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/ioport.h>
63 #include <linux/delay.h>
64 #include <linux/pci.h>
65 #include <linux/wait.h>
66 #include <linux/spinlock.h>
67 #include <linux/sched.h>
68 #include <linux/interrupt.h>
69 #include <linux/blkdev.h>
70 #include <linux/firmware.h>
71 #include <linux/module.h>
72 #include <linux/moduleparam.h>
73 #include <linux/libata.h>
74 #include <linux/hdreg.h>
77 #include <asm/processor.h>
78 #include <scsi/scsi.h>
79 #include <scsi/scsi_host.h>
80 #include <scsi/scsi_tcq.h>
81 #include <scsi/scsi_eh.h>
82 #include <scsi/scsi_cmnd.h>
88 static LIST_HEAD(ipr_ioa_head);
89 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
90 static unsigned int ipr_max_speed = 1;
91 static int ipr_testmode = 0;
92 static unsigned int ipr_fastfail = 0;
93 static unsigned int ipr_transop_timeout = 0;
94 static unsigned int ipr_enable_cache = 1;
95 static unsigned int ipr_debug = 0;
96 static unsigned int ipr_dual_ioa_raid = 1;
97 static DEFINE_SPINLOCK(ipr_driver_lock);
99 /* This table describes the differences between DMA controller chips */
100 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
101 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
103 .cache_line_size = 0x20,
105 .set_interrupt_mask_reg = 0x0022C,
106 .clr_interrupt_mask_reg = 0x00230,
107 .sense_interrupt_mask_reg = 0x0022C,
108 .clr_interrupt_reg = 0x00228,
109 .sense_interrupt_reg = 0x00224,
110 .ioarrin_reg = 0x00404,
111 .sense_uproc_interrupt_reg = 0x00214,
112 .set_uproc_interrupt_reg = 0x00214,
113 .clr_uproc_interrupt_reg = 0x00218
116 { /* Snipe and Scamp */
118 .cache_line_size = 0x20,
120 .set_interrupt_mask_reg = 0x00288,
121 .clr_interrupt_mask_reg = 0x0028C,
122 .sense_interrupt_mask_reg = 0x00288,
123 .clr_interrupt_reg = 0x00284,
124 .sense_interrupt_reg = 0x00280,
125 .ioarrin_reg = 0x00504,
126 .sense_uproc_interrupt_reg = 0x00290,
127 .set_uproc_interrupt_reg = 0x00290,
128 .clr_uproc_interrupt_reg = 0x00294
133 static const struct ipr_chip_t ipr_chip[] = {
134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, &ipr_chip_cfg[0] },
135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, &ipr_chip_cfg[0] },
136 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, &ipr_chip_cfg[0] },
137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, &ipr_chip_cfg[0] },
138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, &ipr_chip_cfg[0] },
139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, &ipr_chip_cfg[1] },
140 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, &ipr_chip_cfg[1] }
143 static int ipr_max_bus_speeds [] = {
144 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
147 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
148 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
149 module_param_named(max_speed, ipr_max_speed, uint, 0);
150 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
151 module_param_named(log_level, ipr_log_level, uint, 0);
152 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
153 module_param_named(testmode, ipr_testmode, int, 0);
154 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
155 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
156 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
157 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
158 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
159 module_param_named(enable_cache, ipr_enable_cache, int, 0);
160 MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
161 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
162 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
163 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
164 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
165 MODULE_LICENSE("GPL");
166 MODULE_VERSION(IPR_DRIVER_VERSION);
168 /* A constant array of IOASCs/URCs/Error Messages */
170 struct ipr_error_table_t ipr_error_table[] = {
171 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
172 "8155: An unknown error was received"},
174 "Soft underlength error"},
176 "Command to be cancelled not found"},
178 "Qualified success"},
179 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
180 "FFFE: Soft device bus error recovered by the IOA"},
181 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
182 "4101: Soft device bus fabric error"},
183 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
184 "FFF9: Device sector reassign successful"},
185 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
186 "FFF7: Media error recovered by device rewrite procedures"},
187 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
188 "7001: IOA sector reassignment successful"},
189 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
190 "FFF9: Soft media error. Sector reassignment recommended"},
191 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
192 "FFF7: Media error recovered by IOA rewrite procedures"},
193 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
194 "FF3D: Soft PCI bus error recovered by the IOA"},
195 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
196 "FFF6: Device hardware error recovered by the IOA"},
197 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
198 "FFF6: Device hardware error recovered by the device"},
199 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
200 "FF3D: Soft IOA error recovered by the IOA"},
201 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
202 "FFFA: Undefined device response recovered by the IOA"},
203 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
204 "FFF6: Device bus error, message or command phase"},
205 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
206 "FFFE: Task Management Function failed"},
207 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
208 "FFF6: Failure prediction threshold exceeded"},
209 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
210 "8009: Impending cache battery pack failure"},
212 "34FF: Disk device format in progress"},
213 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
214 "9070: IOA requested reset"},
216 "Synchronization required"},
218 "No ready, IOA shutdown"},
220 "Not ready, IOA has been shutdown"},
221 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
222 "3020: Storage subsystem configuration error"},
224 "FFF5: Medium error, data unreadable, recommend reassign"},
226 "7000: Medium error, data unreadable, do not reassign"},
227 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
228 "FFF3: Disk media format bad"},
229 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
230 "3002: Addressed device failed to respond to selection"},
231 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
232 "3100: Device bus error"},
233 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
234 "3109: IOA timed out a device command"},
236 "3120: SCSI bus is not operational"},
237 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4100: Hard device bus fabric error"},
239 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "9000: IOA reserved area data check"},
241 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "9001: IOA reserved area invalid data pattern"},
243 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
244 "9002: IOA reserved area LRC error"},
245 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
246 "102E: Out of alternate sectors for disk storage"},
247 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
248 "FFF4: Data transfer underlength error"},
249 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
250 "FFF4: Data transfer overlength error"},
251 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
252 "3400: Logical unit failure"},
253 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FFF4: Device microcode is corrupt"},
255 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
256 "8150: PCI bus error"},
258 "Unsupported device bus message received"},
259 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FFF4: Disk device problem"},
261 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
262 "8150: Permanent IOA failure"},
263 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
264 "3010: Disk device returned wrong response to IOA"},
265 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
266 "8151: IOA microcode error"},
268 "Device bus status error"},
269 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
270 "8157: IOA error requiring IOA reset to recover"},
272 "ATA device status error"},
274 "Message reject received from the device"},
275 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
276 "8008: A permanent cache battery pack failure occurred"},
277 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
278 "9090: Disk unit has been modified after the last known status"},
279 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
280 "9081: IOA detected device error"},
281 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
282 "9082: IOA detected device error"},
283 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
284 "3110: Device bus error, message or command phase"},
285 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
286 "3110: SAS Command / Task Management Function failed"},
287 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
288 "9091: Incorrect hardware configuration change has been detected"},
289 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
290 "9073: Invalid multi-adapter configuration"},
291 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
292 "4010: Incorrect connection between cascaded expanders"},
293 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
294 "4020: Connections exceed IOA design limits"},
295 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
296 "4030: Incorrect multipath connection"},
297 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
298 "4110: Unsupported enclosure function"},
299 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
300 "FFF4: Command to logical unit failed"},
302 "Illegal request, invalid request type or request packet"},
304 "Illegal request, invalid resource handle"},
306 "Illegal request, commands not allowed to this device"},
308 "Illegal request, command not allowed to a secondary adapter"},
310 "Illegal request, invalid field in parameter list"},
312 "Illegal request, parameter not supported"},
314 "Illegal request, parameter value invalid"},
316 "Illegal request, command sequence error"},
318 "Illegal request, dual adapter support not enabled"},
319 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
320 "9031: Array protection temporarily suspended, protection resuming"},
321 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
322 "9040: Array protection temporarily suspended, protection resuming"},
323 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
324 "3140: Device bus not ready to ready transition"},
325 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
326 "FFFB: SCSI bus was reset"},
328 "FFFE: SCSI bus transition to single ended"},
330 "FFFE: SCSI bus transition to LVD"},
331 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
332 "FFFB: SCSI bus was reset by another initiator"},
333 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
334 "3029: A device replacement has occurred"},
335 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "9051: IOA cache data exists for a missing or failed device"},
337 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
339 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
340 "9025: Disk unit is not supported at its physical location"},
341 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
342 "3020: IOA detected a SCSI bus configuration error"},
343 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
344 "3150: SCSI bus configuration error"},
345 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
346 "9074: Asymmetric advanced function disk configuration"},
347 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
348 "4040: Incomplete multipath connection between IOA and enclosure"},
349 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
350 "4041: Incomplete multipath connection between enclosure and device"},
351 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
352 "9075: Incomplete multipath connection between IOA and remote IOA"},
353 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
354 "9076: Configuration error, missing remote IOA"},
355 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
356 "4050: Enclosure does not support a required multipath function"},
357 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
358 "4070: Logically bad block written on device"},
359 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
360 "9041: Array protection temporarily suspended"},
361 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
362 "9042: Corrupt array parity detected on specified device"},
363 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
364 "9030: Array no longer protected due to missing or failed disk unit"},
365 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
366 "9071: Link operational transition"},
367 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
368 "9072: Link not operational transition"},
369 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
370 "9032: Array exposed but still protected"},
371 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
372 "70DD: Device forced failed by disrupt device command"},
373 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4061: Multipath redundancy level got better"},
375 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
376 "4060: Multipath redundancy level got worse"},
378 "Failure due to other device"},
379 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
380 "9008: IOA does not support functions expected by devices"},
381 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
382 "9010: Cache data associated with attached devices cannot be found"},
383 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
384 "9011: Cache data belongs to devices other than those attached"},
385 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
386 "9020: Array missing 2 or more devices with only 1 device present"},
387 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
388 "9021: Array missing 2 or more devices with 2 or more devices present"},
389 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
390 "9022: Exposed array is missing a required device"},
391 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
392 "9023: Array member(s) not at required physical locations"},
393 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
394 "9024: Array not functional due to present hardware configuration"},
395 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
396 "9026: Array not functional due to present hardware configuration"},
397 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
398 "9027: Array is missing a device and parity is out of sync"},
399 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
400 "9028: Maximum number of arrays already exist"},
401 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
402 "9050: Required cache data cannot be located for a disk unit"},
403 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
404 "9052: Cache data exists for a device that has been modified"},
405 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
406 "9054: IOA resources not available due to previous problems"},
407 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
408 "9092: Disk unit requires initialization before use"},
409 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
410 "9029: Incorrect hardware configuration change has been detected"},
411 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
412 "9060: One or more disk pairs are missing from an array"},
413 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
414 "9061: One or more disks are missing from an array"},
415 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
416 "9062: One or more disks are missing from an array"},
417 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
418 "9063: Maximum number of functional arrays has been exceeded"},
420 "Aborted command, invalid descriptor"},
422 "Command terminated by host"}
425 static const struct ipr_ses_table_entry ipr_ses_table[] = {
426 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
427 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
428 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
429 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
430 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
431 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
432 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
433 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
434 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
435 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
436 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
437 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
438 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
442 * Function Prototypes
444 static int ipr_reset_alert(struct ipr_cmnd *);
445 static void ipr_process_ccn(struct ipr_cmnd *);
446 static void ipr_process_error(struct ipr_cmnd *);
447 static void ipr_reset_ioa_job(struct ipr_cmnd *);
448 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
449 enum ipr_shutdown_type);
451 #ifdef CONFIG_SCSI_IPR_TRACE
453 * ipr_trc_hook - Add a trace entry to the driver trace
454 * @ipr_cmd: ipr command struct
456 * @add_data: additional data
461 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
462 u8 type, u32 add_data)
464 struct ipr_trace_entry *trace_entry;
465 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
467 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
468 trace_entry->time = jiffies;
469 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
470 trace_entry->type = type;
471 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command;
472 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
473 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
474 trace_entry->u.add_data = add_data;
477 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
481 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
482 * @ipr_cmd: ipr command struct
487 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
489 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
490 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
491 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
493 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
494 ioarcb->write_data_transfer_length = 0;
495 ioarcb->read_data_transfer_length = 0;
496 ioarcb->write_ioadl_len = 0;
497 ioarcb->read_ioadl_len = 0;
498 ioarcb->write_ioadl_addr =
499 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
500 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
502 ioasa->residual_data_len = 0;
503 ioasa->u.gata.status = 0;
505 ipr_cmd->scsi_cmd = NULL;
507 ipr_cmd->sense_buffer[0] = 0;
508 ipr_cmd->dma_use_sg = 0;
512 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
513 * @ipr_cmd: ipr command struct
518 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
520 ipr_reinit_ipr_cmnd(ipr_cmd);
521 ipr_cmd->u.scratch = 0;
522 ipr_cmd->sibling = NULL;
523 init_timer(&ipr_cmd->timer);
527 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
528 * @ioa_cfg: ioa config struct
531 * pointer to ipr command struct
534 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
536 struct ipr_cmnd *ipr_cmd;
538 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
539 list_del(&ipr_cmd->queue);
540 ipr_init_ipr_cmnd(ipr_cmd);
546 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
547 * @ioa_cfg: ioa config struct
548 * @clr_ints: interrupts to clear
550 * This function masks all interrupts on the adapter, then clears the
551 * interrupts specified in the mask
556 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
559 volatile u32 int_reg;
561 /* Stop new interrupts */
562 ioa_cfg->allow_interrupts = 0;
564 /* Set interrupt mask to stop all new interrupts */
565 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
567 /* Clear any pending interrupts */
568 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
569 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
573 * ipr_save_pcix_cmd_reg - Save PCI-X command register
574 * @ioa_cfg: ioa config struct
577 * 0 on success / -EIO on failure
579 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
581 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
583 if (pcix_cmd_reg == 0)
586 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
587 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
588 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
592 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
597 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
598 * @ioa_cfg: ioa config struct
601 * 0 on success / -EIO on failure
603 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
605 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
608 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
609 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
610 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
619 * ipr_sata_eh_done - done function for aborted SATA commands
620 * @ipr_cmd: ipr command struct
622 * This function is invoked for ops generated to SATA
623 * devices which are being aborted.
628 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
630 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
631 struct ata_queued_cmd *qc = ipr_cmd->qc;
632 struct ipr_sata_port *sata_port = qc->ap->private_data;
634 qc->err_mask |= AC_ERR_OTHER;
635 sata_port->ioasa.status |= ATA_BUSY;
636 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
641 * ipr_scsi_eh_done - mid-layer done function for aborted ops
642 * @ipr_cmd: ipr command struct
644 * This function is invoked by the interrupt handler for
645 * ops generated by the SCSI mid-layer which are being aborted.
650 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
652 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
653 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
655 scsi_cmd->result |= (DID_ERROR << 16);
657 scsi_dma_unmap(ipr_cmd->scsi_cmd);
658 scsi_cmd->scsi_done(scsi_cmd);
659 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
663 * ipr_fail_all_ops - Fails all outstanding ops.
664 * @ioa_cfg: ioa config struct
666 * This function fails all outstanding ops.
671 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
673 struct ipr_cmnd *ipr_cmd, *temp;
676 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
677 list_del(&ipr_cmd->queue);
679 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
680 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
682 if (ipr_cmd->scsi_cmd)
683 ipr_cmd->done = ipr_scsi_eh_done;
684 else if (ipr_cmd->qc)
685 ipr_cmd->done = ipr_sata_eh_done;
687 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
688 del_timer(&ipr_cmd->timer);
689 ipr_cmd->done(ipr_cmd);
696 * ipr_do_req - Send driver initiated requests.
697 * @ipr_cmd: ipr command struct
698 * @done: done function
699 * @timeout_func: timeout function
700 * @timeout: timeout value
702 * This function sends the specified command to the adapter with the
703 * timeout given. The done function is invoked on command completion.
708 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
709 void (*done) (struct ipr_cmnd *),
710 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
712 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
714 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
716 ipr_cmd->done = done;
718 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
719 ipr_cmd->timer.expires = jiffies + timeout;
720 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
722 add_timer(&ipr_cmd->timer);
724 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
727 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
728 ioa_cfg->regs.ioarrin_reg);
732 * ipr_internal_cmd_done - Op done function for an internally generated op.
733 * @ipr_cmd: ipr command struct
735 * This function is the op done function for an internally generated,
736 * blocking op. It simply wakes the sleeping thread.
741 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
743 if (ipr_cmd->sibling)
744 ipr_cmd->sibling = NULL;
746 complete(&ipr_cmd->completion);
750 * ipr_send_blocking_cmd - Send command and sleep on its completion.
751 * @ipr_cmd: ipr command struct
752 * @timeout_func: function to invoke if command times out
758 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
759 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
764 init_completion(&ipr_cmd->completion);
765 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
767 spin_unlock_irq(ioa_cfg->host->host_lock);
768 wait_for_completion(&ipr_cmd->completion);
769 spin_lock_irq(ioa_cfg->host->host_lock);
773 * ipr_send_hcam - Send an HCAM to the adapter.
774 * @ioa_cfg: ioa config struct
776 * @hostrcb: hostrcb struct
778 * This function will send a Host Controlled Async command to the adapter.
779 * If HCAMs are currently not allowed to be issued to the adapter, it will
780 * place the hostrcb on the free queue.
785 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
786 struct ipr_hostrcb *hostrcb)
788 struct ipr_cmnd *ipr_cmd;
789 struct ipr_ioarcb *ioarcb;
791 if (ioa_cfg->allow_cmds) {
792 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
793 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
794 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
796 ipr_cmd->u.hostrcb = hostrcb;
797 ioarcb = &ipr_cmd->ioarcb;
799 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
800 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
801 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
802 ioarcb->cmd_pkt.cdb[1] = type;
803 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
804 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
806 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
807 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
808 ipr_cmd->ioadl[0].flags_and_data_len =
809 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
810 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
812 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
813 ipr_cmd->done = ipr_process_ccn;
815 ipr_cmd->done = ipr_process_error;
817 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
820 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
821 ioa_cfg->regs.ioarrin_reg);
823 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
828 * ipr_init_res_entry - Initialize a resource entry struct.
829 * @res: resource entry struct
834 static void ipr_init_res_entry(struct ipr_resource_entry *res)
836 res->needs_sync_complete = 0;
839 res->del_from_ml = 0;
840 res->resetting_device = 0;
842 res->sata_port = NULL;
846 * ipr_handle_config_change - Handle a config change from the adapter
847 * @ioa_cfg: ioa config struct
853 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
854 struct ipr_hostrcb *hostrcb)
856 struct ipr_resource_entry *res = NULL;
857 struct ipr_config_table_entry *cfgte;
860 cfgte = &hostrcb->hcam.u.ccn.cfgte;
862 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
863 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
864 sizeof(cfgte->res_addr))) {
871 if (list_empty(&ioa_cfg->free_res_q)) {
872 ipr_send_hcam(ioa_cfg,
873 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
878 res = list_entry(ioa_cfg->free_res_q.next,
879 struct ipr_resource_entry, queue);
881 list_del(&res->queue);
882 ipr_init_res_entry(res);
883 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
886 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
888 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
890 res->del_from_ml = 1;
891 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
892 if (ioa_cfg->allow_ml_add_del)
893 schedule_work(&ioa_cfg->work_q);
895 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
896 } else if (!res->sdev) {
898 if (ioa_cfg->allow_ml_add_del)
899 schedule_work(&ioa_cfg->work_q);
902 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
906 * ipr_process_ccn - Op done function for a CCN.
907 * @ipr_cmd: ipr command struct
909 * This function is the op done function for a configuration
910 * change notification host controlled async from the adapter.
915 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
917 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
918 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
919 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
921 list_del(&hostrcb->queue);
922 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
925 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
926 dev_err(&ioa_cfg->pdev->dev,
927 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
929 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
931 ipr_handle_config_change(ioa_cfg, hostrcb);
936 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
937 * @i: index into buffer
938 * @buf: string to modify
940 * This function will strip all trailing whitespace, pad the end
941 * of the string with a single space, and NULL terminate the string.
944 * new length of string
946 static int strip_and_pad_whitespace(int i, char *buf)
948 while (i && buf[i] == ' ')
956 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
957 * @prefix: string to print at start of printk
958 * @hostrcb: hostrcb pointer
959 * @vpd: vendor/product id/sn struct
964 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
967 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
970 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
971 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
973 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
974 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
976 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
977 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
979 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
983 * ipr_log_vpd - Log the passed VPD to the error log.
984 * @vpd: vendor/product id/sn struct
989 static void ipr_log_vpd(struct ipr_vpd *vpd)
991 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
992 + IPR_SERIAL_NUM_LEN];
994 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
995 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
997 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
998 ipr_err("Vendor/Product ID: %s\n", buffer);
1000 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1001 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1002 ipr_err(" Serial Number: %s\n", buffer);
1006 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1007 * @prefix: string to print at start of printk
1008 * @hostrcb: hostrcb pointer
1009 * @vpd: vendor/product id/sn/wwn struct
1014 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1015 struct ipr_ext_vpd *vpd)
1017 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1018 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1019 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1023 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1024 * @vpd: vendor/product id/sn/wwn struct
1029 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1031 ipr_log_vpd(&vpd->vpd);
1032 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1033 be32_to_cpu(vpd->wwid[1]));
1037 * ipr_log_enhanced_cache_error - Log a cache error.
1038 * @ioa_cfg: ioa config struct
1039 * @hostrcb: hostrcb struct
1044 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1045 struct ipr_hostrcb *hostrcb)
1047 struct ipr_hostrcb_type_12_error *error =
1048 &hostrcb->hcam.u.error.u.type_12_error;
1050 ipr_err("-----Current Configuration-----\n");
1051 ipr_err("Cache Directory Card Information:\n");
1052 ipr_log_ext_vpd(&error->ioa_vpd);
1053 ipr_err("Adapter Card Information:\n");
1054 ipr_log_ext_vpd(&error->cfc_vpd);
1056 ipr_err("-----Expected Configuration-----\n");
1057 ipr_err("Cache Directory Card Information:\n");
1058 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1059 ipr_err("Adapter Card Information:\n");
1060 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1062 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1063 be32_to_cpu(error->ioa_data[0]),
1064 be32_to_cpu(error->ioa_data[1]),
1065 be32_to_cpu(error->ioa_data[2]));
1069 * ipr_log_cache_error - Log a cache error.
1070 * @ioa_cfg: ioa config struct
1071 * @hostrcb: hostrcb struct
1076 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1077 struct ipr_hostrcb *hostrcb)
1079 struct ipr_hostrcb_type_02_error *error =
1080 &hostrcb->hcam.u.error.u.type_02_error;
1082 ipr_err("-----Current Configuration-----\n");
1083 ipr_err("Cache Directory Card Information:\n");
1084 ipr_log_vpd(&error->ioa_vpd);
1085 ipr_err("Adapter Card Information:\n");
1086 ipr_log_vpd(&error->cfc_vpd);
1088 ipr_err("-----Expected Configuration-----\n");
1089 ipr_err("Cache Directory Card Information:\n");
1090 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1091 ipr_err("Adapter Card Information:\n");
1092 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1094 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1095 be32_to_cpu(error->ioa_data[0]),
1096 be32_to_cpu(error->ioa_data[1]),
1097 be32_to_cpu(error->ioa_data[2]));
1101 * ipr_log_enhanced_config_error - Log a configuration error.
1102 * @ioa_cfg: ioa config struct
1103 * @hostrcb: hostrcb struct
1108 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1109 struct ipr_hostrcb *hostrcb)
1111 int errors_logged, i;
1112 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1113 struct ipr_hostrcb_type_13_error *error;
1115 error = &hostrcb->hcam.u.error.u.type_13_error;
1116 errors_logged = be32_to_cpu(error->errors_logged);
1118 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1119 be32_to_cpu(error->errors_detected), errors_logged);
1121 dev_entry = error->dev;
1123 for (i = 0; i < errors_logged; i++, dev_entry++) {
1126 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1127 ipr_log_ext_vpd(&dev_entry->vpd);
1129 ipr_err("-----New Device Information-----\n");
1130 ipr_log_ext_vpd(&dev_entry->new_vpd);
1132 ipr_err("Cache Directory Card Information:\n");
1133 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1135 ipr_err("Adapter Card Information:\n");
1136 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1141 * ipr_log_config_error - Log a configuration error.
1142 * @ioa_cfg: ioa config struct
1143 * @hostrcb: hostrcb struct
1148 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1149 struct ipr_hostrcb *hostrcb)
1151 int errors_logged, i;
1152 struct ipr_hostrcb_device_data_entry *dev_entry;
1153 struct ipr_hostrcb_type_03_error *error;
1155 error = &hostrcb->hcam.u.error.u.type_03_error;
1156 errors_logged = be32_to_cpu(error->errors_logged);
1158 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1159 be32_to_cpu(error->errors_detected), errors_logged);
1161 dev_entry = error->dev;
1163 for (i = 0; i < errors_logged; i++, dev_entry++) {
1166 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1167 ipr_log_vpd(&dev_entry->vpd);
1169 ipr_err("-----New Device Information-----\n");
1170 ipr_log_vpd(&dev_entry->new_vpd);
1172 ipr_err("Cache Directory Card Information:\n");
1173 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1175 ipr_err("Adapter Card Information:\n");
1176 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1178 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1179 be32_to_cpu(dev_entry->ioa_data[0]),
1180 be32_to_cpu(dev_entry->ioa_data[1]),
1181 be32_to_cpu(dev_entry->ioa_data[2]),
1182 be32_to_cpu(dev_entry->ioa_data[3]),
1183 be32_to_cpu(dev_entry->ioa_data[4]));
1188 * ipr_log_enhanced_array_error - Log an array configuration error.
1189 * @ioa_cfg: ioa config struct
1190 * @hostrcb: hostrcb struct
1195 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1196 struct ipr_hostrcb *hostrcb)
1199 struct ipr_hostrcb_type_14_error *error;
1200 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1201 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1203 error = &hostrcb->hcam.u.error.u.type_14_error;
1207 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1208 error->protection_level,
1209 ioa_cfg->host->host_no,
1210 error->last_func_vset_res_addr.bus,
1211 error->last_func_vset_res_addr.target,
1212 error->last_func_vset_res_addr.lun);
1216 array_entry = error->array_member;
1217 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1218 sizeof(error->array_member));
1220 for (i = 0; i < num_entries; i++, array_entry++) {
1221 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1224 if (be32_to_cpu(error->exposed_mode_adn) == i)
1225 ipr_err("Exposed Array Member %d:\n", i);
1227 ipr_err("Array Member %d:\n", i);
1229 ipr_log_ext_vpd(&array_entry->vpd);
1230 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1231 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1232 "Expected Location");
1239 * ipr_log_array_error - Log an array configuration error.
1240 * @ioa_cfg: ioa config struct
1241 * @hostrcb: hostrcb struct
1246 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1247 struct ipr_hostrcb *hostrcb)
1250 struct ipr_hostrcb_type_04_error *error;
1251 struct ipr_hostrcb_array_data_entry *array_entry;
1252 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1254 error = &hostrcb->hcam.u.error.u.type_04_error;
1258 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1259 error->protection_level,
1260 ioa_cfg->host->host_no,
1261 error->last_func_vset_res_addr.bus,
1262 error->last_func_vset_res_addr.target,
1263 error->last_func_vset_res_addr.lun);
1267 array_entry = error->array_member;
1269 for (i = 0; i < 18; i++) {
1270 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1273 if (be32_to_cpu(error->exposed_mode_adn) == i)
1274 ipr_err("Exposed Array Member %d:\n", i);
1276 ipr_err("Array Member %d:\n", i);
1278 ipr_log_vpd(&array_entry->vpd);
1280 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1281 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1282 "Expected Location");
1287 array_entry = error->array_member2;
1294 * ipr_log_hex_data - Log additional hex IOA error data.
1295 * @ioa_cfg: ioa config struct
1296 * @data: IOA error data
1302 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1309 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1310 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1312 for (i = 0; i < len / 4; i += 4) {
1313 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1314 be32_to_cpu(data[i]),
1315 be32_to_cpu(data[i+1]),
1316 be32_to_cpu(data[i+2]),
1317 be32_to_cpu(data[i+3]));
1322 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1323 * @ioa_cfg: ioa config struct
1324 * @hostrcb: hostrcb struct
1329 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1330 struct ipr_hostrcb *hostrcb)
1332 struct ipr_hostrcb_type_17_error *error;
1334 error = &hostrcb->hcam.u.error.u.type_17_error;
1335 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1336 strstrip(error->failure_reason);
1338 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1339 be32_to_cpu(hostrcb->hcam.u.error.prc));
1340 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1341 ipr_log_hex_data(ioa_cfg, error->data,
1342 be32_to_cpu(hostrcb->hcam.length) -
1343 (offsetof(struct ipr_hostrcb_error, u) +
1344 offsetof(struct ipr_hostrcb_type_17_error, data)));
1348 * ipr_log_dual_ioa_error - Log a dual adapter error.
1349 * @ioa_cfg: ioa config struct
1350 * @hostrcb: hostrcb struct
1355 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1356 struct ipr_hostrcb *hostrcb)
1358 struct ipr_hostrcb_type_07_error *error;
1360 error = &hostrcb->hcam.u.error.u.type_07_error;
1361 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1362 strstrip(error->failure_reason);
1364 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1365 be32_to_cpu(hostrcb->hcam.u.error.prc));
1366 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1367 ipr_log_hex_data(ioa_cfg, error->data,
1368 be32_to_cpu(hostrcb->hcam.length) -
1369 (offsetof(struct ipr_hostrcb_error, u) +
1370 offsetof(struct ipr_hostrcb_type_07_error, data)));
1373 static const struct {
1376 } path_active_desc[] = {
1377 { IPR_PATH_NO_INFO, "Path" },
1378 { IPR_PATH_ACTIVE, "Active path" },
1379 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1382 static const struct {
1385 } path_state_desc[] = {
1386 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1387 { IPR_PATH_HEALTHY, "is healthy" },
1388 { IPR_PATH_DEGRADED, "is degraded" },
1389 { IPR_PATH_FAILED, "is failed" }
1393 * ipr_log_fabric_path - Log a fabric path error
1394 * @hostrcb: hostrcb struct
1395 * @fabric: fabric descriptor
1400 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1401 struct ipr_hostrcb_fabric_desc *fabric)
1404 u8 path_state = fabric->path_state;
1405 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1406 u8 state = path_state & IPR_PATH_STATE_MASK;
1408 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1409 if (path_active_desc[i].active != active)
1412 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1413 if (path_state_desc[j].state != state)
1416 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1417 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1418 path_active_desc[i].desc, path_state_desc[j].desc,
1420 } else if (fabric->cascaded_expander == 0xff) {
1421 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1422 path_active_desc[i].desc, path_state_desc[j].desc,
1423 fabric->ioa_port, fabric->phy);
1424 } else if (fabric->phy == 0xff) {
1425 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1426 path_active_desc[i].desc, path_state_desc[j].desc,
1427 fabric->ioa_port, fabric->cascaded_expander);
1429 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1430 path_active_desc[i].desc, path_state_desc[j].desc,
1431 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1437 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1438 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1441 static const struct {
1444 } path_type_desc[] = {
1445 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1446 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1447 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1448 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1451 static const struct {
1454 } path_status_desc[] = {
1455 { IPR_PATH_CFG_NO_PROB, "Functional" },
1456 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1457 { IPR_PATH_CFG_FAILED, "Failed" },
1458 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1459 { IPR_PATH_NOT_DETECTED, "Missing" },
1460 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1463 static const char *link_rate[] = {
1466 "phy reset problem",
1483 * ipr_log_path_elem - Log a fabric path element.
1484 * @hostrcb: hostrcb struct
1485 * @cfg: fabric path element struct
1490 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1491 struct ipr_hostrcb_config_element *cfg)
1494 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1495 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1497 if (type == IPR_PATH_CFG_NOT_EXIST)
1500 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1501 if (path_type_desc[i].type != type)
1504 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1505 if (path_status_desc[j].status != status)
1508 if (type == IPR_PATH_CFG_IOA_PORT) {
1509 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1510 path_status_desc[j].desc, path_type_desc[i].desc,
1511 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1512 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1514 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1515 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1516 path_status_desc[j].desc, path_type_desc[i].desc,
1517 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1518 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1519 } else if (cfg->cascaded_expander == 0xff) {
1520 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1521 "WWN=%08X%08X\n", path_status_desc[j].desc,
1522 path_type_desc[i].desc, cfg->phy,
1523 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1524 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1525 } else if (cfg->phy == 0xff) {
1526 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1527 "WWN=%08X%08X\n", path_status_desc[j].desc,
1528 path_type_desc[i].desc, cfg->cascaded_expander,
1529 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1530 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1532 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1533 "WWN=%08X%08X\n", path_status_desc[j].desc,
1534 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1535 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1536 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1543 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1544 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1545 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1546 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1550 * ipr_log_fabric_error - Log a fabric error.
1551 * @ioa_cfg: ioa config struct
1552 * @hostrcb: hostrcb struct
1557 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1558 struct ipr_hostrcb *hostrcb)
1560 struct ipr_hostrcb_type_20_error *error;
1561 struct ipr_hostrcb_fabric_desc *fabric;
1562 struct ipr_hostrcb_config_element *cfg;
1565 error = &hostrcb->hcam.u.error.u.type_20_error;
1566 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1567 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1569 add_len = be32_to_cpu(hostrcb->hcam.length) -
1570 (offsetof(struct ipr_hostrcb_error, u) +
1571 offsetof(struct ipr_hostrcb_type_20_error, desc));
1573 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1574 ipr_log_fabric_path(hostrcb, fabric);
1575 for_each_fabric_cfg(fabric, cfg)
1576 ipr_log_path_elem(hostrcb, cfg);
1578 add_len -= be16_to_cpu(fabric->length);
1579 fabric = (struct ipr_hostrcb_fabric_desc *)
1580 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1583 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1587 * ipr_log_generic_error - Log an adapter error.
1588 * @ioa_cfg: ioa config struct
1589 * @hostrcb: hostrcb struct
1594 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1595 struct ipr_hostrcb *hostrcb)
1597 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1598 be32_to_cpu(hostrcb->hcam.length));
1602 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1605 * This function will return the index of into the ipr_error_table
1606 * for the specified IOASC. If the IOASC is not in the table,
1607 * 0 will be returned, which points to the entry used for unknown errors.
1610 * index into the ipr_error_table
1612 static u32 ipr_get_error(u32 ioasc)
1616 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1617 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1624 * ipr_handle_log_data - Log an adapter error.
1625 * @ioa_cfg: ioa config struct
1626 * @hostrcb: hostrcb struct
1628 * This function logs an adapter error to the system.
1633 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1634 struct ipr_hostrcb *hostrcb)
1639 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1642 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1643 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1645 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1647 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1648 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1649 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1650 scsi_report_bus_reset(ioa_cfg->host,
1651 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1654 error_index = ipr_get_error(ioasc);
1656 if (!ipr_error_table[error_index].log_hcam)
1659 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1661 /* Set indication we have logged an error */
1662 ioa_cfg->errors_logged++;
1664 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1666 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1667 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1669 switch (hostrcb->hcam.overlay_id) {
1670 case IPR_HOST_RCB_OVERLAY_ID_2:
1671 ipr_log_cache_error(ioa_cfg, hostrcb);
1673 case IPR_HOST_RCB_OVERLAY_ID_3:
1674 ipr_log_config_error(ioa_cfg, hostrcb);
1676 case IPR_HOST_RCB_OVERLAY_ID_4:
1677 case IPR_HOST_RCB_OVERLAY_ID_6:
1678 ipr_log_array_error(ioa_cfg, hostrcb);
1680 case IPR_HOST_RCB_OVERLAY_ID_7:
1681 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1683 case IPR_HOST_RCB_OVERLAY_ID_12:
1684 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1686 case IPR_HOST_RCB_OVERLAY_ID_13:
1687 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1689 case IPR_HOST_RCB_OVERLAY_ID_14:
1690 case IPR_HOST_RCB_OVERLAY_ID_16:
1691 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1693 case IPR_HOST_RCB_OVERLAY_ID_17:
1694 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1696 case IPR_HOST_RCB_OVERLAY_ID_20:
1697 ipr_log_fabric_error(ioa_cfg, hostrcb);
1699 case IPR_HOST_RCB_OVERLAY_ID_1:
1700 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1702 ipr_log_generic_error(ioa_cfg, hostrcb);
1708 * ipr_process_error - Op done function for an adapter error log.
1709 * @ipr_cmd: ipr command struct
1711 * This function is the op done function for an error log host
1712 * controlled async from the adapter. It will log the error and
1713 * send the HCAM back to the adapter.
1718 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1720 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1721 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1722 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1723 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1725 list_del(&hostrcb->queue);
1726 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1729 ipr_handle_log_data(ioa_cfg, hostrcb);
1730 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1731 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1732 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1733 dev_err(&ioa_cfg->pdev->dev,
1734 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1737 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1741 * ipr_timeout - An internally generated op has timed out.
1742 * @ipr_cmd: ipr command struct
1744 * This function blocks host requests and initiates an
1750 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1752 unsigned long lock_flags = 0;
1753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1756 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1758 ioa_cfg->errors_logged++;
1759 dev_err(&ioa_cfg->pdev->dev,
1760 "Adapter being reset due to command timeout.\n");
1762 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1763 ioa_cfg->sdt_state = GET_DUMP;
1765 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1766 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1768 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1773 * ipr_oper_timeout - Adapter timed out transitioning to operational
1774 * @ipr_cmd: ipr command struct
1776 * This function blocks host requests and initiates an
1782 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1784 unsigned long lock_flags = 0;
1785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1788 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1790 ioa_cfg->errors_logged++;
1791 dev_err(&ioa_cfg->pdev->dev,
1792 "Adapter timed out transitioning to operational.\n");
1794 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1795 ioa_cfg->sdt_state = GET_DUMP;
1797 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1799 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1800 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1808 * ipr_reset_reload - Reset/Reload the IOA
1809 * @ioa_cfg: ioa config struct
1810 * @shutdown_type: shutdown type
1812 * This function resets the adapter and re-initializes it.
1813 * This function assumes that all new host commands have been stopped.
1817 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1818 enum ipr_shutdown_type shutdown_type)
1820 if (!ioa_cfg->in_reset_reload)
1821 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1823 spin_unlock_irq(ioa_cfg->host->host_lock);
1824 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1825 spin_lock_irq(ioa_cfg->host->host_lock);
1827 /* If we got hit with a host reset while we were already resetting
1828 the adapter for some reason, and the reset failed. */
1829 if (ioa_cfg->ioa_is_dead) {
1838 * ipr_find_ses_entry - Find matching SES in SES table
1839 * @res: resource entry struct of SES
1842 * pointer to SES table entry / NULL on failure
1844 static const struct ipr_ses_table_entry *
1845 ipr_find_ses_entry(struct ipr_resource_entry *res)
1848 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1850 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1851 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1852 if (ste->compare_product_id_byte[j] == 'X') {
1853 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1861 if (matches == IPR_PROD_ID_LEN)
1869 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1870 * @ioa_cfg: ioa config struct
1872 * @bus_width: bus width
1875 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1876 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1877 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1878 * max 160MHz = max 320MB/sec).
1880 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1882 struct ipr_resource_entry *res;
1883 const struct ipr_ses_table_entry *ste;
1884 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1886 /* Loop through each config table entry in the config table buffer */
1887 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1888 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1891 if (bus != res->cfgte.res_addr.bus)
1894 if (!(ste = ipr_find_ses_entry(res)))
1897 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1900 return max_xfer_rate;
1904 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1905 * @ioa_cfg: ioa config struct
1906 * @max_delay: max delay in micro-seconds to wait
1908 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1911 * 0 on success / other on failure
1913 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1915 volatile u32 pcii_reg;
1918 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1919 while (delay < max_delay) {
1920 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1922 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1925 /* udelay cannot be used if delay is more than a few milliseconds */
1926 if ((delay / 1000) > MAX_UDELAY_MS)
1927 mdelay(delay / 1000);
1937 * ipr_get_ldump_data_section - Dump IOA memory
1938 * @ioa_cfg: ioa config struct
1939 * @start_addr: adapter address to dump
1940 * @dest: destination kernel buffer
1941 * @length_in_words: length to dump in 4 byte words
1944 * 0 on success / -EIO on failure
1946 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1948 __be32 *dest, u32 length_in_words)
1950 volatile u32 temp_pcii_reg;
1953 /* Write IOA interrupt reg starting LDUMP state */
1954 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1955 ioa_cfg->regs.set_uproc_interrupt_reg);
1957 /* Wait for IO debug acknowledge */
1958 if (ipr_wait_iodbg_ack(ioa_cfg,
1959 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1960 dev_err(&ioa_cfg->pdev->dev,
1961 "IOA dump long data transfer timeout\n");
1965 /* Signal LDUMP interlocked - clear IO debug ack */
1966 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1967 ioa_cfg->regs.clr_interrupt_reg);
1969 /* Write Mailbox with starting address */
1970 writel(start_addr, ioa_cfg->ioa_mailbox);
1972 /* Signal address valid - clear IOA Reset alert */
1973 writel(IPR_UPROCI_RESET_ALERT,
1974 ioa_cfg->regs.clr_uproc_interrupt_reg);
1976 for (i = 0; i < length_in_words; i++) {
1977 /* Wait for IO debug acknowledge */
1978 if (ipr_wait_iodbg_ack(ioa_cfg,
1979 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
1980 dev_err(&ioa_cfg->pdev->dev,
1981 "IOA dump short data transfer timeout\n");
1985 /* Read data from mailbox and increment destination pointer */
1986 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
1989 /* For all but the last word of data, signal data received */
1990 if (i < (length_in_words - 1)) {
1991 /* Signal dump data received - Clear IO debug Ack */
1992 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1993 ioa_cfg->regs.clr_interrupt_reg);
1997 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1998 writel(IPR_UPROCI_RESET_ALERT,
1999 ioa_cfg->regs.set_uproc_interrupt_reg);
2001 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2002 ioa_cfg->regs.clr_uproc_interrupt_reg);
2004 /* Signal dump data received - Clear IO debug Ack */
2005 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2006 ioa_cfg->regs.clr_interrupt_reg);
2008 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2009 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2011 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2013 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2023 #ifdef CONFIG_SCSI_IPR_DUMP
2025 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2026 * @ioa_cfg: ioa config struct
2027 * @pci_address: adapter address
2028 * @length: length of data to copy
2030 * Copy data from PCI adapter to kernel buffer.
2031 * Note: length MUST be a 4 byte multiple
2033 * 0 on success / other on failure
2035 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2036 unsigned long pci_address, u32 length)
2038 int bytes_copied = 0;
2039 int cur_len, rc, rem_len, rem_page_len;
2041 unsigned long lock_flags = 0;
2042 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2044 while (bytes_copied < length &&
2045 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2046 if (ioa_dump->page_offset >= PAGE_SIZE ||
2047 ioa_dump->page_offset == 0) {
2048 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2052 return bytes_copied;
2055 ioa_dump->page_offset = 0;
2056 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2057 ioa_dump->next_page_index++;
2059 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2061 rem_len = length - bytes_copied;
2062 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2063 cur_len = min(rem_len, rem_page_len);
2065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2066 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2069 rc = ipr_get_ldump_data_section(ioa_cfg,
2070 pci_address + bytes_copied,
2071 &page[ioa_dump->page_offset / 4],
2072 (cur_len / sizeof(u32)));
2074 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2077 ioa_dump->page_offset += cur_len;
2078 bytes_copied += cur_len;
2086 return bytes_copied;
2090 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2091 * @hdr: dump entry header struct
2096 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2098 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2100 hdr->offset = sizeof(*hdr);
2101 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2105 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2106 * @ioa_cfg: ioa config struct
2107 * @driver_dump: driver dump struct
2112 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2113 struct ipr_driver_dump *driver_dump)
2115 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2117 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2118 driver_dump->ioa_type_entry.hdr.len =
2119 sizeof(struct ipr_dump_ioa_type_entry) -
2120 sizeof(struct ipr_dump_entry_header);
2121 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2122 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2123 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2124 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2125 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2126 ucode_vpd->minor_release[1];
2127 driver_dump->hdr.num_entries++;
2131 * ipr_dump_version_data - Fill in the driver version in the dump.
2132 * @ioa_cfg: ioa config struct
2133 * @driver_dump: driver dump struct
2138 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2139 struct ipr_driver_dump *driver_dump)
2141 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2142 driver_dump->version_entry.hdr.len =
2143 sizeof(struct ipr_dump_version_entry) -
2144 sizeof(struct ipr_dump_entry_header);
2145 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2146 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2147 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2148 driver_dump->hdr.num_entries++;
2152 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2153 * @ioa_cfg: ioa config struct
2154 * @driver_dump: driver dump struct
2159 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2160 struct ipr_driver_dump *driver_dump)
2162 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2163 driver_dump->trace_entry.hdr.len =
2164 sizeof(struct ipr_dump_trace_entry) -
2165 sizeof(struct ipr_dump_entry_header);
2166 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2167 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2168 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2169 driver_dump->hdr.num_entries++;
2173 * ipr_dump_location_data - Fill in the IOA location in the dump.
2174 * @ioa_cfg: ioa config struct
2175 * @driver_dump: driver dump struct
2180 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2181 struct ipr_driver_dump *driver_dump)
2183 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2184 driver_dump->location_entry.hdr.len =
2185 sizeof(struct ipr_dump_location_entry) -
2186 sizeof(struct ipr_dump_entry_header);
2187 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2188 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2189 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2190 driver_dump->hdr.num_entries++;
2194 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2195 * @ioa_cfg: ioa config struct
2196 * @dump: dump struct
2201 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2203 unsigned long start_addr, sdt_word;
2204 unsigned long lock_flags = 0;
2205 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2206 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2207 u32 num_entries, start_off, end_off;
2208 u32 bytes_to_copy, bytes_copied, rc;
2209 struct ipr_sdt *sdt;
2214 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2216 if (ioa_cfg->sdt_state != GET_DUMP) {
2217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2221 start_addr = readl(ioa_cfg->ioa_mailbox);
2223 if (!ipr_sdt_is_fmt2(start_addr)) {
2224 dev_err(&ioa_cfg->pdev->dev,
2225 "Invalid dump table format: %lx\n", start_addr);
2226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2230 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2232 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2234 /* Initialize the overall dump header */
2235 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2236 driver_dump->hdr.num_entries = 1;
2237 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2238 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2239 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2240 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2242 ipr_dump_version_data(ioa_cfg, driver_dump);
2243 ipr_dump_location_data(ioa_cfg, driver_dump);
2244 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2245 ipr_dump_trace_data(ioa_cfg, driver_dump);
2247 /* Update dump_header */
2248 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2250 /* IOA Dump entry */
2251 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2252 ioa_dump->format = IPR_SDT_FMT2;
2253 ioa_dump->hdr.len = 0;
2254 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2255 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2257 /* First entries in sdt are actually a list of dump addresses and
2258 lengths to gather the real dump data. sdt represents the pointer
2259 to the ioa generated dump table. Dump data will be extracted based
2260 on entries in this table */
2261 sdt = &ioa_dump->sdt;
2263 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2264 sizeof(struct ipr_sdt) / sizeof(__be32));
2266 /* Smart Dump table is ready to use and the first entry is valid */
2267 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2268 dev_err(&ioa_cfg->pdev->dev,
2269 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2270 rc, be32_to_cpu(sdt->hdr.state));
2271 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2272 ioa_cfg->sdt_state = DUMP_OBTAINED;
2273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2277 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2279 if (num_entries > IPR_NUM_SDT_ENTRIES)
2280 num_entries = IPR_NUM_SDT_ENTRIES;
2282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2284 for (i = 0; i < num_entries; i++) {
2285 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2286 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2290 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2291 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2292 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2293 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2295 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2296 bytes_to_copy = end_off - start_off;
2297 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2298 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2302 /* Copy data from adapter to driver buffers */
2303 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2306 ioa_dump->hdr.len += bytes_copied;
2308 if (bytes_copied != bytes_to_copy) {
2309 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2316 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2318 /* Update dump_header */
2319 driver_dump->hdr.len += ioa_dump->hdr.len;
2321 ioa_cfg->sdt_state = DUMP_OBTAINED;
2326 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2330 * ipr_release_dump - Free adapter dump memory
2331 * @kref: kref struct
2336 static void ipr_release_dump(struct kref *kref)
2338 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2339 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2340 unsigned long lock_flags = 0;
2344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2345 ioa_cfg->dump = NULL;
2346 ioa_cfg->sdt_state = INACTIVE;
2347 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2349 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2350 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2357 * ipr_worker_thread - Worker thread
2358 * @work: ioa config struct
2360 * Called at task level from a work thread. This function takes care
2361 * of adding and removing device from the mid-layer as configuration
2362 * changes are detected by the adapter.
2367 static void ipr_worker_thread(struct work_struct *work)
2369 unsigned long lock_flags;
2370 struct ipr_resource_entry *res;
2371 struct scsi_device *sdev;
2372 struct ipr_dump *dump;
2373 struct ipr_ioa_cfg *ioa_cfg =
2374 container_of(work, struct ipr_ioa_cfg, work_q);
2375 u8 bus, target, lun;
2379 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2381 if (ioa_cfg->sdt_state == GET_DUMP) {
2382 dump = ioa_cfg->dump;
2384 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2387 kref_get(&dump->kref);
2388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2389 ipr_get_ioa_dump(ioa_cfg, dump);
2390 kref_put(&dump->kref, ipr_release_dump);
2392 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2393 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2394 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2395 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2402 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2403 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2407 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2408 if (res->del_from_ml && res->sdev) {
2411 if (!scsi_device_get(sdev)) {
2412 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2413 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2414 scsi_remove_device(sdev);
2415 scsi_device_put(sdev);
2416 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2423 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2424 if (res->add_to_ml) {
2425 bus = res->cfgte.res_addr.bus;
2426 target = res->cfgte.res_addr.target;
2427 lun = res->cfgte.res_addr.lun;
2429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2430 scsi_add_device(ioa_cfg->host, bus, target, lun);
2431 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2437 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
2441 #ifdef CONFIG_SCSI_IPR_TRACE
2443 * ipr_read_trace - Dump the adapter trace
2444 * @kobj: kobject struct
2445 * @bin_attr: bin_attribute struct
2448 * @count: buffer size
2451 * number of bytes printed to buffer
2453 static ssize_t ipr_read_trace(struct kobject *kobj,
2454 struct bin_attribute *bin_attr,
2455 char *buf, loff_t off, size_t count)
2457 struct device *dev = container_of(kobj, struct device, kobj);
2458 struct Scsi_Host *shost = class_to_shost(dev);
2459 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2460 unsigned long lock_flags = 0;
2463 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2464 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
2466 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2471 static struct bin_attribute ipr_trace_attr = {
2477 .read = ipr_read_trace,
2481 static const struct {
2482 enum ipr_cache_state state;
2484 } cache_state [] = {
2485 { CACHE_NONE, "none" },
2486 { CACHE_DISABLED, "disabled" },
2487 { CACHE_ENABLED, "enabled" }
2491 * ipr_show_write_caching - Show the write caching attribute
2492 * @dev: device struct
2496 * number of bytes printed to buffer
2498 static ssize_t ipr_show_write_caching(struct device *dev,
2499 struct device_attribute *attr, char *buf)
2501 struct Scsi_Host *shost = class_to_shost(dev);
2502 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2503 unsigned long lock_flags = 0;
2506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2507 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2508 if (cache_state[i].state == ioa_cfg->cache_state) {
2509 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2513 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2519 * ipr_store_write_caching - Enable/disable adapter write cache
2520 * @dev: device struct
2522 * @count: buffer size
2524 * This function will enable/disable adapter write cache.
2527 * count on success / other on failure
2529 static ssize_t ipr_store_write_caching(struct device *dev,
2530 struct device_attribute *attr,
2531 const char *buf, size_t count)
2533 struct Scsi_Host *shost = class_to_shost(dev);
2534 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2535 unsigned long lock_flags = 0;
2536 enum ipr_cache_state new_state = CACHE_INVALID;
2539 if (!capable(CAP_SYS_ADMIN))
2541 if (ioa_cfg->cache_state == CACHE_NONE)
2544 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2545 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2546 new_state = cache_state[i].state;
2551 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2555 if (ioa_cfg->cache_state == new_state) {
2556 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2560 ioa_cfg->cache_state = new_state;
2561 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2562 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2563 if (!ioa_cfg->in_reset_reload)
2564 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2566 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2571 static struct device_attribute ipr_ioa_cache_attr = {
2573 .name = "write_cache",
2574 .mode = S_IRUGO | S_IWUSR,
2576 .show = ipr_show_write_caching,
2577 .store = ipr_store_write_caching
2581 * ipr_show_fw_version - Show the firmware version
2582 * @dev: class device struct
2586 * number of bytes printed to buffer
2588 static ssize_t ipr_show_fw_version(struct device *dev,
2589 struct device_attribute *attr, char *buf)
2591 struct Scsi_Host *shost = class_to_shost(dev);
2592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2593 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2594 unsigned long lock_flags = 0;
2597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2598 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2599 ucode_vpd->major_release, ucode_vpd->card_type,
2600 ucode_vpd->minor_release[0],
2601 ucode_vpd->minor_release[1]);
2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2606 static struct device_attribute ipr_fw_version_attr = {
2608 .name = "fw_version",
2611 .show = ipr_show_fw_version,
2615 * ipr_show_log_level - Show the adapter's error logging level
2616 * @dev: class device struct
2620 * number of bytes printed to buffer
2622 static ssize_t ipr_show_log_level(struct device *dev,
2623 struct device_attribute *attr, char *buf)
2625 struct Scsi_Host *shost = class_to_shost(dev);
2626 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2627 unsigned long lock_flags = 0;
2630 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2631 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2632 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2637 * ipr_store_log_level - Change the adapter's error logging level
2638 * @dev: class device struct
2642 * number of bytes printed to buffer
2644 static ssize_t ipr_store_log_level(struct device *dev,
2645 struct device_attribute *attr,
2646 const char *buf, size_t count)
2648 struct Scsi_Host *shost = class_to_shost(dev);
2649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2650 unsigned long lock_flags = 0;
2652 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2653 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2654 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2658 static struct device_attribute ipr_log_level_attr = {
2660 .name = "log_level",
2661 .mode = S_IRUGO | S_IWUSR,
2663 .show = ipr_show_log_level,
2664 .store = ipr_store_log_level
2668 * ipr_store_diagnostics - IOA Diagnostics interface
2669 * @dev: device struct
2671 * @count: buffer size
2673 * This function will reset the adapter and wait a reasonable
2674 * amount of time for any errors that the adapter might log.
2677 * count on success / other on failure
2679 static ssize_t ipr_store_diagnostics(struct device *dev,
2680 struct device_attribute *attr,
2681 const char *buf, size_t count)
2683 struct Scsi_Host *shost = class_to_shost(dev);
2684 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2685 unsigned long lock_flags = 0;
2688 if (!capable(CAP_SYS_ADMIN))
2691 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2692 while(ioa_cfg->in_reset_reload) {
2693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2694 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2695 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2698 ioa_cfg->errors_logged = 0;
2699 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2701 if (ioa_cfg->in_reset_reload) {
2702 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2703 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2705 /* Wait for a second for any errors to be logged */
2708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2713 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2720 static struct device_attribute ipr_diagnostics_attr = {
2722 .name = "run_diagnostics",
2725 .store = ipr_store_diagnostics
2729 * ipr_show_adapter_state - Show the adapter's state
2730 * @class_dev: device struct
2734 * number of bytes printed to buffer
2736 static ssize_t ipr_show_adapter_state(struct device *dev,
2737 struct device_attribute *attr, char *buf)
2739 struct Scsi_Host *shost = class_to_shost(dev);
2740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2741 unsigned long lock_flags = 0;
2744 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2745 if (ioa_cfg->ioa_is_dead)
2746 len = snprintf(buf, PAGE_SIZE, "offline\n");
2748 len = snprintf(buf, PAGE_SIZE, "online\n");
2749 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2754 * ipr_store_adapter_state - Change adapter state
2755 * @dev: device struct
2757 * @count: buffer size
2759 * This function will change the adapter's state.
2762 * count on success / other on failure
2764 static ssize_t ipr_store_adapter_state(struct device *dev,
2765 struct device_attribute *attr,
2766 const char *buf, size_t count)
2768 struct Scsi_Host *shost = class_to_shost(dev);
2769 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2770 unsigned long lock_flags;
2773 if (!capable(CAP_SYS_ADMIN))
2776 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2777 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2778 ioa_cfg->ioa_is_dead = 0;
2779 ioa_cfg->reset_retries = 0;
2780 ioa_cfg->in_ioa_bringdown = 0;
2781 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2784 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2789 static struct device_attribute ipr_ioa_state_attr = {
2791 .name = "online_state",
2792 .mode = S_IRUGO | S_IWUSR,
2794 .show = ipr_show_adapter_state,
2795 .store = ipr_store_adapter_state
2799 * ipr_store_reset_adapter - Reset the adapter
2800 * @dev: device struct
2802 * @count: buffer size
2804 * This function will reset the adapter.
2807 * count on success / other on failure
2809 static ssize_t ipr_store_reset_adapter(struct device *dev,
2810 struct device_attribute *attr,
2811 const char *buf, size_t count)
2813 struct Scsi_Host *shost = class_to_shost(dev);
2814 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2815 unsigned long lock_flags;
2818 if (!capable(CAP_SYS_ADMIN))
2821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2822 if (!ioa_cfg->in_reset_reload)
2823 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2824 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2825 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2830 static struct device_attribute ipr_ioa_reset_attr = {
2832 .name = "reset_host",
2835 .store = ipr_store_reset_adapter
2839 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2840 * @buf_len: buffer length
2842 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2843 * list to use for microcode download
2846 * pointer to sglist / NULL on failure
2848 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2850 int sg_size, order, bsize_elem, num_elem, i, j;
2851 struct ipr_sglist *sglist;
2852 struct scatterlist *scatterlist;
2855 /* Get the minimum size per scatter/gather element */
2856 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2858 /* Get the actual size per element */
2859 order = get_order(sg_size);
2861 /* Determine the actual number of bytes per element */
2862 bsize_elem = PAGE_SIZE * (1 << order);
2864 /* Determine the actual number of sg entries needed */
2865 if (buf_len % bsize_elem)
2866 num_elem = (buf_len / bsize_elem) + 1;
2868 num_elem = buf_len / bsize_elem;
2870 /* Allocate a scatter/gather list for the DMA */
2871 sglist = kzalloc(sizeof(struct ipr_sglist) +
2872 (sizeof(struct scatterlist) * (num_elem - 1)),
2875 if (sglist == NULL) {
2880 scatterlist = sglist->scatterlist;
2881 sg_init_table(scatterlist, num_elem);
2883 sglist->order = order;
2884 sglist->num_sg = num_elem;
2886 /* Allocate a bunch of sg elements */
2887 for (i = 0; i < num_elem; i++) {
2888 page = alloc_pages(GFP_KERNEL, order);
2892 /* Free up what we already allocated */
2893 for (j = i - 1; j >= 0; j--)
2894 __free_pages(sg_page(&scatterlist[j]), order);
2899 sg_set_page(&scatterlist[i], page, 0, 0);
2906 * ipr_free_ucode_buffer - Frees a microcode download buffer
2907 * @p_dnld: scatter/gather list pointer
2909 * Free a DMA'able ucode download buffer previously allocated with
2910 * ipr_alloc_ucode_buffer
2915 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2919 for (i = 0; i < sglist->num_sg; i++)
2920 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
2926 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2927 * @sglist: scatter/gather list pointer
2928 * @buffer: buffer pointer
2929 * @len: buffer length
2931 * Copy a microcode image from a user buffer into a buffer allocated by
2932 * ipr_alloc_ucode_buffer
2935 * 0 on success / other on failure
2937 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2938 u8 *buffer, u32 len)
2940 int bsize_elem, i, result = 0;
2941 struct scatterlist *scatterlist;
2944 /* Determine the actual number of bytes per element */
2945 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2947 scatterlist = sglist->scatterlist;
2949 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2950 struct page *page = sg_page(&scatterlist[i]);
2953 memcpy(kaddr, buffer, bsize_elem);
2956 scatterlist[i].length = bsize_elem;
2964 if (len % bsize_elem) {
2965 struct page *page = sg_page(&scatterlist[i]);
2968 memcpy(kaddr, buffer, len % bsize_elem);
2971 scatterlist[i].length = len % bsize_elem;
2974 sglist->buffer_len = len;
2979 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2980 * @ipr_cmd: ipr command struct
2981 * @sglist: scatter/gather list
2983 * Builds a microcode download IOA data list (IOADL).
2986 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2987 struct ipr_sglist *sglist)
2989 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2990 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2991 struct scatterlist *scatterlist = sglist->scatterlist;
2994 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2995 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2996 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
2997 ioarcb->write_ioadl_len =
2998 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3000 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3001 ioadl[i].flags_and_data_len =
3002 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3004 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3007 ioadl[i-1].flags_and_data_len |=
3008 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3012 * ipr_update_ioa_ucode - Update IOA's microcode
3013 * @ioa_cfg: ioa config struct
3014 * @sglist: scatter/gather list
3016 * Initiate an adapter reset to update the IOA's microcode
3019 * 0 on success / -EIO on failure
3021 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3022 struct ipr_sglist *sglist)
3024 unsigned long lock_flags;
3026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3027 while(ioa_cfg->in_reset_reload) {
3028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3029 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3030 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3033 if (ioa_cfg->ucode_sglist) {
3034 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3035 dev_err(&ioa_cfg->pdev->dev,
3036 "Microcode download already in progress\n");
3040 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3041 sglist->num_sg, DMA_TO_DEVICE);
3043 if (!sglist->num_dma_sg) {
3044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3045 dev_err(&ioa_cfg->pdev->dev,
3046 "Failed to map microcode download buffer!\n");
3050 ioa_cfg->ucode_sglist = sglist;
3051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3053 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3056 ioa_cfg->ucode_sglist = NULL;
3057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3062 * ipr_store_update_fw - Update the firmware on the adapter
3063 * @class_dev: device struct
3065 * @count: buffer size
3067 * This function will update the firmware on the adapter.
3070 * count on success / other on failure
3072 static ssize_t ipr_store_update_fw(struct device *dev,
3073 struct device_attribute *attr,
3074 const char *buf, size_t count)
3076 struct Scsi_Host *shost = class_to_shost(dev);
3077 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3078 struct ipr_ucode_image_header *image_hdr;
3079 const struct firmware *fw_entry;
3080 struct ipr_sglist *sglist;
3083 int len, result, dnld_size;
3085 if (!capable(CAP_SYS_ADMIN))
3088 len = snprintf(fname, 99, "%s", buf);
3089 fname[len-1] = '\0';
3091 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3092 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3096 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3098 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3099 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3100 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3101 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3102 release_firmware(fw_entry);
3106 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3107 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3108 sglist = ipr_alloc_ucode_buffer(dnld_size);
3111 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3112 release_firmware(fw_entry);
3116 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3119 dev_err(&ioa_cfg->pdev->dev,
3120 "Microcode buffer copy to DMA buffer failed\n");
3124 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3129 ipr_free_ucode_buffer(sglist);
3130 release_firmware(fw_entry);
3134 static struct device_attribute ipr_update_fw_attr = {
3136 .name = "update_fw",
3139 .store = ipr_store_update_fw
3142 static struct device_attribute *ipr_ioa_attrs[] = {
3143 &ipr_fw_version_attr,
3144 &ipr_log_level_attr,
3145 &ipr_diagnostics_attr,
3146 &ipr_ioa_state_attr,
3147 &ipr_ioa_reset_attr,
3148 &ipr_update_fw_attr,
3149 &ipr_ioa_cache_attr,
3153 #ifdef CONFIG_SCSI_IPR_DUMP
3155 * ipr_read_dump - Dump the adapter
3156 * @kobj: kobject struct
3157 * @bin_attr: bin_attribute struct
3160 * @count: buffer size
3163 * number of bytes printed to buffer
3165 static ssize_t ipr_read_dump(struct kobject *kobj,
3166 struct bin_attribute *bin_attr,
3167 char *buf, loff_t off, size_t count)
3169 struct device *cdev = container_of(kobj, struct device, kobj);
3170 struct Scsi_Host *shost = class_to_shost(cdev);
3171 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3172 struct ipr_dump *dump;
3173 unsigned long lock_flags = 0;
3178 if (!capable(CAP_SYS_ADMIN))
3181 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3182 dump = ioa_cfg->dump;
3184 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3188 kref_get(&dump->kref);
3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3191 if (off > dump->driver_dump.hdr.len) {
3192 kref_put(&dump->kref, ipr_release_dump);
3196 if (off + count > dump->driver_dump.hdr.len) {
3197 count = dump->driver_dump.hdr.len - off;
3201 if (count && off < sizeof(dump->driver_dump)) {
3202 if (off + count > sizeof(dump->driver_dump))
3203 len = sizeof(dump->driver_dump) - off;
3206 src = (u8 *)&dump->driver_dump + off;
3207 memcpy(buf, src, len);
3213 off -= sizeof(dump->driver_dump);
3215 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3216 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3217 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3220 src = (u8 *)&dump->ioa_dump + off;
3221 memcpy(buf, src, len);
3227 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3230 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3231 len = PAGE_ALIGN(off) - off;
3234 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3235 src += off & ~PAGE_MASK;
3236 memcpy(buf, src, len);
3242 kref_put(&dump->kref, ipr_release_dump);
3247 * ipr_alloc_dump - Prepare for adapter dump
3248 * @ioa_cfg: ioa config struct
3251 * 0 on success / other on failure
3253 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3255 struct ipr_dump *dump;
3256 unsigned long lock_flags = 0;
3258 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3261 ipr_err("Dump memory allocation failed\n");
3265 kref_init(&dump->kref);
3266 dump->ioa_cfg = ioa_cfg;
3268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3270 if (INACTIVE != ioa_cfg->sdt_state) {
3271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 ioa_cfg->dump = dump;
3277 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3278 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3279 ioa_cfg->dump_taken = 1;
3280 schedule_work(&ioa_cfg->work_q);
3282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3288 * ipr_free_dump - Free adapter dump memory
3289 * @ioa_cfg: ioa config struct
3292 * 0 on success / other on failure
3294 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3296 struct ipr_dump *dump;
3297 unsigned long lock_flags = 0;
3301 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3302 dump = ioa_cfg->dump;
3304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 ioa_cfg->dump = NULL;
3309 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3311 kref_put(&dump->kref, ipr_release_dump);
3318 * ipr_write_dump - Setup dump state of adapter
3319 * @kobj: kobject struct
3320 * @bin_attr: bin_attribute struct
3323 * @count: buffer size
3326 * number of bytes printed to buffer
3328 static ssize_t ipr_write_dump(struct kobject *kobj,
3329 struct bin_attribute *bin_attr,
3330 char *buf, loff_t off, size_t count)
3332 struct device *cdev = container_of(kobj, struct device, kobj);
3333 struct Scsi_Host *shost = class_to_shost(cdev);
3334 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3337 if (!capable(CAP_SYS_ADMIN))
3341 rc = ipr_alloc_dump(ioa_cfg);
3342 else if (buf[0] == '0')
3343 rc = ipr_free_dump(ioa_cfg);
3353 static struct bin_attribute ipr_dump_attr = {
3356 .mode = S_IRUSR | S_IWUSR,
3359 .read = ipr_read_dump,
3360 .write = ipr_write_dump
3363 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3367 * ipr_change_queue_depth - Change the device's queue depth
3368 * @sdev: scsi device struct
3369 * @qdepth: depth to set
3370 * @reason: calling context
3375 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
3378 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3379 struct ipr_resource_entry *res;
3380 unsigned long lock_flags = 0;
3382 if (reason != SCSI_QDEPTH_DEFAULT)
3385 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3386 res = (struct ipr_resource_entry *)sdev->hostdata;
3388 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3389 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3390 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3392 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3393 return sdev->queue_depth;
3397 * ipr_change_queue_type - Change the device's queue type
3398 * @dsev: scsi device struct
3399 * @tag_type: type of tags to use
3402 * actual queue type set
3404 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3406 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3407 struct ipr_resource_entry *res;
3408 unsigned long lock_flags = 0;
3410 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3411 res = (struct ipr_resource_entry *)sdev->hostdata;
3414 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3416 * We don't bother quiescing the device here since the
3417 * adapter firmware does it for us.
3419 scsi_set_tag_type(sdev, tag_type);
3422 scsi_activate_tcq(sdev, sdev->queue_depth);
3424 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3430 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3435 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3436 * @dev: device struct
3440 * number of bytes printed to buffer
3442 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3444 struct scsi_device *sdev = to_scsi_device(dev);
3445 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3446 struct ipr_resource_entry *res;
3447 unsigned long lock_flags = 0;
3448 ssize_t len = -ENXIO;
3450 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3451 res = (struct ipr_resource_entry *)sdev->hostdata;
3453 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3458 static struct device_attribute ipr_adapter_handle_attr = {
3460 .name = "adapter_handle",
3463 .show = ipr_show_adapter_handle
3466 static struct device_attribute *ipr_dev_attrs[] = {
3467 &ipr_adapter_handle_attr,
3472 * ipr_biosparam - Return the HSC mapping
3473 * @sdev: scsi device struct
3474 * @block_device: block device pointer
3475 * @capacity: capacity of the device
3476 * @parm: Array containing returned HSC values.
3478 * This function generates the HSC parms that fdisk uses.
3479 * We want to make sure we return something that places partitions
3480 * on 4k boundaries for best performance with the IOA.
3485 static int ipr_biosparam(struct scsi_device *sdev,
3486 struct block_device *block_device,
3487 sector_t capacity, int *parm)
3495 cylinders = capacity;
3496 sector_div(cylinders, (128 * 32));
3501 parm[2] = cylinders;
3507 * ipr_find_starget - Find target based on bus/target.
3508 * @starget: scsi target struct
3511 * resource entry pointer if found / NULL if not found
3513 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3515 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3516 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3517 struct ipr_resource_entry *res;
3519 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3520 if ((res->cfgte.res_addr.bus == starget->channel) &&
3521 (res->cfgte.res_addr.target == starget->id) &&
3522 (res->cfgte.res_addr.lun == 0)) {
3530 static struct ata_port_info sata_port_info;
3533 * ipr_target_alloc - Prepare for commands to a SCSI target
3534 * @starget: scsi target struct
3536 * If the device is a SATA device, this function allocates an
3537 * ATA port with libata, else it does nothing.
3540 * 0 on success / non-0 on failure
3542 static int ipr_target_alloc(struct scsi_target *starget)
3544 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3545 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3546 struct ipr_sata_port *sata_port;
3547 struct ata_port *ap;
3548 struct ipr_resource_entry *res;
3549 unsigned long lock_flags;
3551 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3552 res = ipr_find_starget(starget);
3553 starget->hostdata = NULL;
3555 if (res && ipr_is_gata(res)) {
3556 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3557 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3561 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3563 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3564 sata_port->ioa_cfg = ioa_cfg;
3566 sata_port->res = res;
3568 res->sata_port = sata_port;
3569 ap->private_data = sata_port;
3570 starget->hostdata = sata_port;
3576 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3582 * ipr_target_destroy - Destroy a SCSI target
3583 * @starget: scsi target struct
3585 * If the device was a SATA device, this function frees the libata
3586 * ATA port, else it does nothing.
3589 static void ipr_target_destroy(struct scsi_target *starget)
3591 struct ipr_sata_port *sata_port = starget->hostdata;
3594 starget->hostdata = NULL;
3595 ata_sas_port_destroy(sata_port->ap);
3601 * ipr_find_sdev - Find device based on bus/target/lun.
3602 * @sdev: scsi device struct
3605 * resource entry pointer if found / NULL if not found
3607 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3609 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3610 struct ipr_resource_entry *res;
3612 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3613 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3614 (res->cfgte.res_addr.target == sdev->id) &&
3615 (res->cfgte.res_addr.lun == sdev->lun))
3623 * ipr_slave_destroy - Unconfigure a SCSI device
3624 * @sdev: scsi device struct
3629 static void ipr_slave_destroy(struct scsi_device *sdev)
3631 struct ipr_resource_entry *res;
3632 struct ipr_ioa_cfg *ioa_cfg;
3633 unsigned long lock_flags = 0;
3635 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3637 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3638 res = (struct ipr_resource_entry *) sdev->hostdata;
3641 ata_port_disable(res->sata_port->ap);
3642 sdev->hostdata = NULL;
3644 res->sata_port = NULL;
3646 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3650 * ipr_slave_configure - Configure a SCSI device
3651 * @sdev: scsi device struct
3653 * This function configures the specified scsi device.
3658 static int ipr_slave_configure(struct scsi_device *sdev)
3660 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3661 struct ipr_resource_entry *res;
3662 struct ata_port *ap = NULL;
3663 unsigned long lock_flags = 0;
3665 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3666 res = sdev->hostdata;
3668 if (ipr_is_af_dasd_device(res))
3669 sdev->type = TYPE_RAID;
3670 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3671 sdev->scsi_level = 4;
3672 sdev->no_uld_attach = 1;
3674 if (ipr_is_vset_device(res)) {
3675 blk_queue_rq_timeout(sdev->request_queue,
3676 IPR_VSET_RW_TIMEOUT);
3677 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3679 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3680 sdev->allow_restart = 1;
3681 if (ipr_is_gata(res) && res->sata_port)
3682 ap = res->sata_port->ap;
3683 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3686 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3687 ata_sas_slave_configure(sdev, ap);
3689 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3692 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3697 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3698 * @sdev: scsi device struct
3700 * This function initializes an ATA port so that future commands
3701 * sent through queuecommand will work.
3706 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3708 struct ipr_sata_port *sata_port = NULL;
3712 if (sdev->sdev_target)
3713 sata_port = sdev->sdev_target->hostdata;
3715 rc = ata_sas_port_init(sata_port->ap);
3717 ipr_slave_destroy(sdev);
3724 * ipr_slave_alloc - Prepare for commands to a device.
3725 * @sdev: scsi device struct
3727 * This function saves a pointer to the resource entry
3728 * in the scsi device struct if the device exists. We
3729 * can then use this pointer in ipr_queuecommand when
3730 * handling new commands.
3733 * 0 on success / -ENXIO if device does not exist
3735 static int ipr_slave_alloc(struct scsi_device *sdev)
3737 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3738 struct ipr_resource_entry *res;
3739 unsigned long lock_flags;
3742 sdev->hostdata = NULL;
3744 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3746 res = ipr_find_sdev(sdev);
3751 sdev->hostdata = res;
3752 if (!ipr_is_naca_model(res))
3753 res->needs_sync_complete = 1;
3755 if (ipr_is_gata(res)) {
3756 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3757 return ipr_ata_slave_alloc(sdev);
3761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3767 * ipr_eh_host_reset - Reset the host adapter
3768 * @scsi_cmd: scsi command struct
3773 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3775 struct ipr_ioa_cfg *ioa_cfg;
3779 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3781 dev_err(&ioa_cfg->pdev->dev,
3782 "Adapter being reset as a result of error recovery.\n");
3784 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3785 ioa_cfg->sdt_state = GET_DUMP;
3787 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3793 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3797 spin_lock_irq(cmd->device->host->host_lock);
3798 rc = __ipr_eh_host_reset(cmd);
3799 spin_unlock_irq(cmd->device->host->host_lock);
3805 * ipr_device_reset - Reset the device
3806 * @ioa_cfg: ioa config struct
3807 * @res: resource entry struct
3809 * This function issues a device reset to the affected device.
3810 * If the device is a SCSI device, a LUN reset will be sent
3811 * to the device first. If that does not work, a target reset
3812 * will be sent. If the device is a SATA device, a PHY reset will
3816 * 0 on success / non-zero on failure
3818 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3819 struct ipr_resource_entry *res)
3821 struct ipr_cmnd *ipr_cmd;
3822 struct ipr_ioarcb *ioarcb;
3823 struct ipr_cmd_pkt *cmd_pkt;
3824 struct ipr_ioarcb_ata_regs *regs;
3828 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3829 ioarcb = &ipr_cmd->ioarcb;
3830 cmd_pkt = &ioarcb->cmd_pkt;
3831 regs = &ioarcb->add_data.u.regs;
3833 ioarcb->res_handle = res->cfgte.res_handle;
3834 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3835 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3836 if (ipr_is_gata(res)) {
3837 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3838 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3839 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3842 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3843 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3844 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3845 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3846 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3847 sizeof(struct ipr_ioasa_gata));
3850 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3854 * ipr_sata_reset - Reset the SATA port
3855 * @link: SATA link to reset
3856 * @classes: class of the attached device
3858 * This function issues a SATA phy reset to the affected ATA link.
3861 * 0 on success / non-zero on failure
3863 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
3864 unsigned long deadline)
3866 struct ipr_sata_port *sata_port = link->ap->private_data;
3867 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3868 struct ipr_resource_entry *res;
3869 unsigned long lock_flags = 0;
3873 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3874 while(ioa_cfg->in_reset_reload) {
3875 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3876 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3877 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3880 res = sata_port->res;
3882 rc = ipr_device_reset(ioa_cfg, res);
3883 switch(res->cfgte.proto) {
3884 case IPR_PROTO_SATA:
3885 case IPR_PROTO_SAS_STP:
3886 *classes = ATA_DEV_ATA;
3888 case IPR_PROTO_SATA_ATAPI:
3889 case IPR_PROTO_SAS_STP_ATAPI:
3890 *classes = ATA_DEV_ATAPI;
3893 *classes = ATA_DEV_UNKNOWN;
3898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3904 * ipr_eh_dev_reset - Reset the device
3905 * @scsi_cmd: scsi command struct
3907 * This function issues a device reset to the affected device.
3908 * A LUN reset will be sent to the device first. If that does
3909 * not work, a target reset will be sent.
3914 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3916 struct ipr_cmnd *ipr_cmd;
3917 struct ipr_ioa_cfg *ioa_cfg;
3918 struct ipr_resource_entry *res;
3919 struct ata_port *ap;
3923 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3924 res = scsi_cmd->device->hostdata;
3930 * If we are currently going through reset/reload, return failed. This will force the
3931 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3934 if (ioa_cfg->in_reset_reload)
3936 if (ioa_cfg->ioa_is_dead)
3939 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3940 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3941 if (ipr_cmd->scsi_cmd)
3942 ipr_cmd->done = ipr_scsi_eh_done;
3944 ipr_cmd->done = ipr_sata_eh_done;
3945 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3946 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3947 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3952 res->resetting_device = 1;
3953 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3955 if (ipr_is_gata(res) && res->sata_port) {
3956 ap = res->sata_port->ap;
3957 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3958 ata_std_error_handler(ap);
3959 spin_lock_irq(scsi_cmd->device->host->host_lock);
3961 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3962 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3968 rc = ipr_device_reset(ioa_cfg, res);
3969 res->resetting_device = 0;
3972 return (rc ? FAILED : SUCCESS);
3975 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3979 spin_lock_irq(cmd->device->host->host_lock);
3980 rc = __ipr_eh_dev_reset(cmd);
3981 spin_unlock_irq(cmd->device->host->host_lock);
3987 * ipr_bus_reset_done - Op done function for bus reset.
3988 * @ipr_cmd: ipr command struct
3990 * This function is the op done function for a bus reset
3995 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3997 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3998 struct ipr_resource_entry *res;
4001 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4002 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
4003 sizeof(res->cfgte.res_handle))) {
4004 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
4010 * If abort has not completed, indicate the reset has, else call the
4011 * abort's done function to wake the sleeping eh thread
4013 if (ipr_cmd->sibling->sibling)
4014 ipr_cmd->sibling->sibling = NULL;
4016 ipr_cmd->sibling->done(ipr_cmd->sibling);
4018 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4023 * ipr_abort_timeout - An abort task has timed out
4024 * @ipr_cmd: ipr command struct
4026 * This function handles when an abort task times out. If this
4027 * happens we issue a bus reset since we have resources tied
4028 * up that must be freed before returning to the midlayer.
4033 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4035 struct ipr_cmnd *reset_cmd;
4036 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4037 struct ipr_cmd_pkt *cmd_pkt;
4038 unsigned long lock_flags = 0;
4041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4042 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4043 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4047 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4048 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4049 ipr_cmd->sibling = reset_cmd;
4050 reset_cmd->sibling = ipr_cmd;
4051 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4052 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4053 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4054 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4055 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4057 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4063 * ipr_cancel_op - Cancel specified op
4064 * @scsi_cmd: scsi command struct
4066 * This function cancels specified op.
4071 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4073 struct ipr_cmnd *ipr_cmd;
4074 struct ipr_ioa_cfg *ioa_cfg;
4075 struct ipr_resource_entry *res;
4076 struct ipr_cmd_pkt *cmd_pkt;
4081 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4082 res = scsi_cmd->device->hostdata;
4084 /* If we are currently going through reset/reload, return failed.
4085 * This will force the mid-layer to call ipr_eh_host_reset,
4086 * which will then go to sleep and wait for the reset to complete
4088 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4090 if (!res || !ipr_is_gscsi(res))
4093 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4094 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4095 ipr_cmd->done = ipr_scsi_eh_done;
4104 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4105 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4106 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4107 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4108 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4109 ipr_cmd->u.sdev = scsi_cmd->device;
4111 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4113 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4114 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4117 * If the abort task timed out and we sent a bus reset, we will get
4118 * one the following responses to the abort
4120 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4125 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4126 if (!ipr_is_naca_model(res))
4127 res->needs_sync_complete = 1;
4130 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4134 * ipr_eh_abort - Abort a single op
4135 * @scsi_cmd: scsi command struct
4140 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4142 unsigned long flags;
4147 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4148 rc = ipr_cancel_op(scsi_cmd);
4149 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4156 * ipr_handle_other_interrupt - Handle "other" interrupts
4157 * @ioa_cfg: ioa config struct
4158 * @int_reg: interrupt register
4161 * IRQ_NONE / IRQ_HANDLED
4163 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4164 volatile u32 int_reg)
4166 irqreturn_t rc = IRQ_HANDLED;
4168 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4169 /* Mask the interrupt */
4170 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4172 /* Clear the interrupt */
4173 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4174 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4176 list_del(&ioa_cfg->reset_cmd->queue);
4177 del_timer(&ioa_cfg->reset_cmd->timer);
4178 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4180 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4181 ioa_cfg->ioa_unit_checked = 1;
4183 dev_err(&ioa_cfg->pdev->dev,
4184 "Permanent IOA failure. 0x%08X\n", int_reg);
4186 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4187 ioa_cfg->sdt_state = GET_DUMP;
4189 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4190 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4197 * ipr_isr - Interrupt service routine
4199 * @devp: pointer to ioa config struct
4202 * IRQ_NONE / IRQ_HANDLED
4204 static irqreturn_t ipr_isr(int irq, void *devp)
4206 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4207 unsigned long lock_flags = 0;
4208 volatile u32 int_reg, int_mask_reg;
4211 struct ipr_cmnd *ipr_cmd;
4212 irqreturn_t rc = IRQ_NONE;
4214 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4216 /* If interrupts are disabled, ignore the interrupt */
4217 if (!ioa_cfg->allow_interrupts) {
4218 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4222 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4223 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4225 /* If an interrupt on the adapter did not occur, ignore it */
4226 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4227 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4234 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4235 ioa_cfg->toggle_bit) {
4237 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4238 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4240 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4241 ioa_cfg->errors_logged++;
4242 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4244 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4245 ioa_cfg->sdt_state = GET_DUMP;
4247 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4248 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4252 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4254 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4256 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4258 list_del(&ipr_cmd->queue);
4259 del_timer(&ipr_cmd->timer);
4260 ipr_cmd->done(ipr_cmd);
4264 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4265 ioa_cfg->hrrq_curr++;
4267 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4268 ioa_cfg->toggle_bit ^= 1u;
4272 if (ipr_cmd != NULL) {
4273 /* Clear the PCI interrupt */
4274 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4275 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4280 if (unlikely(rc == IRQ_NONE))
4281 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4283 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4288 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4289 * @ioa_cfg: ioa config struct
4290 * @ipr_cmd: ipr command struct
4293 * 0 on success / -1 on failure
4295 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4296 struct ipr_cmnd *ipr_cmd)
4299 struct scatterlist *sg;
4301 u32 ioadl_flags = 0;
4302 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4303 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4304 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4306 length = scsi_bufflen(scsi_cmd);
4310 nseg = scsi_dma_map(scsi_cmd);
4312 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4316 ipr_cmd->dma_use_sg = nseg;
4318 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4319 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4320 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4321 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4322 ioarcb->write_ioadl_len =
4323 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4324 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4325 ioadl_flags = IPR_IOADL_FLAGS_READ;
4326 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4327 ioarcb->read_ioadl_len =
4328 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4331 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4332 ioadl = ioarcb->add_data.u.ioadl;
4333 ioarcb->write_ioadl_addr =
4334 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4335 offsetof(struct ipr_ioarcb, add_data));
4336 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4339 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4340 ioadl[i].flags_and_data_len =
4341 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4342 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4345 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4350 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4351 * @scsi_cmd: scsi command struct
4356 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4359 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4361 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4363 case MSG_SIMPLE_TAG:
4364 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4367 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4369 case MSG_ORDERED_TAG:
4370 rc = IPR_FLAGS_LO_ORDERED_TASK;
4379 * ipr_erp_done - Process completion of ERP for a device
4380 * @ipr_cmd: ipr command struct
4382 * This function copies the sense buffer into the scsi_cmd
4383 * struct and pushes the scsi_done function.
4388 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4390 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4391 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4392 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4393 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4395 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4396 scsi_cmd->result |= (DID_ERROR << 16);
4397 scmd_printk(KERN_ERR, scsi_cmd,
4398 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4400 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4401 SCSI_SENSE_BUFFERSIZE);
4405 if (!ipr_is_naca_model(res))
4406 res->needs_sync_complete = 1;
4409 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4410 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4411 scsi_cmd->scsi_done(scsi_cmd);
4415 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4416 * @ipr_cmd: ipr command struct
4421 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4423 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4424 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4425 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4427 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4428 ioarcb->write_data_transfer_length = 0;
4429 ioarcb->read_data_transfer_length = 0;
4430 ioarcb->write_ioadl_len = 0;
4431 ioarcb->read_ioadl_len = 0;
4433 ioasa->residual_data_len = 0;
4434 ioarcb->write_ioadl_addr =
4435 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4436 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4440 * ipr_erp_request_sense - Send request sense to a device
4441 * @ipr_cmd: ipr command struct
4443 * This function sends a request sense to a device as a result
4444 * of a check condition.
4449 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4451 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4452 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4454 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4455 ipr_erp_done(ipr_cmd);
4459 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4461 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4462 cmd_pkt->cdb[0] = REQUEST_SENSE;
4463 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4464 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4465 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4466 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4468 ipr_cmd->ioadl[0].flags_and_data_len =
4469 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4470 ipr_cmd->ioadl[0].address =
4471 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4473 ipr_cmd->ioarcb.read_ioadl_len =
4474 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4475 ipr_cmd->ioarcb.read_data_transfer_length =
4476 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4478 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4479 IPR_REQUEST_SENSE_TIMEOUT * 2);
4483 * ipr_erp_cancel_all - Send cancel all to a device
4484 * @ipr_cmd: ipr command struct
4486 * This function sends a cancel all to a device to clear the
4487 * queue. If we are running TCQ on the device, QERR is set to 1,
4488 * which means all outstanding ops have been dropped on the floor.
4489 * Cancel all will return them to us.
4494 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4496 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4497 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4498 struct ipr_cmd_pkt *cmd_pkt;
4502 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4504 if (!scsi_get_tag_type(scsi_cmd->device)) {
4505 ipr_erp_request_sense(ipr_cmd);
4509 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4510 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4511 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4513 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4514 IPR_CANCEL_ALL_TIMEOUT);
4518 * ipr_dump_ioasa - Dump contents of IOASA
4519 * @ioa_cfg: ioa config struct
4520 * @ipr_cmd: ipr command struct
4521 * @res: resource entry struct
4523 * This function is invoked by the interrupt handler when ops
4524 * fail. It will log the IOASA if appropriate. Only called
4530 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4531 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4535 u32 ioasc, fd_ioasc;
4536 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4537 __be32 *ioasa_data = (__be32 *)ioasa;
4540 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4541 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4546 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4549 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4550 error_index = ipr_get_error(fd_ioasc);
4552 error_index = ipr_get_error(ioasc);
4554 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4555 /* Don't log an error if the IOA already logged one */
4556 if (ioasa->ilid != 0)
4559 if (!ipr_is_gscsi(res))
4562 if (ipr_error_table[error_index].log_ioasa == 0)
4566 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4568 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4569 data_len = sizeof(struct ipr_ioasa);
4571 data_len = be16_to_cpu(ioasa->ret_stat_len);
4573 ipr_err("IOASA Dump:\n");
4575 for (i = 0; i < data_len / 4; i += 4) {
4576 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4577 be32_to_cpu(ioasa_data[i]),
4578 be32_to_cpu(ioasa_data[i+1]),
4579 be32_to_cpu(ioasa_data[i+2]),
4580 be32_to_cpu(ioasa_data[i+3]));
4585 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4587 * @sense_buf: sense data buffer
4592 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4595 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4596 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4597 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4598 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4600 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4602 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4605 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4607 if (ipr_is_vset_device(res) &&
4608 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4609 ioasa->u.vset.failing_lba_hi != 0) {
4610 sense_buf[0] = 0x72;
4611 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4612 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4613 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4617 sense_buf[9] = 0x0A;
4618 sense_buf[10] = 0x80;
4620 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4622 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4623 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4624 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4625 sense_buf[15] = failing_lba & 0x000000ff;
4627 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4629 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4630 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4631 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4632 sense_buf[19] = failing_lba & 0x000000ff;
4634 sense_buf[0] = 0x70;
4635 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4636 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4637 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4639 /* Illegal request */
4640 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4641 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4642 sense_buf[7] = 10; /* additional length */
4644 /* IOARCB was in error */
4645 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4646 sense_buf[15] = 0xC0;
4647 else /* Parameter data was invalid */
4648 sense_buf[15] = 0x80;
4651 ((IPR_FIELD_POINTER_MASK &
4652 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4654 (IPR_FIELD_POINTER_MASK &
4655 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4657 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4658 if (ipr_is_vset_device(res))
4659 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4661 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4663 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4664 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4665 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4666 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4667 sense_buf[6] = failing_lba & 0x000000ff;
4670 sense_buf[7] = 6; /* additional length */
4676 * ipr_get_autosense - Copy autosense data to sense buffer
4677 * @ipr_cmd: ipr command struct
4679 * This function copies the autosense buffer to the buffer
4680 * in the scsi_cmd, if there is autosense available.
4683 * 1 if autosense was available / 0 if not
4685 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4687 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4689 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4692 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4693 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4694 SCSI_SENSE_BUFFERSIZE));
4699 * ipr_erp_start - Process an error response for a SCSI op
4700 * @ioa_cfg: ioa config struct
4701 * @ipr_cmd: ipr command struct
4703 * This function determines whether or not to initiate ERP
4704 * on the affected device.
4709 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4710 struct ipr_cmnd *ipr_cmd)
4712 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4713 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4714 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4715 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4718 ipr_scsi_eh_done(ipr_cmd);
4722 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4723 ipr_gen_sense(ipr_cmd);
4725 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4727 switch (masked_ioasc) {
4728 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4729 if (ipr_is_naca_model(res))
4730 scsi_cmd->result |= (DID_ABORT << 16);
4732 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4734 case IPR_IOASC_IR_RESOURCE_HANDLE:
4735 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4736 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4738 case IPR_IOASC_HW_SEL_TIMEOUT:
4739 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4740 if (!ipr_is_naca_model(res))
4741 res->needs_sync_complete = 1;
4743 case IPR_IOASC_SYNC_REQUIRED:
4745 res->needs_sync_complete = 1;
4746 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4748 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4749 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4750 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4752 case IPR_IOASC_BUS_WAS_RESET:
4753 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4755 * Report the bus reset and ask for a retry. The device
4756 * will give CC/UA the next command.
4758 if (!res->resetting_device)
4759 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4760 scsi_cmd->result |= (DID_ERROR << 16);
4761 if (!ipr_is_naca_model(res))
4762 res->needs_sync_complete = 1;
4764 case IPR_IOASC_HW_DEV_BUS_STATUS:
4765 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4766 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4767 if (!ipr_get_autosense(ipr_cmd)) {
4768 if (!ipr_is_naca_model(res)) {
4769 ipr_erp_cancel_all(ipr_cmd);
4774 if (!ipr_is_naca_model(res))
4775 res->needs_sync_complete = 1;
4777 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4780 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4781 scsi_cmd->result |= (DID_ERROR << 16);
4782 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4783 res->needs_sync_complete = 1;
4787 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4788 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4789 scsi_cmd->scsi_done(scsi_cmd);
4793 * ipr_scsi_done - mid-layer done function
4794 * @ipr_cmd: ipr command struct
4796 * This function is invoked by the interrupt handler for
4797 * ops generated by the SCSI mid-layer
4802 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4804 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4805 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4806 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4808 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4810 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4811 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4812 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4813 scsi_cmd->scsi_done(scsi_cmd);
4815 ipr_erp_start(ioa_cfg, ipr_cmd);
4819 * ipr_queuecommand - Queue a mid-layer request
4820 * @scsi_cmd: scsi command struct
4821 * @done: done function
4823 * This function queues a request generated by the mid-layer.
4827 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4828 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4830 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4831 void (*done) (struct scsi_cmnd *))
4833 struct ipr_ioa_cfg *ioa_cfg;
4834 struct ipr_resource_entry *res;
4835 struct ipr_ioarcb *ioarcb;
4836 struct ipr_cmnd *ipr_cmd;
4839 scsi_cmd->scsi_done = done;
4840 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4841 res = scsi_cmd->device->hostdata;
4842 scsi_cmd->result = (DID_OK << 16);
4845 * We are currently blocking all devices due to a host reset
4846 * We have told the host to stop giving us new requests, but
4847 * ERP ops don't count. FIXME
4849 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4850 return SCSI_MLQUEUE_HOST_BUSY;
4853 * FIXME - Create scsi_set_host_offline interface
4854 * and the ioa_is_dead check can be removed
4856 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4857 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4858 scsi_cmd->result = (DID_NO_CONNECT << 16);
4859 scsi_cmd->scsi_done(scsi_cmd);
4863 if (ipr_is_gata(res) && res->sata_port)
4864 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4866 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4867 ioarcb = &ipr_cmd->ioarcb;
4868 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4870 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4871 ipr_cmd->scsi_cmd = scsi_cmd;
4872 ioarcb->res_handle = res->cfgte.res_handle;
4873 ipr_cmd->done = ipr_scsi_done;
4874 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4876 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4877 if (scsi_cmd->underflow == 0)
4878 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4880 if (res->needs_sync_complete) {
4881 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4882 res->needs_sync_complete = 0;
4885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4886 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4887 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4888 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4891 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4892 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4893 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4895 if (likely(rc == 0))
4896 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4898 if (likely(rc == 0)) {
4900 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4901 ioa_cfg->regs.ioarrin_reg);
4903 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4904 return SCSI_MLQUEUE_HOST_BUSY;
4911 * ipr_ioctl - IOCTL handler
4912 * @sdev: scsi device struct
4917 * 0 on success / other on failure
4919 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4921 struct ipr_resource_entry *res;
4923 res = (struct ipr_resource_entry *)sdev->hostdata;
4924 if (res && ipr_is_gata(res)) {
4925 if (cmd == HDIO_GET_IDENTITY)
4927 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
4934 * ipr_info - Get information about the card/driver
4935 * @scsi_host: scsi host struct
4938 * pointer to buffer with description string
4940 static const char * ipr_ioa_info(struct Scsi_Host *host)
4942 static char buffer[512];
4943 struct ipr_ioa_cfg *ioa_cfg;
4944 unsigned long lock_flags = 0;
4946 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4948 spin_lock_irqsave(host->host_lock, lock_flags);
4949 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4950 spin_unlock_irqrestore(host->host_lock, lock_flags);
4955 static struct scsi_host_template driver_template = {
4956 .module = THIS_MODULE,
4958 .info = ipr_ioa_info,
4960 .queuecommand = ipr_queuecommand,
4961 .eh_abort_handler = ipr_eh_abort,
4962 .eh_device_reset_handler = ipr_eh_dev_reset,
4963 .eh_host_reset_handler = ipr_eh_host_reset,
4964 .slave_alloc = ipr_slave_alloc,
4965 .slave_configure = ipr_slave_configure,
4966 .slave_destroy = ipr_slave_destroy,
4967 .target_alloc = ipr_target_alloc,
4968 .target_destroy = ipr_target_destroy,
4969 .change_queue_depth = ipr_change_queue_depth,
4970 .change_queue_type = ipr_change_queue_type,
4971 .bios_param = ipr_biosparam,
4972 .can_queue = IPR_MAX_COMMANDS,
4974 .sg_tablesize = IPR_MAX_SGLIST,
4975 .max_sectors = IPR_IOA_MAX_SECTORS,
4976 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4977 .use_clustering = ENABLE_CLUSTERING,
4978 .shost_attrs = ipr_ioa_attrs,
4979 .sdev_attrs = ipr_dev_attrs,
4980 .proc_name = IPR_NAME
4984 * ipr_ata_phy_reset - libata phy_reset handler
4985 * @ap: ata port to reset
4988 static void ipr_ata_phy_reset(struct ata_port *ap)
4990 unsigned long flags;
4991 struct ipr_sata_port *sata_port = ap->private_data;
4992 struct ipr_resource_entry *res = sata_port->res;
4993 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4997 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4998 while(ioa_cfg->in_reset_reload) {
4999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5000 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5001 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5004 if (!ioa_cfg->allow_cmds)
5007 rc = ipr_device_reset(ioa_cfg, res);
5010 ata_port_disable(ap);
5014 switch(res->cfgte.proto) {
5015 case IPR_PROTO_SATA:
5016 case IPR_PROTO_SAS_STP:
5017 ap->link.device[0].class = ATA_DEV_ATA;
5019 case IPR_PROTO_SATA_ATAPI:
5020 case IPR_PROTO_SAS_STP_ATAPI:
5021 ap->link.device[0].class = ATA_DEV_ATAPI;
5024 ap->link.device[0].class = ATA_DEV_UNKNOWN;
5025 ata_port_disable(ap);
5030 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5035 * ipr_ata_post_internal - Cleanup after an internal command
5036 * @qc: ATA queued command
5041 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5043 struct ipr_sata_port *sata_port = qc->ap->private_data;
5044 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5045 struct ipr_cmnd *ipr_cmd;
5046 unsigned long flags;
5048 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5049 while(ioa_cfg->in_reset_reload) {
5050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5051 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5052 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5055 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5056 if (ipr_cmd->qc == qc) {
5057 ipr_device_reset(ioa_cfg, sata_port->res);
5061 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5065 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5066 * @regs: destination
5067 * @tf: source ATA taskfile
5072 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5073 struct ata_taskfile *tf)
5075 regs->feature = tf->feature;
5076 regs->nsect = tf->nsect;
5077 regs->lbal = tf->lbal;
5078 regs->lbam = tf->lbam;
5079 regs->lbah = tf->lbah;
5080 regs->device = tf->device;
5081 regs->command = tf->command;
5082 regs->hob_feature = tf->hob_feature;
5083 regs->hob_nsect = tf->hob_nsect;
5084 regs->hob_lbal = tf->hob_lbal;
5085 regs->hob_lbam = tf->hob_lbam;
5086 regs->hob_lbah = tf->hob_lbah;
5087 regs->ctl = tf->ctl;
5091 * ipr_sata_done - done function for SATA commands
5092 * @ipr_cmd: ipr command struct
5094 * This function is invoked by the interrupt handler for
5095 * ops generated by the SCSI mid-layer to SATA devices
5100 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5102 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5103 struct ata_queued_cmd *qc = ipr_cmd->qc;
5104 struct ipr_sata_port *sata_port = qc->ap->private_data;
5105 struct ipr_resource_entry *res = sata_port->res;
5106 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5108 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5109 sizeof(struct ipr_ioasa_gata));
5110 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5112 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5113 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5114 res->cfgte.res_addr.target);
5116 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5117 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5119 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5120 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5121 ata_qc_complete(qc);
5125 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5126 * @ipr_cmd: ipr command struct
5127 * @qc: ATA queued command
5130 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5131 struct ata_queued_cmd *qc)
5133 u32 ioadl_flags = 0;
5134 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5135 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5136 struct ipr_ioadl_desc *last_ioadl = NULL;
5137 int len = qc->nbytes;
5138 struct scatterlist *sg;
5144 if (qc->dma_dir == DMA_TO_DEVICE) {
5145 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5146 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5147 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5148 ioarcb->write_ioadl_len =
5149 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5150 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5151 ioadl_flags = IPR_IOADL_FLAGS_READ;
5152 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5153 ioarcb->read_ioadl_len =
5154 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5157 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5158 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5159 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5165 if (likely(last_ioadl))
5166 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5170 * ipr_qc_issue - Issue a SATA qc to a device
5171 * @qc: queued command
5176 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5178 struct ata_port *ap = qc->ap;
5179 struct ipr_sata_port *sata_port = ap->private_data;
5180 struct ipr_resource_entry *res = sata_port->res;
5181 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5182 struct ipr_cmnd *ipr_cmd;
5183 struct ipr_ioarcb *ioarcb;
5184 struct ipr_ioarcb_ata_regs *regs;
5186 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5187 return AC_ERR_SYSTEM;
5189 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5190 ioarcb = &ipr_cmd->ioarcb;
5191 regs = &ioarcb->add_data.u.regs;
5193 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5194 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5196 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5198 ipr_cmd->done = ipr_sata_done;
5199 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5200 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5201 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5202 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5203 ipr_cmd->dma_use_sg = qc->n_elem;
5205 ipr_build_ata_ioadl(ipr_cmd, qc);
5206 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5207 ipr_copy_sata_tf(regs, &qc->tf);
5208 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5209 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5211 switch (qc->tf.protocol) {
5212 case ATA_PROT_NODATA:
5217 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5220 case ATAPI_PROT_PIO:
5221 case ATAPI_PROT_NODATA:
5222 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5225 case ATAPI_PROT_DMA:
5226 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5227 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5232 return AC_ERR_INVALID;
5236 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5237 ioa_cfg->regs.ioarrin_reg);
5242 * ipr_qc_fill_rtf - Read result TF
5243 * @qc: ATA queued command
5248 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
5250 struct ipr_sata_port *sata_port = qc->ap->private_data;
5251 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5252 struct ata_taskfile *tf = &qc->result_tf;
5254 tf->feature = g->error;
5255 tf->nsect = g->nsect;
5259 tf->device = g->device;
5260 tf->command = g->status;
5261 tf->hob_nsect = g->hob_nsect;
5262 tf->hob_lbal = g->hob_lbal;
5263 tf->hob_lbam = g->hob_lbam;
5264 tf->hob_lbah = g->hob_lbah;
5265 tf->ctl = g->alt_status;
5270 static struct ata_port_operations ipr_sata_ops = {
5271 .phy_reset = ipr_ata_phy_reset,
5272 .hardreset = ipr_sata_reset,
5273 .post_internal_cmd = ipr_ata_post_internal,
5274 .qc_prep = ata_noop_qc_prep,
5275 .qc_issue = ipr_qc_issue,
5276 .qc_fill_rtf = ipr_qc_fill_rtf,
5277 .port_start = ata_sas_port_start,
5278 .port_stop = ata_sas_port_stop
5281 static struct ata_port_info sata_port_info = {
5282 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5283 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5284 .pio_mask = 0x10, /* pio4 */
5286 .udma_mask = 0x7f, /* udma0-6 */
5287 .port_ops = &ipr_sata_ops
5290 #ifdef CONFIG_PPC_PSERIES
5291 static const u16 ipr_blocked_processors[] = {
5303 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5304 * @ioa_cfg: ioa cfg struct
5306 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5307 * certain pSeries hardware. This function determines if the given
5308 * adapter is in one of these confgurations or not.
5311 * 1 if adapter is not supported / 0 if adapter is supported
5313 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5317 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5318 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5319 if (__is_processor(ipr_blocked_processors[i]))
5326 #define ipr_invalid_adapter(ioa_cfg) 0
5330 * ipr_ioa_bringdown_done - IOA bring down completion.
5331 * @ipr_cmd: ipr command struct
5333 * This function processes the completion of an adapter bring down.
5334 * It wakes any reset sleepers.
5339 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5341 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5344 ioa_cfg->in_reset_reload = 0;
5345 ioa_cfg->reset_retries = 0;
5346 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5347 wake_up_all(&ioa_cfg->reset_wait_q);
5349 spin_unlock_irq(ioa_cfg->host->host_lock);
5350 scsi_unblock_requests(ioa_cfg->host);
5351 spin_lock_irq(ioa_cfg->host->host_lock);
5354 return IPR_RC_JOB_RETURN;
5358 * ipr_ioa_reset_done - IOA reset completion.
5359 * @ipr_cmd: ipr command struct
5361 * This function processes the completion of an adapter reset.
5362 * It schedules any necessary mid-layer add/removes and
5363 * wakes any reset sleepers.
5368 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5370 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5371 struct ipr_resource_entry *res;
5372 struct ipr_hostrcb *hostrcb, *temp;
5376 ioa_cfg->in_reset_reload = 0;
5377 ioa_cfg->allow_cmds = 1;
5378 ioa_cfg->reset_cmd = NULL;
5379 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5381 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5382 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5387 schedule_work(&ioa_cfg->work_q);
5389 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5390 list_del(&hostrcb->queue);
5391 if (i++ < IPR_NUM_LOG_HCAMS)
5392 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5394 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5397 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5398 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5400 ioa_cfg->reset_retries = 0;
5401 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5402 wake_up_all(&ioa_cfg->reset_wait_q);
5404 spin_unlock(ioa_cfg->host->host_lock);
5405 scsi_unblock_requests(ioa_cfg->host);
5406 spin_lock(ioa_cfg->host->host_lock);
5408 if (!ioa_cfg->allow_cmds)
5409 scsi_block_requests(ioa_cfg->host);
5412 return IPR_RC_JOB_RETURN;
5416 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5417 * @supported_dev: supported device struct
5418 * @vpids: vendor product id struct
5423 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5424 struct ipr_std_inq_vpids *vpids)
5426 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5427 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5428 supported_dev->num_records = 1;
5429 supported_dev->data_length =
5430 cpu_to_be16(sizeof(struct ipr_supported_device));
5431 supported_dev->reserved = 0;
5435 * ipr_set_supported_devs - Send Set Supported Devices for a device
5436 * @ipr_cmd: ipr command struct
5438 * This function send a Set Supported Devices to the adapter
5441 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5443 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5445 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5446 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5447 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5448 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5449 struct ipr_resource_entry *res = ipr_cmd->u.res;
5451 ipr_cmd->job_step = ipr_ioa_reset_done;
5453 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5454 if (!ipr_is_scsi_disk(res))
5457 ipr_cmd->u.res = res;
5458 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5460 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5461 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5462 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5464 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5465 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5466 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5468 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5469 sizeof(struct ipr_supported_device));
5470 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5471 offsetof(struct ipr_misc_cbs, supp_dev));
5472 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5473 ioarcb->write_data_transfer_length =
5474 cpu_to_be32(sizeof(struct ipr_supported_device));
5476 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5477 IPR_SET_SUP_DEVICE_TIMEOUT);
5479 ipr_cmd->job_step = ipr_set_supported_devs;
5480 return IPR_RC_JOB_RETURN;
5483 return IPR_RC_JOB_CONTINUE;
5487 * ipr_setup_write_cache - Disable write cache if needed
5488 * @ipr_cmd: ipr command struct
5490 * This function sets up adapters write cache to desired setting
5493 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5495 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5497 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5499 ipr_cmd->job_step = ipr_set_supported_devs;
5500 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5501 struct ipr_resource_entry, queue);
5503 if (ioa_cfg->cache_state != CACHE_DISABLED)
5504 return IPR_RC_JOB_CONTINUE;
5506 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5507 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5508 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5509 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5511 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5513 return IPR_RC_JOB_RETURN;
5517 * ipr_get_mode_page - Locate specified mode page
5518 * @mode_pages: mode page buffer
5519 * @page_code: page code to find
5520 * @len: minimum required length for mode page
5523 * pointer to mode page / NULL on failure
5525 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5526 u32 page_code, u32 len)
5528 struct ipr_mode_page_hdr *mode_hdr;
5532 if (!mode_pages || (mode_pages->hdr.length == 0))
5535 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5536 mode_hdr = (struct ipr_mode_page_hdr *)
5537 (mode_pages->data + mode_pages->hdr.block_desc_len);
5540 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5541 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5545 page_length = (sizeof(struct ipr_mode_page_hdr) +
5546 mode_hdr->page_length);
5547 length -= page_length;
5548 mode_hdr = (struct ipr_mode_page_hdr *)
5549 ((unsigned long)mode_hdr + page_length);
5556 * ipr_check_term_power - Check for term power errors
5557 * @ioa_cfg: ioa config struct
5558 * @mode_pages: IOAFP mode pages buffer
5560 * Check the IOAFP's mode page 28 for term power errors
5565 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5566 struct ipr_mode_pages *mode_pages)
5570 struct ipr_dev_bus_entry *bus;
5571 struct ipr_mode_page28 *mode_page;
5573 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5574 sizeof(struct ipr_mode_page28));
5576 entry_length = mode_page->entry_length;
5578 bus = mode_page->bus;
5580 for (i = 0; i < mode_page->num_entries; i++) {
5581 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5582 dev_err(&ioa_cfg->pdev->dev,
5583 "Term power is absent on scsi bus %d\n",
5587 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5592 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5593 * @ioa_cfg: ioa config struct
5595 * Looks through the config table checking for SES devices. If
5596 * the SES device is in the SES table indicating a maximum SCSI
5597 * bus speed, the speed is limited for the bus.
5602 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5607 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5608 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5609 ioa_cfg->bus_attr[i].bus_width);
5611 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5612 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5617 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5618 * @ioa_cfg: ioa config struct
5619 * @mode_pages: mode page 28 buffer
5621 * Updates mode page 28 based on driver configuration
5626 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5627 struct ipr_mode_pages *mode_pages)
5629 int i, entry_length;
5630 struct ipr_dev_bus_entry *bus;
5631 struct ipr_bus_attributes *bus_attr;
5632 struct ipr_mode_page28 *mode_page;
5634 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5635 sizeof(struct ipr_mode_page28));
5637 entry_length = mode_page->entry_length;
5639 /* Loop for each device bus entry */
5640 for (i = 0, bus = mode_page->bus;
5641 i < mode_page->num_entries;
5642 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5643 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5644 dev_err(&ioa_cfg->pdev->dev,
5645 "Invalid resource address reported: 0x%08X\n",
5646 IPR_GET_PHYS_LOC(bus->res_addr));
5650 bus_attr = &ioa_cfg->bus_attr[i];
5651 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5652 bus->bus_width = bus_attr->bus_width;
5653 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5654 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5655 if (bus_attr->qas_enabled)
5656 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5658 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5663 * ipr_build_mode_select - Build a mode select command
5664 * @ipr_cmd: ipr command struct
5665 * @res_handle: resource handle to send command to
5666 * @parm: Byte 2 of Mode Sense command
5667 * @dma_addr: DMA buffer address
5668 * @xfer_len: data transfer length
5673 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5674 __be32 res_handle, u8 parm, u32 dma_addr,
5677 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5678 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5680 ioarcb->res_handle = res_handle;
5681 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5682 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5683 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5684 ioarcb->cmd_pkt.cdb[1] = parm;
5685 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5687 ioadl->flags_and_data_len =
5688 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5689 ioadl->address = cpu_to_be32(dma_addr);
5690 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5691 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5695 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5696 * @ipr_cmd: ipr command struct
5698 * This function sets up the SCSI bus attributes and sends
5699 * a Mode Select for Page 28 to activate them.
5704 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5706 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5707 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5711 ipr_scsi_bus_speed_limit(ioa_cfg);
5712 ipr_check_term_power(ioa_cfg, mode_pages);
5713 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5714 length = mode_pages->hdr.length + 1;
5715 mode_pages->hdr.length = 0;
5717 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5718 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5721 ipr_cmd->job_step = ipr_setup_write_cache;
5722 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5725 return IPR_RC_JOB_RETURN;
5729 * ipr_build_mode_sense - Builds a mode sense command
5730 * @ipr_cmd: ipr command struct
5731 * @res: resource entry struct
5732 * @parm: Byte 2 of mode sense command
5733 * @dma_addr: DMA address of mode sense buffer
5734 * @xfer_len: Size of DMA buffer
5739 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5741 u8 parm, u32 dma_addr, u8 xfer_len)
5743 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5744 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5746 ioarcb->res_handle = res_handle;
5747 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5748 ioarcb->cmd_pkt.cdb[2] = parm;
5749 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5750 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5752 ioadl->flags_and_data_len =
5753 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5754 ioadl->address = cpu_to_be32(dma_addr);
5755 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5756 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5760 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5761 * @ipr_cmd: ipr command struct
5763 * This function handles the failure of an IOA bringup command.
5768 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5770 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5771 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5773 dev_err(&ioa_cfg->pdev->dev,
5774 "0x%02X failed with IOASC: 0x%08X\n",
5775 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5777 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5778 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5779 return IPR_RC_JOB_RETURN;
5783 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5784 * @ipr_cmd: ipr command struct
5786 * This function handles the failure of a Mode Sense to the IOAFP.
5787 * Some adapters do not handle all mode pages.
5790 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5792 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5794 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5796 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5797 ipr_cmd->job_step = ipr_setup_write_cache;
5798 return IPR_RC_JOB_CONTINUE;
5801 return ipr_reset_cmd_failed(ipr_cmd);
5805 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5806 * @ipr_cmd: ipr command struct
5808 * This function send a Page 28 mode sense to the IOA to
5809 * retrieve SCSI bus attributes.
5814 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5816 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5819 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5820 0x28, ioa_cfg->vpd_cbs_dma +
5821 offsetof(struct ipr_misc_cbs, mode_pages),
5822 sizeof(struct ipr_mode_pages));
5824 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5825 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5827 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5830 return IPR_RC_JOB_RETURN;
5834 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5835 * @ipr_cmd: ipr command struct
5837 * This function enables dual IOA RAID support if possible.
5842 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5844 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5845 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5846 struct ipr_mode_page24 *mode_page;
5850 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5851 sizeof(struct ipr_mode_page24));
5854 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5856 length = mode_pages->hdr.length + 1;
5857 mode_pages->hdr.length = 0;
5859 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5860 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5863 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5864 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5867 return IPR_RC_JOB_RETURN;
5871 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5872 * @ipr_cmd: ipr command struct
5874 * This function handles the failure of a Mode Sense to the IOAFP.
5875 * Some adapters do not handle all mode pages.
5878 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5880 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5882 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5884 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5885 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5886 return IPR_RC_JOB_CONTINUE;
5889 return ipr_reset_cmd_failed(ipr_cmd);
5893 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5894 * @ipr_cmd: ipr command struct
5896 * This function send a mode sense to the IOA to retrieve
5897 * the IOA Advanced Function Control mode page.
5902 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5904 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5907 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5908 0x24, ioa_cfg->vpd_cbs_dma +
5909 offsetof(struct ipr_misc_cbs, mode_pages),
5910 sizeof(struct ipr_mode_pages));
5912 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5913 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5915 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5918 return IPR_RC_JOB_RETURN;
5922 * ipr_init_res_table - Initialize the resource table
5923 * @ipr_cmd: ipr command struct
5925 * This function looks through the existing resource table, comparing
5926 * it with the config table. This function will take care of old/new
5927 * devices and schedule adding/removing them from the mid-layer
5931 * IPR_RC_JOB_CONTINUE
5933 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5935 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5936 struct ipr_resource_entry *res, *temp;
5937 struct ipr_config_table_entry *cfgte;
5942 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5943 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5945 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5946 list_move_tail(&res->queue, &old_res);
5948 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5949 cfgte = &ioa_cfg->cfg_table->dev[i];
5952 list_for_each_entry_safe(res, temp, &old_res, queue) {
5953 if (!memcmp(&res->cfgte.res_addr,
5954 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5955 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5962 if (list_empty(&ioa_cfg->free_res_q)) {
5963 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5968 res = list_entry(ioa_cfg->free_res_q.next,
5969 struct ipr_resource_entry, queue);
5970 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5971 ipr_init_res_entry(res);
5976 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5979 list_for_each_entry_safe(res, temp, &old_res, queue) {
5981 res->del_from_ml = 1;
5982 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5983 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5985 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5989 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5990 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5992 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5995 return IPR_RC_JOB_CONTINUE;
5999 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6000 * @ipr_cmd: ipr command struct
6002 * This function sends a Query IOA Configuration command
6003 * to the adapter to retrieve the IOA configuration table.
6008 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6010 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6011 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6012 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6013 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6014 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6017 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6018 ioa_cfg->dual_raid = 1;
6019 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6020 ucode_vpd->major_release, ucode_vpd->card_type,
6021 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6022 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6023 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6025 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6026 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6027 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6029 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6030 ioarcb->read_data_transfer_length =
6031 cpu_to_be32(sizeof(struct ipr_config_table));
6033 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6034 ioadl->flags_and_data_len =
6035 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6037 ipr_cmd->job_step = ipr_init_res_table;
6039 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6042 return IPR_RC_JOB_RETURN;
6046 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6047 * @ipr_cmd: ipr command struct
6049 * This utility function sends an inquiry to the adapter.
6054 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6055 u32 dma_addr, u8 xfer_len)
6057 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6058 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6061 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6062 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6064 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6065 ioarcb->cmd_pkt.cdb[1] = flags;
6066 ioarcb->cmd_pkt.cdb[2] = page;
6067 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6069 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6070 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6072 ioadl->address = cpu_to_be32(dma_addr);
6073 ioadl->flags_and_data_len =
6074 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6076 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6081 * ipr_inquiry_page_supported - Is the given inquiry page supported
6082 * @page0: inquiry page 0 buffer
6085 * This function determines if the specified inquiry page is supported.
6088 * 1 if page is supported / 0 if not
6090 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6094 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6095 if (page0->page[i] == page)
6102 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6103 * @ipr_cmd: ipr command struct
6105 * This function sends a Page 0xD0 inquiry to the adapter
6106 * to retrieve adapter capabilities.
6109 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6111 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6113 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6114 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6115 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6118 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6119 memset(cap, 0, sizeof(*cap));
6121 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6122 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6123 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6124 sizeof(struct ipr_inquiry_cap));
6125 return IPR_RC_JOB_RETURN;
6129 return IPR_RC_JOB_CONTINUE;
6133 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6134 * @ipr_cmd: ipr command struct
6136 * This function sends a Page 3 inquiry to the adapter
6137 * to retrieve software VPD information.
6140 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6142 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6144 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6145 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6149 if (!ipr_inquiry_page_supported(page0, 1))
6150 ioa_cfg->cache_state = CACHE_NONE;
6152 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6154 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6155 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6156 sizeof(struct ipr_inquiry_page3));
6159 return IPR_RC_JOB_RETURN;
6163 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6164 * @ipr_cmd: ipr command struct
6166 * This function sends a Page 0 inquiry to the adapter
6167 * to retrieve supported inquiry pages.
6170 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6172 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6174 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6179 /* Grab the type out of the VPD and store it away */
6180 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6182 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6184 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6186 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6187 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6188 sizeof(struct ipr_inquiry_page0));
6191 return IPR_RC_JOB_RETURN;
6195 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6196 * @ipr_cmd: ipr command struct
6198 * This function sends a standard inquiry to the adapter.
6203 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6205 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6208 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6210 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6211 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6212 sizeof(struct ipr_ioa_vpd));
6215 return IPR_RC_JOB_RETURN;
6219 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6220 * @ipr_cmd: ipr command struct
6222 * This function send an Identify Host Request Response Queue
6223 * command to establish the HRRQ with the adapter.
6228 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6230 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6231 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6234 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6236 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6237 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6239 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6240 ioarcb->cmd_pkt.cdb[2] =
6241 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6242 ioarcb->cmd_pkt.cdb[3] =
6243 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6244 ioarcb->cmd_pkt.cdb[4] =
6245 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6246 ioarcb->cmd_pkt.cdb[5] =
6247 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6248 ioarcb->cmd_pkt.cdb[7] =
6249 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6250 ioarcb->cmd_pkt.cdb[8] =
6251 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6253 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6255 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6258 return IPR_RC_JOB_RETURN;
6262 * ipr_reset_timer_done - Adapter reset timer function
6263 * @ipr_cmd: ipr command struct
6265 * Description: This function is used in adapter reset processing
6266 * for timing events. If the reset_cmd pointer in the IOA
6267 * config struct is not this adapter's we are doing nested
6268 * resets and fail_all_ops will take care of freeing the
6274 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6277 unsigned long lock_flags = 0;
6279 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6281 if (ioa_cfg->reset_cmd == ipr_cmd) {
6282 list_del(&ipr_cmd->queue);
6283 ipr_cmd->done(ipr_cmd);
6286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6290 * ipr_reset_start_timer - Start a timer for adapter reset job
6291 * @ipr_cmd: ipr command struct
6292 * @timeout: timeout value
6294 * Description: This function is used in adapter reset processing
6295 * for timing events. If the reset_cmd pointer in the IOA
6296 * config struct is not this adapter's we are doing nested
6297 * resets and fail_all_ops will take care of freeing the
6303 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6304 unsigned long timeout)
6306 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6307 ipr_cmd->done = ipr_reset_ioa_job;
6309 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6310 ipr_cmd->timer.expires = jiffies + timeout;
6311 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6312 add_timer(&ipr_cmd->timer);
6316 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6317 * @ioa_cfg: ioa cfg struct
6322 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6324 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6326 /* Initialize Host RRQ pointers */
6327 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6328 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6329 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6330 ioa_cfg->toggle_bit = 1;
6332 /* Zero out config table */
6333 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6337 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6338 * @ipr_cmd: ipr command struct
6340 * This function reinitializes some control blocks and
6341 * enables destructive diagnostics on the adapter.
6346 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6348 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6349 volatile u32 int_reg;
6352 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6353 ipr_init_ioa_mem(ioa_cfg);
6355 ioa_cfg->allow_interrupts = 1;
6356 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6358 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6359 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6360 ioa_cfg->regs.clr_interrupt_mask_reg);
6361 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6362 return IPR_RC_JOB_CONTINUE;
6365 /* Enable destructive diagnostics on IOA */
6366 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6368 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6369 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6371 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6373 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6374 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6375 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6376 ipr_cmd->done = ipr_reset_ioa_job;
6377 add_timer(&ipr_cmd->timer);
6378 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6381 return IPR_RC_JOB_RETURN;
6385 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6386 * @ipr_cmd: ipr command struct
6388 * This function is invoked when an adapter dump has run out
6389 * of processing time.
6392 * IPR_RC_JOB_CONTINUE
6394 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6396 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6398 if (ioa_cfg->sdt_state == GET_DUMP)
6399 ioa_cfg->sdt_state = ABORT_DUMP;
6401 ipr_cmd->job_step = ipr_reset_alert;
6403 return IPR_RC_JOB_CONTINUE;
6407 * ipr_unit_check_no_data - Log a unit check/no data error log
6408 * @ioa_cfg: ioa config struct
6410 * Logs an error indicating the adapter unit checked, but for some
6411 * reason, we were unable to fetch the unit check buffer.
6416 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6418 ioa_cfg->errors_logged++;
6419 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6423 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6424 * @ioa_cfg: ioa config struct
6426 * Fetches the unit check buffer from the adapter by clocking the data
6427 * through the mailbox register.
6432 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6434 unsigned long mailbox;
6435 struct ipr_hostrcb *hostrcb;
6436 struct ipr_uc_sdt sdt;
6440 mailbox = readl(ioa_cfg->ioa_mailbox);
6442 if (!ipr_sdt_is_fmt2(mailbox)) {
6443 ipr_unit_check_no_data(ioa_cfg);
6447 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6448 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6449 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6451 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6452 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6453 ipr_unit_check_no_data(ioa_cfg);
6457 /* Find length of the first sdt entry (UC buffer) */
6458 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6459 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6461 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6462 struct ipr_hostrcb, queue);
6463 list_del(&hostrcb->queue);
6464 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6466 rc = ipr_get_ldump_data_section(ioa_cfg,
6467 be32_to_cpu(sdt.entry[0].bar_str_offset),
6468 (__be32 *)&hostrcb->hcam,
6469 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6472 ipr_handle_log_data(ioa_cfg, hostrcb);
6473 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6474 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6475 ioa_cfg->sdt_state == GET_DUMP)
6476 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6478 ipr_unit_check_no_data(ioa_cfg);
6480 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6484 * ipr_reset_restore_cfg_space - Restore PCI config space.
6485 * @ipr_cmd: ipr command struct
6487 * Description: This function restores the saved PCI config space of
6488 * the adapter, fails all outstanding ops back to the callers, and
6489 * fetches the dump/unit check if applicable to this reset.
6492 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6494 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6496 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6500 rc = pci_restore_state(ioa_cfg->pdev);
6502 if (rc != PCIBIOS_SUCCESSFUL) {
6503 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6504 return IPR_RC_JOB_CONTINUE;
6507 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6508 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6509 return IPR_RC_JOB_CONTINUE;
6512 ipr_fail_all_ops(ioa_cfg);
6514 if (ioa_cfg->ioa_unit_checked) {
6515 ioa_cfg->ioa_unit_checked = 0;
6516 ipr_get_unit_check_buffer(ioa_cfg);
6517 ipr_cmd->job_step = ipr_reset_alert;
6518 ipr_reset_start_timer(ipr_cmd, 0);
6519 return IPR_RC_JOB_RETURN;
6522 if (ioa_cfg->in_ioa_bringdown) {
6523 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6525 ipr_cmd->job_step = ipr_reset_enable_ioa;
6527 if (GET_DUMP == ioa_cfg->sdt_state) {
6528 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6529 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6530 schedule_work(&ioa_cfg->work_q);
6531 return IPR_RC_JOB_RETURN;
6536 return IPR_RC_JOB_CONTINUE;
6540 * ipr_reset_bist_done - BIST has completed on the adapter.
6541 * @ipr_cmd: ipr command struct
6543 * Description: Unblock config space and resume the reset process.
6546 * IPR_RC_JOB_CONTINUE
6548 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6551 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6552 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6554 return IPR_RC_JOB_CONTINUE;
6558 * ipr_reset_start_bist - Run BIST on the adapter.
6559 * @ipr_cmd: ipr command struct
6561 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6564 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6566 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6568 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6572 pci_block_user_cfg_access(ioa_cfg->pdev);
6573 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6575 if (rc != PCIBIOS_SUCCESSFUL) {
6576 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6577 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6578 rc = IPR_RC_JOB_CONTINUE;
6580 ipr_cmd->job_step = ipr_reset_bist_done;
6581 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6582 rc = IPR_RC_JOB_RETURN;
6590 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6591 * @ipr_cmd: ipr command struct
6593 * Description: This clears PCI reset to the adapter and delays two seconds.
6598 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6601 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6602 ipr_cmd->job_step = ipr_reset_bist_done;
6603 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6605 return IPR_RC_JOB_RETURN;
6609 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6610 * @ipr_cmd: ipr command struct
6612 * Description: This asserts PCI reset to the adapter.
6617 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6619 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6620 struct pci_dev *pdev = ioa_cfg->pdev;
6623 pci_block_user_cfg_access(pdev);
6624 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6625 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6626 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6628 return IPR_RC_JOB_RETURN;
6632 * ipr_reset_allowed - Query whether or not IOA can be reset
6633 * @ioa_cfg: ioa config struct
6636 * 0 if reset not allowed / non-zero if reset is allowed
6638 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6640 volatile u32 temp_reg;
6642 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6643 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6647 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6648 * @ipr_cmd: ipr command struct
6650 * Description: This function waits for adapter permission to run BIST,
6651 * then runs BIST. If the adapter does not give permission after a
6652 * reasonable time, we will reset the adapter anyway. The impact of
6653 * resetting the adapter without warning the adapter is the risk of
6654 * losing the persistent error log on the adapter. If the adapter is
6655 * reset while it is writing to the flash on the adapter, the flash
6656 * segment will have bad ECC and be zeroed.
6659 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6661 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6663 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6664 int rc = IPR_RC_JOB_RETURN;
6666 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6667 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6668 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6670 ipr_cmd->job_step = ioa_cfg->reset;
6671 rc = IPR_RC_JOB_CONTINUE;
6678 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6679 * @ipr_cmd: ipr command struct
6681 * Description: This function alerts the adapter that it will be reset.
6682 * If memory space is not currently enabled, proceed directly
6683 * to running BIST on the adapter. The timer must always be started
6684 * so we guarantee we do not run BIST from ipr_isr.
6689 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6696 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6698 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6699 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6700 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6701 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6703 ipr_cmd->job_step = ioa_cfg->reset;
6706 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6707 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6710 return IPR_RC_JOB_RETURN;
6714 * ipr_reset_ucode_download_done - Microcode download completion
6715 * @ipr_cmd: ipr command struct
6717 * Description: This function unmaps the microcode download buffer.
6720 * IPR_RC_JOB_CONTINUE
6722 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6725 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6727 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6728 sglist->num_sg, DMA_TO_DEVICE);
6730 ipr_cmd->job_step = ipr_reset_alert;
6731 return IPR_RC_JOB_CONTINUE;
6735 * ipr_reset_ucode_download - Download microcode to the adapter
6736 * @ipr_cmd: ipr command struct
6738 * Description: This function checks to see if it there is microcode
6739 * to download to the adapter. If there is, a download is performed.
6742 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6744 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6747 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6750 ipr_cmd->job_step = ipr_reset_alert;
6753 return IPR_RC_JOB_CONTINUE;
6755 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6756 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6757 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6758 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6759 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6760 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6761 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6763 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6764 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6766 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6767 IPR_WRITE_BUFFER_TIMEOUT);
6770 return IPR_RC_JOB_RETURN;
6774 * ipr_reset_shutdown_ioa - Shutdown the adapter
6775 * @ipr_cmd: ipr command struct
6777 * Description: This function issues an adapter shutdown of the
6778 * specified type to the specified adapter as part of the
6779 * adapter reset job.
6782 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6784 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6787 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6788 unsigned long timeout;
6789 int rc = IPR_RC_JOB_CONTINUE;
6792 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6793 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6794 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6795 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6796 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6798 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6799 timeout = IPR_SHUTDOWN_TIMEOUT;
6800 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6801 timeout = IPR_INTERNAL_TIMEOUT;
6802 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6803 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6805 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6807 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6809 rc = IPR_RC_JOB_RETURN;
6810 ipr_cmd->job_step = ipr_reset_ucode_download;
6812 ipr_cmd->job_step = ipr_reset_alert;
6819 * ipr_reset_ioa_job - Adapter reset job
6820 * @ipr_cmd: ipr command struct
6822 * Description: This function is the job router for the adapter reset job.
6827 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6830 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6833 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6835 if (ioa_cfg->reset_cmd != ipr_cmd) {
6837 * We are doing nested adapter resets and this is
6838 * not the current reset job.
6840 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6844 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6845 rc = ipr_cmd->job_step_failed(ipr_cmd);
6846 if (rc == IPR_RC_JOB_RETURN)
6850 ipr_reinit_ipr_cmnd(ipr_cmd);
6851 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6852 rc = ipr_cmd->job_step(ipr_cmd);
6853 } while(rc == IPR_RC_JOB_CONTINUE);
6857 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6858 * @ioa_cfg: ioa config struct
6859 * @job_step: first job step of reset job
6860 * @shutdown_type: shutdown type
6862 * Description: This function will initiate the reset of the given adapter
6863 * starting at the selected job step.
6864 * If the caller needs to wait on the completion of the reset,
6865 * the caller must sleep on the reset_wait_q.
6870 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6871 int (*job_step) (struct ipr_cmnd *),
6872 enum ipr_shutdown_type shutdown_type)
6874 struct ipr_cmnd *ipr_cmd;
6876 ioa_cfg->in_reset_reload = 1;
6877 ioa_cfg->allow_cmds = 0;
6878 scsi_block_requests(ioa_cfg->host);
6880 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6881 ioa_cfg->reset_cmd = ipr_cmd;
6882 ipr_cmd->job_step = job_step;
6883 ipr_cmd->u.shutdown_type = shutdown_type;
6885 ipr_reset_ioa_job(ipr_cmd);
6889 * ipr_initiate_ioa_reset - Initiate an adapter reset
6890 * @ioa_cfg: ioa config struct
6891 * @shutdown_type: shutdown type
6893 * Description: This function will initiate the reset of the given adapter.
6894 * If the caller needs to wait on the completion of the reset,
6895 * the caller must sleep on the reset_wait_q.
6900 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6901 enum ipr_shutdown_type shutdown_type)
6903 if (ioa_cfg->ioa_is_dead)
6906 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6907 ioa_cfg->sdt_state = ABORT_DUMP;
6909 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6910 dev_err(&ioa_cfg->pdev->dev,
6911 "IOA taken offline - error recovery failed\n");
6913 ioa_cfg->reset_retries = 0;
6914 ioa_cfg->ioa_is_dead = 1;
6916 if (ioa_cfg->in_ioa_bringdown) {
6917 ioa_cfg->reset_cmd = NULL;
6918 ioa_cfg->in_reset_reload = 0;
6919 ipr_fail_all_ops(ioa_cfg);
6920 wake_up_all(&ioa_cfg->reset_wait_q);
6922 spin_unlock_irq(ioa_cfg->host->host_lock);
6923 scsi_unblock_requests(ioa_cfg->host);
6924 spin_lock_irq(ioa_cfg->host->host_lock);
6927 ioa_cfg->in_ioa_bringdown = 1;
6928 shutdown_type = IPR_SHUTDOWN_NONE;
6932 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6937 * ipr_reset_freeze - Hold off all I/O activity
6938 * @ipr_cmd: ipr command struct
6940 * Description: If the PCI slot is frozen, hold off all I/O
6941 * activity; then, as soon as the slot is available again,
6942 * initiate an adapter reset.
6944 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6946 /* Disallow new interrupts, avoid loop */
6947 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6948 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6949 ipr_cmd->done = ipr_reset_ioa_job;
6950 return IPR_RC_JOB_RETURN;
6954 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6955 * @pdev: PCI device struct
6957 * Description: This routine is called to tell us that the PCI bus
6958 * is down. Can't do anything here, except put the device driver
6959 * into a holding pattern, waiting for the PCI bus to come back.
6961 static void ipr_pci_frozen(struct pci_dev *pdev)
6963 unsigned long flags = 0;
6964 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6966 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6967 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6972 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6973 * @pdev: PCI device struct
6975 * Description: This routine is called by the pci error recovery
6976 * code after the PCI slot has been reset, just before we
6977 * should resume normal operations.
6979 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6981 unsigned long flags = 0;
6982 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6984 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6985 if (ioa_cfg->needs_warm_reset)
6986 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6988 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6990 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6991 return PCI_ERS_RESULT_RECOVERED;
6995 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6996 * @pdev: PCI device struct
6998 * Description: This routine is called when the PCI bus has
6999 * permanently failed.
7001 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7003 unsigned long flags = 0;
7004 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7006 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7007 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7008 ioa_cfg->sdt_state = ABORT_DUMP;
7009 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7010 ioa_cfg->in_ioa_bringdown = 1;
7011 ioa_cfg->allow_cmds = 0;
7012 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7017 * ipr_pci_error_detected - Called when a PCI error is detected.
7018 * @pdev: PCI device struct
7019 * @state: PCI channel state
7021 * Description: Called when a PCI error is detected.
7024 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7026 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7027 pci_channel_state_t state)
7030 case pci_channel_io_frozen:
7031 ipr_pci_frozen(pdev);
7032 return PCI_ERS_RESULT_NEED_RESET;
7033 case pci_channel_io_perm_failure:
7034 ipr_pci_perm_failure(pdev);
7035 return PCI_ERS_RESULT_DISCONNECT;
7040 return PCI_ERS_RESULT_NEED_RESET;
7044 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7045 * @ioa_cfg: ioa cfg struct
7047 * Description: This is the second phase of adapter intialization
7048 * This function takes care of initilizing the adapter to the point
7049 * where it can accept new commands.
7052 * 0 on success / -EIO on failure
7054 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7057 unsigned long host_lock_flags = 0;
7060 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7061 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7062 if (ioa_cfg->needs_hard_reset) {
7063 ioa_cfg->needs_hard_reset = 0;
7064 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7066 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7070 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7071 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7073 if (ioa_cfg->ioa_is_dead) {
7075 } else if (ipr_invalid_adapter(ioa_cfg)) {
7079 dev_err(&ioa_cfg->pdev->dev,
7080 "Adapter not supported in this hardware configuration.\n");
7083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7090 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7091 * @ioa_cfg: ioa config struct
7096 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7100 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7101 if (ioa_cfg->ipr_cmnd_list[i])
7102 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7103 ioa_cfg->ipr_cmnd_list[i],
7104 ioa_cfg->ipr_cmnd_list_dma[i]);
7106 ioa_cfg->ipr_cmnd_list[i] = NULL;
7109 if (ioa_cfg->ipr_cmd_pool)
7110 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7112 ioa_cfg->ipr_cmd_pool = NULL;
7116 * ipr_free_mem - Frees memory allocated for an adapter
7117 * @ioa_cfg: ioa cfg struct
7122 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7126 kfree(ioa_cfg->res_entries);
7127 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7128 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7129 ipr_free_cmd_blks(ioa_cfg);
7130 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7131 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7132 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7134 ioa_cfg->cfg_table_dma);
7136 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7137 pci_free_consistent(ioa_cfg->pdev,
7138 sizeof(struct ipr_hostrcb),
7139 ioa_cfg->hostrcb[i],
7140 ioa_cfg->hostrcb_dma[i]);
7143 ipr_free_dump(ioa_cfg);
7144 kfree(ioa_cfg->trace);
7148 * ipr_free_all_resources - Free all allocated resources for an adapter.
7149 * @ipr_cmd: ipr command struct
7151 * This function frees all allocated resources for the
7152 * specified adapter.
7157 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7159 struct pci_dev *pdev = ioa_cfg->pdev;
7162 free_irq(pdev->irq, ioa_cfg);
7163 pci_disable_msi(pdev);
7164 iounmap(ioa_cfg->hdw_dma_regs);
7165 pci_release_regions(pdev);
7166 ipr_free_mem(ioa_cfg);
7167 scsi_host_put(ioa_cfg->host);
7168 pci_disable_device(pdev);
7173 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7174 * @ioa_cfg: ioa config struct
7177 * 0 on success / -ENOMEM on allocation failure
7179 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7181 struct ipr_cmnd *ipr_cmd;
7182 struct ipr_ioarcb *ioarcb;
7183 dma_addr_t dma_addr;
7186 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7187 sizeof(struct ipr_cmnd), 8, 0);
7189 if (!ioa_cfg->ipr_cmd_pool)
7192 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7193 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7196 ipr_free_cmd_blks(ioa_cfg);
7200 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7201 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7202 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7204 ioarcb = &ipr_cmd->ioarcb;
7205 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7206 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7207 ioarcb->write_ioadl_addr =
7208 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7209 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7210 ioarcb->ioasa_host_pci_addr =
7211 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7212 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7213 ipr_cmd->cmd_index = i;
7214 ipr_cmd->ioa_cfg = ioa_cfg;
7215 ipr_cmd->sense_buffer_dma = dma_addr +
7216 offsetof(struct ipr_cmnd, sense_buffer);
7218 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7225 * ipr_alloc_mem - Allocate memory for an adapter
7226 * @ioa_cfg: ioa config struct
7229 * 0 on success / non-zero for error
7231 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7233 struct pci_dev *pdev = ioa_cfg->pdev;
7234 int i, rc = -ENOMEM;
7237 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7238 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7240 if (!ioa_cfg->res_entries)
7243 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7244 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7246 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7247 sizeof(struct ipr_misc_cbs),
7248 &ioa_cfg->vpd_cbs_dma);
7250 if (!ioa_cfg->vpd_cbs)
7251 goto out_free_res_entries;
7253 if (ipr_alloc_cmd_blks(ioa_cfg))
7254 goto out_free_vpd_cbs;
7256 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7257 sizeof(u32) * IPR_NUM_CMD_BLKS,
7258 &ioa_cfg->host_rrq_dma);
7260 if (!ioa_cfg->host_rrq)
7261 goto out_ipr_free_cmd_blocks;
7263 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7264 sizeof(struct ipr_config_table),
7265 &ioa_cfg->cfg_table_dma);
7267 if (!ioa_cfg->cfg_table)
7268 goto out_free_host_rrq;
7270 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7271 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7272 sizeof(struct ipr_hostrcb),
7273 &ioa_cfg->hostrcb_dma[i]);
7275 if (!ioa_cfg->hostrcb[i])
7276 goto out_free_hostrcb_dma;
7278 ioa_cfg->hostrcb[i]->hostrcb_dma =
7279 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7280 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7281 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7284 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7285 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7287 if (!ioa_cfg->trace)
7288 goto out_free_hostrcb_dma;
7295 out_free_hostrcb_dma:
7297 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7298 ioa_cfg->hostrcb[i],
7299 ioa_cfg->hostrcb_dma[i]);
7301 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7302 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7304 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7305 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7306 out_ipr_free_cmd_blocks:
7307 ipr_free_cmd_blks(ioa_cfg);
7309 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7310 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7311 out_free_res_entries:
7312 kfree(ioa_cfg->res_entries);
7317 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7318 * @ioa_cfg: ioa config struct
7323 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7327 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7328 ioa_cfg->bus_attr[i].bus = i;
7329 ioa_cfg->bus_attr[i].qas_enabled = 0;
7330 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7331 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7332 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7334 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7339 * ipr_init_ioa_cfg - Initialize IOA config struct
7340 * @ioa_cfg: ioa config struct
7341 * @host: scsi host struct
7342 * @pdev: PCI dev struct
7347 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7348 struct Scsi_Host *host, struct pci_dev *pdev)
7350 const struct ipr_interrupt_offsets *p;
7351 struct ipr_interrupts *t;
7354 ioa_cfg->host = host;
7355 ioa_cfg->pdev = pdev;
7356 ioa_cfg->log_level = ipr_log_level;
7357 ioa_cfg->doorbell = IPR_DOORBELL;
7358 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7359 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7360 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7361 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7362 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7363 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7364 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7365 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7367 INIT_LIST_HEAD(&ioa_cfg->free_q);
7368 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7369 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7370 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7371 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7372 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7373 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7374 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7375 init_waitqueue_head(&ioa_cfg->msi_wait_q);
7376 ioa_cfg->sdt_state = INACTIVE;
7377 if (ipr_enable_cache)
7378 ioa_cfg->cache_state = CACHE_ENABLED;
7380 ioa_cfg->cache_state = CACHE_DISABLED;
7382 ipr_initialize_bus_attr(ioa_cfg);
7384 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7385 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7386 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7387 host->unique_id = host->host_no;
7388 host->max_cmd_len = IPR_MAX_CDB_LEN;
7389 pci_set_drvdata(pdev, ioa_cfg);
7391 p = &ioa_cfg->chip_cfg->regs;
7393 base = ioa_cfg->hdw_dma_regs;
7395 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7396 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7397 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7398 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7399 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7400 t->ioarrin_reg = base + p->ioarrin_reg;
7401 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7402 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7403 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7407 * ipr_get_chip_info - Find adapter chip information
7408 * @dev_id: PCI device id struct
7411 * ptr to chip information on success / NULL on failure
7413 static const struct ipr_chip_t * __devinit
7414 ipr_get_chip_info(const struct pci_device_id *dev_id)
7418 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7419 if (ipr_chip[i].vendor == dev_id->vendor &&
7420 ipr_chip[i].device == dev_id->device)
7421 return &ipr_chip[i];
7426 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
7427 * @pdev: PCI device struct
7429 * Description: Simply set the msi_received flag to 1 indicating that
7430 * Message Signaled Interrupts are supported.
7433 * 0 on success / non-zero on failure
7435 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
7437 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
7438 unsigned long lock_flags = 0;
7439 irqreturn_t rc = IRQ_HANDLED;
7441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7443 ioa_cfg->msi_received = 1;
7444 wake_up(&ioa_cfg->msi_wait_q);
7446 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7451 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
7452 * @pdev: PCI device struct
7454 * Description: The return value from pci_enable_msi() can not always be
7455 * trusted. This routine sets up and initiates a test interrupt to determine
7456 * if the interrupt is received via the ipr_test_intr() service routine.
7457 * If the tests fails, the driver will fall back to LSI.
7460 * 0 on success / non-zero on failure
7462 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
7463 struct pci_dev *pdev)
7466 volatile u32 int_reg;
7467 unsigned long lock_flags = 0;
7471 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7472 init_waitqueue_head(&ioa_cfg->msi_wait_q);
7473 ioa_cfg->msi_received = 0;
7474 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7475 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg);
7476 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7479 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
7481 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
7483 } else if (ipr_debug)
7484 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
7486 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg);
7487 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7488 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
7489 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7491 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7492 if (!ioa_cfg->msi_received) {
7493 /* MSI test failed */
7494 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
7496 } else if (ipr_debug)
7497 dev_info(&pdev->dev, "MSI test succeeded.\n");
7499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7501 free_irq(pdev->irq, ioa_cfg);
7509 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7510 * @pdev: PCI device struct
7511 * @dev_id: PCI device id struct
7514 * 0 on success / non-zero on failure
7516 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7517 const struct pci_device_id *dev_id)
7519 struct ipr_ioa_cfg *ioa_cfg;
7520 struct Scsi_Host *host;
7521 unsigned long ipr_regs_pci;
7522 void __iomem *ipr_regs;
7523 int rc = PCIBIOS_SUCCESSFUL;
7524 volatile u32 mask, uproc, interrupts;
7528 if ((rc = pci_enable_device(pdev))) {
7529 dev_err(&pdev->dev, "Cannot enable adapter\n");
7533 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7535 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7538 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7543 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7544 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7545 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7546 sata_port_info.flags, &ipr_sata_ops);
7548 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
7550 if (!ioa_cfg->ipr_chip) {
7551 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7552 dev_id->vendor, dev_id->device);
7553 goto out_scsi_host_put;
7556 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7558 if (ipr_transop_timeout)
7559 ioa_cfg->transop_timeout = ipr_transop_timeout;
7560 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7561 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7563 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7565 ioa_cfg->revid = pdev->revision;
7567 ipr_regs_pci = pci_resource_start(pdev, 0);
7569 rc = pci_request_regions(pdev, IPR_NAME);
7572 "Couldn't register memory range of registers\n");
7573 goto out_scsi_host_put;
7576 ipr_regs = pci_ioremap_bar(pdev, 0);
7580 "Couldn't map memory range of registers\n");
7582 goto out_release_regions;
7585 ioa_cfg->hdw_dma_regs = ipr_regs;
7586 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7587 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7589 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7591 pci_set_master(pdev);
7593 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
7595 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7599 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7600 ioa_cfg->chip_cfg->cache_line_size);
7602 if (rc != PCIBIOS_SUCCESSFUL) {
7603 dev_err(&pdev->dev, "Write of cache line size failed\n");
7608 /* Enable MSI style interrupts if they are supported. */
7609 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
7610 rc = ipr_test_msi(ioa_cfg, pdev);
7611 if (rc == -EOPNOTSUPP)
7612 pci_disable_msi(pdev);
7614 goto out_msi_disable;
7616 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
7617 } else if (ipr_debug)
7618 dev_info(&pdev->dev, "Cannot enable MSI.\n");
7620 /* Save away PCI config space for use following IOA reset */
7621 rc = pci_save_state(pdev);
7623 if (rc != PCIBIOS_SUCCESSFUL) {
7624 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7629 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7632 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7635 rc = ipr_alloc_mem(ioa_cfg);
7638 "Couldn't allocate enough memory for device driver!\n");
7643 * If HRRQ updated interrupt is not masked, or reset alert is set,
7644 * the card is in an unknown state and needs a hard reset
7646 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7647 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7648 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7649 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7650 ioa_cfg->needs_hard_reset = 1;
7651 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7652 ioa_cfg->needs_hard_reset = 1;
7653 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7654 ioa_cfg->ioa_unit_checked = 1;
7656 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7657 rc = request_irq(pdev->irq, ipr_isr,
7658 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
7662 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7667 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7668 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7669 ioa_cfg->needs_warm_reset = 1;
7670 ioa_cfg->reset = ipr_reset_slot_reset;
7672 ioa_cfg->reset = ipr_reset_start_bist;
7674 spin_lock(&ipr_driver_lock);
7675 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7676 spin_unlock(&ipr_driver_lock);
7683 ipr_free_mem(ioa_cfg);
7687 pci_disable_msi(pdev);
7688 out_release_regions:
7689 pci_release_regions(pdev);
7691 scsi_host_put(host);
7693 pci_disable_device(pdev);
7698 * ipr_scan_vsets - Scans for VSET devices
7699 * @ioa_cfg: ioa config struct
7701 * Description: Since the VSET resources do not follow SAM in that we can have
7702 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7707 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7711 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7712 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7713 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7717 * ipr_initiate_ioa_bringdown - Bring down an adapter
7718 * @ioa_cfg: ioa config struct
7719 * @shutdown_type: shutdown type
7721 * Description: This function will initiate bringing down the adapter.
7722 * This consists of issuing an IOA shutdown to the adapter
7723 * to flush the cache, and running BIST.
7724 * If the caller needs to wait on the completion of the reset,
7725 * the caller must sleep on the reset_wait_q.
7730 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7731 enum ipr_shutdown_type shutdown_type)
7734 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7735 ioa_cfg->sdt_state = ABORT_DUMP;
7736 ioa_cfg->reset_retries = 0;
7737 ioa_cfg->in_ioa_bringdown = 1;
7738 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7743 * __ipr_remove - Remove a single adapter
7744 * @pdev: pci device struct
7746 * Adapter hot plug remove entry point.
7751 static void __ipr_remove(struct pci_dev *pdev)
7753 unsigned long host_lock_flags = 0;
7754 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7757 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7758 while(ioa_cfg->in_reset_reload) {
7759 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7760 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7761 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7764 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7766 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7767 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7768 flush_scheduled_work();
7769 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7771 spin_lock(&ipr_driver_lock);
7772 list_del(&ioa_cfg->queue);
7773 spin_unlock(&ipr_driver_lock);
7775 if (ioa_cfg->sdt_state == ABORT_DUMP)
7776 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7777 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7779 ipr_free_all_resources(ioa_cfg);
7785 * ipr_remove - IOA hot plug remove entry point
7786 * @pdev: pci device struct
7788 * Adapter hot plug remove entry point.
7793 static void __devexit ipr_remove(struct pci_dev *pdev)
7795 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7799 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7801 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
7803 scsi_remove_host(ioa_cfg->host);
7811 * ipr_probe - Adapter hot plug add entry point
7814 * 0 on success / non-zero on failure
7816 static int __devinit ipr_probe(struct pci_dev *pdev,
7817 const struct pci_device_id *dev_id)
7819 struct ipr_ioa_cfg *ioa_cfg;
7822 rc = ipr_probe_ioa(pdev, dev_id);
7827 ioa_cfg = pci_get_drvdata(pdev);
7828 rc = ipr_probe_ioa_part2(ioa_cfg);
7835 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7842 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
7846 scsi_remove_host(ioa_cfg->host);
7851 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
7855 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7857 scsi_remove_host(ioa_cfg->host);
7862 scsi_scan_host(ioa_cfg->host);
7863 ipr_scan_vsets(ioa_cfg);
7864 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7865 ioa_cfg->allow_ml_add_del = 1;
7866 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7867 schedule_work(&ioa_cfg->work_q);
7872 * ipr_shutdown - Shutdown handler.
7873 * @pdev: pci device struct
7875 * This function is invoked upon system shutdown/reboot. It will issue
7876 * an adapter shutdown to the adapter to flush the write cache.
7881 static void ipr_shutdown(struct pci_dev *pdev)
7883 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7884 unsigned long lock_flags = 0;
7886 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7887 while(ioa_cfg->in_reset_reload) {
7888 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7889 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7890 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7893 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7895 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7898 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7899 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7900 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7901 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7902 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7903 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7904 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7905 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7906 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7907 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7908 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7911 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7912 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7913 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7914 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7915 IPR_USE_LONG_TRANSOP_TIMEOUT },
7916 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7917 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7918 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7919 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7920 IPR_USE_LONG_TRANSOP_TIMEOUT },
7921 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7922 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7923 IPR_USE_LONG_TRANSOP_TIMEOUT },
7924 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7925 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7926 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7927 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7928 IPR_USE_LONG_TRANSOP_TIMEOUT},
7929 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7930 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7931 IPR_USE_LONG_TRANSOP_TIMEOUT },
7932 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7933 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7934 IPR_USE_LONG_TRANSOP_TIMEOUT },
7935 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7936 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7937 IPR_USE_LONG_TRANSOP_TIMEOUT },
7938 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7939 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7940 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7941 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7942 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7943 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7944 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7945 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7946 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7947 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7948 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7949 IPR_USE_LONG_TRANSOP_TIMEOUT },
7950 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7951 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7952 IPR_USE_LONG_TRANSOP_TIMEOUT },
7953 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7954 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7955 IPR_USE_LONG_TRANSOP_TIMEOUT },
7958 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7960 static struct pci_error_handlers ipr_err_handler = {
7961 .error_detected = ipr_pci_error_detected,
7962 .slot_reset = ipr_pci_slot_reset,
7965 static struct pci_driver ipr_driver = {
7967 .id_table = ipr_pci_table,
7969 .remove = __devexit_p(ipr_remove),
7970 .shutdown = ipr_shutdown,
7971 .err_handler = &ipr_err_handler,
7975 * ipr_init - Module entry point
7978 * 0 on success / negative value on failure
7980 static int __init ipr_init(void)
7982 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7983 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7985 return pci_register_driver(&ipr_driver);
7989 * ipr_exit - Module unload
7991 * Module unload entry point.
7996 static void __exit ipr_exit(void)
7998 pci_unregister_driver(&ipr_driver);
8001 module_init(ipr_init);
8002 module_exit(ipr_exit);