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/ioport.h>
64 #include <linux/delay.h>
65 #include <linux/pci.h>
66 #include <linux/wait.h>
67 #include <linux/spinlock.h>
68 #include <linux/sched.h>
69 #include <linux/interrupt.h>
70 #include <linux/blkdev.h>
71 #include <linux/firmware.h>
72 #include <linux/module.h>
73 #include <linux/moduleparam.h>
74 #include <linux/libata.h>
75 #include <linux/hdreg.h>
76 #include <linux/reboot.h>
77 #include <linux/stringify.h>
80 #include <asm/processor.h>
81 #include <scsi/scsi.h>
82 #include <scsi/scsi_host.h>
83 #include <scsi/scsi_tcq.h>
84 #include <scsi/scsi_eh.h>
85 #include <scsi/scsi_cmnd.h>
91 static LIST_HEAD(ipr_ioa_head);
92 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93 static unsigned int ipr_max_speed = 1;
94 static int ipr_testmode = 0;
95 static unsigned int ipr_fastfail = 0;
96 static unsigned int ipr_transop_timeout = 0;
97 static unsigned int ipr_debug = 0;
98 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
99 static unsigned int ipr_dual_ioa_raid = 1;
100 static DEFINE_SPINLOCK(ipr_driver_lock);
102 /* This table describes the differences between DMA controller chips */
103 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
106 .cache_line_size = 0x20,
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
110 .clr_interrupt_mask_reg32 = 0x00230,
111 .sense_interrupt_mask_reg = 0x0022C,
112 .sense_interrupt_mask_reg32 = 0x0022C,
113 .clr_interrupt_reg = 0x00228,
114 .clr_interrupt_reg32 = 0x00228,
115 .sense_interrupt_reg = 0x00224,
116 .sense_interrupt_reg32 = 0x00224,
117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
119 .sense_uproc_interrupt_reg32 = 0x00214,
120 .set_uproc_interrupt_reg = 0x00214,
121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
126 { /* Snipe and Scamp */
128 .cache_line_size = 0x20,
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
132 .clr_interrupt_mask_reg32 = 0x0028C,
133 .sense_interrupt_mask_reg = 0x00288,
134 .sense_interrupt_mask_reg32 = 0x00288,
135 .clr_interrupt_reg = 0x00284,
136 .clr_interrupt_reg32 = 0x00284,
137 .sense_interrupt_reg = 0x00280,
138 .sense_interrupt_reg32 = 0x00280,
139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
141 .sense_uproc_interrupt_reg32 = 0x00290,
142 .set_uproc_interrupt_reg = 0x00290,
143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
150 .cache_line_size = 0x20,
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
154 .clr_interrupt_mask_reg32 = 0x0001C,
155 .sense_interrupt_mask_reg = 0x00010,
156 .sense_interrupt_mask_reg32 = 0x00014,
157 .clr_interrupt_reg = 0x00008,
158 .clr_interrupt_reg32 = 0x0000C,
159 .sense_interrupt_reg = 0x00000,
160 .sense_interrupt_reg32 = 0x00004,
161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
163 .sense_uproc_interrupt_reg32 = 0x00024,
164 .set_uproc_interrupt_reg = 0x00020,
165 .set_uproc_interrupt_reg32 = 0x00024,
166 .clr_uproc_interrupt_reg = 0x00028,
167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
169 .dump_addr_reg = 0x00064,
170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
176 static const struct ipr_chip_t ipr_chip[] = {
177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
188 static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
192 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194 module_param_named(max_speed, ipr_max_speed, uint, 0);
195 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196 module_param_named(log_level, ipr_log_level, uint, 0);
197 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198 module_param_named(testmode, ipr_testmode, int, 0);
199 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
200 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
201 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
204 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
205 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
206 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
208 module_param_named(max_devs, ipr_max_devs, int, 0);
209 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
211 MODULE_LICENSE("GPL");
212 MODULE_VERSION(IPR_DRIVER_VERSION);
214 /* A constant array of IOASCs/URCs/Error Messages */
216 struct ipr_error_table_t ipr_error_table[] = {
217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
218 "8155: An unknown error was received"},
220 "Soft underlength error"},
222 "Command to be cancelled not found"},
224 "Qualified success"},
225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
226 "FFFE: Soft device bus error recovered by the IOA"},
227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
228 "4101: Soft device bus fabric error"},
229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
244 "FFF9: Device sector reassign successful"},
245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFF7: Media error recovered by device rewrite procedures"},
247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
248 "7001: IOA sector reassignment successful"},
249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
250 "FFF9: Soft media error. Sector reassignment recommended"},
251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FFF7: Media error recovered by IOA rewrite procedures"},
253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FF3D: Soft PCI bus error recovered by the IOA"},
255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
256 "FFF6: Device hardware error recovered by the IOA"},
257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFF6: Device hardware error recovered by the device"},
259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FF3D: Soft IOA error recovered by the IOA"},
261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFFA: Undefined device response recovered by the IOA"},
263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
264 "FFF6: Device bus error, message or command phase"},
265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFFE: Task Management Function failed"},
267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF6: Failure prediction threshold exceeded"},
269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
270 "8009: Impending cache battery pack failure"},
272 "34FF: Disk device format in progress"},
273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
276 "Synchronization required"},
278 "No ready, IOA shutdown"},
280 "Not ready, IOA has been shutdown"},
281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
282 "3020: Storage subsystem configuration error"},
284 "FFF5: Medium error, data unreadable, recommend reassign"},
286 "7000: Medium error, data unreadable, do not reassign"},
287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
288 "FFF3: Disk media format bad"},
289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
290 "3002: Addressed device failed to respond to selection"},
291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
292 "3100: Device bus error"},
293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
294 "3109: IOA timed out a device command"},
296 "3120: SCSI bus is not operational"},
297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
298 "4100: Hard device bus fabric error"},
299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "9000: IOA reserved area data check"},
315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
316 "9001: IOA reserved area invalid data pattern"},
317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
318 "9002: IOA reserved area LRC error"},
319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
322 "102E: Out of alternate sectors for disk storage"},
323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
324 "FFF4: Data transfer underlength error"},
325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
326 "FFF4: Data transfer overlength error"},
327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
328 "3400: Logical unit failure"},
329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
330 "FFF4: Device microcode is corrupt"},
331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: PCI bus error"},
334 "Unsupported device bus message received"},
335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
336 "FFF4: Disk device problem"},
337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
338 "8150: Permanent IOA failure"},
339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
340 "3010: Disk device returned wrong response to IOA"},
341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
342 "8151: IOA microcode error"},
344 "Device bus status error"},
345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
346 "8157: IOA error requiring IOA reset to recover"},
348 "ATA device status error"},
350 "Message reject received from the device"},
351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
352 "8008: A permanent cache battery pack failure occurred"},
353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
354 "9090: Disk unit has been modified after the last known status"},
355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
356 "9081: IOA detected device error"},
357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
358 "9082: IOA detected device error"},
359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
360 "3110: Device bus error, message or command phase"},
361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "3110: SAS Command / Task Management Function failed"},
363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
364 "9091: Incorrect hardware configuration change has been detected"},
365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
366 "9073: Invalid multi-adapter configuration"},
367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
368 "4010: Incorrect connection between cascaded expanders"},
369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
370 "4020: Connections exceed IOA design limits"},
371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
372 "4030: Incorrect multipath connection"},
373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4110: Unsupported enclosure function"},
375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
376 "FFF4: Command to logical unit failed"},
378 "Illegal request, invalid request type or request packet"},
380 "Illegal request, invalid resource handle"},
382 "Illegal request, commands not allowed to this device"},
384 "Illegal request, command not allowed to a secondary adapter"},
386 "Illegal request, command not allowed to a non-optimized resource"},
388 "Illegal request, invalid field in parameter list"},
390 "Illegal request, parameter not supported"},
392 "Illegal request, parameter value invalid"},
394 "Illegal request, command sequence error"},
396 "Illegal request, dual adapter support not enabled"},
397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
398 "9031: Array protection temporarily suspended, protection resuming"},
399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
400 "9040: Array protection temporarily suspended, protection resuming"},
401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
402 "3140: Device bus not ready to ready transition"},
403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFFB: SCSI bus was reset"},
406 "FFFE: SCSI bus transition to single ended"},
408 "FFFE: SCSI bus transition to LVD"},
409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
410 "FFFB: SCSI bus was reset by another initiator"},
411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
412 "3029: A device replacement has occurred"},
413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
414 "9051: IOA cache data exists for a missing or failed device"},
415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
418 "9025: Disk unit is not supported at its physical location"},
419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
420 "3020: IOA detected a SCSI bus configuration error"},
421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
422 "3150: SCSI bus configuration error"},
423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
424 "9074: Asymmetric advanced function disk configuration"},
425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
426 "4040: Incomplete multipath connection between IOA and enclosure"},
427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
428 "4041: Incomplete multipath connection between enclosure and device"},
429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9075: Incomplete multipath connection between IOA and remote IOA"},
431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9076: Configuration error, missing remote IOA"},
433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4050: Enclosure does not support a required multipath function"},
435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
438 "9041: Array protection temporarily suspended"},
439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
440 "9042: Corrupt array parity detected on specified device"},
441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
442 "9030: Array no longer protected due to missing or failed disk unit"},
443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
444 "9071: Link operational transition"},
445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
446 "9072: Link not operational transition"},
447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
448 "9032: Array exposed but still protected"},
449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
452 "4061: Multipath redundancy level got better"},
453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
454 "4060: Multipath redundancy level got worse"},
456 "Failure due to other device"},
457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
458 "9008: IOA does not support functions expected by devices"},
459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
460 "9010: Cache data associated with attached devices cannot be found"},
461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9011: Cache data belongs to devices other than those attached"},
463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
464 "9020: Array missing 2 or more devices with only 1 device present"},
465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
466 "9021: Array missing 2 or more devices with 2 or more devices present"},
467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9022: Exposed array is missing a required device"},
469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9023: Array member(s) not at required physical locations"},
471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
472 "9024: Array not functional due to present hardware configuration"},
473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
474 "9026: Array not functional due to present hardware configuration"},
475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
476 "9027: Array is missing a device and parity is out of sync"},
477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "9028: Maximum number of arrays already exist"},
479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "9050: Required cache data cannot be located for a disk unit"},
481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
482 "9052: Cache data exists for a device that has been modified"},
483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9054: IOA resources not available due to previous problems"},
485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9092: Disk unit requires initialization before use"},
487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9029: Incorrect hardware configuration change has been detected"},
489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9060: One or more disk pairs are missing from an array"},
491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9061: One or more disks are missing from an array"},
493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9062: One or more disks are missing from an array"},
495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
496 "9063: Maximum number of functional arrays has been exceeded"},
498 "Aborted command, invalid descriptor"},
500 "Command terminated by host"}
503 static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
520 * Function Prototypes
522 static int ipr_reset_alert(struct ipr_cmnd *);
523 static void ipr_process_ccn(struct ipr_cmnd *);
524 static void ipr_process_error(struct ipr_cmnd *);
525 static void ipr_reset_ioa_job(struct ipr_cmnd *);
526 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
529 #ifdef CONFIG_SCSI_IPR_TRACE
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
534 * @add_data: additional data
539 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
558 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
568 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
576 ioarcb->data_transfer_length = 0;
577 ioarcb->read_data_transfer_length = 0;
578 ioarcb->ioadl_len = 0;
579 ioarcb->read_ioadl_len = 0;
581 if (ipr_cmd->ioa_cfg->sis64) {
582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
584 ioasa64->u.gata.status = 0;
586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
589 ioasa->u.gata.status = 0;
592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
594 ipr_cmd->scsi_cmd = NULL;
596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
607 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
620 * pointer to ipr command struct
623 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
625 struct ipr_cmnd *ipr_cmd;
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
645 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
648 volatile u32 int_reg;
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
653 /* Set interrupt mask to stop all new interrupts */
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
659 /* Clear any pending interrupts */
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
671 * 0 on success / -EIO on failure
673 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
677 if (pcix_cmd_reg == 0)
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
695 * 0 on success / -EIO on failure
697 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
722 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
744 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
749 scsi_cmd->result |= (DID_ERROR << 16);
751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
760 * This function fails all outstanding ops.
765 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
767 struct ipr_cmnd *ipr_cmd, *temp;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
800 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
831 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
839 ipr_cmd->done = done;
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
845 add_timer(&ipr_cmd->timer);
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
851 ipr_send_command(ipr_cmd);
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
864 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
869 complete(&ipr_cmd->completion);
873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
879 * This function initializes an ioadl in the case where there is only a single
885 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
891 ipr_cmd->dma_use_sg = 1;
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
926 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
944 * @hostrcb: hostrcb struct
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
953 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
980 ipr_cmd->done = ipr_process_error;
982 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;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2733 return bytes_copied;
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2767 return bytes_copied;
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2777 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2793 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2819 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2840 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2861 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2871 driver_dump->hdr.num_entries++;
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2882 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2903 if (ioa_cfg->sis64) {
2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2905 ssleep(IPR_DUMP_DELAY_SECONDS);
2906 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2909 start_addr = readl(ioa_cfg->ioa_mailbox);
2911 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2912 dev_err(&ioa_cfg->pdev->dev,
2913 "Invalid dump table format: %lx\n", start_addr);
2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2918 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2920 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2922 /* Initialize the overall dump header */
2923 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2924 driver_dump->hdr.num_entries = 1;
2925 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2926 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2927 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2928 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2930 ipr_dump_version_data(ioa_cfg, driver_dump);
2931 ipr_dump_location_data(ioa_cfg, driver_dump);
2932 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2933 ipr_dump_trace_data(ioa_cfg, driver_dump);
2935 /* Update dump_header */
2936 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2938 /* IOA Dump entry */
2939 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2940 ioa_dump->hdr.len = 0;
2941 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2942 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2944 /* First entries in sdt are actually a list of dump addresses and
2945 lengths to gather the real dump data. sdt represents the pointer
2946 to the ioa generated dump table. Dump data will be extracted based
2947 on entries in this table */
2948 sdt = &ioa_dump->sdt;
2950 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2951 sizeof(struct ipr_sdt) / sizeof(__be32));
2953 /* Smart Dump table is ready to use and the first entry is valid */
2954 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2955 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2956 dev_err(&ioa_cfg->pdev->dev,
2957 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2958 rc, be32_to_cpu(sdt->hdr.state));
2959 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2960 ioa_cfg->sdt_state = DUMP_OBTAINED;
2961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2965 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2967 if (num_entries > IPR_NUM_SDT_ENTRIES)
2968 num_entries = IPR_NUM_SDT_ENTRIES;
2970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2972 for (i = 0; i < num_entries; i++) {
2973 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2974 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2978 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2979 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2981 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2983 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2984 end_off = be32_to_cpu(sdt->entry[i].end_token);
2986 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2987 bytes_to_copy = end_off - start_off;
2992 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2993 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2997 /* Copy data from adapter to driver buffers */
2998 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3001 ioa_dump->hdr.len += bytes_copied;
3003 if (bytes_copied != bytes_to_copy) {
3004 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3011 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3013 /* Update dump_header */
3014 driver_dump->hdr.len += ioa_dump->hdr.len;
3016 ioa_cfg->sdt_state = DUMP_OBTAINED;
3021 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3025 * ipr_release_dump - Free adapter dump memory
3026 * @kref: kref struct
3031 static void ipr_release_dump(struct kref *kref)
3033 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3034 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3035 unsigned long lock_flags = 0;
3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3040 ioa_cfg->dump = NULL;
3041 ioa_cfg->sdt_state = INACTIVE;
3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3044 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3045 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3052 * ipr_worker_thread - Worker thread
3053 * @work: ioa config struct
3055 * Called at task level from a work thread. This function takes care
3056 * of adding and removing device from the mid-layer as configuration
3057 * changes are detected by the adapter.
3062 static void ipr_worker_thread(struct work_struct *work)
3064 unsigned long lock_flags;
3065 struct ipr_resource_entry *res;
3066 struct scsi_device *sdev;
3067 struct ipr_dump *dump;
3068 struct ipr_ioa_cfg *ioa_cfg =
3069 container_of(work, struct ipr_ioa_cfg, work_q);
3070 u8 bus, target, lun;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state == GET_DUMP) {
3077 dump = ioa_cfg->dump;
3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3082 kref_get(&dump->kref);
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3084 ipr_get_ioa_dump(ioa_cfg, dump);
3085 kref_put(&dump->kref, ipr_release_dump);
3087 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3088 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3089 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3097 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3103 if (res->del_from_ml && res->sdev) {
3106 if (!scsi_device_get(sdev)) {
3107 if (!res->add_to_ml)
3108 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3110 res->del_from_ml = 0;
3111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3112 scsi_remove_device(sdev);
3113 scsi_device_put(sdev);
3114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3121 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3122 if (res->add_to_ml) {
3124 target = res->target;
3127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3128 scsi_add_device(ioa_cfg->host, bus, target, lun);
3129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3135 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3139 #ifdef CONFIG_SCSI_IPR_TRACE
3141 * ipr_read_trace - Dump the adapter trace
3142 * @filp: open sysfs file
3143 * @kobj: kobject struct
3144 * @bin_attr: bin_attribute struct
3147 * @count: buffer size
3150 * number of bytes printed to buffer
3152 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3153 struct bin_attribute *bin_attr,
3154 char *buf, loff_t off, size_t count)
3156 struct device *dev = container_of(kobj, struct device, kobj);
3157 struct Scsi_Host *shost = class_to_shost(dev);
3158 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3159 unsigned long lock_flags = 0;
3162 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3163 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3170 static struct bin_attribute ipr_trace_attr = {
3176 .read = ipr_read_trace,
3181 * ipr_show_fw_version - Show the firmware version
3182 * @dev: class device struct
3186 * number of bytes printed to buffer
3188 static ssize_t ipr_show_fw_version(struct device *dev,
3189 struct device_attribute *attr, char *buf)
3191 struct Scsi_Host *shost = class_to_shost(dev);
3192 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3193 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3194 unsigned long lock_flags = 0;
3197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3198 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3199 ucode_vpd->major_release, ucode_vpd->card_type,
3200 ucode_vpd->minor_release[0],
3201 ucode_vpd->minor_release[1]);
3202 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3206 static struct device_attribute ipr_fw_version_attr = {
3208 .name = "fw_version",
3211 .show = ipr_show_fw_version,
3215 * ipr_show_log_level - Show the adapter's error logging level
3216 * @dev: class device struct
3220 * number of bytes printed to buffer
3222 static ssize_t ipr_show_log_level(struct device *dev,
3223 struct device_attribute *attr, char *buf)
3225 struct Scsi_Host *shost = class_to_shost(dev);
3226 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3227 unsigned long lock_flags = 0;
3230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3231 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3232 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3237 * ipr_store_log_level - Change the adapter's error logging level
3238 * @dev: class device struct
3242 * number of bytes printed to buffer
3244 static ssize_t ipr_store_log_level(struct device *dev,
3245 struct device_attribute *attr,
3246 const char *buf, size_t count)
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;
3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3253 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3258 static struct device_attribute ipr_log_level_attr = {
3260 .name = "log_level",
3261 .mode = S_IRUGO | S_IWUSR,
3263 .show = ipr_show_log_level,
3264 .store = ipr_store_log_level
3268 * ipr_store_diagnostics - IOA Diagnostics interface
3269 * @dev: device struct
3271 * @count: buffer size
3273 * This function will reset the adapter and wait a reasonable
3274 * amount of time for any errors that the adapter might log.
3277 * count on success / other on failure
3279 static ssize_t ipr_store_diagnostics(struct device *dev,
3280 struct device_attribute *attr,
3281 const char *buf, size_t count)
3283 struct Scsi_Host *shost = class_to_shost(dev);
3284 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3285 unsigned long lock_flags = 0;
3288 if (!capable(CAP_SYS_ADMIN))
3291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3292 while(ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3298 ioa_cfg->errors_logged = 0;
3299 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3301 if (ioa_cfg->in_reset_reload) {
3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3305 /* Wait for a second for any errors to be logged */
3308 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3312 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3313 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3315 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3320 static struct device_attribute ipr_diagnostics_attr = {
3322 .name = "run_diagnostics",
3325 .store = ipr_store_diagnostics
3329 * ipr_show_adapter_state - Show the adapter's state
3330 * @class_dev: device struct
3334 * number of bytes printed to buffer
3336 static ssize_t ipr_show_adapter_state(struct device *dev,
3337 struct device_attribute *attr, char *buf)
3339 struct Scsi_Host *shost = class_to_shost(dev);
3340 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3341 unsigned long lock_flags = 0;
3344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3345 if (ioa_cfg->ioa_is_dead)
3346 len = snprintf(buf, PAGE_SIZE, "offline\n");
3348 len = snprintf(buf, PAGE_SIZE, "online\n");
3349 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3354 * ipr_store_adapter_state - Change adapter state
3355 * @dev: device struct
3357 * @count: buffer size
3359 * This function will change the adapter's state.
3362 * count on success / other on failure
3364 static ssize_t ipr_store_adapter_state(struct device *dev,
3365 struct device_attribute *attr,
3366 const char *buf, size_t count)
3368 struct Scsi_Host *shost = class_to_shost(dev);
3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3370 unsigned long lock_flags;
3373 if (!capable(CAP_SYS_ADMIN))
3376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3377 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3378 ioa_cfg->ioa_is_dead = 0;
3379 ioa_cfg->reset_retries = 0;
3380 ioa_cfg->in_ioa_bringdown = 0;
3381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3384 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3389 static struct device_attribute ipr_ioa_state_attr = {
3391 .name = "online_state",
3392 .mode = S_IRUGO | S_IWUSR,
3394 .show = ipr_show_adapter_state,
3395 .store = ipr_store_adapter_state
3399 * ipr_store_reset_adapter - Reset the adapter
3400 * @dev: device struct
3402 * @count: buffer size
3404 * This function will reset the adapter.
3407 * count on success / other on failure
3409 static ssize_t ipr_store_reset_adapter(struct device *dev,
3410 struct device_attribute *attr,
3411 const char *buf, size_t count)
3413 struct Scsi_Host *shost = class_to_shost(dev);
3414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3415 unsigned long lock_flags;
3418 if (!capable(CAP_SYS_ADMIN))
3421 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3422 if (!ioa_cfg->in_reset_reload)
3423 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3430 static struct device_attribute ipr_ioa_reset_attr = {
3432 .name = "reset_host",
3435 .store = ipr_store_reset_adapter
3439 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3440 * @buf_len: buffer length
3442 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3443 * list to use for microcode download
3446 * pointer to sglist / NULL on failure
3448 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3450 int sg_size, order, bsize_elem, num_elem, i, j;
3451 struct ipr_sglist *sglist;
3452 struct scatterlist *scatterlist;
3455 /* Get the minimum size per scatter/gather element */
3456 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3458 /* Get the actual size per element */
3459 order = get_order(sg_size);
3461 /* Determine the actual number of bytes per element */
3462 bsize_elem = PAGE_SIZE * (1 << order);
3464 /* Determine the actual number of sg entries needed */
3465 if (buf_len % bsize_elem)
3466 num_elem = (buf_len / bsize_elem) + 1;
3468 num_elem = buf_len / bsize_elem;
3470 /* Allocate a scatter/gather list for the DMA */
3471 sglist = kzalloc(sizeof(struct ipr_sglist) +
3472 (sizeof(struct scatterlist) * (num_elem - 1)),
3475 if (sglist == NULL) {
3480 scatterlist = sglist->scatterlist;
3481 sg_init_table(scatterlist, num_elem);
3483 sglist->order = order;
3484 sglist->num_sg = num_elem;
3486 /* Allocate a bunch of sg elements */
3487 for (i = 0; i < num_elem; i++) {
3488 page = alloc_pages(GFP_KERNEL, order);
3492 /* Free up what we already allocated */
3493 for (j = i - 1; j >= 0; j--)
3494 __free_pages(sg_page(&scatterlist[j]), order);
3499 sg_set_page(&scatterlist[i], page, 0, 0);
3506 * ipr_free_ucode_buffer - Frees a microcode download buffer
3507 * @p_dnld: scatter/gather list pointer
3509 * Free a DMA'able ucode download buffer previously allocated with
3510 * ipr_alloc_ucode_buffer
3515 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3519 for (i = 0; i < sglist->num_sg; i++)
3520 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3526 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3527 * @sglist: scatter/gather list pointer
3528 * @buffer: buffer pointer
3529 * @len: buffer length
3531 * Copy a microcode image from a user buffer into a buffer allocated by
3532 * ipr_alloc_ucode_buffer
3535 * 0 on success / other on failure
3537 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3538 u8 *buffer, u32 len)
3540 int bsize_elem, i, result = 0;
3541 struct scatterlist *scatterlist;
3544 /* Determine the actual number of bytes per element */
3545 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3547 scatterlist = sglist->scatterlist;
3549 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3550 struct page *page = sg_page(&scatterlist[i]);
3553 memcpy(kaddr, buffer, bsize_elem);
3556 scatterlist[i].length = bsize_elem;
3564 if (len % bsize_elem) {
3565 struct page *page = sg_page(&scatterlist[i]);
3568 memcpy(kaddr, buffer, len % bsize_elem);
3571 scatterlist[i].length = len % bsize_elem;
3574 sglist->buffer_len = len;
3579 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3580 * @ipr_cmd: ipr command struct
3581 * @sglist: scatter/gather list
3583 * Builds a microcode download IOA data list (IOADL).
3586 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3587 struct ipr_sglist *sglist)
3589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3590 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3591 struct scatterlist *scatterlist = sglist->scatterlist;
3594 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3595 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3596 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3599 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3600 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3601 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3602 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3603 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3606 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3610 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3611 * @ipr_cmd: ipr command struct
3612 * @sglist: scatter/gather list
3614 * Builds a microcode download IOA data list (IOADL).
3617 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3618 struct ipr_sglist *sglist)
3620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3621 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3622 struct scatterlist *scatterlist = sglist->scatterlist;
3625 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3627 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3630 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3632 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3633 ioadl[i].flags_and_data_len =
3634 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3636 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3639 ioadl[i-1].flags_and_data_len |=
3640 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3644 * ipr_update_ioa_ucode - Update IOA's microcode
3645 * @ioa_cfg: ioa config struct
3646 * @sglist: scatter/gather list
3648 * Initiate an adapter reset to update the IOA's microcode
3651 * 0 on success / -EIO on failure
3653 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3654 struct ipr_sglist *sglist)
3656 unsigned long lock_flags;
3658 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3659 while(ioa_cfg->in_reset_reload) {
3660 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3661 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3665 if (ioa_cfg->ucode_sglist) {
3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3667 dev_err(&ioa_cfg->pdev->dev,
3668 "Microcode download already in progress\n");
3672 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3673 sglist->num_sg, DMA_TO_DEVICE);
3675 if (!sglist->num_dma_sg) {
3676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3677 dev_err(&ioa_cfg->pdev->dev,
3678 "Failed to map microcode download buffer!\n");
3682 ioa_cfg->ucode_sglist = sglist;
3683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3687 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3688 ioa_cfg->ucode_sglist = NULL;
3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3694 * ipr_store_update_fw - Update the firmware on the adapter
3695 * @class_dev: device struct
3697 * @count: buffer size
3699 * This function will update the firmware on the adapter.
3702 * count on success / other on failure
3704 static ssize_t ipr_store_update_fw(struct device *dev,
3705 struct device_attribute *attr,
3706 const char *buf, size_t count)
3708 struct Scsi_Host *shost = class_to_shost(dev);
3709 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3710 struct ipr_ucode_image_header *image_hdr;
3711 const struct firmware *fw_entry;
3712 struct ipr_sglist *sglist;
3715 int len, result, dnld_size;
3717 if (!capable(CAP_SYS_ADMIN))
3720 len = snprintf(fname, 99, "%s", buf);
3721 fname[len-1] = '\0';
3723 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3728 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3730 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3731 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3732 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3733 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3734 release_firmware(fw_entry);
3738 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3739 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3740 sglist = ipr_alloc_ucode_buffer(dnld_size);
3743 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3744 release_firmware(fw_entry);
3748 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3751 dev_err(&ioa_cfg->pdev->dev,
3752 "Microcode buffer copy to DMA buffer failed\n");
3756 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3761 ipr_free_ucode_buffer(sglist);
3762 release_firmware(fw_entry);
3766 static struct device_attribute ipr_update_fw_attr = {
3768 .name = "update_fw",
3771 .store = ipr_store_update_fw
3775 * ipr_show_fw_type - Show the adapter's firmware type.
3776 * @dev: class device struct
3780 * number of bytes printed to buffer
3782 static ssize_t ipr_show_fw_type(struct device *dev,
3783 struct device_attribute *attr, char *buf)
3785 struct Scsi_Host *shost = class_to_shost(dev);
3786 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3787 unsigned long lock_flags = 0;
3790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3791 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3792 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3796 static struct device_attribute ipr_ioa_fw_type_attr = {
3801 .show = ipr_show_fw_type
3804 static struct device_attribute *ipr_ioa_attrs[] = {
3805 &ipr_fw_version_attr,
3806 &ipr_log_level_attr,
3807 &ipr_diagnostics_attr,
3808 &ipr_ioa_state_attr,
3809 &ipr_ioa_reset_attr,
3810 &ipr_update_fw_attr,
3811 &ipr_ioa_fw_type_attr,
3815 #ifdef CONFIG_SCSI_IPR_DUMP
3817 * ipr_read_dump - Dump the adapter
3818 * @filp: open sysfs file
3819 * @kobj: kobject struct
3820 * @bin_attr: bin_attribute struct
3823 * @count: buffer size
3826 * number of bytes printed to buffer
3828 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3829 struct bin_attribute *bin_attr,
3830 char *buf, loff_t off, size_t count)
3832 struct device *cdev = container_of(kobj, struct device, kobj);
3833 struct Scsi_Host *shost = class_to_shost(cdev);
3834 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3835 struct ipr_dump *dump;
3836 unsigned long lock_flags = 0;
3841 if (!capable(CAP_SYS_ADMIN))
3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3845 dump = ioa_cfg->dump;
3847 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3848 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3851 kref_get(&dump->kref);
3852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3854 if (off > dump->driver_dump.hdr.len) {
3855 kref_put(&dump->kref, ipr_release_dump);
3859 if (off + count > dump->driver_dump.hdr.len) {
3860 count = dump->driver_dump.hdr.len - off;
3864 if (count && off < sizeof(dump->driver_dump)) {
3865 if (off + count > sizeof(dump->driver_dump))
3866 len = sizeof(dump->driver_dump) - off;
3869 src = (u8 *)&dump->driver_dump + off;
3870 memcpy(buf, src, len);
3876 off -= sizeof(dump->driver_dump);
3878 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3879 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3880 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3883 src = (u8 *)&dump->ioa_dump + off;
3884 memcpy(buf, src, len);
3890 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3893 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3894 len = PAGE_ALIGN(off) - off;
3897 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3898 src += off & ~PAGE_MASK;
3899 memcpy(buf, src, len);
3905 kref_put(&dump->kref, ipr_release_dump);
3910 * ipr_alloc_dump - Prepare for adapter dump
3911 * @ioa_cfg: ioa config struct
3914 * 0 on success / other on failure
3916 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3918 struct ipr_dump *dump;
3919 unsigned long lock_flags = 0;
3921 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3924 ipr_err("Dump memory allocation failed\n");
3928 kref_init(&dump->kref);
3929 dump->ioa_cfg = ioa_cfg;
3931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3933 if (INACTIVE != ioa_cfg->sdt_state) {
3934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3939 ioa_cfg->dump = dump;
3940 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3941 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3942 ioa_cfg->dump_taken = 1;
3943 schedule_work(&ioa_cfg->work_q);
3945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 * ipr_free_dump - Free adapter dump memory
3952 * @ioa_cfg: ioa config struct
3955 * 0 on success / other on failure
3957 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3959 struct ipr_dump *dump;
3960 unsigned long lock_flags = 0;
3964 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3965 dump = ioa_cfg->dump;
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3971 ioa_cfg->dump = NULL;
3972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3974 kref_put(&dump->kref, ipr_release_dump);
3981 * ipr_write_dump - Setup dump state of adapter
3982 * @filp: open sysfs file
3983 * @kobj: kobject struct
3984 * @bin_attr: bin_attribute struct
3987 * @count: buffer size
3990 * number of bytes printed to buffer
3992 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3993 struct bin_attribute *bin_attr,
3994 char *buf, loff_t off, size_t count)
3996 struct device *cdev = container_of(kobj, struct device, kobj);
3997 struct Scsi_Host *shost = class_to_shost(cdev);
3998 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 if (!capable(CAP_SYS_ADMIN))
4005 rc = ipr_alloc_dump(ioa_cfg);
4006 else if (buf[0] == '0')
4007 rc = ipr_free_dump(ioa_cfg);
4017 static struct bin_attribute ipr_dump_attr = {
4020 .mode = S_IRUSR | S_IWUSR,
4023 .read = ipr_read_dump,
4024 .write = ipr_write_dump
4027 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4031 * ipr_change_queue_depth - Change the device's queue depth
4032 * @sdev: scsi device struct
4033 * @qdepth: depth to set
4034 * @reason: calling context
4039 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4042 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4043 struct ipr_resource_entry *res;
4044 unsigned long lock_flags = 0;
4046 if (reason != SCSI_QDEPTH_DEFAULT)
4049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4050 res = (struct ipr_resource_entry *)sdev->hostdata;
4052 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4053 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4056 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4057 return sdev->queue_depth;
4061 * ipr_change_queue_type - Change the device's queue type
4062 * @dsev: scsi device struct
4063 * @tag_type: type of tags to use
4066 * actual queue type set
4068 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4071 struct ipr_resource_entry *res;
4072 unsigned long lock_flags = 0;
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4078 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4080 * We don't bother quiescing the device here since the
4081 * adapter firmware does it for us.
4083 scsi_set_tag_type(sdev, tag_type);
4086 scsi_activate_tcq(sdev, sdev->queue_depth);
4088 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4099 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4100 * @dev: device struct
4101 * @attr: device attribute structure
4105 * number of bytes printed to buffer
4107 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4109 struct scsi_device *sdev = to_scsi_device(dev);
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;
4113 ssize_t len = -ENXIO;
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4118 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4123 static struct device_attribute ipr_adapter_handle_attr = {
4125 .name = "adapter_handle",
4128 .show = ipr_show_adapter_handle
4132 * ipr_show_resource_path - Show the resource path or the resource address for
4134 * @dev: device struct
4135 * @attr: device attribute structure
4139 * number of bytes printed to buffer
4141 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4143 struct scsi_device *sdev = to_scsi_device(dev);
4144 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4145 struct ipr_resource_entry *res;
4146 unsigned long lock_flags = 0;
4147 ssize_t len = -ENXIO;
4148 char buffer[IPR_MAX_RES_PATH_LENGTH];
4150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4151 res = (struct ipr_resource_entry *)sdev->hostdata;
4152 if (res && ioa_cfg->sis64)
4153 len = snprintf(buf, PAGE_SIZE, "%s\n",
4154 ipr_format_res_path(res->res_path, buffer,
4157 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4158 res->bus, res->target, res->lun);
4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4164 static struct device_attribute ipr_resource_path_attr = {
4166 .name = "resource_path",
4169 .show = ipr_show_resource_path
4173 * ipr_show_device_id - Show the device_id for this device.
4174 * @dev: device struct
4175 * @attr: device attribute structure
4179 * number of bytes printed to buffer
4181 static ssize_t ipr_show_device_id(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;
4189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4190 res = (struct ipr_resource_entry *)sdev->hostdata;
4191 if (res && ioa_cfg->sis64)
4192 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4194 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4200 static struct device_attribute ipr_device_id_attr = {
4202 .name = "device_id",
4205 .show = ipr_show_device_id
4209 * ipr_show_resource_type - Show the resource type for this device.
4210 * @dev: device struct
4211 * @attr: device attribute structure
4215 * number of bytes printed to buffer
4217 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4219 struct scsi_device *sdev = to_scsi_device(dev);
4220 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4221 struct ipr_resource_entry *res;
4222 unsigned long lock_flags = 0;
4223 ssize_t len = -ENXIO;
4225 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4226 res = (struct ipr_resource_entry *)sdev->hostdata;
4229 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4235 static struct device_attribute ipr_resource_type_attr = {
4237 .name = "resource_type",
4240 .show = ipr_show_resource_type
4243 static struct device_attribute *ipr_dev_attrs[] = {
4244 &ipr_adapter_handle_attr,
4245 &ipr_resource_path_attr,
4246 &ipr_device_id_attr,
4247 &ipr_resource_type_attr,
4252 * ipr_biosparam - Return the HSC mapping
4253 * @sdev: scsi device struct
4254 * @block_device: block device pointer
4255 * @capacity: capacity of the device
4256 * @parm: Array containing returned HSC values.
4258 * This function generates the HSC parms that fdisk uses.
4259 * We want to make sure we return something that places partitions
4260 * on 4k boundaries for best performance with the IOA.
4265 static int ipr_biosparam(struct scsi_device *sdev,
4266 struct block_device *block_device,
4267 sector_t capacity, int *parm)
4275 cylinders = capacity;
4276 sector_div(cylinders, (128 * 32));
4281 parm[2] = cylinders;
4287 * ipr_find_starget - Find target based on bus/target.
4288 * @starget: scsi target struct
4291 * resource entry pointer if found / NULL if not found
4293 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4295 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4296 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4297 struct ipr_resource_entry *res;
4299 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4300 if ((res->bus == starget->channel) &&
4301 (res->target == starget->id) &&
4310 static struct ata_port_info sata_port_info;
4313 * ipr_target_alloc - Prepare for commands to a SCSI target
4314 * @starget: scsi target struct
4316 * If the device is a SATA device, this function allocates an
4317 * ATA port with libata, else it does nothing.
4320 * 0 on success / non-0 on failure
4322 static int ipr_target_alloc(struct scsi_target *starget)
4324 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4325 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4326 struct ipr_sata_port *sata_port;
4327 struct ata_port *ap;
4328 struct ipr_resource_entry *res;
4329 unsigned long lock_flags;
4331 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4332 res = ipr_find_starget(starget);
4333 starget->hostdata = NULL;
4335 if (res && ipr_is_gata(res)) {
4336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4337 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4341 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4343 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4344 sata_port->ioa_cfg = ioa_cfg;
4346 sata_port->res = res;
4348 res->sata_port = sata_port;
4349 ap->private_data = sata_port;
4350 starget->hostdata = sata_port;
4356 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4362 * ipr_target_destroy - Destroy a SCSI target
4363 * @starget: scsi target struct
4365 * If the device was a SATA device, this function frees the libata
4366 * ATA port, else it does nothing.
4369 static void ipr_target_destroy(struct scsi_target *starget)
4371 struct ipr_sata_port *sata_port = starget->hostdata;
4372 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4373 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4375 if (ioa_cfg->sis64) {
4376 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4377 clear_bit(starget->id, ioa_cfg->array_ids);
4378 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4379 clear_bit(starget->id, ioa_cfg->vset_ids);
4380 else if (starget->channel == 0)
4381 clear_bit(starget->id, ioa_cfg->target_ids);
4385 starget->hostdata = NULL;
4386 ata_sas_port_destroy(sata_port->ap);
4392 * ipr_find_sdev - Find device based on bus/target/lun.
4393 * @sdev: scsi device struct
4396 * resource entry pointer if found / NULL if not found
4398 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4400 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4401 struct ipr_resource_entry *res;
4403 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4404 if ((res->bus == sdev->channel) &&
4405 (res->target == sdev->id) &&
4406 (res->lun == sdev->lun))
4414 * ipr_slave_destroy - Unconfigure a SCSI device
4415 * @sdev: scsi device struct
4420 static void ipr_slave_destroy(struct scsi_device *sdev)
4422 struct ipr_resource_entry *res;
4423 struct ipr_ioa_cfg *ioa_cfg;
4424 unsigned long lock_flags = 0;
4426 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4429 res = (struct ipr_resource_entry *) sdev->hostdata;
4432 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4433 sdev->hostdata = NULL;
4435 res->sata_port = NULL;
4437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4441 * ipr_slave_configure - Configure a SCSI device
4442 * @sdev: scsi device struct
4444 * This function configures the specified scsi device.
4449 static int ipr_slave_configure(struct scsi_device *sdev)
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 struct ata_port *ap = NULL;
4454 unsigned long lock_flags = 0;
4455 char buffer[IPR_MAX_RES_PATH_LENGTH];
4457 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4458 res = sdev->hostdata;
4460 if (ipr_is_af_dasd_device(res))
4461 sdev->type = TYPE_RAID;
4462 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4463 sdev->scsi_level = 4;
4464 sdev->no_uld_attach = 1;
4466 if (ipr_is_vset_device(res)) {
4467 blk_queue_rq_timeout(sdev->request_queue,
4468 IPR_VSET_RW_TIMEOUT);
4469 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4471 if (ipr_is_gata(res) && res->sata_port)
4472 ap = res->sata_port->ap;
4473 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4476 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4477 ata_sas_slave_configure(sdev, ap);
4479 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4481 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4482 ipr_format_res_path(res->res_path, buffer,
4486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4491 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4492 * @sdev: scsi device struct
4494 * This function initializes an ATA port so that future commands
4495 * sent through queuecommand will work.
4500 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4502 struct ipr_sata_port *sata_port = NULL;
4506 if (sdev->sdev_target)
4507 sata_port = sdev->sdev_target->hostdata;
4509 rc = ata_sas_port_init(sata_port->ap);
4511 ipr_slave_destroy(sdev);
4518 * ipr_slave_alloc - Prepare for commands to a device.
4519 * @sdev: scsi device struct
4521 * This function saves a pointer to the resource entry
4522 * in the scsi device struct if the device exists. We
4523 * can then use this pointer in ipr_queuecommand when
4524 * handling new commands.
4527 * 0 on success / -ENXIO if device does not exist
4529 static int ipr_slave_alloc(struct scsi_device *sdev)
4531 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4532 struct ipr_resource_entry *res;
4533 unsigned long lock_flags;
4536 sdev->hostdata = NULL;
4538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4540 res = ipr_find_sdev(sdev);
4545 sdev->hostdata = res;
4546 if (!ipr_is_naca_model(res))
4547 res->needs_sync_complete = 1;
4549 if (ipr_is_gata(res)) {
4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4551 return ipr_ata_slave_alloc(sdev);
4555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4561 * ipr_eh_host_reset - Reset the host adapter
4562 * @scsi_cmd: scsi command struct
4567 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4569 struct ipr_ioa_cfg *ioa_cfg;
4573 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4575 dev_err(&ioa_cfg->pdev->dev,
4576 "Adapter being reset as a result of error recovery.\n");
4578 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4579 ioa_cfg->sdt_state = GET_DUMP;
4581 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4587 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4591 spin_lock_irq(cmd->device->host->host_lock);
4592 rc = __ipr_eh_host_reset(cmd);
4593 spin_unlock_irq(cmd->device->host->host_lock);
4599 * ipr_device_reset - Reset the device
4600 * @ioa_cfg: ioa config struct
4601 * @res: resource entry struct
4603 * This function issues a device reset to the affected device.
4604 * If the device is a SCSI device, a LUN reset will be sent
4605 * to the device first. If that does not work, a target reset
4606 * will be sent. If the device is a SATA device, a PHY reset will
4610 * 0 on success / non-zero on failure
4612 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4613 struct ipr_resource_entry *res)
4615 struct ipr_cmnd *ipr_cmd;
4616 struct ipr_ioarcb *ioarcb;
4617 struct ipr_cmd_pkt *cmd_pkt;
4618 struct ipr_ioarcb_ata_regs *regs;
4622 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4623 ioarcb = &ipr_cmd->ioarcb;
4624 cmd_pkt = &ioarcb->cmd_pkt;
4626 if (ipr_cmd->ioa_cfg->sis64) {
4627 regs = &ipr_cmd->i.ata_ioadl.regs;
4628 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4630 regs = &ioarcb->u.add_data.u.regs;
4632 ioarcb->res_handle = res->res_handle;
4633 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4634 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4635 if (ipr_is_gata(res)) {
4636 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4637 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4638 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4641 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4642 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4643 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4644 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4645 if (ipr_cmd->ioa_cfg->sis64)
4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4647 sizeof(struct ipr_ioasa_gata));
4649 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4650 sizeof(struct ipr_ioasa_gata));
4654 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4658 * ipr_sata_reset - Reset the SATA port
4659 * @link: SATA link to reset
4660 * @classes: class of the attached device
4662 * This function issues a SATA phy reset to the affected ATA link.
4665 * 0 on success / non-zero on failure
4667 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4668 unsigned long deadline)
4670 struct ipr_sata_port *sata_port = link->ap->private_data;
4671 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4672 struct ipr_resource_entry *res;
4673 unsigned long lock_flags = 0;
4677 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4678 while(ioa_cfg->in_reset_reload) {
4679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4680 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4684 res = sata_port->res;
4686 rc = ipr_device_reset(ioa_cfg, res);
4687 *classes = res->ata_class;
4690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4696 * ipr_eh_dev_reset - Reset the device
4697 * @scsi_cmd: scsi command struct
4699 * This function issues a device reset to the affected device.
4700 * A LUN reset will be sent to the device first. If that does
4701 * not work, a target reset will be sent.
4706 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4708 struct ipr_cmnd *ipr_cmd;
4709 struct ipr_ioa_cfg *ioa_cfg;
4710 struct ipr_resource_entry *res;
4711 struct ata_port *ap;
4715 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4716 res = scsi_cmd->device->hostdata;
4722 * If we are currently going through reset/reload, return failed. This will force the
4723 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4726 if (ioa_cfg->in_reset_reload)
4728 if (ioa_cfg->ioa_is_dead)
4731 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4732 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4733 if (ipr_cmd->scsi_cmd)
4734 ipr_cmd->done = ipr_scsi_eh_done;
4736 ipr_cmd->done = ipr_sata_eh_done;
4737 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4738 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4739 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4744 res->resetting_device = 1;
4745 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4747 if (ipr_is_gata(res) && res->sata_port) {
4748 ap = res->sata_port->ap;
4749 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4750 ata_std_error_handler(ap);
4751 spin_lock_irq(scsi_cmd->device->host->host_lock);
4753 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4754 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4760 rc = ipr_device_reset(ioa_cfg, res);
4761 res->resetting_device = 0;
4764 return (rc ? FAILED : SUCCESS);
4767 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4771 spin_lock_irq(cmd->device->host->host_lock);
4772 rc = __ipr_eh_dev_reset(cmd);
4773 spin_unlock_irq(cmd->device->host->host_lock);
4779 * ipr_bus_reset_done - Op done function for bus reset.
4780 * @ipr_cmd: ipr command struct
4782 * This function is the op done function for a bus reset
4787 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4790 struct ipr_resource_entry *res;
4793 if (!ioa_cfg->sis64)
4794 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4795 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4796 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4802 * If abort has not completed, indicate the reset has, else call the
4803 * abort's done function to wake the sleeping eh thread
4805 if (ipr_cmd->sibling->sibling)
4806 ipr_cmd->sibling->sibling = NULL;
4808 ipr_cmd->sibling->done(ipr_cmd->sibling);
4810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4815 * ipr_abort_timeout - An abort task has timed out
4816 * @ipr_cmd: ipr command struct
4818 * This function handles when an abort task times out. If this
4819 * happens we issue a bus reset since we have resources tied
4820 * up that must be freed before returning to the midlayer.
4825 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4827 struct ipr_cmnd *reset_cmd;
4828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4829 struct ipr_cmd_pkt *cmd_pkt;
4830 unsigned long lock_flags = 0;
4833 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4834 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4835 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4839 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4840 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4841 ipr_cmd->sibling = reset_cmd;
4842 reset_cmd->sibling = ipr_cmd;
4843 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4844 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4845 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4846 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4847 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4849 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4850 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4855 * ipr_cancel_op - Cancel specified op
4856 * @scsi_cmd: scsi command struct
4858 * This function cancels specified op.
4863 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4865 struct ipr_cmnd *ipr_cmd;
4866 struct ipr_ioa_cfg *ioa_cfg;
4867 struct ipr_resource_entry *res;
4868 struct ipr_cmd_pkt *cmd_pkt;
4873 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4874 res = scsi_cmd->device->hostdata;
4876 /* If we are currently going through reset/reload, return failed.
4877 * This will force the mid-layer to call ipr_eh_host_reset,
4878 * which will then go to sleep and wait for the reset to complete
4880 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4882 if (!res || !ipr_is_gscsi(res))
4885 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4886 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4887 ipr_cmd->done = ipr_scsi_eh_done;
4896 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4897 ipr_cmd->ioarcb.res_handle = res->res_handle;
4898 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4899 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4900 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4901 ipr_cmd->u.sdev = scsi_cmd->device;
4903 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4905 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4906 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4909 * If the abort task timed out and we sent a bus reset, we will get
4910 * one the following responses to the abort
4912 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4917 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4918 if (!ipr_is_naca_model(res))
4919 res->needs_sync_complete = 1;
4922 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4926 * ipr_eh_abort - Abort a single op
4927 * @scsi_cmd: scsi command struct
4932 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4934 unsigned long flags;
4939 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4940 rc = ipr_cancel_op(scsi_cmd);
4941 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4948 * ipr_handle_other_interrupt - Handle "other" interrupts
4949 * @ioa_cfg: ioa config struct
4950 * @int_reg: interrupt register
4953 * IRQ_NONE / IRQ_HANDLED
4955 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4956 volatile u32 int_reg)
4958 irqreturn_t rc = IRQ_HANDLED;
4960 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4961 /* Mask the interrupt */
4962 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4964 /* Clear the interrupt */
4965 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4966 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4968 list_del(&ioa_cfg->reset_cmd->queue);
4969 del_timer(&ioa_cfg->reset_cmd->timer);
4970 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4972 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4973 ioa_cfg->ioa_unit_checked = 1;
4975 dev_err(&ioa_cfg->pdev->dev,
4976 "Permanent IOA failure. 0x%08X\n", int_reg);
4978 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4979 ioa_cfg->sdt_state = GET_DUMP;
4981 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4982 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4989 * ipr_isr_eh - Interrupt service routine error handler
4990 * @ioa_cfg: ioa config struct
4991 * @msg: message to log
4996 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4998 ioa_cfg->errors_logged++;
4999 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5001 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5002 ioa_cfg->sdt_state = GET_DUMP;
5004 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5008 * ipr_isr - Interrupt service routine
5010 * @devp: pointer to ioa config struct
5013 * IRQ_NONE / IRQ_HANDLED
5015 static irqreturn_t ipr_isr(int irq, void *devp)
5017 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5018 unsigned long lock_flags = 0;
5019 volatile u32 int_reg, int_mask_reg;
5023 struct ipr_cmnd *ipr_cmd;
5024 irqreturn_t rc = IRQ_NONE;
5026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5028 /* If interrupts are disabled, ignore the interrupt */
5029 if (!ioa_cfg->allow_interrupts) {
5030 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5034 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5035 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5037 /* If an interrupt on the adapter did not occur, ignore it.
5038 * Or in the case of SIS 64, check for a stage change interrupt.
5040 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
5041 if (ioa_cfg->sis64) {
5042 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5043 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5044 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5046 /* clear stage change */
5047 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5048 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5049 list_del(&ioa_cfg->reset_cmd->queue);
5050 del_timer(&ioa_cfg->reset_cmd->timer);
5051 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5064 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5065 ioa_cfg->toggle_bit) {
5067 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5068 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5070 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5071 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5076 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5078 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5080 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5082 list_del(&ipr_cmd->queue);
5083 del_timer(&ipr_cmd->timer);
5084 ipr_cmd->done(ipr_cmd);
5088 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5089 ioa_cfg->hrrq_curr++;
5091 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5092 ioa_cfg->toggle_bit ^= 1u;
5096 if (ipr_cmd != NULL) {
5097 /* Clear the PCI interrupt */
5099 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5100 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5101 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5102 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5104 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
5105 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5114 if (unlikely(rc == IRQ_NONE))
5115 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5117 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5122 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5123 * @ioa_cfg: ioa config struct
5124 * @ipr_cmd: ipr command struct
5127 * 0 on success / -1 on failure
5129 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5130 struct ipr_cmnd *ipr_cmd)
5133 struct scatterlist *sg;
5135 u32 ioadl_flags = 0;
5136 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5137 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5138 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5140 length = scsi_bufflen(scsi_cmd);
5144 nseg = scsi_dma_map(scsi_cmd);
5146 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5150 ipr_cmd->dma_use_sg = nseg;
5152 ioarcb->data_transfer_length = cpu_to_be32(length);
5154 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5156 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5157 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5158 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5159 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5160 ioadl_flags = IPR_IOADL_FLAGS_READ;
5162 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5163 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5164 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5165 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5168 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5173 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5174 * @ioa_cfg: ioa config struct
5175 * @ipr_cmd: ipr command struct
5178 * 0 on success / -1 on failure
5180 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5181 struct ipr_cmnd *ipr_cmd)
5184 struct scatterlist *sg;
5186 u32 ioadl_flags = 0;
5187 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5188 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5189 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5191 length = scsi_bufflen(scsi_cmd);
5195 nseg = scsi_dma_map(scsi_cmd);
5197 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5201 ipr_cmd->dma_use_sg = nseg;
5203 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5204 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5205 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5206 ioarcb->data_transfer_length = cpu_to_be32(length);
5208 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5209 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5210 ioadl_flags = IPR_IOADL_FLAGS_READ;
5211 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5212 ioarcb->read_ioadl_len =
5213 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5216 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5217 ioadl = ioarcb->u.add_data.u.ioadl;
5218 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5219 offsetof(struct ipr_ioarcb, u.add_data));
5220 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5223 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5224 ioadl[i].flags_and_data_len =
5225 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5226 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5229 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5234 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5235 * @scsi_cmd: scsi command struct
5240 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5243 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5245 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5247 case MSG_SIMPLE_TAG:
5248 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5251 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5253 case MSG_ORDERED_TAG:
5254 rc = IPR_FLAGS_LO_ORDERED_TASK;
5263 * ipr_erp_done - Process completion of ERP for a device
5264 * @ipr_cmd: ipr command struct
5266 * This function copies the sense buffer into the scsi_cmd
5267 * struct and pushes the scsi_done function.
5272 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5274 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5275 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5277 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5279 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5280 scsi_cmd->result |= (DID_ERROR << 16);
5281 scmd_printk(KERN_ERR, scsi_cmd,
5282 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5284 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5285 SCSI_SENSE_BUFFERSIZE);
5289 if (!ipr_is_naca_model(res))
5290 res->needs_sync_complete = 1;
5293 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5294 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5295 scsi_cmd->scsi_done(scsi_cmd);
5299 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5300 * @ipr_cmd: ipr command struct
5305 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5307 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5308 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5309 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5311 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5312 ioarcb->data_transfer_length = 0;
5313 ioarcb->read_data_transfer_length = 0;
5314 ioarcb->ioadl_len = 0;
5315 ioarcb->read_ioadl_len = 0;
5316 ioasa->hdr.ioasc = 0;
5317 ioasa->hdr.residual_data_len = 0;
5319 if (ipr_cmd->ioa_cfg->sis64)
5320 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5321 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5323 ioarcb->write_ioadl_addr =
5324 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5325 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5330 * ipr_erp_request_sense - Send request sense to a device
5331 * @ipr_cmd: ipr command struct
5333 * This function sends a request sense to a device as a result
5334 * of a check condition.
5339 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5341 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5342 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5344 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5345 ipr_erp_done(ipr_cmd);
5349 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5351 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5352 cmd_pkt->cdb[0] = REQUEST_SENSE;
5353 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5354 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5355 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5356 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5358 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5359 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5361 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5362 IPR_REQUEST_SENSE_TIMEOUT * 2);
5366 * ipr_erp_cancel_all - Send cancel all to a device
5367 * @ipr_cmd: ipr command struct
5369 * This function sends a cancel all to a device to clear the
5370 * queue. If we are running TCQ on the device, QERR is set to 1,
5371 * which means all outstanding ops have been dropped on the floor.
5372 * Cancel all will return them to us.
5377 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5379 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5380 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5381 struct ipr_cmd_pkt *cmd_pkt;
5385 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5387 if (!scsi_get_tag_type(scsi_cmd->device)) {
5388 ipr_erp_request_sense(ipr_cmd);
5392 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5393 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5394 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5396 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5397 IPR_CANCEL_ALL_TIMEOUT);
5401 * ipr_dump_ioasa - Dump contents of IOASA
5402 * @ioa_cfg: ioa config struct
5403 * @ipr_cmd: ipr command struct
5404 * @res: resource entry struct
5406 * This function is invoked by the interrupt handler when ops
5407 * fail. It will log the IOASA if appropriate. Only called
5413 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5414 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5418 u32 ioasc, fd_ioasc;
5419 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5420 __be32 *ioasa_data = (__be32 *)ioasa;
5423 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5424 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5429 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5432 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5433 error_index = ipr_get_error(fd_ioasc);
5435 error_index = ipr_get_error(ioasc);
5437 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5438 /* Don't log an error if the IOA already logged one */
5439 if (ioasa->hdr.ilid != 0)
5442 if (!ipr_is_gscsi(res))
5445 if (ipr_error_table[error_index].log_ioasa == 0)
5449 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5451 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5452 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5453 data_len = sizeof(struct ipr_ioasa64);
5454 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5455 data_len = sizeof(struct ipr_ioasa);
5457 ipr_err("IOASA Dump:\n");
5459 for (i = 0; i < data_len / 4; i += 4) {
5460 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5461 be32_to_cpu(ioasa_data[i]),
5462 be32_to_cpu(ioasa_data[i+1]),
5463 be32_to_cpu(ioasa_data[i+2]),
5464 be32_to_cpu(ioasa_data[i+3]));
5469 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5471 * @sense_buf: sense data buffer
5476 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5479 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5480 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5481 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5482 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5484 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5486 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5489 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5491 if (ipr_is_vset_device(res) &&
5492 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5493 ioasa->u.vset.failing_lba_hi != 0) {
5494 sense_buf[0] = 0x72;
5495 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5496 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5497 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5501 sense_buf[9] = 0x0A;
5502 sense_buf[10] = 0x80;
5504 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5506 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5507 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5508 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5509 sense_buf[15] = failing_lba & 0x000000ff;
5511 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5513 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5514 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5515 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5516 sense_buf[19] = failing_lba & 0x000000ff;
5518 sense_buf[0] = 0x70;
5519 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5520 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5521 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5523 /* Illegal request */
5524 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5525 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5526 sense_buf[7] = 10; /* additional length */
5528 /* IOARCB was in error */
5529 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5530 sense_buf[15] = 0xC0;
5531 else /* Parameter data was invalid */
5532 sense_buf[15] = 0x80;
5535 ((IPR_FIELD_POINTER_MASK &
5536 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5538 (IPR_FIELD_POINTER_MASK &
5539 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5541 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5542 if (ipr_is_vset_device(res))
5543 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5545 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5547 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5548 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5549 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5550 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5551 sense_buf[6] = failing_lba & 0x000000ff;
5554 sense_buf[7] = 6; /* additional length */
5560 * ipr_get_autosense - Copy autosense data to sense buffer
5561 * @ipr_cmd: ipr command struct
5563 * This function copies the autosense buffer to the buffer
5564 * in the scsi_cmd, if there is autosense available.
5567 * 1 if autosense was available / 0 if not
5569 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5574 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5577 if (ipr_cmd->ioa_cfg->sis64)
5578 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5579 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5580 SCSI_SENSE_BUFFERSIZE));
5582 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5583 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5584 SCSI_SENSE_BUFFERSIZE));
5589 * ipr_erp_start - Process an error response for a SCSI op
5590 * @ioa_cfg: ioa config struct
5591 * @ipr_cmd: ipr command struct
5593 * This function determines whether or not to initiate ERP
5594 * on the affected device.
5599 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5600 struct ipr_cmnd *ipr_cmd)
5602 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5603 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5604 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5605 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5608 ipr_scsi_eh_done(ipr_cmd);
5612 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5613 ipr_gen_sense(ipr_cmd);
5615 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5617 switch (masked_ioasc) {
5618 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5619 if (ipr_is_naca_model(res))
5620 scsi_cmd->result |= (DID_ABORT << 16);
5622 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5624 case IPR_IOASC_IR_RESOURCE_HANDLE:
5625 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5626 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5628 case IPR_IOASC_HW_SEL_TIMEOUT:
5629 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5630 if (!ipr_is_naca_model(res))
5631 res->needs_sync_complete = 1;
5633 case IPR_IOASC_SYNC_REQUIRED:
5635 res->needs_sync_complete = 1;
5636 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5638 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5639 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5640 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5642 case IPR_IOASC_BUS_WAS_RESET:
5643 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5645 * Report the bus reset and ask for a retry. The device
5646 * will give CC/UA the next command.
5648 if (!res->resetting_device)
5649 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5650 scsi_cmd->result |= (DID_ERROR << 16);
5651 if (!ipr_is_naca_model(res))
5652 res->needs_sync_complete = 1;
5654 case IPR_IOASC_HW_DEV_BUS_STATUS:
5655 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5656 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5657 if (!ipr_get_autosense(ipr_cmd)) {
5658 if (!ipr_is_naca_model(res)) {
5659 ipr_erp_cancel_all(ipr_cmd);
5664 if (!ipr_is_naca_model(res))
5665 res->needs_sync_complete = 1;
5667 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5670 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5671 scsi_cmd->result |= (DID_ERROR << 16);
5672 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5673 res->needs_sync_complete = 1;
5677 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5678 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5679 scsi_cmd->scsi_done(scsi_cmd);
5683 * ipr_scsi_done - mid-layer done function
5684 * @ipr_cmd: ipr command struct
5686 * This function is invoked by the interrupt handler for
5687 * ops generated by the SCSI mid-layer
5692 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5694 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5695 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5696 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5698 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5700 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5701 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5702 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5703 scsi_cmd->scsi_done(scsi_cmd);
5705 ipr_erp_start(ioa_cfg, ipr_cmd);
5709 * ipr_queuecommand - Queue a mid-layer request
5710 * @scsi_cmd: scsi command struct
5711 * @done: done function
5713 * This function queues a request generated by the mid-layer.
5717 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5718 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5720 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5721 void (*done) (struct scsi_cmnd *))
5723 struct ipr_ioa_cfg *ioa_cfg;
5724 struct ipr_resource_entry *res;
5725 struct ipr_ioarcb *ioarcb;
5726 struct ipr_cmnd *ipr_cmd;
5729 scsi_cmd->scsi_done = done;
5730 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5731 res = scsi_cmd->device->hostdata;
5732 scsi_cmd->result = (DID_OK << 16);
5735 * We are currently blocking all devices due to a host reset
5736 * We have told the host to stop giving us new requests, but
5737 * ERP ops don't count. FIXME
5739 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5740 return SCSI_MLQUEUE_HOST_BUSY;
5743 * FIXME - Create scsi_set_host_offline interface
5744 * and the ioa_is_dead check can be removed
5746 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5747 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5748 scsi_cmd->result = (DID_NO_CONNECT << 16);
5749 scsi_cmd->scsi_done(scsi_cmd);
5753 if (ipr_is_gata(res) && res->sata_port)
5754 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5756 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5757 ioarcb = &ipr_cmd->ioarcb;
5758 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5760 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5761 ipr_cmd->scsi_cmd = scsi_cmd;
5762 ioarcb->res_handle = res->res_handle;
5763 ipr_cmd->done = ipr_scsi_done;
5764 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5766 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5767 if (scsi_cmd->underflow == 0)
5768 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5770 if (res->needs_sync_complete) {
5771 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5772 res->needs_sync_complete = 0;
5775 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5776 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5777 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5778 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5781 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5782 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5783 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5785 if (likely(rc == 0)) {
5787 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5789 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5792 if (likely(rc == 0)) {
5794 ipr_send_command(ipr_cmd);
5796 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5797 return SCSI_MLQUEUE_HOST_BUSY;
5803 static DEF_SCSI_QCMD(ipr_queuecommand)
5806 * ipr_ioctl - IOCTL handler
5807 * @sdev: scsi device struct
5812 * 0 on success / other on failure
5814 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5816 struct ipr_resource_entry *res;
5818 res = (struct ipr_resource_entry *)sdev->hostdata;
5819 if (res && ipr_is_gata(res)) {
5820 if (cmd == HDIO_GET_IDENTITY)
5822 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5829 * ipr_info - Get information about the card/driver
5830 * @scsi_host: scsi host struct
5833 * pointer to buffer with description string
5835 static const char * ipr_ioa_info(struct Scsi_Host *host)
5837 static char buffer[512];
5838 struct ipr_ioa_cfg *ioa_cfg;
5839 unsigned long lock_flags = 0;
5841 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5843 spin_lock_irqsave(host->host_lock, lock_flags);
5844 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5845 spin_unlock_irqrestore(host->host_lock, lock_flags);
5850 static struct scsi_host_template driver_template = {
5851 .module = THIS_MODULE,
5853 .info = ipr_ioa_info,
5855 .queuecommand = ipr_queuecommand,
5856 .eh_abort_handler = ipr_eh_abort,
5857 .eh_device_reset_handler = ipr_eh_dev_reset,
5858 .eh_host_reset_handler = ipr_eh_host_reset,
5859 .slave_alloc = ipr_slave_alloc,
5860 .slave_configure = ipr_slave_configure,
5861 .slave_destroy = ipr_slave_destroy,
5862 .target_alloc = ipr_target_alloc,
5863 .target_destroy = ipr_target_destroy,
5864 .change_queue_depth = ipr_change_queue_depth,
5865 .change_queue_type = ipr_change_queue_type,
5866 .bios_param = ipr_biosparam,
5867 .can_queue = IPR_MAX_COMMANDS,
5869 .sg_tablesize = IPR_MAX_SGLIST,
5870 .max_sectors = IPR_IOA_MAX_SECTORS,
5871 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5872 .use_clustering = ENABLE_CLUSTERING,
5873 .shost_attrs = ipr_ioa_attrs,
5874 .sdev_attrs = ipr_dev_attrs,
5875 .proc_name = IPR_NAME
5879 * ipr_ata_phy_reset - libata phy_reset handler
5880 * @ap: ata port to reset
5883 static void ipr_ata_phy_reset(struct ata_port *ap)
5885 unsigned long flags;
5886 struct ipr_sata_port *sata_port = ap->private_data;
5887 struct ipr_resource_entry *res = sata_port->res;
5888 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5892 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5893 while(ioa_cfg->in_reset_reload) {
5894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5895 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5896 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5899 if (!ioa_cfg->allow_cmds)
5902 rc = ipr_device_reset(ioa_cfg, res);
5905 ap->link.device[0].class = ATA_DEV_NONE;
5909 ap->link.device[0].class = res->ata_class;
5910 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5911 ap->link.device[0].class = ATA_DEV_NONE;
5914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5919 * ipr_ata_post_internal - Cleanup after an internal command
5920 * @qc: ATA queued command
5925 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5927 struct ipr_sata_port *sata_port = qc->ap->private_data;
5928 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5929 struct ipr_cmnd *ipr_cmd;
5930 unsigned long flags;
5932 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5933 while(ioa_cfg->in_reset_reload) {
5934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5935 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5936 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5939 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5940 if (ipr_cmd->qc == qc) {
5941 ipr_device_reset(ioa_cfg, sata_port->res);
5945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5949 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5950 * @regs: destination
5951 * @tf: source ATA taskfile
5956 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5957 struct ata_taskfile *tf)
5959 regs->feature = tf->feature;
5960 regs->nsect = tf->nsect;
5961 regs->lbal = tf->lbal;
5962 regs->lbam = tf->lbam;
5963 regs->lbah = tf->lbah;
5964 regs->device = tf->device;
5965 regs->command = tf->command;
5966 regs->hob_feature = tf->hob_feature;
5967 regs->hob_nsect = tf->hob_nsect;
5968 regs->hob_lbal = tf->hob_lbal;
5969 regs->hob_lbam = tf->hob_lbam;
5970 regs->hob_lbah = tf->hob_lbah;
5971 regs->ctl = tf->ctl;
5975 * ipr_sata_done - done function for SATA commands
5976 * @ipr_cmd: ipr command struct
5978 * This function is invoked by the interrupt handler for
5979 * ops generated by the SCSI mid-layer to SATA devices
5984 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5986 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5987 struct ata_queued_cmd *qc = ipr_cmd->qc;
5988 struct ipr_sata_port *sata_port = qc->ap->private_data;
5989 struct ipr_resource_entry *res = sata_port->res;
5990 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5992 if (ipr_cmd->ioa_cfg->sis64)
5993 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5994 sizeof(struct ipr_ioasa_gata));
5996 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5997 sizeof(struct ipr_ioasa_gata));
5998 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6000 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6001 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6003 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6004 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6006 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6007 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6008 ata_qc_complete(qc);
6012 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6013 * @ipr_cmd: ipr command struct
6014 * @qc: ATA queued command
6017 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6018 struct ata_queued_cmd *qc)
6020 u32 ioadl_flags = 0;
6021 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6022 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6023 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6024 int len = qc->nbytes;
6025 struct scatterlist *sg;
6027 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6032 if (qc->dma_dir == DMA_TO_DEVICE) {
6033 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6034 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6035 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6036 ioadl_flags = IPR_IOADL_FLAGS_READ;
6038 ioarcb->data_transfer_length = cpu_to_be32(len);
6040 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6041 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6042 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6044 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6045 ioadl64->flags = cpu_to_be32(ioadl_flags);
6046 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6047 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6049 last_ioadl64 = ioadl64;
6053 if (likely(last_ioadl64))
6054 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6058 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6059 * @ipr_cmd: ipr command struct
6060 * @qc: ATA queued command
6063 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6064 struct ata_queued_cmd *qc)
6066 u32 ioadl_flags = 0;
6067 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6068 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6069 struct ipr_ioadl_desc *last_ioadl = NULL;
6070 int len = qc->nbytes;
6071 struct scatterlist *sg;
6077 if (qc->dma_dir == DMA_TO_DEVICE) {
6078 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6079 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6080 ioarcb->data_transfer_length = cpu_to_be32(len);
6082 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6083 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6084 ioadl_flags = IPR_IOADL_FLAGS_READ;
6085 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6086 ioarcb->read_ioadl_len =
6087 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6090 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6091 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6092 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6098 if (likely(last_ioadl))
6099 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6103 * ipr_qc_issue - Issue a SATA qc to a device
6104 * @qc: queued command
6109 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6111 struct ata_port *ap = qc->ap;
6112 struct ipr_sata_port *sata_port = ap->private_data;
6113 struct ipr_resource_entry *res = sata_port->res;
6114 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6115 struct ipr_cmnd *ipr_cmd;
6116 struct ipr_ioarcb *ioarcb;
6117 struct ipr_ioarcb_ata_regs *regs;
6119 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6120 return AC_ERR_SYSTEM;
6122 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6123 ioarcb = &ipr_cmd->ioarcb;
6125 if (ioa_cfg->sis64) {
6126 regs = &ipr_cmd->i.ata_ioadl.regs;
6127 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6129 regs = &ioarcb->u.add_data.u.regs;
6131 memset(regs, 0, sizeof(*regs));
6132 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6134 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6136 ipr_cmd->done = ipr_sata_done;
6137 ipr_cmd->ioarcb.res_handle = res->res_handle;
6138 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6139 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6140 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6141 ipr_cmd->dma_use_sg = qc->n_elem;
6144 ipr_build_ata_ioadl64(ipr_cmd, qc);
6146 ipr_build_ata_ioadl(ipr_cmd, qc);
6148 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6149 ipr_copy_sata_tf(regs, &qc->tf);
6150 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6151 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6153 switch (qc->tf.protocol) {
6154 case ATA_PROT_NODATA:
6159 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6162 case ATAPI_PROT_PIO:
6163 case ATAPI_PROT_NODATA:
6164 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6167 case ATAPI_PROT_DMA:
6168 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6169 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6174 return AC_ERR_INVALID;
6179 ipr_send_command(ipr_cmd);
6185 * ipr_qc_fill_rtf - Read result TF
6186 * @qc: ATA queued command
6191 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6193 struct ipr_sata_port *sata_port = qc->ap->private_data;
6194 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6195 struct ata_taskfile *tf = &qc->result_tf;
6197 tf->feature = g->error;
6198 tf->nsect = g->nsect;
6202 tf->device = g->device;
6203 tf->command = g->status;
6204 tf->hob_nsect = g->hob_nsect;
6205 tf->hob_lbal = g->hob_lbal;
6206 tf->hob_lbam = g->hob_lbam;
6207 tf->hob_lbah = g->hob_lbah;
6208 tf->ctl = g->alt_status;
6213 static struct ata_port_operations ipr_sata_ops = {
6214 .phy_reset = ipr_ata_phy_reset,
6215 .hardreset = ipr_sata_reset,
6216 .post_internal_cmd = ipr_ata_post_internal,
6217 .qc_prep = ata_noop_qc_prep,
6218 .qc_issue = ipr_qc_issue,
6219 .qc_fill_rtf = ipr_qc_fill_rtf,
6220 .port_start = ata_sas_port_start,
6221 .port_stop = ata_sas_port_stop
6224 static struct ata_port_info sata_port_info = {
6225 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6226 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6227 .pio_mask = 0x10, /* pio4 */
6229 .udma_mask = 0x7f, /* udma0-6 */
6230 .port_ops = &ipr_sata_ops
6233 #ifdef CONFIG_PPC_PSERIES
6234 static const u16 ipr_blocked_processors[] = {
6246 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6247 * @ioa_cfg: ioa cfg struct
6249 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6250 * certain pSeries hardware. This function determines if the given
6251 * adapter is in one of these confgurations or not.
6254 * 1 if adapter is not supported / 0 if adapter is supported
6256 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6260 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6261 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6262 if (__is_processor(ipr_blocked_processors[i]))
6269 #define ipr_invalid_adapter(ioa_cfg) 0
6273 * ipr_ioa_bringdown_done - IOA bring down completion.
6274 * @ipr_cmd: ipr command struct
6276 * This function processes the completion of an adapter bring down.
6277 * It wakes any reset sleepers.
6282 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6284 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6287 ioa_cfg->in_reset_reload = 0;
6288 ioa_cfg->reset_retries = 0;
6289 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6290 wake_up_all(&ioa_cfg->reset_wait_q);
6292 spin_unlock_irq(ioa_cfg->host->host_lock);
6293 scsi_unblock_requests(ioa_cfg->host);
6294 spin_lock_irq(ioa_cfg->host->host_lock);
6297 return IPR_RC_JOB_RETURN;
6301 * ipr_ioa_reset_done - IOA reset completion.
6302 * @ipr_cmd: ipr command struct
6304 * This function processes the completion of an adapter reset.
6305 * It schedules any necessary mid-layer add/removes and
6306 * wakes any reset sleepers.
6311 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6313 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6314 struct ipr_resource_entry *res;
6315 struct ipr_hostrcb *hostrcb, *temp;
6319 ioa_cfg->in_reset_reload = 0;
6320 ioa_cfg->allow_cmds = 1;
6321 ioa_cfg->reset_cmd = NULL;
6322 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6324 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6325 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6330 schedule_work(&ioa_cfg->work_q);
6332 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6333 list_del(&hostrcb->queue);
6334 if (i++ < IPR_NUM_LOG_HCAMS)
6335 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6340 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6341 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6343 ioa_cfg->reset_retries = 0;
6344 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6345 wake_up_all(&ioa_cfg->reset_wait_q);
6347 spin_unlock(ioa_cfg->host->host_lock);
6348 scsi_unblock_requests(ioa_cfg->host);
6349 spin_lock(ioa_cfg->host->host_lock);
6351 if (!ioa_cfg->allow_cmds)
6352 scsi_block_requests(ioa_cfg->host);
6355 return IPR_RC_JOB_RETURN;
6359 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6360 * @supported_dev: supported device struct
6361 * @vpids: vendor product id struct
6366 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6367 struct ipr_std_inq_vpids *vpids)
6369 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6370 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6371 supported_dev->num_records = 1;
6372 supported_dev->data_length =
6373 cpu_to_be16(sizeof(struct ipr_supported_device));
6374 supported_dev->reserved = 0;
6378 * ipr_set_supported_devs - Send Set Supported Devices for a device
6379 * @ipr_cmd: ipr command struct
6381 * This function sends a Set Supported Devices to the adapter
6384 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6386 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6388 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6389 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6390 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6391 struct ipr_resource_entry *res = ipr_cmd->u.res;
6393 ipr_cmd->job_step = ipr_ioa_reset_done;
6395 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6396 if (!ipr_is_scsi_disk(res))
6399 ipr_cmd->u.res = res;
6400 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6402 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6403 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6404 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6406 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6407 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6408 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6409 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6411 ipr_init_ioadl(ipr_cmd,
6412 ioa_cfg->vpd_cbs_dma +
6413 offsetof(struct ipr_misc_cbs, supp_dev),
6414 sizeof(struct ipr_supported_device),
6415 IPR_IOADL_FLAGS_WRITE_LAST);
6417 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6418 IPR_SET_SUP_DEVICE_TIMEOUT);
6420 if (!ioa_cfg->sis64)
6421 ipr_cmd->job_step = ipr_set_supported_devs;
6422 return IPR_RC_JOB_RETURN;
6425 return IPR_RC_JOB_CONTINUE;
6429 * ipr_get_mode_page - Locate specified mode page
6430 * @mode_pages: mode page buffer
6431 * @page_code: page code to find
6432 * @len: minimum required length for mode page
6435 * pointer to mode page / NULL on failure
6437 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6438 u32 page_code, u32 len)
6440 struct ipr_mode_page_hdr *mode_hdr;
6444 if (!mode_pages || (mode_pages->hdr.length == 0))
6447 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6448 mode_hdr = (struct ipr_mode_page_hdr *)
6449 (mode_pages->data + mode_pages->hdr.block_desc_len);
6452 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6453 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6457 page_length = (sizeof(struct ipr_mode_page_hdr) +
6458 mode_hdr->page_length);
6459 length -= page_length;
6460 mode_hdr = (struct ipr_mode_page_hdr *)
6461 ((unsigned long)mode_hdr + page_length);
6468 * ipr_check_term_power - Check for term power errors
6469 * @ioa_cfg: ioa config struct
6470 * @mode_pages: IOAFP mode pages buffer
6472 * Check the IOAFP's mode page 28 for term power errors
6477 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6478 struct ipr_mode_pages *mode_pages)
6482 struct ipr_dev_bus_entry *bus;
6483 struct ipr_mode_page28 *mode_page;
6485 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6486 sizeof(struct ipr_mode_page28));
6488 entry_length = mode_page->entry_length;
6490 bus = mode_page->bus;
6492 for (i = 0; i < mode_page->num_entries; i++) {
6493 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6494 dev_err(&ioa_cfg->pdev->dev,
6495 "Term power is absent on scsi bus %d\n",
6499 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6504 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6505 * @ioa_cfg: ioa config struct
6507 * Looks through the config table checking for SES devices. If
6508 * the SES device is in the SES table indicating a maximum SCSI
6509 * bus speed, the speed is limited for the bus.
6514 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6519 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6520 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6521 ioa_cfg->bus_attr[i].bus_width);
6523 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6524 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6529 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6530 * @ioa_cfg: ioa config struct
6531 * @mode_pages: mode page 28 buffer
6533 * Updates mode page 28 based on driver configuration
6538 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6539 struct ipr_mode_pages *mode_pages)
6541 int i, entry_length;
6542 struct ipr_dev_bus_entry *bus;
6543 struct ipr_bus_attributes *bus_attr;
6544 struct ipr_mode_page28 *mode_page;
6546 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6547 sizeof(struct ipr_mode_page28));
6549 entry_length = mode_page->entry_length;
6551 /* Loop for each device bus entry */
6552 for (i = 0, bus = mode_page->bus;
6553 i < mode_page->num_entries;
6554 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6555 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6556 dev_err(&ioa_cfg->pdev->dev,
6557 "Invalid resource address reported: 0x%08X\n",
6558 IPR_GET_PHYS_LOC(bus->res_addr));
6562 bus_attr = &ioa_cfg->bus_attr[i];
6563 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6564 bus->bus_width = bus_attr->bus_width;
6565 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6566 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6567 if (bus_attr->qas_enabled)
6568 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6570 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6575 * ipr_build_mode_select - Build a mode select command
6576 * @ipr_cmd: ipr command struct
6577 * @res_handle: resource handle to send command to
6578 * @parm: Byte 2 of Mode Sense command
6579 * @dma_addr: DMA buffer address
6580 * @xfer_len: data transfer length
6585 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6586 __be32 res_handle, u8 parm,
6587 dma_addr_t dma_addr, u8 xfer_len)
6589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6591 ioarcb->res_handle = res_handle;
6592 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6593 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6594 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6595 ioarcb->cmd_pkt.cdb[1] = parm;
6596 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6598 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6602 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6603 * @ipr_cmd: ipr command struct
6605 * This function sets up the SCSI bus attributes and sends
6606 * a Mode Select for Page 28 to activate them.
6611 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6613 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6614 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6618 ipr_scsi_bus_speed_limit(ioa_cfg);
6619 ipr_check_term_power(ioa_cfg, mode_pages);
6620 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6621 length = mode_pages->hdr.length + 1;
6622 mode_pages->hdr.length = 0;
6624 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6625 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6628 ipr_cmd->job_step = ipr_set_supported_devs;
6629 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6630 struct ipr_resource_entry, queue);
6631 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6634 return IPR_RC_JOB_RETURN;
6638 * ipr_build_mode_sense - Builds a mode sense command
6639 * @ipr_cmd: ipr command struct
6640 * @res: resource entry struct
6641 * @parm: Byte 2 of mode sense command
6642 * @dma_addr: DMA address of mode sense buffer
6643 * @xfer_len: Size of DMA buffer
6648 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6650 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6652 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6654 ioarcb->res_handle = res_handle;
6655 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6656 ioarcb->cmd_pkt.cdb[2] = parm;
6657 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6658 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6660 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6664 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6665 * @ipr_cmd: ipr command struct
6667 * This function handles the failure of an IOA bringup command.
6672 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6675 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6677 dev_err(&ioa_cfg->pdev->dev,
6678 "0x%02X failed with IOASC: 0x%08X\n",
6679 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6681 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6682 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6683 return IPR_RC_JOB_RETURN;
6687 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6688 * @ipr_cmd: ipr command struct
6690 * This function handles the failure of a Mode Sense to the IOAFP.
6691 * Some adapters do not handle all mode pages.
6694 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6696 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6698 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6699 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6701 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6702 ipr_cmd->job_step = ipr_set_supported_devs;
6703 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6704 struct ipr_resource_entry, queue);
6705 return IPR_RC_JOB_CONTINUE;
6708 return ipr_reset_cmd_failed(ipr_cmd);
6712 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6713 * @ipr_cmd: ipr command struct
6715 * This function send a Page 28 mode sense to the IOA to
6716 * retrieve SCSI bus attributes.
6721 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6726 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6727 0x28, ioa_cfg->vpd_cbs_dma +
6728 offsetof(struct ipr_misc_cbs, mode_pages),
6729 sizeof(struct ipr_mode_pages));
6731 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6732 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6734 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6737 return IPR_RC_JOB_RETURN;
6741 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6742 * @ipr_cmd: ipr command struct
6744 * This function enables dual IOA RAID support if possible.
6749 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6751 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6752 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6753 struct ipr_mode_page24 *mode_page;
6757 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6758 sizeof(struct ipr_mode_page24));
6761 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6763 length = mode_pages->hdr.length + 1;
6764 mode_pages->hdr.length = 0;
6766 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6767 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6770 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6771 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6774 return IPR_RC_JOB_RETURN;
6778 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6779 * @ipr_cmd: ipr command struct
6781 * This function handles the failure of a Mode Sense to the IOAFP.
6782 * Some adapters do not handle all mode pages.
6785 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6787 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6789 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6791 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6792 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6793 return IPR_RC_JOB_CONTINUE;
6796 return ipr_reset_cmd_failed(ipr_cmd);
6800 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6801 * @ipr_cmd: ipr command struct
6803 * This function send a mode sense to the IOA to retrieve
6804 * the IOA Advanced Function Control mode page.
6809 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6811 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6814 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6815 0x24, ioa_cfg->vpd_cbs_dma +
6816 offsetof(struct ipr_misc_cbs, mode_pages),
6817 sizeof(struct ipr_mode_pages));
6819 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6820 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6822 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6825 return IPR_RC_JOB_RETURN;
6829 * ipr_init_res_table - Initialize the resource table
6830 * @ipr_cmd: ipr command struct
6832 * This function looks through the existing resource table, comparing
6833 * it with the config table. This function will take care of old/new
6834 * devices and schedule adding/removing them from the mid-layer
6838 * IPR_RC_JOB_CONTINUE
6840 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6842 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6843 struct ipr_resource_entry *res, *temp;
6844 struct ipr_config_table_entry_wrapper cfgtew;
6845 int entries, found, flag, i;
6850 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6852 flag = ioa_cfg->u.cfg_table->hdr.flags;
6854 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6855 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6857 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6858 list_move_tail(&res->queue, &old_res);
6861 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6863 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6865 for (i = 0; i < entries; i++) {
6867 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6869 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6872 list_for_each_entry_safe(res, temp, &old_res, queue) {
6873 if (ipr_is_same_device(res, &cfgtew)) {
6874 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6881 if (list_empty(&ioa_cfg->free_res_q)) {
6882 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6887 res = list_entry(ioa_cfg->free_res_q.next,
6888 struct ipr_resource_entry, queue);
6889 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6890 ipr_init_res_entry(res, &cfgtew);
6892 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6893 res->sdev->allow_restart = 1;
6896 ipr_update_res_entry(res, &cfgtew);
6899 list_for_each_entry_safe(res, temp, &old_res, queue) {
6901 res->del_from_ml = 1;
6902 res->res_handle = IPR_INVALID_RES_HANDLE;
6903 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6907 list_for_each_entry_safe(res, temp, &old_res, queue) {
6908 ipr_clear_res_target(res);
6909 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6912 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6913 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6915 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6918 return IPR_RC_JOB_CONTINUE;
6922 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6923 * @ipr_cmd: ipr command struct
6925 * This function sends a Query IOA Configuration command
6926 * to the adapter to retrieve the IOA configuration table.
6931 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6933 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6934 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6935 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6936 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6939 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6940 ioa_cfg->dual_raid = 1;
6941 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6942 ucode_vpd->major_release, ucode_vpd->card_type,
6943 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6944 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6945 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6947 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6948 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6949 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6950 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6952 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6953 IPR_IOADL_FLAGS_READ_LAST);
6955 ipr_cmd->job_step = ipr_init_res_table;
6957 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6960 return IPR_RC_JOB_RETURN;
6964 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6965 * @ipr_cmd: ipr command struct
6967 * This utility function sends an inquiry to the adapter.
6972 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6973 dma_addr_t dma_addr, u8 xfer_len)
6975 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6978 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6979 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6981 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6982 ioarcb->cmd_pkt.cdb[1] = flags;
6983 ioarcb->cmd_pkt.cdb[2] = page;
6984 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6986 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6988 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6993 * ipr_inquiry_page_supported - Is the given inquiry page supported
6994 * @page0: inquiry page 0 buffer
6997 * This function determines if the specified inquiry page is supported.
7000 * 1 if page is supported / 0 if not
7002 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7006 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7007 if (page0->page[i] == page)
7014 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7015 * @ipr_cmd: ipr command struct
7017 * This function sends a Page 0xD0 inquiry to the adapter
7018 * to retrieve adapter capabilities.
7021 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7023 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7025 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7026 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7027 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7030 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7031 memset(cap, 0, sizeof(*cap));
7033 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7034 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7035 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7036 sizeof(struct ipr_inquiry_cap));
7037 return IPR_RC_JOB_RETURN;
7041 return IPR_RC_JOB_CONTINUE;
7045 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7046 * @ipr_cmd: ipr command struct
7048 * This function sends a Page 3 inquiry to the adapter
7049 * to retrieve software VPD information.
7052 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7054 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7056 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7060 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7062 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7063 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7064 sizeof(struct ipr_inquiry_page3));
7067 return IPR_RC_JOB_RETURN;
7071 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7072 * @ipr_cmd: ipr command struct
7074 * This function sends a Page 0 inquiry to the adapter
7075 * to retrieve supported inquiry pages.
7078 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7080 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7082 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7087 /* Grab the type out of the VPD and store it away */
7088 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7090 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7092 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7094 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7095 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7096 sizeof(struct ipr_inquiry_page0));
7099 return IPR_RC_JOB_RETURN;
7103 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7104 * @ipr_cmd: ipr command struct
7106 * This function sends a standard inquiry to the adapter.
7111 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7113 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7116 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7118 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7119 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7120 sizeof(struct ipr_ioa_vpd));
7123 return IPR_RC_JOB_RETURN;
7127 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7128 * @ipr_cmd: ipr command struct
7130 * This function send an Identify Host Request Response Queue
7131 * command to establish the HRRQ with the adapter.
7136 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7138 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7139 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7142 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7144 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7145 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7147 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7149 ioarcb->cmd_pkt.cdb[1] = 0x1;
7150 ioarcb->cmd_pkt.cdb[2] =
7151 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7152 ioarcb->cmd_pkt.cdb[3] =
7153 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7154 ioarcb->cmd_pkt.cdb[4] =
7155 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7156 ioarcb->cmd_pkt.cdb[5] =
7157 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7158 ioarcb->cmd_pkt.cdb[7] =
7159 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7160 ioarcb->cmd_pkt.cdb[8] =
7161 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7163 if (ioa_cfg->sis64) {
7164 ioarcb->cmd_pkt.cdb[10] =
7165 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7166 ioarcb->cmd_pkt.cdb[11] =
7167 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7168 ioarcb->cmd_pkt.cdb[12] =
7169 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7170 ioarcb->cmd_pkt.cdb[13] =
7171 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7174 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7176 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7179 return IPR_RC_JOB_RETURN;
7183 * ipr_reset_timer_done - Adapter reset timer function
7184 * @ipr_cmd: ipr command struct
7186 * Description: This function is used in adapter reset processing
7187 * for timing events. If the reset_cmd pointer in the IOA
7188 * config struct is not this adapter's we are doing nested
7189 * resets and fail_all_ops will take care of freeing the
7195 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7197 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7198 unsigned long lock_flags = 0;
7200 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7202 if (ioa_cfg->reset_cmd == ipr_cmd) {
7203 list_del(&ipr_cmd->queue);
7204 ipr_cmd->done(ipr_cmd);
7207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7211 * ipr_reset_start_timer - Start a timer for adapter reset job
7212 * @ipr_cmd: ipr command struct
7213 * @timeout: timeout value
7215 * Description: This function is used in adapter reset processing
7216 * for timing events. If the reset_cmd pointer in the IOA
7217 * config struct is not this adapter's we are doing nested
7218 * resets and fail_all_ops will take care of freeing the
7224 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7225 unsigned long timeout)
7227 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7228 ipr_cmd->done = ipr_reset_ioa_job;
7230 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7231 ipr_cmd->timer.expires = jiffies + timeout;
7232 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7233 add_timer(&ipr_cmd->timer);
7237 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7238 * @ioa_cfg: ioa cfg struct
7243 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7245 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7247 /* Initialize Host RRQ pointers */
7248 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7249 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7250 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7251 ioa_cfg->toggle_bit = 1;
7253 /* Zero out config table */
7254 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7258 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7259 * @ipr_cmd: ipr command struct
7262 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7264 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7266 unsigned long stage, stage_time;
7268 volatile u32 int_reg;
7269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7272 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7273 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7274 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7276 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7278 /* sanity check the stage_time value */
7279 if (stage_time == 0)
7280 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7281 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7282 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7283 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7284 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7286 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7287 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7288 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7289 stage_time = ioa_cfg->transop_timeout;
7290 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7291 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7292 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7293 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7294 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7295 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7296 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7297 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7298 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7299 return IPR_RC_JOB_CONTINUE;
7303 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7304 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7305 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7306 ipr_cmd->done = ipr_reset_ioa_job;
7307 add_timer(&ipr_cmd->timer);
7308 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7310 return IPR_RC_JOB_RETURN;
7314 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7315 * @ipr_cmd: ipr command struct
7317 * This function reinitializes some control blocks and
7318 * enables destructive diagnostics on the adapter.
7323 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7326 volatile u32 int_reg;
7327 volatile u64 maskval;
7330 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7331 ipr_init_ioa_mem(ioa_cfg);
7333 ioa_cfg->allow_interrupts = 1;
7334 if (ioa_cfg->sis64) {
7335 /* Set the adapter to the correct endian mode. */
7336 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7337 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7340 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7342 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7343 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7344 ioa_cfg->regs.clr_interrupt_mask_reg32);
7345 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7346 return IPR_RC_JOB_CONTINUE;
7349 /* Enable destructive diagnostics on IOA */
7350 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7352 if (ioa_cfg->sis64) {
7353 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7354 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7355 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7357 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7361 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7363 if (ioa_cfg->sis64) {
7364 ipr_cmd->job_step = ipr_reset_next_stage;
7365 return IPR_RC_JOB_CONTINUE;
7368 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7369 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * 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);
7376 return IPR_RC_JOB_RETURN;
7380 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7381 * @ipr_cmd: ipr command struct
7383 * This function is invoked when an adapter dump has run out
7384 * of processing time.
7387 * IPR_RC_JOB_CONTINUE
7389 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7391 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7393 if (ioa_cfg->sdt_state == GET_DUMP)
7394 ioa_cfg->sdt_state = ABORT_DUMP;
7396 ipr_cmd->job_step = ipr_reset_alert;
7398 return IPR_RC_JOB_CONTINUE;
7402 * ipr_unit_check_no_data - Log a unit check/no data error log
7403 * @ioa_cfg: ioa config struct
7405 * Logs an error indicating the adapter unit checked, but for some
7406 * reason, we were unable to fetch the unit check buffer.
7411 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7413 ioa_cfg->errors_logged++;
7414 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7418 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7419 * @ioa_cfg: ioa config struct
7421 * Fetches the unit check buffer from the adapter by clocking the data
7422 * through the mailbox register.
7427 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7429 unsigned long mailbox;
7430 struct ipr_hostrcb *hostrcb;
7431 struct ipr_uc_sdt sdt;
7435 mailbox = readl(ioa_cfg->ioa_mailbox);
7437 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7438 ipr_unit_check_no_data(ioa_cfg);
7442 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7443 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7444 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7446 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7447 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7448 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7449 ipr_unit_check_no_data(ioa_cfg);
7453 /* Find length of the first sdt entry (UC buffer) */
7454 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7455 length = be32_to_cpu(sdt.entry[0].end_token);
7457 length = (be32_to_cpu(sdt.entry[0].end_token) -
7458 be32_to_cpu(sdt.entry[0].start_token)) &
7459 IPR_FMT2_MBX_ADDR_MASK;
7461 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7462 struct ipr_hostrcb, queue);
7463 list_del(&hostrcb->queue);
7464 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7466 rc = ipr_get_ldump_data_section(ioa_cfg,
7467 be32_to_cpu(sdt.entry[0].start_token),
7468 (__be32 *)&hostrcb->hcam,
7469 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7472 ipr_handle_log_data(ioa_cfg, hostrcb);
7473 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7474 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7475 ioa_cfg->sdt_state == GET_DUMP)
7476 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7478 ipr_unit_check_no_data(ioa_cfg);
7480 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7484 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7485 * @ipr_cmd: ipr command struct
7487 * Description: This function will call to get the unit check buffer.
7492 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7494 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7497 ioa_cfg->ioa_unit_checked = 0;
7498 ipr_get_unit_check_buffer(ioa_cfg);
7499 ipr_cmd->job_step = ipr_reset_alert;
7500 ipr_reset_start_timer(ipr_cmd, 0);
7503 return IPR_RC_JOB_RETURN;
7507 * ipr_reset_restore_cfg_space - Restore PCI config space.
7508 * @ipr_cmd: ipr command struct
7510 * Description: This function restores the saved PCI config space of
7511 * the adapter, fails all outstanding ops back to the callers, and
7512 * fetches the dump/unit check if applicable to this reset.
7515 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7517 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7519 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7520 volatile u32 int_reg;
7523 ioa_cfg->pdev->state_saved = true;
7524 pci_restore_state(ioa_cfg->pdev);
7526 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7527 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7528 return IPR_RC_JOB_CONTINUE;
7531 ipr_fail_all_ops(ioa_cfg);
7533 if (ioa_cfg->sis64) {
7534 /* Set the adapter to the correct endian mode. */
7535 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7536 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7539 if (ioa_cfg->ioa_unit_checked) {
7540 if (ioa_cfg->sis64) {
7541 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7542 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7543 return IPR_RC_JOB_RETURN;
7545 ioa_cfg->ioa_unit_checked = 0;
7546 ipr_get_unit_check_buffer(ioa_cfg);
7547 ipr_cmd->job_step = ipr_reset_alert;
7548 ipr_reset_start_timer(ipr_cmd, 0);
7549 return IPR_RC_JOB_RETURN;
7553 if (ioa_cfg->in_ioa_bringdown) {
7554 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7556 ipr_cmd->job_step = ipr_reset_enable_ioa;
7558 if (GET_DUMP == ioa_cfg->sdt_state) {
7559 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7560 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7561 schedule_work(&ioa_cfg->work_q);
7562 return IPR_RC_JOB_RETURN;
7567 return IPR_RC_JOB_CONTINUE;
7571 * ipr_reset_bist_done - BIST has completed on the adapter.
7572 * @ipr_cmd: ipr command struct
7574 * Description: Unblock config space and resume the reset process.
7577 * IPR_RC_JOB_CONTINUE
7579 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7582 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7583 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7585 return IPR_RC_JOB_CONTINUE;
7589 * ipr_reset_start_bist - Run BIST on the adapter.
7590 * @ipr_cmd: ipr command struct
7592 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7595 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7597 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7599 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7600 int rc = PCIBIOS_SUCCESSFUL;
7603 pci_block_user_cfg_access(ioa_cfg->pdev);
7605 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7606 writel(IPR_UPROCI_SIS64_START_BIST,
7607 ioa_cfg->regs.set_uproc_interrupt_reg32);
7609 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7611 if (rc == PCIBIOS_SUCCESSFUL) {
7612 ipr_cmd->job_step = ipr_reset_bist_done;
7613 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7614 rc = IPR_RC_JOB_RETURN;
7616 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7617 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7618 rc = IPR_RC_JOB_CONTINUE;
7626 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7627 * @ipr_cmd: ipr command struct
7629 * Description: This clears PCI reset to the adapter and delays two seconds.
7634 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7637 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7638 ipr_cmd->job_step = ipr_reset_bist_done;
7639 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7641 return IPR_RC_JOB_RETURN;
7645 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7646 * @ipr_cmd: ipr command struct
7648 * Description: This asserts PCI reset to the adapter.
7653 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7655 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7656 struct pci_dev *pdev = ioa_cfg->pdev;
7659 pci_block_user_cfg_access(pdev);
7660 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7661 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7662 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7664 return IPR_RC_JOB_RETURN;
7668 * ipr_reset_allowed - Query whether or not IOA can be reset
7669 * @ioa_cfg: ioa config struct
7672 * 0 if reset not allowed / non-zero if reset is allowed
7674 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7676 volatile u32 temp_reg;
7678 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7679 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7683 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7684 * @ipr_cmd: ipr command struct
7686 * Description: This function waits for adapter permission to run BIST,
7687 * then runs BIST. If the adapter does not give permission after a
7688 * reasonable time, we will reset the adapter anyway. The impact of
7689 * resetting the adapter without warning the adapter is the risk of
7690 * losing the persistent error log on the adapter. If the adapter is
7691 * reset while it is writing to the flash on the adapter, the flash
7692 * segment will have bad ECC and be zeroed.
7695 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7697 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7699 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7700 int rc = IPR_RC_JOB_RETURN;
7702 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7703 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7704 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7706 ipr_cmd->job_step = ioa_cfg->reset;
7707 rc = IPR_RC_JOB_CONTINUE;
7714 * ipr_reset_alert - Alert the adapter of a pending reset
7715 * @ipr_cmd: ipr command struct
7717 * Description: This function alerts the adapter that it will be reset.
7718 * If memory space is not currently enabled, proceed directly
7719 * to running BIST on the adapter. The timer must always be started
7720 * so we guarantee we do not run BIST from ipr_isr.
7725 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7727 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7732 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7734 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7735 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7736 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7737 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7739 ipr_cmd->job_step = ioa_cfg->reset;
7742 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7743 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7746 return IPR_RC_JOB_RETURN;
7750 * ipr_reset_ucode_download_done - Microcode download completion
7751 * @ipr_cmd: ipr command struct
7753 * Description: This function unmaps the microcode download buffer.
7756 * IPR_RC_JOB_CONTINUE
7758 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7761 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7763 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7764 sglist->num_sg, DMA_TO_DEVICE);
7766 ipr_cmd->job_step = ipr_reset_alert;
7767 return IPR_RC_JOB_CONTINUE;
7771 * ipr_reset_ucode_download - Download microcode to the adapter
7772 * @ipr_cmd: ipr command struct
7774 * Description: This function checks to see if it there is microcode
7775 * to download to the adapter. If there is, a download is performed.
7778 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7780 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7783 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7786 ipr_cmd->job_step = ipr_reset_alert;
7789 return IPR_RC_JOB_CONTINUE;
7791 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7792 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7793 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7794 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7795 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7796 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7797 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7800 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7802 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7803 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7805 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7806 IPR_WRITE_BUFFER_TIMEOUT);
7809 return IPR_RC_JOB_RETURN;
7813 * ipr_reset_shutdown_ioa - Shutdown the adapter
7814 * @ipr_cmd: ipr command struct
7816 * Description: This function issues an adapter shutdown of the
7817 * specified type to the specified adapter as part of the
7818 * adapter reset job.
7821 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7823 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7826 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7827 unsigned long timeout;
7828 int rc = IPR_RC_JOB_CONTINUE;
7831 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7832 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7833 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7834 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7835 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7837 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7838 timeout = IPR_SHUTDOWN_TIMEOUT;
7839 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7840 timeout = IPR_INTERNAL_TIMEOUT;
7841 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7842 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7844 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7846 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7848 rc = IPR_RC_JOB_RETURN;
7849 ipr_cmd->job_step = ipr_reset_ucode_download;
7851 ipr_cmd->job_step = ipr_reset_alert;
7858 * ipr_reset_ioa_job - Adapter reset job
7859 * @ipr_cmd: ipr command struct
7861 * Description: This function is the job router for the adapter reset job.
7866 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7869 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7872 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7874 if (ioa_cfg->reset_cmd != ipr_cmd) {
7876 * We are doing nested adapter resets and this is
7877 * not the current reset job.
7879 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7883 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7884 rc = ipr_cmd->job_step_failed(ipr_cmd);
7885 if (rc == IPR_RC_JOB_RETURN)
7889 ipr_reinit_ipr_cmnd(ipr_cmd);
7890 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7891 rc = ipr_cmd->job_step(ipr_cmd);
7892 } while(rc == IPR_RC_JOB_CONTINUE);
7896 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7897 * @ioa_cfg: ioa config struct
7898 * @job_step: first job step of reset job
7899 * @shutdown_type: shutdown type
7901 * Description: This function will initiate the reset of the given adapter
7902 * starting at the selected job step.
7903 * If the caller needs to wait on the completion of the reset,
7904 * the caller must sleep on the reset_wait_q.
7909 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7910 int (*job_step) (struct ipr_cmnd *),
7911 enum ipr_shutdown_type shutdown_type)
7913 struct ipr_cmnd *ipr_cmd;
7915 ioa_cfg->in_reset_reload = 1;
7916 ioa_cfg->allow_cmds = 0;
7917 scsi_block_requests(ioa_cfg->host);
7919 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7920 ioa_cfg->reset_cmd = ipr_cmd;
7921 ipr_cmd->job_step = job_step;
7922 ipr_cmd->u.shutdown_type = shutdown_type;
7924 ipr_reset_ioa_job(ipr_cmd);
7928 * ipr_initiate_ioa_reset - Initiate an adapter reset
7929 * @ioa_cfg: ioa config struct
7930 * @shutdown_type: shutdown type
7932 * Description: This function will initiate the reset of the given adapter.
7933 * If the caller needs to wait on the completion of the reset,
7934 * the caller must sleep on the reset_wait_q.
7939 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7940 enum ipr_shutdown_type shutdown_type)
7942 if (ioa_cfg->ioa_is_dead)
7945 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7946 ioa_cfg->sdt_state = ABORT_DUMP;
7948 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7949 dev_err(&ioa_cfg->pdev->dev,
7950 "IOA taken offline - error recovery failed\n");
7952 ioa_cfg->reset_retries = 0;
7953 ioa_cfg->ioa_is_dead = 1;
7955 if (ioa_cfg->in_ioa_bringdown) {
7956 ioa_cfg->reset_cmd = NULL;
7957 ioa_cfg->in_reset_reload = 0;
7958 ipr_fail_all_ops(ioa_cfg);
7959 wake_up_all(&ioa_cfg->reset_wait_q);
7961 spin_unlock_irq(ioa_cfg->host->host_lock);
7962 scsi_unblock_requests(ioa_cfg->host);
7963 spin_lock_irq(ioa_cfg->host->host_lock);
7966 ioa_cfg->in_ioa_bringdown = 1;
7967 shutdown_type = IPR_SHUTDOWN_NONE;
7971 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7976 * ipr_reset_freeze - Hold off all I/O activity
7977 * @ipr_cmd: ipr command struct
7979 * Description: If the PCI slot is frozen, hold off all I/O
7980 * activity; then, as soon as the slot is available again,
7981 * initiate an adapter reset.
7983 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7985 /* Disallow new interrupts, avoid loop */
7986 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7987 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7988 ipr_cmd->done = ipr_reset_ioa_job;
7989 return IPR_RC_JOB_RETURN;
7993 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7994 * @pdev: PCI device struct
7996 * Description: This routine is called to tell us that the PCI bus
7997 * is down. Can't do anything here, except put the device driver
7998 * into a holding pattern, waiting for the PCI bus to come back.
8000 static void ipr_pci_frozen(struct pci_dev *pdev)
8002 unsigned long flags = 0;
8003 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8005 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8006 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8011 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8012 * @pdev: PCI device struct
8014 * Description: This routine is called by the pci error recovery
8015 * code after the PCI slot has been reset, just before we
8016 * should resume normal operations.
8018 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8020 unsigned long flags = 0;
8021 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8023 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8024 if (ioa_cfg->needs_warm_reset)
8025 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8027 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8029 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8030 return PCI_ERS_RESULT_RECOVERED;
8034 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8035 * @pdev: PCI device struct
8037 * Description: This routine is called when the PCI bus has
8038 * permanently failed.
8040 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8042 unsigned long flags = 0;
8043 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8045 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8046 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8047 ioa_cfg->sdt_state = ABORT_DUMP;
8048 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8049 ioa_cfg->in_ioa_bringdown = 1;
8050 ioa_cfg->allow_cmds = 0;
8051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8056 * ipr_pci_error_detected - Called when a PCI error is detected.
8057 * @pdev: PCI device struct
8058 * @state: PCI channel state
8060 * Description: Called when a PCI error is detected.
8063 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8065 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8066 pci_channel_state_t state)
8069 case pci_channel_io_frozen:
8070 ipr_pci_frozen(pdev);
8071 return PCI_ERS_RESULT_NEED_RESET;
8072 case pci_channel_io_perm_failure:
8073 ipr_pci_perm_failure(pdev);
8074 return PCI_ERS_RESULT_DISCONNECT;
8079 return PCI_ERS_RESULT_NEED_RESET;
8083 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8084 * @ioa_cfg: ioa cfg struct
8086 * Description: This is the second phase of adapter intialization
8087 * This function takes care of initilizing the adapter to the point
8088 * where it can accept new commands.
8091 * 0 on success / -EIO on failure
8093 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8096 unsigned long host_lock_flags = 0;
8099 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8100 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8101 if (ioa_cfg->needs_hard_reset) {
8102 ioa_cfg->needs_hard_reset = 0;
8103 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8105 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8109 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8110 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8112 if (ioa_cfg->ioa_is_dead) {
8114 } else if (ipr_invalid_adapter(ioa_cfg)) {
8118 dev_err(&ioa_cfg->pdev->dev,
8119 "Adapter not supported in this hardware configuration.\n");
8122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8129 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8130 * @ioa_cfg: ioa config struct
8135 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8139 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8140 if (ioa_cfg->ipr_cmnd_list[i])
8141 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8142 ioa_cfg->ipr_cmnd_list[i],
8143 ioa_cfg->ipr_cmnd_list_dma[i]);
8145 ioa_cfg->ipr_cmnd_list[i] = NULL;
8148 if (ioa_cfg->ipr_cmd_pool)
8149 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8151 ioa_cfg->ipr_cmd_pool = NULL;
8155 * ipr_free_mem - Frees memory allocated for an adapter
8156 * @ioa_cfg: ioa cfg struct
8161 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8165 kfree(ioa_cfg->res_entries);
8166 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8167 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8168 ipr_free_cmd_blks(ioa_cfg);
8169 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8170 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8171 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8172 ioa_cfg->u.cfg_table,
8173 ioa_cfg->cfg_table_dma);
8175 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8176 pci_free_consistent(ioa_cfg->pdev,
8177 sizeof(struct ipr_hostrcb),
8178 ioa_cfg->hostrcb[i],
8179 ioa_cfg->hostrcb_dma[i]);
8182 ipr_free_dump(ioa_cfg);
8183 kfree(ioa_cfg->trace);
8187 * ipr_free_all_resources - Free all allocated resources for an adapter.
8188 * @ipr_cmd: ipr command struct
8190 * This function frees all allocated resources for the
8191 * specified adapter.
8196 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8198 struct pci_dev *pdev = ioa_cfg->pdev;
8201 free_irq(pdev->irq, ioa_cfg);
8202 pci_disable_msi(pdev);
8203 iounmap(ioa_cfg->hdw_dma_regs);
8204 pci_release_regions(pdev);
8205 ipr_free_mem(ioa_cfg);
8206 scsi_host_put(ioa_cfg->host);
8207 pci_disable_device(pdev);
8212 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8213 * @ioa_cfg: ioa config struct
8216 * 0 on success / -ENOMEM on allocation failure
8218 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8220 struct ipr_cmnd *ipr_cmd;
8221 struct ipr_ioarcb *ioarcb;
8222 dma_addr_t dma_addr;
8225 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8226 sizeof(struct ipr_cmnd), 16, 0);
8228 if (!ioa_cfg->ipr_cmd_pool)
8231 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8232 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8235 ipr_free_cmd_blks(ioa_cfg);
8239 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8240 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8241 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8243 ioarcb = &ipr_cmd->ioarcb;
8244 ipr_cmd->dma_addr = dma_addr;
8246 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8248 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8250 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8251 if (ioa_cfg->sis64) {
8252 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8253 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8254 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8255 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8257 ioarcb->write_ioadl_addr =
8258 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8259 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8260 ioarcb->ioasa_host_pci_addr =
8261 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8263 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8264 ipr_cmd->cmd_index = i;
8265 ipr_cmd->ioa_cfg = ioa_cfg;
8266 ipr_cmd->sense_buffer_dma = dma_addr +
8267 offsetof(struct ipr_cmnd, sense_buffer);
8269 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8276 * ipr_alloc_mem - Allocate memory for an adapter
8277 * @ioa_cfg: ioa config struct
8280 * 0 on success / non-zero for error
8282 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8284 struct pci_dev *pdev = ioa_cfg->pdev;
8285 int i, rc = -ENOMEM;
8288 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8289 ioa_cfg->max_devs_supported, GFP_KERNEL);
8291 if (!ioa_cfg->res_entries)
8294 if (ioa_cfg->sis64) {
8295 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8296 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8297 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8298 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8299 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8300 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8303 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8304 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8305 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8308 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8309 sizeof(struct ipr_misc_cbs),
8310 &ioa_cfg->vpd_cbs_dma);
8312 if (!ioa_cfg->vpd_cbs)
8313 goto out_free_res_entries;
8315 if (ipr_alloc_cmd_blks(ioa_cfg))
8316 goto out_free_vpd_cbs;
8318 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8319 sizeof(u32) * IPR_NUM_CMD_BLKS,
8320 &ioa_cfg->host_rrq_dma);
8322 if (!ioa_cfg->host_rrq)
8323 goto out_ipr_free_cmd_blocks;
8325 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8326 ioa_cfg->cfg_table_size,
8327 &ioa_cfg->cfg_table_dma);
8329 if (!ioa_cfg->u.cfg_table)
8330 goto out_free_host_rrq;
8332 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8333 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8334 sizeof(struct ipr_hostrcb),
8335 &ioa_cfg->hostrcb_dma[i]);
8337 if (!ioa_cfg->hostrcb[i])
8338 goto out_free_hostrcb_dma;
8340 ioa_cfg->hostrcb[i]->hostrcb_dma =
8341 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8342 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8343 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8346 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8347 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8349 if (!ioa_cfg->trace)
8350 goto out_free_hostrcb_dma;
8357 out_free_hostrcb_dma:
8359 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8360 ioa_cfg->hostrcb[i],
8361 ioa_cfg->hostrcb_dma[i]);
8363 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8364 ioa_cfg->u.cfg_table,
8365 ioa_cfg->cfg_table_dma);
8367 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8368 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8369 out_ipr_free_cmd_blocks:
8370 ipr_free_cmd_blks(ioa_cfg);
8372 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8373 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8374 out_free_res_entries:
8375 kfree(ioa_cfg->res_entries);
8380 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8381 * @ioa_cfg: ioa config struct
8386 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8390 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8391 ioa_cfg->bus_attr[i].bus = i;
8392 ioa_cfg->bus_attr[i].qas_enabled = 0;
8393 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8394 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8395 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8397 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8402 * ipr_init_ioa_cfg - Initialize IOA config struct
8403 * @ioa_cfg: ioa config struct
8404 * @host: scsi host struct
8405 * @pdev: PCI dev struct
8410 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8411 struct Scsi_Host *host, struct pci_dev *pdev)
8413 const struct ipr_interrupt_offsets *p;
8414 struct ipr_interrupts *t;
8417 ioa_cfg->host = host;
8418 ioa_cfg->pdev = pdev;
8419 ioa_cfg->log_level = ipr_log_level;
8420 ioa_cfg->doorbell = IPR_DOORBELL;
8421 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8422 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8423 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8424 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8425 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8426 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8427 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8428 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8430 INIT_LIST_HEAD(&ioa_cfg->free_q);
8431 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8432 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8433 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8434 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8435 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8436 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8437 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8438 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8439 ioa_cfg->sdt_state = INACTIVE;
8441 ipr_initialize_bus_attr(ioa_cfg);
8442 ioa_cfg->max_devs_supported = ipr_max_devs;
8444 if (ioa_cfg->sis64) {
8445 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8446 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8447 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8448 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8450 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8451 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8452 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8453 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8455 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8456 host->unique_id = host->host_no;
8457 host->max_cmd_len = IPR_MAX_CDB_LEN;
8458 pci_set_drvdata(pdev, ioa_cfg);
8460 p = &ioa_cfg->chip_cfg->regs;
8462 base = ioa_cfg->hdw_dma_regs;
8464 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8465 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8466 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8467 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8468 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8469 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8470 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8471 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8472 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8473 t->ioarrin_reg = base + p->ioarrin_reg;
8474 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8475 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8476 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8477 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8478 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8479 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8481 if (ioa_cfg->sis64) {
8482 t->init_feedback_reg = base + p->init_feedback_reg;
8483 t->dump_addr_reg = base + p->dump_addr_reg;
8484 t->dump_data_reg = base + p->dump_data_reg;
8485 t->endian_swap_reg = base + p->endian_swap_reg;
8490 * ipr_get_chip_info - Find adapter chip information
8491 * @dev_id: PCI device id struct
8494 * ptr to chip information on success / NULL on failure
8496 static const struct ipr_chip_t * __devinit
8497 ipr_get_chip_info(const struct pci_device_id *dev_id)
8501 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8502 if (ipr_chip[i].vendor == dev_id->vendor &&
8503 ipr_chip[i].device == dev_id->device)
8504 return &ipr_chip[i];
8509 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8510 * @pdev: PCI device struct
8512 * Description: Simply set the msi_received flag to 1 indicating that
8513 * Message Signaled Interrupts are supported.
8516 * 0 on success / non-zero on failure
8518 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8520 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8521 unsigned long lock_flags = 0;
8522 irqreturn_t rc = IRQ_HANDLED;
8524 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8526 ioa_cfg->msi_received = 1;
8527 wake_up(&ioa_cfg->msi_wait_q);
8529 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8534 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8535 * @pdev: PCI device struct
8537 * Description: The return value from pci_enable_msi() can not always be
8538 * trusted. This routine sets up and initiates a test interrupt to determine
8539 * if the interrupt is received via the ipr_test_intr() service routine.
8540 * If the tests fails, the driver will fall back to LSI.
8543 * 0 on success / non-zero on failure
8545 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8546 struct pci_dev *pdev)
8549 volatile u32 int_reg;
8550 unsigned long lock_flags = 0;
8554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8555 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8556 ioa_cfg->msi_received = 0;
8557 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8558 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8559 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8560 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8562 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8564 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8566 } else if (ipr_debug)
8567 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8569 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8570 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8571 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8572 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8574 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8575 if (!ioa_cfg->msi_received) {
8576 /* MSI test failed */
8577 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8579 } else if (ipr_debug)
8580 dev_info(&pdev->dev, "MSI test succeeded.\n");
8582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8584 free_irq(pdev->irq, ioa_cfg);
8592 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8593 * @pdev: PCI device struct
8594 * @dev_id: PCI device id struct
8597 * 0 on success / non-zero on failure
8599 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8600 const struct pci_device_id *dev_id)
8602 struct ipr_ioa_cfg *ioa_cfg;
8603 struct Scsi_Host *host;
8604 unsigned long ipr_regs_pci;
8605 void __iomem *ipr_regs;
8606 int rc = PCIBIOS_SUCCESSFUL;
8607 volatile u32 mask, uproc, interrupts;
8611 if ((rc = pci_enable_device(pdev))) {
8612 dev_err(&pdev->dev, "Cannot enable adapter\n");
8616 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8618 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8621 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8626 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8627 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8628 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8629 sata_port_info.flags, &ipr_sata_ops);
8631 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8633 if (!ioa_cfg->ipr_chip) {
8634 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8635 dev_id->vendor, dev_id->device);
8636 goto out_scsi_host_put;
8639 /* set SIS 32 or SIS 64 */
8640 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8641 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8643 if (ipr_transop_timeout)
8644 ioa_cfg->transop_timeout = ipr_transop_timeout;
8645 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8646 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8648 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8650 ioa_cfg->revid = pdev->revision;
8652 ipr_regs_pci = pci_resource_start(pdev, 0);
8654 rc = pci_request_regions(pdev, IPR_NAME);
8657 "Couldn't register memory range of registers\n");
8658 goto out_scsi_host_put;
8661 ipr_regs = pci_ioremap_bar(pdev, 0);
8665 "Couldn't map memory range of registers\n");
8667 goto out_release_regions;
8670 ioa_cfg->hdw_dma_regs = ipr_regs;
8671 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8672 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8674 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8676 pci_set_master(pdev);
8678 if (ioa_cfg->sis64) {
8679 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8681 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8682 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8686 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8689 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8693 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8694 ioa_cfg->chip_cfg->cache_line_size);
8696 if (rc != PCIBIOS_SUCCESSFUL) {
8697 dev_err(&pdev->dev, "Write of cache line size failed\n");
8702 /* Enable MSI style interrupts if they are supported. */
8703 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8704 rc = ipr_test_msi(ioa_cfg, pdev);
8705 if (rc == -EOPNOTSUPP)
8706 pci_disable_msi(pdev);
8708 goto out_msi_disable;
8710 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8711 } else if (ipr_debug)
8712 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8714 /* Save away PCI config space for use following IOA reset */
8715 rc = pci_save_state(pdev);
8717 if (rc != PCIBIOS_SUCCESSFUL) {
8718 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8723 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8726 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8730 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8731 + ((sizeof(struct ipr_config_table_entry64)
8732 * ioa_cfg->max_devs_supported)));
8734 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8735 + ((sizeof(struct ipr_config_table_entry)
8736 * ioa_cfg->max_devs_supported)));
8738 rc = ipr_alloc_mem(ioa_cfg);
8741 "Couldn't allocate enough memory for device driver!\n");
8746 * If HRRQ updated interrupt is not masked, or reset alert is set,
8747 * the card is in an unknown state and needs a hard reset
8749 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8750 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8751 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8752 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8753 ioa_cfg->needs_hard_reset = 1;
8754 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8755 ioa_cfg->needs_hard_reset = 1;
8756 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8757 ioa_cfg->ioa_unit_checked = 1;
8759 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8760 rc = request_irq(pdev->irq, ipr_isr,
8761 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8765 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8770 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8771 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8772 ioa_cfg->needs_warm_reset = 1;
8773 ioa_cfg->reset = ipr_reset_slot_reset;
8775 ioa_cfg->reset = ipr_reset_start_bist;
8777 spin_lock(&ipr_driver_lock);
8778 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8779 spin_unlock(&ipr_driver_lock);
8786 ipr_free_mem(ioa_cfg);
8790 pci_disable_msi(pdev);
8791 out_release_regions:
8792 pci_release_regions(pdev);
8794 scsi_host_put(host);
8796 pci_disable_device(pdev);
8801 * ipr_scan_vsets - Scans for VSET devices
8802 * @ioa_cfg: ioa config struct
8804 * Description: Since the VSET resources do not follow SAM in that we can have
8805 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8810 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8814 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8815 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8816 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8820 * ipr_initiate_ioa_bringdown - Bring down an adapter
8821 * @ioa_cfg: ioa config struct
8822 * @shutdown_type: shutdown type
8824 * Description: This function will initiate bringing down the adapter.
8825 * This consists of issuing an IOA shutdown to the adapter
8826 * to flush the cache, and running BIST.
8827 * If the caller needs to wait on the completion of the reset,
8828 * the caller must sleep on the reset_wait_q.
8833 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8834 enum ipr_shutdown_type shutdown_type)
8837 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8838 ioa_cfg->sdt_state = ABORT_DUMP;
8839 ioa_cfg->reset_retries = 0;
8840 ioa_cfg->in_ioa_bringdown = 1;
8841 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8846 * __ipr_remove - Remove a single adapter
8847 * @pdev: pci device struct
8849 * Adapter hot plug remove entry point.
8854 static void __ipr_remove(struct pci_dev *pdev)
8856 unsigned long host_lock_flags = 0;
8857 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8860 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8861 while(ioa_cfg->in_reset_reload) {
8862 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8863 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8864 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8867 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8870 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8871 flush_work_sync(&ioa_cfg->work_q);
8872 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8874 spin_lock(&ipr_driver_lock);
8875 list_del(&ioa_cfg->queue);
8876 spin_unlock(&ipr_driver_lock);
8878 if (ioa_cfg->sdt_state == ABORT_DUMP)
8879 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8880 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8882 ipr_free_all_resources(ioa_cfg);
8888 * ipr_remove - IOA hot plug remove entry point
8889 * @pdev: pci device struct
8891 * Adapter hot plug remove entry point.
8896 static void __devexit ipr_remove(struct pci_dev *pdev)
8898 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8902 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8904 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8906 scsi_remove_host(ioa_cfg->host);
8914 * ipr_probe - Adapter hot plug add entry point
8917 * 0 on success / non-zero on failure
8919 static int __devinit ipr_probe(struct pci_dev *pdev,
8920 const struct pci_device_id *dev_id)
8922 struct ipr_ioa_cfg *ioa_cfg;
8925 rc = ipr_probe_ioa(pdev, dev_id);
8930 ioa_cfg = pci_get_drvdata(pdev);
8931 rc = ipr_probe_ioa_part2(ioa_cfg);
8938 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8945 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8949 scsi_remove_host(ioa_cfg->host);
8954 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8958 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8960 scsi_remove_host(ioa_cfg->host);
8965 scsi_scan_host(ioa_cfg->host);
8966 ipr_scan_vsets(ioa_cfg);
8967 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8968 ioa_cfg->allow_ml_add_del = 1;
8969 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8970 schedule_work(&ioa_cfg->work_q);
8975 * ipr_shutdown - Shutdown handler.
8976 * @pdev: pci device struct
8978 * This function is invoked upon system shutdown/reboot. It will issue
8979 * an adapter shutdown to the adapter to flush the write cache.
8984 static void ipr_shutdown(struct pci_dev *pdev)
8986 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8987 unsigned long lock_flags = 0;
8989 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8990 while(ioa_cfg->in_reset_reload) {
8991 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8992 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8993 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8996 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8998 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9001 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9002 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9003 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9004 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9005 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9006 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9007 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9008 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9009 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9010 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9011 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9012 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9013 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9014 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9015 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9016 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9018 IPR_USE_LONG_TRANSOP_TIMEOUT },
9019 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9020 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9021 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9022 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9023 IPR_USE_LONG_TRANSOP_TIMEOUT },
9024 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9026 IPR_USE_LONG_TRANSOP_TIMEOUT },
9027 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9029 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9031 IPR_USE_LONG_TRANSOP_TIMEOUT},
9032 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9033 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9034 IPR_USE_LONG_TRANSOP_TIMEOUT },
9035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9037 IPR_USE_LONG_TRANSOP_TIMEOUT },
9038 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9039 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9040 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9041 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9042 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9044 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9047 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9048 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9049 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9050 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9051 IPR_USE_LONG_TRANSOP_TIMEOUT },
9052 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9054 IPR_USE_LONG_TRANSOP_TIMEOUT },
9055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9057 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9059 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9061 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9062 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9063 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9064 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9069 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9071 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9072 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9075 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9077 static struct pci_error_handlers ipr_err_handler = {
9078 .error_detected = ipr_pci_error_detected,
9079 .slot_reset = ipr_pci_slot_reset,
9082 static struct pci_driver ipr_driver = {
9084 .id_table = ipr_pci_table,
9086 .remove = __devexit_p(ipr_remove),
9087 .shutdown = ipr_shutdown,
9088 .err_handler = &ipr_err_handler,
9092 * ipr_halt_done - Shutdown prepare completion
9097 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9099 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9101 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9105 * ipr_halt - Issue shutdown prepare to all adapters
9108 * NOTIFY_OK on success / NOTIFY_DONE on failure
9110 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9112 struct ipr_cmnd *ipr_cmd;
9113 struct ipr_ioa_cfg *ioa_cfg;
9114 unsigned long flags = 0;
9116 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9119 spin_lock(&ipr_driver_lock);
9121 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9122 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9123 if (!ioa_cfg->allow_cmds) {
9124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9128 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9129 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9130 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9131 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9132 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9134 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9137 spin_unlock(&ipr_driver_lock);
9142 static struct notifier_block ipr_notifier = {
9147 * ipr_init - Module entry point
9150 * 0 on success / negative value on failure
9152 static int __init ipr_init(void)
9154 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9155 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9157 register_reboot_notifier(&ipr_notifier);
9158 return pci_register_driver(&ipr_driver);
9162 * ipr_exit - Module unload
9164 * Module unload entry point.
9169 static void __exit ipr_exit(void)
9171 unregister_reboot_notifier(&ipr_notifier);
9172 pci_unregister_driver(&ipr_driver);
9175 module_init(ipr_init);
9176 module_exit(ipr_exit);