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 DEFINE_SPINLOCK(ipr_driver_lock);
103 /* This table describes the differences between DMA controller chips */
104 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
107 .cache_line_size = 0x20,
110 .set_interrupt_mask_reg = 0x0022C,
111 .clr_interrupt_mask_reg = 0x00230,
112 .clr_interrupt_mask_reg32 = 0x00230,
113 .sense_interrupt_mask_reg = 0x0022C,
114 .sense_interrupt_mask_reg32 = 0x0022C,
115 .clr_interrupt_reg = 0x00228,
116 .clr_interrupt_reg32 = 0x00228,
117 .sense_interrupt_reg = 0x00224,
118 .sense_interrupt_reg32 = 0x00224,
119 .ioarrin_reg = 0x00404,
120 .sense_uproc_interrupt_reg = 0x00214,
121 .sense_uproc_interrupt_reg32 = 0x00214,
122 .set_uproc_interrupt_reg = 0x00214,
123 .set_uproc_interrupt_reg32 = 0x00214,
124 .clr_uproc_interrupt_reg = 0x00218,
125 .clr_uproc_interrupt_reg32 = 0x00218
128 { /* Snipe and Scamp */
130 .cache_line_size = 0x20,
133 .set_interrupt_mask_reg = 0x00288,
134 .clr_interrupt_mask_reg = 0x0028C,
135 .clr_interrupt_mask_reg32 = 0x0028C,
136 .sense_interrupt_mask_reg = 0x00288,
137 .sense_interrupt_mask_reg32 = 0x00288,
138 .clr_interrupt_reg = 0x00284,
139 .clr_interrupt_reg32 = 0x00284,
140 .sense_interrupt_reg = 0x00280,
141 .sense_interrupt_reg32 = 0x00280,
142 .ioarrin_reg = 0x00504,
143 .sense_uproc_interrupt_reg = 0x00290,
144 .sense_uproc_interrupt_reg32 = 0x00290,
145 .set_uproc_interrupt_reg = 0x00290,
146 .set_uproc_interrupt_reg32 = 0x00290,
147 .clr_uproc_interrupt_reg = 0x00294,
148 .clr_uproc_interrupt_reg32 = 0x00294
153 .cache_line_size = 0x20,
156 .set_interrupt_mask_reg = 0x00010,
157 .clr_interrupt_mask_reg = 0x00018,
158 .clr_interrupt_mask_reg32 = 0x0001C,
159 .sense_interrupt_mask_reg = 0x00010,
160 .sense_interrupt_mask_reg32 = 0x00014,
161 .clr_interrupt_reg = 0x00008,
162 .clr_interrupt_reg32 = 0x0000C,
163 .sense_interrupt_reg = 0x00000,
164 .sense_interrupt_reg32 = 0x00004,
165 .ioarrin_reg = 0x00070,
166 .sense_uproc_interrupt_reg = 0x00020,
167 .sense_uproc_interrupt_reg32 = 0x00024,
168 .set_uproc_interrupt_reg = 0x00020,
169 .set_uproc_interrupt_reg32 = 0x00024,
170 .clr_uproc_interrupt_reg = 0x00028,
171 .clr_uproc_interrupt_reg32 = 0x0002C,
172 .init_feedback_reg = 0x0005C,
173 .dump_addr_reg = 0x00064,
174 .dump_data_reg = 0x00068,
175 .endian_swap_reg = 0x00084
180 static const struct ipr_chip_t ipr_chip[] = {
181 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
187 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
192 static int ipr_max_bus_speeds [] = {
193 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
196 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
197 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
198 module_param_named(max_speed, ipr_max_speed, uint, 0);
199 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
200 module_param_named(log_level, ipr_log_level, uint, 0);
201 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
202 module_param_named(testmode, ipr_testmode, int, 0);
203 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
204 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
205 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
206 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
207 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
208 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
209 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
210 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
211 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
212 module_param_named(max_devs, ipr_max_devs, int, 0);
213 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
214 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
215 MODULE_LICENSE("GPL");
216 MODULE_VERSION(IPR_DRIVER_VERSION);
218 /* A constant array of IOASCs/URCs/Error Messages */
220 struct ipr_error_table_t ipr_error_table[] = {
221 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
222 "8155: An unknown error was received"},
224 "Soft underlength error"},
226 "Command to be cancelled not found"},
228 "Qualified success"},
229 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
230 "FFFE: Soft device bus error recovered by the IOA"},
231 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
232 "4101: Soft device bus fabric error"},
233 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
234 "FFFC: Logical block guard error recovered by the device"},
235 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FFFC: Logical block reference tag error recovered by the device"},
237 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered scatter list tag / sequence number error"},
239 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
241 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
242 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
243 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
244 "FFFD: Recovered logical block reference tag error detected by the IOA"},
245 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFD: Logical block guard error recovered by the IOA"},
247 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFF9: Device sector reassign successful"},
249 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
250 "FFF7: Media error recovered by device rewrite procedures"},
251 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
252 "7001: IOA sector reassignment successful"},
253 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FFF9: Soft media error. Sector reassignment recommended"},
255 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFF7: Media error recovered by IOA rewrite procedures"},
257 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FF3D: Soft PCI bus error recovered by the IOA"},
259 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FFF6: Device hardware error recovered by the IOA"},
261 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFF6: Device hardware error recovered by the device"},
263 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
264 "FF3D: Soft IOA error recovered by the IOA"},
265 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFFA: Undefined device response recovered by the IOA"},
267 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
268 "FFF6: Device bus error, message or command phase"},
269 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
270 "FFFE: Task Management Function failed"},
271 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
272 "FFF6: Failure prediction threshold exceeded"},
273 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
274 "8009: Impending cache battery pack failure"},
276 "34FF: Disk device format in progress"},
277 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
278 "9070: IOA requested reset"},
280 "Synchronization required"},
282 "No ready, IOA shutdown"},
284 "Not ready, IOA has been shutdown"},
285 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
286 "3020: Storage subsystem configuration error"},
288 "FFF5: Medium error, data unreadable, recommend reassign"},
290 "7000: Medium error, data unreadable, do not reassign"},
291 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
292 "FFF3: Disk media format bad"},
293 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
294 "3002: Addressed device failed to respond to selection"},
295 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
296 "3100: Device bus error"},
297 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
298 "3109: IOA timed out a device command"},
300 "3120: SCSI bus is not operational"},
301 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
302 "4100: Hard device bus fabric error"},
303 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
304 "310C: Logical block guard error detected by the device"},
305 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
306 "310C: Logical block reference tag error detected by the device"},
307 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Scatter list tag / sequence number error"},
309 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
310 "8150: Logical block CRC error on IOA to Host transfer"},
311 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
312 "4170: Logical block sequence number error on IOA to Host transfer"},
313 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "310D: Logical block reference tag error detected by the IOA"},
315 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
316 "310D: Logical block guard error detected by the IOA"},
317 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
318 "9000: IOA reserved area data check"},
319 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
320 "9001: IOA reserved area invalid data pattern"},
321 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
322 "9002: IOA reserved area LRC error"},
323 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
324 "Hardware Error, IOA metadata access error"},
325 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
326 "102E: Out of alternate sectors for disk storage"},
327 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
328 "FFF4: Data transfer underlength error"},
329 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
330 "FFF4: Data transfer overlength error"},
331 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
332 "3400: Logical unit failure"},
333 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
334 "FFF4: Device microcode is corrupt"},
335 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
336 "8150: PCI bus error"},
338 "Unsupported device bus message received"},
339 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
340 "FFF4: Disk device problem"},
341 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
342 "8150: Permanent IOA failure"},
343 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
344 "3010: Disk device returned wrong response to IOA"},
345 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
346 "8151: IOA microcode error"},
348 "Device bus status error"},
349 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
350 "8157: IOA error requiring IOA reset to recover"},
352 "ATA device status error"},
354 "Message reject received from the device"},
355 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
356 "8008: A permanent cache battery pack failure occurred"},
357 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
358 "9090: Disk unit has been modified after the last known status"},
359 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
360 "9081: IOA detected device error"},
361 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
362 "9082: IOA detected device error"},
363 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
364 "3110: Device bus error, message or command phase"},
365 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
366 "3110: SAS Command / Task Management Function failed"},
367 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
368 "9091: Incorrect hardware configuration change has been detected"},
369 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
370 "9073: Invalid multi-adapter configuration"},
371 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
372 "4010: Incorrect connection between cascaded expanders"},
373 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4020: Connections exceed IOA design limits"},
375 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
376 "4030: Incorrect multipath connection"},
377 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
378 "4110: Unsupported enclosure function"},
379 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
380 "FFF4: Command to logical unit failed"},
382 "Illegal request, invalid request type or request packet"},
384 "Illegal request, invalid resource handle"},
386 "Illegal request, commands not allowed to this device"},
388 "Illegal request, command not allowed to a secondary adapter"},
390 "Illegal request, command not allowed to a non-optimized resource"},
392 "Illegal request, invalid field in parameter list"},
394 "Illegal request, parameter not supported"},
396 "Illegal request, parameter value invalid"},
398 "Illegal request, command sequence error"},
400 "Illegal request, dual adapter support not enabled"},
401 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
402 "9031: Array protection temporarily suspended, protection resuming"},
403 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
404 "9040: Array protection temporarily suspended, protection resuming"},
405 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
406 "3140: Device bus not ready to ready transition"},
407 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
408 "FFFB: SCSI bus was reset"},
410 "FFFE: SCSI bus transition to single ended"},
412 "FFFE: SCSI bus transition to LVD"},
413 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
414 "FFFB: SCSI bus was reset by another initiator"},
415 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
416 "3029: A device replacement has occurred"},
417 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
418 "9051: IOA cache data exists for a missing or failed device"},
419 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
420 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
421 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
422 "9025: Disk unit is not supported at its physical location"},
423 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
424 "3020: IOA detected a SCSI bus configuration error"},
425 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
426 "3150: SCSI bus configuration error"},
427 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
428 "9074: Asymmetric advanced function disk configuration"},
429 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
430 "4040: Incomplete multipath connection between IOA and enclosure"},
431 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
432 "4041: Incomplete multipath connection between enclosure and device"},
433 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
434 "9075: Incomplete multipath connection between IOA and remote IOA"},
435 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
436 "9076: Configuration error, missing remote IOA"},
437 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
438 "4050: Enclosure does not support a required multipath function"},
439 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
440 "4070: Logically bad block written on device"},
441 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
442 "9041: Array protection temporarily suspended"},
443 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
444 "9042: Corrupt array parity detected on specified device"},
445 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
446 "9030: Array no longer protected due to missing or failed disk unit"},
447 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
448 "9071: Link operational transition"},
449 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
450 "9072: Link not operational transition"},
451 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
452 "9032: Array exposed but still protected"},
453 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
454 "70DD: Device forced failed by disrupt device command"},
455 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
456 "4061: Multipath redundancy level got better"},
457 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
458 "4060: Multipath redundancy level got worse"},
460 "Failure due to other device"},
461 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9008: IOA does not support functions expected by devices"},
463 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
464 "9010: Cache data associated with attached devices cannot be found"},
465 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
466 "9011: Cache data belongs to devices other than those attached"},
467 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9020: Array missing 2 or more devices with only 1 device present"},
469 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9021: Array missing 2 or more devices with 2 or more devices present"},
471 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
472 "9022: Exposed array is missing a required device"},
473 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
474 "9023: Array member(s) not at required physical locations"},
475 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
476 "9024: Array not functional due to present hardware configuration"},
477 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
478 "9026: Array not functional due to present hardware configuration"},
479 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "9027: Array is missing a device and parity is out of sync"},
481 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
482 "9028: Maximum number of arrays already exist"},
483 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9050: Required cache data cannot be located for a disk unit"},
485 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9052: Cache data exists for a device that has been modified"},
487 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9054: IOA resources not available due to previous problems"},
489 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9092: Disk unit requires initialization before use"},
491 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9029: Incorrect hardware configuration change has been detected"},
493 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9060: One or more disk pairs are missing from an array"},
495 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
496 "9061: One or more disks are missing from an array"},
497 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
498 "9062: One or more disks are missing from an array"},
499 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
500 "9063: Maximum number of functional arrays has been exceeded"},
502 "Aborted command, invalid descriptor"},
504 "Command terminated by host"}
507 static const struct ipr_ses_table_entry ipr_ses_table[] = {
508 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
509 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
510 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
511 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
512 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
513 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
514 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
516 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
517 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
518 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
519 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
520 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
524 * Function Prototypes
526 static int ipr_reset_alert(struct ipr_cmnd *);
527 static void ipr_process_ccn(struct ipr_cmnd *);
528 static void ipr_process_error(struct ipr_cmnd *);
529 static void ipr_reset_ioa_job(struct ipr_cmnd *);
530 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
531 enum ipr_shutdown_type);
533 #ifdef CONFIG_SCSI_IPR_TRACE
535 * ipr_trc_hook - Add a trace entry to the driver trace
536 * @ipr_cmd: ipr command struct
538 * @add_data: additional data
543 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
544 u8 type, u32 add_data)
546 struct ipr_trace_entry *trace_entry;
547 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
549 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
550 trace_entry->time = jiffies;
551 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
552 trace_entry->type = type;
553 if (ipr_cmd->ioa_cfg->sis64)
554 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
556 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
557 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
558 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
559 trace_entry->u.add_data = add_data;
562 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
566 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
567 * @ipr_cmd: ipr command struct
572 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
574 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
575 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
576 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
577 dma_addr_t dma_addr = ipr_cmd->dma_addr;
579 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
580 ioarcb->data_transfer_length = 0;
581 ioarcb->read_data_transfer_length = 0;
582 ioarcb->ioadl_len = 0;
583 ioarcb->read_ioadl_len = 0;
585 if (ipr_cmd->ioa_cfg->sis64) {
586 ioarcb->u.sis64_addr_data.data_ioadl_addr =
587 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
588 ioasa64->u.gata.status = 0;
590 ioarcb->write_ioadl_addr =
591 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
592 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
593 ioasa->u.gata.status = 0;
596 ioasa->hdr.ioasc = 0;
597 ioasa->hdr.residual_data_len = 0;
598 ipr_cmd->scsi_cmd = NULL;
600 ipr_cmd->sense_buffer[0] = 0;
601 ipr_cmd->dma_use_sg = 0;
605 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
606 * @ipr_cmd: ipr command struct
611 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
613 ipr_reinit_ipr_cmnd(ipr_cmd);
614 ipr_cmd->u.scratch = 0;
615 ipr_cmd->sibling = NULL;
616 init_timer(&ipr_cmd->timer);
620 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
621 * @ioa_cfg: ioa config struct
624 * pointer to ipr command struct
627 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
629 struct ipr_cmnd *ipr_cmd;
631 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
632 list_del(&ipr_cmd->queue);
633 ipr_init_ipr_cmnd(ipr_cmd);
639 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
640 * @ioa_cfg: ioa config struct
641 * @clr_ints: interrupts to clear
643 * This function masks all interrupts on the adapter, then clears the
644 * interrupts specified in the mask
649 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
652 volatile u32 int_reg;
654 /* Stop new interrupts */
655 ioa_cfg->allow_interrupts = 0;
657 /* Set interrupt mask to stop all new interrupts */
659 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
661 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
663 /* Clear any pending interrupts */
665 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
666 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
667 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
671 * ipr_save_pcix_cmd_reg - Save PCI-X command register
672 * @ioa_cfg: ioa config struct
675 * 0 on success / -EIO on failure
677 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
679 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
681 if (pcix_cmd_reg == 0)
684 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
685 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
686 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
690 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
695 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
696 * @ioa_cfg: ioa config struct
699 * 0 on success / -EIO on failure
701 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
703 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
706 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
707 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
708 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
717 * ipr_sata_eh_done - done function for aborted SATA commands
718 * @ipr_cmd: ipr command struct
720 * This function is invoked for ops generated to SATA
721 * devices which are being aborted.
726 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
729 struct ata_queued_cmd *qc = ipr_cmd->qc;
730 struct ipr_sata_port *sata_port = qc->ap->private_data;
732 qc->err_mask |= AC_ERR_OTHER;
733 sata_port->ioasa.status |= ATA_BUSY;
734 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
739 * ipr_scsi_eh_done - mid-layer done function for aborted ops
740 * @ipr_cmd: ipr command struct
742 * This function is invoked by the interrupt handler for
743 * ops generated by the SCSI mid-layer which are being aborted.
748 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
751 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
753 scsi_cmd->result |= (DID_ERROR << 16);
755 scsi_dma_unmap(ipr_cmd->scsi_cmd);
756 scsi_cmd->scsi_done(scsi_cmd);
757 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
761 * ipr_fail_all_ops - Fails all outstanding ops.
762 * @ioa_cfg: ioa config struct
764 * This function fails all outstanding ops.
769 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
771 struct ipr_cmnd *ipr_cmd, *temp;
774 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
775 list_del(&ipr_cmd->queue);
777 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
778 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
780 if (ipr_cmd->scsi_cmd)
781 ipr_cmd->done = ipr_scsi_eh_done;
782 else if (ipr_cmd->qc)
783 ipr_cmd->done = ipr_sata_eh_done;
785 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
786 del_timer(&ipr_cmd->timer);
787 ipr_cmd->done(ipr_cmd);
794 * ipr_send_command - Send driver initiated requests.
795 * @ipr_cmd: ipr command struct
797 * This function sends a command to the adapter using the correct write call.
798 * In the case of sis64, calculate the ioarcb size required. Then or in the
804 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
807 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
809 if (ioa_cfg->sis64) {
810 /* The default size is 256 bytes */
811 send_dma_addr |= 0x1;
813 /* If the number of ioadls * size of ioadl > 128 bytes,
814 then use a 512 byte ioarcb */
815 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
816 send_dma_addr |= 0x4;
817 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
819 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
823 * ipr_do_req - Send driver initiated requests.
824 * @ipr_cmd: ipr command struct
825 * @done: done function
826 * @timeout_func: timeout function
827 * @timeout: timeout value
829 * This function sends the specified command to the adapter with the
830 * timeout given. The done function is invoked on command completion.
835 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
836 void (*done) (struct ipr_cmnd *),
837 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
841 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
843 ipr_cmd->done = done;
845 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
846 ipr_cmd->timer.expires = jiffies + timeout;
847 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
849 add_timer(&ipr_cmd->timer);
851 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
853 ipr_send_command(ipr_cmd);
857 * ipr_internal_cmd_done - Op done function for an internally generated op.
858 * @ipr_cmd: ipr command struct
860 * This function is the op done function for an internally generated,
861 * blocking op. It simply wakes the sleeping thread.
866 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
868 if (ipr_cmd->sibling)
869 ipr_cmd->sibling = NULL;
871 complete(&ipr_cmd->completion);
875 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
876 * @ipr_cmd: ipr command struct
877 * @dma_addr: dma address
878 * @len: transfer length
879 * @flags: ioadl flag value
881 * This function initializes an ioadl in the case where there is only a single
887 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
890 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
891 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
893 ipr_cmd->dma_use_sg = 1;
895 if (ipr_cmd->ioa_cfg->sis64) {
896 ioadl64->flags = cpu_to_be32(flags);
897 ioadl64->data_len = cpu_to_be32(len);
898 ioadl64->address = cpu_to_be64(dma_addr);
900 ipr_cmd->ioarcb.ioadl_len =
901 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
902 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
904 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
905 ioadl->address = cpu_to_be32(dma_addr);
907 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
908 ipr_cmd->ioarcb.read_ioadl_len =
909 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
910 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
912 ipr_cmd->ioarcb.ioadl_len =
913 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
914 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
920 * ipr_send_blocking_cmd - Send command and sleep on its completion.
921 * @ipr_cmd: ipr command struct
922 * @timeout_func: function to invoke if command times out
928 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
929 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
932 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
934 init_completion(&ipr_cmd->completion);
935 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
937 spin_unlock_irq(ioa_cfg->host->host_lock);
938 wait_for_completion(&ipr_cmd->completion);
939 spin_lock_irq(ioa_cfg->host->host_lock);
943 * ipr_send_hcam - Send an HCAM to the adapter.
944 * @ioa_cfg: ioa config struct
946 * @hostrcb: hostrcb struct
948 * This function will send a Host Controlled Async command to the adapter.
949 * If HCAMs are currently not allowed to be issued to the adapter, it will
950 * place the hostrcb on the free queue.
955 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
956 struct ipr_hostrcb *hostrcb)
958 struct ipr_cmnd *ipr_cmd;
959 struct ipr_ioarcb *ioarcb;
961 if (ioa_cfg->allow_cmds) {
962 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
963 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
964 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
966 ipr_cmd->u.hostrcb = hostrcb;
967 ioarcb = &ipr_cmd->ioarcb;
969 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
970 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
971 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
972 ioarcb->cmd_pkt.cdb[1] = type;
973 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
974 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
976 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
977 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
979 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
980 ipr_cmd->done = ipr_process_ccn;
982 ipr_cmd->done = ipr_process_error;
984 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
986 ipr_send_command(ipr_cmd);
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
993 * ipr_update_ata_class - Update the ata class in the resource entry
994 * @res: resource entry struct
995 * @proto: cfgte device bus protocol value
1000 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1012 res->ata_class = ATA_DEV_UNKNOWN;
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
1020 * @cfgtew: config table entry wrapper struct
1025 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1033 res->needs_sync_complete = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1039 res->sata_port = NULL;
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
1045 res->type = cfgtew->u.cfgte64->res_type;
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1051 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1052 sizeof(res->dev_lun.scsi_lun));
1053 res->lun = scsilun_to_int(&res->dev_lun);
1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1059 res->target = gscsi_res->target;
1064 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1065 ioa_cfg->max_devs_supported);
1066 set_bit(res->target, ioa_cfg->target_ids);
1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
1098 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1101 ipr_update_ata_class(res, proto);
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1110 * 1 if the devices are the same / 0 otherwise
1112 static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1118 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1119 sizeof(cfgtew->u.cfgte64->lun))) {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1133 * ipr_format_res_path - Format the resource path for printing.
1134 * @res_path: resource path
1140 static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1161 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
1171 res->type = cfgtew->u.cfgte64->res_type;
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1193 ipr_format_res_path(res->res_path, buffer,
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1210 ipr_update_ata_class(res, proto);
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1222 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227 if (!ioa_cfg->sis64)
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 clear_bit(res->target, ioa_cfg->target_ids);
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1252 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1253 struct ipr_hostrcb *hostrcb)
1255 struct ipr_resource_entry *res = NULL;
1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1270 if (res->res_handle == cc_res_handle) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1287 list_del(&res->queue);
1288 ipr_init_res_entry(res, &cfgtew);
1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1292 ipr_update_res_entry(res, &cfgtew);
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 res->del_from_ml = 1;
1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
1301 ipr_clear_res_target(res);
1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1304 } else if (!res->sdev || res->del_from_ml) {
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1323 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1352 * new length of string
1354 static int strip_and_pad_whitespace(int i, char *buf)
1356 while (i && buf[i] == ' ')
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1372 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1391 * ipr_log_vpd - Log the passed VPD to the error log.
1392 * @vpd: vendor/product id/sn struct
1397 static void ipr_log_vpd(struct ipr_vpd *vpd)
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1422 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1437 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1452 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1455 struct ipr_hostrcb_type_12_error *error;
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1488 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
1496 ipr_log_vpd(&error->ioa_vpd);
1497 ipr_err("Adapter Card Information:\n");
1498 ipr_log_vpd(&error->cfc_vpd);
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1503 ipr_err("Adapter Card Information:\n");
1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1520 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1533 dev_entry = error->dev;
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1560 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1574 dev_entry = error->dev;
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1579 ipr_err("Device %d : %s", i + 1,
1580 ipr_format_res_path(dev_entry->res_path, buffer,
1582 ipr_log_ext_vpd(&dev_entry->vpd);
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1603 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1616 dev_entry = error->dev;
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1622 ipr_log_vpd(&dev_entry->vpd);
1624 ipr_err("-----New Device Information-----\n");
1625 ipr_log_vpd(&dev_entry->new_vpd);
1627 ipr_err("Cache Directory Card Information:\n");
1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1630 ipr_err("Adapter Card Information:\n");
1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1650 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1673 ARRAY_SIZE(error->array_member));
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1682 ipr_err("Array Member %d:\n", i);
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1701 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1722 array_entry = error->array_member;
1724 for (i = 0; i < 18; i++) {
1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1729 ipr_err("Exposed Array Member %d:\n", i);
1731 ipr_err("Array Member %d:\n", i);
1733 ipr_log_vpd(&array_entry->vpd);
1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1742 array_entry = error->array_member2;
1749 * ipr_log_hex_data - Log additional hex IOA error data.
1750 * @ioa_cfg: ioa config struct
1751 * @data: IOA error data
1757 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767 for (i = 0; i < len / 4; i += 4) {
1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1784 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1787 struct ipr_hostrcb_type_17_error *error;
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1795 strim(error->failure_reason);
1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1800 ipr_log_hex_data(ioa_cfg, error->data,
1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1814 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1817 struct ipr_hostrcb_type_07_error *error;
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1821 strim(error->failure_reason);
1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1826 ipr_log_hex_data(ioa_cfg, error->data,
1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1832 static const struct {
1835 } path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1841 static const struct {
1844 } path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1859 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1908 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
1927 ipr_format_res_path(fabric->res_path, buffer,
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
1937 static const struct {
1940 } path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1947 static const struct {
1950 } path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1959 static const char *link_rate[] = {
1962 "phy reset problem",
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1986 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2053 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
2075 ipr_format_res_path(cfg->res_path, buffer,
2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2097 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2134 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
2153 array_entry = error->array_member;
2154 num_entries = min_t(u32, error->num_entries,
2155 ARRAY_SIZE(error->array_member));
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2165 ipr_err("Array Member %d:\n", i);
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
2169 ipr_err("Current Location: %s\n",
2170 ipr_format_res_path(array_entry->res_path, buffer,
2172 ipr_err("Expected Location: %s\n",
2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2188 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2226 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2230 be32_to_cpu(hostrcb->hcam.length));
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2242 * index into the ipr_error_table
2244 static u32 ipr_get_error(u32 ioasc)
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2260 * This function logs an adapter error to the system.
2265 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
2286 hostrcb->hcam.u.error.fd_res_addr.bus);
2289 error_index = ipr_get_error(ioasc);
2291 if (!ipr_error_table[error_index].log_hcam)
2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2304 switch (hostrcb->hcam.overlay_id) {
2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 case IPR_HOST_RCB_OVERLAY_ID_1:
2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2347 ipr_log_generic_error(ioa_cfg, hostrcb);
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2363 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2394 * This function blocks host requests and initiates an
2400 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2426 * This function blocks host requests and initiates an
2432 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2467 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2492 * pointer to SES table entry / NULL on failure
2494 static const struct ipr_ses_table_entry *
2495 ipr_find_ses_entry(struct ipr_resource_entry *res)
2498 struct ipr_std_inq_vpids *vpids;
2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
2513 if (matches == IPR_PROD_ID_LEN)
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2524 * @bus_width: bus width
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2532 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2543 if (bus != res->bus)
2546 if (!(ste = ipr_find_ses_entry(res)))
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2552 return max_xfer_rate;
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2563 * 0 on success / other on failure
2565 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567 volatile u32 pcii_reg;
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2598 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 __be32 *dest, u32 length_in_words)
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2621 * 0 on success / -EIO on failure
2623 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 __be32 *dest, u32 length_in_words)
2627 volatile u32 temp_pcii_reg;
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2704 #ifdef CONFIG_SCSI_IPR_DUMP
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2714 * 0 on success / other on failure
2716 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2726 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2728 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2730 while (bytes_copied < length &&
2731 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2732 if (ioa_dump->page_offset >= PAGE_SIZE ||
2733 ioa_dump->page_offset == 0) {
2734 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2738 return bytes_copied;
2741 ioa_dump->page_offset = 0;
2742 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2743 ioa_dump->next_page_index++;
2745 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2747 rem_len = length - bytes_copied;
2748 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2749 cur_len = min(rem_len, rem_page_len);
2751 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2752 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2755 rc = ipr_get_ldump_data_section(ioa_cfg,
2756 pci_address + bytes_copied,
2757 &page[ioa_dump->page_offset / 4],
2758 (cur_len / sizeof(u32)));
2760 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2763 ioa_dump->page_offset += cur_len;
2764 bytes_copied += cur_len;
2772 return bytes_copied;
2776 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2777 * @hdr: dump entry header struct
2782 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2784 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2786 hdr->offset = sizeof(*hdr);
2787 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2791 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2792 * @ioa_cfg: ioa config struct
2793 * @driver_dump: driver dump struct
2798 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2799 struct ipr_driver_dump *driver_dump)
2801 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2803 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2804 driver_dump->ioa_type_entry.hdr.len =
2805 sizeof(struct ipr_dump_ioa_type_entry) -
2806 sizeof(struct ipr_dump_entry_header);
2807 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2808 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2809 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2810 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2811 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2812 ucode_vpd->minor_release[1];
2813 driver_dump->hdr.num_entries++;
2817 * ipr_dump_version_data - Fill in the driver version in the dump.
2818 * @ioa_cfg: ioa config struct
2819 * @driver_dump: driver dump struct
2824 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2825 struct ipr_driver_dump *driver_dump)
2827 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2828 driver_dump->version_entry.hdr.len =
2829 sizeof(struct ipr_dump_version_entry) -
2830 sizeof(struct ipr_dump_entry_header);
2831 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2832 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2833 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2834 driver_dump->hdr.num_entries++;
2838 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2839 * @ioa_cfg: ioa config struct
2840 * @driver_dump: driver dump struct
2845 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2846 struct ipr_driver_dump *driver_dump)
2848 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2849 driver_dump->trace_entry.hdr.len =
2850 sizeof(struct ipr_dump_trace_entry) -
2851 sizeof(struct ipr_dump_entry_header);
2852 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2853 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2854 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2855 driver_dump->hdr.num_entries++;
2859 * ipr_dump_location_data - Fill in the IOA location in the dump.
2860 * @ioa_cfg: ioa config struct
2861 * @driver_dump: driver dump struct
2866 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2867 struct ipr_driver_dump *driver_dump)
2869 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2870 driver_dump->location_entry.hdr.len =
2871 sizeof(struct ipr_dump_location_entry) -
2872 sizeof(struct ipr_dump_entry_header);
2873 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2874 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2875 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2876 driver_dump->hdr.num_entries++;
2880 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2881 * @ioa_cfg: ioa config struct
2882 * @dump: dump struct
2887 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2889 unsigned long start_addr, sdt_word;
2890 unsigned long lock_flags = 0;
2891 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2892 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2893 u32 num_entries, max_num_entries, start_off, end_off;
2894 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
2895 struct ipr_sdt *sdt;
2901 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2903 if (ioa_cfg->sdt_state != READ_DUMP) {
2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2908 if (ioa_cfg->sis64) {
2909 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2910 ssleep(IPR_DUMP_DELAY_SECONDS);
2911 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2914 start_addr = readl(ioa_cfg->ioa_mailbox);
2916 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2917 dev_err(&ioa_cfg->pdev->dev,
2918 "Invalid dump table format: %lx\n", start_addr);
2919 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2923 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2925 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2927 /* Initialize the overall dump header */
2928 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2929 driver_dump->hdr.num_entries = 1;
2930 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2931 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2932 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2933 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2935 ipr_dump_version_data(ioa_cfg, driver_dump);
2936 ipr_dump_location_data(ioa_cfg, driver_dump);
2937 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2938 ipr_dump_trace_data(ioa_cfg, driver_dump);
2940 /* Update dump_header */
2941 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2943 /* IOA Dump entry */
2944 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2945 ioa_dump->hdr.len = 0;
2946 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2947 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2949 /* First entries in sdt are actually a list of dump addresses and
2950 lengths to gather the real dump data. sdt represents the pointer
2951 to the ioa generated dump table. Dump data will be extracted based
2952 on entries in this table */
2953 sdt = &ioa_dump->sdt;
2955 if (ioa_cfg->sis64) {
2956 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
2957 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2959 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
2960 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2963 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
2964 (max_num_entries * sizeof(struct ipr_sdt_entry));
2965 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2966 bytes_to_copy / sizeof(__be32));
2968 /* Smart Dump table is ready to use and the first entry is valid */
2969 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2970 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2971 dev_err(&ioa_cfg->pdev->dev,
2972 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2973 rc, be32_to_cpu(sdt->hdr.state));
2974 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2975 ioa_cfg->sdt_state = DUMP_OBTAINED;
2976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2980 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2982 if (num_entries > max_num_entries)
2983 num_entries = max_num_entries;
2985 /* Update dump length to the actual data to be copied */
2986 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
2988 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
2990 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
2992 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2994 for (i = 0; i < num_entries; i++) {
2995 if (ioa_dump->hdr.len > max_dump_size) {
2996 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3000 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3001 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3003 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3005 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3006 end_off = be32_to_cpu(sdt->entry[i].end_token);
3008 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3009 bytes_to_copy = end_off - start_off;
3014 if (bytes_to_copy > max_dump_size) {
3015 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3019 /* Copy data from adapter to driver buffers */
3020 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3023 ioa_dump->hdr.len += bytes_copied;
3025 if (bytes_copied != bytes_to_copy) {
3026 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3033 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3035 /* Update dump_header */
3036 driver_dump->hdr.len += ioa_dump->hdr.len;
3038 ioa_cfg->sdt_state = DUMP_OBTAINED;
3043 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3047 * ipr_release_dump - Free adapter dump memory
3048 * @kref: kref struct
3053 static void ipr_release_dump(struct kref *kref)
3055 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3056 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3057 unsigned long lock_flags = 0;
3061 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3062 ioa_cfg->dump = NULL;
3063 ioa_cfg->sdt_state = INACTIVE;
3064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3067 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3069 vfree(dump->ioa_dump.ioa_data);
3075 * ipr_worker_thread - Worker thread
3076 * @work: ioa config struct
3078 * Called at task level from a work thread. This function takes care
3079 * of adding and removing device from the mid-layer as configuration
3080 * changes are detected by the adapter.
3085 static void ipr_worker_thread(struct work_struct *work)
3087 unsigned long lock_flags;
3088 struct ipr_resource_entry *res;
3089 struct scsi_device *sdev;
3090 struct ipr_dump *dump;
3091 struct ipr_ioa_cfg *ioa_cfg =
3092 container_of(work, struct ipr_ioa_cfg, work_q);
3093 u8 bus, target, lun;
3097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3099 if (ioa_cfg->sdt_state == READ_DUMP) {
3100 dump = ioa_cfg->dump;
3102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3105 kref_get(&dump->kref);
3106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3107 ipr_get_ioa_dump(ioa_cfg, dump);
3108 kref_put(&dump->kref, ipr_release_dump);
3110 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3111 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3112 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3113 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3120 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3121 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3125 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3126 if (res->del_from_ml && res->sdev) {
3129 if (!scsi_device_get(sdev)) {
3130 if (!res->add_to_ml)
3131 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3133 res->del_from_ml = 0;
3134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3135 scsi_remove_device(sdev);
3136 scsi_device_put(sdev);
3137 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3144 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3145 if (res->add_to_ml) {
3147 target = res->target;
3150 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3151 scsi_add_device(ioa_cfg->host, bus, target, lun);
3152 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3157 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3158 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3162 #ifdef CONFIG_SCSI_IPR_TRACE
3164 * ipr_read_trace - Dump the adapter trace
3165 * @filp: open sysfs file
3166 * @kobj: kobject struct
3167 * @bin_attr: bin_attribute struct
3170 * @count: buffer size
3173 * number of bytes printed to buffer
3175 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3176 struct bin_attribute *bin_attr,
3177 char *buf, loff_t off, size_t count)
3179 struct device *dev = container_of(kobj, struct device, kobj);
3180 struct Scsi_Host *shost = class_to_shost(dev);
3181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3182 unsigned long lock_flags = 0;
3185 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3186 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3188 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3193 static struct bin_attribute ipr_trace_attr = {
3199 .read = ipr_read_trace,
3204 * ipr_show_fw_version - Show the firmware version
3205 * @dev: class device struct
3209 * number of bytes printed to buffer
3211 static ssize_t ipr_show_fw_version(struct device *dev,
3212 struct device_attribute *attr, char *buf)
3214 struct Scsi_Host *shost = class_to_shost(dev);
3215 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3216 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3217 unsigned long lock_flags = 0;
3220 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3221 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3222 ucode_vpd->major_release, ucode_vpd->card_type,
3223 ucode_vpd->minor_release[0],
3224 ucode_vpd->minor_release[1]);
3225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3229 static struct device_attribute ipr_fw_version_attr = {
3231 .name = "fw_version",
3234 .show = ipr_show_fw_version,
3238 * ipr_show_log_level - Show the adapter's error logging level
3239 * @dev: class device struct
3243 * number of bytes printed to buffer
3245 static ssize_t ipr_show_log_level(struct device *dev,
3246 struct device_attribute *attr, char *buf)
3248 struct Scsi_Host *shost = class_to_shost(dev);
3249 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3250 unsigned long lock_flags = 0;
3253 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3254 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3255 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3260 * ipr_store_log_level - Change the adapter's error logging level
3261 * @dev: class device struct
3265 * number of bytes printed to buffer
3267 static ssize_t ipr_store_log_level(struct device *dev,
3268 struct device_attribute *attr,
3269 const char *buf, size_t count)
3271 struct Scsi_Host *shost = class_to_shost(dev);
3272 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3273 unsigned long lock_flags = 0;
3275 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3276 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3277 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3281 static struct device_attribute ipr_log_level_attr = {
3283 .name = "log_level",
3284 .mode = S_IRUGO | S_IWUSR,
3286 .show = ipr_show_log_level,
3287 .store = ipr_store_log_level
3291 * ipr_store_diagnostics - IOA Diagnostics interface
3292 * @dev: device struct
3294 * @count: buffer size
3296 * This function will reset the adapter and wait a reasonable
3297 * amount of time for any errors that the adapter might log.
3300 * count on success / other on failure
3302 static ssize_t ipr_store_diagnostics(struct device *dev,
3303 struct device_attribute *attr,
3304 const char *buf, size_t count)
3306 struct Scsi_Host *shost = class_to_shost(dev);
3307 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3308 unsigned long lock_flags = 0;
3311 if (!capable(CAP_SYS_ADMIN))
3314 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3315 while(ioa_cfg->in_reset_reload) {
3316 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3317 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3318 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3321 ioa_cfg->errors_logged = 0;
3322 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3324 if (ioa_cfg->in_reset_reload) {
3325 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3326 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3328 /* Wait for a second for any errors to be logged */
3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3336 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3338 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3343 static struct device_attribute ipr_diagnostics_attr = {
3345 .name = "run_diagnostics",
3348 .store = ipr_store_diagnostics
3352 * ipr_show_adapter_state - Show the adapter's state
3353 * @class_dev: device struct
3357 * number of bytes printed to buffer
3359 static ssize_t ipr_show_adapter_state(struct device *dev,
3360 struct device_attribute *attr, char *buf)
3362 struct Scsi_Host *shost = class_to_shost(dev);
3363 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3364 unsigned long lock_flags = 0;
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 if (ioa_cfg->ioa_is_dead)
3369 len = snprintf(buf, PAGE_SIZE, "offline\n");
3371 len = snprintf(buf, PAGE_SIZE, "online\n");
3372 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3377 * ipr_store_adapter_state - Change adapter state
3378 * @dev: device struct
3380 * @count: buffer size
3382 * This function will change the adapter's state.
3385 * count on success / other on failure
3387 static ssize_t ipr_store_adapter_state(struct device *dev,
3388 struct device_attribute *attr,
3389 const char *buf, size_t count)
3391 struct Scsi_Host *shost = class_to_shost(dev);
3392 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3393 unsigned long lock_flags;
3396 if (!capable(CAP_SYS_ADMIN))
3399 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3400 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3401 ioa_cfg->ioa_is_dead = 0;
3402 ioa_cfg->reset_retries = 0;
3403 ioa_cfg->in_ioa_bringdown = 0;
3404 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3406 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3407 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3412 static struct device_attribute ipr_ioa_state_attr = {
3414 .name = "online_state",
3415 .mode = S_IRUGO | S_IWUSR,
3417 .show = ipr_show_adapter_state,
3418 .store = ipr_store_adapter_state
3422 * ipr_store_reset_adapter - Reset the adapter
3423 * @dev: device struct
3425 * @count: buffer size
3427 * This function will reset the adapter.
3430 * count on success / other on failure
3432 static ssize_t ipr_store_reset_adapter(struct device *dev,
3433 struct device_attribute *attr,
3434 const char *buf, size_t count)
3436 struct Scsi_Host *shost = class_to_shost(dev);
3437 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3438 unsigned long lock_flags;
3441 if (!capable(CAP_SYS_ADMIN))
3444 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3445 if (!ioa_cfg->in_reset_reload)
3446 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3447 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3448 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3453 static struct device_attribute ipr_ioa_reset_attr = {
3455 .name = "reset_host",
3458 .store = ipr_store_reset_adapter
3462 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3463 * @buf_len: buffer length
3465 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3466 * list to use for microcode download
3469 * pointer to sglist / NULL on failure
3471 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3473 int sg_size, order, bsize_elem, num_elem, i, j;
3474 struct ipr_sglist *sglist;
3475 struct scatterlist *scatterlist;
3478 /* Get the minimum size per scatter/gather element */
3479 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3481 /* Get the actual size per element */
3482 order = get_order(sg_size);
3484 /* Determine the actual number of bytes per element */
3485 bsize_elem = PAGE_SIZE * (1 << order);
3487 /* Determine the actual number of sg entries needed */
3488 if (buf_len % bsize_elem)
3489 num_elem = (buf_len / bsize_elem) + 1;
3491 num_elem = buf_len / bsize_elem;
3493 /* Allocate a scatter/gather list for the DMA */
3494 sglist = kzalloc(sizeof(struct ipr_sglist) +
3495 (sizeof(struct scatterlist) * (num_elem - 1)),
3498 if (sglist == NULL) {
3503 scatterlist = sglist->scatterlist;
3504 sg_init_table(scatterlist, num_elem);
3506 sglist->order = order;
3507 sglist->num_sg = num_elem;
3509 /* Allocate a bunch of sg elements */
3510 for (i = 0; i < num_elem; i++) {
3511 page = alloc_pages(GFP_KERNEL, order);
3515 /* Free up what we already allocated */
3516 for (j = i - 1; j >= 0; j--)
3517 __free_pages(sg_page(&scatterlist[j]), order);
3522 sg_set_page(&scatterlist[i], page, 0, 0);
3529 * ipr_free_ucode_buffer - Frees a microcode download buffer
3530 * @p_dnld: scatter/gather list pointer
3532 * Free a DMA'able ucode download buffer previously allocated with
3533 * ipr_alloc_ucode_buffer
3538 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3542 for (i = 0; i < sglist->num_sg; i++)
3543 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3549 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3550 * @sglist: scatter/gather list pointer
3551 * @buffer: buffer pointer
3552 * @len: buffer length
3554 * Copy a microcode image from a user buffer into a buffer allocated by
3555 * ipr_alloc_ucode_buffer
3558 * 0 on success / other on failure
3560 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3561 u8 *buffer, u32 len)
3563 int bsize_elem, i, result = 0;
3564 struct scatterlist *scatterlist;
3567 /* Determine the actual number of bytes per element */
3568 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3570 scatterlist = sglist->scatterlist;
3572 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3573 struct page *page = sg_page(&scatterlist[i]);
3576 memcpy(kaddr, buffer, bsize_elem);
3579 scatterlist[i].length = bsize_elem;
3587 if (len % bsize_elem) {
3588 struct page *page = sg_page(&scatterlist[i]);
3591 memcpy(kaddr, buffer, len % bsize_elem);
3594 scatterlist[i].length = len % bsize_elem;
3597 sglist->buffer_len = len;
3602 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3603 * @ipr_cmd: ipr command struct
3604 * @sglist: scatter/gather list
3606 * Builds a microcode download IOA data list (IOADL).
3609 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3610 struct ipr_sglist *sglist)
3612 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3613 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3614 struct scatterlist *scatterlist = sglist->scatterlist;
3617 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3618 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3619 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3622 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3623 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3624 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3625 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3626 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3629 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3633 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3634 * @ipr_cmd: ipr command struct
3635 * @sglist: scatter/gather list
3637 * Builds a microcode download IOA data list (IOADL).
3640 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3641 struct ipr_sglist *sglist)
3643 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3644 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3645 struct scatterlist *scatterlist = sglist->scatterlist;
3648 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3649 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3650 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3653 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3655 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3656 ioadl[i].flags_and_data_len =
3657 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3659 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3662 ioadl[i-1].flags_and_data_len |=
3663 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3667 * ipr_update_ioa_ucode - Update IOA's microcode
3668 * @ioa_cfg: ioa config struct
3669 * @sglist: scatter/gather list
3671 * Initiate an adapter reset to update the IOA's microcode
3674 * 0 on success / -EIO on failure
3676 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3677 struct ipr_sglist *sglist)
3679 unsigned long lock_flags;
3681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3682 while(ioa_cfg->in_reset_reload) {
3683 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3684 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3685 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3688 if (ioa_cfg->ucode_sglist) {
3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3690 dev_err(&ioa_cfg->pdev->dev,
3691 "Microcode download already in progress\n");
3695 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3696 sglist->num_sg, DMA_TO_DEVICE);
3698 if (!sglist->num_dma_sg) {
3699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3700 dev_err(&ioa_cfg->pdev->dev,
3701 "Failed to map microcode download buffer!\n");
3705 ioa_cfg->ucode_sglist = sglist;
3706 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3707 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3708 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3710 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3711 ioa_cfg->ucode_sglist = NULL;
3712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3717 * ipr_store_update_fw - Update the firmware on the adapter
3718 * @class_dev: device struct
3720 * @count: buffer size
3722 * This function will update the firmware on the adapter.
3725 * count on success / other on failure
3727 static ssize_t ipr_store_update_fw(struct device *dev,
3728 struct device_attribute *attr,
3729 const char *buf, size_t count)
3731 struct Scsi_Host *shost = class_to_shost(dev);
3732 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3733 struct ipr_ucode_image_header *image_hdr;
3734 const struct firmware *fw_entry;
3735 struct ipr_sglist *sglist;
3738 int len, result, dnld_size;
3740 if (!capable(CAP_SYS_ADMIN))
3743 len = snprintf(fname, 99, "%s", buf);
3744 fname[len-1] = '\0';
3746 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3747 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3751 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3753 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3754 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3755 sglist = ipr_alloc_ucode_buffer(dnld_size);
3758 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3759 release_firmware(fw_entry);
3763 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3766 dev_err(&ioa_cfg->pdev->dev,
3767 "Microcode buffer copy to DMA buffer failed\n");
3771 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3773 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3778 ipr_free_ucode_buffer(sglist);
3779 release_firmware(fw_entry);
3783 static struct device_attribute ipr_update_fw_attr = {
3785 .name = "update_fw",
3788 .store = ipr_store_update_fw
3792 * ipr_show_fw_type - Show the adapter's firmware type.
3793 * @dev: class device struct
3797 * number of bytes printed to buffer
3799 static ssize_t ipr_show_fw_type(struct device *dev,
3800 struct device_attribute *attr, char *buf)
3802 struct Scsi_Host *shost = class_to_shost(dev);
3803 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3804 unsigned long lock_flags = 0;
3807 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3808 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3809 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3813 static struct device_attribute ipr_ioa_fw_type_attr = {
3818 .show = ipr_show_fw_type
3821 static struct device_attribute *ipr_ioa_attrs[] = {
3822 &ipr_fw_version_attr,
3823 &ipr_log_level_attr,
3824 &ipr_diagnostics_attr,
3825 &ipr_ioa_state_attr,
3826 &ipr_ioa_reset_attr,
3827 &ipr_update_fw_attr,
3828 &ipr_ioa_fw_type_attr,
3832 #ifdef CONFIG_SCSI_IPR_DUMP
3834 * ipr_read_dump - Dump the adapter
3835 * @filp: open sysfs file
3836 * @kobj: kobject struct
3837 * @bin_attr: bin_attribute struct
3840 * @count: buffer size
3843 * number of bytes printed to buffer
3845 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3846 struct bin_attribute *bin_attr,
3847 char *buf, loff_t off, size_t count)
3849 struct device *cdev = container_of(kobj, struct device, kobj);
3850 struct Scsi_Host *shost = class_to_shost(cdev);
3851 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3852 struct ipr_dump *dump;
3853 unsigned long lock_flags = 0;
3858 if (!capable(CAP_SYS_ADMIN))
3861 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3862 dump = ioa_cfg->dump;
3864 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3865 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3868 kref_get(&dump->kref);
3869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3871 if (off > dump->driver_dump.hdr.len) {
3872 kref_put(&dump->kref, ipr_release_dump);
3876 if (off + count > dump->driver_dump.hdr.len) {
3877 count = dump->driver_dump.hdr.len - off;
3881 if (count && off < sizeof(dump->driver_dump)) {
3882 if (off + count > sizeof(dump->driver_dump))
3883 len = sizeof(dump->driver_dump) - off;
3886 src = (u8 *)&dump->driver_dump + off;
3887 memcpy(buf, src, len);
3893 off -= sizeof(dump->driver_dump);
3896 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3897 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3898 sizeof(struct ipr_sdt_entry));
3900 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3901 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3903 if (count && off < sdt_end) {
3904 if (off + count > sdt_end)
3905 len = sdt_end - off;
3908 src = (u8 *)&dump->ioa_dump + off;
3909 memcpy(buf, src, len);
3918 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3919 len = PAGE_ALIGN(off) - off;
3922 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3923 src += off & ~PAGE_MASK;
3924 memcpy(buf, src, len);
3930 kref_put(&dump->kref, ipr_release_dump);
3935 * ipr_alloc_dump - Prepare for adapter dump
3936 * @ioa_cfg: ioa config struct
3939 * 0 on success / other on failure
3941 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3943 struct ipr_dump *dump;
3945 unsigned long lock_flags = 0;
3947 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3950 ipr_err("Dump memory allocation failed\n");
3955 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3957 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3960 ipr_err("Dump memory allocation failed\n");
3965 dump->ioa_dump.ioa_data = ioa_data;
3967 kref_init(&dump->kref);
3968 dump->ioa_cfg = ioa_cfg;
3970 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3972 if (INACTIVE != ioa_cfg->sdt_state) {
3973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3974 vfree(dump->ioa_dump.ioa_data);
3979 ioa_cfg->dump = dump;
3980 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3981 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3982 ioa_cfg->dump_taken = 1;
3983 schedule_work(&ioa_cfg->work_q);
3985 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3991 * ipr_free_dump - Free adapter dump memory
3992 * @ioa_cfg: ioa config struct
3995 * 0 on success / other on failure
3997 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3999 struct ipr_dump *dump;
4000 unsigned long lock_flags = 0;
4004 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4005 dump = ioa_cfg->dump;
4007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4011 ioa_cfg->dump = NULL;
4012 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4014 kref_put(&dump->kref, ipr_release_dump);
4021 * ipr_write_dump - Setup dump state of adapter
4022 * @filp: open sysfs file
4023 * @kobj: kobject struct
4024 * @bin_attr: bin_attribute struct
4027 * @count: buffer size
4030 * number of bytes printed to buffer
4032 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4033 struct bin_attribute *bin_attr,
4034 char *buf, loff_t off, size_t count)
4036 struct device *cdev = container_of(kobj, struct device, kobj);
4037 struct Scsi_Host *shost = class_to_shost(cdev);
4038 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4041 if (!capable(CAP_SYS_ADMIN))
4045 rc = ipr_alloc_dump(ioa_cfg);
4046 else if (buf[0] == '0')
4047 rc = ipr_free_dump(ioa_cfg);
4057 static struct bin_attribute ipr_dump_attr = {
4060 .mode = S_IRUSR | S_IWUSR,
4063 .read = ipr_read_dump,
4064 .write = ipr_write_dump
4067 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4071 * ipr_change_queue_depth - Change the device's queue depth
4072 * @sdev: scsi device struct
4073 * @qdepth: depth to set
4074 * @reason: calling context
4079 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4082 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4083 struct ipr_resource_entry *res;
4084 unsigned long lock_flags = 0;
4086 if (reason != SCSI_QDEPTH_DEFAULT)
4089 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4090 res = (struct ipr_resource_entry *)sdev->hostdata;
4092 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4093 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4096 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4097 return sdev->queue_depth;
4101 * ipr_change_queue_type - Change the device's queue type
4102 * @dsev: scsi device struct
4103 * @tag_type: type of tags to use
4106 * actual queue type set
4108 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4110 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4111 struct ipr_resource_entry *res;
4112 unsigned long lock_flags = 0;
4114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4115 res = (struct ipr_resource_entry *)sdev->hostdata;
4118 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4120 * We don't bother quiescing the device here since the
4121 * adapter firmware does it for us.
4123 scsi_set_tag_type(sdev, tag_type);
4126 scsi_activate_tcq(sdev, sdev->queue_depth);
4128 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4139 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4140 * @dev: device struct
4141 * @attr: device attribute structure
4145 * number of bytes printed to buffer
4147 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4149 struct scsi_device *sdev = to_scsi_device(dev);
4150 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4151 struct ipr_resource_entry *res;
4152 unsigned long lock_flags = 0;
4153 ssize_t len = -ENXIO;
4155 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4156 res = (struct ipr_resource_entry *)sdev->hostdata;
4158 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4163 static struct device_attribute ipr_adapter_handle_attr = {
4165 .name = "adapter_handle",
4168 .show = ipr_show_adapter_handle
4172 * ipr_show_resource_path - Show the resource path or the resource address for
4174 * @dev: device struct
4175 * @attr: device attribute structure
4179 * number of bytes printed to buffer
4181 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4183 struct scsi_device *sdev = to_scsi_device(dev);
4184 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4185 struct ipr_resource_entry *res;
4186 unsigned long lock_flags = 0;
4187 ssize_t len = -ENXIO;
4188 char buffer[IPR_MAX_RES_PATH_LENGTH];
4190 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4191 res = (struct ipr_resource_entry *)sdev->hostdata;
4192 if (res && ioa_cfg->sis64)
4193 len = snprintf(buf, PAGE_SIZE, "%s\n",
4194 ipr_format_res_path(res->res_path, buffer,
4197 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4198 res->bus, res->target, res->lun);
4200 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4204 static struct device_attribute ipr_resource_path_attr = {
4206 .name = "resource_path",
4209 .show = ipr_show_resource_path
4213 * ipr_show_device_id - Show the device_id for this device.
4214 * @dev: device struct
4215 * @attr: device attribute structure
4219 * number of bytes printed to buffer
4221 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4223 struct scsi_device *sdev = to_scsi_device(dev);
4224 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4225 struct ipr_resource_entry *res;
4226 unsigned long lock_flags = 0;
4227 ssize_t len = -ENXIO;
4229 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4230 res = (struct ipr_resource_entry *)sdev->hostdata;
4231 if (res && ioa_cfg->sis64)
4232 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4234 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4236 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4240 static struct device_attribute ipr_device_id_attr = {
4242 .name = "device_id",
4245 .show = ipr_show_device_id
4249 * ipr_show_resource_type - Show the resource type for this device.
4250 * @dev: device struct
4251 * @attr: device attribute structure
4255 * number of bytes printed to buffer
4257 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4259 struct scsi_device *sdev = to_scsi_device(dev);
4260 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4261 struct ipr_resource_entry *res;
4262 unsigned long lock_flags = 0;
4263 ssize_t len = -ENXIO;
4265 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4266 res = (struct ipr_resource_entry *)sdev->hostdata;
4269 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4275 static struct device_attribute ipr_resource_type_attr = {
4277 .name = "resource_type",
4280 .show = ipr_show_resource_type
4283 static struct device_attribute *ipr_dev_attrs[] = {
4284 &ipr_adapter_handle_attr,
4285 &ipr_resource_path_attr,
4286 &ipr_device_id_attr,
4287 &ipr_resource_type_attr,
4292 * ipr_biosparam - Return the HSC mapping
4293 * @sdev: scsi device struct
4294 * @block_device: block device pointer
4295 * @capacity: capacity of the device
4296 * @parm: Array containing returned HSC values.
4298 * This function generates the HSC parms that fdisk uses.
4299 * We want to make sure we return something that places partitions
4300 * on 4k boundaries for best performance with the IOA.
4305 static int ipr_biosparam(struct scsi_device *sdev,
4306 struct block_device *block_device,
4307 sector_t capacity, int *parm)
4315 cylinders = capacity;
4316 sector_div(cylinders, (128 * 32));
4321 parm[2] = cylinders;
4327 * ipr_find_starget - Find target based on bus/target.
4328 * @starget: scsi target struct
4331 * resource entry pointer if found / NULL if not found
4333 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4335 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4336 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4337 struct ipr_resource_entry *res;
4339 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4340 if ((res->bus == starget->channel) &&
4341 (res->target == starget->id)) {
4349 static struct ata_port_info sata_port_info;
4352 * ipr_target_alloc - Prepare for commands to a SCSI target
4353 * @starget: scsi target struct
4355 * If the device is a SATA device, this function allocates an
4356 * ATA port with libata, else it does nothing.
4359 * 0 on success / non-0 on failure
4361 static int ipr_target_alloc(struct scsi_target *starget)
4363 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4365 struct ipr_sata_port *sata_port;
4366 struct ata_port *ap;
4367 struct ipr_resource_entry *res;
4368 unsigned long lock_flags;
4370 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4371 res = ipr_find_starget(starget);
4372 starget->hostdata = NULL;
4374 if (res && ipr_is_gata(res)) {
4375 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4376 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4380 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4382 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4383 sata_port->ioa_cfg = ioa_cfg;
4385 sata_port->res = res;
4387 res->sata_port = sata_port;
4388 ap->private_data = sata_port;
4389 starget->hostdata = sata_port;
4395 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4401 * ipr_target_destroy - Destroy a SCSI target
4402 * @starget: scsi target struct
4404 * If the device was a SATA device, this function frees the libata
4405 * ATA port, else it does nothing.
4408 static void ipr_target_destroy(struct scsi_target *starget)
4410 struct ipr_sata_port *sata_port = starget->hostdata;
4411 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4412 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4414 if (ioa_cfg->sis64) {
4415 if (!ipr_find_starget(starget)) {
4416 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4417 clear_bit(starget->id, ioa_cfg->array_ids);
4418 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4419 clear_bit(starget->id, ioa_cfg->vset_ids);
4420 else if (starget->channel == 0)
4421 clear_bit(starget->id, ioa_cfg->target_ids);
4426 starget->hostdata = NULL;
4427 ata_sas_port_destroy(sata_port->ap);
4433 * ipr_find_sdev - Find device based on bus/target/lun.
4434 * @sdev: scsi device struct
4437 * resource entry pointer if found / NULL if not found
4439 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4441 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4442 struct ipr_resource_entry *res;
4444 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4445 if ((res->bus == sdev->channel) &&
4446 (res->target == sdev->id) &&
4447 (res->lun == sdev->lun))
4455 * ipr_slave_destroy - Unconfigure a SCSI device
4456 * @sdev: scsi device struct
4461 static void ipr_slave_destroy(struct scsi_device *sdev)
4463 struct ipr_resource_entry *res;
4464 struct ipr_ioa_cfg *ioa_cfg;
4465 unsigned long lock_flags = 0;
4467 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4469 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4470 res = (struct ipr_resource_entry *) sdev->hostdata;
4473 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4474 sdev->hostdata = NULL;
4476 res->sata_port = NULL;
4478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4482 * ipr_slave_configure - Configure a SCSI device
4483 * @sdev: scsi device struct
4485 * This function configures the specified scsi device.
4490 static int ipr_slave_configure(struct scsi_device *sdev)
4492 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4493 struct ipr_resource_entry *res;
4494 struct ata_port *ap = NULL;
4495 unsigned long lock_flags = 0;
4496 char buffer[IPR_MAX_RES_PATH_LENGTH];
4498 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4499 res = sdev->hostdata;
4501 if (ipr_is_af_dasd_device(res))
4502 sdev->type = TYPE_RAID;
4503 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4504 sdev->scsi_level = 4;
4505 sdev->no_uld_attach = 1;
4507 if (ipr_is_vset_device(res)) {
4508 blk_queue_rq_timeout(sdev->request_queue,
4509 IPR_VSET_RW_TIMEOUT);
4510 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4512 if (ipr_is_gata(res) && res->sata_port)
4513 ap = res->sata_port->ap;
4514 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4517 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4518 ata_sas_slave_configure(sdev, ap);
4520 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4522 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4523 ipr_format_res_path(res->res_path, buffer,
4527 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4532 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4533 * @sdev: scsi device struct
4535 * This function initializes an ATA port so that future commands
4536 * sent through queuecommand will work.
4541 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4543 struct ipr_sata_port *sata_port = NULL;
4547 if (sdev->sdev_target)
4548 sata_port = sdev->sdev_target->hostdata;
4550 rc = ata_sas_port_init(sata_port->ap);
4552 ipr_slave_destroy(sdev);
4559 * ipr_slave_alloc - Prepare for commands to a device.
4560 * @sdev: scsi device struct
4562 * This function saves a pointer to the resource entry
4563 * in the scsi device struct if the device exists. We
4564 * can then use this pointer in ipr_queuecommand when
4565 * handling new commands.
4568 * 0 on success / -ENXIO if device does not exist
4570 static int ipr_slave_alloc(struct scsi_device *sdev)
4572 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4573 struct ipr_resource_entry *res;
4574 unsigned long lock_flags;
4577 sdev->hostdata = NULL;
4579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4581 res = ipr_find_sdev(sdev);
4586 sdev->hostdata = res;
4587 if (!ipr_is_naca_model(res))
4588 res->needs_sync_complete = 1;
4590 if (ipr_is_gata(res)) {
4591 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4592 return ipr_ata_slave_alloc(sdev);
4596 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4602 * ipr_eh_host_reset - Reset the host adapter
4603 * @scsi_cmd: scsi command struct
4608 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4610 struct ipr_ioa_cfg *ioa_cfg;
4614 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4616 if (!ioa_cfg->in_reset_reload) {
4617 dev_err(&ioa_cfg->pdev->dev,
4618 "Adapter being reset as a result of error recovery.\n");
4620 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4621 ioa_cfg->sdt_state = GET_DUMP;
4624 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4630 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4634 spin_lock_irq(cmd->device->host->host_lock);
4635 rc = __ipr_eh_host_reset(cmd);
4636 spin_unlock_irq(cmd->device->host->host_lock);
4642 * ipr_device_reset - Reset the device
4643 * @ioa_cfg: ioa config struct
4644 * @res: resource entry struct
4646 * This function issues a device reset to the affected device.
4647 * If the device is a SCSI device, a LUN reset will be sent
4648 * to the device first. If that does not work, a target reset
4649 * will be sent. If the device is a SATA device, a PHY reset will
4653 * 0 on success / non-zero on failure
4655 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4656 struct ipr_resource_entry *res)
4658 struct ipr_cmnd *ipr_cmd;
4659 struct ipr_ioarcb *ioarcb;
4660 struct ipr_cmd_pkt *cmd_pkt;
4661 struct ipr_ioarcb_ata_regs *regs;
4665 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4666 ioarcb = &ipr_cmd->ioarcb;
4667 cmd_pkt = &ioarcb->cmd_pkt;
4669 if (ipr_cmd->ioa_cfg->sis64) {
4670 regs = &ipr_cmd->i.ata_ioadl.regs;
4671 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4673 regs = &ioarcb->u.add_data.u.regs;
4675 ioarcb->res_handle = res->res_handle;
4676 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4677 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4678 if (ipr_is_gata(res)) {
4679 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4680 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4681 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4684 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4685 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4686 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4687 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4688 if (ipr_cmd->ioa_cfg->sis64)
4689 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4690 sizeof(struct ipr_ioasa_gata));
4692 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4693 sizeof(struct ipr_ioasa_gata));
4697 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4701 * ipr_sata_reset - Reset the SATA port
4702 * @link: SATA link to reset
4703 * @classes: class of the attached device
4705 * This function issues a SATA phy reset to the affected ATA link.
4708 * 0 on success / non-zero on failure
4710 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4711 unsigned long deadline)
4713 struct ipr_sata_port *sata_port = link->ap->private_data;
4714 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4715 struct ipr_resource_entry *res;
4716 unsigned long lock_flags = 0;
4720 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4721 while(ioa_cfg->in_reset_reload) {
4722 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4723 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4727 res = sata_port->res;
4729 rc = ipr_device_reset(ioa_cfg, res);
4730 *classes = res->ata_class;
4733 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4739 * ipr_eh_dev_reset - Reset the device
4740 * @scsi_cmd: scsi command struct
4742 * This function issues a device reset to the affected device.
4743 * A LUN reset will be sent to the device first. If that does
4744 * not work, a target reset will be sent.
4749 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4751 struct ipr_cmnd *ipr_cmd;
4752 struct ipr_ioa_cfg *ioa_cfg;
4753 struct ipr_resource_entry *res;
4754 struct ata_port *ap;
4758 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4759 res = scsi_cmd->device->hostdata;
4765 * If we are currently going through reset/reload, return failed. This will force the
4766 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4769 if (ioa_cfg->in_reset_reload)
4771 if (ioa_cfg->ioa_is_dead)
4774 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4775 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4776 if (ipr_cmd->scsi_cmd)
4777 ipr_cmd->done = ipr_scsi_eh_done;
4779 ipr_cmd->done = ipr_sata_eh_done;
4780 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4781 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4782 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4787 res->resetting_device = 1;
4788 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4790 if (ipr_is_gata(res) && res->sata_port) {
4791 ap = res->sata_port->ap;
4792 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4793 ata_std_error_handler(ap);
4794 spin_lock_irq(scsi_cmd->device->host->host_lock);
4796 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4797 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4803 rc = ipr_device_reset(ioa_cfg, res);
4804 res->resetting_device = 0;
4807 return (rc ? FAILED : SUCCESS);
4810 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4814 spin_lock_irq(cmd->device->host->host_lock);
4815 rc = __ipr_eh_dev_reset(cmd);
4816 spin_unlock_irq(cmd->device->host->host_lock);
4822 * ipr_bus_reset_done - Op done function for bus reset.
4823 * @ipr_cmd: ipr command struct
4825 * This function is the op done function for a bus reset
4830 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4833 struct ipr_resource_entry *res;
4836 if (!ioa_cfg->sis64)
4837 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4838 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4839 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4845 * If abort has not completed, indicate the reset has, else call the
4846 * abort's done function to wake the sleeping eh thread
4848 if (ipr_cmd->sibling->sibling)
4849 ipr_cmd->sibling->sibling = NULL;
4851 ipr_cmd->sibling->done(ipr_cmd->sibling);
4853 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4858 * ipr_abort_timeout - An abort task has timed out
4859 * @ipr_cmd: ipr command struct
4861 * This function handles when an abort task times out. If this
4862 * happens we issue a bus reset since we have resources tied
4863 * up that must be freed before returning to the midlayer.
4868 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4870 struct ipr_cmnd *reset_cmd;
4871 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4872 struct ipr_cmd_pkt *cmd_pkt;
4873 unsigned long lock_flags = 0;
4876 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4877 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4878 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4882 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4883 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4884 ipr_cmd->sibling = reset_cmd;
4885 reset_cmd->sibling = ipr_cmd;
4886 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4887 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4888 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4889 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4890 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4892 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4893 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4898 * ipr_cancel_op - Cancel specified op
4899 * @scsi_cmd: scsi command struct
4901 * This function cancels specified op.
4906 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4908 struct ipr_cmnd *ipr_cmd;
4909 struct ipr_ioa_cfg *ioa_cfg;
4910 struct ipr_resource_entry *res;
4911 struct ipr_cmd_pkt *cmd_pkt;
4916 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4917 res = scsi_cmd->device->hostdata;
4919 /* If we are currently going through reset/reload, return failed.
4920 * This will force the mid-layer to call ipr_eh_host_reset,
4921 * which will then go to sleep and wait for the reset to complete
4923 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4929 * If we are aborting a timed out op, chances are that the timeout was caused
4930 * by a still not detected EEH error. In such cases, reading a register will
4931 * trigger the EEH recovery infrastructure.
4933 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4935 if (!ipr_is_gscsi(res))
4938 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4939 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4940 ipr_cmd->done = ipr_scsi_eh_done;
4949 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4950 ipr_cmd->ioarcb.res_handle = res->res_handle;
4951 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4952 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4953 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4954 ipr_cmd->u.sdev = scsi_cmd->device;
4956 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4958 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4959 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4962 * If the abort task timed out and we sent a bus reset, we will get
4963 * one the following responses to the abort
4965 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4970 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4971 if (!ipr_is_naca_model(res))
4972 res->needs_sync_complete = 1;
4975 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4979 * ipr_eh_abort - Abort a single op
4980 * @scsi_cmd: scsi command struct
4985 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4987 unsigned long flags;
4992 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4993 rc = ipr_cancel_op(scsi_cmd);
4994 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5001 * ipr_handle_other_interrupt - Handle "other" interrupts
5002 * @ioa_cfg: ioa config struct
5003 * @int_reg: interrupt register
5006 * IRQ_NONE / IRQ_HANDLED
5008 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5011 irqreturn_t rc = IRQ_HANDLED;
5014 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5015 int_reg &= ~int_mask_reg;
5017 /* If an interrupt on the adapter did not occur, ignore it.
5018 * Or in the case of SIS 64, check for a stage change interrupt.
5020 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5021 if (ioa_cfg->sis64) {
5022 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5023 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5024 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5026 /* clear stage change */
5027 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5028 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5029 list_del(&ioa_cfg->reset_cmd->queue);
5030 del_timer(&ioa_cfg->reset_cmd->timer);
5031 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5039 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5040 /* Mask the interrupt */
5041 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5043 /* Clear the interrupt */
5044 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5045 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5047 list_del(&ioa_cfg->reset_cmd->queue);
5048 del_timer(&ioa_cfg->reset_cmd->timer);
5049 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5050 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5051 if (ioa_cfg->clear_isr) {
5052 if (ipr_debug && printk_ratelimit())
5053 dev_err(&ioa_cfg->pdev->dev,
5054 "Spurious interrupt detected. 0x%08X\n", int_reg);
5055 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5056 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5060 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5061 ioa_cfg->ioa_unit_checked = 1;
5063 dev_err(&ioa_cfg->pdev->dev,
5064 "Permanent IOA failure. 0x%08X\n", int_reg);
5066 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5067 ioa_cfg->sdt_state = GET_DUMP;
5069 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5070 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5077 * ipr_isr_eh - Interrupt service routine error handler
5078 * @ioa_cfg: ioa config struct
5079 * @msg: message to log
5084 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5086 ioa_cfg->errors_logged++;
5087 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5089 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5090 ioa_cfg->sdt_state = GET_DUMP;
5092 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5096 * ipr_isr - Interrupt service routine
5098 * @devp: pointer to ioa config struct
5101 * IRQ_NONE / IRQ_HANDLED
5103 static irqreturn_t ipr_isr(int irq, void *devp)
5105 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5106 unsigned long lock_flags = 0;
5112 struct ipr_cmnd *ipr_cmd;
5113 irqreturn_t rc = IRQ_NONE;
5115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5117 /* If interrupts are disabled, ignore the interrupt */
5118 if (!ioa_cfg->allow_interrupts) {
5119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5126 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5127 ioa_cfg->toggle_bit) {
5129 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5130 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5132 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5133 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5138 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5140 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5142 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5144 list_del(&ipr_cmd->queue);
5145 del_timer(&ipr_cmd->timer);
5146 ipr_cmd->done(ipr_cmd);
5150 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5151 ioa_cfg->hrrq_curr++;
5153 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5154 ioa_cfg->toggle_bit ^= 1u;
5158 if (ipr_cmd && !ioa_cfg->clear_isr)
5161 if (ipr_cmd != NULL) {
5162 /* Clear the PCI interrupt */
5165 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5166 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5167 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5168 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5170 } else if (rc == IRQ_NONE && irq_none == 0) {
5171 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5173 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5174 int_reg & IPR_PCII_HRRQ_UPDATED) {
5175 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5176 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5182 if (unlikely(rc == IRQ_NONE))
5183 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5190 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5191 * @ioa_cfg: ioa config struct
5192 * @ipr_cmd: ipr command struct
5195 * 0 on success / -1 on failure
5197 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5198 struct ipr_cmnd *ipr_cmd)
5201 struct scatterlist *sg;
5203 u32 ioadl_flags = 0;
5204 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5205 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5206 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5208 length = scsi_bufflen(scsi_cmd);
5212 nseg = scsi_dma_map(scsi_cmd);
5214 if (printk_ratelimit())
5215 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5219 ipr_cmd->dma_use_sg = nseg;
5221 ioarcb->data_transfer_length = cpu_to_be32(length);
5223 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5225 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5226 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5227 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5228 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5229 ioadl_flags = IPR_IOADL_FLAGS_READ;
5231 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5232 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5233 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5234 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5237 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5242 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5243 * @ioa_cfg: ioa config struct
5244 * @ipr_cmd: ipr command struct
5247 * 0 on success / -1 on failure
5249 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5250 struct ipr_cmnd *ipr_cmd)
5253 struct scatterlist *sg;
5255 u32 ioadl_flags = 0;
5256 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5257 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5258 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5260 length = scsi_bufflen(scsi_cmd);
5264 nseg = scsi_dma_map(scsi_cmd);
5266 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5270 ipr_cmd->dma_use_sg = nseg;
5272 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5273 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5274 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5275 ioarcb->data_transfer_length = cpu_to_be32(length);
5277 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5278 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5279 ioadl_flags = IPR_IOADL_FLAGS_READ;
5280 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5281 ioarcb->read_ioadl_len =
5282 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5285 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5286 ioadl = ioarcb->u.add_data.u.ioadl;
5287 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5288 offsetof(struct ipr_ioarcb, u.add_data));
5289 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5292 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5293 ioadl[i].flags_and_data_len =
5294 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5295 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5298 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5303 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5304 * @scsi_cmd: scsi command struct
5309 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5312 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5314 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5316 case MSG_SIMPLE_TAG:
5317 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5320 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5322 case MSG_ORDERED_TAG:
5323 rc = IPR_FLAGS_LO_ORDERED_TASK;
5332 * ipr_erp_done - Process completion of ERP for a device
5333 * @ipr_cmd: ipr command struct
5335 * This function copies the sense buffer into the scsi_cmd
5336 * struct and pushes the scsi_done function.
5341 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5343 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5344 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5345 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5346 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5348 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5349 scsi_cmd->result |= (DID_ERROR << 16);
5350 scmd_printk(KERN_ERR, scsi_cmd,
5351 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5353 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5354 SCSI_SENSE_BUFFERSIZE);
5358 if (!ipr_is_naca_model(res))
5359 res->needs_sync_complete = 1;
5362 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5363 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5364 scsi_cmd->scsi_done(scsi_cmd);
5368 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5369 * @ipr_cmd: ipr command struct
5374 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5376 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5377 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5378 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5380 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5381 ioarcb->data_transfer_length = 0;
5382 ioarcb->read_data_transfer_length = 0;
5383 ioarcb->ioadl_len = 0;
5384 ioarcb->read_ioadl_len = 0;
5385 ioasa->hdr.ioasc = 0;
5386 ioasa->hdr.residual_data_len = 0;
5388 if (ipr_cmd->ioa_cfg->sis64)
5389 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5390 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5392 ioarcb->write_ioadl_addr =
5393 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5394 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5399 * ipr_erp_request_sense - Send request sense to a device
5400 * @ipr_cmd: ipr command struct
5402 * This function sends a request sense to a device as a result
5403 * of a check condition.
5408 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5410 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5411 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5413 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5414 ipr_erp_done(ipr_cmd);
5418 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5420 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5421 cmd_pkt->cdb[0] = REQUEST_SENSE;
5422 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5423 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5424 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5425 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5427 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5428 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5430 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5431 IPR_REQUEST_SENSE_TIMEOUT * 2);
5435 * ipr_erp_cancel_all - Send cancel all to a device
5436 * @ipr_cmd: ipr command struct
5438 * This function sends a cancel all to a device to clear the
5439 * queue. If we are running TCQ on the device, QERR is set to 1,
5440 * which means all outstanding ops have been dropped on the floor.
5441 * Cancel all will return them to us.
5446 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5448 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5449 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5450 struct ipr_cmd_pkt *cmd_pkt;
5454 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5456 if (!scsi_get_tag_type(scsi_cmd->device)) {
5457 ipr_erp_request_sense(ipr_cmd);
5461 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5462 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5463 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5465 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5466 IPR_CANCEL_ALL_TIMEOUT);
5470 * ipr_dump_ioasa - Dump contents of IOASA
5471 * @ioa_cfg: ioa config struct
5472 * @ipr_cmd: ipr command struct
5473 * @res: resource entry struct
5475 * This function is invoked by the interrupt handler when ops
5476 * fail. It will log the IOASA if appropriate. Only called
5482 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5483 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5487 u32 ioasc, fd_ioasc;
5488 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5489 __be32 *ioasa_data = (__be32 *)ioasa;
5492 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5493 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5498 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5501 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5502 error_index = ipr_get_error(fd_ioasc);
5504 error_index = ipr_get_error(ioasc);
5506 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5507 /* Don't log an error if the IOA already logged one */
5508 if (ioasa->hdr.ilid != 0)
5511 if (!ipr_is_gscsi(res))
5514 if (ipr_error_table[error_index].log_ioasa == 0)
5518 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5520 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5521 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5522 data_len = sizeof(struct ipr_ioasa64);
5523 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5524 data_len = sizeof(struct ipr_ioasa);
5526 ipr_err("IOASA Dump:\n");
5528 for (i = 0; i < data_len / 4; i += 4) {
5529 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5530 be32_to_cpu(ioasa_data[i]),
5531 be32_to_cpu(ioasa_data[i+1]),
5532 be32_to_cpu(ioasa_data[i+2]),
5533 be32_to_cpu(ioasa_data[i+3]));
5538 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5540 * @sense_buf: sense data buffer
5545 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5548 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5549 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5550 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5551 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5553 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5555 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5558 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5560 if (ipr_is_vset_device(res) &&
5561 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5562 ioasa->u.vset.failing_lba_hi != 0) {
5563 sense_buf[0] = 0x72;
5564 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5565 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5566 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5570 sense_buf[9] = 0x0A;
5571 sense_buf[10] = 0x80;
5573 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5575 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5576 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5577 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5578 sense_buf[15] = failing_lba & 0x000000ff;
5580 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5582 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5583 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5584 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5585 sense_buf[19] = failing_lba & 0x000000ff;
5587 sense_buf[0] = 0x70;
5588 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5589 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5590 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5592 /* Illegal request */
5593 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5594 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5595 sense_buf[7] = 10; /* additional length */
5597 /* IOARCB was in error */
5598 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5599 sense_buf[15] = 0xC0;
5600 else /* Parameter data was invalid */
5601 sense_buf[15] = 0x80;
5604 ((IPR_FIELD_POINTER_MASK &
5605 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5607 (IPR_FIELD_POINTER_MASK &
5608 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5610 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5611 if (ipr_is_vset_device(res))
5612 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5614 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5616 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5617 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5618 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5619 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5620 sense_buf[6] = failing_lba & 0x000000ff;
5623 sense_buf[7] = 6; /* additional length */
5629 * ipr_get_autosense - Copy autosense data to sense buffer
5630 * @ipr_cmd: ipr command struct
5632 * This function copies the autosense buffer to the buffer
5633 * in the scsi_cmd, if there is autosense available.
5636 * 1 if autosense was available / 0 if not
5638 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5640 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5641 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5643 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5646 if (ipr_cmd->ioa_cfg->sis64)
5647 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5648 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5649 SCSI_SENSE_BUFFERSIZE));
5651 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5652 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5653 SCSI_SENSE_BUFFERSIZE));
5658 * ipr_erp_start - Process an error response for a SCSI op
5659 * @ioa_cfg: ioa config struct
5660 * @ipr_cmd: ipr command struct
5662 * This function determines whether or not to initiate ERP
5663 * on the affected device.
5668 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5669 struct ipr_cmnd *ipr_cmd)
5671 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5672 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5673 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5674 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5677 ipr_scsi_eh_done(ipr_cmd);
5681 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5682 ipr_gen_sense(ipr_cmd);
5684 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5686 switch (masked_ioasc) {
5687 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5688 if (ipr_is_naca_model(res))
5689 scsi_cmd->result |= (DID_ABORT << 16);
5691 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5693 case IPR_IOASC_IR_RESOURCE_HANDLE:
5694 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5695 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5697 case IPR_IOASC_HW_SEL_TIMEOUT:
5698 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5699 if (!ipr_is_naca_model(res))
5700 res->needs_sync_complete = 1;
5702 case IPR_IOASC_SYNC_REQUIRED:
5704 res->needs_sync_complete = 1;
5705 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5707 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5708 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5709 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5711 case IPR_IOASC_BUS_WAS_RESET:
5712 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5714 * Report the bus reset and ask for a retry. The device
5715 * will give CC/UA the next command.
5717 if (!res->resetting_device)
5718 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5719 scsi_cmd->result |= (DID_ERROR << 16);
5720 if (!ipr_is_naca_model(res))
5721 res->needs_sync_complete = 1;
5723 case IPR_IOASC_HW_DEV_BUS_STATUS:
5724 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5725 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5726 if (!ipr_get_autosense(ipr_cmd)) {
5727 if (!ipr_is_naca_model(res)) {
5728 ipr_erp_cancel_all(ipr_cmd);
5733 if (!ipr_is_naca_model(res))
5734 res->needs_sync_complete = 1;
5736 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5739 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5740 scsi_cmd->result |= (DID_ERROR << 16);
5741 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5742 res->needs_sync_complete = 1;
5746 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5747 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5748 scsi_cmd->scsi_done(scsi_cmd);
5752 * ipr_scsi_done - mid-layer done function
5753 * @ipr_cmd: ipr command struct
5755 * This function is invoked by the interrupt handler for
5756 * ops generated by the SCSI mid-layer
5761 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5764 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5765 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5767 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5769 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5770 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5771 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5772 scsi_cmd->scsi_done(scsi_cmd);
5774 ipr_erp_start(ioa_cfg, ipr_cmd);
5778 * ipr_queuecommand - Queue a mid-layer request
5779 * @scsi_cmd: scsi command struct
5780 * @done: done function
5782 * This function queues a request generated by the mid-layer.
5786 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5787 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5789 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5790 void (*done) (struct scsi_cmnd *))
5792 struct ipr_ioa_cfg *ioa_cfg;
5793 struct ipr_resource_entry *res;
5794 struct ipr_ioarcb *ioarcb;
5795 struct ipr_cmnd *ipr_cmd;
5798 scsi_cmd->scsi_done = done;
5799 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5800 res = scsi_cmd->device->hostdata;
5801 scsi_cmd->result = (DID_OK << 16);
5804 * We are currently blocking all devices due to a host reset
5805 * We have told the host to stop giving us new requests, but
5806 * ERP ops don't count. FIXME
5808 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5809 return SCSI_MLQUEUE_HOST_BUSY;
5812 * FIXME - Create scsi_set_host_offline interface
5813 * and the ioa_is_dead check can be removed
5815 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5816 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5817 scsi_cmd->result = (DID_NO_CONNECT << 16);
5818 scsi_cmd->scsi_done(scsi_cmd);
5822 if (ipr_is_gata(res) && res->sata_port)
5823 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5825 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5826 ioarcb = &ipr_cmd->ioarcb;
5827 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5829 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5830 ipr_cmd->scsi_cmd = scsi_cmd;
5831 ioarcb->res_handle = res->res_handle;
5832 ipr_cmd->done = ipr_scsi_done;
5833 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5835 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5836 if (scsi_cmd->underflow == 0)
5837 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5839 if (res->needs_sync_complete) {
5840 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5841 res->needs_sync_complete = 0;
5844 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5845 if (ipr_is_gscsi(res))
5846 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5847 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5848 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5851 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5852 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5853 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5855 if (likely(rc == 0)) {
5857 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5859 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5862 if (unlikely(rc != 0)) {
5863 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5864 return SCSI_MLQUEUE_HOST_BUSY;
5867 ipr_send_command(ipr_cmd);
5871 static DEF_SCSI_QCMD(ipr_queuecommand)
5874 * ipr_ioctl - IOCTL handler
5875 * @sdev: scsi device struct
5880 * 0 on success / other on failure
5882 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5884 struct ipr_resource_entry *res;
5886 res = (struct ipr_resource_entry *)sdev->hostdata;
5887 if (res && ipr_is_gata(res)) {
5888 if (cmd == HDIO_GET_IDENTITY)
5890 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5897 * ipr_info - Get information about the card/driver
5898 * @scsi_host: scsi host struct
5901 * pointer to buffer with description string
5903 static const char * ipr_ioa_info(struct Scsi_Host *host)
5905 static char buffer[512];
5906 struct ipr_ioa_cfg *ioa_cfg;
5907 unsigned long lock_flags = 0;
5909 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5911 spin_lock_irqsave(host->host_lock, lock_flags);
5912 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5913 spin_unlock_irqrestore(host->host_lock, lock_flags);
5918 static struct scsi_host_template driver_template = {
5919 .module = THIS_MODULE,
5921 .info = ipr_ioa_info,
5923 .queuecommand = ipr_queuecommand,
5924 .eh_abort_handler = ipr_eh_abort,
5925 .eh_device_reset_handler = ipr_eh_dev_reset,
5926 .eh_host_reset_handler = ipr_eh_host_reset,
5927 .slave_alloc = ipr_slave_alloc,
5928 .slave_configure = ipr_slave_configure,
5929 .slave_destroy = ipr_slave_destroy,
5930 .target_alloc = ipr_target_alloc,
5931 .target_destroy = ipr_target_destroy,
5932 .change_queue_depth = ipr_change_queue_depth,
5933 .change_queue_type = ipr_change_queue_type,
5934 .bios_param = ipr_biosparam,
5935 .can_queue = IPR_MAX_COMMANDS,
5937 .sg_tablesize = IPR_MAX_SGLIST,
5938 .max_sectors = IPR_IOA_MAX_SECTORS,
5939 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5940 .use_clustering = ENABLE_CLUSTERING,
5941 .shost_attrs = ipr_ioa_attrs,
5942 .sdev_attrs = ipr_dev_attrs,
5943 .proc_name = IPR_NAME
5947 * ipr_ata_phy_reset - libata phy_reset handler
5948 * @ap: ata port to reset
5951 static void ipr_ata_phy_reset(struct ata_port *ap)
5953 unsigned long flags;
5954 struct ipr_sata_port *sata_port = ap->private_data;
5955 struct ipr_resource_entry *res = sata_port->res;
5956 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5960 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5961 while(ioa_cfg->in_reset_reload) {
5962 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5963 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5964 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5967 if (!ioa_cfg->allow_cmds)
5970 rc = ipr_device_reset(ioa_cfg, res);
5973 ap->link.device[0].class = ATA_DEV_NONE;
5977 ap->link.device[0].class = res->ata_class;
5978 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5979 ap->link.device[0].class = ATA_DEV_NONE;
5982 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5987 * ipr_ata_post_internal - Cleanup after an internal command
5988 * @qc: ATA queued command
5993 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5995 struct ipr_sata_port *sata_port = qc->ap->private_data;
5996 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5997 struct ipr_cmnd *ipr_cmd;
5998 unsigned long flags;
6000 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6001 while(ioa_cfg->in_reset_reload) {
6002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6003 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6004 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6007 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
6008 if (ipr_cmd->qc == qc) {
6009 ipr_device_reset(ioa_cfg, sata_port->res);
6013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6017 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6018 * @regs: destination
6019 * @tf: source ATA taskfile
6024 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6025 struct ata_taskfile *tf)
6027 regs->feature = tf->feature;
6028 regs->nsect = tf->nsect;
6029 regs->lbal = tf->lbal;
6030 regs->lbam = tf->lbam;
6031 regs->lbah = tf->lbah;
6032 regs->device = tf->device;
6033 regs->command = tf->command;
6034 regs->hob_feature = tf->hob_feature;
6035 regs->hob_nsect = tf->hob_nsect;
6036 regs->hob_lbal = tf->hob_lbal;
6037 regs->hob_lbam = tf->hob_lbam;
6038 regs->hob_lbah = tf->hob_lbah;
6039 regs->ctl = tf->ctl;
6043 * ipr_sata_done - done function for SATA commands
6044 * @ipr_cmd: ipr command struct
6046 * This function is invoked by the interrupt handler for
6047 * ops generated by the SCSI mid-layer to SATA devices
6052 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6054 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6055 struct ata_queued_cmd *qc = ipr_cmd->qc;
6056 struct ipr_sata_port *sata_port = qc->ap->private_data;
6057 struct ipr_resource_entry *res = sata_port->res;
6058 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6060 if (ipr_cmd->ioa_cfg->sis64)
6061 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6062 sizeof(struct ipr_ioasa_gata));
6064 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6065 sizeof(struct ipr_ioasa_gata));
6066 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6068 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6069 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6071 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6072 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6074 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6075 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6076 ata_qc_complete(qc);
6080 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6081 * @ipr_cmd: ipr command struct
6082 * @qc: ATA queued command
6085 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6086 struct ata_queued_cmd *qc)
6088 u32 ioadl_flags = 0;
6089 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6090 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6091 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6092 int len = qc->nbytes;
6093 struct scatterlist *sg;
6095 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6100 if (qc->dma_dir == DMA_TO_DEVICE) {
6101 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6102 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6103 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6104 ioadl_flags = IPR_IOADL_FLAGS_READ;
6106 ioarcb->data_transfer_length = cpu_to_be32(len);
6108 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6109 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6110 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6112 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6113 ioadl64->flags = cpu_to_be32(ioadl_flags);
6114 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6115 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6117 last_ioadl64 = ioadl64;
6121 if (likely(last_ioadl64))
6122 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6126 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6127 * @ipr_cmd: ipr command struct
6128 * @qc: ATA queued command
6131 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6132 struct ata_queued_cmd *qc)
6134 u32 ioadl_flags = 0;
6135 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6136 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6137 struct ipr_ioadl_desc *last_ioadl = NULL;
6138 int len = qc->nbytes;
6139 struct scatterlist *sg;
6145 if (qc->dma_dir == DMA_TO_DEVICE) {
6146 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6147 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6148 ioarcb->data_transfer_length = cpu_to_be32(len);
6150 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6151 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6152 ioadl_flags = IPR_IOADL_FLAGS_READ;
6153 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6154 ioarcb->read_ioadl_len =
6155 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6158 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6159 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6160 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6166 if (likely(last_ioadl))
6167 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6171 * ipr_qc_issue - Issue a SATA qc to a device
6172 * @qc: queued command
6177 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6179 struct ata_port *ap = qc->ap;
6180 struct ipr_sata_port *sata_port = ap->private_data;
6181 struct ipr_resource_entry *res = sata_port->res;
6182 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6183 struct ipr_cmnd *ipr_cmd;
6184 struct ipr_ioarcb *ioarcb;
6185 struct ipr_ioarcb_ata_regs *regs;
6187 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6188 return AC_ERR_SYSTEM;
6190 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6191 ioarcb = &ipr_cmd->ioarcb;
6193 if (ioa_cfg->sis64) {
6194 regs = &ipr_cmd->i.ata_ioadl.regs;
6195 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6197 regs = &ioarcb->u.add_data.u.regs;
6199 memset(regs, 0, sizeof(*regs));
6200 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6202 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6204 ipr_cmd->done = ipr_sata_done;
6205 ipr_cmd->ioarcb.res_handle = res->res_handle;
6206 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6207 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6208 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6209 ipr_cmd->dma_use_sg = qc->n_elem;
6212 ipr_build_ata_ioadl64(ipr_cmd, qc);
6214 ipr_build_ata_ioadl(ipr_cmd, qc);
6216 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6217 ipr_copy_sata_tf(regs, &qc->tf);
6218 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6219 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6221 switch (qc->tf.protocol) {
6222 case ATA_PROT_NODATA:
6227 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6230 case ATAPI_PROT_PIO:
6231 case ATAPI_PROT_NODATA:
6232 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6235 case ATAPI_PROT_DMA:
6236 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6237 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6242 return AC_ERR_INVALID;
6245 ipr_send_command(ipr_cmd);
6251 * ipr_qc_fill_rtf - Read result TF
6252 * @qc: ATA queued command
6257 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6259 struct ipr_sata_port *sata_port = qc->ap->private_data;
6260 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6261 struct ata_taskfile *tf = &qc->result_tf;
6263 tf->feature = g->error;
6264 tf->nsect = g->nsect;
6268 tf->device = g->device;
6269 tf->command = g->status;
6270 tf->hob_nsect = g->hob_nsect;
6271 tf->hob_lbal = g->hob_lbal;
6272 tf->hob_lbam = g->hob_lbam;
6273 tf->hob_lbah = g->hob_lbah;
6274 tf->ctl = g->alt_status;
6279 static struct ata_port_operations ipr_sata_ops = {
6280 .phy_reset = ipr_ata_phy_reset,
6281 .hardreset = ipr_sata_reset,
6282 .post_internal_cmd = ipr_ata_post_internal,
6283 .qc_prep = ata_noop_qc_prep,
6284 .qc_issue = ipr_qc_issue,
6285 .qc_fill_rtf = ipr_qc_fill_rtf,
6286 .port_start = ata_sas_port_start,
6287 .port_stop = ata_sas_port_stop
6290 static struct ata_port_info sata_port_info = {
6291 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
6292 .pio_mask = ATA_PIO4_ONLY,
6293 .mwdma_mask = ATA_MWDMA2,
6294 .udma_mask = ATA_UDMA6,
6295 .port_ops = &ipr_sata_ops
6298 #ifdef CONFIG_PPC_PSERIES
6299 static const u16 ipr_blocked_processors[] = {
6311 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6312 * @ioa_cfg: ioa cfg struct
6314 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6315 * certain pSeries hardware. This function determines if the given
6316 * adapter is in one of these confgurations or not.
6319 * 1 if adapter is not supported / 0 if adapter is supported
6321 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6325 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6326 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6327 if (__is_processor(ipr_blocked_processors[i]))
6334 #define ipr_invalid_adapter(ioa_cfg) 0
6338 * ipr_ioa_bringdown_done - IOA bring down completion.
6339 * @ipr_cmd: ipr command struct
6341 * This function processes the completion of an adapter bring down.
6342 * It wakes any reset sleepers.
6347 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6352 ioa_cfg->in_reset_reload = 0;
6353 ioa_cfg->reset_retries = 0;
6354 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6355 wake_up_all(&ioa_cfg->reset_wait_q);
6357 spin_unlock_irq(ioa_cfg->host->host_lock);
6358 scsi_unblock_requests(ioa_cfg->host);
6359 spin_lock_irq(ioa_cfg->host->host_lock);
6362 return IPR_RC_JOB_RETURN;
6366 * ipr_ioa_reset_done - IOA reset completion.
6367 * @ipr_cmd: ipr command struct
6369 * This function processes the completion of an adapter reset.
6370 * It schedules any necessary mid-layer add/removes and
6371 * wakes any reset sleepers.
6376 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6378 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6379 struct ipr_resource_entry *res;
6380 struct ipr_hostrcb *hostrcb, *temp;
6384 ioa_cfg->in_reset_reload = 0;
6385 ioa_cfg->allow_cmds = 1;
6386 ioa_cfg->reset_cmd = NULL;
6387 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6389 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6390 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6395 schedule_work(&ioa_cfg->work_q);
6397 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6398 list_del(&hostrcb->queue);
6399 if (i++ < IPR_NUM_LOG_HCAMS)
6400 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6402 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6405 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6406 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6408 ioa_cfg->reset_retries = 0;
6409 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6410 wake_up_all(&ioa_cfg->reset_wait_q);
6412 spin_unlock(ioa_cfg->host->host_lock);
6413 scsi_unblock_requests(ioa_cfg->host);
6414 spin_lock(ioa_cfg->host->host_lock);
6416 if (!ioa_cfg->allow_cmds)
6417 scsi_block_requests(ioa_cfg->host);
6420 return IPR_RC_JOB_RETURN;
6424 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6425 * @supported_dev: supported device struct
6426 * @vpids: vendor product id struct
6431 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6432 struct ipr_std_inq_vpids *vpids)
6434 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6435 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6436 supported_dev->num_records = 1;
6437 supported_dev->data_length =
6438 cpu_to_be16(sizeof(struct ipr_supported_device));
6439 supported_dev->reserved = 0;
6443 * ipr_set_supported_devs - Send Set Supported Devices for a device
6444 * @ipr_cmd: ipr command struct
6446 * This function sends a Set Supported Devices to the adapter
6449 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6451 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6453 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6454 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6455 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6456 struct ipr_resource_entry *res = ipr_cmd->u.res;
6458 ipr_cmd->job_step = ipr_ioa_reset_done;
6460 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6461 if (!ipr_is_scsi_disk(res))
6464 ipr_cmd->u.res = res;
6465 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6467 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6468 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6471 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6472 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6473 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6474 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6476 ipr_init_ioadl(ipr_cmd,
6477 ioa_cfg->vpd_cbs_dma +
6478 offsetof(struct ipr_misc_cbs, supp_dev),
6479 sizeof(struct ipr_supported_device),
6480 IPR_IOADL_FLAGS_WRITE_LAST);
6482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6483 IPR_SET_SUP_DEVICE_TIMEOUT);
6485 if (!ioa_cfg->sis64)
6486 ipr_cmd->job_step = ipr_set_supported_devs;
6487 return IPR_RC_JOB_RETURN;
6490 return IPR_RC_JOB_CONTINUE;
6494 * ipr_get_mode_page - Locate specified mode page
6495 * @mode_pages: mode page buffer
6496 * @page_code: page code to find
6497 * @len: minimum required length for mode page
6500 * pointer to mode page / NULL on failure
6502 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6503 u32 page_code, u32 len)
6505 struct ipr_mode_page_hdr *mode_hdr;
6509 if (!mode_pages || (mode_pages->hdr.length == 0))
6512 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6513 mode_hdr = (struct ipr_mode_page_hdr *)
6514 (mode_pages->data + mode_pages->hdr.block_desc_len);
6517 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6518 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6522 page_length = (sizeof(struct ipr_mode_page_hdr) +
6523 mode_hdr->page_length);
6524 length -= page_length;
6525 mode_hdr = (struct ipr_mode_page_hdr *)
6526 ((unsigned long)mode_hdr + page_length);
6533 * ipr_check_term_power - Check for term power errors
6534 * @ioa_cfg: ioa config struct
6535 * @mode_pages: IOAFP mode pages buffer
6537 * Check the IOAFP's mode page 28 for term power errors
6542 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6543 struct ipr_mode_pages *mode_pages)
6547 struct ipr_dev_bus_entry *bus;
6548 struct ipr_mode_page28 *mode_page;
6550 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6551 sizeof(struct ipr_mode_page28));
6553 entry_length = mode_page->entry_length;
6555 bus = mode_page->bus;
6557 for (i = 0; i < mode_page->num_entries; i++) {
6558 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6559 dev_err(&ioa_cfg->pdev->dev,
6560 "Term power is absent on scsi bus %d\n",
6564 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6569 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6570 * @ioa_cfg: ioa config struct
6572 * Looks through the config table checking for SES devices. If
6573 * the SES device is in the SES table indicating a maximum SCSI
6574 * bus speed, the speed is limited for the bus.
6579 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6584 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6585 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6586 ioa_cfg->bus_attr[i].bus_width);
6588 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6589 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6594 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6595 * @ioa_cfg: ioa config struct
6596 * @mode_pages: mode page 28 buffer
6598 * Updates mode page 28 based on driver configuration
6603 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6604 struct ipr_mode_pages *mode_pages)
6606 int i, entry_length;
6607 struct ipr_dev_bus_entry *bus;
6608 struct ipr_bus_attributes *bus_attr;
6609 struct ipr_mode_page28 *mode_page;
6611 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6612 sizeof(struct ipr_mode_page28));
6614 entry_length = mode_page->entry_length;
6616 /* Loop for each device bus entry */
6617 for (i = 0, bus = mode_page->bus;
6618 i < mode_page->num_entries;
6619 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6620 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6621 dev_err(&ioa_cfg->pdev->dev,
6622 "Invalid resource address reported: 0x%08X\n",
6623 IPR_GET_PHYS_LOC(bus->res_addr));
6627 bus_attr = &ioa_cfg->bus_attr[i];
6628 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6629 bus->bus_width = bus_attr->bus_width;
6630 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6631 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6632 if (bus_attr->qas_enabled)
6633 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6635 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6640 * ipr_build_mode_select - Build a mode select command
6641 * @ipr_cmd: ipr command struct
6642 * @res_handle: resource handle to send command to
6643 * @parm: Byte 2 of Mode Sense command
6644 * @dma_addr: DMA buffer address
6645 * @xfer_len: data transfer length
6650 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6651 __be32 res_handle, u8 parm,
6652 dma_addr_t dma_addr, u8 xfer_len)
6654 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6656 ioarcb->res_handle = res_handle;
6657 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6658 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6659 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6660 ioarcb->cmd_pkt.cdb[1] = parm;
6661 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6663 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6667 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6668 * @ipr_cmd: ipr command struct
6670 * This function sets up the SCSI bus attributes and sends
6671 * a Mode Select for Page 28 to activate them.
6676 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6678 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6679 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6683 ipr_scsi_bus_speed_limit(ioa_cfg);
6684 ipr_check_term_power(ioa_cfg, mode_pages);
6685 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6686 length = mode_pages->hdr.length + 1;
6687 mode_pages->hdr.length = 0;
6689 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6690 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6693 ipr_cmd->job_step = ipr_set_supported_devs;
6694 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6695 struct ipr_resource_entry, queue);
6696 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6699 return IPR_RC_JOB_RETURN;
6703 * ipr_build_mode_sense - Builds a mode sense command
6704 * @ipr_cmd: ipr command struct
6705 * @res: resource entry struct
6706 * @parm: Byte 2 of mode sense command
6707 * @dma_addr: DMA address of mode sense buffer
6708 * @xfer_len: Size of DMA buffer
6713 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6715 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6717 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6719 ioarcb->res_handle = res_handle;
6720 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6721 ioarcb->cmd_pkt.cdb[2] = parm;
6722 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6723 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6725 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6729 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6730 * @ipr_cmd: ipr command struct
6732 * This function handles the failure of an IOA bringup command.
6737 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6740 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6742 dev_err(&ioa_cfg->pdev->dev,
6743 "0x%02X failed with IOASC: 0x%08X\n",
6744 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6746 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6747 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6748 return IPR_RC_JOB_RETURN;
6752 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6753 * @ipr_cmd: ipr command struct
6755 * This function handles the failure of a Mode Sense to the IOAFP.
6756 * Some adapters do not handle all mode pages.
6759 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6761 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6764 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6766 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6767 ipr_cmd->job_step = ipr_set_supported_devs;
6768 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6769 struct ipr_resource_entry, queue);
6770 return IPR_RC_JOB_CONTINUE;
6773 return ipr_reset_cmd_failed(ipr_cmd);
6777 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6778 * @ipr_cmd: ipr command struct
6780 * This function send a Page 28 mode sense to the IOA to
6781 * retrieve SCSI bus attributes.
6786 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6788 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6791 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6792 0x28, ioa_cfg->vpd_cbs_dma +
6793 offsetof(struct ipr_misc_cbs, mode_pages),
6794 sizeof(struct ipr_mode_pages));
6796 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6797 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6799 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6802 return IPR_RC_JOB_RETURN;
6806 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6807 * @ipr_cmd: ipr command struct
6809 * This function enables dual IOA RAID support if possible.
6814 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6816 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6817 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6818 struct ipr_mode_page24 *mode_page;
6822 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6823 sizeof(struct ipr_mode_page24));
6826 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6828 length = mode_pages->hdr.length + 1;
6829 mode_pages->hdr.length = 0;
6831 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6832 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6835 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6836 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6839 return IPR_RC_JOB_RETURN;
6843 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6844 * @ipr_cmd: ipr command struct
6846 * This function handles the failure of a Mode Sense to the IOAFP.
6847 * Some adapters do not handle all mode pages.
6850 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6852 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6854 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6856 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6857 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6858 return IPR_RC_JOB_CONTINUE;
6861 return ipr_reset_cmd_failed(ipr_cmd);
6865 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6866 * @ipr_cmd: ipr command struct
6868 * This function send a mode sense to the IOA to retrieve
6869 * the IOA Advanced Function Control mode page.
6874 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6876 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6879 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6880 0x24, ioa_cfg->vpd_cbs_dma +
6881 offsetof(struct ipr_misc_cbs, mode_pages),
6882 sizeof(struct ipr_mode_pages));
6884 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6885 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6887 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6890 return IPR_RC_JOB_RETURN;
6894 * ipr_init_res_table - Initialize the resource table
6895 * @ipr_cmd: ipr command struct
6897 * This function looks through the existing resource table, comparing
6898 * it with the config table. This function will take care of old/new
6899 * devices and schedule adding/removing them from the mid-layer
6903 * IPR_RC_JOB_CONTINUE
6905 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6907 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6908 struct ipr_resource_entry *res, *temp;
6909 struct ipr_config_table_entry_wrapper cfgtew;
6910 int entries, found, flag, i;
6915 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6917 flag = ioa_cfg->u.cfg_table->hdr.flags;
6919 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6920 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6922 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6923 list_move_tail(&res->queue, &old_res);
6926 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6928 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6930 for (i = 0; i < entries; i++) {
6932 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6934 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6937 list_for_each_entry_safe(res, temp, &old_res, queue) {
6938 if (ipr_is_same_device(res, &cfgtew)) {
6939 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6946 if (list_empty(&ioa_cfg->free_res_q)) {
6947 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6952 res = list_entry(ioa_cfg->free_res_q.next,
6953 struct ipr_resource_entry, queue);
6954 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6955 ipr_init_res_entry(res, &cfgtew);
6957 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6958 res->sdev->allow_restart = 1;
6961 ipr_update_res_entry(res, &cfgtew);
6964 list_for_each_entry_safe(res, temp, &old_res, queue) {
6966 res->del_from_ml = 1;
6967 res->res_handle = IPR_INVALID_RES_HANDLE;
6968 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6972 list_for_each_entry_safe(res, temp, &old_res, queue) {
6973 ipr_clear_res_target(res);
6974 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6977 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6978 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6983 return IPR_RC_JOB_CONTINUE;
6987 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6988 * @ipr_cmd: ipr command struct
6990 * This function sends a Query IOA Configuration command
6991 * to the adapter to retrieve the IOA configuration table.
6996 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7000 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7001 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7004 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7005 ioa_cfg->dual_raid = 1;
7006 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7007 ucode_vpd->major_release, ucode_vpd->card_type,
7008 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7009 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7010 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7012 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7013 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7014 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7015 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7017 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7018 IPR_IOADL_FLAGS_READ_LAST);
7020 ipr_cmd->job_step = ipr_init_res_table;
7022 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7025 return IPR_RC_JOB_RETURN;
7029 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7030 * @ipr_cmd: ipr command struct
7032 * This utility function sends an inquiry to the adapter.
7037 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7038 dma_addr_t dma_addr, u8 xfer_len)
7040 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7043 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7044 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7046 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7047 ioarcb->cmd_pkt.cdb[1] = flags;
7048 ioarcb->cmd_pkt.cdb[2] = page;
7049 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7051 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7053 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7058 * ipr_inquiry_page_supported - Is the given inquiry page supported
7059 * @page0: inquiry page 0 buffer
7062 * This function determines if the specified inquiry page is supported.
7065 * 1 if page is supported / 0 if not
7067 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7071 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7072 if (page0->page[i] == page)
7079 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7080 * @ipr_cmd: ipr command struct
7082 * This function sends a Page 0xD0 inquiry to the adapter
7083 * to retrieve adapter capabilities.
7086 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7088 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7091 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7092 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7095 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7096 memset(cap, 0, sizeof(*cap));
7098 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7099 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7100 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7101 sizeof(struct ipr_inquiry_cap));
7102 return IPR_RC_JOB_RETURN;
7106 return IPR_RC_JOB_CONTINUE;
7110 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7111 * @ipr_cmd: ipr command struct
7113 * This function sends a Page 3 inquiry to the adapter
7114 * to retrieve software VPD information.
7117 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7119 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7121 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7125 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7127 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7128 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7129 sizeof(struct ipr_inquiry_page3));
7132 return IPR_RC_JOB_RETURN;
7136 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7137 * @ipr_cmd: ipr command struct
7139 * This function sends a Page 0 inquiry to the adapter
7140 * to retrieve supported inquiry pages.
7143 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7145 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7147 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7152 /* Grab the type out of the VPD and store it away */
7153 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7155 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7157 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7159 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7160 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7161 sizeof(struct ipr_inquiry_page0));
7164 return IPR_RC_JOB_RETURN;
7168 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7169 * @ipr_cmd: ipr command struct
7171 * This function sends a standard inquiry to the adapter.
7176 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7178 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7181 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7183 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7184 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7185 sizeof(struct ipr_ioa_vpd));
7188 return IPR_RC_JOB_RETURN;
7192 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7193 * @ipr_cmd: ipr command struct
7195 * This function send an Identify Host Request Response Queue
7196 * command to establish the HRRQ with the adapter.
7201 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7203 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7204 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7207 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7209 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7210 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7212 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7214 ioarcb->cmd_pkt.cdb[1] = 0x1;
7215 ioarcb->cmd_pkt.cdb[2] =
7216 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7217 ioarcb->cmd_pkt.cdb[3] =
7218 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7219 ioarcb->cmd_pkt.cdb[4] =
7220 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7221 ioarcb->cmd_pkt.cdb[5] =
7222 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7223 ioarcb->cmd_pkt.cdb[7] =
7224 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7225 ioarcb->cmd_pkt.cdb[8] =
7226 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7228 if (ioa_cfg->sis64) {
7229 ioarcb->cmd_pkt.cdb[10] =
7230 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7231 ioarcb->cmd_pkt.cdb[11] =
7232 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7233 ioarcb->cmd_pkt.cdb[12] =
7234 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7235 ioarcb->cmd_pkt.cdb[13] =
7236 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7239 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7241 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7244 return IPR_RC_JOB_RETURN;
7248 * ipr_reset_timer_done - Adapter reset timer function
7249 * @ipr_cmd: ipr command struct
7251 * Description: This function is used in adapter reset processing
7252 * for timing events. If the reset_cmd pointer in the IOA
7253 * config struct is not this adapter's we are doing nested
7254 * resets and fail_all_ops will take care of freeing the
7260 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7262 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7263 unsigned long lock_flags = 0;
7265 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7267 if (ioa_cfg->reset_cmd == ipr_cmd) {
7268 list_del(&ipr_cmd->queue);
7269 ipr_cmd->done(ipr_cmd);
7272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7276 * ipr_reset_start_timer - Start a timer for adapter reset job
7277 * @ipr_cmd: ipr command struct
7278 * @timeout: timeout value
7280 * Description: This function is used in adapter reset processing
7281 * for timing events. If the reset_cmd pointer in the IOA
7282 * config struct is not this adapter's we are doing nested
7283 * resets and fail_all_ops will take care of freeing the
7289 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7290 unsigned long timeout)
7292 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7293 ipr_cmd->done = ipr_reset_ioa_job;
7295 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7296 ipr_cmd->timer.expires = jiffies + timeout;
7297 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7298 add_timer(&ipr_cmd->timer);
7302 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7303 * @ioa_cfg: ioa cfg struct
7308 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7310 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7312 /* Initialize Host RRQ pointers */
7313 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7314 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7315 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7316 ioa_cfg->toggle_bit = 1;
7318 /* Zero out config table */
7319 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7323 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7324 * @ipr_cmd: ipr command struct
7327 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7329 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7331 unsigned long stage, stage_time;
7333 volatile u32 int_reg;
7334 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7337 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7338 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7339 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7341 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7343 /* sanity check the stage_time value */
7344 if (stage_time == 0)
7345 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7346 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7347 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7348 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7349 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7351 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7352 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7353 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7354 stage_time = ioa_cfg->transop_timeout;
7355 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7356 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7357 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7358 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7359 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7360 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7361 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7362 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7363 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7364 return IPR_RC_JOB_CONTINUE;
7368 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7369 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7370 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7371 ipr_cmd->done = ipr_reset_ioa_job;
7372 add_timer(&ipr_cmd->timer);
7373 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7375 return IPR_RC_JOB_RETURN;
7379 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7380 * @ipr_cmd: ipr command struct
7382 * This function reinitializes some control blocks and
7383 * enables destructive diagnostics on the adapter.
7388 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7391 volatile u32 int_reg;
7392 volatile u64 maskval;
7395 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7396 ipr_init_ioa_mem(ioa_cfg);
7398 ioa_cfg->allow_interrupts = 1;
7399 if (ioa_cfg->sis64) {
7400 /* Set the adapter to the correct endian mode. */
7401 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7402 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7405 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7407 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7408 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7409 ioa_cfg->regs.clr_interrupt_mask_reg32);
7410 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7411 return IPR_RC_JOB_CONTINUE;
7414 /* Enable destructive diagnostics on IOA */
7415 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7417 if (ioa_cfg->sis64) {
7418 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7419 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7420 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7422 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7424 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7426 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7428 if (ioa_cfg->sis64) {
7429 ipr_cmd->job_step = ipr_reset_next_stage;
7430 return IPR_RC_JOB_CONTINUE;
7433 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7434 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7435 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7436 ipr_cmd->done = ipr_reset_ioa_job;
7437 add_timer(&ipr_cmd->timer);
7438 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7441 return IPR_RC_JOB_RETURN;
7445 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7446 * @ipr_cmd: ipr command struct
7448 * This function is invoked when an adapter dump has run out
7449 * of processing time.
7452 * IPR_RC_JOB_CONTINUE
7454 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7458 if (ioa_cfg->sdt_state == GET_DUMP)
7459 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7460 else if (ioa_cfg->sdt_state == READ_DUMP)
7461 ioa_cfg->sdt_state = ABORT_DUMP;
7463 ioa_cfg->dump_timeout = 1;
7464 ipr_cmd->job_step = ipr_reset_alert;
7466 return IPR_RC_JOB_CONTINUE;
7470 * ipr_unit_check_no_data - Log a unit check/no data error log
7471 * @ioa_cfg: ioa config struct
7473 * Logs an error indicating the adapter unit checked, but for some
7474 * reason, we were unable to fetch the unit check buffer.
7479 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7481 ioa_cfg->errors_logged++;
7482 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7486 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7487 * @ioa_cfg: ioa config struct
7489 * Fetches the unit check buffer from the adapter by clocking the data
7490 * through the mailbox register.
7495 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7497 unsigned long mailbox;
7498 struct ipr_hostrcb *hostrcb;
7499 struct ipr_uc_sdt sdt;
7503 mailbox = readl(ioa_cfg->ioa_mailbox);
7505 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7506 ipr_unit_check_no_data(ioa_cfg);
7510 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7511 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7512 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7514 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7515 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7516 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7517 ipr_unit_check_no_data(ioa_cfg);
7521 /* Find length of the first sdt entry (UC buffer) */
7522 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7523 length = be32_to_cpu(sdt.entry[0].end_token);
7525 length = (be32_to_cpu(sdt.entry[0].end_token) -
7526 be32_to_cpu(sdt.entry[0].start_token)) &
7527 IPR_FMT2_MBX_ADDR_MASK;
7529 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7530 struct ipr_hostrcb, queue);
7531 list_del(&hostrcb->queue);
7532 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7534 rc = ipr_get_ldump_data_section(ioa_cfg,
7535 be32_to_cpu(sdt.entry[0].start_token),
7536 (__be32 *)&hostrcb->hcam,
7537 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7540 ipr_handle_log_data(ioa_cfg, hostrcb);
7541 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7542 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7543 ioa_cfg->sdt_state == GET_DUMP)
7544 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7546 ipr_unit_check_no_data(ioa_cfg);
7548 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7552 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7553 * @ipr_cmd: ipr command struct
7555 * Description: This function will call to get the unit check buffer.
7560 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7562 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7565 ioa_cfg->ioa_unit_checked = 0;
7566 ipr_get_unit_check_buffer(ioa_cfg);
7567 ipr_cmd->job_step = ipr_reset_alert;
7568 ipr_reset_start_timer(ipr_cmd, 0);
7571 return IPR_RC_JOB_RETURN;
7575 * ipr_reset_restore_cfg_space - Restore PCI config space.
7576 * @ipr_cmd: ipr command struct
7578 * Description: This function restores the saved PCI config space of
7579 * the adapter, fails all outstanding ops back to the callers, and
7580 * fetches the dump/unit check if applicable to this reset.
7583 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7585 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7591 ioa_cfg->pdev->state_saved = true;
7592 pci_restore_state(ioa_cfg->pdev);
7594 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7595 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7596 return IPR_RC_JOB_CONTINUE;
7599 ipr_fail_all_ops(ioa_cfg);
7601 if (ioa_cfg->sis64) {
7602 /* Set the adapter to the correct endian mode. */
7603 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7604 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7607 if (ioa_cfg->ioa_unit_checked) {
7608 if (ioa_cfg->sis64) {
7609 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7610 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7611 return IPR_RC_JOB_RETURN;
7613 ioa_cfg->ioa_unit_checked = 0;
7614 ipr_get_unit_check_buffer(ioa_cfg);
7615 ipr_cmd->job_step = ipr_reset_alert;
7616 ipr_reset_start_timer(ipr_cmd, 0);
7617 return IPR_RC_JOB_RETURN;
7621 if (ioa_cfg->in_ioa_bringdown) {
7622 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7624 ipr_cmd->job_step = ipr_reset_enable_ioa;
7626 if (GET_DUMP == ioa_cfg->sdt_state) {
7627 ioa_cfg->sdt_state = READ_DUMP;
7628 ioa_cfg->dump_timeout = 0;
7630 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7632 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
7633 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7634 schedule_work(&ioa_cfg->work_q);
7635 return IPR_RC_JOB_RETURN;
7640 return IPR_RC_JOB_CONTINUE;
7644 * ipr_reset_bist_done - BIST has completed on the adapter.
7645 * @ipr_cmd: ipr command struct
7647 * Description: Unblock config space and resume the reset process.
7650 * IPR_RC_JOB_CONTINUE
7652 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7654 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7657 if (ioa_cfg->cfg_locked)
7658 pci_cfg_access_unlock(ioa_cfg->pdev);
7659 ioa_cfg->cfg_locked = 0;
7660 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7662 return IPR_RC_JOB_CONTINUE;
7666 * ipr_reset_start_bist - Run BIST on the adapter.
7667 * @ipr_cmd: ipr command struct
7669 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7672 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7674 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7676 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7677 int rc = PCIBIOS_SUCCESSFUL;
7680 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7681 writel(IPR_UPROCI_SIS64_START_BIST,
7682 ioa_cfg->regs.set_uproc_interrupt_reg32);
7684 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7686 if (rc == PCIBIOS_SUCCESSFUL) {
7687 ipr_cmd->job_step = ipr_reset_bist_done;
7688 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7689 rc = IPR_RC_JOB_RETURN;
7691 if (ioa_cfg->cfg_locked)
7692 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7693 ioa_cfg->cfg_locked = 0;
7694 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7695 rc = IPR_RC_JOB_CONTINUE;
7703 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7704 * @ipr_cmd: ipr command struct
7706 * Description: This clears PCI reset to the adapter and delays two seconds.
7711 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7714 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7715 ipr_cmd->job_step = ipr_reset_bist_done;
7716 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7718 return IPR_RC_JOB_RETURN;
7722 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7723 * @ipr_cmd: ipr command struct
7725 * Description: This asserts PCI reset to the adapter.
7730 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7733 struct pci_dev *pdev = ioa_cfg->pdev;
7736 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7737 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7738 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7740 return IPR_RC_JOB_RETURN;
7744 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7745 * @ipr_cmd: ipr command struct
7747 * Description: This attempts to block config access to the IOA.
7750 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7752 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7754 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7755 int rc = IPR_RC_JOB_CONTINUE;
7757 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7758 ioa_cfg->cfg_locked = 1;
7759 ipr_cmd->job_step = ioa_cfg->reset;
7761 if (ipr_cmd->u.time_left) {
7762 rc = IPR_RC_JOB_RETURN;
7763 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7764 ipr_reset_start_timer(ipr_cmd,
7765 IPR_CHECK_FOR_RESET_TIMEOUT);
7767 ipr_cmd->job_step = ioa_cfg->reset;
7768 dev_err(&ioa_cfg->pdev->dev,
7769 "Timed out waiting to lock config access. Resetting anyway.\n");
7777 * ipr_reset_block_config_access - Block config access to the IOA
7778 * @ipr_cmd: ipr command struct
7780 * Description: This attempts to block config access to the IOA
7783 * IPR_RC_JOB_CONTINUE
7785 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7787 ipr_cmd->ioa_cfg->cfg_locked = 0;
7788 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7789 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7790 return IPR_RC_JOB_CONTINUE;
7794 * ipr_reset_allowed - Query whether or not IOA can be reset
7795 * @ioa_cfg: ioa config struct
7798 * 0 if reset not allowed / non-zero if reset is allowed
7800 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7802 volatile u32 temp_reg;
7804 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7805 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7809 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7810 * @ipr_cmd: ipr command struct
7812 * Description: This function waits for adapter permission to run BIST,
7813 * then runs BIST. If the adapter does not give permission after a
7814 * reasonable time, we will reset the adapter anyway. The impact of
7815 * resetting the adapter without warning the adapter is the risk of
7816 * losing the persistent error log on the adapter. If the adapter is
7817 * reset while it is writing to the flash on the adapter, the flash
7818 * segment will have bad ECC and be zeroed.
7821 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7823 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7826 int rc = IPR_RC_JOB_RETURN;
7828 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7829 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7830 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7832 ipr_cmd->job_step = ipr_reset_block_config_access;
7833 rc = IPR_RC_JOB_CONTINUE;
7840 * ipr_reset_alert - Alert the adapter of a pending reset
7841 * @ipr_cmd: ipr command struct
7843 * Description: This function alerts the adapter that it will be reset.
7844 * If memory space is not currently enabled, proceed directly
7845 * to running BIST on the adapter. The timer must always be started
7846 * so we guarantee we do not run BIST from ipr_isr.
7851 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7858 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7860 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7861 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7862 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7863 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7865 ipr_cmd->job_step = ipr_reset_block_config_access;
7868 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7869 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7872 return IPR_RC_JOB_RETURN;
7876 * ipr_reset_ucode_download_done - Microcode download completion
7877 * @ipr_cmd: ipr command struct
7879 * Description: This function unmaps the microcode download buffer.
7882 * IPR_RC_JOB_CONTINUE
7884 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7886 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7887 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7889 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7890 sglist->num_sg, DMA_TO_DEVICE);
7892 ipr_cmd->job_step = ipr_reset_alert;
7893 return IPR_RC_JOB_CONTINUE;
7897 * ipr_reset_ucode_download - Download microcode to the adapter
7898 * @ipr_cmd: ipr command struct
7900 * Description: This function checks to see if it there is microcode
7901 * to download to the adapter. If there is, a download is performed.
7904 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7906 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7909 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7912 ipr_cmd->job_step = ipr_reset_alert;
7915 return IPR_RC_JOB_CONTINUE;
7917 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7918 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7919 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7920 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7921 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7922 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7923 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7926 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7928 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7929 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7931 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7932 IPR_WRITE_BUFFER_TIMEOUT);
7935 return IPR_RC_JOB_RETURN;
7939 * ipr_reset_shutdown_ioa - Shutdown the adapter
7940 * @ipr_cmd: ipr command struct
7942 * Description: This function issues an adapter shutdown of the
7943 * specified type to the specified adapter as part of the
7944 * adapter reset job.
7947 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7949 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7951 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7952 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7953 unsigned long timeout;
7954 int rc = IPR_RC_JOB_CONTINUE;
7957 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7958 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7959 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7960 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7961 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7963 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7964 timeout = IPR_SHUTDOWN_TIMEOUT;
7965 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7966 timeout = IPR_INTERNAL_TIMEOUT;
7967 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7968 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7970 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7972 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7974 rc = IPR_RC_JOB_RETURN;
7975 ipr_cmd->job_step = ipr_reset_ucode_download;
7977 ipr_cmd->job_step = ipr_reset_alert;
7984 * ipr_reset_ioa_job - Adapter reset job
7985 * @ipr_cmd: ipr command struct
7987 * Description: This function is the job router for the adapter reset job.
7992 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7995 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7998 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8000 if (ioa_cfg->reset_cmd != ipr_cmd) {
8002 * We are doing nested adapter resets and this is
8003 * not the current reset job.
8005 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8009 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8010 rc = ipr_cmd->job_step_failed(ipr_cmd);
8011 if (rc == IPR_RC_JOB_RETURN)
8015 ipr_reinit_ipr_cmnd(ipr_cmd);
8016 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8017 rc = ipr_cmd->job_step(ipr_cmd);
8018 } while(rc == IPR_RC_JOB_CONTINUE);
8022 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8023 * @ioa_cfg: ioa config struct
8024 * @job_step: first job step of reset job
8025 * @shutdown_type: shutdown type
8027 * Description: This function will initiate the reset of the given adapter
8028 * starting at the selected job step.
8029 * If the caller needs to wait on the completion of the reset,
8030 * the caller must sleep on the reset_wait_q.
8035 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8036 int (*job_step) (struct ipr_cmnd *),
8037 enum ipr_shutdown_type shutdown_type)
8039 struct ipr_cmnd *ipr_cmd;
8041 ioa_cfg->in_reset_reload = 1;
8042 ioa_cfg->allow_cmds = 0;
8043 scsi_block_requests(ioa_cfg->host);
8045 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8046 ioa_cfg->reset_cmd = ipr_cmd;
8047 ipr_cmd->job_step = job_step;
8048 ipr_cmd->u.shutdown_type = shutdown_type;
8050 ipr_reset_ioa_job(ipr_cmd);
8054 * ipr_initiate_ioa_reset - Initiate an adapter reset
8055 * @ioa_cfg: ioa config struct
8056 * @shutdown_type: shutdown type
8058 * Description: This function will initiate the reset of the given adapter.
8059 * If the caller needs to wait on the completion of the reset,
8060 * the caller must sleep on the reset_wait_q.
8065 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8066 enum ipr_shutdown_type shutdown_type)
8068 if (ioa_cfg->ioa_is_dead)
8071 if (ioa_cfg->in_reset_reload) {
8072 if (ioa_cfg->sdt_state == GET_DUMP)
8073 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8074 else if (ioa_cfg->sdt_state == READ_DUMP)
8075 ioa_cfg->sdt_state = ABORT_DUMP;
8078 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8079 dev_err(&ioa_cfg->pdev->dev,
8080 "IOA taken offline - error recovery failed\n");
8082 ioa_cfg->reset_retries = 0;
8083 ioa_cfg->ioa_is_dead = 1;
8085 if (ioa_cfg->in_ioa_bringdown) {
8086 ioa_cfg->reset_cmd = NULL;
8087 ioa_cfg->in_reset_reload = 0;
8088 ipr_fail_all_ops(ioa_cfg);
8089 wake_up_all(&ioa_cfg->reset_wait_q);
8091 spin_unlock_irq(ioa_cfg->host->host_lock);
8092 scsi_unblock_requests(ioa_cfg->host);
8093 spin_lock_irq(ioa_cfg->host->host_lock);
8096 ioa_cfg->in_ioa_bringdown = 1;
8097 shutdown_type = IPR_SHUTDOWN_NONE;
8101 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8106 * ipr_reset_freeze - Hold off all I/O activity
8107 * @ipr_cmd: ipr command struct
8109 * Description: If the PCI slot is frozen, hold off all I/O
8110 * activity; then, as soon as the slot is available again,
8111 * initiate an adapter reset.
8113 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8115 /* Disallow new interrupts, avoid loop */
8116 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8117 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8118 ipr_cmd->done = ipr_reset_ioa_job;
8119 return IPR_RC_JOB_RETURN;
8123 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8124 * @pdev: PCI device struct
8126 * Description: This routine is called to tell us that the PCI bus
8127 * is down. Can't do anything here, except put the device driver
8128 * into a holding pattern, waiting for the PCI bus to come back.
8130 static void ipr_pci_frozen(struct pci_dev *pdev)
8132 unsigned long flags = 0;
8133 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8135 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8136 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8141 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8142 * @pdev: PCI device struct
8144 * Description: This routine is called by the pci error recovery
8145 * code after the PCI slot has been reset, just before we
8146 * should resume normal operations.
8148 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8150 unsigned long flags = 0;
8151 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8153 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8154 if (ioa_cfg->needs_warm_reset)
8155 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8157 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8160 return PCI_ERS_RESULT_RECOVERED;
8164 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8165 * @pdev: PCI device struct
8167 * Description: This routine is called when the PCI bus has
8168 * permanently failed.
8170 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8172 unsigned long flags = 0;
8173 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8175 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8176 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8177 ioa_cfg->sdt_state = ABORT_DUMP;
8178 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8179 ioa_cfg->in_ioa_bringdown = 1;
8180 ioa_cfg->allow_cmds = 0;
8181 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8186 * ipr_pci_error_detected - Called when a PCI error is detected.
8187 * @pdev: PCI device struct
8188 * @state: PCI channel state
8190 * Description: Called when a PCI error is detected.
8193 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8195 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8196 pci_channel_state_t state)
8199 case pci_channel_io_frozen:
8200 ipr_pci_frozen(pdev);
8201 return PCI_ERS_RESULT_NEED_RESET;
8202 case pci_channel_io_perm_failure:
8203 ipr_pci_perm_failure(pdev);
8204 return PCI_ERS_RESULT_DISCONNECT;
8209 return PCI_ERS_RESULT_NEED_RESET;
8213 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8214 * @ioa_cfg: ioa cfg struct
8216 * Description: This is the second phase of adapter intialization
8217 * This function takes care of initilizing the adapter to the point
8218 * where it can accept new commands.
8221 * 0 on success / -EIO on failure
8223 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8226 unsigned long host_lock_flags = 0;
8229 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8230 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8231 if (ioa_cfg->needs_hard_reset) {
8232 ioa_cfg->needs_hard_reset = 0;
8233 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8235 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8239 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8240 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8242 if (ioa_cfg->ioa_is_dead) {
8244 } else if (ipr_invalid_adapter(ioa_cfg)) {
8248 dev_err(&ioa_cfg->pdev->dev,
8249 "Adapter not supported in this hardware configuration.\n");
8252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8259 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8260 * @ioa_cfg: ioa config struct
8265 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8269 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8270 if (ioa_cfg->ipr_cmnd_list[i])
8271 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8272 ioa_cfg->ipr_cmnd_list[i],
8273 ioa_cfg->ipr_cmnd_list_dma[i]);
8275 ioa_cfg->ipr_cmnd_list[i] = NULL;
8278 if (ioa_cfg->ipr_cmd_pool)
8279 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8281 ioa_cfg->ipr_cmd_pool = NULL;
8285 * ipr_free_mem - Frees memory allocated for an adapter
8286 * @ioa_cfg: ioa cfg struct
8291 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8295 kfree(ioa_cfg->res_entries);
8296 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8297 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8298 ipr_free_cmd_blks(ioa_cfg);
8299 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8300 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8301 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8302 ioa_cfg->u.cfg_table,
8303 ioa_cfg->cfg_table_dma);
8305 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8306 pci_free_consistent(ioa_cfg->pdev,
8307 sizeof(struct ipr_hostrcb),
8308 ioa_cfg->hostrcb[i],
8309 ioa_cfg->hostrcb_dma[i]);
8312 ipr_free_dump(ioa_cfg);
8313 kfree(ioa_cfg->trace);
8317 * ipr_free_all_resources - Free all allocated resources for an adapter.
8318 * @ipr_cmd: ipr command struct
8320 * This function frees all allocated resources for the
8321 * specified adapter.
8326 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8328 struct pci_dev *pdev = ioa_cfg->pdev;
8331 free_irq(pdev->irq, ioa_cfg);
8332 pci_disable_msi(pdev);
8333 iounmap(ioa_cfg->hdw_dma_regs);
8334 pci_release_regions(pdev);
8335 ipr_free_mem(ioa_cfg);
8336 scsi_host_put(ioa_cfg->host);
8337 pci_disable_device(pdev);
8342 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8343 * @ioa_cfg: ioa config struct
8346 * 0 on success / -ENOMEM on allocation failure
8348 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8350 struct ipr_cmnd *ipr_cmd;
8351 struct ipr_ioarcb *ioarcb;
8352 dma_addr_t dma_addr;
8355 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8356 sizeof(struct ipr_cmnd), 16, 0);
8358 if (!ioa_cfg->ipr_cmd_pool)
8361 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8362 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8365 ipr_free_cmd_blks(ioa_cfg);
8369 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8370 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8371 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8373 ioarcb = &ipr_cmd->ioarcb;
8374 ipr_cmd->dma_addr = dma_addr;
8376 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8378 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8380 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8381 if (ioa_cfg->sis64) {
8382 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8383 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8384 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8385 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8387 ioarcb->write_ioadl_addr =
8388 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8389 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8390 ioarcb->ioasa_host_pci_addr =
8391 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8393 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8394 ipr_cmd->cmd_index = i;
8395 ipr_cmd->ioa_cfg = ioa_cfg;
8396 ipr_cmd->sense_buffer_dma = dma_addr +
8397 offsetof(struct ipr_cmnd, sense_buffer);
8399 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8406 * ipr_alloc_mem - Allocate memory for an adapter
8407 * @ioa_cfg: ioa config struct
8410 * 0 on success / non-zero for error
8412 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8414 struct pci_dev *pdev = ioa_cfg->pdev;
8415 int i, rc = -ENOMEM;
8418 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8419 ioa_cfg->max_devs_supported, GFP_KERNEL);
8421 if (!ioa_cfg->res_entries)
8424 if (ioa_cfg->sis64) {
8425 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8426 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8427 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8428 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8429 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8430 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8433 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8434 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8435 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8438 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8439 sizeof(struct ipr_misc_cbs),
8440 &ioa_cfg->vpd_cbs_dma);
8442 if (!ioa_cfg->vpd_cbs)
8443 goto out_free_res_entries;
8445 if (ipr_alloc_cmd_blks(ioa_cfg))
8446 goto out_free_vpd_cbs;
8448 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8449 sizeof(u32) * IPR_NUM_CMD_BLKS,
8450 &ioa_cfg->host_rrq_dma);
8452 if (!ioa_cfg->host_rrq)
8453 goto out_ipr_free_cmd_blocks;
8455 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8456 ioa_cfg->cfg_table_size,
8457 &ioa_cfg->cfg_table_dma);
8459 if (!ioa_cfg->u.cfg_table)
8460 goto out_free_host_rrq;
8462 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8463 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8464 sizeof(struct ipr_hostrcb),
8465 &ioa_cfg->hostrcb_dma[i]);
8467 if (!ioa_cfg->hostrcb[i])
8468 goto out_free_hostrcb_dma;
8470 ioa_cfg->hostrcb[i]->hostrcb_dma =
8471 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8472 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8473 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8476 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8477 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8479 if (!ioa_cfg->trace)
8480 goto out_free_hostrcb_dma;
8487 out_free_hostrcb_dma:
8489 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8490 ioa_cfg->hostrcb[i],
8491 ioa_cfg->hostrcb_dma[i]);
8493 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8494 ioa_cfg->u.cfg_table,
8495 ioa_cfg->cfg_table_dma);
8497 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8498 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8499 out_ipr_free_cmd_blocks:
8500 ipr_free_cmd_blks(ioa_cfg);
8502 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8503 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8504 out_free_res_entries:
8505 kfree(ioa_cfg->res_entries);
8510 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8511 * @ioa_cfg: ioa config struct
8516 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8520 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8521 ioa_cfg->bus_attr[i].bus = i;
8522 ioa_cfg->bus_attr[i].qas_enabled = 0;
8523 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8524 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8525 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8527 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8532 * ipr_init_ioa_cfg - Initialize IOA config struct
8533 * @ioa_cfg: ioa config struct
8534 * @host: scsi host struct
8535 * @pdev: PCI dev struct
8540 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8541 struct Scsi_Host *host, struct pci_dev *pdev)
8543 const struct ipr_interrupt_offsets *p;
8544 struct ipr_interrupts *t;
8547 ioa_cfg->host = host;
8548 ioa_cfg->pdev = pdev;
8549 ioa_cfg->log_level = ipr_log_level;
8550 ioa_cfg->doorbell = IPR_DOORBELL;
8551 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8552 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8553 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8554 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8555 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8556 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8557 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8558 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8560 INIT_LIST_HEAD(&ioa_cfg->free_q);
8561 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8562 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8563 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8564 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8565 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8566 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8567 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8568 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8569 ioa_cfg->sdt_state = INACTIVE;
8571 ipr_initialize_bus_attr(ioa_cfg);
8572 ioa_cfg->max_devs_supported = ipr_max_devs;
8574 if (ioa_cfg->sis64) {
8575 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8576 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8577 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8578 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8580 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8581 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8582 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8583 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8585 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8586 host->unique_id = host->host_no;
8587 host->max_cmd_len = IPR_MAX_CDB_LEN;
8588 pci_set_drvdata(pdev, ioa_cfg);
8590 p = &ioa_cfg->chip_cfg->regs;
8592 base = ioa_cfg->hdw_dma_regs;
8594 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8595 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8596 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8597 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8598 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8599 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8600 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8601 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8602 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8603 t->ioarrin_reg = base + p->ioarrin_reg;
8604 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8605 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8606 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8607 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8608 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8609 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8611 if (ioa_cfg->sis64) {
8612 t->init_feedback_reg = base + p->init_feedback_reg;
8613 t->dump_addr_reg = base + p->dump_addr_reg;
8614 t->dump_data_reg = base + p->dump_data_reg;
8615 t->endian_swap_reg = base + p->endian_swap_reg;
8620 * ipr_get_chip_info - Find adapter chip information
8621 * @dev_id: PCI device id struct
8624 * ptr to chip information on success / NULL on failure
8626 static const struct ipr_chip_t * __devinit
8627 ipr_get_chip_info(const struct pci_device_id *dev_id)
8631 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8632 if (ipr_chip[i].vendor == dev_id->vendor &&
8633 ipr_chip[i].device == dev_id->device)
8634 return &ipr_chip[i];
8639 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8640 * @pdev: PCI device struct
8642 * Description: Simply set the msi_received flag to 1 indicating that
8643 * Message Signaled Interrupts are supported.
8646 * 0 on success / non-zero on failure
8648 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8650 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8651 unsigned long lock_flags = 0;
8652 irqreturn_t rc = IRQ_HANDLED;
8654 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8656 ioa_cfg->msi_received = 1;
8657 wake_up(&ioa_cfg->msi_wait_q);
8659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8664 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8665 * @pdev: PCI device struct
8667 * Description: The return value from pci_enable_msi() can not always be
8668 * trusted. This routine sets up and initiates a test interrupt to determine
8669 * if the interrupt is received via the ipr_test_intr() service routine.
8670 * If the tests fails, the driver will fall back to LSI.
8673 * 0 on success / non-zero on failure
8675 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8676 struct pci_dev *pdev)
8679 volatile u32 int_reg;
8680 unsigned long lock_flags = 0;
8684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8685 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8686 ioa_cfg->msi_received = 0;
8687 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8688 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8689 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8692 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8694 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8696 } else if (ipr_debug)
8697 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8699 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8700 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8701 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8702 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8705 if (!ioa_cfg->msi_received) {
8706 /* MSI test failed */
8707 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8709 } else if (ipr_debug)
8710 dev_info(&pdev->dev, "MSI test succeeded.\n");
8712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8714 free_irq(pdev->irq, ioa_cfg);
8722 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8723 * @pdev: PCI device struct
8724 * @dev_id: PCI device id struct
8727 * 0 on success / non-zero on failure
8729 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8730 const struct pci_device_id *dev_id)
8732 struct ipr_ioa_cfg *ioa_cfg;
8733 struct Scsi_Host *host;
8734 unsigned long ipr_regs_pci;
8735 void __iomem *ipr_regs;
8736 int rc = PCIBIOS_SUCCESSFUL;
8737 volatile u32 mask, uproc, interrupts;
8741 if ((rc = pci_enable_device(pdev))) {
8742 dev_err(&pdev->dev, "Cannot enable adapter\n");
8746 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8748 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8751 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8756 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8757 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8758 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8759 sata_port_info.flags, &ipr_sata_ops);
8761 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8763 if (!ioa_cfg->ipr_chip) {
8764 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8765 dev_id->vendor, dev_id->device);
8766 goto out_scsi_host_put;
8769 /* set SIS 32 or SIS 64 */
8770 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8771 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8772 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
8774 if (ipr_transop_timeout)
8775 ioa_cfg->transop_timeout = ipr_transop_timeout;
8776 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8777 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8779 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8781 ioa_cfg->revid = pdev->revision;
8783 ipr_regs_pci = pci_resource_start(pdev, 0);
8785 rc = pci_request_regions(pdev, IPR_NAME);
8788 "Couldn't register memory range of registers\n");
8789 goto out_scsi_host_put;
8792 ipr_regs = pci_ioremap_bar(pdev, 0);
8796 "Couldn't map memory range of registers\n");
8798 goto out_release_regions;
8801 ioa_cfg->hdw_dma_regs = ipr_regs;
8802 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8803 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8805 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8807 pci_set_master(pdev);
8809 if (ioa_cfg->sis64) {
8810 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8812 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8813 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8817 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8820 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8824 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8825 ioa_cfg->chip_cfg->cache_line_size);
8827 if (rc != PCIBIOS_SUCCESSFUL) {
8828 dev_err(&pdev->dev, "Write of cache line size failed\n");
8833 /* Enable MSI style interrupts if they are supported. */
8834 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8835 rc = ipr_test_msi(ioa_cfg, pdev);
8836 if (rc == -EOPNOTSUPP)
8837 pci_disable_msi(pdev);
8839 goto out_msi_disable;
8841 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8842 } else if (ipr_debug)
8843 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8845 /* Save away PCI config space for use following IOA reset */
8846 rc = pci_save_state(pdev);
8848 if (rc != PCIBIOS_SUCCESSFUL) {
8849 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8851 goto out_msi_disable;
8854 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8855 goto out_msi_disable;
8857 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8858 goto out_msi_disable;
8861 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8862 + ((sizeof(struct ipr_config_table_entry64)
8863 * ioa_cfg->max_devs_supported)));
8865 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8866 + ((sizeof(struct ipr_config_table_entry)
8867 * ioa_cfg->max_devs_supported)));
8869 rc = ipr_alloc_mem(ioa_cfg);
8872 "Couldn't allocate enough memory for device driver!\n");
8873 goto out_msi_disable;
8877 * If HRRQ updated interrupt is not masked, or reset alert is set,
8878 * the card is in an unknown state and needs a hard reset
8880 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8881 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8882 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8883 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8884 ioa_cfg->needs_hard_reset = 1;
8885 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
8886 ioa_cfg->needs_hard_reset = 1;
8887 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8888 ioa_cfg->ioa_unit_checked = 1;
8890 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8891 rc = request_irq(pdev->irq, ipr_isr,
8892 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8896 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8901 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8902 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8903 ioa_cfg->needs_warm_reset = 1;
8904 ioa_cfg->reset = ipr_reset_slot_reset;
8906 ioa_cfg->reset = ipr_reset_start_bist;
8908 spin_lock(&ipr_driver_lock);
8909 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8910 spin_unlock(&ipr_driver_lock);
8917 ipr_free_mem(ioa_cfg);
8919 pci_disable_msi(pdev);
8922 out_release_regions:
8923 pci_release_regions(pdev);
8925 scsi_host_put(host);
8927 pci_disable_device(pdev);
8932 * ipr_scan_vsets - Scans for VSET devices
8933 * @ioa_cfg: ioa config struct
8935 * Description: Since the VSET resources do not follow SAM in that we can have
8936 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8941 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8945 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8946 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8947 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8951 * ipr_initiate_ioa_bringdown - Bring down an adapter
8952 * @ioa_cfg: ioa config struct
8953 * @shutdown_type: shutdown type
8955 * Description: This function will initiate bringing down the adapter.
8956 * This consists of issuing an IOA shutdown to the adapter
8957 * to flush the cache, and running BIST.
8958 * If the caller needs to wait on the completion of the reset,
8959 * the caller must sleep on the reset_wait_q.
8964 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8965 enum ipr_shutdown_type shutdown_type)
8968 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8969 ioa_cfg->sdt_state = ABORT_DUMP;
8970 ioa_cfg->reset_retries = 0;
8971 ioa_cfg->in_ioa_bringdown = 1;
8972 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8977 * __ipr_remove - Remove a single adapter
8978 * @pdev: pci device struct
8980 * Adapter hot plug remove entry point.
8985 static void __ipr_remove(struct pci_dev *pdev)
8987 unsigned long host_lock_flags = 0;
8988 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8991 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8992 while(ioa_cfg->in_reset_reload) {
8993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8994 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8995 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8998 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9001 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9002 flush_work_sync(&ioa_cfg->work_q);
9003 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9005 spin_lock(&ipr_driver_lock);
9006 list_del(&ioa_cfg->queue);
9007 spin_unlock(&ipr_driver_lock);
9009 if (ioa_cfg->sdt_state == ABORT_DUMP)
9010 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9013 ipr_free_all_resources(ioa_cfg);
9019 * ipr_remove - IOA hot plug remove entry point
9020 * @pdev: pci device struct
9022 * Adapter hot plug remove entry point.
9027 static void __devexit ipr_remove(struct pci_dev *pdev)
9029 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9033 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
9035 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
9037 scsi_remove_host(ioa_cfg->host);
9045 * ipr_probe - Adapter hot plug add entry point
9048 * 0 on success / non-zero on failure
9050 static int __devinit ipr_probe(struct pci_dev *pdev,
9051 const struct pci_device_id *dev_id)
9053 struct ipr_ioa_cfg *ioa_cfg;
9056 rc = ipr_probe_ioa(pdev, dev_id);
9061 ioa_cfg = pci_get_drvdata(pdev);
9062 rc = ipr_probe_ioa_part2(ioa_cfg);
9069 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9076 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
9080 scsi_remove_host(ioa_cfg->host);
9085 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
9089 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
9091 scsi_remove_host(ioa_cfg->host);
9096 scsi_scan_host(ioa_cfg->host);
9097 ipr_scan_vsets(ioa_cfg);
9098 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9099 ioa_cfg->allow_ml_add_del = 1;
9100 ioa_cfg->host->max_channel = IPR_VSET_BUS;
9101 schedule_work(&ioa_cfg->work_q);
9106 * ipr_shutdown - Shutdown handler.
9107 * @pdev: pci device struct
9109 * This function is invoked upon system shutdown/reboot. It will issue
9110 * an adapter shutdown to the adapter to flush the write cache.
9115 static void ipr_shutdown(struct pci_dev *pdev)
9117 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9118 unsigned long lock_flags = 0;
9120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9121 while(ioa_cfg->in_reset_reload) {
9122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9123 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9124 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9127 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9128 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9129 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9132 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9133 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9134 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9135 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9136 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9137 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9138 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9139 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9140 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9141 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9142 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9143 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9144 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9145 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9146 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9147 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9148 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9149 IPR_USE_LONG_TRANSOP_TIMEOUT },
9150 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9151 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9152 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9153 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9154 IPR_USE_LONG_TRANSOP_TIMEOUT },
9155 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9156 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9157 IPR_USE_LONG_TRANSOP_TIMEOUT },
9158 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9159 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9160 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9161 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9162 IPR_USE_LONG_TRANSOP_TIMEOUT},
9163 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9164 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9165 IPR_USE_LONG_TRANSOP_TIMEOUT },
9166 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9167 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9168 IPR_USE_LONG_TRANSOP_TIMEOUT },
9169 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9170 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9171 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9172 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9173 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9174 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9175 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9176 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9177 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9178 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9179 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9181 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9182 IPR_USE_LONG_TRANSOP_TIMEOUT },
9183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9184 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9185 IPR_USE_LONG_TRANSOP_TIMEOUT },
9186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9187 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9189 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9191 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9193 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
9194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9195 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9197 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9199 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9200 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9201 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9202 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9203 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
9204 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9205 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9208 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9210 static struct pci_error_handlers ipr_err_handler = {
9211 .error_detected = ipr_pci_error_detected,
9212 .slot_reset = ipr_pci_slot_reset,
9215 static struct pci_driver ipr_driver = {
9217 .id_table = ipr_pci_table,
9219 .remove = __devexit_p(ipr_remove),
9220 .shutdown = ipr_shutdown,
9221 .err_handler = &ipr_err_handler,
9225 * ipr_halt_done - Shutdown prepare completion
9230 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9232 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9234 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9238 * ipr_halt - Issue shutdown prepare to all adapters
9241 * NOTIFY_OK on success / NOTIFY_DONE on failure
9243 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9245 struct ipr_cmnd *ipr_cmd;
9246 struct ipr_ioa_cfg *ioa_cfg;
9247 unsigned long flags = 0;
9249 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9252 spin_lock(&ipr_driver_lock);
9254 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9255 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9256 if (!ioa_cfg->allow_cmds) {
9257 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9261 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9262 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9263 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9264 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9265 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9267 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9268 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9270 spin_unlock(&ipr_driver_lock);
9275 static struct notifier_block ipr_notifier = {
9280 * ipr_init - Module entry point
9283 * 0 on success / negative value on failure
9285 static int __init ipr_init(void)
9287 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9288 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9290 register_reboot_notifier(&ipr_notifier);
9291 return pci_register_driver(&ipr_driver);
9295 * ipr_exit - Module unload
9297 * Module unload entry point.
9302 static void __exit ipr_exit(void)
9304 unregister_reboot_notifier(&ipr_notifier);
9305 pci_unregister_driver(&ipr_driver);
9308 module_init(ipr_init);
9309 module_exit(ipr_exit);