSION);
230 /* A constant array of IOASCs/URCs/Error Messages */
232 struct ipr_error_table_t ipr_error_table[] = {
233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
234 "8155: An unknown error was received"},
236 "Soft underlength error"},
238 "Command to be cancelled not found"},
240 "Qualified success"},
241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
242 "FFFE: Soft device bus error recovered by the IOA"},
243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
244 "4101: Soft device bus fabric error"},
245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
260 "FFF9: Device sector reassign successful"},
261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFF7: Media error recovered by device rewrite procedures"},
263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
264 "7001: IOA sector reassignment successful"},
265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFF9: Soft media error. Sector reassignment recommended"},
267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF7: Media error recovered by IOA rewrite procedures"},
269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
270 "FF3D: Soft PCI bus error recovered by the IOA"},
271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
272 "FFF6: Device hardware error recovered by the IOA"},
273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
274 "FFF6: Device hardware error recovered by the device"},
275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
276 "FF3D: Soft IOA error recovered by the IOA"},
277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
278 "FFFA: Undefined device response recovered by the IOA"},
279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
280 "FFF6: Device bus error, message or command phase"},
281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
282 "FFFE: Task Management Function failed"},
283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
284 "FFF6: Failure prediction threshold exceeded"},
285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
286 "8009: Impending cache battery pack failure"},
288 "Logical Unit in process of becoming ready"},
290 "Initializing command required"},
292 "34FF: Disk device format in progress"},
294 "Logical unit not accessible, target port in unavailable state"},
295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
298 "Synchronization required"},
300 "IOA microcode download required"},
302 "Device bus connection is prohibited by host"},
304 "No ready, IOA shutdown"},
306 "Not ready, IOA has been shutdown"},
307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
308 "3020: Storage subsystem configuration error"},
310 "FFF5: Medium error, data unreadable, recommend reassign"},
312 "7000: Medium error, data unreadable, do not reassign"},
313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "FFF3: Disk media format bad"},
315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
316 "3002: Addressed device failed to respond to selection"},
317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
318 "3100: Device bus error"},
319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
320 "3109: IOA timed out a device command"},
322 "3120: SCSI bus is not operational"},
323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
324 "4100: Hard device bus fabric error"},
325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
340 "9000: IOA reserved area data check"},
341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
342 "9001: IOA reserved area invalid data pattern"},
343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
344 "9002: IOA reserved area LRC error"},
345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
348 "102E: Out of alternate sectors for disk storage"},
349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
350 "FFF4: Data transfer underlength error"},
351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
352 "FFF4: Data transfer overlength error"},
353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
354 "3400: Logical unit failure"},
355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
356 "FFF4: Device microcode is corrupt"},
357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
358 "8150: PCI bus error"},
360 "Unsupported device bus message received"},
361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "FFF4: Disk device problem"},
363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
364 "8150: Permanent IOA failure"},
365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
366 "3010: Disk device returned wrong response to IOA"},
367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
368 "8151: IOA microcode error"},
370 "Device bus status error"},
371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
372 "8157: IOA error requiring IOA reset to recover"},
374 "ATA device status error"},
376 "Message reject received from the device"},
377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
378 "8008: A permanent cache battery pack failure occurred"},
379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
380 "9090: Disk unit has been modified after the last known status"},
381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
382 "9081: IOA detected device error"},
383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
384 "9082: IOA detected device error"},
385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
386 "3110: Device bus error, message or command phase"},
387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
388 "3110: SAS Command / Task Management Function failed"},
389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
390 "9091: Incorrect hardware configuration change has been detected"},
391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
392 "9073: Invalid multi-adapter configuration"},
393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
394 "4010: Incorrect connection between cascaded expanders"},
395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
396 "4020: Connections exceed IOA design limits"},
397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
398 "4030: Incorrect multipath connection"},
399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
400 "4110: Unsupported enclosure function"},
401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFF4: Command to logical unit failed"},
406 "Illegal request, invalid request type or request packet"},
408 "Illegal request, invalid resource handle"},
410 "Illegal request, commands not allowed to this device"},
412 "Illegal request, command not allowed to a secondary adapter"},
414 "Illegal request, command not allowed to a non-optimized resource"},
416 "Illegal request, invalid field in parameter list"},
418 "Illegal request, parameter not supported"},
420 "Illegal request, parameter value invalid"},
422 "Illegal request, command sequence error"},
424 "Illegal request, dual adapter support not enabled"},
426 "Illegal request, another cable connector was physically disabled"},
428 "Illegal request, inconsistent group id/group count"},
429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9031: Array protection temporarily suspended, protection resuming"},
431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9040: Array protection temporarily suspended, protection resuming"},
433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
438 "3140: Device bus not ready to ready transition"},
439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
440 "FFFB: SCSI bus was reset"},
442 "FFFE: SCSI bus transition to single ended"},
444 "FFFE: SCSI bus transition to LVD"},
445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
446 "FFFB: SCSI bus was reset by another initiator"},
447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
448 "3029: A device replacement has occurred"},
449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
452 "9051: IOA cache data exists for a missing or failed device"},
453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
456 "9025: Disk unit is not supported at its physical location"},
457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
458 "3020: IOA detected a SCSI bus configuration error"},
459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
460 "3150: SCSI bus configuration error"},
461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9074: Asymmetric advanced function disk configuration"},
463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
464 "4040: Incomplete multipath connection between IOA and enclosure"},
465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
466 "4041: Incomplete multipath connection between enclosure and device"},
467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9075: Incomplete multipath connection between IOA and remote IOA"},
469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9076: Configuration error, missing remote IOA"},
471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
472 "4050: Enclosure does not support a required multipath function"},
473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9041: Array protection temporarily suspended"},
485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9042: Corrupt array parity detected on specified device"},
487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9030: Array no longer protected due to missing or failed disk unit"},
489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9071: Link operational transition"},
491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9072: Link not operational transition"},
493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9032: Array exposed but still protected"},
495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
498 "4061: Multipath redundancy level got better"},
499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
500 "4060: Multipath redundancy level got worse"},
501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
506 "Failure due to other device"},
507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
508 "9008: IOA does not support functions expected by devices"},
509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
510 "9010: Cache data associated with attached devices cannot be found"},
511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
512 "9011: Cache data belongs to devices other than those attached"},
513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
514 "9020: Array missing 2 or more devices with only 1 device present"},
515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
516 "9021: Array missing 2 or more devices with 2 or more devices present"},
517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
518 "9022: Exposed array is missing a required device"},
519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
520 "9023: Array member(s) not at required physical locations"},
521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
522 "9024: Array not functional due to present hardware configuration"},
523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
524 "9026: Array not functional due to present hardware configuration"},
525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
526 "9027: Array is missing a device and parity is out of sync"},
527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
528 "9028: Maximum number of arrays already exist"},
529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
530 "9050: Required cache data cannot be located for a disk unit"},
531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
532 "9052: Cache data exists for a device that has been modified"},
533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
534 "9054: IOA resources not available due to previous problems"},
535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
536 "9092: Disk unit requires initialization before use"},
537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
538 "9029: Incorrect hardware configuration change has been detected"},
539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
540 "9060: One or more disk pairs are missing from an array"},
541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
542 "9061: One or more disks are missing from an array"},
543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
544 "9062: One or more disks are missing from an array"},
545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
546 "9063: Maximum number of functional arrays has been exceeded"},
548 "Data protect, other volume set problem"},
550 "Aborted command, invalid descriptor"},
552 "Target operating conditions have changed, dual adapter takeover"},
554 "Aborted command, medium removal prevented"},
556 "Command terminated by host"},
558 "Aborted command, command terminated by host"}
561 static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
578 * Function Prototypes
580 static int ipr_reset_alert(struct ipr_cmnd *);
581 static void ipr_process_ccn(struct ipr_cmnd *);
582 static void ipr_process_error(struct ipr_cmnd *);
583 static void ipr_reset_ioa_job(struct ipr_cmnd *);
584 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
587 #ifdef CONFIG_SCSI_IPR_TRACE
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
592 * @add_data: additional data
597 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
602 unsigned int trace_index;
604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
619 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
629 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
646 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
657 ioarcb->data_transfer_length = 0;
658 ioarcb->read_data_transfer_length = 0;
659 ioarcb->ioadl_len = 0;
660 ioarcb->read_ioadl_len = 0;
662 if (ipr_cmd->ioa_cfg->sis64) {
663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
665 ioasa64->u.gata.status = 0;
667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
670 ioasa->u.gata.status = 0;
673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
675 ipr_cmd->scsi_cmd = NULL;
677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
688 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
694 ipr_cmd->eh_comp = NULL;
695 ipr_cmd->fast_done = fast_done;
696 init_timer(&ipr_cmd->timer);
700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
701 * @ioa_cfg: ioa config struct
704 * pointer to ipr command struct
707 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
709 struct ipr_cmnd *ipr_cmd = NULL;
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
726 * pointer to ipr command struct
729 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
748 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
751 volatile u32 int_reg;
754 /* Stop new interrupts */
755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
762 /* Set interrupt mask to stop all new interrupts */
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
768 /* Clear any pending interrupts */
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
780 * 0 on success / -EIO on failure
782 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
786 if (pcix_cmd_reg == 0)
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
804 * 0 on success / -EIO on failure
806 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
831 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
852 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
856 scsi_cmd->result |= (DID_ERROR << 16);
858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
859 scsi_cmd->scsi_done(scsi_cmd);
860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
869 * This function fails all outstanding ops.
874 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
876 struct ipr_cmnd *ipr_cmd, *temp;
877 struct ipr_hrr_queue *hrrq;
880 for_each_hrrq(hrrq, ioa_cfg) {
881 spin_lock(&hrrq->_lock);
882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
901 spin_unlock(&hrrq->_lock);
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
917 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
948 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
954 ipr_cmd->done = done;
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
960 add_timer(&ipr_cmd->timer);
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
964 ipr_send_command(ipr_cmd);
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
977 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
982 complete(&ipr_cmd->completion);
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
992 * This function initializes an ioadl in the case where there is only a single
998 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1004 ipr_cmd->dma_use_sg = 1;
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1039 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1053 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1057 if (ioa_cfg->hrrq_num == 1)
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1070 * @hostrcb: hostrcb struct
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1079 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1106 ipr_cmd->done = ipr_process_error;
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1110 ipr_send_command(ipr_cmd);
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1124 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1136 res->ata_class = ATA_DEV_UNKNOWN;
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
1144 * @cfgtew: config table entry wrapper struct
1149 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1157 res->needs_sync_complete = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
1162 res->reset_occurred = 0;
1164 res->sata_port = NULL;
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
1171 res->type = cfgtew->u.cfgte64->res_type;
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
1179 res->lun = scsilun_to_int(&res->dev_lun);
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1185 res->target = gscsi_res->target;
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1227 ipr_update_ata_class(res, proto);
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1236 * 1 if the devices are the same / 0 otherwise
1238 static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1245 sizeof(cfgtew->u.cfgte64->lun))) {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1259 * __ipr_format_res_path - Format the resource path for printing.
1260 * @res_path: resource path
1262 * @len: length of buffer provided
1267 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1285 * @len: length of buffer provided
1290 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1309 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1316 if (res->ioa_cfg->sis64) {
1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
1319 res->type = cfgtew->u.cfgte64->res_type;
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1358 ipr_update_ata_class(res, proto);
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1370 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1375 if (!ioa_cfg->sis64)
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1386 clear_bit(res->target, ioa_cfg->target_ids);
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1400 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1401 struct ipr_hostrcb *hostrcb)
1403 struct ipr_resource_entry *res = NULL;
1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1418 if (res->res_handle == cc_res_handle) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1435 list_del(&res->queue);
1436 ipr_init_res_entry(res, &cfgtew);
1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1440 ipr_update_res_entry(res, &cfgtew);
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1444 res->del_from_ml = 1;
1445 res->res_handle = IPR_INVALID_RES_HANDLE;
1446 schedule_work(&ioa_cfg->work_q);
1448 ipr_clear_res_target(res);
1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1451 } else if (!res->sdev || res->del_from_ml) {
1453 schedule_work(&ioa_cfg->work_q);
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1469 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1475 list_del(&hostrcb->queue);
1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1499 * new length of string
1501 static int strip_and_pad_whitespace(int i, char *buf)
1503 while (i && buf[i] == ' ')
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1519 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1538 * ipr_log_vpd - Log the passed VPD to the error log.
1539 * @vpd: vendor/product id/sn struct
1544 static void ipr_log_vpd(struct ipr_vpd *vpd)
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1569 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1584 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1599 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1602 struct ipr_hostrcb_type_12_error *error;
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1635 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
1643 ipr_log_vpd(&error->ioa_vpd);
1644 ipr_err("Adapter Card Information:\n");
1645 ipr_log_vpd(&error->cfc_vpd);
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1650 ipr_err("Adapter Card Information:\n");
1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1667 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1680 dev_entry = error->dev;
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1707 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1721 dev_entry = error->dev;
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1726 ipr_err("Device %d : %s", i + 1,
1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
1729 ipr_log_ext_vpd(&dev_entry->vpd);
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1750 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1763 dev_entry = error->dev;
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1769 ipr_log_vpd(&dev_entry->vpd);
1771 ipr_err("-----New Device Information-----\n");
1772 ipr_log_vpd(&dev_entry->new_vpd);
1774 ipr_err("Cache Directory Card Information:\n");
1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1777 ipr_err("Adapter Card Information:\n");
1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1797 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1820 ARRAY_SIZE(error->array_member));
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1829 ipr_err("Array Member %d:\n", i);
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1848 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1869 array_entry = error->array_member;
1871 for (i = 0; i < 18; i++) {
1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1876 ipr_err("Exposed Array Member %d:\n", i);
1878 ipr_err("Array Member %d:\n", i);
1880 ipr_log_vpd(&array_entry->vpd);
1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1889 array_entry = error->array_member2;
1896 * ipr_log_hex_data - Log additional hex IOA error data.
1897 * @ioa_cfg: ioa config struct
1898 * @data: IOA error data
1904 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1914 for (i = 0; i < len / 4; i += 4) {
1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1931 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1934 struct ipr_hostrcb_type_17_error *error;
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1942 strim(error->failure_reason);
1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1947 ipr_log_hex_data(ioa_cfg, error->data,
1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1961 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1964 struct ipr_hostrcb_type_07_error *error;
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1968 strim(error->failure_reason);
1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1973 ipr_log_hex_data(ioa_cfg, error->data,
1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1979 static const struct {
1982 } path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1988 static const struct {
1991 } path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2006 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2055 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
2074 ipr_format_res_path(hostrcb->ioa_cfg,
2076 buffer, sizeof(buffer)));
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
2086 static const struct {
2089 } path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2096 static const struct {
2099 } path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2108 static const char *link_rate[] = {
2111 "phy reset problem",
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2135 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2159 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2202 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2248 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2285 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
2305 array_entry = error->array_member;
2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2317 ipr_err("Array Member %d:\n", i);
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
2321 ipr_err("Current Location: %s\n",
2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
2324 ipr_err("Expected Location: %s\n",
2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2341 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2379 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2383 be32_to_cpu(hostrcb->hcam.length));
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2394 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2431 * index into the ipr_error_table
2433 static u32 ipr_get_error(u32 ioasc)
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2449 * This function logs an adapter error to the system.
2454 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2459 struct ipr_hostrcb_type_21_error *error;
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
2476 hostrcb->hcam.u.error.fd_res_addr.bus);
2479 error_index = ipr_get_error(ioasc);
2481 if (!ipr_error_table[error_index].log_hcam)
2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2503 switch (hostrcb->hcam.overlay_id) {
2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2546 case IPR_HOST_RCB_OVERLAY_ID_1:
2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2549 ipr_log_generic_error(ioa_cfg, hostrcb);
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2565 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2577 list_del(&hostrcb->queue);
2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2597 * This function blocks host requests and initiates an
2603 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2629 * This function blocks host requests and initiates an
2635 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2665 * pointer to SES table entry / NULL on failure
2667 static const struct ipr_ses_table_entry *
2668 ipr_find_ses_entry(struct ipr_resource_entry *res)
2671 struct ipr_std_inq_vpids *vpids;
2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
2686 if (matches == IPR_PROD_ID_LEN)
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2697 * @bus_width: bus width
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2705 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2716 if (bus != res->bus)
2719 if (!(ste = ipr_find_ses_entry(res)))
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2725 return max_xfer_rate;
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2736 * 0 on success / other on failure
2738 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2740 volatile u32 pcii_reg;
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2771 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2773 __be32 *dest, u32 length_in_words)
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2794 * 0 on success / -EIO on failure
2796 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2798 __be32 *dest, u32 length_in_words)
2800 volatile u32 temp_pcii_reg;
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2877 #ifdef CONFIG_SCSI_IPR_DUMP
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2887 * 0 on success / other on failure
2889 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2892 int bytes_copied = 0;
2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2903 while (bytes_copied < length &&
2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2911 return bytes_copied;
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2945 return bytes_copied;
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2955 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2971 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2997 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3018 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3039 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
3049 driver_dump->hdr.num_entries++;
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3060 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
3068 struct ipr_sdt *sdt;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state != READ_DUMP) {
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
3139 bytes_to_copy / sizeof(__be32));
3141 /* Smart Dump table is ready to use and the first entry is valid */
3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3167 for (i = 0; i < num_entries; i++) {
3168 if (ioa_dump->hdr.len > max_dump_size) {
3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3187 if (bytes_to_copy > max_dump_size) {
3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3196 ioa_dump->hdr.len += bytes_copied;
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3216 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3226 static void ipr_release_dump(struct kref *kref)
3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3242 vfree(dump->ioa_dump.ioa_data);
3248 * ipr_worker_thread - Worker thread
3249 * @work: ioa config struct
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3258 static void ipr_worker_thread(struct work_struct *work)
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
3266 u8 bus, target, lun;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3272 if (ioa_cfg->sdt_state == READ_DUMP) {
3273 dump = ioa_cfg->dump;
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3302 if (!scsi_device_get(sdev)) {
3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3306 res->del_from_ml = 0;
3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3320 target = res->target;
3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3330 ioa_cfg->scan_done = 1;
3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3336 #ifdef CONFIG_SCSI_IPR_TRACE
3338 * ipr_read_trace - Dump the adapter trace
3339 * @filp: open sysfs file
3340 * @kobj: kobject struct
3341 * @bin_attr: bin_attribute struct
3344 * @count: buffer size
3347 * number of bytes printed to buffer
3349 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3367 static struct bin_attribute ipr_trace_attr = {
3373 .read = ipr_read_trace,
3378 * ipr_show_fw_version - Show the firmware version
3379 * @dev: class device struct
3383 * number of bytes printed to buffer
3385 static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
3388 struct Scsi_Host *shost = class_to_shost(dev);
3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3403 static struct device_attribute ipr_fw_version_attr = {
3405 .name = "fw_version",
3408 .show = ipr_show_fw_version,
3412 * ipr_show_log_level - Show the adapter's error logging level
3413 * @dev: class device struct
3417 * number of bytes printed to buffer
3419 static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
3422 struct Scsi_Host *shost = class_to_shost(dev);
3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3434 * ipr_store_log_level - Change the adapter's error logging level
3435 * @dev: class device struct
3439 * number of bytes printed to buffer
3441 static ssize_t ipr_store_log_level(struct device *dev,
3442 struct device_attribute *attr,
3443 const char *buf, size_t count)
3445 struct Scsi_Host *shost = class_to_shost(dev);
3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3455 static struct device_attribute ipr_log_level_attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3465 * ipr_store_diagnostics - IOA Diagnostics interface
3466 * @dev: device struct
3468 * @count: buffer size
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3474 * count on success / other on failure
3476 static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
3478 const char *buf, size_t count)
3480 struct Scsi_Host *shost = class_to_shost(dev);
3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3485 if (!capable(CAP_SYS_ADMIN))
3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3489 while (ioa_cfg->in_reset_reload) {
3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3502 /* Wait for a second for any errors to be logged */
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3517 static struct device_attribute ipr_diagnostics_attr = {
3519 .name = "run_diagnostics",
3522 .store = ipr_store_diagnostics
3526 * ipr_show_adapter_state - Show the adapter's state
3527 * @class_dev: device struct
3531 * number of bytes printed to buffer
3533 static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
3536 struct Scsi_Host *shost = class_to_shost(dev);
3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3551 * ipr_store_adapter_state - Change adapter state
3552 * @dev: device struct
3554 * @count: buffer size
3556 * This function will change the adapter's state.
3559 * count on success / other on failure
3561 static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
3563 const char *buf, size_t count)
3565 struct Scsi_Host *shost = class_to_shost(dev);
3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
3568 int result = count, i;
3570 if (!capable(CAP_SYS_ADMIN))
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3592 static struct device_attribute ipr_ioa_state_attr = {
3594 .name = "online_state",
3595 .mode = S_IRUGO | S_IWUSR,
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3602 * ipr_store_reset_adapter - Reset the adapter
3603 * @dev: device struct
3605 * @count: buffer size
3607 * This function will reset the adapter.
3610 * count on success / other on failure
3612 static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
3614 const char *buf, size_t count)
3616 struct Scsi_Host *shost = class_to_shost(dev);
3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3621 if (!capable(CAP_SYS_ADMIN))
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3633 static struct device_attribute ipr_ioa_reset_attr = {
3635 .name = "reset_host",
3638 .store = ipr_store_reset_adapter
3641 static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3648 * number of bytes printed to buffer
3650 static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3671 * number of bytes printed to buffer
3673 static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3683 if (!ioa_cfg->sis64) {
3684 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3690 if (user_iopoll_weight > 256) {
3691 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3696 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3702 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3709 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3710 ioa_cfg->iopoll_weight, ipr_iopoll);
3711 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3714 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3719 static struct device_attribute ipr_iopoll_weight_attr = {
3721 .name = "iopoll_weight",
3722 .mode = S_IRUGO | S_IWUSR,
3724 .show = ipr_show_iopoll_weight,
3725 .store = ipr_store_iopoll_weight
3729 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3730 * @buf_len: buffer length
3732 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3733 * list to use for microcode download
3736 * pointer to sglist / NULL on failure
3738 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3740 int sg_size, order, bsize_elem, num_elem, i, j;
3741 struct ipr_sglist *sglist;
3742 struct scatterlist *scatterlist;
3745 /* Get the minimum size per scatter/gather element */
3746 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3748 /* Get the actual size per element */
3749 order = get_order(sg_size);
3751 /* Determine the actual number of bytes per element */
3752 bsize_elem = PAGE_SIZE * (1 << order);
3754 /* Determine the actual number of sg entries needed */
3755 if (buf_len % bsize_elem)
3756 num_elem = (buf_len / bsize_elem) + 1;
3758 num_elem = buf_len / bsize_elem;
3760 /* Allocate a scatter/gather list for the DMA */
3761 sglist = kzalloc(sizeof(struct ipr_sglist) +
3762 (sizeof(struct scatterlist) * (num_elem - 1)),
3765 if (sglist == NULL) {
3770 scatterlist = sglist->scatterlist;
3771 sg_init_table(scatterlist, num_elem);
3773 sglist->order = order;
3774 sglist->num_sg = num_elem;
3776 /* Allocate a bunch of sg elements */
3777 for (i = 0; i < num_elem; i++) {
3778 page = alloc_pages(GFP_KERNEL, order);
3782 /* Free up what we already allocated */
3783 for (j = i - 1; j >= 0; j--)
3784 __free_pages(sg_page(&scatterlist[j]), order);
3789 sg_set_page(&scatterlist[i], page, 0, 0);
3796 * ipr_free_ucode_buffer - Frees a microcode download buffer
3797 * @p_dnld: scatter/gather list pointer
3799 * Free a DMA'able ucode download buffer previously allocated with
3800 * ipr_alloc_ucode_buffer
3805 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3809 for (i = 0; i < sglist->num_sg; i++)
3810 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3816 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3817 * @sglist: scatter/gather list pointer
3818 * @buffer: buffer pointer
3819 * @len: buffer length
3821 * Copy a microcode image from a user buffer into a buffer allocated by
3822 * ipr_alloc_ucode_buffer
3825 * 0 on success / other on failure
3827 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3828 u8 *buffer, u32 len)
3830 int bsize_elem, i, result = 0;
3831 struct scatterlist *scatterlist;
3834 /* Determine the actual number of bytes per element */
3835 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3837 scatterlist = sglist->scatterlist;
3839 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3840 struct page *page = sg_page(&scatterlist[i]);
3843 memcpy(kaddr, buffer, bsize_elem);
3846 scatterlist[i].length = bsize_elem;
3854 if (len % bsize_elem) {
3855 struct page *page = sg_page(&scatterlist[i]);
3858 memcpy(kaddr, buffer, len % bsize_elem);
3861 scatterlist[i].length = len % bsize_elem;
3864 sglist->buffer_len = len;
3869 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3870 * @ipr_cmd: ipr command struct
3871 * @sglist: scatter/gather list
3873 * Builds a microcode download IOA data list (IOADL).
3876 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3877 struct ipr_sglist *sglist)
3879 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3880 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3881 struct scatterlist *scatterlist = sglist->scatterlist;
3884 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3886 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3889 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3890 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3891 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3892 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3893 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3896 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3900 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3901 * @ipr_cmd: ipr command struct
3902 * @sglist: scatter/gather list
3904 * Builds a microcode download IOA data list (IOADL).
3907 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3908 struct ipr_sglist *sglist)
3910 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3911 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3912 struct scatterlist *scatterlist = sglist->scatterlist;
3915 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3917 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3920 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3922 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3923 ioadl[i].flags_and_data_len =
3924 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3926 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3929 ioadl[i-1].flags_and_data_len |=
3930 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3934 * ipr_update_ioa_ucode - Update IOA's microcode
3935 * @ioa_cfg: ioa config struct
3936 * @sglist: scatter/gather list
3938 * Initiate an adapter reset to update the IOA's microcode
3941 * 0 on success / -EIO on failure
3943 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3944 struct ipr_sglist *sglist)
3946 unsigned long lock_flags;
3948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3949 while (ioa_cfg->in_reset_reload) {
3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3955 if (ioa_cfg->ucode_sglist) {
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 dev_err(&ioa_cfg->pdev->dev,
3958 "Microcode download already in progress\n");
3962 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3963 sglist->scatterlist, sglist->num_sg,
3966 if (!sglist->num_dma_sg) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 dev_err(&ioa_cfg->pdev->dev,
3969 "Failed to map microcode download buffer!\n");
3973 ioa_cfg->ucode_sglist = sglist;
3974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3976 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 ioa_cfg->ucode_sglist = NULL;
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3985 * ipr_store_update_fw - Update the firmware on the adapter
3986 * @class_dev: device struct
3988 * @count: buffer size
3990 * This function will update the firmware on the adapter.
3993 * count on success / other on failure
3995 static ssize_t ipr_store_update_fw(struct device *dev,
3996 struct device_attribute *attr,
3997 const char *buf, size_t count)
3999 struct Scsi_Host *shost = class_to_shost(dev);
4000 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 struct ipr_ucode_image_header *image_hdr;
4002 const struct firmware *fw_entry;
4003 struct ipr_sglist *sglist;
4006 int len, result, dnld_size;
4008 if (!capable(CAP_SYS_ADMIN))
4011 len = snprintf(fname, 99, "%s", buf);
4012 fname[len-1] = '\0';
4014 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
4015 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4019 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4021 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4022 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4023 sglist = ipr_alloc_ucode_buffer(dnld_size);
4026 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4027 release_firmware(fw_entry);
4031 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4034 dev_err(&ioa_cfg->pdev->dev,
4035 "Microcode buffer copy to DMA buffer failed\n");
4039 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4041 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
4046 ipr_free_ucode_buffer(sglist);
4047 release_firmware(fw_entry);
4051 static struct device_attribute ipr_update_fw_attr = {
4053 .name = "update_fw",
4056 .store = ipr_store_update_fw
4060 * ipr_show_fw_type - Show the adapter's firmware type.
4061 * @dev: class device struct
4065 * number of bytes printed to buffer
4067 static ssize_t ipr_show_fw_type(struct device *dev,
4068 struct device_attribute *attr, char *buf)
4070 struct Scsi_Host *shost = class_to_shost(dev);
4071 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4072 unsigned long lock_flags = 0;
4075 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4076 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4081 static struct device_attribute ipr_ioa_fw_type_attr = {
4086 .show = ipr_show_fw_type
4089 static struct device_attribute *ipr_ioa_attrs[] = {
4090 &ipr_fw_version_attr,
4091 &ipr_log_level_attr,
4092 &ipr_diagnostics_attr,
4093 &ipr_ioa_state_attr,
4094 &ipr_ioa_reset_attr,
4095 &ipr_update_fw_attr,
4096 &ipr_ioa_fw_type_attr,
4097 &ipr_iopoll_weight_attr,
4101 #ifdef CONFIG_SCSI_IPR_DUMP
4103 * ipr_read_dump - Dump the adapter
4104 * @filp: open sysfs file
4105 * @kobj: kobject struct
4106 * @bin_attr: bin_attribute struct
4109 * @count: buffer size
4112 * number of bytes printed to buffer
4114 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
4115 struct bin_attribute *bin_attr,
4116 char *buf, loff_t off, size_t count)
4118 struct device *cdev = container_of(kobj, struct device, kobj);
4119 struct Scsi_Host *shost = class_to_shost(cdev);
4120 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4121 struct ipr_dump *dump;
4122 unsigned long lock_flags = 0;
4127 if (!capable(CAP_SYS_ADMIN))
4130 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4131 dump = ioa_cfg->dump;
4133 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4137 kref_get(&dump->kref);
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4140 if (off > dump->driver_dump.hdr.len) {
4141 kref_put(&dump->kref, ipr_release_dump);
4145 if (off + count > dump->driver_dump.hdr.len) {
4146 count = dump->driver_dump.hdr.len - off;
4150 if (count && off < sizeof(dump->driver_dump)) {
4151 if (off + count > sizeof(dump->driver_dump))
4152 len = sizeof(dump->driver_dump) - off;
4155 src = (u8 *)&dump->driver_dump + off;
4156 memcpy(buf, src, len);
4162 off -= sizeof(dump->driver_dump);
4165 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4166 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4167 sizeof(struct ipr_sdt_entry));
4169 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4170 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4172 if (count && off < sdt_end) {
4173 if (off + count > sdt_end)
4174 len = sdt_end - off;
4177 src = (u8 *)&dump->ioa_dump + off;
4178 memcpy(buf, src, len);
4187 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4188 len = PAGE_ALIGN(off) - off;
4191 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4192 src += off & ~PAGE_MASK;
4193 memcpy(buf, src, len);
4199 kref_put(&dump->kref, ipr_release_dump);
4204 * ipr_alloc_dump - Prepare for adapter dump
4205 * @ioa_cfg: ioa config struct
4208 * 0 on success / other on failure
4210 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4212 struct ipr_dump *dump;
4214 unsigned long lock_flags = 0;
4216 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4219 ipr_err("Dump memory allocation failed\n");
4224 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4226 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4229 ipr_err("Dump memory allocation failed\n");
4234 dump->ioa_dump.ioa_data = ioa_data;
4236 kref_init(&dump->kref);
4237 dump->ioa_cfg = ioa_cfg;
4239 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4241 if (INACTIVE != ioa_cfg->sdt_state) {
4242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4243 vfree(dump->ioa_dump.ioa_data);
4248 ioa_cfg->dump = dump;
4249 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
4250 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
4251 ioa_cfg->dump_taken = 1;
4252 schedule_work(&ioa_cfg->work_q);
4254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4260 * ipr_free_dump - Free adapter dump memory
4261 * @ioa_cfg: ioa config struct
4264 * 0 on success / other on failure
4266 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4268 struct ipr_dump *dump;
4269 unsigned long lock_flags = 0;
4273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4274 dump = ioa_cfg->dump;
4276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280 ioa_cfg->dump = NULL;
4281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4283 kref_put(&dump->kref, ipr_release_dump);
4290 * ipr_write_dump - Setup dump state of adapter
4291 * @filp: open sysfs file
4292 * @kobj: kobject struct
4293 * @bin_attr: bin_attribute struct
4296 * @count: buffer size
4299 * number of bytes printed to buffer
4301 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4302 struct bin_attribute *bin_attr,
4303 char *buf, loff_t off, size_t count)
4305 struct device *cdev = container_of(kobj, struct device, kobj);
4306 struct Scsi_Host *shost = class_to_shost(cdev);
4307 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4310 if (!capable(CAP_SYS_ADMIN))
4314 rc = ipr_alloc_dump(ioa_cfg);
4315 else if (buf[0] == '0')
4316 rc = ipr_free_dump(ioa_cfg);
4326 static struct bin_attribute ipr_dump_attr = {
4329 .mode = S_IRUSR | S_IWUSR,
4332 .read = ipr_read_dump,
4333 .write = ipr_write_dump
4336 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4340 * ipr_change_queue_depth - Change the device's queue depth
4341 * @sdev: scsi device struct
4342 * @qdepth: depth to set
4343 * @reason: calling context
4348 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
4350 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4351 struct ipr_resource_entry *res;
4352 unsigned long lock_flags = 0;
4354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4355 res = (struct ipr_resource_entry *)sdev->hostdata;
4357 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4358 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4361 scsi_change_queue_depth(sdev, qdepth);
4362 return sdev->queue_depth;
4366 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4367 * @dev: device struct
4368 * @attr: device attribute structure
4372 * number of bytes printed to buffer
4374 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4376 struct scsi_device *sdev = to_scsi_device(dev);
4377 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4378 struct ipr_resource_entry *res;
4379 unsigned long lock_flags = 0;
4380 ssize_t len = -ENXIO;
4382 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4383 res = (struct ipr_resource_entry *)sdev->hostdata;
4385 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4390 static struct device_attribute ipr_adapter_handle_attr = {
4392 .name = "adapter_handle",
4395 .show = ipr_show_adapter_handle
4399 * ipr_show_resource_path - Show the resource path or the resource address for
4401 * @dev: device struct
4402 * @attr: device attribute structure
4406 * number of bytes printed to buffer
4408 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4410 struct scsi_device *sdev = to_scsi_device(dev);
4411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4412 struct ipr_resource_entry *res;
4413 unsigned long lock_flags = 0;
4414 ssize_t len = -ENXIO;
4415 char buffer[IPR_MAX_RES_PATH_LENGTH];
4417 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4418 res = (struct ipr_resource_entry *)sdev->hostdata;
4419 if (res && ioa_cfg->sis64)
4420 len = snprintf(buf, PAGE_SIZE, "%s\n",
4421 __ipr_format_res_path(res->res_path, buffer,
4424 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4425 res->bus, res->target, res->lun);
4427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4431 static struct device_attribute ipr_resource_path_attr = {
4433 .name = "resource_path",
4436 .show = ipr_show_resource_path
4440 * ipr_show_device_id - Show the device_id for this device.
4441 * @dev: device struct
4442 * @attr: device attribute structure
4446 * number of bytes printed to buffer
4448 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4450 struct scsi_device *sdev = to_scsi_device(dev);
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 unsigned long lock_flags = 0;
4454 ssize_t len = -ENXIO;
4456 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4457 res = (struct ipr_resource_entry *)sdev->hostdata;
4458 if (res && ioa_cfg->sis64)
4459 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
4461 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4467 static struct device_attribute ipr_device_id_attr = {
4469 .name = "device_id",
4472 .show = ipr_show_device_id
4476 * ipr_show_resource_type - Show the resource type for this device.
4477 * @dev: device struct
4478 * @attr: device attribute structure
4482 * number of bytes printed to buffer
4484 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4486 struct scsi_device *sdev = to_scsi_device(dev);
4487 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4488 struct ipr_resource_entry *res;
4489 unsigned long lock_flags = 0;
4490 ssize_t len = -ENXIO;
4492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4493 res = (struct ipr_resource_entry *)sdev->hostdata;
4496 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4498 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4502 static struct device_attribute ipr_resource_type_attr = {
4504 .name = "resource_type",
4507 .show = ipr_show_resource_type
4511 * ipr_show_raw_mode - Show the adapter's raw mode
4512 * @dev: class device struct
4516 * number of bytes printed to buffer
4518 static ssize_t ipr_show_raw_mode(struct device *dev,
4519 struct device_attribute *attr, char *buf)
4521 struct scsi_device *sdev = to_scsi_device(dev);
4522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4523 struct ipr_resource_entry *res;
4524 unsigned long lock_flags = 0;
4527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4528 res = (struct ipr_resource_entry *)sdev->hostdata;
4530 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4538 * ipr_store_raw_mode - Change the adapter's raw mode
4539 * @dev: class device struct
4543 * number of bytes printed to buffer
4545 static ssize_t ipr_store_raw_mode(struct device *dev,
4546 struct device_attribute *attr,
4547 const char *buf, size_t count)
4549 struct scsi_device *sdev = to_scsi_device(dev);
4550 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4551 struct ipr_resource_entry *res;
4552 unsigned long lock_flags = 0;
4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4556 res = (struct ipr_resource_entry *)sdev->hostdata;
4558 if (ipr_is_af_dasd_device(res)) {
4559 res->raw_mode = simple_strtoul(buf, NULL, 10);
4562 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4563 res->raw_mode ? "enabled" : "disabled");
4568 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4572 static struct device_attribute ipr_raw_mode_attr = {
4575 .mode = S_IRUGO | S_IWUSR,
4577 .show = ipr_show_raw_mode,
4578 .store = ipr_store_raw_mode
4581 static struct device_attribute *ipr_dev_attrs[] = {
4582 &ipr_adapter_handle_attr,
4583 &ipr_resource_path_attr,
4584 &ipr_device_id_attr,
4585 &ipr_resource_type_attr,
4591 * ipr_biosparam - Return the HSC mapping
4592 * @sdev: scsi device struct
4593 * @block_device: block device pointer
4594 * @capacity: capacity of the device
4595 * @parm: Array containing returned HSC values.
4597 * This function generates the HSC parms that fdisk uses.
4598 * We want to make sure we return something that places partitions
4599 * on 4k boundaries for best performance with the IOA.
4604 static int ipr_biosparam(struct scsi_device *sdev,
4605 struct block_device *block_device,
4606 sector_t capacity, int *parm)
4614 cylinders = capacity;
4615 sector_div(cylinders, (128 * 32));
4620 parm[2] = cylinders;
4626 * ipr_find_starget - Find target based on bus/target.
4627 * @starget: scsi target struct
4630 * resource entry pointer if found / NULL if not found
4632 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4634 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4635 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4636 struct ipr_resource_entry *res;
4638 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4639 if ((res->bus == starget->channel) &&
4640 (res->target == starget->id)) {
4648 static struct ata_port_info sata_port_info;
4651 * ipr_target_alloc - Prepare for commands to a SCSI target
4652 * @starget: scsi target struct
4654 * If the device is a SATA device, this function allocates an
4655 * ATA port with libata, else it does nothing.
4658 * 0 on success / non-0 on failure
4660 static int ipr_target_alloc(struct scsi_target *starget)
4662 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4664 struct ipr_sata_port *sata_port;
4665 struct ata_port *ap;
4666 struct ipr_resource_entry *res;
4667 unsigned long lock_flags;
4669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4670 res = ipr_find_starget(starget);
4671 starget->hostdata = NULL;
4673 if (res && ipr_is_gata(res)) {
4674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4675 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4679 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 sata_port->ioa_cfg = ioa_cfg;
4684 sata_port->res = res;
4686 res->sata_port = sata_port;
4687 ap->private_data = sata_port;
4688 starget->hostdata = sata_port;
4694 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4700 * ipr_target_destroy - Destroy a SCSI target
4701 * @starget: scsi target struct
4703 * If the device was a SATA device, this function frees the libata
4704 * ATA port, else it does nothing.
4707 static void ipr_target_destroy(struct scsi_target *starget)
4709 struct ipr_sata_port *sata_port = starget->hostdata;
4710 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4711 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4713 if (ioa_cfg->sis64) {
4714 if (!ipr_find_starget(starget)) {
4715 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4716 clear_bit(starget->id, ioa_cfg->array_ids);
4717 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4718 clear_bit(starget->id, ioa_cfg->vset_ids);
4719 else if (starget->channel == 0)
4720 clear_bit(starget->id, ioa_cfg->target_ids);
4725 starget->hostdata = NULL;
4726 ata_sas_port_destroy(sata_port->ap);
4732 * ipr_find_sdev - Find device based on bus/target/lun.
4733 * @sdev: scsi device struct
4736 * resource entry pointer if found / NULL if not found
4738 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4741 struct ipr_resource_entry *res;
4743 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4744 if ((res->bus == sdev->channel) &&
4745 (res->target == sdev->id) &&
4746 (res->lun == sdev->lun))
4754 * ipr_slave_destroy - Unconfigure a SCSI device
4755 * @sdev: scsi device struct
4760 static void ipr_slave_destroy(struct scsi_device *sdev)
4762 struct ipr_resource_entry *res;
4763 struct ipr_ioa_cfg *ioa_cfg;
4764 unsigned long lock_flags = 0;
4766 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4768 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4769 res = (struct ipr_resource_entry *) sdev->hostdata;
4772 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4773 sdev->hostdata = NULL;
4775 res->sata_port = NULL;
4777 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4781 * ipr_slave_configure - Configure a SCSI device
4782 * @sdev: scsi device struct
4784 * This function configures the specified scsi device.
4789 static int ipr_slave_configure(struct scsi_device *sdev)
4791 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4792 struct ipr_resource_entry *res;
4793 struct ata_port *ap = NULL;
4794 unsigned long lock_flags = 0;
4795 char buffer[IPR_MAX_RES_PATH_LENGTH];
4797 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4798 res = sdev->hostdata;
4800 if (ipr_is_af_dasd_device(res))
4801 sdev->type = TYPE_RAID;
4802 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4803 sdev->scsi_level = 4;
4804 sdev->no_uld_attach = 1;
4806 if (ipr_is_vset_device(res)) {
4807 sdev->scsi_level = SCSI_SPC_3;
4808 blk_queue_rq_timeout(sdev->request_queue,
4809 IPR_VSET_RW_TIMEOUT);
4810 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4812 if (ipr_is_gata(res) && res->sata_port)
4813 ap = res->sata_port->ap;
4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4817 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
4818 ata_sas_slave_configure(sdev, ap);
4822 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4823 ipr_format_res_path(ioa_cfg,
4824 res->res_path, buffer, sizeof(buffer)));
4827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4832 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4833 * @sdev: scsi device struct
4835 * This function initializes an ATA port so that future commands
4836 * sent through queuecommand will work.
4841 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4843 struct ipr_sata_port *sata_port = NULL;
4847 if (sdev->sdev_target)
4848 sata_port = sdev->sdev_target->hostdata;
4850 rc = ata_sas_port_init(sata_port->ap);
4852 rc = ata_sas_sync_probe(sata_port->ap);
4856 ipr_slave_destroy(sdev);
4863 * ipr_slave_alloc - Prepare for commands to a device.
4864 * @sdev: scsi device struct
4866 * This function saves a pointer to the resource entry
4867 * in the scsi device struct if the device exists. We
4868 * can then use this pointer in ipr_queuecommand when
4869 * handling new commands.
4872 * 0 on success / -ENXIO if device does not exist
4874 static int ipr_slave_alloc(struct scsi_device *sdev)
4876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4877 struct ipr_resource_entry *res;
4878 unsigned long lock_flags;
4881 sdev->hostdata = NULL;
4883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4885 res = ipr_find_sdev(sdev);
4890 sdev->hostdata = res;
4891 if (!ipr_is_naca_model(res))
4892 res->needs_sync_complete = 1;
4894 if (ipr_is_gata(res)) {
4895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4896 return ipr_ata_slave_alloc(sdev);
4900 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4906 * ipr_match_lun - Match function for specified LUN
4907 * @ipr_cmd: ipr command struct
4908 * @device: device to match (sdev)
4911 * 1 if command matches sdev / 0 if command does not match sdev
4913 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4915 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4921 * ipr_wait_for_ops - Wait for matching commands to complete
4922 * @ipr_cmd: ipr command struct
4923 * @device: device to match (sdev)
4924 * @match: match function to use
4929 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4930 int (*match)(struct ipr_cmnd *, void *))
4932 struct ipr_cmnd *ipr_cmd;
4934 unsigned long flags;
4935 struct ipr_hrr_queue *hrrq;
4936 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4937 DECLARE_COMPLETION_ONSTACK(comp);
4943 for_each_hrrq(hrrq, ioa_cfg) {
4944 spin_lock_irqsave(hrrq->lock, flags);
4945 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4946 if (match(ipr_cmd, device)) {
4947 ipr_cmd->eh_comp = ∁
4951 spin_unlock_irqrestore(hrrq->lock, flags);
4955 timeout = wait_for_completion_timeout(&comp, timeout);
4960 for_each_hrrq(hrrq, ioa_cfg) {
4961 spin_lock_irqsave(hrrq->lock, flags);
4962 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4963 if (match(ipr_cmd, device)) {
4964 ipr_cmd->eh_comp = NULL;
4968 spin_unlock_irqrestore(hrrq->lock, flags);
4972 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4974 return wait ? FAILED : SUCCESS;
4983 static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
4985 struct ipr_ioa_cfg *ioa_cfg;
4986 unsigned long lock_flags = 0;
4990 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4991 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4993 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4994 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4995 dev_err(&ioa_cfg->pdev->dev,
4996 "Adapter being reset as a result of error recovery.\n");
4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4999 ioa_cfg->sdt_state = GET_DUMP;
5002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5003 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5004 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5006 /* If we got hit with a host reset while we were already resetting
5007 the adapter for some reason, and the reset failed. */
5008 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5019 * ipr_device_reset - Reset the device
5020 * @ioa_cfg: ioa config struct
5021 * @res: resource entry struct
5023 * This function issues a device reset to the affected device.
5024 * If the device is a SCSI device, a LUN reset will be sent
5025 * to the device first. If that does not work, a target reset
5026 * will be sent. If the device is a SATA device, a PHY reset will
5030 * 0 on success / non-zero on failure
5032 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5033 struct ipr_resource_entry *res)
5035 struct ipr_cmnd *ipr_cmd;
5036 struct ipr_ioarcb *ioarcb;
5037 struct ipr_cmd_pkt *cmd_pkt;
5038 struct ipr_ioarcb_ata_regs *regs;
5042 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5043 ioarcb = &ipr_cmd->ioarcb;
5044 cmd_pkt = &ioarcb->cmd_pkt;
5046 if (ipr_cmd->ioa_cfg->sis64) {
5047 regs = &ipr_cmd->i.ata_ioadl.regs;
5048 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5050 regs = &ioarcb->u.add_data.u.regs;
5052 ioarcb->res_handle = res->res_handle;
5053 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5054 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5055 if (ipr_is_gata(res)) {
5056 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
5057 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
5058 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5061 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5062 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5063 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5064 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5065 if (ipr_cmd->ioa_cfg->sis64)
5066 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5067 sizeof(struct ipr_ioasa_gata));
5069 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5070 sizeof(struct ipr_ioasa_gata));
5074 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
5078 * ipr_sata_reset - Reset the SATA port
5079 * @link: SATA link to reset
5080 * @classes: class of the attached device
5082 * This function issues a SATA phy reset to the affected ATA link.
5085 * 0 on success / non-zero on failure
5087 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
5088 unsigned long deadline)
5090 struct ipr_sata_port *sata_port = link->ap->private_data;
5091 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5092 struct ipr_resource_entry *res;
5093 unsigned long lock_flags = 0;
5097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5098 while (ioa_cfg->in_reset_reload) {
5099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5100 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5104 res = sata_port->res;
5106 rc = ipr_device_reset(ioa_cfg, res);
5107 *classes = res->ata_class;
5110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5116 * ipr_eh_dev_reset - Reset the device
5117 * @scsi_cmd: scsi command struct
5119 * This function issues a device reset to the affected device.
5120 * A LUN reset will be sent to the device first. If that does
5121 * not work, a target reset will be sent.
5126 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
5128 struct ipr_cmnd *ipr_cmd;
5129 struct ipr_ioa_cfg *ioa_cfg;
5130 struct ipr_resource_entry *res;
5131 struct ata_port *ap;
5133 struct ipr_hrr_queue *hrrq;
5136 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5137 res = scsi_cmd->device->hostdata;
5143 * If we are currently going through reset/reload, return failed. This will force the
5144 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5147 if (ioa_cfg->in_reset_reload)
5149 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5152 for_each_hrrq(hrrq, ioa_cfg) {
5153 spin_lock(&hrrq->_lock);
5154 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5155 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5156 if (ipr_cmd->scsi_cmd)
5157 ipr_cmd->done = ipr_scsi_eh_done;
5159 ipr_cmd->done = ipr_sata_eh_done;
5161 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5162 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5163 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5167 spin_unlock(&hrrq->_lock);
5169 res->resetting_device = 1;
5170 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
5172 if (ipr_is_gata(res) && res->sata_port) {
5173 ap = res->sata_port->ap;
5174 spin_unlock_irq(scsi_cmd->device->host->host_lock);
5175 ata_std_error_handler(ap);
5176 spin_lock_irq(scsi_cmd->device->host->host_lock);
5178 for_each_hrrq(hrrq, ioa_cfg) {
5179 spin_lock(&hrrq->_lock);
5180 list_for_each_entry(ipr_cmd,
5181 &hrrq->hrrq_pending_q, queue) {
5182 if (ipr_cmd->ioarcb.res_handle ==
5188 spin_unlock(&hrrq->_lock);
5191 rc = ipr_device_reset(ioa_cfg, res);
5192 res->resetting_device = 0;
5193 res->reset_occurred = 1;
5196 return rc ? FAILED : SUCCESS;
5199 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
5202 struct ipr_ioa_cfg *ioa_cfg;
5204 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5206 spin_lock_irq(cmd->device->host->host_lock);
5207 rc = __ipr_eh_dev_reset(cmd);
5208 spin_unlock_irq(cmd->device->host->host_lock);
5211 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5217 * ipr_bus_reset_done - Op done function for bus reset.
5218 * @ipr_cmd: ipr command struct
5220 * This function is the op done function for a bus reset
5225 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5228 struct ipr_resource_entry *res;
5231 if (!ioa_cfg->sis64)
5232 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5233 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5234 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5240 * If abort has not completed, indicate the reset has, else call the
5241 * abort's done function to wake the sleeping eh thread
5243 if (ipr_cmd->sibling->sibling)
5244 ipr_cmd->sibling->sibling = NULL;
5246 ipr_cmd->sibling->done(ipr_cmd->sibling);
5248 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5253 * ipr_abort_timeout - An abort task has timed out
5254 * @ipr_cmd: ipr command struct
5256 * This function handles when an abort task times out. If this
5257 * happens we issue a bus reset since we have resources tied
5258 * up that must be freed before returning to the midlayer.
5263 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5265 struct ipr_cmnd *reset_cmd;
5266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5267 struct ipr_cmd_pkt *cmd_pkt;
5268 unsigned long lock_flags = 0;
5271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5272 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5277 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
5278 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5279 ipr_cmd->sibling = reset_cmd;
5280 reset_cmd->sibling = ipr_cmd;
5281 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5282 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5283 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5284 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5285 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5287 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5293 * ipr_cancel_op - Cancel specified op
5294 * @scsi_cmd: scsi command struct
5296 * This function cancels specified op.
5301 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
5303 struct ipr_cmnd *ipr_cmd;
5304 struct ipr_ioa_cfg *ioa_cfg;
5305 struct ipr_resource_entry *res;
5306 struct ipr_cmd_pkt *cmd_pkt;
5309 struct ipr_hrr_queue *hrrq;
5312 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5313 res = scsi_cmd->device->hostdata;
5315 /* If we are currently going through reset/reload, return failed.
5316 * This will force the mid-layer to call ipr_eh_host_reset,
5317 * which will then go to sleep and wait for the reset to complete
5319 if (ioa_cfg->in_reset_reload ||
5320 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
5326 * If we are aborting a timed out op, chances are that the timeout was caused
5327 * by a still not detected EEH error. In such cases, reading a register will
5328 * trigger the EEH recovery infrastructure.
5330 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5332 if (!ipr_is_gscsi(res))
5335 for_each_hrrq(hrrq, ioa_cfg) {
5336 spin_lock(&hrrq->_lock);
5337 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5338 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5339 ipr_cmd->done = ipr_scsi_eh_done;
5344 spin_unlock(&hrrq->_lock);
5350 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5351 ipr_cmd->ioarcb.res_handle = res->res_handle;
5352 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5353 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5354 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5355 ipr_cmd->u.sdev = scsi_cmd->device;
5357 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5359 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
5360 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5363 * If the abort task timed out and we sent a bus reset, we will get
5364 * one the following responses to the abort
5366 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5371 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5372 if (!ipr_is_naca_model(res))
5373 res->needs_sync_complete = 1;
5376 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
5380 * ipr_eh_abort - Abort a single op
5381 * @scsi_cmd: scsi command struct
5384 * 0 if scan in progress / 1 if scan is complete
5386 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5388 unsigned long lock_flags;
5389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5392 spin_lock_irqsave(shost->host_lock, lock_flags);
5393 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5395 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5397 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5402 * ipr_eh_host_reset - Reset the host adapter
5403 * @scsi_cmd: scsi command struct
5408 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
5410 unsigned long flags;
5412 struct ipr_ioa_cfg *ioa_cfg;
5416 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5418 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5419 rc = ipr_cancel_op(scsi_cmd);
5420 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5423 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
5429 * ipr_handle_other_interrupt - Handle "other" interrupts
5430 * @ioa_cfg: ioa config struct
5431 * @int_reg: interrupt register
5434 * IRQ_NONE / IRQ_HANDLED
5436 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5439 irqreturn_t rc = IRQ_HANDLED;
5442 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5443 int_reg &= ~int_mask_reg;
5445 /* If an interrupt on the adapter did not occur, ignore it.
5446 * Or in the case of SIS 64, check for a stage change interrupt.
5448 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5449 if (ioa_cfg->sis64) {
5450 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5451 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5452 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5454 /* clear stage change */
5455 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5456 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5457 list_del(&ioa_cfg->reset_cmd->queue);
5458 del_timer(&ioa_cfg->reset_cmd->timer);
5459 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5467 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5468 /* Mask the interrupt */
5469 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5470 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5472 list_del(&ioa_cfg->reset_cmd->queue);
5473 del_timer(&ioa_cfg->reset_cmd->timer);
5474 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5475 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5476 if (ioa_cfg->clear_isr) {
5477 if (ipr_debug && printk_ratelimit())
5478 dev_err(&ioa_cfg->pdev->dev,
5479 "Spurious interrupt detected. 0x%08X\n", int_reg);
5480 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5481 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5485 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5486 ioa_cfg->ioa_unit_checked = 1;
5487 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5488 dev_err(&ioa_cfg->pdev->dev,
5489 "No Host RRQ. 0x%08X\n", int_reg);
5491 dev_err(&ioa_cfg->pdev->dev,
5492 "Permanent IOA failure. 0x%08X\n", int_reg);
5494 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5495 ioa_cfg->sdt_state = GET_DUMP;
5497 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5498 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5505 * ipr_isr_eh - Interrupt service routine error handler
5506 * @ioa_cfg: ioa config struct
5507 * @msg: message to log
5512 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
5514 ioa_cfg->errors_logged++;
5515 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
5517 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5518 ioa_cfg->sdt_state = GET_DUMP;
5520 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5523 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
5524 struct list_head *doneq)
5528 struct ipr_cmnd *ipr_cmd;
5529 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5532 /* If interrupts are disabled, ignore the interrupt */
5533 if (!hrr_queue->allow_interrupts)
5536 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5537 hrr_queue->toggle_bit) {
5539 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5540 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5541 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5543 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5544 cmd_index < hrr_queue->min_cmd_id)) {
5546 "Invalid response handle from IOA: ",
5551 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5552 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5554 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5556 list_move_tail(&ipr_cmd->queue, doneq);
5558 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5559 hrr_queue->hrrq_curr++;
5561 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5562 hrr_queue->toggle_bit ^= 1u;
5565 if (budget > 0 && num_hrrq >= budget)
5572 static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5574 struct ipr_ioa_cfg *ioa_cfg;
5575 struct ipr_hrr_queue *hrrq;
5576 struct ipr_cmnd *ipr_cmd, *temp;
5577 unsigned long hrrq_flags;
5581 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5582 ioa_cfg = hrrq->ioa_cfg;
5584 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5585 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5587 if (completed_ops < budget)
5588 blk_iopoll_complete(iop);
5589 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5591 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5592 list_del(&ipr_cmd->queue);
5593 del_timer(&ipr_cmd->timer);
5594 ipr_cmd->fast_done(ipr_cmd);
5597 return completed_ops;
5601 * ipr_isr - Interrupt service routine
5603 * @devp: pointer to ioa config struct
5606 * IRQ_NONE / IRQ_HANDLED
5608 static irqreturn_t ipr_isr(int irq, void *devp)
5610 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5611 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5612 unsigned long hrrq_flags = 0;
5616 struct ipr_cmnd *ipr_cmd, *temp;
5617 irqreturn_t rc = IRQ_NONE;
5620 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5621 /* If interrupts are disabled, ignore the interrupt */
5622 if (!hrrq->allow_interrupts) {
5623 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5628 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5631 if (!ioa_cfg->clear_isr)
5634 /* Clear the PCI interrupt */
5637 writel(IPR_PCII_HRRQ_UPDATED,
5638 ioa_cfg->regs.clr_interrupt_reg32);
5639 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5640 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5641 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5643 } else if (rc == IRQ_NONE && irq_none == 0) {
5644 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5646 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5647 int_reg & IPR_PCII_HRRQ_UPDATED) {
5649 "Error clearing HRRQ: ", num_hrrq);
5656 if (unlikely(rc == IRQ_NONE))
5657 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5659 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5660 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5661 list_del(&ipr_cmd->queue);
5662 del_timer(&ipr_cmd->timer);
5663 ipr_cmd->fast_done(ipr_cmd);
5669 * ipr_isr_mhrrq - Interrupt service routine
5671 * @devp: pointer to ioa config struct
5674 * IRQ_NONE / IRQ_HANDLED
5676 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5678 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5679 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
5680 unsigned long hrrq_flags = 0;
5681 struct ipr_cmnd *ipr_cmd, *temp;
5682 irqreturn_t rc = IRQ_NONE;
5685 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5687 /* If interrupts are disabled, ignore the interrupt */
5688 if (!hrrq->allow_interrupts) {
5689 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5693 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
5694 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5696 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5697 blk_iopoll_sched(&hrrq->iopoll);
5698 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5702 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5705 if (ipr_process_hrrq(hrrq, -1, &doneq))
5709 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5711 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5712 list_del(&ipr_cmd->queue);
5713 del_timer(&ipr_cmd->timer);
5714 ipr_cmd->fast_done(ipr_cmd);
5720 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5721 * @ioa_cfg: ioa config struct
5722 * @ipr_cmd: ipr command struct
5725 * 0 on success / -1 on failure
5727 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5728 struct ipr_cmnd *ipr_cmd)
5731 struct scatterlist *sg;
5733 u32 ioadl_flags = 0;
5734 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5735 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5736 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5738 length = scsi_bufflen(scsi_cmd);
5742 nseg = scsi_dma_map(scsi_cmd);
5744 if (printk_ratelimit())
5745 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5749 ipr_cmd->dma_use_sg = nseg;
5751 ioarcb->data_transfer_length = cpu_to_be32(length);
5753 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5755 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5756 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5757 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5758 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5759 ioadl_flags = IPR_IOADL_FLAGS_READ;
5761 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5762 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5763 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5764 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5767 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5772 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5773 * @ioa_cfg: ioa config struct
5774 * @ipr_cmd: ipr command struct
5777 * 0 on success / -1 on failure
5779 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5780 struct ipr_cmnd *ipr_cmd)
5783 struct scatterlist *sg;
5785 u32 ioadl_flags = 0;
5786 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5787 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5788 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5790 length = scsi_bufflen(scsi_cmd);
5794 nseg = scsi_dma_map(scsi_cmd);
5796 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
5800 ipr_cmd->dma_use_sg = nseg;
5802 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5803 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5804 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5805 ioarcb->data_transfer_length = cpu_to_be32(length);
5807 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5808 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5809 ioadl_flags = IPR_IOADL_FLAGS_READ;
5810 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5811 ioarcb->read_ioadl_len =
5812 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5815 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5816 ioadl = ioarcb->u.add_data.u.ioadl;
5817 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5818 offsetof(struct ipr_ioarcb, u.add_data));
5819 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5822 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5823 ioadl[i].flags_and_data_len =
5824 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5825 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5828 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5833 * ipr_erp_done - Process completion of ERP for a device
5834 * @ipr_cmd: ipr command struct
5836 * This function copies the sense buffer into the scsi_cmd
5837 * struct and pushes the scsi_done function.
5842 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5844 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5845 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5846 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5848 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5849 scsi_cmd->result |= (DID_ERROR << 16);
5850 scmd_printk(KERN_ERR, scsi_cmd,
5851 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5853 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5854 SCSI_SENSE_BUFFERSIZE);
5858 if (!ipr_is_naca_model(res))
5859 res->needs_sync_complete = 1;
5862 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5863 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
5864 scsi_cmd->scsi_done(scsi_cmd);
5868 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5869 * @ipr_cmd: ipr command struct
5874 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5876 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5877 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5878 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5880 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5881 ioarcb->data_transfer_length = 0;
5882 ioarcb->read_data_transfer_length = 0;
5883 ioarcb->ioadl_len = 0;
5884 ioarcb->read_ioadl_len = 0;
5885 ioasa->hdr.ioasc = 0;
5886 ioasa->hdr.residual_data_len = 0;
5888 if (ipr_cmd->ioa_cfg->sis64)
5889 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5890 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5892 ioarcb->write_ioadl_addr =
5893 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5894 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5899 * ipr_erp_request_sense - Send request sense to a device
5900 * @ipr_cmd: ipr command struct
5902 * This function sends a request sense to a device as a result
5903 * of a check condition.
5908 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5910 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5911 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5913 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5914 ipr_erp_done(ipr_cmd);
5918 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5920 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5921 cmd_pkt->cdb[0] = REQUEST_SENSE;
5922 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5924 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5925 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5927 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5928 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5930 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5931 IPR_REQUEST_SENSE_TIMEOUT * 2);
5935 * ipr_erp_cancel_all - Send cancel all to a device
5936 * @ipr_cmd: ipr command struct
5938 * This function sends a cancel all to a device to clear the
5939 * queue. If we are running TCQ on the device, QERR is set to 1,
5940 * which means all outstanding ops have been dropped on the floor.
5941 * Cancel all will return them to us.
5946 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5948 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5949 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5950 struct ipr_cmd_pkt *cmd_pkt;
5954 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5956 if (!scsi_cmd->device->simple_tags) {
5957 ipr_erp_request_sense(ipr_cmd);
5961 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5962 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5963 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5965 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5966 IPR_CANCEL_ALL_TIMEOUT);
5970 * ipr_dump_ioasa - Dump contents of IOASA
5971 * @ioa_cfg: ioa config struct
5972 * @ipr_cmd: ipr command struct
5973 * @res: resource entry struct
5975 * This function is invoked by the interrupt handler when ops
5976 * fail. It will log the IOASA if appropriate. Only called
5982 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5983 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5987 u32 ioasc, fd_ioasc;
5988 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5989 __be32 *ioasa_data = (__be32 *)ioasa;
5992 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5993 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5998 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6001 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6002 error_index = ipr_get_error(fd_ioasc);
6004 error_index = ipr_get_error(ioasc);
6006 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6007 /* Don't log an error if the IOA already logged one */
6008 if (ioasa->hdr.ilid != 0)
6011 if (!ipr_is_gscsi(res))
6014 if (ipr_error_table[error_index].log_ioasa == 0)
6018 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
6020 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6021 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6022 data_len = sizeof(struct ipr_ioasa64);
6023 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
6024 data_len = sizeof(struct ipr_ioasa);
6026 ipr_err("IOASA Dump:\n");
6028 for (i = 0; i < data_len / 4; i += 4) {
6029 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6030 be32_to_cpu(ioasa_data[i]),
6031 be32_to_cpu(ioasa_data[i+1]),
6032 be32_to_cpu(ioasa_data[i+2]),
6033 be32_to_cpu(ioasa_data[i+3]));
6038 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6040 * @sense_buf: sense data buffer
6045 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6048 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6049 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
6050 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6051 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
6053 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6055 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6058 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6060 if (ipr_is_vset_device(res) &&
6061 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6062 ioasa->u.vset.failing_lba_hi != 0) {
6063 sense_buf[0] = 0x72;
6064 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6065 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6066 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6070 sense_buf[9] = 0x0A;
6071 sense_buf[10] = 0x80;
6073 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6075 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6076 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6077 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6078 sense_buf[15] = failing_lba & 0x000000ff;
6080 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6082 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6083 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6084 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6085 sense_buf[19] = failing_lba & 0x000000ff;
6087 sense_buf[0] = 0x70;
6088 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6089 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6090 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6092 /* Illegal request */
6093 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
6094 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
6095 sense_buf[7] = 10; /* additional length */
6097 /* IOARCB was in error */
6098 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6099 sense_buf[15] = 0xC0;
6100 else /* Parameter data was invalid */
6101 sense_buf[15] = 0x80;
6104 ((IPR_FIELD_POINTER_MASK &
6105 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
6107 (IPR_FIELD_POINTER_MASK &
6108 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
6110 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6111 if (ipr_is_vset_device(res))
6112 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6114 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6116 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6117 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6118 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6119 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6120 sense_buf[6] = failing_lba & 0x000000ff;
6123 sense_buf[7] = 6; /* additional length */
6129 * ipr_get_autosense - Copy autosense data to sense buffer
6130 * @ipr_cmd: ipr command struct
6132 * This function copies the autosense buffer to the buffer
6133 * in the scsi_cmd, if there is autosense available.
6136 * 1 if autosense was available / 0 if not
6138 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6140 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6141 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
6143 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
6146 if (ipr_cmd->ioa_cfg->sis64)
6147 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6148 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6149 SCSI_SENSE_BUFFERSIZE));
6151 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6152 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6153 SCSI_SENSE_BUFFERSIZE));
6158 * ipr_erp_start - Process an error response for a SCSI op
6159 * @ioa_cfg: ioa config struct
6160 * @ipr_cmd: ipr command struct
6162 * This function determines whether or not to initiate ERP
6163 * on the affected device.
6168 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6169 struct ipr_cmnd *ipr_cmd)
6171 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6172 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6173 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6174 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
6177 ipr_scsi_eh_done(ipr_cmd);
6181 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
6182 ipr_gen_sense(ipr_cmd);
6184 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6186 switch (masked_ioasc) {
6187 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
6188 if (ipr_is_naca_model(res))
6189 scsi_cmd->result |= (DID_ABORT << 16);
6191 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6193 case IPR_IOASC_IR_RESOURCE_HANDLE:
6194 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
6195 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6197 case IPR_IOASC_HW_SEL_TIMEOUT:
6198 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6199 if (!ipr_is_naca_model(res))
6200 res->needs_sync_complete = 1;
6202 case IPR_IOASC_SYNC_REQUIRED:
6204 res->needs_sync_complete = 1;
6205 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6207 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
6208 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
6209 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6211 case IPR_IOASC_BUS_WAS_RESET:
6212 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6214 * Report the bus reset and ask for a retry. The device
6215 * will give CC/UA the next command.
6217 if (!res->resetting_device)
6218 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6219 scsi_cmd->result |= (DID_ERROR << 16);
6220 if (!ipr_is_naca_model(res))
6221 res->needs_sync_complete = 1;
6223 case IPR_IOASC_HW_DEV_BUS_STATUS:
6224 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6225 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
6226 if (!ipr_get_autosense(ipr_cmd)) {
6227 if (!ipr_is_naca_model(res)) {
6228 ipr_erp_cancel_all(ipr_cmd);
6233 if (!ipr_is_naca_model(res))
6234 res->needs_sync_complete = 1;
6236 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6238 case IPR_IOASC_IR_NON_OPTIMIZED:
6239 if (res->raw_mode) {
6241 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6243 scsi_cmd->result |= (DID_ERROR << 16);
6246 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6247 scsi_cmd->result |= (DID_ERROR << 16);
6248 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
6249 res->needs_sync_complete = 1;
6253 scsi_dma_unmap(ipr_cmd->scsi_cmd);
6254 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6255 scsi_cmd->scsi_done(scsi_cmd);
6259 * ipr_scsi_done - mid-layer done function
6260 * @ipr_cmd: ipr command struct
6262 * This function is invoked by the interrupt handler for
6263 * ops generated by the SCSI mid-layer
6268 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6272 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6273 unsigned long lock_flags;
6275 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
6277 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
6278 scsi_dma_unmap(scsi_cmd);
6280 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
6281 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6282 scsi_cmd->scsi_done(scsi_cmd);
6283 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
6285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6286 spin_lock(&ipr_cmd->hrrq->_lock);
6287 ipr_erp_start(ioa_cfg, ipr_cmd);
6288 spin_unlock(&ipr_cmd->hrrq->_lock);
6289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6294 * ipr_queuecommand - Queue a mid-layer request
6295 * @shost: scsi host struct
6296 * @scsi_cmd: scsi command struct
6298 * This function queues a request generated by the mid-layer.
6302 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6303 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6305 static int ipr_queuecommand(struct Scsi_Host *shost,
6306 struct scsi_cmnd *scsi_cmd)
6308 struct ipr_ioa_cfg *ioa_cfg;
6309 struct ipr_resource_entry *res;
6310 struct ipr_ioarcb *ioarcb;
6311 struct ipr_cmnd *ipr_cmd;
6312 unsigned long hrrq_flags, lock_flags;
6314 struct ipr_hrr_queue *hrrq;
6317 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6319 scsi_cmd->result = (DID_OK << 16);
6320 res = scsi_cmd->device->hostdata;
6322 if (ipr_is_gata(res) && res->sata_port) {
6323 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6324 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6325 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6329 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6330 hrrq = &ioa_cfg->hrrq[hrrq_id];
6332 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6334 * We are currently blocking all devices due to a host reset
6335 * We have told the host to stop giving us new requests, but
6336 * ERP ops don't count. FIXME
6338 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
6339 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6340 return SCSI_MLQUEUE_HOST_BUSY;
6344 * FIXME - Create scsi_set_host_offline interface
6345 * and the ioa_is_dead check can be removed
6347 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
6348 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6352 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6353 if (ipr_cmd == NULL) {
6354 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6355 return SCSI_MLQUEUE_HOST_BUSY;
6357 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6359 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
6360 ioarcb = &ipr_cmd->ioarcb;
6362 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6363 ipr_cmd->scsi_cmd = scsi_cmd;
6364 ipr_cmd->done = ipr_scsi_eh_done;
6366 if (ipr_is_gscsi(res)) {
6367 if (scsi_cmd->underflow == 0)
6368 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6370 if (res->reset_occurred) {
6371 res->reset_occurred = 0;
6372 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
6376 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6377 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6379 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6380 if (scsi_cmd->flags & SCMD_TAGGED)
6381 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6383 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
6386 if (scsi_cmd->cmnd[0] >= 0xC0 &&
6387 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6388 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6390 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6391 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6393 if (scsi_cmd->underflow == 0)
6394 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6398 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6400 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
6402 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6403 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
6404 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6405 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6407 scsi_dma_unmap(scsi_cmd);
6408 return SCSI_MLQUEUE_HOST_BUSY;
6411 if (unlikely(hrrq->ioa_is_dead)) {
6412 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
6413 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6414 scsi_dma_unmap(scsi_cmd);
6418 ioarcb->res_handle = res->res_handle;
6419 if (res->needs_sync_complete) {
6420 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6421 res->needs_sync_complete = 0;
6423 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
6424 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6425 ipr_send_command(ipr_cmd);
6426 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6430 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6431 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6432 scsi_cmd->result = (DID_NO_CONNECT << 16);
6433 scsi_cmd->scsi_done(scsi_cmd);
6434 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
6439 * ipr_ioctl - IOCTL handler
6440 * @sdev: scsi device struct
6445 * 0 on success / other on failure
6447 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
6449 struct ipr_resource_entry *res;
6451 res = (struct ipr_resource_entry *)sdev->hostdata;
6452 if (res && ipr_is_gata(res)) {
6453 if (cmd == HDIO_GET_IDENTITY)
6455 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
6462 * ipr_info - Get information about the card/driver
6463 * @scsi_host: scsi host struct
6466 * pointer to buffer with description string
6468 static const char *ipr_ioa_info(struct Scsi_Host *host)
6470 static char buffer[512];
6471 struct ipr_ioa_cfg *ioa_cfg;
6472 unsigned long lock_flags = 0;
6474 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6476 spin_lock_irqsave(host->host_lock, lock_flags);
6477 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6478 spin_unlock_irqrestore(host->host_lock, lock_flags);
6483 static struct scsi_host_template driver_template = {
6484 .module = THIS_MODULE,
6486 .info = ipr_ioa_info,
6488 .queuecommand = ipr_queuecommand,
6489 .eh_abort_handler = ipr_eh_abort,
6490 .eh_device_reset_handler = ipr_eh_dev_reset,
6491 .eh_host_reset_handler = ipr_eh_host_reset,
6492 .slave_alloc = ipr_slave_alloc,
6493 .slave_configure = ipr_slave_configure,
6494 .slave_destroy = ipr_slave_destroy,
6495 .scan_finished = ipr_scan_finished,
6496 .target_alloc = ipr_target_alloc,
6497 .target_destroy = ipr_target_destroy,
6498 .change_queue_depth = ipr_change_queue_depth,
6499 .bios_param = ipr_biosparam,
6500 .can_queue = IPR_MAX_COMMANDS,
6502 .sg_tablesize = IPR_MAX_SGLIST,
6503 .max_sectors = IPR_IOA_MAX_SECTORS,
6504 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6505 .use_clustering = ENABLE_CLUSTERING,
6506 .shost_attrs = ipr_ioa_attrs,
6507 .sdev_attrs = ipr_dev_attrs,
6508 .proc_name = IPR_NAME,
6513 * ipr_ata_phy_reset - libata phy_reset handler
6514 * @ap: ata port to reset
6517 static void ipr_ata_phy_reset(struct ata_port *ap)
6519 unsigned long flags;
6520 struct ipr_sata_port *sata_port = ap->private_data;
6521 struct ipr_resource_entry *res = sata_port->res;
6522 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6526 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6527 while (ioa_cfg->in_reset_reload) {
6528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6529 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6530 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6533 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
6536 rc = ipr_device_reset(ioa_cfg, res);
6539 ap->link.device[0].class = ATA_DEV_NONE;
6543 ap->link.device[0].class = res->ata_class;
6544 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
6545 ap->link.device[0].class = ATA_DEV_NONE;
6548 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6553 * ipr_ata_post_internal - Cleanup after an internal command
6554 * @qc: ATA queued command
6559 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6561 struct ipr_sata_port *sata_port = qc->ap->private_data;
6562 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6563 struct ipr_cmnd *ipr_cmd;
6564 struct ipr_hrr_queue *hrrq;
6565 unsigned long flags;
6567 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6568 while (ioa_cfg->in_reset_reload) {
6569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6570 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6571 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6574 for_each_hrrq(hrrq, ioa_cfg) {
6575 spin_lock(&hrrq->_lock);
6576 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6577 if (ipr_cmd->qc == qc) {
6578 ipr_device_reset(ioa_cfg, sata_port->res);
6582 spin_unlock(&hrrq->_lock);
6584 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6588 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6589 * @regs: destination
6590 * @tf: source ATA taskfile
6595 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6596 struct ata_taskfile *tf)
6598 regs->feature = tf->feature;
6599 regs->nsect = tf->nsect;
6600 regs->lbal = tf->lbal;
6601 regs->lbam = tf->lbam;
6602 regs->lbah = tf->lbah;
6603 regs->device = tf->device;
6604 regs->command = tf->command;
6605 regs->hob_feature = tf->hob_feature;
6606 regs->hob_nsect = tf->hob_nsect;
6607 regs->hob_lbal = tf->hob_lbal;
6608 regs->hob_lbam = tf->hob_lbam;
6609 regs->hob_lbah = tf->hob_lbah;
6610 regs->ctl = tf->ctl;
6614 * ipr_sata_done - done function for SATA commands
6615 * @ipr_cmd: ipr command struct
6617 * This function is invoked by the interrupt handler for
6618 * ops generated by the SCSI mid-layer to SATA devices
6623 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6625 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6626 struct ata_queued_cmd *qc = ipr_cmd->qc;
6627 struct ipr_sata_port *sata_port = qc->ap->private_data;
6628 struct ipr_resource_entry *res = sata_port->res;
6629 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6631 spin_lock(&ipr_cmd->hrrq->_lock);
6632 if (ipr_cmd->ioa_cfg->sis64)
6633 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6634 sizeof(struct ipr_ioasa_gata));
6636 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6637 sizeof(struct ipr_ioasa_gata));
6638 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6640 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6641 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6643 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6644 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6646 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6647 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6648 spin_unlock(&ipr_cmd->hrrq->_lock);
6649 ata_qc_complete(qc);
6653 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6654 * @ipr_cmd: ipr command struct
6655 * @qc: ATA queued command
6658 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6659 struct ata_queued_cmd *qc)
6661 u32 ioadl_flags = 0;
6662 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6663 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
6664 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6665 int len = qc->nbytes;
6666 struct scatterlist *sg;
6668 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6673 if (qc->dma_dir == DMA_TO_DEVICE) {
6674 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6675 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6676 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6677 ioadl_flags = IPR_IOADL_FLAGS_READ;
6679 ioarcb->data_transfer_length = cpu_to_be32(len);
6681 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6682 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6683 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
6685 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6686 ioadl64->flags = cpu_to_be32(ioadl_flags);
6687 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6688 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6690 last_ioadl64 = ioadl64;
6694 if (likely(last_ioadl64))
6695 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6699 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6700 * @ipr_cmd: ipr command struct
6701 * @qc: ATA queued command
6704 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6705 struct ata_queued_cmd *qc)
6707 u32 ioadl_flags = 0;
6708 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6709 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6710 struct ipr_ioadl_desc *last_ioadl = NULL;
6711 int len = qc->nbytes;
6712 struct scatterlist *sg;
6718 if (qc->dma_dir == DMA_TO_DEVICE) {
6719 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6720 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6721 ioarcb->data_transfer_length = cpu_to_be32(len);
6723 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6724 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6725 ioadl_flags = IPR_IOADL_FLAGS_READ;
6726 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6727 ioarcb->read_ioadl_len =
6728 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6731 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6732 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6733 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6739 if (likely(last_ioadl))
6740 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6744 * ipr_qc_defer - Get a free ipr_cmd
6745 * @qc: queued command
6750 static int ipr_qc_defer(struct ata_queued_cmd *qc)
6752 struct ata_port *ap = qc->ap;
6753 struct ipr_sata_port *sata_port = ap->private_data;
6754 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6755 struct ipr_cmnd *ipr_cmd;
6756 struct ipr_hrr_queue *hrrq;
6759 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6760 hrrq = &ioa_cfg->hrrq[hrrq_id];
6762 qc->lldd_task = NULL;
6763 spin_lock(&hrrq->_lock);
6764 if (unlikely(hrrq->ioa_is_dead)) {
6765 spin_unlock(&hrrq->_lock);
6769 if (unlikely(!hrrq->allow_cmds)) {
6770 spin_unlock(&hrrq->_lock);
6771 return ATA_DEFER_LINK;
6774 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6775 if (ipr_cmd == NULL) {
6776 spin_unlock(&hrrq->_lock);
6777 return ATA_DEFER_LINK;
6780 qc->lldd_task = ipr_cmd;
6781 spin_unlock(&hrrq->_lock);
6786 * ipr_qc_issue - Issue a SATA qc to a device
6787 * @qc: queued command
6792 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6794 struct ata_port *ap = qc->ap;
6795 struct ipr_sata_port *sata_port = ap->private_data;
6796 struct ipr_resource_entry *res = sata_port->res;
6797 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6798 struct ipr_cmnd *ipr_cmd;
6799 struct ipr_ioarcb *ioarcb;
6800 struct ipr_ioarcb_ata_regs *regs;
6802 if (qc->lldd_task == NULL)
6805 ipr_cmd = qc->lldd_task;
6806 if (ipr_cmd == NULL)
6807 return AC_ERR_SYSTEM;
6809 qc->lldd_task = NULL;
6810 spin_lock(&ipr_cmd->hrrq->_lock);
6811 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6812 ipr_cmd->hrrq->ioa_is_dead)) {
6813 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6814 spin_unlock(&ipr_cmd->hrrq->_lock);
6815 return AC_ERR_SYSTEM;
6818 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
6819 ioarcb = &ipr_cmd->ioarcb;
6821 if (ioa_cfg->sis64) {
6822 regs = &ipr_cmd->i.ata_ioadl.regs;
6823 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6825 regs = &ioarcb->u.add_data.u.regs;
6827 memset(regs, 0, sizeof(*regs));
6828 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6830 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
6832 ipr_cmd->done = ipr_sata_done;
6833 ipr_cmd->ioarcb.res_handle = res->res_handle;
6834 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6835 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6836 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6837 ipr_cmd->dma_use_sg = qc->n_elem;
6840 ipr_build_ata_ioadl64(ipr_cmd, qc);
6842 ipr_build_ata_ioadl(ipr_cmd, qc);
6844 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6845 ipr_copy_sata_tf(regs, &qc->tf);
6846 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6849 switch (qc->tf.protocol) {
6850 case ATA_PROT_NODATA:
6855 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6858 case ATAPI_PROT_PIO:
6859 case ATAPI_PROT_NODATA:
6860 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6863 case ATAPI_PROT_DMA:
6864 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6865 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6870 spin_unlock(&ipr_cmd->hrrq->_lock);
6871 return AC_ERR_INVALID;
6874 ipr_send_command(ipr_cmd);
6875 spin_unlock(&ipr_cmd->hrrq->_lock);
6881 * ipr_qc_fill_rtf - Read result TF
6882 * @qc: ATA queued command
6887 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6889 struct ipr_sata_port *sata_port = qc->ap->private_data;
6890 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6891 struct ata_taskfile *tf = &qc->result_tf;
6893 tf->feature = g->error;
6894 tf->nsect = g->nsect;
6898 tf->device = g->device;
6899 tf->command = g->status;
6900 tf->hob_nsect = g->hob_nsect;
6901 tf->hob_lbal = g->hob_lbal;
6902 tf->hob_lbam = g->hob_lbam;
6903 tf->hob_lbah = g->hob_lbah;
6908 static struct ata_port_operations ipr_sata_ops = {
6909 .phy_reset = ipr_ata_phy_reset,
6910 .hardreset = ipr_sata_reset,
6911 .post_internal_cmd = ipr_ata_post_internal,
6912 .qc_prep = ata_noop_qc_prep,
6913 .qc_defer = ipr_qc_defer,
6914 .qc_issue = ipr_qc_issue,
6915 .qc_fill_rtf = ipr_qc_fill_rtf,
6916 .port_start = ata_sas_port_start,
6917 .port_stop = ata_sas_port_stop
6920 static struct ata_port_info sata_port_info = {
6921 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6923 .pio_mask = ATA_PIO4_ONLY,
6924 .mwdma_mask = ATA_MWDMA2,
6925 .udma_mask = ATA_UDMA6,
6926 .port_ops = &ipr_sata_ops
6929 #ifdef CONFIG_PPC_PSERIES
6930 static const u16 ipr_blocked_processors[] = {
6942 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6943 * @ioa_cfg: ioa cfg struct
6945 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6946 * certain pSeries hardware. This function determines if the given
6947 * adapter is in one of these confgurations or not.
6950 * 1 if adapter is not supported / 0 if adapter is supported
6952 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6956 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6957 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
6958 if (pvr_version_is(ipr_blocked_processors[i]))
6965 #define ipr_invalid_adapter(ioa_cfg) 0
6969 * ipr_ioa_bringdown_done - IOA bring down completion.
6970 * @ipr_cmd: ipr command struct
6972 * This function processes the completion of an adapter bring down.
6973 * It wakes any reset sleepers.
6978 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6980 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6984 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6986 spin_unlock_irq(ioa_cfg->host->host_lock);
6987 scsi_unblock_requests(ioa_cfg->host);
6988 spin_lock_irq(ioa_cfg->host->host_lock);
6991 ioa_cfg->in_reset_reload = 0;
6992 ioa_cfg->reset_retries = 0;
6993 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6994 spin_lock(&ioa_cfg->hrrq[i]._lock);
6995 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6996 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7000 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7001 wake_up_all(&ioa_cfg->reset_wait_q);
7004 return IPR_RC_JOB_RETURN;
7008 * ipr_ioa_reset_done - IOA reset completion.
7009 * @ipr_cmd: ipr command struct
7011 * This function processes the completion of an adapter reset.
7012 * It schedules any necessary mid-layer add/removes and
7013 * wakes any reset sleepers.
7018 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7020 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7021 struct ipr_resource_entry *res;
7022 struct ipr_hostrcb *hostrcb, *temp;
7026 ioa_cfg->in_reset_reload = 0;
7027 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7028 spin_lock(&ioa_cfg->hrrq[j]._lock);
7029 ioa_cfg->hrrq[j].allow_cmds = 1;
7030 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7033 ioa_cfg->reset_cmd = NULL;
7034 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
7036 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
7037 if (res->add_to_ml || res->del_from_ml) {
7042 schedule_work(&ioa_cfg->work_q);
7044 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7045 list_del(&hostrcb->queue);
7046 if (i++ < IPR_NUM_LOG_HCAMS)
7047 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7049 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7052 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
7053 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7055 ioa_cfg->reset_retries = 0;
7056 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7057 wake_up_all(&ioa_cfg->reset_wait_q);
7059 spin_unlock(ioa_cfg->host->host_lock);
7060 scsi_unblock_requests(ioa_cfg->host);
7061 spin_lock(ioa_cfg->host->host_lock);
7063 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
7064 scsi_block_requests(ioa_cfg->host);
7066 schedule_work(&ioa_cfg->work_q);
7068 return IPR_RC_JOB_RETURN;
7072 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7073 * @supported_dev: supported device struct
7074 * @vpids: vendor product id struct
7079 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7080 struct ipr_std_inq_vpids *vpids)
7082 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7083 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7084 supported_dev->num_records = 1;
7085 supported_dev->data_length =
7086 cpu_to_be16(sizeof(struct ipr_supported_device));
7087 supported_dev->reserved = 0;
7091 * ipr_set_supported_devs - Send Set Supported Devices for a device
7092 * @ipr_cmd: ipr command struct
7094 * This function sends a Set Supported Devices to the adapter
7097 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7099 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7101 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7102 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
7103 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7104 struct ipr_resource_entry *res = ipr_cmd->u.res;
7106 ipr_cmd->job_step = ipr_ioa_reset_done;
7108 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
7109 if (!ipr_is_scsi_disk(res))
7112 ipr_cmd->u.res = res;
7113 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
7115 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7116 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7117 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7119 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
7120 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
7121 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7122 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7124 ipr_init_ioadl(ipr_cmd,
7125 ioa_cfg->vpd_cbs_dma +
7126 offsetof(struct ipr_misc_cbs, supp_dev),
7127 sizeof(struct ipr_supported_device),
7128 IPR_IOADL_FLAGS_WRITE_LAST);
7130 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7131 IPR_SET_SUP_DEVICE_TIMEOUT);
7133 if (!ioa_cfg->sis64)
7134 ipr_cmd->job_step = ipr_set_supported_devs;
7136 return IPR_RC_JOB_RETURN;
7140 return IPR_RC_JOB_CONTINUE;
7144 * ipr_get_mode_page - Locate specified mode page
7145 * @mode_pages: mode page buffer
7146 * @page_code: page code to find
7147 * @len: minimum required length for mode page
7150 * pointer to mode page / NULL on failure
7152 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7153 u32 page_code, u32 len)
7155 struct ipr_mode_page_hdr *mode_hdr;
7159 if (!mode_pages || (mode_pages->hdr.length == 0))
7162 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7163 mode_hdr = (struct ipr_mode_page_hdr *)
7164 (mode_pages->data + mode_pages->hdr.block_desc_len);
7167 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7168 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7172 page_length = (sizeof(struct ipr_mode_page_hdr) +
7173 mode_hdr->page_length);
7174 length -= page_length;
7175 mode_hdr = (struct ipr_mode_page_hdr *)
7176 ((unsigned long)mode_hdr + page_length);
7183 * ipr_check_term_power - Check for term power errors
7184 * @ioa_cfg: ioa config struct
7185 * @mode_pages: IOAFP mode pages buffer
7187 * Check the IOAFP's mode page 28 for term power errors
7192 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7193 struct ipr_mode_pages *mode_pages)
7197 struct ipr_dev_bus_entry *bus;
7198 struct ipr_mode_page28 *mode_page;
7200 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7201 sizeof(struct ipr_mode_page28));
7203 entry_length = mode_page->entry_length;
7205 bus = mode_page->bus;
7207 for (i = 0; i < mode_page->num_entries; i++) {
7208 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7209 dev_err(&ioa_cfg->pdev->dev,
7210 "Term power is absent on scsi bus %d\n",
7214 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7219 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7220 * @ioa_cfg: ioa config struct
7222 * Looks through the config table checking for SES devices. If
7223 * the SES device is in the SES table indicating a maximum SCSI
7224 * bus speed, the speed is limited for the bus.
7229 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7234 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7235 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7236 ioa_cfg->bus_attr[i].bus_width);
7238 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7239 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7244 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7245 * @ioa_cfg: ioa config struct
7246 * @mode_pages: mode page 28 buffer
7248 * Updates mode page 28 based on driver configuration
7253 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
7254 struct ipr_mode_pages *mode_pages)
7256 int i, entry_length;
7257 struct ipr_dev_bus_entry *bus;
7258 struct ipr_bus_attributes *bus_attr;
7259 struct ipr_mode_page28 *mode_page;
7261 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7262 sizeof(struct ipr_mode_page28));
7264 entry_length = mode_page->entry_length;
7266 /* Loop for each device bus entry */
7267 for (i = 0, bus = mode_page->bus;
7268 i < mode_page->num_entries;
7269 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7270 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7271 dev_err(&ioa_cfg->pdev->dev,
7272 "Invalid resource address reported: 0x%08X\n",
7273 IPR_GET_PHYS_LOC(bus->res_addr));
7277 bus_attr = &ioa_cfg->bus_attr[i];
7278 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7279 bus->bus_width = bus_attr->bus_width;
7280 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7281 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7282 if (bus_attr->qas_enabled)
7283 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7285 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7290 * ipr_build_mode_select - Build a mode select command
7291 * @ipr_cmd: ipr command struct
7292 * @res_handle: resource handle to send command to
7293 * @parm: Byte 2 of Mode Sense command
7294 * @dma_addr: DMA buffer address
7295 * @xfer_len: data transfer length
7300 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
7301 __be32 res_handle, u8 parm,
7302 dma_addr_t dma_addr, u8 xfer_len)
7304 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7306 ioarcb->res_handle = res_handle;
7307 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7308 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7309 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7310 ioarcb->cmd_pkt.cdb[1] = parm;
7311 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7313 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
7317 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7318 * @ipr_cmd: ipr command struct
7320 * This function sets up the SCSI bus attributes and sends
7321 * a Mode Select for Page 28 to activate them.
7326 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7329 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7333 ipr_scsi_bus_speed_limit(ioa_cfg);
7334 ipr_check_term_power(ioa_cfg, mode_pages);
7335 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7336 length = mode_pages->hdr.length + 1;
7337 mode_pages->hdr.length = 0;
7339 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7340 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7343 ipr_cmd->job_step = ipr_set_supported_devs;
7344 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7345 struct ipr_resource_entry, queue);
7346 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7349 return IPR_RC_JOB_RETURN;
7353 * ipr_build_mode_sense - Builds a mode sense command
7354 * @ipr_cmd: ipr command struct
7355 * @res: resource entry struct
7356 * @parm: Byte 2 of mode sense command
7357 * @dma_addr: DMA address of mode sense buffer
7358 * @xfer_len: Size of DMA buffer
7363 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7365 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
7367 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7369 ioarcb->res_handle = res_handle;
7370 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7371 ioarcb->cmd_pkt.cdb[2] = parm;
7372 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7373 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7375 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7379 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7380 * @ipr_cmd: ipr command struct
7382 * This function handles the failure of an IOA bringup command.
7387 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7389 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7390 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7392 dev_err(&ioa_cfg->pdev->dev,
7393 "0x%02X failed with IOASC: 0x%08X\n",
7394 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7396 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7397 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7398 return IPR_RC_JOB_RETURN;
7402 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7403 * @ipr_cmd: ipr command struct
7405 * This function handles the failure of a Mode Sense to the IOAFP.
7406 * Some adapters do not handle all mode pages.
7409 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7411 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7413 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7414 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7416 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7417 ipr_cmd->job_step = ipr_set_supported_devs;
7418 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7419 struct ipr_resource_entry, queue);
7420 return IPR_RC_JOB_CONTINUE;
7423 return ipr_reset_cmd_failed(ipr_cmd);
7427 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7428 * @ipr_cmd: ipr command struct
7430 * This function send a Page 28 mode sense to the IOA to
7431 * retrieve SCSI bus attributes.
7436 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7438 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7441 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7442 0x28, ioa_cfg->vpd_cbs_dma +
7443 offsetof(struct ipr_misc_cbs, mode_pages),
7444 sizeof(struct ipr_mode_pages));
7446 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
7447 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
7449 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7452 return IPR_RC_JOB_RETURN;
7456 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7457 * @ipr_cmd: ipr command struct
7459 * This function enables dual IOA RAID support if possible.
7464 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7466 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7467 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7468 struct ipr_mode_page24 *mode_page;
7472 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7473 sizeof(struct ipr_mode_page24));
7476 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7478 length = mode_pages->hdr.length + 1;
7479 mode_pages->hdr.length = 0;
7481 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7482 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7485 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7486 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7489 return IPR_RC_JOB_RETURN;
7493 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7494 * @ipr_cmd: ipr command struct
7496 * This function handles the failure of a Mode Sense to the IOAFP.
7497 * Some adapters do not handle all mode pages.
7500 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7502 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7504 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7506 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7507 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7508 return IPR_RC_JOB_CONTINUE;
7511 return ipr_reset_cmd_failed(ipr_cmd);
7515 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7516 * @ipr_cmd: ipr command struct
7518 * This function send a mode sense to the IOA to retrieve
7519 * the IOA Advanced Function Control mode page.
7524 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7526 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7529 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7530 0x24, ioa_cfg->vpd_cbs_dma +
7531 offsetof(struct ipr_misc_cbs, mode_pages),
7532 sizeof(struct ipr_mode_pages));
7534 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7535 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7537 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7540 return IPR_RC_JOB_RETURN;
7544 * ipr_init_res_table - Initialize the resource table
7545 * @ipr_cmd: ipr command struct
7547 * This function looks through the existing resource table, comparing
7548 * it with the config table. This function will take care of old/new
7549 * devices and schedule adding/removing them from the mid-layer
7553 * IPR_RC_JOB_CONTINUE
7555 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7557 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7558 struct ipr_resource_entry *res, *temp;
7559 struct ipr_config_table_entry_wrapper cfgtew;
7560 int entries, found, flag, i;
7565 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7567 flag = ioa_cfg->u.cfg_table->hdr.flags;
7569 if (flag & IPR_UCODE_DOWNLOAD_REQ)
7570 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7572 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7573 list_move_tail(&res->queue, &old_res);
7576 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
7578 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7580 for (i = 0; i < entries; i++) {
7582 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7584 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
7587 list_for_each_entry_safe(res, temp, &old_res, queue) {
7588 if (ipr_is_same_device(res, &cfgtew)) {
7589 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7596 if (list_empty(&ioa_cfg->free_res_q)) {
7597 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7602 res = list_entry(ioa_cfg->free_res_q.next,
7603 struct ipr_resource_entry, queue);
7604 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7605 ipr_init_res_entry(res, &cfgtew);
7607 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7608 res->sdev->allow_restart = 1;
7611 ipr_update_res_entry(res, &cfgtew);
7614 list_for_each_entry_safe(res, temp, &old_res, queue) {
7616 res->del_from_ml = 1;
7617 res->res_handle = IPR_INVALID_RES_HANDLE;
7618 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7622 list_for_each_entry_safe(res, temp, &old_res, queue) {
7623 ipr_clear_res_target(res);
7624 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7627 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7628 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7630 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7633 return IPR_RC_JOB_CONTINUE;
7637 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7638 * @ipr_cmd: ipr command struct
7640 * This function sends a Query IOA Configuration command
7641 * to the adapter to retrieve the IOA configuration table.
7646 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7648 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7650 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7651 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7654 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7655 ioa_cfg->dual_raid = 1;
7656 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7657 ucode_vpd->major_release, ucode_vpd->card_type,
7658 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7659 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7660 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7662 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7663 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7664 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7665 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7667 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7668 IPR_IOADL_FLAGS_READ_LAST);
7670 ipr_cmd->job_step = ipr_init_res_table;
7672 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7675 return IPR_RC_JOB_RETURN;
7679 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7680 * @ipr_cmd: ipr command struct
7682 * This utility function sends an inquiry to the adapter.
7687 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7688 dma_addr_t dma_addr, u8 xfer_len)
7690 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7693 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7694 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7696 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7697 ioarcb->cmd_pkt.cdb[1] = flags;
7698 ioarcb->cmd_pkt.cdb[2] = page;
7699 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7701 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7703 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7708 * ipr_inquiry_page_supported - Is the given inquiry page supported
7709 * @page0: inquiry page 0 buffer
7712 * This function determines if the specified inquiry page is supported.
7715 * 1 if page is supported / 0 if not
7717 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7721 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7722 if (page0->page[i] == page)
7729 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7730 * @ipr_cmd: ipr command struct
7732 * This function sends a Page 0xD0 inquiry to the adapter
7733 * to retrieve adapter capabilities.
7736 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7738 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7740 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7741 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7742 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7745 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7746 memset(cap, 0, sizeof(*cap));
7748 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7749 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7750 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7751 sizeof(struct ipr_inquiry_cap));
7752 return IPR_RC_JOB_RETURN;
7756 return IPR_RC_JOB_CONTINUE;
7760 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7761 * @ipr_cmd: ipr command struct
7763 * This function sends a Page 3 inquiry to the adapter
7764 * to retrieve software VPD information.
7767 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7769 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7771 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7775 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7777 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7778 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7779 sizeof(struct ipr_inquiry_page3));
7782 return IPR_RC_JOB_RETURN;
7786 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7787 * @ipr_cmd: ipr command struct
7789 * This function sends a Page 0 inquiry to the adapter
7790 * to retrieve supported inquiry pages.
7793 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7795 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7797 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7802 /* Grab the type out of the VPD and store it away */
7803 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7805 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7807 if (ipr_invalid_adapter(ioa_cfg)) {
7808 dev_err(&ioa_cfg->pdev->dev,
7809 "Adapter not supported in this hardware configuration.\n");
7811 if (!ipr_testmode) {
7812 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7813 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7814 list_add_tail(&ipr_cmd->queue,
7815 &ioa_cfg->hrrq->hrrq_free_q);
7816 return IPR_RC_JOB_RETURN;
7820 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7822 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7823 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7824 sizeof(struct ipr_inquiry_page0));
7827 return IPR_RC_JOB_RETURN;
7831 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7832 * @ipr_cmd: ipr command struct
7834 * This function sends a standard inquiry to the adapter.
7839 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7841 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7844 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7846 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7847 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7848 sizeof(struct ipr_ioa_vpd));
7851 return IPR_RC_JOB_RETURN;
7855 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7856 * @ipr_cmd: ipr command struct
7858 * This function send an Identify Host Request Response Queue
7859 * command to establish the HRRQ with the adapter.
7864 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7866 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7867 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7868 struct ipr_hrr_queue *hrrq;
7871 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7872 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7874 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7875 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
7877 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7878 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7880 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7882 ioarcb->cmd_pkt.cdb[1] = 0x1;
7884 if (ioa_cfg->nvectors == 1)
7885 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7887 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7889 ioarcb->cmd_pkt.cdb[2] =
7890 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7891 ioarcb->cmd_pkt.cdb[3] =
7892 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7893 ioarcb->cmd_pkt.cdb[4] =
7894 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7895 ioarcb->cmd_pkt.cdb[5] =
7896 ((u64) hrrq->host_rrq_dma) & 0xff;
7897 ioarcb->cmd_pkt.cdb[7] =
7898 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7899 ioarcb->cmd_pkt.cdb[8] =
7900 (sizeof(u32) * hrrq->size) & 0xff;
7902 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7903 ioarcb->cmd_pkt.cdb[9] =
7904 ioa_cfg->identify_hrrq_index;
7906 if (ioa_cfg->sis64) {
7907 ioarcb->cmd_pkt.cdb[10] =
7908 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7909 ioarcb->cmd_pkt.cdb[11] =
7910 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7911 ioarcb->cmd_pkt.cdb[12] =
7912 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7913 ioarcb->cmd_pkt.cdb[13] =
7914 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7917 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
7918 ioarcb->cmd_pkt.cdb[14] =
7919 ioa_cfg->identify_hrrq_index;
7921 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7922 IPR_INTERNAL_TIMEOUT);
7924 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7925 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7928 return IPR_RC_JOB_RETURN;
7932 return IPR_RC_JOB_CONTINUE;
7936 * ipr_reset_timer_done - Adapter reset timer function
7937 * @ipr_cmd: ipr command struct
7939 * Description: This function is used in adapter reset processing
7940 * for timing events. If the reset_cmd pointer in the IOA
7941 * config struct is not this adapter's we are doing nested
7942 * resets and fail_all_ops will take care of freeing the
7948 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7950 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7951 unsigned long lock_flags = 0;
7953 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7955 if (ioa_cfg->reset_cmd == ipr_cmd) {
7956 list_del(&ipr_cmd->queue);
7957 ipr_cmd->done(ipr_cmd);
7960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7964 * ipr_reset_start_timer - Start a timer for adapter reset job
7965 * @ipr_cmd: ipr command struct
7966 * @timeout: timeout value
7968 * Description: This function is used in adapter reset processing
7969 * for timing events. If the reset_cmd pointer in the IOA
7970 * config struct is not this adapter's we are doing nested
7971 * resets and fail_all_ops will take care of freeing the
7977 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7978 unsigned long timeout)
7982 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
7983 ipr_cmd->done = ipr_reset_ioa_job;
7985 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7986 ipr_cmd->timer.expires = jiffies + timeout;
7987 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7988 add_timer(&ipr_cmd->timer);
7992 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7993 * @ioa_cfg: ioa cfg struct
7998 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8000 struct ipr_hrr_queue *hrrq;
8002 for_each_hrrq(hrrq, ioa_cfg) {
8003 spin_lock(&hrrq->_lock);
8004 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8006 /* Initialize Host RRQ pointers */
8007 hrrq->hrrq_start = hrrq->host_rrq;
8008 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8009 hrrq->hrrq_curr = hrrq->hrrq_start;
8010 hrrq->toggle_bit = 1;
8011 spin_unlock(&hrrq->_lock);
8015 ioa_cfg->identify_hrrq_index = 0;
8016 if (ioa_cfg->hrrq_num == 1)
8017 atomic_set(&ioa_cfg->hrrq_index, 0);
8019 atomic_set(&ioa_cfg->hrrq_index, 1);
8021 /* Zero out config table */
8022 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
8026 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8027 * @ipr_cmd: ipr command struct
8030 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8032 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8034 unsigned long stage, stage_time;
8036 volatile u32 int_reg;
8037 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8040 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8041 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8042 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8044 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8046 /* sanity check the stage_time value */
8047 if (stage_time == 0)
8048 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8049 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
8050 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8051 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8052 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8054 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8055 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8056 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8057 stage_time = ioa_cfg->transop_timeout;
8058 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8059 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
8060 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8061 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8062 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8063 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8064 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8065 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8066 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8067 return IPR_RC_JOB_CONTINUE;
8071 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8072 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8073 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8074 ipr_cmd->done = ipr_reset_ioa_job;
8075 add_timer(&ipr_cmd->timer);
8077 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8079 return IPR_RC_JOB_RETURN;
8083 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8084 * @ipr_cmd: ipr command struct
8086 * This function reinitializes some control blocks and
8087 * enables destructive diagnostics on the adapter.
8092 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8094 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8095 volatile u32 int_reg;
8096 volatile u64 maskval;
8100 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8101 ipr_init_ioa_mem(ioa_cfg);
8103 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8104 spin_lock(&ioa_cfg->hrrq[i]._lock);
8105 ioa_cfg->hrrq[i].allow_interrupts = 1;
8106 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8109 if (ioa_cfg->sis64) {
8110 /* Set the adapter to the correct endian mode. */
8111 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8112 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8115 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8117 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8118 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
8119 ioa_cfg->regs.clr_interrupt_mask_reg32);
8120 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8121 return IPR_RC_JOB_CONTINUE;
8124 /* Enable destructive diagnostics on IOA */
8125 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8127 if (ioa_cfg->sis64) {
8128 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8129 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8130 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8132 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
8134 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8136 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8138 if (ioa_cfg->sis64) {
8139 ipr_cmd->job_step = ipr_reset_next_stage;
8140 return IPR_RC_JOB_CONTINUE;
8143 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8144 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
8145 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8146 ipr_cmd->done = ipr_reset_ioa_job;
8147 add_timer(&ipr_cmd->timer);
8148 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
8151 return IPR_RC_JOB_RETURN;
8155 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8156 * @ipr_cmd: ipr command struct
8158 * This function is invoked when an adapter dump has run out
8159 * of processing time.
8162 * IPR_RC_JOB_CONTINUE
8164 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8166 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8168 if (ioa_cfg->sdt_state == GET_DUMP)
8169 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8170 else if (ioa_cfg->sdt_state == READ_DUMP)
8171 ioa_cfg->sdt_state = ABORT_DUMP;
8173 ioa_cfg->dump_timeout = 1;
8174 ipr_cmd->job_step = ipr_reset_alert;
8176 return IPR_RC_JOB_CONTINUE;
8180 * ipr_unit_check_no_data - Log a unit check/no data error log
8181 * @ioa_cfg: ioa config struct
8183 * Logs an error indicating the adapter unit checked, but for some
8184 * reason, we were unable to fetch the unit check buffer.
8189 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8191 ioa_cfg->errors_logged++;
8192 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8196 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8197 * @ioa_cfg: ioa config struct
8199 * Fetches the unit check buffer from the adapter by clocking the data
8200 * through the mailbox register.
8205 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8207 unsigned long mailbox;
8208 struct ipr_hostrcb *hostrcb;
8209 struct ipr_uc_sdt sdt;
8213 mailbox = readl(ioa_cfg->ioa_mailbox);
8215 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
8216 ipr_unit_check_no_data(ioa_cfg);
8220 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8221 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8222 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8224 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8225 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8226 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
8227 ipr_unit_check_no_data(ioa_cfg);
8231 /* Find length of the first sdt entry (UC buffer) */
8232 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8233 length = be32_to_cpu(sdt.entry[0].end_token);
8235 length = (be32_to_cpu(sdt.entry[0].end_token) -
8236 be32_to_cpu(sdt.entry[0].start_token)) &
8237 IPR_FMT2_MBX_ADDR_MASK;
8239 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8240 struct ipr_hostrcb, queue);
8241 list_del(&hostrcb->queue);
8242 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8244 rc = ipr_get_ldump_data_section(ioa_cfg,
8245 be32_to_cpu(sdt.entry[0].start_token),
8246 (__be32 *)&hostrcb->hcam,
8247 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8250 ipr_handle_log_data(ioa_cfg, hostrcb);
8251 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
8252 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8253 ioa_cfg->sdt_state == GET_DUMP)
8254 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8256 ipr_unit_check_no_data(ioa_cfg);
8258 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8262 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8263 * @ipr_cmd: ipr command struct
8265 * Description: This function will call to get the unit check buffer.
8270 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8272 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8275 ioa_cfg->ioa_unit_checked = 0;
8276 ipr_get_unit_check_buffer(ioa_cfg);
8277 ipr_cmd->job_step = ipr_reset_alert;
8278 ipr_reset_start_timer(ipr_cmd, 0);
8281 return IPR_RC_JOB_RETURN;
8284 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8286 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8290 if (ioa_cfg->sdt_state != GET_DUMP)
8291 return IPR_RC_JOB_RETURN;
8293 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8294 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8295 IPR_PCII_MAILBOX_STABLE)) {
8297 if (!ipr_cmd->u.time_left)
8298 dev_err(&ioa_cfg->pdev->dev,
8299 "Timed out waiting for Mailbox register.\n");
8301 ioa_cfg->sdt_state = READ_DUMP;
8302 ioa_cfg->dump_timeout = 0;
8304 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8306 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8307 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8308 schedule_work(&ioa_cfg->work_q);
8311 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8312 ipr_reset_start_timer(ipr_cmd,
8313 IPR_CHECK_FOR_RESET_TIMEOUT);
8317 return IPR_RC_JOB_RETURN;
8321 * ipr_reset_restore_cfg_space - Restore PCI config space.
8322 * @ipr_cmd: ipr command struct
8324 * Description: This function restores the saved PCI config space of
8325 * the adapter, fails all outstanding ops back to the callers, and
8326 * fetches the dump/unit check if applicable to this reset.
8329 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8331 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8333 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8337 ioa_cfg->pdev->state_saved = true;
8338 pci_restore_state(ioa_cfg->pdev);
8340 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
8341 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8342 return IPR_RC_JOB_CONTINUE;
8345 ipr_fail_all_ops(ioa_cfg);
8347 if (ioa_cfg->sis64) {
8348 /* Set the adapter to the correct endian mode. */
8349 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8350 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8353 if (ioa_cfg->ioa_unit_checked) {
8354 if (ioa_cfg->sis64) {
8355 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8356 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8357 return IPR_RC_JOB_RETURN;
8359 ioa_cfg->ioa_unit_checked = 0;
8360 ipr_get_unit_check_buffer(ioa_cfg);
8361 ipr_cmd->job_step = ipr_reset_alert;
8362 ipr_reset_start_timer(ipr_cmd, 0);
8363 return IPR_RC_JOB_RETURN;
8367 if (ioa_cfg->in_ioa_bringdown) {
8368 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8369 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8370 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8371 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
8373 ipr_cmd->job_step = ipr_reset_enable_ioa;
8377 return IPR_RC_JOB_CONTINUE;
8381 * ipr_reset_bist_done - BIST has completed on the adapter.
8382 * @ipr_cmd: ipr command struct
8384 * Description: Unblock config space and resume the reset process.
8387 * IPR_RC_JOB_CONTINUE
8389 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8391 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8394 if (ioa_cfg->cfg_locked)
8395 pci_cfg_access_unlock(ioa_cfg->pdev);
8396 ioa_cfg->cfg_locked = 0;
8397 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8399 return IPR_RC_JOB_CONTINUE;
8403 * ipr_reset_start_bist - Run BIST on the adapter.
8404 * @ipr_cmd: ipr command struct
8406 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8409 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8411 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8413 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8414 int rc = PCIBIOS_SUCCESSFUL;
8417 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8418 writel(IPR_UPROCI_SIS64_START_BIST,
8419 ioa_cfg->regs.set_uproc_interrupt_reg32);
8421 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8423 if (rc == PCIBIOS_SUCCESSFUL) {
8424 ipr_cmd->job_step = ipr_reset_bist_done;
8425 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8426 rc = IPR_RC_JOB_RETURN;
8428 if (ioa_cfg->cfg_locked)
8429 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8430 ioa_cfg->cfg_locked = 0;
8431 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8432 rc = IPR_RC_JOB_CONTINUE;
8440 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8441 * @ipr_cmd: ipr command struct
8443 * Description: This clears PCI reset to the adapter and delays two seconds.
8448 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8451 ipr_cmd->job_step = ipr_reset_bist_done;
8452 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8454 return IPR_RC_JOB_RETURN;
8458 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8459 * @work: work struct
8461 * Description: This pulses warm reset to a slot.
8464 static void ipr_reset_reset_work(struct work_struct *work)
8466 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8467 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8468 struct pci_dev *pdev = ioa_cfg->pdev;
8469 unsigned long lock_flags = 0;
8472 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8473 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8474 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8476 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8477 if (ioa_cfg->reset_cmd == ipr_cmd)
8478 ipr_reset_ioa_job(ipr_cmd);
8479 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8484 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8485 * @ipr_cmd: ipr command struct
8487 * Description: This asserts PCI reset to the adapter.
8492 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8494 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8497 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8498 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
8499 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8501 return IPR_RC_JOB_RETURN;
8505 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8506 * @ipr_cmd: ipr command struct
8508 * Description: This attempts to block config access to the IOA.
8511 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8513 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8515 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8516 int rc = IPR_RC_JOB_CONTINUE;
8518 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8519 ioa_cfg->cfg_locked = 1;
8520 ipr_cmd->job_step = ioa_cfg->reset;
8522 if (ipr_cmd->u.time_left) {
8523 rc = IPR_RC_JOB_RETURN;
8524 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8525 ipr_reset_start_timer(ipr_cmd,
8526 IPR_CHECK_FOR_RESET_TIMEOUT);
8528 ipr_cmd->job_step = ioa_cfg->reset;
8529 dev_err(&ioa_cfg->pdev->dev,
8530 "Timed out waiting to lock config access. Resetting anyway.\n");
8538 * ipr_reset_block_config_access - Block config access to the IOA
8539 * @ipr_cmd: ipr command struct
8541 * Description: This attempts to block config access to the IOA
8544 * IPR_RC_JOB_CONTINUE
8546 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8548 ipr_cmd->ioa_cfg->cfg_locked = 0;
8549 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8550 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8551 return IPR_RC_JOB_CONTINUE;
8555 * ipr_reset_allowed - Query whether or not IOA can be reset
8556 * @ioa_cfg: ioa config struct
8559 * 0 if reset not allowed / non-zero if reset is allowed
8561 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8563 volatile u32 temp_reg;
8565 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8566 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8570 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8571 * @ipr_cmd: ipr command struct
8573 * Description: This function waits for adapter permission to run BIST,
8574 * then runs BIST. If the adapter does not give permission after a
8575 * reasonable time, we will reset the adapter anyway. The impact of
8576 * resetting the adapter without warning the adapter is the risk of
8577 * losing the persistent error log on the adapter. If the adapter is
8578 * reset while it is writing to the flash on the adapter, the flash
8579 * segment will have bad ECC and be zeroed.
8582 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8584 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8586 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8587 int rc = IPR_RC_JOB_RETURN;
8589 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8590 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8591 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8593 ipr_cmd->job_step = ipr_reset_block_config_access;
8594 rc = IPR_RC_JOB_CONTINUE;
8601 * ipr_reset_alert - Alert the adapter of a pending reset
8602 * @ipr_cmd: ipr command struct
8604 * Description: This function alerts the adapter that it will be reset.
8605 * If memory space is not currently enabled, proceed directly
8606 * to running BIST on the adapter. The timer must always be started
8607 * so we guarantee we do not run BIST from ipr_isr.
8612 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8614 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8619 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8621 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8622 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
8623 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
8624 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8626 ipr_cmd->job_step = ipr_reset_block_config_access;
8629 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8630 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8633 return IPR_RC_JOB_RETURN;
8637 * ipr_reset_quiesce_done - Complete IOA disconnect
8638 * @ipr_cmd: ipr command struct
8640 * Description: Freeze the adapter to complete quiesce processing
8643 * IPR_RC_JOB_CONTINUE
8645 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8647 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8650 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8651 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8653 return IPR_RC_JOB_CONTINUE;
8657 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8658 * @ipr_cmd: ipr command struct
8660 * Description: Ensure nothing is outstanding to the IOA and
8661 * proceed with IOA disconnect. Otherwise reset the IOA.
8664 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8666 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8668 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8669 struct ipr_cmnd *loop_cmd;
8670 struct ipr_hrr_queue *hrrq;
8671 int rc = IPR_RC_JOB_CONTINUE;
8675 ipr_cmd->job_step = ipr_reset_quiesce_done;
8677 for_each_hrrq(hrrq, ioa_cfg) {
8678 spin_lock(&hrrq->_lock);
8679 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8681 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8682 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8683 rc = IPR_RC_JOB_RETURN;
8686 spin_unlock(&hrrq->_lock);
8697 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8698 * @ipr_cmd: ipr command struct
8700 * Description: Cancel any oustanding HCAMs to the IOA.
8703 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8705 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8707 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8708 int rc = IPR_RC_JOB_CONTINUE;
8709 struct ipr_cmd_pkt *cmd_pkt;
8710 struct ipr_cmnd *hcam_cmd;
8711 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8714 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8716 if (!hrrq->ioa_is_dead) {
8717 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8718 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8719 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8722 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8723 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8724 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8725 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8726 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8727 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8728 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8729 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8730 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8731 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8732 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8733 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8734 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8735 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8737 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8738 IPR_CANCEL_TIMEOUT);
8740 rc = IPR_RC_JOB_RETURN;
8741 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8746 ipr_cmd->job_step = ipr_reset_alert;
8753 * ipr_reset_ucode_download_done - Microcode download completion
8754 * @ipr_cmd: ipr command struct
8756 * Description: This function unmaps the microcode download buffer.
8759 * IPR_RC_JOB_CONTINUE
8761 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8764 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8766 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
8767 sglist->num_sg, DMA_TO_DEVICE);
8769 ipr_cmd->job_step = ipr_reset_alert;
8770 return IPR_RC_JOB_CONTINUE;
8774 * ipr_reset_ucode_download - Download microcode to the adapter
8775 * @ipr_cmd: ipr command struct
8777 * Description: This function checks to see if it there is microcode
8778 * to download to the adapter. If there is, a download is performed.
8781 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8783 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8786 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8789 ipr_cmd->job_step = ipr_reset_alert;
8792 return IPR_RC_JOB_CONTINUE;
8794 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8795 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8796 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8797 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8798 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8799 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8800 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8803 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8805 ipr_build_ucode_ioadl(ipr_cmd, sglist);
8806 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8808 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8809 IPR_WRITE_BUFFER_TIMEOUT);
8812 return IPR_RC_JOB_RETURN;
8816 * ipr_reset_shutdown_ioa - Shutdown the adapter
8817 * @ipr_cmd: ipr command struct
8819 * Description: This function issues an adapter shutdown of the
8820 * specified type to the specified adapter as part of the
8821 * adapter reset job.
8824 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8826 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8829 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8830 unsigned long timeout;
8831 int rc = IPR_RC_JOB_CONTINUE;
8834 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8835 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8836 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
8837 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
8838 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8839 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8840 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8841 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8843 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8844 timeout = IPR_SHUTDOWN_TIMEOUT;
8845 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8846 timeout = IPR_INTERNAL_TIMEOUT;
8847 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8848 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
8850 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
8852 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8854 rc = IPR_RC_JOB_RETURN;
8855 ipr_cmd->job_step = ipr_reset_ucode_download;
8857 ipr_cmd->job_step = ipr_reset_alert;
8864 * ipr_reset_ioa_job - Adapter reset job
8865 * @ipr_cmd: ipr command struct
8867 * Description: This function is the job router for the adapter reset job.
8872 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8875 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8878 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8880 if (ioa_cfg->reset_cmd != ipr_cmd) {
8882 * We are doing nested adapter resets and this is
8883 * not the current reset job.
8885 list_add_tail(&ipr_cmd->queue,
8886 &ipr_cmd->hrrq->hrrq_free_q);
8890 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8891 rc = ipr_cmd->job_step_failed(ipr_cmd);
8892 if (rc == IPR_RC_JOB_RETURN)
8896 ipr_reinit_ipr_cmnd(ipr_cmd);
8897 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8898 rc = ipr_cmd->job_step(ipr_cmd);
8899 } while (rc == IPR_RC_JOB_CONTINUE);
8903 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8904 * @ioa_cfg: ioa config struct
8905 * @job_step: first job step of reset job
8906 * @shutdown_type: shutdown type
8908 * Description: This function will initiate the reset of the given adapter
8909 * starting at the selected job step.
8910 * If the caller needs to wait on the completion of the reset,
8911 * the caller must sleep on the reset_wait_q.
8916 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8917 int (*job_step) (struct ipr_cmnd *),
8918 enum ipr_shutdown_type shutdown_type)
8920 struct ipr_cmnd *ipr_cmd;
8923 ioa_cfg->in_reset_reload = 1;
8924 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8925 spin_lock(&ioa_cfg->hrrq[i]._lock);
8926 ioa_cfg->hrrq[i].allow_cmds = 0;
8927 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8930 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8931 scsi_block_requests(ioa_cfg->host);
8933 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8934 ioa_cfg->reset_cmd = ipr_cmd;
8935 ipr_cmd->job_step = job_step;
8936 ipr_cmd->u.shutdown_type = shutdown_type;
8938 ipr_reset_ioa_job(ipr_cmd);
8942 * ipr_initiate_ioa_reset - Initiate an adapter reset
8943 * @ioa_cfg: ioa config struct
8944 * @shutdown_type: shutdown type
8946 * Description: This function will initiate the reset of the given adapter.
8947 * If the caller needs to wait on the completion of the reset,
8948 * the caller must sleep on the reset_wait_q.
8953 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8954 enum ipr_shutdown_type shutdown_type)
8958 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8961 if (ioa_cfg->in_reset_reload) {
8962 if (ioa_cfg->sdt_state == GET_DUMP)
8963 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8964 else if (ioa_cfg->sdt_state == READ_DUMP)
8965 ioa_cfg->sdt_state = ABORT_DUMP;
8968 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8969 dev_err(&ioa_cfg->pdev->dev,
8970 "IOA taken offline - error recovery failed\n");
8972 ioa_cfg->reset_retries = 0;
8973 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8974 spin_lock(&ioa_cfg->hrrq[i]._lock);
8975 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8976 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8980 if (ioa_cfg->in_ioa_bringdown) {
8981 ioa_cfg->reset_cmd = NULL;
8982 ioa_cfg->in_reset_reload = 0;
8983 ipr_fail_all_ops(ioa_cfg);
8984 wake_up_all(&ioa_cfg->reset_wait_q);
8986 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8987 spin_unlock_irq(ioa_cfg->host->host_lock);
8988 scsi_unblock_requests(ioa_cfg->host);
8989 spin_lock_irq(ioa_cfg->host->host_lock);
8993 ioa_cfg->in_ioa_bringdown = 1;
8994 shutdown_type = IPR_SHUTDOWN_NONE;
8998 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9003 * ipr_reset_freeze - Hold off all I/O activity
9004 * @ipr_cmd: ipr command struct
9006 * Description: If the PCI slot is frozen, hold off all I/O
9007 * activity; then, as soon as the slot is available again,
9008 * initiate an adapter reset.
9010 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9012 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9015 /* Disallow new interrupts, avoid loop */
9016 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9017 spin_lock(&ioa_cfg->hrrq[i]._lock);
9018 ioa_cfg->hrrq[i].allow_interrupts = 0;
9019 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9022 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
9023 ipr_cmd->done = ipr_reset_ioa_job;
9024 return IPR_RC_JOB_RETURN;
9028 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9029 * @pdev: PCI device struct
9031 * Description: This routine is called to tell us that the MMIO
9032 * access to the IOA has been restored
9034 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9036 unsigned long flags = 0;
9037 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9039 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9040 if (!ioa_cfg->probe_done)
9041 pci_save_state(pdev);
9042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9043 return PCI_ERS_RESULT_NEED_RESET;
9047 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9048 * @pdev: PCI device struct
9050 * Description: This routine is called to tell us that the PCI bus
9051 * is down. Can't do anything here, except put the device driver
9052 * into a holding pattern, waiting for the PCI bus to come back.
9054 static void ipr_pci_frozen(struct pci_dev *pdev)
9056 unsigned long flags = 0;
9057 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9059 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9060 if (ioa_cfg->probe_done)
9061 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
9062 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9066 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9067 * @pdev: PCI device struct
9069 * Description: This routine is called by the pci error recovery
9070 * code after the PCI slot has been reset, just before we
9071 * should resume normal operations.
9073 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9075 unsigned long flags = 0;
9076 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9078 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9079 if (ioa_cfg->probe_done) {
9080 if (ioa_cfg->needs_warm_reset)
9081 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9083 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9086 wake_up_all(&ioa_cfg->eeh_wait_q);
9087 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9088 return PCI_ERS_RESULT_RECOVERED;
9092 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9093 * @pdev: PCI device struct
9095 * Description: This routine is called when the PCI bus has
9096 * permanently failed.
9098 static void ipr_pci_perm_failure(struct pci_dev *pdev)
9100 unsigned long flags = 0;
9101 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9104 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9105 if (ioa_cfg->probe_done) {
9106 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9107 ioa_cfg->sdt_state = ABORT_DUMP;
9108 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9109 ioa_cfg->in_ioa_bringdown = 1;
9110 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9111 spin_lock(&ioa_cfg->hrrq[i]._lock);
9112 ioa_cfg->hrrq[i].allow_cmds = 0;
9113 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9116 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9118 wake_up_all(&ioa_cfg->eeh_wait_q);
9119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9123 * ipr_pci_error_detected - Called when a PCI error is detected.
9124 * @pdev: PCI device struct
9125 * @state: PCI channel state
9127 * Description: Called when a PCI error is detected.
9130 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9132 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9133 pci_channel_state_t state)
9136 case pci_channel_io_frozen:
9137 ipr_pci_frozen(pdev);
9138 return PCI_ERS_RESULT_CAN_RECOVER;
9139 case pci_channel_io_perm_failure:
9140 ipr_pci_perm_failure(pdev);
9141 return PCI_ERS_RESULT_DISCONNECT;
9146 return PCI_ERS_RESULT_NEED_RESET;
9150 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9151 * @ioa_cfg: ioa cfg struct
9153 * Description: This is the second phase of adapter intialization
9154 * This function takes care of initilizing the adapter to the point
9155 * where it can accept new commands.
9158 * 0 on success / -EIO on failure
9160 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
9163 unsigned long host_lock_flags = 0;
9166 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9167 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
9168 ioa_cfg->probe_done = 1;
9169 if (ioa_cfg->needs_hard_reset) {
9170 ioa_cfg->needs_hard_reset = 0;
9171 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9173 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9175 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9182 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9183 * @ioa_cfg: ioa config struct
9188 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9192 if (ioa_cfg->ipr_cmnd_list) {
9193 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9194 if (ioa_cfg->ipr_cmnd_list[i])
9195 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9196 ioa_cfg->ipr_cmnd_list[i],
9197 ioa_cfg->ipr_cmnd_list_dma[i]);
9199 ioa_cfg->ipr_cmnd_list[i] = NULL;
9203 if (ioa_cfg->ipr_cmd_pool)
9204 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
9206 kfree(ioa_cfg->ipr_cmnd_list);
9207 kfree(ioa_cfg->ipr_cmnd_list_dma);
9208 ioa_cfg->ipr_cmnd_list = NULL;
9209 ioa_cfg->ipr_cmnd_list_dma = NULL;
9210 ioa_cfg->ipr_cmd_pool = NULL;
9214 * ipr_free_mem - Frees memory allocated for an adapter
9215 * @ioa_cfg: ioa cfg struct
9220 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9224 kfree(ioa_cfg->res_entries);
9225 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9226 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9227 ipr_free_cmd_blks(ioa_cfg);
9229 for (i = 0; i < ioa_cfg->hrrq_num; i++)
9230 dma_free_coherent(&ioa_cfg->pdev->dev,
9231 sizeof(u32) * ioa_cfg->hrrq[i].size,
9232 ioa_cfg->hrrq[i].host_rrq,
9233 ioa_cfg->hrrq[i].host_rrq_dma);
9235 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9236 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9238 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9239 dma_free_coherent(&ioa_cfg->pdev->dev,
9240 sizeof(struct ipr_hostrcb),
9241 ioa_cfg->hostrcb[i],
9242 ioa_cfg->hostrcb_dma[i]);
9245 ipr_free_dump(ioa_cfg);
9246 kfree(ioa_cfg->trace);
9250 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9251 * @ioa_cfg: ipr cfg struct
9253 * This function frees all allocated IRQs for the
9254 * specified adapter.
9259 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
9261 struct pci_dev *pdev = ioa_cfg->pdev;
9263 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9264 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9266 for (i = 0; i < ioa_cfg->nvectors; i++)
9267 free_irq(ioa_cfg->vectors_info[i].vec,
9270 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9272 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9273 pci_disable_msi(pdev);
9274 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9275 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9276 pci_disable_msix(pdev);
9277 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9282 * ipr_free_all_resources - Free all allocated resources for an adapter.
9283 * @ipr_cmd: ipr command struct
9285 * This function frees all allocated resources for the
9286 * specified adapter.
9291 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9293 struct pci_dev *pdev = ioa_cfg->pdev;
9296 ipr_free_irqs(ioa_cfg);
9297 if (ioa_cfg->reset_work_q)
9298 destroy_workqueue(ioa_cfg->reset_work_q);
9299 iounmap(ioa_cfg->hdw_dma_regs);
9300 pci_release_regions(pdev);
9301 ipr_free_mem(ioa_cfg);
9302 scsi_host_put(ioa_cfg->host);
9303 pci_disable_device(pdev);
9308 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9309 * @ioa_cfg: ioa config struct
9312 * 0 on success / -ENOMEM on allocation failure
9314 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9316 struct ipr_cmnd *ipr_cmd;
9317 struct ipr_ioarcb *ioarcb;
9318 dma_addr_t dma_addr;
9319 int i, entries_each_hrrq, hrrq_id = 0;
9321 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
9322 sizeof(struct ipr_cmnd), 512, 0);
9324 if (!ioa_cfg->ipr_cmd_pool)
9327 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9328 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9330 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9331 ipr_free_cmd_blks(ioa_cfg);
9335 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9336 if (ioa_cfg->hrrq_num > 1) {
9338 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9339 ioa_cfg->hrrq[i].min_cmd_id = 0;
9340 ioa_cfg->hrrq[i].max_cmd_id =
9341 (entries_each_hrrq - 1);
9344 IPR_NUM_BASE_CMD_BLKS/
9345 (ioa_cfg->hrrq_num - 1);
9346 ioa_cfg->hrrq[i].min_cmd_id =
9347 IPR_NUM_INTERNAL_CMD_BLKS +
9348 (i - 1) * entries_each_hrrq;
9349 ioa_cfg->hrrq[i].max_cmd_id =
9350 (IPR_NUM_INTERNAL_CMD_BLKS +
9351 i * entries_each_hrrq - 1);
9354 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9355 ioa_cfg->hrrq[i].min_cmd_id = 0;
9356 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9358 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9361 BUG_ON(ioa_cfg->hrrq_num == 0);
9363 i = IPR_NUM_CMD_BLKS -
9364 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9366 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9367 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9370 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9371 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
9374 ipr_free_cmd_blks(ioa_cfg);
9378 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9379 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9380 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9382 ioarcb = &ipr_cmd->ioarcb;
9383 ipr_cmd->dma_addr = dma_addr;
9385 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9387 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9389 ioarcb->host_response_handle = cpu_to_be32(i << 2);
9390 if (ioa_cfg->sis64) {
9391 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9392 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9393 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
9394 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
9396 ioarcb->write_ioadl_addr =
9397 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9398 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9399 ioarcb->ioasa_host_pci_addr =
9400 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
9402 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9403 ipr_cmd->cmd_index = i;
9404 ipr_cmd->ioa_cfg = ioa_cfg;
9405 ipr_cmd->sense_buffer_dma = dma_addr +
9406 offsetof(struct ipr_cmnd, sense_buffer);
9408 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9409 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9410 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9411 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9419 * ipr_alloc_mem - Allocate memory for an adapter
9420 * @ioa_cfg: ioa config struct
9423 * 0 on success / non-zero for error
9425 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
9427 struct pci_dev *pdev = ioa_cfg->pdev;
9428 int i, rc = -ENOMEM;
9431 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
9432 ioa_cfg->max_devs_supported, GFP_KERNEL);
9434 if (!ioa_cfg->res_entries)
9437 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
9438 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
9439 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9442 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9443 sizeof(struct ipr_misc_cbs),
9444 &ioa_cfg->vpd_cbs_dma,
9447 if (!ioa_cfg->vpd_cbs)
9448 goto out_free_res_entries;
9450 if (ipr_alloc_cmd_blks(ioa_cfg))
9451 goto out_free_vpd_cbs;
9453 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9454 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
9455 sizeof(u32) * ioa_cfg->hrrq[i].size,
9456 &ioa_cfg->hrrq[i].host_rrq_dma,
9459 if (!ioa_cfg->hrrq[i].host_rrq) {
9461 dma_free_coherent(&pdev->dev,
9462 sizeof(u32) * ioa_cfg->hrrq[i].size,
9463 ioa_cfg->hrrq[i].host_rrq,
9464 ioa_cfg->hrrq[i].host_rrq_dma);
9465 goto out_ipr_free_cmd_blocks;
9467 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9470 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9471 ioa_cfg->cfg_table_size,
9472 &ioa_cfg->cfg_table_dma,
9475 if (!ioa_cfg->u.cfg_table)
9476 goto out_free_host_rrq;
9478 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9479 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9480 sizeof(struct ipr_hostrcb),
9481 &ioa_cfg->hostrcb_dma[i],
9484 if (!ioa_cfg->hostrcb[i])
9485 goto out_free_hostrcb_dma;
9487 ioa_cfg->hostrcb[i]->hostrcb_dma =
9488 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
9489 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
9490 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9493 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
9494 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9496 if (!ioa_cfg->trace)
9497 goto out_free_hostrcb_dma;
9504 out_free_hostrcb_dma:
9506 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9507 ioa_cfg->hostrcb[i],
9508 ioa_cfg->hostrcb_dma[i]);
9510 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9511 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
9513 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9514 dma_free_coherent(&pdev->dev,
9515 sizeof(u32) * ioa_cfg->hrrq[i].size,
9516 ioa_cfg->hrrq[i].host_rrq,
9517 ioa_cfg->hrrq[i].host_rrq_dma);
9519 out_ipr_free_cmd_blocks:
9520 ipr_free_cmd_blks(ioa_cfg);
9522 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9523 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9524 out_free_res_entries:
9525 kfree(ioa_cfg->res_entries);
9530 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9531 * @ioa_cfg: ioa config struct
9536 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
9540 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9541 ioa_cfg->bus_attr[i].bus = i;
9542 ioa_cfg->bus_attr[i].qas_enabled = 0;
9543 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9544 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9545 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9547 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9552 * ipr_init_regs - Initialize IOA registers
9553 * @ioa_cfg: ioa config struct
9558 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9560 const struct ipr_interrupt_offsets *p;
9561 struct ipr_interrupts *t;
9564 p = &ioa_cfg->chip_cfg->regs;
9566 base = ioa_cfg->hdw_dma_regs;
9568 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9569 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9570 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9571 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9572 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9573 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9574 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9575 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9576 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9577 t->ioarrin_reg = base + p->ioarrin_reg;
9578 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9579 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9580 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9581 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9582 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9583 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9585 if (ioa_cfg->sis64) {
9586 t->init_feedback_reg = base + p->init_feedback_reg;
9587 t->dump_addr_reg = base + p->dump_addr_reg;
9588 t->dump_data_reg = base + p->dump_data_reg;
9589 t->endian_swap_reg = base + p->endian_swap_reg;
9594 * ipr_init_ioa_cfg - Initialize IOA config struct
9595 * @ioa_cfg: ioa config struct
9596 * @host: scsi host struct
9597 * @pdev: PCI dev struct
9602 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9603 struct Scsi_Host *host, struct pci_dev *pdev)
9607 ioa_cfg->host = host;
9608 ioa_cfg->pdev = pdev;
9609 ioa_cfg->log_level = ipr_log_level;
9610 ioa_cfg->doorbell = IPR_DOORBELL;
9611 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9612 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
9613 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9614 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9615 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9616 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9618 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9619 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9620 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9621 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
9622 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
9623 init_waitqueue_head(&ioa_cfg->reset_wait_q);
9624 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9625 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
9626 ioa_cfg->sdt_state = INACTIVE;
9628 ipr_initialize_bus_attr(ioa_cfg);
9629 ioa_cfg->max_devs_supported = ipr_max_devs;
9631 if (ioa_cfg->sis64) {
9632 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9633 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9634 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9635 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
9636 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9637 + ((sizeof(struct ipr_config_table_entry64)
9638 * ioa_cfg->max_devs_supported)));
9640 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9641 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9642 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9643 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
9644 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9645 + ((sizeof(struct ipr_config_table_entry)
9646 * ioa_cfg->max_devs_supported)));
9649 host->max_channel = IPR_VSET_BUS;
9650 host->unique_id = host->host_no;
9651 host->max_cmd_len = IPR_MAX_CDB_LEN;
9652 host->can_queue = ioa_cfg->max_cmds;
9653 pci_set_drvdata(pdev, ioa_cfg);
9655 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9656 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9657 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9658 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9660 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9662 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
9667 * ipr_get_chip_info - Find adapter chip information
9668 * @dev_id: PCI device id struct
9671 * ptr to chip information on success / NULL on failure
9673 static const struct ipr_chip_t *
9674 ipr_get_chip_info(const struct pci_device_id *dev_id)
9678 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9679 if (ipr_chip[i].vendor == dev_id->vendor &&
9680 ipr_chip[i].device == dev_id->device)
9681 return &ipr_chip[i];
9686 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9688 * @ioa_cfg: ioa config struct
9693 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9695 struct pci_dev *pdev = ioa_cfg->pdev;
9697 if (pci_channel_offline(pdev)) {
9698 wait_event_timeout(ioa_cfg->eeh_wait_q,
9699 !pci_channel_offline(pdev),
9700 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9701 pci_restore_state(pdev);
9705 static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9707 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
9710 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9711 entries[i].entry = i;
9713 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9714 entries, 1, ipr_number_of_msix);
9716 ipr_wait_for_pci_err_recovery(ioa_cfg);
9720 for (i = 0; i < vectors; i++)
9721 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9722 ioa_cfg->nvectors = vectors;
9727 static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9731 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9733 ipr_wait_for_pci_err_recovery(ioa_cfg);
9737 for (i = 0; i < vectors; i++)
9738 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9739 ioa_cfg->nvectors = vectors;
9744 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9746 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9748 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9749 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9750 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9751 ioa_cfg->vectors_info[vec_idx].
9752 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9756 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9760 for (i = 1; i < ioa_cfg->nvectors; i++) {
9761 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9764 ioa_cfg->vectors_info[i].desc,
9768 free_irq(ioa_cfg->vectors_info[i].vec,
9777 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9778 * @pdev: PCI device struct
9780 * Description: Simply set the msi_received flag to 1 indicating that
9781 * Message Signaled Interrupts are supported.
9784 * 0 on success / non-zero on failure
9786 static irqreturn_t ipr_test_intr(int irq, void *devp)
9788 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9789 unsigned long lock_flags = 0;
9790 irqreturn_t rc = IRQ_HANDLED;
9792 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
9793 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9795 ioa_cfg->msi_received = 1;
9796 wake_up(&ioa_cfg->msi_wait_q);
9798 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9803 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9804 * @pdev: PCI device struct
9806 * Description: The return value from pci_enable_msi_range() can not always be
9807 * trusted. This routine sets up and initiates a test interrupt to determine
9808 * if the interrupt is received via the ipr_test_intr() service routine.
9809 * If the tests fails, the driver will fall back to LSI.
9812 * 0 on success / non-zero on failure
9814 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
9817 volatile u32 int_reg;
9818 unsigned long lock_flags = 0;
9822 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9823 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9824 ioa_cfg->msi_received = 0;
9825 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9826 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
9827 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9828 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9830 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9831 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9833 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9835 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9837 } else if (ipr_debug)
9838 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9840 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
9841 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9842 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
9843 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9844 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9846 if (!ioa_cfg->msi_received) {
9847 /* MSI test failed */
9848 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9850 } else if (ipr_debug)
9851 dev_info(&pdev->dev, "MSI test succeeded.\n");
9853 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9855 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9856 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9858 free_irq(pdev->irq, ioa_cfg);
9865 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
9866 * @pdev: PCI device struct
9867 * @dev_id: PCI device id struct
9870 * 0 on success / non-zero on failure
9872 static int ipr_probe_ioa(struct pci_dev *pdev,
9873 const struct pci_device_id *dev_id)
9875 struct ipr_ioa_cfg *ioa_cfg;
9876 struct Scsi_Host *host;
9877 unsigned long ipr_regs_pci;
9878 void __iomem *ipr_regs;
9879 int rc = PCIBIOS_SUCCESSFUL;
9880 volatile u32 mask, uproc, interrupts;
9881 unsigned long lock_flags, driver_lock_flags;
9885 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
9886 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9889 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9894 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9895 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
9896 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
9898 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
9900 if (!ioa_cfg->ipr_chip) {
9901 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9902 dev_id->vendor, dev_id->device);
9903 goto out_scsi_host_put;
9906 /* set SIS 32 or SIS 64 */
9907 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
9908 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
9909 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
9910 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
9912 if (ipr_transop_timeout)
9913 ioa_cfg->transop_timeout = ipr_transop_timeout;
9914 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9915 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9917 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9919 ioa_cfg->revid = pdev->revision;
9921 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9923 ipr_regs_pci = pci_resource_start(pdev, 0);
9925 rc = pci_request_regions(pdev, IPR_NAME);
9928 "Couldn't register memory range of registers\n");
9929 goto out_scsi_host_put;
9932 rc = pci_enable_device(pdev);
9934 if (rc || pci_channel_offline(pdev)) {
9935 if (pci_channel_offline(pdev)) {
9936 ipr_wait_for_pci_err_recovery(ioa_cfg);
9937 rc = pci_enable_device(pdev);
9941 dev_err(&pdev->dev, "Cannot enable adapter\n");
9942 ipr_wait_for_pci_err_recovery(ioa_cfg);
9943 goto out_release_regions;
9947 ipr_regs = pci_ioremap_bar(pdev, 0);
9951 "Couldn't map memory range of registers\n");
9956 ioa_cfg->hdw_dma_regs = ipr_regs;
9957 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9958 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9960 ipr_init_regs(ioa_cfg);
9962 if (ioa_cfg->sis64) {
9963 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9965 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9966 rc = dma_set_mask_and_coherent(&pdev->dev,
9970 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9973 dev_err(&pdev->dev, "Failed to set DMA mask\n");
9977 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9978 ioa_cfg->chip_cfg->cache_line_size);
9980 if (rc != PCIBIOS_SUCCESSFUL) {
9981 dev_err(&pdev->dev, "Write of cache line size failed\n");
9982 ipr_wait_for_pci_err_recovery(ioa_cfg);
9987 /* Issue MMIO read to ensure card is not in EEH */
9988 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9989 ipr_wait_for_pci_err_recovery(ioa_cfg);
9991 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9992 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9993 IPR_MAX_MSIX_VECTORS);
9994 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9997 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
9998 ipr_enable_msix(ioa_cfg) == 0)
9999 ioa_cfg->intr_flag = IPR_USE_MSIX;
10000 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
10001 ipr_enable_msi(ioa_cfg) == 0)
10002 ioa_cfg->intr_flag = IPR_USE_MSI;
10004 ioa_cfg->intr_flag = IPR_USE_LSI;
10005 ioa_cfg->nvectors = 1;
10006 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10009 pci_set_master(pdev);
10011 if (pci_channel_offline(pdev)) {
10012 ipr_wait_for_pci_err_recovery(ioa_cfg);
10013 pci_set_master(pdev);
10014 if (pci_channel_offline(pdev)) {
10016 goto out_msi_disable;
10020 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10021 ioa_cfg->intr_flag == IPR_USE_MSIX) {
10022 rc = ipr_test_msi(ioa_cfg, pdev);
10023 if (rc == -EOPNOTSUPP) {
10024 ipr_wait_for_pci_err_recovery(ioa_cfg);
10025 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10026 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10027 pci_disable_msi(pdev);
10028 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10029 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10030 pci_disable_msix(pdev);
10033 ioa_cfg->intr_flag = IPR_USE_LSI;
10034 ioa_cfg->nvectors = 1;
10037 goto out_msi_disable;
10039 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10040 dev_info(&pdev->dev,
10041 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10042 ioa_cfg->nvectors, pdev->irq);
10043 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10044 dev_info(&pdev->dev,
10045 "Request for %d MSIXs succeeded.",
10046 ioa_cfg->nvectors);
10050 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10051 (unsigned int)num_online_cpus(),
10052 (unsigned int)IPR_MAX_HRRQ_NUM);
10054 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
10055 goto out_msi_disable;
10057 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
10058 goto out_msi_disable;
10060 rc = ipr_alloc_mem(ioa_cfg);
10062 dev_err(&pdev->dev,
10063 "Couldn't allocate enough memory for device driver!\n");
10064 goto out_msi_disable;
10067 /* Save away PCI config space for use following IOA reset */
10068 rc = pci_save_state(pdev);
10070 if (rc != PCIBIOS_SUCCESSFUL) {
10071 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10073 goto cleanup_nolog;
10077 * If HRRQ updated interrupt is not masked, or reset alert is set,
10078 * the card is in an unknown state and needs a hard reset
10080 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10081 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10082 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
10083 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10084 ioa_cfg->needs_hard_reset = 1;
10085 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
10086 ioa_cfg->needs_hard_reset = 1;
10087 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10088 ioa_cfg->ioa_unit_checked = 1;
10090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10091 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10094 if (ioa_cfg->intr_flag == IPR_USE_MSI
10095 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10096 name_msi_vectors(ioa_cfg);
10097 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10099 ioa_cfg->vectors_info[0].desc,
10100 &ioa_cfg->hrrq[0]);
10102 rc = ipr_request_other_msi_irqs(ioa_cfg);
10104 rc = request_irq(pdev->irq, ipr_isr,
10106 IPR_NAME, &ioa_cfg->hrrq[0]);
10109 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10111 goto cleanup_nolog;
10114 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10115 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10116 ioa_cfg->needs_warm_reset = 1;
10117 ioa_cfg->reset = ipr_reset_slot_reset;
10119 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10120 WQ_MEM_RECLAIM, host->host_no);
10122 if (!ioa_cfg->reset_work_q) {
10123 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10127 ioa_cfg->reset = ipr_reset_start_bist;
10129 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10130 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
10131 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10138 ipr_free_irqs(ioa_cfg);
10140 ipr_free_mem(ioa_cfg);
10142 ipr_wait_for_pci_err_recovery(ioa_cfg);
10143 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10144 pci_disable_msi(pdev);
10145 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10146 pci_disable_msix(pdev);
10150 pci_disable_device(pdev);
10151 out_release_regions:
10152 pci_release_regions(pdev);
10154 scsi_host_put(host);
10159 * ipr_initiate_ioa_bringdown - Bring down an adapter
10160 * @ioa_cfg: ioa config struct
10161 * @shutdown_type: shutdown type
10163 * Description: This function will initiate bringing down the adapter.
10164 * This consists of issuing an IOA shutdown to the adapter
10165 * to flush the cache, and running BIST.
10166 * If the caller needs to wait on the completion of the reset,
10167 * the caller must sleep on the reset_wait_q.
10172 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10173 enum ipr_shutdown_type shutdown_type)
10176 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10177 ioa_cfg->sdt_state = ABORT_DUMP;
10178 ioa_cfg->reset_retries = 0;
10179 ioa_cfg->in_ioa_bringdown = 1;
10180 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10185 * __ipr_remove - Remove a single adapter
10186 * @pdev: pci device struct
10188 * Adapter hot plug remove entry point.
10193 static void __ipr_remove(struct pci_dev *pdev)
10195 unsigned long host_lock_flags = 0;
10196 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10198 unsigned long driver_lock_flags;
10201 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10202 while (ioa_cfg->in_reset_reload) {
10203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10204 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10205 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10208 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10209 spin_lock(&ioa_cfg->hrrq[i]._lock);
10210 ioa_cfg->hrrq[i].removing_ioa = 1;
10211 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10214 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10216 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10217 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10218 flush_work(&ioa_cfg->work_q);
10219 if (ioa_cfg->reset_work_q)
10220 flush_workqueue(ioa_cfg->reset_work_q);
10221 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
10222 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10224 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10225 list_del(&ioa_cfg->queue);
10226 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10228 if (ioa_cfg->sdt_state == ABORT_DUMP)
10229 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10232 ipr_free_all_resources(ioa_cfg);
10238 * ipr_remove - IOA hot plug remove entry point
10239 * @pdev: pci device struct
10241 * Adapter hot plug remove entry point.
10246 static void ipr_remove(struct pci_dev *pdev)
10248 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10252 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10254 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10256 scsi_remove_host(ioa_cfg->host);
10258 __ipr_remove(pdev);
10264 * ipr_probe - Adapter hot plug add entry point
10267 * 0 on success / non-zero on failure
10269 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
10271 struct ipr_ioa_cfg *ioa_cfg;
10274 rc = ipr_probe_ioa(pdev, dev_id);
10279 ioa_cfg = pci_get_drvdata(pdev);
10280 rc = ipr_probe_ioa_part2(ioa_cfg);
10283 __ipr_remove(pdev);
10287 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10290 __ipr_remove(pdev);
10294 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
10298 scsi_remove_host(ioa_cfg->host);
10299 __ipr_remove(pdev);
10303 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
10307 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10309 scsi_remove_host(ioa_cfg->host);
10310 __ipr_remove(pdev);
10314 scsi_scan_host(ioa_cfg->host);
10315 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10317 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10318 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10319 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10320 ioa_cfg->iopoll_weight, ipr_iopoll);
10321 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10325 schedule_work(&ioa_cfg->work_q);
10330 * ipr_shutdown - Shutdown handler.
10331 * @pdev: pci device struct
10333 * This function is invoked upon system shutdown/reboot. It will issue
10334 * an adapter shutdown to the adapter to flush the write cache.
10339 static void ipr_shutdown(struct pci_dev *pdev)
10341 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10342 unsigned long lock_flags = 0;
10343 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
10346 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10347 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
10348 ioa_cfg->iopoll_weight = 0;
10349 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10350 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10353 while (ioa_cfg->in_reset_reload) {
10354 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10355 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10356 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10359 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10360 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10362 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
10363 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10364 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10365 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
10366 ipr_free_irqs(ioa_cfg);
10367 pci_disable_device(ioa_cfg->pdev);
10371 static struct pci_device_id ipr_pci_table[] = {
10372 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10373 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
10374 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10375 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
10376 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10377 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
10378 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
10379 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
10380 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10381 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
10382 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10383 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
10384 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10385 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
10386 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
10387 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10388 IPR_USE_LONG_TRANSOP_TIMEOUT },
10389 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10390 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10391 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10392 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10393 IPR_USE_LONG_TRANSOP_TIMEOUT },
10394 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
10395 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10396 IPR_USE_LONG_TRANSOP_TIMEOUT },
10397 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10398 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
10399 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10400 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10401 IPR_USE_LONG_TRANSOP_TIMEOUT},
10402 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
10403 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10404 IPR_USE_LONG_TRANSOP_TIMEOUT },
10405 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10406 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10407 IPR_USE_LONG_TRANSOP_TIMEOUT },
10408 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10409 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
10410 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10411 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
10412 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10413 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
10414 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
10415 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
10416 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
10417 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10418 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
10419 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10420 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10421 IPR_USE_LONG_TRANSOP_TIMEOUT },
10422 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
10423 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10424 IPR_USE_LONG_TRANSOP_TIMEOUT },
10425 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10426 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10427 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10428 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10429 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10430 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
10431 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10432 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
10433 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10434 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
10435 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10436 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
10437 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10438 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
10439 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10440 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
10441 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10442 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
10443 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10444 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10445 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10446 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
10447 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10448 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10449 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10450 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10451 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10452 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10453 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10454 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
10455 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10456 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10457 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10458 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10459 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10460 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10461 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10462 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10463 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10464 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10465 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10466 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10467 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10468 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10469 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10470 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
10471 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10472 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10473 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10474 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10475 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10476 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
10479 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10481 static const struct pci_error_handlers ipr_err_handler = {
10482 .error_detected = ipr_pci_error_detected,
10483 .mmio_enabled = ipr_pci_mmio_enabled,
10484 .slot_reset = ipr_pci_slot_reset,
10487 static struct pci_driver ipr_driver = {
10489 .id_table = ipr_pci_table,
10490 .probe = ipr_probe,
10491 .remove = ipr_remove,
10492 .shutdown = ipr_shutdown,
10493 .err_handler = &ipr_err_handler,
10497 * ipr_halt_done - Shutdown prepare completion
10502 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10504 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
10508 * ipr_halt - Issue shutdown prepare to all adapters
10511 * NOTIFY_OK on success / NOTIFY_DONE on failure
10513 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10515 struct ipr_cmnd *ipr_cmd;
10516 struct ipr_ioa_cfg *ioa_cfg;
10517 unsigned long flags = 0, driver_lock_flags;
10519 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10520 return NOTIFY_DONE;
10522 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
10524 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10525 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10526 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10527 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
10528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10532 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10533 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10534 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10535 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10536 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10538 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10541 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
10546 static struct notifier_block ipr_notifier = {
10551 * ipr_init - Module entry point
10554 * 0 on success / negative value on failure
10556 static int __init ipr_init(void)
10558 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10559 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10561 register_reboot_notifier(&ipr_notifier);
10562 return pci_register_driver(&ipr_driver);
10566 * ipr_exit - Module unload
10568 * Module unload entry point.
10573 static void __exit ipr_exit(void)
10575 unregister_reboot_notifier(&ipr_notifier);
10576 pci_unregister_driver(&ipr_driver);
10579 module_init(ipr_init);
10580 module_exit(ipr_exit);